CN103438199A - Bearing mechanism for planetary gear train - Google Patents
Bearing mechanism for planetary gear train Download PDFInfo
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- CN103438199A CN103438199A CN2013104062873A CN201310406287A CN103438199A CN 103438199 A CN103438199 A CN 103438199A CN 2013104062873 A CN2013104062873 A CN 2013104062873A CN 201310406287 A CN201310406287 A CN 201310406287A CN 103438199 A CN103438199 A CN 103438199A
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- load
- bearing
- planetary gear
- bearing mechanism
- planet wheel
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Abstract
The invention discloses a bearing mechanism for a planetary gear train. The bearing mechanism comprises first bearing pieces arranged on the two sides of a sun gear and a planetary gear of the planetary gear train respectively and engaged with one another and second bearing pieces connected with the first bearing pieces and capable of being elastically deformed. According to the bearing mechanism for the planetary gear train, the assembly error caused when the sun gear and the planetary gear are engaged can be effectively compensated to balance the loads of the sun gear and the planetary gear and ensure that the planetary gear is safe to use.
Description
Technical field
The present invention relates to a kind of planetary gear train, relates in particular to a kind of for carrying the load bearing mechanism of planetary gear train.
Background technique
As everyone knows, in planetary gear train, it is fixing that planet wheel is used bearing pin to install usually.In actual moving process, sun gear and planet wheel need to compensate by the deformation of bearing pin the assembly error of engagement place usually.In order to strengthen the compensation ability of bearing pin, bearing pin for example is designed to the cantilever type bearing pin, and bearing pin one end is fixed and the other end is freely unsettled.Assembly error when although the cantilever type bearing pin can compensate sun gear and planet wheel engagement, but this compensation will cause the practical distortion of bearing pin inhomogeneous, cause the suffered load skewness of sun gear and planet wheel, increased thus the danger of cantilever type bearing pin fracture.
Summary of the invention
In order to solve above-mentioned all or part of problem, the invention provides a kind of load bearing mechanism for planetary gear train, the assembly error that it occurs in the time of can effectively compensating the engagement of sun gear and planet wheel, thereby the suffered load of balanced sun gear and planet wheel, guarantee the use safety of this planetary gear train.
The invention provides a kind of load bearing mechanism for planetary gear train, it comprise the intermeshing sun gear of being located at respectively planetary gear train and planet wheel both sides the first load-bearing member with for be connected with the first load-bearing member and the second load-bearing member can resiliently deformable.
In one embodiment, the second load-bearing member is made by rigid metallic material.
In one embodiment, planet wheel is connected between the first and second load-bearing members by the hollow bearing pin.
In one embodiment, the hollow bearing pin is made by rigid material.
In one embodiment, at the two ends of hollow bearing pin, be equipped with for the hollow bearing pin being fixed on to the locating piece on the first load-bearing member or the second load-bearing member.
In one embodiment, locating piece is bolt, and bolt has the inner chamber that runs through whole.
In one embodiment, planet wheel is arranged on the hollow bearing pin by selfaligning bearing.
In one embodiment, the two ends of selfaligning bearing fix by the adjusting sleeve that is formed on the location shaft shoulder on the hollow bearing pin and be socketed on the hollow bearing pin respectively.
In one embodiment, this load bearing mechanism also comprises location unit, and location unit comprises the stop collar be located between the first and second load-bearing members, and is fixed on the fixed block on stop collar through after the described first or second load-bearing member.
According to the load bearing mechanism for planetary gear train of the present invention, the excessive situation of assembly error that it can avoid machining error, quality of materials and operating characteristic because of planet wheel and/or sun gear to cause effectively, thereby balanced sun gear and the suffered load of planet wheel, guarantee the use safety of this planetary gear train and load bearing mechanism.Assembly error when wherein, the bending deflection of hollow bearing pin can partly or wholly compensate sun gear and planet wheel engagement.In addition, the second load-bearing member can allow the hollow bearing pin that suitable moving radially occurs by the resiliently deformable of self, thus the assembly error while compensating further sun gear and planet wheel engagement.In addition, simple in structure, easy to process according to the load bearing mechanism for planetary gear train of the present invention, assembling easily, is used safety, thereby is convenient to the practice and extension application.
The accompanying drawing explanation
To the present invention, be described in more detail based on embodiment and with reference to accompanying drawing hereinafter.Wherein:
Fig. 1 has shown the structural representation according to the load bearing mechanism for planetary gear train of the present invention.
In the accompanying drawings, identical parts are used identical reference character.Accompanying drawing is not according to actual scale.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 has shown according to the load bearing mechanism for planetary gear train 50 of the present invention.This load bearing mechanism 50 comprises the first load-bearing member 5, and the second load-bearing member 4 that be connected with the first load-bearing member 5 compartments and can resiliently deformable.The second load-bearing member 4 should be elected rigid metallic material as and make, and it can be preferably high-strength metal material, makes it have rigidity and the ability of resiliently deformable preferably preferably.In order to facilitate the assembling of sun gear 1, can be provided with the circular hole 15 of the periphery that is greater than sun gear 1 at the circle centre position of the second load-bearing member 4.
