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Rotary compressor

A compressor and rotary technology, which is used in mechanical equipment, rotary piston/swing piston pump components, machines/engines, etc., can solve the problems of oil supply to crankshaft stroke increase, etc., and achieve low production cost and sufficient lubrication. Scope of application, effect of reducing the amount of refrigerant enclosed

Active Publication Date: 2013-05-08
GUANGDONG MEIZHI COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the crankshaft is lengthened, there is a problem that the stroke for supplying oil to the crankshaft increases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] see figure 1 , is the internal structure of the rotary compressor R of the present invention. The rotary compressor R is composed of a compression mechanism R2 and a motor 3 , and the compression mechanism R2 and the motor 3 are housed and fixed in the sealed case 1 . The compression mechanism R2 is disposed on the upper portion of the sealed case 1, and the motor 3 is disposed below the compression mechanism R2.

[0035] The compression mechanism R2 is composed of the main bearing 5 and the cylinder 22 fixed on its upper part, the piston 24 revolving in the cylinder compression chamber 23, the sliding plate 25 whose tip slides with the piston 24, the crankshaft 18 that drives the piston 24, and the sealed cylinder compression. The secondary bearing 26 of the cavity 23 constitutes. The crankshaft 18 is composed of a main shaft 19 , an eccentric shaft 31 and a sub shaft 20 , and the main shaft 19 and the sub shaft 20 are respectively supported by the main bearing 5 and...

Embodiment 2

[0060] In Embodiment 1, the spiral plate 48 is disposed on the first spindle center hole 17a.

[0061] see Figure 13 , In the second embodiment, the spiral plate 48 is omitted, and instead, the central tube 62 is installed on the central hole 17b of the second main shaft. The oil reaching the upper end of the center pipe 62 is scattered from the opening end of the center pipe 62 to the inner wall of the first spindle center hole 17a by the action of the decompression device 6 of the rotor 35 . At this time, due to the centrifugal force of the rotating crankshaft 18, the oil scattered on the inner wall of the first main shaft center hole 17a is increased in stroke, and the oil can be supplied to the auxiliary bearing space 21. As a result, the same effect as that of Example 1 can be exhibited.

[0062] The feature of the second embodiment is that the stroke of the oil can be increased through the action of the center pipe 62 .

[0063] In the second embodiment, the gas pass...

Embodiment 3

[0068] see Figure 14 , the present embodiment is characterized in that: the diameters of the first main shaft center hole 17a and the second main shaft center hole 17b are designed to be the same, and in the first main shaft center hole 17a and the second main shaft center hole 17b, the lowering of the rotor 35 A spiral plate 48 is arranged below the mounting position of the pressing device 6 .

[0069] Through the function of the decompression device 6 of the rotor 35, the oil rising from the central hole 17a of the first main shaft can be synchronized with the rotation speed of the crankshaft 18 through the function of the spiral plate 48, thereby increasing the centrifugal force. As a result, oil can rise to the sub-bearing space 21 as in the first embodiment.

[0070] As in the third embodiment, even if the helical plate 48 is disposed below the pressure reducing device 6 of the rotor 35, the same function and effect as the embodiment can be exerted.

[0071] See the fi...

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Abstract

The invention relates to a rotary compressor. In the compressor, a compression mechanism and a motor are arranged in a sealing shell; an oil sump is arranged at the bottom of the sealing shell; the compression mechanism comprises a crankshaft; the crankshaft comprises a main shaft which is provided with a main shaft central hole along the rotary center of the crankshaft and is supported by a mainbearing and an eccentric shaft of which the periphery is in sliding connection with the inner wall of a rotating piece; the lower end of the main shaft central hole is communicated with the oil tank;the motor comprises a rotor and a stator; a voltage reduction device is arranged at one end, which faces the main bearing, of the rotor; the voltage reduction device comprises a first end ring which is arranged on the end part of the rotor and is provided with an end ring groove and an end plate which is arranged on the first end ring and covers the end ring groove; the first end ring, the end plate and the rotor enclose end ring space; more than one air passage pipe is arranged on the side wall of the main shaft positioned in the end ring space; and one end of the air passage pipe is communicated with the end ring space, and the other end of the air passage pipe is communicated with the main shaft central hole. The rotary compressor has the characteristics of simple structure, good lubricating effect and wide application range.

Description

technical field [0001] The invention relates to a rotary compressor, in particular to a rotary compressor comprising a rotary compressor and a scroll compressor. Background technique [0002] In recent years, rotary compressors and scroll compressors have spread rapidly all over the world, and the size of the compressors is advancing. These compressors are provided with an oil pool at the bottom of the sealed shell, and a motor is provided above the oil pool, and in the rotary compressor with a compression mechanism on the upper part of the motor, because the oil supply stroke of the crankshaft increases, if only the previous method is used: In the method of centrifugal oil suction accompanying the rotation of the crankshaft, the stroke for supplying oil to the compression mechanism will be insufficient. Therefore, when the crankshaft is lengthened, there is a problem that the stroke for supplying oil to the crankshaft increases. Contents of the invention [0003] The ob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C29/00
Inventor 小津政雄陈振华
Owner GUANGDONG MEIZHI COMPRESSOR