• 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:
    Electromagnetic disk brake (1), of those with a ferromagnetic support (3), with one or more windings (4) with an electromagnetic shaft (5) of each winding (4), and with expansion springs (7) and guide rods (8) associated with one or more displaceable plates (6) close to a brake disk (9) with a general mechanical axis (2) of the electromagnetic disk brake (1), of those employed in elevators or similar, in which the transverse winding (4a) is placed in the ferromagnetic support (3), with its electromagnetic axis (5a) of the transverse winding (4a) substantially transverse to the mechanical axis (2) of the electromagnetic disk brake (1)) and surrounding said ferromagnetic support (3). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2705777A1
    申请号:ES201731148
    申请日:2017-09-26
    公开日:2019-03-26
    发明作者:Fernández Carlos Gil
    申请人:Alzola Elizondo Luis；
    IPC主号:
    专利说明:

    [0001]
    [0002] DISC ELECTROMAGNETIC BRAKE
    [0003]
    [0004] This invention concerns an electromagnetic disk brake, of those with a ferromagnetic support, with one or more windings with an electromagnetic axis of each winding, and with expansion springs and guide rods associated with one or more adjacent displaceable plates to a brake disc with a mechanical axis of the electromagnetic disc brake, of employees in elevators or similar.
    [0005]
    [0006] At present and as a reference to the state of the art, it is known to use electromagnetic disc brakes for use in elevators or the like.
    [0007] The existing brakes use a winding that is housed in a recess made on the ferromagnetic support and with its electromagnetic axis of the winding coinciding or parallel to the mechanical axis of the electromagnetic disk brake. With this embodiment, with the emptying carried out in the ferromagnetic support, a lot of ferromagnetic surface useful for the use of the magnetic field necessary to attract the displaceable plates that press the brake disc is lost. It is also necessary that during the manufacturing the winding is carried out in another independent process and then it is introduced into the casting of the ferromagnetic support.
    [0008] In other embodiments it is necessary to use two or more windings to have two independent braking circuits to provide greater safety in case one fails. In this type of embodiments the windings are also encapsulated and adjacent laterally in at least one recess in the ferromagnetic support and also with their electromagnetic winding axes parallel to the mechanical axis of the electromagnetic disc brake. This produces a similar loss of ferromagnetic surface, there being to minimize it realizations with recesses for the winding in the form of kidney or oval.
    [0009] However, in this type of embodiments there is still a loss of ferromagnetic surface due to emptying for the winding which, added to that of the springs and the guides, makes the attraction of the displaceable plates by the ferromagnetic support less effective.
    [0010]
    [0011] Faced with this state of affairs, the present invention deals with an electromagnetic disc brake, of those with a ferromagnetic support, with one or more windings with an electromagnetic axis of the winding, and with some expansion springs and associated guide rods to one or more displaceable plates next to a brake disk with a mechanical axis of the electromagnetic disc brake, of the employees in elevators or the like, in which the transverse winding is placed in the ferromagnetic support, with its electromagnetic axis of the transverse winding substantially transverse to the mechanical axis of the electromagnetic disc brake and surrounding said ferromagnetic support.
    [0012] Thanks to this configuration, a more powerful electromagnetic disc brake is achieved for the same size of ferromagnetic support. This is achieved since the emptying of the ferromagnetic support is avoided by having a larger ferromagnetic surface, since the transverse winding is placed around said ferromagnetic support without the need of loss of surface due to the emptying for the housing of the winding. In this way for the same magnetic field generated the ferromagnetic surface used is between 20-25% higher than in previous embodiments in which the axes general and electromagnetic mechanics are parallel, important advantage since we speak of brakes that need to have small dimensions for the needs of the installation. Obtaining also in laboratory analysis results of a greater coercive force to attract the displaceable plates, therefore greater efficiency is achieved by a greater use of the ferromagnetic surface, achieving greater coercive force for the attraction of the displaceable plates.
