CN216867145U

CN216867145U - Joint for sealing oil cylinder

Info

Publication number: CN216867145U
Application number: CN202123289298.7U
Authority: CN
Inventors: 郑荣通
Original assignee: Nanjing Astor Hydraulic Parts Co ltd
Current assignee: Nanjing Astor Hydraulic Parts Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-07-01
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a joint for sealing an oil cylinder, which comprises a cylinder barrel, wherein the opening end of the cylinder barrel is provided with a joint body, the joint body is connected with the cylinder barrel in a clamping manner, the number of the joint bodies is two, an oil storage tank is arranged in the joint body, an oil scraping piece is arranged at the bottom of the joint body, an integrally formed structure is arranged between the oil scraping piece and the joint body, the edge of the oil storage tank is fixedly connected with a first connecting ring, one end of the joint body is provided with a blocking piece, and the blocking piece is fixedly connected with the cylinder barrel through screws. Some lubricating oil can be stored through the oil storage tank that sets up, like this when the piston rod is in concertina movement, can lubricate the surface of piston rod, the frizing piece that sets up in addition can avoid the piston rod to take the inside hydraulic oil of cylinder out on the one hand, and on the other hand also can avoid the piston rod to bring external dust into the inside of cylinder in the shrink.

Description

Joint for sealing oil cylinder

Technical Field

The utility model relates to the technical field of oil cylinders, in particular to a joint for sealing an oil cylinder.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating movement, it can remove speed-reducing device, and has no transmission gap, and its movement is stable, and the hydraulic oil cylinder is used as a power device, so that it can be extensively used in hydraulic systems of various machines.

However, the sealing joint on the existing hydraulic cylinder only plays a sealing role, and the inside of the hydraulic cylinder has no oil storage function, so that the friction force between the telescopic rod and the telescopic rod can be increased, the hydraulic cylinder is used for a long time, the gap can be increased, and the oil leakage can be caused.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a joint for sealing an oil cylinder, aiming at solving the problems that the existing joint for sealing the hydraulic cylinder only plays a sealing role and has no oil storage function in the joint, so that the friction force between a telescopic rod and the telescopic rod is increased, and the gap is increased after the telescopic rod is used for a long time, so that the oil leakage is caused.

The technical scheme is as follows: the joint for sealing the oil cylinder comprises a cylinder barrel, a joint body, a gear piece and a piston rod, wherein the joint body is arranged at the opening end of the cylinder barrel and is connected with the cylinder barrel in a clamping manner; the oil storage tank has been seted up to the inside of connecting the body, the first connecting ring of edge fixedly connected with of this oil storage tank, the bottom that connects the body is provided with the frizing.

Furthermore, the bottom of the gear part of the joint is provided with a second connecting ring, and second connecting holes are arranged on the second connecting ring in a penetrating manner and are distributed at equal intervals around the axis of the second connecting ring.

Furthermore, the side surface of the first connecting ring of the joint is provided with first connecting holes which are distributed around the axis of the first connecting ring at equal intervals.

Furthermore, one end of the cylinder barrel of the joint is provided with thread grooves which surround the axis of the cylinder barrel and are distributed at equal intervals.

Furthermore, the side surface of the cylinder barrel of the joint is symmetrically provided with a fixed seat.

Furthermore, the side surface of the cylinder barrel of the joint is symmetrically provided with oil way joints.

Furthermore, one end of the cylinder barrel of the joint is fixedly connected with a first connecting piece, and a first limiting hole is formed in the side face of the first connecting piece (13) in a penetrating mode.

Furthermore, one end of a piston rod of the joint is fixedly connected with a piston, the other end of the piston rod is fixedly connected with a second connecting piece, and a second limiting hole is formed in the side face of the second connecting piece in a penetrating mode.

Has the advantages that: compared with the prior art, the utility model has the advantages that: this connect can store some lubricating oil through the oil storage tank that sets up, so when the piston rod in concertina movement, can lubricate the surface of piston rod, the frizing piece that sets up in addition can avoid the piston rod to take out the inside hydraulic oil of cylinder on the one hand, and on the other hand also can avoid the piston rod to bring external dust into the inside of cylinder in the time of the shrink.

Drawings

FIG. 1 is a front view of the joint of the present invention;

FIG. 2 is a schematic view of the construction of the cylinder of the joint of the present invention;

FIG. 3 is a schematic structural view of the fitting body of the fitting of the present invention;

FIG. 4 is a schematic view of the structure of the stop member of the coupling of the present invention;

fig. 5 is a schematic view of the construction of the piston rod of the joint of the present invention.

In the figure: 1. a cylinder barrel; 11. a fixed seat; 12. an oil line joint; 13. a first connecting member; 131. a first limit hole; 14. a thread groove; 2. a connector body; 21. an oil scraping member; 22. an oil storage tank; 23. a first connecting ring; 231. a first connection hole; 3. a gear member; 31. a second connecting ring; 311. a second connection hole; 4. a piston rod; 41. a piston; 42. a second connecting member; 421. a second limiting hole.

