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What can be used to increase torque and decrease speed?
When you pedal up a hill, you use a gear train that provides more turning force but also less speed. A gear train is a mechanism used for motion. The motion of the gears is transmitted through the teeth. Two or more gears are meshed to make a gear train.
How do you increase gear torque?
The arrangement of the driver and driven gears determine if the gear train will increase torque or speed. To increase output torque using a gear train, a power source should be directly connected to a smaller gear and used to drive a larger gear.
Do more gears increase torque?
The associated torque is quantified by multiplying the circumferential component by the radius; larger gears experience a greater amount of torque, whereas smaller gears experience less torque. Similarly, the torque ratio is equal to the ratio of the gears’ radii.
What happens when you increase the torque of a DC motor?
So if a DC machine is running at at constant speed and you increase the load torque it will cause the motor to slow down and the armature current will increase and develop more torque.
How can I increase the speed of a DC motor?
Rewind it with more turns of thinner wire. For a given voltage, speed * turns will be a constant, so quadrupling the turns would give 1/4 the speed. To fit those turns in the same space, you would need to halve the wire diameter.
What’s the Ke constant of a DC motor?
(Ke being the constant of proportionality) In actual fact this is loosely accurate for all machine types but rather than being directly proportional it becomes a bit more complex & usually involves frequency. ( see How do DC motors work with respect to current, and what consequence is the current through them?)
How to calculate angular velocity of a motor?
Angular velocity is the speed of the motor in radians per second (rad/sec) which can be converted from RPM: rad/sec=RPM×π30. Ke is the second main motor parameter. Funnily enough, Ke is calculated using the same formula as Kt but is given in different units: