The tooth type and pitch of the synchronous pulley are the same as those of the synchronous belt, and only the number of teeth (or diameter) and structure need to be determined; there are many structures of the synchronous pulley, which can be divided into flangeless (two The tooth part with baffles at the end) and the flanged one (there is a cylindrical flange outside the teeth with baffles at both ends); the number of teeth (or diameter) of the synchronous pulley first determine the number of teeth of the pinion, Then according to the transmission ratio to determine the number of teeth of the large gear. In order to ensure the service life of the synchronous belt, the diameter of the small synchronous pulley should be larger than the allowable smaller bending diameter, and then reduced to a smaller number of teeth; as long as the structure and cost are considered in the application of the synchronous belt, the tooth ratio of the small pulley is allowed After determining the number of teeth of the small pulley, the number of teeth of the large pulley can be determined according to the transmission ratio, and the intermediate distance between the two pulleys can be determined according to the structure. The length of the pitch line or the total number of teeth can be calculated from the pitch of the synchronous belt, thus completely determining the driving parameters of the synchronous wheel. The synchronous wheel has the advantages of uniform instantaneous change speed and high efficiency of the transmission system. Compared with the gear, the transmission speed ratio control range can be larger, the allowable line speed is high, the wheel base is large, the transmission and noise are low, the ratio of power to weight is large, and it is not. It needs to be lubricated, it is convenient to replace, the price is relatively low and it is widely used. The above is an introduction to the importance of the synchronous pulley model.
Post time: May-10-2022