Locomotive coupler round pin bush disassembling and assembling tool

Abstract

The utility model discloses a dismounting tool for a round pin bush of a locomotive coupler, and belongs to the technical field of locomotive coupler maintenance. Comprising an upper round pin bush jacking pickaxe, a bolt jacking rod and a lower round pin bush jacking pickaxe, the upper end of the upper round pin bush jacking pickaxe is provided with a jacking head, the lower portion of the upper round pin bush jacking pickaxe abuts against the upper end of the bolt jacking rod and can be rotationally connected with the upper end of the bolt jacking rod, a threaded part is arranged on the lower portion of the bolt jacking rod, and the bolt jacking rod is sleeved with the lower round pin bush jacking pickaxe which is in threaded connection with the threaded part. And a first step surface is arranged on the periphery of the lower round pin bush top pickaxe. The technical problems that according to a traditional installation mode of the round pin bush, the round pin bush is embedded and matched in a beating mode through a tool hammer, so that the pin bush is damaged, the assembly precision and position are difficult to control, the efficiency is low, and the installation quality is difficult to guarantee are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of locomotive hook maintenance, in particular to a locomotive hook round pin sleeve disassembly and assembly tool. Background Art

[0002] A locomotive coupler is a device used to connect a locomotive to a train car, also known as a traction hook or coupling hook. It is usually located at the connection between the front and rear of the locomotive and the front and rear of the train car. Among them, the locomotive coupler round pin sleeve is one of the key components of the locomotive coupler, usually located above and below the round pin connecting the locomotive coupler. It is often a round or convex disc-shaped metal part that can withstand the large amount of impact force and torque generated by the locomotive coupler when pulling the train to ensure a firm connection between the round pin and the car. The locomotive coupler round pin sleeve needs to withstand extreme physical loads, as well as wear and corrosive conditions. Therefore, in these high-intensity working environments, its manufacturing, installation and maintenance must comply with relevant national and industry standards, and it needs to be inspected and replaced regularly.

[0003] The traditional installation method of round pin sleeves is to use a tool hammer to knock the round pin sleeves into place. The installation by hammering has the following main disadvantages: 1. The pin sleeves will be damaged: When hammering, improper force control or inaccurate grasp will cause excessive hammering force or inaccurate position, causing scratches, deformation, or even breakage to the parts. 2. The accuracy and position of the assembly are difficult to control: When installing by hammering, the accuracy and position of the parts during installation cannot be guaranteed. It is difficult to achieve the desired effect by hammering. 3. Time and efficiency are low: The installation by hammering requires manual operation, which usually takes a long time and is inefficient. 4. The installation quality is difficult to guarantee: Due to the above problems in the installation by hammering, the quality of the installation is difficult to guarantee, which may affect the normal use of components and even threaten the safety and reliable operation of the coupler. Therefore, it is necessary to invent a locomotive coupler round pin sleeve disassembly and assembly tool to solve the above problems. Summary of the invention

[0004] The purpose of the utility model is to provide a locomotive hook round pin sleeve disassembly and assembly tool in view of the above problems, so as to solve the technical problems that the traditional installation method of the round pin sleeve is to insert the round pin sleeve into the fit by hammering with a tool hammer, causing the pin sleeve to be damaged, the assembly accuracy and position are difficult to control, the efficiency is low and the installation quality is difficult to ensure.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0006] A locomotive hook round pin sleeve disassembly and assembly tool comprises an upper round pin sleeve lifting pick, a bolt pushing rod and a lower round pin sleeve lifting pick; the upper end of the upper round pin sleeve lifting pick is arranged as a pushing head, the lower part of the upper round pin sleeve lifting pick abuts against the upper end of the bolt pushing rod and is rotatably connected with each other, the lower part of the bolt pushing rod is arranged with a threaded part, the lower round pin sleeve lifting pick is sleeved on the bolt pushing rod and is screwed with the threaded part, and the outer periphery of the lower round pin sleeve lifting pick is arranged with a first step surface.

[0007] Furthermore, a first wrench clamping surface is provided on the outer peripheral side of the bolt push rod, and a second wrench clamping surface is provided on the outer peripheral side of the lower round pin sleeve push pick.

[0008] Furthermore, it also includes a positioning rod, the lower end of which can be coaxially installed on the upper end of the upper round pin sleeve top pick, the upper end of the positioning rod is provided with a positioning column matching the inner hole of the round pin sleeve, and the middle part of the positioning rod is provided with a second step surface that can abut against the lower end of the round pin sleeve.

[0009] Furthermore, a top hole opening downward is arranged at the lower part of the upper round pin sleeve top pick, and the top head can be rotatably inserted into the top hole and abut against the top of the top hole.

