• 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 present invention relates to a drilling machine (10) for excavating in a soil (S) in a vertical drilling direction (F), comprising: a support (12) having a longitudinal direction (L); a drilling module (14) provided with cutting members (16), the drilling module being movable in translation relative to the support; a displacement device disposed between the support and the drilling module, for moving the drilling module (14) relative to the support in the longitudinal direction of the support; The invention is characterized in that the displacement device comprises damping means (70) for damping the vibrations generated by the drilling module during the drilling.
    公开号:FR3041023A1
    申请号:FR1558426
    申请日:2015-09-10
    公开日:2017-03-17
    发明作者:Sara Cascarino；Daniel Perpezat；Laurent Pivert；Regis Bernasinski
    申请人:Soletanche Freyssinet SA；
    IPC主号:
    专利说明:

    Background of the invention
    The present invention relates to the field of drilling in the ground, in particular to manufacture foundations, such as for example continuous screens consisting of juxtaposed concrete wall elements.
    More specifically, it relates to a drilling machine for making excavations in the ground, and more particularly in hard terrain. The invention particularly relates to a drilling machine for excavating in a soil in a substantially vertical direction of drilling, said drilling machine comprising: a support having a substantially vertical longitudinal direction; a drilling module provided with cutting members, the drilling module being movable in translation relative to the support in the longitudinal direction of the support; a displacement device disposed between the support and the drilling module for moving the drilling module relative to the support in the longitudinal direction of the support.
    This type of drilling machine is generally used for drilling in hard ground, for example in granite. The displacement device allows to exert a complementary thrust on the drilling tools, which aims to facilitate the excavation. Another interest is to precisely control the thrust exerted on the cutting members.
    It is known that the drilling of hard ground leads to the appearance of vibrations in the drilling module, which propagate throughout the machine and can damage the structure of the drilling machine. This is particularly the case when the drilling machine is a cutter. Rotating cutting tools are not permanently in contact with the ground: they hit it every time the drum makes a turn. The superimposition of all these shocks results in vibrations of the drilling machine. These shocks are all the more violent as the terrain is hard.
    Object and summary of the invention
    An object of the present invention is to overcome the aforementioned drawbacks by proposing a drilling machine that is more robust for drilling in hard terrain. The invention achieves its goal by the fact that the displacement device comprises damping means for damping the vibrations generated by the drilling module during the drilling.
    The vibrations generated due to shocks to the cutting members during drilling are thus damped by the damping means which are arranged between the drilling module and the support. Also, thanks to the invention, the vibrations generated by the drilling module are damped and affect neither the cutting members nor the support, which advantageously allows not to damage the drilling machine.
    According to the invention, the displacement device has the dual function of moving the drilling module relative to the support, and to dampen the vibrations generated by the cutting elements of the drilling module.
    According to a first embodiment, the displacement device comprises at least one hydraulic cylinder, connected to the support and to the drilling module, and the damping means comprise a hydraulic damping device fluidly connected to the hydraulic cylinder.
    The hydraulic cylinder is advantageously disposed between the support and the drilling module. It allows first of all to be able to move in translation the drilling module relative to the support.
    It is understood that in this first embodiment, the damping is achieved hydraulically, thanks to the hydraulic damping device. The latter preferably comprises, but not exclusively, a spring accumulator with at least one nozzle. During an impact, the oil contained in one of the chambers of the hydraulic cylinder is compressed and flows through the nozzle towards the spring-loaded accumulator, to dampen the rise in pressure of the oil, which makes it possible to achieve depreciation. Preferably, the leakage rate of the nozzle and the spring preload of the spring accumulator are remotely adjustable, which makes it possible to adjust the damping coefficient and the recoil resistance of the cylinders according to the weight applied to the organs cutting.
    According to a preferred variant, the drilling module comprises a lower section carrying the cutting members, and an upper section which passes longitudinally through said support, the upper section being slidably mounted relative to said support and having an upper end connected to the lower end. a lift cable.
    It is therefore understood that the drilling module is suspended from the lift cable. The latter is preferably operated by means of a winch connected to a carrier. More preferably, the upper end of the upper section protrudes beyond the upper end of the support.
    Preferably, the support is a frame whose transverse dimensions, considered in a plane perpendicular to the longitudinal direction, are substantially equal to or less than the transverse dimensions of the drilling module, and the frame comprises an anchoring device capable of blocking the displacement. of the support with respect to the walls of the excavation.
