Novel dismounting tool special for diesel engine valve spring

Abstract

The utility model provides a novel special disassembling tool for a diesel engine valve spring. The novel special disassembling tool comprises a disassembling assembly and a main body assembly, the dismounting and mounting assembly comprises an air cylinder body, a pressing plate body, a through groove, a sliding groove, a first sliding block, a through hole, a second sliding block, a first fixing bolt, a second fixing bolt and a kidney-shaped hole. The pressing plate comprises a pressing plate body, the top of the pressing plate body is provided with a kidney-shaped hole, the top of the pressing plate body is provided with a through groove, and a sliding groove is formed in the through groove. Compression force directly acts on the air cylinder through a compression supporting point, the situation that a supporting point bolt is clamped and broken in the air cylinder due to bending torque of a lever structure is avoided, through the kidney-shaped holes, the valve spring disassembling tool can rotate and stop at any angle in the plane, a plurality of valve springs in an engine can be rapidly disassembled, and the working efficiency is improved. Therefore, the working intensity of workers is relieved, and the working efficiency of the workers is improved.

Description

Technical Field

[0001] The utility model relates to a disassembly and assembly tool, in particular to a novel special disassembly and assembly tool for a diesel engine valve spring, belonging to the technical field of engine valve spring disassembly tools. Background Art

[0002] During the disassembly and assembly of the engine, the valve spring needs to be disassembled; the valve spring is located on the cylinder head inside the engine valve chamber cover. When disassembling the valve spring, the valve chamber cover is first disassembled, then the front wheel system and the chain chamber cover of the engine are disassembled, and finally the engine cylinder head is disassembled to disassemble the valve spring; currently, the valve spring is mostly disassembled using a bow-shaped valve spring disassembler, which has many disassembled parts, cumbersome work, time-consuming and laborious, and is prone to oil leakage after reassembly;

[0003] A Chinese patent publication (publication number: CN210500025U) discloses a self-locking lever valve spring disassembly and assembly tool, which is characterized in that it includes a fulcrum mechanism, a locking mechanism, a lever mechanism and a sliding mechanism, wherein the fulcrum mechanism is composed of a fixed handle, a fixed shaft and a fixed screw, the locking mechanism is composed of a locking handle, a return spring, a guide tube, a locking block, a rotating shaft and a limit lock block, the lever mechanism is composed of a lever, a bracket and a lever shaft, and the sliding mechanism is composed of a sliding handle, a slider, a vertical shaft, a bushing fixing screw and a bushing. The advantages of this utility model are that the valve spring can be disassembled and assembled without removing the engine cylinder head, saving working procedures; the self-locking device can realize single-person operation, saving manpower and simple operation. This utility model compresses the valve spring through a lever mechanism, thereby replacing the valve spring. This utility model uses a lever structure to disassemble the valve spring, which may easily cause safety hazards to the staff during the disassembly process, and the bending torque of the lever structure may easily cause the support point bolts to get stuck and break in the engine cylinder head; therefore, a new type of special disassembly and assembly tool for diesel engine valve springs is proposed. Utility Model Content

[0004] In view of this, the utility model provides a novel diesel engine valve spring special disassembly and assembly tool to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0005] The technical solution of the utility model is implemented as follows: a new type of special disassembly and assembly tool for diesel engine valve springs, including a disassembly and assembly component and a main body component;

[0006] The disassembly assembly comprises a cylinder body, a pressure plate body, a through slot, a slide slot, a first slider, a through hole, a second slider, a first fixing bolt, a second fixing bolt and a waist-shaped hole;

[0007] A waist-shaped hole is provided on the top of the pressure plate body, a through groove is provided on the top of the pressure plate body, a sliding groove is provided inside the through groove, the bottom of the first slider is slidably connected to the inside of the sliding groove, the bottom of the second slider is slidably connected to the inside of the sliding groove, and through holes are provided on the tops of the first slider and the second slider.

