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Structural characteristics and locking ability of worm gear reducer

Views:0     Author:WeiGao Transmission     Publish Time: 2021-09-27      Origin:WeiGao Transmission

Structural characteristics and locking ability of worm gear reducer

The composition and characteristics of worm gear reducer, including the locking characteristics, are analyzed and explained in a small series.
In fact, for many large equipment, planetary gear reducers are often used. If there is a worm in the reducer, there will be a worm gear, so the worm gear reducer is only a colloquial title for the worm gear reducer. However, generally speaking, we prefer to call the worm gear reducer a worm gear reducer.
The following is a brief description of some characteristics of worm gear reducer:
In order to obtain a larger transmission ratio, the closely connected tooth surfaces of the two wheels relative to the helical gear arrangement of the interleaving shaft overlap and touch, so that the load can exceed the helical gear arrangement of the interleaving shaft.
The worm transmission of worm gear reducer is simply spiral transmission, which is multi tooth meshing transmission, so the transmission is stable, the noise is relatively small, and has the ability of self-locking. When the lead angle of the worm is less than the equivalent between the meshing teeth and there is a conflict, the arrangement also has self-locking ability, which can complete the reverse self-locking, and can only drive the worm gear through the worm, not through the worm gear. Just like the self-locking worm arrangement used in heavy machinery, its reverse self-locking ability can complete the effectiveness of maintenance.
When the transmission efficiency of worm gear reducer is relatively low, the friction is more serious. In the process of worm gear and worm bite for transmission, the sliding is relatively fast, so the loss is relatively large and the energy efficiency is relatively weak.
In addition, the relatively high sliding speed leads to serious tooth surface friction and constant heating. In order to prevent heating and reduce the loss caused by friction, materials with higher price, better friction reduction performance and better anti friction ability and materials with advantages in lubrication are often selected, but the cost is high.
The characteristics and locking analysis of worm gear reducer are probably as above. For reducer, we also need to recognize its characteristics before we can start to use it.

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