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Crankshaft rotor assembly, compressor and air conditioner

A rotor and crankshaft technology, applied in the field of air conditioning, can solve the problems of high cost, complicated operation, and high machining accuracy of the crankshaft, and achieve the effects of low cost, increased contact area, accurate and convenient installation

Pending Publication Date: 2022-01-28
郑州凌达压缩机有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a crankshaft-rotor assembly, a compressor and an air conditioner, aiming at solving the problems of high machining accuracy requirements for the crankshaft and complex operation and high cost of the crankshaft and rotor using the "shrink fit" cooperation method

Method used

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  • Crankshaft rotor assembly, compressor and air conditioner
  • Crankshaft rotor assembly, compressor and air conditioner
  • Crankshaft rotor assembly, compressor and air conditioner

Examples

Experimental program
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Effect test

Embodiment example 1

[0052]A crankshaft rotor assembly, including a crankshaft, a rotor and a bushing, the crankshaft includes a long shaft section, the upper part of the long shaft section is a truncated cone, and the inside of the bushing is a truncated cone that fits the truncated cone of the crankshaft , the rotor is provided with a mounting hole, and the bushing is set outside the crankshaft and is interference fit with the mounting hole of the rotor. The frustum of the crankshaft passes through the bushing and is fixedly installed in the installation hole of the rotor. The long axis section of the crankshaft also includes a cylinder, and the cylinder is connected with the truncated cone. The bush is provided with several grooves. The groove body is a U-shaped groove. The U-shaped grooves extend axially and are evenly distributed around the bushing, and the openings of two adjacent U-shaped grooves have different orientations. The mounting hole of the rotor is cylindrical, and the outside ...

Embodiment example 2

[0054] A crankshaft rotor assembly, including a crankshaft, a rotor and a bushing, the crankshaft includes a long shaft section, the upper part of the long shaft section is a truncated cone, and the inside of the bushing is a truncated cone that fits the truncated cone of the crankshaft , the rotor is provided with a mounting hole, and the bushing is set outside the crankshaft and is interference fit with the mounting hole of the rotor. The frustum of the crankshaft passes through the bushing and is fixedly installed in the installation hole of the rotor. The long axis section of the crankshaft also includes a cylinder, and the cylinder is connected with the truncated cone. The bush is provided with several grooves. The groove body is a U-shaped groove. The U-shaped grooves extend axially and are evenly distributed around the bushing, and the openings of two adjacent U-shaped grooves have different orientations. The mounting hole of the rotor is cylindrical, and the outside...

Embodiment example 3

[0056] A crankshaft rotor assembly, including a crankshaft, a rotor and a bushing, the crankshaft includes a long shaft section, the upper part of the long shaft section is a truncated cone, and the inside of the bushing is a truncated cone that fits the truncated cone of the crankshaft , the rotor is provided with a mounting hole, and the bushing is set outside the crankshaft and is interference fit with the mounting hole of the rotor. The frustum of the crankshaft passes through the bushing and is fixedly installed in the installation hole of the rotor. The long axis section of the crankshaft also includes a cylinder, and the cylinder is connected with the truncated cone. The bush is provided with several grooves. The groove body is a U-shaped groove. The U-shaped grooves extend axially and are evenly distributed around the bushing, and the openings of two adjacent U-shaped grooves have different orientations.

[0057] The installation hole of the rotor is in the shape of...

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Abstract

The invention discloses a crankshaft rotor assembly, a compressor and an air conditioner. The air conditioner comprises the compressor, the compressor comprises the crankshaft rotor assembly, the crankshaft rotor assembly comprises a crankshaft, a rotor and a lining, the crankshaft comprises a long shaft section, the upper portion of the long shaft section is a circular truncated cone body, the interior of the lining is in a circular truncated cone shape matched with the circular truncated cone body of the crankshaft, the rotor is provided with a mounting hole, and the lining is arranged outside the crankshaft in a sleeving mode and is in interference fit with the mounting hole of the rotor. The lining is additionally arranged between the crankshaft and the rotor, extrusion of the lining and the circular truncated cone face of the crankshaft is facilitated, the lining is expanded, and therefore tight combination among the crankshaft, the bush and the rotor is achieved. The method can reduce the precision requirements on the outer diameter of the crankshaft and the inner diameter of the mounting hole of the rotor, is easier to process, and has the advantages of high efficiency and low cost.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a crankshaft rotor assembly, a compressor and an air conditioner. Background technique [0002] Electromagnetic power is generated between the motor and the rotor in the refrigeration compressor, the rotor rotates, and the power is supplied to the working area through the crankshaft to realize the compression and discharge of the refrigerant. [0003] Interference fit is generally used between the crankshaft and the rotor, and the method of heating the rotor to make the inner diameter larger and then mating with the crankshaft is often used, that is, "shrink fit", but this matching method has a great impact on the accuracy of the dimensions of the crankshaft outer diameter and rotor inner diameter. The requirements are relatively high, and the diameter tolerance level of the long shaft section of the crankshaft is required to be between IT4-IT7, and the crankshaft is a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/00
CPCF04C29/00F04C2240/20F04C2240/601F04C2240/605
Inventor 刘振王柳青张小伟陈莹
Owner 郑州凌达压缩机有限公司
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