Brake shoe clamping mechanism for brake shoe drilling

Abstract

The utility model discloses a brake shoe clamping mechanism for brake shoe drilling, and relates to the technical field of brake shoe clamping. The clamping device comprises a fixing plate, a clamping assembly is arranged on the fixing plate, and the clamping assembly comprises two sliding blocks arranged in the fixing plate in a sliding fit mode, a supporting frame arranged on one side of each sliding block, a limiting block arranged in the fixing plate in a sliding fit mode and a two-way threaded rod arranged in the limiting block in a rotating fit mode. The limiting block is driven by rotating the threaded rod to move in the direction between the two sliding blocks, meanwhile, the two-way threaded rod in the limiting block moves along with the limiting block, and after the limiting block and the two sliding blocks are kept horizontal, the two-way threaded rod is in threaded fit with the first C-shaped threads on the inner wall; and then the two-way threaded rod is rotated to drive the two sliding blocks to slide relatively, the upper supporting frame on one side of the two sliding blocks moves in the direction of the brake shoe and is attached to the brake shoe, and therefore the deviation situation occurring when the brake shoe is clamped is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of brake shoe clamping, specifically, it relates to a brake shoe clamping mechanism for drilling brake shoes. Background Technology

[0002] Brake shoes are the friction components of drum brakes. In addition to having the strength and rigidity required for a component, they should also have the highest and most stable coefficient of friction, as well as appropriate wear resistance, heat resistance, heat dissipation and heat capacity. Brake shoes are classified as leading shoes and trailing shoes according to whether their rotation direction when they open is consistent with the rotation direction of the brake drum.

[0003] Chinese Patent No. CN217666626U discloses a brake shoe clamping mechanism for drilling brake shoes, relating to the field of brake shoe manufacturing technology. Specifically, it is a brake shoe clamping mechanism for drilling brake shoes, comprising a fixed plate, a fixed frame fixedly mounted on top of the fixed plate, a threaded column movably fitted inside the fixed frame, a support block connected to the inner cavity of the threaded column via a bearing, a support frame fixedly connected to the inner side of the support block, and a telescopic column fixedly fitted inside the inner cavity of the fixed plate. Two fixed frames are mounted on top of the fixed plate, and the threaded column is movably fitted inside the fixed frame, with the inner side of the threaded column connected to the support block via a bearing. Simultaneously, fixed sleeves are connected to the left and right ends of the fixed plate via support plates and support springs. During use, the cooperation between the fixed frame and the threaded column ensures the stability of the support block, while the cooperation between the support spring and the fixed sleeve facilitates the stability of the threaded column and prevents its rotation.

[0004] In practical use, the existing technology involves placing the brake shoe on the telescopic column, then pressing the fixing sleeve downwards to disengage it from the threaded column, and then rotating the threaded column to move the support frame on one side of the support block toward the brake shoe. The other threaded column is rotated in the same way. However, this method is inconvenient and causes the brake shoe to easily shift when clamping it, requiring constant adjustments. Therefore, a brake shoe clamping mechanism for drilling brake shoes is needed.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a brake shoe clamping mechanism for drilling brake shoes.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A brake shoe clamping mechanism for drilling brake shoes includes a fixed plate, a telescopic rod mounted on the fixed plate, and a clamping assembly provided on the fixed plate.

[0009] The clamping assembly includes two sliding blocks that are slidably fitted inside the fixed plate, a support frame installed on one side of the sliding blocks, a limiting block that is slidably fitted inside the fixed plate, a bidirectional threaded rod that is rotatably fitted inside the limiting block, a threaded rod that is rotatably fitted on one side of the limiting block, an arc-shaped groove opened on one side of the sliding blocks, and a first C-shaped thread installed inside the arc-shaped groove. The bidirectional threaded rod is threadedly fitted with the first C-shaped thread.

[0010] Optionally, two first sliding grooves are provided on one side of the fixed plate, and the sliding block is slidably fitted in the first sliding groove. A reset member is installed between the inner wall of the first sliding groove and the sliding block.

[0011] Optionally, a second slide groove is provided on both sides of the inner wall of the first slide groove, and the bidirectional threaded rod is slidably engaged in the second slide groove. A threaded groove is provided on one side of the inner wall of the first slide groove, and the threaded rod is threadedly engaged in the threaded groove.

