CN101391560B - Bearing unit of drive gear wheel - Google Patents
Bearing unit of drive gear wheel Download PDFInfo
- Publication number
- CN101391560B CN101391560B CN2008101207244A CN200810120724A CN101391560B CN 101391560 B CN101391560 B CN 101391560B CN 2008101207244 A CN2008101207244 A CN 2008101207244A CN 200810120724 A CN200810120724 A CN 200810120724A CN 101391560 B CN101391560 B CN 101391560B
- Authority
- CN
- China
- Prior art keywords
- unit
- bearing unit
- runways
- driving gear
- outer ring
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
- F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a driving gear bearing unit, comprising a unit external ring, two internal rings, two rows of conical rollers, two pairs of retainers and lock catches; the internal side of the unit external ring is provided with two rows of conical internal runways which are arranged in parallel and respectively matched with the external runways of the two internal rings so as to form twomovable runways; the two internal rings are fixedly positioned by the lock catches; two rows of the conical rollers are respectively arranged in the two pairs of retainers and guided by the retainersto be respectively arranged in the two movable runways and contact with the runways in a rolling way; the unit external ring 1 is provided with a flange which is directly connected with a bridge transition box shell. The driving gear bearing unit is an integration with the finely-adjusted pre-tightening force, needs no adjustment by adjusting washers, simplifies the structure, has simple and convenient installation, shortens the production assembly time of the dual-linked driving bridge central transmission mechanism and ensures the best usage effect of the bearing unit.
Description
[technical field]
The present invention relates to auto parts and components, relate in particular to the duplex that is used for heavy-duty commercial vehicle and drive the initiatively driving gear shaft bearing unit of the pivoting support of bevel pinion shaft of jackshaft central control mechanism.
[background technology]
The duplex of heavy-duty commercial vehicle drives in the jackshaft central control mechanism at present, and the pivoting support of driving gear all is to constitute with the single-row medium-sized tapered roller bearing mounted in pairs of two covers through the strictness apolegamy.Combine by a plurality of parts such as coro bearng, spacer ring, bearing seat, outer ring gland, bearings cap shim.
In fitting process, the bearing installation parts are more, and assembling is complicated, and the adjusting of bearing pre-fastening realizes by the bearing cap shim on the gland of adjust a bearing outer ring.And locating distance main, ring gear is to realize by the bearing cap shim of adjust a bearing shell and transition case joint face.Like this, in the central control mechanism fitting process, usually the adjustment because of the relative position of master, ring gear has changed the good bearing pre-fastening of adjusted, needs the predetermincd tension of repetition adjust a bearing again.And the adjustment effect of bearing pre-fastening directly has influence on bearing load carrying capacity, and this has restricted the quality that drives the jackshaft central control mechanism on the one hand, has also influenced the production efficiency of whole chassis fitting line on the other hand.
[summary of the invention]
Purpose of the present invention solves the problems of the prior art exactly, a kind of driving gear shaft bearing unit is proposed, can adjust predetermincd tension and Stability Analysis of Structures in advance, can shorten duplex and drive jackshaft central control mechanism production time of setting up, and guarantee bearing unit result of use the best.
For achieving the above object, the present invention proposes a kind of driving gear shaft bearing unit, comprise outer ring, unit, two inner rings, two row tapered rollers, two width of cloth retainer and snap closes, the inboard of outer ring, described unit is provided with the parallel conical interior raceway of two row, cooperate with the outer raceway of two inner rings respectively, constitute two rolling raceways; Two inner rings are by the snap close positioning and fixing; Two row tapered rollers are placed in respectively in the two secondary retainers, and by the retainer guiding, two row tapered rollers lay respectively in two rolling raceways, with the raceway rolling touch; Have on the outer ring, unit 1 and be used for and the direct coupled flange of pontic transition tank shell.
As preferably, the center of gyration distance of described two row tapered rollers is 30mm-40mm, promptly at same installing space, in the bearing unit center of gyration of two row tapered rollers apart from than the center of gyration of original design apart from having increased 6mm～12mm, make driving gear shorten more than 5%, thereby effectively improved the rigidity of duplex driving jackshaft central control mechanism to the distance of bearing fulcrum.
As preferably, be symmetrically distributed with four oil holes around the outer ring, described unit.Four oil holes that distribute all around of bearing unit outer ring obtain to lubricate fully in the time of can ensureing taper roller running in it.
As preferably, the plain line of the outer raceway circular conical surface of the interior raceway of outer ring, described unit and inner ring all has convexity.Thereby make bearing unit can obtain higher load-carrying capacity, can significantly improve the rolling contact fatigue drag again, guarantee that bearing unit has very high reliability.
Beneficial effect of the present invention: driving gear shaft bearing unit of the present invention is the integral body that predetermincd tension has been adjusted, do not need to adopt again bearing cap shim adjustment, can be directly installed on the pontic transition tank shell, simple installation, shorten duplex greatly and driven jackshaft central control mechanism production time of setting up, and guaranteed bearing unit result of use the best.Not only improve the quality of driving jackshaft central control mechanism, and improved the production efficiency of whole chassis fitting line.Improved load-carrying capacity and the serviceability of heavy duty truck with double drive axle, simultaneously because the bearing unit installation and maintenance are very convenient, improve the production efficiency of assembling and the quality of double drive axle central control mechanism greatly, had extraordinary economic benefit and social benefit.
Feature of the present invention and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the structural representation of driving gear shaft bearing unit of the present invention.
[specific embodiment]
Consult Fig. 1, the driving gear shaft bearing unit comprises outer ring, unit 1, two inner rings 2, two row tapered rollers 3, two width of cloth retainers 4 and snap closes 5, and the inboard of outer ring, described unit 1 is provided with raceway in parallel conical of two row, cooperate with the outer raceway of two inner rings 2 respectively, constitute two rolling raceways; Two inner rings 2 are by snap close 5 positioning and fixing; Two row tapered rollers 3 are placed in respectively in the two secondary retainers 4, and by retainer 4 guiding, two row tapered rollers 3 lay respectively in two rolling raceways, with the raceway rolling touch; Have on the outer ring, unit 1 and be used for and the direct coupled flange of pontic transition tank shell.Whole unit is a fixing integral body, and its predetermincd tension is adjusted, and does not need that bearing cap shim is set again and regulates, and simplifies the structure, and has improved production efficiency.
In limited installing space, the center of gyration distance of described two row tapered rollers 3 is 30mm-40mm, promptly with original same installing space, in the bearing unit center of gyration of two row tapered rollers apart from than the center of gyration of original design apart from having increased 6mm～12mm, make driving gear shorten more than 5%, thereby effectively improved the rigidity of duplex driving jackshaft central control mechanism to the distance of bearing fulcrum.Be symmetrically distributed with four oil holes 6 around the outer ring, described unit 1.Obtain lubricated fully in the time of can ensureing taper roller 3 runnings in it.The plain line of the outer raceway circular conical surface of the interior raceway of outer ring, described unit 1 and inner ring 2 all has convexity.Taper roller 3 assemblies adopt the preferential optimal design of intensity, and roller end face is a spherical crown.Thereby make bearing unit can obtain higher load-carrying capacity, can significantly improve the rolling contact fatigue drag again, guarantee that bearing unit has very high reliability.
In the above main drive gear bearing unit assembly process, mix up bearing pre-fastening in advance.
The application of this later-model driving gear shaft bearing unit, further improved load-carrying capacity and the serviceability of heavy duty truck with double drive axle, simultaneously because the bearing unit installation and maintenance are very convenient, improve the production efficiency of assembling and the quality of double drive axle central control mechanism greatly, had extraordinary economic benefit and social benefit.
The foregoing description is to explanation of the present invention, is not limitation of the invention, any structure after the simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (3)
1. driving gear shaft bearing unit, comprise outer ring, unit (1), two inner rings (2), two row tapered rollers (3), two width of cloth retainers (4) and snap close (5), the inboard of outer ring, described unit (1) is provided with the parallel conical interior raceway of two row, outer raceway with two inner rings (2) cooperates respectively, constitutes two rolling raceways; Two inner rings (2) are by snap close (5) positioning and fixing; Two row tapered rollers (3) are placed in respectively in the two secondary retainers (4), and by retainer (4) guiding, two row tapered rollers (3) lay respectively in two rolling raceways, with the raceway rolling touch; Have on the outer ring, unit (1) and be used for and the direct coupled flange of pontic transition tank shell, it is characterized in that: the center of gyration of described two row tapered rollers (3) is apart from being 30mm-40mm.
