project presentation for development of trolley with turntable mechanism

1. DESIGN AND FABRICATION
OF HASSLE FREE WAGON
PROJECT BY
JASHWANTH .M (412412114032)
MUTHU .A (412412114054)
SRIKANTH .M (412412114 098)
SRINATH .R (412412114099)
UNDER THE GUIDANCE OF
Mr. B. KARTHIKEYAN
Assistant Professor
Department Of Mechanical Engineering
Sir Sairam Institute Of Technology

2. In all manufacturing unit there is a need to transport certain articles, certain tools
sometimes the component being manufactured itself needs to be transported. This
cannot simply be done by manpower and this is where a wagon that has a good
capacity and easy maneuverability comes into play. These wagons or trolleys
practically are simpler and saves time for transport also. The inherent advantages
cannot be unseen here. The maneuvering part is made with a simple mechanism.
The mechanism of the trolley is simple but effective. The body is made of mild
steel which is of 5mm thickness. The angle and the bars are also of mild steel of
thickness 6mm. The frame is welded perfectly in order to obtain the maximum
efficiency from the trolley. The mechanism for turning the trolley is made using
turntable mechanism of two 200mm discs of thickness 5mm.
ABSTRACT

3. • Terminology and design : The exact name and terminology used is often
dependent on the design or shape of the wagon. If low and sideless may be
called a dray, trolley or float. When travelling over long distances and
periods, wagons may be covered with cloth to protect their contents from the
elements; these are "covered wagons".
• A turntable trolley is the one which can easily be able to turn and handle
sharp turns that are not easy to be maneuvered by normal trolleys with wheels
that are capable of turning on its own. In order to bring it to simple terms with
the operator a simpler turntable trolley is required. This has an easy turnable
mechanism which is welded to a handle which helps in easy gripping easy
turning option.
INTRODUCTION

4. DESIGN
BASIC DIMENSIONS:
LENGTH 910 mm
BREADTH 760 mm
DIAMETER OF WHEEL 125 mm
THICKNESS OF PLATE 5 mm
CROSS SECTION OF FRAME 50x6 mm
LENGTH OF AXLES 600 mm

5. CAD MODEL - FRAME

6. TURNTABLE MECHANISM

7. CAD MODEL – ASSEMBLED

8. Length of axle = 0.6m
Distance between welds = 0.56m
Load applied/carried = 60Kg (Distributed to the axles by welds)
= 15kg through each weld = 147.15N
Weight of the trolley = 120Kg = 1177.2N
From equilibrium equation
ΣF=0
ΣM=0
This gives the reaction at the supports as
R1 = 294.3N R2 = 294.3N
R3 = 294.3N R4 = 294.3N
Calculate the maximum bending moment for the beam,
M (max) = 16.7155 N-m
Considering FOS = 2,
M (max) = 40.07N –m
LOAD CALCULATION FOR AXLES

9. FREE BODY DIAGRAM - ANSYS

10. STRESS DISTRIBUTION - ANSYS

11. CONCLUSION
• Our work and the results obtained so far are very encouraging
and reinforce the conviction that hassle free wagon are
practical and potentially It is hoped that they may be
constructed used high-strength, low- weight materials, capable
of making sharp turns easily, transport heavy loads with less
effort for deployment in more developed nations and settings
with local materials and local skills in less developed
countries.