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Crankshaft oil channel structure and crankshaft and compressor comprising same

A crankshaft and oil circuit technology, which is applied in the field of compressors, can solve the problems of large throttling loss of bearings, and achieve the effects of reducing power loss, reducing pressure, and reducing throttling loss

Pending Publication Date: 2017-01-18
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect of large bearing throttling loss in the compressor in the prior art, so as to provide a crankshaft oil circuit structure and a crankshaft and compressor with it

Method used

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  • Crankshaft oil channel structure and crankshaft and compressor comprising same
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  • Crankshaft oil channel structure and crankshaft and compressor comprising same

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specific Embodiment approach

[0073] Such as figure 1 As shown, during the operation of the compressor, the oil circuit system in the traditional scroll compressor is that the oil in the oil sump at the bottom of the compressor enters the internal oil supply hole of the crankshaft through the oil suction pipe and the oil guide plate, and the oil supplied by the crankshaft The hole has an eccentric structure, which can generate centrifugal force, so that the oil in the oil supply hole can smoothly rise to the head of the crankshaft. After the oil passes through the axial oil outlet hole, it lubricates the moving disc bearing, flows into the back pressure oil pool, and then passes through the oil return pipe to release the oil. Return to the oil pool at the bottom of the compressor to form an oil circuit cycle.

[0074] In the crankshaft oil circuit structure of the scroll compressor of the present invention, the oil passing through the oil hole 2 rises to the crankshaft head 12, and the oil circuit at the h...

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Abstract

The invention provides a crankshaft oil channel structure and a crankshaft and a compressor comprising the same. The crankshaft (1) comprises a crankshaft spindle (11) and a crankshaft head (12) connected with the crankshaft spindle. An oil hole (2) extending in the axis direction of the crankshaft is formed in the crankshaft spindle (11). A radial oil outlet (3) is formed in the crankshaft head in the radial direction of the crankshaft. One end of the radial oil outlet (3) communicates with the oil hole (2), and the other end of the radial oil outlet (3) is formed in the radial peripheral wall of the crankshaft head (12) so that oil can flow out of the crankshaft (1). Through the crankshaft, oil can be discharged along the radial periphery face of the crankshaft head through the radial oil outlet, the oil throttling loss caused by a bearing gap can be lowered, and thus the oil supply power loss can be lowered; and a high-pressure zone of a middle zone in the axial direction of an oil film can be reduced or broken, the pressure of the oil film connected with a bearing is reduced and is more even, and the siding resistance of the bearing in the rotation process is lowered.

Description

technical field [0001] The invention belongs to the technical field of compressors, and in particular relates to a crankshaft oil circuit structure and a crankshaft and a compressor with the same. Background technique [0002] At present, the pump body and bearings of the scroll compressor need lubricating oil to lubricate during operation, so as to maintain the excellent performance of the compressor. Due to gravity, the lubricating oil of the compressor is accumulated at the bottom of the whole machine, so the oil hole is usually designed inside the crankshaft to suck the lubricating oil to the pump body and bearings for lubrication. The scroll compressor is equipped with three more bearings. Among them, the upper eccentric bearing and the middle main bearing bear relatively large loads, and the heat generated by the bearings is large. If the oil supply is insufficient, it is easy to cause damage to the bearings. Therefore, the oil circuit design of the shafting and The d...

Claims

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Application Information

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IPC IPC(8): F16C3/14F16C3/06F04C29/00
CPCF04C29/00F16C3/06F16C3/14
Inventor 李小雷单彩侠曲静刘磊陈肖汕
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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