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Impact-assisted heading machine for hard rock ore exploitation

A technology of roadheader and hard rock, applied in the direction of propulsion, cutting machinery, earthwork drilling, etc., can solve the consumption and wear of picks, the economical applicability discount of pick cutting and rock breaking, and the hardness coefficient of non-coal mines is large, etc. problems, to achieve the effect of flexibility, application scope and efficiency improvement of the walking mechanism

Inactive Publication Date: 2014-05-14
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to the large hardness coefficient of non-coal mine rocks, the traditional cantilever roadheader not only wears and wears the picks seriously when cutting rocks, but also has a lot of dust. Especially when encountering relatively complete rock mass, the single pick cutting The economic applicability of rock breaking is greatly reduced

Method used

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  • Impact-assisted heading machine for hard rock ore exploitation
  • Impact-assisted heading machine for hard rock ore exploitation
  • Impact-assisted heading machine for hard rock ore exploitation

Examples

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Embodiment Construction

[0021] The present invention will be further described below with reference to the drawings and specific embodiments.

[0022] See figure 1 with figure 2 , The chassis is the tire self-propelled chassis 1 of the tire self-propelled scraper with larger axle thrust and more flexible walking mechanism. The tire self-propelled chassis 1 is equipped with a cab, the cantilever 9 is connected to the tire self-propelled chassis 1, and the cantilever 9 An impact device 5 is installed. The impact device 5 is equipped with an impact head 8 that can be extended and retracted for impact motion. The impact head 8 extends to the front of the cutting head 6. The cutting head 6 is mounted on the top of the cantilever 9 and the cutting head 6 Picks 7 are arranged regularly.

[0023] Preferably, the impact devices 5 are in three groups, which are installed on both sides and the top of the cantilever 9 respectively.

[0024] See image 3 , Figure 4 with Figure 5 Specifically, the impact device 5 in...

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Abstract

The invention discloses an impact-assisted heading machine for hard rock ore exploitation. The impact-assisted heading machine comprises a chassis, a cab, a cantilever (9) and a cutting head (6) installed at the top end of the cantilever (9), wherein the cab and the cantilever (9) are installed on the chassis. At least one impact device (5) is installed on the cantilever (9). An impact head (8) which can stretch and retract to conduct impact motion is installed in each impact device (5) and can stretch to the position in front of the cutting head (6). According to the impact-assisted heading machine for hard rock ore exploitation, on the basis of the cutting rock-breaking function of a traditional cantilever excavator, the impact rock-breaking function is added, so that the rock-breaking ability is greatly improved, the application range is greatly broadened, and efficiency is greatly improved; besides, since the chassis of a tire self-propelled scraper is used for replacing a chassis of a crawler-type heading machine, a walking mechanism can be more flexible and lighter, and particularly the impact-assisted heading machine can be better adapted to the environment that a working face is narrow and complicated during exploitation of hard rock deep in an underground mine.

Description

Technical field [0001] The invention relates to a roadheader, in particular to a roadheader whose chassis is a scraper chassis, and the rock breaking method is a combination of impact and cutting. Background technique [0002] With the gradual depletion of shallow mineral resources, it has become an inevitable trend to seek resources from deep mines. The characteristics of “three highs and one disturbance” such as deep high temperature, high stress, high karst water pressure and disturbance of mining activities make the rock environment more complicated. Deep disasters such as rock bursts, zonal ruptures, and water inrush occur frequently, making mining difficult. Mined in shallow parts. The deep rock mass stores a large amount of energy, which can be induced to release under external disturbances. This feature can cause geological disasters on the one hand, and on the other hand, it can use the high stress characteristics of the rock mass to induce cracking and fragmentation of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C25/52E21C29/22
Inventor 周子龙李夕兵吴志波徐红承何中国
Owner CENT SOUTH UNIV
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