Multi-arm breaking excavation-type heading machine

Abstract

The invention discloses a multi-arm breaking excavation-type heading machine which comprises a rack, a walking mechanism (7), a transporting mechanism (4), a hydraulic system (8), an electrical system (5), an operating drive mechanism (6) and an excavating mechanism (2), wherein the excavating mechanism is connected with the rack through a connecting device (3); upper parts at two sides of the excavating mechanism are respectively provided with breaking mechanisms (1) which are connected with the rack through the connecting device; and the breaking mechanisms comprise breaking hammers, breaking hammer oil cylinders, chain frames, small arms, small arm oil cylinders, large arm oil cylinders, large arm seats, large arms and rotary oil cylinders. According to the multi-arm breaking excavation-type heading machine, the time spent on breaking large stone materials and treating protruded dangerous stones on roadways manually is shortened greatly; not only is the labor intensity relived, but also the manual working time is shortened, the roadway heading construction progress is improved, the heading construction cost is lowered, and the safety operation coefficient is improved; and the multi-arm breaking excavation-type heading machine provided by the invention is high in use reliability, good in durability, convenient to operate, and high in adaptability, and has long service life.

Description

technical field [0001] The invention relates to an excavating type roadheader, in particular to a dobby broken excavation type roadheader. Background technique [0002] The multi-arm crushing excavation roadheader uses a digging (shovel) bucket or a milling head to directly excavate the rock. When the hardness of the rock reaches f≤3 and the excavation does not move, the hard rock is broken by a breaker and then the rock is broken above or below the bearing. The roadway excavation machinery is used to load the materials into the transport mechanism and unload them to the stockyard. The roadway excavation machinery is the necessary equipment for the excavation construction of mines and roadways. At present, the following problems exist in the use of the cantilever roadheader: ① only when the rock hardness is greater than f8, the excavation construction cannot be carried out, and only the method of blasting can be used; ② when the rock hardness is greater than f6 and less tha...

AI Technical Summary

Problems solved by technology

[0005] Since the present invention is equipped with crushing mechanisms on both sides of the excavating mechanism of the roadheader, and is equipped with quick-change joints on the excavating mechanism, during excavation construction, single-arm multi-arm is selected according to the size of the roadway section. When the rock formation hardness If it is lower than f2, the multi-arm will dig or mill directly at the same time. When the hardness of the rock formation is higher than f2 and lower than f5, the multi-arm will use the fast milling head to perform milling directly. When the rock hardness is higher than f5, one arm will use a bucket to dig. The other arm uses the breaker to crush. If there are large stones in the material and dangerous blocks on the roadway, the crushing mechanism can be started to quickly break the large stones first, or the dangerous stones in the roadway can be quickly crushed. Carrying out crushing and risk elimination greatly shortens the time for manual crushing of large stones and processing dangerous rocks protruding from the roadway, and solves the problem that the current roadheader cannot construct in roadways with rock hardness above f8 and slope greater than 16 degrees, greatly reducing construction costs. The generated dust not only reduces the labor intensity, reduces the man-hours, reduces the cost of excavation construction, but also improves the safety operation factor

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