Anti-friction ring dismounting tool

Abstract

The application discloses an anti-wear ring dismounting tool which comprises a support assembly, a lifting mechanism assembly and a driving member; the support assembly is arranged at the end of a cylinder liner; the lifting mechanism assembly can extend into the inner hole groove of the anti-wear ring; the driving member is used for driving the lifting mechanism assembly to move; wherein the lifting mechanism assembly is movably arranged on the support assembly, the support assembly is used for limiting the movement of the lifting mechanism assembly in the axial direction of the cylinder liner, and the driving member can drive the lifting mechanism assembly to move in the axial direction of the cylinder liner relative to the support assembly. In the dismounting process of the anti-wear ring, the lifting mechanism assembly extends into the inner hole groove of the anti-wear ring located on the inner side of the cylinder liner, the support assembly provides stable support for the lifting mechanism assembly at the end of the cylinder liner and limits the movement of the lifting mechanism assembly in the axial direction of the cylinder liner, and then the driving member drives the lifting mechanism assembly to move out of the anti-wear ring, so that the anti-wear ring which has worked for a long time in a diesel engine can be dismounted.

Description

Technical Field

[0001] This application relates to the field of engines, and more particularly to a tool for removing and installing anti-wear rings. Background Technology

[0002] Diesel engine cylinder liners are generally equipped with anti-wear rings, which can improve diesel engine lubrication, reduce carbon emissions, and reduce wear on cylinder liners and pistons. During the long-term use of diesel engines, anti-wear rings may corrode in high-temperature and high-pressure working environments, or carbon deposits produced by diesel engine combustion may accumulate in the grooves of the anti-wear rings, leading to "seizing" or "sintering" phenomena. It is difficult to remove the anti-wear rings completely from the cylinder liners manually, and the removal process is very likely to cause the anti-wear ring body to break, the grooves to be damaged, or even damage to the cylinder liner and make it unusable. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an anti-wear ring removal and installation tool, which can easily remove the anti-wear ring that has been in operation for a long time in a diesel engine.

[0004] The anti-wear ring removal and installation tool according to an embodiment of this application includes: a bracket assembly placed at the end of a cylinder liner; a lifting mechanism assembly for removing an anti-wear ring installed inside the cylinder liner, the lifting mechanism assembly being able to extend into the inner groove of the anti-wear ring; and a driving member for driving the lifting mechanism assembly to move; wherein the lifting mechanism assembly is movably mounted on the bracket assembly, the bracket assembly being used to limit the axial movement of the lifting mechanism assembly in the cylinder liner, and the driving member being able to drive the lifting mechanism assembly to move relative to the bracket assembly in the axial movement of the cylinder liner.

[0005] According to an embodiment of this application, the anti-wear ring disassembly and assembly tool includes a transfer member; one end of the transfer member is fixedly connected to the lifting mechanism assembly, and the other end is movably connected to the support assembly.

[0006] According to an embodiment of this application, the transmission component is a bolt, and the driving component is a first nut adapted to the transmission component; the lifting mechanism assembly has a lifting hole along the axial direction, and the lifting hole is provided with a thread for the bolt; the bracket assembly has a bracket hole along the axial direction, and the bracket hole is a through hole; one end of the transmission component is threaded to the lifting hole, and the other end passes through the bracket hole; the driving component is threaded to the end of the transmission component that passes through the bracket hole; when the driving component is twisted, the transmission component moves relative to the driving component in the axial direction of the cylinder liner to drive the lifting mechanism assembly to move.

[0007] According to an embodiment of this application, the anti-wear ring disassembly and assembly tool includes a self-locking component, which is installed at one end of the connecting bracket hole of the transmission component. When the driving component drives the transmission component to rotate, the self-locking component abuts against the lifting mechanism assembly to prevent relative rotation between the transmission component and the lifting mechanism assembly.