According to the present invention, the intermeshing sun gear 1 of planetary gear train and planet wheel 2 are arranged between the first load-bearing member 5 and the second load-bearing member 4.Planet wheel 2 is connected between the first load-bearing member 5 and the second load-bearing member 4 by hollow bearing pin 12.Mesh preferably effect in order to guarantee that sun gear 1 and planet wheel 2 have, planet wheel 2 can be arranged on hollow bearing pin 12 by selfaligning bearing 3.Hollow bearing pin 12 comprises that integrated type radially forms the location shaft shoulder 9 thereon.Be socketed with adjusting sleeve 14 on the periphery of hollow bearing pin 12.Adjusting sleeve 14 can be adjusted the axial position on selfaligning bearing 3 hollow bearing pin 12 of living in.Wherein, selfaligning bearing 3, between the location shaft shoulder 9 and adjusting sleeve 14, can be securely fixed in it on hollow bearing pin 12 like this.An end at hollow bearing pin 12 can be provided with for it being fixed on to the locating piece 10 on the first load-bearing member 5, and the other end can be provided with for it being fixed on to the locating piece 13 on the second load-bearing member 4.
In the practical set process, the engagement place of sun gear 1 and planet wheel 2 there will be very large assembly error usually.This assembly error can be produced by machining error, quality of materials and the operating characteristic of sun gear 1 and/or planet wheel 2 usually, makes the distribution of force of the hollow bearing pin 12 that has carried planet wheel 2 extremely inhomogeneous.Mesh preferably effect in order to guarantee that sun gear 1 and planet wheel 2 have, the material of hollow bearing pin 12 is preferably rigid metallic material.
Yet, because hollow bearing pin 12 has diastrophic ability preferably, so its assembly error can compensate by the bending deflection of self 2 engagement of sun gear 1 and planet wheel the time.In order to strengthen further the diastrophic ability of hollow bearing pin 12, locating piece 10 and locating piece 13 all are preferably the bolt with hollow inner chamber.
In the foregoing description, the planet wheel 2 of only take is described in detail the load bearing mechanism for planetary gear train 50 of the present invention as example, but does not mean that it cannot install a plurality of planet wheels 2.That is to say, when this load bearing mechanism 50 is equipped with a plurality of planet wheel 2, assembly error when it also can compensate sun gear 1 whole or in part with a plurality of planet wheel 2 engagement simultaneously.
In this embodiment, this load bearing mechanism 50 also can comprise for supporting the location unit 11 of the first load-bearing member 5 and the second load-bearing member 4.Location unit 11 comprises the stop collar 7 be located between the first load-bearing member 5 and the second load-bearing member 4, and through after the first load-bearing member 5 or the second load-bearing member 4, being fixed on the fixed block 8 on stop collar 7.The two ends of stop collar 7 are configured with internal thread, and fixed block 8 elect as can with the bolt of its screw-internal thread fit.So just can be securely fixed in stop collar 7 between the first load-bearing member 5 and the second load-bearing member 4.
According to the present invention, after assembly error appears in the engagement of sun gear 1 and planet wheel 2, the assembly error in the time of at first can partly or entirely compensating by the bending deflection of hollow bearing pin 12 sun gear 1 and planet wheel 2 engagement.Secondly, the second load-bearing member 4 can allow by the resiliently deformable of self hollow bearing pin 12 that suitable moving radially occurs, thus the assembly error while compensating further sun gear 1 and planet wheel 2 engagement.
Easily understand, also can effectively compensate planet wheel 2 according to the present invention for the load bearing mechanism 50 of planetary gear train and internal gear 6(claims again gear ring) assembly error during engagement, its principle and above-described principle are basic identical.For the purpose of saving length, at this, omit.
According to the load bearing mechanism for planetary gear train 50 of the present invention, the excessive situation of assembly error that it can avoid machining error, quality of materials and operating characteristic because of planet wheel 2 and/or sun gear 1 to cause effectively, thereby balanced sun gear 1 and the suffered load of planet wheel 2, guarantee the use safety of this planetary gear train and load bearing mechanism 50.In addition, simple in structure, easy to process according to the load bearing mechanism for planetary gear train 50 of the present invention, assembling easily, is used safety, thereby is convenient to the practice and extension application.
Although invention has been described with reference to preferred embodiment, without departing from the scope of the invention, can carry out various improvement and can replace parts wherein with equivalent it.Especially, only otherwise have structural hazard, every technical characteristics of mentioning in each embodiment all can combine in any way.The present invention is not limited to disclosed specific embodiment in literary composition, but comprises all technological schemes in the scope that falls into claim.
Claims (9)
1. the load bearing mechanism for planetary gear train comprises: be located at respectively the intermeshing sun gear of described planetary gear train and planet wheel both sides the first load-bearing member with for be connected with the first load-bearing member and the second load-bearing member can resiliently deformable.
