CN2283752Y - Cylindrical roller bearing for axial cam - Google Patents
Cylindrical roller bearing for axial cam Download PDFInfo
- Publication number
- CN2283752Y CN2283752Y CN 96213960 CN96213960U CN2283752Y CN 2283752 Y CN2283752 Y CN 2283752Y CN 96213960 CN96213960 CN 96213960 CN 96213960 U CN96213960 U CN 96213960U CN 2283752 Y CN2283752 Y CN 2283752Y
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- CN
- China
- Prior art keywords
- outer ring
- bearing
- roller
- end cap
- roller bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a cylindrical roller bearing for camshafts, which especially suitable for a high-pressure oil pump, etc. of industries of diesel engines, automobile engines, etc. The utility model is composed of an outer ring, an inner ring and a cylinder roller, and has no cages, full rollers and radial self locking. The utility model is characterized in that the outer ring 1 and the inner ring 2 respectively have a single flange which can be correspondingly matched. The end face of non flange of the outer ring 1 is level with the end face of the roller 3, and is provided with an outer ring end cover 4 formed by punching. Simultaneously, the end cover 4 and a fully loaded cylindrical roller assembly form a separable and radially self locked cylindrical roller bearing which can bear certain axial force.
Description
The utility model relates to a kind of camshaft roller bearing, is specially adapted to high-pressure injection pump in the industries such as motor car engine, diesel engine etc.
In the prior art, for example " the camshaft roller bearing " of the described flange belts fore shaft of 95222441.0 patents replaced the application of tapered roller bearing on camshaft, though improved 3-9 doubly because of its life-span, is subjected to the user and welcomes.But this kind bearing is compared with tapered roller bearing, exists the shortcoming of loading and unloading inconvenience.For example Figure 1 shows that camshaft adopts the tapered roller bearing supporting, because tapered roller bearing is a separable type, its inner ring 2, retainer and tapered roller 3 are formed assembly, and outer ring 1 is then separable with said modules.Because the effect of repeated stock power P on the camshaft 6, therefore interference fit is all adopted in bearing hole and cam journal, bearing outer ring and box body hole or bearing cap hole, generally bearing outer ring is pressed in box body hole or the bearing cap hole with press machine during assembling, with tapered roller, retainer and bearing inner race component heat are loaded on the camshaft bearing journal, assemble together with camshaft then, loading and unloading easily.During dismounting for example shown in Figure 1, after left bearing lid 5 laid down together with bearing outer ring 1, camshaft 6 can be extracted out from the left side.And " the camshaft roller bearing " of flange belts fore shaft as shown in Figure 2 is inseparable bearing, and loading and unloading are convenient not as tapered roller bearing, particularly when the dismounting bearing, needs with bearing enclose and spool together from axially pulling out.When axial force surpassed rib fore shaft coupling mechanism force, bearing outer ring separated with inner ring, and cylindrical roller will be scattered.Though adopt the bearing of 95222441.0 patents shown in Figure 2, its life-span significantly improves, and seldom need change bearing, still need dismantle when parts such as needs replacing camshaft spring, roller, bearing pin, therefore brings inconvenience.
The purpose of this utility model is improved the defective of the existing loading and unloading inconvenience of 95222441.0 model utilitys with regard to being, the easy to loading and unloading of a kind of separable type is provided, and bearing capacity and life-span are significantly higher than the camshaft bearing of tapered roller bearing.
The purpose of this utility model is achieved in that a kind of protruding axle roller bearing, be specially adapted to motor car engine, high pressure oil pump in the industries such as diesel engine etc., it is a kind of by the outer ring, the no retainer that inner ring and cylindrical roller are formed, full roller, the roller bearing of radially self-locking, it is characterized in that outer ring 1, inner ring 2 is single block border and configuration relatively, and the end face of non-rib one side of outer ring 1 and the end face of roller 3, and the outer ring end cap 4 of drawing is housed, outer ring 1 simultaneously, end cap 4 is separable with one of the cylindrical roller 3 assemblies formation of full dress, can bear certain axial force, the roller bearing of radially self-locking.
The purpose of this utility model also can further be realized by following technical measures.
Described bearing, the cylindrical portions may inner diameter d of end cap 4
1Than the little 0.02-0.10mm of outer ring 1 diameter d with matching.
Described bearing, end cap 4 are pressed on the inverted cone surface that has cone angle=10 °-20 ° on the outer ring 1.
Described bearing, end cap 4 can degenerate into a plain washer and be bonded on the end face of no rib of outer ring 1.
Described bearing, the flange height h of end cap 4 is less than rolling between 3 the diameter or the diameter 1/5th greater than roller 3.
The utility model has the advantages that: promptly kept bearing capacity height, the long advantage of life-span of " 95222441.0 " model utilitys, overcome the inconvenient shortcoming of its loading and unloading again.
1) because the same with 95222441.0 model utilitys, removed the △ part (seeing accompanying drawing 3) of outer ring 1 non-rib one side, be slightly larger than and roller width part in addition, for the rolling wheel support of cam follower has been vacated the spatial position, thereby can select the bigger bearing of dimension series for use than the general roller roller bearing of expiring under identical condition, thereby bearing dynamic load ability and bearing life are that the 1.4-1.5 of general full type roller bearing doubly reaches 3-4 doubly.
2) owing to be the separable type bearing, so the inner ring of bearing, the outer ring can same respectively cam journal, the pump housing or bearing cap interference assembling are so having under the impulsive load, can improve the contact stiffness of bearing junction plane, simplified the structure of the pump housing, axle journal, bearing loading and unloading simultaneously are very convenient.
3) adopting Internal and external cycle is the single block border structure, can not only satisfy roller bearing and can bear certain axial load, be easy to adjust bearing axial clearance, has improved turning, grinding, processing and the assembly process process of race ring again.
4) adopt the end cap of drawing to realize the roller axial limiting, compare, have the axial dimension compactness, advantages such as good manufacturability with two ribs in outer ring and spring collar structure.
Below in conjunction with Figure of description and embodiment, the utility model is further described.
Fig. 1 is that camshaft 6 adopts tapered roller bearing supporting structure form figure, wherein 1 is bearing outer ring, and inner ring 2, roller 3, bearing cap 5, camshaft 6, casing 7, cam follower rolling wheel support 8, P are for acting on the impact force on the camshaft 6 by the cam follower roller.
Fig. 2 is the roller bearing structural representation of the flange belts fore shaft of " 95222441.0 " utility model patent.
Fig. 3 is bearing structure figure of the present utility model.
Fig. 4 is known technology " radially self-locking " the condition analysis figure that bearing of the present utility model adopted.
Fig. 5 is the structural drawing of end cap 4 of the present utility model and outer ring 1.
Fig. 6 is the another kind of structural drawing of end cap 4 of the present utility model.
Embodiment, Fig. 3 are one of the utility model embodiment, the no retainer that bearing is made up of single block border outer ring 1 and single block border inner ring 2, cylindrical roller 3 and end cap 4, full roller, separable type roller bearing radially self-locking, that can bear certain axial force.Its technical measures of taking are: with reference to Fig. 3, outer ring 1, inner ring 2 adopt single block border and do configuration relatively, and the end face of non-rib one side of outer Fig. 1 and the end face of roller 3, and the outer ring end cap 4 of drawing is housed.
Concrete technical measures are:
1, adopt the technology of radially self-locking shown in Figure 4, so-called " radially self-locking " promptly by design under certain outer ring raceway diameter condition, select that diameter is big, the cylindrical roller 3 of negligible amounts, total circumferential clearance δ of control roller makes O shown in Figure 4
1O
2The line distance is less than the roller diameter D of twice
w, then bearing roller self-locking, when shedding bearing inner race, roller jam-packed each other can not fall down.
2, adopting single block border with reference to Fig. 3 outer ring 1 is that the non-rib △ that bears axial force removes with the outer ring, for the cam follower rolling wheel support is reserved space according to the most of characteristics that adopt tapered roller bearing of present camshaft.
3, adopt single block border with reference to Fig. 3 inner ring 2, and be relative configuration, on the one hand in order to bear certain axial force, on the other hand in order to form the separable type bearing with roller, outer coil assembly with the outer ring single block border.
4, add bearing (ball) cover 4 with reference to non-rib one side in Fig. 3 outer ring, it is to form with the sheet metal punching out.End cap 4 barrel bore d
1Ratio and the little 0.02-0.10mm of outer ring 1 fitting surface diameter d (present embodiment is 0.03-0.04mm) adopt hot charging, assembling rear end cover outside diameter D
1Than the little 0.2mm of bearing outer diameter D.Flange height h=3mm.