    [0013] In this way, manufacturing times are reduced with a simpler machining for the coil housing than in the case of previous embodiments, avoiding another machining process and thus reducing manufacturing costs.
    [0014] Another feature of the invention is that several transverse windings can be arranged in the same electromagnetic disk brake, so that their electromagnetic axes are substantially coaxial. Whereby the magnetic fields thus generated allow to obtain equal or greater coercive force results than in previous embodiments of electromagnetic disk brakes for the same size of a conventional brake. Thus connecting in series the transverse windings associated with each displaceable plate and connecting in parallel the groups of transverse windings associated with both displaceable plates, an increase is obtained both in the magnetic saturation and in the homogeneity of said saturation in the whole of the surface. Since the force is linearly proportional to the saturated area but exponentially proportional to the magnetic field, an optimum compromise is achieved in reducing the active area at the expense of increasing the saturation of said area.
    [0015] According to the invention, to locate the transverse winding in the ferromagnetic support, there is at least one surrounding transverse groove, in this way the winding of the winding is facilitated during the manufacturing process, preventing the transverse winding from detaching and in this way the shrinkage of ferromagnetic support material are very small.
    [0016] Another particularity of the invention is that the ferromagnetic support has a circular shape, thus adapting to the standards of the brake discs of the elevator engines.
    [0017] Another feature of the invention is that it is provided that the ferromagnetic support has a rectangular shape with the correspondingly displaceable plates.
    [0018] Thanks to this characteristic the use of the ferromagnetic surface by the magnetic field is greater and achieves a greater coercive force for approaching the displaceable plates.
    [0019] Another feature of the invention is that it is provided that the coils of the transverse winding are carried out directly on the ferromagnetic support.
    [0020] In this way, winding on the same ferromagnetic support avoids, as in previous embodiments, the winding in an independent process, which in some embodiments winding the winding is more difficult, using winding forms to take advantage of the winding. ferromagnetic surface such as kidney or oval, being necessary to use molds to avoid losing the configuration of the winding. Therefore, with the realization of the winding in the ferromagnetic support a process is suppressed, thus facilitating the winding of the coil. In this way, the additional process of independent winding and its subsequent transfer to the casting of the ferromagnetic support is eliminated and the winding of the transverse winding, even of several transverse windings simultaneously, can be carried out in the same ferromagnetic support. All this translates into a reduction of times in the manufacturing process due to the simplicity and the suppression of independent winding processes of the coil, which reduces manufacturing costs.
    [0021] Finally another characteristic of the invention is that it is provided that between the transverse winding and the ferromagnetic support there are interposed two separate insulating supports.
    [0022] Thanks to this feature, winding of the winding during the manufacturing process is facilitated and the winding is protected and isolated to prevent malfunctioning.
    [0023]
    [0024] To better understand the nature of the invention, an industrial embodiment is shown in the accompanying drawings. which is merely an illustrative and non-limiting example.
    [0025] Figure 1 represents an exploded isometric view of the electromagnetic disc brake (1) with the general mechanical axis (2) and the electromagnetic axis (5a) and the angle (12) between them with thicker stroke and with the transverse windings (4a) ) in bold for your best distinction and understanding.
    [0026] Figure 2 shows an exploded view of an electromagnetic disc brake (1) according to the state of the art with the axes (5) of the coil (4) in thicker stroke.
    [0027] Figure 3 shows an elevation view of the rear part of the disk electromagnetic brake (1), with Figure 4 being the cross section A-A and Figure 5 being the section B-B.
    [0028] Figure 6 represents an exploded isometric view of the disk electromagnetic brake (1) for an alternative embodiment of the ferromagnetic support (3) of rectangular shape with several windings.
