CN103388629A - Bearing arrangement structure as well as speed reducer - Google Patents
Bearing arrangement structure as well as speed reducer Download PDFInfo
- Publication number
- CN103388629A CN103388629A CN2013103506010A CN201310350601A CN103388629A CN 103388629 A CN103388629 A CN 103388629A CN 2013103506010 A CN2013103506010 A CN 2013103506010A CN 201310350601 A CN201310350601 A CN 201310350601A CN 103388629 A CN103388629 A CN 103388629A
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- China
- Prior art keywords
- bearing
- radial
- speed reducer
- angular contact
- bearing arrangement
- 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.)
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Classifications
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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
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
- F16C19/546—Systems with spaced apart rolling bearings including at least one angular contact bearing
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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
- F16C19/36—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 a single row of rollers
- F16C19/364—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 a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
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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
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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
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a bearing arrangement structure as well as a speed reducer provided with the same. The bearing arrangement structure comprises a radial contact bearing as well as a bearing group, wherein the radial contact bearing is arranged on a first fulcrum of a high-speed shaft; the bearing group is arranged on a second fulcrum of the high-speed shaft and comprises two angular contact radial bearings which are installed face to face; and moreover, inner rings and outer rings of the two angular contact radial bearings are all locked and fixed. During the operation, the radial contact bearing mainly bears the radial force, and the bearing group is mainly used for bearing the axial force. Because the radial force born by the angular contact radial bearings is reduced by the bearing arrangement structure, the axial component force generated by the radial force in the angular contact radial bearings is weakened, and the aim of weakening the axial load of the angular contact radial bearings is achieved finally. Therefore, according to the bearing arrangement structure and the speed reducer disclosed by the invention, three bearings are utilized to be matched, not only can greater axial load be born, but also greater radial load can be born; the bearing abrasion situation can be prevented effectively; and the long-term stable running of the speed reducer can be ensured.
Description
Technical field
The present invention relates to the mechanical transmission field, particularly a kind of bearing arrangement and a kind of speed reducer that is provided with this bearing arrangement.
Background technique
Tapered roller bearing is a kind of in centripetal angular contact bearing, belong to the divergence type bearing, its inner ring and outer ring all have cone row raceway, can bear the thrust load of larger radial load and single direction, be applicable to that the transmission shaft rigidity is large, two bearings hole coaxality occasion preferably, need to adjust play during installation.When tapered roller bearing bears radial load, owing to having angle between the suffered resultant direction of each rolling element in supporting region and bearing radial plane, can produce an axial thrust load thereby bearing is inner, need another bearing to bear this axial thrust load this moment, in addition balance.
In small-power rectangular axis speed reducer, be used for adopting the back-to-back installation of a pair of tapered roller bearing in the fixed axle sleeve that high speed shaft is positioned, jointly bear thrust load and radial load.See also the layout schematic diagram of a pair of tapered roller bearing in small-power speed reducer high speed shaft place shown in Figure 1, wherein high speed shaft 2 is set in casing 1, and by two tapered roller bearings 3 that lay respectively at casing 1 inner two ends, supported and location, two tapered roller bearings 3 lay respectively on two fulcrums of high speed shaft 2, and back-to-back installation.
and in powerful rectangular axis speed reducer, high speed shaft need to bear larger thrust load and radial load, if still according to the bearing arrangement mode in above-mentioned small-power rectangular axis speed reducer, arrange tapered roller bearing, the thrust load that this tapered roller bearing bears and radial load will inevitably increase considerably, and, tapered roller bearing inside not only needs to bear the thrust load in the high speed shaft transmission process, also need to bear the axial force that its inside produces due to radial load, and tapered roller bearing can not bear larger axial force and radial force (especially can not bear larger axial force) simultaneously, therefore, the tapered roller bearing of installing on powerful rectangular axis speed reducer high speed axle is very easy to damage.
Therefore, how designing a kind of bearing arrangement that is applicable to severe duty, is the technical problem that those skilled in the art need to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of bearing arrangement and a kind of speed reducer that is provided with this bearing arrangement, be applicable to large power overloading lotus operating mode, larger radial load not only can be born and also larger thrust load can be born, its bearing is not easy to wear, the equipment that can guarantee running steady in a long-term.
For achieving the above object, the invention provides following technological scheme:
A kind of bearing arrangement, be arranged on two fulcrums of speed reducer high speed shaft, comprise the radial contact bearing that is arranged on described high speed shaft the first fulcrum, and be arranged on bearing pack on described high speed shaft the second fulcrum, described bearing pack is two centripetal angular contact bearings installing face-to-face, and the inner ring of two described centripetal angular contact bearings and outer ring are all locked fixing.
