CN206144993U - High -pressure oil pump is cylindrical roller bearing for gyro wheel - Google Patents
High -pressure oil pump is cylindrical roller bearing for gyro wheel Download PDFInfo
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- CN206144993U CN206144993U CN201621151044.5U CN201621151044U CN206144993U CN 206144993 U CN206144993 U CN 206144993U CN 201621151044 U CN201621151044 U CN 201621151044U CN 206144993 U CN206144993 U CN 206144993U
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- convexity
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- inner ring
- oil pump
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Abstract
The utility model discloses a high -pressure oil pump is cylindrical roller bearing for gyro wheel, including inside and outside circle, a plurality of roller and holder, the holder is integral holder have two frame -saws of a determining deviation, all have a plurality of setting a roof beam in place along the circumferencial direction between two frame -saw, adjacent two set a roof beam in place and two frame -saws between enclose to close and form the pocket window that is used for spacing roller, the frame -saw includes outer wall and inner wall, inside and outside wall all forms first convexity from the middle part is outside protruding, and wherein inner wall and the junction of setting a roof beam in place are provided with the strengthening rib, sets up certain convexity with the outside arch of inside and outside wall of frame -saw, and the stress concentration who reduces on the inside and outside wall of frame -saw makes loading even, simultaneously at the frame -saw inner wall with the stress concentration through setting up both junctions of strengthening rib reduction between setting a roof beam in place to improve the intensity of whole holder, improve fatigue life when using.
Description
Technical field
This utility model is related to cylinder roller bearing, more particularly to high-pressure oil pump roller cylinder roller bearing.
Background technology
At present existing automobile engine can all install high-pressure oil pump, and it is the fuel oil that electromotor puies forward eastern high pressure, high pressure
Oil pump is installed on state of the cylinder roller bearing on camshaft usually in running up by camshaft actuated, it is desirable to
It has higher fatigue life.Existing cylinder roller bearing is typically by outer ring, inner ring, retainer and multiple set of rollers
Into wherein used as the of paramount importance part of bearing, the length of its service life directly affects the service life of bearing to roller, and rolls
Son is carried out spacing by retainer, and retainer is susceptible to crack conditions after long-term work.
To improve the intensity and service life of retainer, in notification number described in the utility model of CN201218283Y
A kind of " inner pulling type cylindrical roller bearing cage ", using all-in-one-piece retainer, it is oblique that both sides edge is provided with symmetrical inclination
Face is improving the fatigue resistance of retainer.But retainer is, as roller is rotated, to rotate in bearing rotation process
During produce centrifugal force, the side wall for easily causing retainer produces the situation of stress concentration, and in the course of time retainer side wall is produced
Raw crackle, cracks can spread ultimately results in retainer fracture, and all-in-one-piece retainer easily occurs the situation of fracture.
Utility model content
The purpose of this utility model is to provide a kind of high-pressure oil pump roller cylinder roller bearing, by retainer side wall
Carry out Design of Crown so that side wall stand under load is uniform, and the concentration for reducing stress improves service life.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of high-pressure oil pump roller cylinder roller bearing, including inside and outside circle, multiple rollers and retainer, the guarantor
It is Integral retainer to hold frame, including has two framves frame at regular intervals, along the circumferential direction there is multiple framves between two frame frames
Beam, adjacent two set a roof beam in place encloses the pocket window to be formed for spacing roller between two frame frames, and the frame frame includes outer wall and inwall, institute
State inside and outside wall and form the first convexity from middle part outwardly convex, wherein inwall is provided with reinforcement with the junction set a roof beam in place.
By adopting above-mentioned technical proposal, the inside and outside wall outwardly convex of frame frame is arranged certain convexity to reduce frame frame
Inside and outside wall on stress concentration cause stand under load uniform, while being reduced by arranging reinforcement in frame inframe wall and between setting a roof beam in place
The stress concentration of both junctions, and the intensity of whole retainer is improved, fatigue life when raising is used.
Preferably, the middle part set a roof beam in place is toward axis hole indent, including symmetrically arranged two pieces of cant beams and connection two
The intermediate mass of cant beam, the both sides of the intermediate mass are provided with pad.
