Multi -angular Gearless Mechanism

1. Under The Guidance of
PRASHANT.M.D
Assistant Professor,
Department Of Mechanical Engineering
“DESIGN AND FABRICATION OF MULTI-ANGULAR GEARLESS
TRANSMISSION”
SIDDAGANGA INSTITUTE OF TECHNOLOGY, TUMAKURU
(An autonomous Institution under Visvesvaraya Technological University recognised by AICTE, Accredited by NBA, New Delhi)
TUMKUR -572 103, Karnataka, INDIA
MINI PROJECT PRESENTATION
Titled
Presented By
Kartik Kulkarni 1SI15ME062
Akash Bana 1SI15ME013
Akshay Kumar Y B 1SI15ME015
Kiran Kumar K R 1SI15ME065

2. Content
• Need of Gearless Mechanism
• What is Multi-Angular Gearless Mechanism
• Principle of Working
• Applications
• Methodology
• Comparison
• Advantages
• Limitations
22-02-2019
“DESIGN, ANALYSIS AND FABRICATION OF MULTI-ANGULAR
GEARLESS POWER TRANSMISSION”
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3. Need Of Gearless Transmission
• Today’s world requires speed on each and every field.
• Engineers are constantly confronted to the challenges of efficient transmission of
power.
• Gears are costly to manufacture.
• It is needed to further increase the efficiency of transmission which cannot be
done using geared transmission
• Gearless transmission mechanism is capable of transmitting power at any angle
without any gears being manufactured
22-02-2019
“DESIGN, ANALYSIS AND FABRICATION OF MULTI-ANGULAR
GEARLESS POWER TRANSMISSION”
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4. What Is Multi-Angular Gearless Mechanism
• Multi-Angular Gearless Transmission is a
motion transmitting device used for
transmitting motion at multiple angles
between the driving and the driven shaft.
• The power can be transmitted between
0 to 90 degrees.
22-02-2019
“DESIGN, ANALYSIS AND FABRICATION OF MULTI-
ANGULAR GEARLESS POWER TRANSMISSION”
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5. Principle Of Working
• Motion is transmitted from driving to the driven shaft
through the sliding pairs which remain either straight
or bent using universal joints,
• These sliding pairs are placed in equally spaced holes
around a solid cylindrical disc, which allow it to
move freely
• This type of drive is especially suitable where quite
operation at high speed and at various angles is
required
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“DESIGN, ANALYSIS AND FABRICATION OF MULTI-ANGULAR
GEARLESS POWER TRANSMISSION”
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6. Applications
• Gang drilling (Multi-spindle drilling)
• Movement of periscope in submarines.
• Angular drilling between 0- 90 degrees.
• Wind powered gearless power generation.
22-02-2019
“DESIGN, ANALYSIS AND FABRICATION OF MULTI-ANGULAR
GEARLESS POWER TRANSMISSION”
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7. Methodology
LITERATURE SURVEY
DESIGN AND CALCULATION
MATERIAL SELECTION
RESULT AND DISCUSSION
FABRICATION AND ASSEMBLY
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“DESIGN, ANALYSIS AND FABRICATION OF MULTI-ANGULAR
GEARLESS POWER TRANSMISSION”
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8. SL.NO PART NAME MATERIAL QUANTITY
1 CYLINDERS MILD STEEL 2
2 BEARINGS CAST IRON 2
3 SHAFTS MILD STEEL 2
4 LINKS MILD STEEL 6
5 FRAME MILD STEEL 1
Materials
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“DESIGN, ANALYSIS AND FABRICATION OF MULTI-ANGULAR
GEARLESS POWER TRANSMISSION”
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9. Reasons for using Mild Steel
• It has carbon content from 0.15 to 0.30 percent.
• It is highly ductile
• It is readily available in the market in standard sizes
• It is economical to use
• It has high machinability
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“DESIGN, ANALYSIS AND FABRICATION OF MULTI-ANGULAR
GEARLESS POWER TRANSMISSION”
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10. Fabrication Works
• Measuring and Marking
• Cutting Material
• Grinding
• Drilling
• Welding
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“DESIGN, ANALYSIS AND FABRICATION OF MULTI-ANGULAR
GEARLESS POWER TRANSMISSION”
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11. Comparison
GEARED
Manufacturing methods-
• Costly.
• Manufactured on special purpose machines
• Complex calculations
• No interchangeability
Lubrication and cooling
• Complex system
• Cooling is a big issue
Different speed at any angle is not
possible
GEARLESS
Manufacturing methods
• Less costly.
• No need of special machines
• Less calculations
• Freedom of interchangeability
Lubrication and cooling
• Simple system
• Cooling is not a big issue
Different speed at any angle is possible
22-02-2019
“DESIGN, ANALYSIS AND FABRICATION OF MULTI-ANGULAR
GEARLESS POWER TRANSMISSION”
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12. Advantages
• Complete freedom of Interchange ability
• More efficient than gear
• Power could be transferred to any desired angle
• Ease of manufacturing
• Misalignment of shafts can be tolerated to some extent
• Low cost of manufacturing
• Portability of parts
22-02-2019
“DESIGN, ANALYSIS AND FABRICATION OF MULTI-ANGULAR
GEARLESS POWER TRANSMISSION”
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13. Limitations
• Does not work at very low starting torque.
• Improper hole drilling could pose much problem.
• Sudden load would cause mechanism breakdown.
• Links are to be replaced after certain cycle time.
• Speed ratio is always constant 1:1
22-02-2019
“DESIGN, ANALYSIS AND FABRICATION OF MULTI-ANGULAR
GEARLESS POWER TRANSMISSION”
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14. THANK YOU
22-02-2019
“DESIGN, ANALYSIS AND FABRICATION OF MULTI-ANGULAR
GEARLESS POWER TRANSMISSION”
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