Belt conveyor is a common material conveying equipment, which is widely used in mining, building materials, metallurgy and chemical industries. The driving mode of the belt conveyor determines its operation mode and performance characteristics, which affects its use effect and operating cost in production.
Overview of the three driving modes of belt conveyors
The driving methods of belt conveyors include: mechanical drive, electric drive and hydraulic drive, etc.
mechanical drive
Mechanical drive is a common belt conveyor drive method, which is characterized by simple structure, convenient maintenance, and is suitable for short-distance and small-load conveying operations.
Commonly used mechanical drives include the following:
Hand Conveyor : Hand conveyor is a traditional belt conveyor equipment, which is suitable for short-distance transportation of light-loaded materials. By manually operating the handle, the belt roller is driven to rotate to realize the conveying operation. The structure of the hand conveyor is simple and the price is low, but the production efficiency is low and the scope of application is narrow.
human conveyor :The human power conveyor is a kind of belt conveyor equipment driven by human power. Commonly used human conveyor devices include wheel conveyors, pedal conveyors, etc. The human conveyor is simple in structure and easy to use, and can carry different loads according to different specifications and loads. It is suitable for short-distance transportation of light-loaded materials, but the production efficiency is low.
Gear reducer drive: Gear reducer drive is a mechanical transmission method that is often used for light-load, medium-distance conveying operations. The transmission operation is realized by driving the hollow shaft axially or laterally through the gear reducer or forcing the belt roller to rotate. The gear reducer has a simple drive structure and is easy to maintain, but the transmission reliability is low and the scope of application is narrow.
electric drive
Electric drive is a modern belt conveyor drive method, which is characterized by simple structure, high degree of automation and wide applicability. Electric drive belt conveyors are usually equipped with equipment such as motors, pulleys or reducers.
Commonly used electric drives include the following:
Coating motor drive : Coating motor drive is a driving method that directly connects the motor to the belt roller, and the rotation of the motor drives the belt roller to rotate to realize the conveying operation. Coated motor drives are small in size and high in power density, and are suitable for light-load, short-distance transportation operations.
Inverter drive : A frequency converter is an electronic device that regulates the speed and torque of a motor. The automatic and precise control of the belt conveyor is realized by driving the adapted motor, reducer and other equipment through the frequency converter. The inverter drive can choose different speed and torque according to different loads and distances, which is suitable for different conveying requirements.
Hydraulic coupling : The hydraulic coupling is a hydraulic machine whose main function is to transmit the torque generated by the input shaft to the output shaft through the viscous force and rotational inertia of the liquid. The working principle of the hydraulic coupling is: when the input shaft rotates, the torque will cause the impeller to generate vortex under the action of the liquid, and drive the output shaft to rotate. The belt conveyor driven by the hydraulic coupling has a simple structure and stable operation, and is suitable for medium-load and long-distance conveying operations.
Hydraulic drive
Hydraulic drive is a belt conveyor drive suitable for heavy loads and long distances. The hydraulic drive equipment mainly includes hydraulic motors and hydraulic pumps. Its working principle is to convert the power of the input shaft into the power of the belt system through the hydraulic system to realize the conveying operation.
The hydraulically driven belt conveyor has the advantages of strong heavy-duty capacity, stable operation, and wide speed range, but the price is relatively high and the maintenance is relatively complicated.
Conclusion
Mechanical drive is mainly suitable for light-load, short-distance belt conveyor operation; electric drive is suitable for light-heavy load, long-distance conveying requirements, and can provide a high degree of automation and precise control; hydraulic drive is suitable for heavy load, Long-distance transportation needs.
When selecting the driving mode of the belt conveyor, it is necessary to choose the appropriate driving mode according to the specific conveying requirements and production conditions, comprehensively considering factors such as equipment cost, operation and maintenance cost, and energy utilization.