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Excavation unloading device suitable for geomechanical model tests

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: 2018-01-23
PLA UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • 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 excavation chamber is small and the depth is long, and it is difficult to suck out the granular material in the model material

Method used

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  • Excavation unloading device suitable for geomechanical model tests

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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 excavation and unloading device suitable for geomechanics model tests, comprising a cutting drill bit, an auger rod, a propulsion reduction box, a first stepping motor, a lead screw, a rotating reduction box, a second stepping motor, Sliders, displacement sensors and linear guides; the propulsion gearbox is connected to the first stepping motor, the rotary gearbox is connected to the second stepping motor, one end of the lead screw is connected to the rotary gearbox, and the other end passes through the propulsion gearbox and the auger Rod connection, the other end of the auger rod is fixedly connected to the cutting bit; one end of the linear guide rail is fixedly connected to the propulsion reduction box, and the other end is provided with a slider, the slider slides along the linear guide rail, the top of the slider is fixedly connected to the bottom of the rotary reduction box, and the slider There is a displacement sensor on it. The invention can dynamically simulate the whole excavation and unloading process of the surrounding rock of the chamber in the model test, and accurately control the section shape of the excavation 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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Patent Type & Authority Patents(China)
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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