jackymechanical

Gearboxes are important in power transmission system. A gearbox is also called transmission. And it 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.

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.

An automatic gearbox, of course, also plays a crucial role in many places. How does it work? Its performance may involve a lot of components. Among all those parts, the planetary gearsets, torque converter, and sensors and shifting are the most important.

The planetary gearset is a set of gears to which the transmission shaft is linked. It usually includes several separate parts. The outside gears differ in size, creating unique gear ratios. These are the gear combinations used when the vehicle shifts. When the transmission shifts into first, the first planetary gear begins to move. If the vehicle begins to travel, the transmission moves into second. The faster the car travels, the higher gear ratios are used.

The torque converter is the vital piece of engineering that allows an automatic transmission to function. Inside it are an impeller, a turbine and a guide wheel. The turbine and impeller both sit inside a metal housing. A torque converter is linked to the engine by the transmission shaft. However, this shaft is not directly connected to the engine. Instead, hydraulic coupling is used to transfer engine power to the transmission.

Sensors can decide when a gear shift takes place in an automatic transmission. The shift itself can be performed mechanically or electronically. The transmission connects to the axles. This is the shaft that physically drives the wheels, converting the rotation of the transmission into forward power and driving the vehicle forward. All of these components work together to make gearboxes function well.