CN103307124B - High speed rotor location connecting structure - Google Patents
High speed rotor location connecting structure Download PDFInfo
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- CN103307124B CN103307124B CN201310277810.7A CN201310277810A CN103307124B CN 103307124 B CN103307124 B CN 103307124B CN 201310277810 A CN201310277810 A CN 201310277810A CN 103307124 B CN103307124 B CN 103307124B
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- rotor shaft
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- 238000005255 carburizing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 230000035939 shock Effects 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention provides a kind of high speed rotor location connecting structure, comprise rotor shaft, be sheathed on the rotor of rotor shaft periphery.Wherein, the second end that the external diameter of rotor shaft comprises first end and is oppositely arranged with first end, the external diameter of rotor shaft is connected at first end and the second end place interference fit with the internal diameter of rotor: the external diameter of rotor shaft arranges external gear, the internal diameter of rotor is oppositely arranged internal gear, external gear and internal gear internal messing.Beneficial effect of the present invention is: the composite structure of interference fit and gear internal messing, well can ensure the ability of the radial location of rotor shaft and rotor, reliability in high-speed and high-temperature high load running process and the load that withstands shocks.
Description
Technical field
The present invention relates to aeroengine field, especially, relate to a kind of high speed rotor location connecting structure.
Background technique
Many High Rotation Speed bindiny mechanisms are set in the structure of aeroengine, and these rotating machinerys require to have high running accuracy, high stability and certain torsion pass function.In prior art, usual employing singly-bound or the quiet connecting structure of double bond, its running accuracy is not high, and torsion pass load is little, can not meet aeroengine high speed, high temperature, high load requirement, this structure only adopts the structure of interference fit frictionally torsion pass, when hot environment works, if rotating machinery is impacted, its interference fit easily loosens, inefficacy, the running accuracy of axle system be will directly affect, reliability and the working life of rotor reduced.
Summary of the invention
The object of the invention is to provide a kind of novel high speed rotor to locate connecting structure, the technical problem adopting the structure of interference fit frictionally torsion pass easily to loosen when hot environment works, lost efficacy with the quiet connecting structure of the singly-bound or double bond that solve prior art.
For achieving the above object, the invention provides a kind of high speed rotor location connecting structure, it comprises rotor shaft, is sheathed on the rotor of rotor shaft periphery.Wherein, the second end that the external diameter of rotor shaft comprises first end and is oppositely arranged with first end, the external diameter of rotor shaft is connected at first end and the second end place interference fit with the internal diameter of rotor; The external diameter of rotor shaft arranges external gear, and the internal diameter of rotor is oppositely arranged internal gear, external gear and internal gear internal messing.
Further, leave ring cavity between first end and the second end, external gear and internal gear are at ring cavity internal messing.
Further, the end projection shaft shoulder of rotor shaft, the end face of rotor is resisted against on the shaft shoulder vertically.
Further, the shaft shoulder is near first end, and the diameter of axle of the first end of rotor shaft is greater than the diameter of axle of the addendum of internal gear and the second end of rotor shaft.
Further, external gear is be splined with the internal messing of internal gear, and external gear is external splines, and internal gear is internal spline.
Further, external gear and internal gear be can flank centering involute splines.
Further, the modulus of external gear and internal gear is 0.6mm or 0.8mm or 1.1mm or 1.28mm.
Further, the span of the backlash of the splined of external gear and internal gear is 0.08mm ~ 0.2mm.
Further, the equal carburizing in surface of the Fit of rotor shaft and rotor, the thickness of carburizing is 0.3mm ~ 0.6mm.
The present invention has following beneficial effect: high speed rotor location of the present invention connecting structure, its rotor and rotor shaft adopt the composite structure of interference fit and gear internal messing, well can ensure the ability of the radial location of rotor shaft and rotor, reliability in high-speed and high-temperature high load running process and the load that withstands shocks.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the generalized section of the high speed rotor location connecting structure of the preferred embodiment of the present invention;
Fig. 2 is the structural representation of the rotor shaft of the preferred embodiment of the present invention; And
Fig. 3 is the external gear of the preferred embodiment of the present invention and the mesh schematic representation of internal gear.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
See Fig. 1, the invention provides a kind of high speed rotor location connecting structure, it comprises rotor shaft 1, is sheathed on the rotor 2 of rotor shaft 1 periphery.Wherein, the second end 12 that the external diameter of rotor shaft 1 comprises first end 11 and is oppositely arranged with first end 11, the external diameter of rotor shaft 1 is connected at first end 11 and the second end 12 place interference fit with the internal diameter of rotor 2; The external diameter of rotor shaft 1 arranges external gear 13, and the internal diameter of rotor 2 is oppositely arranged internal gear 23, internal gear 23 and external gear 13 internal messing.The composite structure of interference fit and gear internal messing, well can ensure the ability of the radial location of rotor shaft 1 and rotor 2, reliability in high-speed and high-temperature high load running process and the load that withstands shocks.
