The Woodruff key is a semi-circular disc of uniform thickness. It is a type of sunk key in which the upper part is flat, and the lower part is semi-circular.It is used in mechanical engineering to securely lock gears, pulleys, or sprockets onto a shaft to transmit torque. This key is also known as the half-moon…
Here are the prerequisites to understand sunk key:-1) Shaft Key:-A shaft key is a component that is used to connect a pulley or a gear to a shaft. It connects the pulley or gear to the shaft such that when the shaft rotates, the pulley or the gear rotates with it. There are mainly two…
A clutch is an automobile device that transmits rotating motion or torque from the engine to the gearbox.The transmission of power between the engine and the gearbox needs to be stopped temporarily under some conditions like shifting gears and some other conditions. To disconnect the engine and the gearbox temporarily, a clutch is used. Manual transmission vehicles mainly use two types of clutch, i.e., mechanical and hydraulic. If you observe old…
The Lamont Boiler is the first forced convection boiler. It is a high-pressure water tube, forced circulation externally fired. boiler. It was named the Lamont Boiler because it was introduced by Douglas La-Mont in the year 1925.In lamont boiler, an external water tube pump is used to circulate water within the water tubes of the boiler. So,…
A hydraulic intensifier is used to increase the pressure of a liquid (water), which is at low pressure and large volume to a higher pressure and lower volume.It increases the pressure in a hydraulic circuit to a higher value than the pressure provided by the pump. These older hydraulic machines required hydraulic liquids which are at higher…
Condenser:- A condenser is a heat exchanger used to condense a gaseous substance into a liquid state through cooling.It is a component of a thermal power plant and is also used in a refrigeration system.It uses water as a cooling medium. A condenser is used for taking the latent heat of the fluid and converting…
Shot blasting is one of the methods of surface treatment in which irregularities on the metal’s surface are removed by the use of particulate grains propelled at high velocity.Shot blasting is different from sand blasting because shot blasting uses a centrifugal wheel, whereas in the sand blasting method, compressed air is used to deliver its…
Soldering:- Soldering is the process of joining two similar or dissimilar metals by means of filler material ( lead, tin, alloy ).The melting point will be less than 450°C of the filler material.The melting point of filler material is always less than the melting point of the parent metal, whether it is brazing or soldering.Flux…
When the axes of the first gear (i.e., first driver ) and last gear (i.e., last driven or follower ) are the same, the gear train is called a reverted gear train. Reverted gear trains are used in automotive transmissions, lathe back gears, industrial speed reducers, and in clocks ( where the minute and hour…
Velocity ratio is the ratio of the distance moved by the effort to the distance moved by the load in a machine.Or,Velocity ratio can be defined as the ratio of the velocity of the effort to the velocity of the load in a machine. Velocity ratio is a dimensionless constant. We know that, There are…