Crank shaft roller structure, compressor and air conditioner

A roller and crankshaft technology, applied in the field of compressors, can solve the problems of poor assembly coaxiality, clamping and clamping of the upper and lower flanges of the crankshaft, and achieve the effects of improving performance, reducing friction, and reducing frictional loss of power.

Inactive Publication Date: 2018-06-05
ZHUHAI LANDA COMPRESSOR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the assembly coaxiality difference between the crankshaft rollers in the prior art and the included angle between the coaxial lines, which cause the crankshaft and rollers to be easily locked, and the crankshaft, rollers, etc. Roller and cylinder, upper and lower flange clamping defects, thus providing a crankshaft roller structure, compressor and air conditioner

Method used

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  • Crank shaft roller structure, compressor and air conditioner
  • Crank shaft roller structure, compressor and air conditioner
  • Crank shaft roller structure, compressor and air conditioner

Examples

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Comparison scheme
Effect test

Embodiment 1

[0042] like figure 1 As shown, the present invention provides a crankshaft roller structure, which includes:

[0043] Crankshaft 1 with eccentric portion 11;

[0044] Roller 2, which is sleeved on the outer circumference of the eccentric portion 11;

[0045] And the outer peripheral surface of the eccentric portion 11 is a first spherical surface, the inner peripheral surface of the roller 2 is a second spherical surface, and the second spherical surface is adapted to the first spherical surface, so that the The roller 2 can be driven to rotate by the eccentric portion 11 .

[0046] By setting the outer peripheral surface of the eccentric portion as a first spherical surface, the inner peripheral surface of the roller is a second spherical surface, and the second spherical surface is adapted to the first spherical surface, so that The rollers can be driven by the eccentric part to rotate, which can make the contact between the crankshaft and the rollers a spherical contact ...

Embodiment 2

[0053] like figure 2 As shown, in this embodiment, on the basis of embodiment 1, the specific structure of the roller is replaced accordingly, and the others are the same as in embodiment 1. The axis of the roller is along the vertical direction, and along the direction of the axis of the roller, the diameter of the inner peripheral surface of the roller perpendicular to the axis of the roller decreases gradually from bottom to top, and the lower end surface of the roller Opening diameter = diameter D2 of the second spherical surface. The eccentric part of the crankshaft is designed from the original cylindrical shape to a spherical shape, and the ball diameter of the eccentric part of the crankshaft D1 = 0.6 times the diameter of the cylinder; the interior of the roller is designed from the original cylindrical shape to a spherical shape, and the inner ball diameter of the roller D2 = the ball diameter of the eccentric part of the crankshaft + 0.02 mm. The diameter of the ...

Embodiment 3

[0055] like image 3 As shown, in this embodiment, on the basis of embodiment 1, the specific structure of the roller is replaced accordingly, and the others are the same as in embodiment 1.

[0056] The roller 2 is a split structure, including more than two roller blocks distributed along the axis of the roller. This is the preferred structural form of the crankshaft roller structure of the present invention. By adopting the roller of the split structure, the roller and the eccentric part of the crankshaft can be partially engaged and then spliced ​​together, preventing the eccentric part of the crankshaft from The diameter is larger than the diameter of the upper and lower end faces of the roller and cannot be assembled.

[0057] Preferably,

[0058] The axes of the rollers are along the vertical direction, and the roller blocks include a first roller block 21 located axially above and a second roller block 22 located axially below, the first roller block 21 The lower end...

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Abstract

The invention provides a crank shaft roller structure, a compressor and an air conditioner. The crank shaft roller structure comprises a crank shaft (1) and a roller (2), wherein the crank shaft (1) is provided with an eccentric part (11); the roller (2) sleeves the periphery of the eccentric part (11); the outer peripheral surface of the eccentric part (11) is a first spherical surface and the inner peripheral surface of the eccentric part (11) is a second spherical surface; the second spherical surface is adaptive to the first spherical surface, so that the roller (2) can be driven by the eccentric part (11) to rotate. By adopting the crank shaft roller structure provided by the invention, the contact between the crank shaft and the roller is space spherical contact, and the crank shaftand the roller are allowed to do space three-dimensional relative rotation, and coaxiality deviation and co-axis included angle of the crank shaft and the roller, caused by factors including an external force and the like, are automatically adjusted, and friction is reduced; friction, even insufficient power transmission, caused by the fact that the crank shaft and the roller are pressed by an external force and an internal force can be effectively reduced; the performance of the compressor is improved and the reliability is increased.

Description

technical field [0001] The invention belongs to the technical field of compressors, and particularly relates to a crankshaft roller structure, a compressor and an air conditioner. Background technique [0002] The eccentric part of the crankshaft of the existing compressor pump body is cylindrical, the rollers are cylindrical, and the contact between the crankshaft and the rollers is a vertical cylindrical surface, which can only move in a three-dimensional vertical direction and rotate radially, and cannot be automatically adjusted. Running clearance and direction between crankshaft and rollers. In order to achieve the ideal pump body design function, the size and accuracy of the parts are extremely demanding, which is not conducive to assembly and production. Once the size and accuracy of the parts are reduced, the friction between the crankshaft, the rollers, the upper flange, the lower flange and the cylinder will increase, and the power will increase; and during the ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/00
CPCF04C29/00F04C2240/20
Inventor 周学怀雷卫东谢利昌王勇李旺宏陈泉王名耀
Owner ZHUHAI LANDA COMPRESSOR
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