CN218913462U

CN218913462U - High-temperature-resistant ceramic bearing

Info

Publication number: CN218913462U
Application number: CN202222925661.8U
Authority: CN
Inventors: 徐薛蕊; 芮伯福; 柯雄军; 胡创业
Original assignee: Haining Naite Ceramic Bearing Co ltd
Current assignee: Haining Naite Ceramic Bearing Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-04-25
Anticipated expiration: 2032-11-03

Abstract

The utility model relates to a high-temperature-resistant ceramic bearing, and belongs to the technical field of ceramic bearings. Including inner circle, outer lane, holder and rolling element, inner circle both ends face is equipped with a plurality of first fin, and a plurality of first fin winds the inner circle circumference evenly arranges, outer lane both ends face is equipped with a plurality of second fin, and a plurality of second fin winds the outer lane circumference evenly arranges. The utility model solves the problem of poor heat dissipation of the bearing in the prior art.

Description

High-temperature-resistant ceramic bearing

Technical Field

The utility model relates to a high-temperature-resistant ceramic bearing, and belongs to the technical field of ceramic bearings.

Background

Bearings are commonly used in the mating parts between mechanical rotating parts, and since their advent have been irreplaceable, with the rapid development of high-speed processing techniques, the demands on bearings by production equipment have been increasing. Ceramic bearings are widely used because of their high temperature resistance, high strength, insulation, etc.

Through searching, the technical key points of the ceramic bearing disclosed in the Chinese patent with the publication number of CN112664570A are as follows: the ball bearing comprises a bearing outer ring, a bearing inner ring, a sealing mechanism, a retainer, a ball seat, balls and sliding grooves, wherein the bearing outer ring is sleeved outside the bearing inner ring, the sealing mechanism is movably arranged at the upper end and the lower end between the bearing outer ring and the bearing inner ring, the retainer is movably arranged at the middle position between the bearing outer ring and the bearing inner ring, the ball seats are equidistantly distributed on the surface of the retainer, the balls are embedded in the ball seats, and the sliding grooves are formed in the inner surface of the bearing outer ring and the outer surface of the bearing inner ring; the upper end and the lower end of the inner surface of the bearing outer ring are respectively provided with a baffle ring, and the outer surface of one end, close to the retainer, of the baffle ring is provided with an annular groove.

The sealing mechanism is arranged in the scheme to seal the bearing, so that external impurities are prevented from entering the bearing, and the balls in the bearing are damaged.

There is therefore a need to propose a new solution to this problem.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the high-temperature-resistant ceramic bearing solves the problem of poor heat dissipation of the bearing in the prior art.

The technical problems to be solved by the utility model are realized by adopting the following technical scheme:

the utility model provides a high temperature resistant ceramic bearing, includes inner circle, outer lane, holder and rolling element, inner circle both ends face is equipped with a plurality of first fin, and a plurality of first fin winds the inner circle circumference evenly arranges, outer lane both ends face is equipped with a plurality of second fin, and a plurality of second fin winds the outer lane circumference evenly arranges.

Through adopting above-mentioned technical scheme, through setting up first fin and second fin respectively at inner circle and outer lane, when the bearing intensifies, through with heat transfer to the fin, increase and the air between area of contact, promote the holistic radiating efficiency of bearing.

The utility model is further provided with: the first radiating fins extend in a spiral line shape around the axis of the inner ring, and the second radiating fins extend in a spiral line shape around the axis of the outer ring.

Through adopting above-mentioned technical scheme, all be spiral line setting with first fin and second fin, make inner circle or outer lane when rotating, drive first fin or second fin and rotate around the bearing axis, first fin or second fin drive the air around the bearing and flow towards the bearing inboard or outside, further promote the holistic radiating efficiency of bearing, and through spiral line setting, reduce the air resistance that first fin or second fin received at the rotation in-process.

The utility model is further provided with: the first radiating fins and the second radiating fins are opposite in rotation direction.

Through adopting above-mentioned technical scheme, be the anti-rotation setting with first fin and second fin, when making inner circle rotate or outer lane rotate, all can circulate the air towards bearing center department to the radiating effect of lifting bearing shaft body.

The utility model is further provided with: the inner ring outer wall is characterized in that two ends of the inner ring outer wall are fixedly connected with first sealing rings, a plurality of first heat dissipation holes are uniformly formed in the first sealing rings, first sealing grooves matched with the first sealing rings and extending around the circumference of the first sealing rings are formed in the inner wall of the outer ring, and the outer edges of the first sealing rings are clamped in the first sealing grooves.

Through adopting above-mentioned technical scheme, through setting up first sealing ring to offer first louvre on first sealing ring, when guaranteeing bearing leakproofness, make the inside heat of bearing can be through first louvre effluvium.

The utility model is further provided with: the inner ring is characterized in that the two ends of the inner wall of the outer ring are fixedly connected with second sealing rings, a plurality of second heat dissipation holes are uniformly formed in the second sealing rings, a second sealing groove which is matched with the first sealing rings and extends around the circumference of the first sealing rings is formed in the outer wall of the inner ring, and the inner edge of the second sealing ring is clamped in the second sealing groove.

Through adopting above-mentioned technical scheme, through setting up the second sealing ring to set up the second louvre on the second sealing ring, because first sealing ring is connected in the inner circle, the second sealing ring is connected in the outer lane, can further block to external dust, promote the leakproofness of bearing.

The utility model is further provided with: the second sealing ring is located one side of the first sealing ring, which is close to the rolling body, and a plurality of first heat dissipation holes are staggered in the axial direction of the bearing.

Through adopting above-mentioned technical scheme, be crisscross setting with first louvre and first louvre in the bearing axial, make outside dust be difficult for directly entering into the bearing inside through first louvre and second louvre, guaranteed the leakproofness of bearing.

The utility model is further provided with: the first sealing ring is arranged in a clearance mode with the first sealing groove, and the second sealing ring is arranged in a clearance mode with the second sealing groove.

Through adopting above-mentioned technical scheme, make between first sealing ring and the first seal groove and all be the clearance setting between second sealing ring and the second seal groove to reduce the frictional force when inner circle and outer lane relative rotation, guarantee bearing moving stability.

The beneficial effects of the utility model are as follows:

1. the first radiating fins and the second radiating fins are arranged in a spiral line shape, so that when the inner ring or the outer ring rotates, the first radiating fins or the second radiating fins are driven to rotate around the axis of the bearing, the first radiating fins or the second radiating fins drive air around the bearing to flow towards the inner side or the outer side of the bearing, the overall radiating efficiency of the bearing is further improved, and the air resistance of the first radiating fins or the second radiating fins in the rotating process is reduced through the spiral line-shaped arrangement;

2. by arranging the first sealing ring and the second sealing ring, the heat in the bearing can be dissipated through the first heat dissipation holes and the second heat dissipation holes while the tightness of the bearing is ensured;

3. the first radiating holes and the first radiating holes are arranged in a staggered mode in the axial direction of the bearing, so that external dust is not easy to directly enter the bearing through the first radiating holes and the second radiating holes, and the sealing performance of the bearing is guaranteed.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a partial cross-sectional view of the present utility model.

In the figure: 1. an inner ring; 2. an outer ring; 3. a retainer; 4. a rolling element; 5. a first seal ring; 6. a second seal ring; 7. a first heat radiation hole; 8. a second heat radiation hole; 9. a first seal groove; 10. a second seal groove; 11. a first heat sink; 12. and a second heat sink.

Detailed Description

The utility model will be further described with reference to the following detailed drawings, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-2, a high temperature resistant ceramic bearing comprises an inner ring 1, an outer ring 2, a retainer 3 and rolling bodies 4, wherein two ends of the outer wall of the inner ring 1 are fixedly connected with first sealing rings 5, a plurality of first heat dissipation holes 7 are uniformly formed in the first sealing rings 5, two ends of the inner wall of the outer ring 2 are fixedly connected with second sealing rings 6, a plurality of second heat dissipation holes 8 are uniformly formed in the second sealing rings 6, the second sealing rings 6 are located on one side, close to the rolling bodies 4, of the first sealing rings 5, and a plurality of first heat dissipation holes 7 are staggered in the axial direction of the bearing.

Through setting up first sealing ring 5 and second sealing ring 6, because first sealing ring 5 is connected in inner circle 1, second sealing ring 6 is connected in outer lane 2, can further block outside dust, when guaranteeing the bearing leakproofness, make the inside heat of bearing can be through first louvre 7 and second louvre 8 effluvium, and be crisscross setting with first louvre 7 and first louvre 7 in the bearing axial, make outside dust be difficult for directly entering into the bearing inside through first louvre 7 and second louvre 8.

