The gear train usually employed in clocks isa)Reverted gear trainb)Si...
When the axes of the first gear and the last gear are co-axial, then the gear train is known as a 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).
The epicyclic gear trains are useful for transmitting high-velocity ratios with gears of moderate size in a comparatively lesser space. The epicyclic gear trains are used in the back gear of lathe, differential gears of the automobiles, hoists, pulley blocks, wrist-watches, etc.
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The gear train usually employed in clocks isa)Reverted gear trainb)Si...
Reverted Gear Train in Clocks
- The gear train usually employed in clocks is a reverted gear train.
- A gear train is a system of gears that transmit motion or power from one part of a machine to another.
- In a clock, the gear train is responsible for converting the rotational motion of the clock's main power source (such as a spring or weight) into the desired timekeeping movement of the clock hands.
- A reverted gear train is a type of gear train commonly used in mechanical clocks.
Working of a Reverted Gear Train
- A reverted gear train is characterized by having the last gear in the train connected to the first gear in a manner that reverses the direction of rotation.
- The gear train in a clock usually consists of a set of gears with different sizes that are arranged in a specific order.
- The first gear in the train, called the drive gear, is connected to the main power source of the clock.
- As the drive gear rotates, it transfers its rotational motion to the next gear in the train, and so on.
- In a reverted gear train, the last gear in the train, known as the reverted gear, is connected back to the first gear in a way that reverses the direction of rotation.
- This ensures that the clock hands move in the correct direction to indicate the passage of time.
Advantages of Reverted Gear Train
- The use of a reverted gear train in clocks offers several advantages:
- It allows for a compact and efficient design of the gear train, as the number of gears required is minimized.
- It simplifies the construction and assembly of the clock mechanism.
- It ensures that the clock hands move in the correct direction to indicate the passage of time.
Conclusion
- In conclusion, a reverted gear train is the type of gear train usually employed in clocks.
- It is characterized by having the last gear connected back to the first gear in a way that reverses the direction of rotation.
- This design ensures that the clock hands move in the correct direction to indicate the passage of time.
- The use of a reverted gear train offers advantages such as a compact design, simplified construction, and efficient operation.