Screw ball pump

A ball and screw technology, applied in the direction of rotary piston pumps, pumps, pump components, etc., can solve the problems of complex processing technology, fast stator wear, high manufacturing cost, etc., and achieve the effect of strong transmission capacity, small fluctuation, and small wear

Inactive Publication Date: 2015-11-18
魏江坤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high friction between the stator and rotor, the stator wears out quickly, resulting in a short life of the pump
Moreover, the processing technology of the rotor and the stator is complicated, and the processing requires special equipment, and the manufacturing cost is high

Method used

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Examples

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0023] Such as Figure 1 to Figure 5 As shown, a helical ball pump includes a stator 2 and a rotor 3. The stator 2 is provided with a rotor accommodation cavity 21, and the rotor 3 is provided with a helical guide groove 31. The helical guide groove 31 is an arc-shaped tooth shape with a fixed pitch. Both ends of the stator 2 and the rotor 3 are respectively provided with a first end cover 5 and a second end cover 1 , and the first end cover 5 and the second end cover 1 support the rotor 3 through a bearing 11 .

[0024] In this embodiment, the spiral guide groove 31 is an arc-shaped tooth with a fixed pitch. In other embodiments, the pitch of the spiral guide groove 31 is variable, or the tooth shape is non-arc, which can achieve the same technical effect. .

[0025] In this embodiment, the stator 2 is provided with a first ball accommodation chamber 8 con...

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PUM

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Abstract

The invention discloses a screw ball pump, which comprises a stator, a rotor, a feed port and a discharge port, wherein a rotor accommodation cavity is formed in the stator; a first end cover and a second end cover are arranged at the two ends of the stator and the rotor respectively, and support the rotor through bearings; a spiral guide groove is formed in the rotor; a first ball accommodation cavity connected with the rotor accommodation cavity is formed in the stator; the stator is provided with an independent second ball accommodation cavity beside the first ball accommodation cavity; the first and second end covers are provided with first and second transition connection cavities communicated with the first and second ball accommodation cavities; the spiral guide groove is provided with balls in the first ball accommodation cavity, the second ball accommodation cavity, the first transition connection cavity and the second transition connection cavity. Each part of the screw ball pump is easy to machine and long in service life, waves of discharged fluid are smaller, and transmittability is high.

Description

technical field [0001] The invention relates to a pump, in particular to a screw ball pump. Background technique [0002] The screw pump is a positive displacement rotor pump, which relies on the volume change of the sealed cavity formed by the screw and the bushing to suck and discharge liquid. However, due to the high friction between the stator and rotor, the stator wears out quickly, resulting in a short life of the pump. Moreover, the processing technology of the rotor and the stator is complicated, and special equipment is required for processing, and the manufacturing cost is high. [0003] Therefore those skilled in the art are devoting themselves to developing a long service life screw ball pump. Contents of the invention [0004] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a screw ball pump with long service life. [0005] In order to achieve the above object, the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/10F04C15/00
Inventor 魏江坤
Owner 魏江坤
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