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Internally tangent barrel-shaped four-rotor displacement pump

A four-rotor, positive displacement pump technology, applied in the field of positive displacement pumps, can solve the problems of small flow rate of conveying medium and limited working range, and achieve the effects of increasing contact area, low vibration and noise, and high rotational speed

Inactive Publication Date: 2015-01-14
HENAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The working characteristic is that it is sensitive to the viscosity change of the medium, the flow rate of the conveying medium is small, and the working range is limited

Method used

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  • Internally tangent barrel-shaped four-rotor displacement pump
  • Internally tangent barrel-shaped four-rotor displacement pump
  • Internally tangent barrel-shaped four-rotor displacement pump

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Effect test

Embodiment Construction

[0029] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] Figure 1 to Figure 12In the pump casing 5, there is an outer rotor connected to the inscribed bearing. The stator 20 inside the outer rotor has a stator partition 22, which divides the outer rotor into two parts: the left outer rotor 4 and the right outer rotor 10. , the left outer rotor 4 and the annular cavity formed between the stator 20 and the stator diaphragm 22 constitute the left outer rotor working chamber 23, while the right outer rotor 10 and the annular chamber formed between the stator 20 and the stator diaphragm 22 constitute the right The outer rotor working cavity 21 is provided with an inner gear on the inner cavity wall of the left outer rotor 4 and is evenly distributed with the first ridge 42 of the left outer rotor, the second ridge 48 of the left outer rotor and the third ridge 53 of the left outer rotor , the fi...

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Abstract

The invention relates to an internally tangent barrel-shaped four-rotor displacement pump. An outer rotor connected with a pump shell in a rotating mode is arranged in the pump shell; a stator and an inner rotor are arranged in the outer rotor; the inner rotor consists of upper, left and right rotors which are connected with the stator and are connected with the outer rotor in an internally tangent rotating mode; the three rotors and a main shaft which penetrates through the stator and is connected with left and right end covers connected through the pump shell through bearings are arranged in a planetary mode; the three rotors are connected with the main shaft in an externally tangent rotating mode; and a fluid inlet and outlet pipeline is arranged in the pump shell and comprises upper, left and right rotor fluid inlet and outlet pipelines communicated with pump shell inlet and outlet flow channels. The pump has the characteristics of high self-priming capability and bearing capability, high efficiency, low loss, high pressure, wide pressure range and flow range and wide conveyed liquid material type range and viscosity range, is insensitive to gas and dirt which enter the pump, avoids the trapping phenomenon, can be directly connected with a motor, is reliably and stably operated, is high in rotating speed and sealing performance and low in vibration and noise, is widely applied, and can convey various fluid media.

Description

technical field [0001] The invention relates to a displacement pump, in particular to an inscribed cylindrical four-rotor displacement pump. It is suitable for conveying various fluids. Background technique [0002] A pump is a general term for a general-purpose machine. It is controlled by a prime mover and drives the medium to move. It is an energy conversion device that converts the energy output by the prime mover into the pressure energy of the medium. Generally, there are many types of pumps used in conveying various fluids, and the gear pump is one of them. It belongs to the gear meshing mode of transportation, and it is composed of a pump casing and a gear transmission mechanism set inside it. Although this kind of pump is beneficial to reduce the friction loss of the mechanism, it has defects such as large flow and pressure pulsation, large vibration and noise, and invariable displacement. Moreover, due to the unbalanced radial force, the gears in the pump casing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/08
Inventor 童海滨秦明周王琳李国栋黄锦秀海骏娇王品
Owner HENAN UNIVERSITY
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