CN205446565U - Planet wheel retarding stage among wind -driven generator gear case - Google Patents
Planet wheel retarding stage among wind -driven generator gear case Download PDFInfo
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- CN205446565U CN205446565U CN201521101921.3U CN201521101921U CN205446565U CN 205446565 U CN205446565 U CN 205446565U CN 201521101921 U CN201521101921 U CN 201521101921U CN 205446565 U CN205446565 U CN 205446565U
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- planetary gear
- oil
- planet carrier
- bearing
- wind
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Abstract
The utility model relates to a planet wheel retarding stage among wind -driven generator gear case, including the planet carrier train, wherein, planet wheel round pin axle be the hollow shaft, and its both ends form the oil storage chamber after blockking up the nut shutoff, be equipped with in the planet carrier curb plate and the oil duct that the oil storage chamber was linked up, the oil duct that the oil duct of planet carrier curb plate passes through in sliding ring and the oil ring is linked up with the compulsory fuel feeding oil duct in the box, be equipped with the lubricate hole on the star gear of the being expert at round pin section placed in the middle, the lubricate hole both sides still set up the compensation lubricate hole of symmetry, and two compensation lubricate holes all are furnished with the isometric straight tube that inserts in the oil storage chamber, and the oil inlet is located the tip of straight tube, planet wheel supports through slide bearing that to be expert at the star gear round pin epaxial, is equipped with the confession oil ring groove who corresponds with the epaxial lubricate hole of planet wheel round pin on the slide bearing glide plane, is equipped with axial oil storage recess in the glide plane that supplies the oil ring groove both sides and the compensation lubricate hole section of corresponding, and the lubricating oil that their messengers arrived slide bearing is at glide plane formation one deck oil film.
Description
Technical field
This utility model relates to the planetary gear retarding stage in a kind of wind-driven generator wheel-box.
Background technology
Wind-power electricity generation, compared with traditional thermal power generation, has the free of contamination advantage of generating, compared with hydroelectric generation, there is capital construction low cost, floor space little, the convenient advantage of maintaining, the most large-scale water-power plant, storage reservoir is also easy to cause downstream certain potential safety hazard.
In wind-driven generator, gear-box is the critical component of wind-driven generator, typically all containing planetary gear retarding stage in the gear-box of wind-driven generator at present, the bearing majority supporting planetary gear in planet gear reduction stage is rolling bearing, the most seldom uses sliding bearing.Its reason is sliding speed the most extremely low during the unstable service condition often occurred extreme loads sliding bearing while.Due to sliding bearing overload, unloaded, wriggle and under the operating mode such as vibration, there is higher reliability, it is relatively big to the lubricating condition difference of different operating modes, and common sliding bearing mainly uses under the most high-revolving application conditions of high rotating speed.The material for sliding bearing being currently known e.g. has the white metal of alloy compositions and bell metal.Sliding bearing typically runs the lubrication gap being radially furnished with about 15 ~ 25um in commercial Application.About 5MPa is provided as the medium dynamic pressure used by bearing manufacturer for white metal.Therefore rolling bearing is the most only used generally for the position of bearings in wind-force variator.And wind power plant is due to the inefficacy of wind-power electricity generation main-gear box, result in a large amount of maintenance time and cost waste, and rolling bearing lost efficacy and occupies sizable ratio.
CN202182159U patent documentation also relates to the planetary technical scheme that sliding bearing is used for support in the variator being used for wind power plant, but it is but two kinds of different technical measures to the mode of the lubrication that sliding bearing provides, when low speed, owing to the pressure of forced feed lubrication oil circuit is relatively low, the medium dynamic pressure of sliding bearing can not be reached, only with the accumulator make-up oil that immersion oil mode is planet wheel spindle, lubrication is provided for sliding bearing again by accumulator, and now sliding bearing load is relatively low, lubrication is provided also without substantial amounts of lubricating oil；When high speed, the pressure of forced feed lubrication oil circuit is higher, and so, the sliding bearing that lubricating oil is bigger load by forced feed lubrication oil circuit by the special oil duct in planet wheel spindle again provides lubrication.Although this lubricating system disclosed in CN202182159U patent documentation can be also that sliding bearing regulates lubricating system according to different operating modes, but, its structure is relatively complicated.How while meeting the lubricating condition of sliding bearing difference operating mode, simplify structure and have become as technical problem of concern.
