CN203395035U - Bearing arrangement structure and speed reducer - Google Patents
Bearing arrangement structure and speed reducer Download PDFInfo
- Publication number
- CN203395035U CN203395035U CN201320489731.8U CN201320489731U CN203395035U CN 203395035 U CN203395035 U CN 203395035U CN 201320489731 U CN201320489731 U CN 201320489731U CN 203395035 U CN203395035 U CN 203395035U
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- CN
- 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.)
- Expired - Lifetime
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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)
- General Details Of Gearings (AREA)
Abstract
The utility model discloses a bearing arrangement structure and a speed reducer. The bearing arrangement structure comprises a radial contact bearing and a bearing block, wherein the radial contact bearing is arranged on a first supporting point of a high-speed shaft; the bearing block is arranged on a second supporting point of the high-speed shaft and consists of two angular contact radial bearings which are arranged face to face; inner rings and outer rings of both the angular contact radial bearings are fixedly locked. During work of the structure, the radial contact bearing is mainly used for bearing radial force, and the bearing block is mainly used for bearing radial force. According to the bearing arrangement structure, since the radial force born by the angular contact radial bearings is reduced, the radial component force produced by the radial force in the angular contact radial bearings is reduced to finally achieve the purpose of reducing an axial load. Thus, through cooperative use of the three bearings, both a relatively large axial load and a relatively large radial load can be born, the situation of bearing wear can be effectively avoided, and the long-term stable operation of the speed reducer can be guaranteed.
Description
Technical field
The utility model relates to 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 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 transmission shaft rigidity is large, the good occasion of two bearings hole coaxality, during installation, need to adjust play.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, thereby bearing is inner, can produce an axial thrust load, now need another bearing to bear this axial thrust load, in addition balance.
In small-power rectangular axis speed reducer, in the fixed axle sleeve that high speed shaft is positioned, adopt the back-to-back installation of a pair of tapered roller bearing, jointly bear thrust load and radial load.Refer to the layout schematic diagram of a pair of tapered roller bearing in small-power speed reducer high speed shaft place shown in Fig. 1, wherein high speed shaft 2 is set in casing 1, and supported and location by two tapered roller bearings 3 that lay respectively at casing 1 inner two ends, 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 arrange tapered roller bearing according to the bearing arrangement mode in above-mentioned small-power rectangular axis speed reducer, 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 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 those skilled in the art's technical problems urgently to be resolved hurrily.
Model utility content
In view of this, the utility model 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 utility model 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 being arranged on described high speed shaft the first fulcrum, and be arranged on the 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.
, on the high speed shaft of described speed reducer, be provided with above described bearing arrangement.
Preferably, above-mentioned speed reducer is 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.
The bearing arrangement that the utility model provides 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 the bearing pack being comprised of two centripetal angular contact bearings is used for bearing whole axial forces and the radial force of fraction.Compared with prior art, in the bearing arrangement providing in the utility model embodiment, due to the radial force that has reduced centripetal angular contact bearing and bear, thereby cut down the axial thrust load producing due to this radial force in centripetal angular contact bearing, finally reach the object of the thrust load of cutting down centripetal angular contact bearing, effectively avoided the generation of bearing wear situation.Thereby the bearing arrangement visible, the utility model provides, utilizes 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.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of 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 utility model embodiment.
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 utility model 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 utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 2, the bearing arrangement schematic diagram at the high-power gear reducer high speed shaft place that Fig. 2 provides for the utility model embodiment.
The bearing arrangement that the utility model embodiment provides, is arranged on two fulcrums of speed reducer high speed shaft, goes for 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 installing face-to-face, 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 the bearing pack being comprised of two centripetal angular contact bearings is used for bearing whole axial forces and the radial force of fraction.Compared with prior art, in the bearing arrangement providing in the utility model embodiment, due to the radial force that has reduced centripetal angular contact bearing and bear, thereby cut down the axial thrust load producing due to this radial force in centripetal angular contact bearing, finally reach the object of the thrust load of cutting down centripetal angular contact bearing, effectively avoided the generation of bearing wear situation.Thereby visible, to provide in the utility model embodiment bearing arrangement, utilizes 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 installation ，Qi outer ring is locked with end cap 7 clampings that are affixed on casing by the step on speed reducer casing 1 respectively face-to-face for two tapered roller bearings 3, 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 hold is intelligiblely, the radial contact bearing adopting in the utility model 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 adopting in the utility model can also be angular contact ball bearing.Therefore, the utility model is to this and be not specifically limited.
The utility model 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 rectangular axis speed reducer, its high speed shaft is bevel gear shaft, on this bevel gear shaft for the first fulcrum of selfaligning roller bearing 4 being installed near bevel gear one end of bevel gear shaft, on this bevel gear shaft for the second fulcrum that bearing pack is installed relatively away from bevel gear one end.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To these embodiments' multiple modification, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model 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. a bearing arrangement, be arranged on two fulcrums of speed reducer high speed shaft, it is characterized in that, comprise the radial contact bearing being arranged on described high speed shaft the first fulcrum, and be arranged on the 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 the bearing arrangement as described in claim 1-3 any one on the high speed shaft of described speed reducer (2).
5. speed reducer according to claim 4, is characterized in that, described speed reducer is 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 |
|---|---|---|---|
| CN201320489731.8U CN203395035U (en) | 2013-08-12 | 2013-08-12 | Bearing arrangement structure and speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320489731.8U CN203395035U (en) | 2013-08-12 | 2013-08-12 | Bearing arrangement structure and speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395035U true CN203395035U (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320489731.8U Expired - Lifetime CN203395035U (en) | 2013-08-12 | 2013-08-12 | Bearing arrangement structure and speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395035U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366381A (en) * | 2015-11-19 | 2016-03-02 | 鞍钢集团耐火材料公司 | Catch wheel structure and method for preventing center shaft sleeve of bevel gear from being abraded |
| 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 |
| CN106812781A (en) * | 2015-12-01 | 2017-06-09 | 衡阳双雁运输机械有限公司 | A kind of main shaft assembly |
-
2013
- 2013-08-12 CN CN201320489731.8U patent/CN203395035U/en not_active Expired - Lifetime
Cited By (4)
| 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 |
| CN105366381A (en) * | 2015-11-19 | 2016-03-02 | 鞍钢集团耐火材料公司 | Catch wheel structure and method for preventing center shaft sleeve of bevel gear from being abraded |
| CN105366381B (en) * | 2015-11-19 | 2017-08-22 | 鞍钢集团耐火材料公司 | A kind of wheel stopping structure and method that prevent conical gear central axle sleeve from wearing and tearing |
| CN106812781A (en) * | 2015-12-01 | 2017-06-09 | 衡阳双雁运输机械有限公司 | A kind of main shaft assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Bearing arrangement structure as well as speed reducer Effective date of registration: 20150216 Granted publication date: 20140115 Pledgee: Bank of Tianjin Limited by Share Ltd. Beichen branch Pledgor: WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: 2015120000012 |
|
| C56 | Change in the name or address of the patentee |
Owner name: WORLD TRANSMISSION TECHNOLOGY (TIANJIN) CO., LTD. Free format text: FORMER NAME: WODE (TIANJIN) TRANSMISSION CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 300409, 82, hi tech Avenue, Beichen Science Park, Tianjin Patentee after: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Address before: 300409, 82, hi tech Avenue, Beichen Science Park, Tianjin Patentee before: WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220608 Granted publication date: 20140115 Pledgee: Bank of Tianjin Limited by Share Ltd. Beichen branch Pledgor: WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: 2015120000012 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |