Air-cooling oil-free scroll air compressor

Abstract

The invention discloses an air-cooling oil-free scroll air compressor. The air-cooling oil-free scroll air compressor comprises a shell, an eccentric driving shaft, a dynamic disc, a static disc, an air suction port and an air exhaust port; the eccentric driving shaft penetrates through the middle of the shell and is used for introducing external power; the center of the dynamic disc is pivoted atthe output end of the eccentric driving shaft, the dynamic disc revolves along with the output end of the eccentric driving shaft, one face of the dynamic disc is provided with a dynamic scroll part,the head part of the dynamic scroll part is provided with a first arc, a first straight line and a second arc, the diameter of the first arc ranges from 10 mm to 15 mm, and the diameter of the secondarc ranges from 1 mm to 3 mm; the static disc is provided with a static scroll part with the shape line parameter same as the shape line parameter of the dynamic scroll part of the dynamic disc, andthe dynamic scroll part and the static scroll part are meshed with each other and form a plurality of crescent cavities with volumes changed continuously from outside to inside; the air suction port communicates with the outside of the plurality of crescent cavities so as to guide natural air into the crescent cavities; and the air exhaust port communicates with the center of the plurality of crescent cavities so as to discharge the natural air which is extruded and heated by the volume change of the crescent cavities. According to the air-cooling oil-free scroll air compressor, the service life of the compressor can be prolonged.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to an air-cooled, oil-free scroll air compressor. Background technique [0002] The scroll air compressors known to those skilled in the art form a crescent cavity with a continuously changing volume from the outside to the inside through the full meshing movement of the moving disk and the static disk, so that the external compressible natural air It is inhaled from the outside through the suction port of the compressor, after being squeezed and boosted by the volume change of the crescent cavity, and heated up, it is finally discharged from the discharge port of the compressor. The exhausted gas is connected to the cooler through the passage system. Usually, a one-way valve is set in the passage system to prevent the natural air from returning and ensure the direct discharge of the natural air. [0003] However, heat and gas pressure changes will be generated during the fu...

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Problems solved by technology

[0003] However, heat and gas pressure changes will be generated during the full-mesh line meshing motion of the moving disk and the static disk. Under the action of thermal deformation and gas pressure, as well as errors in the processing of compressor components, the movement of the moving disk and the static disk will be caused. The phenomenon that the head of the scroll part breaks due to insufficient strength

[0004] In addition, since the check valves in the prior art are generally installed in the passage system, the natural air will still flow back into the compressor from the exhaust port of the compressor, which will have a certain impact on the working efficiency of the compressor.

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