Reciprocating seal experiment table for measuring friction feature of single seal ring

Abstract

The invention discloses a reciprocating seal experiment table for measuring a friction feature of a single seal ring. The experiment table is composed of an experiment cylinder, a high-pressure simulation system, a high-speed drive oil cylinder and a hydraulic system of the experiment table, wherein the high-pressure simulation system and the high-speed drive oil cylinder are connected with the experiment cylinder. A cylinder body of the experiment oil cylinder is installed on a work table through a linear guide rail, the high-speed drive oil cylinder drives the experiment cylinder to reciprocate through a connecting flange, a piston rod of the experiment cylinder is fixed and is divided into two halves, the two halves are connected through a pull pressure sensor and are fixed to the work table. A bushing, used for installation of the seal ring, of the experiment cylinder can be replaced, and therefore seal rings with different pre-compression amounts and different section shapes can be measured conveniently. A high-pressure oil supply system provides a high-pressure working simulation environment inside the experiment cylinder, and the experiment table can adjust the reciprocating speed, strokes and in-cylinder pressure of the drive oil cylinder. The experiment table can measurement the friction feature of the inner stroke and the outer stroke of the single seal ring, the leakage amount and the medium temperature after reciprocating for several times .

Description

technical field [0001] The invention belongs to the technical field of rubber and plastic reciprocating seals, and in particular relates to a reciprocating seal test bench for measuring the friction characteristics of a single sealing ring. Background technique [0002] Aviation actuators are key components of large aircraft, mainly used in aircraft wings and landing gear, and play a very important role in the process of aircraft takeoff, landing and attitude adjustment. At present, the research and development of large passenger aircraft has been listed as a major national project, but its actuation system is monopolized by foreign companies. In the actuation system, the aero actuator plays a very important role as the executive component. At present, the pressure system of large passenger aircraft is spanning from 21Mpa to 35Mpa, and is developing towards a higher direction. The actuator moves very quickly during the execution of the action. Therefore, whether the opera...

AI Technical Summary

Problems solved by technology

[0004] The existing reciprocating seal test benches do not strictly distinguish the friction force of the inner and outer strokes of a single seal ring when measuring the friction force of the seal ring

In addition, the existing reciprocating sealing test bench cannot realize high-pressure and high-speed working conditions, and it is difficult to simulate the application conditions of aviation actuators

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