01 .INTRODUCTION

1.1Company Introduction

SHRIYA INDUSTRIES is an  ISO 9001:2008 certified company established in 2010 and engaged in design, manufacture, supply & installation of mass transfer equipment. Shriya Industries core strength of technical capabilities & expertise has been developed under the expert tecnocraft. During this time, SHRIYA INDUSTRIES has grown to become Asia’s preferred mass transfer solutions company. Our record of quality in design, manufacture & timely delivery of mass transfer products has been consistently demonstrated to history. Our strong suit is our well-trained, experienced and expert engineers and work force. Our familiarity and experience in the world of engineering will fetch you with superior quality of good and cost effective solutions. Our meticulous machining capability helps us to provide fantastic solutions to rigid manufacturing challenges. Our Engineers, technicians and skilled work force enable us to maintain the superior quality of our services and sound delivery of product.

1.2 PRODUCT

SHRIYA INDUSTRIES  An ISO 14001:2004 & 9001: 2008 Accredited

Organization offers very wide range of products required for efficient handling of

materials.

Heavy Duty EOT Crane

The Heavy Duty EOT Crane are used for material handling applications in various

industries and warehouses. These cranes are designated by employing most

sophisticated technologies and premium grade robust raw material. Our cranes are

available in various sizes, load bearing capacities and specifications to meet with

the divergent requirements of our patrons.

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Heavy Duty Jib Crane

Heavy Duty Jib Crane is widely utilized for handling different materials in various

industrial manufacturing, assembling and warehousing processes. To ensure high

accuracy in operation, it is developed with wall or column mounted support.

Heavy Duty Gantry Crane

We design Heavy Duty Gantry Crane specially to cater the divergent material

handling requirements of our patrons engaged in different domains. Our cranes are

extremely user- friendly in working with higher precision. These can also be

customized as per the specific requirements of factories and warehouses.

1.3 Project Introduction

There are various material handling equipments which are used in various

industries. The major use of these systems is transportation of worked products

from one working zone to next working zone.The use of these systems becomes

necessary when it comes to heavy products as it is not possible to handle such

types of products manually. These systems are really convenient as they reduces

human efforts and meanwhile decreases time required for transportation and

handling. Also these systems are reliable and easy to operate.

Shriya Industries giving solution for material handling by designing customize

crane These cranes are significantly developed in compliance with industrial

standards for various overhead applications in different industries such as

warehousing and general manufacturing. These are safe and reliable and require

minimum maintenance. These cranes are used in variety of industries such as

marine operations, automotive, aeronautical, shipping, steel handling, paper mills

and refuse treatment

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02 .MOTIVATION

Jib Cranes are industrial machines which mostly uses for materials movements in construction of buildings, production halls, assembly lines, storage areas, and power plants. The design features of jib crane vary widely according to their major operational and manufacturing specifications such as: crane structure according to motion, weight and type of the load, crane location, geometric features, and environmental conditions. However, a review of the available literature tells that technical design of jib cranes are highly saturated and standardized in many industrial companies and organizations independent of the jib crane type.

Consideration of the available technology that is mainly based on the accumulated previous experience is important for better performance, higher safety and more reliable designs. It is well known that generic features of jib crane components are similar for various different types of cranes. Since the jib crane design procedures are highly standardized with these components, main effort and time spent in jib crane design projects are mostly for interpretation and implementation of the available design. In the initial stage the project overview and scope of project is analyzed. Further on the literature based on the current design is reviewed.

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03 .OBJECTIVE

In this project we are designing jib crane for press industries for loading tools the

requirement of client is as follows

Manufactory Company: (free standing jib crane)

1. Capacity of jib crane: 5 tonnes= 5000kg

2. Span length: 6.096 m

3. Overall height: 4.572 m

4. Height under boom: 3.658m

5. Mast: D= 406.4 mm

6. Trolley model: 311D‐1423, weight: 374.21kg (For 5 tonnes Jib crane)

Wheelbase: 232mm=0.232m

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03 .METHODOLOGY

The underlying layout of a jib cranes consists of a solid boom shackled to a fixed

pivot point. In turn, this pivot is securely mounted onto a wall or on top of a

freestanding column. This pivot moves freely, allowing 180 or 360‐degree rotation,

and a wide arc of operation. The lifting is performed by an incorporated pulley or

motorized chain hoist, which can slide along the book and offer a large footprint of

operation. Free standing and mast type jib cranes offer 360‐degree rotation. Wall

mounted types offer 200‐degree rotation. Design of jib crane includes structural

design, mechanical design and electrical equipment design part. In this case, it

focused on structural design for jib crane, such as steel girder, steel mast, base

plate, bolts design.

