CN220204383U - High-tightness deep groove ball bearing - Google Patents

Abstract

The utility model discloses a high-tightness deep groove ball bearing, which comprises a bearing inner ring, a bearing outer ring and a combined seal, wherein the bearing outer ring is sleeved outside the bearing inner ring, a retainer is arranged between the bearing inner ring and the bearing outer ring, a plurality of spherical rollers are arranged on the retainer, the two combined seals are respectively arranged on two sides of the bearing, the combined seal comprises an inner baffle sealing element and an outer baffle sealing element, the inner baffle sealing element is clamped on the bearing outer ring, the outer baffle sealing element is sleeved on the bearing inner ring, the outer baffle sealing element is arranged outside the inner baffle sealing element, the inner baffle sealing element and the outer baffle sealing element are tightly attached.

Description

High-tightness deep groove ball bearing

Technical Field

The utility model relates to the technical field of bearing products, in particular to a deep groove ball bearing with high sealing performance.

Background

The bearing is an important part in modern mechanical equipment, is mainly used as a core transmission part, is a common bearing variety, and is widely applied to various equipment. The structural design of the bearing is different according to different use environments. The deep groove ball bearing used in severe environments (such as farmland environments, greasy dirt environments and the like) needs to have higher sealing requirements, more muddy water, greasy dirt and other impurities exist in the severe environments, if the bearing with conventional sealing performance is used, the impurities easily leak into the bearing, the service life of the bearing is greatly reduced, the equipment failure rate is greatly improved, and the production operation is greatly influenced, so that the development of the deep groove ball bearing with high sealing performance is an urgent current requirement for equipment production units.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a deep groove ball bearing with high sealing performance.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a high leakproofness's deep groove ball bearing, includes bearing inner circle, bearing outer lane and combination seal, bearing outer lane suit is in the bearing inner circle outside, install the holder between bearing inner circle and the bearing outer lane, install a plurality of spherical roller on the holder, two the combination seal is installed in the both sides of bearing respectively, the combination seal includes interior fender sealing member and keeps off sealing member outward, interior fender sealing member cartridge is on the bearing outer lane, outer fender sealing member suit is on the bearing inner lane, the outer fender sealing member is located in keeping off the sealing member outside, interior fender sealing member closely laminates with outer fender sealing member.

The inner baffle sealing member comprises a first framework, a clamping head mounting groove is formed in the inner wall of the bearing outer ring, a bending clamping head is formed at the outer diameter end of the first framework, the bending clamping head can slide into and be clamped in the clamping head mounting groove, a multi-lip sealing sleeve is mounted on the outer wall of the inner diameter end of the first framework in a coating mode, and the multi-lip sealing sleeve can extend to be in contact with the outer wall of the bearing inner ring and can form a sealing effect on the position of the bearing inner ring.

The inner diameter end of the multi-lip sealing sleeve is protruded to form a plurality of lower long lips, a sealing groove is formed in the outer wall of the bearing inner ring, and the lower long lips extend to abut against the groove wall of the sealing groove.

And the inner wall of the bearing outer ring is also provided with a clamping head sealing ring, the clamping head sealing ring is correspondingly arranged at the position of the bending clamping head, and after the inner baffle sealing piece is installed, the clamping head sealing ring can be abutted against the side bending wall of the bending clamping head.

The outer fender sealing member includes the second skeleton, the tight cover of second skeleton installs on the bearing inner race outer wall, leave the clearance between the first skeleton of second skeleton and interior fender sealing member, be connected with the passageway seal lip on the medial surface of second skeleton, passageway seal lip one end is inconsistent with first skeleton lateral wall, be equipped with the short lip of a plurality of side on the multi-lip seal cover of interior fender sealing member, the short lip one end of side is inconsistent with the second skeleton inside wall.

The outer wall of the bearing inner ring can be fixedly provided with a positioning check ring, and the positioning check ring is blocked on an escape route of the outer baffle sealing element.

The beneficial effects of the utility model are as follows: the combined sealing structure design is adopted, the outer baffle sealing piece has a good dirt baffle effect, the outer baffle sealing piece and the inner baffle sealing piece can form a multi-layer sealing effect after being combined, dust prevention, water prevention and leakage prevention can be effectively realized, the service life of the bearing can be greatly prolonged under the effect of the structure, and the use requirement of operation equipment under a severe environment can be met.