[0008] According to an embodiment of this application, the self-locking member is formed as a second nut that adapts to the transmission member, and the self-locking member is threadedly installed at one end of the transmission member connecting to the lifting mechanism assembly.

[0009] According to an embodiment of this application, the lifting mechanism assembly includes a locking block, through which the lifting mechanism assembly extends into the inner recess of the anti-wear ring.

[0010] According to an embodiment of this application, the lifting mechanism assembly includes a lifting plate, a lifting hole is provided on the lifting plate, an installation groove is provided on the edge of the lifting plate, and a locking block is fixedly connected to the lifting plate.

[0011] According to an embodiment of this application, the bracket assembly includes a flat plate, and bracket holes are disposed on the flat plate.

[0012] According to an embodiment of this application, the transmission member can pass through the bracket hole, while the driving member cannot pass through the bracket hole.

[0013] According to an embodiment of this application, the bracket assembly includes a support plate that can be placed on a shoulder on the outer edge of the cylinder liner end for supporting the bracket assembly and the lifting mechanism assembly.

[0014] The anti-wear ring removal and installation tool according to the embodiments of this application has at least the following beneficial effects: During the removal of the anti-wear ring, the lifting mechanism assembly extends into the inner hole groove of the anti-wear ring located inside the cylinder liner. The bracket assembly is placed at the end of the cylinder liner to provide stable support for the lifting mechanism assembly and limit the lifting mechanism assembly to only move in the axial direction of the cylinder liner with the anti-wear ring. Then, the driving component drives the lifting mechanism assembly to move and remove the anti-wear ring, thereby removing the anti-wear ring. The anti-wear ring removal and installation tool of this application can easily remove the anti-wear ring that has been working for a long time in the diesel engine.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a top view schematic diagram of the overall structure of the anti-wear ring disassembly and assembly tool according to one embodiment of this application; Figure 2 for Figure 1 A schematic cross-sectional view obtained by section line AA in the middle; Figure 3 for Figure 2 An enlarged schematic diagram of part a; Figure 4 for Figure 1 A schematic diagram of the lifting mechanism component in the anti-wear ring disassembly and assembly tool; Figure 5 for Figure 4 A schematic cross-sectional view obtained by the BB section line; Figure 6 for Figure 1 Schematic diagram of the support assembly in the anti-wear ring disassembly and assembly tool; Figure 7 for Figure 6 A schematic cross-sectional view obtained by the CC section line.

[0017] Figure label: 100, Bracket assembly; 110, Flat plate; 111, Bracket hole; 120, Support plate; 200, Lifting mechanism assembly; 210, Lifting plate; 211, Lifting hole; 212, Fixing hole; 220, Locking block; 230, Fixing component; 300, Transmission component; 400, Driving component; 500, Cylinder liner; 510, Shoulder; 600, Anti-wear ring; 610, Inner hole groove; 700, Self-locking component. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0022] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] Diesel engine cylinder liners are generally equipped with anti-wear rings, which can improve diesel engine lubrication, reduce carbon emissions, and reduce wear on cylinder liners and pistons. During the long-term use of diesel engines, anti-wear rings may corrode in high-temperature and high-pressure working environments, or carbon deposits produced by diesel engine combustion may accumulate in the grooves of the anti-wear rings, leading to "seizing" or "sintering" phenomena. It is difficult to remove the anti-wear rings completely from the cylinder liners manually, and the removal process is very likely to cause the anti-wear ring body to break, the grooves to be damaged, or even damage to the cylinder liner and make it unusable.

[0024] To address the aforementioned issues, this application provides an anti-wear ring removal and installation tool that can easily remove anti-wear rings that have been in operation for extended periods in diesel engines.

[0025] It is worth noting that the terms "above" and "below" in the specific embodiments of this application are as described in the appendix to the specification. Figure 2 The upper and lower parts are used as the reference, that is Figure 2 The vertical positional relationship of each component can represent the actual vertical positional relationship of each component in this embodiment. For example, the bracket assembly 100 is located above the lifting mechanism assembly 200.

