• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a device for assembling a sensor (3) provided with a thread (6) in a specific orientation, with a support (2) provided with a threaded hole (12), the device comprising a first threaded portion. (9) adapted to cooperate with the thread (6) of the sensor and secondly, a second threaded portion (11), whose pitch is different from that of the first, adapted to cooperate with the threaded hole of the support (12). ). The device comprises a washer (14) having on one side, a bearing face (15) for the sensor and on the other side a contact face (16) with the support, the washer (14) being provided with a through bore (25) for mounting the assembly element, the washer and the element being mounted together by an assembly (30) ensuring their connection in rotation about the longitudinal axis, with a free translation .
    公开号:FR3027975A1
    申请号:FR1460491
    申请日:2014-10-31
    公开日:2016-05-06
    发明作者:Franck Ginet；Pascal Vouagner；Thierry Mazoyer
    申请人:01DB-METRAVIB；
    IPC主号:
    专利说明:

    [0001] The present invention relates to the technical field of systems or mechanisms for fixing a sensor in the general sense on a support. The object of the invention is more specifically, the systems for fixing on a support provided with a blind or difficult to access tapped hole, a sensor in a specific orientation, this sensor being provided with a thread frequently presented by a hole blind threaded. The object of the invention finds a particularly advantageous application, but not exclusively, in the field of mounting a triaxial accelerometer type sensor on a machine, when the measurement axes must be perfectly controlled. In the preferred field of application, it is known to mount a triaxial accelerometer type sensor on a machine in order to measure and characterize the vibratory levels of the machine. Such a sensor must be mounted on the machine on the one hand, in a determined orientation and on the other hand, to ensure quality clamping between the sensor and the machine. For an accelerometer-type sensor, the correct tightening of the sensor on the machine makes it possible to guarantee an optimum mechanical bandwidth for the assembly device used. In order to comply with such technical characteristics, the state of the art has proposed various solutions using an adapter in the form of a stud comprising, from one end, a first threaded portion adapted to cooperate with a blind threaded hole of the sensor and at the opposite end, a second threaded portion adapted to cooperate with the tapped hole on the machine. In order to position the sensor in the correct orientation when it is fixed with a dowel, it is known to interpose shims between the base of the sensor and the machine. In addition to the fact that the positioning operation of the sensor is not easy to carry out, the presence of wedges affects the quality of the interface made between the sensor and the machine. To avoid the use of wedges, it is known to screw the second part of the stud, not directly on the machine but on a fitting part fixed to the machine by gluing or magnetism for example. If this solution allows easy positioning of the sensor, this solution does not guarantee the best possible quality of assembly and interface between the sensor and the machine. US6435902 discloses a device for assembling a sensor on a machine using a stud having a first threaded portion for cooperating with a hole in the machine. The stud also has a second threaded portion intended to cooperate with the thread of a nut rotatably mounted at the base of the sensor. If this solution makes it possible to orient the sensor easily and to guarantee good contact between the sensor and the machine, such an assembly device can be implemented only for sensors equipped with a threaded nut mounted free to rotate. In other words, this solution can not be implemented on sensors available on the market not having at their base a threaded nut mounted free to rotate.
    [0002] The present invention aims at remedying the drawbacks of prior technical solutions by proposing a device for easily assembling a universal sensor provided with a thread in a given orientation relative to a support, this assembly device guaranteeing a rigid assembly. and effective between the sensor and the support.
    [0003] Another object of the invention is to propose an assembly device between a sensor and a support making it possible to guarantee a quality contact interface between the sensor and its support, in particular with regard to the mechanical bandwidth of the assembly device. . To achieve such an objective, the invention relates to a device for assembling in a determined orientation, a sensor provided with a thread, with a support provided with a threaded hole, the device comprising an assembly element having a longitudinal axis and comprising, on the one hand, from one end, a first threaded portion adapted to cooperate with the thread of the sensor and, on the other hand, from the opposite end, a second threaded portion adapted to cooperate with the tapped hole of the support, the first and second threaded portions having thread pitches such that the ratio of the pitch of the second part to the pitch of the first part is different from 1. According to the invention, the assembly device comprises a washer having on one side, a support face for the sensor and on the other side a contact face with the support, the washer being provided with a through bore for mounting the elem assembly of which the first threaded portion extends projecting from the bearing face and the second threaded portion protrudes from the contact face, the washer and the element being mounted between they by an assembly ensuring their connection in rotation about the longitudinal axis, with a free translation along the longitudinal axis, the washer being prehensile to allow, when the washer is interposed between the sensor and the support, on the one hand, to immobilize the washer during the rotation of the sensor relative to the washer, and secondly, to rotate the washer with its contact face in contact with the support while the sensor is immobilized.
