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

A dual-mass flywheel and test method technology, applied in the field of arc spring torsional fatigue test device, can solve the problem of not being able to meet the detection requirements of arc spring, and achieve the effects of safe use, convenient operation and wide application range

Active Publication Date: 2017-08-11
HEFEI UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0028] see figure 1 , Figure 2a and Figure 2b , in the present embodiment, set up and constitute the constant torque / fixed angle arc spring torsional fatigue test device in the following form: the arc spring detection mold 7 is set, and the arc slideway 20 that is opposite to the two openings constitutes a loop. The two ends of the arc-shaped slideway 20 are respectively provided with stoppers 19, the height of the top surface of the stoppers 19 and the arc-shaped slideway 20 is the same, and the arc-shaped spring 18 placed in the arc-shaped slideway 20 is in a non-compressed state Clamped between the stoppers 19 at both ends, and half of the height of the arc spring 18 is submerged in the arc slideway 20, and the other half is protruding from the top surface of the arc slideway; The arc spring detection mold 7 is fixed on the test bench by countersunk head screws 8; a rotatable torsion disk 6 is arranged at the center of the arc spring detection mold 7, and the torsion di...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
Inventor 严正峰程伟平刘猛曹明李维军
Owner HEFEI UNIV OF TECH
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