Multi-working-condition comprehensive simulation test system for reciprocating seal of aviation actuator

Abstract

The invention discloses a multi-working-condition comprehensive simulation test system for reciprocating seal of an aviation actuator. The multi-working-condition comprehensive simulation test system comprises a test actuator, a reciprocating driving loading system and a hydraulic system, wherein the reciprocating driving loading system is connected with a piston rod of the test actuator; the hydraulic system is connected to an oil inlet / outlet of a cylinder body; the test actuator comprises an end cover, the piston rod and the cylinder body; the reciprocating driving loading system comprises an electric cylinder, a transmission shaft, a transmission vibration isolating device, a force sensor and an LVDT sensor, and the transmission shaft is connected with the force sensor through the transmission vibration isolating device; and the hydraulic system comprises a pump source module, a pressurization module, a pressure maintaining module and a pipeline heater. By using the multi-working-condition comprehensive simulation test system, multi-working-condition comprehensive conditions such as high pressure, wide temperature range, variable speed and airborne vibration of the aviation actuator can be effectively simulated, and the friction force character of multi-type shaft seal of single piston rod and the leakage rate obtained after repeated reciprocation can be accurately measured under various working conditions; and the multi-working-condition comprehensive simulation test system has the characteristics of convenience in use, operation stability, test accuracy, long service life and the like.

Description

Technical field [0001] The invention belongs to the technical field of aviation hydraulic reciprocating seals, and specifically relates to a multi-working condition comprehensive simulation test system for reciprocating seals of aviation actuators, which is used to test the performance of reciprocating seals of aviation actuators. Background technique [0002] In recent years, with the rise of major aviation projects in my country, related supporting research and test work has begun to start one after another. Aviation actuators are the main actuators in large aviation, and their reciprocating sealing performance is directly related to aviation reliability. In order to better study the reciprocating sealing performance of aviation actuators and establish related test standards, it is urgent to develop a test system that can simulate the real working conditions of aviation actuators. [0003] The working conditions of aviation actuators mainly include: high pressure, wide temperatur...

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Problems solved by technology

[0003] The working conditions of aviation actuators mainly include: high pressure, wide temperature (-55 ~ 135 ℃), variable speed and frequent airborne vibration. Waves and other forms, the existing simulation test system for reciprocating sealing conditions of aviation actuators did not comprehensively simulate various working conditions of aviation actuators, and only studied a part of it one-sidedly, especially the simulation of airborne vibration. There are real working conditions, and no one in China has set foot in it yet

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