    [0004] The device according to the invention also comprises in combination one and / or the other of the following additional characteristics: the assembly between the washer and the assembly element comprises a male member fitted on the washer or on the assembly member and a complementary female member, respectively arranged on the connecting element or the washer; the male and female members are arranged between a zone of the bore of the washer and an intermediate zone of the connecting element situated between the first and second threaded portions; - The washer has flats arranged on the edge of the washer to be prehensile; a table expressing the conversion ratios between, on the one hand, the angular value of the offset between the orientation taken by the sensor in the final clamping state and the desired orientation for the sensor and, on the other hand, the value of the rotation of the washer relative to the immobilized sensor; - The washer has a stop limiting the projecting translation of the first threaded portion relative to the bearing face of the washer; the washer has a shoulder of diameter smaller than the diameter of the washer, and defining the contact face with the support; - The sensor thread is presented by a blind threaded hole or a threaded pin cooperating with the first threaded portion of the assembly element 5 presented respectively by a screw or a blind threaded hole. Another object of the invention is to provide a simple and fast method for orienting a sensor provided with a thread difficult to access, with a support in the general sense. The method according to the invention aims to assemble in a determined orientation, a sensor provided with a thread, with a support provided with a tapped hole, the method comprising the following steps: - mount the sensor on the support to the using an assembly device comprising a washer traversed right through by a longitudinal axis connecting element having on the one hand a first threaded portion projecting from a bearing face of the washer and screwed into the thread of the sensor and secondly, a second threaded portion projecting from a contact face of the washer and screwed into the threaded hole of the support, the washer and the element. 20 of assembly being interconnected by an assembly in rotation about the longitudinal axis and with a free translation along the longitudinal axis; - Ensure the screwing of the sensor in a predetermined clamping state, with the faces of the washer in contact with respectively the sensor and the support; Highlighting the angular offset between the orientation taken by the sensor and the desired orientation for the sensor; - unscrew the sensor while keeping the washer immobilized; - Ensure relative pivoting between the washer and the sensor, by rotating the washer or the sensor and respectively immobilizing the sensor or the washer, according to an angular value to obtain the positioning of the sensor in its desired orientation; - And ensure a relative tightening between the sensor and the washer, by rotating the washer or sensor and respectively immobilizing the sensor or washer, until the sensor occupies its final assembly position.
    [0005] The assembly method according to the invention also comprises in combination one and / or the other of the following additional characteristics: - ensure the relative pivoting between the washer and the sensor, by keeping the sensor immobilized and by turning the washer an angle corresponding to the orientation shift affected by a factor dependent on the ratio between the pitch of the threaded portions of the connecting element, and then to maintain the washer immobilized while screwing the sensor to its final state of Tightening ; - ensure the relative pivoting between the washer and the sensor, keeping the washer immobilized and unscrewing the sensor until it occupies the desired orientation and then to keep the sensor immobilized in this orientation while screwing the washer up to obtain the final tightening state of the sensor; - To turn the washer in a direction depending on the ratio between the threaded parts pitch; rotating the washer by an angle corresponding to the orientation offset multiplied by a factor equal to 1 / (1-R), with R equal to the ratio of the pitch of the second threaded portion to the pitch of the first threaded portion. The invention also relates to equipment comprising a sensor assembled in a specific orientation to a support using a device according to the invention. Various other characteristics appear from the description given below with reference to the accompanying drawings which show, by way of non-limiting examples, embodiments of the subject of the invention. Figure 1 is a perspective view of the sensor assembled on a support with an assembly device according to the invention.
    [0006] Figure 2 is a partial section elevation of the sensor mounted on the support with the assembly device according to the invention. Figure 3 is a perspective view, seen from above of the assembly device in relation to a support. Figure 4 is a bottom view of the washer forming part of the assembly device according to the invention. Figure 5 is an elevational sectional view showing the mounting of the assembly device on a support.
    [0007] Figure 6 is a perspective view showing another embodiment of the assembly between the washer and the stud forming part of the assembly device according to the invention. Figure 7 is an elevational sectional view showing the abutment mounting of the stud inside the washer.
