Search

CN-224214483-U - Oil cylinder cover assembly and oil cylinder

CN224214483UCN 224214483 UCN224214483 UCN 224214483UCN-224214483-U

Abstract

The utility model relates to the technical field of oil cylinders, in particular to an oil cylinder cover assembly and an oil cylinder, which comprise an oil cylinder cover body, wherein a storage groove is formed in the top surface of the oil cylinder cover body, a cover plate is sleeved on the top surface of the oil cylinder cover body, an oil filling port is formed in the surface of the cover plate, an oil absorption cotton ring is embedded in the inner annular surface of the top of the oil cylinder cover body, a cotton core is fixed on the outer annular surface of the oil absorption cotton ring, the bottom end of the cotton core extends into the bottom of the storage groove, and lubricating oil is filled in the storage groove; the sealing device has the beneficial effects that through the design of the embedded groove I and the sealing ring, the sealing with the top of the oil cylinder is tightly realized, and the leakage of hydraulic oil is effectively prevented. The inner diameter of the sealing ring is smaller than that of the oil cylinder cover body, so that the tight contact between the sealing ring and the piston rod is ensured, and the sealing performance is further improved.

Inventors

  • LIU CHENG
  • LIU XINYONG
  • FU JING

Assignees

  • 泰安市广宇液压机电有限公司

Dates

Publication Date
20260508
Application Date
20250617

Claims (8)

  1. 1. The oil cylinder cover assembly comprises an oil cylinder cover body (1) and is characterized in that a storage groove (5) is formed in the top surface of the oil cylinder cover body (1), a cover plate (6) is sleeved on the top surface of the oil cylinder cover body (1), an oil filling opening (15) is formed in the surface of the cover plate (6), an oil absorbing cotton ring (12) is embedded into the inner ring surface of the top of the oil cylinder cover body (1), a cotton core (14) is fixed on the outer ring surface of the oil absorbing cotton ring (12), the bottom end of the cotton core (14) extends into the bottom of the storage groove (5), and lubricating oil is filled in the storage groove (5).
  2. 2. The oil cylinder cover assembly according to claim 1, wherein the oil cylinder cover body (1) is a Chinese character 'zhong' shaped round tube, and a plurality of bolt holes (2) are formed in the surface of the oil cylinder cover body (1).
  3. 3. The oil cylinder cover assembly of claim 1, wherein the inner ring surface of the oil cylinder cover body (1) is provided with an embedded groove I (3), the embedded groove I (3) is an annular groove, the embedded groove I (3) is provided with two, the two embedded grooves I (3) are respectively distributed at the upper end and the lower end of the oil cylinder cover body (1), a sealing ring (4) is fixed in the embedded groove I (3), and the inner ring diameter of the sealing ring (4) is smaller than the inner ring diameter of the oil cylinder cover body (1).
  4. 4. The oil cylinder cover assembly according to claim 1, wherein the containing groove (5) is an annular groove, the cover plate (6) is an annular plate with an L-shaped section, a plurality of through holes (8) are formed in the surface of the cover plate (6), a screw rod (9) is inserted into the through holes (8), the height of the screw rod (9) is larger than the thickness of a top plate of the cover plate (6), and a nut (10) is sleeved on the top end of the screw rod (9).
  5. 5. The oil cylinder cover assembly according to claim 1, wherein the top plate bottom surface of the cover plate (6) is integrally formed with a plug ring (7), the plug ring (7) is a circular plate with an inverted isosceles trapezoid cross section, and the bottom end of the plug ring (7) is inserted into the accommodating groove (5).
  6. 6. The oil cylinder cover assembly according to claim 1, wherein the oil filling port (15) penetrates through the top plate of the plug ring (7) and the top plate of the cover plate (6), internal threads are formed in the inner wall of the oil filling port (15), the threaded end socket (16) is a T-shaped cylinder, external threads are formed on the surface of the threaded end socket (16), and the external threads are connected with the internal threads in a matched mode.
  7. 7. The oil cylinder cover assembly of claim 1, wherein the top end inner wall of the oil cylinder cover body (1) is provided with a second embedded groove (11), the second embedded groove (11) is an annular groove, an oil absorption cotton ring (12) is fixed in the second embedded groove (11), the inner annular diameter of the oil absorption cotton ring (12) is smaller than that of the oil cylinder cover body (1), a cotton core (14) penetrates through a through hole (13), the through hole (13) is formed in the side wall of the second embedded groove (11), and the through hole (13) is communicated with the second embedded groove (11) and the storage groove (5).
  8. 8. An oil cylinder, characterized by comprising the oil cylinder cover assembly according to any one of the claims 1-7.

