Lightweight stamping and welding brake shoe

Abstract

The utility model relates to the technical field of brake shoes, and discloses a lightweight punching and welding brake shoe which comprises a shoe piece, an arc-shaped wing plate and a brake pad, the inner wall of the shoe piece is fixedly connected with the arc-shaped wing plate, a through hole is formed in the inner wall of the shoe piece, and a first through groove is formed in the outer surface of the shoe piece. According to the light-weight punching and welding brake shoe, a straight screwdriver is controlled to be inserted into a straight groove, a limiting block and a connecting rod are limited, then a cross screwdriver is controlled to rotate a cross groove screw anticlockwise, so that the cross groove screw is rotated out of the interior of the connecting rod, fixing between the shoe piece and the brake pad is relieved, and then the brake pad is fixed. According to the device, the brake pad can be disassembled by a worker, otherwise, a new brake pad can be installed on the outer surface of the shoe, and therefore the function of independently disassembling the brake pad is achieved, the damaged brake pad can be conveniently and independently replaced, and the maintenance cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of brake shoes, in particular to a lightweight punch-welded brake shoe. Background Art

[0002] The brake shoe is a friction component of a drum brake. In addition to having the strength and rigidity required as a component, it should also have the highest possible and stable coefficient of friction, as well as appropriate wear resistance, heat resistance, heat dissipation, and heat capacity. When working, the brake shoe mainly drives the brake pad to contact the inner wall of the brake drum, slowing down and stopping the vehicle through friction. However, the brake pad on the outer surface of the existing brake shoe is basically directly fixed to the outer surface of the brake shoe. Therefore, it is not easy to achieve the detachable function. When the brake pad is severely damaged due to long-term use and needs to be replaced, the brake shoe is often replaced together, which increases the maintenance cost. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies of the prior art, the present invention provides a lightweight stamped and welded brake shoe, which solves the problems raised in the above-mentioned background technology.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lightweight stamped and welded brake shoe, comprising a shoe, an arc-shaped wing plate and a brake pad, the inner wall of the shoe being fixedly connected with the arc-shaped wing plate, the inner wall of the shoe being provided with a through hole, the outer surface of the shoe being provided with a first through groove, the through hole being communicated with the first through groove, the outer surface of the shoe being in contact with the brake pad, the outer surface of the brake pad being provided with a limiting hole, the inner wall of the brake pad being provided with a second through groove, the limiting hole being communicated with the second through groove, a limiting block being arranged inside the limiting hole, a connecting rod being fixedly connected to the upper surface of the limiting block, the connecting rod being inserted into the second through groove and the first through groove, an internal thread being provided on the inner wall of the connecting rod, a cross-slot screw being provided inside the through hole, and the cross-slot screw being threadedly connected to the connecting rod through the internal thread.

[0007] Preferably, a reinforcement piece is fixedly connected to the outer side surface of the arc-shaped wing plate, and the lower surface of the reinforcement piece is fixedly connected to the inner wall of the shoe.

[0008] Preferably, a S-shaped groove is provided on the lower surface of the limiting block.

[0009] Preferably, the outer surface of the cross-recessed screw is provided with an external thread, and the external thread is threadably connected to the internal thread.

[0010] Preferably, the inner diameters of the first through groove and the second through groove are both adapted to the outer diameter of the connecting rod.

[0011] Preferably, the limiting block, the connecting rod and the cross-slot screw are all made of stainless steel.

[0012] (3) Beneficial effects

[0013] Compared with the prior art, the present invention provides a lightweight stamped and welded brake shoe with the following features:

[0014] Beneficial effects:

[0015] 1. The lightweight stamped and welded brake shoe controls a flat-blade screwdriver to be inserted into the flat-blade slot to limit the limit block and the connecting rod, and then controls the cross-slot screwdriver to rotate the cross-slot screw counterclockwise so that the cross-slot screw is rotated out of the connecting rod. At this point, the fixation between the shoe and the brake pad is released. Subsequently, the staff can remove the brake pad, and reverse the operation to install a new brake pad on the outer surface of the shoe. Therefore, the device realizes the function of individually removing the brake pad, which is convenient for individually replacing the damaged brake pad and effectively reduces the maintenance cost.

