Excavating and unloading device suitable for geo-mechanical model experiment

A technology of geomechanics and model testing, applied in the direction of measuring devices, scientific instruments, instruments, etc., can solve the problem of difficult suction of granular materials, and achieve the effects of convenient control, good overload performance, and simple structure of the whole machine

Inactive Publication Date: 2015-08-12
PLA UNIV OF SCI & TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

The cutting slag powder is sucked out by a vacuum cleaner, but it is difficult to implement when the excavatio...

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  • Excavating and unloading device suitable for geo-mechanical model experiment

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Embodiment 1

[0020] An excavation and unloading device suitable for geomechanical model tests, including a cutting drill bit 1, an auger rod 2, a propulsion reduction box 3, a first stepping motor 4, a lead screw 5, a rotating reduction box 6, and a second stepping Motor 7, slider 8, displacement sensor 9, linear guide rail 10 and fixed frame 11.

[0021] The input end of the propulsion reduction box 3 is connected with the output end of the first stepping motor 4, the input end of the rotation reduction box 6 is connected with the output end of the second stepping motor 7, and one end of the leading screw 5 is connected with the output end of the rotation reduction box 6 The other end passes through the output end of the propulsion reduction box 3 and is welded with the auger rod 2 (flange connection, bolt connection, etc. can also be used), and the other end of the auger rod 2 is welded with the cutting bit 1 (also can be connected by bolts) ). One end of the linear guide rail 10 is wel...

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Abstract

The invention discloses an excavating and unloading device suitable for geo-mechanical model experiment. The device comprises a cutting drill bit, a spiral drill rod, a propulsion reduction gearbox, a first step motor, a screw rod, a rotation reduction gearbox, a second step motor, a slide block, a displacement sensor, and a linear guide rail. The propulsion reduction gearbox is connected to the first step motor, the rotation reduction gearbox is connected to the second step motor, one end of the screw rod is connected to the rotation reduction gearbox, the other end of the screw rod goes through the propulsion reduction gearbox and is connected to the spiral drill rod, the other end of the spiral drill rod is connected to the cutting bit fixedly; one end of the linear guide rail is connected to the propulsion reduction gearbox, the other end of the linear guide rail is provided with the slide block, the slide block moves along the linear guide rail, the top of the slide block is fixedly connected to the bottom of the rotation reduction gearbox, and the displacement sensor is arranged on the slide block. The provided device can dynamically simulate the whole process of evacuation and unloading of chamber surrounding rock in a model experiment and is capable of precisely controlling the cross-section shape of the excavated chamber and the speed of excavation and unloading.

Description

technical field [0001] The invention belongs to the field of rock mechanics test equipment, in particular to an excavation unloading device suitable for geomechanics model tests. Background technique [0002] With the rapid development of my country's traffic tunnels, water conservancy and hydropower, mine roadways, energy reserves, national defense and other underground engineering construction, the development and utilization of underground space has gradually entered the deep part, the engineering geological conditions encountered are becoming more and more complex, and the problems are becoming more and more complex. It is challenging, and various engineering disasters occur frequently, such as rockburst, large deformation of tunnel surrounding rock, and partition cracking, etc. Once it occurs, the consequences will be very serious. The current research methods mainly include theoretical research, model test and numerical simulation. Due to the characteristics of the roc...

Claims

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Application Information

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IPC IPC(8): G01N3/02
Inventor 戎晓力王明洋李浪卢浩蔡立艮
Owner PLA UNIV OF SCI & TECH
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