CN220769966U - Deep groove ball bearing - Google Patents

Abstract

The utility model relates to the technical field of bearings and discloses a deep groove ball bearing which comprises an outer ring, an inner ring, steel balls, a first dust cover and a second dust cover, wherein the inner ring is arranged in the outer ring, the first dust covers are arranged at the two ends of the outer ring, the second dust covers are arranged at the two ends of the inner ring, the first dust covers are rotationally connected with the second dust covers, four first clamping grooves are respectively arranged at the two ends of the outer ring, the first clamping grooves are respectively clamped with the first clamping blocks, four second clamping grooves are respectively arranged at the two ends of the inner ring, and the second clamping grooves are respectively clamped with the second clamping blocks.

Description

Deep groove ball bearing

Technical Field

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

Background

The deep groove ball bearing is a single-row radial ball bearing, is a rolling bearing with the most widely applied principle, has small friction resistance and high rotating speed, can be used for bearing radial load or a part with combined load of radial and axial actions, can be used for bearing axial load, has wide application range, is usually provided with a dust cover to prevent external dust from entering the bearing in the prior art, has poor sealing effect, causes unsatisfactory dust prevention effect,

the utility model discloses a deformation-resistant dustproof deep groove ball bearing, which is disclosed in Chinese patent publication No. CN112682421A, the publication date of which is 2021, 4 and 20, and comprises an outer ring, an inner ring, a retainer and rolling bodies, wherein two sides of the inner ring are respectively fixed with a dustproof cover for blocking the gap between the inner ring and the outer ring, the dustproof cover is provided with a supporting structure, the supporting structure comprises a mounting ring, an inserting slot and a supporting body, the mounting ring is arranged on the inner wall of the dustproof cover at intervals in the circumferential direction, the inserting slot is arranged on the outer wall of the mounting ring at intervals, the supporting body is inserted into the supporting body is fixed on the inserting slot, the supporting body comprises a supporting rod, the lower end of the supporting rod is partially inserted into the inserting slot, an elastic gasket is positioned at the bottom of the supporting rod, a supporting ball is positioned at the upper end of the supporting rod, an auxiliary rolling path for the supporting ball to roll is arranged at the position of the inner wall of the outer ring opposite to the supporting ball, the retainer is provided with a lubricating mechanism for self-lubricating when the supporting ball is in sliding fit with the auxiliary rolling,

but when in actual use, the dustproof cover is mounted on the inner ring through the elastic bolt to achieve the aim of dust prevention, but the dustproof cover mounted through the mode is poor in tightness, dust is very easy to enter the bearing from a gap between the dustproof cover and the outer ring or the inner ring, so that the friction resistance of the bearing during rotation is increased, the normal operation of the bearing is hindered, and the equipment is further caused to run slowly, and meanwhile, the bearing is easy to vibrate after the dust enters the bearing, so that noise is generated.

Disclosure of Invention

The utility model aims to provide a deep groove ball bearing, which aims to solve the problem that the dust cover of the existing deep groove ball bearing is poor in sealing performance.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a deep groove ball bearing, includes outer lane, inner circle, steel ball, first shield and second shield, be provided with the inner circle in the outer lane, the outer lane both ends all are provided with first shield, the inner circle both ends all are provided with the second shield, first shield rotates with the second shield to be connected, the outer lane both ends are equipped with four first draw-in grooves respectively, first shield is located outer lane one side and is provided with four first fixture blocks, first draw-in groove and first fixture block joint, the inner circle both ends are equipped with four second draw-in grooves respectively, the second shield is located inner circle one side and is provided with four second fixture blocks, second draw-in groove and second fixture block joint.

Preferably, one end of the first dust cover is provided with a first bump, one end of the second dust cover is provided with a second bump, and the first bump is rotationally connected with the second bump.

Preferably, steel balls are arranged between the outer ring and the inner ring.

Preferably, grooves matched with the steel balls are formed in one end of the outer ring and one end of the inner ring, which are positioned at one end of the steel balls.

Preferably, two retainers are arranged between the outer ring and the inner ring, and the retainers are connected with the steel balls in a sliding manner.