    [0029] Figures 7, 8 and 9 show the assembly sequence of transverse winding (4a) on the ferromagnetic support (3), with figure 7 being the insertion phase of the resistant insulating supports (11), figure 8 the winding phase of the reel where the arrows indicate the rotation of the support for winding the transverse winding (4a), and where the yarn of the transverse winding (4a) is represented by a line; and in figure 9 the transverse winding (4a) already assembled on the ferromagnetic support (3) is visualized
    [0030] In these figures the following references are indicated: 1.- Electromagnetic disk brake
    [0031] 2.- General mechanical axis of the electromagnetic disk brake (1).
    [0032] 3.- Ferromagnetic support
    [0033] 4. Winding
    [0034] 4a.- Transverse winding
    [0035] 5.- Electromagnetic axis of the transverse winding (4a) 6.- Movable plates
    [0036] 7.- Expansion springs
    [0037] 8.- Guiding rods
    [0038] 9.- Brake disc
    [0039] 10.- Surrounding grooving surrounding
    [0040] 11.- Resistant insulating supports
    [0041] 12.- Angle of the electromagnetic axis (5a) EXHIBITION OF A PREFERRED EMBODIMENT
    [0042] With reference to the drawings and references listed above, a preferred embodiment of the object of the invention, which concerns an electromagnetic disc brake (1), of those with a ferromagnetic support (3), is illustrated in the attached drawings. with one or more windings (4) with an electromagnetic axis (5) of each winding (4), and with expansion springs (7) and guiding rods (8) associated with one or more next displaceable plates (6) to a brake disc (9) with a general mechanical shaft (2) of the electromagnetic disc brake (1), of the employees in elevators or the like, in which the transverse winding (4a) is placed in the ferromagnetic support (3) ), with its electromagnetic axis (5a) of the transverse winding (4a) substantially transverse to the mechanical axis (2) of the electromagnetic disk brake (1) and surrounding said ferromagnetic support (3).
    [0043] In figure (1) it is observed how the direction of the electromagnetic flow represented by the electromagnetic axis (5a) of the transverse winding (4a) is substantially transverse with respect to the general mechanical axis (2), thus emptying necessary to accommodate the Transverse windings (4a) in the ferromagnetic support (3) is less than in previous embodiments. This can be seen in figure (2) where one can see how in an embodiment with the coil (4) in the form of a kidney it is tried to maximize the ferromagnetic surface but surface is lost by the recess to encapsulate said winding (4). In this way, with this invention, greater efficiency so that the ferromagnetic support (3) overcomes the force of the springs (7) and attracts the displaceable plates (6) so that they do not press the brake disc (9) and when the transverse windings (4a) are activated, deactivate the situation of braking of the electromagnetic disk brake (1).
    [0044] In figures 3, 4 and 5 we can better see the configuration of the surrounding transverse groove, where it can be seen that the machining necessary to accommodate the transverse winding (4a) is very simple and saves time and manufacturing costs.
    [0045] In another embodiment it is provided that the ferromagnetic support (3) instead of a circular shape has a rectangular shape, as can be seen in figure 6. In this way it is linked to the advantages provided by the housing of the transverse winding (4a) transversely to the support ferromagnetic (3), the greater use of the magnetic field is added to achieve a greater coercive force without altering the overall dimensions of the disk electromagnetic brake (1), which also can be seen in Figure 6 with the arrangement of more transverse windings (4a) the coercive force is increased, achieving a more effective brake for the same useful surface. In addition, with the use of two transverse windings (4a) associated with each displaceable plate (6) a central region, free of transverse winding (4a) is obtained, where mechanical active elements can be placed (springs, moorings to the manual unlocking levers) so that its action is more evenly applied on the displaceable plate (6). Thus, in this embodiment of Figure 6 each pair of transverse windings (4a) associated with each displaceable plate (6) is connected in series and both pairs together in parallel. In this way, an increase is obtained both in the magnetic saturation and in the homogeneity of said saturation in the whole of the surface. Since the force is linearly proportional to the saturated area but exponentially proportional to the field magnetic, an optimum compromise is achieved in reducing the active area at the expense of increasing the saturation of said area.
