CN102705494A - Self-lubricating device of planetary gear pair - Google Patents
Self-lubricating device of planetary gear pair Download PDFInfo
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- CN102705494A CN102705494A CN201210187487XA CN201210187487A CN102705494A CN 102705494 A CN102705494 A CN 102705494A CN 201210187487X A CN201210187487X A CN 201210187487XA CN 201210187487 A CN201210187487 A CN 201210187487A CN 102705494 A CN102705494 A CN 102705494A
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Abstract
The invention provides a self-lubricating device of a planetary gear pair. The self-lubricating device comprises a planetary carrier, a planetary wheel, a planetary shaft, a planetary bearing, a sun wheel, an oil collection shovel and an oil storage tank; the oil collection shovel is fixedly mounted at the end part of the outer side of a planetary carrier rib; the oil storage tank has a square box-shaped structure; the bottom surface of the oil storage tank is fixedly mounted at the inner side of the planetary carrier rib; an oil delivery opening is arranged on one side surface; lubricating oil holes are arranged on a top surface and a side surface opposite to the oil delivery opening; and the oil delivery opening and the oil collection shovel are positioned on the same side of the planetary carrier. By using the self-lubricating device, the lubrication of the planetary wheel and a gear pair of the sun wheel can be realized effectively; adequate lubricating oil is particularly guaranteed to exist on the sun wheel; through the engagement of the sun wheel and the planetary wheel, the engagement lubrication of the planetary wheel and an inner gear ring gear pair is also improved to a quite large extent; the self-lubricating device of the planetary gear pair, which is provided by the invention, is simple in structure and high in reliability, can be realized only by carrying out quite small modification on a conventional design, and is extremely easy to apply and popularize.
Description
Technical field
The invention belongs to gear-box lubricating fitting field, be specifically related to the secondary self-lubricating device of a kind of planetary pinion.
Background technique
The planetary structure gear pair is lubricated in the existing technology mainly contains following several kinds: flooding system lubrication, stir oily splash lubrication and pressure lubrication; The ring gear lower portion divides the gear teeth for a long time below liquid level in the flooding system lubrication mode; Planet wheel periodically runs to the below and realizes immersion oil, in operation process, takes lubricant oil to ring gear other positions; Stir planet wheel in the oily splash lubrication mode and in the rotation process, will stir lubricated being thrown on sun gear and the ring gear that oil is adhered to; The ring gear one-sided or bilateral oil spout in top in the pressure lubrication mode realize the lubricated of planet, ring gear gear pair, but the lubricant oil utilization ratio of being sprayed is lower.
At present, provide lubricated difficult, considered this point when having only the minority product specification planetary pinion and sun gear engaging tooth wheel set.Offer oil supply hole or fuel feeding annular groove such as wind power generation gear case is common in planet frame end portion or endoporus, on planet carrier, process oil supply gallery, on muscle, offer oilhole and give planetary pinion and solar wheeling tooth wheel set fuel feeding.But because of planet carrier is in turn state; There is relative movement planet carrier fuel feeding position; The junction inevitably has oil leak and pressure loss, and such pressure lubrication usually will be simultaneously for planetary bearing provides lubricant oil, and this has just proposed high requirement to lubrication system.Because complex structure all has higher requirements to designing and calculating and processing, is difficult to accurately check the actual charge oil pressure and the lubricants capacity of each lubricating point.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned existing technology, provide a kind of simple in structure and can guarantee the secondary self-lubricating device of planetary pinion of the secondary engagement of planetary pinion fuel feeding.
The present invention realizes through following technological scheme: the self-lubricating device that a kind of planetary pinion is secondary; Comprise planet carrier, planet wheel, planet axis, planetary bearing and sun gear; Planet axis is fixedly mounted on the planet carrier, and planet wheel is installed on the planet axis through planetary bearing; Sun gear and planet wheel engagement; It is characterized in that the secondary self-lubricating device of said planetary pinion also comprises an oil-collecting shovel and an oil storage tank, the oil-collecting shovel is fixedly mounted on the outboard end of planet carrier muscle, and oil storage tank is a square-box shape structure, and its bottom surface is fixedly mounted on the inboard of planet carrier muscle; A side is provided with the oil transportation mouth; End face and be provided with a plurality of oilholes with the relative side of said oil transportation mouth, said oil transportation mouth and oil-collecting shovel are positioned at the homonymy of planet carrier.
