A test system and method for calculating the friction coefficient of inclined roller friction disc

Abstract

A test system and method for obtaining the friction coefficient of an inclined roller friction disc, belonging to the field of test coefficient parameter measurement systems and methods, is composed of a servo motor, a torque sensor, a test chamber, a moving fixture, a static fixture, a pressure sensor, Composed of pneumatic device and inclined roller test piece, the servo motor provides the speed signal to drive the torque sensor, the torque sensor transmits the speed parameter to the dynamic fixture, the pneumatic device provides the pressure signal to the pressure sensor, both the dynamic fixture and the static fixture are installed In the test chamber, the inclined roller test piece is sandwiched between the moving fixture and the static fixture, and the complete friction is realized through the process of assembling and disassembling the test piece, the process of obtaining the friction coefficient test and the verification and calibration process of the friction coefficient The beneficial effect of obtaining the coefficient is that the coefficient of friction is measured and calculated by means of a test, and test pieces of different specifications are replaced, which in turn can verify and verify the reliability of the coefficient of friction under different working conditions.

Description

technical field [0001] The invention relates to the field of a test coefficient parameter measurement system and method, and more specifically relates to a test system and method for obtaining the friction coefficient of an inclined roller type friction disc. Background technique [0002] The horizontal stabilizer is a key auxiliary rudder surface that cooperates with the elevator to control the pitch of the aircraft. The electric horizontal stabilizer actuator is the key actuating device for controlling the horizontal stabilizer. Its composition is relatively complex, with high reliability requirements and many redundancy requirements. That makes its design particularly critical. The key component of the electric horizontal stabilizer actuator is the anti-reverse mechanism, which is used for the forward load, reverse load and locking control of the aircraft during flight. The traditional anti-reverse mechanism is a carbon disc friction disc structure. There are relatively ...

AI Technical Summary

Problems solved by technology

The key component of the electric horizontal stabilizer actuator is the anti-reverse mechanism, which is used for the forward load, reverse load and locking control of the aircraft during flight. The traditional anti-reverse mechanism is a carbon disc friction disc structure. There are relatively many studies on the carbon disc structure, but its serious wear and long-term replacement is a major disadvantage. To solve this problem, an inclined roller friction disc has emerged.

[0003] However, there are relatively few researches and achievements on inclined roller friction discs. In its application scenarios, the friction coefficient is a key research factor, and the data of friction coefficient is directly related to the braking performance of inclined roller friction discs.

Images