Disadvantages of multi-stage gearboxes (in comparison to single-stage gearboxes):
· More complex design
· Lower degree of efficiency
UP TO 2320
1400rpm or other
Place of Origin:
RAL9006(grey) OR RAL5010(blue)
IEC flange for installation motor
1 year after vessel date
Solid or Hollow shaft,flange output
Quality Control System:
Special Design Widely Used Cyclo Gearbox
With single spur gears, a pair of gears forms a gear stage. If you connect several gear pairs one after another, this is known as a multi-stage gearbox. For every gear stage, the direction of rotation between your drive shaft and the result shaft is certainly reversed. The overall multiplication factor of multi-stage gearboxes is usually calculated by multiplying the ratio of each gear stage.
The drive speed is reduced or increased by the factor of the apparatus ratio, depending on whether it’s a ratio to gradual or a ratio to fast. In the majority of applications ratio to slow is required, since the drive torque is definitely multiplied by the overall multiplication factor, unlike the drive rate.
A multi-stage spur gear could be realized in a technically meaningful way up to a gear ratio of approximately 10:1. The reason behind this lies in the ratio of the amount of the teeth. From a ratio of 10:1 the driving gearwheel is extremely little. This has a negative influence on the tooth geometry and the torque that is becoming transmitted. With planetary gears a multi-stage gearbox is extremely easy to realize.
A two-stage gearbox or a three-stage gearbox can be achieved by simply increasing the space of the ring gear and with serial arrangement of many individual planet stages. A planetary equipment with a ratio of 20:1 could be manufactured from the average person ratios of 5:1 and 4:1, for instance. Instead of the drive shaft the planetary carrier contains the sun equipment, which drives the next world stage. A three-stage gearbox is usually obtained by means of increasing the distance of the ring equipment and adding another planet stage. A transmitting ratio of 100:1 is obtained using person ratios of 5:1, 5:1 and 4:1. Basically, all person ratios could be combined, which results in a huge number of ratio choices for multi-stage planetary gearboxes. The transmittable torque could be increased using extra planetary gears when doing this. The direction of rotation of the drive shaft and the output shaft is at all times the same, provided that the ring gear or housing is fixed.
As the amount of equipment stages increases, the efficiency of the overall gearbox is decreased. With a ratio of 100:1 the efficiency is lower than with a ratio of 20:1. To be able to counteract this scenario, the fact that the power lack of the drive stage is definitely low should be taken into account when working with multi-stage gearboxes. This is attained by reducing gearbox seal friction loss or having a drive stage that is geometrically smaller, for instance. This also decreases the mass inertia, which is advantageous in powerful applications. Single-stage planetary gearboxes will be the most efficient.
Multi-stage gearboxes may also be realized by combining different types of teeth. With a right position gearbox a bevel gear and a planetary gearbox are simply just combined. Here too the entire multiplication factor may be the product of the average person ratios. Depending on the kind of gearing and the kind of bevel equipment stage, the drive and the result can rotate in the same direction.
Advantages of multi-stage gearboxes:
· Wide selection of ratios
· Constant concentricity with planetary gears
· Compact style with high transmission ratios
· Combination of different gearbox types possible
· Wide selection of uses