Further, the oil reserve of oil storage tank is greater than the shovel oil mass of oil-collecting shovel.
Further, the cross section Cheng ⊿ shape of said oil-collecting shovel.
Further, the oil-collecting shovel is fixedly connected with a mounting plate, and said mounting plate is installed in the inboard of planet carrier muscle through screw.
Further, a plurality of screw of the underrun of oil storage tank are installed in the inboard of planet carrier muscle, towards sun gear.
The secondary self-lubricating device of planetary pinion of the present invention shovels and an oil storage tank through increasing by an oil-collecting, has realized oil-collecting shovel shovel oil, and oil storage tank compiles also fuel feeding of oil.When gear-box turned round, planet carrier continued to rotate, and every oil-collecting shovel all can run to the below successively and get into lubricant oil, and planet carrier whenever circles, and the oil-collecting shovel just can shovel once oil, and lubricant oil collects in the oil storage tank along with the rotation of planet carrier; The lubricant oil that throws away in the planet wheel rotation process also has part and gets into oil storage tank attached on the planet carrier muscle.The lubricant oil that stores in the oil storage tank passes through oilhole to planet wheel, solar wheeling tooth wheel set fuel feeding.The lubricant oil of larger proportion runs to the upper end at oil storage tank and provides through the oil transportation mouth, thereby sun gear can continue to obtain sufficient lubricating oil, through the engagement of sun gear and planet wheel, also has sufficient lubricating oil on the planet wheel.Planet wheel is through taking lubricant oil on the ring gear to the engagement of ring gear, and ring gear also can obtain well lubricated.
Compared with prior art; The present invention can effectively realize lubricating planet wheel, solar wheeling tooth wheel set; Especially having guaranteed has sufficient lubricating oil on the sun gear, through the engagement of sun gear and planet wheel, the engagement that also largely improves planet wheel and ring gear gear pair is lubricated; When oil level was higher, the present invention can also directly utilize the muscle of planet carrier as the oily device of shovel; When oil level was low, through oil-collecting shovel shovel oil, lubricants capacity can be guaranteed.The secondary self-lubricating device of planetary pinion of the present invention is simple in structure, reliability is high, only needs in existing design, carry out very little change, can realize, is highly susceptible to using and promoting.
Description of drawings
Fig. 1 is the cross-sectional view of the secondary self-lubricating device of planetary pinion according to the invention;
Fig. 2 is the structural drawing of planet carrier 1;
Fig. 3 is the structural drawing of oil-collecting shovel;
Fig. 4 is the structural drawing of oil storage tank;
Fig. 5 is the schematic representation of oil storage tank in 3 points, 6 points, 9 points, 4 positions of 12 directions.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Shown in Fig. 1-4; The invention provides the secondary self-lubricating device of a kind of planetary pinion; Comprise planet carrier 1, planet wheel 2, planet axis 3, planetary bearing 4, sun gear 5, oil-collecting shovel 6 and oil storage tank 7; Planet axis 3 is fixedly mounted on the planet carrier 1, and planet wheel 2 is installed on the planet axis 3 through planetary bearing 4; Sun gear 5 and planet wheel 2 engagements.Oil storage tank 7 is a square-box shape structure, and a plurality of screw of its underrun are installed in the inboard of planet carrier 1 muscle, and towards sun gear; A side is provided with oil transportation mouth 8; End face and be provided with a plurality of oilholes 9 with said oil transportation mouth 8 relative sides, said oil transportation mouth 8 and oil-collecting shovel 6 are positioned at the homonymy of planet carrier 1.Oil-collecting shovel 6 is fixedly mounted on the outboard end of planet carrier 1 muscle, the cross section Cheng ⊿ shape of oil-collecting shovel 6, and it is fixedly connected with a mounting plate 10, and said mounting plate 10 is installed in the inboard of planet carrier muscle through screw.The major function of oil-collecting shovel 6 is a shovel oil, if liquid level is higher, can adopt the muscle of planet carrier 1 to shovel oil and needn't adopt oil-collecting shovel 6.The lubricants capacity that shovels can shovel 6 the shovel oil degree of depth through oil-collecting and adjust with the oily zone of shovel.In order to guarantee lubrication effect, the oil reserve of oil storage tank 7 is greater than the shovel oil mass of oil-collecting shovel 6.
