Screw compressor directly driven by frameless permanent magnet synchronous motor

Abstract

The invention discloses a screw compressor directly driven by a frameless permanent magnet synchronous motor. The suction end cover is installed on the suction end seat; the bearings include four upper and lower thrust bearings arranged in the exhaust end seat, two upper and lower radial bearings arranged in the exhaust end seat and suction There are two upper and lower radial bearings in the air end seat; there are bearing seats between the suction end seat and the exhaust end seat and the bearings; the female rotor and the male rotor are arranged in the body, and the female rotor and the male rotor are provided with A mechanical seal, a shaft end gland and a synchronous gear, balance discs, motor plates and a frameless permanent magnet synchronous motor are arranged at both ends of the male rotor, and the frameless permanent magnet synchronous motor includes a flywheel rotor and a stator assembly. The invention has the beneficial effects of simple structure, convenient maintenance, low noise, low energy consumption, time saving and high efficiency, high degree of automation and more precise control precision.

Description

technical field [0001] The invention relates to a screw compressor, in particular to a screw compressor directly driven by a frameless permanent magnet synchronous motor. Background technique [0002] Screw compressors are divided into single-screw compressors and twin-screw compressors. It was first proposed by the German H.Krigar in 1878. It was not until 1934 that A.Lysholm of the Royal Institute of Technology in Sweden established this technology and began to apply it in industry. achieve rapid development. In 1956, the world's first oil-free screw compressor came out. In 1963, the world's first oil-filled screw compressor came out. [0003] With the development and comprehensive application of electronic technology, computer technology and automation, precision machinery and measurement technology, a new type of numerical control equipment integrating mechatronics has emerged. Once the numerical control equipment is used, it shows its unique superiority and strong vi...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned technical problems in the related art, the present invention proposes a screw compressor directly driven by a frameless permanent magnet synchronous motor, which can solve the problem of complex structure, low transmission efficiency, high energy consumption and slow response speed of existing screw compressors. , the problem of low control precision

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