A torsional fatigue test method for arc springs in a dual-mass flywheel structure

Abstract

The invention discloses a fixed-torque fixed-angle arc spring torsion fatigue test device and test method, which is characterized in that an arc spring detection mold is set, and a loop is formed by two arc-shaped slideways with opposite openings. The two ends of the arc-shaped slideway are respectively provided with stoppers, and the arc-shaped spring placed in the arc-shaped slideway is clamped between the stoppers at both ends in an uncompressed state, and a rotatable spring is arranged at the center of the arc-shaped spring detection mold. Twist disk, the torsion disk has a pair of torsion arms extending on the outer circumference of the torsion disk along the diameter direction, and the side of the torsion arm is attached to the end surface of the arc spring protruding from the arc slideway; the rotating torsion disk passes through the torsion arm Pressing on the ends of the arc springs exerts pressure toward the arc springs and can cause the arc springs to be compressed. The invention is used for realizing the torsional fatigue test of a fixed torque / fixed angle arc spring.

Description

technical field [0001] The design of the present invention relates to an arc spring torsional fatigue test device and test method, more specifically an arc spring torsional fatigue test device and test method with fixed torque and fixed angle. Background technique [0002] The application of springs is very common, and all walks of life use springs with different strengths, stiffnesses and service life according to different purposes. [0003] The universal application of springs makes the structure of springs diversified. Arc springs are a special spring that are currently mainly used in dual-mass flywheel structures to reduce vibration. The spring testing machines in the prior art are all set up for testing linear helical springs. The direction of motion during the test is linear motion or rotation around the center line of the spring. This method cannot meet the testing requirements of arc springs. Contents of the invention [0004] In order to avoid the problems exist...

AI Technical Summary

Problems solved by technology

The spring testing machines in the prior art are all set up to detect linear helical springs, and the direction of motion during the test is linear motion or rotation around the center line of the spring, which cannot be adapted to the detection requirements of arc springs

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