Manual release sealing device of fully-sealed electromagnetic brake

Abstract

The manual release sealing device comprises a magnet yoke, an armature and an elastic assembly, the magnet yoke is provided with a containing cavity and multiple counter bores, the multiple counter bores are formed in the positions, corresponding to the containing cavity, of the magnet yoke, and the counter bores communicate with the containing cavity; the armature is arranged in the accommodating cavity, the armature is connected and limited through a bolt, and the bolt is located in the counter bore; the bolt is provided with a counter bore, the elastic assembly is arranged in the counter bore, the bolt is sleeved with the elastic assembly, the elastic assembly seals the counter bore, and the elastic assembly limits the bolt through the counter bore. And by arranging the elastic assembly, the armature of the electromagnetic brake can be released manually, and water leakage of the electromagnetic brake is avoided.

Description

Technical Field

[0001] The present application relates to the field of electromagnetic brake structures, and in particular to a manual release sealing device for a fully sealed electromagnetic brake. Background Art

[0002] With the rapid development of modern industrial technology, motors and their supporting equipment are increasingly used in industrial automation, rail transportation, power transmission and other fields. As an important part of the motor system, the performance of the electromagnetic brake directly affects the safety, stability and reliability of the entire motor system. As a key component of the electromagnetic brake, the design, material and performance of the armature have an important impact on the overall performance of the electromagnetic brake. Therefore, the research and innovation of the electromagnetic brake armature has important practical significance and application value.

[0003] Electromagnetic brake is a device that uses electromagnetic force for braking and is widely used in various motors and transmission systems. As the core component of electromagnetic brake, the armature mainly generates friction with the friction plate under the action of electromagnetic force, thereby achieving the braking effect. The performance of the armature directly affects the braking efficiency, stability and service life of the electromagnetic brake. Therefore, in-depth research on the design, material and performance of the armature is the key to improving the performance of the electromagnetic brake.

[0004] However, in the prior art, most of the fully sealed electromagnetic brakes do not have a manual release function, because installing a manual release device will easily cause water leakage.

[0005] Therefore, how to realize the manual release function of the armature is an important technical problem that needs to be solved urgently. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the utility model provides a manual release sealing device for a fully sealed electromagnetic brake. By providing an elastic component, the armature of the electromagnetic brake can be manually released to avoid water leakage of the electromagnetic brake.

[0007] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0008] The present application provides a manual release sealing device for a fully sealed electromagnetic brake, comprising:

[0009] A magnetic yoke, wherein the magnetic yoke is provided with a receiving cavity and a countersunk hole, wherein a plurality of the countersunk holes are provided, and the plurality of the countersunk holes are provided on the magnetic yoke at positions corresponding to the receiving cavity, and the countersunk holes are connected to the receiving cavity;

[0010] An armature is arranged in the accommodating cavity, the armature is connected and limited by bolts, and the bolts are located in the countersunk holes;

[0011] An elastic component is arranged in the countersunk hole, the elastic component is sleeved outside the bolt, the elastic component seals the countersunk hole, and the elastic component limits the bolt through the countersunk hole.

[0012] Optionally, in some embodiments of the present application, the elastic component includes:

[0013] A release gasket, wherein the release gasket is sleeved outside the bolt, and a portion of the release gasket is located in the countersunk hole so that the release gasket closes the countersunk hole;

[0014] A buffer ring is sleeved outside the bolt, the buffer ring is located in the countersunk hole, and the buffer ring is located on a side of the release gasket facing the armature;

[0015] A preload spring is sleeved outside the bolt, the preload spring is located at a side of the release washer away from the armature, and one end of the preload spring away from the release washer abuts against the bolt.

[0016] Optionally, in some embodiments of the present application, the release gasket is configured to be step-shaped, and the release gasket includes an embedded portion and an external portion, the embedded portion is located in the countersunk hole, the external portion is located outside the yoke, and a limiting groove is opened on a side of the external portion away from the yoke, and the preload spring is located in the limiting groove.

[0017] Optionally, in some embodiments of the present application, a first buffer groove is provided on the magnetic yoke, the first buffer groove is connected to the accommodating cavity, and a buffer spring is disposed in the first buffer groove.

[0018] Optionally, in some embodiments of the present application, when the buffer spring is in an extruded state, a length value of the buffer spring is greater than or equal to a depth value of the first buffer groove.

