A hydraulic oil cylinder guide sleeve dismounting machine

Abstract

The utility model discloses a hydraulic oil cylinder guide sleeve dismounting machine, including mobile main part, the upper surface of mobile main part is provided with the stop gear, the upper surface of mobile main part still is provided with drive assembly, the stop gear includes two clamping plates of symmetry installation on mobile main part, and the one end of two clamping plates away from mobile main part is provided with the hook claw part, drive assembly includes the drive structure of installation on the upper surface of mobile main part, and the one end of drive structure is provided with the end of top block away from drive structure and the one end of piston rod abuts, the utility model discloses the design structure is reasonable through installing a group of symmetrical clamping plates on mobile main part, and the hook claw part is provided with in the end of clamping plate, simultaneously still being provided with drive structure and top block on mobile main part to make the hook claw part hook the guide sleeve, make drive structure slowly push piston rod through top block, and then make piston rod and guide sleeve separate, solve the problem of the damage of easy to cause and increase repair cost of dismounting with the tool of copper bar and iron hammer etc.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to a hydraulic cylinder guide sleeve disassembly and assembly machine. Background Technology

[0002] As a key component of hydraulic cylinders, the guide sleeve is installed at the front end of the cylinder barrel to guide and seal the piston rod. Its fit with the piston rod directly determines the quality of the cylinder seal. After a period of use, the seal ring will wear out and there will be a certain gap between it and the guide sleeve. Hydraulic oil can easily flow out from the contact surface between the seal ring and the piston rod, causing hydraulic oil leakage in the hydraulic cylinder. Therefore, in daily maintenance, the guide sleeve needs to be disassembled and reassembled to check for wear.

[0003] Currently, hydraulic cylinder guide sleeves are mostly disassembled and assembled using tools such as copper rods and hammers. During the disassembly process, the copper rod needs to be continuously struck with the hammer. If the copper rod / hammer is not properly controlled, it is easy to directly strike the guide sleeve or piston rod, causing damage to the guide sleeve and piston rod, resulting in increased maintenance costs. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a hydraulic cylinder guide sleeve disassembly and assembly machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A hydraulic cylinder guide sleeve disassembly and assembly machine includes a moving body, a limiting mechanism provided on the upper surface of the moving body for limiting the guide sleeve of the cylinder, and a driving component provided on the upper surface of the moving body for pressing against the piston rod of the cylinder to disassemble the guide sleeve and the piston rod. The limiting mechanism includes two locking plates symmetrically installed on the moving body. Each locking plate has a claw portion at the end away from the moving body for limiting the guide sleeve. The drive assembly includes a drive structure mounted on the upper surface of the moving body. One end of the drive structure is provided with a top block, and the end of the top block away from the drive structure abuts against one end of the piston rod, so that the piston rod is pushed and pressed by the hook portion to the guide sleeve, thereby disassembling and separating the piston rod and the guide sleeve.

[0006] Furthermore, a first fixing plate is fixedly connected to the top of the moving body. The first fixing plate is U-shaped and its interior is detachably connected to one side of the card plate for card plate installation and fixing.

[0007] Furthermore, the upper surface of the card plate is provided with several first positioning holes, the upper surface of the first fixing plate is provided with second positioning holes, and the first fixing plate is also provided with fasteners for passing through the second positioning holes and the first positioning holes to fix the card plate.

[0008] Furthermore, a third fixing plate is fixedly connected to the upper surface of the moving body, and one side of the third fixing plate is fixedly installed with the driving structure through a second fixing plate.

[0009] Furthermore, the upper surface of the third fixing plate is provided with several third positioning holes, and the third fixing plate and the second fixing plate are fixedly installed through the third positioning holes; One end of the drive structure is connected to a fixing block, which is slidably connected to the third fixing plate so that the position of the drive structure on the third fixing plate can be adjusted through several third positioning holes and the fixing block.

[0010] Furthermore, the moving main body is connected to a telescopic component, and a symmetrical adjustment component is provided on one side of the telescopic component. Guide wheels are provided on the side of the two adjustment components that are close to each other, so that the two guide wheels are clamped on the surface of the piston rod and play a positioning role.

[0011] Furthermore, the telescopic component includes a threaded rod, both ends of which are rotatably connected to the moving body. A push frame is threadedly connected to the outer surface of the threaded rod, one end of which penetrates the moving body. An adjustment component is symmetrically connected to the side of the push frame away from the moving body.

