A jet tube servo valve capable of adjusting the axial position of the nozzle and its debugging method

Abstract

The invention discloses a jet pipe servo valve capable of adjusting axis position of a nozzle. The jet pipe servo valve comprises a valve body, a jet nozzle which is arranged on the upper part of the valve body is controlled through a torque motor, adjustment end covers which are arranged on two ends of the valve body, a pressure detection device, a valve bush arranged in the valve body, a valve core arranged in the valve bush and a receiving base which is embedded in the valve core and is used for receiving a flow beam of nozzle jet flow, wherein two jet flow receiving holes are formed in the jet flow receiving base; the two jet flow receiving holes separately communicate with cavities at two ends of the valve core in the valve bush through receiving slot holes formed in the wall of the valve bush; the pressure detection device comprises two pressure detection holes formed in the jet flow receiving base and first pressure sensors arranged on the end covers; and the two pressure detection holes are separately connected with the pressure sensors through detection slot holes formed in the wall of the valve bush. Compared with the prior art, the jet pipe servo valve has the advantages that the axis position of the nozzle can be adjusted; the nozzle is arranged with the axis being centered front and back, so that a leakage rate in the jet pipe servo valve is lowered; and the like.

Description

Technical field [0001] The invention relates to the technical field of mechanical parts and transmission devices and fluid control of mechanical engineering, in particular to a jet tube servo valve capable of adjusting the position of the nozzle axis and a debugging method. Background technique [0002] The jet tube servo valve appeared in the 1950s. After decades of development, the jet tube servo valve has been widely used in the hydraulics of civil and military aerospace equipment because of its fast response, strong anti-pollution ability, and high reliability. In the system, due to its structure and the processing and assembly restrictions of various parts and components, the internal leakage is relatively large. [0003] Foreign jet tube servo valve manufacturers mainly include MOOG, MTS, HONEYWELL, etc. During the Second World War, the German Askania company first invented the jet tube servo valve. [0004] In terms of structure, after the emergence of the single-stage jet t...

AI Technical Summary

Problems solved by technology

[0007] At present, the jet tube servo valve lacks strict alignment detection awareness during installation, and in fact, installation errors will greatly increase the leakage rate of the jet tube servo valve. This patent proposes a detection method to ensure that the jet tube servo valve The axis of the nozzle is located in the plane of the axis of the two jet receiving holes, so as to improve the flow utilization rate of the jet tube servo valve and reduce internal leakage

Images