The main difference and characteristics are that the transmission ratio of the worm gear is large, and the transmission ratio of the belt is small; the worm gear transmission is vertical transmission, and the belt transmission is parallel transmission; the torque of the worm gear transmission is small, and the transmission distance of the belt is large; ; The structure of the worm gear is more complicated and the cost is higher.
The worm gear transmission of the reducer has the following characteristics:
1. Self-locking.When the helix angle of the worm is small, the worm can only drive the worm wheel, but the worm wheel cannot drive the worm to rotate.
2. The efficiency of worm transmission is low. It is generally believed that the efficiency of worm transmission is lower than that of gear transmission.Especially the efficiency of self-locking worm drive is below 0.5, and the general efficiency is only 0.7~0.9.
3. The calorific value is large, the tooth surface is easy to wear, and the cost is high.
4. Large transmission ratio and compact structure.
5. The transmission is stable and noiseless.Because the worm gear is a continuous helical gear, it is continuous when meshing with the worm gear.The worm gear does not enter or exit the meshing process, it works smoothly, and the impact, vibration and noise are small.
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