Reduce the center distance of the belt pulley. If there is a tension pulley, loosen it first, and then adjust the center distance after installing the belt. For the drive with fixed center distance, remove the pulley first, install the belt on the pulley, and then install the pulley on the shaft for fixation.
The following points should also be noted during installation:
① When installing the synchronous belt, if the center distance between the two pulleys can be moved, the center distance between the pulleys must be shortened first, and then reset the center distance after installing the synchronous belt. If there is a tensioning wheel, first loosen the tensioning wheel, then install the timing belt, and then install the tensioning wheel.
② When installing the timing belt on the pulley, remember not to use too much force or use a screwdriver to pry the timing belt hard to prevent the tensile layer in the timing belt from breaking off imperceptibly. When designing the pulley, it is better to select a structure where the two shafts can move close to each other. If the structure does not allow it, it is better to install the synchronous belt and pulley together on the corresponding shaft.
③ Control the appropriate initial tension.
④ In the synchronous belt drive, the parallelism of the axes of the two pulleys is required to be relatively high, otherwise the synchronous belt will deflect or even jump out of the pulley during operation. The non parallel axis will also cause uneven pressure and early wear of belt teeth.
⑤ The frame supporting the pulley must have enough rigidity, otherwise the pulley will cause the two axes to be out of parallel when the password lock is running
