JP3207457U - Roller bearing with spacer - Google Patents

Abstract

A roller bearing having a spacer capable of absorbing a pressing force of a roller is provided. The outer ring includes an outer ring, an inner ring, and a rolling unit, the outer ring has an annular outer raceway, the inner ring has an annular inner raceway, and the inner ring is provided inside the outer ring, The outer track and the inner track constitute a load path, the rolling unit is composed of a plurality of rollers and a plurality of spacing elements 32, and one spacing element is provided between two adjacent rollers, Each side surface of the spacer has a holding surface corresponding to the roller, the holding surface has an inclined surface 321 and a flat surface, and the inclined surface extends outward from the flat surface and is 1. The holding surface is provided with an angled avoiding portion 323 extending in the outer diameter direction from the center of the spacer, and the avoiding portion is sandwiched between 4 and 24 degrees. It is provided with a corner. [Selection] Figure 4

Description

  The present invention relates to a roller bearing, and more particularly to a roller bearing having a spacer.

  As can be seen from FIG. 3 of the patent publication, the spacing element of the crossed roller bearing disclosed in Japanese Patent No. 4440366 is housed in a rectangular track and maintains a constant gap with the track. As can be seen from FIG. 4, two adjacent rollers intersect with each other on both sides of one spacer.

Japanese Patent No. 4440366

  However, in the actual operation process, since the roller applies a pressing force to the spacer in the actual operation process, the spacer moves to the wall surface of the raceway, the spacer and the raceway interfere with each other, and the bearing smoothly operates. The problem of not being able to operate and even locking occurs. Therefore, avoiding the pressing of the spacer by the roller is one of the research and development priorities in this field.

  The present invention has been made in view of the above problems, and an object thereof is to provide a spacer structure that can absorb the pressing force of a roller.

  In order to achieve the above object, a roller bearing having a spacer according to the present invention includes an outer ring, an inner ring, and a rolling unit. The outer ring has an annular outer raceway, and the inner ring has an annular inner ring. The inner ring is provided inside the outer ring, the outer race and the inner race constitute a load path, and the rolling unit is composed of a plurality of rollers and a plurality of spacers. One spacer is provided between the two rollers, and holding surfaces corresponding to the rollers are provided on both side surfaces of the spacer, respectively, and the holding surface extends from the center of the spacer in the outer diameter direction. The avoiding part is provided so as to have an included angle of 4 degrees to 24 degrees.

  Preferably, the narrow angle of the avoidance portion has an optimum angle of 12 degrees to 20 degrees.

  Preferably, the holding surface has an inclined surface and a flat surface, and the inclined surface extends outward from the flat surface so as to form an angle of 1.5 degrees to 10 degrees with respect to the flat surface. .

  Thus, in the present invention, by providing the slope and the avoidance portion, when the roller is arranged in the load path, the inclination angle of the roller can be absorbed by the slope and the avoidance portion, and the distance between the rollers The upward push-up to the child can be avoided.

It is a disassembled perspective view of the roller bearing which has a spacer concerning the present invention. It is an assembly drawing of a roller bearing having a spacer according to the present invention. It is a perspective view of the spacer concerning the present invention. It is the figure which looked at the spacer concerning this invention from the side. It is the figure which looked at the spacer based on this invention from radial direction. It is a figure which shows the combination of the spacer and roller which concern on this invention. It is sectional drawing of the combination of the spacer which concerns on this invention, and a roller. It is a perspective view of a spacer in a 2nd embodiment concerning the present invention. It is a perspective view of a spacer in a 3rd embodiment concerning the present invention.

<First Embodiment>
Please refer to FIG. 1 to FIG. A roller bearing having a spacer according to the present invention includes an outer ring 1, an inner ring 2, and a rolling unit 3. The outer ring 1 has an annular outer track 11. The inner ring 2 has an annular inner track 21. The inner ring 2 is provided inside the outer ring 1, and the outer track 11 and the inner track 21 constitute a load path. The rolling unit 3 includes a plurality of rollers 31 and a plurality of spacers 32, and one spacer 32 is provided between two adjacent rollers 31. Respective holding surfaces corresponding to the rollers 31 are provided on both side surfaces of the spacer 32. The holding surface has an inclined surface 321 and a flat surface 322. The inclined surface 321 extends outward from the plane 322 so as to form an angle B with respect to the plane 322, and the angle B is 1.5 degrees to 10 degrees. Further, the holding surface has a flat-shaped avoiding portion 323 that spreads in the outer diameter direction from the center of the spacer 32. The avoidance portion 323 is provided to have a included angle A, and the included angle A is 4 degrees to 24 degrees. The narrow angle A of the avoidance portion 323 has an optimum angle of 12 degrees to 20 degrees. In the present embodiment, there is only one avoidance portion and penetrates both holding surfaces. In the present invention, when the roller 31 is arranged in the load path by providing the inclined surface 321 and the avoiding portion 323, the inclined surface 321 and the avoiding portion 323 cause the roller 31 to move as shown in FIGS. The inclination angle can be absorbed, and the upward pushing up of the spacer 32 by the roller 31 can be avoided.

<Second Embodiment>
Please refer to FIG. FIG. 8 is a diagram showing a second embodiment according to the present invention. This embodiment is different from the first embodiment in that the avoiding portion 323A is formed in a groove-like structure and is provided corresponding to both holding surfaces.

<Third Embodiment>
See FIG. FIG. 9 is a diagram showing a third embodiment according to the present invention. This embodiment is different from the second embodiment in that four avoiding portions 323A are arranged so as to intersect both holding surfaces, and both holding surfaces are provided so as to have two avoiding portions 323A.

  As described above, there is no doubt that the present invention has “industrial applicability”. In addition, the technical features disclosed in the present embodiment were not published in publications prior to filing, nor were they used publicly, and not only had the fact that the effects were enhanced, but also had additional effects. I can't miss it. Therefore, the “novelty” and “inventive step” of the present invention satisfy the provisions of the utility model law and apply for the utility model registration in accordance with the law.

  The disclosure by the above embodiment is for explaining the present invention, and does not limit the present invention. Accordingly, any changes in numerical values, replacement of equivalent elements, and the like are included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Outer ring 11 Outer track 2 Inner ring 21 Inner track 3 Rolling unit 31 Roller 32 Spacer 321 Slope 322 Plane 323, 323A Avoidance part A, B Angle

Claims (3)

A roller bearing having a spacer,
Including an outer ring, an inner ring, and a rolling unit,
The outer ring has an annular outer raceway;
The inner ring has an annular inner raceway, the inner race is provided inside the outer race, and the outer raceway and the inner raceway constitute a load path,
The rolling unit includes a plurality of rollers and a plurality of spacers, one spacer is provided between two adjacent rollers, and holding surfaces corresponding to the rollers are provided on both side surfaces of the spacer, respectively. Have
The holding surface has a staggered avoiding portion that spreads in the outer diameter direction from the center of the spacer, and the avoiding portion is provided so as to have an included angle of 4 degrees to 24 degrees. . A roller bearing having the spacer according to claim 1,
A roller bearing having a spacing element, wherein the narrow angle of the avoiding portion is an optimal angle of 12 degrees to 20 degrees. A roller bearing having the spacer according to claim 1,
The holding surface has a slope and a plane, and the slope is provided so as to extend outward from the plane and form an angle of 1.5 degrees to 10 degrees with respect to the plane. bearing.

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