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Linear spring arm, flat spring composed of linear spring arms and compressor with flat spring

A technology of linear springs and leaf springs, applied in the field of reciprocating mechanisms or compressors, can solve problems such as large stress, limited space, and short spring arms, and achieve the effects of high rigidity, high space utilization, and reasonable structure

Active Publication Date: 2015-12-09
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The leaf spring structure commonly used at present has short spring arms and high stress. When three spring arms are arranged on a circular surface, the space is limited, which leads to great limitations in its application.

Method used

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  • Linear spring arm, flat spring composed of linear spring arms and compressor with flat spring
  • Linear spring arm, flat spring composed of linear spring arms and compressor with flat spring
  • Linear spring arm, flat spring composed of linear spring arms and compressor with flat spring

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A straight spring arm such as figure 1 As shown, the linear spring arm 1 is composed of a first linear arm 12, a second linear arm 14 and a transitional arc 13 connecting the two. The two ends of the linear spring arm are provided with a first mounting hole 11 and a second mounting hole 15. The area provided with mounting holes is a fixed area, and an included angle of 10 to 70 degrees is set between the fixed area and its adjacent straight arm (as in this embodiment, the angle of the included angle is 70 degrees), and the fixed area The length is greater than the transverse width of the straight arm, so that the stress on the fixed end can be reduced during installation.

[0041] A linear spring consisting of the aforementioned linear spring arms, such as figure 2 As shown, three linear spring arms 1 are nested with each other in a circular surface to form a ring-shaped three-leaf spring 10; the three linear spring arms are arranged separately, and mounting holes are...

Embodiment 2

[0046] Such as Figure 11 As shown, the spring b51 is two sets of leaf springs, the structure of which is the same as that of embodiment 1. The spring b51 suspends the push piston rod 52, so that the piston b54 is suspended in the cylinder to form a back working chamber 56 and a front working chamber 55. The piston b54 can be It reciprocates under the impetus of the pressure fluctuation between the front working chamber 55 , the back working chamber 56 and the air reservoir 57 . All the other are with embodiment 1.

Embodiment 3

[0048] Such as Figure 12 As shown, the leaf spring is integrally formed by three linear spring arms. Mounting holes are provided at both ends of the three linear spring arms. The inner ring 7 of the formed annular leaf spring is connected, and the outer ring 6 is connected on the outer side. Make installation more convenient. All the other are with embodiment 1.

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Abstract

The invention relates to a linear spring arm, a flat spring composed of linear spring arms and a compressor with the flat spring. The linear spring arm comprises at least two linear arms and a transition arc connected with the linear arms. The flat spring is composed of at least three linear spring arms. The linear spring arms are connected in a sleeving manner to form the annular flat spring. The compressor with the flat spring comprises a stator (3), a rotor (2), an air cylinder a (46) and a piston a (44). The piston a (44) is suspended in the air cylinder a (46) through the flat spring a (41). Compared with the prior art, the beneficial effects that the structure is reasonable, and the space utilization rate is high are achieved.

Description

technical field [0001] The invention relates to a reciprocating mechanism or a compressor, in particular to a linear spring arm, a leaf spring composed of it, and a compressor using the leaf spring. Background technique [0002] The compressor of a Stirling refrigerator or a pulse tube refrigerator is generally an oil-free lubrication compressor. In order to obtain a long life, a leaf spring is used to suspend the piston in the cylinder, so that the piston and the cylinder do not contact, and a gap is formed between the piston and the cylinder. The small gap forms a gap seal, which not only achieves the sealing effect, but also keeps the piston and cylinder out of contact, thus achieving long life. [0003] Leaf spring is a kind of spring with great radial stiffness and moderate axial stiffness. Generally, the compressor is cylindrical, and the leaf spring is correspondingly circular. The leaf spring is made of three or more spring arms processed on a circular steel plate, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/00
Inventor 朱绍伟
Owner TONGJI UNIV