TYPES OF JIB CRANES

Free standing jib crane

Wall mounted jib crane

Wall bracket jib crane

3.1 .JIB CRANE

A jib crane is a type of crane where a horizontal member (jib or boom), supporting

a moveable hoist, is fixed to a wall or to a floor‐mounted pillar. Jib cranes are used

in industrial premises and on military vehicles. The jib may swing through an arc,

to give additional lateral movement, or be fixed. Similar cranes, often known

simply as hoists, were fitted on the top floor of warehouse buildings to enable

goods to be lifted to all floors. The two degrees of freedom in the horizontal plane

are provided by the wheels provided, while the third, vertical degree of freedom is

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provided by a hoist. Because of low cost and versatile use, there is a very good

application for the jib cranes.The designing and fabrication of this portable jib

crane uses application of mechanics of solids ,manufacturing technology and

various subjects of mechanical engineering.

3.2 Jib Crane Parts

Jib and Frame

The main components of jib crane are frame and jib. The frame includes the base

of the crane and the vertical column which is connected to the base. The jib is an

inbuilt portion of the column. The material of the frame should be tough enough to

withstand the normal shock load and high bending stresses produced during the

loading and transporting. The material of the frame selected was mild steel. The

mild steel holds the required properties and it is easily available and also cost

effective.The jib is the horizontal arm which is connected to the vertical column by

welding. The jib, vertical column and the base together withstand the bending

stress produced by the load. The design of the jib is done such that the stress

induced will be almost equal throughout the jib span.

Electric motor

Motor is the power source for loading operation. 240 V Single phase, AC

motor of power rating 250 W is selected for the requirements. There is a forward

and reverse switch for controlling the motor in both directions. The motor is

connected to the winding drum through gear set.

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Gear Set

The gear set is used to get the reduced speed to the rope drum from the electric

motor. The reduced speed is used for lifting the objects slowly. The gear set is

having a gear ratio of 320.This gear ratio is obtained by two worm gear sets of gear

ratios 16 and 20.worm gear is selected because it is non-return type. Major

problems with the worm gear are less efficiency and high noise

Winding Drum

The function of drum is to wind the rope during loading. The winding drum

should withstand the load torque and the bending moment acted upon it. Material

of drum is mild steel .the drum is connected to the gear shaft in one side and

opposite side is connected to the frame through ball bearing.

Pully

The pulley acts as a guide way for the movement of the rope. The material of

the pulley is sand cast iron. The outer diameter is 10cm and the inner diameter is

1.5cm. Here totally four pulleys are used.

Wheel

Wheels are attached to the base of the crane for mobility of the jib crane. Here

totally four wheels are used. The front wheels are fixed type and back wheels are

revolving type. Since the crane is moved by pushing from the rear side, the

revolving type wheels make the steering easier. Each wheel is having a capacity to

carry 2000 kg

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Rope

The function of rope is to transmit the rotary motion of drum to the linear

vertical motion of the hoist. The load in the rope is completely tensile. High

contact stress will be induced during the winding on drum and pulley. The selected

material of rope is wire steel. The diameter of the rope is 0.8mm.

Hook

Hook is used to hold the materials to be lifted. The material of the hook is

forged iron. The capacity of the specific hook is 8 tonne.

Jib crane

3.3 DESIGNING CRITERIA FOR SELECTING JIB CRANE

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Design of jib crane is based on indian standards specifications.Steel structure

components design of jib crane should follow indian steel structure design code

which is Handbook of Steel Construction.Design of jib crane includes structural

design, mechanical design and electrical equipment design part. In this case, it

focused on structural design for jib crane, such as steel girder, steel mast, base

plate, bolts design.

APPLICATION -The crane must be suited to specific application. If you want to

stack bags of grain onto pallets, you would have a very different crane than

someone who wanted to lift a wooden board into a routing machine. When

speaking to a crane engineer, we should specify how much the product weighs as

this will determine the safe working load, or SWL, of the crane. They should also

find out where the product want to move , and from where. Also, the duty cycle of

the crane is an important consideration. Will the crane be working 24 hours per

day, seven days per week, It is important to make sure the engineer has all the

details of the needs so that they can put together a crane that suits unique

application.

FACILITIES - When determining the type of crane and how it will be installed, it

must take into consideration the limitations of the facilities. If it is a roof or wall

mounted crane, you must make sure the building is suitable to bear the loads; if

you are looking at a freestanding crane, the floor must be similarly assessed.

Although you will only have to do it once, crane installation should also be taken

into consideration. If you have to close down your factory for several days while

someone installs a crane, you will lose a significant amount of working hours and

therefore finished products. Once the type of crane is determined, then

manufacturing needs should be taken into consideration. And the crane must suit

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your current production line. The crane might need it to move things around bends.

All of these needs must be taken into account when selecting a crane.

DESIGN -Since a numerous designs are available for the jib cranes, it is much

relevant to select jib cranes according to specific applications. The design may

vary with types of jib, methods of mounting, modes of motion or rotations etc.

