Preview

Gantry Cranes: Technical Details

Powerful Essays
Open Document
Open Document
11400 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Gantry Cranes: Technical Details
TABLE OF CONTENT

1. Introduction

2. Block diagram

3. Component list

4. Technical description

• MAX232

• Data sheet Atmega

• L293d Motor Driver

• Com-Port(Serial communication)

• Relay

• Resistors

• Connecting Wires

Gantry crane
Introduction
Both overhead travelling cranes and gantry cranes are types of crane which lift objects by a hoist which is fitted in a trolley and can move horizontally on a rail or pair of rails fitted under a beam. An overhead travelling crane, also known as an overhead crane or as a suspended crane, has the ends of the supporting beam resting on wheels running on rails at high level, usually on the parallel side walls of a factory or similar large industrial building, so that the whole crane can move the length of the building while the hoist can be moved to and fro across the width of the building. A gantry crane or portal crane has a similar mechanism supported by uprights, usually with wheels at the foot of the uprights allowing the whole crane to traverse. Some portal cranes may have only a fixed gantry, particularly when they are lifting loads such as railway cargoes that are already easily moved beneath them.
Overhead travelling cranes and gantry cranes are particularly suited to lifting very heavy objects and huge gantry cranes have been used for shipbuilding where the crane straddles the ship allowing massive objects like ships' engines to be lifted and moved over the ship. Two famous gantry cranes built in 1974 and 1969 respectively, are Samson and Goliath, which reside in the largest dry dock in the world in Belfast, Northern Ireland. Each crane has a span of 140 metres and can lift loads of up to 840 tonnes to a height of 70 metres, making a combined lifting capacity of over 1,600 tonnes, one of the largest in the world.
However, gantry cranes are also available running on rubber tyres so that tracks are not needed, and small gantry cranes can

You May Also Find These Documents Helpful

  • Better Essays

     New-Car Dealers account for an estimated 30% of all units sold in a given…

    • 3051 Words
    • 24 Pages
    Better Essays
  • Powerful Essays

    Jebel Ali Port Analysis

    • 1427 Words
    • 6 Pages

    It has the region’s only semi-automated container terminal, automated ship-to-shore cranes, and other container handling equipment are one of the largest in the world…

    • 1427 Words
    • 6 Pages
    Powerful Essays
  • Good Essays

    Essay On Truss Bridges

    • 536 Words
    • 3 Pages

    They are built using cantilevers; horizontal structures that are only supported on the ends. These bridges are anchored securely on one side, in order to hold up the necessary weight on the opposite side, which is freestanding. Cantilevers must also withstand tension in the upper supports and compression in the lower supports. With proper materials and engineering, cantilever bridges can span over about 1,500 feet.…

    • 536 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    QCF 387A

    • 356 Words
    • 4 Pages

    Unit No. QCF 387 Preparing and Operating Compact Cranes to Lift and Transfer Loads in the Workplace…

    • 356 Words
    • 4 Pages
    Satisfactory Essays
  • Powerful Essays

    Nt1310 Unit 2 Study Guide

    • 1880 Words
    • 8 Pages

    It has a beam which is supported by a fulcrum. On one side is a pan on which the object is placed. On the other side, the beam is split into three parallel beams , each supporting one weight. In measuring the weight of an object, rather than adding additional weights, each of the three weights can be slid along the beam to increase their lever arm.…

    • 1880 Words
    • 8 Pages
    Powerful Essays
  • Good Essays

    Pulley system Lab report

    • 381 Words
    • 2 Pages

    A cargo lift that allows items to be hoisted to higher floors is a pulley system.…

    • 381 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Report1

    • 274 Words
    • 1 Page

    length of the counterweight jib. The crane operates in two modes: single trolley, where the inner…

    • 274 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    Aliens Built the Pyramids

    • 713 Words
    • 3 Pages

    Archeologists suggest that the large stones used in building the pyramids were transported by rolling them over logs or a wet, slippery, clay surface. These methods may have been effective in moving the blocks close to the building site, but do not explain how the massive bricks, weighing as much as a Ford F250 truck, were lifted on top of each other.…

    • 713 Words
    • 3 Pages
    Good Essays
  • Better Essays

    The apparatus involved a mild steel portal frame, which had been clamped into a loading rig…

    • 1039 Words
    • 5 Pages
    Better Essays
  • Satisfactory Essays

    How To Make A Liftomatic

    • 325 Words
    • 2 Pages

    The criteria used to make a liftomatic is that it has to be able to lift 1.25-10 tons and not…

    • 325 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    thank the authors for a very thorough and informative article on jib cranes. To this, I would add the following regarding maximizing the crane’s effect for column design. For a single jib crane on a column, the position of the jib crane resulting in the maximum effect on the column can be calculated as follows. The position of the jib crane is described by the angle θ, defined as 0° for a wide-flange column when the jib is turned so as to maximize column minor axis bending and torsion, and 90° when the jib is oriented to maximize column major axis bending (i.e. parallel to the column web). For an HSS column, the major axis is defined (for the purposes of this discussion) as the axis bent by the jib positioned at θ = 90°. I hope the reader will forgive the circular definition. To clarify, if the jib brackets are mounted on the 10 in. face of an HSS 8 × 10 × ½, the major axis modulus Sx as used herein will be less than the minor axis modulus Sy. Summarizing the notation of the article (to which reference should be made): RH = Horizontal reaction of the jib crane at the hinges. P = Vertical load (lifted load and weight of hoist). Some allowance should be made by the designer for the jib selfweight as well. A, B, C = Vertical dimensions along the column from upper hinge to roof framing, distance between hinges, and from floor to lower hinge respectively. X = Maximum distance from the hoist to the hinge axis of the jib (essentially, the length of the jib). D = Distance from the hinge axis to the face of the column.…

    • 911 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    i De La Salle Lipa College of Information Technology and Engineering Electronics Engineering Department PC – Based Lighting and Fan System Gesmundo, Kaycee Kimberly S. Marquez, Mark Aries J. Mea, Kit Arvin C. Perez, Omar Mikhail I. Tirones, Jefferson A. Umali, Max Oliver M. T4A March 2012 Engr. Robert G. De Luna Instructor i Table of Contents page I. Introduction 1 II. Physical Description 2 III.…

    • 8781 Words
    • 36 Pages
    Powerful Essays
  • Good Essays

    The RF relay control, as the name suggests, operates at Radio Frequency. The corresponding frequency range varies between 30 kHz & 300 GHz. In this RF system, the digital data is represented as variations in the amplitude of carrier wave. This kind of modulation is known as Amplitude Shift Keying (ASK).…

    • 1544 Words
    • 7 Pages
    Good Essays
  • Good Essays

    Lifting Operations and Lifting Equipment Regulations 1998 (LOLER) What you need to do - Moving and handling…

    • 1291 Words
    • 5 Pages
    Good Essays
  • Good Essays

    The Giant’s Causeway can be found in County Antrim in Northern Ireland and consists of about 40,000 basalt columns. These columns are all interlocked and were caused by an ancient volcanic eruption about 60 million years ago according to…

    • 1076 Words
    • 5 Pages
    Good Essays