Roadheader cutting drum

Abstract

The invention discloses a roadheader cutting drum, and belongs to the field of excavation machinery. The roadheader cutting drum includes an inner cutting drum body, outer cutting drum bodies arrangedon both sides of the inner cutting drum body, accommodating grooves formed in both sides of the outer cutting drum body and telescopic cutting drum bodies arranged in the accommodating grooves and slidably connected with the outer cutting drum bodies; and a plurality of groups of rock breaking teeth are arranged on the outer sides of the inner cutting drum bodies, the outer cutting drum bodies and the telescopic cutting drum bodies correspondingly. The telescopic cutting drum bodies are internally provided with fixed seats, and mounting seats are arranged at the groove bottoms of the accommodating grooves. Telescopic oil cylinders are arranged on the mounting seats, and the output ends of the telescopic oil cylinders are fixedly connected with the fixed seats. The roadheader cutting drumenables the telescopic oil cylinders on both sides of the outer cutting drum bodies to be improved from an exposed installation mode to a built-in installation mode, so that the telescopic oil cylinders are effectively protected and the structural strength of both sides of the outer cutting drum bodies is increased, and the coal mine driving efficiency and tunneling quality are improved.

Description

technical field [0001] The invention relates to the field of excavating machinery, in particular to a bolter cutting drum. Background technique [0002] At present, there are mainly three types of coal roadway excavation in my country: the first is the supporting operation line of the cantilever type roadheader and the single bolter; the second is the supporting operation line of the continuous coal miner and the bolter; Anchor integrated machine excavation and anchor integrated excavation. At present, the coal roadway excavation in my country is mainly based on the first type, which has a wide range of applications, but the excavation speed is relatively low. The second double-lane layout method, cross-transposition construction, has higher requirements on geological conditions. Under the condition of unstable roof conditions, the excavation speed will be greatly reduced, and it is difficult to take advantage of its rapid excavation. The third type of integrated machine fo...

AI Technical Summary

Problems solved by technology

At present, the coal roadway excavation in my country is mainly based on the first type, which has a wide range of applications, but the excavation speed is relatively low.

The second double-lane layout method, cross-transposition construction, has higher requirements on geological conditions. Under the condition of unstable roof conditions, the excavation speed will be greatly reduced, and it is difficult to take advantage of its rapid excavation.

At present, the horizontal cutting devices used in domestic coal mine roadway excavation equipment are not retractable and lack intelligent control. The disadvantages are: the roadway cannot be formed at one time, and continuous and rapid excavation cannot be realized; If a fault occurs, it cannot be repaired in situ; the tunneling equipment is inconvenient to enter and exit the corresponding roadway; the operator cannot accurately control the position of the coal plate and the coal roof during the tunneling process

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