Disassembling and assembling machine for cylinder sleeve assembly of GK1c diesel locomotive

Abstract

A disassembling and assembling machine for a cylinder sleeve assembly of a GK1c diesel locomotive comprises a disassembling and assembling table, the lower end of the disassembling and assembling table is connected with a supporting frame, the upper end of the disassembling and assembling table is connected with a rack, a disassembling and assembling hole is formed in the center of the disassembling and assembling table in the vertical direction, a driving mechanism is arranged on the rack, the movable end of the driving mechanism is connected with a pressing plate, and the pressing plate is of a cylindrical structure and located over the disassembling and assembling hole. The driving mechanism is connected with a hydraulic station, the hydraulic station controls the driving mechanism to enable the pressing plate to be far away from or close to the disassembling and assembling hole in the vertical direction, the diameter of the pressing plate is smaller than the inner diameter of the water jacket, and the diameter of the pressing plate is larger than the inner diameter of the cylinder sleeve. The guide part is of a chamfer structure or a fillet structure. According to the cylinder sleeve assembly, the cylinder sleeve and the water sleeve in the cylinder sleeve assembly can be disassembled and assembled conveniently, labor intensity is reduced, automatic calibration and automatic positioning are achieved during disassembly, the cylinder sleeve assembly is prevented from deviating from the axis, stress is even during disassembly, and part deformation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder liner assembly disassembly and assembly equipment, and particularly relates to a disassembly and assembly machine for the cylinder liner assembly of a GK1c diesel locomotive. Background Art

[0002] The cylinder liner and piston ring of a diesel locomotive are worn for a long time, resulting in an increase in the inner diameter and ovality of the cylinder liner; the water jacket is corroded by water for a long time, resulting in cavitation corrosion on the inner wall of the water jacket, and the aging of the sealing ring causes leakage. To solve these problems, it is necessary to disassemble, inspect, and assemble the cylinder liner and water jacket of the diesel locomotive, repair the cavitated water jacket, and replace the scrapped cylinder liner, water jacket, and sealing ring; among them, the cylinder liner assembly mainly includes a cylinder liner and a water jacket located outside the cylinder liner. A cooling area is provided between the cylinder liner and the water jacket. The side wall of the water jacket is provided with a water inlet hole communicating with the lower end of the cooling area. The upper end side wall of the cylinder liner is provided with a limiting portion, and a guide ring is connected to the outer edge of the limiting portion. The upper end face of the water jacket abuts against the lower end face jointly formed by the limiting portion and the guide ring. A sleeve is arranged on the guide ring along the vertical direction, and the lower end of the sleeve extends to the inner wall of the water jacket and communicates with the upper end of the cooling area. During disassembly and assembly, the cylinder liner and water jacket are usually disassembled and assembled by means of hammering. Multiple people operate. One person holds a 50-mm copper bar and pads it on the outer edge of the water jacket, and the other person swings a hammer (24 pounds) to strike the copper bar. The hammering point is patched until the water jacket falls off. The method is the same during assembly. During the disassembly and assembly process, people are constantly replaced to strike the hammer, which is extremely easy to cause accidents such as hitting off-target and hurting hands, and the flying of copper bar foam hurting people, and it is also easy to damage the workpiece. The damage to the workpiece is mainly manifested in the deformation of the water jacket conduit hole, and it cannot be installed into the diesel engine body during loading; during the hammering process, due to uneven force, the O-ring for sealing engine oil on the cylinder liner is sheared, and it is necessary to disassemble again and replace the O-ring, resulting in frequent rework and injury incidents. Summary of the Utility Model

[0003] The purpose of the utility model is to: to solve the above problems, a disassembly and assembly machine for the cylinder liner assembly of a GK1c diesel locomotive is proposed, which is convenient for the disassembly and assembly of the cylinder liner and water jacket in the cylinder liner assembly, and the force is uniform during the disassembly and assembly process, avoiding injury accidents and improving efficiency.