    [0008] Figures 8 to 12 are views illustrating the different steps of a first mounting procedure for mounting the sensor on a support already equipped with the assembly device according to the invention. Figures 13 and 14 are views illustrating a second mounting procedure describing the steps of mounting on the sensor, the assembly device according to the invention. Figures 15 to 19 are views illustrating the second mounting procedure describing the steps of mounting, on a support, the sensor equipped with the assembly device according to the invention. As is more particularly apparent from Figs. 1 to 6, the object of the invention relates to a device 1 for assembling on a support 2, a sensor 3 in the general sense. As can be seen from FIG. 1, in the final assembly position, the sensor 1 must be oriented relative to the support 2 so that its axis Ox schematized on its body 4 is aligned with the direction shown schematically by the line T made on the support 2. In this final assembly position, the sensor 3 is also in a final tightening state for which the sensor 3 is assembled to the support 2 according to the recommended tightening torque.
    [0009] The sensor 3 comprises a general body 4 having a bearing surface 5. The sensor 3 is provided with a thread 6 for mounting on the support 2 by means of the assembly device 1 according to the invention. According to the embodiment shown in the drawings, the thread 6 of the sensor is presented by a blind threaded hole 6 formed in the bearing face 5. In the following description, the thread 6 will be designated by the blind threaded hole 6 According to another embodiment, the thread 6 is presented by a threaded pin extending from the bearing face 5. The sensor 3 can be of any suitable nature. According to a preferred embodiment, the sensor 3 is a triaxial accelerometer. According to this application, the support 2 is a machine whose vibratory characteristics are to be analyzed. According to another possible application, the sensor 3 may be a camera that can be fixed and oriented on the support 2. The assembly device 1 according to the invention comprises an assembly element 8 such as a stud extending according to a longitudinal axis A. The stud 8 comprises, from one end, a first threaded portion 9, namely a screw in the example illustrated, adapted to cooperate with the blind threaded hole 6 of the sensor 3. This first threaded part 9 has a Nominal diameter thread Nc and pitch P. It should be noted that in the case where the thread 6 of the sensor is presented by a threaded pin then this first threaded portion 9 of the connecting element 8 is a blind threaded hole. The stud 8 comprises from its end opposite to that provided with the first threaded portion 9, a second threaded portion 11 adapted to cooperate with a threaded hole 12 arranged in the support 2.
    [0010] The object of the invention finds a particularly advantageous application in the case where the threaded hole 12 of the support 2 is blind or difficult to access. The second threaded portion 11 of the stud 8 has a thread of nominal diameter Ns and pitch P. According to one feature of the invention, the first 9 and second 11 threaded portions have threading pitches such that the ratio R of the pitch Ps of the second portion on the pitch Pc of the first portion 9 is different from 1. According to a preferred embodiment, the ratio R is strictly greater than 1. In the following description, the pitch of the first and second threaded portions 9 and 11 Stud are considered in the same direction for which the screwing is done clockwise. Of course, in another embodiment, the pitch of the first and second threaded portions 9 and 11 may be in the opposite direction. The assembly device 1 according to the invention also comprises a washer 14 having on one side a first face 15 said support with the bearing surface 5 of the sensor 3, and on the other side, a second face 16 said first contact with the support 2. The first and second faces 15 and 16 extend in planes parallel to each other. The washer 14 is advantageously grippable to be rotated or immobilized as will be explained more precisely in the following description. For this purpose, the washer 14 is arranged to present gripping means of the manual or mechanical type. For example, the washer 14 comprises as gripping means, flats 18 and / or knurling 19, arranged on the edge 21 of the washer 14. The washer 14 thus has a sufficient slice to allow the realization of flats likely to cooperate with a maneuvering tool such as a key. Similarly, the knurling 19, arranged on the edge 21 of the washer is adapted to allow manual gripping by an operator. According to a characteristic of the invention, the washer 14 is provided with a through bore 25 opening on the first and second faces 15 and 16. The bore 25 has a diameter for mounting the stud 8. Thus, the stud 8 can inserted in the bore 25 so that the first threaded portion 9 can protrude from the first face 15 while the second threaded portion 11 can protrude from the second face face 16. Thus, as is more particularly apparent from Figs. 2 and 5, the first threaded portion 9 of the stud 8 which protrudes from the bearing face 15 can be screwed into the blind hole 6 of the sensor 3 while the second threaded portion 11 of the stud 8 which is extends protruding from the contact face 16 can be screwed into the threaded hole 12 of the support 2. As will be explained in the following description, the stud 8 thus ensures the assembly between the sensor 3 and the support 2 with the interposition of the washer 14 whose first and second faces 15 and 16 are respectively in