CN1062057C - High-speed heavy-load new-type thrust radial rolling bearing - Google Patents
High-speed heavy-load new-type thrust radial rolling bearing Download PDFInfo
- Publication number
- CN1062057C CN1062057C CN98100108A CN98100108A CN1062057C CN 1062057 C CN1062057 C CN 1062057C CN 98100108 A CN98100108 A CN 98100108A CN 98100108 A CN98100108 A CN 98100108A CN 1062057 C CN1062057 C CN 1062057C
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- China
- Prior art keywords
- bearing
- roller
- tapered roller
- retainer
- load
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- 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
- F16C19/381—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 at least one row for radial load in combination with at least one row for axial load
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to a novel thrust centripetal flowing bearing for a heavy load at a high speed, which is designed for a railway locomotive. The present invention is characterized in that two kinds of rolling elements such as cylindrical rollers and conical rollers are arranged in the same bearing; the cylindrical rollers bear a pure radial working load, and the conical rollers bear a pure axial working load; the rotating ring race of a conical roller bearing part forms a plane which is vertical to the axial line of the bearing, and a retainer ring race forms a conical surface; the sum of the 2 times of the cone angles of the conical surface and the conical rollers equals to 180 degrees. The pin shaft of a cage penetrates through the center of the rolling elements, and is provided with an embossing rod for storing lubricating grease. The present invention has the advantages of fine high-speed performance, high carrying capacity, reliable and safe operation, high efficiency, energy saving, long service life, low cost, etc.
Description
The present invention relates to a kind of centripetal rolling thrust bearing, belong to the technical field of rolling bearing, generally comprise bearing outer ring, inner ring and rolling element.
The inventor is existing doing painstaking research and obtained some achievements for many years in the rolling bearing field, as " centripetal rolling thrust bearing " patent No. ZL90101361.7; " a kind of novel high speed heavy duty rolling bearing " patent No. ZL94100808.8.These two patented technologies are verified in the test that is converted into practical product, compare with domestic and international existing state-of-the-art bearing, and it is low to have a temperature rise, and performance is good, the advantage that cost is low.
But at railway locomotive or heavy-duty freight car, or under other overweight load conditions, under the limited condition of structure space, the bearing of the above-mentioned type can not satisfy these specific requirements especially in addition.
For this reason, the object of the invention provides a kind of high-speed heavy-load new-type thrust radial rolling bearing, and it can be adapted to the force request under the heavily loaded high speed operation operating modes such as railway locomotive, structure is provided with reasonable compactness, cheap for manufacturing cost, and than like product superior performance, extend working life greatly.
For above-mentioned purpose, the present invention so solves:
Super-heavy loads such as a kind of railway vehicle usefulness, particularly railway locomotive are the centripetal rolling thrust bearing of usefulness at a high speed, comprises bearing outer ring, inner ring and rolling element, it is characterized in that:
At least one roller bearing and at least one tapered roller bearing are combined; Roller bearing is used to bear radial load; Tapered roller bearing is used to bear thrust load.The inner ring of roller bearing and the rotary inner ring of tapered roller constitute one; The raceway of rotary inner ring epicone post is a plane, and itself and bearing axis are perpendicular; The fixedly outer ring of tapered roller is provided with a conical surface raceway, the cone angle of its semi-cone angle and tapered roller and be 90 the degree, described conical surface raceway is provided with a ring flange, is used to bear the load of tapered roller effect.
Centripetal rolling thrust bearing of the present invention both can adopt existing cage or frame retainer, but preferably used the retainer of the bearing pin riveted joint annular ring of the new wound of the present invention; Bearing pin is inserted in the center hole of cylindrical roller or tapered roller rotationally; Also being provided with the embossing rod places between the roller to keep more lubricating grease to improve operating conditions.
Elaborate the present invention below in conjunction with the embodiment in the accompanying drawing.
Fig. 1 is the partial longitudinal section of centripetal rolling thrust bearing of the present invention;
Fig. 2 is the partial, partially-cross-sectioned side-elevation view of the retainer of bearing of the present invention;
Fig. 3 is a kind of retainer partial side view of tapered roller bearing part of the present invention;
Fig. 4 A is the another kind of retainer partial sectional view of tapered roller bearing of the present invention;
Fig. 4 B is the partial side view of the retainer of Fig. 4 A;
Among the figure, 1 is bearing inner race; 2 is spacer ring; 3 is the cylindrical roller retainer; 4 is bearing outer ring; 5 is hollow cylindrical roller; 6 is bearing end circle; 7 is the tapered roller retainer; 8 is the hollow cone roller; 9 is cylindrical roller retainer bearing pin; 10 for depositing lubricating grease embossing rod; 11 is annular ring; 12 are tapered roller riveted joint retainer; 13 are tapered roller riveted joint retainer outer shroud; 14 is tapered roller retainer bearing pin; 15 is distance sleeve; 16 are ring in the tapered roller riveted joint retainer.
The present invention has following obvious advantage and disadvantage:
Because taper roll bearing is used for bearing axial load, so its bearing capacity is better than ball journal greatly Hold, but in order to make it combined with cylinder roller bearing, the inventor is originally with on the rotary inner ring Raceway be made as a plane and the raceway on the retainer plate be made as a conical surface, like this, retainer plate rolls The cone angle of road face adds that 2 times of the taper roller cone angle equal 180 degree. The purpose of design makes rotation like this Each point on circle raceway and the taper roller contact wire all is rolling friction in theory. Also make the taper roller axle Hold part, do not bear a bit radially service load; And allow the turning collar raceway along the taper roller bus Direction is slided. Because cylinder roller bearing partly has end-play, and the bullet under Radial Loads The property distortion, the taper roll bearing part, the center of turning collar raceway, with the center of retainer plate raceway not Overlap, bigger off-centre is arranged. Therefore at work, taper roll bearing part turning collar raceway is along circle The slip of cone roller generatrix direction is that inevitably this structure of the present invention has just in time satisfied this Requirement.
The retainer (Fig. 2) of roller bearing part.By two support bodys and with the same number of bearing pin of cylindrical roller, and embossing rod is formed.She Ji purpose like this: it is in order to deposit more lubricating grease in bearing, to be beneficial to the roller bearing part and to have sufficient lubricating grease in the long term that the embossing rod is set.Bearing pin is the critical elements that realizes the retainer function.Retainer forces roller to be evenly distributed, and roller promotes retainer and rotates, and all realizes by bearing pin.Roller and bearing pin contacting point have interaction force to exist, and relative movement is also arranged, thereby have frictional force.This frictional force has a frictional resistance moment to roller centre.The frictional resistance moment that bearing pin passes roller centre is littler more than four times than the frictional resistance moment that acts on roller surface.Thereby friction horsepower is little, and heating value is little.
The retainer of tapered roller bearing part.There are two kinds: (1) solid type fenestra retainer; (2) pin axle type riveted joint retainer (Fig. 4).Because this retainer of Fig. 4, bearing pin will pass roller centre, and roller becomes hollow, and under onesize loading, roller will produce bigger distortion.Because Fig. 4 retainer, efficient height, and can alleviate structure weight is so under the work loads effect, the distortion of generation should preferentially be selected bearing pin riveted joint retainer for use if allow.When adopting the hollow cone roller, when the amount of deformation of generation does not allow, can select Fig. 3 retainer for use.
The present invention program is in no way limited to above-described several specific embodiment, and those skilled in the art can make various modification under the enlightenment of the present invention design, but all can not break away from protection scope of the present invention.
Claims (5)
1. the high-speed heavy-load new-type thrust radial rolling bearing used of railway vehicle usefulness, particularly railway locomotive, it is characterized in that: at least one roller bearing and at least one tapered roller bearing are combined; Roller bearing is used to bear radial load; Tapered roller bearing is used to bear thrust load; The inner ring of roller bearing and the rotary inner ring of tapered roller constitute one (1); Tapered roller raceway on this rotary inner ring is a plane, and vertical with bearing axis; The fixedly outer ring of tapered roller is provided with a conical surface raceway; The cone angle of its semi-cone angle and tapered roller and be 90 °; Conical surface raceway on the fixedly outer ring of tapered roller is provided with a ring flange, is used to bear the load of tapered roller effect.
2. by the described centripetal rolling thrust bearing of claim 1, it is characterized in that: the retainer of tapered roller bearing is an annular plate, which is provided with the truncated cone shape hole corresponding with the tapered roller number.
3. by the described centripetal rolling thrust bearing of claim 1, it is characterized in that: the retainer of roller bearing comprises two annular rings and corresponding to the bearing pin of cylindrical roller number, cylindrical roller is provided with center hole and movably places on the above-mentioned bearing pin; Bearing pin two ends and annular ring riveted joint; The retainer of tapered roller bearing comprises the annular ring that two sizes are nested with and the bearing pin of respective number, and tapered roller is provided with center hole to place rotationally on the above-mentioned bearing pin, and bearing pin is riveted mutually with big or small annular ring; Conical surface raceway on the fixedly outer ring of tapered roller is provided with a ring flange to bear the load of tapered roller effect.
4. by the described centripetal rolling thrust bearing of claim 3, it is characterized in that: on the retainer of roller bearing, be provided with the embossing rod, do not contact with the bearing pin parallel configuration and between two cylindrical rollers but with it and this embossing rod center line to the distance of bearing axis greater than the distance of cylindrical roller center line to bearing axis.
5. by one of claim 1 to 4 described centripetal rolling thrust bearing, it is characterized in that: two roller bearings and two tapered roller bearings are combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98100108A CN1062057C (en) | 1998-01-06 | 1998-01-06 | High-speed heavy-load new-type thrust radial rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98100108A CN1062057C (en) | 1998-01-06 | 1998-01-06 | High-speed heavy-load new-type thrust radial rolling bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1188862A CN1188862A (en) | 1998-07-29 |
| CN1062057C true CN1062057C (en) | 2001-02-14 |
Family
ID=5215805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98100108A Expired - Fee Related CN1062057C (en) | 1998-01-06 | 1998-01-06 | High-speed heavy-load new-type thrust radial rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1062057C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7603955B2 (en) * | 2005-07-11 | 2009-10-20 | Magnus Div. of L.V. Ventures, Inc. | Sleeve bearing for railway traction motor |
| CN102242768A (en) * | 2011-04-11 | 2011-11-16 | 董兰田 | Bidirectional pressure bearing |
| CN114483777A (en) * | 2022-02-25 | 2022-05-13 | 北京航空航天大学 | Rolling element and cage integrated high-speed heavy-load rolling bearing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2379722A1 (en) * | 1977-02-04 | 1978-09-01 | Roulements Soc Nouvelle | Bearing combining taper rollers and balls - has different thrust capacities in each direction to suit design load |
-
1998
- 1998-01-06 CN CN98100108A patent/CN1062057C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2379722A1 (en) * | 1977-02-04 | 1978-09-01 | Roulements Soc Nouvelle | Bearing combining taper rollers and balls - has different thrust capacities in each direction to suit design load |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1188862A (en) | 1998-07-29 |
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |