Load distribution and life calculation method of double-row tapered roller bearings of wind turbines

A technology for tapered roller bearings and wind turbines, which is applied in calculation, computer-aided design, electrical digital data processing, etc., can solve the difficulty of load distribution calculation, complex internal force conditions of bearings, complex and changeable bearing load conditions, etc. question

Active Publication Date: 2018-09-28
GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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Problems solved by technology

The bearing load conditions are complex and changeable, the internal force of the bearing is complicated during operation, and the calculation of load distribution is difficult

Method used

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  • Load distribution and life calculation method of double-row tapered roller bearings of wind turbines
  • Load distribution and life calculation method of double-row tapered roller bearings of wind turbines
  • Load distribution and life calculation method of double-row tapered roller bearings of wind turbines

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Embodiment Construction

[0136] The present invention will be further described below in conjunction with specific examples.

[0137] The load distribution and life calculation method of the double-row tapered roller bearing of the wind power generating set provided in this embodiment is aimed at the internal load calculation model of the traditional double-row tapered roller bearing that does not consider rib deformation, bearing radial clearance, roller In order to solve problems such as shape modification, a method for simulating the deformation of the inner ring and rolling elements of double-row tapered roller bearings based on coordinate vectors is proposed. Specifically, the contact deformation between the raceway and the roller and the contact deformation between the roller and the rib are reflected through coordinate transformation Contact deformation, and considering the influence of rib deformation, bearing clearance and roller shape modification, and then by establishing the static balance ...

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Abstract

The invention discloses a load distribution and life calculation method of double-row tapered roller bearings of wind turbines. The method is mainly to simulate deformation of inner rings and rollingbodies of the double-row tapered roller bearings on the basis of coordinate vectors, and is specifically to reflect contact deformation of raceways and rollers and contact deformation of the rollers and retaining sides through coordinate transformation, consider influences of retaining-side deformation, bearing clearance and roller shaping, then obtain bearing raceway load distribution through establishing raceway and roller statics equilibrium equations, and then carry out solving on bearing life on the basis thereof. The method of the invention can highly efficiently, accurately and quicklycalculate the bearing load distribution and the bearing life, and has a practical promotion value.

Description

technical field [0001] The invention relates to the technical field of strength analysis of components of a wind power generating set, in particular to a load distribution and life calculation method of a double-row tapered roller bearing of a wind generating set. Background technique [0002] Double-row tapered roller bearings are important components of the transmission system of large wind turbines, and are widely used in the main shaft bearings of semi-direct drive fans and direct drive fans. The load conditions of bearings are complex and changeable, the internal force of bearings is complicated during operation, and the calculation of load distribution is difficult. [0003] In view of this, a method for simulating the deformation of the inner ring and rollers of double-row tapered bearings based on coordinate vectors is proposed, and the contact deformation between the raceway and the rollers is reflected through coordinate transformation, and the rib model, bearing c...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17G06F2119/06Y02E60/00
Inventor 邹荔兵段博志杨明川黄翀任永赵春雨刘凡鹰
Owner GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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