CN214661554U - Dustproof sealing bearing - Google Patents

Abstract

The utility model belongs to the technical field of the technique of bearing and specifically relates to a dustproof sealing bearing is related to, including outer lane, inner circle, setting holder and the rolling element of setting on the holder between outer lane and inner circle, be provided with sealed lid between outer lane and the inner circle, sealed lid have with the inboard of inner circle looks joint and with the outside of outer lane looks butt. The inner ring is fixedly provided with clamping blocks, the clamping blocks are uniformly distributed along the circumferential direction of the inner ring, the inner side of the sealing cover is provided with clamping holes matched with the clamping blocks, the outer ring is provided with grooves along the circumferential direction, and the outer side of the sealing cover extends into the grooves. The fixture block comprises two connecting portions fixedly arranged on the inner ring and a clamping portion integrally formed on the connecting portions, a gap exists between the connecting portions, and the clamping portion protrudes towards the direction away from each other. Chamfers are arranged on the outer ring and the inner ring. This application has the effect of blockking that external dust enters into between inner circle and the outer lane.

Description

Dustproof sealing bearing

Technical Field

The application relates to the technical field of bearings, in particular to a dustproof sealing bearing.

Background

The bearing is an important part in the modern mechanical equipment. The main function of the bearing is to support the mechanical rotator, reduce the friction coefficient in the movement process and ensure the rotation precision.

The bearing has wide application scenes, and when the bearing is used in severe working environment, external dust easily enters the bearing, so that the smoothness of the bearing during rotation is influenced.

SUMMERY OF THE UTILITY MODEL

In order to prevent external dust from entering between the inner ring and the outer ring, the dustproof sealing bearing is provided.

The application provides a dustproof sealing bearing adopts following technical scheme:

the utility model provides a dustproof sealing bearing, includes outer lane, inner circle, sets up holder and the rolling element of setting on the holder between outer lane and inner circle, be provided with sealed lid between outer lane and the inner circle, sealed lid have with the inboard of inner circle looks joint and with the outside of outer lane looks butt.

Through adopting above-mentioned technical scheme, sealed lid covers between inner circle and outer lane to with holder and rolling element cover inside, played the effect that blocks to external dust, make the dust be difficult for entering into between inner circle and the outer lane and cause the influence to rolling element and holder.

Optionally, the inner ring is fixedly provided with clamping blocks, the clamping blocks are uniformly distributed along the circumferential direction of the inner ring, the inner side of the sealing cover is provided with clamping holes matched with the clamping blocks, the outer ring is provided with grooves along the circumferential direction, and the outer side of the sealing cover extends into the grooves.

Through adopting above-mentioned technical scheme, when the sealed lid of installation, the joint hole on will sealing the lid aligns with the fixture block that circles in, presses sealed lid for sealed lid is in the same place with the fixture block joint. When the inner ring rotates, the sealing cover can rotate along with the inner ring. The outer side of the sealing cover extends into the groove in the outer ring, so that the sealing cover and the outer ring can rotate relatively, and the normal rotation between the inner ring and the outer ring cannot be influenced.

Optionally, the fixture block includes two connecting portions fixedly arranged on the inner ring and a clamping portion integrally formed on the connecting portions, two there is a gap between the connecting portions, two the clamping portion protrudes towards the direction away from each other.

Through adopting above-mentioned technical scheme, when the sealed lid of installation, the joint hole on will sealing the lid aligns with the fixture block, then presses sealed lid. Two joint portions buckle towards the direction that is close to each other under the effect of sealed lid for joint portion can pass the joint hole. The joint portion can support after passing the joint hole and cover at sealed, compress tightly sealed lid including circling to circle including fixed sealed lid.

Optionally, the shape of the clamping portion is a cone, and the cross-sectional area of the clamping portion is gradually reduced along a direction away from the inner ring.

Through adopting above-mentioned technical scheme, set up joint portion into the toper for joint portion passes the joint hole more easily, has made things convenient for the installation of sealed lid. Simultaneously, joint portion supports after passing the joint hole and covers at sealed for joint portion is difficult for breaking away from sealed covering.

Optionally, a sealing gasket is fixedly arranged in the groove on the outer ring.

Through adopting above-mentioned technical scheme, sealed setting up of filling up makes sealed lid and be connected inseparabler between the outer lane to promote the seal, can further block that external dust enters into between outer lane and the inner circle.

Optionally, the outer side of the sealing cover is provided with gaps, and the gaps are uniformly distributed along the circumferential direction of the sealing cover.

Through adopting above-mentioned technical scheme, the setting up of opening makes the outside of sealed lid take place deformation more easily for the staff is easier when advancing the outside card of sealing washer into the recess, has reduced the installation degree of difficulty.

Optionally, the sealing cover is integrally formed with a reinforcing rib.

Through adopting above-mentioned technical scheme, the reinforcing bar can promote the structural strength of sealed lid for sealed lid is difficult for breaking, has improved the life of sealed lid.

Optionally, chamfers are arranged on the outer ring and the inner ring.

By adopting the technical scheme, on one hand, the problem of stress concentration can be reduced by arranging the chamfer; on the other hand, the chamfer can facilitate the assembly of parts.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sealing cover is arranged between the inner ring and the outer ring, so that the retainer and the rolling body cover are arranged inside, the function of blocking external dust is achieved, and the dust is not easy to enter between the inner ring and the outer ring to influence the rolling body and the retainer.

2. The sealing gasket is arranged to enable the sealing cover and the outer ring to be connected more tightly, so that the sealing performance is improved, and external dust can be further prevented from entering the space between the outer ring and the inner ring.

Drawings

Fig. 1 is a schematic sectional view of an embodiment of the present application.

Fig. 2 is a schematic diagram of an explosive structure according to an embodiment of the present application.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Reference numerals: 11. an outer ring; 111. a groove; 112. a gasket; 12. an inner ring; 121. a clamping block; 1211. a connecting portion; 1212. a clamping part; 13. a holder; 14. a rolling body; 2. a sealing cover; 21. a clamping hole; 22. opening the gap; 23. and reinforcing the ribs.

Detailed Description

The technical solutions in the present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a dustproof sealing bearing. Referring to fig. 1 and 2, a dust seal bearing includes an outer ring 11, an inner ring 12 disposed inside the outer ring 11, a cage 13 disposed between the outer ring 11 and the inner ring 12, and rolling bodies 14 disposed on the cage 13. The rolling bodies 14 abut against the outer ring 11 and the inner ring 12, respectively, so that relative rotation can occur between the outer ring 11 and the inner ring 12. A seal cover 2 is provided between the outer ring 11 and the inner ring 12, and the seal cover 2 covers a gap between the outer ring 11 and the inner ring 12 inside to isolate dust from the outside, thereby protecting the cage 13 and the rolling elements 14 between the outer ring 11 and the inner ring 12. The sealing cover 2 has an inner side engaged with the inner ring 12 and an outer side abutting against the outer ring 11. When relative rotation occurs between the outer ring 11 and the inner ring 12, the seal cover 2 rotates along with the inner ring 12, and the outer side of the seal cover 2 contacts the outer ring 11, so that friction is generated.

Referring to fig. 1 and 2, the inner ring 12 is fixedly provided with latch blocks 121 at two sides thereof, and the latch blocks 121 are uniformly distributed along the circumferential direction of the inner ring 12. Offer in the inboard of sealed lid 2 with fixture block 121 assorted joint hole 21 for fixture block 121 can the joint on joint hole 21, thereby with the rigidity of sealed lid 2, when making inner circle 12 rotate, sealed lid 2 can rotate along with inner circle 12 together. Wherein, the thickness of outer lane 11 is greater than the thick end of inner circle 12, has seted up recess 111 along circumference on the medial surface of outer lane 11 for the outside of sealed lid 2 can stretch into in recess 111, thereby has played spacing effect to sealed lid 2. Meanwhile, the sealing cover 2 is clamped in the groove 111, so that the sealing performance of the sealing cover 2 can be improved, and external dust is not easy to enter between the outer ring 11 and the inner ring 12.

Referring to fig. 2 and 3, the latch 121 includes two connecting portions 1211 fixedly disposed on the inner ring 12 and a latch portion 1212 integrally formed at an end of the connecting portion 1211 opposite to the inner ring 12. A gap is formed between the two connection portions 1211 so that the two connection portions 1211 can be bent in a direction to approach each other. The two engagement portions 1212 protrude in a direction away from each other. When the sealing cover 2 is installed, the latch 121 is aligned with the latch hole 21, and the sealing cover 2 is pressed toward the inner ring 12. The two clamping portions 1212 move toward the direction of approaching each other under the action of the sealing cover 2, so that the two clamping portions 1212 pass through the clamping holes 21 and then abut against the sealing cover 2, and the sealing cover 2 is pressed on the inner ring 12.

Wherein, joint portion 1212 can play spacing and reinforced (rfd) effect to sealed lid 2 for sealed lid 2 keeps firmly on inner circle 12, makes sealed lid 2 be difficult for dropping from inner circle 12.

