Problems in belt drives
Thread Content
Recently I built a fermentation tank. A C-type V-belt is used between the motor and the main shaft. There are 12 belts in total. The motor is installed vertically and controlled by frequency conversion. No exceptions occurred during equipment debugging, but the following problems occurred when running with materials: When the speed increases, the belt vibrates and flips, moving from the previous groove to the next, and the last belt actually falls down. After stopping the machine and reattaching and tightening the belt, there was still no improvement. Finally, the installation conditions and relevant dimensions of the pulley were measured. The data are as follows:: The motor pulley is 3mm higher than the spindle pulley ； The minimum groove width of C-type belt is 22.3mm, and the actual measurement is 21.3mm ； The measured groove depth is 22mm, which is slightly deeper than the minimum depth. ； The slot spacing basically meets the requirements. I originally thought that there would be no problem if there was a slight error in the belt transmission, but it turned out that the transmission failed. Now that we have removed the pulley for repair, please analyze the main cause of the problem?
Re-adjust the motor pulley and spindle pulley so that the two pulleys are at the same level and tighten the triangle belt slightly.
The motor pulley is 3mm higher than the spindle pulley, which should be the main reason for belt loss. They should be adjusted to the same level. More attention should be paid to vertical installation.
The driving shaft and driven shaft are leveled
A deviation of 3mm between the two pulleys has little effect on the belt transmission. The angle and groove distance of the pulley grooves are very important. examine: 1. Whether the angle of the pulley groove meets the standard. 2. Whether the width and depth of each groove of the pulley are consistent. 3. Whether the groove pitch of the two pulleys is the same.
No abnormalities occurred during equipment debugging, but the above problems occurred when the belt was running. Recalculate the load of the belt.
1. Please check whether the pulley is on a flat surface. 2. Check whether the groove depth and groove width are consistent. 3. Check whether the groove pitch of the two pulleys is consistent. 4. Check whether the angle of the pulley groove is qualified.