[0012] Optionally, a third slide groove is provided on one side of the inner wall of the first slide groove. The third slide groove is connected to the second slide groove. The limiting block is slidably fitted in the third slide groove. A first through groove is provided on one side of the limiting block. The bidirectional threaded rod is rotatably fitted in the first through groove.

[0013] Optionally, C-shaped blocks are installed on both sides of the limiting block. The C-shaped blocks slide with the arc-shaped groove. A second C-shaped thread is installed on one side of the inner wall of the C-shaped block. The second C-shaped thread is threaded with the bidirectional threaded rod and the second C-shaped thread is threaded with the first C-shaped thread.

[0014] Optionally, an auxiliary disk is installed at one end of the threaded rod, and the auxiliary disk is located outside the fixed plate. A second through groove is opened on one side of the auxiliary disk, and a rotating rod is rotatably and slidably fitted inside the second through groove.

[0015] Optionally, a locking block is installed at one end of the rotating rod, and a groove is provided on one side of the fixing plate, so that the rotating rod can rotate and fit into the groove.

[0016] Optionally, an annular groove is provided at the bottom of the inner wall of the groove, which cooperates with the locking block. A square sliding groove is provided on one side of the inner wall of the annular groove, and the locking block slides in cooperation with the square sliding groove.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0018] By placing the brake shoe on the telescopic rod, and then rotating the threaded rod to move the limiting block towards the direction between the two sliding blocks, the bidirectional threaded rod inside the limiting block moves accordingly. When the limiting block and the two sliding blocks are level, the bidirectional threaded rod is located inside and engages with the first C-shaped thread on one side of the inner wall. Then, rotating the bidirectional threaded rod causes the two sliding blocks to slide relative to each other, so that the support frame on one side moves towards the brake shoe and fits against it. This avoids deviation when clamping the brake shoe and realizes and improves the processing efficiency of the brake shoe.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0021] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the clamping component structure according to an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the auxiliary disk structure according to an embodiment of the present utility model;

[0025] The attached diagram lists the components represented by each number as follows:

[0026] Fixed plate 1, telescopic rod 2, support frame 3, sliding block 4, auxiliary plate 5, bidirectional threaded rod 6, reset component 7, arc-shaped groove 8, first C-shaped thread 9, limiting block 10, first through groove 11, C-shaped block 12, second C-shaped thread 13, threaded rod 14, first sliding groove 15, third sliding groove 16, second sliding groove 17, threaded groove 18, second through groove 19, rotating rod 21, locking block 22, groove 23, annular locking groove 24, square sliding groove 25.

[0027] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] Please see Figure 1-4As shown, this embodiment provides a brake shoe clamping mechanism for drilling brake shoes, including a fixed plate 1, a telescopic rod 2 mounted on the fixed plate 1, and a clamping assembly provided on the fixed plate 1;

[0030] The clamping assembly includes two sliding blocks 4 that are slidably fitted inside the fixed plate 1, a support frame 3 installed on one side of the sliding blocks 4, a limiting block 10 that is slidably fitted inside the fixed plate 1, a bidirectional threaded rod 6 that is rotatably fitted inside the limiting block 10, a threaded rod 14 that is rotatably fitted on one side of the limiting block 10, an arc-shaped groove 8 opened on one side of the sliding blocks 4, and a first C-shaped thread 9 installed inside the arc-shaped groove 8. The bidirectional threaded rod 6 is threadedly fitted with the first C-shaped thread 9.

[0031] One application of this embodiment is as follows: When it is necessary to clamp the brake shoe, the brake shoe is placed on the telescopic rod 2, and then the threaded rod 14 is rotated to drive the limiting block 10 to slide, so that it drives the bidirectional threaded rod 6 to move towards the first C-shaped thread 9 on the inner wall of the arc-shaped groove 8 on one side of the sliding block 4, so that the limiting block 10 and the two sliding blocks 4 are in a horizontal position. At the same time, the thread on the bidirectional threaded rod 6 is threadedly engaged with the first C-shaped thread 9 on the inner wall of the arc-shaped groove 8. Then, rotating the bidirectional threaded rod 6 drives the support frame 3 on one side of the two sliding blocks 4 to move relative to each other, so that it fits against the brake shoe, which facilitates clamping the brake shoe, thereby avoiding the offset when clamping the brake shoe and realizing and improving the processing efficiency of the brake shoe.

