Disassembling tool for elastic pin of brake disc of rail train

Abstract

The utility model relates to a disassembling tool for a rail train brake disc spring pin, which comprises a sleeve head, a sliding rod and a sliding sleeve, one end of the sleeve head is connected with the top end of the sliding rod, the other end of the sliding rod is sleeved on the spring pin on a train brake disc, and a locking component is further arranged in the sleeve head. The locking assembly extends towards the interior of the sleeve head and abuts against the outer side wall of the elastic pin, the sliding sleeve is movably installed on the sliding rod and can freely move in the direction of the sliding rod, and a circular check block is arranged at the tail end of the sliding rod. The sleeve head is arranged outside the elastic pin in a covering mode, then the locking assembly on the sleeve head abuts against the side wall of the elastic pin, the elastic pin is locked in the sleeve head, the sliding sleeve repeatedly impacts the bottom of the sliding rod, inertia is generated, and the elastic bolt is withdrawn; by means of the tool of the structure, the brake disc elastic pin can be withdrawn under the condition that the shaft end is prevented from being damaged, and using is very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of elastic pin tooling, in particular to a disassembly tooling for an elastic pin of a brake disc of a rail train. Background Art

[0002] The elastic pin of the brake disc of the urban rail transit brake system is pressed into the shaft end by a hydraulic pump. When replacing the brake disc, the elastic pin on the brake disc needs to be removed before the replacement operation can be completed. However, since the elastic pin itself is elastic, it is locked in the mounting hole after being pressed, making it impossible to withdraw it manually during disassembly. Commonly used disassembly and assembly tools can easily touch the shaft end. Therefore, in order to safely withdraw the brake disc elastic pin without damaging the shaft end, a tooling for auxiliary disassembly is required. Utility Model Content

[0003] Based on the above description, the utility model provides a disassembly tool for the elastic pin of the brake disc of a railway train to solve the problem that when the brake disc is disassembled and assembled, the elastic pin is relatively tight and the commonly used disassembly and assembly tools can easily touch the shaft end and cause damage.

[0004] The utility model is realized through the following technical solutions:

[0005] A disassembly tool for the elastic pin of a railway train brake disc, characterized in that it includes a sleeve, a slide rod and a sleeve, wherein one end of the sleeve is connected to the top end of the slide rod, and the other end of the slide rod is sleeved on the elastic pin on the train brake disc, and a locking assembly is also provided inside the sleeve, and the locking assembly extends toward the inside of the sleeve and abuts against the outer side wall of the elastic pin, the sleeve is movably mounted on the slide rod and can move freely along the direction of the slide rod, and a circular stopper is provided at the tail end of the slide rod, and the end face area of ​​the stopper is larger than the end face area of ​​the sleeve.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the sleeve is cylindrical and the inner wall of the upper half is provided with threads, the outer wall of the top end of the slide rod is also provided with threads and assembled with the sleeve threads, and the inner wall of the lower half of the sleeve fits with the outer wall of the elastic pin.

[0008] Furthermore, the locking assembly includes a positioning hole arranged on the side wall of the sleeve, and a pin is installed in the positioning hole through a threaded structure. The bottom end of the pin extends toward the inside of the sleeve and abuts against the outer side wall of the elastic pin.

[0009] Furthermore, the sleeve is cylindrical, and the interior of the sleeve is hollow and extends downward to form an annular opening. A joint is provided on the top of the slide rod, and the joint is adapted to the size of the annular opening and is rotatably connected.

[0010] Furthermore, the locking assembly includes a vortex groove arranged on the top end surface of the joint, and a gap is left between the top of the joint and the inner top surface of the sleeve, and the gap extends toward the inner and outer sides of the sleeve to form a plurality of limit grooves, and a limit block is slidably installed in each of the limit grooves, and the bottom of the limit block protrudes downward and is movably engaged in the vortex groove.

[0011] Furthermore, the inner side of the limit block is arranged in an arc shape, an elastic pad is arranged on the arc surface of the limit block, and a plurality of anti-slip lines are arranged on the elastic pad.

[0012] Furthermore, a shallow groove is formed on the inner portion of the outer wall of the sliding sleeve, and the bottom surface of the shallow groove is provided with frosted patterns. A circular guard plate is arranged at the bottom end of the sliding sleeve, and the guard plate is the same size as the stopper.

