Overview of Electric Overhead Traveling (EOT) Cranes PDF Download
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Author: A. Bhatia Publisher: Createspace Independent Publishing Platform ISBN: 9781502515933 Category : Languages : en Pages : 0
Book Description
An overhead crane, also known as a bridge crane, is a type of crane where the hook and line mechanism runs along a horizontal beam that itself travels on the two widely separated rails. Often it is in a factory building and runs along rails mounted on the two long walls. A gantry crane is similar to an overhead crane, but here the bridge carrying the trolley is rigidly supported on two or more legs moving on fixed rails embedded in the floor. Overhead traveling cranes are also available in various configurations. The two main categorizations are top-running versus under-running bridge cranes and single-girder versus double-girder bridge cranes. Crane travel is directed by an operator, either manually or with a wired pendant station or wireless controls that guide their electric- or pneumatic-powered travel. Typical uses include multi-directional movement of materials through the production process, support manufacturing, transporting heavy items to and from storage areas, loading or unloading activities inside a warehouse or onto open trailers or railcars. This 6-hr course presents an overview of electric overhead travelling cranes and discusses the mechanical aspects of appropriate selection and includes civil, structural and electric design parameters. This course is aimed at mechanical engineers, electrical engineers, structural engineers, construction engineers, factory and workshop operators, supervisors, O & M professionals, facility managers, estimators and general audience. No specific prerequisite training or experience is required. The course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of course materials. Learning Objective At the conclusion of this course, the reader will: -Learn about various types of overhead cranes. -Describe the components and terminology of overhead cranes. -Understand crane duty groups and service classification such as CMAA, HMI/ASME, FEM and ISO. -Learn about various types of hoists, their application and safety features. -Understand the various types of loads (forces) on the crane runway girder and the building structure. -Learn the methods of crane electrification including festoon systems. -Learn the types of motors and enclosures based on NEMA standards. -Understand the electrical grounding requirements per NEC and the control systems. -Learn standard specifications covering mechanical, structural, and electrical requirements. -Understand the key crane inspection and testing requirements as specified by OSHA.
Author: A. Bhatia Publisher: Createspace Independent Publishing Platform ISBN: 9781502515933 Category : Languages : en Pages : 0
Book Description
An overhead crane, also known as a bridge crane, is a type of crane where the hook and line mechanism runs along a horizontal beam that itself travels on the two widely separated rails. Often it is in a factory building and runs along rails mounted on the two long walls. A gantry crane is similar to an overhead crane, but here the bridge carrying the trolley is rigidly supported on two or more legs moving on fixed rails embedded in the floor. Overhead traveling cranes are also available in various configurations. The two main categorizations are top-running versus under-running bridge cranes and single-girder versus double-girder bridge cranes. Crane travel is directed by an operator, either manually or with a wired pendant station or wireless controls that guide their electric- or pneumatic-powered travel. Typical uses include multi-directional movement of materials through the production process, support manufacturing, transporting heavy items to and from storage areas, loading or unloading activities inside a warehouse or onto open trailers or railcars. This 6-hr course presents an overview of electric overhead travelling cranes and discusses the mechanical aspects of appropriate selection and includes civil, structural and electric design parameters. This course is aimed at mechanical engineers, electrical engineers, structural engineers, construction engineers, factory and workshop operators, supervisors, O & M professionals, facility managers, estimators and general audience. No specific prerequisite training or experience is required. The course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of course materials. Learning Objective At the conclusion of this course, the reader will: -Learn about various types of overhead cranes. -Describe the components and terminology of overhead cranes. -Understand crane duty groups and service classification such as CMAA, HMI/ASME, FEM and ISO. -Learn about various types of hoists, their application and safety features. -Understand the various types of loads (forces) on the crane runway girder and the building structure. -Learn the methods of crane electrification including festoon systems. -Learn the types of motors and enclosures based on NEMA standards. -Understand the electrical grounding requirements per NEC and the control systems. -Learn standard specifications covering mechanical, structural, and electrical requirements. -Understand the key crane inspection and testing requirements as specified by OSHA.
Author: R. B. Brown Publisher: ISBN: 9781330607374 Category : History Languages : en Pages : 42
Book Description
Excerpt from Design of Electric Overhead Cranes: Crabs, Gearing and Brake Mechanism The introduction and development of the electric motor, which has revolutionized so many of the methods of manufacture and transportation, has, perhaps, influenced the design of no other single auxiliary apparatus in the productive industries more than that of cranes and hoists. The present treatise on the subject, therefore, has been written with the intention of placing on record the present practice in the design of overhead cranes, electrically operated, and of presenting such data as will aid the designer of such apparatus to properly calculate and proportion the various details, and supervise their construction. Overhead Travelers The overhead traveler in its various forms is probably in greater demand than any other type of electric crane on the market, a fact which has induced many firms to specialize in this particular branch of crane building. As a result of the continued and growing demand for these cranes, many attempts have been made, with more or less success, to standardize, as far as possible, the various details of construction. Electric travelers represent a type of crane which under ordinary conditions is in almost continuous service, and, as with other constantly working machines, it is essential that rapidity of operation, together with economy in current consumption, be pre-eminent factors to the purchaser and manufacturer alike. The requirements of the former should be based on the results of general experience gained during the past few years, while these results depend entirely on the skill of the designer, and the workmanship. The three types of ordinary travelers in use are the one -motor, three-motor, and four-motor cranes. The three-motor, and for medium and heavy cranes, the four-motor types, have been found to be by far the most efficient, and are, practically speaking, the only types now used for modern workshops, warehouses, and similar places. Until quite recently the single-motor type was considered preferable, on account of its cheapness, for engine rooms and similar places where a crane is only required occasionally. The present price of motors and their connections, and the fact that single-motor cranes require more gearing than the three-motor type, is in favor of the universal adoption of the latter, more especially since several makers manufacture the crabs of this type in quantities and keep them in stock, and can therefore give a quicker delivery. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: R. B. Brown Publisher: Hardpress Publishing ISBN: 9781407671857 Category : Languages : en Pages : 42
Book Description
Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.
Author: R B Brown Publisher: Franklin Classics ISBN: 9780342644018 Category : Languages : en Pages : 36
Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: R B Brown Publisher: Franklin Classics ISBN: 9780343143510 Category : Languages : en Pages : 36
Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: R. B. Brown Publisher: Nabu Press ISBN: 9781294566915 Category : Languages : en Pages : 38
Book Description
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Design Of Electric Overhead Cranes: Crabs, Gearing & Brake Mechanism; Issue 47 Of Machinery's Reference Series 2 R. B. Brown Industrial pr., 1910 Cranes and derricks
Author: R. B. Brown Publisher: ISBN: 9781295985715 Category : Languages : en Pages : 38
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: A. Bhatia
Author: A. Bhatia
Author: R. B. Brown
Author: R. B. Brown
Author: R B Brown
Author: R B Brown
Author: R. B. Brown
Author: R. B. Brown
Author: R. B. Brown
Author: R. B. Brown
Author: Hermann Wilda