Test device for stiffness of flexible spring

A flexible spring and testing device technology, applied in the field of flexible springs, achieves the effects of easy operation, fewer parts and convenient installation

Active Publication Date: 2011-09-07
江苏热声机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the dial indicator support in the present invention also solves the problem of the dial indicator support swinging on the horizontal plane when the radial offset of the spring is measured with the dial indicator, effectively reducing errors and improving the accuracy of measurement

Method used

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  • Test device for stiffness of flexible spring
  • Test device for stiffness of flexible spring
  • Test device for stiffness of flexible spring

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention should not be limited.

[0030] Please see first Figure 1-2 , figure 1 It is the structural representation of the testing device of flexible spring stiffness of the present invention, figure 2 yes figure 1 Exploded view of the middle spring support platform. As shown in the figure, a test device for the stiffness of a flexible spring includes a spring support platform and a dial gauge support platform;

[0031] Described spring support platform is by the two ends of four equal-length support rods 4 and the four jiaos of square support plates 1 that place in parallel by connecting and fixing the cube frame structure that forms, and described two square support plates 1 There are mutually symmetrical circular holes in the center of the circular hole, and several mounting holes 2 are evenly dis...

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Abstract

The invention relates to a test device for stiffness of a flexible spring, and the device comprises a spring trestle table and a dial indicator trestle table, wherein the spring trestle table has a cubic frame structure formed by a bracket rod and a square bracket plate; mutually symmetric round holes are arranged on the center of the bracket plate; a plurality of spring base mounting holes are uniformly distributed along the peripheries of the round holes; a plurality of spring base mounting holes are also uniformly distributed on the peripheries of two circular spring bases; a plurality of spring mounting holes are uniformly distributed along the periphery of a centre hole; the circular spring bases are fixed on the square bracket plate through the corresponding spring base mounting holes on the square bracket plate and the spring base mounting holes on the spring bases; the spring trestle table further comprises a spring motion shaft; the dial indicator trestle table comprises a support base having a slot and a connecting rod sliding block; a dial indicator is arranged on the other end of the connecting rod sliding block; and the contact of the dial indicator is tightly adheredto the upper surface of the flexible spring motion shaft. The test device can be used for measuring the radial stiffness and axial stiffness of the flexible springs in various sizes, and can be conveniently installed and simply operated.

Description

technical field [0001] The invention relates to a flexible spring, in particular to a testing device for the radial stiffness and axial stiffness of the flexible spring used in an oil-free linear compressor and a free-piston Stirling machine. Background technique [0002] The flexible spring is the key to ensure the sealing gap between the piston and the cylinder in the oil-free linear compressor and the free-piston Stirling machine, and to provide sufficient stiffness and a certain stroke for the reciprocating vibration of the piston, so as to reduce wear and improve the reliability of the whole machine part. Based on the above requirements, it is necessary to test the axial stiffness and radial stiffness of the flexible spring. [0003] a. The radial stiffness refers to the ratio of the radial force to the radial displacement of the flexible spring. In refrigerators and compressors, the spring is directly connected to the piston shaft, and the spring supports the piston ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/14G01N3/08
Inventor 陈曦袁重雨张华吴亦农
Owner 江苏热声机电科技有限公司
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