Special tool for disassembling cylinder sleeve in cabin

Abstract

The invention provides a special tool for disassembling a cylinder sleeve in a cabin, which comprises a tool body and intermediates arranged on the left side and the right side of the tool body, each intermediate is slidably mounted on the tool body, and a pushing part for pushing the intermediates to slide is arranged between the two intermediates. The pushing piece is installed on the assembling body in a sliding mode, the moving direction of the pushing piece is perpendicular to the sliding direction of the middle body, and a driving assembly used for driving the pushing piece to move is arranged on the tool body; an outer inclined plane part is arranged on the pushing piece, and an inner inclined plane part matched with the outer inclined plane part is arranged at one end, facing the pushing piece, of the middle body. The special tool for disassembling the cylinder sleeve in the cabin has the advantages of being simple in structure, easy to assemble and use and capable of being used for disassembling the cylinder sleeve in the cabin, cylinder sleeve disassembling is safe and easy to implement, simple and easy to operate, the production efficiency during maintenance can be improved, and damage to parts is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of diesel engines, and in particular relates to a special tool for disassembling a cylinder liner in an engine room. Background Art

[0002] During the maintenance or W5 repair of a ship's high-power diesel engine, one important inspection item is the cylinder liner inspection. If the cylinder liner is found to have serious scratches, shallow reticular patterns in the flaky area, or severe ablation or corrosion, the cylinder liner needs to be replaced according to the cylinder liner repair standards.

[0003] During maintenance in the ship's engine room, due to the small space in the engine room, replacing the cylinder liner involves a lot of work in disassembling and assembling diesel engine parts, and the operation is dangerous. At present, the process method for replacing the cylinder liner in the engine room of high-power series diesel engines of ships adopts the traditional process method of first removing the piston connecting rod group of the cylinder and then replacing the cylinder liner. This process is completely dependent on the skills of the operator and the close cooperation between the personnel, and requires repeated practice to reach a certain level of proficiency. When replacing a large number of cylinder liners, if the operator is a little careless or improperly cooperates, it may cause the connecting rod tile to be installed in place when installing the connecting rod piston group, resulting in major accidents such as smashing the tile and burning the shaft; secondly, there is a risk that the connecting rod piston will hit the piston cooling oil nozzle during extraction and installation, resulting in a "cylinder pulling" failure, so a special tooling for removing the cylinder liner is needed. Summary of the invention

[0004] In view of this, the present invention aims to provide a special tool for removing the cylinder liner in the engine room, so as to solve the problem that the existing cylinder liner is inconvenient to replace during maintenance in the ship's engine room.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A special tool for removing a cylinder liner in an engine room comprises a tool body and intermediate bodies arranged on the left and right sides of the tool body, each of the intermediate bodies is slidably mounted on the tool body, a pushing member for pushing the intermediate body to slide is provided between the two intermediate bodies, the pushing member is slidably mounted on the assembly body, the moving direction of the pushing member is perpendicular to the sliding direction of the intermediate body, the tool body is provided with a driving component for driving the pushing member to move; the pushing member is provided with an outer inclined portion, and an inner inclined portion cooperating with the outer inclined portion is provided on one end of the intermediate body facing the pushing member.

[0007] Furthermore, the pushing member is a conical or truncated cone-shaped structural member.

[0008] Furthermore, the driving assembly includes an adjusting screw arranged on the assembly tool corresponding to the pushing member, and the assembly tool is provided with a threaded hole matching the adjusting screw, and one end of the adjusting screw passes through the threaded hole and is connected to the pushing member.

[0009] Furthermore, the adjusting screw and the pushing member are detachably connected.

[0010] Furthermore, one end of the intermediate body facing the outside of the tooling body is provided with a bushing that can cooperate with the cylinder sleeve.

[0011] Furthermore, the intermediate body is an H-shaped structural member.

[0012] Furthermore, a handle is provided on the tool body, and the handle is arranged corresponding to the driving assembly.

[0013] Furthermore, the tool body is provided with a sliding gap which is slidably matched with the intermediate body.

[0014] Furthermore, the tool body includes an upper plate and a lower plate, the upper plate and the lower plate are detachably connected via a connecting piece, and there is a sliding gap between the upper plate and the lower plate that is slidably matched with the intermediate body.

[0015] Furthermore, at least two connecting members are provided corresponding to the intermediate body, each connecting member is provided with a sliding block, and the intermediate body is provided with a strip hole that slidably cooperates with the sliding block.