[0012] Furthermore, the adjustment assembly includes a first support frame mounted on top of the push frame, a buffer structure on one side of the first support frame, a second support frame on one side of the buffer structure, and the top of the second support frame being rotatably connected to the guide wheel.

[0013] Compared with existing technologies, this hydraulic cylinder guide sleeve disassembly and assembly machine has the following advantages: I. This utility model solves the problem that using existing tools such as copper rods and hammers for disassembly and assembly can easily cause damage and increase maintenance costs. It installs a set of symmetrical clamping plates on the moving main body and provides hook claws at the ends of the clamping plates. At the same time, the moving main body is also provided with a drive structure and a top block. This allows the hook claws to hook onto the guide sleeve, and the drive structure to slowly push the piston rod through the top block, thereby separating the piston rod from the guide sleeve.

[0014] II. The card plate of this utility model is installed on the moving body through the first fixing plate, and the card plate and the first fixing plate are respectively provided with a number of first positioning holes and second positioning holes, and are connected and fixed by pins, so that the side of the card plate away from the hook claw is installed on the moving body. By adjusting the corresponding first positioning holes and second positioning holes between the card plate and the first fixing plate, it is convenient to adjust the opening angle and effective length of the card plate to adapt to guide sleeves of various sizes. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2For the present utility model Figure 1 Enlarged schematic diagram of the structure at point A; Figure 3 This is a three-dimensional structural diagram of the card plate of this utility model; Figure 4 This is a three-dimensional structural diagram of the pusher frame of this utility model; Figure 5 This is a three-dimensional schematic diagram of the third fixing plate of this utility model.

[0016] In the diagram: 1. Piston rod; 2. Guide sleeve; 3. Top block; 4. Clamping plate; 5. First fixing plate; 6. Second fixing plate; 7. Drive structure; 8. Support plate; 9. Third fixing plate; 10. Guide wheel; 11. Fixing block; 12. Spring; 13. Claw part; 14. Push frame; 15. Threaded rod; 16. First support frame; 17. Second support frame; 18. Positioning rod. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] like Figure 1-5 As shown, this utility model provides a technical solution: a hydraulic cylinder guide sleeve disassembly and assembly machine, including a moving body, a limiting mechanism provided on the upper surface of the moving body for limiting the guide sleeve 2 of the cylinder, and a driving assembly provided on the upper surface of the moving body for pressing against the piston rod 1 of the cylinder to disassemble the guide sleeve 2 and the piston rod 1; the limiting mechanism includes two clamping plates 4 symmetrically installed on the moving body, and each clamping plate 4 has a hook portion 13 at the end away from the moving body for limiting the guide sleeve 2; the driving assembly includes a driving structure 7 installed on the upper surface of the moving body, and a top block 3 is provided at one end of the driving structure 7. The end of the top block 3 away from the driving structure 7 abuts against the end of the piston rod 1 so that the piston rod 1 is pressed and pushed by the hook portion 13 to disassemble and separate the piston rod 1 and the guide sleeve 2.

[0019] In use, the drive structure 7 employs a jack, with its top detachably connected to the top block 3 via bolts. The piston rod 1 and guide sleeve 2 are placed between two clamping plates 4, with the guide sleeve 2 positioned on the side of the hook claw 13 furthest from the jack, ensuring contact between the guide sleeve 2 and the hook claw 13, thus limiting its position. The jack then pushes the top block 3, causing it to press against one end of the piston rod 1, gradually pushing the piston rod 1 out onto the guide sleeve 2. This avoids damage caused by striking with a copper rod or hammer. The end of the top block 3 that contacts the piston rod 1 has an arc-shaped groove to facilitate movement. The end of the piston rod 1 is adapted, and a rubber protective pad is installed at the position where it contacts the piston rod 1 to protect the piston rod 1; a rubber protective pad is also installed on the surface of the claw part 13 to protect the guide sleeve 2; and the distance between the two claw parts 13 is greater than the diameter of the piston rod 1, so as to reduce friction when the piston rod 1 is pushed out, thus protecting the piston rod 1; the moving body includes four support plates 8, which are welded and fixed to each other, and one of the support plates 8 has a handle on one side and a roller installed at the bottom to facilitate the movement and adjustment of the device.

