How do I change the pulley and turn the 1400 RPM to 2,800
40 mm calculation points in detail first to calculate the driven wheel rotation speed, and then calculate the driven wheel speed unchanged The wheels of the need to change much Driven wheel speed A = 2800 X [PI (70 X)/PI (80 X)] replacement for 1400 RPM speed unchanged after A = 1400 X [replacement after the wheel diameter X PI (B)/(80 X PI) 】 above can be concluded that B = 140 mm The simplified word is to understand that the diameter of the new wheel is the original diameter of x (the original speed/new speed).
The ratio was 7:8, the ratio was 7:4. From the point of view of doing work, it has no effect on power
The fan is the first type of connection, since the replacement rate is twice as fast. If the power of the motor is constant, the motor will be overloaded and even burned, so it cannot be replaced. This is not as simple as buying an electric machine with the same speed. In the second way, you can replace the gear with the speed ratio, or update the assembly, or replace the gear with the right diameter, and the pulley to match the speed. In conclusion, the combination of motor speed and load speed is paid attention to. In general, most people will choose to replace the same motor with the same parameter, regardless of cost or ease of use.
There are two ways of connecting the connection between the motor and the load. One is to connect directly through the back wheel (flange), the speed ratio is 1:1, that is, the speed of the motor is passed on to the load. The other is through variable speed gear, such as gearbox, chain, belt, etc., which can transmit power and change speed
It is not possible to replace 1, 400 revolutions per minute motor with 2, 800 revolutions per minute without making any changes. The motor is a kind of driving machine that requires a load, such as a generator, a pump, or a fan leaf, to complete a specific task. The power of the load is closely related to the speed of the speed, see the formula: P (power) = f (force) * v (velocity). Because of the increased speed of the load, the power will also change (increase), so the load will not change at will.
