A multi-line arm leaf spring for refrigeration compressors

A refrigeration compressor and line type technology, which is applied to springs, springs/shock absorbers, leaf springs, etc., can solve the problems of complex line design and expression at the closed end, difficult machining, and large concentrated stress, etc., to achieve small Effects of equivalent mass, low equivalent mass, and small local stress

Active Publication Date: 2021-10-08
LIAONING TECHNICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent No. CN101892971A discloses a linear compressor using two different types of linear leaf spring support systems, and the patent No. JP2003247580 (A) discloses a scroll arm leaf spring, both of which have excessive equivalent mass. Large, the problem of low life in the case of meeting the rigidity requirements
Patent No. CN108167359A discloses an Archimedes helical leaf spring, the end of the vortex groove is closed by two circular arcs with different bending directions and tangent to the outer shape of the vortex groove respectively. And the inner molded line, the design and expression of the closed end molded line are complicated, the machining is difficult, and the concentrated stress is too large

Method used

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  • A multi-line arm leaf spring for refrigeration compressors
  • A multi-line arm leaf spring for refrigeration compressors
  • A multi-line arm leaf spring for refrigeration compressors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] like figure 1 and Figure 5 As shown, the leaf spring in this example includes two axially symmetrical spring arms 3 with the same structure, an inner fixing disk 4 and an inner fixing hole 5 , an outer fixing device 1 and a mounting hole 6 . The included angle of two spring arms 3 is 180 °, and the arm width of the linear arm part of spring arm 3 is 6mm, and the diameter of inner fixed disk 4 is 12mm, and the diameter of inner fixed hole 5 is 6mm, and the internal diameter of outer fixation device 1 is 120mm, its outer diameter is 140mm, four installation holes 6 are evenly distributed on the external fixing device 1, and the diameter of the installation holes 6 is 4mm. The connection between the head end of the spring arm 3 and the inner fixed disc 4 is smoothly transitioned, and the diameter of the transition arc is 4 mm. The end of the spring arm 3 is connected to the external fixation device 1, and the inner profile of the spring arm 3 includes two tangent transi...

Embodiment 2

[0057] like Figure 7 As shown, the leaf spring in this example includes four axially symmetrical spring arms 3 with the same structure, an inner fixing disc 4 and an inner fixing hole 5 , an outer fixing device 1 and a mounting hole 6 . The angle between the four spring arms 3 is 90°, the arm width of the straight arm part of the spring arms 3 is 6mm, the diameter of the inner fixed disk 4 is 12mm, the diameter of the inner fixed hole 5 is 6mm, and the inner diameter of the outer fixation device 1 It is 120mm, and its outer diameter is 140mm, and six mounting holes 6 are uniformly distributed on the external fixing device 11, and the diameter of the mounting holes 6 is 4mm. The connection between the head end of the spring arm 3 and the inner fixed disc 4 is smoothly transitioned, and the diameter of the transition arc is 4 mm. The end of the spring arm 3 is connected to the external fixation device 1, and the inner profile of the spring arm 3 includes two tangent transition...

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Abstract

The invention provides a multi-line arm leaf spring for a refrigeration compressor, which comprises an external fixing device for installation and positioning, an internal fixing disc, and at least two The spring arm with the same structure; the inner fixing disc is provided with inner fixing holes, and several mounting holes are evenly distributed on the outer fixing device; the inner and outer molding lines of the spring arm are composed of two straight lines, Archimedes It consists of a spiral line and six transitional arcs. The present invention constructs a new type combined inner and outer profile of the spring arm, the head end of the spring arm is smoothly transitioned to the inner fixed disk, and the end of the spring arm is connected to the outer fixation device through a multi-section arc transition, and the spring arm is used to more effectively disperse the stress. Stress concentration is avoided, the life of the spring is improved, and the leaf spring of the present invention has a smaller equivalent mass, a larger radial stiffness and a suitable axial stiffness, which is suitable for linear compressors and improves the overall reliability of the compressor sex.

Description

technical field [0001] The invention relates to the technical field of springs, in particular to a leaf spring, in particular to a multi-line arm leaf spring for a refrigeration compressor. Background technique [0002] The linear compressor is a kind of reciprocating piston compressor, and the support technology of the leaf spring is the key technology of the linear compressor. The linear motor drives the piston to make a reciprocating linear motion in the cylinder. The leaf spring is connected to the piston through the piston shaft. As the elastic part of the array system, it supports the piston and the electronic mover assembly. The leaf spring is required to have sufficient axial stiffness and stroke to ensure that the piston axial reciprocating motion. Compared with the traditional cylindrical spring, the leaf spring has a larger radial stiffness, which can ensure that the piston will not deviate from the equilibrium position due to vibration to produce radial displace...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F1/18
CPCF16F1/185
Inventor 陈洪月张站立王鑫杨辛未刘辉吴建令陈洪岩
Owner LIAONING TECHNICAL UNIVERSITY
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