Ball screw pair loading test device and test method

Abstract

The invention discloses a ball screw pair loading test device and a test method, solves the problem of low accuracy of parameters obtained by a test in the prior art, and has the beneficial effect of effectively obtaining the parameters in the loading process. The specific scheme is as follows: the ball screw pair loading test device comprises a ball screw, the ball screw is provided with at least one working table plate through a nut pair, a test nut can be installed on the ball screw, at least one side of the end of the test nut is connected with a supporting piece, an expansion device is arranged between the working table plate and the supporting piece, a pressure sensor is arranged between the expansion piece and the working table plate on one side, the arrangement direction of the expansion piece is parallel to the arrangement direction of the ball screw, and a load is applied to the end part of the test nut through the expansion piece.

Description

technical field [0001] The invention relates to the field of ball screws, in particular to a ball screw pair loading test device and a test method. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] With the rapid development of aerospace and other defense industries and deep-sea operation equipment, such as the opening and closing of spacecraft hatches, the retraction and retraction of aircraft landing gear, the deployment of solar panels, the control of injection molding machinery mold clamping, and the swing of robotic arms for deep-sea operations As well as many important applications such as the switch of nuclear power plant valves, ball screws are used as transmission elements. The electromechanical servo transmission mechanism composed of the ball screw pair requires a small structure size, and under the working conditions of impact l...

AI Technical Summary

Problems solved by technology

[0004] The load characteristics of the traditional ball screw are mainly obtained by the cylinder loading, motor torque loading, and magnetic particle actuator loading tests. These loading methods have been widely used in the design and development of the ball screw pair simulation test bench. Screw design theory combined with empirical design is still the main method for ball screw design and selection under this extreme working condition at present, and t

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