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Rotary compressor

A technology for rotary compressors and compression mechanisms, which is applied to rotary piston/swing piston pump components, mechanical equipment, machines/engines, etc. It can solve problems such as low motor efficiency, abnormal wear, and large vibration, and achieve improved Reliability, friction reduction, vibration reduction effect

Inactive Publication Date: 2014-08-13
ANHUI MEIZHI PRECISION MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the above-mentioned deformation of the crankshaft, there are problems such as high input force, large vibration, high noise, low motor efficiency, and abnormal wear in the normal operation of the compressor.

Method used

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Embodiment Construction

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0031] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the presen...

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Abstract

The invention discloses a rotary compressor, comprising a shell, a compression mechanism and a motor. The compression mechanism comprises a main bearing and a crankshaft, wherein the crankshaft penetrates the main bearing. The motor is constructed to generate an unbalanced electromagnetic force which is applied onto the crankshaft, and the direction of the unbalanced electromagnetic force is opposite to the deformation direction of the part of the crankshaft contacting with the rotor. According to the invention, the deformation of the crankshaft is reduced; contact between the crankshaft and the upper end of the main bearing is reduced, or even avoided; stress on the upper end of the main bearing is decreased; the degree of bending deformation of members like the crankshaft and the main bearing is mitigated; reliability of the compressor is improved; the condition of decentraction of the rotor and a stator during operation can be improved; efficiency of the motor is enhanced; noise is reduced; fluctuation of load of the compression mechanism and the motor is reduced; vibration of the rotary compressor is reduced; and high frequency operation of the rotary compressor is guaranteed.

Description

technical field [0001] The invention relates to the refrigeration field, in particular to a rotary compressor. Background technique [0002] At present, rotary compressors have been widely used in large quantities, but the periodic load of rotary compressors due to periodic compression has brought many problems to the design and application of compressors. [0003] The rotary compressor carries a periodic gas load during operation. This gas load causes the crankshaft to bend and deform. The bent and deformed crankshaft causes the rotor fixed on the crankshaft to be out of center with the stator during operation, resulting in electromagnetic unbalanced force, electromagnetic unbalanced force The crankshaft deformation is further increased, and iterations are repeated until the gas load force, electromagnetic unbalanced force, and crankshaft deformation stress reach a balanced state. Due to the above-mentioned deformation of the crankshaft, there are deficiencies such as high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/00H02K1/16H02K3/28H02K1/22
Inventor 梁双建郭宏
Owner ANHUI MEIZHI PRECISION MFG
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