    The anchoring device makes it possible in particular to block the vertical displacement of the drilling machine in the ground.
    Also, according to the invention, it is possible to immobilize the chassis in the ground while controlling the vertical displacement of the drilling module by means of the lifting cable. The hydraulic damping device absorbs vibrations that are not transmitted to the chassis.
    According to a second embodiment of the invention, the displacement device comprises at least one hydraulic cylinder which is arranged between the support and the drilling module, and the damping means comprise a spring member disposed between the support and the module. drilling. It is understood that the spring member is disposed parallel to the hydraulic cylinder. The spring member is preferably, but not necessarily coaxial with the jack. The spring member preferably comprises a spring.
    According to a third embodiment of the invention, the support comprises a mast; the cutting members are located at the lower end of a bar of the drilling module, and the displacement device comprises a carriage mounted to the mast slidably in the longitudinal direction of the mast, the carriage cooperating with said bar to move the bar with the drilling module in the longitudinal direction of the mast.
    The bar, traditionally called Kelly, and the mast are substantially parallel and extend in a substantially vertical direction. It is understood that the displacement of the carriage has the effect of moving the drilling module relative to the support.
    In a particularly advantageous manner, the carriage comprises the damping means.
    Also, thanks to the invention, the vibrations generated by the drilling module are not transmitted to the mast or the carrier vehicle that supports it.
    According to an advantageous variant, the carriage comprises a first part slidably mounted on the mast and a second part cooperating with the bar, and the damping means are arranged between the first and second parts of the carriage.
    The first and second parts are preferably slidably mounted relative to each other in the longitudinal direction of the mast.
    Preferably, the damping means comprise a spring member disposed between the first and second parts of the carriage. The spring member is preferably composed of a damper with a coaxial spring. According to an alternative, the damping means comprise a hydraulic damping device of the same type as that mentioned above.
    Advantageously, in combination with one or other of the embodiments described above, the drilling module further comprises an anti-sway device to prevent a horizontal movement of the drilling module during the drilling.
    Advantageously, the anti-swaying device comprises deployable pads disposed on the lateral edges of the drilling module and configured to abut against at least one of the walls of the excavation.
    An interest is to prevent the waddling of the drilling module, which prevents the drilling trajectory deviates from the desired path, as well as unnecessary movements of the cutting members.
    Advantageously, the drilling machine further comprises a device for regulating the damping coefficient of the damping means. An interest is to be able to adapt the damping means to the nature of the ground and the thrust exerted on the cutting members.
    Advantageously, said drilling machine is a milling cutter whose cutting members comprise two pairs of drums which are rotatable about parallel axes of rotation, distinct and perpendicular to the longitudinal direction of the support.
    BRIEF DESCRIPTION OF THE DRAWINGS The invention will be better understood on reading the following description of embodiments of the invention given as non-limiting examples, with reference to the appended drawings, in which: FIG. first embodiment of the drilling machine according to the invention wherein the displacement device comprises hydraulic cylinders; FIG. 2 illustrates an example of the damping means of the displacement device of FIG. 1; FIGS. 3A and 3B illustrate a second embodiment of the invention in which the damping means comprise springs disposed between the chassis and the drilling module; and FIGS. 4A and 4B illustrate a third embodiment of the invention in which the displacement device comprises a carriage slidably mounted on a mast.
    Detailed description of the invention
    In Figure 1 there is illustrated a first embodiment of the drilling machine 10 according to the present invention. This drilling machine 10 is used to perform an excavation E in a soil S in a drilling direction F which is substantially vertical.
    The drilling machine 10 comprises a support 12 having a longitudinal direction L which is substantially vertical in this example. The drilling machine 10 further comprises a drilling module 14 equipped with cutting members 16. In this example, the drilling machine 10 is a cutter whose cutting members 16 comprises two pairs of drums 18, 20 provided with teeth. 22, the two pairs of drums 18, 20 being respectively rotatably mounted about axes of rotation A, B which are parallel, distinct and perpendicular to the longitudinal direction L of the support 12.
    The drilling module 14 comprises a lower section 24 which carries the cutting members 16, and in particular the drums 18, 20. The lower section 24 further comprises a pumping module 26 which has the function of sucking the soil fragments excavated to evacuate them on the surface.
    The drilling module 14 further comprises an anti-sway device 30 for preventing a horizontal movement of the drilling module 14 during drilling. This anti-swaying device comprises deployable pads 32, 34 which are arranged on the lateral edges 24a, 24b of the lower section 24 of the drilling module 14. These deployable pads are arranged to cooperate with walls of the excavation when are deployed horizontally. The deployable pads 32, 34 are actuated by jacks (not shown here) arranged in the lower section 24 of the drilling module 14.
