Oil pump of compressor and variable frequency compressor

A technology for compressors and oil pumps, applied in the field of compressors, can solve the problems of high installation space requirements, high oil storage requirements, complex installation layout structures, etc., and achieve the effect of avoiding load increase

Active Publication Date: 2017-01-04
黄石东贝压缩机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The object of the present invention is to provide an oil pump of a compressor and a variable frequency compressor, so as to solve the complex installation arrangement structure, high requirements for installation space, high

Method used

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  • Oil pump of compressor and variable frequency compressor
  • Oil pump of compressor and variable frequency compressor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0063] Example one:

[0064] In the alternative solution of this embodiment, such as figure 1 As shown, further, the lower oil delivery hole 9 is a spiral hole formed by the inner wall of the pump sleeve 4 and a spiral groove provided on the outer wall of the lower mandrel 3 in cooperation. In this embodiment, the spiral hole is formed by the inner wall of the pump sleeve 4 and the spiral groove provided on the outer wall of the lower mandrel 3. When the lower mandrel 3 rotates, the spiral hole can lift the lubricating oil in the oil pool 10 and transport it upward. And at low speed, the oil can be transported to a higher position.

[0065] In the alternative solution of this embodiment, such as figure 1 As shown, further, the shape of the lower mandrel 3 is a truncated cone, the diameter of its upper end surface is smaller than the diameter of its lower end surface, the inner wall of the pump sleeve 4 fits the outer wall of the lower mandrel 3; while the pump sleeve 4 is floatin...

Example Embodiment

[0066] Embodiment two:

[0067] In the alternative solution of this embodiment, such as figure 2 As shown, further, the lower oil delivery hole 9 is arranged obliquely and communicates with the ring cavity 7 and the oil pool 10. The lower oil delivery hole 9 is arranged in the body of the lower mandrel 3 to form a certain inclination angle with the vertical mandrel axis, and the lubricating oil in the oil pool 10 can be introduced into the ring cavity 7 by centrifugal force when the mandrel rotates. The oil pump of this structure reduces the stirring effect of the part of the outer wall of the lower mandrel 3 immersed in the oil pool on the lubricating oil, and reduces the energy consumption level and noise level.

[0068] In the alternatives of the first and second embodiments, further, a ring groove or a blind hole is provided on the side wall of the slot 5 of the crankshaft 1. In this embodiment, since the upper mandrel 2 and the slot 5 are in an interference fit, the elastic...

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Abstract

The invention provides an oil pump of a compressor and a variable frequency compressor. The oil pump comprises a crankshaft, a mandrel and a pump sleeve; the mandrel includes an upper mandrel and a lower mandrel; a groove hole is formed in the lower end surface of the crankshaft; a throttling hole is formed in the side wall of the crankshaft; the pump sleeve is formed with an annular cavity at the connecting part of the upper mandrel and the lower mandrel; an upper oil conveying hole is formed in the side wall of the upper mandrel; a lower oil conveying hole is formed in the lower mandrel; and when the mandrel rotates, lubricating oil can enter a space of the outer side wall of the crankshaft by passing through the lower oil conveying hole, the annular cavity, the upper oil conveying hole, the groove hole and the throttling hole in sequence from an oil pool. The variable frequency compressor is provided with the oil pump. In the oil pump of the compressor and the variable frequency compressor, the mandrel in the oil pump rotates, and the pump sleeve dose not rotate, but moves in the axis direction of the mandrel, so that the oil pumping capacity control of the compressor is realized; and the oil pump has such advantages as simple structure, convenience for installation, lower needed oil storage quantity and lower noise and system influence.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to an oil pump of a compressor and a variable frequency compressor. Background technique [0002] A compressor is a driven fluid machine that elevates low-pressure gas to high-pressure gas, and is the heart of the refrigeration system. It inhales low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle, thereby realizing compression → condensation (heat release ) → Expansion → Evaporation (endothermic) refrigeration cycle. [0003] The structure of the compressor includes cylinder block, rotor, stator, piston, valve plate, connecting rod, crankshaft, end cover and other components. Among them, there are many relatively moving parts, especially the relative moving pa...

Claims

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Application Information

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IPC IPC(8): F04B39/02
CPCF04B39/0284
Inventor 王道富杨宏林银坤尤琼兵吴其林袁庆庆
Owner 黄石东贝压缩机有限公司
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