CN210830175U

CN210830175U - Deep groove ball bearing

Info

Publication number: CN210830175U
Application number: CN201921697830.9U
Authority: CN
Inventors: 冯艳
Original assignee: Quanzhou Yuanfeng Bearing Co ltd
Current assignee: Quanzhou Yuanfeng Bearing Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-06-23
Anticipated expiration: 2029-10-11

Abstract

The utility model relates to the technical field of bearings, in particular to a deep groove ball bearing, which comprises an outer ring, an inner ring and a plurality of steel balls, wherein the inner side surface of the outer ring is provided with a first steel ball rolling track and two first sealing grooves; a second steel ball rolling track and two second sealing grooves are formed in the outer side surface of the inner ring; the rear end surface of the outer ring is rotatably connected with a rear cover plate; the inner circumference and the outer circumference of the outer end face of the rear cover plate are integrally provided with two rear cover plate sealing edges; a plurality of spherical support frames and a plurality of positioning rods are integrally arranged on the inner end surface of the rear cover plate, and the steel balls are arranged among the spherical support frames, the first steel ball rolling rail and the second steel ball rolling rail in a rolling manner; the front end surface of the outer ring is connected with a front cover plate in a clamping way; the utility model discloses the structure is ingenious, with back shroud and the integrative manufacturing of steel ball fixing device, makes the preparation simpler, and in addition, the leakproofness is better, possesses certain effect that blocks external dust.

Description

Deep groove ball bearing

Technical Field

The utility model relates to a bearing technical field, concretely relates to deep groove ball bearing.

Background

The original single-row radial ball bearing of the deep groove ball bearing is a rolling bearing which is most widely applied. It features small friction resistance and high rotation speed, and can be used for bearing radial load or combined load acted simultaneously in radial and axial directions, and also can be used for bearing axial load, such as small-power motor, automobile and tractor gear box, machine tool gear box, general machine and tool, etc.

The existing deep groove ball bearing mainly comprises an outer ring, an inner ring, a group of steel balls and a group of retainers; the retainer is usually made of two metal chains, the retainer needs to be provided with grooves for accommodating the steel balls, and the metal chain area between two adjacent grooves needs to be fixed once to avoid collision between different steel balls; however, the steel ball retainer is complex to manufacture, and the sealing performance of both sides of the deep groove ball bearing is common.

SUMMERY OF THE UTILITY MODEL

For solving the problem that proposes among the above-mentioned background art, the utility model provides a deep groove ball bearing, the structure is ingenious, with back shroud and the integrative manufacturing of steel ball fixing device, makes the preparation simpler, and in addition, the leakproofness is better, possesses the certain effect that blocks external dust.

In order to achieve the above object, the utility model provides a following technical scheme: a deep groove ball bearing comprises an outer ring, an inner ring and a plurality of steel balls, wherein a first steel ball rolling track is arranged in the middle of the inner side surface of the outer ring, and two first sealing grooves are symmetrically arranged at two ends of the inner side surface of the outer ring; a second steel ball rolling track is arranged in the middle of the outer side surface of the inner ring, and two second sealing grooves are symmetrically arranged at two ends of the outer side surface of the inner ring; the rear end surface of the outer ring is rotatably connected with a rear cover plate; the inner circumference and the outer circumference of the outer end face of the rear cover plate are integrally provided with two rear cover plate sealing edges; the two rear cover plate sealing edges are clamped with the first sealing groove and the second sealing groove; a plurality of spherical support frames and a plurality of positioning rods are integrally arranged on the inner end surface of the rear cover plate, and the cross section of each spherical support frame is three-quarters circular; the steel ball is arranged between the spherical support frame and the first steel ball rolling rail and the second steel ball rolling rail in a rolling manner; the front end face of the outer ring is connected with a front cover plate in a clamping mode, two front cover plate sealing edges are integrally arranged on the inner side circumference and the outer side circumference of the outer end face of the front cover plate, and the two front cover plate sealing edges are clamped with the first sealing groove and the second sealing groove.

Furthermore, the outer ring and the inner ring are both in a ring shape made of high-carbon steel, and the inner diameter of the outer ring is larger than the outer diameter of the inner ring.