[0016] Compared with the prior art, the special tool for removing the cylinder liner in the engine room described in the present invention has the following advantages:

[0017] The special tooling for removing cylinder liners in an engine room described in the present invention has a simple structure and is easy to assemble and use. It can be used for removing cylinder liners in an engine room, making the removal of cylinder liners safe, easy to implement, and simple and easy to operate. It is not only beneficial to improving the production efficiency during maintenance, but also can effectively avoid major diesel engine accidents caused by improper installation or damaged parts during the disassembly and assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic structural diagram of a special tool for removing a cylinder liner in a cabin according to an embodiment of the present invention;

[0020] Figure 2 A cross-sectional view of a special tool for removing a cylinder liner in a cabin according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic structural diagram of an intermediate body in a special tool for removing a cylinder liner in a cabin according to an embodiment of the present invention;

[0022] Figure 4This is a schematic structural diagram of a connecting piece in a special tool for removing a cylinder liner in a cabin according to an embodiment of the present invention;

[0023] Figure 5 The present invention is a schematic structural diagram of a pushing member in a special tool for removing a cylinder liner in a cabin according to an embodiment of the present invention.

[0024] Description of reference numerals:

[0025] 1. Upper plate; 2. Lower plate; 3. Intermediate body; 4. Pusher; 5. Adjusting screw; 6. Connector; 7. Handle; 8. Bushing; 9. Slider; 10. Strip hole; 11. Inner bevel portion; 12. Mounting hole; 13. Outer bevel portion. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0027] A special tool for removing cylinder liners in the engine room, such as Figures 1 to 5 As shown, it includes a tooling body and intermediate bodies 3 arranged on the left and right sides of the tooling body, each of the intermediate bodies 3 is slidably installed on the tooling body, a pushing member 4 for pushing the intermediate bodies 3 to slide is provided between the two intermediate bodies 3, the pushing member 4 is slidably installed on the assembly body, and the moving direction of the pushing member 4 is perpendicular to the sliding direction of the intermediate bodies 3, and the tooling body is provided with a driving component for driving the pushing member 4 to move; the pushing member 4 is provided with an outer inclined portion 13, and an inner inclined portion 11 cooperating with the outer inclined portion 13 is provided on one end of the intermediate body 3 facing the pushing member 4.

[0028] Preferably, the pusher 4 is a conical or truncated cone-shaped structural member. By adopting the pusher 4 of the conical or truncated cone-shaped structure, whether the pusher 4 moves linearly or moves while rotating, the outer bevel 13 on the pusher 4 can cooperate well with the inner bevel 11 on the intermediate body 3, thereby pushing the two intermediate bodies 3 to slide, so that the intermediate body 3 can extend out of the tooling body and fit with the inner wall of the cylinder sleeve, thereby realizing the connection between the tooling body and the cylinder sleeve, and facilitating the operator to assemble the cylinder sleeve using the tooling body.

[0029] Preferably, the driving assembly includes an adjusting screw 5 arranged on the assembly tool corresponding to the pushing member 4, and the assembly tool is provided with a threaded hole matched with the adjusting screw 5, and one end of the adjusting screw 5 passes through the threaded hole and is connected to the pushing member 4. In addition, those skilled in the art can also select other suitable driving assemblies according to actual needs to realize the movement of the pushing member 4, which will not be repeated here.

[0030] Exemplarily, the adjusting screw 5 is vertically arranged above the assembly tool, the corresponding intermediate bodies 3 are horizontally slidably installed on the assembly tool, the pusher 4 is arranged below the intermediate body 3, and a receiving groove for receiving the adjusting screw 5 can be arranged on the intermediate body 3, and a receiving gap for receiving the connecting member 6 can also be arranged between the two intermediate bodies 3, so that the adjusting screw 5 passes through the two intermediate bodies 3 and is connected to the pusher 4. In addition, the pusher 4 can also be arranged above the intermediate body 3.

[0031] In actual application, taking the case where the pusher 4 is arranged below the intermediate body 3 as an example, the operator can first extend the tool body from the upper part of the cylinder sleeve into the inner hole of the cylinder sleeve, and then screw the adjusting screw 5, and use the adjusting screw 5 to cooperate with the threaded hole to drive the pusher 4 to move upward, and use the outer inclined surface 13 on the pusher 4 to cooperate with the inner inclined surface 11 on the two intermediate bodies 3, so as to push the two intermediate bodies 3 to slide to the outside of the tool body, so that the two intermediate bodies 3 can fit tightly with the inner wall of the cylinder sleeve, and then the operator can use the tool body to drive the cylinder sleeve to move and realize the disassembly of the cylinder sleeve. Conversely, when the pusher 4 is arranged above the intermediate body 3, the operator only needs to screw the adjusting screw 5 to drive the pusher 4 to move downward, which will not be repeated here.

