Rolling piston used for refrigeration compressor

A technology of refrigeration compressors and rolling pistons, which is applied in the direction of machines/engines, rotary piston type/oscillating piston type pump components, mechanical equipment, etc., which can solve the problems of difficult processing, complex structure, high cost, etc., and facilitate mass production , The structure of the piston is simple and the processing cost is low

Inactive Publication Date: 2016-10-26
NINGBO YONGWEI GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For a long time, the rolling pistons used in refrigeration compressors are of solid structure and relatively heavy, which in turn results in high energy consumption for driving the pistons to rotate.
After research, the applicant has obtained

Method used

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  • Rolling piston used for refrigeration compressor
  • Rolling piston used for refrigeration compressor
  • Rolling piston used for refrigeration compressor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1, such as figure 1 As shown, the rolling piston for a refrigeration compressor includes an inner tube 1 and an outer tube 2. One end of the inner tube is axially provided with an outward rib 11, and one end of the outer tube is axially provided with an inward rib 21, the inner tube, A cavity 6 is formed between the outer tubes.

[0024] The inner tube rib 11 and the inner surface 23 of one end of the outer tube are connected by welding 3, and the outer tube rib 21 and the outer surface 13 of the inner tube are connected by welding 3.

Example Embodiment

[0025] Example 2, such as figure 2 Shown as figure 1 As shown, the rolling piston for a refrigeration compressor includes an inner tube 1 and an outer tube 2. One end of the inner tube is axially provided with an outward rib 11, and one end of the outer tube is axially provided with an inward rib 21, the inner tube, A cavity 6 is formed between the outer tubes.

[0026] The inner tube rib 11 and the inner surface 23 at one end of the outer tube are connected to form an interference connection 4, and the outer tube rib 21 and the outer surface 13 of the inner tube are connected to the interference connection 4.

[0027] The above-mentioned cavity is filled with plastic 5 to increase the supporting force for the inner tube and the outer tube.

[0028] The above-mentioned filling plastic 5 can be injected into the cavity 6 by the through hole 15 provided on the rib of the inner tube, or can be injected into the cavity 6 by the through hole (not shown in the figure) provided on the rib ...

Example Embodiment

[0029] Example 3, such as image 3 As shown, the cavity 3 is not filled with plastic 5, and the rest is the same as in Embodiment 2.

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PUM

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Abstract

The invention provides a rolling piston used for a refrigeration compressor. The rolling piston comprises an inner pipe and an outer pipe. One end surface of the inner pipe is axially provided with an outward flange. One end surface of the outer pipe is axially provided with an inward flange. The flange of the inner pipe is connected with one end of the outer pipe. The flange of the outer pipe is connected with one end of the inner pipe. A cavity is formed between the inner pipe and the outer pipe. According to the rolling piston used for the refrigeration compressor, due to the fact that the structure of the rolling piston is simplified to the inner pipe provided with the outward flange and the outer pipe provided with the inward flange, and machining of the inner pipe and the outer pipe is easy, the whole piston is simple in structure, low in machining cost and high in yield, and mass production is convenient.

Description

technical field [0001] The invention relates to a rolling piston for a refrigeration compressor used in a compressor. Background technique [0002] The rotary refrigeration compressor uses the rotation of the eccentric refrigeration compressor in the cylinder to cause the change of the working volume to compress the gas. Because of its simple structure and reliable performance, it has become one of the most common compressors in the market. [0003] The rolling piston is an important part of the rotary refrigeration compressor sleeve. It is set on the eccentric shaft of the compressor. When the main shaft rotates under the drag of the prime mover, the eccentric refrigeration compressor uses the rolling piston to rotate against the inner wall of the cylinder, causing a space change in volume. So as to achieve the purpose of compressing the refrigerant vapor. With the improvement of people's awareness of environmental protection, the refrigerants used in rotary compressors a...

Claims

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Application Information

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IPC IPC(8): F04C29/00
CPCF04C29/00F04C2240/80
Inventor 庄希平林国富郑贺
Owner NINGBO YONGWEI GROUP
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