Disassembling structure of engine shock absorber

Abstract

The utility model relates to an engine shock absorber dismounting structure which comprises a shaft body, an assembly body installed outside the shaft body and a sealing end plate. The sealing end plate is located on the outer side of the end of the shaft body and seals the connecting position of the shaft body and the assembly body. The sealing end plate is detachably connected with the assembly body; the oil cylinder is reasonable in structural design, a closed space is formed outside the shaft body by arranging the sealing end plate, and the closed space can gather hydraulic oil to form the oil cylinder applying force to the end part of the shaft body in the hydraulic dismounting action; the combined use effect of the hydraulic pump assembly and the hydraulic cylinder assembly in the prior art can be achieved through one set of hydraulic pump assembly, hydraulic pressure of the structure is synchronously applied in the hydraulic disassembly action, the surface of a product cannot be strained, other tools are not needed for physical disassembly of the product, the use process is safer and more reliable, and the use cost is reduced. And the dismounting process is smoother and easy to operate.

Description

Technical Field

[0001] The utility model relates to the field of engine supporting tool equipment, in particular to a disassembly structure of an engine shock absorber. Background Art

[0002] With the rapid development of China's shipbuilding industry, the accompanying demands have been increasing year by year. Especially for the maintenance work of engines, when disassembling the shock absorber of the engine, it is necessary to connect a hydraulic pump assembly to the anti-rotation sleeve or the shock absorber base of the shock absorber, and then install another set of hydraulic cylinder assemblies outside the shaft head where the shock absorber is installed. A gap filled with hydraulic oil is formed between the outer wall of the shaft body and the hole wall of the anti-rotation sleeve or the shock absorber base through the hydraulic pump. At this time, it can meet the sliding of the anti-rotation sleeve or the shock absorber base, and then the hydraulic cylinder assembly stretches at the end to disassemble the anti-rotation sleeve or the shock absorber base. However, during this process, due to the asynchronous operation of the hydraulic pump assembly and the hydraulic cylinder assembly, scratches are generated on the product surface, resulting in a reduction in the surface accuracy of the product, which is not conducive to its interference fit effect. Content of the Utility Model

[0003] In order to solve the deficiencies in the prior art, the utility model provides a disassembly structure of an engine shock absorber, which completes the entire disassembly action while ensuring that the surface structure of the product is not damaged.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] A disassembly structure of an engine shock absorber includes a shaft body and a component body installed outside it. It is characterized in that it further includes a sealing end plate;

[0006] The sealing end plate is located outside the end of the shaft body and seals the connection position between the shaft body and the component body;

[0007] The sealing end plate is detachably connected to the component body.

[0008] The component body is an anti-rotation sleeve or a shock absorber base, and an oil injection hole for connecting with a hydraulic pump assembly is provided on the component body.

[0009] A cavity part is provided on the surface of the sealing end plate close to the shaft body, and the cavity part communicates with the connection position between the shaft body and the component body.

[0010] A sealing member is provided on the surface of the sealing end plate close to the shaft body. The sealing member is annular and is located outside the connection position between the shaft body and the component body. The sealing member abuts against the sealing end plate and the component body respectively.

[0011] A sealing groove for accommodating the sealing member is provided on the surface of the sealing end plate.

[0012] The edge of the sealing end plate is provided with a plurality of through holes, and the through holes are connected and fixed to the component body through bolt assemblies.

[0013] A relief hole is also provided on the sealing end plate, and the relief hole is inclinedly distributed.

[0014] The relief hole is located outside the seal of the sealing end plate.

[0015] The beneficial effects of the present utility model are as follows: The structure is reasonably designed. By arranging the sealing end plate, a closed space is formed outside the shaft body. During the hydraulic disassembly operation, the closed space can accumulate hydraulic oil to form an oil cylinder that applies force to the end of the shaft body. The combined use effect of the hydraulic pump assembly and the hydraulic cylinder assembly in the prior art can be achieved through a set of hydraulic pump assemblies. Moreover, the hydraulic pressure is synchronously applied during the hydraulic disassembly operation, which will not cause scratches on the product surface, and there is no need to use other tools for physical disassembly of the product. The use process is safer and more reliable, and the disassembly process is smoother and easier to operate. Description of the Drawings

[0016] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0017] Figure 1 It is a front view structural schematic diagram of a shaft body and a component body in the prior art.

[0018] Figure 2 It is a side view structural schematic diagram of a shaft body and a component body in the prior art.

