CN216382231U

CN216382231U - Sealed dustproof combination formula bearing seal structure

Info

Publication number: CN216382231U
Application number: CN202123235140.1U
Authority: CN
Inventors: 刘慧斌
Original assignee: Daw Bearing Co ltd
Current assignee: Daw Bearing Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-04-26
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a sealed dustproof combined bearing sealing structure which comprises a bearing body, wherein the bearing body comprises an outer ring, a plurality of steel balls and an inner ring, an inner chute is formed in the inner wall of the outer ring, an outer chute is formed in the outer wall of the inner ring, the outer chute of the outer ring and the outer chute of the inner ring are connected with the peripheries of the plurality of steel balls in a sliding mode, first inner limiting grooves are formed in two sides of the inner wall of the outer ring, second inner limiting grooves are formed in one side, close to the two first inner limiting grooves, in the outer ring, the two sides of the outer wall of the inner ring are provided with first outer limiting grooves, and second outer limiting grooves are formed in one side, close to the two first outer limiting grooves, in the outer ring. This kind of sealed dustproof combination formula bearing seal structure can carry out secondary seal dustproof to the bearing in the aspect of sealed dustproof combination formula bearing seal structure, and the sealed tight, waterproof dustproof, heat dispersion height of rubber seal lid are effectual with the silence.

Description

Sealed dustproof combination formula bearing seal structure

Technical Field

The utility model relates to the field of sealing dustproof combined bearing sealing structures, in particular to a sealing dustproof combined bearing sealing structure.

Background

The bearing is a precision part, but the working environment is complex, 70% of the early failure of the bearing is caused by abnormal abrasion or poor rotation of a raceway due to impurities entering the inside of the bearing, and a plurality of front bearings are provided with dust covers. Because inner circle and outer lane will rotate relatively, consequently the shield is connected with inner circle, outer lane or contact, or leaves certain gap, and the former connected mode leads to the noise big because the friction of shield with inner circle, outer lane, and the shield wearing and tearing, and life is short, and the latter connected mode leakproofness is poor, and inside dust still can get into the bearing from the gap, influences bearing performance. Therefore, the sealing structure of the combined bearing for preventing dust is improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model discloses a sealed dustproof combined bearing sealing structure which comprises a bearing body, wherein the bearing body comprises an outer ring, a plurality of steel balls and an inner ring, an inner chute is formed in the inner wall of the outer ring, an outer chute is formed in the outer wall of the inner ring, the outer chute of the outer ring and the outer chute of the inner ring are in sliding connection with the peripheries of the plurality of steel balls, first inner limiting grooves are formed in two sides of the inner wall of the outer ring, second inner limiting grooves are formed in one side, close to each other, of two first inner limiting grooves in the outer ring, first outer limiting grooves are formed in two sides of the outer wall of the inner ring, and second outer limiting grooves are formed in one side, close to each other, of two first outer limiting grooves in the outer ring.

As a preferred technical scheme of the present invention, metal sealing covers are respectively connected between the two first inner limiting grooves and the two first outer limiting grooves in a clamping manner, and sealing rings are respectively disposed between the outer periphery and the inner periphery of each metal sealing cover and between the first inner limiting groove and the first outer limiting groove.

As a preferred technical scheme of the present invention, a rubber sealing cover is connected between the two second inner limiting grooves and the two second outer limiting grooves in a snap-fit manner, and a cover width of the rubber sealing cover is larger than a cover width of the metal sealing cover.

According to a preferable technical scheme of the utility model, a plurality of first semicircular grooves are formed in the periphery of the rubber sealing cover, a plurality of second semicircular grooves are formed in the inner periphery of the rubber sealing cover, first balls are connected between the plurality of first semicircular grooves and the second inner limiting groove in the periphery of the rubber sealing cover in a sliding manner, and second balls are connected between the plurality of second semicircular grooves and the second semicircular grooves in the periphery of the rubber sealing cover in a sliding manner.

As a preferable technical scheme of the utility model, one side of the rubber sealing cover, which is close to the metal sealing cover, is fixedly connected with a rubber retaining ring, and the outer diameter of the rubber retaining ring is the same as the inner diameter of the outer ring.

As a preferred technical scheme of the utility model, a fixing frame is fixedly connected among the steel balls, and dust removing brushes are fixedly connected to two sides of the fixing frame.

