Weighing system driven by speed regulation of electric forklift

Weighing system driven by speed regulation of electric forklift

The drive weighing system is the key system of an electric forklift. It is generally composed of a traction motor, a control system (including a motor drive, a controller and various sensors), a mechanical deceleration and transmission device, and wheels. The operating performance of the electric forklift weighing system mainly depends on the speed regulation technology of the drive system. At present, electric forklift electronic scales have DC and AC drive speed regulation systems. 

On the other hand, when the armature voltage is constant, the excitation voltage of the DC motor must be weakened, so the motor torque increases, and the motor speed also increases. The large allowable current of the armature is constant. When the armature voltage remains unchanged, no matter how high the speed, the induced electromotive force is constant. Therefore, the allowable high power of the motor is constant, and the allowable large torque is reversed with the change of the motor speed. Variety. 

The balance forklift electronic scale adopts the combination of armature control and excitation control to enable the motor to have a wide range of speed control. The relationship between the large torque and high power allowed by the two control methods and the motor speed: when the motor speed is lower than the base speed, the excitation current is kept at the rated value, and the armature is used to control the speed. Battery forklift weighing system. 

When the motor speed is higher than the base speed, the armature voltage is maintained at the rated value. The DC speed regulation system of the electric forklift electronic scale is controlled by the excitation. The DC speed regulation system of the electric forklift electronic scale consists of the direction switch, electric control, accelerator, DC motor, and related wiring harness. , Mechanical transmission device and other components. 

After the controller receives the instructions for the operation of the forklift from electrical components such as the direction switch and accelerator, it is pulse-width modulated, and a certain voltage is applied to the DC motor to drive the forklift. The DC speed regulation system of electric forklifts is composed of direction switch, electric control, accelerator, DC motor, related wiring harness, mechanical transmission device, etc. 

After the controller receives the instructions for the operation of the forklift from electrical components such as the direction switch and accelerator, it is pulse-width modulated, and a certain voltage is applied to the DC motor to drive the forklift. 1. Be sure to pay attention to safety when jacking up the forklift electronic scale. Please use jacks or stoppers. Confirm the surrounding safety conditions. The rope used when lifting heavy objects must have a sufficient safety factor. Before using power tools to disassemble parts, make sure that bolts, nuts, pipes and wiring harnesses are completely separated.