[0004] To achieve the above purpose, the following technical solutions are adopted: A disassembly and assembly machine for the cylinder liner assembly of a GK1c diesel locomotive includes a disassembly and assembly table. The lower end of the disassembly and assembly table is connected with a support frame. The upper end of the disassembly and assembly table is connected with a frame. A disassembly and assembly hole is arranged in the center of the disassembly and assembly table along the vertical direction. A driving mechanism is arranged on the frame. The movable end of the driving mechanism is connected with a pressing plate. The pressing plate is of a cylindrical structure. The pressing plate is located directly above the disassembly and assembly hole. The driving mechanism is connected with a hydraulic station. The hydraulic station controls the driving mechanism to make the pressing plate move away from or close to the disassembly and assembly hole along the vertical direction.

[0005] Preferably, the diameter D4 of the pressing plate is smaller than the inner diameter D2 of the water jacket, and the diameter D4 of the pressing plate is larger than the inner diameter D1 of the cylinder liner.

[0006] Preferably, a guide post is connected to the lower end of the pressing plate.

[0007] Preferably, the guide post is in sliding fit with the inner diameter of the cylinder liner.

[0008] Preferably, a guiding portion is provided at the connection between the lower end surface of the guide post and the cylindrical surface of the guide post, and the guiding portion is a chamfer structure or a rounded corner structure.

[0009] Preferably, the driving mechanism is a multi-stage hydraulic cylinder.

[0010] The beneficial effects achieved by the present utility model:

[0011] A disassembling and assembling machine for a cylinder liner assembly of a GK1c diesel locomotive according to the present utility model facilitates the disassembly and installation of the cylinder liner and the water jacket in the cylinder liner assembly, avoids personal injury accidents, reduces the labor intensity of operators, and prevents damage or deformation of the cylinder liner assembly. By providing a guide post and a guiding portion, the cylinder liner assembly is automatically calibrated and positioned during installation and disassembly, and in combination with the disassembly and assembly holes, the cylinder liner assembly is prevented from deviating from the axis, so that the force is evenly distributed during disassembly and assembly, further preventing deformation. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of a disassembling and assembling machine for a cylinder liner assembly of a GK1c diesel locomotive according to the present utility model.

[0013] Figure 2 is a schematic structural diagram of the cylinder liner assembly.

[0014] Figure 3 is a schematic structural diagram of the disassembly fit between the cylinder liner assembly and the disassembly and assembly holes.

[0015] Figure 4 is a schematic structural diagram of the disassembly process of the cylinder liner assembly.

[0016] Figure 5 is a schematic structural diagram of the installation process of the cylinder liner assembly.

[0017] Figure 6 is a schematic structural diagram of the connection between the pressing plate and the guide post. Detailed Embodiments

[0018] The following clearly and completely describes the technical solutions in the embodiments of the present utility model with reference to the drawings. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0020] Refer to the attached Figure 1-6 , a disassembling and assembling machine for the cylinder liner assembly of a GK1c diesel locomotive, comprising a disassembly and assembly table 1, a support frame 2 is connected to the lower end of the disassembly and assembly table 1, a frame 3 is connected to the upper end of the disassembly and assembly table 1, a disassembly and assembly hole 4 is arranged in the center of the disassembly and assembly table 1 along the vertical direction, a driving mechanism 5 is arranged on the frame 3, the driving mechanism 5 is a multi-stage hydraulic cylinder, a pressing plate 6 is connected to the movable end of the driving mechanism 5, the pressing plate 6 is of a cylindrical structure, the pressing plate 6 is located directly above the disassembly and assembly hole 4, the driving mechanism 5 is connected to a hydraulic station 7, and the hydraulic station 7 controls the driving mechanism 5 to make the pressing plate 6 move away from or close to the disassembly and assembly hole 4 along the vertical direction. Wherein, the aperture d3 of the disassembly and assembly hole 4 is equal to the inner diameter d1 of the guide ring, and under the action of the guide ring, one end of the cylinder liner a2 adjacent to the guide ring is positioned and placed in the disassembly and assembly hole 4. During disassembly, the driving mechanism 5 is used to push the pressing plate 6 downward to make the pressing plate 6 push the cylinder liner a2 out of the water jacket a1; during installation, the aperture d3 of the disassembly and assembly hole 4 is equal to the outer diameter d2 of the lower half section of the water jacket a1, so that the lower half section of the water jacket is located in the disassembly and assembly hole 4, while the upper half section of the water jacket restricts its movement. The driving mechanism 5 is used to push the pressing plate 6 downward to make the cylinder liner a2 located at the upper end of the water jacket a1 gradually move downward and finally achieve a sealing fit. In this way, it is convenient for the disassembly and installation of the cylinder liner and the water jacket in the cylinder liner assembly, avoiding personal injury accidents, reducing the labor intensity of the operators, and the connection between the driving mechanism 5, that is, the multi-stage hydraulic cylinder and the hydraulic station 7, is convenient for the operation of the staff.

