Transmission Of Power By Belt And Rope Drives

There are two types rope drive fiber rope and wire rope.

Transmission of power by belt and rope drives.

The friction between the belt and the wheel is further affected by centrifugal force which tends to lift the belt off the wheel. Typically its operating temperatures are restricted to 35 to 85 c. It has limited power transmission of up to 370 kw which increases the heat build up. Rope drives use a number of circular section ropes rather than a single flat or vee belt.

E g elevator lift overhead crane hoist ropeway etc. A rope drive is a form of belt drive used for mechanical power transmission. Advantages of the rope drive. The power at which the belt slips is not the absolute maximum power that can be transmitted as more power can be transmitted with slippage occurring by using higher wheel speeds.

Angular velocity of belt drives isn t constant. It may be noted that the use of flat belts is limited for the transmission of moderate power from one pulley to another when the two pulley is not more than 8 metres apart. The power transmitted by a v belt drive and be increased by operating with several belts placed side. 1 belt drive 2 rope drive 3 chain drive 4 gear drive.

This type of drive is used when the power is to be transmitted from one shaft to other which is at a distance. Advantages and disadvantages of the v belt drive over a flat belt drive. This leads to stretching slipping and wearing of belt. In most cases the power transmitted relies upon the friction between the rope or belt and the rim of the pulley.

When the center distance between the driver and driven shaft is very large and higher power is required to be transmitted rope drives are used. Problem 1 based on belt drive video lecture from chapter power transmission in theory of machine for mechanical engineering students watch next videos of ch. Compared to other mode power transmission they have a short life service. Flywheel and rope drum of the large mill engines victoria and alexandra at ellenroad mill.

Pulleys are mounted on the driver and driven follower shafts and an endless belt are fitted tightly over these pulleys. Rope drives use a number of circular section ropes rather than a single flat or vee belt. Here instead of a belt wire rope is used. Rope drive do not mistaken with round belt is used where a large amount of power is needed to transfer for a long distance more than 8m.

The following are the major types of power transmission. Where power has to be transmitted between two shafts which are a distance apart a belt or rope drive is frequently used.