Installation tool for assembling oil cylinder base assembly

Abstract

The invention discloses a mounting tool for assembling an oil cylinder seat assembly, and belongs to the field of oil cylinder seat assembly assembling tools. The installation tool comprises a pull rod, a nut, a pressing sleeve and a cushion block, the nut is in threaded connection with the large-diameter section of the pull rod, the pressing sleeve and the cushion block form a whole to be arranged on the pull rod in a sleeving mode, and a threaded connector is arranged at the lower end of the small-diameter section of the pull rod and used for being fixedly connected with a pressing ring of the oil cylinder base assembly. The threaded connector is fixedly connected with the hold-down ring, the cushion block and the pressing sleeve are combined into a whole to be clamped between the nut and the upper end face of the oil cylinder base, the pull rod can move upwards by extruding the pressing sleeve when the nut is screwed, then a spring located between the oil cylinder base and the hold-down ring in the oil cylinder base assembly is compressed, and follow-up assembly of the oil cylinder base assembly is achieved. According to the structure, the problems that when a radial drilling machine is used for spring compression, the assembly site of the oil cylinder base assembly is limited, and the installation efficiency is low are solved.

Description

Technical Field

[0001] This invention relates to the field of hydraulic cylinder seat assembly assembly fixtures, specifically to an installation tool for assembling hydraulic cylinder seat assemblies. During the installation of hydraulic cylinder seat assemblies, the tool compresses and fixes the spring in the hydraulic cylinder seat assembly in a certain position, so that the hydraulic cylinder seat and the clamping ring fit together, thereby realizing the installation of the piston assembly. Background Technology

[0002] When assembling the cylinder seat assembly, the free springs within it must be compressed after overcoming their spring force, ensuring the springs remain in a compressed working state. This allows the cylinder seats and clamping rings at both ends of the springs in the cylinder seat assembly to fit together, enabling the installation of the piston assembly within the cylinder seat assembly. Due to the significant spring force, current installation methods typically employ a radial drilling machine for clamping. Specifically, the cylinder seat assembly is placed on the machine's worktable (with the clamping ring on the worktable, the cylinder seat above the clamping ring, and multiple springs installed in the spring mounting positions between the clamping ring and the cylinder seat). The radial drilling spindle applies downward pressure to the cylinder seat, compressing the springs and causing the cylinder seat and clamping ring to fit together. Only then can the piston assembly within the cylinder seat assembly be assembled (the piston assembly includes a T-bolt, a fastening nut, and a piston assembly; the T-bolt needs to pass sequentially through the fitting clamping ring and cylinder seat, then through the piston assembly, and finally be secured to the piston assembly via a fastening nut threaded onto the upper end of the piston assembly). This method uses a radial drilling machine to assemble the cylinder seat assembly, requiring at least two workers working together for approximately one hour to complete the installation, which is time-consuming and labor-intensive. Furthermore, the assembly is spatially limited, only possible within a factory building, and cannot meet the assembly needs for field maintenance, impacting product repair efficiency. Therefore, this assembly method suffers from limitations in assembly space and operation, low equipment operation and installation safety, and low assembly efficiency.

[0003] Therefore, there is a need to provide an installation tool for assembling hydraulic cylinder seat assemblies to solve the above problems. This tool can assemble hydraulic cylinder seat assemblies without relying on a radial drilling machine, is not limited by the installation site, and can improve installation efficiency. Summary of the Invention

[0004] The technical problem to be solved: To overcome the shortcomings of existing technologies, this invention provides an installation tool for assembling hydraulic cylinder seat assemblies. Through the structural design of the installation tool, the assembly operation of the cylinder seat assembly can be realized in any location environment, avoiding the problems of limited space and low installation efficiency that exist when using a radial drilling machine to assemble hydraulic cylinder seat assemblies.

