1. 1
A PROJECT REPORT
ON
“VERTICAL SCREWDRIVE LIFTING MECHANISM”
SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF
DIPLOMA IN
MECHANICAL ENGINEERING
SUBMITTED TO
Gujarat Technological University, Gujarat
SUBMITTED BY
Sr. No. Enrolment No. Name
1 216180319088 Patel Zeel
2 216180319084 Panchal Nikhil
3 206180319096 Shaikh Ruhan
4 206180319087 Makwana Hardik
5 196180319001 Baria Dharmesh
GUIDED BY
(Mr.I.R.Padwani)
Government Polytechnic, Godhra (618)
(2023-24)
2. 2
Government Polytechnic, Godhra (618)
CERTIFICATE
This is to certify that the project report entitled “VERTICAL SCREWDRIVE LIFTING
MECHANISM “was successfully completed by Student of 5th
semester Diploma in
(mechanical engineering). in partial fulfillment of the requirements for the award of the
Diploma in Mechanical Engineering and submitted to the Department of Mechanical
Engineering of Government Polytechnic, Godhra work carried out during a period for the
academic year 2023-24 as per curriculum.
Sr. No. Enrolment No. Name
1 216180319088 Patel Zeel
2 216180319084 Panchal Nikhil
3 206180319096 Shaikh Ruhan
4 206180319087 Makwana Hardik
5 196180319001 Baria Dharmesh
Name of Guide Name of HOD
(Mr.I.R.Padwani) (Mr.S.M.Gandhi)
3. 3
ACKNOWLEGMENT
This project is done as a semester project, as a part course titled “VERTICAL
SCREWDRIVE LIFTING MECHANISM”.
We are really thankful to our institute principal Shri H M Patel sir and the head Shri
S M Gandhi sir, Mechanical Engineering Department, Government Polytechnic, Godhra
for their invaluable guidance and assistance, without which the accomplishment of the task
would have never been possible.
We also thank Mr.I.R.Padwani for giving this opportunity to explore into the real
world and realize the interrelation without which a Project can never progress. In our
present project we have chosen the topic “VERTICAL SCREWDRIVE LIFTING
MECHANISM”.
We are also thankful to parents, friend and all staff of Mechanical engineering
department, for providing us relevant information and necessary clarifications and great
support.
Patel Zeel 216180319088
Panchal Nikhil 216180319084
Shaikh Ruhan 206180319096
Makwana Hardik 206180319087
Baria Dharmesh 196180319001
4. 4
ABSTRACT
Our Project relates to Mechanical Lifting Mechanism performing on the Lead Screw Mechanism. Lift may
be a simple automaton that raise element or object from ground level to a particular height to perform a
selected work with maximum load and minimum efforts. This project describes the analysis of a mechanical
lifting mechanism which works on the principle of Lead Screw Mechanism. The design is developed
keeping in mind that the lift is operated by mechanical means in order that the cost of the lift is reduced. Our
Project relates to the accessories that will be included within the Design of a Mechanical Lifting
Mechanism, which is able to increase its Efficiency, Power, Safety and easy Working.
5. 5
TABLE OF CONTENT
CHAPTER
NO.
CHAPTER NAME PAGE NO.
TITLE PAGE 1
CERTIFICATE 2
ACKNOWLEGMENT 3
ABSTRACT 4
TABLE OF CONTENT 5
LIST OF TABLE 6
LIST OF FIGURE 7
1 SELECTION OF PROJECT 8`
2 PROJECT PLANNIG 11
3 INTRODUCTION 12
4 LITERATURE SURVEY 15
5 PROBLEM DEFINATION 17
6 DESIGN OF PROJECT 18
7 WORKING OF PROJECT 19
8 PARTS OF PROJECT 20
9 COST ESTIMATION 25
ADVANTAGES , DIS ADVANTAGES AND
APPLICATION
26
FUTURE SCOPE 27
CONCLUSION 28
REFRENCES 29
7. 7
LIST OF FIGURE
Sr. no. Figure name. Page no.
