CN203404246U - Rolling bearing for wind power generating equipment - Google Patents

Abstract

The utility model relates to a rolling bearing for wind power generating equipment. The rolling bearing comprises an inner ring, an outer ring and a retainer, wherein a plurality of cylindrical rolling bodies which can roll freely are kept between the inner ring and the outer ring; the retainer is positioned between the inner ring and the outer ring, and is provided with pocket holes which are used for keeping the rolling bodies at an equal interval. The rolling bearing is characterized in that the retainer is provided with column parts among the plurality of pocket holes; if a virtual section including a tangent line L1 between each rolling body which is accommodated on the retainer and each column part is set to be S, the intersecting line of the joint between the virtual section S and the periphery of the retainer is set to be L2, and the distance between a pair of adjacent intersecting lines L2 on the column parts of the periphery of the retainer is set to be R, the value of D/R is more than or equal to 4.5 and less than or equal to 6 relative to the diameter D of each rolling body.

Description

Wind power plant rolling bearing

Technical field

The utility model relates to the rolling bearing using in the drive system of using at wind power plant.

Background technique

From in the past, wind power plant requires high load capacity along with the increase of installed power, require accordingly with this, at the supporting member of the drive system as the said equipment and the rolling bearing using, especially in the retainer as the component parts of rolling bearing, existence need to meet high load capacityization simultaneously and guarantee the problem of intensity.

Model utility content

In order to solve above-mentioned problem, the utility model provides a kind of wind power plant rolling bearing, and it has: inner ring, outer ring, maintained a plurality of rolling element cylindraceous freely rolls between described inner ring and described outer ring, and retainer, described retainer is between described inner ring and described outer ring, and there is the pocket hole that equally spaced keeps described rolling element, it is characterized in that, described retainer has post portion between a plurality of described pockets hole, the virtual tangent plane that the tangent line L1 being housed between described rolling element on retainer and described post portion is included is made as S, and when the intersection of this virtual tangent plane S and described retainer outer circumferential face intersection is made as to L2, if the distance between a pair of intersection L2 mutual adjacent in the post portion of described retainer outer circumferential face is made as to R, with respect to the diameter D of described rolling element, meet 4.5≤D/R≤6.Thus, wind power plant of the present utility model can be realized high load capacity with rolling bearing, and can guarantee bearing intensity.

Accompanying drawing explanation

Fig. 1 means the sectional view of the holder of rolling bearing of the present utility model.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 means the figure of rolling bearing of the present utility model.

Embodiment

The rolling bearing 1 of present embodiment is wind power plant rolling bearing, and it has: inner ring 2, outer ring 3, maintained a plurality of rolling element 6 cylindraceous freely rolls between above-mentioned inner ring and above-mentioned outer ring, with retainer 8, this retainer 8 is between above-mentioned inner ring and above-mentioned outer ring, and there is the pocket hole 8a that equally spaced keeps above-mentioned rolling element, wherein, above-mentioned retainer has the 8b of post portion between a plurality of above-mentioned pockets hole, by being housed in the virtual tangent plane that above-mentioned rolling element 6 on retainer and the tangent line L1 between the above-mentioned post 8b of portion be included, be made as S, and when the intersection of this virtual tangent plane S and above-mentioned retainer outer circumferential face intersection is made as to L2, if the distance between a pair of intersection L2 mutual adjacent in the post portion of above-mentioned retainer outer circumferential face is made as to R, with respect to the diameter D of above-mentioned rolling element, meet 4.5≤D/R≤6, thus, can realize the high load capacity of bearing, and can guarantee bearing intensity.

Claims (2)

1. a wind power plant rolling bearing, it has: inner ring, outer ring, maintained a plurality of rolling element cylindraceous freely rolls between described inner ring and described outer ring, and retainer, described retainer is between described inner ring and described outer ring, and there is the pocket hole that equally spaced keeps described rolling element, it is characterized in that, described retainer has post portion between a plurality of described pockets hole, the virtual tangent plane that tangent line L1 between described rolling element and described post portion is included is made as S, and when the intersection of this virtual tangent plane S and described retainer outer circumferential face intersection is made as to L2, if the distance between a pair of intersection L2 mutual adjacent in the post portion of described retainer outer circumferential face is made as to R, with respect to the diameter D of described rolling element, meet 4.5≤D/R≤6.

2. wind power plant rolling bearing according to claim 1, is characterized in that, the mutual distance R between adjacent a pair of intersection L2 in the post portion of described retainer outer circumferential face, meets 5.2mm≤R≤8.9mm.

Images