[0008] Further preferably, one end of the first fixing bolt passes through the interior of the first sliding block, and the outer side wall of the first fixing bolt is threadedly connected to the interior of the first sliding block.

[0009] Further preferably, one end of the second fixing bolt passes through the interior of the second sliding block, and an outer side wall of the second fixing bolt is threadedly connected to the interior of the second sliding block.

[0010] Further preferably, the main body assembly includes a cylinder fixing frame, a storage box, a fixing rod, a fixing plate, a pressure plate return spring, a first locking nut and a second locking nut; the outer side wall of the cylinder body is fixedly connected to the interior of the cylinder fixing frame, and the piston rod of the cylinder body is fixedly connected to the interior of the pressure plate body through the second locking nut.

[0011] Further preferably, one end of the fixing rod passes through the interior of the cylinder fixing bracket, and the outer side wall of the one end of the fixing rod is threadedly connected to the inner side wall of the first locking nut.

[0012] Further preferably, one end of the fixing rod passes through the inside of the waist-shaped hole, and one end of the fixing rod is fixedly connected to the top of the fixing plate.

[0013] Further preferably, an outer side wall of the pressure plate return spring is sleeved on one end of the fixing rod, and the bottom of the storage box is fixedly connected to the top of the cylinder fixing bracket.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] The utility model adopts a cylinder structure which not only saves effort but also allows the compression stroke to be stopped at any distance in the middle, thus realizing single-person operation. The compression force acts on the cylinder directly through the compression support point to avoid the support point bolt being stuck and broken in the cylinder due to the bending torque of the lever structure. Through the setting of the waist-shaped hole, it can be rotated and stopped at any angle in the plane, so that the utility model can conveniently and quickly disassemble multiple valve springs in a single engine, thereby reducing the work intensity of the staff and improving the work efficiency of the staff. By arranging a storage box on the top of the cylinder fixing frame, it is convenient for the staff to store the valve lock clip, thus avoiding the staff from losing the valve lock clip during the replacement process.

[0016] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a bottom view of the structure of the utility model;

[0020] Figure 3 It is a side structural diagram of the utility model;

[0021] Figure 4 This is a structural diagram of the disassembly and assembly components of the utility model.

[0022] Figure numerals: 101, disassembly and assembly component; 10, cylinder body; 11, pressure plate body; 12, through groove; 13, slide groove; 14, first slider; 15, through hole; 16, second slider; 17, first fixing bolt; 18, second fixing bolt; 19, waist-shaped hole; 201, main body component; 20, cylinder fixing frame; 21, storage box; 22, fixing rod; 23, fixing plate; 24, pressure plate return spring; 25, first locking nut; 26, second locking nut. DETAILED DESCRIPTION

[0023] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0024] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-4 As shown, the embodiment of the utility model provides a novel diesel engine valve spring special disassembly and assembly tool, including a disassembly and assembly component 101 and a main body component 201;

[0026] The disassembly assembly 101 includes a cylinder body 10, a pressure plate body 11, a through slot 12, a slide slot 13, a first slider 14, a through hole 15, a second slider 16, a first fixing bolt 17, a second fixing bolt 18 and a waist-shaped hole 19;

[0027] A waist-shaped hole 19 is provided at the top of the pressure plate body 11, a through groove 12 is provided at the top of the pressure plate body 11, a slide groove 13 is provided inside the through groove 12, the bottom of the first slider 14 is slidably connected to the inside of the slide groove 13, the bottom of the second slider 16 is slidably connected to the inside of the slide groove 13, and a through hole 15 is provided at the top of the first slider 14 and the second slider 16.

[0028] In one embodiment, one end of the first fixing bolt 17 passes through the interior of the first slider 14, and the outer side wall of the first fixing bolt 17 is threadedly connected to the interior of the first slider 14. The first fixing bolt 17 is fixed by the setting of the first slider 14. The position of the first fixing bolt 17 can be fixed by the setting of the first fixing bolt 17. When the first slider 14 needs to be moved, the first fixing bolt 17 is loosened so that the first slider 14 can move in the slide groove 13. When the first slider 14 moves to the specified position, the first fixing bolt 17 is tightened so that the first fixing bolt 17 fixes the position of the first slider 14, so that it can be adjusted according to the different positions of the valve spring of the diesel engine.

