Single-screw compressor star wheel-screw meshing pair liquid spraying lubrication structure and design method

Abstract

According to the single-screw compressor star wheel-screw meshing pair liquid spraying lubrication structure and the design method, the liquid spraying lubrication structure comprises a star wheel body internally provided with a plurality of channels, outlets corresponding to all the channels are formed in different positions of the side faces of star wheel teeth, cooling liquid is led into the channels from inlets corresponding to all the channels, then drainage is conducted through the channels, and therefore the liquid spraying lubrication effect is achieved. And finally, the oil is sprayed into the star wheel-screw rod meshing pair from an outlet corresponding to each channel, so that precise lubrication of the star wheel-screw rod meshing pair is realized. The design method comprises the following steps: calculating a star wheel rotation angle range when the star wheel is engaged with the screw rod, so that the size of the liquid supply port corresponds to the star wheel rotation angle range. And when the inlets communicate with the liquid supply ports, cooling liquid is introduced into the channels from the inlets corresponding to the channels, and when the inlets leave the liquid supply port area, liquid supply of the corresponding channels is finished. Precise lubrication between the tooth side of the meshing pair star wheel and the tooth groove of the screw can be achieved, and excessive liquid spraying on the star wheel teeth not in the meshing range is avoided.

Description

technical field [0001] The invention belongs to the technical field of compressor structure design, and in particular relates to a single-screw compressor star wheel-screw meshing pair liquid spray lubrication structure and a design method. Background technique [0002] The single-screw compressor is a positive displacement compressor. The core components of the existing single-screw compressors in the market are a cylindrical screw and two symmetrically distributed star wheels. During the working process, the star gear teeth meshed in the screw groove, the screw groove and the inner cavity of the casing together constitute the working volume, and the star wheel is driven to rotate by the screw to realize the suction, compression and exhaust of the single screw compressor. [0003] The single-screw compressor has the advantages of simple structure, few wearing parts, small size and light weight, and because of its good structural symmetry, the gas force on the screw can be s...

AI Technical Summary

Problems solved by technology

In some special fields, such as water vapor compressors, spraying liquid (such as water) may reduce the exhaust parameters and fail to meet the process requirements.

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