Machining small Worm And Worm With High Precision CNC Milling Machine

The worm gear is usually made of wear-resistant tin bronze, which is soft and has lubricating effect, which is conducive to

reducing friction. Generally, the material of worm is harder than that of worm gear. The worm gear is a passive wheel, and the

worm is an active wheel. In case that the equipment fails to rotate, the electric machine can protect the motor from being

burned by the soft worm. The motor continues to work turn.

Product features

Characteristics of worm gear

1. A large transmission ratio can be obtained, which is more compact than the staggered shaft helical gear mechanism.

2. There is line contact between the meshing tooth surfaces of the two wheels, and its bearing capacity is much higher than that of the cross axis helical gear mechanism.

3. Worm drive is equivalent to screw drive, which is multi tooth meshing drive, so the drive is stable and the noise is very small.

4. It is self-locking. When the lead angle of the worm is less than the equivalent friction angle between the meshing teeth, the

mechanism has self-locking property, which can realize reverse self-locking, that is, only the worm can drive the worm gear,

Instead of worm driven by worm gear. Such as the self-locking worm mechanism used in lifting machinery, its reverse self-

locking can play a role of safety protection.

5. The transmission efficiency is low and the wear is serious. When the worm gear is meshed, the relative sliding speed

between the meshing teeth is large, so the friction loss is large and the efficiency is low. on the other hand,

The relative sliding speed makes the tooth surface seriously worn and heated. In order to dissipate heat and reduce wear,

expensive materials with good antifriction and wear resistance and good lubricating devices are often used,

So the cost is high.

6. The axial force of worm is large. Worm gear and worm mechanism are often used in the situation of interleaving two shafts,

large transmission ratio, small transmission power or intermittent operation.

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