[0026] The following is for reference. Figures 1 to 7 This application describes a tool for disassembling and assembling an anti-wear ring 600 according to an embodiment of the present application.

[0027] Please see Figure 1 and Figure 2The anti-wear ring 600 removal and installation tool of this application embodiment includes a bracket assembly 100, a lifting mechanism assembly 200, and a drive member 400. The bracket assembly 100 and the lifting mechanism assembly 200 cooperate to completely remove the anti-wear ring 600 located inside the cylinder liner 500. The bracket assembly 100 is placed at the end of the cylinder liner 500. The lifting mechanism assembly 200 is used to remove the anti-wear ring 600 installed inside the cylinder liner 500. The lifting mechanism assembly 200 can extend into the inner hole groove 610 of the anti-wear ring 600. The drive member 400 is used to drive the lifting mechanism assembly 200 to move. The lifting mechanism assembly 200 is movably mounted on the bracket assembly 100. The bracket assembly 100 is used to limit the axial movement of the lifting mechanism assembly 200 in the cylinder liner 500. The drive member 400 can drive the lifting mechanism assembly 200 to move relative to the bracket assembly 100 in the axial movement of the cylinder liner 500.

[0028] In other words, such as Figure 2 As shown, the end of the cylinder liner 500 faces upward, and the anti-wear ring 600 is located on the inner side of the cylinder liner 500. The anti-wear ring 600 removal tool allows the anti-wear ring 600 to move upward along the axial direction of the cylinder liner 500 from its inner side to complete the removal of the anti-wear ring 600. The anti-wear ring 600 removal tool includes a bracket assembly 100 and a lifting mechanism assembly 200 located below the bracket assembly 100. The lifting mechanism assembly 200 is movably connected to the bracket assembly 100; as shown... Figure 6 and Figure 7 As shown, the bracket assembly 100 includes a support plate 120, which can be placed on the shoulder 510 on the outer edge of the cylinder liner 500 end, for supporting the bracket assembly 100 and the lifting mechanism assembly 200; as Figure 4 and Figure 5 As shown, the lifting mechanism component 200 includes a card block 220, such as Figure 3 As shown, the anti-wear ring 600 has an inner hole groove 610 at its inner hole. The lifting mechanism assembly 200 extends into the inner hole groove 610 of the anti-wear ring 600 via the locking block 220. During the removal of the anti-wear ring 600, the lifting mechanism assembly 200 is adjusted to extend into the inner hole groove 610 of the anti-wear ring 600, and then the driving member 400 drives the lifting mechanism assembly 200 to move axially upward relative to the cylinder liner 500. During this process, the support assembly 100 is always located at the end face of the cylinder liner 500. Under the action of the driving member 400, the lifting mechanism assembly 200 gradually approaches the support assembly 100 and pulls out the anti-wear ring 600 from the cylinder liner 500 through the locking block 220, thereby removing the anti-wear ring 600. The anti-wear ring 600, which has been working for a long time in the diesel engine, can be easily removed.

[0029] It is understood that the lifting mechanism assembly 200 can be movably connected to the support assembly 100 in ways such as telescopic sleeves or slide rails. For example, when using a telescopic sleeve connection, the support assembly 100 includes an outer rod formed as a hollow rod, and the lifting mechanism assembly 200 includes an inner rod formed with a diameter smaller than the aforementioned outer rod. The inner rod is fixedly connected to the lifting mechanism assembly 200 and can extend into the outer rod of the support assembly 100, thereby achieving a movable connection between the lifting mechanism assembly 200 and the support assembly 100. Other possible movable connection methods are also well known to those skilled in the art and will not be described in detail here.

