Coal mining equipment and roller electrical speed regulating system

Abstract

The invention discloses a roller electrical speed regulating system for coal mining equipment, which comprises a first detection element, a control element and a speed regulating element. In the system, the rotation speed of the roller can adapt to randomly changing condition of a coal cutting coal bed, so as to prevent the roller from being damage by an encountered hard coal bed and prolong the service life of the roller; meanwhile, under a normal use condition, for example the coal mining equipment works on a soft coal bed, the roller can rotate at a high speed to ensure the coal mining efficiency of the coal mining equipment. The control element also can regulate a traction speed by the traction speed regulating element, so that the traction speed of a coal mining machine and a cutting speed are consistent enough to realize high-efficiency cutting. The control element also can detect the coal loading effect of the roller and receive the stress condition of a conveyor through the detection element so as to control the cutting and traction speeds of the coal mining machine and ensure the high yield and efficiency of the fully mechanized coal mining equipment. The invention also discloses the coal mining equipment having the roller electrical speed regulating system.

Description

technical field [0001] The invention relates to the technical field of mining equipment, in particular to an electrical speed regulation system for a drum used in coal mining equipment. The present invention also relates to a coal mining equipment comprising the electric speed regulating system of the drum. Background technique [0002] With the rapid development of my country's economic construction, the contradiction between the increasing demand for coal and the backward production capacity has gradually become prominent. This puts forward higher requirements for the complex environment adaptability and mining efficiency of comprehensive mechanized coal mining equipment. [0003] Drum shearer is the core of comprehensive mechanized coal mining equipment. A typical drum shearer is mainly composed of cutting part, traction part, electrical device and other parts. Among them, the drum is one of the most critical components of the cutting section, which determines the prod...

AI Technical Summary

Problems solved by technology

Due to the constant cutting speed, when the coal shearer cuts coal in soft coal seam, the rotating speed of the drum is relatively slow, and the coal mining efficiency is reduced; and when the amount of coal dropped by the scraper machine is large, the drum continues to cut coal at a constant speed. Cutting and unable to slow down or stop, resulting in the load of the scraper conveyor being too high and stopping

[0006] In summary, the typical drum shearer is difficult to adapt to the complex geological conditions of coal mines due to its constant drum cutting speed, and hinders the further improvement of coal mining efficiency

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