CN213451323U - Dustproof bearing - Google Patents

Abstract

The utility model discloses a dustproof bearing relates to the bearing, aims at solving and can not keep off too tiny dust or foreign matter outside, and then influences the life's of bearing problem, and its technical scheme main points are: including inner circle and outer lane, the cover is equipped with interior dust keeper and the outer dust keeper of mutual joint on the periphery wall of inner circle, interior dust keeper is located between inner circle and the outer lane, form the cavity that is used for depositing the foreign matter between outer dust keeper and the interior dust keeper, there is a space one outer along parallel with the lateral wall of outer lane and outer dust keeper, space one is linked together with the cavity, the caulking groove has been seted up along the one side of orientation outer lane to outer dust keeper outer, fixedly connected with sealing washer in the caulking groove, the one side annular array that outer dust keeper is close to interior dust keeper distributes and has the abaculus that is the character cut in bas, one side fixedly connected with fillet that interior dust keeper is close to outer dust keeper. The utility model discloses a set up space one and accomodate the cavity with the foreign matter, and then prevent that the foreign matter from getting into in the bearing, improve the leakproofness and the life of bearing.

Description

Dustproof bearing

Technical Field

The utility model relates to a bearing, more specifically say, it relates to a dust proof bearing.

Background

The bearing is an important part in the present generation mechanical equipment, its main function is to support the mechanical rotator, reduce the coefficient of friction in its motion process, and guarantee its gyration precision, current bearing includes the outer lane, inner circle and a plurality of ball, set up between outer lane and inner circle through the even interval of holder annular between the ball, the ring channel has all been seted up to the one side of outer lane and inner circle orientation each other, the ball imbeds in the twice ring channel, the outer lane of bearing can be dismantled and be connected with the dust cover, the turn-up has been seted up on the outer edge of dust cover, the recess that is used for holding the turn-up embedding is seted up to the outer.

In order to reduce the friction force, a proper gap is formed between the inner edge of the dust cover and the outer diameter of the inner ring, so that the dust or foreign matters which are too fine cannot be blocked outside, and the service life of the bearing is further influenced.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a dustproof bearing prevents that the foreign matter from getting into the inside of bearing.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a dustproof bearing, includes inner circle and outer lane, the cover is equipped with interior dustproof of mutual joint and outer dustproof on the periphery wall of inner circle, interior dustproof is located between inner circle and the outer lane, form the cavity that is used for depositing the foreign matter between outer dustproof and the interior dustproof, outer dustproof outer along parallel and the existence space one with the lateral wall of outer lane, space one is linked together with the cavity, the caulking groove has been seted up along the one side towards the outer lane to outer dustproof, fixedly connected with sealing washer in the caulking groove, outer dustproof is close to one side ring array distribution of interior dustproof and has the abaculus that is the character cut in bas, the fillet in one side fixedly connected with that interior dustproof is close to outer dustproof is the annular and is used for embedding the concave part of abaculus.

Through adopting above-mentioned technical scheme, when the bearing uses or places, through setting up outer dust keeper, prevent that the foreign matter from getting into from the gap between outer dust keeper and the inner circle, when the foreign matter of undersize gets into the bearing in from space one, through setting up the sealing washer, further prevent partial foreign matter entering, in addition partial foreign matter gets into the cavity along space one, and then blocks the foreign matter, prevents the inside of foreign matter entering bearing, and then improves the life of bearing.

The utility model discloses further set up to: the inner peripheral wall of the outer ring is provided with two sliding grooves arranged along the circumferential direction of the outer ring, the sliding grooves are used for accommodating the outer edges of the inner dustproof pieces, and a second gap exists between the outer edges of the inner dustproof pieces and the sliding grooves.

Through adopting above-mentioned technical scheme, through setting up the spout for when relative circumferential motion takes place for outer lane and inner circle, prevent that interior dust keeper from interfering the outer lane, through setting up space two, prevent that the foreign matter in the cavity from getting into inside the bearing, and then improved the life of bearing.

The utility model discloses further set up to: the outer periphery wall of the inner ring is provided with an annular groove, and the outer dustproof piece is provided with a bulge embedded in the annular groove.

