Method for stabilizing flow pulsation of gear pump driven by non-circular gear at variable speed and gear pump

A non-circular gear and flow pulsation technology, applied in the field of fluid transmission, can solve the problems of inadaptation, dependence, high equipment cost, etc., and achieve the effect of remarkable effect, smooth pulsation, and simple structure

Active Publication Date: 2021-11-02
YANSHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technology relies heavily on servo sensing systems and motion control algorithms, and the cost of equipment is high, so it is not suitable for harsh working conditions

Method used

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  • Method for stabilizing flow pulsation of gear pump driven by non-circular gear at variable speed and gear pump
  • Method for stabilizing flow pulsation of gear pump driven by non-circular gear at variable speed and gear pump
  • Method for stabilizing flow pulsation of gear pump driven by non-circular gear at variable speed and gear pump

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Embodiment Construction

[0042] Exemplary embodiments, features, and aspects of the present invention will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0043] The specific structure of the low pulsation gear pump is as follows: figure 1Shown, comprise motor 16, speed changer and gear pump, wherein gear pump is made up of gear pump driving rotor 5, gear pump driven rotor 6, gear pump driving shaft 10, gear pump driven shaft 11 and gear pump body 15, in The pump body is equipped with a gear pump driving shaft and a gear pump driven shaft. The gear pump driving rotor and the gear pump driven rotor are placed in the pump body and mesh with each other. The driving gear pump rotor is set on the gear pump driving shaft, and the gear pump drive...

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Abstract

The invention provides a method for stabilizing the flow pulsation of a gear pump driven by a non-circular gear at variable speed and the gear pump, and belongs to the field of fluid transmission. Aiming at solving the problem that the flow pulsation of an existing gear pump is large, the invention provides the gear pump capable of greatly reducing the flow pulsation of the gear pump. The low-pulsation gear pump comprises a motor, a gear pump and a gear box, wherein the gear pump mainly comprises a pair of involute circular gears; the gear box mainly comprises a pair of non-circular gears and a pair of reduction gears; an input shaft of the gear box is connected with the motor through a coupler; and an output shaft of the gear box is connected with a driving shaft of the gear pump through a coupler. According to the low-pulsation gear pump provided by the invention, on the premise that an existing gear pump structure is not changed, the flow pulsation of the gear pump is effectively restrained through variable-speed driving of the two-stage gear box containing the non-circular gears, and the low-pulsation gear pump has the advantages of being small in pulsation, low in cost, high in reliability, simple in structure, convenient to maintain and the like.

Description

technical field [0001] The invention belongs to the field of fluid transmission, and in particular relates to a method for smoothing the flow pulsation of a gear pump driven by a non-circular gear variable speed 1 and a low-pulsation gear pump. Background technique [0002] Gear pump is one of the most important power devices today, which can continuously provide media with different flow rates and pressures. Compared with other types of oil pumps, gear pumps have the characteristics of simple structure, good self-priming performance, wide speed range, strong anti-pollution ability, and high reliability. Therefore, the design and performance analysis of high-performance gear pumps have always been the focus of attention. The flow pulsation coefficient of the pump is a key index to measure the performance of the pump. The gear pump has periodic flow pulsation due to its structure, and the periodic flow pulsation brings vibration and noise, which seriously affects the perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/18F04C14/28F04C15/00
CPCF04C2/18F04C15/00F04C14/28F04C15/0061
Inventor 刘大伟谭万鑫张晋铭
Owner YANSHAN UNIV
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