Further, referring to fig. 3, in order to reduce the difficulty in installing the sealing cap 2, the clamping portion 1212 is tapered. The cross-sectional area of the clamping portion 1212 decreases in a direction away from the inner ring 12, thereby forming an inclined surface. When sealed lid 2 installation, joint portion 1212 can play the effect of direction for joint portion 1212 stretches into in joint hole 21 more easily, and passes joint hole 21 back at joint portion 1212, and joint portion 1212 supports on sealed lid 2, makes joint portion 1212 difficult break away from in joint hole 21.

Referring to fig. 1 and 2, in order to further improve the sealing performance of the sealing cover 2, a sealing gasket 112 is fixedly disposed on the outer ring 11 in the groove 111. The packing 112 is covered on the inner wall of the groove 111 so that the sealing cover 2 is in contact with the packing 112. In some implementations, the gasket 112 is made of rubber. The rubber has excellent elasticity and abrasion resistance so that the connection between the packing 112 and the seal cover 2 is more tight when the outer side of the seal cover 2 is inserted into the groove 111.

Meanwhile, the sealing gasket 112 also plays a certain protection role for the outer ring 11, so that the sealing cover 2 cannot generate friction with the outer ring 11 when rotating along with the inner ring 12, and the service life of the outer ring 11 is prolonged to a certain extent.

Referring to fig. 1 and 2, in order to facilitate the extension of the outer side of the sealing cover 2 into the groove 111, a gap 22 is formed on the sealing cover 2. The gaps 22 are opened on the outer side of the sealing cover 2 and are uniformly distributed along the circumferential direction of the sealing cover 2. The opening of the notch 22 enables the outer side of the sealing cover 2 to be bent and deformed aiming at partial positions without damaging the overall shape, so that a worker can more easily clamp the outer side of the sealing cover 2 into the groove 111 when installing the sealing cover 2.

Referring to fig. 1 and 2, in order to improve the overall structural strength of the sealing cover 2, a reinforcing rib 23 is integrally formed on the sealing cover 2. The reinforcing ribs 23 are uniformly arranged along the circumferential direction of the seal cover 2, and are radially provided on the seal cover 2. The plane of the reinforcing rib 23 is perpendicular to the plane of the sealing cover 2.

Chamfers are arranged on the outer ring 11 and the inner ring 12, so that burrs generated by machining are removed, and assembly of parts is facilitated. On the other hand, the chamfer angle is favorable for releasing stress and redistributing an internal structure during heat treatment, and can also reduce the problem of stress concentration.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a dustproof sealed bearing which characterized in that: including outer lane (11), inner circle (12), set up holder (13) between outer lane (11) and inner circle (12) and set up rolling element (14) on holder (13), be provided with sealed lid (2) between outer lane (11) and inner circle (12), sealed lid (2) have with inner circle (12) inboard of looks joint and with the outside of outer lane (11) looks butt.

2. The dust sealed bearing of claim 1, wherein: the sealing structure is characterized in that clamping blocks (121) are fixedly arranged on the inner ring (12), the clamping blocks (121) are uniformly distributed along the circumferential direction of the inner ring (12), clamping holes (21) matched with the clamping blocks (121) are formed in the inner side of the sealing cover (2), grooves (111) are formed in the outer ring (11) along the circumferential direction, and the outer side of the sealing cover (2) extends into the grooves (111).

3. The dust sealed bearing of claim 2, wherein: the fixture block (121) comprises two connecting parts (1211) fixedly arranged on the inner ring (12) and clamping parts (1212) integrally formed on the connecting parts (1211), a gap exists between the two connecting parts (1211), and the two clamping parts (1212) protrude towards the direction away from each other.

4. A dust sealed bearing according to claim 3, wherein: the shape of the clamping portion (1212) is a cone, and the cross sectional area of the clamping portion (1212) is gradually reduced along the direction far away from the inner ring (12).

5. The dust sealed bearing of claim 2, wherein: and a sealing gasket (112) is fixedly arranged in the groove (111) on the outer ring (11).

6. The dust sealed bearing of claim 2, wherein: the outer side of the sealing cover (2) is provided with gaps (22), and the gaps (22) are uniformly distributed along the circumferential direction of the sealing cover (2).

7. The dust sealed bearing of claim 1, wherein: the sealing cover (2) is integrally provided with a reinforcing rib (23).

8. The dust sealed bearing of claim 1, wherein: chamfers are arranged on the outer ring (11) and the inner ring (12).

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