Hydraulic cylinder piston with sealing ring limiting mechanism

Abstract

The utility model discloses a hydraulic cylinder piston with sealing ring positioner relates to hydraulic cylinder production field, including piston main part, sealing structure sets up on piston main part, and sealing structure is used for forming sealing member on the outer wall of piston main part, lubricating structure sets up piston main part, and lubricating structure is used for lubricating the outside of piston main part, the utility model discloses through the injection hole and injects the lubricating oil in the oil storage groove inner chamber, and the oil storage cotton is stored to lubricating oil, and the piston main part is installed to the hydraulic cylinder, and the rubber block extrusion deformation makes that the through groove is deformed and expands at the expansion groove and arc groove, and the both sides of through groove inner wall are enlarged, and the lubricating oil in the oil storage groove flows out from the through groove, and the lubricating oil flows into between piston main part and the inner wall of hydraulic cylinder, and the lubricating treatment is carried out to the outer wall of piston main part, reduces the abrasion that piston main part receives, improves the service life of piston main part.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder manufacturing, and in particular to a hydraulic cylinder piston with a sealing ring limiting mechanism. Background Technology

[0002] Hydraulic cylinders are the core actuators in hydraulic systems. They convert hydraulic energy into mechanical energy through hydraulic pressure, enabling linear reciprocating motion or oscillation. By moving a piston inside the hydraulic cylinder, hydraulic oil is pushed and hydraulic pressure is transmitted.

[0003] The piston of the hydraulic cylinder fits tightly against the inner wall of the cylinder. As the piston moves within the cylinder, friction occurs between the piston and the inner wall of the cylinder. Due to the frictional resistance, the piston itself wears down after prolonged use, affecting its sealing performance and requiring replacement, thus reducing its service life. Summary of the Invention

[0004] The purpose of this invention is to provide a hydraulic cylinder piston with a sealing ring limiting mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic cylinder piston with a sealing ring limiting mechanism, comprising: Piston body; A sealing structure is disposed on the piston body, and the sealing structure is used to form a seal on the outer wall of the piston body; A lubrication structure is provided on the piston body, and the lubrication structure is used to lubricate the outer side of the piston body.

[0006] Preferably, the sealing structure includes: The mounting groove is located on the top of the outer wall of the piston body. The mounting grooves are arranged at equal intervals and are annular grooves. A sealing ring is slidably inserted into the mounting groove, and the sealing ring is arranged in a circular shape.

[0007] Preferably, the sealing structure further includes: The groove is formed on the outer wall of the piston body and is arranged in the form of an annular groove. The mounting hole is formed on the inner wall of the groove and is arranged in a through manner.

[0008] Preferably, the lubrication structure includes: Rubber blocks, which are fixedly connected to the inner wall of the groove in a ring array, and the outer side of the rubber blocks is arranged in an arc shape; An oil storage tank, wherein the oil storage tank is formed on a rubber block; The oil injection hole is located at the bottom end of the rubber block and is arranged in a cross shape.

[0009] Preferably, the lubrication structure further includes: Oil-absorbing cotton, wherein the oil-absorbing cotton is disposed in the inner cavity of the oil storage tank; A through groove is provided on the front side of the rubber block and is connected to the inner cavity of the oil storage tank. The through groove is elongated.

[0010] Preferably, the lubrication structure further includes: An expansion groove is formed at one end of a through groove, the expansion groove is V-shaped, and the expansion groove is located on the front side of the rubber block; An arc-shaped groove is provided on both sides of the inner wall of the through groove.

[0011] The technical effects and advantages of this utility model are as follows: This invention utilizes a combination of a rubber block, an oil injection hole, an oil storage tank, a through groove, an expansion groove, and an arc-shaped groove. Lubricating oil is injected into the inner cavity of the oil storage tank through the oil injection hole. The oil storage cotton stores the lubricating oil. When the piston body is installed in the hydraulic cylinder, the rubber block is compressed and deformed, causing the through groove to expand at the expansion groove and the arc-shaped groove. The lubricating oil in the oil storage tank flows out through the through groove, lubricating the outer wall of the piston body, reducing wear on the piston body, and improving the service life of the piston body. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the mounting groove structure of this utility model.

[0014] Figure 3 This is a front cross-sectional view of the rubber block of this utility model.

[0015] Figure 4 This is a top-view cross-sectional structural diagram of the rubber block of this utility model.

[0016] In the diagram: 1. Piston body; 2. Sealing structure; 21. Mounting groove; 22. Sealing ring; 23. Groove; 24. Mounting hole; 3. Lubrication structure; 31. Rubber block; 32. Oil reservoir; 33. Oil injection hole; 34. Oil storage cotton; 35. Through groove; 36. Expansion groove; 37. Arc groove. Detailed Implementation

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

[0018] This utility model provides, for example Figure 1-4 The hydraulic cylinder piston shown includes a piston body 1, a sealing structure 2, and a lubrication structure 3. The piston body 1 is connected to the piston rod of the hydraulic cylinder and runs inside the hydraulic cylinder. The sealing structure 2 is disposed on the piston body 1 and is used to form a seal on the outer wall of the piston body 1 to ensure the sealing between the piston body 1 and the inside of the hydraulic cylinder. The lubrication structure 3 is disposed on the piston body 1 and is used to lubricate the outer side of the piston body 1. The lubrication structure 3 delivers lubricating oil between the piston body 1 and the inner wall of the hydraulic cylinder, thereby lubricating the movement of the piston body 1 and reducing the wear on the piston body 1.

