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Screw rod line of novel screw air compressor

A screw profile and air compressor technology, applied in the direction of rotary piston machinery, mechanical equipment, machine/engine, etc., can solve the problems of small displacement, low output pressure and low efficiency of the twin-screw air compressor. , to achieve the effect of low noise, increased specific power and stable operation

Inactive Publication Date: 2008-03-12
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the large number of heads and complex curves, the processing is complicated and the processing volume is large, and the displacement of all existing twin-screw air compressors is not large. Although it can transmit air continuously, the flow pulsation is small, and the final output pressure is low. The specific flow rate is small, and the efficiency of the whole machine is low

Method used

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  • Screw rod line of novel screw air compressor
  • Screw rod line of novel screw air compressor

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0015] The screw air compressor of the present invention includes two screws, one of which is a double-start screw, and the other screw is a six-start screw.

[0016] Fig. 1 shows the shape of the radial cross-section of the hexagonal screw of the present invention, the tooth profile of each screw of the hexagonal screw is the same, and is evenly distributed along the circumference, one of which is composed of a radial straight line ab, a generalized cycloid bc, and an arc line cd and addendum arc line de are sequentially connected; among them, addendum arc line de is based on o 1 is the arc with the center of the circle, the arc line cd is the arc with the point p as the center, and its radius is three-quarters of the sum of the radius of the addendum circle of the six-headed screw and the radius of the root circle of the double-ended screw, point p in line o 1 On the exte...

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Abstract

The invention discloses a novel screw shape curve for screw-type air compressors. Tooth shape of one screw is a dual-threaded screw, and that of the other screw is a six-threaded female screw; seam curve in a dual-screw air compressor is rather short with perfect air tightness; output flow rate and output pressure are doubled to guarantee high efficiency and low noise; the screw curve is simple, so as to ensure simple machining and low manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of design and processing of mechanical parts, in particular to a screw profile of a novel screw air compressor. Background technique [0002] All existing twin-screw air compressors are multi-headed and have complex tooth shapes. For example, some have four teeth to six teeth, and some have five teeth to six teeth. Each tooth is composed of up to seven curves, such as the GHH-shaped line in Germany and the Fusheng-shaped line in Taiwan. Due to the large number of heads and complex curves, the processing is complicated and the processing volume is large, and the displacement of all existing twin-screw air compressors is not large. Although it can transmit air continuously, the flow pulsation is small, and the final output pressure is low. The specific flow rate is small, and the efficiency of the whole machine is low. [0003] Compared with the above-mentioned various tooth shapes, the specific flow rate a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/16
Inventor 陈行
Owner ZHEJIANG UNIV