As shown in Figure 5, the planetary mechanism in the present embodiment is 4 shuntings, and the present invention is not limited to the number of planet wheel 2 certainly.When oil storage tank 7 was in 6 positions, oil storage tank 7 is fuel feeding not; When being in 9 positions, oil storage tank 7 bottoms are evenly lubricated through oilhole 9, and this position fuel delivery is little, but because the fuel-displaced direction of lubricant oil is opposite with rotation direction, the oil spout effect is arranged; During 12 positions, a large amount of lubricant oil in the oil storage tank 7 flow out from the oil transportation mouth 8 of A side, water on sun gear 5, every oil storage tank 7 run to all can provide maximum about 12 positions lubricant oil to sun gear 5; Behind 3 positions, the lubricant oil in the oil storage tank 7 all is poured on the planet wheel 2, and the gear teeth that obtain lubricant oil will be rotated further several angle and could get into engagement, and these planet wheel 2 bottoms have just touched liquid level.By on can know, in operation process, oil storage tank 7 is always arranged to sun gear 5, planet wheel 2 gear pair supplying lubricating oils in the 120 ° of scopes in planet carrier 1 top, and oil mass is abundant, thereby has guaranteed lubrication effect.
The present invention not only is confined to above-mentioned embodiment; Persons skilled in the art are according to content disclosed by the invention; Can adopt other multiple embodiment embodiment of the present invention, therefore, every employing project organization of the present invention and thinking; Do some simple designs that change or change, all fall into the scope of the present invention's protection.
Claims (5)
1. the self-lubricating device that planetary pinion is secondary comprises planet carrier, planet wheel, planet axis, planetary bearing and sun gear, and planet axis is fixedly mounted on the planet carrier, and planet wheel is installed on the planet axis through planetary bearing; Sun gear and planet wheel engagement; It is characterized in that the secondary self-lubricating device of said planetary pinion also comprises an oil-collecting shovel and an oil storage tank, the oil-collecting shovel is fixedly mounted on the outboard end of planet carrier muscle, and oil storage tank is a square-box shape structure, and its bottom surface is fixedly mounted on the inboard of planet carrier muscle; A side is provided with the oil transportation mouth; End face and be provided with a plurality of oilholes with the relative side of said oil transportation mouth, said oil transportation mouth and oil-collecting shovel are positioned at the homonymy of planet carrier.
2. the self-lubricating device that planetary pinion according to claim 1 is secondary is characterized in that, the oil reserve of oil storage tank is greater than the shovel oil mass of oil-collecting shovel.
3. the self-lubricating device that planetary pinion according to claim 1 is secondary is characterized in that, the cross section Cheng ⊿ shape of said oil-collecting shovel.
4. the self-lubricating device that planetary pinion according to claim 3 is secondary is characterized in that, the oil-collecting shovel is fixedly connected with a mounting plate, and said mounting plate is installed in the inboard of planet carrier muscle through screw.
