CN210661036U

CN210661036U - Reverse contact angle double-row angular contact ball bearing

Info

Publication number: CN210661036U
Application number: CN201921704529.6U
Authority: CN
Inventors: 冯秀雷; 林继龙; 林继泉
Original assignee: Shandong Lan Yu Precision Bearing Manufacturing Co ltd
Current assignee: Shandong Lan Yu Precision Bearing Manufacturing Co ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-06-02
Anticipated expiration: 2029-10-12

Abstract

The utility model provides a reverse contact angle double-row angular contact ball bearing belongs to bearing technical field. The steel ball bearing comprises a bearing outer ring, a bearing inner ring and two rows of steel balls arranged between the bearing inner ring and the bearing outer ring; an outer ring gap is formed in one side of the bearing outer ring, and an inner ring gap corresponding to the outer ring gap is formed in the bearing inner ring; a transition arc is arranged in the middle of the inner side of the bearing outer ring, and outer ring grooves are formed in the two ends of the transition arc; the opening of the outer ring groove faces the inner side; and a bearing retainer supporting table is arranged in the middle of the inner side of the bearing inner ring, and inner ring grooves corresponding to the outer ring grooves are arranged on two sides of the bearing retainer supporting table. The utility model discloses a what the area adorned ball breach structure has increased the quantity of steel ball, and the bearing is when bearing axial load, and the contact angle of bearing is opposite direction, and the point of effort circles in the bearing, has improved the bearing load-carrying capacity of bearing.

Description

Reverse contact angle double-row angular contact ball bearing

Technical Field

The utility model relates to a bearing technical field, concretely relates to make inner circle bear axial load, increased load capacity's anti-feeler double-row angular contact ball bearing.

Background

At present, as shown in fig. 1, a double-row angular contact ball bearing exists in the prior art, steel ball grooves on an inner ring and an outer ring of the bearing of the double-row angular contact ball bearing are vertically and mutually corresponding, when an axial load is borne, a steel ball is in a suspended state, points of an inner ring which has no acting force at all are borne by an outer ring, and the load bearing mode is the double-row angular contact ball bearing with a positive contact angle. However, because the bearings are used at different places, the axial load bearing modes are different, and when the inner ring is required to bear the load force in some places, the positive contact angle double-row angular contact ball bearing cannot meet the requirement.

Disclosure of Invention

An object of the utility model is to provide a can let the bearing bear bigger load, increase the anti-feeler angle double row angular contact ball bearing of the bearing load capacity of bearing through the mode that increases steel ball quantity to solve at least one technical problem in the above-mentioned background art.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a reverse contact angle double-row angular contact ball bearing, which comprises a bearing outer ring, a bearing inner ring and two rows of steel balls arranged between the bearing inner ring and the bearing outer ring;

an outer ring gap is formed in one side of the bearing outer ring, and an inner ring gap corresponding to the outer ring gap is formed in the bearing inner ring;

a transition arc is arranged in the middle of the inner side of the bearing outer ring, and outer ring grooves are formed in two ends of the transition arc; the opening of the outer ring groove faces the inner side;

and inner ring grooves corresponding to the outer ring grooves are formed in two sides of the middle of the inner side of the bearing inner ring.

Preferably, the contact point of the steel ball and the inner ring groove and the contact point of the steel ball and the outer ring groove form an included angle of 23-25 degrees between a connecting line between the two contact points and a vertical line of the bearing axis.

Preferably, the radius of the transition arc is 24.7 mm-26.7 mm.

Preferably, the radius of the outer ring groove and the radius of the inner ring groove are 5.38 mm-5.46 mm.

The utility model discloses beneficial effect: the structure with the ball-loading notch is adopted, the number of the steel balls is increased, when the bearing bears axial load, the contact angle of the bearing is in the opposite direction, and the point of acting force is on the inner ring of the bearing, so that the load bearing capacity of the bearing is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a structural sectional view of a double row angular contact ball bearing in the prior art.

Fig. 2 is a cross-sectional view of a bearing outer ring structure of a reverse contact angle double-row angular contact ball bearing according to an embodiment of the present invention.

