CN102937179A - Planetary gear load balancing device - Google Patents
Planetary gear load balancing device Download PDFInfo
- Publication number
- CN102937179A CN102937179A CN2012104361870A CN201210436187A CN102937179A CN 102937179 A CN102937179 A CN 102937179A CN 2012104361870 A CN2012104361870 A CN 2012104361870A CN 201210436187 A CN201210436187 A CN 201210436187A CN 102937179 A CN102937179 A CN 102937179A
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- CN
- China
- Prior art keywords
- balancing device
- planetary pinion
- flexible shaft
- planet carrier
- bearing
- 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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- 230000005540 biological transmission Effects 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
-
- 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
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/2809—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet-wheels
- F16H1/2836—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet-wheels by allowing limited movement of the planets relative to the planet carrier or by using free floating planets
Abstract
The invention provides a planetary gear load balancing device which comprises a planetary frame, sun gears installed at the center of the planetary frame and a plurality of planetary gears evenly installed around the circumference of the planetary frame. A plurality of flexible shafts are evenly arranged around the circumference of the planetary frame, elastic support sleeves are installed on the periphery of the flexible shafts in matching mode, bearings are sleeved at the outer ends of the support sleeves, and the planetary gears are installed on the bearings. The flexible shafts are arranged on the planetary frame of the planetary gear load balancing device, the elastic support sleeves are installed on the outer periphery of the flexible shafts in matching mode, and when the load of the planetary gear load balancing device is large, the flexible shafts and the support sleeves can deform elastically, so that the load born by the planetary gears is kept to be balanced. By arranging the flexible shafts and the support sleeves which are properly arranged, the planetary gear load balancing device can bear larger load, and durability and reliability of the device are improved.
Description
Technical field
The present invention relates to the gear transmission technology field, especially, relate to a kind of planetary pinion load-balancing device.
Background technique
In the gear transmission technology field, planetary type gear transmission unit has that speed ratio is large, volume is little, the bearing capacity high, and has been used widely in essential industry departments such as helicopter, wind-power electricity generation, metallurgy, building materials, particularly in the helicopter field.The transmission system of present most of helicopter mainly adopts Planetary Gear Transmission.
Existing planetary pinion load-balancing device is the mode that adopts the stretchy nylon cover to match with the axle of planet wheel, realizes that each planet wheel point load is evenly distributed.But the planetary pinion load-balancing device of this structure, in actual moving process, when the load of bearing when planetary pinion was larger, its reliability was not high.
Summary of the invention
The object of the invention is to provide a kind of planetary pinion load-balancing device, the not high technical problem of reliability when larger with solution planetary pinion bearing load.
For achieving the above object, according to an aspect of the present invention, provide a kind of planetary pinion load-balancing device, comprised planet carrier, be installed in the sun gear at planet carrier center, along a plurality of planetary pinions of circumferentially evenly installing of planet carrier; Along planet carrier circumferentially evenly be provided with many flexible shafts, the periphery of flexible shaft cooperates the resilient supporting sleeve of tool for mounting, the outer end bearing set of supporting sleeve is installed planetary pinion on the bearing.
Further, flexible shaft and planet carrier are one-body molded, and flexible shaft is hollow shaft.
Further, flexible shaft is provided with bulge loop away from the outer periphery of planet carrier; It is cylindric that supporting sleeve is, and the first end of supporting sleeve is provided with the first flange collar that engages with the bulge loop of flexible shaft, and the second end of supporting sleeve is provided with the second flange collar of the bearing inner race of engaging bearing.
Further, flexible shaft is 1 ~ 6.
Further, the inside of flexible shaft cooperates installation one lock pin.
Further, it is cylindric that lock pin is, and an end of lock pin is provided with the lock pin head that engages with planet carrier, and lock pin inside is provided with lock pin is divided into two-part baffle plate.
Further, lock pin is away from the place end of the planet carrier locking nut that is threaded, bearing inner race, supporting sleeve and the flexible shaft of the end face contact bearing of locking nut.
Further, bearing is the center-adjusting sphere bearing.
The present invention has following beneficial effect:
1, planetary pinion load-balancing device of the present invention is provided with flexible shaft, cooperates the resilient supporting sleeve of tool for mounting in the outer periphery of flexible shaft at planet carrier, when the load of this planetary pinion load-balancing device is bigger than normal, resiliently deformable all can occur in flexible shaft and supporting sleeve, thereby so that the suffered load of each planetary pinion keep in balance.
2, flexible shaft and the supporting sleeve of the present invention by suitable configurations is set can so that it bears larger load, improve durability and the reliability of this device.
3, the center-adjusting sphere bearing can be so that when the deflection of a small amount of occured planetary pinion, planetary pinion be evenly distributed along facewidth direction load.
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 structural representation of the planetary pinion load-balancing device of the preferred embodiment of the present invention; And
Fig. 2 be the preferred embodiment of the present invention the planetary pinion load-balancing device partly cut open schematic diagram.
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 and Fig. 2, the preferred embodiments of the present invention provide a kind of planetary pinion load-balancing device, comprise planet carrier 10, be installed in the sun gear 20 at planet carrier 10 centers, along a plurality of planetary pinions 30 of circumferentially evenly installing of planet carrier 10; Along planet carrier 10 circumferentially evenly be provided with many flexible shafts 40, the outer periphery of flexible shaft 40 cooperate the resilient supporting sleeve 50 of tool for mounting, the outer end of supporting sleeve 50 is bearing set 60 again, and planetary pinion 30 is installed on the bearing 60.Planetary pinion load-balancing device of the present invention is realized the even distribution of load by being installed in the flexible shaft 40 on the planet carrier 10 and cooperating the flexible supporting sleeve 50 that has of the outer periphery be installed in flexible shaft 40.
Usually, the radical of flexible shaft 40 is 2 ~ 6.Flexible shaft 40 is one-body molded with planet carrier 10, with convenient processing.Flexible shaft 40 is hollow shaft, and flexible shaft 40 is provided with bulge loop 41 away from the outer periphery of planet carrier 10.
Supporting sleeve 50 is installed in the outer end of flexible shaft 40, and when the load of bearing when this planetary pinion load-balancing device was bigger than normal, flexible shaft 40 and supporting sleeve 50 all resiliently deformable can occur, thereby so that each planetary pinion 30 suffered load keep in balance.Supporting sleeve 50 is cylindric, and the first end of supporting sleeve 50 is provided with the first flange collar 51 that engages with the bulge loop 41 of flexible shaft 40, and the second end of supporting sleeve 50 is provided with the second flange collar 52 of the bearing inner race that is fastened on bearing 60.Being fixed of the first flange collar 51 and the second flange collar 52 is axially fixed in supporting sleeve 50 on the flexible shaft 40.
Bearing 60 is sleeved on the supporting sleeve 50, and usually, selected bearing 60 is the center-adjusting sphere bearing, and will work as planetary pinion 30 when in a small amount deflection occurs, the center-adjusting sphere bearing can be regulated automatically, so that planetary pinion 30 is evenly distributed along facewidth direction load.
The inside of flexible shaft 40 cooperates installs a lock pin 70.Lock pin 70 is cylindric, and the periphery circle of lock pin 70 cooperates with interior all circles of flexible shaft 40.One end of lock pin 70 is provided with the lock pin head 71 that engages with planet carrier 10.In the present embodiment, the end of planet carrier 10 is provided with mounting groove, and lock pin head 71 is vertical cylinder and the boss that protrudes towards the cylinder outer end, and above-mentioned boss just engages with mounting groove, so that lock pin 70 and planet carrier 10 are fixed.Lock pin 70 inside are provided with lock pin 70 are divided into two-part baffle plate 72.Baffle plate 72 can be blocked in the lubricant oil of oilgear in the planetary pinion load-balancing device of the present invention, stores lubricant oil when preventing leakage of oil, so that lubricant oil passes through the aperture lubricating bearings 60 on lock pin 70, flexible shaft 40 and the supporting sleeve 50 in turn.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
Planetary pinion load-balancing device of the present invention is provided with flexible shaft, cooperates the resilient supporting sleeve of tool for mounting in the outer periphery of flexible shaft at planet carrier, when the load of this planetary pinion load-balancing device is bigger than normal, resiliently deformable all can occur in flexible shaft and supporting sleeve, thereby so that the suffered load of each planetary pinion keep in balance.By flexible shaft and the supporting sleeve that suitable configurations is set, can so that it bears larger load, improve durability and the reliability of this device.The center-adjusting sphere bearing can be so that when the deflection of a small amount of occured planetary pinion, planetary pinion be evenly distributed along facewidth direction load.
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 (8)
1. planetary pinion load-balancing device comprises planet carrier (10), is installed in the sun gear (20) at described planet carrier (10) center, along a plurality of planetary pinions (30) of circumferentially evenly installing of described planet carrier (10); It is characterized in that,
Circumferentially evenly be provided with many flexible shafts (40) along described planet carrier (10), the periphery of described flexible shaft (40) cooperates the resilient supporting sleeve of tool for mounting (50), the outer end bearing set (60) of described supporting sleeve (50), the upper described planetary pinion (30) of installing of described bearing (60).
2. planetary pinion load-balancing device according to claim 1 is characterized in that, described flexible shaft (40) is one-body molded with described planet carrier (10), and described flexible shaft (40) is hollow shaft.
3. planetary pinion load-balancing device according to claim 2 is characterized in that, described flexible shaft (40) is provided with bulge loop (41) away from the outer periphery of described planet carrier (10); Described supporting sleeve (50) is cylindric, the first end of described supporting sleeve (50) is provided with the first flange collar (51) that engages with the bulge loop (41) of described flexible shaft (40), and the second end of described supporting sleeve (50) is provided with second flange collar (52) of the bearing inner race of the described bearing of engaging (60).
4. planetary pinion load-balancing device according to claim 3 is characterized in that, described flexible shaft (40) is 2 ~ 6.
5. planetary pinion load-balancing device according to claim 3 is characterized in that, the inside of described flexible shaft (40) cooperates installs a lock pin (70).
6. planetary pinion load-balancing device according to claim 5, it is characterized in that, described lock pin (70) is cylindric, one end of described lock pin (70) is provided with the lock pin head (71) that engages with described planet carrier (10), and described lock pin (70) inside is provided with described lock pin (70) is divided into two-part baffle plate (72).
7. planetary pinion load-balancing device according to claim 6, it is characterized in that, described lock pin (70) is away from the place end of described planet carrier (10) locking nut (80) that is threaded, the bearing inner race of the described bearing of end face contact (60) of described locking nut (80), described supporting sleeve (50) and described flexible shaft (40).
8. planetary pinion load-balancing device according to claim 7 is characterized in that, described bearing (60) is the center-adjusting sphere bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210436187.0A CN102937179B (en) | 2012-11-05 | 2012-11-05 | Planetary gear load-balancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210436187.0A CN102937179B (en) | 2012-11-05 | 2012-11-05 | Planetary gear load-balancing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102937179A true CN102937179A (en) | 2013-02-20 |
| CN102937179B CN102937179B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210436187.0A Active CN102937179B (en) | 2012-11-05 | 2012-11-05 | Planetary gear load-balancing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102937179B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017219614A1 (en) * | 2017-11-06 | 2019-05-09 | Zf Friedrichshafen Ag | Planet carrier with flexible bolts |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2517022A1 (en) * | 1974-04-18 | 1975-11-06 | Vickers Ltd | GEAR ASSISTANCE, E.g. FOR PLANETARY GEARS |
| FR2273187A1 (en) * | 1974-05-29 | 1975-12-26 | Vickers Ltd | |
| EP0003894B1 (en) * | 1978-02-16 | 1982-01-20 | Hicks Transmissions Limited | Gear mounting |
| EP0093584A1 (en) * | 1982-05-01 | 1983-11-09 | Hicks Transmissions Limited | Gear mounting |
| JP2009503415A (en) * | 2005-08-01 | 2009-01-29 | ザ ティムケン カンパニー | Planetary gear system with flex pins |
| WO2009102853A1 (en) * | 2008-02-13 | 2009-08-20 | The Timken Company | Epicyclic gear system having two arrays of pinions mounted on flexpins with compensation for carrier distortion |
| KR20100078747A (en) * | 2008-12-30 | 2010-07-08 | 주식회사 효성 | Planet gear assembly for planet gear system |
| CN201610937U (en) * | 2009-12-30 | 2010-10-20 | 南京高精重载齿轮制造有限公司 | Cantilever-type elastic pin shaft device |
| CN101865279A (en) * | 2010-06-02 | 2010-10-20 | 重庆齿轮箱有限责任公司 | Mechanism for balancing load of planetary gear by flexible pin shaft |
| CN101893061A (en) * | 2009-05-20 | 2010-11-24 | 汉森传动系统国际公司 | Planetary gear transmission unit |
| US20110039654A1 (en) * | 2008-04-30 | 2011-02-17 | The Timken Company | Epicyclic Gear System With Flexpins |
| CN202971855U (en) * | 2012-11-05 | 2013-06-05 | 中国航空动力机械研究所 | Device for uniformly loading planetary gears |
-
2012
- 2012-11-05 CN CN201210436187.0A patent/CN102937179B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2517022A1 (en) * | 1974-04-18 | 1975-11-06 | Vickers Ltd | GEAR ASSISTANCE, E.g. FOR PLANETARY GEARS |
| FR2273187A1 (en) * | 1974-05-29 | 1975-12-26 | Vickers Ltd | |
| EP0003894B1 (en) * | 1978-02-16 | 1982-01-20 | Hicks Transmissions Limited | Gear mounting |
| EP0093584A1 (en) * | 1982-05-01 | 1983-11-09 | Hicks Transmissions Limited | Gear mounting |
| JP2009503415A (en) * | 2005-08-01 | 2009-01-29 | ザ ティムケン カンパニー | Planetary gear system with flex pins |
| WO2009102853A1 (en) * | 2008-02-13 | 2009-08-20 | The Timken Company | Epicyclic gear system having two arrays of pinions mounted on flexpins with compensation for carrier distortion |
| US20110039654A1 (en) * | 2008-04-30 | 2011-02-17 | The Timken Company | Epicyclic Gear System With Flexpins |
| KR20100078747A (en) * | 2008-12-30 | 2010-07-08 | 주식회사 효성 | Planet gear assembly for planet gear system |
| CN101893061A (en) * | 2009-05-20 | 2010-11-24 | 汉森传动系统国际公司 | Planetary gear transmission unit |
| CN201610937U (en) * | 2009-12-30 | 2010-10-20 | 南京高精重载齿轮制造有限公司 | Cantilever-type elastic pin shaft device |
| CN101865279A (en) * | 2010-06-02 | 2010-10-20 | 重庆齿轮箱有限责任公司 | Mechanism for balancing load of planetary gear by flexible pin shaft |
| CN202971855U (en) * | 2012-11-05 | 2013-06-05 | 中国航空动力机械研究所 | Device for uniformly loading planetary gears |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017219614A1 (en) * | 2017-11-06 | 2019-05-09 | Zf Friedrichshafen Ag | Planet carrier with flexible bolts |
| US11073193B2 (en) | 2017-11-06 | 2021-07-27 | Zf Friedrichshafen Ag | Planetary carrier having flexible bolts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102937179B (en) | 2016-05-25 |
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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: Zhong Guo Address before: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee before: CHINA AVIATION POWER MACHINERY INSTITUTE Country or region before: Zhong Guo |