An oil leakage prevention device for electro-hydraulic servo valve

Abstract

The invention belongs to the technical field of oil leakage prevention, in particular to an oil leakage prevention device for an electro-hydraulic servo valve. The existing electro-hydraulic servo valve has no anti-oil leakage design when it is overhauled and replaced. Every time the electro-hydraulic servo valve is disassembled There will be a problem that oil will overflow from the oil port of the oil pipe. The following scheme is proposed, which includes an electro-hydraulic servo valve. The electro-hydraulic servo valve is connected with a connecting pipe. There are multiple sealing rings on the inner wall, and the sealing rings are sealed and connected with the outer side of the connecting pipe. Four welding rods are arranged symmetrically on the outer side of the sealing pipe. The two welding rods on the same horizontal axis are fixedly installed with the same The fixing strip, the invention is easy to operate, can prevent oil leakage in the maintenance of the electro-hydraulic servo valve, save resources, avoid polluting the environment, and can quickly disassemble and install the electro-hydraulic servo valve, and at the same time increases the connection between the connecting pipe and the sealing pipe time stability.

Description

technical field [0001] The invention relates to the technical field of oil leakage prevention, in particular to an oil leakage prevention device for an electro-hydraulic servo valve. Background technique [0002] The electro-hydraulic servo valve is a key component in electro-hydraulic servo control. It is a hydraulic control valve that outputs modulated flow and pressure after receiving an analog electrical signal. The electro-hydraulic servo valve has fast dynamic response, high control precision, and Long service life and other advantages have been widely used in electro-hydraulic servo control systems in the fields of aviation, aerospace, ships, metallurgy, and chemical industry. Generally, the electro-hydraulic servo valve is directly installed on the oil pipe. [0003] Existing electro-hydraulic servo valves do not have an oil-leakage-proof design when they are overhauled and replaced. Every time the electro-hydraulic servo valve is disassembled, oil will overflow from...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing electro-hydraulic servo valve has no oil leakage prevention design when it is repaired and replaced in the prior art. Every time the electro-hydraulic servo valve is disassembled, oil will flow from the oil port of the oil pipe. Overflow, not only pollutes the environment and wastes resources, but proposes a kind of oil leakage prevention device for electro-hydraulic servo valve

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