Automatic simulation impact force determination device for high-pressure water jet punching

A high-pressure water jet, measuring device technology, applied in the direction of using repetitive force/pulse force to test the strength of materials, etc., can solve the problem of low degree of automation and achieve the effect of automation

Inactive Publication Date: 2015-12-30
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

The devices of the existing invention generally have less consideration for the pressure of the surrounding rock, and cannot measure the impact force of the high-pressure water jet and the development of the cracks of the test piece under the action of the confining pressure, and the degree of automation is low
And the problem of h

Method used

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  • Automatic simulation impact force determination device for high-pressure water jet punching
  • Automatic simulation impact force determination device for high-pressure water jet punching
  • Automatic simulation impact force determination device for high-pressure water jet punching

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[0014] The present invention will be described in detail below in conjunction with the drawings and embodiments:

[0015] A high-pressure water jet punching automatic simulation impact force measuring device, see attached Figure 1-5 , Consists of integral fixing device 1, steel sleeve 2, independent water pressure capsule 3, cushion rubber pad 4, protective cover 5, two-way motor 6, pressure gauge 7, manual hydraulic pump 8, pressure sensor 9, chain 10, chain fixed part 11. Pressure sensor groove 12, motor base 13, chain pulley 14, chain gear 15, buffer rubber pad groove 16, independent water pressure capsule groove 17. It is a device for directly measuring the impact force of the high-pressure water jet, and measuring the impact force and destructive ability of the simulated water jet under different confining pressures and different impact angles. This device is different from the existing water jet impact force measuring device, especially for measuring the impact pressure o...

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Abstract

The invention provides an automatic simulation impact force determination device for high-pressure water jet punching. The automatic simulation impact force determination device comprises a fixed device, a pressure determination and confining pressure simulation device and an automatic lifting device. The automatic simulation impact force determination device is suitable for carrying out test determination on punching pressure, punching flows and test piece damage degrees by different coals under different confining pressures and different punching angles. Evidences are provided for selecting outburst-prevention pressure flows of underground high-pressure water punching. The device has a simple structure, and the automation of height adjustment is realized; the confining pressure is relatively convenient to adjust; and data acquisition, recording and processing are relatively intelligent. The device is convenient to fix, mount and debug, and has low requirements on operators.

Description

technical field [0001] The invention relates to an automatic simulated impact force measuring device for high-pressure water jet punching, in particular to a device for measuring the impact force of high-pressure water and the development of cracks in a test piece under different surrounding rock pressures by simulating the test piece. Background technique [0002] At present, the technology of high-pressure water jet punching has become an important means of coal mine outburst prevention. However, under different coal quality and different surrounding rock pressure, the required punching pressure, angle and flow rate are different. The devices of the existing invention generally have less consideration for the surrounding rock pressure, and cannot measure the impact force of the high-pressure water jet and the crack development of the test piece under the confining pressure, and the degree of automation is low. And the problem of high-pressure water splashing is less consi...

Claims

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Application Information

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IPC IPC(8): G01N3/36
Inventor 张嘉勇陈建崔啸许慎郭立稳
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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