By adopting above-mentioned technical proposal, roof beam structure indent is arranged on can add man-hour to reduce the internal stress of roof beam structure, its secondary beam
Suffered load more disperses to avoid stress concentration on frame, improves service life；And the pad that intermediate mass both sides are arranged is in rolling
Outer wall can be contacted with pad when son is arranged in pocket window, play position-limiting action, while squeezing between roller and roof beam structure can also be reduced
Pressure is impaired, further improves the service life of retainer.
Preferably, the inner ring is provided with the first taper being connected with inner ring raceway away from one end of the second back-up ring
Section, is connected between first conical section and end face by the first arc section.
By adopting above-mentioned technical proposal, the side edge loading suffered by inner ring raceway is coordinated using the first conical section and is connected
The first arc section for connecing uniformly is shared, it is to avoid the situation of stress concentration occurs in inner ring raceway side, and the use that improve inner ring is tired
The labor life-span.
Preferably, the cascaded surface and the intersection of outer ring raceway and the end face of the second back-up ring and inner ring raceway
Intersection offers the oil groove of indent.
Can store lubricating oil and roller is lubricated by adopting above-mentioned technical proposal, oil groove, can reduce roller and outer ring,
Fretting wear between inner ring, improves the service life of three.
Preferably, the cell wall of the oil groove is connected by the second arc section of indent and with the second arc section two ends
Second conical section and triconic section are constituted, and second conical section is connected with inner ring raceway, triconic section and the second back-up ring
End face connection.
Reduce handing over by the setting of oil groove again by adopting the intersection of above-mentioned technical proposal, inner ring raceway and the second back-up ring
Stress concentration at boundary, and disperseed stress using the conical section of triconic Duan Yu tetra- so that the opposite side of inner ring raceway
The situation of stress concentration is equally avoided, the service life of inner ring is further improved.
Preferably, the inwall two ends of the inner ring axis hole are provided with three-arc section, the two ends of three-arc section
It is connected with the end face of inner ring and the inwall of inner ring by the 4th conical section respectively.
By adopting above-mentioned technical proposal, the 4th taper is combined using three-arc section between the inwall and both ends of the surface of inner ring
Section avoids the stress concentration of intersection, further improves the service life of inner ring.
Preferably, the both ends of the surface of the roller include for being located at the planar section at middle part and being connected with planar section
Four arc sections, the 4th arc section is connected by arc transition section with the bus of roller.
By adopting above-mentioned technical proposal, the both ends of the surface of roller using planar section and outer ring and inner ring the first back-up ring with
Second back-up ring is abutted, due to reducing contact area so that roller is higher with the installation accuracy for keeping intracavity；Planar section and the 4th
The combination of arc section causes the both ends of the surface of roller to be similarly formed certain convexity so that the axial load distribution suffered by roller is equal
It is even, further improve the service life of roller.
Preferably, locating slot is offered on the planar section, cell wall and the axis of the locating slot have 40 ° ~ 50 °
Angle.
By adopting above-mentioned technical proposal, locating slot is more defined when opening up first when roller is processed in both ends of the surface pair
Really, the axiality of raising roller, and the stress concentration for being obliquely installed reduction and planar section intersection of cell wall；Next locating slot
Open up so that the planar section area of end face is further reduced, further reduce with the contact area of the first back-up ring, the second back-up ring, more
The further installation accuracy for improving roller so that bearing working is more stable.
Preferably, first convexity is between 0.030 ~ 0.040mm, second convexity 0.001 ~
Between 0.004mm, the 3rd convexity is between 0.001 ~ 0.004mm, and the 4th convexity is described between 0.004 ~ 0.007mm
5th convexity is between 0.003 ~ 0.008mm.
The product of " edge effect " cannot be avoided when considering too small by adopting above-mentioned technical proposal, the span of convexity
Raw, part can be subject to larger stress when excessive, cause to damage, the different convexity of different part designs come reach it is optimal should
Power is distributed.
In sum, this utility model has the advantages that：
1st, the inside and outside wall of retainer arranges certain convexity and is connected with setting a roof beam in place with reference to reinforcement, answering whole retainer
Power is disperseed, and especially realizes that the stand under load of inside and outside wall is uniform, improves service life；
2nd, the value design of the corresponding convexity of outer ring, inner ring and roller, the installation knot with reference to roller in inside and outside circle
Close so that the load suffered by whole bearing more uniformly spreads, and improves service life；
3rd, while the oil groove arranged on inside and outside circle plays lubrication to roller, answering for inside and outside circle corner is reduced
Power is concentrated, and improves the service life of inside and outside circle.
