Drive Of Belt Conveyor

Drive Of Belt Conveyor

Drive device for belt conveyor in construction waste treatment production line

Introduction: In recent years, the amount of construction waste generated is very large, and the national waste disposal subsidy policy has also come out. Many users want to know how much money the township garbage disposal plant invests. For the construction waste treatment production line, the belt conveyor has a great effect. How to properly select the driving device of the belt conveyor is the key in the design of the belt conveyor.

Simply speaking, the belt drive unit is mainly driven by a geared motor and a motorized drum. According to the actual situation, the belt drive mode has many different configurations. Here are a few of the more widely used drive methods for reference.

One is the Y-type motor, the variable speed hydraulic coupling and the speed reducer. This driving method is a common driving method for large belt conveyors, and is generally used on long-distance large belt conveyors with a length of more than 800 m. The utility model has the advantages that the structure is relatively simple, the load is started, the motor is overloaded, and the maintenance workload is small. When the motor is driven by multiple motors, the delay can be started in different stages to reduce the impact on the power grid when the belt conveyor starts, and the reliability is better. High, soft start performance is better, with start-up controllable performance, that is, start-up time is controllable, start-up speed curve is controllable, and price is low. The disadvantage is that when the hydraulic coupling is started, the change of the oil volume and the speed change curve of the working chamber of the fluid coupling are nonlinear and have the property of being post-retentive, so the controllable dynamic response is slow, and it is difficult to perform closed-loop control. There is oil seepage. It is not suitable for lower belt conveyors and belt conveyors that require speed control.

The second is the Y-type motor and CST drive unit. Y-type motor and CST drive device are electromechanical integrated drive devices with high reliability, which are generally used on long-distance large belt conveyors with a length greater than 1000m. The utility model has the advantages that the soft start performance is good, the speed curve is linearly controllable at the time of starting, the speed curve is also controllable at the time of stopping, the closed-loop control can be performed, the motor is loaded with an empty load, the structure is simple, the maintenance workload is small, and when multiple motors are driven, the utility model can be divided. The delay of the station starts to reduce the impact on the grid when the belt conveyor starts. The disadvantages are: high requirements for maintenance workers and lubricants, and high equipment prices. It is not suitable for lower belt conveyors and belt conveyors that require speed control.

The third is the line motor and reducer. There are three control modes for the winding motor and reducer. One control method is the winding motor series frequency sensitive resistor or water resistance; the second control method is the winding motor series metal resistance; the third control method is the winding motor string. Level speed regulation. A control mode has no speed regulation function, and the motor can not be started frequently, and is generally used on a belt conveyor with a machine length greater than 500 m and the motor is not frequently started. The second control mode has no speed control function, but the motor can be started frequently. After the thyristor dynamic brake is used, it is the common driving method for the lower belt conveyor. The third control mode has a speed control function, which can be used for closed-loop control, generally used for long distances with a length greater than 1000 m, and requires a large belt conveyor with a speed control function.

The advantages are: one or two control modes, simple structure, small maintenance workload, good soft start performance, low price, small impact on the grid during start-up, high reliability, good controllability; third control mode , dynamic braking performance is excellent. The disadvantages are: the energy consumption of the first and second control modes is large when starting and stopping; the third control mode is complicated, and there is a tendency to be replaced by AC-AC or AC-DC-AC.

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New products development is a key part of Zenith culture since it was founded. Zenith R&D team is made of 78 senior engineers.