    The drilling module 14 further comprises an upper section 40, which extends vertically above the lower section 24, the upper section 40 here having the shape of a bar which extends longitudinally through the support 12. In this example, the support 12 is a frame which comprises guide members 42 within which the upper section 40 is slidably mounted. It is therefore understood that the upper section 40 is slidably mounted relative to the frame 13 in a substantially vertical direction, as a result of which the drilling module 14 is movable in translation relative to the support 12.
    In this first embodiment, the drilling module is movable in translation relative to the support in the drilling direction F, which is substantially vertical.
    The upper section 40 of the drilling module 14 has an upper end 40a which protrudes beyond the upper end 12a of the support 12, this upper end 40a being connected to the lower end 50a of a lift cable 50. This levitation cable 50 is connected to the upper end of a carrier (not shown here) known elsewhere.
    The drilling machine 10 further comprises a displacement device 60 which is disposed between the support 12 and the drilling module 14, and whose function is to move the drilling module 14 relative to the support 12 in the longitudinal direction of the support . In other words, the displacement device moves the drilling module relative to the support in the drilling direction F, which is substantially vertical.
    In the first embodiment, the displacement device 60 comprises a pair of hydraulic cylinders 62, 64 which connect the support 12 to the lower section 24 of the drilling module 14. It is thus clear that the hydraulic cylinders 62, 64 are connected to the support 12 and the drilling module 14, so that their actuation makes it possible to move the drilling module vertically relative to the support 12.
    According to the invention, the displacement device 60 further comprises damping means 70 for damping the vibrations generated by the drilling module 14 during the drilling.
    FIG. 2 diagrammatically illustrates the drilling machine 10 according to the first embodiment of the invention, as well as the damping means 70. The latter comprise a hydraulic damping device 72 which is fluidly connected to the hydraulic cylinders 62, 64. In this example, the damping device comprises a spring accumulator 74 and the nozzle 77. During an impact suffered by the cutting members 16, the oil contained in the large chambers 62a, 64a hydraulic cylinders 62, 64 is compressed and flows to the spring accumulator 74, through the nozzle 77 which will dampen the rise in pressure of the oil, which allows the damping. The damping means 70 furthermore comprise a device 76 for regulating the coefficient of stiffness of the damping means and more specifically the stiffness of the spring accumulator 74. They also comprise means for regulating the leakage flow at through the nozzle 77 so as to regulate the damping coefficient of the damping means. Also, during an impact, the vibrations generated by the cutting members are not transmitted to the support 12.
    According to another aspect of the invention, the frame 13 comprises an anchoring device 80 which is able to block the displacement of the support 12 relative to the walls of the excavation. This anchoring device 80 comprises a plurality of deployable anchor pads referenced 82 which are configured to bear on the largest faces of the excavation to immobilize the support 12 in the excavation. With the aid of FIGS. 3A and 3B, a second embodiment of the drilling machine 110 according to the invention will now be described. The characteristics identical to those of the first embodiment bear the same numerical reference plus the value cent. The drilling machine 110 illustrated in FIG. 3A thus comprises a displacement device 160 which connects the support 112 to the drilling module 114. In this example, the drilling module 114 comprises a platform 115 which carries rotary drums 118, 120. The displacement device 160 comprises a pair of jacks 162, 164 which connect the lower end 112b of the support 112 to the platform 115. The actuation of the hydraulic jacks 162, 164 makes it possible to translate the drilling module 114 in translation relative to the support 112 according to the drilling direction F.
    In this second embodiment, the damping means 170, clearly visible in FIG. 3B, comprise the hydraulic cylinders 162, 164 as well as two damping members 163, 165 which are arranged between the support 112 and the drilling module. 114. In this example, the damping members 163, 165 comprise springs 167, 169 which surround the hydraulic cylinders 162, 164. The combination of the springs 167, 169 and the hydraulic cylinders 162, 164 thus constitutes the damping means which make it possible to damp the damping means whose function is to damp the vibrations generated by the drilling module 114 during the drilling, and consequently, to prevent the transmission of vibrations to the support 212. Without departing from the scope of the invention, the springs 167, 169 could be arranged beside the hydraulic cylinders 162, 164 without being coaxial . With the aid of FIGS. 4A and 4B, a third embodiment of the drilling machine 210 according to the present invention will now be described. Here again, the elements identical to those of the first embodiment carry the same numerical reference plus two hundred. In this third embodiment, the drilling machine 210 comprises a track carrier 211 which is fixed support 212, which here takes the form of a longitudinal mast which extends vertically.
    The cutting members 216 of the drilling module 214 are located at the lower end 213a of a longitudinal bar of the drilling module, traditionally called Kelly.
    The displacement device 260 is disposed between the mast 212 and the bar 213 of the drilling module 214, and its function is to move the drilling module 214 relative to the mast 212 in the longitudinal direction L of the mast. To do this, the displacement device 260 comprises a carriage 271, better visible in Figure 4B, which is mounted to the mast 212 slidably in the longitudinal direction L of the mast. The carriage 271 cooperates with the bar 213 to move the drilling module 214 in the longitudinal direction of the mast. In this example, the carriage 271 comprises a securing device for securing the bar 213 with said carriage 271 so that the displacement of the carriage 271 in the longitudinal direction L of the mast 212 causes the concomitant movement of the drilling module 214 in the direction drilling. The displacement of the carriage 271 upwards and downwards is ensured in this example by a displacement member 273 comprising cables 275 and 277 fixed on either side of the carriage 271.
    It is understood that the carriage 271 is moved towards the upper and lower ends of the mast 212 thanks to the traction exerted by the cables 275 and 277, which are actuated by one or more winches (not shown here) arranged on the carrier, such winches being well known elsewhere.
    The carriage 271 includes a first portion 281 which is fixed to the mast 212 in a sliding manner, this first portion 281 being connected to the end of the cable 275. The carriage 271 further comprises a second portion 283 which carries the bar 213 while being slidably mounted relative to the first portion of the carriage in the longitudinal direction of the bar 213.
    According to the invention, the displacement device 260 further comprises damping means 270 for damping the vibrations generated by the drilling module 214 during the drilling. These damping means 210 are arranged between the first and second parts 281, 283 of the carriage 271. It is thus clear that, in this second embodiment, it is the carriage 271 of the displacement device 260 which comprises the means of amortization 270.
    In this example, the damping means 270 constitute in this example a suspension which comprises one or more hydraulic dampers 262 connecting the first portion 281 to the second portion 283 of the carriage 271, these dampers being associated in parallel with the springs 263.
    It will be understood that, during drilling, the vibrations generated by the cutting members 216 are transmitted along the bar 213 to the second portion 283, and then absorbed by the damping means 270, so that the vibrations are not transmitted to the first part 281 or the mast 212. Without departing from the scope of the invention, the springs 263 could be arranged next to the dampers 262 without being coaxial.
    权利要求:
    Claims (14)
    [1" id="c-fr-0001]
    1. Drilling machine (10, 110, 210) for excavating in a soil (S) in a substantially vertical direction of drilling (F), said drilling machine (10, 110, 210) comprising: a support (12, 112, 212) having a longitudinal direction (L) ; a drilling module (14,114,214) provided with cutting members (16,116,216), the drilling module being movable in translation relative to the support (12,112,212) in the longitudinal direction (L) of the support; a displacement device (60,160,260) disposed between the support (12,112,212) and the drilling module (14,114,214) for moving the drilling module (14,114,214) relative to the support (12,112,212) in the longitudinal direction (L) of the support; characterized in that the displacement device (60,160,260) comprises damping means (70,170,270) for damping the vibrations generated by the drilling module (14,114,214) during the drilling.
    [2" id="c-fr-0002]
    The drilling machine according to claim 1, wherein the displacement device (60,260) comprises at least one hydraulic cylinder (62,64,262), connecting the support to the drilling module, and wherein the damping means comprise a device hydraulic damping device (72,272) fluidly connected to the hydraulic cylinder (62,64; 262).
    [3" id="c-fr-0003]
    A drilling machine according to any one of the preceding claims, wherein the drilling module (14) has a lower section (24) carrying the cutting members (16), and an upper section (40) extending longitudinally through said section support (12), the upper section (40) being slidably mounted relative to said support (12) and having an upper end (40a) connected to the lower end (50a) of a lift cable (50).
    [4" id="c-fr-0004]
    4. drilling machine (110) according to claim 3, wherein the support is a frame (13) whose transverse dimensions, considered in a plane perpendicular to the longitudinal direction, are substantially equal to or less than the transverse dimensions of the drilling module , and wherein said frame comprises an anchoring device (80) adapted to block the displacement of the frame (13) relative to the walls of the excavation.