Utility model content
The purpose of this utility model is: at present in wind-driven generator wheel-box retarding stage support the bearing of planetary gear and mostly be rolling bearing, even if relating to sliding bearing, a series of practical problem such as the complicated structure of its lubricating system, it is provided that the planetary gear retarding stage in the wind-driven generator wheel-box that a kind of lubricating structure is the most succinct.
The purpose of this utility model is achieved in that and includes planet carrier, planetary gear, planet wheel spindle, ring gear and sun gear, at least provided with equally distributed three planetary gear bearing pins supporting planetary gear in described planet carrier, they are fixedly mounted in planet carrier, it is characterized in that, planetary gear bearing pin is hollow axle, hollow axle two ends form shoe cream room after being blocked by blocking nut, being provided with the oil duct that the shoe cream room with planetary gear bearing pin is linked up in planet carrier side plate, the oil duct of planet carrier side plate is linked up with the pressure fuel feeding oil duct in casing by the oil duct in slip ring and oil ring；Being provided with oilhole on the section that planetary gear bearing pin is placed in the middle, oilhole both sides also set up the compensation oilhole of symmetry, and two compensate oilhole and are provided with inserting the isometric straight tube in shoe cream room, and oil-in is positioned at the end of straight tube；Described planetary gear is supported on planetary gear bearing pin by sliding bearing, sliding bearing sliding surface is provided with the together fuel feeding annular groove corresponding with oilhole on planetary gear bearing pin, the sliding surface of fuel feeding annular groove both sides is provided with axial oil storage grooves with compensating the corresponding section of oilhole, and they make the lubricating oil arriving at sliding bearing form one layer of oil film at sliding surface.
In scheme of the present utility model, described sliding bearing interference fit embeds planetary gear centre bore, and the inwall of sliding bearing is sliding surface.
In scheme of the present utility model, described sliding bearing interference fit is fixed on planetary gear bearing pin, the outer wall of sliding bearing is sliding surface, its fuel feeding annular groove is provided with the through-hole through with oilhole in planetary gear bearing pin, the oil storage grooves of fuel feeding annular groove both sides is provided with and compensates, in planetary gear bearing pin, the through-hole that oilhole is through.
In scheme of the present utility model, the radius of shoe cream room in the length of the isometric straight tubes in insertion shoe cream room is not more than planetary gear bearing pin in two compensation oilholes.
In scheme of the present utility model, it is respectively equipped with plain thrust bearing between planetary gear both sides and planet carrier side and planet carrier side plate side, radial lubrication holes and axial lubrication hole that lubricating oil in shoe cream room is communicated with each other by the strong point of planetary gear bearing pin with planet carrier side and planet carrier side plate side arrive at plain thrust bearing sliding surface, plain thrust bearing section corresponding with axial lubrication hole is provided with oil storage grooves, and it makes the lubricating oil arriving at plain thrust bearing form one layer of oil film at sliding surface.
In scheme of the present utility model, two described plain thrust bearings are fixedly installed on two end faces of planetary gear, and being positioned at the plain thrust bearing surface with planet carrier side or planet carrier side plate side opposite face is sliding surface.
In such an embodiment, in order to prevent sliding surface excesssive gap, during the fixed installation of at least one plain thrust bearing, configuration is needed to adjust the backing plate of axial gap.
In scheme of the present utility model, two described plain thrust bearings are fixedly installed on the inner side end of planetary gear side and planet carrier side plate side by countersunk bolt, plain thrust bearing is sliding surface with the opposite face of planetary gear two side, is provided with the through-hole that axial lubrication hole is through with planet carrier side or planet carrier side plate side in the oil storage grooves of plain thrust bearing.In such an embodiment, in order to prevent sliding surface excesssive gap, need configuration to adjust the backing plate of axial gap during the fixed installation of at least one plain thrust bearing, backing plate is provided with the through-hole through with corresponding axial lubrication hole.
