Auxiliary tool for disassembling and assembling joint of piston assembly

Abstract

The utility model relates to the technical field of steering engine repair, in particular to a piston assembly joint dismounting auxiliary tool which comprises a fixed supporting block, the fixed supporting block comprises a first connecting rod, a clamping block located at the top of the first connecting rod and an adjusting block located at the bottom of the first connecting rod, and a supporting groove is formed in the top of the clamping block; the torque wrench head comprises a stress application block, I-shaped baffles arranged on the two sides of the stress application block, a second connecting rod connected with the top of the stress application block and a thickening block connected with the top of the second connecting rod, and a connecting groove is formed in the top of the thickening block; the stress application wrench comprises a lengthening rod and a connecting twisting block arranged on the side wall of one end of the lengthening rod. The tool has the characteristics of simple structure, convenience in operation, practicability and the like, and effectively solves the problems of difficulty in fixing, difficulty in applying torque, easiness in damaging products and the like in the disassembly and installation processes of the piston assembly joint. It is guaranteed that the disassembling process of the piston assembly is stable, efficient and safe, and the torque applying and measuring efficiency and precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steering gear repair, in particular to an auxiliary tool for disassembling and assembling a piston assembly joint. Background Art

[0002] In hydraulic steering gear and other actuators, piston components are widely used, such as Figure 1 As shown, it consists of a bracket 4, a sleeve 5, a connecting rod 6, and a joint 7. The quality of its disassembly and assembly affects the performance quality of the steering gear, and due to its high sealing requirements, special attention should be paid to its protection during the repair process. The piston assembly is the main component of the steering gear. Since most of the outer surface of the component is a sealing mating surface, it is difficult to fix it during the repair process. At the same time, the tightening torque of the joint is large, and it cannot be directly disassembled, and it is impossible to ensure the accurate application and measurement of the tightening torque of the joint during the assembly process.

[0003] According to the repair process requirements, the components need to be fixed while ensuring the quality of the sealing surface, so as to facilitate the disassembly and assembly of the joints and to facilitate the measurement of the tightening torque of the joints. Therefore, it is necessary to design auxiliary tools for disassembly and assembly of fixed joints in combination with the appearance structure of the piston assembly, so as to facilitate the fixing of the piston assembly, ensure the accurate application of the installation torque, and improve the efficiency and quality of disassembly and assembly. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a piston assembly joint disassembly and assembly auxiliary tool, which is convenient for fixing the piston assembly, accurately applying the installation torque, and improving the disassembly and assembly efficiency and quality.

[0005] The technical problem to be solved by the utility model is achieved by the following technical solutions:

[0006] A piston assembly joint disassembly and assembly auxiliary tool, comprising:

[0007] A fixed support block, the fixed support block comprising a first connecting rod, a clamping block located at the top of the first connecting rod, and an adjusting block located at the bottom of the first connecting rod, wherein the top of the clamping block is provided with a support groove having the same shape as the connecting rod in the piston assembly;

[0008] A torque wrench head, the torque wrench head comprising a force-adding block having a thickness consistent with the inner contour size of the joint in the piston assembly, an I-shaped baffle plate arranged on both sides of the force-adding block, a second connecting rod connected to the top of the force-adding block, and a thickened block connected to the top of the second connecting rod, wherein the top of the thickened block is provided with a connecting groove;

[0009] The force wrench comprises an extension rod with a thickness consistent with the inner contour size of a joint in a piston assembly, and a connecting torsion block arranged on a side wall of one end of the extension rod, wherein the connecting torsion block is consistent with the size and shape of the connecting groove.

[0010] The beneficial effects of the utility model are:

[0011] The utility model provides a piston assembly joint disassembly and assembly auxiliary tool, which has the characteristics of simple structure, convenient operation and practicality, and effectively solves the problems of difficult fixation, difficult torque application and easy damage to products during the disassembly and installation of the piston assembly joint. It ensures the stability, efficiency and safety of the piston assembly disassembly process, improves the efficiency and accuracy of torque application and measurement, and has good application prospects and significant economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 is a schematic diagram of the structure of the piston assembly;

[0014] Figure 2 It is a three-dimensional axonometric schematic diagram of the fixed support block in the utility model;

[0015] Figure 3 This is a schematic diagram of the main structure of the fixed support block in the utility model;

[0016] Figure 4 It is a three-dimensional isometric diagram of the torque wrench head in the utility model;

[0017] Figure 5 This is a schematic diagram of the main structure of the torque wrench head in the utility model;

[0018] Figure 6 It is a schematic diagram of the top view of the torque wrench head in the utility model;

[0019] Figure 7 It is a side view structural diagram of the torque wrench head in the utility model;

[0020] Figure 8 It is a three-dimensional isometric diagram of the force wrench in the utility model;

[0021] Fig. 9 This is a schematic diagram of the structure of the utility model in use Figure 1 ;

[0022] Fig.10 This is a schematic diagram of the structure of the utility model in use Figure 2 ;

[0023] Fig.11 This is a schematic diagram of the structure of the utility model in use Figure 3 ;

[0024] Fig.12 This is a schematic diagram of the structure of the utility model in use Figure 4 .

[0025] In the figure: 1. fixed support block; 101. support groove; 102. clamping block; 103. first connecting rod; 104. adjustment block; 2. torque wrench head; 201. connecting groove; 202. thickening block; 203. second connecting rod; 204. I-shaped baffle; 205. force block; 3. force wrench; 301. connecting torsion block; 302. extension rod; 4. bracket; 5. sleeve; 6. connecting rod; 7. joint. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figures 2 to 8 As shown, a piston assembly joint disassembly and assembly auxiliary tool includes a fixed support block 1, a torque wrench head 2, and a force wrench 3.