Description of the drawings
Fig. 1 is the sectional view of high-pressure oil pump roller cylinder roller bearing；
Fig. 2 is the axonometric drawing of retainer；
Fig. 3 is the front view of retainer；
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is the sectional view of outer ring；
Fig. 6 is the A portions enlarged drawing of Fig. 5；
Fig. 7 is the schematic diagram of outer ring raceway；
Fig. 8 is the sectional view of inner ring；
Fig. 9 is the B portions enlarged drawing of Fig. 8；
Figure 10 is the C portions enlarged drawing of Fig. 8；
Figure 11 is the D portions enlarged drawing of Fig. 8；
Figure 12 is the schematic diagram of inner ring raceway；
Figure 13 is the structural representation of roller.
In figure：1st, outer ring；11st, the first back-up ring；12nd, outer ring raceway；13rd, cascaded surface；2nd, inner ring；21st, the second back-up ring；22、
Inner ring raceway；23rd, the first conical section；24th, the first arc section；25th, three-arc section；26th, the 4th conical section；3rd, retainer；31、
Frame frame；311st, outer wall；312nd, inwall；32nd, set a roof beam in place；321st, cant beam；322nd, intermediate mass；3221st, pad；33rd, pocket window；34th, strengthen
Muscle；4th, roller；41st, bus；411st, straightway；412nd, first section；413rd, rear；42nd, planar section；43rd, the 4th arc section；44th, circle
Arc changeover portion；45th, locating slot；5th, oil groove；51st, the second arc section；52nd, the second conical section；53rd, triconic section.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, a kind of high-pressure oil pump roller cylinder roller bearing, including outer ring 1, inner ring 2, retainer 3 and many
Individual roller 4, roller 4 is embedded in retainer 3, and inner ring 2 is placed in the axis hole of outer ring 1, the outer wall of inner ring 2 and the inwall of outer ring 1
Form the holding chamber for housing roller 4.
Referring to Fig. 2, retainer 3 includes the rounded frame frame 31 in two sections, spacing is left between two frame frames 31, in two framves
Be provided between frame 31 it is multiple set a roof beam in place 32, set a roof beam in place 32 uniform in the circumference of frame frame 31, adjacent two setting a roof beam in place pocket window of formed between 32
33.32 are set a roof beam in place from middle part to axis hole side indent, it includes the intermediate mass 322 of two cant beams 321 of two cant beams 321 and connection,
The inwall 312 of frame frame 31 is provided with reinforcement 34 with 32 junction of setting a roof beam in place.
Referring to Fig. 3 and Fig. 4, be provided with pad 3221 on the two side of intermediate mass 322, pad 3221 can by glue or
Person's sulfuration is connected with intermediate mass 322, and the part after installed in retainer 3 of roller 4 can be connected on pad 3221, play certain
Spacing and cushioning effect.
The outer wall 311 of frame frame 31 is raised up to form the first convexity t with inwall 312 by middle part1, the first convexity t1
In the middle of 0.030 ~ 0.040mm, preferably the first convexity t1For 0.036mm.
With reference to Fig. 5 to Fig. 7, in cylinder, its two ends is respectively arranged with the first back-up ring 11, in two first back-up rings for outer ring 1
Outer ring raceway 12 is provided between 11 inner face, the section of outer ring raceway 12 is circle, and its middle part raises up to form second
Convexity t2, the second convexity t2Between 0.001 ~ 0.004mm, preferably the second convexity t2For 0.003mm, and outer ring raceway 12
Minimum diameter section is greater than the diameter of bore of the first back-up ring 11 so that form single order between the first back-up ring 11 and outer ring raceway 12
Tread 13.
The cascaded surface 13 of the first back-up ring 11 and the intersection of outer ring raceway 12 offer oil groove 5, and the cell wall of oil groove 5 is by the
Two arc sections 51 and the second conical section 52 being connected with the two ends of the second arc section 51 are constituted with triconic section 53, the second taper
Section 52 is connected with outer ring raceway 12, and triconic section 53 is connected with cascaded surface 13.
