we know motor rpm, gearbox ratio, gear spoket no of teeth, conveyor pully spoket no of teeth and conveyor pully O.D.
Exm- we have a motor of 1500 rpm, gearbox ratio 30:1, gear spoket no of teeth 24, conveyor spoket no of teeth 48, and conveyor pully (head pully) od is 200 mm,
Solu- motor speed- 1500 rpm
gear output - 1500/30 = 50 rpm
conveyor pully rpm - 24*50/48 = 25 rpm
conveyor pully cercumfrance - 200*3.14 = 628 mm or 0.628 meter
conveyor speed - 25*0.628 = 15.700 meter per menuts
Yea, but what if you are building the motor yourself and need to know the maximum rpm it will reach.
The main reason is the motor’s variable speed behaviour. When the voltage applied to the armature of a DC motor increases, themotor’s speed increases correspondingly.Another reason is the DC motor can develop full torque from zero up to its base speed. This constant-torque characteristic allows DCmotors to be used on applications such as conveyor belts, elevators, cranes,extrudesand mixers,amongstothers. The full torquefrom zero speed is useful when the application needs to be stopped when fully loaded, and then got moving again
An induction motor rotating at higher than synchronous speed would be generating power, thus would be a generator. No motor operating as a motor runs above synchronous speed.
Dc shunt motor is constant speed motor.Its speed is constant with armature current.This shunt motor is used in paper mills and drilling machines
It is used for sensorless motor control. With vf speed control u can control speed of any induction motor.
if you can't change the RPM of the motor, you have to change the gearing of the chain drive. Fit a smaller sprocket to the motor to slow the conveyor down, or a bigger to speed it up.
Encoder is usually used to measure the speed of a motor or a conveyor and provide feedback to the control system. In this case, the encoder reads the speed of the elevator and gives feedback to its control system
The frequency inverter changes the frequency of power lines to the electric motor, hence to change the speed of the motor, in some applications like conveyor, it does not need full speed running all the times, so the frequency inverter comes in as the speed control role to save electric energy.
The person on the conveyor belt is moving at 120 mph relative to the ground. This is because the person is running at 20 mph relative to the conveyor belt, and the conveyor belt is moving at 100 mph relative to the ground. Therefore, the person's total speed is the speed of the conveyor belt (100 mph) plus the speed of the person relative to the conveyor belt (20 mph), giving a total speed of 120 mph.
Yea, but what if you are building the motor yourself and need to know the maximum rpm it will reach.
calculate the synchronous speed from the frequency & the no. of magnetic poles in the stator, then measure the actual speed of it with a tachometer, then subtract the actual speed from the synchronous speed.
Yes. For example, if you place an object on a moving conveyor belt, the friction between the object and the conveyor belt will speed it up.
The main reason is the motor’s variable speed behaviour. When the voltage applied to the armature of a DC motor increases, themotor’s speed increases correspondingly.Another reason is the DC motor can develop full torque from zero up to its base speed. This constant-torque characteristic allows DCmotors to be used on applications such as conveyor belts, elevators, cranes,extrudesand mixers,amongstothers. The full torquefrom zero speed is useful when the application needs to be stopped when fully loaded, and then got moving again
It is a variable frequency drive, used to control the speed of a 3-phase motor all the way from stopped to full speed, and anywhere in between. Also called VSD, for variable speed drive, they are used to control pumps, fans, conveyor belt drives, anywhere a motor needs to be controlled to a precise speed other than the normal nameplate full speed, or where the speed needs to change to meet different operating conditions.
times by 2
I believe it is like a radar gun (used by the police to clock your speed), but emits soundwave pulses to calculate the speed of a moving motor vehicle. Someone correct me if I'm wrong!
That depends on the speed. Divide the distance by the speed to calculate this.That depends on the speed. Divide the distance by the speed to calculate this.That depends on the speed. Divide the distance by the speed to calculate this.That depends on the speed. Divide the distance by the speed to calculate this.