The utility model has the advantage of: owing to the wind-force instantaneous variation of wind field is not surveyed, each support zone of planet circular system can be produced moment impact, sliding bearing is applied to wind power plant planetary transmission, compared with rolling bearing planetary transmission, variator overload, unloaded, wriggle and under the operating mode such as vibration, there is higher reliability.Owing to planetary gear bearing pin is hollow axle, hollow axle two ends form shoe cream room after being blocked by blocking nut, the oil duct that in planetary gear bearing pin, shoe cream room is linked up it is provided with pressure fuel feeding oil duct in mission case in planet carrier side plate, the intersection of two oil ducts is additionally provided with oil ring and slip ring, this compact conformation, the docking technique of sound oil duct also comparative maturity, according to the explanation of this programme, implements to be easier.Owing to being provided with oilhole on the section placed in the middle at planetary gear bearing pin, oilhole both sides also set up the compensation oilhole of symmetry, oilhole can meet the lubrication under slow-speed of revolution operating mode to sliding bearing, and oilhole monosymmetric compensation oilhole can meet the lubrication under the operating mode being fully loaded with even moment overload to sliding bearing.Owing to two compensate the isometric straight tube that oilhole is provided with in insertion shoe cream room, the length of isometric straight tube is not more than the radius of shoe cream room in planetary gear bearing pin, oil-in is positioned at the end of straight tube, when oil-in is higher than lubricating oil liquid level, just can be provided as sliding bearing and lubricating oil is provided, and when variator low-speed running, supplementing of forced feed lubrication is hardly resulted in shoe cream room, lubricating oil liquid level can decline, when liquid level inserts the length in shoe cream room less than straight tube, oil-in will be above lubricating oil liquid level, compensates oilhole and will be unable to provide lubricating oil into sliding bearing.Owing to sliding bearing sliding surface is provided with the together fuel feeding annular groove corresponding with oilhole on planetary gear bearing pin, the sliding surface of fuel feeding annular groove both sides is provided with axial oil storage grooves with compensating the corresponding section of oilhole, and they can make the lubricating oil arriving at sliding bearing form one layer of oil film at sliding surface.
Of the present utility model it is also advantageous in that: owing to being respectively equipped with plain thrust bearing between planetary gear both sides and planet carrier side and planet carrier side plate side, can effectively control axially collecting together of planetary gear, makes variator run more steady.Radial lubrication holes and the axial lubrication hole communicated with each other by the strong point of planetary gear bearing pin with planet carrier side and planet carrier side plate side due to the lubricating oil in shoe cream room arrive at plain thrust bearing sliding surface, plain thrust bearing section corresponding with axial lubrication hole is provided with oil storage grooves, and it makes the lubricating oil arriving at plain thrust bearing can form one layer of oil film at sliding surface.Owing to, in the plain thrust bearing of planetary gear two ends, needing configuration to adjust the backing plate of axial gap during the fixed installation of at least one plain thrust bearing.In order to prevent sliding surface excesssive gap, reduce operating noise.This utility model compact conformation, failure rate is low, and easy to maintenance, service life is long.
Accompanying drawing explanation
Fig. 1: be planet circular system structural representation in the wind-driven generator wheel-box that relates to of this utility model.
Fig. 2: be the lubricant passage way schematic diagram of each sliding bearing that this utility model planetary gear relates to.
Fig. 3: be this utility model relates to repay oilhole critical oil bit line schematic diagram.
In figure 1, planetary gear, 2, sliding bearing, 3, planet carrier, 4, planetary gear bearing pin, 5, blocking nut, 6, plain thrust bearing, 7, ring gear, 10, locating piece/pressing plate, 11, slip ring, 12, oil ring, 13, sun gear, 14, next stage variable-speed shaft, 15, prime variable-speed shaft, 100, planet carrier side plate, 101, oil duct, 102, oil duct, 103, shoe cream room, 105, radial lubrication holes, 106, axially lubrication hole, 107, oil storage grooves, 109, repay oilhole, 110, oil storage grooves, 111, oilhole, 112, fuel feeding annular groove, 113, radial lubrication holes, 115, axially lubrication hole, 117, oil storage grooves.
Detailed description of the invention
Accompanying drawing discloses the concrete structure of this utility model embodiment without limitation, is further described this utility model below in conjunction with the accompanying drawings.
