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Ultrahigh pressure hydraulic seal test device and method

A technology of hydraulic sealing and testing device, which is applied in the direction of using liquid/vacuum degree for liquid tightness measurement and measuring the acceleration and deceleration rate of fluid, etc. Convenience, wide availability, reliable effect

Pending Publication Date: 2019-01-04
徐州市全球通精密钢管有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no effective means for the detection of newly developed sealing components. Most of them use general-purpose friction and wear testing machines to conduct tribological tests on sealing materials. The test parameters are very different from the actual working conditions and environments of the seals. The obtained data are only It can provide a reference; although a sealing test device specially designed for the working conditions of hydraulic cylinders has been developed, the operating pressure is relatively low, which can only meet the sealing test requirements of general hydraulic systems, and it is impossible to test the ultra-high pressure with operating pressures as high as hundreds of MPa. Sealed for performance testing

Method used

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  • Ultrahigh pressure hydraulic seal test device and method

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Embodiment Construction

[0027] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0028] The ultra-high pressure hydraulic seal test device of the present invention mainly consists of an overpressure cylinder 12, a loading cylinder, a pressurized loading system and a dragging drive system; the two loading cylinders are respectively fixed on the two ends of the overpressure cylinder 12, One of the two loading cylinders is provided with a sensing device 4 for detecting the operating position of the piston. The pressurized loading system and the dragging drive system are respectively connected with two loading cylinders;

[0029] An axial through hole is processed on the overpressure cylinder 12, and the through hole is composed of 5 sections of holes with different diameters, and the hole in the middle part has a diameter of D 1 There are radial oil leakage holes on the lower wall of the holes at both ends, and there are holes on the inne...

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Abstract

The present invention provides an ultrahigh pressure hydraulic seal test device and method. The test device comprises an overpressure barrel, loading cylinders, a pressurizing loading system and a twin trawling drive system. There are two loading cylinders respectively fixed at two ends of the overpressure barrel, and the pressurizing loading system and the twin trawling drive system are respectively connected with the two loading cylinders; two tested seal pieces are respectively installed in two ring grooves of an axial through hole of the overpressure barrel, the two loading cylinders are fixed at two ends of the overpressure barrel, each hydraulic component is connected by employing an oil pipe, left and right plugs are screwed out, a taper valve element is taken down, hydraulic oil isfilled into a hole at the middle portion of the overpressure barrel through a radial hole at the left plug to allow the pistons of the two loading cylinders to retreated to the bottom portion, and the taper valve elements and the left and right plugs are reinstalled. Through adoption of the overpressure and twin trawling drive principles, the detection of the seal performance in a usage conditionof the ultrahigh pressure can be achieved, the energy saving effect is good, the test condition is good in control and regulation, the usage is reliable, and the static and dynamic seal performancesof the tested seal can be detected at the same time.

Description

technical field [0001] The invention relates to a hydraulic seal test device and a test method, in particular to an ultra-high pressure hydraulic seal test device and a test method suitable for hydraulic seal test with a working pressure as high as hundreds of MPa. Background technique [0002] Sealing is an essential means to prevent leakage in fluid transmission systems. The sealing effect and wear resistance of seals will greatly affect the reliability of related equipment, especially the use of ultra-high pressure seals with pressures up to hundreds of MPa. The impact on sex and safety of use is even greater. At present, there is no effective means for the detection of newly developed sealing components. Most of them use general-purpose friction and wear testing machines to conduct tribological tests on sealing materials. The test parameters are very different from the actual working conditions and environments of the seals. The obtained data are only It can provide a r...

Claims

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Application Information

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IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 范天锦王书婧孙兆松陈社会闫震于萍
Owner 徐州市全球通精密钢管有限公司
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