The driving device of a belt conveyor is a marvel of engineering, consisting of an electric motor, coupling or hydraulic coupling, reducer, and transmission drum, among other components. For belt conveyors that traverse inclined sections, it's essential to incorporate brakes or backstops to ensure safety and efficiency. The primary role of the driving device is to seamlessly transmit gravitational force to the conveyor belt via friction through the transmission drum. This efficiently propels the belt, enabling it to adeptly transport goods with ease. (Click to view "Specific Applications and Analysis of Advantages and Disadvantages of 9 Drive Devices for Belt Conveyors, Help You Choose the Right One") While most belt conveyors traditionally utilize a single drum drive, the ever-increasing demands of capacity and transportation distances have ushered in the era of double drum and multi drum drives. As the traction force transmitted by the drive drum increases, innovative multi drum designs have emerged, each capable of housing one or two drive units. These units are intricately connected to the transmission drum shaft via a coupling. Typically, the motors employed are Y-series cage type motors, revered for their compact design, affordability, reliability, and adaptability to automated control. For smaller power needs (≤ 37kW), an elastic coupling facilitates direct drive, but as power requirements escalate (45-315kW), a hydraulic coupling assures smooth start-up transitions. When dealing with high power demands (220-800kW), a wound motor is ideal, offering ease of regulation and smooth initiation for long-distance belt conveyors, and adeptly addressing the power balance challenges of multi drum systems. Modern large-scale belt conveyors often transcend traditional cylindrical gear transmission, opting for bevel gear reducers to minimize lateral size. For mobile belt conveyors, weight reduction is paramount, leading to the adoption of belt, chain, or first stage open gear transmissions. Moreover, the utilization of cycloidal pinwheel reducers or electric drums provides further versatility and efficiency in this dynamic field.
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