3.1 Different types of truck 14
6.1 Diagram of project 18
8.1 Frame 21
8.2 Bearing 21
8.3 Chain 22
8.4 Sprocket 22
8.5 Lead screw 23
8.6 Battery 23
8.7 DC Motor 23
8.8 Lifting Platform 24
8.8 Nut and bolt 24
8.9 Switch 24
-
8. 8
CHAPTER-1
SELECTION OF PROJECT
1.1 Introduction
Before selection of the project, collection of the technical data market survey has to be carried out. We have
to see whether a similar product is available in market or not so. We can produce a product in the industry
with more features at reasonable price.
Also we have to consider the feasibility as well as suitability of the manufacturing with our available
resources.
1.2 Resources of project
Resource planning is at the core of successful project delivery and organizational efficiency. It
ascertains that the right workforce with the right expertise is allocated to the respective projects.
Multinational corporations and growing businesses are investing substantially to streamline
their resource planning process. Like every other industry, engineering firms require a systematic
resource planning process. Engineering projects demand niche skill sets and need heavy
and expensive equipment during various stages of the project lifecycle. Resource managers and
project managers strive from the very beginning to identify the appropriate resources, understand
their availability, and fulfill these demands. If they fail to form a full-proof resource plan, they may
encounter bottlenecks in the future, bringing the projects to a halt. The sun energy available for solar
base project for better efficiency.
1.3 Detail of the Project
We had discussed about various project from the selection of the project. After visiting rural area and
website, we had discussed following projects.
1. Multi purpose power tools
2. Electromagnetic molding machine.
3. Pneumatic pipe vice.
4. Vertical Screw Drive lifting mechanism.
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Finally we had discussed “Vertical Screw Drive lifting mechanism” as mechanical screw base project
because we thought parameters like economical in cost, simple in construction, eco friendly with
environment, easy in fabrication and it includes better manufacturing process like machining, drilling,
facing, boring etc.
1.4 Characteristics of Project
1. Life of Span:
It has time to come an end and what represents it would normally be spelt out by in the set of
objectives.
2. Single Entity:
A project is one single entity and it normally entrusted to one responsibility centre while the
participants are many.
3. Team Work:
A major calls for the team work the team again is constituted of members belonging to different
disciplines organization and even countries.
4. Life Cycle:
A project has a cycles reflected by growth, maturity and delay it has naturally a learning
component.
5. Change:
A project sees many changes through out its life while some of these changes may not have any project
impact. there can be some changes which will changes the entire character or course of the project.
6. Successive Principle:
What is going to happen during the life cycle of project is not fully known at t6he any stage. The
detail get finalized successive with passage of the time more known about the project. When it
enters the construction phases that what was say during the detail engineering phase.
7. High level sub contracting:
A high percentages of work in this project is done through contraction, the complexity of the
extent of contracting, normally around 30% of work is done through sale-contractor.
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8. Risk and Uncertainty:
Every project has risk and uncertainty associated with if the degree of risk and uncertainty depends
upon how a project has passed through various life cycle phases.
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CHAPTER-2
PROJECT PLANNIG
Project planning is at the heart of the project life cycle, and tells everyone involved where you’re going and
how you’re going to get there. The planning phase is when the project plans are documented, the project
deliverables and requirements are defined, and the project schedule is created. It involves creating a set of
plans to help guide your team through the implementation and closure phases of the project. The plans
created during this phase will help you manage time, cost, quality, changes, risk, and related issues.
They will also help you control staff and external suppliers to ensure that you deliver the project on time,
within budget, and within schedule.
