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A closed refrigeration compressor

A refrigeration compressor, closed technology, applied in the direction of liquid variable capacity machinery, mechanical equipment, variable capacity pump components, etc., can solve the problem of unbalanced operation of refrigeration compressors, affecting the service life of compressors, and large wear of piston pins, etc. problems, to achieve the effect of high use value, low noise and long service life

Active Publication Date: 2015-09-02
HANGZHOU QIANJIANG REFRIGERATION COMPRESSOR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a hermetic refrigeration compressor with stable operation and low noise in order to solve the problem of unbalanced work and high noise of the refrigeration compressors in the prior art.
[0004] The second object of the present invention is to provide a hermetic refrigeration compressor with a long service life in order to solve the problem that the piston pin of the refrigeration compressor in the prior art wears heavily and affects the service life of the compressor.

Method used

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  • A closed refrigeration compressor
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  • A closed refrigeration compressor

Examples

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Embodiment 1

[0036] in such as figure 1 In the shown embodiment 1, a hermetic refrigeration compressor includes a body 1 and a hermetic shell, the hermetic shell is formed by welding the upper shell 16 and the lower shell 17, and the control device 24 is arranged outside the shell. The motor 15 is arranged in the housing and connected with the crankshaft 6. The crankshaft is arranged vertically. The lower part of the crankshaft is hollow to form an oil suction pipe 19 extending into the refrigerating machine oil 26. A cylinder is arranged on the radial direction of the crankshaft, and a cylinder head 18 is arranged on the cylinder. , Suction valve plate 22, valve plate 21 and exhaust valve plate 20. Piston 3 is fitted in the piston hole 2 on the body, the piston is provided with a connecting rod 4 fixed to the piston, the fixed end 11 of the connecting rod is crimped with the piston, the connecting rod is provided with a speed regulating chute 5, the speed regulating slide The groove is a...

Embodiment 2

[0038] Embodiment 2 The connecting rod and the piston are in a screw connection structure, and the speed regulating chute on the connecting rod is slightly S-shaped, and the connection line between the first and the end of the speed regulating chute and the length direction of the connecting rod are arranged in an inclined shape, and the speed regulating chute The inclination direction of the chute is consistent with the rotation direction of the crank throw on the crankshaft, and the speed regulating chute is a center-symmetrical structure (see Figure 13 ), and the rest are the same as in Example 1.

Embodiment 3

[0040] The connecting rod and the piston of embodiment 3 have an integrated structure, and the rest are the same as embodiment 1.

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Abstract

The invention discloses a closed type refrigeration compressor which comprises a bent shaft and at least one cylinder which is arranged in the radial direction of the bent shaft and driven by the bent shaft. A piston of the cylinder is provided with a connecting rode which is fixedly connected with the piston. The connecting rod is provided with a speed regulating sliding groove. The length, at the horizontal direction of the connecting rod, of the speed regulating sliding groove is matched with the rotating diameter of crank throw on the bent shaft. The crank throw on the bent shaft is connected inside the speed regulating sliding groove in a sliding mode. The closed type refrigeration compressor effectively solves the problems of imbalance operation and large noise of a closed type refrigeration compressor in the prior art. The closed type refrigeration compressor is stable in structure operation, low in noise, long in service life, and suitable for closed type refrigeration compressors of different types.

Description

technical field [0001] The invention relates to a refrigeration compressor, in particular to an improved low-noise hermetic refrigeration compressor. Background technique [0002] The refrigerating compressor of the prior art widely adopts the crankshaft-connecting rod mechanism, and the rotation of the crankshaft drives the piston to reciprocate through the oscillating connecting rod, thereby completing the function of the refrigerating compressor. But when the piston of this structure reciprocates, the angle of rotation of the crankshaft is not proportional to the displacement of the piston. When the piston is close to the upper and lower dead centers, the angle of rotation of the crankshaft is relatively large and the displacement of the piston is very small. Under the condition that the crankshaft rotates at a constant angular velocity, the piston undergoes a cycle of acceleration-deceleration-acceleration-deceleration. In this working mode, one is that the output torqu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B35/04F04B39/00
Inventor 张云
Owner HANGZHOU QIANJIANG REFRIGERATION COMPRESSOR GRP CO LTD