How to solve the situation that the vehicle-mounted air sprayer burns the belt and the pulley is overheated?

How to solve the overheating of the pulley and the burning of the belt in the vehicle-mounted orchard air sprayer?
Source: Noriwa Agricultural Machinery

1) First of all, let’s talk about the reason for the heating of the pulley, because after starting the engine, the clutch works automatically through the speed of the engine. If the throttle control is too small at the beginning, the clutch is in a state of half separation and half clutch, so the clutch is always in The friction state is not the separation or opening and closing state, so the clutch is heated as a whole, and the clutch and the pulley are integrated, so the pulley is always hot, and the belt heats up after the pulley heats up. Besides, the function of the belt itself is to connect the engine pulley and the fan. The pulley, so there is such a situation that the pulley overheats and the belt burns.

2) Now that the problem has the simplest solution, what is the easiest way to solve it? That is to directly open the accelerator to the maximum after starting the machine, so that the speed of the engine reaches the maximum, so that the sub-clutch is in the state of opening and closing, the friction plate will not be in friction all the time, and there will be no overheating of the pulley. Of course, this is The most common solution.

3) In addition, to change this problem from the structure of the machine itself, it is to change the speed ratio of the engine pulley and the fan pulley. Our existing test is carried out strictly according to the speed ratio of 1:2, which solves the overheating and burning of the engine pulley from the source. The phenomenon of the belt