Triaxial rheological tester
A triaxial rheological and testing machine technology, applied in the direction of applying stable tension/pressure to test the strength of materials, can solve the problems of narrow rock force range, rock pressure fluctuation and high cost, and achieve accurate detection, convenient adjustment, The effect of convenient processing
Inactive Publication Date: 2014-12-10
ANHUI UNIV OF SCI & TECH
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Problems solved by technology
However, this kind of uniaxial rheological testing machine has the following disadvantages: it can only perform uniaxial pressure measurement, the range of rock force to be measured is narrow, and the accuracy of the measurement results is low; it is easy to stop the test due to power failure when the servo motor is used as power. ;Using a servo motor as power has fluctuations in the pressure on the rock, which cannot be kept constant, so the measured test data is inaccurate; using a servo motor as power is costly
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[0022] Such as Figure 1 to Figure 3 As shown, the three-axis rheological testing machine of the present invention includes a frame 1. The frame 1 is used to place the main hydraulic cylinder 2 and the first hydraulic cylinder 4, the second hydraulic cylinder 5 and the third hydraulic cylinder 6 respectively connected with the oil pump 3 and the pipes and oil pipes connected to each other. . The main hydraulic cylinder 2 includes a main cylinder body 7 and two master cylinder pistons 8 mounted on the left and right sides of the main cylinder body 7. The right master cylinder piston 8 is in vertical communication with the left end of the L-shaped first oil guide tube 9, and a first controllable valve 10 is installed on the first oil guide tube 9. The lower surface of the first oil guide tube 9 is fixed to the upper end of the first support frame 11. A first piston 12 is installed at the upper end of the inner cavity of the right part of the first oil guide tube 9 for blocking...
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A triaxial rheological tester belongs to the technical field of geological testing instruments and comprises a machine frame, wherein a main hydraulic cylinder system, a first branch hydraulic cylinder system, a second branch hydraulic cylinder system and a third branch hydraulic cylinder system are placed on the machine frame; one end of the main hydraulic cylinder system is communicated with a first oil guide pipe; a first piston is mounted on the first oil guide pipe; a tube cap is mounted outside the first oil guide pipe; the lower end of the outer surface of the tube cap is connected with a loading plate; three oil circuits of the main hydraulic cylinder system are respectively in movable connection with the front parts of one sides of a first lever, a second lever and a third lever; the three branch hydraulic cylinder systems are respectively in movable connection with the rear parts of one sides of the first, second and third levers; movable pivot structures are mounted on the other sides of the first, the second and the third levers; and the three branch hydraulic cylinders are respectively connected with a first fixed block, a second fixed block and a third fixed block and respectively communicated with an oil pump. The triaxial rheological tester can be used for continuous mechanical testing of various different rocks for hundreds of hours, can obtain accurate measurement testing data and is low in cost.
Description
Technical field [0001] The invention relates to a geological testing instrument, in particular to a triaxial rheological testing machine for measuring rock rheology. Background technique [0002] The rheological properties of rock are the characteristics of rock's creep, stress relaxation, time-dependent expansion, and the time effect of strength. By studying the rheological properties of rocks, the long-term stability of rock engineering and many important issues in geology can be analyzed. [0003] Laboratory test rock rheological properties play a very important role in the development of rock and soil mechanics. In recent years, more and more scholars at home and abroad have begun to research and have successively developed some rheological testing machines for rock and soil. At present, the only measuring instrument for measuring the rheological properties of rocks is a single-axis rheological testing machine, which mainly uses servo motors to apply constant pressure to the ...
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IPC IPC(8): G01N3/12
Inventor 经纬经来旺孙中豪张宁
Owner ANHUI UNIV OF SCI & TECH