Supporting device of screw compressor

Abstract

The invention discloses a supporting device of a screw compressor. The supporting device comprises an air cylinder, a male rotor and a female rotor; an end cover is connected with one end of the air cylinder in a matched manner; two grooves are formed in the end cover; one end of the male rotor is sleeved with a first bearing bush; one end of the female rotor is sleeved with a second bearing bush;the first bearing bush and the second bearing bush are connected with the corresponding grooves in a matched manner; two through holes are formed in one end, far away from the end cover, of the air cylinder; the male rotor and the female rotor are connected with the corresponding through holes in a matched manner through bearings; the other end of the male rotor is sleeved with a first gear; theother end of the female rotor is sleeved with a second gear; the first gear and the second gear are connected in a meshing manner; and one end, far away from the end cover, of the air cylinder is connected with a bearing cover in a matched manner. The supporting device has the advantages as follows: the supporting device is simple in structure, the space occupied by the compressor is reduced, theradial bearing capacity of the supporting device is increased, two seal structures are omitted, and the supporting device has the good market prospect.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a support device for a screw compressor. Background technique [0002] At present, most of the screw compressors at home and abroad adopt the structure of a pair of intermeshing male and female rotors with a special screw shape installed in a housing. The front end of the male rotor is connected with the driving mechanism, and the rear end of the male rotor is provided with a supporting device, which is used to bear the radial force and axial force under the operating condition of the screw compressor main shaft. Corresponding sealing devices are also provided at the front and rear ends of the male and female rotors. [0003] The existing support device has the following disadvantages: the existing support device has many parts and takes up a large space, the radial force of the male and female rotors cannot be well controlled, and the compressor is prone to vibration when t...

AI Technical Summary

Problems solved by technology

[0003] The existing support device has the following disadvantages: the existing support device has many parts and takes up a large space, the radial force of the male and female rotors cannot be well controlled, and the compressor is prone to vibration when the rotor rotates at high speed. Directly affect the service life of the compressor

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