CN207864414U - A kind of rolling bearing - Google Patents

Abstract

A kind of rolling bearing, technical field of bearings, including the first inner ring, the second inner ring, ball, retainer and outer ring；There are two first inner ring, the second inner ring, ball, retainer are equal, and axially and symmetrically it is set to outer ring both sides；First inner ring, the concentric setting of the second inner ring and outer ring；Second inner ring is sheathed on outside the first inner ring, and the first inner ring, the second inner ring gap setting form interior shoe cream room；The outer ring is sheathed on outside the second inner ring, and is provided with ball and retainer between outer ring and the second inner ring；The ball is embedded at retainer；The outer wall of second inner ring and the inner wall of outer ring are both provided with raceway.The interior shoe cream room of this bearing stores lubricating oil.When this bearing is by radial active force, hydraulic energy flexible support reduces the abrasion of bearing to mitigate radial accidental loads, extends the service life of bearing.

Description

A kind of rolling bearing

Technical field

The utility model belongs to technical field of bearings, and in particular to is a kind of rolling 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 is assemblied on axis, and bearing is concentric with axis, and is rotated around concentric shafts, and during use, bearing will produce centainly Frictional force, bearing is caused to wear, influences the service life of bearing.In order to reduce the abrasion of bearing, extend the use of bearing Service life, traditional way are lubricating grease to be smeared on bearing, lubricating grease is pasta oil substances, right in assembling process Bearing plays certain lubricating action, but the heat dissipation effect of lubricating grease is undesirable, and with the use of equipment, lubricating grease can be continuous Ground volatilization is dried, and needs to smear lubricating grease again.

Therefore, it is necessary to provide a kind of bearing, to overcome the above shortcomings.

Utility model content

The purpose of the utility model is to overcome defect mentioned above and deficiencies, and provide a kind of rolling bearing.

A kind of rolling bearing, including the first inner ring, the second inner ring, ball, retainer and outer ring；First inner ring, There are two two inner rings, ball, retainer are equal, and axially and symmetrically it is set to outer ring both sides；First inner ring, the second inner ring and outer Enclose concentric setting；Second inner ring is sheathed on outside the first inner ring, and in the first inner ring, the second inner ring gap setting formed Shoe cream room；The outer ring is sheathed on outside the second inner ring, and is provided with ball and retainer between outer ring and the second inner ring；It is described Ball is embedded at retainer；The outer wall of second inner ring and the inner wall of outer ring are both provided with raceway.

First inner ring both sides are both provided with the cricoid first lug of diameter convex, and first lug cross section is L-shape, 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.

First inner ring offers the first 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.

Kind rolling bearing further includes in circular spacer ferrule；The inner wall of the holding rod free end is provided with locating 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 interior shoe cream room of this bearing stores lubricating oil, plays the role of flexible carrying.When this bearing is made by radial direction When firmly, hydraulic energy flexible support reduces the abrasion of bearing to mitigate radial accidental loads, extends the service life of bearing.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is to maintain the structural schematic diagram of frame；

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, outer ring 7.

Specific implementation mode

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

A kind of rolling bearing, including the first inner ring 1, the second inner ring 3, ball 4, retainer 5 and outer ring 7；In described first There are two the 1, second inner ring 3 of circle, ball 4, retainer 5 are equal, and axially and symmetrically it is set to 7 both sides of outer ring；First inner ring 1, The 7 concentric setting of second inner ring 3 and outer ring；Second inner ring 3 is sheathed on outside the first inner ring 1, and the first inner ring 1, second 3 gap setting of inner ring forms interior shoe cream room 2；The outer ring 7 is sheathed on outside the second inner ring 3, and outer ring 7 and the second inner ring 3 it Between be provided with ball 4 and retainer 5；The ball 4 is embedded at retainer 5；The outer wall of second inner ring 3 and outer ring 7 it is interior Wall is both provided with raceway 6.