Preferably, in above-mentioned bearing arrangement, described centripetal angular contact bearing is tapered roller bearing.
Preferably, in above-mentioned bearing arrangement, described radial contact bearing is selfaligning roller bearing.
A kind of speed reducer, be provided with above described bearing arrangement on the high speed shaft of described speed reducer.
Preferably, above-mentioned speed reducer is the rectangular axis speed reducer, and described high speed shaft is bevel gear shaft.
Preferably, in above-mentioned speed reducer, described the first fulcrum arranges near the bevel gear of described bevel gear shaft.
Bearing arrangement provided by the invention and the speed reducer that is provided with this bearing arrangement, in the course of the work, radial contact bearing in the axial direction freely, its main bearing radial force, do not bear axial force, and by the bearing pack that two centripetal angular contact bearings form, be used for bearing whole axial forces and the radial force of fraction.Compared with prior art, in the bearing arrangement that provides in the embodiment of the present invention, due to the radial force that has reduced centripetal angular contact bearing and bear, thereby cut down the axial thrust load that produces due to this radial force in centripetal angular contact bearing, finally reach the purpose of the thrust load of cutting down centripetal angular contact bearing, effectively avoided the generation of bearing wear situation.Thereby as seen, bearing arrangement provided by the invention, utilize three bearing fits to use, and can bear larger thrust load and can bear larger radial load again, can guarantee speed reducer running steady in a long-term.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the layout schematic diagram of a pair of tapered roller bearing in prior art middle low power speed reducer high speed shaft place;
The bearing arrangement schematic diagram at the high-power gear reducer high speed shaft place that Fig. 2 provides for the embodiment of the present invention.
Wherein, 1 is casing, and 2 is high speed shaft, and 3 is tapered roller bearing, and 4 is selfaligning roller bearing, and 5 are, 6 is tightening cover, and 7 is end cap.
Embodiment
The invention provides a kind of bearing arrangement and a kind of speed reducer that is provided with this bearing arrangement, be applicable to large power overloading lotus operating mode, larger radial load not only can be born and also larger thrust load can be born, its bearing is not easy to wear, the equipment that can guarantee running steady in a long-term.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment who obtains, belong to the scope of protection of the invention.
See also Fig. 2, the bearing arrangement schematic diagram at the high-power gear reducer high speed shaft place that Fig. 2 provides for the embodiment of the present invention.
The bearing arrangement that the embodiment of the present invention provides, be arranged on two fulcrums of speed reducer high speed shaft, goes for the heavy load operating mode.This bearing arrangement comprises a radial contact bearing and a bearing pack, this radial contact bearing is arranged on the first fulcrum of speed reducer high speed shaft, this bearing pack is arranged on the second fulcrum of speed reducer high speed shaft, wherein, this bearing pack is comprised of two centripetal angular contact bearings of face-to-face installation, and the inner ring of two centripetal angular contact bearings and outer ring are all locked fixing.
Above-mentioned bearing arrangement in the course of the work, radial contact bearing in the axial direction freely, the outer ring that is radial contact bearing need not be locked, therefore, its main bearing radial force, do not bear axial force, and by the bearing pack that two centripetal angular contact bearings form, be used for bearing whole axial forces and the radial force of fraction.Compared with prior art, in the bearing arrangement that provides in the embodiment of the present invention, due to the radial force that has reduced centripetal angular contact bearing and bear, thereby cut down the axial thrust load that produces due to this radial force in centripetal angular contact bearing, finally reach the purpose of the thrust load of cutting down centripetal angular contact bearing, effectively avoided the generation of bearing wear situation.Thereby as seen, the bearing arrangement that provides in the embodiment of the present invention, utilize three bearing fits to use, and can bear larger thrust load and can bear larger radial load again, the equipment that can guarantee running steady in a long-term.
As shown in Figure 2, in specific embodiment, radial contact bearing in above-mentioned bearing arrangement is selfaligning roller bearing 4, centripetal angular contact bearing is tapered roller bearing 3, and two tapered roller bearings 3 are installed face-to-face, and its outer ring is locked with end cap 7 clampings that are affixed on casing by the step on speed reducer casing 1 respectively, its inner ring is fastening locked by the sleeve 5 and the tightening cover 6 that are set on high speed shaft respectively, and tightening cover 6 is threaded with high speed shaft 2.But, those skilled in the art easily are understood that, the radial contact bearing that adopts in the present invention is not limited to selfaligning roller bearing, can also be that selfaligning ball bearing or other can bear the bearing of radial load, and the centripetal angular contact bearing that adopts in the present invention can also be angular contact ball bearing.Therefore, the present invention is to this and be not specifically limited.
