What is the purpose of a gear train?

What is the purpose of a 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 the advantages of a gear train?

The main advantages of a gear train transmission systems is that because the teeth on any gear intermesh with the next gear in the train the gears cannot slip. (An exact ratio is maintained.) Large forces can be transmitted. The number of turns a gear makes can be easily controlled.

What is the purpose of gears?

Gears are mechanisms that mesh together via teeth and are used to transmit rotary motion from one shaft to another. Gears are defined by two important items: radius and number of teeth. They are typically mounted, or connected to other parts, via a shaft or base.

What is gear and gear train?

Gears and Gear Trains- Gears is a positive drive which transmits exact velocity ratio from one shaft to another shaft, gear drive is used when the distance between driver and follower is very less, when two or more gears are made to mesh with each other to transmit power from one shaft to another, the combination is …

What is a gear system?

Gear systems consist of several gears and are major components of many engineering applications such as drive trains in cars. In operating gear systems, non-smooth dynamics such as gear hammering or high frequency oscillations may occur.

What is the main advantage of gear transmission?

Gears require only lubrication, hence less maintenance is required. Using gear systems, we can transmit motion between non-parallel intersecting shafts. They are used for positive drive, so its velocity ratio remains constant. They have long life, so the gear system is very compact.

What is gear and its advantages?

Advantages of Gear drive It is positive drive hence velocity remains constant. Provisions for changing velocity ratios can be made with the help of gear box. Its efficiency is very high. It can be used even for low speeds. It can transmit high torque values.

What are the 5 functions of a gear?

The Functions of Gears

• Gears for Setting the Rotate Speed. The gears can adjust the rotating speed of power.
• Gears for Transmitting Power. The second function is the gears can transmit power with interconnected gears without causing slippage.
• Gears for Changing Torque.
• Gears for Changing the Power Direction.

What mechanism is called a gear train?

A gear train is a mechanism that consists of two or more gears. Gears are disks with teeth that mesh together. The drive gear is rotated by a motor. The teeth of the drive gear mesh with those of the driven gear.

What is gear train value?

Simple Gear Train The ratio of speed of the driven or follower to the speed of the driver is known as Train Value (TV).

What is the train value of gear train?

Explanation: Train value = Speed of the last driven or follower/Speed of the first driver. Explanation: 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.

How does a gear cycle work?

Bicycles have gears to make going uphill easier, and also to facilitate going faster on level ground. The bicycle gear system works by sliding the shifter on the handlebars. A bicycle gear system involves Downshifting and Upshifting – Downshifting means going to a lower gear and Upshifting means going to a higher gear.

What is a transmission system?

Definition Of Transmission System :- The mechanism that transmits the power developed by the engine of automobile to the engine to the driving wheels is called the TRANSMISSION SYSTEM (or POWER TRAIN).It is composed of – Clutch The gear box

What are the features of gears and gear trains?

Features of gears and gear trains include: The ratio of the pitch circles of mating gears defines the speed ratio and the mechanical advantage of the gear set. A planetary gear train provides high gear reduction in a compact package.

How does a gear train reduce the input torque?

And, if the output gear has fewer teeth than the input gear, then the gear train reduces the input torque. If the output gear of a gear train rotates more slowly than the input gear, then the gear train is called a speed reducer.

What are the advantages of a planetary gear train?

The main advantages of this transmission are its high efficiency, its compactness, its large transmission ratio and its large power-to-weight ratio, etc. Planetary gear trains consist of either spur, single-helical or herringbone gears.