The basic processes of project planning are:
Scope planning – specifying the in-scope requirements for the project to facilitate creating the work
breakdown structure
Preparation of the work breakdown structure – spelling out the breakdown of the project into tasks
and sub-tasks
Project schedule development – listing the entire schedule of the activities and detailing their
sequence of implementation
Resource planning – indicating who will do what work, at which time, and if any special skills are
needed to accomplish the project tasks
Budget planning – specifying the budgeted cost to be incurred at the completion of the project
Procurement planning – focusing on vendors outside your company and subcontracting
Risk management – planning for possible risks and considering optional contingency plans and
mitigation strategies
Quality planning – assessing quality criteria to be used for the project
Communication planning – designing the communication strategy with all project stakeholders
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CHAPTER-3
INTRODUCTION
3.1 General
Considering the present Industrial Scenario, the Aerial Work Platforms employed into application are
giving the acceptable performance with their apparatus. Industries at the moment are using Hydraulic
as Pneumatically Operated Lifts. But as far as Cost and Safety is concerned, the Hydraulics as
Pneumatic Lifts lack in them. Thus, it becomes necessary for some Accessories, Safety Measures use
as an Alternate Mechanism to control the Lifts.
The Mechanically Operated Lifts is operated using two different Mechanisms, i.e., Rack & Pinion
Method in addition as Lead Screw Method. The Mechanical Methods gets Power from Electricity,
basically an Electrical Motor which converts the electricity of the Motor into K.E. of the lift, which
elevates the structure of the Platform in upward and downward position. The Accessories included
within the present invention consists of a Saddle Plate, A Blocking Mechanism, A Self-Locking Pair,
and Providing Multiple Sections for the Lifts similarly as A Controller Mechanism. the current
invention also demonstrates the Dynamic in addition as Static Stability of the Lift and a short Design
Procedure of the Mechanically Operated Lift performing on the principle of Lead Screw. the current
invention will increase the security Measures, Reliability, Efficiency yet as Performance of the
Mechanical Lifts to a particular extent.
The screw has a thread designed to withstand an enormous amount of pressure. This is due to the fact that it
is generally holding up heavy objects for an extended amount of time. Once up, they normally self lock so
that they won't fall if the operator lets go, and they hold up well to the wear of repeated use. If they are made
with a ball nut, they will last longer because there is less friction created with this type of jack. However,
they will not self lock. This can be dangerous and handled carefully.
3.2 Lifting
Lift is a simple mechanical device used to raise element or object from ground level to a certain height to
perform a specific work with maximum load and minimum efforts.
3.2.1 Similar Work
Nowadays there are hydraulic and pneumatic lift but in accidental cases or any technical problem it is
difficult to carry these systems as they are bulky and also need lot of maintenance but this mechanism is
portable and requires less maintenance as compared to pneumatic and hydraulic systems.
In this project, main focus is on power transmission mechanism. A material which is to be transferred to the
different floor will be transported using a Pulley and a power transmission mechanism operating
mechanically with the help of pedal driven mechanism.
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3.2.2 Expected Outcome
To make a few efforts in driving the mechanism and the stationary can be transported. It should work any
time. It should help reducing the problems related to power consumption, maintenance etc. Its main benefit
should be reduction in unnecessary cost, reduce the over design and design should be up to the mark. This
project illustrates many mechanical aspects like designing of the components such as casing, pulleys, chain
drive, modelling and analysis. Other aspects are design finalisation, fabrication and installation.
Following are the objectives expected to be fulfilled by the project:-
To design and analyse a material carrying cage for handling stationary.
To design and fabricate a power transmission mechanism and raise objects from ground floor to certain
height.
To fabricate and assemble all the major components.
To install the entire set up in the proposed location and carry the test run.
3.3 Different types of material handling truck
A hand truck, also known as a lifty wheely, dolly, stack truck, trundler, box cart, sack barrow, cart, sack
truck, two wheeler, or bag barrow, is an L-shaped box-moving handcart with handles at one end, wheels at
the base, with a small ledge to set objects on, flat against the floor when the hand-truck is upright.The
objects to be moved are tilted forward, the ledge is inserted underneath them, and the objects allowed to tilt
back and rest on the ledge. The truck and objects are then tilted backward until the weight is balanced over
the wheels, making otherwise bulky and heavy objects easier to move. It is a first-class lever.
