皮带轮传动的优点有:皮带轮传动能缓和载荷冲击;皮带轮传动运行平稳、低噪音、低振动;皮带轮传动的结构简单，调整方便;皮带轮传动对于皮带轮的制造和安装精度不像啮合传动严格;皮带轮传动具有过载保护的功能;皮带轮传动的两轴中心距调节范围较大。皮带传动的缺点有:皮带轮传动有弹性滑动和打滑，传动效率较低和不能保持准确的传动比;皮带轮传动传递同样大的圆周力时，轮廓尺寸和轴上压力比啮合传动大;皮带轮传动皮带的寿命较短。各类机械设备的皮带轮的直径等尺寸都是自己皮带轮皮带轮根据减速比配的，根据工作转速与电机的转速自己设计。 工作转速/电机转速=主动轮直径/从动轮直径*0.98(滑动系数)，如使用钢为材料的皮带轮,要求线速度不高于40m/s,如使用铸铁的材料,要求线速度不高于35m/s，电机转速与皮带轮直径换算比，速度比=输出转速:输入转速=负载皮带轮节圆直径:电机皮带轮节圆直径。节圆直径和基准直径是一样的，直径-2h=节圆直径，h是基准线上槽深，不同型号的V带h是不一样的，Y Z A B C D E，基准线上槽深分别为h=1.6 2 2.75 3.5 4.8 8.1 9.6。皮带轮节圆直径就是皮带轮节线位置理论直径,有点像齿轮的分度圆直径.一般用PD表示,外圆一般用OD表示.不同的槽型节圆与外圆的换算公式不一样,一般我们比较容易测量到皮带轮的外圆,在根据公式计算出节圆.SPZ:OD=PD+4;SPA:OD=PD+5.5;SPB:OD=PD+7;SPC:OD=PD+9.6。A或SPA的带轮最小外径尺寸为80mm，如小于该尺寸，特别是在高速的情况下，皮带容易出现分层及底部出现裂纹等毛病。SPZ带，小轮不小于63mm即可。同时要注意皮带安装的手法及张力，过小易打滑，过大易损坏皮带与轴承。
The advantages of the belt pulley drive are: the belt pulley transmits kinetic energy to ease the impact of load; the belt pulley drive runs smoothly, with low noise and low vibration; the structure of the belt pulley drive is simple and easy to adjust; the manufacturing and installation accuracy of the belt pulley drive is not as strict as the meshing drive; the belt pulley drive has the function of overload protection; the adjustment range of the two axis center distance of the belt pulley drive is large. The disadvantages of belt drive are as follows: the belt pulley drive has elastic sliding and slipping, the transmission efficiency is low and the accurate transmission ratio can not be maintained; when the belt pulley drive transmits the same large circumferential force, the profile size and shaft pressure are larger than the meshing drive; the service life of the belt driven by the belt pulley is short. All kinds of mechanical equipment pulley diameter and other dimensions are their own pulley, pulley according to the deceleration ratio, according to the working speed and motor speed design. Working speed / motor speed = diameter of driving pulley / diameter of driven pulley * 0.98 (sliding coefficient). If steel pulley is used, the linear speed shall not be higher than 40m / S; if cast iron pulley is used, the linear speed shall not be higher than 35m / s. conversion ratio between motor speed and pulley diameter: speed ratio = output speed: input speed = pitch circle diameter of load pulley: pitch circle diameter of motor pulley. The pitch diameter and the datum diameter are the same, diameter - 2H = pitch diameter, h is the groove depth on the datum line, different types of V-belt h are different, yzab CDE, the groove depth on the datum line are h = 1.62 2.7126.96.36.199.6 respectively. The pitch circle diameter of the belt pulley is the theoretical diameter of the pitch line position of the belt pulley, which is a bit like the pitch circle diameter of the gear. It is generally expressed by PD, and the outer circle is generally expressed by OD. The conversion formula between pitch circle and outer circle of different groove types is different. Generally, it is easier for us to measure the outer circle of the belt pulley, and calculate the pitch circle according to the formula SPZ:OD=PD+4;SPA :OD=PD+5.5; SPB:OD=PD+7;SPC :OD=PD+9.6。 The minimum outer diameter of a or spa pulley is 80mm. If it is smaller than this size, especially at high speed, the belt is prone to delamination and crack at the bottom. SPZ belt, small wheel no less than 63mm. At the same time, pay attention to the installation method and tension of the belt, too small is easy to slip, too large is easy to damage the belt and bearing。
The above content is organized and provided by Taizhou Jiaojiang Jingyi Machinery Factory. It is a comprehensive enterprise specializing in the production and sale of various belt pulleys, hand wheels, pulleys, couplings and other transmission machinery accessories. It covers an area of more than 10,000 square meters, has 30 years of production history, large-scale production, and rich experience in technical staff. Designers can design, process and produce various types and specifications of products and castings from 40mm to 1500mm according to the drawings provided by customers or related data of conventional models. The raw materials used in our factory are all standard qualified alloys. The products have excellent craftsmanship, long service life, high movement precision, convenient disassembly and assembly, and can effectively improve the quality of the whole machine. Many domestic and foreign manufacturers and merchants have sent large quantities to our factory. order.