A hydraulic cylinder piston sealing device with anti-deformation and oil leakage storage capacity

Abstract

The invention provides a hydraulic cylinder piston sealing device with anti-deformation and oil leakage capacity, which mainly includes a cylinder barrel, a piston, a piston rod, a U-shaped sealing ring, a trapezoidal sealing ring, a U-shaped steel ring and a slag removal ring, and the piston rod The head is provided with a shaft shoulder and an external thread, and an elastic ring, a piston, an elastic pad and a lock nut are sequentially installed on the piston rod. Its characteristic is that the U-shaped steel ring prevents the deformation of the U-shaped sealing ring, and the U-shaped sealing ring can store oil leakage. The present invention realizes the temporary storage of oil leakage through the U-shaped sealing ring of the U-shaped cross-section; through the trapezoidal sealing ring and the U-shaped steel ring, the deformation of the U-shaped sealing ring is reduced and the deformation failure is prevented; the passing section is a triangular arc and contains large, The slag removal ring with small grooves prevents oil residue from entering the piston and temporarily stores oil leakage and oil residue.

Description

technical field [0001] The invention relates to a hydraulic cylinder piston sealing device with anti-deformation and oil leakage storage capacity, in particular to a U-shaped sealing ring with a U-shaped cross-section to realize the temporary storage of oil leakage, which is realized by a trapezoidal sealing ring and a U-shaped steel ring respectively. Reduce the deformation of the U-shaped sealing ring and prevent its failure. Through the slag removal ring with a triangular arc cross section and large and small grooves, it can prevent oil residue from entering the piston and temporarily store oil leakage and oil residue. It belongs to the hydraulic cylinder seal. technology research and development field. Background technique [0002] The hydraulic cylinder uses the linear reciprocating motion of the piston to convert hydraulic energy into mechanical energy, but the following problems are prone to occur during use. First, the seal fails, that is, the hydraulic oil leaks fro...

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Problems solved by technology

[0004] Aiming at the problems of seal failure and oil residue wear in the existing hydraulic cylinders, the present invention provides a hydraulic cylinder piston sealing device that can effectively solve the above problems and has the ability to prevent deformation and store oil leakage

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