CN208089780U - Bearing with good anti-dust performance - Google Patents

Abstract

The utility model proposes a kind of bearings with good anti-dust performance,Including inner ring and outer ring,Rolling element is equipped between the inner ring and outer ring,The outside of the rolling element is equipped with sealing device,The sealing device includes baffle ring and sealing ring,The sealing ring includes rubber bodies,Skeleton and sealing lip,The rubber bodies madial wall is equipped with limiting slot,The skeleton is fixed in limiting slot,The outer wall of the rubber bodies is inclined surface,The inclined surface equidistantly distributes fluted,The groove notch height is higher than slot bottom height,The sealing lip is arranged in rubber bodies bottom surface,The sealing lip ecto-entad includes support lip,Middle lip and epipharynx,The support lip bottom surface has equidistantly distributed pearl slot,Ball is equipped in the pearl slot,The ball is in contact with inner ring,The utility model sealing performance is more preferably,It can be very good dust being blocked in outer,Avoid enter into bearing cavity,Greatly prolong bearing service life.

Description

Bearing with good anti-dust performance

Technical field

The utility model is related to bearing, more particularly to a kind of bearing with good anti-dust performance.

Background technology

Bearing is that component that is fixed and reducing load friction coefficient is played in mechanical transmission course.It may also be said that when other Parts when generating relative motion each other on axis, for reducing friction coefficient and the holding shaft center in power transmission process Fixed parts.Bearing currently on the market is generally double-layer seal, and dust is easy to enter from baffle ring and outer ring gap, and overflows Product is easy to cause bending or wear damage to sealing ring between baffle ring and sealing ring so that and dust enters bearing cavity, Bearing damage is caused, bearing service life is substantially reduced.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a kind of bearing with good anti-dust performance, it is close Sealing property more preferably, can be very good dust being blocked in outside, avoid enter into bearing cavity, greatly prolong bearing service life.

It is to reach above-mentioned purpose technical solution provided by the utility model：A kind of axis with good anti-dust performance It holds, including inner ring and outer ring, rolling element is equipped between the inner ring and outer ring, the outside of the rolling element is equipped with sealing device, The sealing device includes baffle ring and sealing ring, and the baffle ring is located on the outside of sealing ring, the baffle ring bottom and inner ring stationary phase Even, close to outer ring inner wall at the top of the baffle ring, the sealing ring includes rubber bodies, skeleton and sealing lip, and the outer ring inner wall is set There are mounting groove, the rubber bodies top card to be mounted in mounting groove, the rubber bodies madial wall is equipped with limiting slot, and the skeleton is fixed In limiting slot, the outer wall of the rubber bodies is inclined surface, and the inclined surface equidistantly distributes fluted, the groove notch height Degree is higher than slot bottom height, sealing lip setting in rubber bodies bottom surface, the sealing lip ecto-entad include support lip, middle lip and Epipharynx, the support lip bottom surface have equidistantly distributed pearl slot, and the pearl channel opening is equipped with ball to in-flanges in the pearl slot, The ball is in contact with inner ring.

Further, the middle lip and support lip, be equipped with hollow layer between middle lip and epipharynx, and the middle lip with it is interior Lip bottom surface offsets with interior ring outer wall.

Further, the both ends of the inner ring stretch out in outer ring, top wire hole are equipped in the section of stretching out of inner ring, in top wire hole Equipped with jackscrew.

Further, the rolling element is spherical shape, and the rolling element is cased with retainer, and the retainer is by rolling element and rolls Kinetoplast is isolated.

Compared with prior art, it has the advantages that：

The utility model bearing after a period of use, have some dust can be across baffle ring and outer ring between Gap enters on the outside of sealing ring, and the rubber bodies outer wall is designed as inclined surface and inclined surface distribution is fluted so that the big portion of dust Branch is attached on rubber bodies outer wall, or enters in groove, greatly reduces dust and enters inner ring between baffle ring and sealing ring It on outer wall, avoids entering bearing cavity across sealing lip, improves the service life of bearing well, while the support lip coordinates Skeleton can be very good support sealing ring, will not because of dust attachment and flexural deformation, use more stablize.

Description of the drawings

FIG. 1 is a schematic structural view of the utility model.

Fig. 2 is the utility model ring structure schematic diagram.

The utility model is described in further detail below in conjunction with the accompanying drawings.

Specific implementation mode

As depicted in figs. 1 and 2, a kind of bearing with good anti-dust performance, including inner ring 1 and outer ring 2, the inner ring 1 Rolling element 3 is equipped between outer ring 2, the rolling element 3 is spherical shape, and the rolling element 3 is cased with retainer 31, the retainer 31 Rolling element 3 is isolated with rolling element 3, the material of retainer 31 has some strength, and thermal conductivity is good, friction factor is small, wear-resisting Property is good, impact flexibility is strong, density is smaller and linear expansion coefficient is close with rolling element 3；The both ends of the inner ring 1 stretch out in outer ring 2, It is equipped with top wire hole 11 in the section of stretching out of inner ring 1, jackscrew 12 is housed in top wire hole 11, in inner ring 1 after installation axle, jackscrew 12 pushes up On axis, fixed function can be played.

