CN207554589U - A kind of automatically cleaning bearing - Google Patents

Abstract

A kind of automatically cleaning bearing, technical field of bearings, including the first inner ring, the second inner ring, ball, retainer, the first outer ring and the second outer ring；First inner ring, the second inner ring, the concentric setting in the first outer ring and the second outer ring；The both sides of the second outer ring outer wall offer V-groove；The V-groove of homonymy is equidistantly arranged, and the opening of V-groove is outwardly.This bearing sets V-groove in outer wall, improves the friction coefficient of gear outer wall, avoids skidding, ensures the stable operation of workpiece；Also, when scurrying into granulometric impurity between gear and belt, granulometric impurity is easily accumulated in V-groove, and in the case where the band of belt draws, and by being arranged outside V-groove, plays self-cleaning effect.The setting of V-groove so that bearing is rotated forward or inverted, can be by the deficiency arranged, change unilateral fluting outer under the action of inertia of the impurity in V-groove.

Description

A kind of automatically cleaning bearing

Technical field

The utility model belongs to technical field of bearings, and in particular to is a kind of automatically cleaning bearing.

Background technology

Ball bearing is one kind of rolling bearing, and spherical alloy steel ball is mounted on to the centre of interior steel ring and outer rim, with The mode of rolling reduces the frictional force in power transmission process, improves the transmission efficiency of machine power.Ball bearing cannot be held It is relatively conventional in light indusqtry machinery field by larger heavy load.

Bearing operates in various environment, the adverse circumstances of particularly more windy and dusty operating mode, and foreign matter is easily advanced into outer Between circle and belt pulley or inner ring and shaft, bearing is caused to run unstable.

Therefore, it is necessary to a kind of bearing is provided, to overcome above-mentioned deficiency.

Utility model content

The purpose of the utility model is to overcome it is mentioned above the defects of and deficiency, and provide a kind of automatically cleaning bearing.

The utility model realizes that the technical solution that its purpose uses is as follows.

A kind of automatically cleaning bearing, including the first inner ring, the second inner ring, ball, retainer, the first outer ring and the second outer ring； First inner ring, the second inner ring, the concentric setting in the first outer ring and the second outer ring；It opens the both sides of the second outer ring outer wall Equipped with V-groove；The V-groove of homonymy is equidistantly arranged, and the opening of V-groove is outwardly.

Second inner ring is sheathed on outside the first inner ring, and the first inner ring, the second inner ring gap setting form interior oil storage Chamber；First outer ring is sheathed on outside the second inner ring, and is provided with ball and retainer between the first outer ring and the second inner ring； The ball is embedded at retainer；Second outer ring is sheathed on outside the first outer ring, and the first outer ring and the second outer ring gap Setting forms outer shoe cream room；The outer wall of second inner ring and the inner wall of the first outer ring are both provided with raceway.

The first inner ring both sides are both provided with the cricoid first lug of diameter convex, and first lug cross section is L-shape, The second inner ring both sides are arranged in first lug；Corral sets out interior shoe cream room in first inner ring, first lug and second； Second outer ring both sides are both provided with cricoid second lug of radial direction convex, and the second lug cross section is L-shape, and described first Outer ring both sides are arranged in the second lug；Second outer ring, the second lug and the first outer corral set out outer shoe cream room.

First inner ring offers the first oil filler point；Second outer ring offers the second oil filler point.

The retainer includes the retaining ring being wholely set and holding rod；The retaining ring is in hollow ring-type；The guarantor The equidistant axial arranging of bar is held in retaining ring side, the gap of adjacent holding rod is less than the diameter of ball；Before and after the holding rod Both sides setting is fluted；The radius of circular arc where the groove is equal or slightly larger than ball bearing radius.

The holding rod inboard width is less than outside width；The cross section of the holding rod is in inverted isosceles trapezoid.

A kind of automatically cleaning bearing is further included in circular spacer ferrule；The inner wall of the holding rod free end is provided with fixed Position slot；The spacer ferrule is embedded at locating slot；The spacer ferrule internal diameter is not less than holding rod internal diameter.

The spacer ferrule is enclosed by the iron plate winding two of strip.

The angle of the V-groove is 90 °；The inside apex angle of V-groove is provided with chamfering.

This bearing sets V-groove in outer wall, improves the friction coefficient of gear outer wall, avoids skidding, ensures the steady of workpiece Fixed operation；Also, when scurrying into granulometric impurity between gear and belt, granulometric impurity is easily accumulated in V-groove, and in skin Under the band of band draws, by being arranged outside V-groove, self-cleaning effect is played.The setting of V-groove so that bearing rotates forward or anti- Turn, it can be by the deficiency arranged, change unilateral fluting outer under the action of inertia of the impurity in V-groove.

