An Overview Of Reducer Types And Gearbox Repairs
For power sources to produce useful work, their energy necessarily must be transmitted to a working implement of some sort. A transforming of rotational forces produced by a motor or engine, through modifying the speed, torque or rotational direction can produce an optimum force required for the work. Eventually all these mechanical devices will require Gearbox repairs.
This part, sometimes called a reducer, is used wherever a machine is required to run at a different output speed than the drive or engine speed. Differences in gear ratios result in changed speed and torque.
When a rotating input or drive gear, which is powered by the power source is meshed with a lager, output gear with more teeth, the rotational speed of that output gear will be slower, but a mechanical advantage of increased torque produced. An application of this is the automobile, where the engine produces many more rotations per minute than is seen at the wheel.
Other applications, like some larger wind turbines, have the opposite requirement. Design and structural requirements necessitate that the turbine’s blades turn at much slower speeds than the several thousands of revolutions per minute the generators require to produce electricity. The gearbox here increases the speed.
Often these transmission devices are quite complex. Multiple gears of a variety of sizes supply multiple output speed choices. An automobile transmission is the most common example of this. When first putting the car into motion, inertia must be overcome, requiring that the rotational energy produced by the engine be slowed while its torque increased, producing a mechanical advantage. This is accomplished through the use of an output gear having a greater circumference and more teeth than the input gear.
As the speed and momentum of the vehicle increases, there is less need for torque but more need for speed. Now successively smaller output gears will be put into use producing faster rotation at the wheels. For high speed cruising an overdrive gear may be available.
When steep hills are encountered the increase in gravitational force that needs to be overcome slows the vehicle. Now it becomes necessary to gear down once again to produce the torque required to carry the car over the hill. Trucks carrying heavy loads or towing have the same demands. When these same trucks are also climbing hills they have need of gearing with much different ratios than economy, or cruising vehicles.
Changes of rotational direction or angle may sometimes be required. An example of this is the rotor of a helicopter. A rotating vertical shaft here transmits energy from the engine to drive a rotor turning at right angles to that shaft.
These gearboxes and the components they are made up of will over time wear and eventually fail requiring Gearbox repairs. Skilled technicians can then determine the causes of failure through inspection and analysis of the parts. Damaged parts can be refurbished or repaired. They can be replaced with new or fabricated parts. The finished product should be expected go work exactly like the new device, or even better with improved performance or extended life with some adjustments.
Get the inside scoop on the different types of gear reducers and gearbox repairs now in our super guide to all you need to know about common gearbox problems
Tags: gearbox service, gearbox parts, auto