Planetary gear ratio of different efficiency, the output torque of the input power input speed = *9549/ * * efficiency ratio, helical gear can be regarded as the cylindrical gear is composed of a set of sheets to gear misplaced into, so that each piece is in contact with the different parts of the tooth profile, resulting in compensation each sheet gear error function, the compensation due to tooth elastic and very effective, and thus conclude the results, the error can make errors on average within 10mm of the tooth, so the load cases, as for 1mm error in the smooth running of the tooth. Because in any instantaneous, about half of the time (if the coincidence degree of about 1.5) will have two teeth meshing, which in terms of strength to bring additional benefits. Therefore the stress can be established on the basis of 1.5 times the width of the tooth rather than a tooth width.
The helical gear increases the contact ratio, so that the performance of the planetary gear reducer can be improved. The contact ratio refers to the number of gear teeth meshing at any given time. A typical contact spur gear ratio is 1.5, and the contact ratio of helical gear doubled to 3.3. By increasing the contact ratio of gear: compared with spur gear planetary reducer, torque increase 30% to more than 50%
Increasing the load sharing degree, so as to prolong the service life
Smooth and quiet
Reduce the back gap of 2 arc-min
Single stage planetary gear reducer can provide gear ratio between 3:1 to 10:1. Gear ratio can not be higher than 10:1 is because the size of the small gear can not be further reduced. Gear ratio can not be less than 3:1, otherwise the small gear and outer gear size is almost the same, there is no space to decorate the planetary gear. The gear ratio between 8:1 and 4:1 can provide the best size of pinion and planetary gear, improve the performance and extend the life span. More than 10:1 to get through the gear ratio increased second planetary gear, but it will usually increase the length and cost of reducer.
Dongguan luerte Machinery Equipment Co., Ltd. was founded in 2005, the main products are: planetary gear, cam, linear module, linear guide, ball screw rod, a supporting seat, a gear rack, linear bearing and linear motion series products. Its products are widely used in machine manufacturing, laser cutting, semiconductor industry, medical equipment, packaging and industrial automation, automobile manufacturing, can let you in the manufacturing industry to effectively reduce the product cost and improve the competitiveness of products.