Furthermore, the positioning rod is in the shape of a cylinder with a hemispherical top end; the spherical support frames and the positioning rods are uniformly distributed on the inner end face of the rear cover plate in a crossed manner.

Furthermore, a positioning groove is formed in the position, corresponding to the positioning rod, of the inner end face of the front cover plate.

Furthermore, the cross sections of the first sealing groove and the second sealing groove are both rectangular.

Furthermore, the front cover plate and the rear cover plate are both made of butadiene-acrylonitrile diene rubber.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages that the whole structure is simpler by arranging the spherical support frame and the rear cover plate as a whole, thereby avoiding the complex process that steel ball retainers need to be arranged one by one and the retainer between two adjacent steel balls is fixed in the prior art; sealed border of back shroud and the sealed border of front shroud and first sealed recess, the sealed recess looks block of second, simple structure, and increased the utility model discloses a dustproof nature.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the rear cover plate of the present invention;

fig. 3 is a side view of the middle rear cover plate of the present invention;

fig. 4 is a top view of the front cover plate of the present invention;

FIG. 5 is a cross-sectional view of the side of the outer ring of the present invention;

fig. 6 is a cross-sectional view of the side of the inner ring of the present invention.

In the figure: 1. an outer ring; 101. a first steel ball rolling rail; 102. a first seal groove; 2. An inner ring; 201. a second steel ball rolling rail; 202. a second seal groove; 3. a rear cover plate; 301. A spherical support frame; 302. positioning a rod; 303. sealing edges of the rear cover plate; 4. a steel ball; 5. A front cover plate; 501. a positioning groove; 502. the front cover plate seals the edges.

Detailed Description

In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some, but not all, embodiments of the present invention and are not to be considered as limiting, and that all other embodiments can be made by one of ordinary skill in the art without any inventive work.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1-6, the present invention provides the following technical solutions: a deep groove ball bearing comprises an outer ring 1, an inner ring 2 arranged in the outer ring 1 and a plurality of steel balls 4; a first steel ball rolling track 101 is arranged in the middle of the inner side surface of the outer ring 1; two first sealing grooves 102 are symmetrically formed in two ends of the inner side surface of the outer ring 1; a second steel ball rolling track 201 is arranged in the middle of the outer side surface of the inner ring 2, and the outer ring 1 and the inner ring 2 are the same in thickness; two second sealing grooves 202 are symmetrically formed in two ends of the outer side surface of the inner ring 2; the positions of the first sealing groove 102 and the second sealing groove 202 are on the same plane; the rear end surface of the outer ring 1 is rotatably connected with a rear cover plate 3; the inner circumference and the outer circumference of the outer end face of the rear cover plate 3 are integrally provided with two rear cover plate sealing edges 303; the two rear cover plate sealing edges 303 are clamped with the first sealing groove 102 and the second sealing groove 202; a plurality of spherical supporting frames 301 and a plurality of positioning rods 302 are integrally arranged on the inner end surface of the rear cover plate 3, and the cross section of each spherical supporting frame 301 is three-quarters circular; the steel ball 4 is arranged between the spherical support frame 301 and the first steel ball rolling rail 101 and the second steel ball rolling rail 201 in a rolling manner; the front end face of the outer ring 1 is connected with a front cover plate 5 in a clamping mode, two front cover plate sealing edges 502 are integrally arranged on the inner side circumference and the outer side circumference of the outer end face of the front cover plate 5, and the two front cover plate sealing edges 502 are respectively clamped with the first sealing groove 102 and the second sealing groove 202.

According to the above embodiment, the two rear cover plate sealing edges 303 are engaged with the first sealing groove 102 and the second sealing groove 202, so that the dustproof performance of the rear side of the utility model can be improved; the spherical support frame 301 and the rear cover plate 3 are integrally arranged, so that the production is simpler and more economical, and the complicated process that steel ball retainers need to be arranged one by one and the retainers between two adjacent steel balls 4 are fixed in the prior art is avoided; two sealed borders 502 of front shroud block respectively with first sealed recess 102, the sealed recess 202 looks block of second, can increase the utility model discloses the dustproof performance of front side.