The present invention also provides a kind of speed reducer, is provided with above described bearing arrangement on the high speed shaft 2 of this speed reducer.In specific embodiment, above-mentioned speed reducer is the rectangular axis speed reducer, its high speed shaft is bevel gear shaft, be used on this bevel gear shaft bevel gear one end of the first fulcrum of selfaligning roller bearing 4 near bevel gear shaft is installed, be used for installing the second fulcrum of bearing pack on this bevel gear shaft relatively away from bevel gear one end.
, to the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the present invention.Multiple modification to these embodiments will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, realization in other embodiments.Therefore, the present invention will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. bearing arrangement, be arranged on two fulcrums of speed reducer high speed shaft, it is characterized in that, comprise the radial contact bearing that is arranged on described high speed shaft the first fulcrum, and be arranged on bearing pack on described high speed shaft the second fulcrum, described bearing pack is two centripetal angular contact bearings installing face-to-face, and the inner ring of two described centripetal angular contact bearings and outer ring are all locked fixing.
2. bearing arrangement according to claim 1, is characterized in that, described centripetal angular contact bearing is tapered roller bearing (3).
3. bearing arrangement according to claim 1, is characterized in that, described radial contact bearing is selfaligning roller bearing (4).
4. a speed reducer, is characterized in that, is provided with on the high speed shaft of described speed reducer (2) as the described bearing arrangement of claim 1-3 any one.
5. speed reducer according to claim 4, is characterized in that, described speed reducer is the rectangular axis speed reducer, and described high speed shaft (2) is bevel gear shaft.
6. speed reducer according to claim 5, is characterized in that, described the first fulcrum arranges near the bevel gear of described bevel gear shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103506010A CN103388629A (en) | 2013-08-12 | 2013-08-12 | Bearing arrangement structure as well as speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103506010A CN103388629A (en) | 2013-08-12 | 2013-08-12 | Bearing arrangement structure as well as speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103388629A true CN103388629A (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103506010A Pending CN103388629A (en) | 2013-08-12 | 2013-08-12 | Bearing arrangement structure as well as speed reducer |
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| Country | Link |
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| CN (1) | CN103388629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106255832A (en) * | 2014-05-15 | 2016-12-21 | 腓特烈斯港齿轮工厂股份公司 | For locking clamping element in case the unexpected device loosened |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002264675A (en) * | 2001-03-07 | 2002-09-18 | Fuji Heavy Ind Ltd | Differential gear |
| US20050188784A1 (en) * | 2004-02-13 | 2005-09-01 | Borgwarner Inc. | Serviceable seal for transfer case |
| CN200989385Y (en) * | 2006-12-07 | 2007-12-12 | 南京高速齿轮制造有限公司 | Support positioning device for spline shaft engaged with solar wheel shaft spline |
| CN201071882Y (en) * | 2007-08-22 | 2008-06-11 | 重庆齿轮箱有限责任公司 | Bearing mechanism of gear shaft in high power angle gear transmission |
| CN101799068A (en) * | 2010-04-15 | 2010-08-11 | 胡炜 | Vertical speed reducer and leak-proof sealing device of upper output shaft thereof |
| CN202012567U (en) * | 2011-02-28 | 2011-10-19 | 郭溪泉 | Main bearing device of main shaft of wind driven generator |
-
2013
- 2013-08-12 CN CN2013103506010A patent/CN103388629A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002264675A (en) * | 2001-03-07 | 2002-09-18 | Fuji Heavy Ind Ltd | Differential gear |
| US20050188784A1 (en) * | 2004-02-13 | 2005-09-01 | Borgwarner Inc. | Serviceable seal for transfer case |
| CN200989385Y (en) * | 2006-12-07 | 2007-12-12 | 南京高速齿轮制造有限公司 | Support positioning device for spline shaft engaged with solar wheel shaft spline |
| CN201071882Y (en) * | 2007-08-22 | 2008-06-11 | 重庆齿轮箱有限责任公司 | Bearing mechanism of gear shaft in high power angle gear transmission |
| CN101799068A (en) * | 2010-04-15 | 2010-08-11 | 胡炜 | Vertical speed reducer and leak-proof sealing device of upper output shaft thereof |
| CN202012567U (en) * | 2011-02-28 | 2011-10-19 | 郭溪泉 | Main bearing device of main shaft of wind driven generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106255832A (en) * | 2014-05-15 | 2016-12-21 | 腓特烈斯港齿轮工厂股份公司 | For locking clamping element in case the unexpected device loosened |
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Application publication date: 20131113 |