Modular centering bearing device

A self-aligning bearing, modular technology, applied in the direction of bearings, bearing components, roller bearings, etc., to achieve the effect of enhancing strength, facilitating processing, and improving reliability of use

Pending Publication Date: 2018-07-10
GUODIAN UNITED POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a modular self-aligning bearing device, so that it will not produce unbalanced load and the assembly process is simple, so as to overcome the shortcomings of the existing self-aligning roller bearings and tapered roller bearings

Method used

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Embodiment Construction

[0032] This embodiment takes the thrust bearing applied to the main shaft of a wind turbine as an example to describe the modular self-aligning bearing device of the present invention in detail, which should not be construed as any limitation to the bearing device. The specific structure is as follows:

[0033] Refer to attached Figures 1 to 7 As shown, the modular self-aligning bearing device of the present invention includes a split bearing housing 1 and a tapered roller bearing 2 arranged in the bearing housing 1 . The outer surface of the outer ring of the tapered roller bearing 2 and the inner radial surface of the bearing housing 1 adopt a clearance fit of a spherical structure to realize the alignment between the outer ring of the bearing and the split bearing housing and avoid misassembly The assembly stress generated in the middle, and can avoid the unbalanced load phenomenon.

[0034] Wherein, the tapered roller bearing 2 in this embodiment is a double-row tapered...

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Abstract

The invention discloses a modular centering bearing device, which comprises a division bearing box and a conical roller bearing arranged in the division bearing box, wherein the outer surface of the outer ring of the conical roller bearing and the radial surface of the inside of the bearing box are in gap matching by using a spherical surface structure. The conical roller bearing is a double-row conical roller bearing. The division bearing box comprises two bearing box units in symmetrical arrangement; the two bearing box units are connected through screw bolts; a radial oil injection hole isformed in the bearing box unit; an oil groove communicating with the oil injection hole is formed in the middle of the outer surface of the outer ring of the conical roller bearing along the circumference; a plurality of oil inlet holes are formed in the bottom of the oil groove. The advantages of the conventional centering roller bearing and the conical roller bearing are merged; the prestress caused by assembly errors in the assembly can be effectively avoided; the unbalance loading phenomenon can also be avoided. The modular design is used; the processing is convenient; the assembly is facilitated; the device is suitable for being used as thrust bearings capable of bearing radial loads and axial loads.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to a modular self-aligning bearing device. Background technique [0002] At present, the transmission chain of doubly-fed wind turbines mostly adopts four-point support form. This support form requires two main shaft bearings, one floating bearing and one thrust bearing. The selection of thrust bearings is based on spherical roller bearings and tapered roller bearings. There are mainly two types of sub-bearings, each of which has its own advantages and disadvantages. [0003] The spherical roller bearing is used as the type selection of the thrust bearing. Its advantage is that the assembly process is simple, and no prestress will be generated due to assembly errors; Not all, and often even one row of raceways on the gearbox side is loaded on a single row, which makes the raceways and rollers of this row more prone to failure. [0004] Tapered roller bearings are used as thrust b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/38F16C33/66F16C35/067
CPCF16C19/385F16C33/664F16C35/067
Inventor 袁凌褚景春李少亮潘磊刘桂然孙乐乐郭新毅张建福
Owner GUODIAN UNITED POWER TECH
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