2. load bearing mechanism according to claim 1, is characterized in that, described the second load-bearing member is made by rigid metallic material.
3. according to the load bearing mechanism of claim 1 or 2, it is characterized in that, described planet wheel is connected between described the first and second load-bearing members by the hollow bearing pin.
4. load bearing mechanism according to claim 3, is characterized in that, described hollow bearing pin is made by rigid material.
5. according to the described load bearing mechanism of claim 3 or 4, it is characterized in that, be equipped with for described hollow bearing pin is fixed on to the locating piece on described the first holder or the second load-bearing member at the two ends of described hollow bearing pin.
6. load bearing mechanism according to claim 5, is characterized in that, described locating piece is bolt, and described bolt has the inner chamber that runs through whole.
7. according to the described load bearing mechanism of any one in claim 3 to 6, it is characterized in that, described planet wheel is arranged on described hollow bearing pin by selfaligning bearing.
8. load bearing mechanism according to claim 7, is characterized in that, the two ends of described selfaligning bearing fix by the adjusting sleeve that is formed on the location shaft shoulder on described hollow bearing pin and be socketed on described hollow bearing pin respectively.
9. according to the described load bearing mechanism of any one in claim 1 to 8, it is characterized in that, also comprise location unit, described location unit comprises the stop collar be located between described the first and second load-bearing members, and is fixed on the fixed block on stop collar through after the described first or second load-bearing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310406287.3A CN103438199B (en) | 2013-09-09 | 2013-09-09 | A kind of load carrier for planet circular system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310406287.3A CN103438199B (en) | 2013-09-09 | 2013-09-09 | A kind of load carrier for planet circular system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103438199A true CN103438199A (en) | 2013-12-11 |
| CN103438199B CN103438199B (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310406287.3A Active CN103438199B (en) | 2013-09-09 | 2013-09-09 | A kind of load carrier for planet circular system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2293681Y (en) * | 1997-01-29 | 1998-10-07 | 诸城市金明减速机股份有限公司 | Small planetary gear reducer |
| EP1544504A2 (en) * | 2003-12-19 | 2005-06-22 | Winergy AG | Planetary transmission, in particular for wind power plant |
| CN201531565U (en) * | 2009-04-02 | 2010-07-21 | 刘兴邦 | Speed reduction device for planetary gear |
| CN102466028A (en) * | 2010-11-11 | 2012-05-23 | 谢夫勒科技有限两合公司 | Planet transmission device |
| CN202251720U (en) * | 2011-09-08 | 2012-05-30 | 江阴克威齿轮箱制造有限公司 | Speed reducer for tractor |
| CN103104690A (en) * | 2013-02-05 | 2013-05-15 | 杭州前进齿轮箱集团股份有限公司 | Elastic support structure of planet wheel |
| TW201333347A (en) * | 2012-02-07 | 2013-08-16 | Nat Univ Chung Cheng | Zero-backlash planetary gear mechanism |
| CN203488694U (en) * | 2013-09-09 | 2014-03-19 | 株洲高精传动技术有限公司 | Bearing mechanism for planetary gear train |
-
2013
- 2013-09-09 CN CN201310406287.3A patent/CN103438199B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2293681Y (en) * | 1997-01-29 | 1998-10-07 | 诸城市金明减速机股份有限公司 | Small planetary gear reducer |
| EP1544504A2 (en) * | 2003-12-19 | 2005-06-22 | Winergy AG | Planetary transmission, in particular for wind power plant |
| CN201531565U (en) * | 2009-04-02 | 2010-07-21 | 刘兴邦 | Speed reduction device for planetary gear |
| CN102466028A (en) * | 2010-11-11 | 2012-05-23 | 谢夫勒科技有限两合公司 | Planet transmission device |
| CN202251720U (en) * | 2011-09-08 | 2012-05-30 | 江阴克威齿轮箱制造有限公司 | Speed reducer for tractor |
| TW201333347A (en) * | 2012-02-07 | 2013-08-16 | Nat Univ Chung Cheng | Zero-backlash planetary gear mechanism |
| CN103104690A (en) * | 2013-02-05 | 2013-05-15 | 杭州前进齿轮箱集团股份有限公司 | Elastic support structure of planet wheel |
| CN203488694U (en) * | 2013-09-09 | 2014-03-19 | 株洲高精传动技术有限公司 | Bearing mechanism for planetary gear train |
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| Publication number | Publication date |
|---|---|
| CN103438199B (en) | 2016-07-06 |
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Effective date of registration: 20151028 Address after: Dong Jia Duan high-tech park in Hunan province 412002 Zhuzhou city Lusong District Applicant after: Hunan Nanfang Aviation High Precision Transmission Co., Ltd. Address before: Dong Jia Duan high-tech park in Hunan province 412002 Zhuzhou city Lusong District Applicant before: Zhuzhou Gaojing Transmission Technology Co., Ltd. |
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