CN103307124A - High-speed rotor positioning link structure - Google Patents
High-speed rotor positioning link structure Download PDFInfo
- Publication number
- CN103307124A CN103307124A CN2013102778107A CN201310277810A CN103307124A CN 103307124 A CN103307124 A CN 103307124A CN 2013102778107 A CN2013102778107 A CN 2013102778107A CN 201310277810 A CN201310277810 A CN 201310277810A CN 103307124 A CN103307124 A CN 103307124A
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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
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000035939 shock Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 230000008859 change Effects 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
- 230000000694 effects Effects 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention provides a high-speed rotor positioning link structure which comprises a rotor spindle and a rotor, wherein the rotor spindle is sleeved with the rotor on the periphery of the rotor spindle; the external diameter of the rotor spindle comprises a first end and a second end arranged in a position opposite to that of the first end; the external diameter of the rotor spindle is in interference fit connection with the internal diameter of the rotor at the first end and the second end; external gears are arranged on the external diameter of the rotor spindle; internal gears are arranged on the internal diameter of the rotor in an opposite manner; the external gears are in internal gearing with the internal gears. The high-speed rotor positioning link structure has the following benefits: a combined structure formed by the interference fit connection and the internal gearing of the gears can better ensure the radial positioning of the rotor spindle and the rotor, and the reliability and capability of bearing impulse load of the rotor spindle and the rotor during a high-speed high-temperature high-load operating process.
Description
Technical field
The present invention relates to the aeroengine field, especially, relate to a kind of high speed rotor location connecting structure.
Background technique
Many High Rotation Speeds bindiny mechanism is set in the structure of aeroengine, and these rotating machinerys require to have high running accuracy, high stability and certain torsion pass function.In the prior art, usually adopt singly-bound or the quiet connecting structure of two key, its running accuracy is not high, and torsion pass load is little, can not satisfy aeroengine high speed, high temperature, high load requirement, this structure only adopts the structure of interference fit frictionally torsion pass, when hot environment was worked, if rotating machinery is impacted, its interference fit is loosening, inefficacy easily, to directly affect the running accuracy of axle system, reliability and the working life of reducing rotor.
Summary of the invention
The object of the invention is to provide a kind of novel high speed rotor location connecting structure, the structure that adopts the torsion pass of interference fit frictionally with the singly-bound that solves prior art or the quiet connecting structure of two key easy technical problem of loosening, inefficacy when hot environment work.
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 external diameter of rotor shaft comprises first end and the second end that is oppositely arranged with first end, the external diameter of rotor shaft and the internal diameter of rotor first end be connected end place interference fit and be connected; The external diameter of rotor shaft arranges external gear, and the internal diameter of rotor is oppositely arranged internal gear, engagement in external gear and the internal gear.
Further, leave ring cavity between first end and the second end, external gear and internal gear mesh in ring cavity.
Further, the end of rotor shaft is convexly equipped with the shaft shoulder, and 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 second end of the addendum of internal gear and rotor shaft.
Further, external gear is splined for the interior engagement with internal gear, and external gear is external splines, and internal gear is internal spline.
Further, but external gear and internal gear are the involute splines of flank centering.
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, all carburizings of 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 of the present invention location connecting structure, its rotor and rotor shaft adopt the composite structure of engagement in interference fit and the gear, can well guarantee the ability of radial location, the reliability in high-speed and high-temperature high load running process and the load that withstands shocks of rotor shaft and rotor.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.The below is with reference to figure, and the present invention is further detailed explanation.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction 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 elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Referring to 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 external diameter of rotor shaft 1 comprises first end 11 and the second end 12 that is oppositely arranged with first end 11, the internal diameter of the external diameter of rotor shaft 1 and rotor 2 first end 11 be connected end 12 place's interference fit and be connected; 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 interior engagements.The composite structure of engagement in interference fit and the gear can well guarantee the ability of radial location, the reliability in high-speed and high-temperature high load running process and the load that withstands shocks of rotor shaft 1 and rotor 2.
Referring to Fig. 2; rotor shaft 1 and rotor 2 are after first end 11 and the second end 12 interference fit; between first end 11 and the second end 12, leave ring cavity 3; internal gear 23 and external gear 13 are in ring cavity 3 interior engagements; the environmental energy of these ring cavity 3 sealings well guarantees high-precision engagement rotation; the lubricant oil that is conducive to simultaneously the sealed engagement driving component, protection of the environment.
The end of rotor shaft 1 is convexly equipped with the shaft shoulder 10, and 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 ends 11, and the diameter of axle of the first end 11 of rotor shaft 1 is convenient to assembling greater than the diameter of axle of the second end 12 of the addendum of external gear 13 and rotor shaft 1.
In conjunction with Fig. 3, in the preferred embodiments of the present invention, the interior engagement 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, but internal gear 23 and external gear 13 are the involute splines of flank centering.In the situation that flank centering, flank is transmitting torque not only, also plays simultaneously centering.Its centering mechanism is: under load, produce radial component on the involute splines, this radial component has self centering effect, and makes each spline tooth participate in simultaneously work, thereby reduced flexural stress and contact squeeze stress, guaranteed simultaneously the concentricity of rotor shaft 1 and rotor 2.
The rotor 2 of high hot state work, the phenomenon that may occur becoming flexible with the interference fit of rotor shaft 1 in long-term work or after being impacted, reliable for the splined that guarantees flank centering, internal gear 23 and external gear 13 are the spline of the multiple tooth number of little modulus, 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 of choosing backlash is 0.08mm～0.2mm.Like this, when working under rotor flower high speed, the high temperature condition, rotor 2 is less with rotor shaft 1 relative rotation, moves more reliable.
Preferably, Fit at first end 11 and the second end 12, rotor 2 and rotor shaft 1 equal case-carbonizing, 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 the interference fit annexation.
In the assembly process, guaranteeing that rotor 2 and rotor shaft 1 have under the prerequisite than high-axiality, the direction of rotor 2 along the second end 12 to first end 11 is sheathed on the rotor shaft 1, to being closely against the shaft shoulder 10, and first end 11 be connected end 12 places interference fit and connect internal gear 23 and external gear 13 interior engagements.In the preferred embodiments of the present invention, internal gear 23 and external gear 13 are engagement in the involute splines.
High speed rotor of the present invention location connecting structure, its rotor 2 and rotor shaft 1 adopt the composite structure of engagement in interference fit and the gear, can well guarantee the ability of radial location, the reliability in high-speed and high-temperature high load running process and the load that withstands shocks of rotor shaft 1 and rotor 2.
In addition, internal gear 23 and external gear 13 are splined, can obtain highi degree of accuracy assembling centering, high running accuracy and high impact resistance, especially in the environment that bears for a long time alternating shock load, this structure can effectively be avoided causing rotor 2 and the dynamic balancing of rotor shaft 1 to change because of the inefficacy of interference fit, has strengthened the stability of complete machine operation.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and 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 modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a high speed rotor is located connecting structure, and it comprises rotor shaft (1), is sheathed on the rotor (2) of described rotor shaft (1) periphery, it is characterized in that,
The external diameter of described rotor shaft (1) comprises first end (11) and the second end (12) that is oppositely arranged with described first end (11), the internal diameter of the external diameter of described rotor shaft (1) and described rotor (2) described first end (11) be connected end (12) and locate interference fit and be connected;
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), engagement in described internal gear (23) and the external gear (13).
2. high speed rotor according to claim 1 is located connecting structure, it is characterized in that, leave ring cavity (3) between described first end (11) and the second end (12), described internal gear (23) and external gear (13) mesh in described ring cavity (3).
3. high speed rotor according to claim 2 is located connecting structure, it is characterized in that, the end of described rotor shaft (1) is convexly equipped with the shaft shoulder (10), and the end face of described rotor (2) is resisted against on the described shaft shoulder (10) vertically.
4. high speed rotor according to claim 3 is located connecting structure, it is characterized in that, and 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 second end (12) of the addendum of described external gear (13) and described rotor shaft (1).
