Brake shoe bolt dismounting device

Abstract

The utility model relates to the technical field of maintenance, in particular to a brake shoe bolt dismounting device which comprises a climbing rod, a climbing device and a handle, a supporting base is fixedly arranged at one end of the climbing rod, a rack is arranged on one side of the climbing rod, the climbing device is arranged outside the climbing rod in a sliding and sleeving mode, a first supporting plate is fixedly arranged on one side of the climbing device, and the climbing device is provided with a through notch. The notch faces the direction of the rack and is rotationally provided with a gear engaged with the rack; a driving piece is arranged at one end of the handle, one end of the driving piece is fixedly connected with the handle, the other end of the driving piece is rotationally connected with the climber, and the handle is rotationally provided with a one-way locking key to drive the gear to rotate in one direction; the climbing device is rotationally provided with a rotation locking key used for limiting rotation of the gear. The brake shoe bolt detacher can improve fault processing efficiency, reduces labor intensity, solves the problem that an old brake shoe bolt detacher is not suitable for various vehicle types, and is safer and more reliable in tool use and simpler in operation.

Description

Technical Field

[0001] This utility model relates to the field of maintenance technology, and in particular to a brake shoe pin disassembly device. Background Technology

[0002] Brake shoe braking is a common tread braking method used on domestic railway freight cars. It converts the kinetic energy of the freight car into heat energy by pressing the wheel tread against the brake shoe, thus achieving braking. Therefore, brake shoes typically experience high wear. When they wear to a certain extent or experience partial breakage, they must be replaced promptly to ensure sufficient braking force for the safe operation of the freight car. During brake shoe replacement, if the brake shoe pin is stuck or tightened, a special brake shoe pin removal tool must be used.

[0003] Currently used tools such as Figure 1 As shown, the disassembly block A is threadedly engaged with the lead screw B, which is rotatably mounted on the base D. By rotating the lead screw B with the flywheel wrench C, the disassembly block A is driven to move upward. The disassembly block A fits against the upper part of the brake shoe pin, and the disassembly block A continues to move upward to disassemble the brake shoe pin.

[0004] The existing tools have the following drawbacks: First, they are inefficient, taking up to 4 minutes to troubleshoot; second, they are bulky, requiring a large operating space, and are not suitable for various types of vehicles, such as flatcars, shared flatcars, and JSQ6 vehicles; third, they are labor-intensive for workers, as the existing tools weigh 7.5KG, are inconvenient to move, and require workers to crawl under the vehicle for maintenance, which is cramped and increases the risk of bumps and bruises. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides a brake shoe pin removal device, which improves troubleshooting efficiency, reduces labor intensity, solves the problem that old-style brake shoe pin removers are not applicable to various vehicle models, and makes the tool safer, more reliable, and easier to operate.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A brake shoe pin removal device includes a climbing rod, a climbing device, and a handle.

[0008] A support base is fixedly provided at one end of the climbing pole, a rack is provided on one side of the climbing pole, the climbing device is slidably sleeved on the outside of the climbing pole, a first support plate is fixedly provided on one side of the climbing device, a through slot is provided on the side of the climbing device facing away from the first support plate, and the slot faces the rack, and a gear that meshes with the rack is rotatably provided in the slot.

[0009] One end of the handle is provided with a driving component, one end of which is fixedly connected to the handle, and the other end is rotatably connected to the climber. The handle is provided with a one-way locking key, which is located on the side of the gear away from the support base, so as to drive the gear to rotate in one direction. The climber is provided with a rotation locking key, which is located on the side of the gear away from the one-way locking key, so as to restrict the rotation of the gear.

[0010] Furthermore, one end of the one-way locking key is provided with a first locking tooth. When the handle is rotated away from the support base, one side of the first locking tooth pushes the gear to rotate. When the handle is rotated closer to the support base, the other side of the first locking tooth moves along the tooth surface of the gear.

[0011] Furthermore, connecting plates are fixedly provided on both sides of the driving component, and the connecting plates are rotatably connected to the climber. The one-way locking key is located between the two connecting plates, and the two sides of the one-way locking key away from the first locking tooth are rotatably connected to the two connecting plates respectively.

[0012] Furthermore, one end of the rotary locking key is rotatably connected to the climber, and the other end is a release element. A second locking tooth is provided on the side of the rotary locking key near the climber, and a spring plate is provided on the side of the rotary locking key facing away from the gear. The two ends of the spring plate abut against the release element and the climber, respectively. Under the elastic force of the spring plate, one side of the second locking tooth engages with the gear to restrict the rotation of the gear. When the handle is rotated away from the support base and drives the gear to rotate forward, one side of the second locking tooth moves along the tooth surface of the gear.