In order to make the outer ring 1 and the inner ring 2 have high mechanical strength, according to the above embodiment, specifically, referring to fig. 1, the outer ring 1 and the inner ring 2 are both in a circular ring shape made of high carbon steel, and the inner diameter of the outer ring 1 is larger than the outer diameter of the inner ring 2.

In order to increase the lateral pressure resistance of the present invention, a plurality of positioning rods 302 are disposed on the rear cover plate 3, and according to the above embodiment, specifically, referring to fig. 1-3, the positioning rods 302 are shaped as a cylinder with a hemispherical top end; the spherical supporting frames 301 and the positioning rods 302 are uniformly distributed on the inner end surface of the rear cover plate 3 in a crossed manner.

To facilitate the positioning between the front cover plate 5 and the rear cover plate 3, according to the above embodiment, in particular, referring to fig. 4, the inner end surface of the front cover plate 5 is provided with a positioning groove 501 at a position corresponding to the positioning rod 302.

In order to make the structure of the present invention as simple as possible, according to the above embodiments, in particular, referring to fig. 5 and 6, the cross sections of the first sealing groove 102 and the second sealing groove 202 are rectangular.

In order to facilitate the installation of the steel balls 4 in the spherical supporting frames 301 on the rear cover plate 3, the rear cover plate 3 is made of butadiene-acrylonitrile diene rubber having a certain deformation capability, and in accordance with the above embodiments, specifically, referring to fig. 1 to 4, both the front cover plate 5 and the rear cover plate 3 are made of butadiene-acrylonitrile diene rubber.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a deep groove ball bearing, includes outer lane (1), inner circle (2) and several steel ball (4), its characterized in that: a first steel ball rolling track (101) is arranged in the middle of the inner side surface of the outer ring (1), two first sealing grooves (102) are symmetrically arranged at two ends of the inner side surface of the outer ring (1), a second steel ball rolling track (201) is arranged in the middle of the outer side surface of the inner ring (2), and two second sealing grooves (202) are symmetrically arranged at two ends of the outer side surface of the inner ring (2); the rear end face of the outer ring (1) is rotatably connected with a rear cover plate (3); the inner circumference and the outer circumference of the outer end face of the rear cover plate (3) are integrally provided with two rear cover plate sealing edges (303), and the two rear cover plate sealing edges (303) are clamped with the first sealing groove (102) and the second sealing groove (202); a plurality of spherical support frames (301) and a plurality of positioning rods (302) are integrally arranged on the inner end surface of the rear cover plate (3), and the cross section of each spherical support frame (301) is three-quarters circular; the steel ball (4) is arranged among the spherical support frame (301), the first steel ball rolling rail (101) and the second steel ball rolling rail (201) in a rolling manner; the front end face of the outer ring (1) is connected with a front cover plate (5) in a clamping mode, two front cover plate sealing edges (502) are integrally arranged on the inner side circumference and the outer side circumference of the outer end face of the front cover plate (5), and the two front cover plate sealing edges (502) are clamped with the first sealing groove (102) and the second sealing groove (202).

2. The deep groove ball bearing of claim 1, wherein: the outer ring (1) and the inner ring (2) are both in a ring shape made of high-carbon steel, and the inner diameter of the outer ring (1) is larger than the outer diameter of the inner ring (2).

3. The deep groove ball bearing of claim 1, wherein: the positioning rod (302) is in the shape of a cylinder with a hemispherical top end; the spherical support frames (301) and the positioning rods (302) are uniformly distributed on the inner end face of the rear cover plate (3) in a crossed manner.

4. The deep groove ball bearing of claim 1, wherein: and a positioning groove (501) is formed in the position, corresponding to the positioning rod (302), of the inner end surface of the front cover plate (5).

5. The deep groove ball bearing of claim 1, wherein: the first sealing groove (102) and the second sealing groove (202) are both rectangular in cross section.

6. The deep groove ball bearing of claim 1, wherein: the front cover plate (5) and the rear cover plate (3) are both made of butadiene-acrylonitrile diene rubber.