From Fig. 1 and Fig. 2, planetary transmission for wind-driven generator, including planet carrier 3, planetary gear 1, planet wheel spindle 4, ring gear 7 and sun gear 13, in planet circular system, at least provided with equally distributed three planetary gear bearing pins 4 supporting planetary gear 1 in planet carrier 3, they are fixedly mounted in planet carrier 3, and planetary gear 3 engages with ring gear 7 and sun gear 13 simultaneously, prime variable-speed shaft 15 docks with this grade of planet carrier 3, and this grade of sun gear docks with next stage variable-speed shaft 14.
In the technical program, planetary gear bearing pin 4 is hollow axle, hollow axle two ends form shoe cream room 103 after being blocked by blocking nut 5, being provided with the oil duct 101 linked up with shoe cream room 103 in planetary gear bearing pin 4 in planet carrier side plate 100, the oil duct 101 of planet carrier side plate 100 is linked up with the pressure fuel feeding oil duct in casing by the oil duct 102 in slip ring 11 and oil ring 12；Being provided with oilhole 111 on the section that planetary gear bearing pin 4 is placed in the middle, oilhole 111 both sides also set up the compensation oilhole 109 of symmetry, and two compensate oilhole 109 and are provided with inserting the isometric straight tube in shoe cream room 103, and oil-in is positioned at the end of straight tube；Described planetary gear 1 is supported on planetary gear bearing pin 4 by sliding bearing 2, sliding bearing 2 sliding surface is provided with the together fuel feeding annular groove 112 corresponding with oilhole 111 on planetary gear bearing pin 4, the sliding surface of fuel feeding annular groove 112 both sides is provided with axial oil storage grooves 110 with compensating the corresponding section of oilhole 109, and they make the lubricating oil arriving at sliding bearing 2 form one layer of oil film at sliding surface.
Plain thrust bearing 6 it is respectively equipped with between planetary gear 1 both sides and planet carrier 3 and planet carrier side plate 100, axial lubrication hole 115 in radial lubrication holes 113 that the lubrication hole arriving at plain thrust bearing 6 sliding surface on planetary gear bearing pin 4 and planet carrier 3 strong point includes in star-wheel bearing pin 4 and planet carrier 3, axial lubrication hole 107 in radial lubrication holes 105 that the lubrication hole arriving at plain thrust bearing 6 sliding surface on planetary gear bearing pin 4 and the strong point of planet carrier side plate includes in star-wheel bearing pin 4 and planet carrier 3, plain thrust bearing 6 section corresponding with radial lubrication holes is provided with oil storage grooves 107 and 117, it makes the lubricating oil arriving at plain thrust bearing 6 form one layer of oil film at sliding surface.
In the present embodiment, described sliding bearing 2 interference fit is fixed on planetary gear bearing pin 4, the outer wall of sliding bearing 4 is sliding surface, its fuel feeding annular groove 112 is provided with the through-hole through with oilhole 111 in planetary gear bearing pin 4, the oil storage grooves 110 of fuel feeding annular groove 112 both sides is provided with and compensates, in planetary gear bearing pin 4, the through-hole that oilhole 109 is through.The radius of shoe cream room 103 in the length of the isometric straight tubes in insertion shoe cream room 103 is not more than planetary gear bearing pin 4 in two compensation oilholes 109.
In the present embodiment, described planetary gear bearing pin 4 is positioned with planet carrier side plate 100 by locating piece/pressing plate 10.
In the present embodiment, two described plain thrust bearings 6 are fixedly installed on two end faces of planetary gear 1, and being positioned at plain thrust bearing 6 surface with planet carrier 3 side or planet carrier side plate 100 side opposite face is sliding surface.In such an embodiment, in order to prevent sliding surface excesssive gap, it is also possible to when at least one plain thrust bearing 6 fixedly mounts, configuration adjusts the backing plate of axial gap.
When being embodied as, described sliding bearing 2 can also interference fit embed planetary gear 1 centre bore, sliding bearing 2 inwall be sliding surface.
When being embodied as, two plain thrust bearings 6 can also be fixedly installed on the inner side end of planetary gear 1 and planet carrier side plate side 100 by countersunk bolt, plain thrust bearing 6 is sliding surface with the opposite face of planetary gear 1 two side, is provided with the through-hole through with lubrication hole in planet carrier or planet carrier side plate in the oil storage grooves of plain thrust bearing.In such an embodiment, in order to prevent sliding surface excesssive gap, need configuration to adjust the backing plate of axial gap during the fixed installation of at least one plain thrust bearing, backing plate is provided with the through-hole through with corresponding lubrication hole.
