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Testing experiment table for studying lip seal life

A technology for testing experiments and life, applied in the field of mechanical seals

Active Publication Date: 2013-11-27
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are very few invention patents at home and abroad dedicated to the study of lip seal life testing. Usually, bench experiments are used to study the influence of different parameters on seal leakage rate and friction torque, etc., which do not involve the study of seal life.

Method used

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  • Testing experiment table for studying lip seal life
  • Testing experiment table for studying lip seal life
  • Testing experiment table for studying lip seal life

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0021] Such as figure 1 As shown, the present invention is a test bench for studying the life of lip seals, including a first test lip seal 1, an oil chamber 2, a transparent glass cover plate 3, a slotted sleeve 4, a shaft sleeve 5, a second test lip Seal 6, AC motor 7, motor bottom plate 8 and T-slot platform 9. The AC motor 7 is connected to a frequency converter to realize stepless speed change from 0 to 6000rpm. It is fixed on the motor base plate 8 and installed on the T-slot platform 9 through bolt connection. The axle sleeve 5 is installed on the motor shaft of the AC motor 7, and is fixed by a round nut. The shaft sleeve 5 is sealed in the slotted sleeve 4 with the first test lip seal 1 and the second test lip seal 6 in the same direction. Two ends of the AC motor 7 are respectively provided with an output shaft, respectively connect...

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PUM

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Abstract

A testing experiment table for studying lip seal life comprises an oil chamber. A grooved sleeve with through grooves in the axial direction is arranged in the oil chamber, the two ends of the inner portion of the grooved sleeve are respectively provided with a first testing lip seal and a second testing lip seal, the first testing lip seals and the second testing lip seals are installed on shaft sleeves in a homodromous mode, the shaft sleeves are sealed in the grooved sleeve, the shaft sleeves are installed on a motor shaft of an alternating current motor, the two ends of the alternating current motor are respectively provided with an output shaft, the output shafts are connected to the two shaft sleeves respectively, and performance test of four lip seals can be achieved simultaneously. The testing experiment table achieves test of the service life of sealing rings, is convenient to assemble and disassemble, can obtain a reverse pumping rate change rule, can obtain a borne friction torque change rule through a current method, and can achieve test of the sealing rings of different diameters through changing of the shaft sleeves.

Description

technical field [0001] The invention belongs to the technical field of mechanical seals, in particular to a test bench for studying the service life of lip seals. Background technique [0002] Sealing is an important enabling technology in modern mechanical engineering. Seal leakage will not only greatly increase system maintenance costs and pollute the environment, but also lead to fatal disasters such as the launch explosion of the American Challenger space shuttle; A lot of energy wasted. According to statistics in the petrochemical field, 60% of unplanned shutdowns are caused by sealing failures. The high incidence of sealing accidents has caused huge economic losses, and has seriously restricted the realization of the design life of the service mechanical system. [0003] Rotary shaft lip seal (referred to as lip seal) has become one of the most commonly used and most important seals because of its simple structure, compactness, reliable performance, "zero leakage" in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
Inventor 郭飞黄乐贾晓红高志索双富王玉明
Owner TSINGHUA UNIV