An oil-free scroll air compressor

An air compressor and scroll technology, which is applied in the field of oil-free scroll air compressors, can solve the problems of low oil content compressed air, high cost, complex design of oil-injected air scroll compressor systems, and environmental damage to lubricating oil, etc., to achieve Reduce production cost, convenient and fast installation, and stable rotation performance

CN105041646BActive Publication Date: 2018-05-15GUANGZHOU GUANGWO COMPRESSOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-05-15

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Abstract

The invention relates to an oil-free scroll air compressor, comprising a fixed scroll, a movable scroll, a crankshaft, a frame, a main balance weight, a pulley, an air suction port and an exhaust port, and the movable scroll It meshes with the fixed scroll to form an air compression chamber; the crankshaft is installed in the frame with the main bearing and the auxiliary bearing, and a ball disc structure is arranged between the movable scroll and the frame. The ball disc structure includes a mounting On a fixed seat of the frame, a radial bearing and a thrust bearing are arranged on the fixed seat, and the fixed seat is provided with a mounting hole, and the radial bearing is fixed in the mounting hole and installed on the eccentric shaft at one end of the crankshaft; The thrust bearing is fixed on one side of the fixed seat and is closely attached to the side of the frame; the radial bearing and the thrust bearing are concentric shafts, and the thrust bearing ring is set outside the radial bearing, so that the movable scroll and the static scroll During relative rotation, the movable scroll drives eccentric rotation through the radial bearing on the eccentric shaft, and is positioned and rotated through the thrust bearing, so that a good phase difference is maintained between the movable scroll and the fixed scroll. The invention has the characteristics of simple structure, low cost, stable rotation performance and the like.
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Description

technical field

[0001] The invention relates to an air compressor, in particular to an oil-free scroll air compressor. Background technique

[0002] Scroll air compressors are widely used in industrial, agricultural, transportation and other industries where compressed air is needed due to their high efficiency, low noise, small size, and benefits for energy saving and environmental protection. The main running part of the scroll air compressor is meshed with the scroll, which does not cause wear and tear, so the service life is longer than that of the piston and screw compressors, and it is an ideal power source for pneumatic machinery. In the scroll air compressor, the scroll of the main moving parts is divided into a moving scroll and a fixed scroll, and the moving scroll and the fixed scroll are equipped with scroll plates. The rotary disks are combined with each other to form a compression chamber. When the movable scroll is driven by the crankshaft to move along a cer...

Examples

Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawing.

[0025] refer to Figure 1 to Figure 5 The shown oil-free scroll air compressor includes a fixed scroll 1, a moving scroll 2, a crankshaft 4, a frame 5, a main balance weight 6, a pulley 9, an air suction port and an exhaust port. The above-mentioned moving scroll 2 and fixed scroll 1 mesh to form a compression chamber of air; There is a ball disc structure 3, the ball disc structure 3 includes a fixed seat 31 installed on the frame 5, the fixed seat 31 is provided with a radial bearing 32 and a thrust bearing 33, the fixed seat 31 is provided with a mounting hole 312, the radial bearing 32 is fixed in the installation hole 312, and is installed on the eccentric shaft 34 at one end of the crankshaft 4; the thrust bearing 33 is fixed on the side of the fixed seat 31, and is close to the side of the frame 5; The radial bearing 32 and the thrust bearing 33 are concentric shaf...