[0016] 2. The lightweight stamped and welded brake shoe can effectively increase the connection area between the arc-shaped wing plate and the shoe piece by setting up several groups of reinforcement pieces, effectively improve the fixing effect between the arc-shaped wing plate and the shoe piece, and greatly reduce the probability of fracture between the arc-shaped wing plate and the shoe piece when the device is used. At the same time, the improved structure of the device is relatively simple and lightweight, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a top view of the overall structure of the utility model;

[0018] Figure 2 This is a bottom view of the overall structure of the utility model;

[0019] Figure 3 This is a vertical cross-sectional diagram of the shoe and brake pad structure of the utility model;

[0020] Figure 4 It is a vertical cross-sectional diagram of the local structure of the utility model;

[0021] Figure 5 It is a schematic diagram of the partial structure decomposition of the utility model.

[0022] In the figure: 1, shoe; 2, curved wing plate; 3, through hole; 4, first through slot; 5, brake pad; 6, limit hole; 7, second through slot; 8, limit block; 9, connecting rod; 10, internal thread; 11, cross-slot screw; 12, reinforcement; 13, slot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-5 The utility model provides a technical solution: a lightweight stamped and welded brake shoe, comprising a shoe 1, an arc-shaped wing plate 2 and a brake pad 5. The inner wall of the shoe 1 is fixedly connected with the arc-shaped wing plate 2, the inner wall of the shoe 1 is provided with a through hole 3, the outer surface of the shoe 1 is provided with a first through groove 4, the through hole 3 is communicated with the first through groove 4, the outer surface of the shoe 1 contacts the brake pad 5, the outer surface of the brake pad 5 is provided with a limiting hole 6, the inner wall of the brake pad 5 is provided with a second through groove 7, the limiting hole 6 is communicated with the second through groove 7, a limiting block 8 is arranged inside the limiting hole 6, and a connecting rod 9 is fixedly connected to the upper surface of the limiting block 8, the connecting rod 9 is inserted into the second through groove 7 and the first through groove 4, the inner wall of the connecting rod 9 is provided with an internal thread 10, and a cross slot screw 11 is provided inside the through hole 3, and the cross slot screw 11 is threadedly connected to the connecting rod 9 through the internal thread 10.

[0025] By controlling the flat-blade screwdriver to be inserted into the flat-blade slot 13, the limit block 8 and the connecting rod 9 are limited, and then the cross-blade screwdriver is controlled to rotate the cross-blade screw 11 counterclockwise, so that the cross-blade screw 11 is rotated out of the interior of the connecting rod 9. At this point, the fixation between the shoe 1 and the brake pad 5 is released. Subsequently, the staff can remove the brake pad 5, and reverse the operation to install a new brake pad 5 on the outer surface of the shoe 1. Therefore, the device realizes the function of separately removing the brake pad 5, which is convenient for separately replacing the damaged brake pad 5, and effectively reduces the maintenance cost.

[0026] By setting up several groups of reinforcement pieces, the connection area between the arc-shaped wing plate 2 and the shoe plate 1 can be effectively increased, the fixing effect between the arc-shaped wing plate 2 and the shoe plate 1 can be effectively improved, and the probability of fracture between the arc-shaped wing plate 2 and the shoe plate 1 when the device is used is greatly reduced. At the same time, the improved structure of the device is relatively simple and lightweight, and is suitable for promotion.

[0027] The sizes and shapes of all components in this structure are not specifically limited here and need to be produced according to actual conditions.

[0028] In order to improve the stability of the connection between the arc-shaped wing plate 2 and the shoe 1, the utility model has a reinforcing member 12 fixedly connected to the outer side surface of the arc-shaped wing plate 2, and the lower surface of the reinforcing member 12 is fixedly connected to the inner wall of the shoe 1. The reinforcing member 12 increases the connection area between the arc-shaped wing plate 2 and the shoe 1, thereby improving the stability of the connection between the arc-shaped wing plate 2 and the shoe 1.

[0029] In order to facilitate the staff to screw the cross-slot screw 11, the utility model provides a slotted groove 13 on the lower surface of the limit block 8. Due to the provision of the slotted groove 13, the staff can control the slotted screwdriver to insert into the slotted groove 13 to limit the limit block 8, thereby preventing the connecting rod 9 and the limit block 8 from rotating when the staff screws the cross-slot screw 11, thereby facilitating the staff to screw the cross-slot screw 11.

