Unequal-tooth-number screw profile for high-flow high-pressure three-screw pump

A three-screw pump, high-flow technology, applied to the components of the pumping device for elastic fluid, rotary piston type/swing piston type pump components, pumps, etc., can solve the problems of low output pressure and small specific flow, etc. , to achieve the effect of increased output pressure, short sealing line and stable operation

Inactive Publication Date: 2006-03-08
陈行 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the output pressure of the traditional thre

Method used

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  • Unequal-tooth-number screw profile for high-flow high-pressure three-screw pump
  • Unequal-tooth-number screw profile for high-flow high-pressure three-screw pump
  • Unequal-tooth-number screw profile for high-flow high-pressure three-screw pump

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0014] The screw pump of the present invention comprises three screws, two of which are double-start screws, and the other screw is a six-start screw.

[0015] figure 1 Shows the shape of the radial cross-section of the six-head screw of the present invention. Each screw of the six-head screw has the same tooth shape and is evenly distributed along the circumference. One of the six-head screws is composed of a radial straight line ab, a generalized cycloid bc, and a dedendum arc Line cd, generalized cycloid de, radial straight line segment ef and addendum arc line fg are sequentially connected. Among them, the addendum arc line fg and the dedendum arc line cd are based on o 1 The arc of the center of the circle; the radius and radian of the root arc cd can be adjusted, the length of the radial straight line ab and ef can be adjusted, and ab and ef can also be arcs, cycloids...

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Abstract

This invention discloses screw tooth shape with unequal tooth number for high flow high pressure triangle screw pump, which contains double-thread male screw slave screw and six-thread female screw active screw. Said invention has shorter seal line, fine seal property, multiple increased output flow and pressure.

Description

technical field [0001] The invention relates to the technical field of design and processing of mechanical parts, in particular, to a screw tooth shape of a high-flow high-pressure three-screw pump with unequal number of teeth. Background technique [0002] For hundreds of years, the tooth shape of the three-screw pump screw, whether it is the driving screw or the driven screw, is composed of cycloids, and they are all double-ended screws. The driven screw is thin and long, with extremely poor rigidity and pressure stability problems. Therefore, the output pressure of the traditional three-screw pump is low and the specific flow rate is small. [0003] Compared with the various tooth shapes mentioned above, the tooth shape of the present invention doubles the specific flow rate and output pressure, and the processing is still more convenient. Contents of the invention [0004] The purpose of the present invention is to provide a screw tooth profile of a high-flow high-pr...

Claims

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Application Information

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IPC IPC(8): F04C29/00F04C2/16F04C18/16
Inventor 陈行陈光亮
Owner 陈行
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