Design of Two Stage Reduction gearbox for Baja atv

 

TWO STAGE REDUCTION GEARBOX

REDUCTION GEARBOX:

A reduction gearbox is a device by which an input speed can be lowered for a requirement of slower output speed, with same or more output torque. Reduction gear assembly consists of a set of rotating gears connected to an output shaft. The high-speed incoming motion from the wheel work is transmitted to the set of rotating gears, wherein the motion or torque is changed. The number of gears used in the reduction gear assembly depends on the output speed requirement of the application. The reduction gear assembly is usually known as reduction gear box. Depending on the Output speed required, the reduction may have single stage or two stage reduction. 

TYPES OF REDUCTION GEARBOX:

There are mainly two types of reduction gears:

•  Single reduction gear
•  Double reduction gear

In this design i used double reduction gearbox

COMPONENTS OF A GEARBOX: 

A Gearbox comprises of major components namely: 

• Casing 
• Gears 
• Shafts
• Bearings

CAD MODEL 

• I used  Solidworks to create this model 

                          

Exploded view of the gearbox

Assembly of the  gearbox

GEAR RATIO CALCULATION:

              

So that  ratio for the gearbox  is   8:1

MOTION STUDY 

A rotary motor  feature is used  for the input shaft  for animation