[0020] The top of the movable body is fixedly connected to a first fixing plate 5, which is U-shaped. The interior of the first fixing plate 5 is detachably connected to one side of the card plate 4 for the installation and fixing of the card plate 4. The upper surface of the card plate 4 is provided with several first positioning holes, and the upper surface of the first fixing plate 5 is provided with second positioning holes. The first fixing plate 5 also has fasteners for passing through the second positioning holes and the first positioning holes to fix the card plate 4.

[0021] In use, the fastener uses a threaded pin to connect with the first fixing plate 5, which improves the fixing effect; several first positioning holes and second positioning holes are arranged at equal distances along a straight line. By moving the position of the clamping plate 4, the different first positioning holes and different second positioning holes on the clamping plate 4 are matched accordingly, and then fixed by a pin (made of high-strength steel to avoid breakage), so as to adjust the effective length of the clamping plate 4 and the opening angle of the clamping plate 4; the first fixing plate 5 is welded to the support plate 8, and the two first fixing plates 5 are symmetrically distributed.

[0022] A third fixing plate 9 is fixedly connected to the upper surface of the moving body. One side of the third fixing plate 9 is fixedly installed to the drive structure 7 through a second fixing plate 6. In use, there are two third fixing plates 9, which are symmetrically distributed. There are two second fixing plates 6. The two second fixing plates 6 are fixed to the upper and lower surfaces of the third fixing plate 9 respectively by bolts, and the middle part of the second fixing plate 6 is pressed against the drive structure 7 to fix the drive structure 7.

[0023] The upper surface of the third fixing plate 9 is provided with several third positioning holes, and the third fixing plate 9 and the second fixing plate 6 are fixedly installed through the third positioning holes; one end of the driving structure 7 is connected to a fixing block 11, and the fixing block 11 is slidably connected to the third fixing plate 9 so that the position of the driving structure 7 on the third fixing plate 9 can be adjusted through the several third positioning holes and the fixing block 11.

[0024] In use, the second fixing plate 6 and the third fixing plate 9 are installed and fixed by screws passing through the screw threaded through the screw thread and connecting to the third positioning hole. The third positioning holes are evenly distributed along a straight line to facilitate the adjustment of the position of the second fixing plate 6. The part of the fixing block 11 above the third fixing plate 9 is provided with bolts. By rotating the bolts to push against the third fixing plate 9, the fixing block 11 is locked, thereby fixing the other end of the drive structure 7, improving stability, and facilitating the adjustment of the position of the drive structure 7. This allows for the adjustment of the distance between the hook claw part 13 on the card plate 4 and the top block 3 to accommodate the length of the piston rod 1.

[0025] The movable main body is connected to a telescopic component. A symmetrical adjustment component is provided on one side of the telescopic component. Guide wheels 10 are provided on the side of the two adjustment components that are close to each other, so that the two guide wheels 10 clamp the surface of the piston rod 1 and play a positioning role. When in use, the outer surface of the guide wheels 10 is provided with a protective sleeve to avoid damage to the surface of the piston rod 1 during clamping. At the same time, the clamping of the piston rod 1 by the two guide wheels 10 improves the accuracy and stability of the piston rod 1 during disassembly.

[0026] The telescopic assembly includes a threaded rod 15, both ends of which are rotatably connected to the moving body. A push frame 14 is threadedly connected to the outer surface of the threaded rod 15. One end of the push frame 14 passes through the moving body, and an adjustment assembly is symmetrically connected to the side of the push frame 14 away from the moving body.

[0027] In use, a rocker arm is provided at one end of the threaded rod 15 to facilitate the rotation of the threaded rod 15. The threaded rod 15 is rotatably connected to the support plate 8. The push frame 14 is U-shaped and extends upward at the end to install the adjustment component. The two ends of the U-shape pass through one of the support plates 8 and extend toward one side of the hook claw part 13. The rotation of the push frame 14 is restricted by the support plate 8, so that the push frame 14 moves on the threaded rod 15 to adjust the distance between the guide wheel 10 and the support plate 8. The adjustment assembly includes a first support frame 16 mounted on the top of the push frame 14, a buffer structure on one side of the first support frame 16, a second support frame 17 on one side of the buffer structure, and the top of the second support frame 17 being rotatably connected to the guide wheel 10.

