Design Of A Hudraulic Escalator

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ABSTRACT
An escalator is a moving staircase conveyor transport device for carrying people between floors of a building. The device consists of a motor-driven chain of individual, linked steps that move up or down on tracks, allowing the step treads to remain horizontal.
Escalators are used around the world to move pedestrian traffic in places where elevators would be impractical. Principal areas of usage are; shopping malls, airports, transit systems, convention centers, hotels, and public buildings.
The benefits of escalators are many. They have the capacity to move large numbers of people, and they can be placed in the same physical space as one might install a staircase. They have no waiting interval (except during very heavy traffic), they can be used to guide people toward main exits or special exhibits, and they may be weatherproofed for outdoor use.
Escalators are one of the largest, most expensive machines people use on a regular basis, but they're also one of the simplest.
 At its most basic level, an escalator is just a simple variation on the conveyer belt. A pair of rotating chain loops pull a series of stairs in a constant cycle, moving a lot of people a short distance at a good speed
The escalator that was designed for this project work was designed at an inclination angle of 30 deg.







TABLE OF CONTENTS

CHAPTER ONE

1.0 Introduction

1.1aims and objectives

1.2 statement of problem

1.3 relevance of the project

1.4 scope and limitation of study

1.5 Methodology

CHAPTER TWO
2.0 Literature review
2.1 History of inventors and manufacturers of escalator
2.2 An overview of escalators
2.3 Escalator configurations
2.4 Building elevator systems
2.5 Working principle
2.6 General elevator planning
2.7 Development process
2.8 Types of elevators
2.8.1 Traction elevators
2.8.1.2 Roping Arrangements
2.8.1.2.1 One to One roping (1:1) or Traction Drum Arrangement
2.8.1.2.2 Two to One Roping (2:1) or Lifting Drum Arrangement
2.8.1.3 Counterweight
2.8.1.4 Hoist Mechanisms
2.8.1.5 Geared type:
2.8.1.6 Gearless type
2.8.2 Hydraulic elevators
2.8.2.1 Basic Types of Hydraulic Elevators
2.8.2.2 Direct acting hydraulic lifts
2.8.2.3 Working Principle of Hydraulic Elevator
2.8.2.4 Suspended Hydraulic Lifts
2.8.2.5 Working Principle of the lift



CHAPTER THREE
3.0 Description of method
3.1 procedure for the design

CHAPTER FOUR
4.0  Design process
4.1 Basic requirements (design considerations)
4.2 Development of basic solution
4.3 Detail design
4.3.1 Design of the Gear
4.3.1.1Torque transmitted    
4.3.1.2Module and face width of gear
4.3.1.3No. of teeth and pitch circle diameter of each gear
4.3.1.4 Checking the gear for wear
Detailed Engineering Drawing
4.3.2.1 Drawing of the Escalator Geometry
4.3.2.2 Drawing of the face support details
4.3.2.3 Drawing of the building interface
4.3.3 Model size
4.3.4 Passenger safety features





CHAPTER FIVE
5.0 Conclusion and Recommendation

5.1 Conclusion

5.2 Recommendation

REFERENCES

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(2016, 08). Design Of A Hudraulic Escalator.. ProjectStoc.com. Retrieved 08, 2016, from https://projectstoc.com/read/7860/design-of-a-hydraulic-escalator-7425
"Design Of A Hudraulic Escalator." ProjectStoc.com. 08 2016. 2016. 08 2016 <https://projectstoc.com/read/7860/design-of-a-hydraulic-escalator-7425>.
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"Design Of A Hudraulic Escalator.." ProjectStoc.com. 08, 2016. Accessed 08, 2016. https://projectstoc.com/read/7860/design-of-a-hydraulic-escalator-7425.

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