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A vibration testing system and method for a cone valve spool

A technology of vibration testing and spool, applied in mechanical valve testing, testing of mechanical components, testing of machine/structural components, etc., can solve the problem of deteriorating hydraulic system working conditions, restricting the application of poppet valves, and instability of decompression poppet valves and other problems, to achieve the effect of simple structure, low cost and good reliability

Active Publication Date: 2019-03-26
CHINA UNIV OF MINING & TECH
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the decompression cone valve often becomes unstable and vibrates during work, and produces cavitation cavitation and high-frequency noise, which consumes hydraulic energy and deteriorates the working condition of the hydraulic system, which limits the application of the cone valve. It is of great significance to study the vibration of cone valve

Method used

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  • A vibration testing system and method for a cone valve spool
  • A vibration testing system and method for a cone valve spool
  • A vibration testing system and method for a cone valve spool

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with specific embodiments.

[0024] like figure 1 , figure 2 , image 3 , Figure 4 As shown, the pressure reducing valve is taken as an example below. A pressure reducing valve spool vibration test system includes a sensor installation device, a spool opening control device, a spool to be tested, a valve body 8, an eddy current sensor 2 and an upper Metal reinforcement plate 5.

[0025] The sensor mounting device includes a sensor bracket 3, a sensor bracket fixing screw 4 and a sensor fixing nut 1, the sensor bracket 3 is fixed on the upper metal reinforcement plate 5 by the sensor bracket fixing screw 4, and the upper metal reinforcement plate 5 is fixed on the valve body 8 Above, the sensor fixing nut 1 fixes the eddy current sensor 2 on the sensor bracket 3 .

[0026] Described spool opening control device comprises fine-tuning handwheel 9, gear shaft 11, bearing block 13, high-speed pinio...

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Abstract

The invention discloses a vibration testing system and method for a cone valve element. The system comprises a sensor mounting device, a valve element opening degree control device, a to-be-tested valve element, a valve body, eddy current transducers and an upper metal reinforcing plate. The sensor mounting device consists of a sensor bracket, sensor bracket fixed bolts and sensor fixed nuts; the sensor bracket is fixed on the upper metal reinforcing plate by the sensor bracket fixed bolts; the upper metal reinforcing plate is fixed on the valve body; and the eddy current transducers are fixed on the sensor bracket by the sensor fixed nuts. The valve element opening degree of a reducing valve is controlled by using the method; the operation become simple and convenient; the precision is high; the cost is low; and reliability is high. The sensors are arranged in three directions and can capture vibration data of the valve element. The valve element vibration measurement by the eddy current transducers is a non-contact measuring way without being affected by impurities like greasy dirt. Moreover, the long-term work reliability, the resolution, the linearity, and the frequency response are high; the anti-interference capability is high; and the structure is simple.

Description

technical field [0001] The invention relates to a vibration testing system and method for a poppet valve core. Background technique [0002] Under the background of my country's rapid economic development, the upgrading of heavy industries such as equipment manufacturing has been driven, and hydraulic transmission technology has played an increasingly important role in many industrial application fields, such as aircraft engine fuel injection systems, advanced machine tools, heavy construction machinery, Chemical machinery, shipbuilding industry, etc. will have more and more demand for supporting products of hydraulic systems. The control of flow, pressure and flow direction in the hydraulic system is realized by the hydraulic control valve, and its performance directly affects the working state of the entire hydraulic system. The vibration, noise and cavitation problems of hydraulic control valves have posed a huge challenge to its own development. More and more scholars an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/003G01H11/02
CPCG01H11/02G01M13/00
Inventor 李贝贝刘秀梅孙福华徐化文李怀义
Owner CHINA UNIV OF MINING & TECH
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