Drilling and splitting device for tunnel excavation
A technology of tunnel excavation and telescopic boom, which is applied in the direction of tunnels, earthwork drilling, mining equipment, etc., and can solve the problem of affecting the utilization rate of drilling operation time, blasting over-excavation, under-excavation is difficult to control, and the harmful effects of surrounding rocks and other problems, to achieve the effect of reducing support workload, simple and convenient construction process, and reducing the rate of over- and under-excavation
Inactive Publication Date: 2019-06-07
CHINA RAILWAY CONSTR HEAVY IND
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Problems solved by technology
This blasting excavation method has many construction disadvantages, for example, it has harmful effects on the surrounding environment and surrounding rock, and the flying stones and gun smoke generated during the blasting process make tunnel excavation only intermittent operations
As a result, the utilization rate of drilling, ballasting, support and other operation time is greatly affected
[0003] In addition, in the construction of traditional drilling and blasting method, there are vibrations, flying stones, shock waves, noise, harmful gases and other influences during the construction process, so that the blasting construction will cause uneven defects on the tunnel surface. problems, increased support workload, low construction efficiency and poor safety performance
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[0028] The present invention is introduced below by accompanying drawing.
[0029] In this application, it should be noted that the directional terms or qualifiers "upper", "lower", "left", "right", "front", "rear" etc. used in this application are for the for the accompanying drawings. specifically with figure 1 The coordinate indication in , the direction indicated by X is defined as the front or similar terms, and the opposite direction is defined as the rear or similar terms, that is, the forward end of the drilling and splitting device used for tunnel excavation is defined as the front end or similar terms, The end opposite to the forward end is defined as the back end or similar terms. The direction indicated by Y is defined as up or similar terms, and the direction opposite thereto is defined as down or similar terms. The direction indicated by Z is defined as right or a similar term, and the direction opposite thereto is defined as left or a similar term. They are ...
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The invention provides a drilling and splitting device for tunnel excavation. The drilling and splitting device is used for being mounted on an operation trolley and comprises an arm frame support fixedly mounted on the operation trolley, a telescopic arm connected with the arm frame support, a rotating system connected with the telescopic arm and a drilling and splitting arm connected with the rotating system; the rotating system comprises an auxiliary arm and a rotary arm connected with the auxiliary arm in a hinged mode, and the auxiliary arm and the telescopic arm are fixedly connected; and the drilling and splitting arm comprises a drilling and splitting arm pushing mechanism connected with the rotary arm and a rock drilling mechanism fixedly connected with the drilling and splittingarm pushing mechanism, wherein the drilling and splitting arm can conduct up-down pitching and left-right swing through the auxiliary arm and the rotary arm correspondingly, and the drilling and splitting arm provides pushing power through the drilling and splitting arm pushing mechanism and conducts rock-drilling drilling construction through the rock drilling mechanism.
Description
technical field [0001] The invention relates to the technical field of excavation equipment in tunnel construction engineering, in particular to a drilling and splitting device for tunnel excavation. Background technique [0002] At present, the excavation of short and medium length hard rock tunnels is dominated by the drill and blast method. During tunnel excavation construction, firstly, blast holes are drilled, and then excavated by explosive blasting. This blasting excavation method has many construction disadvantages. For example, it has harmful effects on the surrounding environment and surrounding rock, and the flying stones and gun smoke generated during the blasting process make tunnel excavation only intermittent operations. As a result, the utilization rate of operation time such as drilling, ballasting, and support is greatly affected. [0003] In addition, in the construction of traditional drilling and blasting method, there are vibrations, flying stones, sh...
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IPC IPC(8): E21D9/10
Inventor 刘飞香郑大桥刘金书潘国智刘鑫郭云欣付庆
Owner CHINA RAILWAY CONSTR HEAVY IND
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