What does a reverted gear drive do?
What does a reverted gear drive do?
A reverted gear train is very similar to a compound gear train. They are both used when there is only a small space between the input and output shafts and large changes in speed or power are needed.
What is meant by gear train?
A gear train is a mechanical system formed by mounting gears on a frame so the teeth of the gears engage. Gear teeth are designed to ensure the pitch circles of engaging gears roll on each other without slipping, providing a smooth transmission of rotation from one gear to the next.
What are different types of gear train?
Following are the different types of gear trains:
- Simple gear train.
- Compound gear trains.
- Reverted gear trains.
- Epicyclic gear trains.
What is the difference between a gear train and a compound gear train?
In a simple gear train, a few of the gears are connected to the similar shaft. In a compound gear train, every gear has its own shaft for rotation. In simple gear trains, the final gear ratio is resolute through the driver and driven gears. Compound gear trains enhance power transfer more than simple gear trains.
What is law of gearing?
Law of gearing states that the common normal at the point of contact between a pair of teeth must always pass through the pitch point for all positions of mating gear. This is a must condition for the two gears to perform properly.
What characteristics can a gear change in a gear drive?
Gears and Gear Drives They are used to transmit power to a driven piece of machinery and to change or modify the power that is transmitted. Modifications include reducing speed and increasing output torque, increasing speed, changing the direction of shaft rotation, or changing the angle of shaft operation.
What is the purpose of gear train?
The main purpose of a gear train is to increase torque or speed. The arrangement of the driver and driven gears determine if the gear train will increase torque or speed. To increase output torque using a gear train, a power source should be directly connected to a smaller gear and used to drive a larger gear.
Where are gear trains used?
Gear trains are used in almost all machines which are dealing with the mechanical power. Some of the places where gear trains are used are engines, lathes, clocks, gear box and Differential of automobiles etc.
Which gear train is used in differential?
epicyclic gear trains
The epicyclic gear trains are used in the back gear of lathe, differential gears of the automobiles, hoists, pulley blocks, wrist watches etc.
What are the applications of reverted gear train?
The reverted gear trains are used in automotive transmissions, lathe back gears, industrial speed reducers, and in clocks (where the minute and hour hand shafts are co-axial).
What are the advantages of epicyclic gear train?
Advantages of Epicyclic Gearbox : Compact and lightweight with high torque transmission. High radial loads on the output shaft. It is quieter in operation. Uniform distribution of load over all gears having greater tooth contact.
When do you have a reverted gear train?
Reverted Gear Train When the axes of the first gear (i.e. first driver) and the last gear (i.e. last driven or follower) are co-axial, then the gear train is known as reverted gear train as shown in Fig. 1. We see that gear 1 (i.e. first driver) drives the gear 2 (i.e. first driven or follower) in the opposite direction.
When does the first gear drive the last gear?
When the axes of the first gear (i.e. first driver) and the last gear (i.e. last driven or follower) are co-axial, then the gear train is known as reverted gear train as shown in Fig. 1. We see that gear 1 (i.e. first driver) drives the gear 2 (i.e. first driven or follower) in the opposite direction.
What are the different types of gear trains?
We have generally 4-types of gear trains, and those are: Simple Gear Train. Compound Gear Trains. Reverted gear Trains. Epicyclic Gear Trains. So let’s dive into each one of the gear trains.
What is the train value of a gear train?
Train Value: It is the ratio of the speed of driven gears to the speed of the driver gears is known as the train value. So the train value of simple gear train is: n1/n2/=T1/T2