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A Modular Jet-Mechanical Combined Rock Breaking Tool for Rock Breaking Experimental Platform

An experimental platform and modular technology, applied in mining equipment, tunnels, earth-moving drilling, etc., can solve problems such as restricting the progress of jet-assisted mechanical rock breaking technology, so as to facilitate rapid replacement and maintenance, improve rock breaking efficiency, expand range effect

Active Publication Date: 2021-06-01
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, as far as the inventors know, the rock-breaking mechanism and optimal coupling method of the jet-coupled machinery are not clear, and to determine the above factors, it is necessary to study many parameters such as the combination of jet machines, the number and position of jet cutters, etc. Due to the constraints of the existing test equipment, it is difficult to conduct a comprehensive study on the coupling conditions of all hobs (center hob, front hob, side hob) and jet flow at the same time, which seriously restricts the progress of jet-assisted mechanical rock breaking technology

Method used

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  • A Modular Jet-Mechanical Combined Rock Breaking Tool for Rock Breaking Experimental Platform
  • A Modular Jet-Mechanical Combined Rock Breaking Tool for Rock Breaking Experimental Platform
  • A Modular Jet-Mechanical Combined Rock Breaking Tool for Rock Breaking Experimental Platform

Examples

Experimental program
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Effect test

Embodiment 1

[0058] Such as figure 1 As shown, a modular jet-mechanical combined rock-breaking tool for a combined rock-breaking experiment platform, including a tool holder 111, a tool holder backing plate 112, a hob cutter module, a jet cutter module and a detection assembly, wherein the cutter holder 111 Slide rail 108 is provided on it. Of course, in this embodiment, the slide rail 108 is circular and is arranged on the periphery of the tool seat 111 . In other embodiments, the slide rail 108 may be of other shapes. A hob cutter module and a jet cutter module are installed on the cutter seat 111 , and the jet cutter module is fixed on the circular slide rail 108 .

[0059] Such as figure 1 , 2 As shown, the hob cutter module includes a hob 109, a hob bracket 110 and a hob locking plate 115, and the hob 109 is fixed on the hob frame 110 through the hob locking plate 115, and the hob frame 110 is connected to the knife The seat 111 is connected by bolts.

[0060] The jet tool modul...

Embodiment 2

[0087] In this embodiment, the jet bracket 117 is parallel to the hob bracket 110, the jet bracket 117 includes an upper jet bracket connecting rod 105, a lower jet bracket connecting rod 106, the jet mechanical arm 102 is assembled and connected with the upper nozzle bracket connecting rod 105, and the upper jet bracket The bracket 105 is connected with the round hole of the lower jet bracket 106 through the lower round rod, and is matched with the locking screw. The lower round rod of the upper jet bracket is marked with an adjustment scale 113, and the upper jet bracket can move up and down in the round hole through the round rod and rotate. Adjust nozzle target distance and azimuth.

[0088] The jet nozzle 101 can be pure water continuous jet nozzle, pulse water jet nozzle, abrasive water jet nozzle, critical carbon dioxide nozzle, liquid nitrogen jet nozzle, etc. The other end of the nozzle is connected to different energy sources / supply devices.

[0089] A three-way forc...

Embodiment 3

[0099] Different from the above-mentioned embodiments, the knife seat 111 of this embodiment is rectangular, such as Figure 10 , 11 As shown, the modular jet-mechanical combined tool includes a knife seat 111, on which a mechanical tool, namely a hob 109, is installed, and at least one side of the knife seat 111 is provided with ( Figure 10 The middle is that both sides have) support slide rail 119, and the jet cutter module is installed on the support slide rail 119.

[0100] The jet tool module includes a jet nozzle 101, a jet manipulator 102, an upper jet bracket 105 and a lower jet bracket 106. In this embodiment, the upper jet bracket 105 is a round rod bracket, and the lower jet bracket 106 is a square rod bracket.

[0101] The jet nozzle 101 is connected to the jet manipulator 102 for rotation adjustment, the jet manipulator 102 is connected to the round bar bracket for rotation adjustment, and the round bar bracket is connected to the square bar bracket for rotatabl...

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Abstract

This disclosure provides a modularized jet-mechanical combined rock-breaking cutter for a rock-breaking experimental platform, which solves the technical problem that the coupling mechanism of the jet and the hob and the optimal combination of rock-breaking are not clear, including the knife seat, The first tool seat backing plate, the second tool seat backing plate, the hob cutter module and the jet cutter module, the hob cutter module and the jet cutter module are arranged on the knife seat, and the opposite of the jet cutter module and the hob cutter module The position is adjustable; the lower end of the knife seat can be provided with a first knife seat backing plate and / or a second knife seat backing plate, and there is an angle between the upper surface and the lower surface of the first knife seat backing plate. The upper surface and the lower surface of the second tool seat backing plate are horizontal, and the inclination and height of the combined tool can be adjusted through the splicing and cooperation of several first tool seat backing plates and / or second tool seat backing plates to simulate the cutting edge on the cutter head. The hob at the set position finally solves the problem of coupling between the jet and the hob.

Description

technical field [0001] The disclosure belongs to the field of underground engineering excavation, and in particular relates to a modular jet-mechanical combined rock-breaking tool for a rock-breaking experiment platform. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] At present, in tunnel construction, TBM construction technology is widely used in tunnel engineering because of its advantages of safety, economy and high efficiency compared with traditional drilling and blasting method. However, when encountering extremely hard rock with high confining pressure and deep burial depth, the excavation efficiency will be greatly reduced, which is manifested in problems such as hob cutter ring fracture, hob penetration reduction, increased tool wear, and cutter head cracking. The problem seriously affected the construction schedule and increas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/087E21D9/06E21D9/00
CPCE21D9/003E21D9/087E21D9/0642
Inventor 王浩刘斌李彪张波朱洪涛胡蒙蒙曹文正张超
Owner SHANDONG UNIV
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