contact with the sensor 3 and the support 2. According to one characteristic of the invention, the washer 14 and the stud 8 are mounted together with the using an assembly 30 ensuring their connection in rotation about the longitudinal axis A of the stud, with a possibility of translation along said longitudinal axis A. Thus, this assembly 30 allows on the one hand, a rotational force applied on the washer 14 causes the rotation corres of the stud 8 and secondly, that the stud 8 can translate relative to the washer 14 along the longitudinal axis A. This assembly system 30 can be made in any appropriate manner. For example, this assembly 30 comprises a male element 31 extending radially on either side of the stud 8 in an intermediate zone 32 of the stud located between the first 9 and second 11 threaded portions. This male element 31 is intended to cooperate with a female member 33 of complementary shape arranged on the washer 14. This female member 33 is arranged in an area of the bore 25 of the washer according to a profile and a complementary section, to play male element 31. In the example illustrated in FIGS. 2 to 5, the male member 31 is formed by a pin extending radially on either side of the stud, whereas in the example illustrated in FIG. 6, the male member 31 is formed by a prismatic shape extending over the entire periphery of the stud in the intermediate zone 32. In the example illustrated in FIGS. 2 to 5, the female member 33 is formed by a slot opening formed on either side of the bore 25 while in the example illustrated in FIG. 6, the female member 33 is made by a prismatic housing arranged to communicate with the housing 25. The female member 33 and the male member 31 have complementary prismatic shapes to ensure a rotational connection between the stud 8 and the washer 14. The slot or the housing 33 is arranged on a determined height to allow a relative translation between the stud 8 and the washer 14 in a direction parallel to the longitudinal axis A of the stud.
    [0011] According to a preferred embodiment, the washer 14 comprises a stop 35 limiting the translation projecting from the first threaded portion 9 relative to the first face 15 of the washer 14. It should be understood that this stop limits the exit of the part threaded 9 relative to the first face 15 thus limiting the depression of the stud in the blind threaded hole 6 of the sensor. This stop 35 thus makes it possible to avoid damaging the sensor by too much screwing of the stud inside the sensor 3. In the example illustrated in the drawings, the stop 35 is provided by the bottom of the slot, namely the female member 33. The female member is arranged from the second face 16 of the washer 14 to a specific depth allowing the free sliding of the stud relative to the washer. According to a preferred embodiment illustrated in FIG. 4, the washer 14 comprises a boss or a shoulder 22 defining the face 16 of contact with the support 2. The contact face 16 has a smaller diameter than the diameter of the washer 14. As is more particularly apparent from FIG. 4, the contact face 16 extends back from the slice 21 of the washer. This solution is particularly advantageous for allowing the sensor to be adapted to a non-planar support 2. In this case, the tapped hole 12 is arranged in the center of a counterbore made on the support 2 and adapted to define a receiving housing for the boss 22. Of course, the depth of the counterbore is less than the height of the boss 22 for ensure effective contact between the support 2 and the contact face 16 of the washer 14.
    [0012] The assembly device 1 according to the invention makes it possible to easily mount and in a determined orientation, the sensor 3 on a support 2 according to two operating modes each comprising essentially two phases, namely a mounting phase proper of the sensor on the support and a phase of adjusting the orientation of the sensor on the support to obtain the final assembly position with the recommended tightening torque.
    [0013] The first operating mode is to equip the support 2 with the stud 8 and the washer 14 prior to mounting the sensor while the second operating mode is to equip the sensor 3 of the stud 8 and the washer 14 before mounting on the support 2 The first procedure consists in equipping the support 2 with the stud 8 and the washer 14. Thus, as is more precisely apparent from FIGS. 3 and 5, the second threaded portion 11 of the stud 8 is screwed into the support 2 and the washer 14 is placed on the stud 8 by penetrating the first threaded portion 9 of the stud through the through bore 25 of the washer. The washer 14 is positioned so that its contact face 16 comes into plane support on the support 2. It should be noted that in the case where the washer 14 comprises a stop 35, the washer 14 can be rotated to drive in rotation the stud 8 to screw in the support 2 to allow the contact surface 16 of the washer to bear against the support 2. Moreover, as illustrated in FIG. 7, the male member 31 may be in contact with the stop 35. This stop position illustrated in FIG. 7 corresponds to the maximum extension position of the first threaded portion 9 relative to the first face 15 of the washer. This stop position thus prevents a possibility of adjustment including screwing of the washer as will be explained in the following description. In order to allow all adjustment possibilities in the adjustment phase of the orientation, the washer 14 is rotated so as to position the pin 8 in an intermediate position (illustrated in Fig. 5) between these contact positions by its male member. 31, with the stop 35 or with the support 2.