[0013] Furthermore, the upper portion of the outer side wall of the slide rod protrudes and forms a spline structure, the inner side wall of the slide sleeve is provided with a spline groove, and the slide rod and the slide sleeve are movably connected to each other.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0015] In the present application, a sleeve cover is arranged on the outside of the elastic pin, and then the locking assembly on the sleeve head is pressed against the side wall of the elastic pin to lock the elastic pin inside the sleeve, and then the sliding sleeve repeatedly hits the bottom of the sliding rod to generate inertia to withdraw the elastic bolt. The tooling with this structure can withdraw the brake disc elastic pin without damaging the shaft end, and is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the sleeve head, the sliding rod and the sliding sleeve in the first embodiment;

[0017] Figure 2 It is a structural schematic diagram of the sleeve head, the sliding rod and the sliding sleeve in the second embodiment;

[0018] Figure 3 It is a structural schematic diagram of the sleeve head and the locking assembly in the second embodiment;

[0019] Figure 4 It is a structural schematic diagram of the joint in Example 2;

[0020] Among them: 1. sleeve; 2. slide rod; 21. stopper; 22. joint; 3. sleeve; 31. shallow groove; 32. guard plate; 4. locking assembly; 41. positioning hole; 42. pin; 43. limit groove; 44. limit block. DETAILED DESCRIPTION

[0021] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0023] Combination Figure 1-4 As shown, a disassembly tool for a rail train brake disc elastic pin comprises:

[0024] The sleeve 1 is cylindrical, and its upper half is sleeved on the elastic pin and separates it from the shaft end, so that it can avoid damaging the nearby shaft end during the process of pulling out the elastic pin;

[0025] The slide bar 2, whose top end is connected to the tail end of the sleeve 1, is a long metal rod, which is mainly used as the main part of the whole tooling to connect and support various components, and a circular stopper 21 is also provided at its tail end;

[0026] The sliding sleeve 3 is arranged on the sliding rod 2, and generates inertial force by repeatedly hitting the tail end of the sliding rod 2, so that the elastic pin is pulled out smoothly.

[0027] The locking assembly 4 is arranged on the side wall of the sleeve 1 and is used to lock the elastic pin inside the sleeve 1 so as to cooperate with other components to pull it out;

[0028] Embodiment 1:

[0029] Specifically, the inner wall of the sleeve 1 and the outer wall of the top end of the slide rod 2 are both provided with threads, and the two are assembled through a threaded structure. Since the structure is a detachable installation structure, it can be disassembled and transported, occupies less space, is easy to carry, and can be connected to various types of sleeves 1, and the sleeve 1 should use a model that is compatible with the elastic pin to be removed, that is, the inner wall of the sleeve 1 is as close to the outer wall of the elastic pin as possible to reduce the gap between the two.

[0030] The locking assembly 4 includes a positioning hole 41 opened on the outer wall of the sleeve 1. The positioning hole 41 is arranged as a bolt hole and a pin 42 is installed by means of a threaded structure. The bottom end of the pin 42 is set to be a plane and extends along the positioning hole 41 toward the inside of the sleeve 1 until it is pressed against the outer wall of the elastic pin, thereby forming a lateral squeezing force on the elastic pin, so that the elastic pin cannot be easily removed from the sleeve 1, thereby locking it.

[0031] After locking it, the sliding sleeve 3 mounted on the sliding rod 2 is moved repeatedly, and its end hits the stopper 21 at the end of the sliding rod 2. The stopper 21 should be set to a structure larger than the end surface area of ​​the sliding sleeve 3. Therefore, after repeatedly hitting the stopper 21, the entire tooling generates inertial force, forcing the elastic pin to move and finally take it out.

[0032] During the repeated impact, the outer wall of the sliding sleeve 3 needs to be manually held. Therefore, in order to prevent the staff from slipping, the center should be recessed inward to form a shallow groove 31, and frosted patterns should be set at the bottom of the groove to increase the friction of holding.

[0033] Moreover, repeated collisions can easily cause the hand to approach the end of the sliding sleeve 3. Therefore, during a rapid collision, it is inevitable that the hand will be pinched during the collision. In order to effectively avoid such a phenomenon, a circular guard plate 32 extending to all sides should be provided on the end face of the sliding sleeve 3. The guard plate 32 can be set to an area of ​​the same size as the block 21, so that it can effectively prevent the hand from approaching the collision point and improve safety.

[0034] Embodiment 2:

[0035] Specifically, the inner wall of the sleeve 1 should be hollow, and the hollow portion extends downward and forms an annular opening on the bottom end surface of the sleeve 1, and a joint 22 is provided on the top of the slide rod 2, which extends directly upward and is sleeved inside the sleeve and rotatably connected.

