Exterior-mounted star wheel motorized driving pulley

Abstract

The invention provides an external star wheel electric roller used for a belt conveyor. The electric roller comprises a left support, a left end cover, a roller body, a fixed shaft, a star wheel speed reducer, a right end cover, a hollow shaft, a right support, an input shaft, a coupling and a motor, wherein, the motor is installed outside the roller body and connected with the coupling through the input shaft; the star wheel speed reduced is adopted inside the roller body, a left supporting disk thereof is connected with the fixed shaft, while a right supporting disk is connected with the hollow shaft. andthe planet gear of the star wheel speed reducer engages with the internal gear on the roller body so as to realize the rotation of the roller body. The electric roller has the advantages of simple structure, impact resistance, stable rotation, large carrying capacity, low noise, long service life, and long period maintenance-free use of gear. The core module of the star wheel has the advantages of modularization, reliable performance, convenient maintenance and good radiating property, thereby prolonging the service life of the motor.

Description

technical field [0001] The invention relates to various large and medium-sized belt conveyors and driving devices for hoisting equipment, in particular to an externally mounted star wheel electric drum, which is widely used in ports, mines, metallurgy, electric power and other industries. Background technique [0002] The deceleration mechanisms of the existing internal and external electric drums mostly use internal and external two-stage deceleration, even three-stage deceleration gear transmission, or cycloidal pinwheel transmission. In order to realize the medium and low belt speed operation of the electric drum, the existing deceleration mechanism needs to adopt a two-stage or three-stage multi-stage transmission mode, which has a complex structure, short maintenance period, inconvenient maintenance, and limited application range; It overcomes the problem of heat dissipation of the motor, but the transmission mechanism is complicated, and it is basically suitable for us...

AI Technical Summary

Problems solved by technology

In order to realize the medium and low belt speed operation of the electric drum, the existing deceleration mechanism needs to adopt a two-stage or three-stage multi-stage transmission mode, which has a complex structure, short maintenance period, inconvenient maintenance, and limited application range; It overcomes the problem of heat dissipation of the motor, but the transmission mechanism is complicated, and it is basically suitable for use in small and medium power applications below 75KW. It is no longer competent in increasingly developed ports, mines and other occasions.

In order to balance the air pressure in the inner cavity of the drum, in the prior art, the vent cap is directly connected to the air outlet of the shaft center, and there is oil leakage, which wastes oil and pollutes the environment

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