Drawings

FIG. 1 is a front elevational view of the structure of the present utility model;

fig. 2 is an enlarged view at a in fig. 1.

In the figure: the bearing inner ring 1, the sealing groove 11, the bearing outer ring 2, the clamp mounting groove 21, the retainer 3, the spherical roller 4, the combined seal 5, the inner baffle seal member 51, the first framework 511, the bent clamp 5111, the multi-lip seal sleeve 512, the lower long lip 513, the side short lip 514, the outer baffle seal member 52, the second framework 521, the channel seal lip 522, the clamp seal ring 53 and the positioning retainer ring 54.

Detailed Description

The utility model is further described with reference to the drawings and detailed description, wherein the description of the utility model such as "left" and "right" is directed with reference to fig. 1:

as shown in fig. 1-2, a high-tightness deep groove ball bearing comprises a bearing inner ring 1, a bearing outer ring 2 and a combined seal 5, wherein the bearing outer ring 2 is sleeved on the outer side of the bearing inner ring 1, a retainer 3 is arranged between the bearing inner ring 1 and the bearing outer ring 2, a plurality of spherical rollers 4 are arranged on the retainer 3, the retainer 3 is used for positioning and installing the spherical rollers 4, the spherical rollers 4 can be prevented from interfering with each other when the bearing moves, the spherical rollers 4 play the bearing and transmission roles of the bearing, the two combined seals 5 are respectively arranged on two sides of the bearing, the combined seal 5 comprises an inner baffle seal 51 and an outer baffle seal 52, the inner baffle seal 51 is clamped on the bearing outer ring 2, the outer baffle seal 52 is sleeved on the bearing inner ring 1, the outer baffle seal 52 is arranged on the outer side of the inner baffle seal 51, and the inner baffle seal 51 and the outer baffle seal 52 are tightly attached.

The inner baffle sealing member 51 comprises a first framework 511, the first framework 511 is a metal framework, the metal framework has rigidity and plays a supporting role of the sealing member, a clamp mounting groove 21 is formed in the inner wall of the bearing outer ring 2, a bending clamp 5111 is formed at the outer diameter end of the first framework 511, the bending clamp 5111 has certain elasticity, the bending clamp 5111 can slide into and be clamped in the clamp mounting groove 21 under the pressing operation, so that the inner baffle sealing member 51 is integrally positioned and mounted, a multi-lip sealing sleeve 512 is mounted on the outer wall of the inner diameter end of the first framework 511 in a coating mode, the multi-lip sealing sleeve 512 can extend to be in contact with the outer wall of the bearing inner ring 1, and a sealing effect can be formed on the position of the bearing inner ring 1.

The inner diameter end of the multi-lip sealing sleeve 512 is convexly provided with a plurality of lower long lips 513, the outer wall of the bearing inner ring 1 is provided with a sealing groove 11, the lower long lips 513 are all extended to be abutted against the groove wall of the sealing groove 11, the number of the lower long lips 513 is preferably three (the number is more, the sealing lifting effect is not large, and the manufacturing cost of the multi-lip sealing sleeve 512 is easy to improve), the combination of the sealing groove 11 and the lower long lips 513 can form a plurality of sealing effects on the position of the bearing inner ring 1, and the fact that impurities cannot enter the bearing inner ring 1 from the position is ensured (when the bearing is used, the bearing inner ring 1 needs to rotate relatively, so that the outer wall position of the bearing inner ring 1 is a weak link of sealing, the plurality of sealing can effectively lift the sealing effect, and reduce the leakage probability).

The inner wall of the bearing outer ring 2 is also provided with a clamping head sealing ring 53, the clamping head sealing ring 53 is correspondingly arranged at the position of the bending clamping head 5111, after the inner baffle sealing piece 51 is installed, the clamping head sealing ring 53 can be abutted against the side bending wall of the bending clamping head 5111, the bending clamping head 5111 is fixedly arranged, and no rotation condition exists, so that the position is only provided with the clamping head sealing ring 53 for sealing, and the bending clamping head 5111 has certain folding deformability, so that the prior installation of the clamping head sealing ring 53 does not influence the pressing and pushing operation of the bending clamping head 5111, after the bending clamping head 5111 is installed, the bending clamping head 5111 can recover from deformation, the side bending wall of the bending clamping head upwards rebounds, and the side bending wall of the bending clamping head can be tightly pressed and covered on the clamping head sealing ring 53, so as to form the sealing effect of the inner wall position of the bearing outer ring 2.

