Md Prjct Edited 1.doc

MODELLING AND ASSEMBLY OF UNIVERSAL COUPLING A Project Based Laboratory Report Submitted in partial fulfillment of the award of degree

BACHELOR OF TECHNOLOGY in (Mechanical Engineering) submitted

by Name of Students Y.D.V.S.N. Krishna prasad swamy Y. Yajnesh Y. Naga sai CH. Suresh

University Roll No 170070233 170070236 170070237 170070247

Under the guidance of

Mr. Shaik Khadar Bhasha

Assistant Professor (M. Tech)

KLEF Green Fields, VADDESWARAM – 522 502 Guntur District, A.P., INDIA (2018 – 19)

KL UNIVERSITY Green fields, VADDESWARAM

CERTIFICATE This is to certify that the project-based laboratory report entitled “MODELLING AND ASSEMBLY OF UNIVERSAL COUPLING” submitted by Y. Divij, Y. Yajnesh, Y. Naga Sai, CH. Suresh. Beholding Reg. No: 170070233, 170070236, 170070237, 170070247 in partial fulfillment of project-based lab in Machine Drawing (17ME2107) for II/IV Bachelor of Technology is a bonafide record of the work carried out under my guidance and supervision at KL University during the academic year 2018-19.

Date:

Signature of Project guide Mr.

Shaik

Khadar

Bhasha (M. Tech)

External Examiner

HoD-ME

ACKNOWLEDGEMENT It is great pleasure for me to express my gratitude to our honorable President Sri. Koneru Satyanarayana, for giving the opportunity and platform with facilities in accomplishing the project-based laboratory report. I express the sincere gratitude to our Mechanical Head of the Department Dr. A. Srinath for his administration towards our academic growth. I express my sincere thanks to our project supervisor Mr. Khadhar Bhasha for his novel association of ideas, encouragement, appreciation and intellectual zeal which motivated us to venture this project successfully. Finally, it is pleased to acknowledge the indebtedness to all those who devoted themselves directly or indirectly to make this project report success.

SUBMITTED BY: Y. Divij Y. Yajnesh Y. Nagasai Ch. Suresh

(170070233) (170070236) (170070237) (170070247)

CONTENTS 1. Abstract 2. Introduction 3. Figure 4. Procedure 5. Results 6. Conclusion

ABSTRACT A universal joint (universal coupling, U-joint, Cardan joint, Spicer or Hardy Spicer joint, or Hooke's joint) is a joint or coupling connecting rigid rods whose axes are inclined to each other, and is commonly used in shafts that transmit rotary motion. It consists of a pair of hinges located close together, oriented at 90° to each other, connected by a cross shaft. The universal joint is not a constant-velocity joint.The main concept of the universal joint is based on the design of gimbals, which have been in use since antiquity. One anticipation of the universal joint was its use by the ancient Greeks on ballistae. In Europe the universal joint is often called the Cardano joint or Cardan shaft, after the Italian mathematician Gerolamo Cardano; however, in his writings, he mentioned only gimbal mountings, not universal joints.

Advantages: *Drive framework is less inclined to end up stuck. *The rider can't progress toward becoming dirtied from chain oil or harmed by "Chain chomp" when dress or a body part gets between an unguarded chain and a sprocket. *Lower upkeep than a chain framework when the drive shaft is encased in a tube.

Disadvantage: *A drive shaft framework gauges in excess of a chain framework, generally 0.5– 1 kg (1– 2 lb) heavier. *A significant number of the favorable circumstances asserted by drive shaft's advocates can be accomplished on a chain-driven bike, for example, covering the chain and riggings. *Utilization of lightweight derailleur gears with a high number of proportions is outlandish, in spite of the fact that center point riggings can be utilized. *Wheel expulsion can be convoluted in a few plans (as it is for some chain-driven bikes with center riggings)

INTRODUCTION A Universal coupling is a special type of coupling in which misalignment of shafts is allowed. Shafts are free to move any direction in order to transmit torque or power from one shaft to another. In this project work a Universal coupling was designed, in which safe torque on shafts and pin size of cross determined.

Applications : universal coupling is more commonly used in following applications. Aircrafts Driveshaft Control mechanisms Control mechanisms Medical and optical devices Radio Belt conveyors Metal forming machinery Appliances Centrifugal blowers Electronic instruments Sewing machines Tool drivers

FIGURE Keep final assembled component picture for example:

universal coupling

RESULTS:

CONCLUSION In this project we have designed a shock absorber used in a 150cc bike.we have modeled the shock absorber by using a solidworks software. The results were obtained are quite favorable which was expected. This result focus relationship between the manufacturing cost and joint angle performance measures of an automotive universal joint, results illustrate that an increase in the drivable joint angle requires a corresponding increase in manufacturing cost. However, for both the flange and weld yoke, a substantial reduction in manufacturing cost may be realized by restricting the joint angle to less than 30°. that the manufacturing cost of the flange and weld yokes may be decreased by 4.5% and 4.0%, respectively, while simultaneously increasing the joint angle by 34° and 38°.