5. the self-lubricating device that planetary pinion according to claim 1 is secondary is characterized in that a plurality of screw of the underrun of oil storage tank are installed in the inboard of planet carrier muscle, towards sun gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187487.XA CN102705494B (en) | 2012-06-06 | 2012-06-06 | Self-lubricating device of planetary gear pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187487.XA CN102705494B (en) | 2012-06-06 | 2012-06-06 | Self-lubricating device of planetary gear pair |
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| Publication Number | Publication Date |
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| CN102705494A true CN102705494A (en) | 2012-10-03 |
| CN102705494B CN102705494B (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210187487.XA Active CN102705494B (en) | 2012-06-06 | 2012-06-06 | Self-lubricating device of planetary gear pair |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912671A (en) * | 2014-03-28 | 2014-07-09 | 南车戚墅堰机车车辆工艺研究所有限公司 | Gearbox bearing lubrication device |
| CN105221713A (en) * | 2015-09-30 | 2016-01-06 | 中南大学 | A kind of aircraft planetary gear reduction box lubricant passage way system and planetary gear reduction box |
| CN109058445A (en) * | 2018-10-31 | 2018-12-21 | 南京高速齿轮制造有限公司 | The planetary gear train oil spout lubricating structure of wind turbine gearbox |
| WO2020025166A1 (en) | 2018-07-31 | 2020-02-06 | Sew-Eurodrive Gmbh & Co. Kg | Gearbox having at least one planetary gear stage |
| WO2020114507A1 (en) * | 2018-12-07 | 2020-06-11 | 南京高速齿轮制造有限公司 | Gear box |
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| JPH07208587A (en) * | 1994-01-18 | 1995-08-11 | Honda Motor Co Ltd | Lubricating structure for pinion shaft of planetary gear device |
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| CN202158172U (en) * | 2011-06-18 | 2012-03-07 | 南车戚墅堰机车车辆工艺研究所有限公司 | Forced lubricating system for meshing of planetary system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07208587A (en) * | 1994-01-18 | 1995-08-11 | Honda Motor Co Ltd | Lubricating structure for pinion shaft of planetary gear device |
| JPH1030699A (en) * | 1996-07-18 | 1998-02-03 | Ntn Corp | Planetary roller type power transmission |
| JPH10318356A (en) * | 1997-05-16 | 1998-12-04 | Jatco Corp | Lubricating device for planetary gear |
| US6039667A (en) * | 1998-09-24 | 2000-03-21 | The Falk Corporation | Sun gear lubrication and inspection mechanism |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912671A (en) * | 2014-03-28 | 2014-07-09 | 南车戚墅堰机车车辆工艺研究所有限公司 | Gearbox bearing lubrication device |
| CN105221713A (en) * | 2015-09-30 | 2016-01-06 | 中南大学 | A kind of aircraft planetary gear reduction box lubricant passage way system and planetary gear reduction box |
| CN105221713B (en) * | 2015-09-30 | 2016-05-04 | 中南大学 | A kind of aircraft planetary gear reduction box lubricant passage way system and planetary gear reduction box |
| WO2020025166A1 (en) | 2018-07-31 | 2020-02-06 | Sew-Eurodrive Gmbh & Co. Kg | Gearbox having at least one planetary gear stage |
| CN112424510A (en) * | 2018-07-31 | 2021-02-26 | 索尤若驱动有限及两合公司 | Reduction gear having at least one planetary gear stage |
| EP4023908A1 (en) | 2018-07-31 | 2022-07-06 | Sew-Eurodrive GmbH & Co. KG | Transmission with at least one planetary gear stage |
| CN109058445A (en) * | 2018-10-31 | 2018-12-21 | 南京高速齿轮制造有限公司 | The planetary gear train oil spout lubricating structure of wind turbine gearbox |
| WO2020114507A1 (en) * | 2018-12-07 | 2020-06-11 | 南京高速齿轮制造有限公司 | Gear box |
| US11543019B2 (en) | 2018-12-07 | 2023-01-03 | Nanjing High-Speed Gear Manufacturing Co., Ltd. | Gear box with an oil stirring box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102705494B (en) | 2014-10-15 |
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Address after: No. 3801 Jiangnan Avenue, Ruian City, Wenzhou City, Zhejiang Province Patentee after: Zhejiang Tongli Transmission Technology Co.,Ltd. Address before: 325207 Chuanhe street, North Village, Linlong office, Feiyun Town, Ruian City, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG TONGLI HEAVY GEAR Co.,Ltd. |