[0030] In some embodiments, such as Figure 2 As shown, the anti-wear ring 600 disassembly and assembly tool includes a transmission component 300, one end of which is fixedly connected to the lifting mechanism assembly 200, and the other end is movably connected to the support assembly 100. A drive component 400 can drive the transmission component to move axially relative to the support assembly 100 in the cylinder liner 500, thereby driving the lifting mechanism assembly 200 to move axially in the cylinder liner 500. In other words, the lifting mechanism assembly 200 is movably connected to the lower part of the support assembly 100 via the transmission component 300, and the drive component can drive the transmission component 300 to transmit motion to the lifting mechanism assembly 200, thereby driving the lifting mechanism assembly 200 to move axially in the cylinder liner 500.

[0031] In some embodiments, such as Figure 2 As shown, the transmission component 300 is a bolt, and the driving component 400 is a first nut adapted to the transmission component 300; the lifting mechanism assembly 200 has a lifting hole 211 along the axial direction, and the lifting hole 211 is threaded; the bracket assembly 100 has a bracket hole 111 along the axial direction, and the bracket hole 111 is a through hole; one end of the transmission component 300 is threaded to the lifting hole 211, and the other end passes through the bracket hole 111; the driving component 400 is threaded to the end of the transmission component 300 that passes through the bracket hole 111; the transmission component 300 can pass through the bracket hole 111, but the driving component 400 cannot pass through the bracket hole 111; when the driving component 400 is twisted, the transmission component 300 moves relative to the driving component 400 in the axial direction of the cylinder liner 500 to drive the lifting mechanism assembly 200 to move.

[0032] In other words, such as Figure 2 and Figure 5As shown, the transmission member 300 is formed as a bolt, and the lifting mechanism assembly 200 has a lifting hole 211 along the axial direction. The lifting hole 211 is open and facing upwards, and has a thread to fit the bolt. The transmission member 300 is fixedly connected to the lifting mechanism assembly 200 downwards by the thread. The support assembly 100 has a support hole 111 along the axial direction. The support hole 111 is a through hole, and the transmission member 300 can pass upwards through the support hole 111. The driving member 400 is set as a first nut. The first nut is threadedly connected to the transmission member 300 formed as a bolt. The driving member 400, which is formed as a first nut, is located above the support assembly 100 and abuts against the support assembly 100.

[0033] During the removal of the anti-wear ring 600, the operator first adjusts the lifting mechanism assembly 200 to extend into the inner groove 610 of the anti-wear ring 600. Since the transmission component 300 can pass through the bracket hole 111, while the driving component 400 cannot, the driving component 400, which forms the first nut, and the transmission component 300, which forms the bolt, can move relative to each other. The operator uses a wrench to fix the transmission component 300 so that it does not rotate, and at the same time uses another wrench to turn the driving component 400 so that the transmission component 300, which forms the bolt, moves upward along the axial direction of the cylinder liner 500. Under the weight of the lifting mechanism assembly 200 and the friction between the anti-wear ring 600 and the cylinder liner 500, the driving component 400, which forms the first nut, always presses downward against the bracket assembly 100. Under the action of the driving component 400, the lifting mechanism assembly 200 gradually approaches the bracket assembly 100 and pulls out the anti-wear ring 600 from the cylinder liner 500 through the locking block 220, thereby removing the anti-wear ring 600.

[0034] In some embodiments, such as Figure 2 and Figure 6 As shown, the anti-wear ring 600 disassembly and assembly tool includes a self-locking component 700. The self-locking component 700 is installed at one end of the connecting bracket hole 111 of the transmission component 300. When the driving component 400 drives the transmission component 300 to rotate, the self-locking component 700 abuts against the lifting mechanism assembly 200 to prevent relative rotation between the transmission component 300 and the lifting mechanism assembly 200.

[0035] Understandably, when the transmission component 300 is formed as a bolt and the driving component 400 is formed as a first nut that adapts to the bolt, turning the driving component 400 causes the transmission component 300 to move linearly relative to the driving component 400. The transmission component 300, formed as a bolt, is threadedly connected to the lifting mechanism assembly 200. During this linear movement relative to the driving component 400, the end of the transmission component 300 connected to the lifting mechanism assembly 200 may loosen, leading to axial displacement of the transmission component 300. To prevent this, the anti-wear ring 600 disassembly tool includes a self-locking component 700. The self-locking component 700 is installed on the transmission component 300, specifically close to and against the lifting mechanism assembly 200 to prevent relative rotation between the transmission component 300 and the lifting mechanism assembly 200, thereby preventing loosening of the end of the transmission component 300 connected to the lifting mechanism assembly 200.

