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Visualization research test bench and method of internal gear pump end face clearance flow field

A technology of internal meshing gear pump and end face clearance, which is applied in the direction of pump testing, measuring the increase and decrease rate of fluid, liquid variable capacity machinery, etc., and can solve the problem of no flow field visualization research.

Active Publication Date: 2020-06-26
ANHUI POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing research does not focus on the visualization of the flow field during the grease pumping process. The development of a special visualization test platform suitable for the internal gear pump to transport the grease medium is very important for revealing the end clearance leakage of the internal gear grease pump. Mechanism is important

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  • Visualization research test bench and method of internal gear pump end face clearance flow field
  • Visualization research test bench and method of internal gear pump end face clearance flow field
  • Visualization research test bench and method of internal gear pump end face clearance flow field

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Embodiment Construction

[0022] Through the description of the embodiments below, the specific implementation of the present invention includes the shape, structure, mutual position and connection relationship between the various parts, the function and working principle of each part, the manufacturing process and the operation and use method of the various components involved. etc., to make further detailed descriptions to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0023] Such as figure 1 As shown, the internal gear grease pump end surface clearance flow field visualization research test bench provided by the present invention includes: a grease supply unit, a grease collection unit, a test pump 6, a test and control unit, a speed regulation unit and a PIV test system.

[0024] The fat supply unit is composed of a first air compressor 1, a first one-way valve, a first cylinder 3,...

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Abstract

The invention discloses a visualization research test bed and method for a side clearance flow field of an internal gear pump, comprising a grease supply unit, a grease collecting unit, a speed regulating unit, a test and control unit and a PIV test unit, under the action of a laser source, a particle image of a side clearance flow field between a meshing gear and a side plate is acquired, image processing is formed, and further a velocity vector field is obtained. The test bed disclosed by the invention adopts a PIV technology and realizes visualization research on the side clearance gap flowfield of an internal gear lubricating grease pump, thereby having important significance on reveal of a side clearance leakage mechanism of the internal gear lubricating grease pump.

Description

technical field [0001] The invention relates to the technical field of pump flow field visualization research, in particular to a test bench and method for visualization research of the end surface clearance flow field of an internal gear lubricating grease pump. Background technique [0002] The internal gear pump is not sensitive to the viscosity of the medium, and has the advantages of high pumping pressure and low failure rate. As the core component (grease pump) of the grease supply system (centralized lubrication system), it is widely used to pump grease medium . The leakage of the internal gear pump includes: interdental leakage, radial clearance leakage and axial clearance leakage (ie end face leakage). Among them, the end face leakage is the main leakage form of the internal gear pump, and suppressing the end face leakage can effectively improve the volumetric efficiency of the pump. The end face clearance of the internal meshing gear pump is a pair of friction pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/26F04B51/00
CPCF04B51/00G01M3/26
Inventor 潘家保高洪齐国良王文昌王建平钱明唐铃凤
Owner ANHUI POLYTECHNIC UNIV
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