[0005] The technical solution of the present invention is: an installation tool for assembling a hydraulic cylinder seat assembly, comprising: The tie rod is a stepped rod with a radially protruding limiting part in the middle. One side of the limiting part is a large diameter section and the other side is a small diameter section. The large diameter section is provided with external threads, and the end of the small diameter section away from the limiting part is provided with a threaded connector. Nuts are fitted onto the large-diameter section and connected to the threaded connection of the large-diameter section. The pressure sleeve is a cylindrical structure, which is slidably fitted onto the pull rod. The end of the pressure sleeve facing the nut has a converging opening, which is used to cooperate with the limiting part to prevent the pressure sleeve from disengaging from the pull rod through the small diameter section; the end of the pressure sleeve facing away from the nut is open. And a pad, which is slidably fitted onto the small diameter section and detachably fixedly connected to the open end of the pressure sleeve; The small-diameter section is inserted vertically into the cylinder seat assembly from top to bottom. Its threaded connector is used to fix and connect with the clamping ring of the cylinder seat assembly. The pad and the pressure sleeve are combined as a whole and clamped between the nut and the upper end face of the cylinder seat. The nut is used to squeeze the pressure sleeve and pull the pull rod upward when it is turned, thereby compressing the spring.

[0006] A further technical solution of the present invention is: it also includes a pin, which is installed at the end of the large-diameter section away from the limiting part, and the pin is used for hand-operated operation of the lever rotation.

[0007] A further technical solution of the present invention is: the end of the large-diameter section is provided with a plug hole, the plug hole being perpendicular to the axis of the pull rod; one end of the pin is provided with a plug-in part matching the diameter of the plug hole, the plug-in part being inserted into the plug hole and detachably connected thereto.

[0008] A further technical solution of the present invention is: the diameter of the limiting part is larger than the diameter of the large diameter section, and the diameter of the large diameter section is larger than the diameter of the small diameter section.

[0009] A further technical solution of the present invention is: the inner diameter of the cylinder of the pressure sleeve is larger than the diameter of the limiting part, the diameter of the converging opening of the pressure sleeve is larger than the diameter of the large diameter section and smaller than the diameter of the limiting part, and the open end of the pressure sleeve is provided with an internal thread, which is used for threaded connection with the pad block.

[0010] A further technical solution of the present invention is: the pad is a stepped cylindrical convex plug structure, which includes a convex plug part and a bottom arranged coaxially; the pad is provided with a central through hole along the axis, the central through hole is used to pass through the small diameter section of the pull rod; the convex plug part is inserted into the open end of the pressure sleeve, and the outer diameter of the convex plug part is provided with an external thread for connecting with the internal thread of the open end of the pressure sleeve; the stepped surface formed by the convex plug part and the bottom contacts the end face of the open end of the pressure sleeve.

[0011] A further technical solution of the present invention is that the pad material is polyvinyl fluoride.

[0012] A further technical solution of the present invention is: the nut is a knurled nut, and its outer surface has a textured structure, which is used to increase the friction during screwing.

[0013] A hydraulic cylinder seat assembly, adapted to an installation tool for assembling the hydraulic cylinder seat assembly, includes a clamping ring, a spring, and a hydraulic cylinder seat. The clamping ring and the hydraulic cylinder seat have a plurality of spring mounting holes on their opposite surfaces. The plurality of springs are placed between the clamping ring and the hydraulic cylinder seat, with one end of the spring located in the spring mounting hole of the clamping ring and the other end located in the spring mounting hole of the hydraulic cylinder seat. The spring mounting hole of the compression ring is provided with a first through hole at the center position. A threaded bushing is fixedly installed in the first through hole. The threaded bushing is provided with internal thread. The internal thread of the threaded bushing is threadedly connected to the threaded connector of the small diameter section. The cylinder seat is provided with a second through hole, which is coaxial with the first through hole. The second through hole is used to insert the small diameter section of the tie rod. The first and second through holes on the coaxial axis form a set of tooling mounting holes, and three sets of tooling mounting holes are evenly distributed on the cylinder seat assembly.

[0014] The beneficial effects of this invention are as follows: This invention provides an installation tool for assembling hydraulic cylinder seat assemblies. By using three sets of installation tools simultaneously, multiple springs in the hydraulic cylinder seat assembly are compressed, causing the cylinder seat and the clamping ring to align, thus enabling the installation of the piston assembly on the cylinder seat. This installation tool allows for manual operation in any environment, avoiding the need for spring compression using a radial drilling machine, thus freeing the assembly of the hydraulic cylinder seat assembly from site limitations. It solves the problems of limited assembly space, low assembly efficiency, and operational hazards associated with using a radial drilling machine during assembly.