Fig. 3 is a cross sectional view of a bearing inner ring structure of a reverse contact angle double-row angular contact ball bearing according to an embodiment of the present invention.

Fig. 4 is a cross-sectional view of a structure of a reverse contact angle double-row angular contact ball bearing according to an embodiment of the present invention.

Wherein: 1-bearing outer ring; 2-bearing inner race; 3-steel ball; 4-transition arc; 5-outer ring grooves; 6-outer ring gap; 7-inner ring grooves; 8-a bearing cage; 9-inner ring gap.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by way of the drawings are exemplary only for the purpose of explaining the present invention and should not be construed as limiting the present invention.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

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

To facilitate understanding of the present invention, the present invention will be further explained with reference to specific embodiments in conjunction with the accompanying drawings, and the specific embodiments do not constitute limitations of the embodiments of the present invention.

It will be appreciated by those skilled in the art that the drawings are merely schematic representations of embodiments and that elements shown in the drawings are not necessarily required to practice the invention.

Examples

The embodiment of the utility model provides a reverse contact angle double-row angular contact ball bearing, which comprises a bearing outer ring 1, a bearing inner ring 2 and two rows of steel balls 3 arranged between the bearing inner ring 2 and the bearing outer ring 1; the method is characterized in that:

an outer ring gap 6 is formed in one side of the bearing outer ring 1, and an inner ring gap 9 corresponding to the outer ring gap 6 is formed in the bearing inner ring 2;

a transition arc 4 is arranged in the middle of the inner side of the bearing outer ring 1, and outer ring grooves 5 are arranged at two ends of the transition arc 4; the opening of the outer ring groove 5 faces the inner side;

and inner ring grooves 7 corresponding to the outer ring grooves 5 are arranged on two sides of the middle part of the inner side of the bearing inner ring 2.

The included angle between a connecting line between the two contact points and a vertical line of the bearing axis is 23-25 degrees.

The radius of the transition arc 4 is 24.7 mm-26.7 mm.

The radius of the outer ring groove 5 and the radius of the inner ring groove 7 are 5.38 mm-5.46 mm.

To sum up, the embodiment of the utility model provides a reverse contact angle double row angular contact ball bearing adopt the area to adorn the ball notch structure, increased the quantity of steel ball, the bearing is when bearing axial load, the contact angle of bearing is opposite direction, the point of effort circles in the bearing, has improved the bearing load capacity of bearing.

Those of ordinary skill in the art will understand that: the components in the device in the embodiments of the present invention may be distributed in the device in the embodiments according to the description of the embodiments, and may be correspondingly changed in one or more devices different from the embodiments. The components of the above embodiments may be combined into one component, or may be further divided into a plurality of sub-components.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A reverse contact angle double-row angular contact ball bearing comprises a bearing outer ring (1), a bearing inner ring (2) and two rows of steel balls (3) arranged between the bearing inner ring (2) and the bearing outer ring (1); the method is characterized in that:

an outer ring gap (6) is formed in one side of the bearing outer ring (1), and an inner ring gap (9) corresponding to the outer ring gap (6) is formed in the bearing inner ring (2);

a transition arc (4) is arranged in the middle of the inner side of the bearing outer ring (1), and outer ring grooves (5) are arranged at two ends of the transition arc (4); the opening of the outer ring groove (5) faces the inner side;

and inner ring grooves (7) corresponding to the outer ring grooves (5) are arranged on two sides of the middle part of the inner side of the bearing inner ring (2).

2. The anti-contact angle double row angular contact ball bearing according to claim 1, characterized in that: the included angle between a connecting line between the two contact points and a vertical line of the bearing axis is 23-25 degrees.

3. The anti-contact angle double row angular contact ball bearing according to claim 2, characterized in that: the radius of the transition arc (4) is 24.7 mm-26.7 mm.

4. The anti-contact angle double row angular contact ball bearing according to claim 3, characterized in that: the radius of the outer ring groove (5) and the radius of the inner ring groove (7) are 5.38 mm-5.46 mm.