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MECHANICAL DRIVE USED IN ENGINE, MUHAMMAD AMIRUL SYAHMEE BIN MOHD BASERI…
MECHANICAL DRIVE USED IN ENGINE
GEAR
USAGE OF MECHANICAL DRIVE:
Transmit power to a driven piece of machinery and to change or modify the power that is transmitted. When one gear is turned the other one turns as well.
DISADVANTAGES :
They are not suitable when shafts are distant.
At high speeds noise and vibration happens.
It requires lubrication.
It has no flexibility.
ADVANTAGES:
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
It is compact in construction.
DIFFERENT TYPES OF MECHANICAL DRIVES :
Internal gear.
Screw gear.
Worm gear.
Bevel gear.
Spiral bevel gear.
Spur gear.
Mitre gear.
Gear rack.
Helical gear.
MECHANICAL DRIVES MAINTENANCE:
Perform a Regular Inspection of the Gearbox.
Monitor the Temperature of the Gearbox.
Lubricate the Gearbox Regularly.
Ensure proper alignment of the gearbox with the equipment.
Check the Gearbox for Dirt and Dust.
Observe for gearbox vibrations.
BELT
USAGE OF MECHANICAL DRIVE :
Transmission of mechanical power between two rotating shafts.A belt is a loop of flexible material used to link two or more rotating shafts mechanically, most often parallel.
DIFFERENT TYPES OF MECHANICAL DRIVE :
Open belt drive.
Closed or crossed belt drive.
Fast and loose cone pulley.
Stepped cone pulley.
Jockey pulley drive.
Quarter turn belt drive.
Compound belt drive.
MECHANICAL DRIVE MAINTENANCE :
Elements of a good maintenance program. Maintain a safe working environment.
Maintain a safe working environment.
Inspect regularly.
What to look for.
Install belts properly.
Know your belts.
Store belts properly.
Troubleshooting.
ADVANTAGES :
They are simple and economical.
They can transmit Power over a considerable distance.
They can protect the machine from overloading by slipping of the belt over a pulley.
Belt drive can absorb shock and damp vibration.
The operation is smooth and silent.
They are durable and require very little maintenance.
DISADVANTAGES :
Limited Speed range.
They are not compact.
Considerable power loss.
Short service life compared to other mode power transmission.
The velocity ratio may vary due to belt slip
They inflict a heavy load on shafts and bearings.
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