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Full-automatic rock point load test instrument

A point load, fully automatic technology, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problems of rock shot injury by testers, complex structure of measuring system equipment, and rock easily ejected under pressure. Reduce the labor intensity of the test, realize the automatic load parameter measurement, and reduce the manufacturing cost

Inactive Publication Date: 2015-07-22
NANHUA UNIV +2
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AI Technical Summary

Problems solved by technology

[0005] The XD-2 portable point load testing machine can quickly and accurately measure the load strength of the rock, and can digitally display its strength value; however, the shortcomings of this type of instrument are: (1) its loading device adopts manual Rocking a hydraulic oil pump requires a large amount of manpower when the test volume is large, and during the test process, the rock is easily ejected under pressure, and the test personnel are easily injured by the rock ejection; (2) the load measurement system needs to adopt DY -2000 type digital tester is an independent device, which needs to be assembled during the test. The structure of the measurement system equipment is relatively complicated, the cost is large, and the installation and disassembly are cumbersome

Method used

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  • Full-automatic rock point load test instrument
  • Full-automatic rock point load test instrument

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Embodiment Construction

[0024] Further illustrate the implementation of the present invention with reference to the accompanying drawings (as shown in Figure 1, figure 2 , image 3 , Figure 4 , Figure 5 shown):

[0025]A fully automatic rock point load tester, including a loading system and a measuring system, the loading system includes a hydraulic jack 1, a movable hydraulic loading cone 2, a fixed loading cone 3, an electrohydraulic device 4, a load support beam 6 and a load The bracket 7; the hydraulic cylinder of the hydraulic jack 1 communicates with the electrohydraulic device 4 through the pressure hydraulic pipe 9 and the pressure discharge hydraulic pipe 10; the movable hydraulic loading cone 2 is fixed above the piston of the hydraulic jack 1, and the fixed loading cone 3 is fixed On the load support beam 6, the movable hydraulic loading cone 2 and the fixed loading cone 3 have the same center line, and the load support beam 6 is fixedly installed on the load support 7; the elec...

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Abstract

The invention relates to an experimental device for testing the point load strength of rock, in particular to a full-automatic rock point load test instrument. The full-automatic rock point load test instrument comprises a hydraulic jack, a movable hydraulic loading cone, a fixed loading cone, an electric hydraulic device and a measurement system, wherein a hydraulic cylinder of the hydraulic jack is communicated with the electric hydraulic device through a pressurization hydraulic pipe and a pressure-discharge hydraulic pipe; the movable hydraulic loading cone is fixed above a piston of the hydraulic jack; the fixed loading cone is fixed on a cross beam of a load bracket; the measurement system comprises an automatic measurement device, a liquid flow sensor and a hydraulic sensor; the liquid flow sensor and the hydraulic sensor are mounted in the pressurization hydraulic pipe in sequence. The full-automatic rock point load test instrument is improved in efficiency and safety, and realizes full-automatic load parameter measurement.

Description

technical field [0001] The invention relates to an experimental device for measuring rock point load strength, in particular to an automatic rock point load tester. Background technique [0002] Point load test is a very important index for the research of rock mass classification (RMR, CSMR, etc.) and strength parameters in rock mass engineering. Rock stability analysis plays a very important role. At the same time, the point load test is not only simple and fast, it can carry out on-site testing of the original state, it has the advantages of less man-hours, low cost and convenience for a large number of tests. Characteristics of the test. [0003] The rock point load strength test method was recommended by the Test Method Committee of the International Society of Rock Mechanics in 1972, and was revised in 1985. The test is to place the rock specimen between two spherical conical pressure plates, apply a concentrated load to the specimen until it fails, and then obtain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12
Inventor 饶益花陈文光丁德馨胡南
Owner NANHUA UNIV
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