DIMENSIONAL CALCULATION OF A MAST OF A MAST TYPE JIB CRANE FOR SLUDGE PUMPS HANDLING

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DOI:

https://doi.org/10.46585/pc.2022.1.2094

Klíčová slova:

mast type jib crane, handling, structural design, functional calculation, load capacity

Abstrakt

This paper represents a continuation of the issue of the technical solution of the mast-type jib crane for handling sludge pumps. It is situated and used in building no. 900, block V2 of Jaslovské Bohunice nuclear power plant. It accounts for an optimization of the original, in operation damaged handling equipment with manual control of lift and rotation. The overload of the equipment has a negligible effect on the lifting force on a crank. It was ascertained that the lifting force still belongs to the recommended range of 120 N to 160 N for comfortable operation by one worker. Due to the fact that in the original design there is a complete absence of bearings in the rotating mechanism, it is the solution to this problem that is on the subject of the paper. The difficulties with lifting the pumps from sludge ambient, which occurred during the use of the mast jib crane, in a way opened the door to further design modifications to the original structure. As a solution, it is proposed to cancel the original construction of the carrier inserted into the support and replace it with a fixed mast on which the jib would rotate. In this way, on the one hand it would potentially be conceivable to increase the load capacity and thus solve the problem of lifting pumps attached to the bottom of a tank. On the other hand, it is also attainable to amplify the scope of action of this crane.

Stažení

Data o stažení nejsou doposud dostupná.

Reference

Blatnický, M. 2015. Transport and handling equipment, solved exercises (In Slovak). Žilina: University of Žilina, 120 p., ISBN 978-80-554-1039-5.

Blatnický, M., Brezáni, M., Dižo, J. 2022a. Analytical analysis of a pillar crane for handling of sludge pumps breakdown. Acta Mechanica Slovaca (to be published).

Košábek, J. et al. 1990. Theory of transport and handling machines (In Slovak). Bratislava: Alfa Bratislava. 376 p., ISBN 80-05-00125-8.

Remta, F., Kupka, L., Dražan, F. 1974. Cranes (In Czech). 1. edition. Prague: STNL – publishing house of technical literature, 648 p.

Blatnický, M., Brezáni, M., Dižo, J. 2022b. Design of a column crane for manipulation with sludge pumps and a mathematical description of the dependence of a burden and a control force. Technológ, 14(01), pp. 26-29, ISSN 1337-8996.

Leinveber, J., Vávra, P. 2021. Mechanical engineering tables (In Czech). 7. edition. Úvaly: Albra. 962 p., ISBN 978-80-7361-124-8.

Stahování

Publikováno

2022-06-30

Jak citovat

Molnár, D., Blatnický, M., & Dižo, J. (2022). DIMENSIONAL CALCULATION OF A MAST OF A MAST TYPE JIB CRANE FOR SLUDGE PUMPS HANDLING. Perner’s Contacts, 17(1). https://doi.org/10.46585/pc.2022.1.2094

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Zaslán 2022-02-01
Přijat 2022-04-27
Publikován 2022-06-30