[0015] This invention uses a pull rod to install the cylinder seat assembly. The threaded connector at the lower end of the pull rod is threadedly connected to the inner threaded bushing of the clamping ring, thus fixing the lower end of the pull rod and the clamping ring. A clamping sleeve and a pad are combined into an integral structure and sandwiched between the nut and the cylinder seat. Adjusting the nut makes the pad and the upper surface of the cylinder seat fit together. With the cylinder seat fixed in position, turning the nut will pull the clamping ring upwards towards the cylinder seat via the pull rod, thereby compressing the spring and achieving a fit between the clamping ring and the cylinder seat. This invention uses three sets of installation tools evenly distributed around the circumference of the cylinder seat assembly and used simultaneously, ensuring the stable clamping of multiple springs.

[0016] In this invention, the pressure sleeve and the pad are threaded together, which facilitates the replacement of the pad. The gasket is made of polyvinyl fluoride, which can prevent damage to the paint surface of the cylinder seat during use.

[0017] This invention features a compact tooling structure that is convenient and quick to operate, reducing operator workload and production time, thereby increasing production efficiency and lowering production costs. Traditional methods using radial drilling machines to assemble hydraulic cylinder seat components require at least two workers working together for approximately one hour to complete the installation. However, using this invention's installation tool, only one worker is needed to complete the assembly in about 20 minutes. Furthermore, this installation tool is not limited by space or location and can also be used for field repairs and maintenance, ensuring product usability and upkeep. Since its introduction, this tool has been used to install over 100 hydraulic cylinder seat components, proving its mature usability and ease of operation, meeting various requirements for hydraulic cylinder seat component assembly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a top view of the cylinder seat assembly that needs to be installed in this invention; Figure 2 This is a cross-sectional schematic diagram of the cylinder seat assembly that needs to be installed in this invention; Figure 3 This is a schematic diagram of the overall structure of an installation tool for assembling a hydraulic cylinder seat assembly according to the present invention; Figure 4 This is a schematic diagram of the internal structure of an installation tool for assembling a hydraulic cylinder seat assembly according to the present invention; Figure 5 This is a schematic diagram of the tie rod structure in this invention; Figure 6 This is a schematic diagram of the pad block structure in this invention; Figure 7 This is a schematic diagram of the external structure of the pressure sleeve in this invention; Figure 8 This is a cross-sectional view of the pressure sleeve in this invention; Figure 9 This is a schematic diagram of the external structure of the nut in this invention; Figure 10 This is a cross-sectional view of the nut in this invention; Figure 11 This is a schematic diagram of the pin structure in this invention; Figure 12 This is a schematic diagram illustrating the installation and mating of the installation tool and the cylinder seat assembly of the present invention. Figure 13 This is a schematic diagram showing the state of the installation tool of the present invention after the spring is compressed.

[0020] In the diagram: 1. Cylinder seat, 11. Spring mounting hole of cylinder seat, 12. Second through hole, 13. Lightening groove, 2. Compression ring, 21. Spring mounting hole of compression ring, 22. First through hole, 23. Threaded bushing, 3. Spring, 4. Piston assembly, 5. Tie rod, 51. Limiting part, 52. Large diameter section, 521. Insertion hole, 53. Small diameter section, 531. Threaded connector, 6. Nut, 7. Pressure sleeve, 71. Converging end, 72. Internal thread, 8. Pad, 81. Protruding plug, 82. Bottom, 83. Center through hole, 9. Pin, 91. Insertion part. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] An embodiment of the mounting tool for assembling a hydraulic cylinder seat assembly according to the present invention is used for assembly. Figure 1 , Figure 2The cylinder seat assembly shown is a cylinder seat 1, a clamping ring 2, springs 3, and three sets of piston assemblies 4 mounted on the cylinder seat. The cylinder seat 1 is a hollow annular structure with four irregular relief grooves 13 on its outer circumference. The clamping ring 2 is annular and coaxially opposite to the cylinder seat 1. Twenty-four sets of spring mounting holes are provided on their opposing surfaces to hold 24 springs 3 between the clamping ring 2 and the cylinder seat 1. The spring mounting holes 21 of the clamping ring and 11 of the cylinder seat are paired one-to-one to form a set for mounting one spring 3; that is, one end of the spring 3 is located in the spring mounting hole 21 of the clamping ring, and the other end is located in the spring mounting hole 11 of the cylinder seat. Spring 3 is initially in a free state, and cylinder seat 1 and clamping ring 2 are spread apart by spring 3. During the assembly of cylinder seat assembly, 24 springs 3 need to be compressed to make the opposing surfaces of clamping ring 2 and cylinder seat 1 fit together before the piston assembly 4 can be installed. That is, the T-shaped screw in the piston assembly passes through the fitting clamping ring 2 and cylinder seat 1 in sequence, and then through the central through hole of the piston assembly. Then, the T-shaped screw is threadedly fastened to the upper end of the piston assembly by the fastening nut. In order to adapt to the installation tool of the present invention, the cylinder seat assembly has been modified accordingly without affecting the product function and main structure. That is, a first through hole 22 is provided at the center of the spring mounting hole 21 of the clamping ring. A threaded bushing 23 is fixedly installed in the first through hole 22. The threaded bushing 23 has internal threads. A second through hole 12 is provided on the cylinder seat 1. The second through hole 12 is coaxial with the first through hole 22. A pair of first through holes 22 and second through holes 12 arranged coaxially form a set of tooling mounting holes. Three sets of tooling mounting holes are evenly distributed around the cylinder seat assembly, which are used to cooperate with the installation tools of the present invention to achieve simultaneous clamping of the cylinder seat assembly using three sets of installation tools.

