190 type diesel engine rocker arm copper bush and shaft dismounting tool

Abstract

The utility model discloses a dismounting tool for a copper bush and a shaft of a rocker arm of a 190 type diesel engine, which relates to the technical field of regular inspection of locomotives and comprises a base, a connecting rod, a workpiece clamp, a pressing sleeve tool and a telescopic piece. The workpiece clamp is fixedly connected with the end, away from the base, of the connecting rod and used for fixing the rocker arm, the workpiece clamp is provided with a through U-shaped opening, and the U-shaped opening is fixed to a rocker arm copper sleeve of the rocker arm of the workpiece clamp and corresponds to the shaft. The pressing sleeve tool is used for abutting against a rocker arm copper sleeve and a shaft of the rocker arm. The fixed end of the telescopic piece is used for being connected to the base, the movable end of the telescopic piece is used for being connected with the pressing sleeve tool, the movable end can drive the pressing sleeve tool to move so as to eject the rocker arm copper sleeve and the shaft of the rocker arm out of the rocker arm, the structure is simple, operation is convenient, the copper sleeve rocker arm is effectively prevented from being damaged, and safety during operation is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of periodic inspection of locomotives, in particular to a rocker arm copper sleeve and shaft disassembly and assembly tool for a 190 type diesel engine. Background Art

[0002] The rocker arm copper sleeve is an indispensable and important component in the rocker arm mechanism of heavy-duty engines. It usually protects the machine parts during the relative movement of the rocker arm and the shaft, prevents the loss of the machine parts due to long-term friction, reduces the wear between parts, and prolongs the service life of the parts. At present, the copper sleeve contacts different parts on the inside and outside of the working process, so the existing rocker arm copper sleeve is usually a double-layer structure and the materials of the double-layer structure are also different. This kind of rocker arm copper sleeve is not only expensive to manufacture, but also has a very troublesome manufacturing process. The structure is complex. This kind of rocker arm copper sleeve is made of double-layer materials. The materials that stick together are easy to fall off and damage during long-term high-frequency working, causing chaos in the valve mechanism of the locomotive diesel engine and affecting the normal operation of the locomotive. It must be replaced during the locomotive maintenance process. When replacing the rocker arm copper sleeve and the shaft, due to the irregular shape of the intake and exhaust valve rocker arm seat, the locking is not firm on the bench vise during disassembly and reassembly. It is very easy to drop the machine parts and hurt people during disassembly and reassembly. Due to the loose locking during reassembly. The reinstallation process is unstable, and the new copper sleeve is prone to damage with a certain damage rate, which is about 30%. Utility Model Content

[0003] The purpose of the utility model is to provide a 190 diesel engine rocker arm copper sleeve and shaft disassembly and assembly tool to solve the problems existing in the above-mentioned prior art. The utility model has a simple structure, is easy to operate, effectively avoids damage to the copper sleeve rocker arm, and effectively improves safety during operation.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a 190 diesel engine rocker arm copper sleeve and shaft disassembly and assembly tool, comprising: a base, a connecting rod, a workpiece clamp, a sleeve pressing tool and a telescopic piece, the connecting rod is fixedly connected to the top of the base; the workpiece clamp is fixedly connected to an end of the connecting rod away from the base, and the workpiece clamp is used to fix the rocker arm, the workpiece clamp is provided with a through U-shaped opening, the U-shaped opening is fixed to the rocker arm copper sleeve and the shaft of the rocker arm of the workpiece clamp and is correspondingly arranged; the sleeve pressing tool is used to press against the rocker arm copper sleeve and the shaft of the rocker arm; the fixed end of the telescopic piece is used to be connected to the base, the movable end of the telescopic piece is used to be connected to the sleeve pressing tool, and the movable end can drive the sleeve pressing tool to move so as to eject the rocker arm copper sleeve and the shaft of the rocker arm from the rocker arm.

[0006] Preferably, the workpiece fixture comprises a receiving groove, the receiving groove is used to place the rocker arm, and the U-shaped opening is connected to the receiving groove.

