Cylinder sleeve dismounting tool

Abstract

The utility model discloses a cylinder sleeve dismounting tool which comprises a mounting assembly, a screw rod and a base, the mounting assembly comprises a horizontally-arranged base plate, the upper portion of the screw rod is in threaded connection with the base plate, the lower portion of the screw rod is connected with the base through a connecting assembly, and two supporting arms are arranged on the base. When an engine is maintained, cylinder sleeves of different types can be dismounted by using the cylinder sleeve dismounting tool, so that the universality of the cylinder sleeve dismounting tool is improved, convenience is provided for maintenance personnel, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of engine repair equipment technology, and in particular to a cylinder liner disassembly tool. Background Technology

[0002] In the prior art, cylinder liner removal tools are often used when cylinder liners need to be removed during engine maintenance.

[0003] In existing technologies, cylinder liner removal tools are often only compatible with engines of the same model. They are not interchangeable between different engine models, especially large engines with varying block heights and bearing bolt hole positions. This incompatibility is particularly pronounced for large-bore engines. Therefore, engine manufacturer service stations and independent repair shops need to be equipped with multiple sets of cylinder liner removal tools to repair different engine models, causing significant inconvenience and greatly increasing repair costs. Summary of the Invention

[0004] To overcome the above-mentioned defects, the technical problem solved by this utility model is to provide a cylinder liner disassembly tool. When repairing an engine, the cylinder liner disassembly tool of this utility model can be used to disassemble cylinder liners of different engine models, which improves the versatility of the cylinder liner disassembly tool, provides convenience for maintenance personnel, and reduces maintenance costs.

[0005] This utility model discloses a cylinder liner disassembly tool, which includes an installation component, a screw, and a base. The installation component includes a horizontally arranged base plate. The upper part of the screw is threadedly connected to the base plate, and the lower part of the screw is connected to the base through a connecting component. The base is provided with two support arms.

[0006] Furthermore, the mounting assembly also includes two mounting structures, which are respectively located on both sides of the screw; each mounting structure includes a first support rod, the upper part of which is connected to the base plate.

[0007] Furthermore, a second support rod is provided below the first support rod, and the first support rod and the second support rod are connected by a threaded sleeve.

[0008] Furthermore, a mounting plate is fixedly connected to the lower end of the second support rod, and the mounting plate is horizontally positioned.

[0009] Furthermore, the substrate is provided with two strip-shaped holes, and the first support rod is movably installed in the corresponding strip-shaped hole.

[0010] Furthermore, the connecting assembly includes an upper cover and a bottom block, the upper cover and the bottom block being detachably and fixedly connected, the bottom block having a bottom block cavity extending to and communicating with the upper surface of the bottom block; a connecting block being provided inside the bottom block cavity, the connecting block being connected to the screw via a cylindrical pin; and the base being hinged to the bottom block.

[0011] Furthermore, the base and the bottom block are connected by a connecting pin.

[0012] Furthermore, the two support arms are respectively a first support arm and a second support arm. The base is provided with a first adjustment hole and a second adjustment hole. The first support arm is slidably disposed in the first adjustment hole, and the second support arm is slidably disposed in the second adjustment hole. A first stud is used to lock the first support arm in the first adjustment hole, and a second stud is used to lock the second support arm in the second adjustment hole.

[0013] Furthermore, the end of the first adjustment hole away from the second adjustment hole is an arc-shaped structure; the end of the second adjustment hole away from the first adjustment hole is also an arc-shaped structure.

[0014] Furthermore, the free end of the first support arm is provided with a first support arm positioning stop, and the free end of the second support arm is provided with a second support arm positioning stop.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are as follows: the cylinder liner disassembly fixture includes an installation component, a screw, and a base. The installation component includes a horizontally arranged base plate. The upper part of the screw is threadedly connected to the base plate, and the lower part of the screw is connected to the base via a connecting component. Two support arms are provided on the base. When repairing an engine, the cylinder liner disassembly fixture of this utility model can be used to disassemble cylinder liners of different engine models, improving the versatility of the cylinder liner disassembly fixture, providing convenience for maintenance personnel, and reducing maintenance costs. Attached Figure Description

[0016] Figure 1 This is a perspective view of the cylinder liner disassembly tool of this utility model;

[0017] Figure 2 This is a schematic diagram of the cylinder liner disassembly tool of this utility model;

[0018] Figure 3 yes Figure 2 The right view;

[0019] Figure 4 yes Figure 3 Sectional view along the middle AA direction;

[0020] Figure 5 yes Figure 1An enlarged 3D view of the first supporting arm;

[0021] Figure 6 yes Figure 1 An enlarged 3D view of the middle substrate;

[0022] Figure 7 yes Figure 1 An enlarged 3D view of the midsole block;

[0023] Figure 8 yes Figure 1 An enlarged 3D view of the upper and middle covers;

[0024] Figure 9 yes Figure 1 An enlarged 3D view of the central base;