[0021] The diameter D4 of the pressing plate 6 is smaller than the inner diameter D2 of the water jacket a1, and the diameter D4 of the pressing plate 6 is larger than the inner diameter D1 of the cylinder liner a2, so that the pressing plate 6 can push the cylinder liner a2 for disassembly or installation.

[0022] Wherein, a guide post 8 is connected to the lower end of the pressing plate 6, and the diameter D3 of the guide post 8 is smaller than or equal to the inner diameter D1 of the cylinder liner a2.

[0023] The guide post 8 is in sliding fit with the inner diameter of the cylinder liner a2, that is, the diameter D3 of the guide post 8 is equal to the inner diameter D1 of the cylinder liner a2.

[0024] A guiding portion is provided at the connection between the lower end face of the guiding column 8 and the cylindrical surface of the guiding column 8. The guiding portion is a chamfer structure or a fillet structure, so that the cylinder liner assembly a can be automatically calibrated and positioned during installation and disassembly. In combination with the disassembly and assembly holes 4, the cylinder liner assembly a is prevented from deviating from the axis, so that the force is evenly distributed during disassembly and assembly, and deformation is avoided.

[0025] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, making equivalent replacements or changes, shall be covered by the protection scope of the present invention.

Claims

1. A GK1c diesel locomotive cylinder liner assembly disassembly and assembly machine, comprising a disassembly and assembly platform (1), the lower end of the disassembly and assembly platform (1) is connected to a support frame (2), the upper end of the disassembly and assembly platform (1) is connected to a frame (3), characterized in that: The center of the assembly and disassembly platform (1) is provided with an assembly and disassembly hole (4) in the vertical direction. The frame (3) is provided with a driving mechanism (5). The movable end of the driving mechanism (5) is connected with a pressing plate (6). The pressing plate (6) is a cylindrical structure. The pressing plate (6) is located directly above the assembly and disassembly hole (4). The driving mechanism (5) is connected with a hydraulic station (7). The hydraulic station (7) controls the driving mechanism (5) to move the pressing plate (6) away from or close to the assembly and disassembly hole (4) in the vertical direction.

2. A GK1c diesel locomotive cylinder liner assembly disassembly and assembly machine according to claim 1, characterized in that: The diameter of the pressure plate (6) is smaller than the inner diameter of the water jacket, and the diameter of the pressure plate (6) is larger than the inner diameter of the cylinder jacket.

3. A GK1c diesel locomotive cylinder liner assembly disassembly and assembly machine according to claim 1, characterized in that: The lower end of the pressing plate (6) is connected to a guide column (8).

4. A GK1c diesel locomotive cylinder liner assembly disassembly and assembly machine according to claim 3, characterized in that: The guide column (8) is in sliding fit with the inner diameter of the cylinder sleeve.

5. A GK1c diesel locomotive cylinder liner assembly disassembly and assembly machine according to claim 3 or 4, characterized in that: A guide portion is provided at the connection between the lower end surface of the guide column (8) and the cylindrical surface of the guide column (8), and the guide portion is a chamfered structure or a rounded structure.

6. A GK1c diesel locomotive cylinder liner assembly disassembly and assembly machine according to claim 1, characterized in that: The driving mechanism (5) is a multi-stage hydraulic cylinder.

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