Detailed Description

The technical solution of the present invention is further described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 5, the joint for sealing the oil cylinder comprises a cylinder barrel 1, a joint body 2 is arranged at the opening end of the cylinder barrel 1, the joint body 2 and the cylinder barrel 1 are connected in a clamping manner, the number of the joint bodies 2 is two, an oil storage tank 22 is arranged inside the joint body 2, an oil scraping piece 21 is arranged at the bottom of the joint body 2, an integrally formed structure is arranged between the oil scraping piece 21 and the joint body 2, a first connecting ring 23 is fixedly connected to the edge of the oil storage tank 22, a blocking piece 3 is arranged at one end of the joint body 2, the blocking piece 3 is fixedly connected with the cylinder barrel 1 through screws, a piston rod 4 is arranged inside the cylinder barrel 1, and the piston rod 4 is movably connected with the cylinder barrel 1 in an inserting manner.

Wherein, the bottom that keeps off position spare 3 is provided with second connecting ring 31, second connecting ring 31 and keep off fixed connection between the position spare 3, run through on the second connecting ring 31 and seted up second connecting hole 311, second connecting hole 311 centers on the axle center equidistant distribution of second connecting ring 31, and it fixes to be convenient for use the screw through setting up like this with keeping off position spare 3.

First connecting hole 231 has been seted up in the side of first adapter ring 23 run through, and first connecting hole 231 centers on the equidistant distribution in axle center of first adapter ring 23, and the use of being convenient for screw is fixed joint body 2.

Threaded groove 14 is seted up to the one end of cylinder 1, and threaded groove 14 centers on the equidistant distribution of axle center of cylinder 1, is convenient for use the screw to fix joint body 2 and fender piece 3.

The side symmetry of cylinder 1 is provided with fixing base 11, fixed connection between fixing base 11 and the cylinder 1, and the side symmetry of cylinder 1 is provided with oil circuit joint 12, is convenient for install cylinder 1.

One end fixedly connected with first connecting piece 13 of cylinder 1, the side of first connecting piece 13 runs through and has seted up first spacing hole 131, is convenient for inject the position of first connecting piece 13.

One end fixedly connected with piston 41 of piston rod 4, and the other end fixedly connected with second connecting piece 42 of piston rod 4, the side of second connecting piece 42 runs through and has seted up spacing hole 421 of second, can let piston rod 4's installation more convenient.

The working principle is as follows: firstly, the piston rod 4 needs to be inserted into the cylinder barrel 1, then the joint body 2 is sleeved on the piston rod 4, and the joint body 2 is clamped at the opening end of the cylinder barrel 1, so that lubricating oil is added into the oil storage tank 22, and then the other joint body 2 and the gear piece 3 are respectively sleeved on the piston rod 4 and fixed by using screws.

Claims

1. The utility model provides a joint for cylinder seal which characterized in that: the joint comprises a cylinder barrel (1), a joint body (2) which is arranged at the opening end of the cylinder barrel (1) and is clamped and connected with the cylinder barrel (1), a gear piece (3) which is arranged at one end of the joint body (2) and a piston rod (4) which is arranged in the cylinder barrel (1); connect the inside of body (2) and seted up oil storage tank (22), the first connecting ring (23) of edge fixedly connected with of this oil storage tank (22), the bottom that connects body (2) is provided with frizing (21).

2. The joint for cylinder sealing according to claim 1, characterized in that: the bottom of the gear piece (3) is provided with a second connecting ring (31), and second connecting holes (311) are formed in the second connecting ring (31) in a penetrating mode and distributed around the axis of the second connecting ring at equal intervals.

3. The joint for cylinder sealing according to claim 2, characterized in that: the side of the first connecting ring (23) is provided with first connecting holes (231) which are distributed around the axis of the first connecting ring at equal intervals in a penetrating way.

4. The joint for cylinder sealing according to claim 1, characterized in that: one end of the cylinder barrel (1) is provided with thread grooves (14) which surround the axis of the cylinder barrel and are distributed at equal intervals.

5. The joint for cylinder sealing according to claim 1, characterized in that: the side of cylinder (1) is symmetry provided with fixing base (11).

6. The joint for cylinder sealing according to claim 1, characterized in that: and oil way joints (12) are symmetrically arranged on the side surface of the cylinder barrel (1).

7. The joint for cylinder sealing according to claim 1, characterized in that: one end of the cylinder barrel (1) is fixedly connected with a first connecting piece (13), and a first limiting hole (131) is formed in the side face of the first connecting piece (13) in a penetrating mode.

8. The joint for cylinder sealing according to claim 1, characterized in that: one end fixedly connected with piston (41) of piston rod (4), and the other end fixedly connected with second connecting piece (42) of piston rod (4), the side of this second connecting piece (42) is run through and has been seted up second spacing hole (421).