Test device and test method for researching rock breaking of sandstone vertical shaft hob

A test device and hob technology, applied in the direction of measuring device, testing of mechanical components, testing of machine/structural components, etc., to achieve the effects of expanding multi-functional benefits, improving rock breaking efficiency, and saving costs

Pending Publication Date: 2022-08-09
ANHUI UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, it is rare to see the hob rock breaking test bench device for the study of the suitability of the rock breaking tool type and the mechanical parameters of the drilling method.

Method used

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  • Test device and test method for researching rock breaking of sandstone vertical shaft hob
  • Test device and test method for researching rock breaking of sandstone vertical shaft hob
  • Test device and test method for researching rock breaking of sandstone vertical shaft hob

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Embodiment Construction

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. The various examples are provided by way of explanation of the invention and do not limit the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield yet another embodiment. Therefore, it is intended that the present invention embrace such modifications and variations as come within the scope of the appended claims and their equivalents.

[0035] In the description of the present invention, the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", " The orientations or positional relationships indicated by "top" and "bo...

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Abstract

The invention provides a test device and a test method for researching rock breaking of a sandstone vertical shaft hob, the test device comprises a frame body, a rock sample, a drill rod, a drill bit, a monitoring assembly and a control system, the rock sample is arranged in the frame body, the drill rod is arranged on the frame body, the drill bit is connected to the lower end of the drill rod, and the monitoring assembly is arranged on the frame body. The drill bit is located above the rock sample, a hobbing cutter is installed at the lower end of the drill bit, the drill rod drives the drill bit to rotate and move up and down, and the hobbing cutter can conduct rock breaking on the rock sample; the monitoring assembly is connected with a control system, and the control system can control the operation of the test device. The testing device can be used for carrying out vertical shaft hob rock breaking tests under different confining pressure working conditions, exploration is made in the aspect of researching the suitability of soft rock breaking cutter types, a proper cutter is selected for mine drilling method construction, cutter abrasion or cutter replacement frequency is reduced, the construction period is shortened, rock breaking efficiency is improved, and cost is saved.

Description

technical field [0001] The invention relates to the research field of coal mine shaft drilling method construction technology, in particular to a test device and a test method for studying sandstone shaft hob rock breaking. Background technique [0002] The development of mineral resources is advancing to the depth. The full-section drilling method with large-diameter bits has been implemented in the Cretaceous and Jurassic sandstones. Become reality. However, the Cretaceous and Jurassic sandstones have variable structural layers, and most of the mineral particles are in a weakly cemented state, with low strength and high porosity. Up to now, most of the hob rock breaking test benches are aimed at TBM (Tunnel Boring Machine, tunnel boring machine) equipment, and adopt a linear rock breaking method. If the rock specimen is not fixed, it needs to be moved horizontally and vertically under the premise of power equipment The cutter only moves up and down, which is quite differ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01N3/58G01N3/04G01N3/06G01M13/00
CPCG01N3/58G01N3/04G01N3/06G01M13/00G01N2203/0048G01N2203/0067G01N2203/04G01N2203/0676G01N2203/0682
Inventor杨青荣传新程桦姚直书蔡海兵王宗金亓燕秋
OwnerANHUI UNIV OF SCI & TECH