<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The article analyzes of the load capacity of the rotation mechanism of the boom arm sub-assembly for a self-propelled crane. The uneven flexibility of systems supporting structures of the machine was taken into account in the identification of the load. The consideration are illustrated by the example slewing bearing from self-propelled crane. FEM method was used for calculations. The basic problems of construction of numerical model were discussed. Sample calculations of bearing carrying capacity has been done taking into account flexibility of bearings supporting structures, which also allowed to define the internal load distribution in the bearing. On example of the supporting structure of the mobile crane DST 5050 the internal load distribution in the crane bearing at different positions of the crane machine body were defined. During the rotation of the crane body priority angels were indicated. It has been shown that the deformations of the supporting frames are so large that they significantly change the distribution of forces transmitted by the individual bearing rollers.</p>
</abstract>

The article analyzes of the load capacity of the rotation mechanism of the boom arm sub-assembly for a self-propelled crane. The uneven flexibility of systems supporting structures of the machine was taken into account in the identification of the load. The consideration are illustrated by the example slewing bearing from self-propelled crane. FEM method was used for calculations. The basic problems of construction of numerical model were discussed. Sample calculations of bearing carrying capacity has been done taking into account flexibility of bearings supporting structures, which also allowed to define the internal load distribution in the bearing. On example of the supporting structure of the mobile crane DST 5050 the internal load distribution in the crane bearing at different positions of the crane machine body were defined. During the rotation of the crane body priority angels were indicated. It has been shown that the deformations of the supporting frames are so large that they significantly change the distribution of forces transmitted by the individual bearing rollers.

Management The Safety of Exploitation of the Rotation Mechanism in a Self-Propelled Crane

System Safety: Human - Technical Facility - Environment

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The article analyzes of the load capacity of the rotation mechanism of the boom arm sub-assembly for a self-propelled crane. The uneven flexibility of systems...

Management The Safety of Exploitation of the Rotation Mechanism in a Self-Propelled Crane

Published Online: Mar 28, 2019

Page range: 624 - 631

Received: Nov 09, 2018

Accepted: Dec 20, 2018

DOI: https://doi.org/10.2478/czoto-2019-0079

Keywords
stability of cranes, slewing bearings, bearing capacity

© 2019 Marek Krynke et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Management The Safety of Exploitation of the Rotation Mechanism in a Self-Propelled Crane

Published Online: Mar 28, 2019

Page range: 624 - 631

Received: Nov 09, 2018

Accepted: Dec 20, 2018

DOI: https://doi.org/10.2478/czoto-2019-0079

Keywordsstability of cranes, slewing bearings, bearing capacity

© 2019 Marek Krynke et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
stability of cranes, slewing bearings, bearing capacity