The utility model has the beneficial effects that:

1. according to the sealing dustproof combined bearing sealing structure, the metal sealing cover and the sealing rings are arranged, so that dust can be prevented, foreign matters can be prevented from entering the sealing dustproof combined bearing sealing structure, and the sealing dustproof effect is better due to the matching of the two sealing rings and the metal sealing cover;

2. according to the sealing dustproof combined bearing sealing structure, the bearing can be sealed and dustproof for the second time through the arranged rubber sealing cover, and the rubber sealing cover is tight in sealing, waterproof and dustproof, high in heat dissipation performance and good in silencing effect;

3. according to the sealing dustproof combined bearing sealing structure, the first ball and the second ball are arranged, under the matching of the rubber sealing cover and the first ball and the second ball, the first ball and the second ball are in rolling friction with the first semicircular groove and the second semicircular groove, the friction force is small, the abrasion is further reduced, and the service life of the rubber sealing cover is effectively prolonged;

4. this kind of sealed dustproof combination formula bearing seal structure, mount and the brush that removes dust through setting up, the mount can keep the bearing temperature, and the brush that removes dust can clear away inside dust, avoids the dust to pile up, influences the bearing and uses.

Drawings

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

FIG. 1 is an exterior perspective view of a sealed dust-proof combination bearing seal of the present invention;

FIG. 2 is a disassembled perspective view of a sealed dustproof combined bearing sealing structure of the present invention;

fig. 3 is a partially enlarged perspective view of a sealing structure of a sealed dustproof combined bearing according to the present invention.

In the figure: 1. a bearing body; 2. an outer ring; 3. steel balls; 4. an inner ring; 5. a first inner limiting groove; 6. a second inner limiting groove; 7. a first outer limiting groove; 8. a second outer limiting groove; 9. a metal sealing cover; 10. a rubber sealing cover; 11. a first semicircular groove; 12. a second semi-circular groove; 13. a first ball bearing; 14. a second ball bearing; 15. a rubber retainer ring; 16. a fixed mount; 17. a dust removing brush.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-3, the utility model relates to a sealed dustproof combined bearing sealing structure, which comprises a bearing body 1, wherein the bearing body 1 comprises an outer ring 2, a plurality of steel balls 3 and an inner ring 4, an inner chute is formed in the inner wall of the outer ring 2, an outer chute is formed in the outer wall of the inner ring 4, the inner chute of the outer ring 2 and the outer chute of the inner ring 4 are in sliding connection with the peripheries of the plurality of steel balls 3, first inner limiting grooves 5 are formed in two sides of the inner wall of the outer ring 2, second inner limiting grooves 6 are formed in two sides, close to one side, of the two first inner limiting grooves 5 in the outer ring 2, first outer limiting grooves 7 are formed in two sides, close to one side, of the two first outer limiting grooves 7 in the outer ring 4, and second outer limiting grooves 8 are formed in one side, close to one side, of the two first outer limiting grooves 7 in the inner ring 4.

Wherein, equal block between two first interior spacing grooves 5 and two first outer spacing grooves 7 is connected with metal sealing lid 9, and metal sealing lid 9's periphery and interior week and first interior spacing groove 5 and first outer spacing groove 7 between all are provided with the sealing washer, and through the metal sealing lid 9 and the sealing washer that set up, can prevent dust and prevent that the foreign matter from getting into, two sealing washers make sealed and dustproof effect better with the cooperation of metal sealing lid 9.

Wherein, the block is connected with rubber seal lid 10 between spacing groove 6 and the outer spacing groove 8 of two seconds in two seconds, and the lid width of rubber seal lid 10 is greater than the lid width of metal seal lid 9, and through the rubber seal lid 10 that sets up, can carry out secondary seal dustproof to the bearing, and rubber seal lid 10 is sealed tight, waterproof dustproof, heat dispersion height and silence are effectual.

Wherein, the first semicircular groove 11 of a plurality of has been seted up to rubber seal lid 10 periphery, a plurality of second semicircular groove 12 has been seted up to rubber seal lid 10 internal week, sliding connection has first ball 13 between the first semicircular groove 11 of a plurality of in rubber seal lid 10 periphery and the second spacing groove 6, sliding connection has second ball 14 between a plurality of second semicircular groove 12 in rubber seal lid 10 internal week and the second semicircular groove 12, through the first ball 13 and the second ball 14 that set up, at rubber seal lid 10, under the cooperation of first ball 13 and second ball 14, first ball 13 and second ball 14 are rolling friction with first semicircular groove 11 and second semicircular groove 12, frictional force is little, and then reduce wearing and tearing, the life of rubber seal lid 10 has effectively been prolonged.

Wherein, the rubber sealing cover 10 is close to the fixedly connected with rubber retaining ring 15 of metal sealing cover 9 one side, and the external diameter of rubber retaining ring 15 is the same with 2 internal diameters of outer loop, through the rubber retaining ring 15 that sets up, can strengthen the sealed dirt resistance of rubber sealing cover 10, increases the life of bearing.