[0019] Optionally, in some embodiments of the present application, a support surface is formed on the yoke at a position corresponding to the accommodating cavity, a plurality of second buffer grooves are formed on the support surface, a buffer member is arranged in the second buffer groove, and the buffer member buffers the armature.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. In the embodiment of the present application, an elastic component is provided to manually adjust the position of the bolt, so that the bolt will move the armature in the direction toward or away from the friction plate, and the distance between the armature and the yoke can be adjusted. The bolt is not threadedly connected to the yoke, so that when the yoke is started, the distance between the armature and the yoke can be slightly controlled, which facilitates the action between the armature and the friction plate to achieve the braking process; the elastic component is sleeved on the bolt to adjust the bolt for buffering, so that when the yoke drives the armature, the elastic component can buffer the armature to a certain extent;

[0022] 2. A release gasket is provided in the present application, which seals the sink hole so that water cannot flow through the sink hole, thereby avoiding water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of the overall structure of a manual release sealing device for a fully sealed electromagnetic brake provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the explosion structure of the manual release sealing device of the fully sealed electromagnetic brake provided in an embodiment of the present application;

[0026] Figure 3 A schematic side cross-sectional view of the structure of a manual release sealing device for a fully sealed electromagnetic brake provided in an embodiment of the present application;

[0027] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0028] Figure 5 A schematic diagram of the overall structure of the release gasket provided in an embodiment of the present application.

[0029] Description of reference numerals:

[0030] 100, yoke; 110, accommodating cavity; 120, countersunk hole; 121, abutting surface; 130, first buffer groove; 131, buffer spring; 140, supporting surface; 141, second buffer groove; 142, buffer member; 200, armature; 300, elastic component; 310, release gasket; 311, embedded part; 312, external part; 313, limiting groove; 320, buffer ring; 330, preload spring; 400, bolt; 500, friction plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present application. It is understood that the drawings are only provided for reference and illustration, and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0032] Specifically, Figure 1-5 As shown, an embodiment of the present application provides a manual release sealing device for a fully sealed electromagnetic brake, which plays a vital role in the braking process of a car. To ensure the safety of its braking, a yoke 100, an armature 200 and a friction plate 500 are provided in the brake. Through the magnetic effect of the yoke 100, the armature 200 is adsorbed and pushed, so that the friction plate 500 is acted on to achieve a braking effect.

[0033] In the embodiment of the present application, in order to better reflect the braking effect, a receiving chamber 110 is opened on the yoke 100, and an armature 200 is installed in the receiving chamber 110. At the same time, in the present application, in order to facilitate the installation of the armature 200, a plurality of countersunk holes 120 are opened on the yoke 100, and the countersunk holes 120 are connected to the receiving chamber 110, and a supporting surface 140 is formed in the receiving chamber 110. The armature 200 can be placed on the supporting surface 140, and a corresponding bolt 400 is installed in the countersunk hole 120. One end of the bolt 400 is threadedly connected to the yoke 100, and the other end of the bolt 400 is threadedly connected to the armature 200. The specific connection method is: a threaded hole is opened on the armature 200 at a position corresponding to the bolt 400, and the end of the armature 200 is threadedly connected to the threaded hole.

[0034] Since the accommodating cavity 110 limits the armature 200 as a whole, when the bolt 400 rotates, the armature 200 moves up and down in the accommodating cavity 110, and the direction of the up and down movement is toward or away from the friction plate 500, and the friction plate 500 is arranged on the yoke 100, such as Figure 3 and Figure 4 As shown, the interaction relationship between the armature 200 and the friction plate 500 can be controlled by controlling the distance between the armature 200 and the yoke 100 to achieve the opening and closing of the brake.

[0035] In the embodiment of the present application, an elastic component 300 is arranged around the bolt 400 in the countersunk hole 120, and the elastic component 300 is sleeved outside the bolt 400 to limit the bolt 400, wherein the elastic component 300 includes a release gasket 310, a buffer ring 320 and a preload spring 330, wherein the release gasket 310 is arranged at the opening of the countersunk hole 120, and the release gasket 310 closes the countersunk hole 120, and the main closing process is: the release gasket 310 includes an embedded portion 311 and an external portion 312, and the embedded portion 311 and the external portion 312 are combined into a step shape, such as Figure 4 and Figure 5 As shown, the embedded portion 311 is completely in contact with the inner wall of the counterbore 120, and the external portion 312 is connected to the embedded portion 311. To facilitate the installation of the release gasket 310, the embedded portion 311 is completely located in the counterbore 120, and the external portion 312 is located outside the yoke 100, so that a person can operate the release gasket 310 through the external portion 312. A buffer ring 320 and a preload spring 330 are respectively arranged on both sides of the release gasket 310. The buffer ring 320 is located at the release gasket 310 facing the armature 200. position, and is located in the countersunk hole 120. In the embodiment of the present application, the buffer ring 320 is provided with two circles in the countersunk hole 120. To facilitate the installation of the buffer ring 320 in the countersunk hole 120, an abutment surface 121 is provided in the countersunk hole 120. The buffer ring 320 is located on the abutment surface 121, but the other side of the buffer ring 320 abuts against the embedded portion 311. Through the setting of the buffer ring 320, the release gasket 310 can be abutted, so that the release gasket 310 moves in the direction away from the armature 200.

