Automatic control coal quality sampling system for underground transportation

Abstract

The invention is applicable to the technical field of coal quality sampling, and provides an automatic control coal quality sampling system for underground transportation. The system comprises a bracket, a transverse moving device, a lifting device, a gripping device and an automatic control device. The end part of the transverse moving device is fixedly connected with the lifting device. The grabbing device comprises a rotating part, a fixed shaft, a moving sleeve, a connecting rod and a grabbing rod. A limiting groove is formed in the rotating part and comprises a plurality of straight edgesections and arc-shaped sections. The moving sleeve is connected with the rotating part through a moving rod, and a limiting column is arranged on the moving rod. A supporting rod is arranged at the end of the fixed shaft, and a reset piece is arranged between the supporting rod and the movable sleeve. The automatic control device comprises an electric control box, a control box and a remote controller. The electric control box comprises a programmable controller, a remote control receiver and an electromagnetic valve, and the grabbing unit comprises a rotating speed unit, a rotating pause unit, an interval time adjusting unit and a forward and reverse rotating unit. Therefore, the coal quality can be effectively and automatically grabbed, the manual operation is reduced, and the working safety is improved.

Description

technical field [0001] The invention relates to the technical field of coal quality sampling, in particular to an automatic control coal quality sampling system for underground transportation. Background technique [0002] At present, the coal quality sampling in most mines still adopts the traditional manual sampling operation method (samplers use a shovel to regularly sample at the unloading point of the transportation equipment), and the traditional manual sampling operation method requires at least one person, and it is difficult to guarantee the sampling quality. Coal gangue is a safety risk of injuring people. At present, most of the finished mining coal sampling equipment on the market are used in ground belt corridors or train and car departure stations; and the finished sampling equipment has the disadvantages of high price, short maintenance cycle, high maintenance cost, large equipment volume and complex structure, etc. It is suitable for the underground environm...

AI Technical Summary

Problems solved by technology

[0002] At present, the coal quality sampling in most mines still adopts the traditional manual sampling operation method (samplers use a shovel to regularly sample at the unloading point of the transportation equipment), and the traditional manual sampling operation method requires at least one person, and it is difficult to guarantee the sampling quality. Coal gangue injury safety risk

At present, most of the finished mining coal sampling equipment on the market are used in ground belt corridors or train and car departure stations; and the finished sampling equipment has the disadvantages of high price, short maintenance cycle, high maintenance cost, large equipment volume and complex structure, etc. Suitable for underground environments with narrow spaces and harsh environments

[0003] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

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