See Fig. 2; rotor shaft 1 and rotor 2 are after first end 11 and the second end 12 interference fit; ring cavity 3 is left between first end 11 and the second end 12; internal gear 23 and external gear 13 are at ring cavity 3 internal messing; the environmental energy that this ring cavity 3 is closed well ensures that high-precision engagement rotates; be conducive to the lubricant oil of sealed engagement driving component, protection of the environment simultaneously.
The end projection shaft shoulder 10 of rotor shaft 1, the end face of rotor 2 is resisted against on the shaft shoulder 10 vertically, realizes the axial limiting of rotor 2 on rotor shaft 1, increases the reliability of rotor shaft 1 in running.Wherein, the shaft shoulder 10 is near first end 11, and the diameter of axle of the first end 11 of rotor shaft 1 is greater than the diameter of axle of the addendum of external gear 13 and the second end 12 of rotor shaft 1, is convenient to assembling.
Composition graphs 3, in the preferred embodiments of the present invention, the internal messing of internal gear 23 and external gear 13 is splined, and wherein, internal gear 23 is internal spline, and external gear 13 is external splines.Preferably, internal gear 23 and external gear 13 be can flank centering involute splines.When flank is felt relieved, flank is transmitting torque not only, also plays centering simultaneously.Its centering mechanism is: under load effect, involute splines produces radial component, and this radial component has self centering effect, and makes each spline tooth participate in work simultaneously, thus decrease flexural stress and contact squeeze stress, ensure that the concentricity of rotor shaft 1 and rotor 2 simultaneously.
The rotor 2 of high Warm status work, in the phenomenon that long-term work or may occur with the interference fit of rotor shaft 1 after being impacted loosens, reliable in order to ensure the splined that flank is felt relieved, internal gear 23 and external gear 13 are the spline of the multiple tooth number of low module, the spline fitted of namely little backlash; Under identical standard pitch circle, preferably, choose modulus m=0.6mm or 0.8mm or 1.1mm or 1.28mm, adopt the spline fitted of little backlash, the scope choosing backlash is 0.08mm ~ 0.2mm.Like this, when working under rotor flower high speed, high temperature condition, rotor 2 is less with rotor shaft 1 relative rotation, runs more reliable.
Preferably, at the Fit of first end 11 and the second end 12, rotor 2 and rotor shaft 1 all case-carbonizings, the scope of its carburized layer thickness is 0.3mm ~ 0.6mm, strengthen the surface abrasion resistance of rotor 2 and rotor shaft 1, prevent surface excessive wear in unloading process of rotor 2 and rotor shaft 1, and then affect interference fit annexation.
In assembly process, ensureing that under the prerequisite that rotor 2 and rotor shaft 1 have compared with high-axiality, rotor 2 is sheathed on rotor shaft 1, to being closely against the shaft shoulder 10 along the direction of the second end 12 to first end 11, and be connected with the second end 12 place interference fit at first end 11, internal gear 23 and external gear 13 internal messing.In the preferred embodiments of the present invention, internal gear 23 and external gear 13 are involute splines internal messing.
Rotor 2 and rotor shaft 1 adopt flank centering involute splines and diameter of axle interference fit combination coupling mechanism can obtain highi degree of accuracy assembling centering, high running accuracy and high impact resistance, especially for rotor shaft 1 structure having high-speed balancing requirement, impacted or Long-Time Service in the environment that temperature variation is large, the change of requirement for dynamic balance can not be caused because the inefficacy of rotor shaft 1 interference fit causes rotor 2 and rotor shaft 1 to have relative rotation.Meanwhile, spline flank profil is involute, and can process with manufacturing the method for gear, manufacturability is better, easily obtains higher accuracy of manufacturing, has the features such as self-alignment, bearing capacity are strong, long service life.
High speed rotor location of the present invention connecting structure, its rotor 2 and rotor shaft 1 adopt the composite structure of interference fit and gear internal messing, well can ensure the ability of the radial location of rotor shaft 1 and rotor 2, reliability in high-speed and high-temperature high load running process and the load that withstands shocks.
In addition, internal gear 23 and external gear 13 are splined, highi degree of accuracy assembling centering, high running accuracy and high impact resistance can be obtained, especially bearing in the environment of alternating shock load for a long time, this structure can effectively avoid the inefficacy because of interference fit to cause rotor 2 to change with the dynamic balancing of rotor shaft 1, enhances the stability that complete machine runs.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a high speed rotor location connecting structure, it comprises rotor shaft (1), is sheathed on the rotor (2) of described rotor shaft (1) periphery, it is characterized in that,
The second end (12) that the external diameter of described rotor shaft (1) comprises first end (11) and is oppositely arranged with described first end (11), the external diameter of described rotor shaft (1) is connected at described first end (11) and the second end (12) place interference fit with the internal diameter of described rotor (2);
The external diameter of described rotor shaft (1) arranges external gear (13), and the internal diameter of described rotor (2) is oppositely arranged internal gear (23), described internal gear (23) and external gear (13) internal messing;
Leave ring cavity (3) between described first end (11) and the second end (12), described internal gear (23) and external gear (13) are at described ring cavity (3) internal messing.