[0010] Furthermore, it also includes an anti-slip bolt, the outer periphery of the upper round pin sleeve top pick is provided with a screw hole connected to the top hole, the outer periphery of the top head is provided with an annular groove, one end of the anti-slip bolt can be screwed into the top hole through the screw hole, and the anti-slip bolt can be stuck in the annular groove.

[0011] Furthermore, the top of the top head is a raised arc top, and the top of the top hole is a concave arc shape that matches the arc top of the top head.

[0012] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. The utility model is applied to the disassembly and assembly of the couplers of the enterprise's GK and DF type diesel locomotives. When in use, the upper or lower coupler pin hole is positioned so that the pin sleeve at the upper part is pushed out upward, or the pin sleeve at the lower part is pushed out downward, thereby realizing the installation and removal of the pin sleeve; and no special skills or professional training are required, and even personnel without relevant experience can quickly master the use of the tool; because the tool can accurately position the pin sleeve and increase the pressure, the shaft sleeve can be quickly and accurately pressed into the pin sleeve hole, thereby ensuring the high efficiency of the installation efficiency; through the accurate positioning of the tool and the efficient installation method, the accuracy and quality of the pin sleeve and the shaft sleeve can be guaranteed, making the entire installation process more reliable and stable, the tool adopts practical elements, such as positioning points and wrenches, etc., and has a simple structure, so the failure rate can be reduced and the reliability can be improved; by adopting the method of converting rotational motion into linear motion, the traditional installation method of the round pin sleeve is to embed the round pin sleeve into the matching by hammering, which causes the pin sleeve to be damaged, the assembly accuracy and position are difficult to control, the efficiency is low, and the installation quality is difficult to guarantee. Technical problems.

[0014] 2. The utility model is provided with a positioning rod, so that the positioning column on the upper part of the positioning rod can be directly inserted into the pin sleeve, thereby improving the accuracy and reducing the possibility of displacement of the top pick of the upper round pin sleeve.

[0015] 3. The utility model can realize the rotational abutment between the upper round pin sleeve top pick and the bolt top rod through the provision of the anti-drop bolt and the clamping groove, and is easy to disassemble and assemble, and has a simple and reliable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the utility model in use;

[0018] Figure 3 It is a side view of the bolt push rod of the utility model.

[0019] In the accompanying drawings, 1-upper round pin sleeve top pick, 2-bolt top rod, 3-lower round pin sleeve top pick, 4-positioning rod, 5-anti-slip bolt, 6-hook, 7-round pin sleeve, 11-top head, 21-threaded part, 22-first wrench clamping surface, 23-annular groove, 31-first step surface, 32-second wrench clamping surface, 41-positioning column, 42-second step surface. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is further described below with reference to the accompanying drawings.

[0021] In the description of the present invention, it should be understood that the terms "center", "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] See also Figures 1 to 3 A locomotive hook round pin sleeve disassembly and assembly tool, comprising an upper round pin sleeve top pick 1, a bolt top rod 2, a lower round pin sleeve top pick 3 and a positioning rod 4; the upper end of the upper round pin sleeve top pick 1 is provided with a top head 11, the lower part of the upper round pin sleeve top pick 1 abuts against the upper end of the bolt top rod 2 and can be rotatably connected with each other, the lower part of the bolt top rod 2 is provided with a threaded portion 21, the lower round pin sleeve top pick 3 is sleeved on the bolt top rod 2 and is screwed with the threaded portion 21, and the outer periphery of the lower round pin sleeve top pick 3 is provided with a first step surface 31. The lower end of the positioning rod 4 can be coaxially mounted on the upper end of the upper round pin sleeve top pick 1, the upper end of the positioning rod 4 is provided with a positioning column 41 matching the inner hole of the round pin sleeve 7, and the middle part of the positioning rod 4 is provided with a second step surface 42 that can abut against the lower end of the round pin sleeve 7.

[0025] In this embodiment, a first wrench clamping surface 22 is provided on the outer circumference of the bolt push rod 2, and a second wrench clamping surface 32 is provided on the outer circumference of the lower round pin sleeve pick 3. The first wrench clamping surface 22 and the second wrench clamping surface 32 are not arranged in pairs and in parallel. By providing a pair of wrench clamping surfaces, the wrench can directly clamp the bolt push rod 2 or the lower round pin sleeve pick 3, so that the bolt push rod 2 and the lower round pin sleeve pick 3 can rotate relative to each other, thereby realizing the downward or upward movement of the round pin sleeve 7 of the locomotive coupler 6.

[0026] In this embodiment, the upper round pin sleeve top pick 1 is provided with a top hole opening downwardly at the lower part, and the top head 11 can be rotatably installed in the top hole and abut against the top of the top hole. Specifically, the top of the top head 11 is a raised arc top, and the top of the top hole is a concave arc shape matching the arc top of the top head 11.