Wherein, fixedly connected with mount 16 between a plurality of

steel ball

3, and 16 both sides fixedly connected with of mount remove dust brush 17, and through mount 16 and the brush 17 that removes dust that sets up, mount 16 can keep the bearing temperature, and the brush 17 that removes dust can clear away inside dust, avoids the dust to pile up, influences the bearing and uses.

The working principle is as follows: the sealing dustproof combined bearing sealing structure is different from the prior art, has reasonable structure, convenient use and simple operation, and can enable a user to simply and clearly understand the working principle; when in use, the metal sealing cover 9 and the sealing rings are arranged, dust can be prevented and foreign matters can be prevented from entering, the sealing and dust-proof effects are better due to the matching of the two sealing rings and the metal sealing cover 9, the rubber sealing cover 10 is arranged, secondary sealing and dust prevention can be carried out on a bearing, the rubber sealing cover 10 is tight in sealing, waterproof and dust-proof effects are high in heat dissipation performance and good in silencing effect, the first ball 13 and the second ball 14 are arranged, under the matching of the rubber sealing cover 10, the first ball 13 and the second ball 14, the first semi-circular groove 11 and the second semi-circular groove 12 are in rolling friction, the friction force is small, further, the abrasion is reduced, the service life of the rubber sealing cover 10 is effectively prolonged, the rubber check ring 15 is arranged, the sealing dust-proof performance of the rubber sealing cover 10 can be enhanced, the service life of the bearing is prolonged, the fixing frame 16 and the dust removing brush 17 are arranged, and the fixing frame 16 can keep the temperature of the bearing, the dust removing brush 17 can remove the dust inside, and the dust is prevented from being accumulated to influence the use of the bearing.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. 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. A sealed dustproof combined bearing sealing structure comprises a bearing body (1) and is characterized in that, the bearing body (1) comprises an outer ring (2), a plurality of steel balls (3) and an inner ring (4), the inner wall of the outer ring (2) is provided with an inner sliding groove, the outer wall of the inner ring (4) is provided with an outer sliding groove, the inner chute of the outer ring (2) and the outer chute of the inner ring (4) are connected with the periphery of the steel balls (3) in a sliding way, both sides of the inner wall of the outer ring (2) are provided with first inner limiting grooves (5), a second inner limiting groove (6) is arranged at one side of each of the two first inner limiting grooves (5) in the outer ring (2), two sides of the outer wall of the inner ring (4) are both provided with first outer limiting grooves (7), two first outer limiting grooves (7) outside the inner ring (4) are close to one side and are provided with second outer limiting grooves (8).

2. The combined type bearing sealing structure for sealing and dust prevention according to claim 1, wherein a metal sealing cover (9) is connected between the two first inner limiting grooves (5) and the two first outer limiting grooves (7) in a clamping manner, and sealing rings are arranged between the outer periphery and the inner periphery of the metal sealing cover (9) and between the first inner limiting grooves (5) and the first outer limiting grooves (7).

3. The combined type bearing sealing structure for sealing and dust prevention according to claim 1, wherein a rubber sealing cover (10) is connected between the two second inner limiting grooves (6) and the two second outer limiting grooves (8) in a clamping manner, and the cover width of the rubber sealing cover (10) is larger than that of the metal sealing cover (9).

4. The combined type bearing sealing structure for sealing and dust prevention according to claim 3, wherein a plurality of first semicircular grooves (11) are formed in the outer periphery of the rubber sealing cover (10), a plurality of second semicircular grooves (12) are formed in the inner periphery of the rubber sealing cover (10), a first ball (13) is slidably connected between the plurality of first semicircular grooves (11) and the second inner limiting groove (6) in the outer periphery of the rubber sealing cover (10), and a second ball (14) is slidably connected between the plurality of second semicircular grooves (12) and the second semicircular grooves (12) in the inner periphery of the rubber sealing cover (10).

5. A combined type bearing sealing structure for sealing and dust prevention according to claim 3, characterized in that a rubber retaining ring (15) is fixedly connected to one side of the rubber sealing cover (10) close to the metal sealing cover (9), and the outer diameter of the rubber retaining ring (15) is the same as the inner diameter of the outer ring (2).

6. The combined type bearing sealing structure for sealing and dust prevention as claimed in claim 1, wherein a fixing frame (16) is fixedly connected among a plurality of the steel balls (3), and dust removing brushes (17) are fixedly connected to two sides of the fixing frame (16).