The inner wall of the outer ring 2 is provided with a first sealing groove 9 which is matched with the first sealing ring 5 and extends around the circumference of the first sealing ring, the outer edge of the first sealing ring 5 is clamped in the first sealing groove 9, a gap is formed between the first sealing ring 5 and the first sealing groove 9, the outer wall of the inner ring 1 is provided with a second sealing groove 10 which is matched with the first sealing ring 5 and extends around the circumference of the first sealing ring, the inner edge of the second sealing ring 6 is clamped in the second sealing groove 10, and the second sealing ring 6 and the second sealing groove 10 are arranged in a gap.

The two end faces of the inner ring 1 are provided with a plurality of first radiating fins 11, the first radiating fins 11 are uniformly distributed around the circumference of the inner ring 1, the two end faces of the outer ring 2 are provided with a plurality of second radiating fins 12, and the second radiating fins 12 are uniformly distributed around the circumference of the outer ring 2.

In order to improve the heat dissipation of the bearing, the first heat dissipation plate 11 extends in a spiral shape around the axis of the inner ring 1, the second heat dissipation plate 12 extends in a spiral shape around the axis of the outer ring 2, and the first heat dissipation plate 11 and the second heat dissipation plate 12 are opposite in rotation direction.

Through setting up first fin 11 and second fin 12 respectively at inner circle 1 and outer lane 2, when the bearing intensifies, through transmitting the heat to the fin, increase with the area of contact between the air, and make inner circle 1 or outer lane 2 when rotating, drive first fin 11 or second fin 12 and rotate around the bearing axis, first fin 11 or second fin 12 drive the air around the bearing and flow towards the bearing inboard or outside, further promote the holistic radiating efficiency of bearing, and through the setting of spiral line, reduce the air resistance that first fin 11 or second fin 12 received in the rotation process.

The implementation principle of the utility model is as follows:

when the bearing heats up, through transmitting the heat to the fin, increase and air between the area of contact, and make inner circle 1 or outer lane 2 when rotating, drive first fin 11 or second fin 12 and rotate around the bearing axis, first fin 11 or second fin 12 drive the air around the bearing and flow towards the bearing inboard or outside, further promote the holistic radiating efficiency of bearing, and through the setting of spiral line, reduce the air resistance that first fin 11 or second fin 12 received in the rotation process.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, but is capable of various changes and modifications without departing from the spirit and scope of the utility model. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high temperature resistant ceramic bearing, includes inner circle (1), outer lane (2), holder (3) and rolling element (4), its characterized in that: the novel heat exchanger is characterized in that a plurality of first radiating fins (11) are arranged on two end faces of the inner ring (1), the first radiating fins (11) are uniformly distributed around the circumference of the inner ring (1), a plurality of second radiating fins (12) are arranged on two end faces of the outer ring (2), and the second radiating fins (12) are uniformly distributed around the circumference of the outer ring (2).

2. A high temperature resistant ceramic bearing according to claim 1, wherein: the first radiating fins (11) extend spirally around the axis of the inner ring (1), and the second radiating fins (12) extend spirally around the axis of the outer ring (2).

3. A high temperature resistant ceramic bearing according to claim 2, wherein: the first radiating fins (11) and the second radiating fins (12) are opposite in rotation direction.

4. A high temperature resistant ceramic bearing according to claim 3, wherein: the inner ring is characterized in that the two ends of the outer wall of the inner ring (1) are fixedly connected with first sealing rings (5), a plurality of first heat dissipation holes (7) are uniformly formed in the first sealing rings (5), first sealing grooves (9) which are matched with the first sealing rings (5) and extend around the circumference of the first sealing rings are formed in the inner wall of the outer ring (2), and the outer edges of the first sealing rings (5) are clamped in the first sealing grooves (9).

5. The high temperature resistant ceramic bearing of claim 4, wherein: the inner ring is characterized in that second sealing rings (6) are fixedly connected to two ends of the inner wall of the outer ring (2), a plurality of second heat dissipation holes (8) are uniformly formed in the second sealing rings (6), a second sealing groove (10) which is matched with the first sealing rings (5) and extends around the circumference of the first sealing rings is formed in the outer wall of the inner ring (1), and the inner edge of each second sealing ring (6) is clamped in the second sealing groove (10).

6. The high temperature resistant ceramic bearing of claim 5, wherein: the second sealing ring (6) is positioned on one side, close to the rolling body (4), of the first sealing ring (5), and a plurality of first radiating holes (7) are arranged in a staggered mode in the axial direction of the bearing.

7. The high temperature resistant ceramic bearing of claim 5, wherein: the first sealing ring (5) and the first sealing groove (9) are arranged in a clearance mode, and the second sealing ring (6) and the second sealing groove (10) are arranged in a clearance mode.