[0023] like Figure 3 , Figure 4 As shown, the installation tool for assembling the hydraulic cylinder seat assembly of the present invention includes a pull rod 5, a nut 6, a pressure sleeve 7, a pad 8, and a pin 9.

[0024] See also Figure 5 The pull rod 5 is a stepped cylindrical rod structure made of structural steel. A radially protruding limiting part 51 is located in the middle of the pull rod 5. One side of the limiting part 51 is a large-diameter section 52, and the other side is a small-diameter section 53. The diameter of the limiting part 51 is larger than that of the large-diameter section 52, and the diameter of the large-diameter section 52 is larger than that of the small-diameter section 53. The outer diameter of the large-diameter section 52 has external threads for threaded connection with the nut 6. The small-diameter section 53 is a smooth rod, and its end away from the limiting part 51 has a threaded connector 531, which is a section of external thread machined at the end of the small-diameter section 53. The threaded connector 531 is used for threaded connection with the threaded bushing 23 installed on the clamping ring 2. The end of the large-diameter section 52 away from the limiting part 51 has a through hole 521, which is perpendicular to the axis of the pull rod 5 and passes through the large-diameter section 52. The through hole 521 is used to install the pin 9.

[0025] In this embodiment, the main material of the pull rod 2 is 45 steel. The maximum outer diameter, i.e. the outer diameter of the limiting part 51, is φ15mm, and the total length is 166mm. The upper large diameter section 52 is a 77mm long screw structure with an M12 thread. The top end is a 16mm spherical surface. There is a through hole (i.e., insertion hole 521) with a diameter of φ4.1mm 8mm away from the top end. The lower part is the limiting part 51, which is a cylindrical structure with a length of 5mm and a diameter of φ15mm. Below the limiting part 51, there are cylindrical structures with a length of 70mm and a diameter of φ8mm, a length of 2mm and a diameter of φ10mm, and a length of 2mm and a diameter of φ6mm (forming a relief groove). The bottommost part is an M8 thread with a length of 10mm and a 15° chamfer with a length of 4mm (i.e., threaded connector 531), which is used to connect with the threaded bushing 23 on the clamping ring 2 in the cylinder seat assembly.

[0026] like Figure 11 As shown, the pin 9 is cylindrical, with a plug portion 91 at one end that matches the diameter of the socket 521. The plug portion 91 is inserted into the socket 521, enabling a detachable connection between the pin 9 and the pull rod 5. The pin 9 is used for hand-operated rotation of the pull rod 5.

[0027] In this embodiment, the pin 9 is a standard part, standard number HB382-1971. Its small end is the insertion part 91, and its large end has a textured surface to increase friction during screwing. The main material of the pin 9 is T7A steel. The outer diameter of the large end is φ8mm, the length is 50mm, and the outer surface has a textured surface with a depth of 0.6mm. The diameter of the small end insertion part 91 is φ4mm, and the length is 12mm.

[0028] like Figure 4 , Figure 9 and Figure 10 As shown, the nut 6 is a cylindrical structure, which is fitted onto the large diameter section 52. The threaded hole in the center of the nut 6 is engaged with the external thread of the large diameter section 52, and the two are threadedly connected. When the axial position of the nut 6 is fixed, rotating the nut 6 in the forward direction can cause the pull rod 5 to move upward along the axial direction.