Referring to Fig. 8, inner ring 2 is same generally cylindrical, horizontally outward extends to form the second back-up ring 21 in its one end, second
The section of back-up ring 21 is also round, and the outer wall of inner ring 2 of adjacent second back-up ring 21 is set to inner ring raceway 22.
Referring to Figure 12, the middle part of inner ring raceway 22 raises up to form the 3rd convexity t3, the two ends of inner ring raceway 22 are arranged
There is the 4th convexity t4, wherein the 3rd convexity t3Less than the 4th convexity t4, the 3rd convexity t3Between 0.001 ~ 0.004mm, preferably
Three convexitys t3For 0.002；Fourth t4Between 0.004 ~ 0.007mm, preferably fourth t40.006mm。
With reference to Fig. 8 to Figure 11, the intersection of the back-up ring 21 of inner ring raceway 22 and second is again provided with oil groove 5, the oil groove 5 with
Oil groove 5 on outer ring 1 is identical；Inner ring 2 is provided with the first conical section 23 away from the end face of the second back-up ring 21, with the first conical section
One of 23 is connected with the first arc section 24, and the first arc section 24 is connected with the end face of inner ring 2, the other end of the first conical section 23
It is connected with inner ring raceway 22.
The inwall two ends of the axis hole of inner ring 2 are provided with three-arc section 25, and two of three-arc section 25 is respectively connected with
Four conical sections 26, one of them the 4th conical section 26 is connected with shaft hole inner wall, another 4th conical section 26 and the second back-up ring 21
End face connects.
Referring to Figure 13, the bus 41 of roller 4 includes the straightway 411 at middle part and is connected to the head at the two of straightway 411
Section 412 and rear 413, first section 412 is symmetrical arranged with rear 413, and initial and end section 412,413 forms roller 4 with straightway 411
5th convexity t5, the 5th convexity t5Between 0.003 ~ 0.008mm, preferably the 5th convexity t5For 0.006mm.
The planar section 42 of both ends of the surface of roller 4 including middle part and the 4th arc section 43 being connected with planar section 42, plane
Plane at section 42 is higher than the peak of the 4th arc section 43 so that the both ends of the surface middle part of roller 4 is convex axially outward
Go out；4th arc section 43 is connected by an arc transition section 44 with initial and end section 412,413.Middle part in planar section 42 opens up
There is a locating slot 45, with the axis of roller 4 in 40 ° ~ 50 ° of angle a, angle a is preferably 45 ° to the cell wall of locating slot 45.
During concrete installation, roller 4 is installed on holding intracavity, and holding chamber is by the outer ring raceway 12 and inner ring 2 of outer ring 1
Circle raceway 22 is constituted, and the cascaded surface 13 on outer ring 1 defines rolling just with the inner face of the second back-up ring 21 in perpendicular is same as
The plane at two planar sections 42 that son 4 is placed in after holding chamber is P, and the inner face of the first back-up ring 11 is interior with the second back-up ring 21
End face just coincides with plane P so that two planar sections 42 of roller 4 can completely be connected to the inner face of the first back-up ring 11 and
On the inner face of two back-up rings 21.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model
Field technique personnel can make as needed the modification without creative contribution after this specification is read to the present embodiment, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (10)
1. a kind of high-pressure oil pump roller cylinder roller bearing, including inside and outside circle（1）, multiple rollers（4）And retainer（3）,
Characterized in that, the retainer（3）For Integral retainer（3）, including have two framves frame at regular intervals（31）, in two framves
Frame（31）Between along the circumferential direction have multiple setting a roof beam in place（32）, adjacent two set a roof beam in place（32）With two frame frames（31）Between enclose to form use
In spacing roller（4）Pocket window（33）, the frame frame（31）Including outer wall（311）With inwall（312）, the inside and outside wall（312、
311）Form the first convexity, wherein inwall from middle part outwardly convex（312）With set a roof beam in place（32）Junction be provided with reinforcement
（34）.
2. high-pressure oil pump roller cylinder roller bearing according to claim 1, it is characterised in that described to set a roof beam in place（32）'s
The past axis hole indent in middle part, including symmetrically arranged two pieces of cant beams（321）And two cant beams of connection（321）Intermediate mass（322）, institute
State intermediate mass（322）Both sides be provided with pad（3221）.
