Pulley L034000000522 for Foton

Pulley transmission is widely used in places where power is transmitted over long distances, such as mining machinery, mechanical processing equipment, textile machinery, packaging machinery, lathes, and forging machines. This transmission method has the following advantages:

‌Mitigate load impact‌: It can effectively buffer the impact of external loads and protect mechanical parts from damage.

‌Smooth operation‌: The operation process is smooth, the noise and vibration generated are relatively low, and a comfortable working environment is provided.

‌Simple structure and convenient adjustment‌: The structural design is simple, the adjustment process is relatively easy, and it is convenient for daily maintenance.

‌Manufacturing and installation precision requirements are not high‌: Compared with meshing transmission, pulley transmission has lower requirements for the manufacturing and installation precision of pulleys, which reduces the manufacturing difficulty.

‌Overload protection function‌: In the case of overload, the pulley transmission can automatically slip, which plays a role in protecting mechanical parts.

‌Large center distance adjustment range‌: The adjustment range of the center distance of the two axes is wide, which can meet different installation requirements.

However, pulley transmission also has some shortcomings:

‌Slightly low transmission efficiency‌: Due to the friction loss, the transmission efficiency of pulley transmission is relatively low.

‌Regular maintenance required‌: The belt needs to be inspected and replaced regularly to ensure the reliability of the transmission.

There are two transmission methods at present. One is hard connection, which is to connect the motor and the equipment through the coupling, and the other is belt drive. So what are the advantages of belt drive?

The advantages of pulley drive are: pulley drive can alleviate load impact; pulley drive runs smoothly, with low noise and low vibration; pulley drive has a simple structure and is easy to adjust; pulley drive is not as strict as meshing drive in terms of manufacturing and installation accuracy; pulley drive has overload protection function; pulley drive has a large adjustment range of the center distance between the two axes. Belt drive is a mechanical transmission that relies on friction to transmit motion and power. Its advantages are mainly reflected in the elasticity of the belt. It can alleviate impact and vibration during work, and the movement is smooth and the noise is very small. If the overloaded belt slips on the pulley, it will not cause damage to important parts such as the motor or equipment, which plays a role in safety protection and equipment protection to a certain extent. At the same time, the belt is also an accessory. It can select the length according to the needs within a certain range to adapt to working conditions with large center distance requirements. The structure is simple, easy to manufacture, easy to install and maintain, and low cost.

There are always pros and cons. We have talked about the advantages of belt transmission above. Now let's talk about the disadvantages of pulley transmission. The transmission of the pulley relies on friction to complete the transmission, and it cannot transmit ultra-high power motors. Because it will slip during operation and cannot maintain an accurate transmission ratio, this condition leads to a lower transmission efficiency than the coupling transmission efficiency. Pulley transmission has elastic sliding and slipping, low transmission efficiency and cannot maintain an accurate transmission ratio; when the pulley transmission transmits the same large circumferential force, the outline size and shaft pressure are larger than the meshing transmission; the life of the pulley transmission belt is shorter.