Present embodiment bearing boundary dimension is with tapered roller bearing 7505, cylindrical roller is φ 8 * 12, be designed to the radially self-locking bearing, roller circumference total backlash δ=0.20mm, radially self-locking amount 0.15mm, the Internal and external cycle stand out is 2.8mm, Internal and external cycle is all single block border, configuration relatively, end cap 4 end face apertures are 42mm.
In addition, can be an inverted cone surface with reference to Fig. 5 end cap 4 and outer ring 1 fitting surface, cone angle=10 °-20 °, end cap is close on the conical surface by spinning or punching press contraction method, with reference to Fig. 6 end cap 4 is a plain washer structural type, is bonded in 1 non-rib end, outer ring with mull technique.
The effect of end cap 4 is:
1, the roller bearing of radially self-locking packs cylindrical roller than easy from radially packing into into from the side, outer ring.Allow roller side dress after adopting end cap.
2, block roller, prevent that roller from axially dropping out from the outer ring, make roller, end cap and outer ring form bearing unit.
Claims (5)
1, a kind of camshaft roller bearing, be specially adapted to motor car engine, high-pressure service pump in the industries such as diesel engine etc., it is by the outer ring, the no retainer of inner ring and cylindrical roller, full roller, the roller bearing of radially self-locking, it is characterized in that outer ring (1), inner ring (2) is single block border, and configuration relatively, and the end face of the end face of non-rib one side of outer ring (1) and roller (3), and the outer ring end cap (4) of drawing is housed, outer ring 1 simultaneously, end cap (4) is separable with one of cylindrical roller (3) the assembly formation of full dress, can bear certain axial force, the roller bearing of radially self-locking.
2, bearing according to claim 1 is characterized in that the cylindrical portions may inner diameter d of end cap (4)
1Than the little 0.02～0.10mm of outer ring (1) diameter d with matching.
3, bearing according to claim 1 is characterized in that end cap (4) is pressed on the inverted cone surface that has cone angle=10 °-20 ° on the outer ring (1).
4,, it is characterized in that end cap (4) is on the end face of a plain washer no rib that is bonded in outer ring (1) according to the described bearing of arbitrary claim in the claim 1 to 3.
5, according to the described bearing of arbitrary claim in the claim 1 to 3, the flange height h that it is characterized in that end cap (4) is between diameter and the diameter 1/5th greater than roller (3) less than roller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96213960 CN2283752Y (en) | 1996-06-26 | 1996-06-26 | Cylindrical roller bearing for axial cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96213960 CN2283752Y (en) | 1996-06-26 | 1996-06-26 | Cylindrical roller bearing for axial cam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2283752Y true CN2283752Y (en) | 1998-06-10 |
Family
ID=33896170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96213960 Expired - Fee Related CN2283752Y (en) | 1996-06-26 | 1996-06-26 | Cylindrical roller bearing for axial cam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2283752Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899639A (en) * | 2014-03-27 | 2014-07-02 | 苏州金诚轴承有限公司 | Rolling wheel roller bearing |
| CN106194999A (en) * | 2016-09-29 | 2016-12-07 | 上海斐赛轴承科技有限公司 | A kind of harmonic speed reducer Multi-contact flexible bearing |
-
1996
- 1996-06-26 CN CN 96213960 patent/CN2283752Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899639A (en) * | 2014-03-27 | 2014-07-02 | 苏州金诚轴承有限公司 | Rolling wheel roller bearing |
| CN106194999A (en) * | 2016-09-29 | 2016-12-07 | 上海斐赛轴承科技有限公司 | A kind of harmonic speed reducer Multi-contact flexible bearing |
| CN106194999B (en) * | 2016-09-29 | 2019-03-19 | 上海斐赛轴承科技有限公司 | A kind of harmonic speed reducer Multi-contact flexible bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: PEOPLE S BEARING PLANT, BEIJING TO: BEIJING NEEDLE BEARING FACTORY |
|
| CP03 | Change of name, title or address |
Address after: 100072 Beijing city Fengtai District Changxindian southeast Street No. 1 Patentee after: Beijing needle roller bearing factory Address before: 102320 Beijing Mentougou Qingshui River Patentee before: Renmin Bearing Factory, Beijing |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |