The first four-arm rock drilling rig comes out to fill the gap of domestic high-end rock drilling equipment
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At the 2020 Shanghai Baoma Engineering Machinery Exhibition, a domestically-made first four-arm rock drilling rig independently developed by China Railway Construction Heavy Industry Group was unveiled. The equipment can be used for tunnel excavation and support operations such as railways and highways, filling the gap of domestic high-end rock drilling construction equipment (photo courtesy of China Railway Construction Heavy Industry Group)
The first domestic four-arm rock drilling rig independently developed by China Railway Construction Heavy Industry Group was unveiled at the 2020 Shanghai BMW Construction Machinery Exhibition on the 24th. The car has four flexible and powerful steel arms, which look exactly like "Transformers". Each working arm can automatically complete a 5-meter deep drilling operation within 2 minutes. The equipment can be used for tunnel excavation and support operations such as railways and highways, filling the gap in China's domestic high-end rock drilling construction equipment.
According to China Railway Construction Heavy Industry Group, this four-arm rock drilling rig has not only four "obedient" booms, but also a smart "brain". By equipping each arm with a high-power rock drill, it is loaded with intelligent technology. The whole machine has the functions of fully intelligent excavation and drilling, advanced geological drilling and analysis, bolt construction, pipe shed and grouting reinforcement, coordinated charging and prying. In drilling operations, it automatically realizes hole drilling, anti-jamming and anti-air drilling, and records drilling parameters in real time, analyzes the causes of over-excavation and under-excavation, and instantly optimizes the next cycle drilling plan.
According to Liu Jinshu, deputy dean of the Special Equipment Research and Design Institute of China Railway Construction Heavy Industry Group, during the development process, the development team has overcome key core technologies such as precise control of redundant-degree-of-freedom manipulator drilling and integration of intelligent rock drilling rigs. . According to the actual needs of the project, the equipment can be equipped with functional modules such as fine face recognition, semi-automatic grouting, automatic pipe shed tooling, and mechanized charging to realize unmanned or less humanized construction and improve operation safety.
In terms of performance, compared with the three-arm rock drill rig that is widely used in the market, the four-arm rock drill rig has a drilling width of 17.6 meters and a height of 13.4 meters, and the coverage area of one operation reaches 200 square meters. , Equivalent to two three-arm rock drilling rigs operating simultaneously.