[0013] Furthermore, the climber is provided with second trays on both sides adjacent to the first tray.

[0014] Furthermore, the support base is a Y-shaped structure that fits into the brake shoe pin, and the opening of the support base faces away from the side of the climber.

[0015] The beneficial effects of this utility model are:

[0016] 1. By installing the support base onto the upper part of the brake shoe support, the reciprocating handle, in conjunction with the one-way locking key and the rotary locking key, allows the gear to rotate in one direction. Simultaneously, the climber moves along the end of the climbing rod away from the support base, allowing the first support plate to abut against the upper part of the brake shoe pin. Continuing to reciprocate the handle, the climber continues to move, driving the brake shoe pin upwards, thereby removing the brake shoe pin. This utility model can improve the working efficiency by more than 50%, shortening the brake shoe pin removal time to less than 2 minutes, effectively improving railway transportation efficiency. Moreover, this utility model has a simple structure, reduces labor intensity, and weighs only 2.75kg, more than half the weight of the old tool, making it easy to transport and operate. Utilizing the lever principle, simply shaking the handle up and down amplifies the applied force 20 times onto the brake shoe pin, easily completing the removal. The handle of this utility model can be placed outside the triangular hole of the side frame, providing ample operating space and making it suitable for all train models, solving the problem of the old tool being unsuitable for various train models. Meanwhile, the handlebars are placed outside the triangular holes of the side frame, eliminating the need to crawl under the vehicle and fundamentally eliminating the safety hazards of bumps and bruises caused by the narrow operating space.

[0017] 2. During the reciprocating swing of the handle, when the handle rotates away from the support base, under the weight of the one-way locking key, one side of the first locking tooth pushes the gear to rotate forward, causing the gear to drive the climbing rod to move away from the handle. At the same time, one side of the second locking tooth moves along the tooth surface of the gear, allowing the gear to rotate smoothly and increasing the distance between the support base and the first support plate. When the handle rotates towards the support base, the other side of the first locking tooth moves along the tooth surface of the gear, allowing the handle to swing smoothly. At the same time, under the elastic force of the spring plate, one side of the second locking tooth engages with the gear to restrict the gear's reverse rotation, ensuring that the distance between the support base and the first support plate remains unchanged when the handle rotates towards the support base, ensuring that the brake shoe pin can be easily disassembled. Attached Figure Description

[0018] Figure 1 This is the tool currently in use.

[0019] Figure 2 This is a schematic diagram of the structure of a brake shoe pin disassembly device according to a preferred embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the climbing device structure of the brake shoe pin disassembly device according to a preferred embodiment of the present invention.

[0021] In the diagram, 1-climbing pole, 11-support base, 12-rack, 13-first pin, 2-climber, 201-slot, 21-first support plate, 22-second support plate, 3-handle, 31-drive component, 311-connecting plate, 32-second pin, 33-grip, 4-gear, 5-one-way locking key, 51-first locking tooth, 6-rotation locking key, 61-release component, 62-second locking tooth, 63-spring plate, 64-third pin. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] Please also see Figure 2 and Figure 3 The brake shoe pin disassembly device of a preferred embodiment of the present invention includes a climbing rod 1, a climbing device 2 and a handle 3.

[0026] A support base 11 is fixedly installed at one end of the climbing pole 1. A rack 12 is installed on one side of the climbing pole 1. The climbing device 2 is slidably sleeved on the outside of the climbing pole 1. A first support plate 21 is fixedly installed on one side of the climbing device 2. A through slot 201 is provided on the side of the climbing device 2 facing away from the first support plate 21, and the slot 201 faces the rack 12. A gear 4 that meshes with the rack 12 is rotatably installed in the slot 201.

[0027] A drive component 31 is provided at one end of the handle 3. One end of the drive component 31 is fixedly connected to the handle 3, and the other end is rotatably connected to the climber 2. The handle 3 is rotatably equipped with a one-way locking key 5, which is located on the side of the gear 4 away from the support base 11, so as to drive the gear 4 to rotate in one direction. The climber 2 is rotatably equipped with a rotation locking key 6, which is located on the side of the gear 4 away from the one-way locking key 5, so as to limit the rotation of the gear 4. In this embodiment, the handle 3 and the gear 4 are rotatably connected to the climber 2 through a first pin 13.

[0028] Preferably, a silicone grip sleeve 33 is fitted onto the end of the handle 3 away from the climber 2.

[0029] In this embodiment, by installing the support base 11 onto the upper part of the brake shoe support, the reciprocating swing handle 3, in cooperation with the one-way locking key 5 and the rotary locking key 6, enables the gear 4 to rotate in one direction. At the same time, the climber 2 moves along the end of the climbing rod 1 away from the support base 11, so that the first support plate 21 can abut against the upper part of the brake shoe pin. Continuing to reciprocate the swing handle 3, the climber 2 continues to move, thereby driving the brake shoe pin to move upward, thus removing the brake shoe pin.