[0028] In use, the top of the first support frame 16 is provided with several fourth positioning holes. The first support frame 16 is fixedly connected to the push frame 14 by bolts and fasteners passing through the fourth positioning holes, thereby fixing the first support frame 16 to the push frame 14. At the same time, the fourth positioning holes are evenly distributed to facilitate the distance between the two first support frames 16. The buffer structure includes a positioning rod 18, which is T-shaped and passes through one side of the first support frame 16 and is fixedly connected to the second support frame 17. A spring 12 is sleeved on the outside of the positioning rod 18, and one end of the spring 12 is fixedly connected to the positioning rod 18 and the other end is fixedly connected to the first support frame 16, so that the guide wheel 10 can provide preload and ensure stable contact between the guide wheel 10 and the piston rod 1.

Claims

1. A hydraulic cylinder guide sleeve disassembly and assembly machine, characterized in that: The moving body includes a limiting mechanism on its upper surface for limiting the guide sleeve (2) of the oil cylinder. The upper surface of the moving body is also provided with a driving component for pressing against the piston rod (1) of the oil cylinder to disassemble the guide sleeve (2) and the piston rod (1). The limiting mechanism includes two clamping plates (4) symmetrically installed on the moving body. Each of the two clamping plates (4) is provided with a claw part (13) at the end away from the moving body, which is used to limit the guide sleeve (2). The drive assembly includes a drive structure (7) mounted on the upper surface of the moving body. One end of the drive structure (7) is provided with a top block (3). The end of the top block (3) away from the drive structure (7) abuts against one end of the piston rod (1) so that the piston rod (1) is pressed and pushed by the guide sleeve (2) through the claw part (13), thereby disassembling and separating the piston rod (1) and the guide sleeve (2).

2. The hydraulic cylinder guide sleeve disassembly and assembly machine according to claim 1, characterized in that: The top of the moving body is fixedly connected to a first fixing plate (5), which is U-shaped. The interior of the first fixing plate (5) is detachably connected to one side of the card plate (4) for the installation and fixing of the card plate (4).

3. The hydraulic cylinder guide sleeve disassembly and assembly machine according to claim 2, characterized in that: The upper surface of the card plate (4) is provided with a plurality of first positioning holes, the upper surface of the first fixing plate (5) is provided with second positioning holes, and the first fixing plate (5) is also provided with fasteners for passing through the second positioning holes and the first positioning holes to fix the card plate (4).

4. The hydraulic cylinder guide sleeve disassembly and assembly machine according to claim 1, characterized in that: A third fixing plate (9) is fixedly connected to the upper surface of the moving body, and one side of the third fixing plate (9) is fixedly installed with the driving structure (7) through a second fixing plate (6).

5. The hydraulic cylinder guide sleeve disassembly and assembly machine according to claim 4, characterized in that: The upper surface of the third fixing plate (9) is provided with a plurality of third positioning holes, and the third fixing plate (9) and the second fixing plate (6) are fixedly installed through the third positioning holes; One end of the drive structure (7) is connected to a fixing block (11), which is slidably connected to the third fixing plate (9) so that the position of the drive structure (7) on the third fixing plate (9) can be adjusted by a number of third positioning holes and the fixing block (11).

6. The hydraulic cylinder guide sleeve disassembly and assembly machine according to claim 1, characterized in that: The moving body is connected to a telescopic component. A symmetrical adjustment component is provided on one side of the telescopic component. Guide wheels (10) are provided on the side of the two adjustment components that are close to each other, so that the two guide wheels (10) are clamped on the surface of the piston rod (1) to play a positioning role.

7. The hydraulic cylinder guide sleeve disassembly and assembly machine according to claim 6, characterized in that: The telescopic assembly includes a threaded rod (15), both ends of which are rotatably connected to the moving body. A pusher frame (14) is threadedly connected to the outer surface of the threaded rod (15). One end of the pusher frame (14) passes through the moving body. An adjustment assembly is symmetrically connected to the side of the pusher frame (14) away from the moving body.

8. The hydraulic cylinder guide sleeve disassembly and assembly machine according to claim 7, characterized in that: The adjustment assembly includes a first support frame (16) mounted on the top of the push frame (14), a buffer structure is provided on one side of the first support frame (16), and a second support frame (17) is provided on one side of the buffer structure. The top of the second support frame (17) is rotatably connected to the guide wheel (10).

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