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How do you make an electric motor spin slower?
A couple of things you can do:
- Use gears to change ratio of speed, which is what you’re going to do.
- Use a stepper motor, which are commonly used for high-torque, low RPM applications.
- Find some sort of PWM control circuit to slow it down, although you probably won’t be able to get it down to 5-10RPM.
Does motor speed affect torque?
Since the rated output power of a motor is a fixed value, speed and torque are inversely related. As output speed increases, the available output torque decreases proportionately.
What is a low torque motor?
High torque low RPM motors are specifically designed to move heavy parts and equipment at a slower rate. Low RPM motors, however, are specifically designed to run at lower, slower speeds, thus a gearbox is not required to maintain more controlled operation.
Which machine has high torque low speed?
1. Vane motor is hydraulically balanced because pressurized fluid always acts on equal and opposite areas. Low-speed/high-torque (LSHT) motors are one of the more cost-effective and dependable parts of a hydraulic system.
Can you slow down the speed of an electric motor?
If you want to reduce rpm without compromising speed regulation then use a voltage regulator or PWM controller to lower the motor voltage. If you also want higher torque then use a gearbox (which increases torque by the same proportion as it reduces shaft rpm).
What creates torque in an electric motor?
As the electric current travels through the motor within a magnetic field, it generates a force. The more current applied, the more the motor will spin. But at zero RPM, all of the electricity the motor creates from the time electric power is applied becomes instant torque—without any back EMF to reduce its output.
Is it better to have higher torque at lower rpm?
Torque, simply, is the ability of a vehicle to perform work — specifically, the twisting force applied by the crankshaft. Because there is generally a limit on how fast you can spin an engine, having higher torque allows for greater horsepower at lower rpms.
What causes an electric motor to turn slow?
Many of the parts in an electric motor are effectively non-serviceable as a do-it-yourself task, such as the windings, but you can replace the brushes that make contact with the armature. Worn brushes are often responsible for a motor that turns slowly, as the contacts break down and current can’t be applied.
Where does the torque come from on a brushless DC motor?
Might want to consult the torque speed curve… http://www.edn.com/design/sensors/4406682/2/Brushless-DC-Motors—Part-I–Construction-and-Operating-Principles Max power is actually somewhere at mid speed assuming that you are regulating the current into the windings to the permitted rating of the motor. The torque is proportion to the coil current.
Why do I need a big motor on my bike?
It’s a simple system, but the motor has to be big and heavy to produce enough power – a small motor spinning slowly doesn’t produce enough torque, and the speed you want your wheel to turn at is relatively slow, so the motor needs to be as big as possible to produce torque at low speeds, or else you could add some gears to change that….
What happens when you start an electric motor?
Start your electric motor. You will find it sparks for a while around the brushes until they bed in. Your motor won’t operate at full power immediately, but leave it running for a while and once the brushes are bedded in the motor will operate normally.