[0007] Preferably, the sleeve pressing tool includes an embedding part and a tightening part, the embedding part and the tightening part are integrally connected, the embedding part is used to embed in the inner side of the rocker arm copper sleeve of the rocker arm, and the tightening part is used to tighten the rocker arm copper sleeve and one end of the shaft of the rocker arm.

[0008] Preferably, the diameter of the embedded portion is smaller than the diameter of the rocker arm copper sleeve of the rocker arm, and the diameter of the tightening portion is the same as the diameter of the rocker arm copper sleeve of the rocker arm.

[0009] Preferably, the telescopic member is a jack, the jack is used to be placed on the base, and the telescopic rod of the jack is used to tighten the tightening part.

[0010] Compared with the prior art, the utility model has achieved the following technical effects:

[0011] The utility model provides a 190 diesel engine rocker arm copper sleeve and shaft disassembly and assembly tool. A base, a connecting rod and a workpiece fixture are arranged, and a telescopic part is arranged on the base. The rocker arm copper sleeve and the shaft of the rocker arm are fixed on the workpiece fixture, and a sleeve pressing tool is used to press the rocker arm copper sleeve and the shaft of the rocker arm tightly. The sleeve pressing tool is driven by the extension of the telescopic part to push the rocker arm copper sleeve and the shaft out of the rocker arm. The utility model has a simple structure and is easy to operate. The damage of the copper sleeve rocker arm can be effectively avoided, and the safety during operation can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 A schematic diagram of the structure of the rocker arm copper sleeve and shaft disassembly and assembly tool for a 190 diesel engine provided by the utility model;

[0014] Figure 2 A schematic diagram of the structure of the sleeve pressing tool in the rocker arm copper sleeve and shaft disassembly and assembly tool for a 190 diesel engine provided by the utility model;

[0015] Figure 3 It is a structural schematic diagram of the rocker arm;

[0016] In the figure: 1. rocker arm copper sleeve and shaft; 2. rocker arm; 3. sleeve pressing tool; 31. embedding part; 32. tightening part; 4. jack; 5. base; 6. connecting rod; 7. workpiece clamp. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] The purpose of the utility model is to provide a 190 diesel engine rocker arm copper sleeve and shaft disassembly and assembly tool to solve the problems existing in the above-mentioned prior art. The utility model has a simple structure, is easy to operate, effectively avoids damage to the copper sleeve rocker arm, and effectively improves safety during operation.

[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] The utility model provides a 190 diesel engine rocker arm copper sleeve and shaft disassembly and assembly tool, such as Figure 1 As shown, it includes: a base 5, a connecting rod 6, a workpiece fixture 7, a pressing tool 3 and a telescopic member, the connecting rod 6 is fixedly connected to the top of the base 5; the workpiece fixture 7 is fixedly connected to the end of the connecting rod 6 away from the base 5, and the workpiece fixture 7 is used to fix the rocker arm 2, the workpiece fixture 7 is provided with a through U-shaped opening, and the U-shaped opening is fixed to the rocker arm copper sleeve and the shaft 1 of the rocker arm 2 of the workpiece fixture 7. The pressing tool 3 is used to press the rocker arm copper sleeve and the shaft 1 of the rocker arm 2; the fixed end of the telescopic member is used to be connected to the base 5, and the movable end of the telescopic member is used to press The sleeve tool 3 is connected, and the movable end can drive the pressing tool 3 to move to push the rocker arm copper sleeve and shaft 1 of the rocker arm 2 out of the rocker arm 2; by setting a base 5, a connecting rod 6 and a workpiece clamp 7, and setting a telescopic part on the base 5, the rocker arm copper sleeve and shaft 1 of the rocker arm 2 are fixed on the workpiece clamp 7, and the pressing tool 3 is used to press the rocker arm copper sleeve and shaft 1 of the rocker arm 2 tightly, and the extension of the telescopic part drives the pressing tool 3 to push the rocker arm copper sleeve and shaft 1 out of the rocker arm 2. The structure is simple and easy to operate, which can effectively avoid damage to the copper sleeve rocker arm 2 and effectively improve the safety during operation.