[0029] In this embodiment, nut 6 is a knurled nut made of 45 steel, with a maximum outer diameter of φ100mm and a total length of 20mm. Its outer surface has a depth of 0.5mm and the knurled structure is used to increase the friction during screwing. The central threaded through hole is an M12 internal thread.

[0030] like Figure 4 , Figure 7 and Figure 8As shown, the pressure sleeve 7 is a cylindrical structure made of structural steel, with an internal cylindrical cavity. The pressure sleeve 7 is slidably fitted onto the pull rod 5. The end of the pressure sleeve 7 facing the nut 6 has a converging opening 71, while the end of the pressure sleeve 7 facing away from the nut 6 is open. The diameter of the converging opening 71 is larger than the diameter of the large-diameter section 52 and smaller than the diameter of the limiting part 51. Furthermore, the inner diameter of the cylindrical cavity inside the pressure sleeve 7 is larger than the diameter of the limiting part 51. This design allows the converging opening 71 to fit over the large-diameter section 52 and engage with the limiting part 51. When the pressure sleeve 7 moves axially along the pull rod 5, it is limited by the engagement of the converging opening 71 and the limiting part 51, preventing the pressure sleeve 7 from disengaging from the pull rod 5 in the direction of the small-diameter section 53. The open end of the pressure sleeve 7 has an internal thread 72 for threaded connection with the pad block 8.

[0031] In this embodiment, the material of the pressure sleeve 3 is 45 steel, the maximum outer diameter is φ27mm, the total length is 54mm, the upper converging opening 71 has a diameter of φ13mm and a length of 5mm, the internal cavity has a diameter of φ22mm and a length of 39mm, and the lower internal thread 72 is an M24×1 internal thread with a length of 10mm.

[0032] like Figure 4 , Figure 6 As shown, the pad 8 has a stepped cylindrical convex plug structure, including a coaxially arranged convex plug portion 81 and a bottom 82. The pad 8 has a central through hole 83 along its axis, through which the small-diameter section 53 of the pull rod passes, with a clearance fit between the two. The convex plug portion 81 is inserted into the open end of the pressure sleeve 7, and its outer diameter has external threads for engaging with the internal threads 72 of the open end of the pressure sleeve 7. When the pad 8 and the open end of the pressure sleeve 7 are connected in place, the stepped surface formed by the convex plug portion 81 and the bottom 82 contacts the end face of the open end of the pressure sleeve 7. The pad 8 and the pressure sleeve 7 form an integral structure, allowing them to slide axially along the pull rod 5 when the installation tool is not in operation. To prevent damage to the paint surface of the cylinder seat during installation, the pad 8 is made of polyvinyl fluoride (PVC).

[0033] In this embodiment, the maximum outer diameter of the pad 2 is φ27mm, the total length is 12mm, the external thread of the convex plug 81 is M24×1, and the length is 4mm; a hollow knife structure with a length of 2mm and a diameter of φ22mm is provided in the middle, the outer diameter of the bottom 82 is φ27mm, the length is 6mm, and the inner diameter of the central through hole 83 in the central part of the cylinder is φ10mm.

[0034] When using the installation tool, such as Figure 12As shown, first assemble the installation tool, then pass the lower end of the small diameter section 53 of the pull rod 5 through the second through hole 12 of the cylinder seat 1, and the spring 3 into the threaded bushing 23 of the clamping ring 2. Rotate the pin 9 to screw the threaded connector 531 and the threaded bushing 23 into place. Adjust the nut 6 so that the converging end 71 of the pressure sleeve 7 contacts the nut 6, and the pad 8 contacts the upper end face of the cylinder seat 1. At this point, the installation tool and cylinder seat assembly are complete. Since the position of the cylinder seat 1 is fixed, that is, the axial positions of the nut 6, pressure sleeve 7, and pad 8 are fixed at this time, by turning the nut 6 in the forward direction, the pull rod 5 can be moved axially upward, driving the clamping ring 2 upward. At this time, the spring 3 is compressed until the clamping ring 2 and the cylinder seat 1 are in contact. Figure 13 As shown, the subsequent assembly of the cylinder seat assembly, including its piston assembly, can then proceed.

