Design of Transmission Device of Retractable Belt Coal Conveyor in a Coal Mine
Aiming at the key components of the transmission device of the belt coal conveyor,the goal is to be safe and efficient.Based on the fixed belt conveyor,a design scheme of retractable function is proposed.In order to realize this function,the conveyor belt winding device,storage device and retractable tail are added to the fixed belt conveyor.According to the known original data and working conditions,the power of the motor is calculated and two YBS40-4S flameproof three-phase asynchronous motors are finally selected.The designed reducer adopts three-stage gear transmission.The first group adopts spiral bevel gear transmission pair,Z1=11,Z2=29,modulus m=7.75.The second group adopts cylindrical helical gear transmission pair,Z1=17,Z2=54,modulus m=5.The third group adopts cylindrical gear transmission pair,Z1=15,Z2=44,modulus m=7.The total transmission ratio is i=24.56.It provides some reference for the design of the transmission scheme of the retractable belt coal conveyor in coal mine.
retractable belt conveyorstructural formtransmission schemereducer
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