Tandem type low impulse internally engaged gear pump with malposition angle

An internal meshing gear pump, series technology, applied in the direction of rotary piston pumps, rotary piston/swing piston pump components, pumps, etc., can solve the problem of reducing the flow pulsation at the outlet of the internal meshing gear pump, to reduce the flow rate pulsating effect

Inactive Publication Date: 2018-04-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the inadequacies of current methods for reducing the outlet flow pulsation of internal gear pumps, the purpose of the present invention is to provide a serial low-pulsation internal gear pump with misalignment angle, which can greatly reduce the outlet flow pulsation of internal gear pumps

Method used

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  • Tandem type low impulse internally engaged gear pump with malposition angle
  • Tandem type low impulse internally engaged gear pump with malposition angle
  • Tandem type low impulse internally engaged gear pump with malposition angle

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, the present invention includes a crescent block 1, a drive gear shaft 2, a shaft seal 3, a front cover 4, a front bearing disc 5, a housing 6, a front ring gear 7, a rear bearing disc 8, a sliding bearing 9, a coupling body 10, Spline coupling 11, linkage gear shaft 12, rear ring gear 13, rear cover 14 and bolt assembly 15.

[0026] The front gear box and the rear gear box have the same structure, and both include a front bearing disc 5, a housing 6, and a rear bearing disc 8. The front bearing disc 5 and the rear bearing disc 8 are respectively placed on the front and rear sides of the housing 6, and the front cover 4. The coupling body 10 , the rear cover 14 , and the front bearing disc 5 , the casing 6 , and the rear bearing disc 8 of the front and rear gear boxes are connected and installed together through bolt assemblies 15 .

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Abstract

The invention discloses a tandem type low impulse internally engaged gear pump with a malposition angle. A front gear box is connected and mounted between a front cover and a connection body, a rear gear box is connected and mounted between a rear cover and the connection body, and the front gear box and the rear gear box are of a same structure, and each comprises a front bearing disc, a shell and a rear bearing disc. A driving gear shaft is coaxially connected with a linkage gear shaft, power is input into the driving gear shaft, and the driving gear shaft drives the linkage gear shaft to conduct torque transmission. The driving gear shaft and the linkage gear shaft are both of a stepped shaft structure which is mainly composed of a front shaft section, a rear shaft section and a gear section. The gear sections of the driving gear shaft and the linkage gear shaft are mounted in the front gear box and the rear gear box correspondingly in a sleeving mode, and the gear sections of the driving gear shaft and the linkage gear shaft are mounted in the gear boxes through crescent gear ring assemblies. The tandem type low impulse internally engaged gear pump can make the flow impulse atan outlet decrease by more than 65%, and the purpose that the flow impulse at the outlet of the gear pump is reduced is achieved.

Description

technical field [0001] The invention relates to an internal meshing gear pump, in particular to a serial low-pulsation internal meshing gear pump with misalignment angle. Background technique [0002] Internal gear pumps are widely used in injection molding machinery, marine machinery, and precision machine tools due to their compact structure, low noise level, and small outlet pressure pulsation. However, with the increasing proportion of "intelligent manufacturing" in traditional industries, the requirements for control precision of precision machine tools are getting higher and higher. Therefore, higher requirements are put forward for the outlet pulsation of internal gear pumps. It is required that the outlet flow of the internal gear pump is more stable and the pulsation value is smaller, so as to achieve higher precision control. [0003] At the same time, in hydraulic components, the noise is mainly divided into two parts: fluid noise and structure noise. The fluid ...

Claims

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Application Information

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IPC IPC(8): F04C2/10F04C15/00
CPCF04C2/101F04C15/00F04C15/0026F04C2270/145
Inventor 周华杜睿龙谢安桓
Owner ZHEJIANG UNIV
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