The principle of determining a straight line based on two points. Find a thin line, find two points on the outer wall of one of the pulleys (find it casually, preferably in the direction of the belt), straighten it, and use this line as a benchmark to know the distance from the outer wall of the other pulley. How far the lines are, just adjust the distance. However, it is best to use the main shaft wheel as the guide for pulling the wire, because based on my many years of experience, most of the time it is the motor wheel that is offset. Find a relatively straight and long iron plate, preferably slightly longer than the center distance between the two pulleys. Clip this long iron plate onto the spindle wheel. Use this plate as a benchmark to adjust the motor wheel. Safety operating procedures for fan belt replacement Prerequisites for belt replacement: After the fan belt has been correctly adjusted, the belt tightness is inconsistent. The belt has cracks or has broken. The fan belt is severely worn and is obviously losing rotation. Belt replacement operation: Before replacing the fan belt, turn off the power and wait for the fan to stop before proceeding. Two people are required to replace the belt, and a certain amount of light intensity must be maintained at the site (usually using running lights, strong flashlights, etc.). Use a suitable ring wrench or open-end wrench (a ring wrench is preferred) to loosen the four positioning bolts on the motor base. Loosen the fixing device of the adjusting jackscrew near the wind wheel side of the motor, adjust the adjusting jackscrew on the motor cooler side, and try to reduce the distance between the fan pulley and the motor pulley (if the distance between the pulleys is not small enough at one time, you can Move the adjustment device on the motor surface cooler side forward and continue adjusting until it is suitable). If there are two motor belts, remove the outer belt outward and remove it from the smaller pulley. To remove, use the inside of three fingers of one hand to gently stroke the underside of the belt, then apply force outwards and turn the belt clockwise to remove. Remove the inner belt inwardly.
What does fan D-type transmission mean?
A fan with high power does not necessarily have a large air volume. Because the fan has several main parameters, power, air volume, wind pressure, and speed. When the speed and wind pressure remain unchanged, the rated air volume is fixed, and it is useless no matter how high the power is. The air volume depends on the speed of the fan, the structure of the fan, related to the resistance of the pipeline.
Fan is the customary abbreviation for gas compression and gas transportation machinery in China. Fans commonly include ventilators, blowers, and wind turbines. Gas compression and gas transportation machinery is a machine that converts rotating mechanical energy into gas pressure energy and kinetic energy, and transports the gas out.
The main structural components of the fan are the impeller, casing, air inlet, bracket, motor, pulley, coupling, muffler, transmission parts (bearings), etc.
Fan transmission modes: There are four types: A, C, D, and E. 1. Type A, directly driven by the motor, and the impeller and casing of the fan are directly fixed on the motor shaft and flange; 2. Type C, using a cantilever support device and belt transmission; 3. Type D, using a cantilever The supporting device adopts coupling transmission mode; 4. E type adopts double suction transmission mode.