Sack trucks were originally used in the 18th century to move large sacks of spices on docks by young boys,
from the age of 11, who were unable to lift the large sacks by hand. By using this method they were able to
work as well as grown men in moving items around.Later, such trucks were amended for use in many
different industries, such as brewing, where hops were moved in sacks.
Some hand trucks are equipped with stair climber wheels, which, as the name implies, are designed to go up
and down stairs. These stair climbing hand trucks have three wheels on each side that are always in contact
with stairs for added stability. Stair climber wheels can sometimes be problematic when trying to turn on flat
ground as four wheels in a fixed position will be in contact with the ground.
Hand trucks are fabricated from many different types of materials, including steel tube, aluminum tube,
aluminum extrusion and high impact plastics. Most commercial hand trucks used for beverage and food
service deliveries are rugged and very light. They are usually constructed from two extruded aluminum
channel side rails and cast aluminum or magnesium parts. Example of hand truck stair climber wheels Some
of the options that may be considered are the types of wheels, stair climber, handle type and size of wheels.
14. 14
Other things to be considered should be the load shape compared with the backrest shape, e.g., cylindrical
loads should sit on curved backrests, and the environmental conditions in which the hand truck will operate.
For example, on loose or uneven ground oversize wheels are a great advantage; solid or puncture-proof
foam filled tires may be used where punctures could deflate pneumatic tires.A rule of thumb is that the toe
or nose of the truck should be at least one-third of the length of the load. Hand trucks are sometimes used
as baggage carts by porters in train stations and skycaps at airports.
A trolley is small transport device used to move significant load from one place to another. In most of the
industries hand trolleys normally used to transport finished product or raw materials. Differing kinds of
trolley exist and also the type used is commonly chosen supported what kind of material it'll move.
For example: wheeled trolley, folding trolley, gardening trolley, sack trolley, kitchen trolley, etc. as shown
figure But these trolleys cannot use to move on stairs, rough surfaces etc. So, in such place there are going to
be a requirement of ascent trolley that reduce human efforts. In our project the trolley is provided with tri-
star wheels that alter us to hold load up & down the steps. It additionally eases the movement of trolley in
irregular surface like holes, bumps, etc. This trolley is that the hybrid of hand trolley & stairs rising trolley
which may be utilized in each functions i.e. carrying load on plane surface moreover as from rough surfaces.
Folding truck Kitchen truck
Garden Truck Sack Truck
Fig.3.1 different types of truck
15. 15
CHAPTER-4
LITERATURE SURVEY
[1] Ivan Sunit Rout, Dipti Ranjan Patra , Sidhartha Sankar Padhi, Jitendra Narayan Biswal, Tushar
Kanti Panda, Design and Fabrication of motorized automated Object lifting jack, With the increasing
levels of technology, the efforts are being put to produce any kind of work that has been continuously
decreasing. The efforts required in achieving the desired output can be effectively and economically be
decreased by the implementation of better designs. Power screws are used to convert rotary motion into
reciprocating motion. An object lifting jack is an example of a power screw in which a small force applied in
a horizontal plane is used to raise or lower a large load. In this fabricated model, an electric motor will be
integrated with the object lifting jack and the electricity needed for the operation will be taken from the d.c
battery and thereby the mechanical advantage will be increased.