    [0046] As a further advantage of the invention, it is possible to mention the greater simplicity in the manufacture that as can be seen in figure 7, initially insulating resistant supports (11) are introduced which could be replaced by the application of resistant resins or resistant housings for the isolation and protection of the transverse windings (4a). Subsequently, thanks to the configuration of the surrounding transverse groove (10) during manufacturing, the independent winding of the winding (4) is eliminated and carried out in the same support, which as seen in figure 8 with the simple rotation of the ferromagnetic support (3) ) allows the winding of both transverse windings (4a), obtaining the final product of Figure 9 for its subsequent coupling to the other components of the disk electromagnetic brake (1). In this way, savings in time and manufacturing costs are achieved.
    [0047] The essentiality of this invention does not alter variations in materials, shape, size and arrangement of the component elements, described in a non-limiting manner, this being sufficient to proceed to its reproduction by an expert.
    权利要求:
    Claims (1)
    [0001]
    R E I V I N D I C A C I O N S
    1st.- Electromagnetic disc brake (1), of those with a ferromagnetic support (3), with one or more windings (4) with an electromagnetic axis (5) of each winding (4), and with expansion springs (7) and guide rods (8) associated with one or more displaceable plates (6) close to a brake disc (9) with a general mechanical axis (2) of the electromagnetic disk brake (1), of employees in elevators or the like characterized in that the transverse winding (4a) is placed in the ferromagnetic support (3), with its electromagnetic axis (5a) of the transverse winding (4a) substantially transverse to the mechanical axis (2) of the electromagnetic disc brake ( 1) and surrounding said ferromagnetic support (3).
    2.- Electromagnetic disc brake (1) according to claim 1, characterized in that there are several transverse windings (4a) in the same electromagnetic disk brake (1), their electromagnetic axes (5a) are substantially coaxial.
    3.- Electromagnetic disk brake (1) according to the preceding claims, characterized in that at least one transverse groove (10) exists in the ferromagnetic support (3).
    4th.- Electromagnetic disk brake (1) according to the preceding claims, characterized in that the ferromagnetic support (3) has a circular shape.
    5th.- Electromagnetic disk brake (1) according to the preceding claims, characterized in that it is provided that the ferromagnetic support (3) has a rectangular shape with the displaceable plates (6) correspondingly.
    6.- Electromagnetic disc brake (1) according to the preceding claims, characterized in that it is provided that the coils of the transverse winding (4a) are made directly on the ferromagnetic support (3).
    7.- Electromagnetic disk brake (1) according to the preceding claims, characterized in that it is provided that between the transverse winding (4a) and the ferromagnetic support (3) there are interposed two separate insulating supports (11).
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    同族专利:
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    ES2705777B2|2020-03-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3605958A|1970-01-21|1971-09-20|Stearns Electric Corp|Spring-applied,electrically-released brake|
    ES2238428T3|2000-02-11|2005-09-01|CHR. MAYR GMBH & CO. KG|ELECTROMAGNETIC BRAKE INTEGRATED IN A DRIVING PULLEY.|
    ES2330675T3|2005-05-18|2009-12-14|CHR. MAYR GMBH & CO. KG|SEGMENT BRAKE.|
    ES2332480T3|2006-04-07|2010-02-05|CHR. MAYR GMBH & CO. KG|SPRING PRESSURE BRAKE WITH ELECTROMAGNETIC LOOSE, WITH THE CONFORMATION OF A TWO-CIRCUIT QUADRANGULAR BRAKE.|
    ES2338854A1|2008-11-11|2010-05-12|Luis Alzola Elizondo|Electric brake for lifts|
    US20150053514A1|2012-05-04|2015-02-26|Chr. Mayr Gmbh & Co. Kg|Compact control device for failsafely controlling an electrical actuator|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201731148A|ES2705777B2|2017-09-26|2017-09-26|Electromagnetic disc brake|ES201731148A| ES2705777B2|2017-09-26|2017-09-26|Electromagnetic disc brake|
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