گنتری کرین

پیشنهاد کاربران

گنتری کرین ( به انگلیسی: Gantry crane ) ‏ سازه جرثقیلی می باشد که ویژه تخلیه و بارگیری کانتینر بر روی شناور است. این دستگاه انواع مختلفی دارد که معروفترین آن zpmc است که در ایران نیز از آن استفاده می کنند. در بندر شهید رجائی ۱۸ دستگاه موجود می باشد که در اختیار شرکت تایدواتر خاورمیانه است. نوع دیگر گنتری کرین در صنعت پل سازی کاربرد دارد که به صورت خرپای جلو رونده و نصب قطعات پیش ساخته بین دهانه های پل کاربرد دارد و این نوع دستگاه برای اولین بار در ایران در سال ۱۳۹۱ در پروژه پل طبقاتی صدر مورد استفاده قرار گرفت.
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رده ها: جرثقیل
ماشین آلات صنعتی
قس انگلیسی
and removed. ( March 2011 )
Shown in picture is Gantry crane on the right side called a "Full Gantry"
Gantry cranes, bridge cranes, and overhead cranes, are all types of cranes which lift objects by a hoist which is fitted in a hoist 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 from 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 crane and gantry crane 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 be used in workshops, for example for lifting automobile engines out of vehicles.

Samson and Goliath are now retained in Belfast as historic monuments under Article 3 of the Historic Monuments and Archaeological Objects ( Northern Ireland ) Order 1995.
Contents
[hide] 1 Variants 1. 1 Container crane
1. 2 Workstation gantry cranes
1. 3 Rail mounted or EOT gantry cranes
1. 4 History
1. 5 Early manufacture

2 Notable gantry cranes and dates
3 See also
4 References

[edit] Variants

[edit] Container crane

Side - view of Super - PostPanamax portainer crane at APM Terminal in Port of Rotterdam
Main article: Container crane

A ship - to - shore rail mounted gantry crane is a specialised version of the gantry crane in which the horizontal gantry rails and their supporting beam are cantilevered out from between frame uprights spaced to suit the length of a standard freight container, so that the beam supporting the rails projects over a quayside and over the width of an adjacent ship allowing the hoist to lift containers from the quay and move out along the rails to place the containers on the ship. The uprights have wheels which run in tracks allowing the crane to move along the quay to position the containers at any point on the length of the ship. The first versions of these cranes were designed and manufactured by Paceco Corporation They were called Portainers and became so popular that the term Portainer is commonly used as a generic term to refer to all ship - to - shore rail mounted gantry cranes.

[edit] Workstation gantry cranes

Workstation gantry cranes are used to lift and transport smaller items around a working area in a factory or machine shop. Some workstation gantry cranes are equipped with an enclosed track, while others use an I - beam, or other extruded shapes, for the running surface. Most workstation gantry cranes are intended to be stationary when loaded, and mobile when unloaded. Workstation Gantry Cranes can be outfitted with either a Wire Rope hoist as shown in the above hoist ( device ) picture or a lower capacity Chain Hoist.

[edit] Rail mounted or EOT gantry cranes

Steam Crane using a line shaft for power produced by Stuckenholz AG, Wetter am der Ruhr, Germany. Design developed by[1] Rudolf Bredt. Picture from
1875.
Electrical Overhead Travelling ( EOT ) cranes or gantry cranes are commonly found in factory applications such a . . .

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