Through adopting above-mentioned technical scheme, because protruding embedding ring channel, and then the displacement of restriction outer dust cover, and can prevent that the foreign matter from getting into in the bearing through the gap between outer dust cover and the inner circle.

The utility model discloses further set up to: the longitudinal sections of the annular groove and the bulge are arc-shaped.

Through adopting above-mentioned technical scheme, be the arc through setting up the arch, and then reduce the area of contact between arch and the inner circle, reduce the frictional force of outer dustproof when inner circle slides, the installation of the outer dustproof of being convenient for.

The utility model discloses further set up to: the outer dustproof piece and the inner dustproof piece are provided with connecting parts attached to the outer peripheral wall of the inner ring, the cross section of each connecting part is trapezoidal, and the large end of each connecting part is attached to the outer peripheral wall of the inner ring.

By adopting the technical scheme, because the large end of the connecting part is attached to the inner ring, when the outer dustproof piece and the inner dustproof piece are subjected to external force, the large end of the connecting part can bear a part of force, and the connecting strength of the outer dustproof piece and the inner ring is further improved.

The utility model discloses further set up to: an inclined surface is arranged on one side, far away from the outer ring, of the outer edge of the outer dustproof piece.

Through adopting above-mentioned technical scheme, through setting up the inclined plane for foreign matter on the outer dustproof piece is along the inclined plane landing, and then reduces piling up of foreign matter on the outer dustproof piece.

To sum up, the utility model discloses following beneficial effect has: when the bearing uses or places, through setting up outer dust keeper, prevent that the foreign matter from getting into from the gap between outer dust keeper and the inner circle, when the foreign matter of undersize gets into the bearing in from space one, through setting up the sealing washer, further prevent partial foreign matter entering, in addition partial foreign matter gets into the cavity along space one, and then blocks the foreign matter, prevents that the foreign matter from getting into the russian inside of bearing, and then improves the life of bearing.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

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

In the figure: 1. an inner ring; 2. an outer ring; 3. an inner dust-proof member; 4. an outer dust-proof member; 5. a cavity; 6. a first gap; 7. a seal ring; 8. an insert block; 9. a fillet; 10. a chute; 11. a second gap; 12. an annular groove; 13. a protrusion; 14. a connecting portion; 15. an inclined surface.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Example (b):

as shown in fig. 1, a dust-proof bearing comprises an inner ring 1 and an outer ring 2, as shown in fig. 2, an inner dust-proof piece 3 and an outer dust-proof piece 4 which are clamped with each other are sleeved on the peripheral wall of the inner ring 1, the inner dust-proof piece 3 and the outer dust-proof piece 4 are both annular, the inner dust-proof piece 3 is positioned between the inner ring 1 and the outer ring 2, as shown in fig. 3, a cavity 5 for storing foreign matters is formed between the outer dust-proof piece 4 and the inner dust-proof piece 3, an annular groove 12 is formed on the peripheral wall of the inner ring 1, the longitudinal section of the annular groove 12 is arc-shaped, bulges 13 for embedding the annular groove 12 are adhered on the outer dust-proof piece 4 and the inner dust-proof piece 3, the longitudinal section of the bulges 13 is arc-shaped, a connecting part 14 adhered on the peripheral wall of the inner ring 1 is integrally formed on the outer dust-proof piece 4 and the inner dust-proof piece 3, the connecting part 14 is arranged along, the internal perisporium of outer lane 2 is seted up twice and is followed the spout 10 that its circumferencial direction set up, and spout 10 is used for holding interior dust proof 3 outer along and spout 10 between have space two 11, and the outer cyclic annular edge cutting that keeps away from outer lane 2 of following of outer dust proof 4 forms inclined plane 15 for the foreign matter on the outer dust proof 4 slides along inclined plane 15, and then reduces piling up of foreign matter on the outer dust proof 4.

As shown in fig. 3, the outer edge of the outer dust-proof part 4 is parallel to the side wall of the outer ring 2 and is formed with a first gap 6, the first gap 6 is communicated with the cavity 5, the outer edge of the outer dust-proof part 4 is provided with an embedded groove towards one side of the outer ring 2, a sealing ring 7 is bonded in the embedded groove, the thickness of the sealing ring 7 is larger than the depth of the embedded groove and is smaller than the distance from the bottom surface of the embedded groove to the outer ring 2, the embedded blocks 8 in the shape of a Chinese character 'ao' are distributed on one side of the outer dust-proof part 4 close to the inner dust-proof part 3 in an annular array manner, the concave parts of the embedded blocks 8 are arranged towards the inner dust-proof part 3, and one side of the inner dust-proof part.

