CN220204395U - Self-aligning roller bearing with roller loading gap - Google Patents

Abstract

The utility model belongs to the technical field of bearing assembly and manufacturing, and particularly relates to a self-aligning roller bearing with a roller loading gap. The ball loading notch of the arc is designed on the bearing inner ring, so that the roller is convenient to install, the arc notch has an inclination angle, the roller can be effectively prevented from falling off while the boosting effect on the roller is achieved during assembly, and a good effect is achieved in practical application.

Description

Self-aligning roller bearing with roller loading gap

Technical Field

The utility model belongs to the technical field of bearing assembly and manufacturing, and particularly relates to a self-aligning roller bearing with a roller accommodating notch.

Background

The self-aligning roller bearing is provided with two rows of rollers, mainly bears radial load and can bear axial load in any direction. Has high radial load capacity, and is especially suitable for heavy load or vibration load operation. The ball track of the outer ring of the bearing is spherical, so that the aligning performance is good, and coaxiality errors can be compensated.

There are various structural types of aligning rollers. The CB-shaped bearing with the small flanges on two sides and the middle flange is widely used for bearing the radial and axial combined load at the same time, and has good aligning performance. In the actual bearing production assembly, the installation of the rollers in the fitting process is troublesome due to the existence of the small flanges. The rolling surface is scratched and the installation is difficult frequently in the process of fitting.

Disclosure of Invention

According to the defects of the prior art, the utility model aims to provide the self-aligning roller bearing with the roller loading notch, which can effectively realize the bearing fit and does not influence the normal operation of the bearing.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the self-aligning roller bearing with the roller loading notch comprises an inner ring, an outer ring and a retainer arranged between the inner ring and the outer ring, wherein two rows of rollers are assembled in a pocket hole of the retainer, the outer diameter of the inner ring is provided with a small flange for blocking the rollers, the small flange is provided with an arc notch for assembling or disassembling the rollers, and the arc surface of the arc notch is outwards inclined to form a flaring structure.

Further, the circular arc diameter of the circular arc notch is 1.24-1.33 times of the diameter of the roller.

Further, the arc surface inclination angle of the arc notch is 0.8-1.2 times of the contact angle of the bearing.

Further, a round chamfer is adopted at the junction of the cambered surface of the circular arc notch and the end face of the inner ring.

Further, the number of the arc notches is two, and the arc notches are respectively positioned on the two inner ring small flanges at two sides of the bearing.

Further, the two arc gaps are arranged at intervals of 180 degrees.

The beneficial effects of the utility model are as follows: the ball loading notch of the arc is designed on the bearing inner ring, so that the roller is convenient to install, the arc notch has an inclination angle, the roller can be effectively prevented from falling off while the boosting effect on the roller is achieved during assembly, and a good effect is achieved in practical application.

Drawings

FIG. 1 is a schematic view of a self-aligning roller bearing with a roller loading gap;

FIG. 2 is a schematic view of the inclination of a circular arc notch;

FIG. 3 is a schematic view of a circular arc notch arc surface;

in the figure: 1. the roller bearing comprises an outer ring, 2 rollers, 3, a retainer, 4, an inner ring, 5 and an arc notch.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1-3, the aligning roller bearing with the roller loading notch comprises an inner ring 4, an outer ring 1 and a retainer 3 arranged between the inner ring 4 and the outer ring 1, wherein two rows of rollers 2 are assembled in a pocket hole of the retainer 3, the outer diameter of the inner ring 4 is provided with a small flange for blocking the rollers, the small flange is provided with an arc notch 5 for assembling or disassembling the rollers, and the arc surface of the arc notch 5 is outwards inclined to form a flaring structure.

Further, the circular arc diameter of the circular arc notch 5 is 1.24-1.33 times of the roller diameter.

Further, the arc surface inclination angle alpha of the arc notch 5 is 0.8-1.2 times of the contact angle of the bearing.

Further, a round chamfer is adopted at the junction of the cambered surface of the arc notch 5 and the end face of the inner ring.

Further, the number of the arc gaps 5 is two, the arc gaps are respectively positioned on two inner ring small flanges at two sides of the bearing, and the two arc gaps are arranged at intervals of 180 degrees. Two rows of aligning rollers are convenient to install respectively.

In the production and assembly of the self-aligning roller bearing, the installation of the rollers in the fitting process is troublesome due to the existence of the small flange. To solve this problem, it is common practice to cut a circular gap in the inner collar small flange, from where the rollers fit into the cage, and finally fit. In reality, another problem is caused, and the gap for mounting the roller often has the phenomena of scratching the rolling surface, difficult mounting and even falling of the rolling body in the running process of the bearing due to the too deep gap. In order to solve the above problems, the bearing structure provided by the present utility model has the following features: 1. through a large number of data analysis and comparison, when the arc diameter of the gap for accommodating the roller is 1.24-1.33 times of the roller diameter, the convenience of installation can be ensured, and the rolling bodies can be prevented from falling off. 2. The cross section of the gap for containing the roller is changed from the traditional cylindrical surface with the center line parallel to the axis of the bearing to the cylindrical surface inclined towards the outside of the bearing, and the inclination angle is close to the contact angle. 3. The juncture of the inclined cylindrical surface of the roller loading notch and the end surface of the bearing adopts a round chamfer with proper size, thereby reducing the risk of scratch of the rolling body.

It should be noted that the detailed portions of the present utility model are not described in the prior art.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The foregoing list is only the preferred embodiments of the present utility model. Obviously, the utility model is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present utility model.

Claims (5)

1. Self-aligning roller bearing with dress roller breach, its characterized in that: the retainer comprises an inner ring, an outer ring and a retainer arranged between the inner ring and the outer ring, wherein two rows of rollers are assembled in a pocket hole of the retainer, the outer diameter of the inner ring is provided with a small flange for blocking the rollers, the small flange is provided with an arc notch for assembling or disassembling the rollers, and the arc surface of the arc notch is outwards inclined to form a flaring structure; the circular arc diameter of the circular arc notch is 1.24-1.33 times of the diameter of the roller.

2. The self-aligning roller bearing with roller loading gap as recited in claim 1, wherein: the arc surface inclination angle of the arc notch is 0.8-1.2 times of the contact angle of the bearing.

3. The self-aligning roller bearing with roller loading gap as recited in claim 1, wherein: and the junction of the arc surface of the arc notch and the end surface of the inner ring adopts a round chamfer.

4. The self-aligning roller bearing with roller loading gap as recited in claim 1, wherein: the number of the arc notches is two, and the arc notches are respectively positioned on two inner ring small flanges at two sides of the bearing.

5. The self-aligning roller bearing with roller loading gap according to claim 4, wherein: the two arc gaps are arranged at intervals of 180 degrees.