Interior shoe cream room 2 stores lubricating oil, plays the role of flexible carrying.When this bearing is by radial active force, Hydraulic energy flexible support reduces the abrasion of bearing to mitigate radial accidental loads, extends the service life of bearing.

First inner ring, 1 both sides are both provided with the cricoid first lug 1a of diameter convex, the cross sections first lug 1a 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.

First lug 1a plays the role of connecting the first inner ring 1 and the second inner ring 3.Second inner ring 3 can be relative in first Circle 1 does radial local displacement, plays the role of buffering and fine tuning.

First inner ring 1 offers the first oil filler point 1b.Hydraulic oil enters the first oiling by the first oil filler point 1b Hole 1b.

The retainer 5 includes retaining ring 5a, the holding rod 5b being wholely set and the spacer ferrule 5d in annular shape.

The retaining ring 5a is in hollow ring-type；The equidistant axial arrangings of holding rod 5b are in the sides retaining ring 5a, phase The gap of adjacent holding rod 5b is less than the diameter of ball 4；Fluted 5e is arranged in the front and rear sides the holding rod 5b；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 larger radial holding power 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 It states spacer ferrule 5d internal diameters and is 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 for binding round 5d, on the one hand prevents ball 4 from unexpectedly jumping out, and 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 the both ends holding rod 5b, this retainer can save material and cost, reduce The weight of bearing, while being conducive to the assembly of ball 4 and retainer 5.

The utility model is illustrated according to embodiment, and under the premise of not departing from present principles, 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 (7)

1. a kind of rolling bearing, which is characterized in that including the first inner ring（1）, the second inner ring（3）, ball（4）, retainer（5）With Outer ring（7）；First inner ring（1）, the second inner ring（3）, ball（4）, retainer（5）There are two, and axially and symmetrically setting In outer ring（7）Both sides；First inner ring（1）, the second inner ring（3）The outer ring and（7）Concentric setting；Second inner ring（3） It is sheathed on the first inner ring（1）Outside, and the first inner ring（1）, the second inner ring（3）Gap setting forms interior shoe cream room（2）；It is described outer Circle（7）It is sheathed on the second inner ring（3）Outside, and outer ring（7）With the second inner ring（3）Between be provided with ball（4）And retainer （5）；The ball（4）It is embedded at retainer（5）；Second inner ring（3）Outer wall and outer ring（7）Inner wall be both provided with rolling Road（6）.

2. a kind of rolling bearing as described in claim 1, which is characterized in that first inner ring（1）Both sides are both provided with diameter The cricoid first lug of convex（1a）, first lug（1a）Cross section is L-shape, second inner ring（3）Both sides are arranged 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）.

3. a kind of rolling bearing as described in claim 1, which is characterized in that first inner ring（1）Offer the first oiling Hole（1b）.

4. a kind of rolling bearing as described in claim 1, which is characterized in that the retainer（5）Including the guarantor being wholely set Held in ring（5a）And holding rod（5b）；The retaining ring（5a）In hollow ring-type；The holding rod（5b）Equidistant axial arranging In retaining ring（5a）Side, adjacent holding rod（5b）Gap be less than ball（4）Diameter；The holding rod（5b）Front and rear sides It is arranged fluted（5e）；The groove（5e）The radius of the circular arc at place is equal or slightly larger than ball（4）Radius.

5. a kind of rolling bearing as claimed in claim 4, which is characterized in that the holding rod（5b）Inboard width is less than outer Side width；The holding rod（5b）Cross section be in inverted isosceles trapezoid.

6. a kind of rolling bearing as claimed in claim 4, which is characterized in that further include in circular spacer ferrule（5d）；Institute State 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）；It is described Spacer ferrule（5d）Internal diameter is not less than holding rod（5b）Internal diameter.

7. a kind of rolling bearing as claimed in claim 6, which is characterized in that the spacer ferrule（5d）It is rolled up by the iron plate of strip It is enclosed around two.