When the bearing is installed, the inner dustproof piece 3 and the outer dustproof piece 4 are sleeved on the peripheral wall of the inner ring 1, then the inner dustproof piece 3 and the outer dustproof piece 4 slide towards the annular groove 12, the contact area between the inner dustproof piece 3 and the inner ring 1 as well as between the outer dustproof piece 4 and the inner ring 1 is reduced due to the arc-shaped bulge 13, and further the friction force between the inner dustproof piece 3 and the inner ring 1 as well as between the outer dustproof piece 4 and the inner ring 1 is reduced, so that the installation of the inner dustproof piece 3 and the outer dustproof piece 4 is convenient, the first gap 6 is communicated with the cavity 5 due to the annular array distribution between the embedded blocks 8, and the bearing is used for storing small-grained foreign matters in the,

when the bearing is static or rotates, foreign matters on the outer dustproof piece 4 slide down along the inclined surface 15, so that the accumulation of the foreign matters on the outer dustproof piece 4 of the bearing is reduced, the foreign matters entering the bearing are reduced, small-particle foreign matters existing in the air enter the outer dustproof piece 4 and the inner dustproof piece 3 along the first gap 6, the distance between the sealing ring 7 and the side wall of the outer ring 2 is smaller than the width of the first gap 6, most of the foreign matters are limited by the sealing ring 7, the foreign matters penetrating through the sealing ring 7 and the side wall of the outer ring 2 are partially accumulated on the outer ring 2 of the insert block 8, so that the rotation of the bearing is not influenced, part of the foreign matters penetrate through the first gap 6 and enter the cavity 5, the foreign matters are conveniently blocked, the foreign matters are prevented from entering the bearing, the service life of the bearing is prolonged, and the part of the foreign matters positioned in the cavity 5, further prolonging the service life of the bearing.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (6)

1. A kind of dust-proof bearing, characterized by: including inner circle (1) and outer lane (2), the cover is equipped with interior dust keeper (3) and outer dust keeper (4) of mutual joint on the periphery wall of inner circle (1), interior dust keeper (3) are located between inner circle (1) and outer lane (2), form cavity (5) that are used for depositing the foreign matter between outer dust keeper (4) and interior dust keeper (3), outer edge of outer dust keeper (4) is parallel and have space (6) with the lateral wall of outer lane (2), space (6) are linked together with cavity (5), the caulking groove has been seted up along the one side towards outer lane (2) to outer edge of outer dust keeper (4), fixedly connected with sealing washer (7) in the caulking groove, outer dust keeper (4) are close to the one side ring array distribution of interior dust keeper (3) and have abaculus (8) that are the character cut in bas shape, interior dust keeper (3) are close to the one side fixedly connected with of outer dust keeper (4) and are the annular and are used for the inlay in the concave part of abaculus (8) A strip (9).

2. A dust bearing according to claim 1, wherein: the utility model discloses a dustproof structure, including outer lane (2), spout (10) that the internal perisporium of outer lane (2) seted up twice and set up along its circumferencial direction, spout (10) are used for holding the outer edge of interior dustproof (3), there is space two (11) between the outer edge of interior dustproof (3) and spout (10).

3. A dust bearing according to claim 1, wherein: the outer periphery wall of the inner ring (1) is provided with an annular groove (12), and the outer dustproof piece (4) is provided with a bulge (13) embedded in the annular groove (12).

4. A dust bearing according to claim 3, wherein: the longitudinal sections of the annular groove (12) and the bulge (13) are arc-shaped.

5. The dust bearing of claim 4, wherein: be equipped with on outer dustproof (4) and interior dustproof (3) and paste connecting portion (14) in inner circle (1) periphery wall, the cross-section of connecting portion (14) is trapezoidal, the main aspects of connecting portion (14) are pasted in the periphery wall of inner circle (1).

6. A dust bearing according to claim 1, wherein: an inclined surface (15) is arranged on one side, far away from the outer ring (2), of the outer edge of the outer dustproof piece (4).

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