Design and manufacture of a ten ton capacity wedge jack

A Wedge Jack of relatively small dimensions (300 x 100 x 50 mm), but extremely high load carrying capacity (10 tons) has been designed for precision lifting of turbine shaft and its bearing cases for their proper alignment at Ghorasal Power Plant. The work was unique of its kind in Bangladesh, since...

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Main Authors: Azim, M. Anwarul, Amin, A. K. M. Nurul, Khan, Ahsan Ali
Format: Article
Language:English
Published: 1989
Subjects:
Online Access:http://irep.iium.edu.my/29502/1/1989_Design_and_manufacturer_of_a_ten_ton_capacity_wedge_jack.pdf
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author Azim, M. Anwarul
Amin, A. K. M. Nurul
Khan, Ahsan Ali
author_facet Azim, M. Anwarul
Amin, A. K. M. Nurul
Khan, Ahsan Ali
author_sort Azim, M. Anwarul
collection IIUM
description A Wedge Jack of relatively small dimensions (300 x 100 x 50 mm), but extremely high load carrying capacity (10 tons) has been designed for precision lifting of turbine shaft and its bearing cases for their proper alignment at Ghorasal Power Plant. The work was unique of its kind in Bangladesh, since it was the first venture of installation of a new power plant using local technology and expertise. The Jack was a key inventory item, without which the erection work was not technologically feasible. Its import from abroad or local manufacture using foreign expertise would involve huge cost and delay in the erection. Design of the same by an expert team of B.U.E.T. has solved the above mentioned problem. The designed Wedge Jack consists of an upper plate, a lower plate, two wedges and threaded shaft. Rotation of the shaft in one direction facilitates lifting up of the upper plate along with the given load, while rotation in the opposite direction lowering down of the same. Safety factors in the range from 1.5 to 3.5 for various parts of the Jack have been ensured by the design. For ease of production a few sample pieces of the same were manufactured under the supervision of the designers. The manufactured Wedge Jacks were tested for accuracy and the required load carrying capacity.
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spelling oai:generic.eprints.org:295022013-07-19T02:02:55Z http://irep.iium.edu.my/29502/ Design and manufacture of a ten ton capacity wedge jack Azim, M. Anwarul Amin, A. K. M. Nurul Khan, Ahsan Ali TS200 Metal manufactures. Metalworking A Wedge Jack of relatively small dimensions (300 x 100 x 50 mm), but extremely high load carrying capacity (10 tons) has been designed for precision lifting of turbine shaft and its bearing cases for their proper alignment at Ghorasal Power Plant. The work was unique of its kind in Bangladesh, since it was the first venture of installation of a new power plant using local technology and expertise. The Jack was a key inventory item, without which the erection work was not technologically feasible. Its import from abroad or local manufacture using foreign expertise would involve huge cost and delay in the erection. Design of the same by an expert team of B.U.E.T. has solved the above mentioned problem. The designed Wedge Jack consists of an upper plate, a lower plate, two wedges and threaded shaft. Rotation of the shaft in one direction facilitates lifting up of the upper plate along with the given load, while rotation in the opposite direction lowering down of the same. Safety factors in the range from 1.5 to 3.5 for various parts of the Jack have been ensured by the design. For ease of production a few sample pieces of the same were manufactured under the supervision of the designers. The manufactured Wedge Jacks were tested for accuracy and the required load carrying capacity. 1989 Article PeerReviewed application/pdf en http://irep.iium.edu.my/29502/1/1989_Design_and_manufacturer_of_a_ten_ton_capacity_wedge_jack.pdf Azim, M. Anwarul and Amin, A. K. M. Nurul and Khan, Ahsan Ali (1989) Design and manufacture of a ten ton capacity wedge jack. Industrial & Production Engineering Research Bulletin, 4 (1). pp. 1-10.
spellingShingle TS200 Metal manufactures. Metalworking
Azim, M. Anwarul
Amin, A. K. M. Nurul
Khan, Ahsan Ali
Design and manufacture of a ten ton capacity wedge jack
title Design and manufacture of a ten ton capacity wedge jack
title_full Design and manufacture of a ten ton capacity wedge jack
title_fullStr Design and manufacture of a ten ton capacity wedge jack
title_full_unstemmed Design and manufacture of a ten ton capacity wedge jack
title_short Design and manufacture of a ten ton capacity wedge jack
title_sort design and manufacture of a ten ton capacity wedge jack
topic TS200 Metal manufactures. Metalworking
url http://irep.iium.edu.my/29502/1/1989_Design_and_manufacturer_of_a_ten_ton_capacity_wedge_jack.pdf
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