Description

Oil cylinder cover assembly and oil cylinder Technical Field The utility model relates to the technical field of oil cylinders, in particular to an oil cylinder cover assembly and an oil cylinder. Background In a hydraulic system, an oil cylinder is a key component for converting hydraulic energy into mechanical energy and driving a piston rod to perform linear motion. The oil cylinder cover is used as an important component of the oil cylinder, so that not only is the tightness of the oil cylinder ensured and hydraulic oil leakage prevented, but also the lubrication problem of the piston rod in the reciprocating motion process is considered. Traditional oil cylinder cover designs only pay attention to sealing performance, and hydraulic oil in the oil cylinder can not leak through sealing elements such as sealing rings. However, this design often ignores the lubrication problem of the piston rod. During the reciprocating movement of the piston rod, if insufficient lubrication is provided, friction is increased, abrasion is increased, and even normal operation of the hydraulic system is affected. In order to solve the problem of lubrication of the piston rod, some oil cylinder covers are designed to adopt an external lubrication mode, namely, a lubrication device is arranged outside an oil cylinder, and the piston rod is lubricated by periodically smearing lubricating oil. However, this method has the disadvantages of complicated operation, uneven lubrication, and the like, and it is difficult to ensure that the lubricating oil can be continuously and stably smeared on the piston rod. Therefore, there is a need in the market for a cylinder head assembly that can ensure both cylinder sealing performance and piston rod self-lubrication. Disclosure of utility model The utility model aims to provide a cylinder cover assembly and a cylinder, which are used for solving the problems in the background art. In order to achieve the purpose, the oil cylinder cover assembly comprises an oil cylinder cover body, wherein a storage groove is formed in the top surface of the oil cylinder cover body, a cover plate is sleeved on the top surface of the oil cylinder cover body, an oil filling port is formed in the surface of the cover plate, an oil absorption cotton ring is embedded in the inner ring surface of the top of the oil cylinder cover body, a cotton core is fixed on the outer ring surface of the oil absorption cotton ring, the bottom end of the cotton core extends into the bottom of the storage groove, and lubricating oil is filled in the storage groove. Preferably, the oil cylinder cover body is a hollow circular tube, and a plurality of bolt holes are formed in the surface of the oil cylinder cover body. Preferably, the inner ring surface of the oil cylinder cover body is provided with first embedded grooves which are annular grooves, the first embedded grooves are respectively distributed at the upper end and the lower end of the oil cylinder cover body, the first embedded grooves are internally fixed with sealing rings, and the inner ring diameter of the sealing rings is smaller than the inner ring diameter of the oil cylinder cover body. Preferably, the storage groove is an annular groove, the cover plate is an annular plate with an L-shaped section, a plurality of through holes are formed in the surface of the cover plate, a screw is inserted into the through holes, the height of the screw is larger than the thickness of a top plate of the cover plate, and a nut is sleeved at the top end of the screw. Preferably, a plug ring is integrally formed on the bottom surface of the top plate of the cover plate, the plug ring is a circular ring plate with an inverted isosceles trapezoid cross section, and the bottom end of the plug ring is inserted into the storage groove. Preferably, the oil filling port penetrates through the top plate of the plug ring and the cover plate, an inner thread is arranged on the inner wall of the oil filling port, the threaded end socket is a T-shaped cylinder, an outer thread is arranged on the surface of the threaded end socket, and the outer thread and the inner thread are connected in a matched mode. Preferably, the inner wall of the top end of the oil cylinder cover body is provided with an embedded groove II, the embedded groove II is an annular groove, the oil absorbing cotton ring is fixed in the embedded groove II, the inner ring diameter of the oil absorbing cotton ring is smaller than the inner ring diameter of the oil cylinder cover body, the cotton core penetrates through the through hole, the through hole is formed in the side wall of the embedded groove II, and the through hole is communicated with the embedded groove II and the storage groove. An oil cylinder includes a cylinder head assembly. Compared with the prior art, the utility model has the beneficial effects that: According to the oil cylinder cover assembly and the oil cylinder, through the design of the embedded gr