Automatic follow-up device for brake and brake

Abstract

The brake comprises a base, a pushing mechanism, a first brake arm and a second brake arm, the first brake arm and the second brake arm are respectively hinged to the base, and the pushing mechanism is used for driving the first brake arm and the second brake arm to reversely swing respectively based on hinge points of the base. The automatic position following device is characterized in that the automatic position following device comprises a first supporting piece, a second supporting piece, a third supporting piece and a fourth supporting piece, and the first supporting piece is arranged on the braking piece of the first braking arm; the second supporting piece is arranged on the brake piece of the second brake arm; the first guide piece is arranged on the first supporting piece and penetrates through the second supporting piece in the direction parallel to the braking direction of the braking piece, or the first guide piece is arranged on the second supporting piece and penetrates through the first supporting piece in the direction parallel to the braking direction of the braking piece. The two braking pieces are parallel to the braking direction during moving and are in surface contact when making contact with a braking target, and the edge positions are prevented from being greatly stressed and abraded.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, in particular to an automatic position following device for brakes. In addition, the utility model also relates to a brake comprising the automatic position following device for brakes. Background Art

[0002] refer to Figure 1 , which is a typical structure of the transmission part of the brake in the prior art. The brake arm and the shoe are hinged. During the swinging process of the brake arm, the hinge point moves in an arc, and the horizontal position and height position will change. Therefore, the shoe tracking device of the brake generally adopts bolt locking or setting elastic pins, etc., and cannot be completely restricted to linear motion. For example, the brake disclosed in Patent Nos. 202010457971.4 and 202010457972.9, when the brake is in the open state, the brake pad and the braking target are not parallel to each other, but the two brake pads are in an eight-shaped state, thereby causing floating contact with the braking target. When braking, the edge of the brake pad will also contact the braking target meridian and then turn into surface contact with the braking surface, accelerating the wear of the edge of the brake pad, affecting the braking effect of the brake, and easily causing safety accidents. Utility Model Content

[0003] The utility model provides an automatic position following device for a brake and a brake, so as to solve the technical problems of the shoe block and the brake in the prior art.

[0004] According to one aspect of the utility model, an automatic position-following device for a brake is provided, the brake comprises a base, a pushing mechanism, a first brake arm and a second brake arm, the first brake arm and the second brake arm are respectively hinged to the base, the pushing mechanism is used to drive the first brake arm and the second brake arm to swing in opposite directions based on the hinge point on the base, the first brake arm and the second brake arm are respectively hinged with symmetrically arranged brake parts, the automatic position-following device comprises:

[0005] a first support member, disposed on the brake member of the first brake arm;

[0006] a second support member, disposed on the brake member of the second brake arm;

[0007] The first guide member is arranged on the first support member and passes through the second support member in parallel with the braking direction of the brake member, or is arranged on the second support member and passes through the first support member in parallel with the braking direction of the brake member.

[0008] As a further improvement of the above technical solution, a sliding structure is provided at a position of the first supporting member corresponding to the first guiding member, or a sliding structure is provided at a position of the second supporting member corresponding to the first guiding member.

[0009] As a further improvement of the above technical solution, the sliding structure is a sliding groove or a sliding bearing.

[0010] As a further improvement of the above technical solution, the slide groove is a waist-shaped groove.

[0011] As a further improvement of the above technical solution, the first guide member is arranged on the first support member, the second guide member is arranged on the second support member, the sliding structure on the first support member is arranged at a first height position and / or a first horizontal position, and the sliding structure on the second support member is arranged at a second height position and / or a second horizontal position.

[0012] According to another aspect of the utility model, a brake is also provided, which includes the above-mentioned automatic following device for the brake.

[0013] As a further improvement of the above technical solution, the brake member includes a connecting member, a shoe and a friction plate. The first end of the connecting member is hinged to the first brake arm or to the second brake arm, the second end of the connecting member is connected to the middle of the connecting surface of the shoe, and the friction plate is arranged on the braking surface of the shoe. The shape of the shoe and the shape of the friction plate match the shape of the braking target.

[0014] As a further improvement of the above technical solution, the first support member is arranged on the connecting member or on the tile.