[0032] Preferably, the adjusting screw 5 and the pushing member 4 are detachably connected. Exemplarily, the pushing member 4 is provided with a mounting hole 12, and a locking nut is provided at one end of the adjusting screw 5 passing through the mounting hole 12, and a locking washer can also be provided between the locking nut and the pushing member 4 to improve the stability of the connection between the adjusting screw 5 and the pushing member 4. By connecting the adjusting screw 5 and the pushing member 4 in a detachable manner, the assembly, use and maintenance of this special tooling are facilitated, and the operator can also replace the adjusting screw 5 of a suitable length according to actual needs, which is convenient for the use of this special tooling in the cabin, and improves the convenience and applicability of this special tooling when used.

[0033] Preferably, a bushing 8 that can cooperate with the cylinder liner is provided at one end of the intermediate body 3 facing the outside of the tooling body. Exemplarily, the bushing 8 can be made of polymer materials, such as rubber, fiber, plastic and composite materials, to prevent the bushing 8 from scratching the inner wall of the cylinder liner. Specifically, the bushing 8 can be made of nylon and fixed on the outside of the intermediate body 3 to form an arc surface that cooperates with the inner wall of the cylinder liner. By providing the bushing 8, the cylinder liner can be effectively prevented from being damaged during the assembly process, reducing the difficulty of operating this special tooling.

[0034] Preferably, a handle 7 is provided on the tool body, and the handle 7 is arranged corresponding to the drive assembly. Exemplarily, the handle 7 is fixed on the tool body and arranged corresponding to one side of the pusher 4, and there is a gap between the two, so that the operator can operate the handle 7 and the drive assembly separately to prevent interference. At the same time, the operator can also conveniently use the handle 7 to drive the tool body to move and realize the disassembly of the cylinder liner.

[0035] In actual application, after the operator uses the intermediate body 3 to connect the tool body with the cylinder sleeve, the operator can use the handle 7 to drive the tool body to move, thereby reducing the operating difficulty of the operator.

[0036] Preferably, a sliding gap that is slidably matched with the intermediate body 3 is provided on the tool body. Exemplarily, the tool body includes an upper plate 1 and a lower plate 2, and the upper plate 1 and the lower plate 2 are detachably connected by a connector 6, and there is a sliding gap between the upper plate 1 and the lower plate 2 that is slidably matched with the intermediate body 3. By adopting a split and detachable tool body, the difficulty of assembling and using the tool is further reduced, and the applicability and convenience of maintenance are improved. At the same time, by setting the sliding gap and utilizing the sliding gap to cooperate with the intermediate body 3, the stability of the intermediate body 3 when moving can also be improved.

[0037] Preferably, at least two connectors 6 are provided corresponding to the intermediate body 3, each connector 6 is provided with a slider portion 9, and the intermediate body 3 is provided with a strip hole 10 that slides with the slider portion 9. Exemplarily, two, four or more connectors 6 can be provided corresponding to the intermediate body 3. For example, when two connectors 6 are provided, the two connectors 6 are provided corresponding to the two intermediate bodies 3 respectively. By utilizing the slider portion 9 on the connector 6 to cooperate with the strip hole 10 on the intermediate body 3, the sliding stability of the intermediate body 3 can be ensured, and the two intermediate bodies 3 can be ensured to cooperate with the inner wall of the cylinder sleeve.

[0038] In addition, when more than four connecting members 6 are provided, at least two connecting members 6 can be provided at each intermediate body 3, and the corresponding strip holes 10 are provided one by one with the connecting members 6. By providing more than two connecting members 6 at each intermediate body 3, a multi-point guide for the intermediate body 3 can be formed, which is beneficial to further improve the sliding stability of the intermediate body 3. At the same time, by providing multiple connecting members 6, it is also beneficial to improve the overall structural strength of the assembly tool, ensuring that the assembly tool can stably drive the cylinder liner to move out of the body.

[0039] In actual application, one end of the connector 6 is threadedly connected to the upper plate 1, and a thread groove matching the connector 6 is provided on the upper plate 1, and the thread groove is communicated with the sliding gap, and a countersunk hole matching the connector 6 is provided on the lower plate 2, and a fixing nut is installed at one end of the connector 6 passing through the countersunk hole, and external threads are provided at the upper and lower ends of the connector 6. By adopting the connector 6 of the above structure, the thread groove can play a good hiding role for the upper end of the connector 6, and the countersunk hole can play a good hiding role for the lower end of the connector 6 and the fixing nut, thereby preventing the connector 6 from protruding from the surface of the tooling body, which is conducive to reducing the difficulty of operation for operators when using such tooling, and preventing the connector 6 from causing damage to the cylinder liner.

[0040] Preferably, the intermediate body 3 is an H-shaped structural member. The bushing 8 and the inner inclined surface 11 are folded on two vertical sections of the intermediate body 3, respectively, and the strip hole 10 is arranged on the horizontal section of the intermediate body 3. Compared with the intermediate body 3 of other structures, the intermediate body 3 of the H-shaped structure has better structural strength and light weight. While ensuring the structural strength, it is conducive to reducing the overall weight of the tooling, making it convenient for operators to use the tooling in the cabin.

