I JSRD - I nternational Jour nal for Scientifi c Re se arch & Development| Vol. 3, I ss ue 10, 201 5 | I SSN ( onli ne): 2321-0 613 All rights reserved by www.ijsrd.com973 A Study on “Design Optimizati on of Roller Conveyor Chain Link Plate by Using Topological Approach”Mr. Patil Nilesh Anandrao 1 Mr. Arun M. 2 1 M.E. Design 1,2 Flora Institute of Technology, Khopi, Pune Abstract—According to the relevance towards the state priorities the economy of Maharashtra s tate is do minated by agricultural as well as industrial sector. Sugar factories play an important role in economy of Maharashtra state. About 60 percent processes in these factories are based on roller chain conveyors. Apart from that, other industries also use these chains frequently for process atomization. However, failure of these chains is perennial problem in these industries which causes huge losses to these industries along with its dependents and in turn economic growth of the state. Material uncertainty plays an important role on formation of elastic and plastic stresses. Breakage of chain is also affected due to faulty manufacturing such as wall thickness of link, breaking area of links, bending movement of pin, inner width of chain and shape of the link and uncertainty in heat treatment. Roller conveyor chains are the critical component in sugar mills, paper mill, food processing, fertilizer industry, pharmaceutical industry, cement industry, foundry industry, heat treatment units, coal mines etc. From the previous studies, it can be noted that, even though several patents are filed on roller chains and conveyors, most of the patents are based on metallurgical investigation, improvement of efficiency and performance of chain. Hardly few patents are there on improving life of the chain and minimization of its failure. From the chain failure case studies it can be noted that the root cause of failure was faulty material processing, heat treatment and improper material selection. Key words:Roller chain conveyor, Sugar Factory, link plate, FEA, shape optimization I.I NTRODUCTIONChains have been used for centuries to drive machines and move materials on conveyors. A chain is a reliable machine component, which transmits power by means of tensile forces, and is used primarily for power transmission and conveyance systems. The function and uses of chain are similar to a belt. They have clear advantages over belts in terms of performance and efficiency. Automation and standardization are the two major factors combined to make the roller chain industry what it is today. Roller chains have a long history as mechanical elements for transmission. From a theoretical viewpoint chain is a continuous flexible rack engaging the teeth on a pair of gears. Certainly a sprocket being a toothed wheel, whose teeth are shaped to mesh with a chain, is a form of gear. Based on its history and development, chain is a mechanical belt running over sprockets that can be used to transmit power or convey materials. Most of the time chain is under tension which causes elastic and plastic stresses which results into elongation of chain. Chain is the most important element of the industrial processes required for transmitting power and conveying of materials. As these chains operate under various forces, failure of chain assembly is the major problem. Causes of these failures are improper material selection, uncertainties in manufacturing, faulty manufacturing processes. It is important to study the influence of these parameters on the strength of the chain which governs the failure modes of the chain. Chains are used in a variety of applications in engineering practice. In general, there are three basic types of system; hoisting and securing chains, conveying and elevating chains and power transmission chains. Conveyors chains are used when material are to be moved frequently between specific points. Depending on the materials to be handled and the move to be performed, a variety of conveyors can be used. Conveyors can be categorized on the basis of the type o f product being handled (bulk or unit) and the locations of the conveyor (overhead or floor). Bulk materials such as grain, dry chemicals, ores, minerals, coal saw dust can be conveyed using a chute, belt, and bucket or vibrating conveyors. Unit materials such as castings, machined parts, and materials placed on pallets, cartons or boxes can be conveyed using chute, belt and roller wheel. Depending on the materials to be handled and the move to be performed, a variety of conveyors can be used. Conveyors can be categorized on the basis of the type of product being handled (bulk or unit) and the locations of the conveyor (overhead or floor). Bulk materials such as grain, dry chemicals, ores, minerals, coal saw dust can be conveyed using a chute, belt, and bucket or vibrating conveyors. Conveyor systems are used widespread across a range of industries due to the numerous benefits they provide. Conveyors are able to safely transport materials from one level to another, which when done by human labour would be strenuous and expensive. They can be installed almost anywhere, and are much safer than using a forklift or other machine to move materials. They can move loads of all shapes, sizes and weights. Also, many have advanced safety features that help prevent accidents. There are a variety of options available for running conveying systems, including the hydraulic, mechanical and fully automated systems, which are equipped to fit individual needs Fig. 1: Shows the typical roller chain link assembly
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A Study on Design Optimization of Roller Conveyor Chain Link Plate by Using Topological Approach
According to the relevance towards the state priorities the economy of Maharashtra state is dominated by agricultural as well as industrial sector. Sugar factories play an important role in economy of Maharashtra state. About 60 percent processes in these factories are based on roller chain conveyors. Apart from that, other industries also use these chains frequently for process atomization. However, failure of these chains is perennial problem in these industries which causes huge losses to these industries along with its dependents and in turn economic growth of the state. Material uncertainty plays an important role on formation of elastic and plastic stresses. Breakage of chain is also affected due to faulty manufacturing such as wall thickness of link, breaking area of links, bending movement of pin, inner width of chain and shape of the link and uncertainty in heat treatment. Roller conveyor chains are the critical component in sugar mills, paper mill, food processing, fertilizer industry, pharmaceutical industry, cement industry, foundry industry, heat treatment units, coal mines etc. From the previous studies, it can be noted that, even though several patents are filed on roller chains and conveyors, most of the patents are based on metallurgical investigation, improvement of efficiency and performance of chain. Hardly few patents are there on improving life of the chain and minimization of its failure. From the chain failure case studies it can be noted that the root cause of failure was faulty material processing, heat treatment and improper material selection.
