Hydraulic cylinder with wear-resistant coating

Abstract

The hydraulic cylinder with the abrasion-resistant coating comprises a device body, a cylinder barrel is arranged in the device body, a piston rod is arranged in the cylinder barrel, installation grooves are formed in the left end and the right end of the cylinder barrel, a first oil seal and a second oil seal are arranged in the installation grooves, first screw holes are formed in the first oil seal and the second oil seal respectively, and a second screw hole is formed in the second oil seal. One end of the first oil seal is connected with a first hanging ring, an oil injection hole is formed in the cylinder barrel, a sealing plug is sealed in the oil injection hole and connected with an oil guide pipe, a sealing cover is arranged on the oil guide pipe, the two ends of the sealing cover are connected with L-shaped buckles, second screw holes are formed in the L-shaped buckles, and the second screw holes are connected with the oil seal. A medium can be supplemented to the device according to use requirements, the stability and safety of the device during operation are guaranteed, cavitation corrosion of the device is avoided, the service life of the device is prolonged, and abrasion among parts is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic cylinder technology, and specifically relates to a hydraulic cylinder with a wear-resistant coating. Background Technology

[0002] Hydraulic cylinders are the core actuators in hydraulic systems. They are linear motion devices that convert hydraulic energy into mechanical energy, primarily used to achieve linear reciprocating motion or oscillation, outputting force and displacement (or speed). Their working principle is based on Pascal's law, using the pressure of hydraulic oil to drive the piston or plunger, thereby propelling the load to perform work.

[0003] Existing hydraulic cylinders with wear-resistant coatings are inconvenient to inject media into the cylinder body as needed during use, which can easily lead to shutdowns. In addition, most of the lifting rings of existing hydraulic cylinders are integrated and non-removable structures, but the lifting rings are prone to breakage or wear after long-term use. If damage occurs, the entire device needs to be replaced, which increases the maintenance cost. Therefore, we need to upgrade and modify the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulic cylinder with a wear-resistant coating to solve the problems mentioned in the background art.

[0005] To solve the above problems, the following technical solutions are provided:

[0006] Design a hydraulic cylinder with a wear-resistant coating, comprising a device body, the device body containing a cylinder barrel, a piston rod inside the cylinder barrel, and mounting grooves at both ends of the cylinder barrel, an oil seal 1 and an oil seal 2 inside the mounting groove, each oil seal 1 and oil seal 2 having a threaded hole 1, a bolt 1 threaded into the threaded hole 1, a lifting ring 1 connected to one end of the oil seal 1, an oil filling hole inside the cylinder barrel, a sealing plug sealed inside the oil filling hole, an oil guide pipe connected to the sealing plug, a sealing cap on the oil guide pipe, L-shaped buckles connected to both ends of the sealing cap, a threaded hole 2 inside the L-shaped buckle, a threaded rod threaded into the threaded hole 2, a lifting ring 2 inserted into one end of the piston rod, a positioning hole inside the lifting ring 2, a positioning rod inserted into the positioning hole, a limiting hole inside the positioning rod, a limiting block inserted into the limiting hole, and a insertion hole inside the limiting block.

[0007] Furthermore, both oil seal one and oil seal two have countersunk grooves, and bolt one is installed in the countersunk grooves.

[0008] Furthermore, a sealing ring is connected to one end of the second oil seal, and the sealing ring is fixedly connected to the second oil seal.

[0009] Furthermore, a piston plate is connected to one end of the piston rod, and the piston plate is fixedly connected to the piston rod.

[0010] Furthermore, a rubber plug is inserted into the oil guide tube, and a sealing cap is fixedly connected above the rubber plug.

[0011] Furthermore, a pull ring is fixedly installed above the sealing cap.

[0012] Furthermore, dustproof rings are installed inside the first and second lifting rings, and the dustproof rings are movably engaged with the first and second lifting rings.

[0013] Furthermore, a knob is fixedly connected to one end of the threaded rod, and the knob has an anti-slip groove.

[0014] Furthermore, a second bolt is inserted into the insertion hole, and a washer is movably sleeved on the second bolt, and a nut is screwed onto the second bolt.

[0015] Furthermore, the surface of the device body is coated with an anti-corrosion and wear-resistant coating.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model, by setting an oil injection hole, sealing plug, oil guide pipe, rubber plug, sealing cap, L-shaped buckle, screw hole two, threaded rod, knob, anti-slip groove and pull ring, can replenish the medium of the device according to the use needs, ensuring the stability and safety of the device during operation, avoiding cavitation corrosion, extending the service life of the device, and reducing wear between parts.

[0018] 2. This utility model, by setting positioning holes, positioning rods, limiting holes, limiting blocks, insertion holes, bolts, washers, and nuts, enables the installation and fixation of the lifting ring of the device, making it convenient for users to disassemble and replace it individually in the future, reducing the cost of replacing parts, reducing downtime losses, improving the flexibility and applicability of the device, and avoiding affecting the operation of the overall equipment.

