Assembling method for large-megawatt wind power gear box outer-ring-free cylindrical roller bearing

Abstract

The invention discloses an assembling method for a large-megawatt wind power gear box outer-ring-free cylindrical roller bearing. The assembling method comprises the steps that firstly, a planet wheel is horizontally corrected; secondly, a bearing sling is assembled; thirdly, a rolling element is tightened through a rubber rope, and radial deflection of the rolling element is eliminated; fourthly, the outer-ring-free cylindrical roller bearing is hoisted; fifthly, the outer-ring-free cylindrical roller bearing and an inner hole of the planet wheel are aligned in the axial direction, then, the bearing is rotated, it is guaranteed that the rolling element makes even contact with the rollaway nest face of the inner hole of the planet wheel and the rolling element falls into the inner hole of the planet wheel and is assembled in place; sixthly, the bearing sling is disassembled; seventhly, a pressing plate is used for pressing an assembled outer-ring-free cylindrical roller bearing, and the planet wheel is turned by 180 degrees and horizontally put on a contour cushion block; eighthly, the third step, the fourth step, the fifth step and the sixth step are repeatedly executed, and assembling of a second outer-ring-free cylindrical roller bearing and an inner hole of the other segment of the planet wheel is completed. The assembling method can effectively solve the problems of bearing hoisting and alignment of the inner holes of the planet wheel during assembling and can effectively avoid the situation that the rollaway nest face is damaged by assembling clamping and accident risks caused when the bearing is carried manually.

Description

technical field [0001] The invention relates to the technical field of assembling internal parts of a large megawatt wind power gearbox, in particular to a method for assembling a cylindrical roller bearing without an outer ring of a large megawatt wind power gearbox. Background technique [0002] With the development of wind power gearboxes to large megawatts, it has become a trend to use cylindrical roller bearings without outer rings in planetary gears. Cylindrical roller bearings without outer rings are characterized by the inner ring, cage, and rolling elements as a whole, and the inner hole of the planetary wheel replaces the outer ring of the bearing as the inner raceway, so that the rim of the planetary wheel can be relatively thickened during design, and the rolling elements The relative increase in number or increase in diameter improves the bearing capacity of planetary gears and bearings, and there is no problem of outer ring creep. [0003] At present, there ar...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for assembling a cylindrical roller bearing without an outer ring of a large megawatt wind power gearbox that is easy to operate and has strong versatility. This method can effectively solve the bearing problem during assembly Lifting, centering with the inner hole of the planetary wheel and avoiding the risk of accidents caused by damage to the raceway surface due to assembly jamming and manual handling of the bearing, suitable for the assembly of different sizes of cylindrical roller bearings without outer rings and planetary wheels

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