Lubricating oil is stored in the interior shoe cream room and outer shoe cream room of this bearing, plays the role of flexible carrying.When this bearing By radial direction active force when, hydraulic energy flexible support so as to mitigate the accidental loads of radial direction, reduces the abrasion of bearing, extend The service life of bearing.

Description of the drawings

Fig. 1 is the structure diagram of the utility model；

Fig. 2 is to maintain the structure diagram of frame；

Fig. 3 is the outer wall local expansion figure of the second outer ring；

In figure：First inner ring 1, the first oil filler point 1b, interior shoe cream room 2, the second inner ring 3, ball 4, is kept first lug 1a Frame 5, retaining ring 5a, holding rod 5b, locating slot 5c, spacer ferrule 5d, groove 5e, raceway 6, the first outer ring 7, outer shoe cream room 8, second Outer ring 9, the second lug 9a, the second oil filler point 9b, V-groove 9c.

Specific embodiment

Below in conjunction with the accompanying drawings, this patent is described in further detail.

A kind of automatically cleaning bearing, including the first inner ring 1, the second inner ring 3, ball 4, retainer 5, the first outer ring 7 and second Outer ring 9；First inner ring 1, the 9 concentric setting of the second inner ring 3, the first outer ring 7 and the second outer ring；3 sets of second inner ring Outside the first inner ring 1, and the first inner ring 1,3 gap setting of the second inner ring form interior shoe cream room 2；7 sets of first outer ring Outside the second inner ring 3, and ball 4 and retainer 5 are provided between the first outer ring 7 and the second inner ring 3；The ball 4 is embedding Set on retainer 5；Second outer ring 9 is sheathed on outside the first outer ring 7, and 9 gap setting shape of the first outer ring 7 and the second outer ring Into outer shoe cream room 8；The outer wall of second inner ring 3 and the inner wall of the first outer ring 7 are both provided with raceway 6.

The both sides of second outer ring, 9 outer wall offer V-groove 9c；The V-groove 9c of homonymy equidistantly arranges, and V-type The opening of slot 9c is outwardly.Preferably, the angle of the V-groove 9c is 90 °；The inside apex angle of V-groove 9c is provided with chamfering.

This bearing sets V-groove in outer wall, improves the friction coefficient of gear outer wall, avoids skidding, ensures the steady of workpiece Fixed operation；Also, when scurrying into granulometric impurity between gear and belt, granulometric impurity is easily accumulated in V-groove, and in skin Under the band of band draws, by being arranged outside V-groove, self-cleaning effect is played.The setting of V-groove 9c so that bearing rotate forward or Reversion, can be by the deficiency arranged, change unilateral fluting outer under the action of inertia of the impurity in V-groove.

Lubricating oil is stored in interior shoe cream room 2 and outer shoe cream room 8, plays the role of flexible carrying.When this bearing is by diameter To active force when, hydraulic energy flexible support so as to mitigate the accidental loads of radial direction, reduces the abrasion of bearing, extends bearing Service life.

First inner ring, 1 both sides are both provided with the cricoid first lug 1a of diameter convex, first lug 1a cross sections L-shape, 3 both sides of the second inner ring are arranged in first lug 1a；First inner ring 1, first lug 1a and the second inner ring 3 enclose Set out interior shoe cream room 2；Second outer ring, 9 both sides are both provided with the cricoid second lug 9a, the second lug 9a of radial direction convex Cross section is L-shape, and 7 both sides of the first outer ring are arranged in the second lug 9a；Second outer ring 9, the second lug 9a and first Outer ring 7, which is enclosed, sets out outer shoe cream room 8.

First lug 1a and the second lug 9a each serves as the first inner ring 1 of connection and the second inner ring 3, the first outer ring 7 and the The effect of two outer rings 9.Second inner ring 3 can do the local displacement of radial direction relative to the first inner ring 1, play the work of buffering and fine tuning With.Similarly, the first outer ring 7 can do the local displacement of radial direction relative to the second outer ring 9, play the role of buffering and fine tuning.

First inner ring 1 offers the first oil filler point 1b；Second outer ring 9 offers the second oil filler point 9b.Hydraulic pressure Oil enters the first oil filler point 1b by the first oil filler point 1b, and outer shoe cream room 8 is entered by the second oil filler point 9b.

The retainer 5 includes the retaining ring 5a, the holding rod 5b that are wholely set and in circular spacer ferrule 5d.

The retaining ring 5a is in hollow ring-type；The equidistant axial arrangings of holding rod 5b are in retaining ring 5a sides, phase The gap of adjacent holding rod 5b is less than the diameter of ball 4；The holding rod 5b front and rear sides set fluted 5e；The groove 5e institutes The radius of circular arc be equal or slightly larger than 4 radius of ball.

The holding rod 5b inboard widths are less than outside width；The cross section of the holding rod 5b is in inverted isosceles ladder Shape provides the holding power of larger radial direction for retainer 5.