[0041] When this special tool is used to remove the cylinder liner, the tool body can be first inserted into the inner hole of the cylinder liner from the upper part of the cylinder liner of the machine body, and then the adjusting screw 5 is rotated to drive the pusher to move, and the outer bevel portion 13 on the pusher cooperates with the inner bevel portions 11 on the two intermediate bodies 3 to push the two intermediate bodies 3 to slide and expand outward until the bushing 8 on the intermediate body 3 fits tightly with the inner hole of the cylinder liner, wherein the bushing 8 can effectively prevent the inner surface of the cylinder liner from being damaged. Finally, the operator can use the handle 7 to drive the tool body and the cylinder liner on it to pull out of the machine body, and the cylinder liner can be removed.

[0042] By using this special tooling to disassemble the cylinder liner, the connecting rod piston assembly does not need to be disassembled during the disassembly and assembly process, and the piston cooling oil nozzle and other parts will not be bumped. This can effectively avoid major accidents such as the connecting rod tile being not installed properly and causing the tile to be smashed and the shaft to be burned when installing the connecting rod piston assembly. It can also effectively avoid the "cylinder pulling" failure caused by bumping the piston cooling oil nozzle, thereby improving the safety and production efficiency of disassembling the cylinder liner in the engine room. At the same time, by adjusting the outer diameter of the structure composed of the two intermediate bodies 3 by screwing in and out of the adjusting screw 5 thread, the operation is simple and the matching accuracy is high, which can improve the tightness of the outer diameter of the structure composed of the two intermediate bodies 3 and the inner hole of the cylinder liner.

[0043] The special tooling for removing cylinder liners in an engine room described in the present invention has a simple structure and is easy to assemble and use. It can be used for removing cylinder liners in an engine room, making the removal of cylinder liners safe, easy to implement, and simple and easy to operate. It is not only beneficial to improving the production efficiency during maintenance, but also can effectively avoid major diesel engine accidents caused by improper installation or damaged parts during the disassembly and assembly process.

[0044] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A special tool for removing cylinder liners in a cabin, characterized by: The utility model comprises a tool body and intermediate bodies (3) arranged on the left and right sides of the tool body, each of the intermediate bodies (3) is slidably mounted on the tool body, a pushing member (4) for pushing the intermediate bodies (3) to slide is arranged between the two intermediate bodies (3), the pushing member (4) is slidably mounted on the assembly body, the moving direction of the pushing member (4) is perpendicular to the sliding direction of the intermediate bodies (3), and a driving component for driving the pushing member (4) to move is arranged on the tool body; the pushing member (4) is provided with an outer inclined surface (13), and an inner inclined surface (11) cooperating with the outer inclined surface (13) is arranged on one end of the intermediate body (3) facing the pushing member (4).

2. The special tool for removing cylinder liners in a cabin according to claim 1, characterized in that: The pushing member (4) is a conical or truncated cone-shaped structural member.

3. The special tool for removing cylinder liners in a cabin according to claim 1, characterized in that: The driving assembly comprises an adjusting screw (5) arranged on an assembly tool corresponding to a pushing member (4); a threaded hole matching the adjusting screw (5) is provided on the assembly tool; one end of the adjusting screw (5) passes through the threaded hole and is connected to the pushing member (4).

4. The special tool for removing cylinder liners in a cabin according to claim 3, characterized in that: The adjusting screw rod (5) and the pushing member (4) are detachably connected.

5. The special tool for removing cylinder liners in a cabin according to claim 1, characterized in that: The end of the intermediate body (3) facing the outside of the tooling body is provided with a bushing (8) that can cooperate with the cylinder sleeve.

6. The special tool for removing cylinder liners in a cabin according to claim 1, characterized in that: The intermediate body (3) is an H-shaped structural member.

7. The special tool for removing cylinder liners in a cabin according to claim 1, characterized in that: A handle member (7) is provided on the tool body, and the handle member (7) is arranged corresponding to the drive assembly.

8. A special tool for removing cylinder liners in a cabin according to any one of claims 1 to 7, characterized in that: The tool body is provided with a sliding gap which is slidably matched with the intermediate body (3).

9. The special tool for removing cylinder liners in a cabin according to claim 8, characterized in that: The tooling body comprises an upper plate (1) and a lower plate (2), wherein the upper plate (1) and the lower plate (2) are detachably connected via a connecting piece (6), and a sliding gap exists between the upper plate (1) and the lower plate (2) for sliding fit with the intermediate body (3).

10. The special tool for removing cylinder liners in a cabin according to claim 9, characterized in that: At least two connecting members (6) are arranged corresponding to the intermediate body (3), each connecting member (6) is provided with a sliding block (9), and the intermediate body (3) is provided with a strip hole (10) that slidably cooperates with the sliding block (9).

Images