[0015] As a further improvement of the above technical solution, the first end of the first brake arm is hinged to the first end of the pushing mechanism, the first end of the second brake arm is hinged to the second end of the pushing mechanism, the brake includes a base, the two ends of the base are respectively hinged to the second end of the first brake arm and the second end of the second brake arm, and the brake member is respectively hinged to the middle part of the first brake arm and the middle part of the second brake arm.

[0016] As a further improvement of the above technical solution, the first end of the first brake arm is hinged to the first end of the pushing mechanism, the first end of the second brake arm is hinged to the second end of the pushing mechanism, the brake includes a base, the two ends of the base are respectively hinged to the middle part of the first brake arm and the middle part of the second brake arm, and the brake member is respectively hinged to the second end of the first brake arm and the second end of the second brake arm.

[0017] The utility model has the following beneficial effects:

[0018] When the pushing mechanism extends or retracts, it pushes the first brake arm and the second brake arm to swing in opposite directions based on the hinge point on the base, thereby driving the brake member to clamp the brake target for braking or move away from the brake target to release the brake. During the movement of the brake member, the first guide member connected to the first support member or the second support member is passed through the other opposite support member, and its layout direction is parallel to the braking direction of the brake member, thereby adjusting the movement of the brake member so that the two brake members always remain parallel to the braking direction when moving, so that the brake member is in surface contact when contacting the brake target, or the brake surface is directly detached when disengaging from the brake, thereby avoiding the action mode under the original structure that causes the brake member to be in point contact or line contact with the brake target, causing the edge of the brake member to be greatly stressed and worn, effectively increasing the service life of the brake member and the brake, and improving safety performance.

[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 It is a partial structural schematic diagram of a brake in the prior art;

[0022] Figure 2 It is a structural schematic diagram of a preferred embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of the braking state of the brake of the utility model, in which the braking target is the brake wheel;

[0024] Figure 4 This is a schematic diagram of the brake opening state of the utility model, in which the braking target is the brake wheel;

[0025] Figure 5 It is a schematic diagram of the braking state of the brake of the utility model, in which the braking target is a brake disc;

[0026] Figure 6 It is a schematic diagram of the brake opening state of the utility model, in which the braking target is a brake disc;

[0027] Legend:

[0028] 1. base 2. pushing mechanism 3. first brake arm 4. second brake arm 5. first support member 6. second support member 7. first guide member 8. second guide member 9. sliding structure 10. connecting member 11. tile 12. friction plate 13. brake wheel 14. brake disc. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0030] Figure 2 It is a structural schematic diagram of a preferred embodiment of the utility model; Figure 3 It is a schematic diagram of the braking state of the brake of the utility model, in which the braking target is the brake wheel; Figure 4 This is a schematic diagram of the brake opening state of the utility model, in which the braking target is the brake wheel; Figure 5 It is a schematic diagram of the braking state of the brake of the utility model, in which the braking target is a brake disc; Figure 6 It is a schematic diagram of the brake opening state of the utility model, in which the braking target is a brake disc;

[0031] like Figures 2 to 6 As shown, the automatic following device for the brake of this embodiment, the brake includes a base 1, a pushing mechanism 2, a first brake arm 3 and a second brake arm 4, the first brake arm 3 and the second brake arm 4 are respectively hinged to the base 1, the pushing mechanism 2 is used to drive the first brake arm 3 and the second brake arm 4 to swing in opposite directions based on the hinge point on the base 1, and the first brake arm 3 and the second brake arm 4 are respectively hinged with symmetrically arranged brake parts. The first brake arm 3 and the second brake arm 4 of this preferred embodiment are respectively hinged at both ends of the pushing mechanism. In some embodiments, such as the appendix to the specification in Patent No.: 202010457972.9 Figure 6 The brake structure shown may also be that the output end of the pushing mechanism simultaneously pushes the first brake arm 3 and the second brake arm 4 to swing in the opposite direction through the transmission structure; based on this, in other embodiments, the specific transmission structure and connection relationship between the pushing mechanism and the brake arm may not be limited;

[0032] The automatic following device includes:

[0033] A first support member 5 is disposed on the brake member of the first brake arm 3;

[0034] A second support member 6 is disposed on the brake member of the second brake arm 4;

[0035] The first guide member 7 is arranged on the first support member 5 and penetrates the second support member 6 in parallel with the braking direction of the brake member, or is arranged on the second support member 6 and penetrates the first support member 5 in parallel with the braking direction of the brake member.

