Determination of the precise static load-carrying capacity of pitch bearings based on static models considering clearance

作者：Wang Yanshuang^*; Cao Jiawei

来源：International Journal of Mechanical Sciences, 2015, 100: 209-215.

DOI：10.1016/j.ijmecsci.2015.06.023

• Pitch bearing
• Negative clearance
• Static model
• Static load-carrying capacity

Static models for a single row and a double row four-point contact pitch bearing, taking into account the clearances therein, were presented. A precise computation method was proposed for the static load-carrying capacity curves of such pitch bearings, which can be used to pre-select pitch bearings and stewing bearings supposing rigid bearing rings. The effects on the static load-carrying capacity induced by changing the clearance, the raceway groove radius of curvature, and initial contact angle were analysed. The clearance has a significant effect on the static load-carrying capacity of the bearing only in load cases with a rather small axial force and a large tilting moment. When the coefficient of raceway groove curvature radius increases, the static load-carrying capacity decreases. The smaller the radial load, the more significant the effect of the coefficient of raceway groove curvature radius on the static load-carrying capacity of the bearing. When radial loads range from 0 to 800 kN, the load-carrying capacity increases with increasing initial contact angle. When the radial loads are above 800 kN, the load-carrying capacity decreases with increasing initial contact angle.

• 出版日期2015-9
• 单位天津职业技术师范大学