Anti-deformation brake drum clamp

Abstract

The invention discloses an anti-deformation brake drum clamp, and relates to the technical field of brake drums, the anti-deformation brake drum clamp comprises a brake drum body and a bottom plate, the brake drum body is fixedly connected with the bottom plate, the upper part of the bottom plate is fixedly connected with supporting columns, and the supporting columns are jointly provided with an anti-deformation assembly; when the first arch-shaped brake plate and the second arch-shaped brake plate get close to the brake drum body again, the first movable plate and the second movable plate can support the first arch-shaped brake plate and the second arch-shaped brake plate, the two ends of the U-shaped spring support the opposite sides of the first arch-shaped brake plate and the second arch-shaped brake plate, and a driving clamp assembly is arranged on the bottom plate. The first transverse plates move to pull the stretching plates to move, the stretching plates move to drive the second transverse plates to do circular motion, and the circular motion of the two sets of second transverse plates can drive the arch-shaped driving plates to push the first arch-shaped brake plates and the second arch-shaped brake plates to move towards the side close to the brake drum body.

Description

Technical Field

[0001] The present invention relates to the technical field of brake drums, and particularly to a brake drum fixture that prevents deformation. Background Art

[0002] The quality and performance of brake drums are directly related to the reliability and safety of the vehicle braking system. High-quality brake drums have good heat dissipation performance, can effectively dissipate heat during frequent braking, and prevent brake failure caused by overheating. If the quality of the brake drum is poor, problems such as cracks and deformation may occur, resulting in an extended braking distance, brake deviation, and even the inability to stop in time in an emergency, seriously threatening the lives and safety of the driver and passengers.

[0003] The bow-shaped brake plate of traditional brake drum fixtures is prone to deformation under the action of a strong clamping force, resulting in inaccurate and unstable clamping, affecting the positioning accuracy and quality of the brake drum. Moreover, the deformed brake plate is not easy to apply force evenly, causing local force imbalance of the brake drum and increasing the risk of deformation. The power transmission between the clamping components often relies on a single mechanical connection. For brake drums of different shapes and sizes, a single mechanical connection may not easily achieve accurate and efficient clamping operations. Therefore, it is necessary to propose a brake drum fixture that prevents deformation. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages in the prior art that the bow-shaped brake plate of traditional brake drum fixtures is prone to deformation under the action of a strong clamping force, and the deformed brake plate is not easy to apply force evenly, causing local force imbalance of the brake drum and increasing the risk of deformation. The power transmission between the clamping components often relies on a single mechanical connection. For brake drums of different shapes and sizes, a single mechanical connection may not easily achieve accurate and efficient clamping operations, and to propose a brake drum fixture that prevents deformation.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A brake drum fixture that prevents deformation, comprising a brake drum body and a bottom plate. The brake drum body and the bottom plate are fixedly connected. A support column is fixedly connected to the upper part of the bottom plate. An anti-deformation component is jointly arranged on the support column. The anti-deformation component includes a first movable plate and a second movable plate movably connected to the support column, a first arcuate brake plate and a second arcuate brake plate movably connected to the first movable plate and the second movable plate, and a U-shaped spring fixedly connected between the first arcuate brake plate and the second arcuate brake plate. When the first arcuate brake plate and the second arcuate brake plate approach the brake drum body, the first movable plate and the second movable plate will support the first arcuate brake plate and the second arcuate brake plate. The two ends of the U-shaped spring support the opposite sides of the first arcuate brake plate and the second arcuate brake plate. The first movable plate, the second movable plate and the U-shaped spring will prevent the first arcuate brake plate and the second arcuate brake plate from deforming. A driving fixture component is arranged on the bottom plate. The driving fixture component includes a T-shaped plate fixedly connected to the bottom plate, a first cross plate and a stretching plate movably connected to the T-shaped plate, and a second cross plate and an arcuate driving plate arranged on the upper part of the T-shaped plate. The movement of the first cross plate will pull the stretching plate to move. The movement of the stretching plate will drive the second cross plate to make a circular motion. The circular motion of the two groups of second cross plates will drive the arcuate driving plate to push the first arcuate brake plate and the second arcuate brake plate to move towards the side close to the brake drum body.

