A hanger for wind power gearbox without outer ring cylindrical roller bearing

Abstract

The invention discloses a lifting appliance for a cylindrical roller bearing without an outer ring, of a wind power gear box. The lifting appliance comprises a central flange, a lifting ring assembly and bearing supports, wherein the lifting ring assembly is installed at the central part of the central flange; a plurality of the bearing supports are arranged and are lined at a fixed distance and installed at the periphery of the central flange in an insertion manner; each bearing support comprises a joint, a first nut, a cylindrical tenon and a clamping corner with a gasket; the joint is fixedly connected to one end of the first nut; the cylindrical tenon is fixedly connected to the other end of the first nut, clamped in a T-shaped groove of the clamping corner, and blocked and limited by the gasket installed on the clamping corner so as to be prevented from separating from the clamping corner; the first nut is rotated forwards and reversely; and the clamping corner is pushed and pulled to axially move through the cylindrical tenon on the first nut, so that the front end surface of the clamping corner is abutted against or separated from the circumferential surface of the inner ring of the cylindrical roller bearing without the outer ring. The lifting appliance disclosed by the invention is high in universality, and capable of effectively achieving the purpose of lifting for the bearing during assembly and reducing the accident risk caused during manual carrying for the bearing.

Description

technical field [0001] The invention relates to the technical field of hoisting equipment for a cylindrical roller bearing without an outer ring of a wind power gearbox, in particular to a hoisting tool for a cylindrical roller bearing without an outer ring of a 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] Howeve...

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Problems solved by technology

[0003] However, there are many difficulties in hoisting cylindrical roller bearings without outer rings in assembly: 1. Cylindrical roller bearings without outer rings have a large weight per piece, and the wall thickness of the inner ring of the bearing is limited. Due to the strength problem, the inner ring cannot be The hoisting holes are designed on the top, so that hoisting tools such as lifting rings cannot be used for hoisting; 2. It is impossible to use the traditional steel belt hoisting tool for clamping the outer ring of the bearing to clamp and hoist the outer rolling surface of the rolling body; 3. The bearing caused by manual handling accident risk

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