[0036] In the embodiment of the present application, a limiting groove 313 is provided at one end of the release gasket 310 in a direction away from the armature 200, and a pre-tightening spring 330 is arranged in the limiting groove 313. The pre-tightening spring 330 is sleeved outside the bolt 400. In order to realize the pre-tightening function of the pre-tightening spring 330, the pre-tightening spring 330 abuts against the bolt 400.

[0037] In the embodiment of the present application, the preload spring 330 is configured as a pagoda-shaped structure, which has the characteristics of small size and large load. It can be widely used in occasions with small space and large load and shock absorbing devices, and has greater pressure resistance.

[0038] It can be known from the above structure that the armature 200 can be acted upon by the cooperation between the release gasket 310 and the preload spring 330, and the action process is as follows:

[0039] The position of the bolt 400 is manually adjusted so that the bolt 400 moves the armature 200 in the direction toward or away from the friction plate 500, thereby adjusting the distance between the armature 200 and the yoke 100. The bolt 400 is not threadedly connected to the yoke 100, so that when the yoke 100 is started, the distance between the armature 200 and the yoke 100 can be slightly controlled to facilitate the interaction between the armature 200 and the friction plate 500 to achieve the braking process.

[0040] The elastic component 300 is sleeved on the bolt 400 to adjust the bolt 400 for buffering, so that when the yoke 100 drives the armature 200, the elastic component 300 can buffer the armature 200 to a certain extent.

[0041] In the embodiment of the present application, a first buffer groove 130 is also provided. The first buffer groove 130 is provided on the yoke 100, specifically on a support surface 140 on the yoke 100 in a direction toward the accommodating cavity 110. A buffer spring 131 is also provided in the first buffer groove 130. When the buffer spring 131 is in an extruded state, a length value of the buffer spring 131 is greater than or equal to a depth value of the first buffer groove 130. This length can always squeeze the armature 200, thereby providing a buffering effect on the armature 200.

[0042] Among them, second buffer grooves 141 are also arranged on the support surface 140 of the yoke 100. The second buffer grooves 141 are evenly arranged on the support surface 140. In the embodiment of the present application, three second buffer grooves 141 are arranged, and buffer members 142 are arranged in the three second buffer grooves 141.

[0043] In the embodiment of the present application, the buffer member 142 is a small buffer ring 320, and the height of the small buffer ring 320 is higher than the second buffer groove 141, so that when the armature 200 moves toward the support surface 140, the armature 200 cannot directly contact the support surface 140 due to the resistance of the small buffer ring 320.

[0044] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A manual release sealing device for a fully sealed electromagnetic brake, characterized in that: include: A magnetic yoke, wherein the magnetic yoke is provided with a receiving cavity and a countersunk hole, wherein a plurality of the countersunk holes are provided, and the plurality of the countersunk holes are provided on the magnetic yoke at positions corresponding to the receiving cavity, and the countersunk holes are connected to the receiving cavity; An armature is arranged in the accommodating cavity, the armature is connected and limited by bolts, and the bolts are located in the countersunk hole; An elastic component is arranged in the countersunk hole, the elastic component is sleeved outside the bolt, the elastic component seals the countersunk hole, and the elastic component limits the bolt through the countersunk hole.

2. The manual release sealing device of the fully sealed electromagnetic brake according to claim 1, characterized in that: The elastic component comprises: A release gasket, wherein the release gasket is sleeved outside the bolt, and a portion of the release gasket is located in the countersunk hole so that the release gasket closes the countersunk hole; A buffer ring is sleeved outside the bolt, the buffer ring is located in the countersunk hole, and the buffer ring is located on a side of the release gasket facing the armature; A preload spring is sleeved outside the bolt, the preload spring is located at a side of the release washer away from the armature, and one end of the preload spring away from the release washer abuts against the bolt.

3. The manual release sealing device of the fully sealed electromagnetic brake according to claim 2, characterized in that: The release gasket is arranged in a step shape, and the release gasket includes an embedded portion and an external portion, the embedded portion is located in the countersunk hole, the external portion is located outside the yoke, and a limiting groove is provided on a side of the external portion away from the yoke, and the preload spring is located in the limiting groove.

4. The manual release sealing device of the fully sealed electromagnetic brake according to claim 1, characterized in that: The magnetic yoke is provided with a first buffer groove, the first buffer groove is connected to the accommodating cavity, and a buffer spring is arranged in the first buffer groove.

5. The manual release sealing device of the fully sealed electromagnetic brake according to claim 4, characterized in that: When the buffer spring is in a squeezed state, a length of the buffer spring is greater than or equal to a depth of the first buffer groove.

6. The manual release sealing device of the fully sealed electromagnetic brake according to claim 5, characterized in that: A support surface is formed on the yoke at a position corresponding to the accommodating cavity, a plurality of second buffer grooves are provided on the support surface, and buffer members are arranged in the second buffer grooves, and the buffer members buffer the armature.

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