[0021] In a preferred embodiment, the workpiece fixture 7 includes a receiving groove, which is used to place the rocker arm 2. The U-shaped opening is connected to the receiving groove. The structure is simple and the rocker arm 2 can be fixed by placing it in the receiving groove.

[0022] In a preferred embodiment, the pressing tool 3 includes an embedding portion 31 and a tightening portion 32, and the embedding portion 31 and the tightening portion 32 are integrally connected. The embedding portion 31 is used to be embedded in the inner side of the copper sleeve of the rocker arm 2, and the tightening portion 32 is used to tighten the rocker arm copper sleeve of the rocker arm 2 and one end of the shaft 1. The structure is simple and can prevent the pressing tool 3 from being displaced or slipping out when tightening the rocker arm 2 copper sleeve of the rocker arm 2, causing safety hazards.

[0023] In a preferred embodiment, the diameter of the embedded portion is smaller than the diameter of the copper sleeve of the rocker arm 2, and the diameter of the tightening portion is the same as the diameter of the copper sleeve of the rocker arm 2. The structure is simple and can be stably fixed.

[0024] In a preferred embodiment, the telescopic member is a jack 4, which is placed on a base 5, and a telescopic rod of the jack 4 is used to tighten the tightening part, which has a simple structure, is easy to operate, and is easy to obtain materials.

[0025] Operation process: when in use, place the rocker arm 2 into the U-shaped opening position of the workpiece fixture 7, insert the pressing tool 3 from the bottom, and place the jack 4 at the bottom of the pressing tool 3. By raising the jack 4, the copper sleeve of the rocker arm 2 can be smoothly pressed out. When installing the copper sleeve, align the copper sleeve with the hole of the rocker arm 2 from the bottom. According to the above process, the copper sleeve can be easily assembled into the inside of the rocker arm 2. At the same time, the rocker arm 2 shaft inside the copper sleeve can also be pressed in or out, which prevents damage to the copper sleeve of the rocker arm 2 during the assembly process and improves work efficiency.

[0026] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A 190 diesel engine rocker arm copper sleeve and shaft disassembly and assembly tool, characterized in that: include: Base, A connecting rod, the connecting rod is fixedly connected to the top of the base; A workpiece clamp, the workpiece clamp is fixedly connected to one end of the connecting rod away from the base, and the workpiece clamp is used to fix the rocker arm, the workpiece clamp is provided with a through U-shaped opening, and the U-shaped opening is fixed to the rocker arm copper sleeve and the shaft of the rocker arm of the workpiece clamp correspondingly arranged; A sleeve pressing tool, the sleeve pressing tool is used to press the rocker arm copper sleeve and the shaft of the rocker arm tightly; and A telescopic part, wherein the fixed end of the telescopic part is used to be connected to the base, and the movable end of the telescopic part is used to be connected to the pressing tool, and the movable end can drive the pressing tool to move to eject the rocker arm copper sleeve and shaft of the rocker arm from the rocker arm.

2. The 190 type diesel engine rocker arm copper sleeve and shaft disassembly and assembly tool according to claim 1 is characterized in that: The workpiece fixture comprises a receiving groove, the receiving groove is used to place the rocker arm, and the U-shaped opening is communicated with the receiving groove.

3. The 190 type diesel engine rocker arm copper sleeve and shaft disassembly and assembly tool according to claim 1 is characterized in that: The sleeve pressing tool includes an embedding part and a tightening part, the embedding part and the tightening part are integrally connected, the embedding part is used to be embedded in the inner side of the rocker arm copper sleeve of the rocker arm, and the tightening part is used to tighten the rocker arm copper sleeve and one end of the shaft of the rocker arm.

4. The 190 type diesel engine rocker arm copper sleeve and shaft disassembly and assembly tool according to claim 3 is characterized in that: The diameter of the embedded portion is smaller than the diameter of the rocker arm copper sleeve of the rocker arm, and the diameter of the tightening portion is the same as the diameter of the rocker arm copper sleeve of the rocker arm.

5. The 190 type diesel engine rocker arm copper sleeve and shaft disassembly and assembly tool according to claim 4 is characterized in that: The telescopic member is a jack, and the jack is used to be placed on the base, and the telescopic rod of the jack is used to tighten the tightening part.

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