[0029] In one embodiment, one end of the second fixing bolt 18 passes through the interior of the second slider 16, and the outer side wall of the second fixing bolt 18 is threadedly connected to the interior of the second slider 16. The second fixing bolt 18 is fixed by the setting of the second slider 16. The position of the second slider 16 can be fixed by the setting of the second fixing bolt 18. When the second slider 16 needs to be moved, the second fixing bolt 18 is loosened so that the second slider 16 can move in the slide groove 13. When the second slider 16 moves to the specified position, the second fixing bolt 18 is tightened so that the second fixing bolt 18 fixes the position of the second slider 16, so that it can be adjusted according to the different sizes of the diesel engine valve spring.

[0030] In one embodiment, the main body component 201 includes a cylinder fixing frame 20, a storage box 21, a fixing rod 22, a fixing plate 23, a pressure plate return spring 24, a first locking nut 25 and a second locking nut 26; the outer wall of the cylinder body 10 is fixedly connected to the inside of the cylinder fixing frame 20, and the piston rod of the cylinder body 10 is fixedly connected to the inside of the pressure plate body 11 through the second locking nut 26. Through the setting of the cylinder fixing frame 20, the cylinder body 10 is fixed, and the piston rod of the cylinder body 10 is fixedly connected to the pressure plate body 11, and the cylinder body 10 is controlled to extend to drive the movement of the pressure plate body 11, so that the first slider 14 and the second slider 16 on the pressure plate body 11 press down the valve spring of the diesel engine, and stop after pressing down to a certain distance through the cylinder external controller, so as to remove the valve lock clip and the valve spring.

[0031] In one embodiment, one end of the fixing rod 22 passes through the interior of the cylinder fixing frame 20, and the outer wall of one end of the fixing rod 22 is threadedly connected to the inner wall of the first locking nut 25. Through the setting of the fixing rod 22, the cylinder fixing frame 20 is fixed, so that the cylinder body 10 can stably compress the valve spring of the diesel engine.

[0032] In one embodiment, one end of the fixing rod 22 passes through the inside of the waist-shaped hole 19, and one end of the fixing rod 22 is fixedly connected to the top of the fixing plate 23. The fixing rod 22 is connected to the cylinder fixing frame 20 and fixed by the waist-shaped hole 19 through the first locking nut 25, so that the utility model can be rotated and stopped at any angle in the plane, so that multiple valve springs on a single diesel engine can be quickly disassembled. Through the setting of the fixing rod 22, the fixing plate 23 is fixed. Through the setting of the fixing plate 23, the utility model can be fixedly connected to the disassembled diesel engine cylinder body, providing a support point for the device.

[0033] In one embodiment, the outer wall of the pressure plate return spring 24 is sleeved on one end of the fixing rod 22, and the bottom of the storage box 21 is fixedly connected to the top of the cylinder fixing frame 20. The setting of the fixing rod 22 fixes the pressure plate return spring 24. The pressure plate return spring 24 adopts a low elastic modulus, which is convenient for returning after compression. The setting of the cylinder fixing frame 20 fixes the storage box 21. The setting of the storage box 21 makes it easy for workers to store the valve lock clip during the disassembly and assembly of the diesel engine valve spring, thereby avoiding the loss of the valve lock clip during the replacement process.

