Machine head driving device of special scraper conveyer for coal mine

Abstract

The invention discloses a machine head driving device of a special scraper conveyer for a coal mine. The machine head driving device comprises a chain wheel shaft; a chain wheel is mounted at the middle part of the chain wheel shaft by means of spline fit; the two ends of the chain wheel shaft are each sleeved with a transmission gear; the chain wheel shafts at the two sides of the chain wheel are each provided with a bearing and a bearing seat, wherein a shaft shoulder sleeve is arranged between an inner ring of the bearing and the spline of the chain wheel shaft; a lining is arranged between an outer ring of the bearing and the bearing seat; a floating sealing device I is arranged between the lining and the chain wheel; a lubricating chamber is formed among the lining, the chain wheel and the shaft shoulder sleeve; a gland is mounted at the back surface of the transmission gear; a pressing sleeve is arranged at an inner chamber of the outer end of the bearing seat; a floating sealing device II is arranged between the pressing sleeve and the gland. The machine head driving device disclosed by the invention is capable of pressing and sealing the floating sealing device I between the lining and the chain wheel and the floating sealing device II between the pressing sleeve and the gland by utilizing the gland, the lining, the pressing sleeve and the shaft shoulder sleeve, so that the fixation clearances of the floating sealing device I and the floating sealing device II are guaranteed, and the service life of each bearing and the service life of each chain wheel are prolonged.

Description

technical field [0001] The invention relates to a coal mine conveying equipment, in particular to a coal mine special scraper conveyor head driving device. Background technique [0002] The driving sprocket is the key transmission element of the scraper conveyor. Through the engagement of the driving sprocket and the chain ring, the rotational torque of the driving motor is converted into a linear traction force and transmitted to the scraper chain. The scraper chain moves in a closed circle around the driving sprocket, and transports the raw coal on the upper chain of the scraper conveyor from the tail to the head, realizing the basic function of the scraper conveyor. Due to the positioning structure of the drive sprocket in the past, the oil injection method, etc. have affected the unreliable positioning of the drive sprocket, the sealing of the floating seal, oil leakage in the middle of the refueling pipeline, and inconvenient replacement, which reduces the service life...

AI Technical Summary

Problems solved by technology

Due to the positioning structure of the drive sprocket in the past, the oil injection method, etc. have affected the unreliable positioning of the drive sprocket, the sealing of the floating seal, oil leakage in the middle of the refueling pipeline, and inconvenient replacement, which reduces the service life and replacement of the drive sprocket. Period, the user strongly requests to improve the life of the sprocket and avoid replacing the sprocket underground

But so far, the service life of domestic sprockets cannot meet the needs of my country's modern coal mining face mining, and the driving sprocket has become an important factor hindering the further development of domestic heavy and super heavy scraper conveyors