CN202937782U - Uniform load structure of planet gear - Google Patents
Uniform load structure of planet gear Download PDFInfo
- Publication number
- CN202937782U CN202937782U CN 201220588885 CN201220588885U CN202937782U CN 202937782 U CN202937782 U CN 202937782U CN 201220588885 CN201220588885 CN 201220588885 CN 201220588885 U CN201220588885 U CN 201220588885U CN 202937782 U CN202937782 U CN 202937782U
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- CN
- China
- Prior art keywords
- hinge pin
- bearing pin
- gear
- planetary pinion
- planet
- 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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- 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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0479—Gears or bearings on planet carriers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model discloses a uniform load structure of a planet gear. The uniform load structure comprises the planet gear, a planet carrier and a hinge pin, wherein the planet gear is rotationally installed on the hinge pin; one end of the hinge pin is installed on the planet carrier; a self-lubricated angular-contact articulated bearing is arranged between the planet gear and the hinge pin; the planet gear is rotationally installed on the hinge pin through the self-lubricated angular-contact articulated bearing; and at least one groove for releasing stress is formed in the circumference surface of the hinge pin. A lubricating oil hole is formed in the hinge pin; an oil inlet of the lubricating oil hole is positioned on the end of the hinge pin; an oil outlet is positioned in the circumference surface, on which the self-lubricated angular-contact articulated bearing is installed, of the hinge pin; and one end of the hinge pin is installed on the planet carrier in an interference manner. The uniform load structure reduces the size, the weight and the overall manufacturing cost of a gear box, realizes the uniform distribution of tooth load in the process that the planet gear is meshed with a sun gear and an inner ring gear, and avoids unbalance loading, thereby being particularly applicable to a planet transmission gear box for heavy-duty drive of wind power generation, mines and building materials.
Description
Technical field
The utility model relates to a kind of gear transmission load balancing structure, particularly relates to the distributing load transmission of planet gear structure.
Background technique
At present, planetary gear mechanism for heavily loaded planetary drive gear-boxes such as wind-power electricity generation, mine and building materials, comprise planetary pinion, planet carrier and bearing pin, described planetary pinion is arranged on described bearing pin rotationally by roller bearing, and described bearing pin is arranged on planet carrier.There is the defect of following two aspects at work in this planetary gear mechanism: on the one hand, the gear-box volume of this mechanism is large, Heavy Weight, and the operative position required precision of planetary pinion, sun gear and ring gear is higher, requirement and the assembly precision of axial modification are had relatively high expectations, and cause the complete machine manufacture cost high; On the other hand, planetary pinion with sun gear and ring gear engagement process in teeth directional load can not be uniformly distributed, cause producing unbalance loading.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of volume and weight and complete machine manufacture cost that can not only reduce gear-box, and can make planetary pinion with sun gear and ring gear engagement process in teeth directional load be uniformly distributed, avoid producing the planetary pinion load balancing structure of unbalance loading.
For solving the problems of the technologies described above, the utility model adopts a kind of like this planetary pinion load balancing structure, comprise planetary pinion, planet carrier and bearing pin, be arranged on described bearing pin described planetary gear rotation, one end of described bearing pin is arranged on described planet carrier, be provided with the selflubricating angular contact articulated bearing between described planetary pinion and bearing pin, described planetary pinion is arranged on described bearing pin rotationally by described selflubricating angular contact articulated bearing, is provided with at least one for discharging the groove of stress on the circumferential surface of described bearing pin.
In the utility model, offer oilhole on described bearing pin, the filler opening of this oilhole is positioned on the axle head of bearing pin, and the oil outlet of oilhole is positioned at bearing pin and installs on the circumferential surface of described selflubricating angular contact articulated bearing.
Bearing pin one end interference of the present utility model is arranged on described planet carrier.
