CN202971855U - Device for uniformly loading planetary gears - Google Patents
Device for uniformly loading planetary gears Download PDFInfo
- Publication number
- CN202971855U CN202971855U CN 201220577088 CN201220577088U CN202971855U CN 202971855 U CN202971855 U CN 202971855U CN 201220577088 CN201220577088 CN 201220577088 CN 201220577088 U CN201220577088 U CN 201220577088U CN 202971855 U CN202971855 U CN 202971855U
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- CN
- China
- Prior art keywords
- planet carrier
- planetary pinion
- flexible shaft
- bearing
- balancing device
- 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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Abstract
The utility model provides a device for uniformly loading planetary gears. The device comprises a planet carrier, a sun gear installed at the center of the planet carrier, and a plurality of planetary gears evenly installed along the peripheral direction of the planet carrier; and a plurality of flexible shafts are evenly arranged along the peripheral direction of the planet carrier, the flexible shafts are peripherally and cooperatively provided with elastic support covers, the outer ends of the support covers are sleeved with bearings, and the planetary gears are arranged on the bearings. According to the device for uniformly loading the planetary gears provided by the utility model, the flexible shafts are arranged on the planet carrier, and the flexible shafts are peripherally and cooperatively provided with the elastic support covers, so that when the device for uniformly loading the planetary gears is larger in load, the flexible shafts and the support covers can be elastically deformed; and therefore, the load applied to each planetary gear can be kept to be balanced. According to the device for uniformly loading the planetary gears, the properly-configured flexible shafts and support covers are set, so that the device can bear the larger load, and the durability and the reliability of the device can be improved.
Description
Technical field
The utility model relates to the gear transmission technology field, especially, relates 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 is used widely in the essential industry such as helicopter, wind-power electricity generation, metallurgy, building materials department, 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.
The model utility content
The utility model purpose 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 utility model, provide a kind of planetary pinion load-balancing device, comprised planet carrier, be arranged on 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 coordinates the resilient supporting sleeve of tool for mounting, the outer end bearing set of supporting sleeve is installed planetary pinion on 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 coordinates 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 utlity model has following beneficial effect:
1, planetary pinion load-balancing device of the present utility model is provided with flexible shaft, coordinates the resilient supporting sleeve of tool for mounting in the outer periphery of flexible shaft on 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 makes the suffered load of each planetary pinion keep in balance.
2, flexible shaft and the supporting sleeve of the utility model by suitable configurations is set, can make it bear larger load, improves durability and the reliability of this device.
3, the center-adjusting sphere bearing can make when the deflection of a small amount of occurs planetary pinion, and planetary pinion is evenly distributed along facewidth direction load.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.The below is described in further detail the utility model with reference to figure.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the planetary pinion load-balancing device of the utility model preferred embodiment; And
Fig. 2 be the utility model preferred embodiment the planetary pinion load-balancing device partly cut open schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 1 and Fig. 2, preferred embodiment of the present utility model provides a kind of planetary pinion load-balancing device, comprises planet carrier 10, is arranged on 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 coordinate 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 bearing 60.Planetary pinion load-balancing device of the present utility model is realized the even distribution of load by being arranged on the flexible shaft 40 on planet carrier 10 and coordinating the flexible supporting sleeve 50 that has of the outer periphery be arranged on 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 arranged on 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 make the suffered load of each planetary pinion 30 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 flexible shaft 40.
Bearing 60 is sleeved on 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, makes planetary pinion 30 be evenly distributed along facewidth direction load.
The inside of flexible shaft 40 coordinates installs a lock pin 70.Lock pin 70 is cylindric, and the periphery circle of lock pin 70 coordinates 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 planetary pinion load-balancing device of the present utility model, 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 supporting sleeve 50 in turn.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
Planetary pinion load-balancing device of the present utility model is provided with flexible shaft, coordinates the resilient supporting sleeve of tool for mounting in the outer periphery of flexible shaft on 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 makes the suffered load of each planetary pinion keep in balance.By flexible shaft and the supporting sleeve that suitable configurations is set, can make it bear larger load, improve durability and the reliability of this device.The center-adjusting sphere bearing can make when the deflection of a small amount of occurs planetary pinion, and planetary pinion is evenly distributed along facewidth direction load.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. planetary pinion load-balancing device comprises planet carrier (10), is arranged on 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) coordinates 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) coordinates 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 |
|---|---|---|---|
| CN 201220577088 CN202971855U (en) | 2012-11-05 | 2012-11-05 | Device for uniformly loading planetary gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577088 CN202971855U (en) | 2012-11-05 | 2012-11-05 | Device for uniformly loading planetary gears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971855U true CN202971855U (en) | 2013-06-05 |
Family
ID=48512932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220577088 Expired - Lifetime CN202971855U (en) | 2012-11-05 | 2012-11-05 | Device for uniformly loading planetary gears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937179A (en) * | 2012-11-05 | 2013-02-20 | 中国航空动力机械研究所 | Planetary gear load balancing device |
-
2012
- 2012-11-05 CN CN 201220577088 patent/CN202971855U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937179A (en) * | 2012-11-05 | 2013-02-20 | 中国航空动力机械研究所 | Planetary gear load balancing device |
| CN102937179B (en) * | 2012-11-05 | 2016-05-25 | 中国航空动力机械研究所 | Planetary gear load-balancing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |
|
| CX01 | Expiry of patent term |