[0027] In this embodiment, an anti-drop bolt 5 is also included, a screw hole communicating with the top hole is arranged on the outer periphery of the upper round pin sleeve top pick 1, and an annular clamping groove 23 is arranged on the outer periphery of the top head 11, and one end of the anti-drop bolt 5 can be screwed into the top hole through the screw hole, and the anti-drop bolt 5 can be clamped in the annular clamping groove 23. Through the arrangement of the anti-drop bolt 5 and the clamping groove, the upper round pin sleeve top pick 1 and the bolt top rod 2 can be rotatably abutted, and it is easy to disassemble and assemble, and the structure is simple and reliable.

[0028] When in use, take the installation and removal of the round pin sleeve 7 of the upper coupler 6 as an example, the steps are as follows:

[0029] 1. Use the shaft hole of the coupler 6 or the round pin sleeve installation hole at the bottom for positioning, insert the lower end of the bolt push rod 2 into the pin hole of the coupler 6, and place the round pin sleeve 7 to be installed on the upper end of the positioning rod 4;

[0030] 2. Then, the bolt push rod 2 and the lower round pin sleeve pick 3 are rotated relative to each other, so that the lower round pin sleeve pick 3 moves downward, so that the first step surface 31 abuts against the lower component of the coupler 6, and the round pin sleeve 7 is aligned with the round pin sleeve installation hole;

[0031] 3. Use two wrenches to clamp the first wrench clamping surface 22 and the second wrench clamping surface 32 respectively, so that the bolt push rod 2 and the lower round pin sleeve pick 3 rotate relative to each other, so that the bolt push rod 2 moves upward to drive the upper round pin sleeve pick 1 and the positioning rod 4 to move upward, and push the round pin sleeve 7 into the upper mounting hole to complete the installation of the upper round pin sleeve 7.

[0032] 4. When the round pin sleeve 7 of the hook 6 at the upper part is removed, based on the state at the end of the above step 3, continue to rotate the bolt push rod 2 and the lower round pin sleeve pick 3 relative to each other, so that the bolt push rod 2 moves upward to drive the upper round pin sleeve pick 1 and the positioning rod 4 to move upward, and the round pin sleeve 7 is pushed out from the upper part of the mounting hole.

[0033] The above description is a detailed description of the preferred feasible embodiment of the utility model, but the embodiment is not used to limit the scope of the patent application of the utility model. All equivalent changes or modified changes completed under the technical spirit suggested by the utility model should fall within the patent scope covered by the utility model.

Claims

1. A locomotive hook round pin sleeve disassembly and assembly tool, characterized in that: It includes an upper round pin sleeve top pick, a bolt top rod and a lower round pin sleeve top pick; the upper end of the upper round pin sleeve top pick is arranged as a top head, the lower part of the upper round pin sleeve top pick abuts against the upper end of the bolt top rod and is rotatably connected to each other, the lower part of the bolt top rod is arranged with a threaded part, the lower round pin sleeve top pick is sleeved on the bolt top rod and is screwed with the threaded part, and the outer periphery of the lower round pin sleeve top pick is arranged with a first step surface.

2. A locomotive hook round pin sleeve disassembly and assembly tool according to claim 1, characterized in that: A first wrench clamping surface is arranged on the outer peripheral side of the bolt push rod, and a second wrench clamping surface is arranged on the outer peripheral side of the lower round pin sleeve push pick.

3. A locomotive hook round pin sleeve disassembly and assembly tool according to claim 1, characterized in that: It also includes a positioning rod, the lower end of which can be coaxially installed on the upper end of the upper round pin sleeve top pick, the upper end of the positioning rod is provided with a positioning column matching the inner hole of the round pin sleeve, and the middle part of the positioning rod is provided with a second step surface that can abut against the lower end of the round pin sleeve.

4. A locomotive hook round pin sleeve disassembly and assembly tool according to claim 1, characterized in that: A top hole opening downward is arranged at the lower part of the upper round pin sleeve top pick, and the top head can be rotatably installed in the top hole and abut against the top of the top hole.

5. A locomotive hook round pin sleeve disassembly and assembly tool according to claim 4, characterized in that: It also includes an anti-slip bolt. The outer periphery of the upper round pin sleeve top pick is provided with a screw hole connected to the top hole. The outer periphery of the top head is provided with an annular groove. One end of the anti-slip bolt can be screwed into the top hole through the screw hole, and the anti-slip bolt can be stuck in the annular groove.

6. A locomotive hook round pin sleeve disassembly and assembly tool according to claim 4, characterized in that: The top of the top head is a raised arc top, and the top of the top hole is a concave arc shape matching the arc top of the top head.

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