[0007] The above technical solution further includes:

[0008] The outer side of the support column and the first movable plate are movably connected. A first limiting shaft is movably connected to the end of the first movable plate far from the support column. The end of the first limiting shaft far from the first movable plate is fixedly connected to the first arcuate brake plate. The movement of the first limiting shaft can drive the first movable plate to move on the outer side of the support column.

[0009] The outer side of the support column and the second movable plate are movably connected. The end of the second movable plate far from the support column is movably connected to a second limiting shaft. The end of the second limiting shaft far from the second movable plate is fixedly connected to the second arcuate brake plate. The movement of the second limiting shaft can drive the second movable plate to move on the outer side of the support column.

[0010] First positioning shafts are symmetrically and fixedly connected to the upper part of the bottom plate. The two groups of first positioning shafts are respectively movably connected to the first arcuate brake plate and the second arcuate brake plate. The first positioning shaft can ensure that the movement track of the second arcuate brake plate remains unchanged.

[0011] A through hole is opened in the interior of the bottom plate. Connecting rods are symmetrically and fixedly connected to the upper part of the bottom plate. The ends of the two groups of connecting rods far from the bottom plate are jointly fixedly connected to the T-shaped plate. The function of the connecting rod is to connect the bottom plate and the T-shaped plate.

[0012] A sliding groove is provided on the outer side of the T-shaped plate, a micro motor is fixedly connected to the inner side of the sliding groove, the output shaft end of the micro motor is fixedly connected to the screw rod, the screw rod and the moving plate are threadedly connected, and the rotation of the screw rod will drive the moving plate to move horizontally along the sliding groove.

[0013] The upper part of the movable plate is fixedly connected to the first horizontal plate, and a movable rod is symmetrically fixedly connected to one end of the first horizontal plate away from the movable plate. An end of the movable rod away from the first horizontal plate is movably connected to the stretching plate, and the movement of the first horizontal plate will drive the two groups of first positioning axes on the upper part of the first horizontal plate to move along the sliding groove.

[0014] One end of the stretching plate away from the moving rod is movably connected to a fixing rod, and one end of the fixing rod away from the stretching plate is fixedly connected to the second cross plate. The movement of the stretching plate will pull the fixing rod to move.

[0015] One end of the second transverse plate away from the fixing rod is rotatably connected to the second positioning shaft, and one end of the second positioning shaft away from the second transverse plate is fixedly connected to the T-shaped plate. The rotation of the fixing rod drives the second transverse plate to make a circular motion along the second positioning shaft.

[0016] The outer side of the second horizontal plate is fixedly connected to the bow-shaped driving plate, and one end of the two groups of bow-shaped driving plates away from the second horizontal plate are respectively fixedly connected to the first bow-shaped brake plate and the second bow-shaped brake plate. A brake groove is opened on the inner side of the brake drum body, and the inner side of the brake groove is respectively adapted to the first bow-shaped brake plate and the second bow-shaped brake plate. When the bow-shaped driving plate is driven by the micro motor to make a circular motion along the second positioning axis, it will simultaneously drive the first bow-shaped brake plate and the second bow-shaped brake plate to move toward the brake groove opened on the inner side of the brake drum body.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the present invention, by setting an anti-deformation component, when the first bow-shaped brake plate and the second bow-shaped brake plate approach the brake drum body, the first movable plate and the second movable plate provide stable support, and the two ends of the U-shaped spring support the opposite sides of the two. This multi-level support structure can effectively prevent the first bow-shaped brake plate and the second bow-shaped brake plate from deforming, ensure that they act on the brake drum body in a stable and precise form, and ensure the accuracy and stability of the clamping of the brake drum by the clamp. The stable and unchanged brake plate shape can evenly apply the clamping force, so that the brake drum is evenly stressed and the risk of deformation caused by excessive or insufficient local force is reduced.

[0019] 2. In the present invention, by setting the driving fixture assembly and moving the first arcuate brake plate and the second arcuate brake plate, when the first cross plate moves, the stretching plate can be pulled, thereby driving the second cross plate to perform a circular motion. The coordinated actions of the two groups of second cross plates can push the arcuate driving plate, causing the first arcuate brake plate and the second arcuate brake plate to approach the brake drum body. This design makes the clamping action of the fixture coherent and can quickly complete the clamping of the brake drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is a schematic diagram of the overall structure of an anti-deformation brake drum fixture proposed by the present invention;

[0021] Figure 2 FIG. is a schematic diagram of the structure of the anti-deformation component in the present invention;

[0022] Figure 3 FIG. is a schematic diagram of the structure of the driving fixture assembly in the present invention;

[0023] Figure 4 FIG. is a partial side view structure diagram of the present invention;

[0024] Figure 5 is Figure 2 an enlarged schematic diagram of the structure at A in

[0025] Figure 6 is Figure 2 an enlarged schematic diagram of the structure at B in

[0026] In the figure: 1. Brake drum body; 2. Support column; 3. First movable plate; 4. First limit shaft; 5. First arcuate brake plate; 6. Second movable plate; 7. Second limit shaft; 8. Second arcuate brake plate; 9. First positioning shaft; 10. U-shaped spring; 11. Through hole; 12. Connecting rod; 13. T-shaped plate; 14. Sliding groove; 15. Micro motor; 16. Lead screw; 17. Moving plate; 18. First cross plate; 19. Moving rod; 20. Stretching plate; 21. Fixed rod; 22. Second cross plate; 23. Arcuate driving plate; 24. Second positioning shaft; 25. Brake groove; 26. Base plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1

[0029] As Figures 1 - 6As shown in the figure, a brake drum fixture for preventing deformation proposed by the present invention includes a brake drum body 1 and a bottom plate 26. The brake drum body 1 and the bottom plate 26 are fixedly connected. A support column 2 is fixedly connected to the upper part of the bottom plate 26. An anti-deformation component is provided on the support column 2. The anti-deformation component includes a first movable plate 3 and a second movable plate 6 movably connected to the support column 2, a first arcuate brake plate 5 and a second arcuate brake plate 8 movably connected to the first movable plate 3 and the second movable plate 6, and a U-shaped spring 10 fixedly connected between the first arcuate brake plate 5 and the second arcuate brake plate 8. When the first arcuate brake plate 5 and the second arcuate brake plate 8 approach the brake drum body 1, the first movable plate 3 and the second movable plate 6 will support the first arcuate brake plate 5 and the second arcuate brake plate 8. The two ends of the U-shaped spring 10 support the opposite sides of the first arcuate brake plate 5 and the second arcuate brake plate 8. The first movable plate 3, the second movable plate 6 and the U-shaped spring 10 will prevent the first arcuate brake plate 5 and the second arcuate brake plate 8 from deforming. A driving fixture component is provided on the bottom plate 26. The driving fixture component includes a T-shaped plate 13 fixedly connected to the bottom plate 26, a first cross plate 18 and a stretching plate 20 movably connected to the T-shaped plate 13, and a second cross plate 22 and an arcuate driving plate 23 provided on the upper part of the T-shaped plate 13. The movement of the first cross plate 18 will pull the stretching plate 20 to move. The movement of the stretching plate 20 will drive the second cross plate 22 to make a circular motion. The circular motions of the two groups of second cross plates 22 will drive the arcuate driving plate 23 to push the first arcuate brake plate 5 and the second arcuate brake plate 8 to move towards the side close to the brake drum body 1.

[0030] There is a movable connection between the outer side of the support column 2 and the first movable plate 3. One end of the first movable plate 3 away from the support column 2 is movably connected to a first limit shaft 4. One end of the first limit shaft 4 away from the first movable plate 3 is fixedly connected to the first arcuate brake plate 5. The movement of the first limit shaft 4 can drive the first movable plate 3 to move on the outer side of the support column 2.

