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IJSTE - International Journal of Science Technology &
Engineering | Volume 1 | Issue 11 | May 2015 ISSN (online):
2349-784X
All rights reserved by www.ijste.org
255
Design Analysis and Improvement of EOT Crane
Wheel
Yogi Raval
Department of Mechanical Engineering
MEFGI
Abstract
The wheel assembly is an integral part of Electric Overhead
Travelling Crane systems that are intended to move in a guided
path.
Design is an important industrial activity which influences the
quality of the product. There is research gap of optimization
of
track wheel. It is always beneficial to optimize any component
for the purpose where it is applicable. Optimization techniques
carried out for track wheel to find out the optimum material
distribution. Based on these optimization outputs, new
practical
designs were generated and FEanalysis was carried out for the
optimized design to verify the stress induced on track wheeland
compare with original design. A solver mode in analysis software
calculates the stresses, deflections, bending moments. The
finite element method as well as optimization techniques were
included as basis of mathematical simulation. With these tools,
optimization of track wheel carried out.
Keywords: Yield Strength, Density, Youngs Modulus,(E)
________________________________________________________________________________________________________
I. INTRODUCTION
An overhead crane, commonly called a bridge crane, is a type of
crane found in industrial environments. An overhead crane
consists of parallel runways with a traveling bridge spanning
the gap. A hoist, the lifting component of a crane, travels along
the
bridge. If the bridge is rigidly supported on two or more legs
running on a fixed rail at ground level, the crane is called a
gantry
crane or a goliath crane. Unlike mobile or construction cranes,
overhead cranes are typically used for either manufacturing or
maintenance applications, where efficiency or down time are
critical factors.
Fig. 1:
Overhead cranes are commonly used in the refinement of steel and
other metals such as copper and aluminium. At every step of
the manufacturing process, until it leaves a factory as a
finished product, metal is handled by an overhead crane. Raw
materials
are poured into a furnace by crane, hot metal is then rolled to
specific thickness and tempered or annealed, and then stored by
an
overhead crane for cooling, the finished coils are lifted and
loaded onto trucks and trains by overhead crane, and the
fabricatoror
stamper uses an overhead crane to handle the steel in his
factory. The automobile industry uses overhead cranes to handle
raw
materials. Smaller workstationcranes, such as jib cranes or
gantry cranes, handle lighter loads in a work area, such as cnc
mill or
saw.
Almost all paper mills use bridge cranes for regular maintenance
needing removal of heavy press rolls and other equipment.
The bridge cranes are used in the initial construction of paper
machines because they make it easier to install the heavy cast
iron
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Design Analysis and Improvement of EOT Crane Wheel (IJSTE/
Volume 1 / Issue 11 / 042)
All rights reserved by www.ijste.org
256
paper drying drums and other massive equipment, some weighing as
much as 70 tons.In many instances the cost of a bridge
crane can be largely offset with savings from not renting mobile
cranes in the construction of a facility that uses a lot of
heavy
process equipment.
II. ANALYSIS OF EOT CRANE WHEEL
In this wheel we have used material is EN9 steel and its
material properties are given in below table. Table 1
Material Properties
Material selected EN9
Youngs Modulus,(E) 206E03 MPa
Poissons Ratio 0.30
Tensile Ultimate strength 850MPa
Yield strength 570MPa
Density 7.8E-06 Kg/MM^3
Behaviour Isotropic
Fig. 2:
Fig. 3:
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Design Analysis and Improvement of EOT Crane Wheel (IJSTE/
Volume 1 / Issue 11 / 042)
All rights reserved by www.ijste.org
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Fig. 4:
Fig. 5:
Fig. 6:
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Design Analysis and Improvement of EOT Crane Wheel (IJSTE/
Volume 1 / Issue 11 / 042)
All rights reserved by www.ijste.org
258
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