[0028] The fixed support block 1 includes a support groove 101 , a clamping block 102 , a first connecting rod 103 , and an adjusting block 104 .

[0029] The support groove 101 is arranged at the top of the clamping block 102, and the support groove 101 is consistent with the shape of the connecting rod 6 in the piston assembly. The support groove 101 is used to support the piston assembly, and only contacts the non-sealed part of the head of the connecting rod 6, ensuring that other parts of the piston assembly are not damaged.

[0030] The clamping block 102 is connected to the top of the first connecting rod 103. The height of the clamping block 102 does not exceed the vise clamping size, and the length of the first connecting rod 103 should be greater than the vise clamping depth. The adjusting block 104 is connected to the bottom of the first connecting rod 103. The adjusting block 104 enables the operator to adjust the fixed support block 1 when the clamping distance is small, so as to ensure that the upper surface of the clamping block 102 is horizontal to prevent the piston assembly from tipping over.

[0031] The torque wrench head 2 includes a connecting groove 201 , a thickening block 202 , a second connecting rod 203 , an I-shaped baffle 204 , and a force adding block 205 .

[0032] The connecting groove 201 is arranged at the top of the thickening block 202, and the connecting groove 201 is a square structure; the thickening block 202 is a cylindrical structure to prevent interference. The height of the thickening block 202 is greater than the depth of the connecting groove 201. The second connecting rod 203 is connected to the bottom of the thickening block 202, and the I-shaped baffle 204 is arranged on both sides of the force-adding block 205. The length of the I-shaped baffle 204 is greater than or equal to the outer diameter length of the cylinder on the joint 7, less than the size between the two ears on the bracket 4, and the same as the height of the connecting ear on the joint 7. The force-adding block 205 is connected to the bottom of the second connecting rod 203, and the length and width of the force-adding block 205 are consistent with the size between the connecting ears on the joint 7, and the same as the height of the connecting ears on the joint 7. The torque wrench head 2 applies force to the joint 7 through the I-shaped baffle 204, and the connection part between the torque wrench head 2 and the force-adding wrench 3 is raised through the second connecting rod 203, so as to ensure the accuracy of the force position and improve the accuracy of torque measurement.

[0033] The force wrench 3 includes a connecting torsion block 301 and an extension rod 302. The connecting torsion block 301 is arranged on the side wall of one end of the extension rod 302, and the connecting torsion block 301 is consistent with the shape, size and dimensions of the connecting groove 201. The height of the connecting torsion block 301 is less than the height of the thickening block 202. The extension rod 302 is a flat long rod structure, and its width is consistent with the internal dimensions between the lugs on the connector 7, which is convenient for applying a decomposition force to the connector 7, solving the problem of threaded parts and difficulty in applying force caused by long-term use.

[0034] The working principle and use process of this utility model:

[0035] When in use, clamp the fixed support block 1 on the vise, the clamping position is the flat position on both sides of the clamping block 102, adjust the angle by adjusting the block 104 so that the surface where the support groove 101 is located is flush with the upper surface of the vise, the support block is in a vertical state, tighten the vise to ensure that the fixed support block 1 is stably clamped; Fig. 9 As shown, the piston assembly is placed on the fixed support block 1, so that the connecting rod 6 fits with the support groove 101 to ensure that the piston assembly is stably placed on the fixed support block 1; after the piston assembly is stably placed, as shown in FIG. Fig.10 As shown, the force wrench 3 is installed on the joint 7, and the joint 7 can be easily disassembled; if the disassembly force is large, such as Fig.11 As shown, place the torque wrench head 2 between the two ears of the connector 7, and then Fig.12 As shown, the force wrench 3 is installed on the torque wrench head 2 and then disassembled.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A piston assembly joint disassembly and assembly auxiliary tool, characterized in that: include: A fixed support block (1), the fixed support block (1) comprising a first connecting rod (103), a clamping block (102) located at the top of the first connecting rod (103), and an adjusting block (104) located at the bottom of the first connecting rod (103), wherein the top of the clamping block (102) is provided with a supporting groove (101) having the same shape as the connecting rod (6) in the piston assembly; A torque wrench head (2), the torque wrench head (2) comprising a force-adding block (205) having a thickness consistent with the inner contour size of a joint (7) in a piston assembly, an I-shaped baffle (204) arranged on both sides of the force-adding block (205), a second connecting rod (203) connected to the top of the force-adding block (205), and a thickened block (202) connected to the top of the second connecting rod (203), wherein a connecting groove (201) is arranged on the top of the thickened block (202); The force wrench (3) comprises an extension rod (302) whose thickness is consistent with the inner contour size of a joint (7) in a piston assembly, and a connecting torsion block (301) arranged on the side wall of one end of the extension rod (302), wherein the connecting torsion block (301) is consistent in size and shape with the connecting groove (201).

2. A piston assembly joint disassembly and assembly auxiliary tool according to claim 1, characterized in that: The connecting groove (201) and the connecting twist block (301) are in a square structure.

3. A piston assembly joint disassembly and assembly auxiliary tool according to claim 1, characterized in that: The thickened block (202) is in a cylindrical structure.

4. The piston assembly joint disassembly and assembly auxiliary tool according to claim 1, characterized in that: The height of the thickened block (202) is greater than the height of the connecting twist block (301).

5. The piston assembly joint disassembly and assembly auxiliary tool according to claim 1, characterized in that: The length of the extension rod (302) is greater than twice the length of the bracket (4) in the piston assembly.

6. The piston assembly joint disassembly and assembly auxiliary tool according to claim 1, characterized in that: The extension rod (302) is a flat long rod-shaped structure.

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