[0019] Furthermore, the sealing structure 2 includes a mounting groove 21, which is formed on the top of the outer wall of the piston body 1. The mounting grooves 21 are arranged at equal intervals and are annular in shape. The mounting grooves 21 are used to install and accommodate the sealing ring 22. Multiple mounting grooves 21 are arranged vertically on the piston body 1. The sealing ring 22 is slidably inserted into the mounting groove 21. The sealing ring 22 is annular in shape and is made of rubber composite material. It is installed in the mounting groove 21 to limit the installation of the sealing ring 22 and ensure its sealing. 22 As the piston body 1 moves stably, the outer wall of the sealing ring 22 fits tightly against the inner wall of the hydraulic cylinder using the elasticity of the sealing ring 22, ensuring the sealing performance of the piston body 1; Groove 23, groove 23 is formed on the outer wall of the piston body 1, groove 23 is set in an annular groove, groove 23 is used for the installation of piston body 1, and is used to accommodate lubrication structure 3; Mounting hole 24, mounting hole 24 is formed on the inner wall of groove 23, mounting hole 24 is set through, mounting hole 24 is used for the installation of piston body 1, facilitating the installation and connection of piston body 1 and piston rod.

[0020] Specifically, the lubrication structure 3 includes rubber blocks 31, which are fixedly connected to the inner wall of the groove 23 in a ring array. The outer side of the rubber blocks 31 is arc-shaped and can deform to a certain extent. Multiple rubber blocks 31 move together with the piston body 1 to store lubricating oil; an oil reservoir 32, which is formed on the rubber blocks 31 and is used to store lubricating oil; and an oil injection hole 33, which is formed at the bottom of the rubber blocks 31 and is cross-shaped. Lubricating oil is injected into the reservoir through the oil injection hole 33. When lubricating oil is injected into the oil reservoir 32, it compresses and deforms the oil injection hole 33, causing the oil injection hole 33 to expand. The deformation and rebound of the oil injection hole 33 then seals the oil reservoir 32, reducing the outflow of lubricating oil. An oil-retaining cotton 34 is placed inside the oil reservoir 32, filling the cavity to store the lubricating oil. A through-slot 35 is located on the front of the rubber block 31 and connects to the cavity of the oil reservoir 32. The through-slot 35 is elongated and allows lubricating oil to pass through the cavity of the oil reservoir 32. Lubricating oil flows out through the through groove 35 to lubricate the outer wall of the piston body 1. An expansion groove 36, V-shaped, is located at one end of the through groove 35 and is positioned on the front of the rubber block 31. When the piston body 1 is installed in the hydraulic cylinder, the rubber block 31 presses against the inner wall of the hydraulic cylinder, causing the expansion groove 36 to deform and expand to both sides, thus expanding the inner cavity of the through groove 35 and facilitating the outflow of lubricating oil from the oil reservoir 32. An arc-shaped groove 37 is located on both sides of the inner wall of the through groove 35, and its inner diameter is larger than that of the through groove. The width of the through groove 35 is expanded on both sides by the arc groove 37 to prevent the inner wall of the through groove 35 from sticking. Lubricating oil is injected into the inner cavity of the oil storage tank 32 through the oil injection hole 33. The oil storage cotton 34 stores the lubricating oil. The piston body 1 is installed in the hydraulic cylinder and the rubber block 31 is squeezed and deformed, so that the through groove 35 is deformed and expanded at the expansion groove 36 and the arc groove 37. The lubricating oil in the oil storage tank 32 flows out from the through groove 35 to lubricate the outer wall of the piston body 1, reduce the wear of the piston body 1, and improve the service life of the piston body 1.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic cylinder piston with a sealing ring limiting mechanism, characterized in that, include: Piston body (1); A sealing structure (2) is disposed on the piston body (1) and is used to form a seal on the outer wall of the piston body (1); A lubrication structure (3) is provided on the piston body (1) and is used to lubricate the outside of the piston body (1).

2. A hydraulic cylinder piston with a sealing ring limiting mechanism according to claim 1, characterized in that, The sealing structure (2) includes: The mounting groove (21) is located on the top of the outer wall of the piston body (1). The mounting grooves (21) are arranged at equal intervals and are annular grooves. A sealing ring (22) is slidably inserted into the mounting groove (21) and is arranged in a circular shape.

3. A hydraulic cylinder piston with a sealing ring limiting mechanism according to claim 2, characterized in that, The sealing structure (2) also includes: The groove (23) is formed on the outer wall of the piston body (1) and is an annular groove. Mounting hole (24) is formed on the inner wall of groove (23) and is through-hole.

4. A hydraulic cylinder piston with a sealing ring limiting mechanism according to claim 3, characterized in that, The lubrication structure (3) includes: Rubber blocks (31) are fixedly connected to the inner wall of the groove (23) in a ring array, and the outer side of the rubber blocks (31) is arranged in an arc shape; An oil storage tank (32) is provided on a rubber block (31); Oil injection hole (33) is located at the bottom end of rubber block (31) and is arranged in a cross shape.

5. A hydraulic cylinder piston with a sealing ring limiting mechanism according to claim 4, characterized in that, The lubrication structure (3) also includes: Oil storage cotton (34), wherein the oil storage cotton (34) is disposed in the inner cavity of the oil storage tank (32); The through groove (35) is located on the front of the rubber block (31) and is connected to the inner cavity of the oil storage tank (32). The through groove (35) is long and narrow.

6. A hydraulic cylinder piston with a sealing ring limiting mechanism according to claim 5, characterized in that, The lubrication structure (3) also includes: Expansion groove (36), the expansion groove (36) is opened at one end of the through groove (35), the expansion groove (36) is V-shaped, and the expansion groove (36) is located on the front side of the rubber block (31); Arc-shaped groove (37) is provided on both sides of the inner wall of the through groove (35).

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