After adopting said structure, due to the selflubricating angular contact articulated bearing in inner hole of planetary gear, radially installation dimension is little, make the planetary pinion tip diameter dwindle, structure is compacter, thereby reduced the volume and weight of gear-box, and can arrange more planetary pinion at planetary stage, thereby can realize many shunting gear-boxes.Because bearing pin is provided with the stress relief groove, make bearing pin have well flexible, can produce elastic bending deflection, the self-aligning that coordinates the selflubricating angular contact articulated bearing, planetary pinion can be realized the horizontal parallel skew in the stand under load situation, thereby planetary pinion with sun gear and ring gear engagement process in teeth directional load can be uniformly distributed, avoid producing unbalance loading.Simultaneously, the resiliently deformable of flexible bearing pin coordinates the aligning effect of selflubricating angular contact articulated bearing, can realize well the uniform distribution of load between a plurality of planetary pinions, in addition, this structure has also reduced the operative position required precision of planetary pinion, sun gear and ring gear and requirement and the assembly precision requirement of axial modification, thereby effectively reduces the manufacture cost of complete machine.
After the utility model is arranged oilhole on bearing pin, can realize the pressure oil jet lubrication to the selflubricating angular contact articulated bearing, can make like this longer service life of bearing, transmission performance is better.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
A kind of structural representation that Fig. 1 is the utility model planetary pinion load balancing structure.
A kind of structural representation that Fig. 2 is bearing pin in the utility model.
Embodiment
Referring to a kind of planetary pinion load balancing structure shown in Fig. 1,2, comprise planetary pinion 1, planet carrier 2 and bearing pin 3, described planetary pinion 1 is arranged on described bearing pin 3 rotationally, one end of described bearing pin 3 is arranged on described planet carrier 2, and the preferred interference of bearing pin 3 one end of the present utility model is arranged on described planet carrier 2; Be provided with selflubricating angular contact articulated bearing 4 between described planetary pinion 1 and bearing pin 3, this selflubricating angular contact articulated bearing 4 is axially fixed on bearing pin 3 by accurate locknut 5, planetary pinion 1 is arranged on the outer ring of selflubricating angular contact articulated bearing 4, described planetary pinion 1 is arranged on described bearing pin 3 rotationally by described selflubricating angular contact articulated bearing 4, is provided with at least one for discharging the groove 3-1 of stress on the circumferential surface of described bearing pin 3.
In the utility model, as shown in Figure 1, 2, a groove 3-1 preferably is set on the circumferential surface of described bearing pin 3, this groove 3-1 is positioned at an end of nearbypiston frame 2 on bearing pin 3.
In the utility model, offer oilhole 3-2 on described bearing pin 3, the filler opening of this oilhole 3-2 is positioned on the axle head of bearing pin 3, and the oil outlet of oilhole 3-2 is positioned at bearing pin 3 and installs on the circumferential surface of described selflubricating angular contact articulated bearing 4.After adopting such structure, can be forced oil jet lubrication to the selflubricating angular contact articulated bearing when work, thereby make the longer service life of bearing, transmission performance is better.In addition, as shown in Figure 1, the oil outlet of the utility model oilhole 3-2 also can be set to two, and the grease channel 2-1 in second oil outlet and described planet carrier 2 connects.
The utility model is through on probation in the wind power generation planetary uni-drive gear box, planetary pinion load balancing structure of the present utility model can guarantee all to carry between each planetary pinion well, and realize that load is uniformly distributed at teeth directional, improved the reliability of gear-box, obtained good effect.
Claims (3)
1. a planetary pinion load balancing structure, comprise planetary pinion (1), planet carrier (2) and bearing pin (3), described planetary pinion (1) is arranged on described bearing pin (3) rotationally, one end of described bearing pin (3) is arranged on described planet carrier (2), it is characterized in that: between described planetary pinion (1) and bearing pin (3), be provided with selflubricating angular contact articulated bearing (4), described planetary pinion (1) is arranged on described bearing pin (3) rotationally by described selflubricating angular contact articulated bearing (4), be provided with at least one groove (3-1) for discharging stress on the circumferential surface of described bearing pin (3).
2. planetary pinion load balancing structure according to claim 1, it is characterized in that: offer oilhole (3-2) on described bearing pin (3), the filler opening of this oilhole (3-2) is positioned on the axle head of bearing pin (3), and the oil outlet of oilhole (3-2) is positioned at bearing pin (3) and installs on the circumferential surface of described selflubricating angular contact articulated bearing (4).