5. high speed rotor according to claim 1 is located connecting structure, it is characterized in that, described internal gear (23) is splined with the interior engagement of described external gear (13), and described internal gear (23) is internal spline, and described external gear (13) is external splines.
6. high speed rotor according to claim 5 location connecting structure is characterized in that, described internal gear (23) and external gear (13) but be the involute splines that flank is felt relieved.
7. high speed rotor according to claim 6 is located 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.
8. high speed rotor according to claim 6 is located 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.
9. high speed rotor according to claim 1 is located connecting structure, it is characterized in that, and all carburizings of 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 true CN103307124A (en) | 2013-09-18 |
| CN103307124B 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 |
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| CN (1) | CN103307124B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847686A (en) * | 2015-04-27 | 2015-08-19 | 江苏金通灵流体机械科技股份有限公司 | Torque transmission structure of impeller and main shaft of draught fan achieving high rotating speed |
| CN106133358A (en) * | 2014-04-01 | 2016-11-16 | 捷豹路虎有限公司 | Rotary shaft shaft coupling |
| 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 |
| EP3514325A1 (en) * | 2018-01-12 | 2019-07-24 | Rolls-Royce plc | Fan disc assembly |
| CN114233742A (en) * | 2021-12-16 | 2022-03-25 | 北京动力机械研究所 | Segmented shaft transmission structure based on flexible spline connection |
| US20240159302A1 (en) * | 2022-11-10 | 2024-05-16 | Zf Friedrichshafen Ag | Power Train for a Motor Vehicle |
| WO2024105254A1 (en) * | 2022-11-17 | 2024-05-23 | New H Powertrain Holding, S.L.U | Reduction gear system having hybrid assembly |
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|---|---|---|---|---|
| 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 |
| US20120079913A1 (en) * | 2009-06-10 | 2012-04-05 | Audi Ag | Assembled shaft element, particularly assembled camshaft for valve-controlled internal combustion engines |
| US20120093578A1 (en) * | 2010-10-18 | 2012-04-19 | Gamesa Innovation & Technology, S.L. | Joint between the gearbox input shaft and the rotor rotation shaft |
| 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 |
-
2013
- 2013-07-03 CN CN201310277810.7A patent/CN103307124B/en active Active
Patent Citations (5)
| 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 |
| US20120079913A1 (en) * | 2009-06-10 | 2012-04-05 | Audi Ag | Assembled shaft element, particularly assembled camshaft for valve-controlled internal combustion engines |
| US20120093578A1 (en) * | 2010-10-18 | 2012-04-19 | Gamesa Innovation & Technology, S.L. | Joint between the gearbox input shaft and the rotor rotation shaft |
| 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 |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106133358A (en) * | 2014-04-01 | 2016-11-16 | 捷豹路虎有限公司 | Rotary shaft shaft coupling |
| US9982720B2 (en) | 2014-04-01 | 2018-05-29 | Jaguar Land Rover Limited | Rotating shaft coupling |
| CN104847686A (en) * | 2015-04-27 | 2015-08-19 | 江苏金通灵流体机械科技股份有限公司 | Torque transmission structure of impeller and main shaft of draught fan achieving high rotating speed |
| 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 |
| EP3514325A1 (en) * | 2018-01-12 | 2019-07-24 | Rolls-Royce plc | Fan disc assembly |
| CN114233742A (en) * | 2021-12-16 | 2022-03-25 | 北京动力机械研究所 | Segmented shaft transmission structure based on flexible spline connection |
| US20240159302A1 (en) * | 2022-11-10 | 2024-05-16 | Zf Friedrichshafen Ag | Power Train for a Motor Vehicle |
| WO2024105254A1 (en) * | 2022-11-17 | 2024-05-23 | New H Powertrain Holding, S.L.U | Reduction gear system having hybrid assembly |
| FR3142229A1 (en) * | 2022-11-17 | 2024-05-24 | Renault | Hybrid assembly gear motor assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103307124B (en) | 2015-08-19 |
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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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