The outer baffle seal 52 comprises a second framework 521, the second framework 521 is tightly sleeved on the outer wall of the bearing inner ring 1, and can rotate along with the bearing inner ring 1, a gap is reserved between the second framework 521 and the first framework 511 of the inner baffle seal 51, a channel seal lip 522 is connected to the inner side surface of the second framework 521, one end of the channel seal lip 522 is in contact with the outer side wall of the first framework 511, a plurality of side short lips 514 are arranged on the multi-lip sealing sleeve 512 of the inner baffle seal 51, one end of the side short lips 514 is in contact with the inner side wall of the second framework 521, when the device is used in a severe environment, muddy water or greasy dirt can splash in a large amount, if the outer baffle seal 52 is not designed, a large amount of dirt directly contacts with the inner baffle seal 51, the sealing failure of the inner baffle seal 51 is caused, and the service life of the bearing is influenced.

The outer wall of the bearing inner ring 1 can be fixedly provided with the positioning check ring 54, the positioning check ring 54 is blocked on the outward escape route of the outer baffle seal member 52, when the combined seal 5 is assembled, the inner baffle seal member 51 is assembled, the outer baffle seal member 52 is assembled, and finally the positioning check ring 54 is clamped to fix the installation position of the outer baffle seal member 52 so as to prevent the outer baffle seal member 52 from escaping and falling off in the using process.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (4)

1. The utility model provides a high leakproofness's deep groove ball bearing, includes bearing inner race (1), bearing outer lane (2) and combination seal (5), its characterized in that: the bearing outer ring (2) is sleeved outside the bearing inner ring (1), a retainer (3) is arranged between the bearing inner ring (1) and the bearing outer ring (2), a plurality of spherical rollers (4) are arranged on the retainer (3), the two combined seals (5) are respectively arranged on two sides of the bearing, the combined seals (5) comprise an inner retaining seal (51) and an outer retaining seal (52), the inner retaining seal (51) is clamped on the bearing outer ring (2), the outer retaining seal (52) is sleeved on the bearing inner ring (1), the outer retaining seal (52) is arranged on the outer side of the inner retaining seal (51), the inner retaining seal (51) and the outer retaining seal (52) are tightly attached, the inner retaining seal (51) comprises a first framework (511), a mounting groove (21) is formed in the inner wall of the bearing outer ring (2), the outer diameter end of the first framework (511) is provided with a clamping head (5111), the bending head (5111) can be clamped on the bearing outer ring (2) and can be contacted with the inner ring (511) at a plurality of sealing lips (512) which are arranged on the inner ring (511) in a plurality of sealing lips, and can be contacted with each other, the outer baffle sealing element (52) comprises a second framework (521), the second framework (521) is tightly sleeved on the outer wall of the bearing inner ring (1), a gap is reserved between the second framework (521) and the first framework (511) of the inner baffle sealing element (51), a channel sealing lip (522) is connected to the inner side surface of the second framework (521), one end of the channel sealing lip (522) is in contact with the outer side wall of the first framework (511), a plurality of side short lips (514) are arranged on the multi-lip sealing sleeve (512) of the inner baffle sealing element (51), and one end of each side short lip (514) is in contact with the inner side wall of the second framework (521).

2. A high tightness deep groove ball bearing according to claim 1, wherein: the inner diameter end of the multi-lip sealing sleeve (512) is convexly provided with a plurality of lower long lips (513), the outer wall of the bearing inner ring (1) is provided with a sealing groove (11), and the lower long lips (513) extend to abut against the groove wall of the sealing groove (11).

3. A high tightness deep groove ball bearing according to claim 1, wherein: and a clamping head sealing ring (53) is further arranged on the inner wall of the bearing outer ring (2), the clamping head sealing ring (53) is correspondingly arranged at the position of the bending clamping head (5111), and after the inner blocking sealing piece (51) is installed, the clamping head sealing ring (53) can be abutted against the lateral bending wall of the bending clamping head (5111).

4. A high tightness deep groove ball bearing according to claim 1, wherein: the outer wall of the bearing inner ring (1) can be fixedly provided with a positioning check ring (54), and the positioning check ring (54) is blocked on an escape route of the outer baffle sealing piece (52).