2. driving gear shaft bearing unit as claimed in claim 1 is characterized in that: be symmetrically distributed with four oil holes (6) around the outer ring, described unit (1).
3. driving gear shaft bearing unit as claimed in claim 1 or 2 is characterized in that: the plain line of the outer raceway circular conical surface of the interior raceway of outer ring, described unit (1) and inner ring (2) all has convexity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101207244A CN101391560B (en) | 2008-09-02 | 2008-09-02 | Bearing unit of drive gear wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101207244A CN101391560B (en) | 2008-09-02 | 2008-09-02 | Bearing unit of drive gear wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101391560A CN101391560A (en) | 2009-03-25 |
| CN101391560B true CN101391560B (en) | 2010-12-29 |
Family
ID=40492140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101207244A Expired - Fee Related CN101391560B (en) | 2008-09-02 | 2008-09-02 | Bearing unit of drive gear wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101391560B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305245A (en) * | 2011-08-25 | 2012-01-04 | 中国航空动力机械研究所 | Bearing |
| WO2014112927A1 (en) * | 2013-01-18 | 2014-07-24 | Aktiebolaget Skf | Bearing assembly |
| CN108223566B (en) * | 2018-02-05 | 2024-02-20 | 洛阳新强联回转支承股份有限公司 | Soft-belt-free large-cone-angle double-row tapered roller slewing bearing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201304854Y (en) * | 2008-09-02 | 2009-09-09 | 杭州兆丰汽车零部件制造有限公司 | Bearing unit of driving gear |
-
2008
- 2008-09-02 CN CN2008101207244A patent/CN101391560B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201304854Y (en) * | 2008-09-02 | 2009-09-09 | 杭州兆丰汽车零部件制造有限公司 | Bearing unit of driving gear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101391560A (en) | 2009-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201304854Y (en) | Bearing unit of driving gear | |
| US8490986B1 (en) | Steering knuckle assembly having a kingpin | |
| CN205639286U (en) | Planet pulls transmission speed reduction bearing | |
| CN104019213B (en) | The unit bearing master of bead bearing block integration subtracts assembly | |
| CN101391560B (en) | Bearing unit of drive gear wheel | |
| CN201636203U (en) | Double-row tapered roller bearing for automobile main reducer | |
| CN101936335A (en) | Bearing assembly and mounted component for a differential drive | |
| CN105952802A (en) | Non-maintenance hub unit assembly with brake drum | |
| CN103213455B (en) | Vehicle wheel hub assembly | |
| DE102019219218A1 (en) | Electric drive | |
| CN201368188Y (en) | Supporting structure for planet gear | |
| US8714828B2 (en) | Wheel hub assembly with dual rows of rolling elements | |
| CN204004316U (en) | The integrated unit bearing master of bead bearing support subtracts assembly | |
| CN204549726U (en) | A kind of novel double wrap sheave structure | |
| CN201763806U (en) | Wheel hub unit having three rows of angular-contact ball bearings | |
| CN105658999A (en) | Supporting assembly for lightweight differential | |
| RU2649106C2 (en) | Towing bearing assembly for railway wheels | |
| CN203157648U (en) | Balanced suspension system using cone-shaped rubber bearings | |
| CN203095371U (en) | Head sheave device of multi-rope friction type lifting machine | |
| RU2469218C2 (en) | Assembly method of bearings of pure rolling on basis of standard rolling bodies | |
| CN201368131Y (en) | Integral retainer for oversize thrust roller bearing | |
| CN108591251A (en) | Bearing unit of drive gear wheel | |
| DE102013215886A1 (en) | Lightweight differential with tapered roller bearing in O arrangement and increased crowning of the raceway | |
| CN202768744U (en) | Axle hub reduction gear assembly | |
| CN105822664A (en) | Hub bearing unit of wheel reduction axle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20140902 |
|
| EXPY | Termination of patent right or utility model |