The outside of the rolling element 3 is equipped with sealing device 4, and the sealing device 4 includes baffle ring 41 and sealing ring 5, described Baffle ring 41 is located at 5 outside of sealing ring, and 41 bottom of the baffle ring is fixedly linked with inner ring 1, and 41 top of the baffle ring is in outer ring 2 Wall, the sealing ring 5 include rubber bodies 51, skeleton 52 and sealing lip 53, and 2 inner wall of the outer ring is equipped with mounting groove 21, the rubber 51 top card of colloid is mounted in mounting groove 21, and 51 madial wall of the rubber bodies is equipped with limiting slot 54, and the skeleton 52 is fixed on limit In the slot 54 of position, the outer wall of the rubber bodies 51 is inclined surface 55, and the inclined surface 55 equidistantly distributes fluted 56, the groove 56 notch height are higher than slot bottom height, bearing after a period of use, baffle ring 41 and outer ring 2 can be passed through by having some dust Between gap enter the outside of sealing ring 5,51 outer wall of the rubber bodies is designed as inclined surface 55 and inclined surface 55 be distributed with it is recessed Slot 56 so that dust can be largely attached on 51 outer wall of rubber bodies, or be entered in groove 56, greatly reduced dust and entered gear On 1 outer wall of inner ring between circle 41 and sealing ring 5, avoids entering bearing cavity across sealing lip 53, improve bearing well Service life.

For the setting of the sealing lip 53 in 51 bottom surface of rubber bodies, 53 ecto-entad of the sealing lip includes support lip 531, middle lip 532 and epipharynx 533,531 bottom surface of support lip equidistantly distributed pearl slot 534, the pearl slot 534 is open to in-flanges, institute State and be equipped with ball 535 in pearl slot 534, the ball 535 is in contact with inner ring 1, the design of the ball 535 can reduce with it is interior The friction between 1 outer wall is enclosed, hollow layer 536 is equipped between the middle lip 532 and support lip 531, middle lip 532 and epipharynx 533, And the middle lip 532 offsets with 1 outer wall of inner ring with 533 bottom surface of epipharynx, and the support lip 531 coordinates skeleton 52 can be fine Support sealing ring 5, will not because of dust attachment and flexural deformation, use more stablize.

Finally it should be noted that：Above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although The utility model is described in detail with reference to preferred embodiment, it will be understood by those of ordinary skill in the art that, it can be right The technical solution of the utility model is modified or replaced equivalently, without departing from the spirit and model of technical solutions of the utility model It encloses, should all cover in the right of the utility model.

Claims (4)

1. a kind of bearing with good anti-dust performance, including inner ring and outer ring, rolling element is equipped between the inner ring and outer ring, It is characterized in that：The outside of the rolling element is equipped with sealing device, and the sealing device includes baffle ring and sealing ring, the baffle ring On the outside of sealing ring, the baffle ring bottom is fixedly linked with inner ring, close to outer ring inner wall, the sealing ring at the top of the baffle ring Including rubber bodies, skeleton and sealing lip, the outer ring inner wall is equipped with mounting groove, and the rubber bodies top card is mounted in mounting groove, The rubber bodies madial wall is equipped with limiting slot, and the skeleton is fixed in limiting slot, and the outer wall of the rubber bodies is inclined surface, institute It states inclined surface and equidistantly distributes fluted, the groove notch height is higher than slot bottom height, and the sealing lip is arranged in rubber bodies Bottom surface, the sealing lip ecto-entad include that support lip, middle lip and epipharynx, the support lip bottom surface have equidistantly distributed pearl slot, The pearl channel opening is equipped with ball to in-flanges in the pearl slot, the ball is in contact with inner ring.

2. the bearing according to claim 1 with good anti-dust performance, it is characterised in that：The middle lip with support lip, Hollow layer is equipped between middle lip and epipharynx, and the middle lip offsets with interior ring outer wall with epipharynx bottom surface.

3. the bearing according to claim 1 with good anti-dust performance, it is characterised in that：The both ends of the inner ring are stretched out In outer ring, it is equipped with top wire hole in the section of stretching out of inner ring, jackscrew is housed in top wire hole.

4. the bearing according to claim 1 with good anti-dust performance, it is characterised in that：The rolling element is spherical shape, The rolling element is cased with retainer, and the retainer is isolated by rolling element with rolling element.