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Selection Principle of Gear and Worm Drive

Categories: FAQRelease time: 2015-05-21 14:32:00
Source: ZHAOWEIEditor: ZHAOWEI Author: ZHAOWEI

 Due to large worm drive meshing friction, turbine hob is difficult to accurately backoff the reason such as the size and shape error, so that the machining turbine gear tooth surface is difficult to and the worm tooth surface match completely meet the requirements of symbol theory of conjugate condition. So the worm and worm gear tooth on the material combination should have already wear resistance and good running performance.Specific selection principle is as follows:

(1) Worm materials generally made of alloy steel or high quality carbon steel, and worm gear tooth surface by carburizing, quenching and nitriding heat treatment and high hardness, its hardness is generally between 35 and 55 HRC, but also has more than 60 HRC.

(2) Centrifugal casting, the second is to use metal mould casting, no sand mold casting as far as possible.

(3) In the relative sliding velocity of 4 m/s or less occasions, also can use aluminum bronze and cast iron, the disadvantage is that the running-in performance agglutination performance is poorer, the relative sliding speed 2 m/s or less and less important occasions, or use grey cast iron or nodular cast iron, cast and the latter is better than the former.

The above content "in gear transmission design manual" chemical industry press.

ZHAOWEI mechanical and electrical through twelve years in the field of gear and gear box professional design, development, production, through the comparison of industry and a lot of experiment data design developed planetary gear box, gear box, micro gear motor, planetary gear motor, dc gear motor, reduction gear motor, gear motor, reduction gear motor.

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