Plunger pump plunger pair oil film testing device, method and system

A technology of testing device and testing method, which is applied in the direction of pump testing, measuring device, testing of mechanical parts, etc., can solve problems such as insufficient accuracy, inability to accurately determine the specific shape of the oil film, and inability to ensure the installation accuracy of eddy current sensors, etc., to achieve Calibration error, effect of reducing measurement error

Active Publication Date: 2021-11-05
ZHEJIANG NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This test scheme has obvious shortcomings, for example, because the installation accuracy of the eddy current sensor cannot be guaranteed, the specific shape of the oil film cannot be accurately determined; only two points of data are used to determine the oil film shape of a surface, and the accuracy is not enough, etc.

Method used

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  • Plunger pump plunger pair oil film testing device, method and system
  • Plunger pump plunger pair oil film testing device, method and system
  • Plunger pump plunger pair oil film testing device, method and system

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] The purpose of the present invention is to provide a plunger pump plunger auxiliary oil film testing device, method and system, to overcome the problem that the installation accuracy of the eddy current sensor cannot be guaranteed in the prior art, resulting in the inability to accurately determine the specific shape of the oil film; and to overcome Only use the data of two points to determine the oil film shape of a surface, and the accuracy is not enou...

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Abstract

The invention discloses a plunger pump plunger pair oil film testing device, method and system. The device comprises three rotating mechanisms, three sensors and a plunger sleeve, wherein the plunger is sleeved with the plunger sleeve, one end of each sensor is connected with the plunger sleeve, and the other end of each sensor is connected with the corresponding rotating mechanism; and the rotating mechanism drives the sensor to move in the plunger sleeve in the radial direction. The position of the sensor can be electrically controlled, the form of the plunger can be accurately determined, the positioning stability of sensor installation can be achieved, the sensor installation error is calibrated, and then the measurement error is reduced.

Description

technical field [0001] The invention relates to the technical field of hydraulic testing, in particular to a plunger pump plunger auxiliary oil film testing device, method and system. Background technique [0002] Plunger pair, flow distribution pair, and slipper pair are the three important friction pairs in the plunger pump. They are the key components to realize the energy transmission function of the plunger pump and improve the energy efficiency of the hydraulic pump, and they are also the weak link that causes the failure of the hydraulic pump. The plunger pair is the most critical friction pair, but the conditions for forming the oil film are extremely harsh. Due to the external force, the plunger is in an eccentric state in the cylinder, which is prone to point contact. Therefore, theoretical and experimental studies are carried out on the characteristics of the plunger pair oil film. It is extremely necessary. At present, the oil film test of the hydraulic pump plun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00F04B51/00G01B21/04G01B21/28
CPCG01M13/00F04B51/00G01B21/04G01B21/28Y02E30/30
Inventor 王冬云张翔吴瀚洋
Owner ZHEJIANG NORMAL UNIVERSITY
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