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Analysis and fabrication of the model of a crane with pneumatic lift

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  1. Chapter 1
    1. Introduction
    2. Project aim
    3. Methodology
    4. Overview
    5. Relevance of Project
  2. Chapter 2
    1. Crane history
    2. Development of the cranes
    3. Ancient Roman cranes
    4. Medieval cranes
    5. Origins
    6. Structure and placement
    7. Mechanics and operation
    8. Harbor cranes
    9. Lifting capacity
    10. Stability of crane
    11. Types of cranes
    12. Desining of crane
  3. Chapter 3
    1. Principle of lift
    2. Force
    3. Pressure
    4. Range
    5. Fluid
    6. Fluid dynamics or hydrodynamics
    7. Incompressable and frictionless flow
    8. Working
  4. Chapter 4
    1. Solenoid valve
    2. Types of soleniode valve
  5. Chapter 5
    1. Electronic circuit description
    2. Resistors
    3. The tolerance
    4. The power rating
    5. Resistor markings
    6. Variable resistors
    7. Transistors
    8. Zener diode
  6. Chapter 6
    1. Working
  7. Chapter 7
    1. Analysis of the various parts of the crane with pneumatic lift
    2. Defination and theory
  8. Future prospects
  9. Refrences

Within this dissertation, the manufacturing and fabrication of a prototype of a crane with a pneumatic lift is explained with the help of detailed diagrams. The project is held to covert each and every drop of theoretical knowledge into a crude conceptual and practical work. This introductory chapter will outline and discuss the aim, methodology and general overview of the research, design and constructions of the crane with pneumatic lift. A lift crane having enhanced lifting capability includes a self-installing counterweight system which utilizes actuators forming parts of a counter weight assembly for raising the rear of the crane. A pair of slid able counterweight beams are slid ably supported within main frame members forming part of the upper works of the crane and have their outer ends attached to the counterweight. Fluid pressure operated actuators within the frame members extend and retract the beam in order to move the counterweight rearward with respect to the crane. The upper works also includes spaced-apart, parallel frame members each with a pair of spaced-apart vertical side plates with integral flange sections extending upwardly. The flanged section includes mounting locations for hoist machinery which utilize pins for easily mounting and dismounting the equipment. Drip pans including drain plugs are provided and located.

The aim of this project is to learn the importance of planning and tacking things slowly and to investigate possible solutions before hand to overcome obstacles as they appear. We have learned a lot about the implementation of theoretical concept in the world around us. We feel that we have learnt a lot about mechanical engineering in general, and construction techniques. This project includes selection of frame, loading upon frame, analysis of various loads during loading and unloading, control mechanism, hook selection, motor, details and other mechanical operations for the safe operation of the crane.

[...] The first is that the crane must be able to lift a load of a specified weight and the second is that the crane must remain stable and not topple over when the load is lifted and moved to another location Lifting capacity Cranes illustrate the use of one or more simple machines to create mechanical advantage. The lever. A balance crane contains a horizontal beam (the lever) pivoted about a point called the fulcrum. The principle of the lever allows a heavy load attached to the shorter end of the beam to be lifted by a smaller force applied in the opposite direction to the longer end of the beam. [...]


[...] General layout Parts of a crane with pneumatic lift Analysis of loading and unloading of objects Motor details Hook selection 1.4 Overview For many centuries, power was supplied by the physical exertion of men or animals, although hoists in watermills and windmills could be driven by the harnessed natural power. The first 'mechanical' power was provided by steam engines, the earliest steam crane being introduced in the 18th or 19th century, with many remaining in use well into the late 20th century. [...]


[...] one with a stated (called nominal) value of 100? and a tolerance of could have any value between 90? and 110? THE POWER RATING If the rate which a resistor changes electrical energy into heat exceeds its power rating, it will overheat and be damaged or destroyed. For most electronic circuit 0.25 Watt or 0.5 Watt power ratings are adequate. The greater the physical size of a resistor the greater is its rating THE STABILITY This is the ability of a component to keep the same value as it ?ages' despite changes of temperature and other physical conditions. [...]

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