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Torsion fatigue test device and method of arc-shaped springs

A technology of torsional fatigue and test equipment, which is applied in the direction of measuring equipment, testing of mechanical components, testing of machine/structural components, etc., can solve problems such as not being able to meet the detection requirements of arc springs, and achieve safe use, wide application range, and easy operation convenient effect

Active Publication Date: 2015-01-07
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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  • Torsion fatigue test device and method of arc-shaped springs
  • Torsion fatigue test device and method of arc-shaped springs
  • Torsion fatigue test device and method of arc-shaped springs

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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 torsion fatigue test device and method of fixed-torque and fixed-angle arc-shaped springs. The torsion fatigue test device and method of the arc-shaped springs are characterized in that an arc-shaped spring detection mould is arranged, two arc-shaped slideways with opposite openings form an annular way, stop blocks are arranged at the two ends of each arc-shaped slideway, each arc-shaped spring arranged in the corresponding arc-shaped slideway is clamped between the stop blocks at the two ends in a non-compressed state, a rotary torsion disc is arranged in the center of the arc-shaped spring detection mould, a pair of torsion arms extend from the periphery of the torsion disc in the diameter direction of the torsion disc, and the lateral portions of the torsion arms are attached to the end surfaces, protruding out of the arc-shaped slideways, of the arc-shaped springs; the rotary torsion disc applies pressure on the arc-shaped springs through the ends, located at the arc-shaped springs, of the torsion arms, and the arc-shaped springs are made compressed. The torsion fatigue test device and method of the arc-shaped springs are used for realizing a fixed-torque / fixed-angle fatigue test of the arc-shaped springs.

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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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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