Sealing structure of exhaust end shaft neck hole of screw compressor

Abstract

The invention discloses a sealing structure of an exhaust end shaft neck hole of a screw compressor. The sealing structure of the exhaust end shaft neck hole of the screw compressor comprises a conveyor belt, a laser grinder, an automatic paint spraying machine, a material injection groove, a mold cavity, an ejector needle plate and a support. A material injection opening is formed in the materialinjection groove, and the material injection groove is connected with the mold cavity through a flow channel. A guide hole is formed in the mold cavity, and a machine shell shaped groove and a rear end seat shaped groove are formed in the mold cavity. The ejector needle plate is fixedly installed at the bottom of the mold cavity, is connected with the support, and is connected with the conveyor belt. The laser grinder is arranged above the conveyor belt, and the automatic paint spraying machine is fixedly installed on the conveyor belt. According to the sealing structure of the exhaust end shaft neck hole of the screw compressor, a whole manufacturing technology of machine shell and the rear end seat casting is adopted, the defects of different shafts caused by two body machining are overcome, and meanwhile, the manufacturing cost is 25% lower than the cost of screw expander shell and rear end seat separately manufacturing in the current market.

Description

technical field [0001] The invention relates to the technical field of exhaust end seat equipment, in particular to a sealing structure for a journal hole at the exhaust end of a screw compressor. Background technique [0002] At present, the current manufacturing process of shells and end seats is mainly composed of processes such as cutting, grinding, stamping, bending, grinding and assembly. Among them, frosting is to roughen the metal sheet; stamping and bending are to shape the shell; grinding is to smooth the surface of the shell; and assembly is to assemble the shell and the end seat together. However, the existing production process steps for the shell and the end seat are complicated, and the metal shell manufactured by this production process has major defects. Stamping, bending and grinding processes will cause damage to the surface of the sheet metal, so that the service life of the shell made of sheet metal is short, and it is prone to corrosion after long-term...

AI Technical Summary

Problems solved by technology

However, the existing production process steps for shells and end seats are complicated, and the metal shells manufactured by this production process have major defects

Stamping, bending and grinding processes will cause damage to the surface of the sheet metal, making the shell made of sheet metal shorter in service life, and prone to corrosion after long-term use

At the same time, during the stamping and bending process of the metal sheet, gaps will appear at the connection of the metal sheet

Not only that, the separate processing and production of the screw expander shell and the exhaust end seat in the market not only greatly increases the manufacturing cost, but also easily causes the phenomenon that the two bodies are processed on different axes

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