How are gear trains used in real life?
Planetary gear train (PGT) has been widely used in the transmissions of helicopters, automobiles, wind turbine, aircraft engines, etc. The main advantages of this transmission are its high efficiency, its compactness, its large transmission ratio and its large power-to-weight ratio, etc.
What are the application of gear drives?
Some of the popular uses of gear drives are automotive transmission systems, wheel differentials, marine equipment, turbines, and gear motors. Gear drives are preferred over other mechanical power transmission systems because of their high efficiency, high load capacity, and durability.
What are the applications of reverted gear trains?
The reverted gear trains are used in automotive transmissions, lathe back gears, industrial speed reducers, and clocks.
What are the advantages of a gear train?
It is capable of transmitting larger power than that of the belt and chain drives. It is more efficient (up to 99%) and effective means of power transmission. It requires less space as compared to belt and rope drives. It can transmit motion at very low velocity, which is not possible with the belt drives.
Why gear train is used in mechanical systems?
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….Example.
Gear | Ratio |
---|---|
reverse | −3.38:1 |
What are the commonly used gear tooth profiles?
The involute gear profile is the most commonly used system for gearing today, with cycloid gearing still used for some specialties such as clocks. In an involute gear, the profiles of the teeth are involutes of a circle.
What are different types of gear train and its application?
Following are the different types of gear trains: Simple gear train. Compound gear trains. Reverted gear trains. Epicyclic gear trains.
Where are epicyclic gear trains used?
Applications: The epicyclic gear trains are useful for transmitting high velocity ratios with gears of moderate size in a comparatively lesser space. These are used in the back gear of lathe, differential gears of the automobiles, hoists, pulley blocks, wrist watches etc.
What are the special advantages of epicyclic gear trains?
Advantages of Epicyclic Gearbox :
- High reduction ratios.
- 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.
What are the applications advantages and limitations of gear drive?
Advantages and Disadvantages of Gear Drives
- It can be use for small centre distances of shafts.
- It can be use to transmit large power.
- It has elevated efficiency.
- It has reliable service.
- It transmits precise velocity ratio.
- It has compact layout.
How does gear increase torque?
A gear’s transmission torque changes as it increases or decreases speed. Generally, by reducing the speed, a small torque at the input side is transmitted as a larger torque at the output side. The calculation of torque depends on the number of teeth.