[0036] The driving mechanism 2 is hydraulically driven or electrically driven, and is implemented with reference to the driving mechanism 2 of the prior art, and no limitation is imposed on its specific structure.

[0037] The working principle of this device is as follows: when the pushing mechanism 2 extends or retracts, it pushes the first brake arm 3 and the second brake arm 4 to swing in opposite directions based on the hinge point on the base 1, thereby driving the brake member to clamp the brake target for braking or move away from the brake target to release the brake. During the movement of the brake member, the first guide member 7 connected to the first support member 5 or the second support member 6 is inserted into the other opposite support member, and its layout direction is parallel to the braking direction of the brake member, thereby adjusting the movement of the brake member so that the two brake members always remain parallel to the braking direction during movement, thereby making the brake member in surface contact when contacting the brake target, or directly separating from the brake surface when disengaging from the brake, thereby avoiding the action mode under the original structure that causes the brake member to be in point contact or line contact with the brake target, causing the edge of the brake member to be greatly stressed and worn, effectively increasing the service life of the brake member and the brake, and improving safety performance.

[0038] In one embodiment, the first support member 5 is provided with a sliding structure 9 at a position corresponding to the first guide member 7, or the second support member 6 is provided with a sliding structure 9 at a position corresponding to the first guide member 7, that is, when the first guide member 7 is provided on the first support member 5, a sliding structure 9 is provided at a corresponding position on the relative second support member 6 to cooperate with the first support member 5, so that the movement is smooth and the position is effectively limited; the same is true when the first guide member 7 is provided on the second support member 6; in other embodiments, more guide members may also be provided;

[0039] The sliding structure 9 is a slide groove or a sliding bearing, which can be selectively set according to actual needs;

[0040] In a specific embodiment, the sliding groove of the sliding structure 9 is set as a waist-shaped groove, and the length direction of the waist-shaped groove matches the movement direction of the braking target when the brake member is in the braking position; during the braking process, the brake member brakes the braking target, and the brake member moves relative to the braking target. By setting matching waist-shaped grooves, each guide member has a certain moving space along the force direction during braking, avoiding structural interference, failure, and breakage during relative movement, thereby ensuring structural stability and safety.

[0041] In one embodiment, the first guide member 7 is arranged on the first support member 5, the second guide member 8 is arranged on the second support member 6, the second guide member 8 is arranged on the first support member 5 in parallel with the braking direction of the brake member, the sliding structure 9 on the first support member 5 is arranged at a first height position and / or a first horizontal position, and the sliding structure 9 on the second support member 6 is arranged at a second height position and / or a second horizontal position. Specifically, the first guide member 7 and the second guide member 8 are arranged on the first support member 5 and the second support member 6, respectively. The double limit makes the limit of the automatic following device more stable and the action more stable; the positions of the two are staggered to avoid interference;

[0042] On the other hand, this embodiment provides a brake, which is applied with the above-mentioned automatic position following device for the brake.

[0043] Specifically, the brake component also includes a connecting member 10, a shoe 11 and a friction plate 12. The first end of the connecting member 10 is hinged to the first brake arm 3 or to the second brake arm 4, and the second end of the connecting member 10 is connected to the middle of the connecting surface of the shoe 11. The friction plate 12 is arranged on the braking surface of the shoe 11. The shape of the shoe 11 and the shape of the friction plate 12 match the shape of the braking target. In a specific embodiment, the braking target can be a brake wheel 13 or a brake disc 14, and the shape of the shoe 11 is an arc matching the brake wheel 13 or a flat plate matching the brake disc 14; the friction plate 12 can be detachably connected to the braking surface of the shoe 11 and contact the braking target surface for friction braking, and can be disassembled and replaced after its service life.

[0044] Among them, the first support member 5 is arranged on the connecting member 10 or on the pad 11. When the braking target is the brake wheel 13, the pad 11 is an arc-shaped member. At this time, the first support member 5 can be arranged on the connecting member 10 or on the pad 11. If the braking target is the brake disc 14 and the pad 11 is a flat plate structure, the first support member 5 is arranged on the connecting member 10, and the second support member 6 is the same.