Preferably, the retainer is positioned between the two steel balls and is in threaded connection with a screw.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the first clamping groove is formed in the outer ring, the first clamping block is arranged on the first dust cover, so that the first dust cover is clamped on the outer ring, the first dust cover is firmly arranged on the outer ring, dust cannot enter the bearing from a gap between the outer ring and the first dust cover, meanwhile, the second clamping groove formed in the inner ring and the second clamping block arranged on the second dust cover can firmly arrange the second dust cover on the inner ring, so that dust cannot enter the bearing from a gap between the inner ring and the second dust cover, and in addition, the first lug is arranged on the first dust cover and the second lug is arranged on the second dust cover, so that the tightness between the first dust cover and the second dust cover is improved, dust is difficult to enter the bearing, and the bearing is very practical.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the steel ball and cage structure of the present utility model;

FIG. 3 is a schematic side sectional view of a first dust cap according to the present utility model;

FIG. 4 is a schematic side sectional view of a second dust cap according to the present utility model;

fig. 5 is a schematic view of a partial enlarged structure at a in fig. 2.

In the figure: 1. an outer ring; 2. an inner ring; 3. steel balls; 4. a first dust cap; 5. a second dust cap; 6. a first clamping groove; 7. a first clamping block; 8. a second clamping groove; 9. a second clamping block; 10. a first bump; 11. a second bump; 12. a groove; 13. a retainer; 14. and (5) a screw.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown.

Referring to fig. 1-5, the present utility model provides a technical solution: the deep groove ball bearing comprises an outer ring 1, an inner ring 2, steel balls 3, a first dust cover 4 and a second dust cover 5, wherein the inner ring 2 is arranged in the outer ring 1, the first dust cover 4 is arranged at two ends of the outer ring 1, the second dust cover 5 is arranged at two ends of the inner ring 2, the first dust cover 4 is rotationally connected with the second dust cover 5, four first clamping grooves 6 are respectively arranged at two ends of the outer ring 1, the first dust cover 4 is provided with four first clamping blocks 7 at one side of the outer ring 1, the first clamping grooves 6 are clamped with the first clamping blocks 7, four second clamping grooves 8 are respectively arranged at two ends of the inner ring 2, four second clamping blocks 9 are arranged at one side of the second dust cover 5 and are clamped with the second clamping blocks 9,

in this embodiment, first the first clamping block 7 on the first dust cover 4 is aligned with the first clamping groove 6 on the outer ring 1, and the second clamping block 9 on the second dust cover 5 is aligned with the second clamping groove 8 on the inner ring 2, then the first clamping block 7 and the second clamping block 9 are simultaneously pressed down to respectively clamp the first clamping groove 6 and the second clamping groove 8, so that the first dust cover 4 and the second dust cover 5 are firmly mounted on the bearing, and dust cannot enter the bearing from the gap between the outer ring 1 and the first dust cover 4 and the gap between the inner ring 2 and the second dust cover 5, wherein the first dust cover 4 and the second dust cover 5 are always rotationally connected together, so that the situation that the sealing performance is reduced due to mutual extrusion deformation of the first dust cover 4 and the second dust cover 5 when the first dust cover 4 and the second dust cover 5 are mounted is avoided, and the rotation of the bearing cannot be affected by the rotationally connected together.

As shown in fig. 3-4, one end of the first dust cover 4 is provided with a first bump 10, one end of the second dust cover 5 is provided with a second bump 11, the first bump 10 is rotationally connected with the second bump 11, in this embodiment, by arranging the first bump 10 on the first dust cover 4 and the second bump 11 on the second dust cover 5, the connection between the first dust cover 4 and the second dust cover 5 is firmer, and dust cannot enter into the bearing from a gap between the first dust cover 4 and the second dust cover 5.

As shown in fig. 2 and 5, a steel ball 3 is disposed between the outer ring 1 and the inner ring 2, in this embodiment, the outer ring 1 and the inner ring 2 can be supported by the steel ball 3, and meanwhile, the rotation of the inner ring 2 and the outer ring 1 is not affected.

As shown in fig. 2 and 5, the outer ring 1 and the inner ring 2 are both provided with grooves 12 at one ends of the steel balls 3, which are matched with the steel balls 3, and in this embodiment, the steel balls 3 can be prevented from falling from between the outer ring 1 and the inner ring 2 by the design of the grooves 12, so that the firmness of the bearing is increased.

As shown in fig. 2 and 5, two retainers 13 are disposed between the outer ring 1 and the inner ring 2, and the retainers 13 are slidably connected with the steel balls 3, in this embodiment, the steel balls 3 inside the bearing can be prevented from being rubbed and pressed mutually by the design of the retainers 13 when the bearing moves, so that the bearing is vibrated and distorted, and even the steel balls 3 fall from the bearing.

As shown in fig. 5, the retainer 13 is screwed between the two steel balls 3, and in this embodiment, the retainer 13 can be easily assembled and disassembled by the design of the screw 14, so that people can replace the retainer 13 more conveniently after the retainer 13 ages.

Working principle: when the dust-proof bearing is used, first clamping blocks 7 on the first dust-proof cover 4 are aligned with first clamping grooves 6 on the outer ring 1, second clamping blocks 9 on the second dust-proof cover 5 are aligned with second clamping grooves 8 on the inner ring 2, then the first clamping blocks 7 and the second clamping blocks 9 are pressed down simultaneously, the first clamping blocks 7 and the second clamping blocks 9 are clamped into the first clamping grooves 6 and the second clamping grooves 8 respectively, the first dust-proof cover 4 and the second dust-proof cover 5 are firmly installed on the bearing, dust cannot enter the bearing from gaps between the outer ring 1 and the first dust-proof cover 4 and gaps between the inner ring 2 and the second dust-proof cover 5, the first dust-proof cover 4 and the second dust-proof cover 5 are always connected in a rotating mode, deformation caused by mutual extrusion of the first dust-proof cover 4 and the second dust-proof cover 5 is avoided, the rotation of the bearing is not affected when the first dust-proof cover 4 is connected in a rotating mode, in addition, dust cannot enter the bearing from gaps between the first dust-proof cover 4 and the second dust-proof cover 5 through the first lug 10 and the second dust-proof cover 5, and the dust-proof cover 4 can not enter the bearing firmly.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the principles of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a deep groove ball bearing, includes outer lane (1), inner circle (2), steel ball (3), first shield (4) and second shield (5), its characterized in that: be provided with inner circle (2) in outer lane (1), outer lane (1) both ends all are provided with first shield (4), inner circle (2) both ends all are provided with second shield (5), first shield (4) are connected with second shield (5) rotation, outer lane (1) both ends are equipped with four first draw-in grooves (6) respectively, first shield (4) are located outer lane (1) one side and are provided with four first fixture blocks (7), first draw-in groove (6) and first fixture block (7) joint, inner circle (2) both ends are equipped with four second draw-in grooves (8) respectively, second shield (5) are located inner circle (2) one side and are provided with four second fixture blocks (9), second draw-in groove (8) and second fixture block (9) joint.

2. A deep groove ball bearing in accordance with claim 1 wherein: one end of the first dust cover (4) is provided with a first lug (10), one end of the second dust cover (5) is provided with a second lug (11), and the first lug (10) is rotationally connected with the second lug (11).

3. A deep groove ball bearing in accordance with claim 2 wherein: a steel ball (3) is arranged between the outer ring (1) and the inner ring (2).

4. A deep groove ball bearing in accordance with claim 3 wherein: the outer ring (1) and the inner ring (2) are both provided with grooves (12) matched with the steel balls (3) at one ends of the steel balls (3).

5. The deep groove ball bearing of claim 4 wherein: two retainers (13) are arranged between the outer ring (1) and the inner ring (2), and the retainers (13) are in sliding connection with the steel balls (3).

6. The deep groove ball bearing of claim 5, wherein: the retainer (13) is positioned between the two steel balls (3) and is in threaded connection with a screw (14).