The inner wall of the holding rod 5b free ends is provided with locating slot 5c；The spacer ferrule 5d is embedded at locating slot 5c；Institute Spacer ferrule 5d internal diameters are stated not less than holding rod 5b internal diameters.The spacer ferrule 5d is enclosed by the iron plate winding two of strip.Positioning The setting of 5d is bound round, on the one hand prevents ball 4 from unexpectedly jumping out, on the other hand, plays the role of opening holding rod 5b, is holding rod The free end of 5b provides holding power, meanwhile, it ensure that the free end of all holding rod 5b is substantially on same circumference.

The structure of retaining ring 5a is respectively provided with relative to holding rod 5b both ends, this retainer can save material and cost, reduce The weight of bearing, while be conducive to the assembling of ball 4 and retainer 5.

The utility model is illustrated according to embodiment, and under the premise of present principles are not departed from, the present apparatus can also be made Go out several modifications and improvements.It should be pointed out that all technical solutions obtained using modes such as equivalent substitution or equivalent transformations, are fallen It is within the protection scope of the present utility model.

Claims (9)

1. a kind of automatically cleaning bearing, which is characterized in that including the first inner ring（1）, the second inner ring（3）, ball（4）, retainer （5）, the first outer ring（7）With the second outer ring（9）；First inner ring（1）, the second inner ring（3）, the first outer ring（7）Outside second Circle（9）Concentric setting；Second outer ring（9）The both sides of outer wall offer V-groove（9c）；The V-groove of homonymy（9c）Deng Spacing is arranged, and V-groove（9c）Opening outwardly.

A kind of 2. automatically cleaning bearing as described in claim 1, which is characterized in that second inner ring（3）It is sheathed in first Circle（1）Outside, and the first inner ring（1）, the second inner ring（3）Gap setting forms interior shoe cream room（2）；First outer ring（7）Set Set on the second inner ring（3）Outside, and the first outer ring（7）With the second inner ring（3）Between be provided with ball（4）And retainer（5）；Institute State ball（4）It is embedded at retainer（5）；Second outer ring（9）It is sheathed on the first outer ring（7）Outside, and the first outer ring（7）With Second outer ring（9）Gap setting forms outer shoe cream room（8）；Second inner ring（3）Outer wall and the first outer ring（7）Inner wall it is equal It is provided with raceway（6）.

A kind of 3. automatically cleaning bearing as claimed in claim 2, which is characterized in that first inner ring（1）Both sides are both provided with The cricoid first lug of diameter convex（1a）, first lug（1a）Cross section is L-shape, second inner ring（3）Both sides card is set In first lug（1a）；First inner ring（1）, first lug（1a）With the second inner ring（3）It encloses and sets out interior shoe cream room（2）；Institute State the second outer ring（9）Both sides are both provided with cricoid second lug of radial direction convex（9a）, the second lug（9a）Cross section is in L Shape, first outer ring（7）Both sides are arranged in the second lug（9a）；Second outer ring（9）, the second lug（9a）Outside first Circle（7）It encloses and sets out outer shoe cream room（8）.

A kind of 4. automatically cleaning bearing as claimed in claim 2, which is characterized in that first inner ring（1）Offer the first note Oilhole（1b）；Second outer ring（9）Offer the second oil filler point（9b）.

A kind of 5. automatically cleaning bearing as claimed in claim 2, which is characterized in that the retainer（5）Including what is be wholely set Retaining ring（5a）And holding rod（5b）；The retaining ring（5a）In hollow ring-type；The holding rod（5b）Equidistantly axial row It is distributed in retaining ring（5a）Side, adjacent holding rod（5b）Gap be less than ball（4）Diameter；The holding rod（5b）Front and rear two Side setting is fluted（5e）；The groove（5e）The radius of the circular arc at place is equal or slightly larger than ball（4）Radius.

A kind of 6. automatically cleaning bearing as claimed in claim 5, which is characterized in that the holding rod（5b）Inboard width is less than Outside width；The holding rod（5b）Cross section be in inverted isosceles trapezoid.

7. a kind of automatically cleaning bearing as claimed in claim 5, which is characterized in that further include in circular spacer ferrule（5d）； The holding rod（5b）The inner wall of free end is provided with locating slot（5c）；The spacer ferrule（5d）It is embedded at locating slot（5c）；Institute State spacer ferrule（5d）Internal diameter is not less than holding rod（5b）Internal diameter.

A kind of 8. automatically cleaning bearing as claimed in claim 7, which is characterized in that the spacer ferrule（5d）By the iron plate of strip Winding two encloses.

A kind of 9. automatically cleaning bearing as described in claim 1, which is characterized in that the V-groove（9c）Angle be 90 °；V-type Slot（9c）Inside apex angle be provided with chamfering.