As seen from Figure 3, owing to two compensate and insert the length of the isometric straight tubes in shoe cream room 103 in oilholes 109 and be not more than the radius of shoe cream room 103 in planetary gear bearing pin 4, and oil-in is positioned at the end of straight tube, during planet carrier 3 operates, if the lubricating oil liquid level in planetary gear bearing pin 4 in shoe cream room 103 is less than the oil-in of straight tube, lubricating oil is impossible to enter and compensates oilhole 109, and now sliding bearing 2 will be unable to obtain lubricating oil by described compensation oilhole 109.Therefore, when the amount of being actually inserted into of straight tube is less than the radius of shoe cream room 103 in planetary gear bearing pin 4, the liquid level that the lubricating oil liquid level in shoe cream room 103 is corresponding with the amount of being actually inserted into of straight tube is exactly the minimum critical oil bit line meeting compensation oilhole 109.
In real work, under gear-box normal running conditions, Oil pump electrical machinery normally works, gear-box fuel feeding is sufficient, forced feed lubrication oil duct can be shoe cream room 103 make-up oil in planetary gear pivot pin 4 by oil duct 102 and 101, and provides lubrication by oilhole 111 for sliding bearing 2, provides lubrication by radial direction oil hole 105 and axial oilhole 106 for plain thrust bearing 6, meanwhile, two compensation oilholes 109 also synchronize to provide lubrication into sliding bearing 2.
Under gear-box dry run condition, or under blower fan power-off operating mode, when Oil pump electrical machinery can not continue fuel feeding, the mechanical pump being equipped with now by gear-box is only the lubricating oil replenishing that shoe cream room 103 in planetary gear bearing pin 4 provides a small amount of, cause the lubricating oil liquid level in shoe cream room 103 progressively to decline, will stop providing lubrication for sliding bearing 2 higher than compensation oilhole 109 when liquid level is less than minimum critical oil bit line.Owing to the aperture of oilhole 111 and radial direction oil hole 105 and axial oilhole 106 is the least, after oilhole 109 stopping offer lubrication is provided, lubrication oil consumption in shoe cream room 103 slows, its consumption can reach balance with the lubricating oil replenishing amount that the mechanical pump that gear-box is equipped with provides completely, thus maintains gear-box to run well under the airport logistic park operating mode of idle running or blower fan power-off.
Owing to the lubricating oil supply system of gear-box is equipped with filtration system, the lubricating oil of the cleaning after filtration can avoid oil sump to pollute the damage causing each sliding bearing sliding surface.
Claims (9)
1. the planetary gear retarding stage in a wind-driven generator wheel-box, including planet carrier, planetary gear, planet wheel spindle, ring gear and sun gear, at least provided with equally distributed three planetary gear bearing pins supporting planetary gear in described planet carrier, they are fixedly mounted in planet carrier, it is characterized in that, planetary gear bearing pin is hollow axle, hollow axle two ends form shoe cream room after being blocked by blocking nut, planet carrier side plate is provided with the oil duct that the shoe cream room with planetary gear bearing pin is linked up, the oil duct of planet carrier side plate is linked up with the pressure fuel feeding oil duct in casing by the oil duct in slip ring and oil ring；Being provided with oilhole on the section that planetary gear bearing pin is placed in the middle, oilhole both sides also set up the compensation oilhole of symmetry, and two compensate oilhole and are provided with inserting the isometric straight tube in shoe cream room, and oil-in is positioned at the end of straight tube；Described planetary gear is supported on planetary gear bearing pin by sliding bearing, sliding bearing sliding surface is provided with the together fuel feeding annular groove corresponding with oilhole on planetary gear bearing pin, the sliding surface of fuel feeding annular groove both sides is provided with axial oil storage grooves with compensating the corresponding section of oilhole, and they make the lubricating oil arriving at sliding bearing form one layer of oil film at sliding surface.
Planetary gear retarding stage in wind-driven generator wheel-box the most according to claim 1, it is characterised in that described sliding bearing interference fit embeds planetary gear centre bore, and the inwall of sliding bearing is sliding surface.