2. high speed rotor location according to claim 1 connecting structure, it is characterized in that, the end projection shaft shoulder (10) of described rotor shaft (1), the end face of described rotor (2) is resisted against on the described shaft shoulder (10) vertically.
3. high speed rotor location according to claim 2 connecting structure, is characterized in that, the close described first end (11) of the described shaft shoulder (10),
The diameter of axle of the first end (11) of described rotor shaft (1) is greater than the diameter of axle of the addendum of described external gear (13) and second end (12) of described rotor shaft (1).
4. high speed rotor location according to claim 1 connecting structure, it is characterized in that, described internal gear (23) is splined with the internal messing of described external gear (13), described internal gear (23) is internal spline, and described external gear (13) is external splines.
5. high speed rotor according to claim 4 location connecting structure, is characterized in that, described internal gear (23) and external gear (13) are can the flank involute splines of feeling relieved.
6. high speed rotor location according to claim 5 connecting structure, it is characterized in that, the modulus of described internal gear (23) and external gear (13) is 0.6mm or 0.8mm or 1.1mm or 1.28mm.
7. high speed rotor location according to claim 5 connecting structure, it is characterized in that, the span of the backlash of the splined of described internal gear (23) and external gear (13) is 0.08mm ~ 0.2mm.
8. high speed rotor location according to claim 1 connecting structure, it is characterized in that, the equal carburizing in surface of the Fit of described rotor shaft (1) and rotor (2), the thickness of described carburizing is 0.3mm ~ 0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277810.7A CN103307124B (en) | 2013-07-03 | 2013-07-03 | High speed rotor location connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277810.7A CN103307124B (en) | 2013-07-03 | 2013-07-03 | High speed rotor location connecting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103307124A CN103307124A (en) | 2013-09-18 |
| CN103307124B true CN103307124B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310277810.7A Active CN103307124B (en) | 2013-07-03 | 2013-07-03 | High speed rotor location connecting structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN103307124B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2524758B (en) | 2014-04-01 | 2016-12-14 | Jaguar Land Rover Ltd | Rotating shaft coupling |
| CN104847686B (en) * | 2015-04-27 | 2018-02-27 | 江苏金通灵流体机械科技股份有限公司 | A kind of torque transfer arrangement of high rotating speed draught fan impeller and main shaft |
| CN106567918A (en) * | 2016-10-20 | 2017-04-19 | 安徽江淮汽车集团股份有限公司 | Gear, machining method thereof, gear shaft, gear transmission structure and assembling method |
| WO2018218530A1 (en) * | 2017-05-31 | 2018-12-06 | 深圳智慧能源技术有限公司 | Centering and twist lock combination mechanism for multistage high-speed steam turbine |
| GB201800513D0 (en) * | 2018-01-12 | 2018-02-28 | Rolls Royce Plc | Fan disc assembly |
| CN114233742B (en) * | 2021-12-16 | 2023-03-24 | 北京动力机械研究所 | Segmented shaft transmission structure based on flexible spline connection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315083A (en) * | 2007-05-30 | 2008-12-03 | 诺沃皮尼奥内有限公司 | Anchorage system for the rotors of a rotating fluid machine |
| EP2189674A1 (en) * | 2007-09-18 | 2010-05-26 | NTN Corporation | Bearing device for wheel |
| CN202997825U (en) * | 2012-10-26 | 2013-06-12 | 温州跃卡汽车电器有限公司 | Combination of worm and shaft of hanging-basket motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009024455A1 (en) * | 2009-06-10 | 2011-01-05 | Audi Ag | Built-shaft element, in particular built camshaft for valve-controlled internal combustion engines |
| ES2387439B1 (en) * | 2010-10-18 | 2013-07-26 | Gamesa Innovation & Technology, S.L. | UNION BETWEEN THE MULTIPLIER INPUT SHAFT AND ROTOR SPINNING SHAFT. |
-
2013
- 2013-07-03 CN CN201310277810.7A patent/CN103307124B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315083A (en) * | 2007-05-30 | 2008-12-03 | 诺沃皮尼奥内有限公司 | Anchorage system for the rotors of a rotating fluid machine |
| EP2189674A1 (en) * | 2007-09-18 | 2010-05-26 | NTN Corporation | Bearing device for wheel |
| CN202997825U (en) * | 2012-10-26 | 2013-06-12 | 温州跃卡汽车电器有限公司 | Combination of worm and shaft of hanging-basket motor |
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| Publication number | Publication date |
|---|---|
| CN103307124A (en) | 2013-09-18 |
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Address after: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee after: AECC HUNAN AVIATION POWERPLANT Research Institute Country or region after: China Address before: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee before: CHINA AVIATION POWER MACHINERY INSTITUTE Country or region before: China |
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