[0035] When assembling the installation tools, first fit the pressure sleeve 7 onto the large-diameter section 52 of the pull rod 5, with the open end of the pressure sleeve 7 facing the pull rod 5, and insert it from the end of the large-diameter section 52. Next, fit the pad block 8 onto the small-diameter section 53, inserting the protruding plug 81 of the pad block 8 into the open end of the pressure sleeve 7 and threadedly connecting and securing it thereto. Then, thread the nut 6 onto the large-diameter section 52, and finally install the pin 9.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mounting tool for assembling a cylinder block assembly, characterized in that, include: The tie rod is a stepped rod with a radially protruding limiting part in the middle. One side of the limiting part is a large diameter section and the other side is a small diameter section. The large diameter section is provided with external threads, and the end of the small diameter section away from the limiting part is provided with a threaded connector. Nuts are fitted onto the large-diameter section and connected to the threaded connection of the large-diameter section. The pressure sleeve is a cylindrical structure. It is slidably fitted onto the pull rod. The end of the pressure sleeve facing the nut has a converging opening, which is used to cooperate with the limiting part to prevent the pressure sleeve from disengaging from the pull rod in the direction of the small diameter section. The end of the pressure sleeve facing away from the nut is open. And a pad, which is slidably fitted onto the small diameter section and detachably fixedly connected to the open end of the pressure sleeve; The small-diameter section is inserted vertically into the cylinder seat assembly from top to bottom. Its threaded connector is used to fix and connect with the clamping ring of the cylinder seat assembly. The pad and the pressure sleeve are combined as a whole and clamped between the nut and the upper end face of the cylinder seat. The nut is used to squeeze the pressure sleeve and pull the pull rod upward when it is turned, thereby compressing the spring.

2. The mounting tool for assembling a cylinder seat assembly according to claim 1, wherein It also includes a latch, which is installed at the end of the large-diameter section away from the limiting part, and the latch is used for hand operation of the lever rotation.

3. The installation tool for assembling the hydraulic cylinder seat assembly according to claim 2, characterized in that, The end of the large-diameter section is provided with a socket, which is perpendicular to the axis of the pull rod; one end of the pin is provided with a plug part that matches the diameter of the socket, and the plug part is inserted into the socket and detachably connected to it.

4. The installation tool for assembling the hydraulic cylinder seat assembly according to claim 1, characterized in that, The diameter of the limiting part is larger than the diameter of the large diameter section, and the diameter of the large diameter section is larger than the diameter of the small diameter section.

5. The installation tool for assembling the hydraulic cylinder seat assembly according to claim 1, characterized in that, The inner diameter of the sleeve cylinder is larger than the diameter of the limiting part. The diameter of the converging port of the sleeve is larger than the diameter of the large diameter section but smaller than the diameter of the limiting part. The open end of the sleeve is provided with internal thread, which is used for threaded connection with the pad block.

6. The installation tool for assembling the hydraulic cylinder seat assembly according to claim 5, characterized in that, The pad is a stepped cylindrical convex plug structure, which includes a convex plug part and a bottom arranged coaxially; the pad has a central through hole along the axis, which is used to pass through the small diameter section of the pull rod; the convex plug part is inserted into the open end of the pressure sleeve, and the outer diameter of the convex plug part has an external thread for connecting with the internal thread of the open end of the pressure sleeve; the stepped surface formed by the convex plug part and the bottom contacts the end face of the open end of the pressure sleeve.

7. The installation tool for assembling the hydraulic cylinder seat assembly according to claim 1, characterized in that, The pad material is polyvinyl fluoride.

8. The installation tool for assembling the hydraulic cylinder seat assembly according to claim 1, characterized in that, The nut is a knurled nut with a textured outer surface, which increases friction during tightening.

9. A hydraulic cylinder seat assembly, adapted to the installation tool for assembling the hydraulic cylinder seat assembly according to any one of claims 1-8, characterized in that, It includes a clamping ring, a spring, and a cylinder seat. The clamping ring and the cylinder seat have multiple spring mounting holes on their opposite surfaces. Multiple springs are placed between the clamping ring and the cylinder seat, with one end of the spring located in the spring mounting hole of the clamping ring and the other end located in the spring mounting hole of the cylinder seat. The spring mounting hole of the compression ring is provided with a first through hole at the center position. A threaded bushing is fixedly installed in the first through hole. The threaded bushing is provided with internal thread. The internal thread of the threaded bushing is threadedly connected to the threaded connector of the small diameter section. The cylinder seat is provided with a second through hole, which is coaxial with the first through hole. The second through hole is used to insert the small diameter section of the tie rod. The first and second through holes on the coaxial axis form a set of tooling mounting holes, and three sets of tooling mounting holes are evenly distributed on the cylinder seat assembly.

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