Types of gear train

From TypeAndList
Published Date: 2017-08-16
Modified Date: 2019-07-25

There are different types of gear train which are used to transmit motion and power from one shaft to another with different velocity ratio. Gear trains are divided into different types on the basis of arrangement and working. These different types of gear train are as per following.

Contents

Gear

Gear is a rotating machine element or machine part used to transmit motion and power. In figure 1 circular gear with some thickness is shown which having cut teeth. These all teeth having same tooth profile with equal spacing between them along the circumference. Number of teeth of gear is depending upon size of tooth and gear. A single gear cannot transmit motion and power, at least two or more gears must be meshed to each other to transmit motion and power. Gear teeth are used to mesh with other gear as well as to transmit motion and power without slip.

Meshing of gears

As shown in figure 2, two circular gears of different size are shown which have same tooth profile and with equal spacing between them and have different number of teeth. These two gears are arrange in the manner that both gears must come in contact with each other to transmit motion and power without slip and this is done by inserting tooth of both gears into each other in the spacing between two teeth of both gears and these tooth make full contact to each along thickness of gears. In this way, these both gears are come in contact with each other and this is known as meshing of gears. For more information of visit Gear - Wikipedia

Gear train

A single gear cannot transmit motion and power from one shaft to another shaft, at least two or more gears must be meshed to each other to transmit motion and power. Gear train is a mechanical system formed by mounting gears on shafts and shafts are supported by a frame to mesh gears together and this combination of two or more gears which are mesh together, used to transmit motion and power from one shaft to another shaft. It is used to achieve large and different velocity ratio in small area or space, for increasing or reducing speed, transmit motion at same speed and to change rotational direction of driven shaft. Different types of gears are used in gear train, like spur gear, helical gears and bevel gears. Gear selection for gear train is depend upon various different aspect like position of shaft axes, velocity of gear, increasing or reducing speed, etc. Gear trains are used in various machines and there is large number of examples like in automobile, gearbox, lathe machine, milling machine, clock, toys, etc. For more information visit gear train

Types of gear train

Simple gear train

Simple gear train is a type of gear train which is used to transmit motion and power from one shaft to another shaft. Simple gear train consist two or more gear but only one gear is mounted on each shaft and these shafts are rigidly fixed or not movable. Two simply mesh gears are known as simple gear train. In simple gear train, different types of gear are used like spur gear, helical gear, bevel gear, etc. These gears are different in size and have different number of teeth, which is used to achieve speed up or slow down the final output. For more information visit simlpe gear train

Compound gear train

Compound gear train is a type of gear train which is used to transmit motion and power from one shaft to another shaft. Compound gear train consists of one or more compound gear (intermediate gears) with input (driving) and output (driven) gears. Compound gear is use in compound gear train which is a difference between simple gear train and compound gear train. Compound gear has two or more rigidly fixed gears of different size and has different number of teeth on the same shaft with same axis of rotation and same angular velocity. These gears are different in size and have different number of teeth, which is used to achieve speed up or slow down the final output. For more information visit compound gear train

Reverted gear train

Reverted gear train is a special type of gear train which is used to transmit motion and power from one shaft to another shaft. Reverted gear train consists of one or more compound gear (intermediate gears) with input (driving) and output (driven) gears. Reverted gear is use in compound gear train which is a difference between simple gear train and Reverted gear train. Reverted gear has two or more rigidly fixed gears of different size and has different number of teeth on the same shaft with same axis of rotation and same angular velocity. These gears are different in size and have different number of teeth, which is used to achieve speed up or slow down the final output. In Reverted gear train, different types of gear are used like spur gear, helical gear, bevel gear and many more. In Reverted gear train, driving gear shaft axis and driven gear shaft axis are in a line or coaxial and this make it different from compound gear train. For more information visit reverted gear train

Epicyclic gear train

Epicyclic gear train is a special type of gear train which is used to transmit motion and power from one shaft to another shaft. In simple, compound and reverted gear train , gear shaft axis is fixed or not movable but in epicyclic gear trains, the shaft axes are not fixed means the shaft axis is movable. There is a relative motion between the gears axis. Epicyclic gear trains may consist of simple gear trains, compound gear trains and mixed simple and compound gear trains. The advantage of epicyclic gear train is that, it can get very high or very low velocity ratio compared to simple gear trains and compound gear trains. In epicyclic gear train, different types of gear are used like spur gear, helical gear, bevel gear and many more. These gears are different in size and have different number of teeth, which is used to achieve speed up or slow down the final output. For more information visit epicyclic gear train

These are the type gear trains are use in machine according to require velocity ratio, space and application.