3. planetary pinion load balancing structure according to claim 1 and 2, it is characterized in that: an end interference of described bearing pin (3) is arranged on described planet carrier (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220588885 CN202937782U (en) | 2012-11-09 | 2012-11-09 | Uniform load structure of planet gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220588885 CN202937782U (en) | 2012-11-09 | 2012-11-09 | Uniform load structure of planet gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937782U true CN202937782U (en) | 2013-05-15 |
Family
ID=48322020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220588885 Expired - Lifetime CN202937782U (en) | 2012-11-09 | 2012-11-09 | Uniform load structure of planet gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937782U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335012A (en) * | 2013-07-05 | 2013-10-02 | 重庆大学 | Sun gear shaft of wind power gear box |
| CN103343810A (en) * | 2013-07-05 | 2013-10-09 | 重庆大学 | Flexible planet gear transmission mechanism of wind power gear box |
| CN104565306A (en) * | 2013-10-17 | 2015-04-29 | 三江瓦力特特种车辆有限公司 | Planet gear set capable of lubricating slide |
| CN105065649A (en) * | 2015-07-15 | 2015-11-18 | 湖南南方宇航高精传动有限公司 | Flexible hinge pin lubrication oil path structure |
| CN107630981A (en) * | 2016-07-19 | 2018-01-26 | 株式会社神崎高级工机制作所 | Planetary gears |
| DE102019212264A1 (en) * | 2019-08-15 | 2021-02-18 | Zf Friedrichshafen Ag | Oil supply to a planetary plain bearing |
| CN114382664A (en) * | 2021-12-20 | 2022-04-22 | 山东中车风电有限公司 | Wind generating set casting main shaft |
-
2012
- 2012-11-09 CN CN 201220588885 patent/CN202937782U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335012A (en) * | 2013-07-05 | 2013-10-02 | 重庆大学 | Sun gear shaft of wind power gear box |
| CN103343810A (en) * | 2013-07-05 | 2013-10-09 | 重庆大学 | Flexible planet gear transmission mechanism of wind power gear box |
| CN103343810B (en) * | 2013-07-05 | 2016-04-27 | 重庆大学 | A kind of flexible planet gear drive of wind turbine gearbox |
| CN104565306A (en) * | 2013-10-17 | 2015-04-29 | 三江瓦力特特种车辆有限公司 | Planet gear set capable of lubricating slide |
| CN105065649A (en) * | 2015-07-15 | 2015-11-18 | 湖南南方宇航高精传动有限公司 | Flexible hinge pin lubrication oil path structure |
| CN107630981A (en) * | 2016-07-19 | 2018-01-26 | 株式会社神崎高级工机制作所 | Planetary gears |
| CN107630981B (en) * | 2016-07-19 | 2020-10-16 | 株式会社神崎高级工机制作所 | Planetary gear mechanism |
| DE102019212264A1 (en) * | 2019-08-15 | 2021-02-18 | Zf Friedrichshafen Ag | Oil supply to a planetary plain bearing |
| CN114382664A (en) * | 2021-12-20 | 2022-04-22 | 山东中车风电有限公司 | Wind generating set casting main shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU XINRUI GEAR SYSTEM CO., LTD. Free format text: FORMER NAME: JIANGSU SHINRI DAVID BROWN GEAR SYSTEMS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 213166 Jiangsu city of Changzhou province were Wujin high tech Industrial Development Zone, Road No. 68 Patentee after: JIANGSU XINRUI GEAR SYSTEM CO.,LTD. Address before: 213000, No. 1 West Taihu Road, Wujin Economic Development Zone, Changzhou, Jiangsu Patentee before: JIANGSU SHINRI DAVID BROWN GEAR SYSTEMS Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 213166 Jiangsu city of Changzhou province to Wujin national hi tech Industrial Development Zone, Road No. 20 Patentee after: JIANGSU XINRUI GEAR SYSTEM CO.,LTD. Address before: 213166 Jiangsu city of Changzhou province were Wujin high tech Industrial Development Zone, Road No. 68 Patentee before: JIANGSU XINRUI GEAR SYSTEM CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |