How To Embody The Self-Locking Function In The Worm Gear Reducer ？
- By:SW Drive
1、 Worm gear reducer has self-locking function :
Worm gear reducer is a form of transmission equipment with a compact structure, massive transmission ratio and self-locking feature below positive conditions. It is one of the most frequently used reducers. Among them, the hollow shaft worm gear reducer not only has the above characteristics, but also has convenient installation and reasonable structure, and is more and more widely used. The hollow shaft worm gear reducer is equipped with a helical gear reducer at the input end of the worm gear reducer. The multi-stage reducer can obtain very low output speed and has higher efficiency than the pure single-stage worm gear reducer. Moreover, it has the advantages of low vibration, low noise and low energy consumption.
2、 Rotation direction law of worm gear :
The rotation direction of the worm and the worm gear is similar to that of the screw drive. The worm is equivalent to the screw and the worm gear is equivalent to the nut. The difference is that the nut can move in a straight line, while the worm gear can only rotate. This is a right-hand worm (right-hand rotation is more commonly used). If it rotates in the direction of the hollow arrow (clockwise when viewed from the left end of the worm axis), when the worm cannot move axially, the "nut" of the worm gear can only move to the left, that is, the worm gear should rotate clockwise. Using the "right-hand rule" is also very simple. When the high precision worm gear is a right-hand thread, the bending direction of the four fingers of the right hand represents the rotation direction of the worm, and the rotation direction of the worm gear is opposite to that of the thumb. For the left-hand worm, use the "left-hand rule"
In worm drive, when the worm rotates, it will be subjected to greater axial force. The direction of axial force is related to the rotation direction of the worm and thread. The direction of axial force can also be judged by the "right-hand rule" or "left-hand rule". When judging, the direction of the thumb in the direction of the axial force on the worm. When distinguishing, the direction of the thumb in the direction of the axial force on the worm. In order to counteract the axial force of the worm and prevent the worm from moving axially, thrust bearings or other axial support structures shall be installed.
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