Reducer installation and use of the eight points to note

Release time:

2024-04-23

Reducer installation and use of the eight points to note

The speed ratio of planetary reducer has different efficiencies. Output torque = input power * 9549/input speed * transmission ratio * efficiency. Helical gears can be regarded as cylindrical gears arranged by a group of thin-plate gears with appropriate teeth. In this way, the contact of each piece is at different parts of the tooth profile, thus producing the effect of compensating the error of each thin-plate gear. This compensation effect is very effective due to the elasticity of the gear teeth, thus obtaining such a result, A tooth with an error within 10mm can average the error, so that it can run smoothly under load as a tooth with an error within 1mm. Because at any instant in time, about half of the time (assuming an overlap of about 1.5) there will be two teeth meshing, this brings an additional benefit in terms of strength. Thus the stress may be based on 1.5 times the tooth width rather than one tooth width.

Helical gears increase the contact ratio, so that the performance of the planetary reducer can be improved. Contact ratio refers to the number of gear teeth engaged at any given time. The typical contact ratio of spur gears is 1.5, while the contact ratio of helical gears can be doubled to 3.3. It can be obtained by increasing the contact ratio of the helical gear: Compared with the spur gear type planetary reducer, the torque is increased by 30% to more than 50%

Increase load sharing to extend service life

Smooth and quiet operation

Reduces backlash by 2 arc-min

Single-stage planetary gear reducers can provide gear ratios between 3:1 and 10:1. The gear ratio cannot be higher than 10:1 because the size of the pinion cannot be further reduced. The gear ratio cannot be lower than 3:1, otherwise the size of the pinion gear and the external gear are almost the same, and there is no space to arrange the planetary gears. Gear ratios between 4:1 and 8:1 provide optimal pinion and planetary gear sizes, improving performance and extending life. Gear ratios greater than 10:1 can be obtained by adding a second stage of planetary gears, but this usually increases the length and cost of the reducer.