[0019] Figure 3 It is a side view structural schematic diagram of the first embodiment.

[0020] Figure 4 It is a side view structural schematic diagram of the first embodiment (partial cross-section of the sealing end plate).

[0021] Figure 5 It is a side view structural schematic diagram during the hydraulic disassembly operation of the first embodiment.

[0022] Figure 6 It is a side view structural schematic diagram at the end of the hydraulic disassembly operation of the first embodiment.

[0023] Figure 7 It is a side view structural schematic diagram of the second embodiment.

[0024] Figure 8 It is a front view structural schematic diagram of the sealing end plate in the second embodiment.

[0025] In the figure: shaft body 100, anti-rotation shaft sleeve 200, shock absorber base 300, shock absorber groove body 301, oil injection hole 400, sealing end plate 500, bolt assembly 501, cavity part 502, seal 503, relief hole 504, hydraulic pump assembly 600, hydraulic oil 700. Detailed implementation mode

[0026] The following specific embodiments illustrate the implementation mode of the present invention. Those skilled in this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0027] Embodiment 1

[0028] According to Figures 3 to 6 As shown: This embodiment provides a disassembly structure for an engine shock absorber, including a shaft body 100 and a component body installed outside it, as well as a sealing end plate 500 installed in a supporting manner. Among them:

[0029] The component body includes an anti-rotation shaft sleeve 200 and a shock absorber base 300. Both the anti-rotation shaft sleeve 200 and the shock absorber base 300 are assembled on the outside of the shaft body 100 through interference fit. In the normal assembly state, the shock absorber base 300 is located inside the anti-rotation shaft sleeve 200. At the same time, an oil injection hole 400 for connecting with the hydraulic pump assembly 600 is provided on the component body. The oil injection hole 400 of the anti-rotation shaft sleeve 200 is located on its circumferential surface; the oil injection hole 400 of the shock absorber base 300 is located on the side surface outside it, and this oil injection hole 400 is inclinedly distributed;

[0030] In this embodiment, the purpose is to remove the anti-rotation shaft sleeve 200 located on the outside. The sealing end plate 500 is located outside the end of the shaft body 100. The sealing end plate 500 is a metal panel. Six groups of through holes are provided at the edge of the sealing end plate 500. The through holes are connected and fixed with the corresponding through holes of the anti-rotation shaft sleeve 200 through bolt assemblies 501, so that the sealing end plate 500 is detachably connected to the anti-rotation shaft sleeve 200, which is convenient for removing the sealing end plate 500 after disassembly;

[0031] On one side surface of the sealing end plate 500 close to the shaft body 100, there is a cavity part 502. The cavity part 502 is a flat cylindrical structure. The edge of the cavity part 502 communicates with the connection position of the shaft body 100 and the anti-backlash sleeve 200. The main body of the cavity part 502 covers the entire end of the shaft body 100. At the same time, on one side surface of the sealing end plate 500 close to the shaft body 100, there is a seal 503. The seal 503 uses a sealing ring. On the surface of the sealing end plate 500, there is a sealing groove for accommodating the seal 503. The sealing groove positions the installation position of the seal 503. The seal 503 is annular and is located outside the connection position of the shaft body 100 and the anti-backlash sleeve 200. The seal 503 abuts against the sealing end plate 500 and the anti-backlash sleeve 200 respectively, so as to keep the space of the cavity part 502 airtight and seal the connection position of the shaft body 100 and the anti-backlash sleeve 200;

[0032] During the disassembly process, connect the oil injection hole 400 of the anti-backlash sleeve 200 to the hydraulic pump assembly 600. Inject high-pressure hydraulic oil 700 into the oil injection hole 400 by the hydraulic pump assembly 600. The hydraulic oil 700 enters the connection position of the shaft body 100 and the anti-backlash sleeve 200 and fills the gap at this connection position to form a uniformly distributed layer, so that the anti-backlash sleeve 200 floats outside the shaft body 100 through the hydraulic oil 700, eliminating the interference fit assembly effect of the anti-backlash sleeve 200. At this time, as long as the operation state of the hydraulic pump assembly 600 is maintained, the anti-backlash sleeve 200 can move axially. At the same time, the hydraulic oil 700 moving outward to the anti-backlash sleeve 200 enters the cavity part 502 and accumulates in the cavity part 502 to form an independent pressure space. As the hydraulic oil 700 accumulates, this pressure space applies pressure to the end of the shaft body 100, causing the anti-backlash sleeve 200 to slide outward until it disengages from the shaft body 100 and falls off freely, thus replacing the hydraulic cylinder assembly and at the same time maintaining the synchronous pressure effect. After the anti-backlash sleeve 200 is removed, the whole process does not require the use of external mechanical tools to contact the shaft body 100 or the anti-backlash sleeve 200, ensuring that the product is not scratched or even damaged.

