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 mounting 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 set 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 the drive shaft and the output shaft can be reversed. The entire multiplication element of multi-stage gearboxes is usually calculated by multiplying the ratio of every gear stage.
The drive speed is reduced or increased by the factor of the apparatus ratio, depending on whether it is a ratio to sluggish or a ratio to fast. In nearly all applications ratio to slow is required, since the drive torque is usually multiplied by the overall multiplication element, unlike the drive quickness.
A multi-stage spur gear can 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 small. This has a poor influence on the tooth geometry and the torque that’s getting 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 basically increasing the space of the ring equipment and with serial arrangement of several individual planet phases. A planetary gear with a ratio of 20:1 could be manufactured from the average person ratios of 5:1 and 4:1, for instance. Rather than the drive shaft the planetary carrier contains the sun gear, which drives the following world stage. A three-stage gearbox can be obtained by way of increasing the length of the ring equipment and adding another world stage. A transmitting ratio of 100:1 is obtained using individual ratios of 5:1, 5:1 and 4:1. Basically, all person ratios could be combined, which outcomes in a big number of ratio choices for multi-stage planetary gearboxes. The transmittable torque can be increased using additional planetary gears when carrying out this. The direction of rotation of the drive shaft and the result shaft is constantly the same, so long as the ring gear or casing is fixed.
As the amount of equipment stages increases, the efficiency of the overall gearbox is decreased. With a ratio of 100:1 the effectiveness is leaner than with a ratio of 20:1. In order to counteract this situation, the fact that the power loss of the drive stage can be low should be taken into concern when using multi-stage gearboxes. This is attained by reducing gearbox seal friction reduction or having a drive stage that is geometrically smaller, for example. This also decreases the mass inertia, which is usually advantageous in dynamic applications. Single-stage planetary gearboxes are the most efficient.
Multi-stage gearboxes can also be realized by combining various kinds of teeth. With a right angle gearbox a bevel gear and a planetary gearbox are simply combined. Here as well the entire multiplication factor may be the product of the individual ratios. Depending on the kind of gearing and the kind of bevel equipment stage, the drive and the output can rotate in the same direction.
Benefits of multi-stage gearboxes:
· Wide range of ratios
· Constant concentricity with planetary gears
· Compact style with high transmission ratios
· Combination of different gearbox types possible
· Wide selection of uses