    [0014] The mounting method then consists in placing the sensor 3 on the support 2 equipped with the stud 8 and the washer 14. For this purpose, the sensor 3 is approached from the support 2 to ensure the cooperation of the first threaded portion 9 of the Stud 3 with the blind threaded hole 6 of the sensor 3. When the sensor 3 is screwed onto the stud 8 (arrow F of Fig. 8), the washer 14 is held stationary with its second face 16 in contact with the support 2 (arrows F1, of Fig. 8). The sensor 3 is thus screwed into a predetermined clamping state corresponding to the final tightening state, ie for which the sensor 3 is assembled to the support 2 according to the recommended tightening torque. In this position illustrated in FIG. 2, the sensor 3 is mounted on the support with the aid of the assembly device 1 according to the invention so that the first threaded portion 9 of the stud 8 is screwed into the blind threaded hole 6 of the sensor 3 while the second threaded portion 11 is screwed into the threaded hole 12 of the support 2. In this mounting position, the washer 14 is interposed between the sensor 3 and the support 2, with the support 2 in contact with the contact face 16 of the washer and with the sensor 3 in contact with the bearing face 15 in a predetermined clamping state corresponding to the final state of assembly. However, the sensor 3 which is mounted on the support 2 is not necessarily in a good orientation so that the adjustment phase of the orientation of the sensor with respect to the support 2 may be carried out. the orientation of the sensor 2 consists of highlighting the angular offset θ between the orientation taken by the sensor 3 and the desired orientation for the sensor 3. As is more clearly apparent from FIG. 9, the sensor 3 has an orientation Ox which must be placed in the direction shown schematically by the line T on the support 2. In the example illustrated in FIG. 9, the sensor 3 is shifted angularly by an angle θ with respect to the desired direction T. The adjustment phase of the orientation of the sensor 3 will consist in positioning the sensor so that its orientation Ox is aligned with the desired direction T. For this purpose, the method consists in partially loosening then unscrewing the sensor 3 while keeping the washer 14 immobilized (FIG 10). The sensor 3 is unscrewed in a direction of rotation F taken counter-clockwise for the case of a traditional net with pitch Pc said right, resulting in detachment of the sensor from the bearing face 15 of the washer 14 It should be noted that the angular offset θ to be compensated can only go in the direction corresponding to the unscrewing of the sensor 3.
    [0015] As is more particularly apparent from FIG. 11, the method then consists in immobilizing in rotation the sensor 3 (arrows F) and in ensuring the pivoting of the washer 14 (arrow F1) according to an angular value OR making it possible to obtain the positioning of the sensor 3 according to its desired orientation. In the example shown, the washer 14 is rotated by an angle OR corresponding to the offset of orientation Oc affected by a factor depending on the ratio between the pitch of the threaded portions 9, 11 of the stud. This factor is equal to 1 / (1-R) with R equal to the ratio of the pitch Ps of the second threaded portion 11 on the pitch Pc of the first threaded portion 9. It is considered here that the value of a pitch Ps or Pc is positive if the pitch of the net is right and negative if it is on the left. This adjustment phase can, if necessary, be performed several times in succession to arrive at a perfect final adjustment. According to an advantageous characteristic of the invention, the object of the invention is to establish a table expressing the conversion ratios between, on the one hand, the angular value of the shift between the orientation taken by the sensor in the final state clamping and the desired orientation for the sensor and secondly, the value of the rotation OR of the washer 14 relative to the sensor held immobilized. Thus, depending on the angle of rotation necessary to bring the sensor into its correct orientation, the angular value of the rotation of the washer can be known from the knowledge of the pitch of the threaded portions 9 and 11 of the stud 8. For example, if the pitch of the first 9 and second 11 threaded portions are respectively 1 mm and 1.25 mm, then the ratio of the pitch of the second threaded portion 11 to the pitch of the first threaded portion 9 is equal to 1.25. Thus, the rotation angle OR of the washer 14 is equal to Oc x1 / (1-R), that is equal to -4x Oc. According to this example, if the orientation offset angle θc is equal to 150 then the washer must be rotated by -600, or 600 in the opposite direction to the rotation of the sensor. Similarly, if the angle θc is equal to 60 ° then the washer must be rotated -240 °, that is 240 ° in the opposite direction to the rotation of the sensor. As explained above, the washer 14 is rotated in a direction depending on the ratio between the pitch of the threaded portions 9 and 11. A table expressing the conversion ratios can thus be defined for each type of stud 