[0025] In the diagram: 1. Handle; 2. Mounting assembly; 21. Base plate; 211. Strip hole; 22. Nut; 23. First support rod; 24. Second support rod; 25. Screw sleeve; 26. Mounting plate; 27. Mounting screw; 3. Screw; 4. Connecting assembly; 41. Connecting block; 42. Top cover; 43. Bottom block; 431. Bottom block cavity; 44. Upper bearing; 45. Lower bearing; 46. Upper retaining ring; 47. Lower retaining ring; 48. Cylindrical pin; 5. Connecting pin shaft; 6. Base; 61. Connecting ear; 62. First adjusting hole; 63. Second adjusting hole; 64. First limiting block; 65. Second limiting block; 71. First stud; 72. Second stud; 81. First support arm; 811. First support arm positioning stop; 812. First support arm guide; 82. Second support arm; 821. Second support arm positioning stop. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Combination Figure 1 , Figure 2 , Figure 3 ,as well as Figure 4 As shown, a cylinder liner removal tool includes an mounting assembly 2, a screw 3, and a base 6. To enhance thread strength, the screw 3 preferably has a trapezoidal thread.

[0028] The cylinder liner disassembly tool of this utility model also includes a handle 1, which has an internal hexagonal hole and an external hexagonal part at the upper end of the screw 3. When the screw 3 is rotated using the handle 1, the external hexagonal part of the screw 3 and the internal hexagonal hole on the handle 1 cooperate with each other.

[0029] Combination Figure 1 , Figure 2 ,as well as Figure 6As shown, the mounting assembly 2 includes a horizontally arranged base plate 21, the upper part of the screw 3 is threadedly connected to the base plate 21, and the lower part of the screw 3 is connected to the base 6 through the connecting assembly 4. The base 6 is provided with two support arms.

[0030] Preferably, the mounting assembly 2 further includes two mounting structures, which are located on both sides of the screw 3. Each mounting structure includes a first support rod 23, the upper part of which is connected to the base plate 21.

[0031] More preferably, two strip holes 211 are provided on the substrate 21, and the first support rods 23 are movably installed in the corresponding strip holes 211. The distance between the two first support rods 23 is reduced or increased by moving them in their respective strip holes 211. After the distance is adjusted, the corresponding first support rods 23 are fixed with nuts 22.

[0032] Preferably, a second support rod 24 is provided below the first support rod 23, and the first support rod 23 and the second support rod 24 are connected by a threaded sleeve 25.

[0033] More preferably, the lower end of the second support rod 24 is fixedly connected to a mounting plate 26, which is horizontally arranged. When disassembling the cylinder liner (not shown in the figure) of the engine (not shown in the figure), the mounting plate is fixed to the engine block (not shown in the figure) using mounting screws 27.

[0034] Combination Figure 1 , Figure 3 , Figure 4 , Figure 7 ,as well as Figure 8 As shown, the connecting component 4 includes an upper cover 42 and a bottom block 43. The upper cover 42 and the bottom block 43 are detachably and fixedly connected. The upper cover 42 is provided with internal threads, and the bottom block 43 is provided with external threads. The upper cover 42 and the bottom block 43 are preferably connected by threads.

[0035] The base block 43 has a base block cavity 431, which extends to and communicates with the upper surface of the base block 43. A connecting block 41 is disposed within the base block cavity 431, and the connecting block 41 is sleeved on the screw 3. The connecting block 41 and the screw 3 are connected by a cylindrical pin 48. When the screw 3 is turned, the connecting block 41 rotates within the base block cavity 431. To ensure smooth rotation of the connecting block 41, it is preferable to provide an upper retaining ring 46 and an upper bearing 44 above the connecting block 41, and a lower retaining ring 47 and a lower bearing 45 below the connecting block 41. The aforementioned structure for installing retaining rings and bearings is a conventional structure in the prior art and will not be described in detail here.

[0036] The base 6 is hinged to the base block 43. The base 6 includes a pair of connecting ears 61, which are preferably connected to the base block 43 via connecting pins 5.

[0037] Combination Figure 1 , Figure 5 ,as well as Figure 9 As shown, the two support arms are a first support arm 81 and a second support arm 82. The first support arm 81 includes a first support arm guide portion 812, and the second support arm 82 includes a second support arm guide portion. A first adjustment hole 62 and a second adjustment hole 63 are provided on the base 6. The first support arm 81 is slidably disposed in the first adjustment hole 62 through the first support arm guide portion 812, and the second support arm 82 is slidably disposed in the second adjustment hole 63 through the second support arm guide portion. When disassembling cylinder liners of different inner diameters, after adjusting the position of the first support arm 81 in the first adjustment hole 62 and the position of the second support arm 82 in the second adjustment hole 63, the first support arm 81 is locked in the first adjustment hole 62 using the first stud 71, and the second support arm 82 is locked in the second adjustment hole 63 using the second stud 72.

[0038] Preferably, the end of the first adjustment hole 62 away from the second adjustment hole 63 is an arc-shaped structure, which facilitates the adjustment of the first support arm 81 in different directions; the end of the second adjustment hole 63 away from the first adjustment hole 62 is an arc-shaped structure, which facilitates the adjustment of the second support arm 82 in different directions.

