A cutting head for coal and rock cutting transient temperature feedback coal and rock information and its use method

Abstract

The invention relates to a cutting head for coal rock cutting transient temperature feedback coal rock information and a use method thereof, which belong to the technical field of mining machines. The cutting head for coal rock cutting transient temperature feedback coal rock information includes a drum, a pick assembly and a wireless transmitter; the pick assembly includes a pick, a tooth seat, a thermocouple, a flexible buffer sleeve, a threaded column, a nut, Protective box, miniature voltmeter and miniature ammeter, the pick is installed in the tooth seat, the pick is provided with a middle hole and an internal thread hole, the flexible buffer sleeve is installed in the middle hole, the thermocouple is installed in the flexible buffer sleeve, the thermocouple Connect with the threaded column, the threaded column is installed in the internal threaded hole, and the threaded column is connected with the nut, one side of the nut is fixed with a protective box, a micro voltmeter is installed between the positive pole and the negative pole of the thermocouple, and the output positive pole of the micro voltmeter and the output negative pole is electrically connected with the wireless transmitter, the positive output end or the negative output end of the thermocouple is provided with a miniature ammeter, and the current output end of the miniature ammeter is electrically connected with the wireless transmitter.

Description

technical field [0001] The invention relates to the technical field of excavating machines, in particular to a cutting head for coal and rock cutting transient temperature feedback coal and rock information and a use method. Background technique [0002] At present, in the process of coal mining and digging, there are gangue or rock formations with high hardness in the coal seam, resulting in uneven hardness of the coal and rock mass. According to the hardness grade of coal rock, there are generally extremely hard coal seams, hard coal seams, and medium hard coal seams. , soft coal seam, extremely soft coal seam and other categories. At present, when the shearer is mining coal, there is no information feedback on the cut coal rock, and the hardness level of the cut coal rock cannot be detected in time. The cutting head of the shearer will only The artificially set cutting parameters cut the coal and rock, so the phenomenon that the cutting head adopts the same cutting parame...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of coal mining and digging, there are gangue or rock formations with high hardness in the coal seam, resulting in uneven hardness of the coal and rock mass. According to the hardness grade of coal rock, there are generally extremely hard coal seams, hard coal seams, and medium hard coal seams. , soft coal seam, extremely soft coal seam and other categories. At present, when the shearer is mining coal, there is no information feedback on the cut coal rock, and the hardness level of the cut coal rock cannot be detected in time. The cutting head of the shearer will only The artificially set cutting parameters cut the coal and rock, so the phenomenon that the cutting head adopts the same cutting parameters to cut the coal and rock may cause the cutting head to break and the pick Falling off, etc., seriously affects the progress of the excavation project and coal mining efficiency, and increases the construction cost during the excavation process

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