[0031] There is a movable connection between the outer side of the support column 2 and the second movable plate 6. One end of the second movable plate 6 away from the support column 2 is movably connected to a second limit shaft 7. One end of the second limit shaft 7 away from the second movable plate 6 is fixedly connected to the second arcuate brake plate 8. The movement of the second limit shaft 7 can drive the second movable plate 6 to move on the outer side of the support column 2.

[0032] First positioning shafts 9 are symmetrically and fixedly connected to the upper part of the bottom plate 26. The two groups of first positioning shafts 9 are respectively movably connected to the first arcuate brake plate 5 and the second arcuate brake plate 8. The first positioning shaft 9 can ensure that the movement track of the second arcuate brake plate 8 remains unchanged.

[0033] In this embodiment, the specific implementation manner is that the driving of the arcuate driving plate 23 will drive the first arcuate brake plate 5 and the second arcuate brake plate 8 to move toward the side close to the brake drum body 1. Through the first arcuate brake plate 5 and the second arcuate brake plate 8, friction on the brake groove 25 can be formed. During this process, the first movable plate 3, the second movable plate 6 and the U-shaped spring 10 can prevent the first arcuate brake plate 5 and the second arcuate brake plate 8 from deforming. The specific implementation manner is that when the first arcuate brake plate 5 approaches the brake drum body 1 due to the action of the arcuate driving plate 23, the movement of the first arcuate brake plate 5 will drive the first limiting shaft 4 to move. The movement of the first limiting shaft 4 can drive the first movable plate 3 to move outside the support column 2. The function of the first movable plate 3 is to support the first limiting shaft 4, so as to prevent the first arcuate brake plate 5 from deforming. The function of the first positioning shaft 9 is to enable the first arcuate brake plate 5 to rotate around the first positioning shaft 9 during the movement. The first positioning shaft 9 can ensure that the rotation trajectory of the first arcuate brake plate 5 remains unchanged. The movement of the second arcuate brake plate 8 will drive the second limiting shaft 7 to move. The movement of the second limiting shaft 7 can drive the second movable plate 6 to move outside the support column 2. The function of the second movable plate 6 is to support the second limiting shaft 7, so as to prevent the second arcuate brake plate 8 from deforming. The first positioning shaft 9 can also ensure that the movement trajectory of the second arcuate brake plate 8 remains unchanged. The U-shaped spring 10 fixedly connected between the first arcuate brake plate 5 and the second arcuate brake plate 8 can ensure the relative stability between the first arcuate brake plate 5 and the second arcuate brake plate 8, and can also play a role in buffering the first arcuate brake plate 5 and the second arcuate brake plate 8. The first movable plate 3 and the second movable plate 6 will support the first arcuate brake plate 5 and the second arcuate brake plate 8. The two ends of the U-shaped spring 10 support the relative sides of the first arcuate brake plate 5 and the second arcuate brake plate 8. The first movable plate 3, the second movable plate 6 and the U-shaped spring 10 will prevent the first arcuate brake plate 5 and the second arcuate brake plate 8 from deforming.

[0034] Embodiment Two

[0035] As Figures 1 - 6 shown, based on Embodiment One, a through hole 11 is provided inside the bottom plate 26. Connecting rods 12 are symmetrically and fixedly connected to the upper part of the bottom plate 26. The two groups of connecting rods 12 are fixedly connected to the T-shaped plate 13 together at the ends away from the bottom plate 26. The function of the connecting rods 12 is to connect the bottom plate 26 and the T-shaped plate 13.

[0036] A sliding groove 14 is provided on the outside of the T-shaped plate 13. A micro motor 15 is fixedly connected to the inside of the sliding groove 14. The end of the output shaft of the micro motor 15 is fixedly connected to a lead screw 16. The lead screw 16 is threadedly connected to a moving plate 17. The rotation of the lead screw 16 will drive the moving plate 17 to move horizontally along the sliding groove 14.

[0037] The upper part of the moving plate 17 is fixedly connected to the first horizontal plate 18. At the end of the first horizontal plate 18 far from the moving plate 17, moving rods 19 are symmetrically and fixedly connected. The end of the moving rod 19 far from the first horizontal plate 18 is movably connected to the stretching plate 20. The movement of the first horizontal plate 18 will drive the two groups of first positioning shafts 9 on the upper part of the first horizontal plate 18 to move along the sliding groove 14.