[2] Shivam Agrawal , Siddharth Patil , Associate Professor Ms.Sneha Shirke“Lead Screw Mechanical
Lifting Mechanism” Our Project relates to an “Mechanical Lifting Mechanism” performing on the Lead
Screw Mechanism. Lift may be a simple automaton that raise element or object from ground level to a
particular height to perform a selected work with maximum load and minimum efforts. This project
describes the analysis of a mechanical lifting mechanism which works on the principle of Lead Screw
Mechanism. The design is developed keeping in mind that the lift is operated by mechanical means in order
that the cost of the lift is reduced. Also, such design can make the lift more compact and is suitable for
medium scale work. Conventionally a Mechanical lifting Mechanism is employed for lifting a vehicle,
Material handling in industry, Building elevator, home lift, and lots of other applications. Our Research
relates to the accessories that will be included within the Design of a Mechanical Lifting Mechanism, which
is able to increase its Efficiency, Power, Safety and easy Working.
[3] Bhavin H Mehta1, Mehul G.Joshi,Utsav M.Dholakiya “Design and Analysis of Screw Operated
Lifting Equipment” he project relates to the lifting equipment or more particularly to a scissor jack for
lifting a body to appreciable height that can be used for a various purpose like maintenance and many
material handling operations. The mode of operation can be a mechanical, pneumatic or hydraulic.
Mechanical mode of operation is suitable for the medium scale work, and precise range of application,
where elevation for extended period of time is required, precisely without drifting. So the project is aimed
with an objective to design the Screw Operated Lifting Equipment, for the maintenance purpose of the
building with ceiling height of 1.625 m along with four workmen each weighting 80 kg along with their
equipments. So this lifting equipment is designed for load carrying capacity of 500 kg keeping F.O.S
reference of research paper), which overcomes the limitations of the hydraulic scissor lift in Repeatable
positioning in the millimeter range even at high speed, maintaining the position with no drift at specified
16. 16
elevation for extended period of time, completely smooth motion and uniform speed, constant force and
lifting speed, low vibration and noise, etc.
[4] Peter Kayode Farayibi , Taiwo Ebenezer Abioye & Olagoke Zephaniah Ayodeji. “Development of
an automated mechanical lift for material handling purposes” In this paper, the development of an
automated mechanical lift for material handling purposes in a manufacturing environment was carried out
and reported. The lift was designed for a rated load capacity of 10 kg which required a 1-hp electric motor.
The power transmission was achieved using belt-pulley, worm gear and chain-sprocket mechanisms; and the
system automation was achieved using contactors and limit switches. The performance evaluation of the
system revealed that the relationship between the time required to raise and to return loads within a range of
5–15 kg through a distance of 1070 mm followed a third-order polynomial with high correlation coefficients
of 0.996 and 0.998 respectively. The trend polynomial curve that characterized the lifting behaviour was
found to have three regions. The first region had a slope of 0.25 sec/kg which decreased gradually to near
zero, the second region had a near-zero slope over a load range of 7–10.60 kg and a consistent travel time
of about 5.67 ± 0.03 sec, and the third region had a slopewhich increased from near zero to 0.64 sec/kg.
The automated mechanical lift developed could successfully carry out the vertical displacement of
materials, hence fulfilling the design purpose.
[5] DHRUV CHAUHAN J.,MIHIR DIXIT P.”DESIGN OF EFFICIENT POWER SCREW
ROLLER LIFT” In this world of emerging new technologies; it is very important to do work speedier,
convenient, and economical as well as efficiently. This project reflects lifting equipment which has a
mechanism which provides easier way to transfer goods especially in form of Sack, Barrels, and other
Packaging Units from dock of truck up to ground level and vice versa with negligible amount of man
power. The equipment could find its use mainly in ware-house/go downs. It can also be used significantly
in logistical material handling applications. Components consist of efficient use of automated Power Screw
transmission system with the help of DC motor and appropriate battery. On conclusive remark, the aim of
this project is to remove the problems faced in conventional transferring equipment’s used for material
handling.
