A performance testing device for rubber sealing ring
A rubber sealing ring and testing device technology, which is applied in the direction of fluid tightness testing, measuring devices, liquid tightness measurement using liquid/vacuum degree, etc., can solve the problems of high cost, rubber sealing ring structure, single size, test Problems such as complex device testing to achieve the effect of improving accuracy and solving complex structures
Active Publication Date: 2021-10-26
NORTHWESTERN POLYTECHNICAL UNIV +1
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Problems solved by technology
[0003] In the article "Research on the Prediction Method of Sealing Performance of Rubber Sealing Rings" published in Volume 63 of the "Rubber Industry" magazine in 2016 by Xu Zhiguo and others (pages 297-300), they proposed a rubber sealing ring compression performance test device. The test device can be used to study the relationship between the axial pressure, radial pressure and strain of the rubber sealing ring, but the test device is complex and expensive, and the structure and size of the rubber sealing ring are single, and it cannot simulate the real pressure of the sealing ring. surroundings
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[0019] This embodiment is a device for testing the performance of a rubber sealing ring.
[0020] refer to figure 1 , figure 2 , the rubber seal ring performance test device of this embodiment consists of foot nails 1, sealing cavity 2, support rod 3, transition ring 4, gland 6, force sensor 7, pressure head 8, top cover 9, top cover bolts 10, Stress rod 12, angle pointer 13, force sensor display instrument 14, O-ring 15, pressure gauge 17, adapter 16, valve 18, loading rod 11 and tested seal ring 5; The nail 1 and the support rod are fixed on the test table. The sealing chamber 2 and the gland 6 are connected by the flange at the upper end of the sealing chamber, and the flange at the upper end of the sealing chamber has a groove in the circumferential direction, and the sealing ring transition ring 4 is installed in the groove, and the rubber sealing ring to be tested is installed in the sealing ring transition ring , O-rings are installed on the side wall of the transit...
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The invention discloses a device for testing the performance of a rubber sealing ring; the sealing cavity is connected to the gland through a flange, a groove is made on the flange, and a sealing transition ring is installed in the groove; the transition ring shares the same sealing cavity, and the measurement Sealing rings with different structural parameters. A force sensor is installed at the center of the gland, the force sensor is connected to a display instrument, and the force sensor is in contact with the loading rod through the pressure head. Turning the loading lever clockwise forces it down on the sensor, causing the gland to move down. By determining the angle at which the loading rod threads are rotated, the distance the loading rod moves down can be determined. During the measurement process, the performance test of rubber sealing rings with different structures and different sizes can be realized on the same test bench by replacing transition rings of different sizes. By pressurizing the sealing cavity, the rubber sealing ring static support reaction force test, static contact width test and air pressure test can be carried out. It can simulate the real use environment of the sealing ring and improve the accuracy of the test results.
Description
technical field [0001] The invention relates to a test device, in particular to a performance test device for rubber sealing rings. Background technique [0002] Rubber sealing rings are widely used in the sealing of internal combustion engines, automobiles, construction machinery, machine tools and various hydraulic and pneumatic components due to their advantages of low cost, simple structure and convenient installation and use. Very strong, with good dimensional stability and the ability to retain elasticity for long periods of time under normal conditions of use. In the sealing of mechanical products, O-shaped rubber sealing rings account for more than 50%. As the automotive industry, aerospace, military industry, and oil exploration industries have higher and higher requirements for sealing, environmental pollution, casualties, and waste of resources that may be caused by sealing failures have attracted more and more attention. Elastomer seals rely on the elasticity a...
Claims
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IPC IPC(8): G01M3/28
CPCG01M3/2815
Inventor 张成成马震
Owner NORTHWESTERN POLYTECHNICAL UNIV