[0019] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 A perspective view of the overall structure of a hydraulic cylinder with a wear-resistant coating according to this utility model;

[0022] Figure 2 This is a cross-sectional view of the overall structure of a hydraulic cylinder with a wear-resistant coating according to the present invention.

[0023] Figure 3 An exploded view of the overall structure of a hydraulic cylinder with a wear-resistant coating according to this utility model;

[0024] Figure 4 This is an exploded cross-sectional view of the protective structure of a hydraulic cylinder with a wear-resistant coating according to the present invention.

[0025] Figure 5 This is an exploded view of the disassembly and assembly structure of a hydraulic cylinder with a wear-resistant coating according to the present invention.

[0026] In the diagram: 1. Device body; 2. Cylinder; 3. Piston rod; 4. Piston plate; 5. Mounting groove; 6. Oil seal one; 7. Lifting ring one; 8. Dust ring; 81. Countersunk groove; 9. Threaded hole one; 10. Bolt one; 11. Oil seal two; 12. Sealing ring; 13. Oil filling hole; 14. Sealing plug; 15. Oil guide pipe; 16. Rubber plug; 17. Sealing cap; 18. L-shaped buckle; 19. Threaded hole two; 20. Threaded rod; 21. Knob; 22. Anti-slip groove; 23. Pull ring; 24. Lifting ring two; 25. Positioning hole; 26. Positioning rod; 27. Limiting hole; 28. Limiting block; 29. ​​Insertion hole; 30. Bolt two; 31. Washer; 32. Nut. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] like Figure 1As shown in Figure 5, this embodiment provides a hydraulic cylinder with a wear-resistant coating, including a device body 1. The device body 1 contains a cylinder barrel 2, and a piston rod 3 is provided inside the cylinder barrel 2. Mounting grooves 5 are provided at both ends of the cylinder barrel 2. Oil seal 6 and oil seal 11 are provided in the mounting grooves 5. Both oil seal 6 and oil seal 11 have threaded holes 9. Bolts 10 are threaded into the threaded holes 9. One end of oil seal 6 is connected to a lifting ring 7. An oil filling hole 13 is provided inside the cylinder barrel 2. The oil filling hole 13 is sealed with a sealant. A plug 14 is connected to an oil guide pipe 15. A sealing cap 17 is provided on the oil guide pipe 15. Both ends of the sealing cap 17 are connected to L-shaped buckles 18. A second screw hole 19 is opened in the L-shaped buckle 18. A threaded rod 20 is screwed into the second screw hole 19. A second lifting ring 24 is inserted into one end of the piston rod 3. A positioning hole 25 is opened in the second lifting ring 24. A positioning rod 26 is inserted into the positioning hole 25. A limiting hole 27 is opened in the positioning rod 26. A limiting block 28 is inserted into the limiting hole 27. An insertion hole 29 is provided in the limiting block 28.

[0029] Preferably, both oil seal 6 and oil seal 11 have countersunk grooves 81, and bolts 10 are installed in the countersunk grooves 81. By setting the countersunk grooves 81, bolts 10 can be stored, preventing them from being exposed outside the device and affecting its aesthetics. One end of oil seal 11 is connected to a sealing ring 12, which is fixedly connected to oil seal 11. By setting the sealing ring 12, the sealing performance of oil seal 11 is increased, reducing the possibility of oil leakage in cylinder 2. One end of piston rod 3 is connected to a piston plate 4, which is fixedly connected to piston rod 3, increasing the connection and intimacy between the devices.

[0030] Preferably, a rubber plug 16 is inserted into the oil guide tube 15, and a sealing cap 17 is fixedly connected above the rubber plug 16. By setting the rubber plug 16, the oil guide tube 15 can be sealed and protected, ensuring the safety of the device during use. A pull ring 23 is fixedly set above the sealing cap 17. By setting the pull ring 23, it is convenient for the user to pull and remove the rubber plug 16, providing convenience for the user.

[0031] Preferably, dustproof rings 8 are installed inside the lifting rings 7 and 24. The dustproof rings 8 are movably engaged with the lifting rings 7 and 24. By setting the dustproof rings 8, dust protection can be provided inside the lifting rings 7 and 24, reducing dust accumulation and extending the service life and working time of the device. A knob 21 is fixedly connected to one end of the threaded rod 20. The knob 21 has an anti-slip groove 22. The knob 21 facilitates user control and use of the device, and the anti-slip groove 22... To prevent users from slipping or having difficulty turning the knob 21, a bolt 30 is inserted into the insertion hole 29. A washer 31 is movably fitted on the bolt 30, and a nut 32 is screwed onto the bolt 30. By setting the nut 32, the bolt 30 can be pre-tightened and limited, ensuring the safety and stability of the bolt 30 during use. By setting the washer 31, the nut 32 is prevented from being squeezed and worn during the pre-tightening process. The surface of the device body 1 is coated with an anti-corrosion and wear-resistant coating.