    [5" id="c-fr-0005]
    The drilling machine (110) according to claim 1, wherein the displacement device comprises at least one hydraulic cylinder which is disposed between the support and the drilling module, and wherein the damping means (170) comprise a spring member disposed between the support (112) and the drilling module (114).
    [6" id="c-fr-0006]
    6. Drilling machine according to claim 5, wherein the spring member (163,165) comprises a spring (167,169).
    [7" id="c-fr-0007]
    The drilling machine (210) according to claim 1, wherein the support comprises a mast (212), wherein the cutting members are located at the lower end (213a) of a bar (213) of the module. drilling, and wherein the displacement device (260) comprises a carriage (271) mounted to the mast (212 slidingly in the longitudinal direction (L) of the mast (212), the carriage (271) cooperating with said bar (213); ) to move the drilling module (214) in the longitudinal direction of the mast.
    [8" id="c-fr-0008]
    8. Drilling machine according to claim 7, wherein the carriage (271) comprises the damping means (270).
    [9" id="c-fr-0009]
    The drilling machine (210) according to claim 8, wherein the carriage (271) has a first portion (281) slidably mounted to the mast (213) and a second portion (283) cooperating with the bar (213). and wherein the damping means (270) is disposed between the first and second portions (281, 283) of the carriage (271).
    [10" id="c-fr-0010]
    The drilling machine according to claim 9, wherein the damping means (270) comprises a hydraulic cylinder (262) coupled to a hydraulic damping device (272).
    [11" id="c-fr-0011]
    A drilling machine according to any one of the preceding claims, wherein the drilling module (14) further comprises an anti-sway device (30) for preventing horizontal movement of the drilling module (14) during the production of the drilling module (14). drilling.
    [12" id="c-fr-0012]
    The drilling machine according to claim 11, wherein the anti-swaying device (30) comprises deployable pads (32,34) disposed on the lateral edges (24a, 24b) of the drilling module and arranged to cooperate with walls. excavation.
    [13" id="c-fr-0013]
    13. Drilling machine according to any one of the preceding claims, characterized in that it further comprises a device (76) for regulating the damping coefficient of the damping means (70).
    [14" id="c-fr-0014]
    14. drilling machine (10,110,210) according to any one of the preceding claims, wherein said drilling machine (10,110,210) is a milling cutter whose cutting members (16,116,216) comprise two pairs of drums which are rotatable about axes of rotation (A, B) parallel, distinct and perpendicular to the longitudinal direction (L) of the support (12, 112, 212).
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    CN108495966B|2021-09-21|
    DE202016008569U1|2018-06-26|
    KR20180053330A|2018-05-21|
    JP6655170B2|2020-02-26|
    WO2017042496A1|2017-03-16|
    CA2998309A1|2017-03-16|
    FR3041023B1|2017-09-29|
    AU2016319498B2|2021-06-10|
    引用文献:
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    法律状态:
    2016-08-22| PLFP| Fee payment|Year of fee payment: 2 |
    2017-03-17| PLSC| Publication of the preliminary search report|Effective date: 20170317 |
    2017-08-22| PLFP| Fee payment|Year of fee payment: 3 |
    2018-08-22| PLFP| Fee payment|Year of fee payment: 4 |
    2019-08-20| PLFP| Fee payment|Year of fee payment: 5 |
    2020-08-19| PLFP| Fee payment|Year of fee payment: 6 |
    2021-08-19| PLFP| Fee payment|Year of fee payment: 7 |
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    PCT/FR2016/052247| WO2017042496A1|2015-09-10|2016-09-08|Drilling machine|
    US15/758,774| US10844570B2|2015-09-10|2016-09-08|Drilling machine|
    JP2018512860A| JP6655170B2|2015-09-10|2016-09-08|Drilling machine|
    KR1020187009812A| KR102337106B1|2015-09-10|2016-09-08|drilling machine|
    CA2998309A| CA2998309A1|2015-09-10|2016-09-08|Drilling machine|
    EP16767339.1A| EP3347525B1|2015-09-10|2016-09-08|Drilling machine|
    DE202016008569.8U| DE202016008569U1|2015-09-10|2016-09-08|drilling machine|
    AU2016319498A| AU2016319498B2|2015-09-10|2016-09-08|Drilling machine|
    SG11201801992QA| SG11201801992QA|2015-09-10|2016-09-08|Drilling machine|
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