Disadvantages of multi-stage gearboxes (compared to single-stage gearboxes):
· More complex design
· Lower amount 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 couple of gears forms a gear stage. In the event that you connect several equipment pairs one after another, this is known as a multi-stage gearbox. For each gear stage, the direction of rotation between your drive shaft and the result shaft is definitely reversed. The overall multiplication factor of multi-stage gearboxes is calculated by multiplying the ratio of each gear stage.
The drive speed is reduced or increased by the factor of the gear ratio, depending on whether it’s a ratio to slower or a ratio to fast. In nearly all applications ratio to sluggish is required, because the drive torque can be multiplied by the entire multiplication factor, unlike the drive speed.
A multi-stage spur gear could be realized in a technically meaningful way up to gear ratio of around 10:1. The reason for this lies in the ratio of the amount of tooth. From a ratio of 10:1 the driving gearwheel is extremely little. This has a negative effect on the tooth geometry and the torque that is being transmitted. With planetary gears a multi-stage gearbox is incredibly easy to realize.
A two-stage gearbox or a three-stage gearbox may be accomplished by simply increasing the space of the ring equipment and with serial arrangement of several individual planet levels. A planetary gear with a ratio of 20:1 could be manufactured from the average person ratios of 5:1 and 4:1, for example. Instead of the drive shaft the planetary carrier contains the sun equipment, which drives the following planet stage. A three-stage gearbox can be obtained by means of increasing the space of the ring equipment and adding another world stage. A transmitting ratio of 100:1 is obtained using person ratios of 5:1, 5:1 and 4:1. Basically, all individual ratios could be combined, which outcomes in a sizable number of ratio options for multi-stage planetary gearboxes. The transmittable torque could be increased using additional planetary gears when carrying out this. The direction of rotation of the drive shaft and the result shaft is at all times the same, so long as the ring equipment or housing is fixed.
As the number of gear stages increases, the efficiency of the overall gearbox is reduced. With a ratio of 100:1 the efficiency is lower than with a ratio of 20:1. In order to counteract this circumstance, the actual fact that the power lack of the drive stage is usually low must be taken into thought when using multi-stage gearboxes. That is achieved by reducing gearbox seal friction reduction or having a drive stage that’s geometrically smaller, for example. This also reduces the mass inertia, which can be advantageous in dynamic applications. Single-stage planetary gearboxes are the most efficient.
Multi-stage gearboxes may also be realized by combining various kinds of teeth. With a right angle gearbox a bevel gear and a planetary gearbox are simply just combined. Here too the entire multiplication factor may be the product of the individual ratios. Depending on the type of gearing and the type of bevel gear stage, the drive and the output can rotate in the same path.
Advantages of multi-stage gearboxes:
· Wide range of ratios
· Continuous concentricity with planetary gears
· Compact style with high transmission ratios
· Mixture of different gearbox types possible
· Wide range of uses