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CHAPTER-5
PROBLEM DEFINATION
We need to reduce manual efforts of workers for material handling effortlessly. The main purpose of
material handling machine in industry is to ensure that the right amount of material is carefully delivered to
the desired destination at the right time and at minimum cost. By manual material lifting which will create
backbone problem and also time consuming so we can develop machine. Also pneumatic and hydraulic cost
is very high. In present work, the focus is given on the time period, comfort, advancement, low cost, and
mainly manual work is aimed to be reduced as much as possible. This project also take into consideration
the material used with minimum possible cost.
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CHAPTER-7
WORKING OF PROJECT
The machine is a lifting loads from lower level to upper level. When used properly, Machine can protect
people from back injuries and other health problems that can result from lifting heavy loads.The machine
consist of frame which is made up of steel square bars which are welded together to form a structure. The
machine consists of chain and sprocket mechanism with lead screw which is helpful in easy movement of
the weight at desired height for up down. An elevator platform is mounted to the Frame.
The Chain and sprocket mechanism are used to give motion to the lift for easy lifting of the weight or to
place the weight or parts at the required height in Industry. When we switch on the battery supply is given to
the motor and We can lift up and down weight by moving the lifting lead screw in clock wise and
anticlockwise direction.
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CHAPTER-8
PARTS OF PROJECT
SR. NO. COMPONENTS MATERIAL
1 Frame Mild steel
2 Bearing Stainless steel
3 Chain Mild steel
4 Sprocket Carbon steel
5 Lead screw Mild steel
6 Battery 7.6 AH,12v
7 DC Motor 12v
8 Lifting Platform Mild steel
9 Nut and bolt Mild steel
10 Switch Plastic
Table no. 8.1 Parts of Project
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1.Frame
Fig. 8.1 Frame
The total parts of the vertical lifting machine attached with Frame for supporting.
2. Bearing
Fig 8.2 Bearing
A bearing is a machine element that constrains relative motion to only the desired motion, and reduces
friction between moving parts. The design of the bearing may, for example, provide for
free linear movement of the moving part or for free rotation around a fixed axis;. Many bearings
also facilitate the desired motion as much as possible, such as by minimizing friction. Bearings are classified
broadly according to the type of operation, the motions allowed, or to the directions of the loads (forces)
applied to the parts.
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3.Chain drive
Fig. 8.3 Chain drive
Chain drive is a way of transmitting mechanical power from one place to another. It is often used to convey
power to the wheels of a vehicle, particularly bicycles and motorcycles. It is also used in a wide variety of
machines besides vehicles. Most often, the power is conveyed by a roller chain, known as the drive chain or
transmission chain, passing over a sprocket gear, with the teeth of the gear meshing with the holes in the
links of the chain. The gear is turned, and this pulls the chain putting mechanical force into the system.
Chain drive is used for transmitting mechanical power from one place to another place. It is often used to
convey power to the wheel of vehicle. The power is transmitted by roller chain, known as the chain drive.
4.Sprocket
Fig,8.4 sprocket
A sprocket or sprocket-wheel is a profiled wheel with teeth or cogs that mesh with a chain, track or other
perforated or indented material. The name "sprocket" applies generally to any wheel upon which are radial
projections that engage a chain passing over it. It is distinguished from a gear in that sprockets are never
meshed together directly, and differs from a pulley in that sprockets have teeth and pulleys are smooth.
Sprocket are used in bicycles, motorcycles, cars, tracked vehicles and other machinery to transmit rotary
motion between two shafts where gears are unsuitable or to a track. They can be run at high speed and some
forms of chain are so contracted as to be noiseless even at high speed.
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5.Lead screw
Fig,8.5 Lead screw
A lead screw is a screw which translates rotary motion into linear motion. Normally used as the driving
mechanism in horizontal or vertically driven applications aided by linear guides for supports. They are
described by diameter and pitch or lead. The pitch or lead is the amount of travel you get, or distance the nut
travels along the screw for every complete revolution. They can be operated manually or motorized.
6.Battery
Fig.8.6 Battery
It is used to start the motor with the help of switch.it is also used to store the electricity.
7.Dc motor
Fig.8.7 DC Motor
An electric motor is an electrical machine that converts electrical energy into mechanical energy.It is used to
rotate the lead screw in clockwise and anticlockwise direction.
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8.Platform
Fig.8.8 Platform
It is used for holding the weight.
9.Nut and Bolt
Fig.8.10 Nut and Bolt
A nut is a type of fastener with a threaded hole. Nuts are almost always used opposite a mating bolt to fasten
a stack of parts together. The two partners are kept together by a combination of their threads' friction, a
slight stretch of the bolt, and compression of the parts. In applications where vibration or rotation may work
a nut loose, various locking mechanisms may be employed Adhesives, safety pins or lock wire, nylon
inserts, or slightly oval-shaped threads.
In normal use, a nut-and-bolt joint holds together because the bolt is under a constant tensile stress called the
preload. The preload pulls the nut threads against the bolt threads, and the nut face against the bearing
surface, witha constant force, so that the nut cannot rotate without overcoming the friction between these
surfaces.
10.Switch
Fig.8.10 Switch
It is used to on/off the Motor.
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ADVANTAGES , DISADVANTAGES AND APPLICATION
ADVANTAGES
It is not occur in noise and vibration.
Skilled personnel are not require.
Easily operated
Time saving
To reduce human efforts
To reduce injury while heavy weight lifting
DISADVANTAGES
Intial cost is high
Operater can be required during operation period.
Slow in operation as compare to automatic machine.
APPLICATION:
It is use in workshop
It is very useful in all small scale industries.
It is used in railway ststion,busstand and airport.
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FUTURE SCOPE
1. In a future this machine can be operated by using Pneumatic system..
2. this machine can be operated by solar energy.
3. we can use Sensor system.
28. 28
CONCLUSION
In this Project, a Mechanical lifting Mechanism driven by a Lead screw mechanism has been fabricated. To
verify the feasibility and accuracy, a prototype has been made, and then an experiment has been conducted.
The proposed mechanism is capable of increasing capacity; reducing input effort; saving cost of operation
and requires simple maintenance compared to hydraulically and rope driven lifting mechanisms of
Mechanical lift.During the test run of this project, it was realized that it wouldn’t be a bad idea to consider
this project for carrying heavy loads up the platform level.
29. 29
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[2] V. B. Bhandari, “Design of Machine Element”, Tata McGraw-Hill, 3rd edition, 2010.
[3] S. S. Ratan, Theory of Machine, Tata McGraw-Hill, 3rd edition, 2009.
[4] B. L. Theraja, “Electrical Techonology”, S. Chand Publications, 23rd edition
[5] Kalaikathir Achchagam, “Design Data- Data Book of Engineers”, P.S.G. College of Technology,
Coimbatore.
[6] FAN Jie et al, “Design of an Electric Forklift”, Computer Aided Drafting and Manufacturing, Vol. 25,
No. 3,September 2015, pp – 39-42
[7] Yogendra Panta et al, “Static Analysis of a Forklift”, ASEE North Central Section Conference, American
Society for Engineering Education, 2015, pp- 1-12
[8] Sachin Ugale et al, “Design, Development and Modelling of Forklift”, International Journal of
Engineering Research & Technology, ISSN: 2278-0181, Vol. 3, Issue 4,
April 2014, pp- 1234-1238
[9] Sachin Ugale et al, “Design and Structural Analysis of Mechanical Forklift using ANSYS Software”,
International Journal of Research in Advent Technology,
E-ISSN: 2321-9637, Vol. 2, No. 5, May 2014, pp-234-237
[10] R. S. Krishna et al, “Design and buckling strength evaluation of a lifting beam”, International Journal of
Engineering Research and Science & Technology, ISSN: 2319-5991, Vol. 3, No. 4, November 2014, pp-
184-189