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Question:

Change the size of the pulley, adjust torque and motor speed,

Change the size of the pulley, adjust torque and motor speed,

Answer:

The second type is the motor small belt wheel which drives the roller belt wheel, which has the deceleration effect, so the second torque is large
In this design, the big wheel can rotate at the right speed and load, which is the goal, rather than taking an electric motor to drive it. If the motor has been set, such as title, change the pulley size proportion is can make great rotation, speed can only meet the requirements don't know.
Would not bite Angle is too small, so the last also confirm the small round Angle is enough, otherwise you need to add tension wheel, or increasing the wheel diameter, or cut motor rated speed, reduce the belt drive transmission ratio. The machines that do this are largely reliable, otherwise they are cobbled together.
After determining the power of the motor, the diameter of the belt wheel is designed. The diameter of the wheel is not optional, considering the size of the motor shaft and the power transmitted by the belt drive mechanism. The wheel is too small to be slippery. After determining the diameter of the small wheel, the diameter of the large wheel is determined by the relation design of the rotary speed and the motor speed.
The first thing to do is to calculate how much torque is needed on the big wheel shaft to be able to drive it, and then to determine the driving power according to the speed of rotation that the big wheel requires. Power = torque (ox m) * speed (revolutions per minute) / 9550, the number is KW number. Considering the loss and allowance, the power of the motor is 1.5 to 2 times higher than that.

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