The roadheader is a machine for excavating a roadway on a flat ground. There are many types of roadheaders: according to the operation object, they are divided into ordinary machines and tunnel boring machines (Tunnel; according to the operation method, they are divided into open roadheaders and shield roadheaders.
By job object Divided into ordinary machines and tunnel boring machines (TBM) according to the work object. Among them, the tunnel boring machine is a comprehensive equipment for continuous operation by mechanically crushing rocks, excavating and supporting. According to the cutting process of the roadheader on the working surface, it is divided into a full-section roadheader and a partial-section roadheader.
By operation method According to the operation method, it is divided into open roadheader and shield roadheader. The former is well known that the large-diameter full-section rock tunnel boring machine is a complete set of boring equipment that integrates excavation, support and slag extraction. It is known as the “aircraft carrier” and “king of the roadheader” of construction machinery. The latter is well known for shield machines.
Working method: It is mainly composed of walking mechanism, working mechanism, shipping mechanism and reprinting mechanism. As the walking mechanism advances, the cutting head in the working mechanism continuously breaks the rock and transports the broken rock away. It has the advantages of safety, high efficiency and good lane quality, but it has a large cost, a complicated structure and a large loss.