New load distribution method for one-row slewing ball bearing considering retainer force

Yu, Yonghun; Lee, Bora; Cho, Yongjoo

doi:10.1007/s12541-017-0006-7

Cited by 7 publications

(4 citation statements)

References 12 publications

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“…The ADINA (2009) software was used to build the numerical model. The bearing rings and frames of the body and chassis were discredited by eight-nodes solid elements of 3D-solid type (Yu, 2017). Teeth of outer ring, holes for the bolts and small constructional details were omitted in the model of a bearing.…”

Section: Computational Modelmentioning

confidence: 99%

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

Krynke

Vaško

2019

System Safety: Human - Technical Facility - Environment

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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.

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Section: Computational Modelmentioning

confidence: 99%

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

Krynke

Vaško

2019

System Safety: Human - Technical Facility - Environment

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“…The calculations were performed using a finite element model. Yu et al 6 studied the load distribution of a single-row four-point contact ball slewing bearing. The retainer force was considered in the force equilibrium of the balls.…”

Section: Introductionmentioning

confidence: 99%

Calculation method for the static carrying curve of double-row different-diameter ball slewing bearings

Wang²,

Mao

2023

Science Progress

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A method for calculating the static carrying curve of a double-row different-diameter ball slewing bearing was proposed. The relationship between the internal maximum rolling element load of each row and the combined external axial load and tilting moment load of the slewing bearing was established using the deformation compatibility and force equilibrium conditions. The rolling element load distribution range parameters of the main and auxiliary raceways of the double-row different-diameter ball slewing bearing were used as input invariables, and the corresponding external load combinations of the axial and tilting moment loads of the slewing bearing were obtained. These external load combinations were plotted in the coordinate system to obtain the static carrying curve of the slewing bearing. The obtained static carrying curve was compared with that calculated using the finite element method for verification. Finally, the influences of detailed design parameters such as the raceway groove radius coefficient, raceway contact angle, and rolling element diameter on the carrying capacity of the double-row different-diameter ball slewing bearing were analyzed based on the carrying curves. As the groove radius coefficient increases from 0.515 to 0.530, or the contact angle increases from 50° to 65°, the carrying capacity of the slewing bearing decreases. As the rolling element diameter increases from 0.90 times the initial diameter to 1.05 times the initial diameter, the carrying capacity of the slewing bearing increases.

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“…The calculations were performed by using the finite elements model. Yu et al [6] studied the load distribution for a single-row four-point contact ball slewing bearing. The retainer force was considered for satisfying the force equilibrium of the balls.…”

Section: Introductionmentioning

confidence: 99%

Calculation method of static carrying curve for double-row different-diameter ball slewing bearing

Wang²,

2022

Preprint

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The calculation method of the static carrying curve of the double-row different-diameter ball slewing bearing was proposed. The relationship between the internal maximum rolling element load of each row and the external load combination of the slewing bearing was established by using the deformation compatibility conditions and the force equilibrium conditions. Using the rolling element load distribution range parameter of the main raceway and the auxiliary raceway of the double-row different-diameter ball slewing bearing respectively as input invariable, the corresponding external load combinations of axial load and tilting moment load of the slewing bearing were obtained. These external load combinations were plotted in the coordinate system to obtain the static carrying curve of the slewing bearing. The obtained static carrying curve was compared with that calculated by the finite element method for the verification purpose. Finally, influence laws of the detailed design parameters, such as raceway groove radius coefficient, raceway contact angle and rolling element diameter on the carrying capacity of the double-row different-diameter ball slewing bearing were analyzed by using the carrying curves. The results show that decreasing of raceway groove radius coefficient, increasing of rolling element diameter or increasing of raceway contact angle appropriately is advantageous for enhancing the carrying capacity of the double-row different-diameter ball slewing bearing.

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New load distribution method for one-row slewing ball bearing considering retainer force

Cited by 7 publications

References 12 publications

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

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

Calculation method for the static carrying curve of double-row different-diameter ball slewing bearings

Calculation method of static carrying curve for double-row different-diameter ball slewing bearing

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