[0039] More preferably, a first support arm positioning stop 811 is provided at the free end of the first support arm 81, and a second support arm positioning stop 821 is provided at the free end of the second support arm 82.

[0040] Preferably, a first limiting block 64 and a second limiting block 65 are provided on the lower surface of the base 6, which can effectively prevent the base 6 from colliding and protect the safety of the base 6.

[0041] The following is a detailed description of the process of disassembling the cylinder liner using the cylinder liner disassembly tool of this utility model:

[0042] When disassembling the engine cylinder liner, the height of the two mounting structures can be adjusted according to the engine block of different models. The second support rod 24 can be used or not, depending on the specific situation. The total height of the first support rod 23 and the second support rod 24 can also be finely adjusted by connecting the first support rod 23 and the second support rod 24 to the threaded sleeve 25.

[0043] Adjust the positions of the first support arm 81 and the second support arm 82 in the first adjustment hole 62 and the second adjustment hole 63 of the base 6 respectively. After adjusting to the appropriate position, use the first stud 71 and the second stud 72 to fix the first support arm 81 and the second support arm 82 respectively. Since the base 6 and the base block 43 are hinged by the connecting pin 5, the base 6 is tilted during the process of placing the base 6 into the inner cavity of the cylinder liner. The base 6, the first support arm 81, and the second support arm 82 can move down smoothly in the inner cavity of the cylinder liner. After the base 6, the first support arm 81, and the second support arm 82 move down until they are removed from the lower end face of the cylinder liner, the base 6 is in a horizontal state. Use the handle 1 to turn the screw 3, and the first support arm positioning stop 811 and the second support arm positioning stop 821 are simultaneously locked on the lower end face of the cylinder liner.

[0044] Continue using handle 1 to rotate screw 3 and lift the cylinder liner upwards.

[0045] The technical features with serial numbers mentioned in this manual (such as first connecting rod, second connecting rod, first adjusting hole, second adjusting hole, first stud, second stud, first support arm, first support arm positioning stop, first support arm guide, second support arm, second support arm positioning stop, second support arm guide, first limiting block, second limiting block, etc.) are only for distinguishing each technical feature and do not represent the positional relationship, installation sequence, or working sequence of the technical features.

[0046] In the description of this specification, it should be understood that the orientation or positional relationship described by terms such as "upper cover", "bottom block", "bottom block cavity", "upper bearing", "lower bearing", "upper retaining ring", and "lower retaining ring" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0047] This utility model is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort shall fall within the protection scope of this utility model.

Claims

1. A cylinder liner disassembly tool, characterized in that, The device includes a mounting assembly, a screw, and a base. The mounting assembly includes a horizontally arranged base plate. The upper part of the screw is threadedly connected to the base plate, and the lower part of the screw is connected to the base via a connecting assembly. The base is provided with two support arms.

2. The cylinder liner disassembly fixture as described in claim 1, characterized in that, The mounting assembly further includes two mounting structures, which are located on both sides of the screw; each mounting structure includes a first support rod, the upper part of which is connected to the base plate.

3. The cylinder liner disassembly fixture as described in claim 2, characterized in that, A second support rod is provided below the first support rod, and the first support rod and the second support rod are connected by a threaded sleeve.

4. The cylinder liner disassembly fixture as described in claim 3, characterized in that, The lower end of the second support rod is fixedly connected to a mounting plate, which is horizontally positioned.

5. The cylinder liner disassembly fixture as described in claim 2, characterized in that, The substrate has two strip holes, and the first support rod is movably installed in the corresponding strip hole.

6. The cylinder liner disassembly fixture as described in claim 1, characterized in that, The connecting assembly includes an upper cover and a bottom block. The upper cover and the bottom block are detachably and fixedly connected. The bottom block is provided with a bottom block cavity, which extends to and communicates with the upper surface of the bottom block. A connecting block is provided inside the bottom block cavity, and the connecting block is connected to the screw through a cylindrical pin. The base is hinged to the bottom block.

7. The cylinder liner disassembly fixture as described in claim 6, characterized in that, The base and the bottom block are connected by a connecting pin.

8. The cylinder liner disassembly fixture as described in claim 6, characterized in that, The two support arms are a first support arm and a second support arm, respectively. The base is provided with a first adjustment hole and a second adjustment hole. The first support arm is slidably disposed in the first adjustment hole, and the second support arm is slidably disposed in the second adjustment hole. The first support arm is locked into the first adjustment hole using a first stud, and the second support arm is locked into the second adjustment hole using a second stud.

9. The cylinder liner disassembly fixture as described in claim 8, characterized in that, The end of the first adjustment hole furthest from the second adjustment hole is an arc-shaped structure; the end of the second adjustment hole furthest from the first adjustment hole is also an arc-shaped structure.

10. The cylinder liner disassembly fixture as described in claim 8, characterized in that, The free end of the first support arm is provided with a first support arm positioning stop, and the free end of the second support arm is provided with a second support arm positioning stop.

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