[0030] This embodiment can improve work efficiency by more than 50%, reducing brake shoe pin disassembly time to less than 2 minutes, effectively improving railway transportation efficiency. Moreover, this embodiment has a simple structure, reducing workload, and weighs only 2.75 kg, more than half the weight of the old tool, making it easy to transport and operate. Utilizing the lever principle, simply shaking the handle up and down amplifies the applied force 20 times onto the brake shoe pin, easily completing disassembly. The handle 3 of this embodiment can be placed outside the triangular hole of the side frame, providing ample operating space and making it suitable for all train models, solving the problem of the old tool's inapplicability on various train models. Furthermore, placing the handle 3 outside the triangular hole of the side frame eliminates the need to crawl under the train, fundamentally eliminating the safety hazards of bumps and collisions caused by limited operating space.

[0031] like Figure 2 As shown, one end of the one-way locking key 5 is provided with a first locking tooth 51. When the handle 3 is rotated away from the support base 11, one side of the first locking tooth 51 pushes the gear 4 to rotate. When the handle 3 is rotated towards the support base 11, the other side of the first locking tooth 51 moves along the tooth surface of the gear 4.

[0032] Connecting plates 311 are fixedly mounted on both sides of the driving component 31. The connecting plates 311 are rotatably connected to the climber 2. A one-way locking key 5 is located between the two connecting plates 311, and the two sides of the one-way locking key 5 away from the first locking tooth 51 are rotatably connected to the two connecting plates 311 respectively. Under the action of its own weight, the one-way locking key 5 can engage with the first locking tooth 51 via the gear 4. In this embodiment, the one-way locking key 5 is rotatably connected to the connecting plate 311 via the second pin 32.

[0033] One end of the rotary locking key 6 is rotatably connected to the climber 2, and the other end is a release element 61. A second locking tooth 62 is provided on the side of the rotary locking key 6 near the climber 2, and a spring plate 63 is provided on the side of the rotary locking key 6 facing away from the gear 4. Both ends of the spring plate 63 abut against the release element 61 and the climber 2, respectively. Under the elastic force of the spring plate 63, one side of the second locking tooth 62 engages with the gear 4 to restrict the rotation of the gear 4. When the handle 3 is rotated away from the support base 11 and drives the gear 4 to rotate clockwise, one side of the second locking tooth 62 moves along the tooth surface of the gear 4. The rotary locking key 6 is rotatably connected to the climber 2 via a third pin 64. Under the elastic force of the spring plate 63, the release element 61 can rotate towards the gear 4, allowing the second locking tooth 62 to be embedded in the groove of the gear 4.

[0034] During the reciprocating swing of the handle 3, when the handle 3 rotates away from the support base 11, under the weight of the one-way locking key 5, one side of the first locking tooth 51 pushes the gear 4 to rotate forward, causing the gear 4 to drive the climbing rod 1 to move away from the handle 3. At the same time, one side of the second locking tooth 62 moves along the tooth surface of the gear 4, allowing the gear 4 to rotate smoothly, thereby increasing the distance between the support base 11 and the first support plate 21, so that the gear 4 can be engaged when it rotates.

[0035] When the handle 3 is rotated toward the support base 11 or released, the other side of the first locking tooth 51 moves along the tooth surface of the gear 4, allowing the handle 3 to swing smoothly. At the same time, under the elastic force of the spring plate 63, one side of the second locking tooth 62 engages with the gear 4 to restrict the reverse rotation of the gear 4, ensuring that the distance between the support base 11 and the first support plate 21 remains unchanged when the handle 3 is rotated toward the support base 11, ensuring that the brake shoe pin can be disassembled smoothly.

[0036] In this embodiment, the device is inverted so that the support base 11 faces away from the ground. The one-way locking key 5 rotates under its own weight and disengages from the gear 4. Then, the release member 61 is pressed down towards the support base 11, so that the second locking tooth 62 disengages from the gear 4. The gear 4 can rotate freely, allowing the climber 2 to move freely on the climbing rod 1. This allows the distance between the climber 2 and the support base 11 to be adjusted so that the climber 2 can be adjusted to a suitable position before disassembly.

[0037] In this embodiment, the climber 2 is provided with second support plates 22 on both sides adjacent to the first support plate 21. The second support plates 22 are located on both sides of the climber 2 near the support base 11. Under the action of the first support plate 21 and the second support plate 22, it can adapt to brake shoe pins in different directions, so as to facilitate the disassembly of brake shoe pins in different directions.

