How does a worm gear reducer work?
In a worm gear reducer, the gear is mounted on the output shaft at a 90- degree angle to the input shaft. This frees up both ends of the output shaft for more engineering design options. Moreover, both solid and hollow output shafts may be used with worm gear reducers.
What is worm gearing explain with diagram?
Basically, a worm gear is a screw butted up against what looks like a standard spur gear with slightly angled and curved teeth. It changes the rotational movement by 90 degrees, and the plane of movement also changes due to the position of the worm on the worm wheel (or simply “the wheel”).
How do you design a worm gear?
DESIGN PROCEDURE FOR WORM GEAR:
- Selection of the material:
- Calculation of teeth:
- Calculation of diameter factor and lead angle.
- Calculation of Tangential load:
- Calculate b, d2, v.
- Recalculation of beam strength.
- Calculate power loss and area:
- Calculate basic dimensions.
What is worm reducer?
A worm gear reducer is one type of reduction gear box which consists of a worm pinion input, an output worm gear, and features a right angle output orientation.
How do you work out worm gear ratios?
The ratio is equal to the number of gear teeth divided by the number of starts/threads on the worm. A comparable spur gear set with a ratio of 40:1 would require at least two stages of gearing. Worm gears can achieve ratios of more than 300:1.
How do you calculate worm gear reduction?
For a single-start worm, each full turn (360 degrees) of the worm advances the gear by one tooth. So a gear with 24 teeth will provide a gear reduction of 24:1. For a multi-start worm, the gear reduction equals the number of teeth on the gear, divided by the number of starts on the worm.
How do you find the pitch of a worm gear?
Circular pitch (CP) is a direct measurement of the distance from one tooth center to the adjacent tooth center. In a worm drive, it is called axial pitch and can be measured by the formula CP= Π ÷ DP.
How do you calculate worm gear ratio?
The ratio is equal to the number of gear teeth divided by the number of starts/threads on the worm.