Ultra-high-pressure oil cylinder sealing structure

Abstract

The invention discloses an ultra-high-pressure oil cylinder sealing structure. The ultra-high-pressure oil cylinder sealing structure comprises an oil cylinder, an oil pressure piston, a telescopic link and a pressure chamber. The oil pressure piston is arranged inside the oil cylinder. The telescopic link is connected with one side of the oil pressure piston. The pressure chamber is connected with one side of the oil cylinder. An outer cylinder body is arranged on the outer side of the oil cylinder. A sealing liner is arranged on the inner wall of the oil cylinder. A piston sealing ring is arranged on the outer side of the oil pressure piston. The piston sealing ring and the sealing liner make contact with each other. A sealing cylinder cover is arranged on the other side of the oil cylinder. A cylinder cover sealing ring is arranged between one side of the sealing cylinder cover and the oil cylinder. The ultra-high-pressure oil cylinder sealing structure is simple in structure and novel in design; an integral oil cylinder sealing structure can be formed by the arranged cylinder cover sealing ring, the piston sealing ring and a connecting shaft sealing ring, the integral oil cylinder sealing structure can resist the pressure in the ultra-high-pressure working state, the sealing effect is assured, and furthermore, it is guaranteed that no oil leaks out of the oil cylinder so that the ultra-high-pressure oil cylinder can have a very good working effect and the very good promotional value.

Description

technical field [0001] The invention relates to a sealing structure, in particular to a sealing structure of an ultra-high pressure oil cylinder. Background technique [0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has simple structure and reliable operation. When it is used to realize reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the motion is stable, so it is widely used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is proportional to the effective area of ​​the piston and the pressure difference on both sides; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device and an exhaust device. Buffers and exhausts are application specific and others are essential. [0003] The existing ul...

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Problems solved by technology

[0003] The existing ultra-high pressure oil cylinders have made great contributions in the industrial field and effectively ensured the normal operation of large machinery. However, due to the high working intensity of the ultra-high pressure oil cylinders, the pressure they bear is far higher than that of small oil cylinders, so the ultra-high pressure oil cylinders The sealing plays an important role in the use of the oil cylinder. If the sealing structure cannot withstand high pressure, it may cause oil leakage in the hydraulic cylinder, resulting in insufficient pressure. In severe cases, irreparable consequences will occur. Therefore, we propose a A super high pressure oil cylinder sealing structure

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