8 having steps taken in a given range to allow to adapt to different steps threaded holes 6 and 12 of the sensor and the support. The method comprises rotating the washer 14 in a direction opposite to that in which the sensor is to be oriented to occupy its proper orientation. After the rotation of the washer 14 according to the corresponding angle, the washer 14 is held stationary (arrows F1 Fig. 12) while the sensor 3 is tightened until the sensor 15 occupies its final clamping state. The sensor 3 thus returns in contact with the bearing face 15 according to the recommended tightening torque, being oriented properly with respect to the support 2. FIGS. 13 to 19 illustrate the other method of mounting the sensor 3 on the support 2. This procedure is to equip the sensor 3 20 of the stud 8 and the washer 14. This procedure has the advantage of being able to achieve an assembly The process consists in mounting the pin 8 in the washer 14 so that the first threaded portion 9 extends projecting with respect to the first face 15 of the spindle 14. washer 14 (Fig. 13). The sensor 3 is screwed onto the stud 8 by the relative rotation (arrow F Fig. 14) between the sensor 3 and the stud 8. According to a preferred embodiment, the clamping is carried out until the stop position is that is, until the male member 31 comes into contact with the stop 35 (Fig. 16). The method then consists in ensuring the positioning on the support 2 of the sensor 3 equipped with the stud 8 and the washer 14. It should be noted that in the mounted position, the second threaded portion 11 protrudes from to the washer 14 fixed on the sensor (Fig. 14). As is more particularly apparent from FIG. 15, the sensor assembly 3, stud 8 and washer 14 is screwed onto the support 2 by the cooperation of the second threaded portion 11 with the threaded hole 12 of the support 2. This assembly is screwed (arrow F Fig. 15) to the contact face 16 of the washer 14 comes to bear on the support 2 (FIG.16). In this position, the sensor 3 is screwed into a predetermined clamping state which does not necessarily correspond to the final tightening state.
    [0016] This predetermined tightening state is such that the washer 14 bears on the support 2 and with the sensor 3. In this position illustrated in FIG. 16, the sensor 3 is mounted on the support with the aid of the assembly device 1 according to the invention so that the first threaded portion 9 of the stud 8 is screwed into the blind threaded hole 6 of the sensor 3 while the second threaded portion 11 is screwed into the threaded hole 12 of the support 2. In this mounting position, the washer 14 is interposed between the sensor 3 and the support 2, with the sensor 3 in contact with the support face 15 in a predetermined clamping state and with the support 2 in contact with the contact face 16 of the washer. However, the sensor 3 is not necessarily positioned in its proper orientation so that the adjustment phase of the orientation of the sensor is eventually performed. This phase of adjusting the orientation of the sensor consists in highlighting the angular offset between the orientation taken by the sensor 3 and the desired orientation for the sensor 3. For example, it is considered that the sensor 3 is angularly offset by an angle Oc with respect to the desired direction T (Fig. 9). The method consists of loosening the sensor 3 while immobilizing the washer 14 in rotation. Thus, as is apparent from FIG. 17, the washer 14 is immobilized (arrows F1) while the sensor 3 is rotated (arrow F) to obtain the positioning of the sensor according to its desired orientation. This operation leads to detachment of the sensor from the bearing face 15 of the washer. The sensor 3 is rotated so that its orientation Ox is positioned in the direction of the line T schematized on the support 2 (FIG 18). Once the sensor 3 is properly oriented relative to the support 2, then the sensor 3 is held stationary (arrows F, Fig. 18) while the washer 14 is rotated (arrow F1) until the final state of tightening, ie for which the sensor 3 is assembled to the support 2 according to the recommended tightening torque. The screwing of the washer thus makes it possible to bring the bearing surface 15 into contact with the sensor 3 which is moreover correctly oriented. It should be noted that the necessary angle of rotation of the washer is equal to the angle of rotation of the sensor necessary to orient it in the desired direction multiplied by a factor equal to 1 / (1-R), plus the necessary angle to ensure the correct tightening torque. The assembly device according to the invention thus makes it easy to assemble in a given orientation, with respect to a support, a sensor of universal character provided with a blind tapped hole. The assembly device according to the invention guarantees a rigid and efficient connection between the sensor and the support. The sensor 3 fixed on a support 2 with the aid of the assembly device 1 together form an equipment that can relate to various technical fields. The invention is not limited to the examples described and shown because various modifications can be made without departing from its scope.
    权利要求:
    Claims (14)
    [0001]
    CLAIMS1 - Device for assembling in a determined orientation, a sensor (3) provided with a thread (6), with a support (2) provided with a threaded hole (12), the device comprising an assembly element (8) ) having a longitudinal axis (A) and having on the one hand, from one end, a first threaded portion (9) adapted to cooperate with the thread (6) of the sensor and on the other hand, from the opposite end, a second threaded portion (11) adapted to cooperate with the threaded hole of the support (12), the first (9) and second (11) threaded portions having thread pitches such as the ratio of the pitch of the second part in the pitch of the first part is different from 1, characterized in that it comprises a washer (14) having on one side, a bearing face (15) for the sensor and on the other side a face contact (16) with the support, the washer (14) being provided with a through bore (25) for the m assembly member whose first threaded portion (9) protrudes from the bearing face (15) and whose second threaded portion (11) protrudes from the contact face (16), the washer and the element being mounted together by an assembly (30) ensuring their connection in rotation about the longitudinal axis, with a free translation along the longitudinal axis (A), the washer (14) being grippable to allow, when the washer is interposed between the sensor (3) and the support (2), on the one hand, to immobilize the washer (14) during the rotation of the sensor relative to the washer, and on the other hand, rotating the washer (14) with its contact face (16) in contact with the support (2) while the sensor (3) is immobilized.
    [0002]
    2 - Device according to claim 1 characterized in that the assembly (30) between the washer (14) and the connecting member (8) comprises a male member (31) arranged on the washer (14) or on the assembly element and a complementary female member (33), arranged respectively on the connecting element (8) or the washer (14).
    [0003]
    3 - Device according to claim 2 characterized in that the male members (31) and female (33) are arranged between a zone of the larval bore and an intermediate zone (32) of the connecting element located between the first and second threaded portions.
    [0004]
    4 - Device according to one of claims 1 to 3 characterized in that the washer (14) comprises flats (18) arranged on the edge of the washer to be grippable.
    [0005]
    5 - Device according to one of claims 1 to 4 characterized in that it comprises at least one table expressing the conversion ratio between on the one hand the angular value of the offset (Oc) between the orientation taken by the sensor ( 3) in the final state of tightening and the desired orientation for the sensor and secondly the value of the rotation of the washer relative to the sensor held immobilized.
    [0006]
    6 - Device according to one of claims 1 to 5 characterized in that the washer (14) comprises a stop (35) limiting the projecting translation of the first threaded portion relative to the bearing face of the washer.
    [0007]
    7 - Device according to one of claims 1 to 6 characterized in that the washer (14) has a shoulder (22) of diameter smaller than the diameter of the washer, and defining the contact face (16) with the support (2). ).
    [0008]
    8 - Device according to one of claims 1 to 7, characterized in that the thread (6) of the sensor is presented by a blind threaded hole or a threaded pin cooperating with the first threaded portion (9) of the element d assembly (8) presented respectively by a screw or a blind threaded hole.
    [0009]
    9 - Method for assembling according to a determined orientation, a sensor provided with a thread (6), with a support (2) provided with a threaded hole (12), characterized in that it comprises the following steps: the sensor (3) on the support (2) by means of an assembly device (1) comprising a washer (14) traversed right through by an assembly element (8) of longitudinal axis ( A) having, on the one hand, a first threaded portion (9) protruding from a bearing face (15) of the washer and screwed into the thread (6) of the sensor and on the other hand, a second threaded portion (11) extending in equilibrium with respect to a contact face (16) of the washer (14) and screwed into the threaded hole (12) of the support (2), the washer (14) and the connecting element being interconnected by an assembly (30) rotating about the longitudinal axis (A) and with a free translation along the longitudinal axis (A), - ensuring the screwing of the catch ur (3) in a predetermined clamping state, with the faces (15, 16) of the washer in contact with respectively the sensor (3) and the support (2), - highlighting the angular offset between the orientation taken by the sensor and the desired orientation for the sensor, - unscrew the sensor (3) while keeping the washer (14) stationary, - ensure the relative pivoting between the washer (14) and the sensor (3), by rotating the washer or sensor and respectively immobilizing the sensor or the washer, according to an angular value to obtain the positioning of the sensor according to its desired orientation, - and ensure a relative tightening between the sensor (3) and the washer (14), by making turn the washer or the sensor and respectively immobilize the sensor or the washer, until the sensor occupies its final assembly position.
    [0010]
    10 - Process according to claim 9 characterized in that it consists in ensuring the relative pivoting between the washer (14) and the sensor (3), maintaining the sensor (3) immobilized and turning the washer (14) of an angle corresponding to the offset of orientation (Oc) assigned a factor depending on the ratio between the pitch of the threaded portions of the connecting element, and that it then consists in maintaining the washer (14) immobilized while by screwing the sensor (3) to its final clamping state.
    [0011]
    11 - Process according to claim 9 characterized in that it consists in ensuring the relative pivoting between the washer (14) and the sensor (3), keeping the washer immobilized and unscrewing the sensor until it occupies the desired orientation and that it then consists in keeping the sensor immobilized in this orientation while screwing the washer until the final clamping state of the sensor.
    [0012]
    12 - Process according to claim 10 characterized in that it consists in turning the washer (14) in a direction depending on the ratio between the pitch of the threaded portions.
    [0013]
    13 - Process according to claim 10 characterized in that it consists in turning the washer (14) by an angle corresponding to the shift orientation multiplied by a factor equal to 11 (1-R), with R equal to the ratio of not the second threaded portion (11) on the pitch of the first threaded portion (9).
    [0014]
    14 - Equipment characterized in that it comprises a sensor (3) assembled in a specific orientation to a support (2) with a device (1) according to one of claims 1 to 8.
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    同族专利:
    公开号 | 公开日
    WO2016066972A1|2016-05-06|
    US20170248451A1|2017-08-31|
    FR3027975B1|2017-05-05|
    JP2017538075A|2017-12-21|
    EP3213039A1|2017-09-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2692352A3|1992-06-10|1993-12-17|Electronsystem Md|Sealed liquid containers parameters sensor e.g. for density, pressure and temp - uses mounting fixed to container with non-return valve operated when sensor is screwed onto mounting.|
    DE202004000512U1|2003-01-24|2004-04-08|Prüftechnik Dieter Busch AG|Accelerometer mount fixing has threaded bolt attached by adapter nut with opposite threads|
    DE102004046559A1|2004-09-24|2006-04-06|A.D.C. Automotive Distance Control Systems Gmbh|Component e.g. sensor, fastening unit, has adjusting nut arranged at one threaded shank of fixing dual-thread bolt and designed for adjustable fastening of components e.g. sensor, over the range of preset value|
    EP1703286A1|2005-03-16|2006-09-20|Prüftechnik Dieter Busch Ag|Vibration sensor or transducer|
    US6435902B1|2000-07-11|2002-08-20|Csi Technology, Inc.|Sensor mount|US10866256B2|2018-07-20|2020-12-15|George V. Zusman|Universal sensor mount|
    JP6696537B2|2018-08-09|2020-05-20|ダイキン工業株式会社|Compressor and method of manufacturing compressor|
    EP3786596A1|2019-08-27|2021-03-03|Sulzer Management AG|A vibration detection instrument assembly and method of assembling a vibration detection instrument assembly|
    US11226229B2|2019-11-06|2022-01-18|Computational Systems, Inc.|Vibration sensor mounting structure|
    WO2021087862A1|2019-11-07|2021-05-14|南京溧航仿生产业研究院有限公司|Easy-to-adjust bionic sensor|
    US20210403284A1|2020-06-27|2021-12-30|Otis Elevator Company|Sensor orientation indicator for condition based maintenancesensing|
    法律状态:
    2015-10-23| PLFP| Fee payment|Year of fee payment: 2 |
    2016-05-06| PLSC| Search report ready|Effective date: 20160506 |
    2016-10-21| PLFP| Fee payment|Year of fee payment: 3 |
    2017-10-23| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1460491A|FR3027975B1|2014-10-31|2014-10-31|DEVICE AND METHOD FOR MOUNTING AND ORIENTING A SENSOR ON A SUPPORT|FR1460491A| FR3027975B1|2014-10-31|2014-10-31|DEVICE AND METHOD FOR MOUNTING AND ORIENTING A SENSOR ON A SUPPORT|
    PCT/FR2015/052924| WO2016066972A1|2014-10-31|2015-10-29|Device and method for mounting and orienting a sensor on a support|
    JP2017523348A| JP2017538075A|2014-10-31|2015-10-29|Apparatus and method for positioning a sensor on a support|
    US15/521,642| US20170248451A1|2014-10-31|2015-10-29|Device and method for mounting and orienting a sensor on a support|
    EP15798523.5A| EP3213039A1|2014-10-31|2015-10-29|Device and method for mounting and orienting a sensor on a support|
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