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7/21/2019 A Study on Design Optimization of Roller Conveyor Chain Link Plate by Using Topological Approach
I JSRD - I nternational Journal for Scientifi c Research & Development| Vol. 3, I ssue 10, 2015 | ISSN (onli ne): 2321-0613
All rights reserved by www.ijsrd.com 973
A Study on “Design Optimization of Roller Conveyor Chain Link Plate
by Using Topological Approach”
Mr. Patil Nilesh Anandrao1 Mr. Arun M.
2
1M.E. Design1,2Flora Institute of Technology, Khopi, Pune
Abstract — According to the relevance towards the state
priorities the economy of Maharashtra state is dominated by
agricultural as well as industrial sector. Sugar factories play
an important role in economy of Maharashtra state. About60 percent processes in these factories are based on roller
chain conveyors. Apart from that, other industries also use
these chains frequently for process atomization. However,
failure of these chains is perennial problem in these
industries which causes huge losses to these industries along
with its dependents and in turn economic growth of the
state. Material uncertainty plays an important role on
formation of elastic and plastic stresses. Breakage of chain
is also affected due to faulty manufacturing such as wall
thickness of link, breaking area of links, bending movementof pin, inner width of chain and shape of the link anduncertainty in heat treatment. Roller conveyor chains are the
critical component in sugar mills, paper mill, food
mines etc. From the previous studies, it can be noted that,
even though several patents are filed on roller chains andconveyors, most of the patents are based on metallurgical
investigation, improvement of efficiency and performance
of chain. Hardly few patents are there on improving life of
the chain and minimization of its failure. From the chain
failure case studies it can be noted that the root cause of
failure was faulty material processing, heat treatment andimproper material selection.
Key words: Roller chain conveyor, Sugar Factory, link plate,
FEA, shape optimization
I. I NTRODUCTION
Chains have been used for centuries to drive machines and
move materials on conveyors. A chain is a reliable machine
component, which transmits power by means of tensile
forces, and is used primarily for power transmission andconveyance systems. The function and uses of chain are
similar to a belt. They have clear advantages over belts in
terms of performance and efficiency. Automation and
standardization are the two major factors combined to makethe roller chain industry what it is today. Roller chains have
a long history as mechanical elements for transmission.
From a theoretical viewpoint chain is a continuous flexible
rack engaging the teeth on a pair of gears. Certainly a
sprocket being a toothed wheel, whose teeth are shaped to
mesh with a chain, is a form of gear. Based on its history
and development, chain is a mechanical belt running over
sprockets that can be used to transmit power or convey
materials. Most of the time chain is under tension which
causes elastic and plastic stresses which results into
elongation of chain. Chain is the most important element of
the industrial processes required for transmitting power and
conveying of materials. As these chains operate undervarious forces, failure of chain assembly is the major
problem. Causes of these failures are improper material
selection, uncertainties in manufacturing, faulty
manufacturing processes. It is important to study the
influence of these parameters on the strength of the chainwhich governs the failure modes of the chain.
Chains are used in a variety of applications in
engineering practice. In general, there are three basic types
of system; hoisting and securing chains, conveying and
elevating chains and power transmission chains. Conveyors
chains are used when material are to be moved frequently
between specific points. Depending on the materials to be
handled and the move to be performed, a variety of
conveyors can be used. Conveyors can be categorized on the
basis of the type of product being handled (bulk or unit) andthe locations of the conveyor (overhead or floor). Bulkmaterials such as grain, dry chemicals, ores, minerals, coal
saw dust can be conveyed using a chute, belt, and bucket or
vibrating conveyors. Unit materials such as castings,
machined parts, and materials placed on pallets, cartons or
boxes can be conveyed using chute, belt and roller wheel.
Depending on the materials to be handled and the move to be performed, a variety of conveyors can be used.
Conveyors can be categorized on the basis of the type of
product being handled (bulk or unit) and the locations of the
conveyor (overhead or floor). Bulk materials such as grain,
dry chemicals, ores, minerals, coal saw dust can be
conveyed using a chute, belt, and bucket or vibratingconveyors. Conveyor systems are used widespread across a
range of industries due to the numerous benefits they
provide.
Conveyors are able to safely transport materials
from one level to another, which when done by human
labour would be strenuous and expensive. They can be
installed almost anywhere, and are much safer than using a
forklift or other machine to move materials. They can move
loads of all shapes, sizes and weights. Also, many have
advanced safety features that help prevent accidents. There
are a variety of options available for running conveyingsystems, including the hydraulic, mechanical and fully
automated systems, which are equipped to fit individualneeds
Fig. 1: Shows the typical roller chain link assembly
7/21/2019 A Study on Design Optimization of Roller Conveyor Chain Link Plate by Using Topological Approach