[0036] The locking assembly 4 includes a vortex groove arranged on the top end face of the connector 22, and a gap is left between the connector 22 and the inner top surface of the sleeve 1, and three limit grooves 43 are formed in the gap extending toward the inside and outside of the sleeve 1 respectively. The three limit grooves 43 are arranged in a circular array, and a limit block 44 is slidably installed in each limit groove 43. The bottom of the limit block 44 extends downward and is movably inserted into the inside of the limit groove 43, thereby forming a simple chuck structure with the connector 22. The staff can drive the connector 22 to rotate by holding the sleeve 1 with one hand and twisting the slide rod 2 with the other hand, and the top of the connector 22 relies on the vortex groove to force the three limit blocks 44 to move away from or close to the outer wall of the elastic pin, and finally release or clamp.

[0037] In the above structure, there is no need to replace other sleeves. This structure can ensure that the sleeve 1 and the elastic pin are always arranged concentrically through the centering effect of the chuck. It has good clamping effect, uniform force, and is more convenient to use, which greatly simplifies the fixing process during disassembly and assembly.

[0038] In addition, in this embodiment, a spline structure should be provided on the outer wall of the slide rod 2, that is, a plurality of rectangular protrusions are provided on the outer wall of the slide rod 2 to form a circular array, and then a spline groove is provided on the inner wall of the sleeve 3 at the same time, and the two are limitedly connected so that when adjusting the locking assembly 4, the staff can hold the frosted texture on the sleeve 3, which makes it easier to exert force.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the technical solution of the embodiments of the utility model.

Claims

1. A disassembly tool for the elastic pin of a railway train brake disc, characterized in that: The invention comprises a sleeve (1), a slide bar (2) and a sleeve (3), wherein one end of the sleeve (1) is connected to the top end of the slide bar (2), the other end of the slide bar (2) is sleeved on an elastic pin on a train brake disc, and a locking assembly (4) is provided inside the sleeve (1), the locking assembly (4) extends toward the inside of the sleeve (1) and abuts against the outer wall of the elastic pin, the sleeve (3) is movably mounted on the slide bar (2) and can move freely along the direction of the slide bar (2), and a circular stopper (21) is provided at the rear end of the slide bar (2), the end surface area of ​​the stopper (21) being larger than the end surface area of ​​the sleeve (3).

2. According to the disassembly tool for the elastic pin of the brake disc of a railway train as described in claim 1, it is characterized in that: The sleeve (1) is cylindrical and has a threaded inner wall on the upper half. The outer wall on the top end of the slide rod (2) is also provided with a thread and is threadably assembled with the sleeve (1). The inner wall on the lower half of the sleeve (1) fits with the outer wall of the elastic pin.

3. The disassembly tool for the elastic pin of the brake disc of a railway train according to claim 2, characterized in that: The locking assembly (4) comprises a positioning hole (41) arranged on the side wall of the sleeve (1), a pin (42) being installed in the positioning hole (41) via a threaded structure, and a bottom end of the pin (42) extending toward the inside of the sleeve (1) and abutting against the outer side wall of the elastic pin.

4. The disassembly tool for the elastic pin of the brake disc of a railway train according to claim 1, characterized in that: The sleeve is cylindrical, and the interior of the sleeve is hollow and extends downward to form an annular opening. A joint (22) is provided on the top of the slide rod (2), and the joint (22) is adapted to the size of the annular opening and is rotatably connected.

5. The disassembly tool for the elastic pin of the brake disc of a railway train according to claim 4, characterized in that: The locking assembly (4) comprises a vortex groove arranged on the top end surface of the joint (22), and a gap is left between the top end of the joint (22) and the inner top surface of the sleeve, and the gap extends toward the inner and outer sides of the sleeve to form a plurality of limit grooves (43), and a limit block (44) is slidably installed in each of the limit grooves (43), and the bottom of the limit block (44) protrudes downward and is movably engaged in the vortex groove.

6. The disassembly tool for the elastic pin of the brake disc of a railway train according to claim 5, characterized in that: The inner side of the limit block (44) is arranged in an arc shape, and an elastic pad is arranged on the arc surface of the limit block (44), and a plurality of anti-slip lines are arranged on the elastic pad.

7. The disassembly tool for the elastic pin of the brake disc of a railway train according to claim 1, characterized in that: The outer wall of the sliding sleeve (3) is partially recessed inward to form a shallow groove (31), the bottom surface of the shallow groove (31) is provided with frosted patterns, and a circular guard plate (32) is arranged at the bottom end of the sliding sleeve (3), and the guard plate (32) is the same size as the stopper (21).

8. The disassembly tool for the elastic pin of the brake disc of a railway train according to claim 6, characterized in that: The upper portion of the outer wall of the slide rod (2) protrudes and forms a spline structure, and the inner wall of the slide sleeve (3) is provided with a spline groove, and the slide rod (2) and the slide sleeve (3) are movably sleeved with each other.

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