[0036] Further, please see Figure 2 The self-locking member 700 is formed as a second nut adapted to the transmission member 300, and the self-locking member 700 is threadedly installed on one end of the transmission member 300 connected to the lifting mechanism assembly 200. That is, the self-locking member 700 is formed as a second nut, and the second nut can be threadedly connected to the transmission member 300, such as... Figure 2 As shown, when the transmission member 300, which is formed as a bolt, is threadedly connected to the lifting mechanism assembly 200, the second nut is turned so that it abuts against the lifting mechanism assembly 200 from above. With this setting, when the drive member 400 is turned to drive the transmission member 300 to move axially along the cylinder liner 500, the self-locking member 700, which is formed as the second nut, can abut against the lifting mechanism assembly 200 to prevent the lifting mechanism assembly 200 from rotating relative to the second nut, thereby preventing loosening between the transmission member 300 and the lifting mechanism assembly 200.

[0037] In some embodiments, such as Figure 4 and Figure 5 As shown, the lifting mechanism assembly 200 includes a lifting plate 210, a lifting hole 211 disposed on the lifting plate 210, and a mounting groove provided on the edge of the lifting plate 210. A locking block 220 is fixedly connected to the lifting plate 210. That is, please refer to... Figure 4 and Figure 5 The lifting plate 210 has a fixing hole 212 in the mounting groove, and the locking block 220 has a corresponding locking hole. The locking hole and the fixing hole 212 are coaxially arranged. The lifting mechanism assembly 200 also includes a fixing member 230, which is formed as a pin. The fixing member 230 can be inserted into the locking hole and the fixing hole 212 to fix the locking block 220 on the lifting plate 210.

[0038] In some embodiments, such as Figure 6 and Figure 7As shown, the bracket assembly 100 includes a flat plate 110, with a bracket hole 111 disposed on the flat plate 110; the bracket assembly 100 includes a support plate 120, which can be placed on the shoulder 510 on the outer edge of the cylinder liner 500 end, for supporting the bracket assembly 100 and the lifting mechanism assembly 200. That is, as... Figure 6 As shown, there are three support plates 120 and one flat plate 110. The three support plates 120 are evenly distributed along the edge of the flat plate 110, as follows. Figure 7 As shown, the support plate 120 and the flat plate 110 are connected at right angles. Specifically, the support plate 120 can be fixed to the flat plate 110 by welding or other methods. Figure 2 As shown, the bracket assembly 100 stands on the shoulder 510 at the outer edge of the cylinder liner 500 via three support plates 120, which serves to support the anti-wear ring 600 removal tool. When the drive member 400, which forms the first nut, is turned to drive the lifting mechanism assembly 200 to move upward, the anti-wear ring 600 removal tool abuts against the shoulder 510 of the cylinder liner 500 via the support plates 120, so that the anti-wear ring 600 can be stably removed from the cylinder liner 500.

[0039] Please see Figure 2 The following details the usage of the anti-wear ring 600 disassembly and assembly tool of this application: The bracket assembly 100 is placed at the end of the cylinder liner 500, specifically, the three support plates 120 are located on the shoulder 510 of the outer edge of the end of the cylinder liner 500 for stable support. Tighten the self-locking component 700 to make it firmly press against the lifting mechanism assembly 200 to prevent the lifting mechanism assembly 200 and the transmission component 300 from loosening due to relative rotation; Twisting the drive component 400 allows the three latches 220 of the lifting mechanism assembly 200 to extend into the inner recess 610 of the anti-wear ring 600; Use a wrench to hold the transmission component 300 in place to prevent it from rotating. At the same time, turn the drive component 400 to drive the lifting mechanism assembly 200 to move upward along the cylinder liner 500 axis, so that the three locking blocks 220 press against the upper surface of the groove 610 in the inner hole of the anti-wear ring 600. Continue turning the drive component 400 until the lifting mechanism assembly 200 drives the anti-wear ring 600 to move out of the cylinder liner 500.