[0032] In this embodiment, the fixing plate 1 has two first sliding grooves 15 on one side. The sliding block 4 is slidably engaged in the first sliding groove 15. A reset member 7 is installed between the inner wall of the first sliding groove 15 and the sliding block 4. The inner walls of the first sliding groove 15 have second sliding grooves 17 on both sides. The bidirectional threaded rod 6 is slidably engaged in the second sliding groove 17. The inner wall of the first sliding groove 15 has a threaded groove 18 on one side. The threaded rod 14 is threadedly engaged in the threaded groove 18. The inner wall of the first sliding groove 15 has a third sliding groove 16 on one side. The third sliding groove 16 is connected to the second sliding groove 17. The limiting block 10 is slidably engaged in the third sliding groove 16. The limiting block 10 has a first through groove 11 on one side. The bidirectional threaded rod 6 is rotatably engaged in the first through groove 11.

[0033] The operator rotates the rotating rod 21 to drive the threaded rod 14 on one side of the auxiliary disk 5 to rotate threadedly in the threaded groove 18. This causes the limiting block 10 at its end to drive the C-shaped blocks 12 on both sides to move towards the sliding block 4. At the same time, the bidirectional threaded rod 6 moves with the limiting block 10 and moves along the second sliding groove 17, which makes it easy for the bidirectional threaded rod 6 to stably engage with the first C-shaped thread 9 on the inner wall of the arc groove 8 on the sliding block 4. This facilitates the control of the relative movement of the support frame 3 on one side of the two sliding blocks 4. At the same time, the reset piece 7 is stretched. The reset piece 7 can be any one of elastic rope, spring, or flexible sheet. When it is necessary to replace the brake shoe, the above operation can be reversed. At the same time, the reset piece 7 retracts due to elasticity, which allows the support frame 3 to quickly release the brake shoe, thus facilitating the replacement of the brake shoe and realizing and improving the drilling efficiency of the brake shoe.

[0034] In this embodiment, the limiting block 10 is provided with C-shaped blocks 12 on both sides. The C-shaped blocks 12 slide with the arc-shaped groove 8. A second C-shaped thread 13 is provided on one side of the inner wall of the C-shaped block 12. The second C-shaped thread 13 is threaded with the bidirectional threaded rod 6. The second C-shaped thread 13 is engaged with the first C-shaped thread 9.

[0035] The sliding of the limiting block 10 causes the C-shaped blocks 12 on both sides to slide, so that they slide into the arc-shaped groove 8 on the sliding block 4. At the same time, the second C-shaped thread 13 on one side of the inner wall of the C-shaped block 12 will coincide with the first C-shaped thread 9 on one side of the inner wall of the arc-shaped groove 8. Thus, the engagement of the second C-shaped thread 13 and the first C-shaped thread 9 can be threaded with the bidirectional threaded rod 6, so that the rotation of the bidirectional threaded rod 6 can drive the two sliding blocks 4 to move relative to each other.

[0036] In this embodiment, an auxiliary disk 5 is installed at one end of the threaded rod 14, and the auxiliary disk 5 is located outside the fixed plate 1. A second through groove 19 is opened on one side of the auxiliary disk 5. A rotating rod 21 is rotatably and slidably fitted inside the second through groove 19. A locking block 22 is installed at one end of the rotating rod 21. A groove 23 is opened on one side of the fixed plate 1. The rotating rod 21 is rotatably fitted inside the groove 23. An annular locking groove 24 is opened at the bottom of the inner wall of the groove 23. The annular locking groove 24 is fitted with the locking block 22. A square sliding groove 25 is opened on one side of the inner wall of the annular locking groove 24. The locking block 22 is slidably fitted with the square sliding groove 25.

[0037] After the bidirectional threaded rod 6 inside the limiting block 10 is threaded into the first C-shaped thread 9 on one side of the inner wall of the arc-shaped groove 8, the operator pushes the rotating rod 21 inward, causing the locking block 22 on it to move away from the auxiliary disk 5 and slide into the groove 23. The locking block 22 needs to be aligned with the square slide groove 25 on one side of the inner wall of the annular groove 24. Then, it slides into the square slide groove 25 along the sliding of the rotating rod 21. Then, the rotating rod 21 rotates, causing the locking block 22 on the rotating rod 21 to rotate in the annular groove 24, so that it is offset from the square slide groove 25. This makes it easier to fix the threaded rod 14, thus preventing the vibration generated when drilling the brake shoe from causing the support frame 3 to reset. When it is necessary to release the fixing of the threaded rod 14, the above reverse operation can be performed to release the fixing of the threaded rod 14.

[0038] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A brake shoe clamping mechanism for a brake shoe bore, characterized by, The utility model relates to a fixing plate (1) is equipped with telescopic rod (2) on the fixing plate (1), and the fixing plate (1) is provided with clamping assembly. The clamping assembly includes two sliding blocks (4) slidingly fitted inside the fixing plate (1), a support frame (3) mounted on one side of the sliding block (4), a limiting block (10) slidingly fitted inside the fixing plate (1), a two-way threaded rod (6) rotationally fitted inside the limiting block (10), a threaded rod (14) rotationally fitted on one side of the limiting block (10), an arc-shaped groove (8) opened on one side of the sliding block (4), and a first C-shaped thread (9) mounted inside the arc-shaped groove (8), and the two-way threaded rod (6) is threadedly engaged with the first C-shaped thread (9). A first sliding groove (15) is opened on one side of the fixing plate (1), the sliding block (4) is slidingly fitted in the first sliding groove (15), and a reset member (7) is mounted between the inner wall of the first sliding groove (15) and the sliding block (4) on one side.

2. A brake shoe clamping mechanism for drilling brake shoes according to claim 1, characterized in that Second sliding grooves (17) are opened on both sides of the inner wall of the first sliding groove (15), the two-way threaded rod (6) is slidingly fitted in the second sliding groove (17), a threaded groove (18) is opened on one side of the inner wall of the first sliding groove (15), and the threaded rod (14) is threadedly engaged in the threaded groove (18).

3. A brake shoe clamping mechanism for drilling brake shoes according to claim 2, characterized in that A third sliding groove (16) is opened on one side of the inner wall of the first sliding groove (15), the third sliding groove (16) is in communication with the second sliding groove (17), the limiting block (10) is slidingly fitted in the third sliding groove (16), and a first through groove (11) is opened on one side of the limiting block (10), the two-way threaded rod (6) is rotationally fitted in the first through groove (11).

4. A brake shoe clamping mechanism for brake shoe drilling according to claim 3, wherein C-shaped blocks (12) are mounted on both sides of the limiting block (10), the C-shaped blocks (12) are slidingly fitted with the arc-shaped groove (8), a second C-shaped thread (13) is mounted on one side of the inner wall of the C-shaped block (12), the second C-shaped thread (13) is threadedly engaged with the two-way threaded rod (6), and the second C-shaped thread (13) cooperates with the first C-shaped thread (9).

5. The brake shoe clamping mechanism for drilling brake shoes according to claim 1, characterized in that, An auxiliary disc (5) is mounted at one end of the threaded rod (14), the auxiliary disc (5) is located outside the fixing plate (1), a second through groove (19) is opened on one side of the auxiliary disc (5), and a rotating rod (21) is rotationally and slidingly fitted in the second through groove (19).

6. A brake shoe clamping mechanism for brake shoe drilling according to claim 1, wherein A clamping block (22) is mounted at one end of the rotating rod (21), a groove (23) is opened on one side of the fixing plate (1), and the rotating rod (21) is rotationally fitted in the groove (23).

7. A brake shoe clamping mechanism for a brake shoe drilled according to claim 6, characterized in that An annular clamping groove (24) is opened at the bottom of the inner wall of the groove (23), the annular clamping groove (24) cooperates with the clamping block (22), a square sliding groove (25) is opened on one side of the inner wall of the annular clamping groove (24), and the clamping block (22) is slidingly fitted with the square sliding groove (25).

8. A brake shoe clamping mechanism for a brake shoe drilled according to claim 7, characterized in that ​

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