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Micro meshing clearance high-pressure screw pump

A screw pump, meshing technology, applied in the direction of pump, pump control, pump components, etc., can solve the problems of difficult manufacturing and limited design methods, and achieve the effect of ensuring the sealing performance of the end

Inactive Publication Date: 2017-05-10
GUANGDONG POLYTECHNIC NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of spiral surface design methods and the difficulty of manufacturing, it has become a bottleneck restricting the development of screw pumps, especially high-pressure screw pumps.

Method used

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  • Micro meshing clearance high-pressure screw pump
  • Micro meshing clearance high-pressure screw pump

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Embodiment Construction

[0014] The accompanying drawing is a micro meshing gap high pressure screw pump of the embodiment of the present invention. The invention adopts the method of optimizing the generatrix to form the micro-engagement clearance of the conjugated helical curved surface in the single-degree-of-freedom engagement movement, thereby improving the working pressure of the screw pump. The generatrix of the present invention is a combined space curve formed by arcs and transitional curves. While rotating around the axis of the screw at a constant speed, the bus moves at a constant speed along the axis of the screw to form a helical curved surface. The device of the present invention is made up of: 1 convex screw rod, 2 front bearings, 3 front end covers, 4 concave screw rod 1, 5 rear bearings, 6 rear end caps, 7 concave screw rod 2, 8 pump body, 9 oil ports. The convex screw 1 meshes with the two concave screws 4 and 7, the motor drives the convex screw 1 to rotate, and the convex screw 1 ...

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Abstract

The invention aims at providing a micro meshing clearance high-pressure screw pump. A busbar preference method is adopted for forming a micro meshing clearance of a conjugation spiral curved surface in the single-freedom-degree meshing movement, and the work pressure of the screw pump is improved. A busbar of a screw spiral curved surface is a combined space curve formed by an arc and a transition curve. The busbar moves along the axis of a screw at a constant speed while rotating around the axis of the screw at a constant speed to form the spiral curved surface. The micro meshing clearance high-pressure screw pump is composed of a convex screw, a front bearing, a front end cover, a first concave screw, a rear bearing, a rear end cover, a second concave screw, a pump body and an oil opening. The convex screw is engaged with the two concave screws, a motor drives the convex screw to rotate and drives the two concave screws to rotate, oil liquid is sucked in from an oil inlet, sealed and pressurized through a screw spiral groove and is then conveyed to an oil outlet to be pressed out.

Description

technical field [0001] In the technical fields of fluid transportation and hydraulic transmission, pump equipment is widely used in industrial and agricultural production, equipment manufacturing, sewage treatment and various aspects of social life. Among them, the application of positive displacement pumps accounts for more than 70%, and the screw pumps in positive displacement pumps are used more and more because of their good continuity, long life and high reliability. The invention relates to a high-pressure screw pump with micro meshing clearance. Background technique [0002] Pump equipment is widely used in various fields of industrial and agricultural production, equipment manufacturing, sewage treatment and social life, among which positive displacement pumps are mainly gear pumps, vane pumps, plunger pumps and screw pumps. Among the existing products, the outstanding advantages of the screw pump are good continuity, long life and high reliability. However, due to...

Claims

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Application Information

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IPC IPC(8): F04C2/16F04C15/00
CPCF04C2/165F04C2/084F04C2240/20F04C2250/20F04C2270/175
Inventor 屈圭
Owner GUANGDONG POLYTECHNIC NORMAL UNIV
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