QUALITY - The jib crane must be able to handle everything in terms of lifespan

and duty cycle. Some additional points that are taken into consideration are the

consistency of the material used in the construction of the crane, the in-house

quality control of the manufacturer, and the testing process.

COST - The price of the crane is one important factor. It must also add in the cost

of installation, maintenance, and future needs. As mentioned before, every hour

your factory is closed down for installation is an hour that can’t be spent

manufacturing your product. Then it is even required to pay for extra labour if the

installation requires special tools or welding.

ACCOMMODATING THE FACILITIES - The jib crane should suite for the

existing facilities in the work area. So the type, dimensions, size of jib crane should

be suited for the available work space.

TYPES - The general types of jib cranes available are: floor mounted type, wall

mounted type, portable type etc.

4.APPLICATIONS,ADVANTAGES AND DISADVANTTAGES

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APPLICATIONS

1) Jib cranes are arranged, for example, in shipbuilding yards for use in

transportation of heavy burdens.

2) A jib crane is provided which can prevent an unexpected movement of a burden

and can sufficiently ensure the safety of a burden handling work.

3) The major strength is its stability and flexibility of the device.

4) It is ideal for lifting a product to or from material handling system to a work

station or machine.

5) Jib crane is commonly used for workstation and simple loading/unloading

operations where it is not necessary to spot a load precisely.

6) Jib cranes most often handle lighter loads at lower duty cycles than their bridge

and gantry crane counterparts

ADVANTAGES

It can be used in a massive number of areas from vehicle garage to dockyards ,construction site to ware houses

They may be even present in smaller version on the back of lorries for loading and unloading

Jib cranes are suitable for most places due to the fact that they take up minimal

They take up minimal space but primarily they present a much quicker and safer way lifting objects

Less personnel injuries

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It can save expenditure by allowing the job to be finished quicker and by reducing time off for accidents and all the implications that may arise from them

So together with the large variety of possibilities and accessories offered, the jib crane is a hugely adaptable lifting piece of equipment ,suitable for many lifting and placing application in the majority of areas

DISADVANTAGES

It is designed for positioning a work piece or total ,rather than for moving a product along in the work flow like an overhead crane

It is also unsuitable to use when there is a need for precise locating of heavy loads ,a large area of hook coverage or frequent use for heavy loads

The hook coverage is limited to the boom length (typically a maximum of 20ft).the hook operates along a boom which rotates about a fixed point

5. CONCLUSIONS

The difference between jib cranes and other kinds of crane is that a jib crane is a free standing device that usually sits on its own pedestal. These cranes look and

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function like the mobile cranes seen at construction sites and elsewhere. They have a motor usually contained in a base and a long arm that takes the hook over the object to be lifted. As on mobile cranes the arm can be moved into position to pick up an object then moved again to transfer it to a location. Jib cranes can either be manually operated or motorized depending the weight of the loads lifted.

The biggest advantage to using a jib crane is that no overhead structure is required. This means that no costly engineering work may be needed. Also a jib crane can be transferred from one location to another with much engineering or construction work. It can simply be moved via a forklift or other such device. The can be used outside without a gantry. This makes it ideal for loading or unloading trucks. Such cranes will also be quite a bit cheaper than overhead cranes or gantry cranes. They will be cheaper because no structure will be needed for them. No complex structure of machinery will be required either.

REFERENCES

1. Al- Ajmi , M.S, T.G. Abu-El Yazied , S.Y. Abu-El- Hagag. 2010. Dynamic Modeling and load Sway Simulation of Jib Cranes.10 (1): 33-39

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2. Al-Fares, F.S., T.G. Abu-El-Yazied, H. AlMubarak and M.S. Al-Jjmi, 2010. ElectroMechanical Modelling and Sway Simulation ofContainer Cranes with Hoisting. Australian Journal of Basic and Applied Sciences, AJBAS-4(2): 265-273.

3. Baker J. “Cranes in Need of Change”, Engineering, v. 211, n. 3, p. 298. 1999.

4. Basu A., Majumdar A. K., Sinha S., “An Expert System Approach to Control System and Analysis”, IEEE Trans. on Systems, Mans and Cybernatics, v. 18, n. 5, pp. 685-694, 2009.

5. Erden Z., Erkan M. and Erden A., “A Computer Based Design Support System for Automate Access to the F. E. M. Rules in a Crane Design Procedure”, Proceedings of the 7th International Machine Design and Production Conference, pp. 575-583, Ankara, Turkey 1996.

6. H. D. HESS,1991, Machine Design of Hoists, Derricks ,Cranes , Cornell University , Philadelphia, U.S.A.

7. The Design and Construction of an Intelligent Power Assist Jib Crane, Harry M. Pearce.

8. Unsal (Erden), Z. and Erden, A., Computer Automated Access to the “F.E.M. Rules” for Crane Design, Proceedings of the International Conference on Engineering Software, pp. 135-142, Stafford, UK 1993.

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