[0034] When the utility model is working: the utility model is fixed on the disassembled diesel engine cylinder body through the fixing plate 23 to provide a support point for the device; one end of the fixing rod 22 is fixedly connected to the cylinder fixing frame 20 through the first locking nut 25 to provide a support point for the cylinder fixing frame 20; the cylinder fixing frame 20 and the fixing rod 22 are fixed through the first locking nut 25 using the waist-shaped hole 19, so that the cylinder fixing frame 20 can rotate and stay in the plane at will, so that multiple valve springs of a single cylinder of the diesel engine can be quickly disassembled; the first slider 14 can be moved in the slide groove 13 by loosening the first fixing bolt 17; when the first slider 14 moves to the specified position, the first fixing bolt 17 is tightened so that the first fixing bolt 17 fixes the position of the first slider 14, and the first fixing bolt 17 is fixed to the position of the first slider 14. By loosening the second fixing bolt 18, the second slider 16 can move in the slide groove 13. When the second slider 16 moves to the specified position, the second fixing bolt 18 is tightened so that the second fixing bolt 18 fixes the position of the second slider 16, so that the size of the through hole 15 can be adjusted according to the size of the diesel engine valve spring. The cylinder body 10 is controlled to drive the pressure plate body 11 to press down, so that the first slider 14 and the second slider 16 are aligned with the compressed valve spring. After being pressed down to a certain distance, the cylinder body 10 is stopped by the external controller of the cylinder body 10, and then the valve lock clip and the valve spring are taken out. Through the setting of the storage box 21, the disassembled valve lock clip and valve spring can be stored, thereby reducing the work intensity of the staff and improving the work efficiency of the staff.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A new type of special disassembly and assembly tool for diesel engine valve springs, characterized by: It comprises a disassembly assembly component (101) and a main body component (201); The disassembly assembly (101) comprises a cylinder body (10), a pressure plate body (11), a through groove (12), a slide groove (13), a first slider (14), a through hole (15), a second slider (16), a first fixing bolt (17), a second fixing bolt (18) and a waist-shaped hole (19); A waist-shaped hole (19) is provided at the top of the pressure plate body (11), a through groove (12) is provided at the top of the pressure plate body (11), a slide groove (13) is provided inside the through groove (12), the bottom of the first slider (14) is slidably connected to the inside of the slide groove (13), the bottom of the second slider (16) is slidably connected to the inside of the slide groove (13), and the tops of the first slider (14) and the second slider (16) are both provided with through holes (15).

2. A new type of special disassembly and assembly tool for valve springs of diesel engines according to claim 1, characterized in that: One end of the first fixing bolt (17) passes through the interior of the first sliding block (14), and the outer side wall of the first fixing bolt (17) is threadedly connected to the interior of the first sliding block (14).

3. A new type of special disassembly and assembly tool for valve springs of diesel engines according to claim 2, characterized in that: One end of the second fixing bolt (18) passes through the interior of the second sliding block (16), and the outer side wall of the second fixing bolt (18) is threadedly connected to the interior of the second sliding block (16).

4. A new type of special disassembly and assembly tool for valve spring of diesel engine according to claim 1, characterized in that: The main body component (201) includes a cylinder fixing frame (20), a storage box (21), a fixing rod (22), a fixing plate (23), a pressure plate return spring (24), a first locking nut (25) and a second locking nut (26); the outer side wall of the cylinder body (10) is fixedly connected to the inside of the cylinder fixing frame (20), and the piston rod of the cylinder body (10) is fixedly connected to the inside of the pressure plate body (11) via the second locking nut (26).

5. A new type of special disassembly and assembly tool for valve springs of diesel engines according to claim 4, characterized in that: One end of the fixing rod (22) passes through the interior of the cylinder fixing frame (20), and the outer side wall of one end of the fixing rod (22) is threadedly connected to the inner side wall of the first locking nut (25).

6. A new type of special disassembly and assembly tool for diesel engine valve spring according to claim 5, characterized in that: One end of the fixing rod (22) passes through the inside of the waist-shaped hole (19), and one end of the fixing rod (22) is fixedly connected to the top of the fixing plate (23).

7. A new type of special disassembly and assembly tool for valve springs of diesel engines according to claim 6, characterized in that: The outer side wall of the pressure plate return spring (24) is sleeved on one end of the fixing rod (22), and the bottom of the storage box (21) is fixedly connected to the top of the cylinder fixing frame (20).

Images