Motorized transfer trolley, also known as electric flatbed, transfer cart, trolley, motorised transfer trolley, etc., is an in-plant rail transport vehicle. First, it is necessary to lay tracks on the ground. The track is generally I-shaped surface contact track; secondly; It is an electric drive vehicle that runs automatically under the drive of a motor reducer. Again, it is a flat platform cart with a flat surface without a cover. In special cases, it can also be non-planar but without a cover. The steering wheel has no forward and backward directions. (Even if you turn, the city turns by track).

 

Motorized transfer trolley: This type of vehicle has the characteristics of simple structure, convenient use, large carrying capacity, no fear of dirty, easy to maintain, long service life, etc. It is a convenient, sturdy, economical, practical, easy to clean and many other advantages. The preferred means of transport for heavy loads between the interior of the plant and between the plant and the plant.

There are seven main technical parameters of motorized rail transfer trolley: power supply mode, deadweight tonnage, table size, table height, track length, track spacing, operation mode. The most important technical parameters are power supply mode and deadweight tonnage. The power supply method determines its model and determines its specifications in terms of deadweight tonnage.

 

Simple classification of motorized transfer trolley:

1. The BTL series is a cable drum transfer trolley, which is powered by a cable reel 380V. The cable reel is hysteresis coupled to ensure that the cable is evenly stressed and not easily pulled. The AC 380V provides power to the YZ lifting metallurgical motor on the flat car, and the motor drives the flat car to run. When the flat car is running, the cable reel automatically rolls up or releases the cable, which is affected by the length of the reel supply. Generally, the maximum running distance is less than 200m.

 

2. The BDG series is a 36V single-phase (three-phase) low-voltage rail powered electricized trolley, powered by rail slide lines. The ground step-down transformer control cabinet steps down the single-phase (three-phase) AC 380V to single-phase (three-phase) 36V, feeds it to the flat car via the track slip line, and then boosts the single-phase (three-phase) via the on-board step-up transformer. ) AC 380V. Power is supplied to the single-phase capacitor motor for flat cars (YZ lifting metallurgical motors for three-phase). Because it does not use cables, it is safe and reliable, not afraid of hot, not afraid of smashing, does not hinder cross-transportation, and is easy to realize remote control and automation. It is very convenient to transport the plant. However, the track construction requirements are relatively high, and the track insulation must be ensured. When the distance exceeds a certain running distance, the track should be compensated with a copper row. The number of step-down transformers must also be increased when the operating distance is long.

Since the starting current of the BGD motorized transfer trolley flowing through the track is very large (up to 1000A), there is a large voltage drop at the end of the track, which makes the single-phase capacitor motor difficult to start, so the maximum load tonnage of the single-phase KPD flat car is 50. Tons, when the load is more than 50 tons, the three-phase 36V low-voltage rail power supply is used, and the YZ crane metallurgical motor.

The product BDGZ not only inherits the advantages of the BDG flat car but also avoids the disadvantages of the original model starting difficulty and short running distance. KPDZ flat car rectifies single-phase (or three-phase) AC 36V on the track into DC 36V with vehicle rectification device, and drags the DC traction motor to make the flat car run. The DC motor is not easy to burn compared with the AC motor, and the starting torque is large. The advantage of strong overload capability. Even under the condition of under-voltage, it can work reliably even under the condition of aging of the track insulation.

3, BXC series battery motorized transfer trolley, powered by battery. The battery supplies power to the DC traction motor, and the DC motor drives the flat car to run. Compared with AC motors, DC motors have the advantages of not easily burning, high starting torque and strong overload capability. The running distance is not limited. It has greater safety performance and maneuverability than the KPJ and KPD series of flat cars. The running distance is not limited, and there is no insulation requirement for the track, so the construction is convenient and the cost is low.