[0032] The working principle and operation process of this utility model are as follows: When refueling the device, the user rotates the threaded rod 20 out of the threaded hole 19 using the knob 21. After removal, the user pulls the pull ring 23 upwards, which moves the sealing cover 17, L-shaped buckle 18, and rubber plug 16 upwards until the rubber plug 16 is completely separated from the oil guide pipe 15. After separation, the user injects the required oil into the cylinder 2 through the oil guide pipe 15 until the injection is complete. After injection, the rubber plug 16 is reset. This allows for the replenishment of the medium as needed, ensuring the stability and safety of the device during operation, preventing cavitation corrosion, extending the device's service life, and reducing wear between parts. When the device's lifting ring needs to be replaced, the user can... By using tools, bolt 10 can be removed by rotating it into screw hole 9 and countersunk groove 81 in sequence. After removal, the user can pull the lifting ring 7 outward to separate it from the device. After separation, the new lifting ring 7 can be reinstalled. Alternatively, nut 32 can be removed by rotating it off bolt 30 in sequence. After removal, washer 31 can be removed from bolt 30, and then limit block 28 can be pulled out from limit hole 27. After pulling it out, the user can pull positioning rod 26 out from positioning hole 25, and then lift ring 24 can be removed from piston rod 3. This allows for the installation and fixation of the device's lifting rings, facilitating individual disassembly and replacement by the user in the future, reducing parts replacement costs, minimizing downtime losses, improving the flexibility and applicability of the device, and avoiding impact on the overall equipment operation.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A hydraulic cylinder with a wear-resistant coating, characterized in that, The device includes a main body (1), which contains a cylinder (2). The cylinder (2) contains a piston rod (3) and mounting grooves (5) at both ends. The mounting grooves (5) contain an oil seal (6) and an oil seal (11). Both the oil seal (6) and the oil seal (11) have a screw hole (9). A bolt (10) is screwed into the screw hole (9). One end of the oil seal (6) is connected to a lifting ring (7). The cylinder (2) has an oil filling hole (13). A sealing plug (14) is sealed inside the oil filling hole (13). The sealing plug (14) is connected to... An oil guide pipe (15) is provided with a sealing cap (17). The sealing cap (17) is connected to L-shaped buckles (18) at both ends. A screw hole (19) is opened in the L-shaped buckle (18). A threaded rod (20) is screwed into the screw hole (19). A lifting ring (24) is inserted into one end of the piston rod (3). A positioning hole (25) is opened in the lifting ring (24). A positioning rod (26) is inserted into the positioning hole (25). A limiting hole (27) is opened in the positioning rod (26). A limiting block (28) is inserted into the limiting hole (27). A insertion hole (29) is provided in the limiting block (28).

2. A hydraulic cylinder with a wear-resistant coating according to claim 1, characterized in that, Both the first oil seal (6) and the second oil seal (11) are provided with countersunk grooves (81), and bolts (10) are installed in the countersunk grooves (81).

3. A hydraulic cylinder with a wear-resistant coating according to claim 1, characterized in that, One end of the second oil seal (11) is connected to a sealing ring (12), and the sealing ring (12) is fixedly connected to the second oil seal (11).

4. A hydraulic cylinder with a wear-resistant coating according to claim 1, characterized in that, One end of the piston rod (3) is connected to a piston plate (4), and the piston plate (4) is fixedly connected to the piston rod (3).

5. A hydraulic cylinder with a wear-resistant coating according to claim 1, characterized in that, A rubber plug (16) is inserted into the oil guide tube (15), and a sealing cap (17) is fixedly connected above the rubber plug (16).

6. A hydraulic cylinder with a wear-resistant coating according to claim 1, characterized in that, A pull ring (23) is fixedly installed above the sealing cap (17).

7. A hydraulic cylinder with a wear-resistant coating according to claim 1, characterized in that, Dustproof rings (8) are installed inside the first (7) and the second (24) of the lifting ring, and the dustproof rings (8) are movably engaged with the first (7) and the second (24) of the lifting ring.

8. A hydraulic cylinder with a wear-resistant coating according to claim 1, characterized in that, A knob (21) is fixedly connected to one end of the threaded rod (20), and an anti-slip groove (22) is provided on the knob (21).

9. A hydraulic cylinder with a wear-resistant coating according to claim 1, characterized in that, A bolt 2 (30) is inserted into the insertion hole (29), and a washer (31) is movably sleeved on the bolt 2 (30), and a nut (32) is screwed onto the bolt 2 (30).

10. A hydraulic cylinder with a wear-resistant coating according to claim 1, characterized in that, The surface of the device body (1) is coated with an anti-corrosion and wear-resistant coating.

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