3. high-pressure oil pump roller cylinder roller bearing according to claim 1, it is characterised in that the outer ring（1）'s
Both ends of the surface are respectively arranged with the first back-up ring（11）, two first back-up rings（11）Between form outer ring raceway（12）, outer ring raceway（12）
With the first back-up ring（11）Inner headed face formed cascaded surface（13）；The inner ring（2）Wherein end face horizontally outward extend to be formed
Second back-up ring（21）, second back-up ring（21）Inner face and the first back-up ring（11）Inner face it is concordant, inner ring（2）Outer wall phase
Adjacent second back-up ring（21）Part forms inner ring raceway（22）, outer ring raceway（12）With inner ring raceway（22）Combination is formed for spacing
Roller（4）Holding chamber, wherein outer ring raceway（12）Middle part raise up to form the second convexity, inner ring raceway（22）Middle part
Raise up to form the 4th convexity of the 3rd convexity and two ends, the 4th convexity is greater than the 3rd convexity, institute's roller（4）Bus
（41）Middle part is straightway（411）, initial and end section（412、413）With straightway（411）Between there is the 5th convexity, and roller
（4）After being placed in holding chamber, its both ends of the surface is connected to respectively the first back-up ring（11）And second back-up ring（21）Inner face on.
4. high-pressure oil pump roller cylinder roller bearing according to claim 3, it is characterised in that the inner ring（2）Far
From the second back-up ring（21）One end be provided with and inner ring raceway（22）First conical section of connection（23）, first conical section
（23）Pass through the first arc section between end face（24）Connection.
5. high-pressure oil pump roller cylinder roller bearing according to claim 4, it is characterised in that the cascaded surface（13）
With outer ring raceway（12）Intersection and the second back-up ring（21）End face and inner ring raceway（22）Intersection offer in
Recessed oil groove（5）.
6. high-pressure oil pump roller cylinder roller bearing according to claim 5, it is characterised in that the oil groove（5）'s
Cell wall by indent the second arc section（51）And with the second arc section（51）Second conical section of two ends connection（52）With the 3rd
Conical section（53）Composition, second conical section（52）With inner ring raceway（22）Connection, triconic section（53）With the second back-up ring
（21）End face connection.
7. high-pressure oil pump roller cylinder roller bearing according to claim 1, it is characterised in that the inner ring（2）Axle
The inwall two ends in hole are provided with three-arc section（25）, three-arc section（25）Two ends respectively pass through the 4th conical section（26）
With inner ring（2）End face and inner ring（2）Inwall connection.
8. high-pressure oil pump roller cylinder roller bearing according to claim 1, it is characterised in that the roller（4）'s
Both ends of the surface include being located at the planar section at middle part（42）And and planar section（42）4th arc section of connection（43）, the 4th circular arc
Section（43）By arc transition section（44）With roller（4）Bus（41）Connection.
9. high-pressure oil pump roller cylinder roller bearing according to claim 8, it is characterised in that the planar section（42）
On offer locating slot（45）, the locating slot（45）Cell wall and axis there is 40 ° ~ 50 ° of angle.
10. high-pressure oil pump roller cylinder roller bearing according to claim 3, it is characterised in that first convexity
Between 0.030 ~ 0.040mm, second convexity between 0.001 ~ 0.004mm, the 3rd convexity 0.001 ~
Between 0.004mm, between 0.004 ~ 0.007mm, the 5th convexity is between 0.003 ~ 0.008mm for the 4th convexity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621151044.5U CN206144993U (en) | 2016-10-29 | 2016-10-29 | High -pressure oil pump is cylindrical roller bearing for gyro wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621151044.5U CN206144993U (en) | 2016-10-29 | 2016-10-29 | High -pressure oil pump is cylindrical roller bearing for gyro wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206144993U true CN206144993U (en) | 2017-05-03 |
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ID=58622173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621151044.5U Active CN206144993U (en) | 2016-10-29 | 2016-10-29 | High -pressure oil pump is cylindrical roller bearing for gyro wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206144993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296646A (en) * | 2018-12-06 | 2019-02-01 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Cylinder roller bearing with M type retainer structure |
-
2016
- 2016-10-29 CN CN201621151044.5U patent/CN206144993U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296646A (en) * | 2018-12-06 | 2019-02-01 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Cylinder roller bearing with M type retainer structure |
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