[0038] The end of the stretching plate 20 far from the moving rod 19 is movably connected to a fixed rod 21. The end of the fixed rod 21 far from the stretching plate 20 is fixedly connected to the second horizontal plate 22. The movement of the stretching plate 20 will pull the fixed rod 21 to move.

[0039] The end of the second horizontal plate 22 far from the fixed rod 21 is rotatably connected to a second positioning shaft 24. The end of the second positioning shaft 24 far from the second horizontal plate 22 is fixedly connected to the T-shaped plate 13. The rotation of the fixed rod 21 will drive the second horizontal plate 22 to make a circular motion along the second positioning shaft 24.

[0040] The outer side of the second horizontal plate 22 is fixedly connected to the arc-shaped driving plate 23. The ends of the two groups of arc-shaped driving plates 23 far from the second horizontal plate 22 are respectively fixedly connected to the first arc-shaped brake plate 5 and the second arc-shaped brake plate 8. A brake groove 25 is formed on the inner side of the brake drum body 1. The inner side of the brake groove 25 is respectively adapted to the first arc-shaped brake plate 5 and the second arc-shaped brake plate 8. When the arc-shaped driving plate 23 makes a circular motion along the second positioning shaft 24 due to the drive of the micro motor 15, it will simultaneously drive the first arc-shaped brake plate 5 and the second arc-shaped brake plate 8 to move towards the brake groove 25 formed on the inner side of the brake drum body 1.

[0041] In this embodiment, the driving of the first arcuate brake plate 5 and the second arcuate brake plate 8 can be realized by starting the micro motor 15. The specific implementation method is as follows: when the micro motor 15 is started, the rotation of the end of the output shaft of the micro motor 15 will drive the lead screw 16 to rotate. The rotation of the lead screw 16 will drive the moving plate 17 to move horizontally along the sliding groove 14. The movement of the moving plate 17 will drive the first cross plate 18 to move. The movement of the first cross plate 18 will drive the two groups of first positioning shafts 9 on the upper part of the first cross plate 18 to move along the sliding groove 14. The movement of the moving rod 19 will drive the stretching plate 20 to move. The movement of the stretching plate 20 will pull the fixed rod 21 to move. The rotation of the fixed rod 21 will drive the second cross plate 22 to make a circular motion along the second positioning shaft 24. The circular motion of the second cross plate 22 will drive the arcuate driving plate 23 to make a circular motion. There are two groups of arcuate driving plates 23. When the arcuate driving plates 23 make a circular motion along the second positioning shaft 24 due to the driving of the micro motor 15, they will simultaneously drive the first arcuate brake plate 5 and the second arcuate brake plate 8 to move towards the brake groove 25 opened on the inner side of the brake drum body 1, so as to realize the contact between the first arcuate brake plate 5 and the second arcuate brake plate 8 and the brake groove 25. The function of the connecting rod 12 is to connect the bottom plate 26 and the T-shaped plate 13, and the connecting rod 12 can ensure the stability of the T-shaped plate 13 in this position.