[0038] In this embodiment, the support base 11 is a Y-shaped structure that fits into the brake shoe pin, and the opening of the support base 11 faces away from the climber 2. The Y-shaped structure of the support base 11 can be locked onto the brake shoe support, preventing the climber 1 from slipping during disassembly.

[0039] The method of using the brake shoe pin removal device in this embodiment is as follows:

[0040] Invert the device so that the support base 11 faces away from the ground, press down the release piece 61 toward the support base 11, and adjust the distance between the climber 2 and the support base 11 so that the climber 2 is adjusted to a suitable position before disassembly.

[0041] The support base 11 is installed on the upper part of the brake shoe holder. The appropriate first support plate 21 and second support plate 22 are selected according to the direction of the brake shoe pin. The handle 3 is swung back and forth. When the handle 3 rotates away from the support base 11, one side of the first locking tooth 51 pushes the gear 4 to rotate clockwise, causing the gear 4 to drive the climbing rod 1 to move away from the handle 3. Simultaneously, one side of the second locking tooth 62 moves along the tooth surface of the gear 4, increasing the distance between the support base 11 and the first support plate 21. When the handle 3 rotates towards the support base 11, the other side of the first locking tooth 51 moves along the tooth surface of the gear 4, allowing the handle 3 to swing smoothly. Simultaneously, under the elastic force of the spring plate 63, one side of the second locking tooth 62 engages with the gear 4 to restrict the reverse rotation of the gear 4, ensuring that the distance between the support base 11 and the first support plate 21 remains unchanged when the handle 3 rotates towards the support base 11. Continue to swing the handle 3 back and forth until the first support plate 21 or the second support plate 22 comes into contact with the brake shoe pin. Under the support of the support base 11 and the first support plate 21 or the second support plate 22, the brake shoe pin will be removed.

Claims

1. A brake shoe pin disassembly device, characterized in that, Includes climbing poles (1), climbing devices (2), and handles (3), One end of the climbing pole (1) is fixedly provided with a support base (11), and a rack (12) is provided on one side of the climbing pole (1). The climbing device (2) is slidably sleeved on the outside of the climbing pole (1). A first support plate (21) is fixedly provided on one side of the climbing device (2). A through slot (201) is provided on the side of the climbing device (2) facing away from the first support plate (21), and the slot (201) faces the rack (12). A gear (4) that meshes with the rack (12) is rotatably provided in the slot (201). One end of the handle (3) is provided with a driving component (31), one end of the driving component (31) is fixedly connected to the handle (3), and the other end is rotatably connected to the climber (2). The handle (3) is rotatably provided with a one-way locking key (5), which is located on the side of the gear (4) away from the support base (11) to drive the gear (4) to rotate in one direction. The climber (2) is rotatably provided with a rotation locking key (6), which is located on the side of the gear (4) away from the one-way locking key (5) to restrict the rotation of the gear (4).

2. The brake shoe pin disassembly device according to claim 1, characterized in that: One end of the one-way locking key (5) is provided with a first locking tooth (51). When the handle (3) is rotated away from the support base (11), one side of the first locking tooth (51) pushes the gear (4) to rotate. When the handle (3) is rotated towards the support base (11), the other side of the first locking tooth (51) moves along the tooth surface of the gear (4).

3. The brake shoe pin removal device according to claim 2, characterized in that: The drive component (31) is fixedly provided with connecting plates (311) on both sides. The connecting plates (311) are rotatably connected to the climber (2). The one-way locking key (5) is located between the two connecting plates (311), and the two sides of the one-way locking key (5) away from the first locking tooth (51) are rotatably connected to the two connecting plates (311).

4. The brake shoe pin removal device according to claim 1, characterized in that: One end of the rotary locking key (6) is rotatably connected to the climber (2), and the other end is a release element (61). The rotary locking key (6) has a second locking tooth (62) on the side near the climber (2), and a spring plate (63) on the side of the rotary locking key (6) facing away from the gear (4). The two ends of the spring plate (63) abut against the release element (61) and the climber (2) respectively. Under the elastic force of the spring plate (63), one side of the second locking tooth (62) engages with the gear (4) to restrict the rotation of the gear (4). When the handle (3) rotates away from the support base (11) and drives the gear (4) to rotate forward, one side of the second locking tooth (62) moves along the tooth surface of the gear (4).

5. The brake shoe pin disassembly device according to claim 1, characterized in that: The climber (2) is provided with a second support plate (22) on each side adjacent to the first support plate (21).

6. The brake shoe pin removal device according to claim 1, characterized in that: The support base (11) is a Y-shaped structure that fits with the brake shoe pin, and the opening of the support base (11) faces away from the side of the climber (2).

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