Leverage Rock Tensile Compression Rheological Tester

Abstract

The invention discloses a lever type tester for tension and compression rheology of rock. The lever type tester comprises a lever bracket, a primary lever, a secondary lever and a loading plate. The primary lever is hinged on the lever bracket; the secondary lever is formed by detachable connection from two lever segments; a first end of the secondary lever is hinged on the bracket lever, while a second end of the secondary lever is connected with the primary lever; a second fulcrum device is connected on the loading plate; and one lever segment of the secondary lever, connected with the primary lever, is detachably connected with the second fulcrum device. The lever type tester has the advantages that the load can be amplified at two stages by the primary lever and the second lever, the application of a big test load on a rock sample under the conditions of few weights and short levers is realized and the loading range is expanded; a compression rheology test of rock can be realized through the lever type tester under the condition that the second fulcrum device is removed; and a tension rheology test of rock can be realized through the lever type tester under the condition that the second fulcrum device is installed and the two lever segments of the secondary lever are detached from each other, thus the testing functions of the lever type tester are increased.

Description

technical field [0001] The invention relates to a rock rheology tester, in particular to a lever type rock rheology tester. Background technique [0002] Rock rheology refers to the properties of rock such as creep, stress relaxation, time-dependent volume expansion, and time-dependent 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] The lever test device is a traditional and commonly used experimental device for testing rock compression and extension rheology, but the traditional lever test device has a simple structure, and generally can only do a single compression or tension test, and cannot be used for both compression tests and The function of the tensile test; and the force-adding capacity of the traditional lever test device is limited. If you want to apply a large force, you need to hang a heavy weight, or make the lever very long, which will bring g...

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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a lever type rock tension compression rheological tester, to solve the defect that the traditional lever test device can not only do the compression test, but also the tension test, and can also solve the traditional The defect that the lever experimental device cannot conveniently apply a large load

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