To Determine the Effort Required to Lift a Load and Efficiency of Lifting by a Wheel and Differential Axle.

2345 Words Oct 22nd, 2012 10 Pages
NoExperiment No-9
Objective :
To determine the effort required to lift a load and efficiency of lifting by a wheel and differential axle.

Apparatus :
Wheel and differential axle, weight, scale etc.

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Apparatus description:

The model demonstrates the conditions of equilibrium on a differential pulley block. Three pulleys of different diameter are fitted to a shaft mounted on ball bearings. The forces act, on the one hand, directly on the peripheral of the largest pulley, on the other hand, via a roller on two smaller pulleys. Easy to interchange weights permit the load to be varied such that equilibrium is obtained. The model is intended for wall mounting. A wheel of 194 mm diameter is integral with a
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In some cases the axle is fixed in position with a bearing inside the hole in the wheel or gear to allow the wheel or gear to rotate around the axle. In other cases the wheel or gear may be fixed to the axle, with bearings provided at the mounting points where the axle is supported.

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Automobiles and other vehicles usually have a split axle, either front or rear. Each driven wheel is attached to a separate shaft, with a differential and universal joints between the two shafts and providing means to transfer power to the two half axles. The differential and split axle allows the two wheels to rotate at different speeds when the vehicle is turning. There are several types of axle: Transaxle - The most common type, which encases an automatic or manual transmission and a differential. The main purpose is the gear changing capabilities of a transmission. Drive Axle - Also called live axle, which contains the differentials. It provides the torque transfer capabilities of a differential. Straight Axle - A straight beam that connects the wheels together, but has no differentials. It helps to support the weight of the vehicle and serves as an attachment point for the wheels. Differentials: When a vehicle is negotiating a corner, the outside wheel has to travel a grater distance than the inside wheel. Therefore, the outside wheel must turn faster than the inside wheel. The

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