Planetary gear retarding stage in wind-driven generator wheel-box the most according to claim 1, it is characterized in that, described sliding bearing interference fit is fixed on planetary gear bearing pin, the outer wall of sliding bearing is sliding surface, its fuel feeding annular groove is provided with the through-hole through with oilhole in planetary gear bearing pin, the oil storage grooves of fuel feeding annular groove both sides is provided with and compensates, in planetary gear bearing pin, the through-hole that oilhole is through.
4. according to the planetary gear retarding stage in the wind-driven generator wheel-box one of claim 1-3 Suo Shu, it is characterised in that the radius of shoe cream room in the length of the isometric straight tubes in insertion shoe cream room is not more than planetary gear bearing pin in two compensation oilholes.
Planetary gear retarding stage in wind-driven generator wheel-box the most according to claim 4, it is characterized in that, it is respectively equipped with plain thrust bearing between planetary gear both sides and planet carrier side and planet carrier side plate side, radial lubrication holes and axial lubrication hole that lubricating oil in shoe cream room is communicated with each other by the strong point of planetary gear bearing pin with planet carrier side and planet carrier side plate side arrive at plain thrust bearing sliding surface, plain thrust bearing section corresponding with axial lubrication hole is provided with oil storage grooves, and it makes the lubricating oil arriving at plain thrust bearing form one layer of oil film at sliding surface.
Planetary gear retarding stage in wind-driven generator wheel-box the most according to claim 5, it is characterized in that, two described plain thrust bearings are fixedly installed on two end faces of planetary gear, and being positioned at the plain thrust bearing surface with planet carrier side or planet carrier side plate side opposite face is sliding surface.
Planetary gear retarding stage in wind-driven generator wheel-box the most according to claim 6, it is characterised in that need configuration to adjust the backing plate of axial gap during the fixed installation of at least one plain thrust bearing.
Planetary gear retarding stage in wind-driven generator wheel-box the most according to claim 5, it is characterized in that, two described plain thrust bearings are fixedly installed on the inner side end of planetary gear side and planet carrier side plate side by countersunk bolt, plain thrust bearing is sliding surface with the opposite face of planetary gear two side, is provided with the through-hole that axial lubrication hole is through with planet carrier side or planet carrier side plate side in the oil storage grooves of plain thrust bearing.
Planetary gear retarding stage in wind-driven generator wheel-box the most according to claim 8, it is characterized in that, need configuration to adjust the backing plate of axial gap during the fixed installation of at least one plain thrust bearing, backing plate is provided with the through-hole through with corresponding axial lubrication hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521101921.3U CN205446565U (en) | 2015-12-28 | 2015-12-28 | Planet wheel retarding stage among wind -driven generator gear case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521101921.3U CN205446565U (en) | 2015-12-28 | 2015-12-28 | Planet wheel retarding stage among wind -driven generator gear case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446565U true CN205446565U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521101921.3U Withdrawn - After Issue CN205446565U (en) | 2015-12-28 | 2015-12-28 | Planet wheel retarding stage among wind -driven generator gear case |
Country Status (1)
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| CN (1) | CN205446565U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422745A (en) * | 2015-12-28 | 2016-03-23 | 南京高速齿轮制造有限公司 | Planet wheel retarding stage in wind driven generator gearbox |
| DE102019205090A1 (en) * | 2019-04-09 | 2020-10-15 | Zf Friedrichshafen Ag | Axial fixation of a thrust washer |
| WO2023207431A1 (en) * | 2022-04-24 | 2023-11-02 | 采埃孚(天津)风电有限公司 | Lubricating mechanism for planetary gear train |
-
2015
- 2015-12-28 CN CN201521101921.3U patent/CN205446565U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422745A (en) * | 2015-12-28 | 2016-03-23 | 南京高速齿轮制造有限公司 | Planet wheel retarding stage in wind driven generator gearbox |
| CN105422745B (en) * | 2015-12-28 | 2017-08-25 | 南京高速齿轮制造有限公司 | Planetary gear retarding stage in wind-driven generator wheel-box |
| DE102019205090A1 (en) * | 2019-04-09 | 2020-10-15 | Zf Friedrichshafen Ag | Axial fixation of a thrust washer |
| WO2023207431A1 (en) * | 2022-04-24 | 2023-11-02 | 采埃孚(天津)风电有限公司 | Lubricating mechanism for planetary gear train |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160810 Effective date of abandoning: 20170825 |
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| AV01 | Patent right actively abandoned |