Advantages and disadvantages of belt drive
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Advantages and disadvantages of belt drive

Views: 0     Author: Uliflex     Publish Time: 2024-07-17      Origin: Site

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Advantages and disadvantages of belt drive

The advantages of belt drive are:

1. Quiet and smooth operation: suitable for transmission occasions where the center distance between two axes is large.

2. With cushioning and vibration absorption function: the belt has good elasticity, which can stably cushion and absorb vibration in the transmission process.

3. Overload protection: If overload is encountered during work, the belt will slip on the pulley, thus preventing damage to weak parts and providing safety protection.4. Low requirements for manufacturing and installation accuracy: low cost, simple structure, simple manufacturing, low cost, no need for lubrication, buffering, shock absorption, easy installation and maintenance, etc.

5. Suitable for long-distance transmission (amax=15m): The belt is an intermediate part, and the length can be selected according to the needs within a certain range to meet the requirements of large center distance.



The disadvantages of belt drive are:

1. Elastic sliding makes the transmission ratio i not constant: it is driven by friction and cannot transmit high power. There is slippage in the transmission, which cannot guarantee an accurate transmission ratio.

2. Sliding loss: When the belt is in operation, elastic sliding occurs due to the difference in tension between the two sides of the pulley and the corresponding difference in deformation, resulting in a loss of speed between the pulley and the drive pulley. Elastic sliding is related to load, speed, pulley diameter and belt construction. Some belt drives also experience geometric slippage. Overloading can lead to slippage, which puts the belt movement in an unstable state, sharply decreasing efficiency and increasing wear, seriously affecting belt life.

3. Lagging loss: the belt will repeatedly stretch during operation, especially the part around the pulley will cause friction inside the belt, resulting in power loss.

4. Air resistance: In high-speed transmission, the wind resistance in the movement will lead to torque loss, and the loss value is proportional to the square of the speed. Therefore, when designing a high-speed belt drive, the surface area of the belt should be made small, thick and narrow belts should be used as much as possible, and the spoke surfaces of the pulleys should be smooth, or spokes should be used to reduce wind resistance.


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