CN220416001U - Novel bearing - Google Patents

Abstract

The utility model relates to the technical field of bearings, in particular to a novel bearing, which comprises an inner ring, an outer ring and rollers, wherein the inner ring is sleeved in the outer ring, the rollers are connected in a raceway on the opposite surface of the inner ring and the outer ring in a sliding way through a lower retainer and an upper retainer, and the rollers are ellipsoids or part of ellipsoids. According to the novel bearing, the bearing is characterized in that the bearing is provided with the ellipsoidal or part of ellipsoidal roller, so that most of the stress of the roller in the roller path is near the contact surface of the roller and the roller path, the stress at the two ends far away from the contact surface is reduced, the stability of the roller in rolling of the roller path can be kept, the ellipsoidal or part of the roller rotates around the axis of the ellipsoidal or part of the ellipsoidal roller, and the thickness of the stress part of the roller can be increased or reduced under the condition of not increasing the total weight of the roller.

Description

Novel bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a novel bearing.

Background

Bearings are an important component in contemporary mechanical devices. Its main function is to support the mechanical rotator, reduce the friction coefficient in the course of its movement and ensure its rotation accuracy.

At present, most bearings are provided with a roller path between an outer ring and an inner ring, a spherical or cylindrical roller is arranged in the roller path to achieve a rotation effect, and a roller distance is kept in the bearings through a retainer, but in the use process of the existing bearings, if the stress of the roller exceeds the designed use working condition range, the abrasion of the roller and the roller path is aggravated, so that the bearing is easy to lose efficacy, meanwhile, in the prior art, the bearings with different inner and outer diameter difference values or different widths are designed by increasing or reducing the diameter of the roller, the spherical roller bearing is taken as an example, the roller with larger diameter is needed when the bearing with larger inner and outer diameter difference values is designed, and the roller with smaller diameter is needed when the bearing with smaller inner and outer diameter difference values is designed, namely, the roller with different quality is needed to be singly used for different use conditions to meet the use requirements. In view of this, we propose a novel bearing.

Disclosure of Invention

The present utility model is directed to a novel bearing to solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the novel bearing comprises an inner ring, an outer ring and rollers, wherein the inner ring is sleeved in the outer ring, the rollers are slidably connected in raceways on the opposite surfaces of the inner ring and the outer ring through a lower retainer and an upper retainer, and the rollers are ellipsoids or part of ellipsoids.

Compared with the prior art, the utility model has the beneficial effects that: according to the novel bearing, the bearing is characterized in that the bearing is provided with the ellipsoidal or part of ellipsoidal rollers, the stress of the rollers in the roller path is mostly located near the contact surface of the rollers and the roller path, the stress at two ends far away from the contact surface is reduced, the load of certain types of universal bearings (such as thrust ball bearings) can be improved, the rated rotation speed of certain types of universal bearings (such as cylindrical roller bearings) is improved, the autorotation of the ellipsoidal is basically ensured to only wind the rotation shaft of the ellipsoidal, the transmission process is more stable, the thickness of the stress part of the rollers can be increased or reduced under the condition that the total weight of the rollers is not increased, the service life of the bearing is prolonged, the deformation predictability is higher, and a service object of a specific design is more definite.

Drawings

FIG. 1 is a schematic diagram illustrating the overall structure of the present utility model;

FIG. 2 is a schematic view of an ellipsoidal roller with a short axis of rotation;

fig. 3 is a schematic view of an ellipsoidal roller with a rotation axis as a long axis in the present utility model.

In the figure: 1. an inner ring; 2. an outer ring; 3. a roller; 4. a lower holder; 5. and (3) an upper retainer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the utility model.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

The present embodiment is used for improving the existing spherical roller bearing, including deep groove ball bearings and thrust ball bearings, and cylindrical roller bearings, and improves the existing spherical or cylindrical roller to be a part of an ellipsoid or an ellipsoid, and in addition, in order to ensure the normal operation of the bearing, the retainer needs to be improved to be in a shape matched with the roller.

Specifically, as shown in fig. 1, the embodiment provides a novel bearing, which comprises an inner ring 1, an outer ring 2 and rollers 3, wherein the inner ring 1 is sleeved in the outer ring 2, the rollers 3 are provided with a plurality of rollers, the rollers are slidably connected in raceways on the opposite surfaces of the inner ring 1 and the outer ring 2 through a lower retainer 4 and an upper retainer 5, and the rollers 3 are ellipsoids or part of ellipsoids.

The shape of the rollaway nest arranged on the opposite surfaces of the inner ring 1 and the outer ring 2 is a part of the ellipsoid of the roller 3, and meanwhile, the short axis length and the long axis length of the ellipsoidal roller of the same bearing are the same; the ellipsoidal rollers with different parameters can be designed by changing the major axis, the minor axis and the ellipsoidal axes, and can meet different dynamic characteristic requirements,

for the thrust ball bearing, the structure is the same as that of most of the existing thrust ball bearings

As the angular contact bearing, the structure is the same as that of most of the conventional angular contact bearings

As the deep groove ball bearing, the structure is the same as that of most of the prior deep groove ball bearings

The retainer of the bearing has the characteristics that the retainer is divided into two parts, and after the other parts are installed, the retainer is installed in the same installation mode as that of the retainer of most of the existing bearings; for the outer ring and the inner ring of the bearing, the contact surface of the bearing and the roller is a part of an ellipsoid and rotates around a central shaft; the processing, manufacturing, quality detection, acceptance inspection and other processes of the shape of the ellipsoid are different from those of a round ellipsoid.

FIG. 2 is a schematic view showing an ellipsoidal roller with a short axis of rotation;

fig. 3 shows a schematic structural view of an ellipsoidal roller with a rotation axis as a long axis, wherein both ends of the roller are rounded and are part of the ellipsoid.

The roller shown in FIG. 3 can be considered as a compromise between needle and spherical roller, with a higher upper rated rotational speed limit than needle

The novel bearing of this embodiment, through the ellipsoidal or ellipsoidal partial roller 3 that sets up for the atress of roller 3 in the raceway is mostly located the contact surface of roller 3 and raceway, and the both ends atress that keep away from the contact surface reduces, can keep the stability that roller 3 is rolling in the raceway, and the rotation of ellipsoidal or ellipsoidal partial roller 3 can only be along its own rotation axis when using, is equivalent to a compromise of kingpin, cylindrical roller and spherical roller.

Meanwhile, as shown in fig. 2 and 3, when the bearings with different outer diameter and inner diameter difference values are designed under the condition of not changing the self mass of the roller 3, only the values of the short axis and the long axis of the ellipsoid are changed, and the materials with the same mass are taken, so that the thickness of the stress part of the roller can be increased or reduced under the condition of not increasing the total weight of the roller, the deformation predictability is higher, and the service object with the specific design is more determined.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (1)

1. The utility model provides a novel bearing, includes inner circle (1), outer lane (2) and roller (3), inner circle (1) embolia in outer lane (2), just roller (3) are provided with a plurality ofly to through lower holder (4) and last holder (5) sliding connection that set up in the raceway of inner circle (1) and outer lane (2) opposite face, its characterized in that: the roller (3) is an ellipsoid or a part of an ellipsoid.