It helps the running engine to be connected to the driving wheel smoothly and without shock. It provides the leverage between engine and driving wheels to be varied. It helps the driving wheel to be driven at different speeds. It gives the relative movement between engine and driving wheels due to flexing of the road springs. Manual transmission. Automatic transmission. Epicyclical gearbox. Simple in construction, Simplest type of gearbox. In this gearbox, spur gears are used.
It consist of following parts. Low and reverse sliding gear. Second sliding gear. Input shaft. Clutch gear. Counter shaft drive gear. Counter shaft. Low speed gear. Second gear. Reverse idler gear. Gear shift fork. There are three gears 1,6 and 5 attached on the main shaft and four gears 2,3,4 and 7 are on the lay shaft. The two gears on the main shaft 6 and 5 can be slide by a shifting yoke and mesh with the gears 3 and 4 on lay shaft.
A separated idler gear 8 is mounted on the idler shaft. When the engine is running and the clutch is engaged, the counter shaft is driven by the clutch gear. The clutch gear rotates in opposite direction to the counter shaft. The low speed and high speed gears that are fitted on the transmission main shaft or gearbox shaft do not rotate because they are not engaged with any driving gears. Therefore there is no motion transmitted from clutch to output shaft. Hence the vehicle is stationary. All gears are constantly mesh and dog clutches are used for engaging and disengaging the gears.
Helical and double helical gear teeth can be used for the gears. A gearbox is a set of gears for transmitting power from one rotating shaft to another. They are used in a wide range of industrial, automotive and home machinery application. Gear heads are available in different sizes, capacities and speed ratios. Their main function is to convert the input provided by an electric motor into an output of lower RPM and higher torque. There are a number of performance specifications which must be considered while choosing a gearbox for different industrial applications.
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This site uses Akismet to reduce spam. Learn how your comment data is processed. Introduction to Pressure Vessels Vessels, tanks, and pipelines that carry, store, or receive fluids are called pressure vessels.
A pressure vessel is defined as a container with a pressure Knuckle Joint A knuckle joint is used to connect two rods which are under the action of tensile loads. However, if the joint is guided, the rods may support a compressive load.
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