Testing table and testing method for reciprocating-type piston rod sliding sealing performance testing

A technology of sliding seal and piston rod, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the rate of increase and deceleration of the fluid, can solve the problems of lack of performance test bench and so on, so as to increase reliability and credibility degree of effect

Inactive Publication Date: 2013-04-24
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no mature product on the market for the performance test test bench of the reciprocating piston rod sliding se

Method used

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  • Testing table and testing method for reciprocating-type piston rod sliding sealing performance testing
  • Testing table and testing method for reciprocating-type piston rod sliding sealing performance testing
  • Testing table and testing method for reciprocating-type piston rod sliding sealing performance testing

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Embodiment Construction

[0012] The present invention is a reciprocating piston rod sliding sealing performance testing test bench and testing method thereof, such as figure 1 , figure 2 , image 3 As shown, the test bench mainly includes a motor 45, a magnetic transmission coupling 1, a transmission shaft 2, a crankshaft linkage mechanism 5, a crankcase 4, a cylinder block 31, and a sliding sealing device 11. The motor 45 passes through the magnetic transmission coupling 1 Drive the transmission shaft 2 to drive the crank linkage mechanism 5, and then convert the linear reciprocating motion of the piston rod 10 through the sliding rod 35 and the guide sleeve 36 in the guiding mechanism. The first sliding sealing device 11a and the second sliding sealing device 11b adopt the up and down Symmetrically arranged and fitted on the piston rod 10, the connection joint surfaces of the sleeves 27 of the first sliding sealing device 11a and the second sliding sealing device 11b and the sealing member 26, th...

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Abstract

The invention discloses a testing table and a testing method for reciprocating-type piston rod sliding sealing performance testing. A motor of the testing table drives a crankshaft and connecting rod mechanism through a magnetic transmission coupler, and transforms into a straight line reciprocating motion through a slide bar and a guide sleeve of a guide mechanism. Two sets of sliding sealing devices are symmetrically arranged vertically. Gas flow meters are arranged on the outlets of a top cavity and a crankcase, and are connected on a monitor and a data collecting computer through interfaces. Lubricating devices of the sliding sealing devices are arranged inside corresponding positions of cylinders. The testing table and the testing method for reciprocating-type piston rod sliding sealing performance testing take Stirling engine sliding sealing devices as objects of study, can test gas sealing performance of the piston rod sliding sealing devices, test oil pumping abilities of the sliding sealing devices, and simultaneously realize comparisons of performance of the two sets of sliding sealing devices. The testing method is that if gas working mediums are filled from gas inlets or oil inlets, a state of a sealing performance test is formed; and if the gas working mediums are replaced by lubricating oils, a state of an oil pumping ability test is formed.

Description

technical field [0001] The invention relates to the field of sliding seal performance testing of reciprocating piston rods and magnetic transmission seals, in particular to a reciprocating sliding sealing performance test bench with a sliding sealing device actually used in a piston rod of a Stirling engine as a core component. Background technique [0002] The reciprocating sliding seal is the core component of the Stirling engine, and it is a typical sealing form of the reciprocating rod seal operating under high pressure, high temperature, high speed and other working conditions. The sealing performance and service life of the reciprocating sliding seal are the key factors affecting the efficiency of the engine. The problem of reciprocating sliding seal has always been the focus of people's research. However, due to the complexity of the reciprocating sliding seal, many studies are still lacking and have limitations to a certain extent, and many issues have not yet been ...

Claims

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Application Information

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IPC IPC(8): G01M3/26
Inventor 杨东亚龚俊宋孝宗余照明解欢
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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