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The Function and Usage of Gearboxes
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A gearbox (also called transmission) provides speed and torque conversions from a rotating power source to another device using gear ratios. It can be used in various situations such as fixed machines, pedal bicycles, and anywhere else rotational speed and torque needs to be adapted. But the most common place is in motor vehicles, where the gearbox adapts the output of the internal combustion engine to the drive wheels. Because these engines need to be operated at a relatively high rotational speed, they can not be used in many operations such as starting or stopping.
As gearboxes are so widely used in motor vehicles, it is obvious that they must be largely used in cars. With the development of our economy, more and more cars are consumed, as a result, gearboxes are playing more important role in our daily life. Although many people have cars, few of them have the knowledge of how a car works, let alone the relationship between different mechanical components. Since car gearboxes are the fundamental parts for its working process, it is a wise decision for car owners to learn something about gearboxes.
In cars, the gearbox will generally be connected to the crankshaft of the engine. And the output of the transmission is transmitted via driveshaft to one or more differentials, which in turn drive the wheels. The gearbox converts engine speed into torque which will push the car forward. It is the main job of the gearbox. There is some difference between manual cars and automatic cars. For example, in a manual car, when the driver depresses the clutch, the gear will be disengaged from its original position so that it can slide up and down the gearbox, while automatic gearboxes are the opposite.
As the main task of the gearbox is to convert engine speed to torque so as to push the car forward, it is indispensable for your car. Your car will not be going anywhere if it lacks the gearbox. As a result, you should pay more attention to the gearboxes. Since we are talking about gearboxes, it is necessary to mention the gear ratios. Commonly, a gearbox will have multiple gear ratios, with the ability to switch between them as speed varies. And this switch may be done manually or automatically.
There is no doubt that gearboxes can be used in many other places except in cars. But no matter where they are used, these transmissions share an important feature, i.e. the gear ratio cannot be changed during the usage. It is because the gear ratio is fixed at the time the transmission is set.
All in all, there is more knowledge about gearboxes and their functions. It is advisable that you should have some basic knowledge of gearboxes. Maybe it will be helpful in your future life.
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Source by Lou Lingling
