CN213598301U

CN213598301U - Oil cylinder protection device

Info

Publication number: CN213598301U
Application number: CN202022379351.1U
Authority: CN
Inventors: 欧艳梅; 杨贵; 贾鹏
Original assignee: Anhui Mining Electromechanical Equipment Co ltd
Current assignee: Anhui Mining Electromechanical Equipment Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-07-02
Anticipated expiration: 2030-10-23

Abstract

The utility model belongs to the technical field of the hydro-cylinder, concretely relates to hydro-cylinder protector, including cylinder body and piston rod, the piston rod activity sets up in the cylinder body, and the one end that the piston rod stretched into in the cylinder body is equipped with piston assembly, and the open end of cylinder body is equipped with the guide pin bushing subassembly, is located in the cylinder body outside be equipped with the sheath on the piston rod, the sheath extends to the outside of cylinder body in the stroke range of piston rod the sheath homoenergetic covers the open end of cylinder body. This application utilizes the sheath to effectively protect the piston rod, can prolong hydro-cylinder life, improves the work efficiency of complete machine equipment.

Description

Oil cylinder protection device

Technical Field

The utility model belongs to the technical field of the hydro-cylinder, concretely relates to hydro-cylinder protector.

Background

The oil cylinder, namely the hydraulic cylinder, can convert hydraulic energy into mechanical energy and is a linear reciprocating motion actuating element. The hydraulic control system is widely applied to coal mine machinery, engineering machinery and port transportation machinery, has the characteristics of reasonable mechanism, light and convenient operation, flexibility, good working stability and the like, and has irreplaceable effect in industrial production. The common oil cylinder protection is that a dustproof ring is arranged in a cylinder opening guide sleeve. In the production process, a large amount of sludge, dust, gravel and other smaller impurities can be attached to the piston rod, the friction force of the piston rod is increased, the piston rod reciprocates to damage the sealing ring and enters the cylinder body, scratches occur in the cylinder body, and the working efficiency of the oil cylinder is influenced. The large waste rock can also smash a chromium coating on the surface of the piston rod, so that the sealing of the piston rod fails, and the production and operation of the whole machine are affected.

Disclosure of Invention

In order to overcome the shortcomings of the prior art, the utility model provides an oil cylinder protection device, which utilizes a sheath to effectively protect a piston rod.

The utility model discloses a realize through following technical scheme: the utility model provides an oil cylinder protector, includes cylinder body and piston rod, and the piston rod activity sets up in the cylinder body, and the one end that the piston rod stretched into in the cylinder body is equipped with piston assembly, and the open end of cylinder body is equipped with the guide pin bushing subassembly, is located the cylinder body outside be equipped with the sheath on the piston rod, the sheath extends to the outside of cylinder body in the stroke range of piston rod the sheath homoenergetic covers the open end of cylinder body.

Furthermore, the sheath is connected with the piston rod through an elastic square stop pin.

Furthermore, the sheath is connected with the piston rod through threads.

Furthermore, the sheath is connected with the piston rod through a set screw.

Furthermore, four set screws are uniformly distributed along the circumferential direction of the sheath and connected with the piston rod.

The utility model has the advantages that: the piston rod is effectively protected by the sheath, the service life of the oil cylinder can be prolonged, and the working efficiency of the whole machine equipment is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the optimized structure of the present invention;

in the figure, the device comprises a cylinder body 1, a cylinder body 2, a piston rod 3, a sheath 4-1, an elastic square stop pin 4-2, a set screw 5, a guide sleeve assembly 6 and a piston assembly.

Detailed Description

The invention will be further explained below with reference to the drawings and examples.

As shown in fig. 1, the oil cylinder protection device comprises a cylinder body 1 and a piston rod 2, wherein the piston rod 2 is movably arranged in the cylinder body 1, a piston assembly 6 is arranged at one end of the piston rod 2 extending into the cylinder body 1, a guide sleeve assembly 5 is arranged at the opening end of the cylinder body 1, a sheath 3 is arranged on the piston rod 2 positioned outside the cylinder body 1, and the sheath 3 is connected with the piston rod 2 through an elastic square stop pin 4-1. The sheath 3 extends to the outside of cylinder body 1 the stroke within range of piston rod 2 the sheath 3 homoenergetic covers the open end of cylinder body 1, when reaching the maximum stroke when piston rod 2 promptly, sheath 3 still can shelter from the piston rod 2 of working part (when the working part of piston rod 2 means that piston rod 2 is in the state of retracting, piston rod 2 can stretch into the part of cylinder body 1 inboard), prevents that less impurity such as mud, dust, gravel from depending on piston rod 2, utilizes sheath 3 to effectively protect piston rod 2, can prolong hydro-cylinder life, improves the work efficiency of complete machine equipment.

The connection of the sheath 3 and the piston rod 2 uses an elastic square stop pin 4-1, the connection processing is labor-consuming and labor-consuming, and the assembly and disassembly are completely manual. Preferably, as shown in fig. 2, the sheath 3 is screwed to the piston rod 2. Specifically, the sheath 3 is connected with the piston rod 2 through a set screw 4-2. Four set screws 4-2 are uniformly distributed along the circumferential direction of the sheath 3 and connected with the piston rod 2, and the automatic assembly operation is facilitated through the connection of the set screws 4-2.

Claims

1. The utility model provides an oil cylinder protector, includes cylinder body (1) and piston rod (2), and piston rod (2) activity sets up in cylinder body (1), and the one end that piston rod (2) stretched into in cylinder body (1) is equipped with piston assembly (6), and the open end of cylinder body (1) is equipped with guide pin bushing assembly (5), its characterized in that: the piston rod (2) positioned on the outer side of the cylinder body (1) is provided with a sheath (3), the sheath (3) extends to the outer side of the cylinder body (1), and the sheath (3) can cover the opening end of the cylinder body (1) within the stroke range of the piston rod (2).

2. The cylinder guard of claim 1, wherein: the sheath (3) is connected with the piston rod (2) through an elastic square stop pin.

3. The cylinder guard of claim 1, wherein: the sheath (3) is connected with the piston rod (2) through threads.

4. A cylinder guard according to claim 3, characterised in that: the sheath (3) is connected with the piston rod (2) through a set screw.

5. The cylinder guard according to claim 4, wherein: four set screws are uniformly distributed along the circumferential direction of the sheath (3) and connected with the piston rod (2).