[0040] The above operating steps can remove the anti-wear ring 600 that has been working in the diesel engine for a long time. The anti-wear ring 600 removal and installation tool of this application is simple and easy to operate, and can easily remove the anti-wear ring 600.

[0041] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A tool for disassembling and assembling an anti-wear ring, characterized in that, include: A bracket assembly, wherein the bracket assembly is placed at the end of the cylinder liner; A lifting mechanism assembly for removing an anti-wear ring installed inside the cylinder liner, the lifting mechanism assembly being able to extend into the inner groove of the anti-wear ring; A driving component is used to drive the lifting mechanism assembly to move; The lifting mechanism assembly is movably mounted on the bracket assembly, the bracket assembly is used to limit the axial movement of the lifting mechanism assembly in the cylinder liner, and the driving member is capable of driving the lifting mechanism assembly to move axially relative to the bracket assembly in the cylinder liner.

2. The anti-wear ring disassembly and assembly tool according to claim 1, characterized in that, It includes a transmission component; one end of the transmission component is fixedly connected to the lifting mechanism assembly, and the other end is movably connected to the support assembly.

3. The anti-wear ring disassembly and assembly tool according to claim 2, characterized in that, The transmission component is a bolt, and the driving component is a first nut adapted to the transmission component; the lifting mechanism assembly has a lifting hole along the axial direction, and the lifting hole is provided with a thread adapted to the bolt; the bracket assembly has a bracket hole along the axial direction, and the bracket hole is a through hole; one end of the transmission component is threaded to the lifting hole, and the other end protrudes from the bracket hole; the driving component is threaded to the end of the transmission component that protrudes from the bracket hole; when the driving component is twisted, the transmission component moves relative to the driving component in the axial direction of the cylinder liner to drive the lifting mechanism assembly to move.

4. The anti-wear ring disassembly and assembly tool according to claim 3, characterized in that, It includes a self-locking component, which is installed at one end of the transmission component that connects to the bracket hole. When the driving component drives the transmission component to rotate, the self-locking component abuts against the lifting mechanism assembly to prevent relative rotation between the transmission component and the lifting mechanism assembly.

5. The anti-wear ring disassembly and assembly tool according to claim 4, characterized in that, The self-locking member is formed as a second nut that adapts to the transmission member, and the self-locking member is threadedly installed on one end of the transmission member that connects to the lifting mechanism assembly.

6. The anti-wear ring disassembly and assembly tool according to any one of claims 1-5, characterized in that, The lifting mechanism assembly includes a locking block, through which the lifting mechanism assembly extends into the inner groove of the anti-wear ring.

7. The anti-wear ring disassembly and assembly tool according to claim 6, characterized in that, The lifting mechanism assembly includes a lifting plate, a lifting hole is provided on the lifting plate, an installation groove is provided on the edge of the lifting plate, and a locking block is fixedly connected to the lifting plate.

8. The anti-wear ring disassembly and assembly tool according to any one of claims 3-5, characterized in that, The bracket assembly includes a flat plate, and the bracket hole is disposed on the flat plate.

9. The anti-wear ring disassembly and assembly tool according to any one of claims 3-5, characterized in that, The transmission member can pass through the bracket hole, but the drive member cannot pass through the bracket hole.

10. The anti-wear ring disassembly and assembly tool according to any one of claims 1-5, characterized in that, The bracket assembly includes a support plate that can be placed on a shoulder on the outer edge of the cylinder liner end to support the bracket assembly and the lifting mechanism assembly.

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