[0030] In order to facilitate the staff to fix the cross slot screw 11 and the connecting rod 9, the utility model provides an external thread on the outer surface of the cross slot screw 11, and the external thread is threadedly connected to the internal thread 10. Therefore, the staff only needs to rotate the cross slot screw 11 clockwise to rotate it into the interior of the connecting rod 9. At this point, the fixation between the connecting rod 9 and the cross slot screw 11 is completed. This operation step is simple and convenient for the staff to fix the cross slot screw 11 and the connecting rod 9.

[0031] In order to facilitate the staff to insert the connecting rod 9 into the first through groove 4 and the second through groove 7, the inner diameters of the first through groove 4 and the second through groove 7 are set to match the outer diameter of the connecting rod 9, so the sizes are adapted, thereby facilitating the staff to insert the connecting rod 9 into the first through groove 4 and the second through groove 7.

[0032] In order to extend the service life of the limit block 8, the connecting rod 9 and the cross-slot screw 11, the utility model sets the limit block 8, the connecting rod 9 and the cross-slot screw 11 to be made of stainless steel. Stainless steel has high hardness, is not easy to deform, and is not easy to rust. Therefore, the service life of the limit block 8, the connecting rod 9 and the cross-slot screw 11 is extended.

[0033] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0034] When in use, when the staff is disassembling and replacing the brake pad 5, they control the flat-head screwdriver to insert the inside of the flat-head slot 13 to restrict the limit block 8 and the connecting rod 9. Then the staff controls the cross screwdriver to insert the inside of the cross-slot screw 11, and then drives the cross-slot screw 11 to rotate counterclockwise. Because the cross-slot screw 11 and the internal thread 10 are threadedly connected, the cross-slot screw 11 can also slowly move upward when rotating counterclockwise until the cross-slot screw 11 moves upward out of the inside of the connecting rod 9, releasing the fixation between the cross-slot screw 11 and the connecting rod 9, and then push the connecting rod 9 downward out of the first through groove 4 and the second through groove 7. At this point, the fixation between the shoe 1 and the brake pad 5 is released, and then the staff can disassemble the brake pad 5. Then the staff performs the reverse operation to install the new brake pad 5 on the outer surface of the shoe 1, and thus completes the separate disassembly and separate replacement of the brake pad.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight stamped and welded brake shoe, comprising a shoe (1), an arc-shaped wing plate (2) and a brake pad (5), characterized in that: The inner wall of the shoe (1) is fixed with an arc-shaped wing plate (2), the inner wall of the shoe (1) is provided with a through hole (3), the outer surface of the shoe (1) is provided with a first through groove (4), the through hole (3) is communicated with the first through groove (4), the outer surface of the shoe (1) contacts a brake pad (5), the outer surface of the brake pad (5) is provided with a limiting hole (6), the inner wall of the brake pad (5) is provided with a second through groove (7), the limiting hole (6) is communicated with the second through groove (7), and the limiting hole (6) is communicated with the second through groove (7). The through slots (7) are connected to each other, a limiting block (8) is provided inside the limiting hole (6), a connecting rod (9) is fixed to the upper surface of the limiting block (8), the connecting rod (9) is inserted into the inside of the second through slot (7) and the first through slot (4), an inner wall of the connecting rod (9) is provided with an internal thread (10), a cross-slot screw (11) is provided inside the through hole (3), and the cross-slot screw (11) is threadedly connected to the connecting rod (9) through the internal thread (10).

2. The lightweight stamping and welding brake shoe according to claim 1, characterized in that: A reinforcing piece (12) is fixedly connected to the outer side surface of the arc-shaped wing plate (2), and the lower surface of the reinforcing piece (12) is fixedly connected to the inner wall of the shoe (1).

3. The lightweight stamping and welding brake shoe according to claim 1, characterized in that: A slot (13) is formed on the lower surface of the limiting block (8).

4. The lightweight stamping and welding brake shoe according to claim 1, characterized in that: The outer surface of the cross-slot screw (11) is provided with an external thread, which is threadably connected to the internal thread (10).

5. The lightweight stamping and welding brake shoe according to claim 1, characterized in that: The inner diameters of the first through groove (4) and the second through groove (7) are both adapted to the outer diameter of the connecting rod (9).

6. The lightweight stamping and welding brake shoe according to claim 1, characterized in that: The materials used to make the limit block (8), the connecting rod (9) and the cross-slot screw (11) are all set to be stainless steel.

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