[0045] In this embodiment, the first end of the first brake arm 3 is hinged to the first end of the pushing mechanism 2, and the first end of the second brake arm 4 is hinged to the second end of the pushing mechanism 2. The brake includes a base 1, and the two ends of the base 1 are respectively hinged to the middle of the first brake arm 3 and the middle of the second brake arm 4, and the brake member is respectively hinged to the second end of the first brake arm 3 and the second end of the second brake arm 4.

[0046] In one embodiment, the first end of the first brake arm 3 may be hinged to the first end of the pushing mechanism 2, the first end of the second brake arm 4 may be hinged to the second end of the pushing mechanism 2, the brake includes a base 1, the two ends of the base 1 are respectively hinged to the second end of the first brake arm 3 and the second end of the second brake arm 4, and the brake parts are respectively hinged to the middle of the first brake arm 3 and the middle of the second brake arm 4.

[0047] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic positioning device for a brake, the brake comprising a base (1), a pushing mechanism (2), a first brake arm (3) and a second brake arm (4), the first brake arm (3) and the second brake arm (4) being respectively hinged to the base (1), the pushing mechanism (2) being used to drive the first brake arm (3) and the second brake arm (4) to swing in opposite directions based on hinge points on the base (1), the first brake arm (3) and the second brake arm (4) being respectively hinged with symmetrically arranged brake parts, characterized in that: The automatic following device comprises: A first support member (5) is arranged on the brake member of the first brake arm (3); A second support member (6) is arranged on the brake member of the second brake arm (4); A first guide member (7) is arranged on the first support member (5) and passes through the second support member (6) in parallel with the braking direction of the braking member, or is arranged on the second support member (6) and passes through the first support member (5) in parallel with the braking direction of the braking member.

2. The automatic position following device for a brake according to claim 1, characterized in that: A sliding structure (9) is provided at a position of the first supporting member (5) corresponding to the first guiding member (7), or a sliding structure (9) is provided at a position of the second supporting member (6) corresponding to the first guiding member (7).

3. The automatic position following device for a brake according to claim 2, characterized in that: The sliding structure (9) is a sliding groove or a sliding bearing.

4. The automatic position following device for a brake according to claim 3, characterized in that: The slide groove is a waist-shaped groove.

5. The automatic position following device for a brake according to claim 2, characterized in that: The first guide member (7) is arranged on the first support member (5), the second guide member (8) is arranged on the second support member (6), the sliding structure (9) on the first support member (5) is arranged at a first height position and / or a first horizontal position, and the sliding structure (9) on the second support member (6) is arranged at a second height position and / or a second horizontal position.

6. A brake, characterized in that: The automatic positioning device for a brake according to any one of claims 1 to 5 is used.

7. The brake according to claim 6, characterized in that The brake component comprises a connecting component (10), a shoe (11) and a friction plate (12); the first end of the connecting component (10) is hinged to the first brake arm (3) or the second brake arm (4); the second end of the connecting component (10) is connected to the middle of the connecting surface of the shoe (11); the friction plate (12) is arranged on the braking surface of the shoe (11); the shapes of the shoe (11) and the friction plate (12) match the shape of the braking target.

8. The brake according to claim 7, characterized in that The first supporting member (5) is arranged on the connecting member (10) or on the tile (11).

9. The brake according to claim 6, characterized in that The first end of the first brake arm (3) is hinged to the first end of the pushing mechanism (2), and the first end of the second brake arm (4) is hinged to the second end of the pushing mechanism (2). The brake comprises a base (1), and the two ends of the base (1) are respectively hinged to the second end of the first brake arm (3) and the second end of the second brake arm (4). The brake member is respectively hinged to the middle part of the first brake arm (3) and the middle part of the second brake arm (4).

10. The brake according to claim 6, characterized in that The first end of the first brake arm (3) is hinged to the first end of the pushing mechanism (2), and the first end of the second brake arm (4) is hinged to the second end of the pushing mechanism (2). The brake comprises a base (1), and the two ends of the base (1) are respectively hinged to the middle part of the first brake arm (3) and the middle part of the second brake arm (4), and the brake member is respectively hinged to the second end of the first brake arm (3) and the second end of the second brake arm (4).

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