Bevel gear - Applications

Differential gearboxBevel gear on roller shutter door Bevel gear lifts floodgate

by means of central screw

Rack and pinion

Worm and worm wheel

Used in - elevators (Lifts)

- Rolling mills

- Mining industry machines

Sliding Mesh gearbox

Clutch shaft

Clutch gear

Second speed gear

First speed gear

Main shaft

Lay Shaft (counter shaft)

• Sliding mesh gearbox is simplest form of gearbox.

• The power comes from engine shaft to the clutch shaft.

• Clutch gear is always in mesh with a gear n the lay shaft.

• Three main and one reverse speeds are attained on suitably moving

the gears on the main shaft by means of selector mechanism.

Constant Mesh gearbox

Splined main shaft

Reverse gear

Low gearSecond gearSliding clutch

Clutch gear

Clutch shaft

Lay shaft

• The gears are in constant mesh with corresponding gears on the lay shaft

• The gears on main shaft are freely rotating• The gears on the lay shaft are fixed• When the left dog clutch moves right makes contact with second

gear is obtained.• Similarly the movement of right dog clutch to left results in low gear

and towards right in reverse gear.

Clutch shaft

Pressure plate

Clutch plate

Friction lining

Engine shaft

Clutch pedal

Fly wheel

CLUTCHES

Fig. Single plate clutch

A Clutch is is machine member used to connect the driving shaft to a driven shaft,

Connects the engine and the gear box.