[0033] Embodiment 2

[0034] According to Figures 7 to 8 As shown: This embodiment provides a disassembly structure for an engine shock absorber, including a shaft body 100 and a component body installed outside it, as well as a matching sealing end plate 500. The difference from Embodiment 1 is that:

[0035] This embodiment is about the process of disassembling the shock absorber base 300 after the implementation of Embodiment 1. During the disassembly process, the oil injection hole 400 of the shock absorber base 300 is connected to the hydraulic pump assembly 600, and the hydraulic pump assembly 600 injects high-pressure hydraulic oil 700 into the oil injection hole 400. The hydraulic oil 700 enters the connection position between the shaft body 100 and the shock absorber base 300 and fills the gap at this connection position, forming a uniformly distributed layer, so that the shock absorber base 300 floats outside the shaft body 100 through the hydraulic oil 700, eliminating the interference fit assembly effect of the shock absorber base 300. At this time, as long as the operating state of the hydraulic pump assembly 600 is maintained, the shock absorber base 300 can move axially. At this time, the shock absorber base 300 is moved to the end position of the shaft body 100;

[0036] On the basis of the above structure, a sealing end plate 500 is installed. Different from Embodiment 1: Since the diameter of the shock absorber base 300 is larger, the diameter of the sealing end plate 500 in this embodiment is correspondingly set. The sealing end plate 500 is connected to the shock absorber groove body 301 of the shock absorber base 300 by bolts to firmly fix the sealing end plate 500. At the same time, due to the position setting of the oil injection hole 400 of the shock absorber base 300, a relief hole 504 is also provided on the sealing end plate 500. The relief hole 504 penetrates through the sealing end plate 500, and the relief hole 504 is also inclined and distributed in the same way as the oil injection hole 400 of the shock absorber base 300. After the sealing end plate 500 is assembled to the shock absorber base 300, the oil injection hole 400 of the shock absorber base 300 is located at the end opening position of the relief hole 504, and the oil injection hole 400 can also be connected to the external hydraulic pump assembly 600. The relief hole 504 is located outside the seal 503, so as not to affect the airtight state and operating action of the cavity part. On this premise, the mating connection structure and disassembly action of the sealing end plate 500 with the shock absorber base 300 and the shaft body 100 are the same as those in Embodiment 1.

[0037] The above is only the preferred implementation mode of the present invention. As long as the technical solutions that achieve the purpose of the present invention by basically the same means are within the protection scope of the present invention.

Claims

1. An engine shock absorber disassembly structure, comprising a shaft body and a component body installed outside it, characterized in that, It further includes a sealing end plate; The sealing end plate is located outside the end of the shaft body and seals the connection position between the shaft body and the component body; The sealing end plate is detachably connected to the component body.

2. The engine shock absorber disassembly structure according to claim 1, wherein: The component body is a non-return bushing or a shock absorber base, and an oil injection hole for connecting with a hydraulic pump assembly is provided on the component body.

3. The engine shock absorber disassembly structure according to claim 1, characterized in that: A cavity portion is provided on the surface of the sealing end plate close to the shaft body, and the cavity portion communicates with the connection position between the shaft body and the component body.

4. The engine shock absorber disassembly structure according to claim 1, characterized in that: A sealing member is provided on the surface of the sealing end plate close to the shaft body. The sealing member is annular and is located outside the connection position between the shaft body and the component body. The sealing member abuts against the sealing end plate and the component body respectively.

5. The engine shock absorber disassembly structure according to claim 4, characterized in that: A sealing groove for accommodating the sealing member is provided on the surface of the sealing end plate.

6. The disassembly structure of the engine shock absorber according to claim 1, characterized in that: A plurality of through holes are provided at the edge of the sealing end plate, and the through holes are fixedly connected to the component body through bolt assemblies.

7. The disassembly structure of the engine shock absorber according to claim 1, characterized in that: A relief hole is further provided on the sealing end plate, and the relief hole is inclinedly distributed.

8. The engine shock absorber disassembly structure according to claim 7, characterized in that: The relief hole is located outside the sealing member of the sealing end plate.

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