Shearer cutting section with interchangeable motor and hydraulic drives

Abstract

A coal cutter cutting portion capable of realizing interchange of a motor and hydraulic drive comprises a hollow shell, two sides of the front end of the shell are provided with a left roller and a right roller respectively; a high speed hydraulic motor is decelerated through a planetary transmission mechanism under a full hydraulic drive mode and then drives the rollers, the rear portion of the shell is a connection part of the shell and a coal cutter small arm, the side surface of the connection part is connected with the coal cutter small arm through a square plate connection structure, and side flanges are arranged surrounding the square plate; the square plate connection structure comprises a square installation plate fixedly connected to the side surface of the connection part, the coal cutter small arm is provided with a square groove, the top of the quadrangular installation plate is provided with a wedged chamfer angle convenient for receiving the square installation plate into the square groove; the side flanges are connected with the coal cutter small arm through screws; and the rear end of the connecting part is provided with an extended flange interface connected with a hydraulic drive module or a motor drive module.

Description

technical field [0001] The invention is aimed at a new type of cutting part of a drum type surface coal mining machine, especially a cutting part which can be interchanged between electric drive and full hydraulic drive. Background technique [0002] Coal is the most important energy source in my country. With the construction of large-scale open-pit coal mines in China, the proportion of open-pit mining in my country's coal mining is increasing. The continuous development of surface mining requires efficient, safe, clean, continuous and intelligent surface mining equipment. Drum-height-adjustable surface continuous miner is a large-scale open-pit mining equipment integrating the functions of mining, crushing, and shipment. Its good operating characteristics have been confirmed in actual production. The power system of the cutting section of the current drum type surface coal mining machine is generally driven by electricity, and there is no fully hydraulically driven cutti...

AI Technical Summary

Problems solved by technology

The motor system needs to be installed in the cutting section, and external power supply cables are required, which will cause the weight and volume of the entire cutting section to be relatively large, and the response is not sensitive

The connection between the cutting part and the fuselage is generally a flat flange connection. This structure will convert the torque borne by the cutting part into the shear force on the flange screws, and the torsional effect is not good.

Moreover, this flange connection is only suitable for the special cutting part connection, which is inconvenient to disassemble and replace

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