[0042] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brake drum fixture that prevents deformation, comprising a brake drum body (1) and a bottom plate (26), characterized in that, The brake drum body (1) and the base plate (26) are fixedly connected. A support column (2) is fixedly connected to the upper part of the base plate (26). An anti-deformation component is arranged on the support column (2). The anti-deformation component includes a first movable plate (3) and a second movable plate (6) movably connected to the support column (2), a first arcuate brake plate (5) and a second arcuate brake plate (8) movably connected to the first movable plate (3) and the second movable plate (6), and a U-shaped spring (10) fixedly connected between the first arcuate brake plate (5) and the second arcuate brake plate (8). When the first arcuate brake plate (5) and the second arcuate brake plate (8) approach the brake drum body (1), the first movable plate (3) and the second movable plate (6) will support the first arcuate brake plate (5) and the second arcuate brake plate (8). Both ends of the U-shaped spring (10) support the opposite sides of the first arcuate brake plate (5) and the second arcuate brake plate (8). The first movable plate (3), the second movable plate (6) and the U-shaped spring (10) will prevent the first arcuate brake plate (5) and the second arcuate brake plate (8) from deforming. A driving fixture component is arranged on the base plate (26). The driving fixture component includes a T-shaped plate (13) fixedly connected to the base plate (26), a first cross plate (18) and a stretching plate (20) movably connected to the T-shaped plate (13), and a second cross plate (22) and an arcuate driving plate (23) arranged on the upper part of the T-shaped plate (13). The movement of the first cross plate (18) will pull the stretching plate (20) to move. The movement of the stretching plate (20) will drive the second cross plate (22) to make a circular motion. The circular motions of the two groups of second cross plates (22) will drive the arcuate driving plate (23) to push the first arcuate brake plate (5) and the second arcuate brake plate (8) to move towards the side close to the brake drum body (1).

2. The anti-deformation brake drum fixture according to claim 1, wherein The outside of the support column (2) and the first movable plate (3) are movably connected. One end of the first movable plate (3) away from the support column (2) is movably connected to a first limiting shaft (4). One end of the first limiting shaft (4) away from the first movable plate (3) and the first arcuate brake plate (5) are fixedly connected.

3. The anti-deformation brake drum fixture according to claim 1, characterized in that, The outside of the support column (2) and the second movable plate (6) are movably connected. One end of the second movable plate (6) away from the support column (2) and the second limiting shaft (7) are movably connected. One end of the second limiting shaft (7) away from the second movable plate (6) and the second arcuate brake plate (8) are fixedly connected.

4. A brake drum fixture for preventing deformation according to claim 1, characterized in that, Two first positioning shafts (9) are symmetrically and fixedly connected to the upper part of the base plate (26). The two groups of first positioning shafts (9) are respectively movably connected to the first arcuate brake plate (5) and the second arcuate brake plate (8).

5. A brake drum fixture for preventing deformation according to claim 1, characterized in that, A through hole (11) is formed in the interior of the base plate (26). Two connecting rods (12) are symmetrically and fixedly connected to the upper part of the base plate (26). One ends of the two groups of connecting rods (12) away from the base plate (26) are jointly and fixedly connected to the T-shaped plate (13).

6. The anti-deformation brake drum fixture according to claim 1, characterized in that, A sliding groove (14) is formed on the outer side of the T-shaped plate (13). A micro motor (15) is fixedly connected to the inner side of the sliding groove (14). The end of the output shaft of the micro motor (15) is fixedly connected to a lead screw (16). The lead screw (16) is in threaded connection with a moving plate (17).

7. The anti-deformation brake drum fixture according to claim 6, characterized in that The upper part of the moving plate (17) is fixedly connected to a first cross plate (18). Moving rods (19) are symmetrically and fixedly connected to one end of the first cross plate (18) away from the moving plate (17). The ends of the moving rods (19) away from the first cross plate (18) are movably connected to a stretching plate (20).

8. A brake drum fixture for preventing deformation according to claim 1, characterized in that, One end of the stretching plate (20) away from the moving rods (19) is movably connected to a fixed rod (21). The end of the fixed rod (21) away from the stretching plate (20) is fixedly connected to a second cross plate (22).

9. A brake drum fixture for preventing deformation according to claim 1, wherein One end of the second cross plate (22) away from the fixed rod (21) is rotatably connected to a second positioning shaft (24). The end of the second positioning shaft (24) away from the second cross plate (22) is fixedly connected to the T-shaped plate (13).

10. A brake drum fixture for preventing deformation according to claim 1, characterized in that, The outer side of the second cross plate (22) is fixedly connected to an arcuate drive plate (23). The ends of the two arcuate drive plates (23) away from the second cross plate (22) are respectively fixedly connected to a first arcuate brake plate (5) and a second arcuate brake plate (8). A brake groove (25) is formed on the inner side of the brake drum body (1). The inner side of the brake groove (25) is respectively adapted to the first arcuate brake plate (5) and the second arcuate brake plate (8).

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