Inner gearing dual rotors screw pump

A technology of internal meshing and internal rotor, applied in the direction of rotary piston pumps, pumps, rotary piston machines, etc., can solve the problems of large fit interference, low mechanical efficiency, large movement resistance, etc., and achieve reasonable sealing structure and smooth operation Smooth, structurally simple effect

Inactive Publication Date: 2004-03-10
慕承武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The existing screw pump only rotates the screw rotor, and the stator meshing with it does not rotate, and the fit interference is large, resulting in large movement resistance and low mechanical efficiency
[0004] 2. Due to the swing of the rotor, a universal transmission device and a balance bar mechanism must be added to make the mechanism complicated; the axial seal is difficult to guarantee, and there are many mechanical failures, so that the trouble-free operation period is short
[0005] 3. The gap between the rotor and the stator is often damaged, which makes its operating life short

Method used

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  • Inner gearing dual rotors screw pump
  • Inner gearing dual rotors screw pump
  • Inner gearing dual rotors screw pump

Examples

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example 1

[0022] Example 1: if figure 1 shown

[0023] In the internal meshing double rotor screw pump for ground infusion, the two ends of the inner rotor 28 are supported by two separate bearing seats 24 through the rotating shaft, the outer rotor 21 and the inner rotor 28 are internally meshed, and the outer circumference is embedded in the ends of the two bearing seats 24. The inner bearing 22 is a rotational fit. A gear 19 is arranged in the middle of the outer circumference of the outer rotor 21 , and the two bearing seats 24 are limited by the length of the outer rotor 21 . The overall structure of the internal meshing of the inner and outer rotors is embedded in the housing 3 provided with the outer rotor drive mechanism, so that the drive gear 11 of the outer rotor drive mechanism meshes with the transmission gear 19 set in the middle of the outer rotor, and the drive gear passes through the gear shaft 10. The provided belt pulley 7 is connected with the motor or directly con...

example 2

[0025] Example 2: if figure 2 shown

[0026] The inner rotor 8' of the inner meshing twin-rotor screw pump for submerged fluid is supported by two separate bearing seats 4' through the inner rotor shaft, and the outer rotor 9' and the inner rotor 8' are internally meshed, and the outer circumference is embedded in the inner rotor. The outer rotor bearings 12' inside the two housing ends of the rotor are rotationally fitted. The two bearing seats are limited by the length of the outer rotor 9', the overall structure of the inner and outer rotor meshing is embedded in the housing 19', the inner rotor bearing 3' is connected to the submersible motor through a coupling, and the submersible motor is passed through a cable Connect with the ground power control cabinet. The pumps can be connected in series into multiple stages, depending on the depth of the submerged liquid. Compared with the submersible centrifugal electric pump, the pump has the advantages of not being afraid o...

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Abstract

An internally-engaged dual-rotor screw pump for delivering liquid on the ground or underground immersible purpose is disclosed. Its external rotor is internally engaged with its internal rotor. If it is used for delivering liquid on the ground, its dual-rotor engaging structure is housed in a casing with external rotor driven mechanism. If it is used as underground immersible pump, said engaging structure is housed in a non-rotary casing.

Description

1. Technical field [0001] The invention relates to an internal meshing double-rotor screw pump for transporting liquid on the surface or submersible oil underground. 2. Background technology [0002] The present invention was invented by the applicant or the inventor himself and applied for a patent: the patent number of "staged screw pump" is ZL9320768.3, the patent number of "internal meshing double rotor screw pump" is ZL96247482.7 and the recently applied "external cavity pump" It is designed on the basis of the driven internal meshing double rotor ground screw pump". Due to the difficulty of processing and the unresolved key technology, it has not been promoted to the society. Therefore, the screw pumps currently used in society still have the following problems: [0003] 1. In the existing screw pump, only the screw rotor rotates, and the stator engaged with it does not rotate, and the fit interference is large, resulting in large movement resistance and low mechanic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/107
Inventor 慕承武张冰心慕宇光宋其国
Owner 慕承武
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