CN212564335U - Lubricating and cooling structure of spline pair and tidal current energy power generation speed increasing box - Google Patents
Lubricating and cooling structure of spline pair and tidal current energy power generation speed increasing box Download PDFInfo
- Publication number
- CN212564335U CN212564335U CN202021059973.XU CN202021059973U CN212564335U CN 212564335 U CN212564335 U CN 212564335U CN 202021059973 U CN202021059973 U CN 202021059973U CN 212564335 U CN212564335 U CN 212564335U
- Authority
- CN
- China
- Prior art keywords
- oil
- oil hole
- box body
- lubricating
- gear
- 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.)
- Active
Links
Images
Landscapes
- General Details Of Gearings (AREA)
- Retarders (AREA)
Abstract
The application provides a lubricating and cooling structure of a spline pair and a tidal current energy power generation speed increasing box, wherein the lubricating and cooling structure comprises a sun gear, a large gear, a bearing gland and an oil distributing ring; the external spline of the sun gear is meshed with the internal spline of the bull gear to form a spline pair; a first oil hole is formed in the bearing gland, a pipe joint is connected to the bearing gland, and the pipe joint is communicated with the first oil hole; and a second oil hole is formed in the oil distribution ring along the axial direction of the oil distribution ring, a third oil hole is formed in the inner wall, close to the oil distribution ring, of the large gear, a lubricating cavity is formed between the third oil hole and the spline pair, and the third oil hole is communicated with the second oil hole. After lubricating oil is fully stored in the lubricating cavity, the lubricating oil in the lubricating cavity flows to the spline pair under the action of pressure, the forced lubricating and cooling effects are achieved, and the lubricating oil finally returns to the box body along the inner hole of the large gear. The oil distribution ring and the bearing end cover are static relative to the large gear and cannot rotate, so that lubricating oil can conveniently enter from the pipe joint, and the whole lubricating and cooling structure does not need to be obliquely installed.
Description
Technical Field
The utility model relates to a mechanical connection technical field, concretely relates to vice lubricated cooling structure of spline and trend can electricity generation speed-increasing box.
Background
Tidal current energy is more and more concerned by all countries in the world as clean energy, and China has abundant ocean energy reserves and large exploitable development amount. The tidal current energy power generation speed increasing box is used for connecting a hub main shaft and a generator, has the main function of transmitting power generated by blades under the action of water flow to the generator at a corresponding rotating speed, is a core device of a system, and has great influence on the reliability, the economy and the like of the whole system.
Spline pairs are common coupling structures often used in high power transmission systems. The spline pair has the characteristics of high alignment degree, good axial guidance, capability of transmitting larger torque, easiness in mounting and dismounting and the like. However, fretting wear and large heat generation occur during operation of the spline pair, so that the lubrication, cooling and flushing effects of the spline pair are important to the service life and the service reliability of the spline pair.
In the Chinese invention patent with the publication number of CN103711885, a lubricating and cooling method for a spline pair connection of a sun gear and a large gear shaft sleeve of a fan speed increasing box is provided. Because the gear box is installed by inclining 5 degrees in the working state, the oil stirring or the splashed lubricating oil enters the spline part through the cylindrical inclined surface inclining 5 degrees, so that the purpose of lubricating the spline is achieved. The premise of the lubricating and cooling mode is that the gear box is installed obliquely, the tidal current energy power generation speed increasing box provided by the application is applied to tidal current energy power generation, and the unit is installed horizontally and cannot be inclined.
Disclosure of Invention
The utility model discloses to unable with the installation of gear box slope, lead to the vice problem of the unable lubricated cooling problem of spline, provide a vice lubricated cooling structure of spline and trend can generate electricity acceleration rate case.
In order to achieve the above purpose, the invention provides the following technical scheme:
on one hand, the application provides a lubricating and cooling structure of a spline pair, which comprises a sun gear, a large gear, a bearing gland and an oil distribution ring; the external spline of the sun gear is meshed with the internal spline of the bull gear to form a spline pair; a first oil hole is formed in the bearing gland, a pipe joint is connected to the bearing gland, and the pipe joint is communicated with the first oil hole; and a second oil hole is formed in the oil distribution ring along the axial direction of the oil distribution ring, a third oil hole is formed in the inner wall, close to the oil distribution ring, of the large gear, a lubricating cavity is formed between the third oil hole and the spline pair, and the third oil hole is communicated with the second oil hole.
Preferably, the oil distribution ring is connected with the bull gear through a copper sleeve, and the copper sleeve is in interference connection with the oil distribution ring. The copper bush and the oil separating ring are in interference connection, so that the bearable force is larger and the bearing is more stable. The outer ring of the copper sleeve is tightly attached to the inner hole of the large gear.
Preferably, a flush pin is arranged between the copper sleeve and the oil distribution ring, so that mutual sliding between the copper sleeve and the oil distribution ring can be prevented.
Preferably, one side of the bull gear, which is close to the copper bush, is provided with an oil groove, a fourth oil hole is formed in the copper bush, a fifth oil hole is formed in the bottom of the oil groove, the oil groove is communicated with the second oil hole through the fourth oil hole, and the oil groove is communicated with the third oil hole through the fifth oil hole.
Preferably, a plug screw is arranged at one side of the third oil hole close to the bearing gland. In order to facilitate the machining of the third oil hole, the machining is started from the right end face of the large gear, and after the machining is finished, a screw plug is arranged on the right side of the third oil hole in order to prevent oil leakage.
Compared with the prior art, the invention has the beneficial effects that: this application is through the first oilhole intercommunication of coupling and bearing gland, and lubricating oil flows into first oilhole, second oilhole, third oilhole through the coupling, flows into lubricated intracavity at last, after lubricated intracavity storage full lubricating oil, under the vice effect of spline, lubricating oil in the lubricated intracavity will be to the vice flow of spline, get back to the box at last. The oil distribution ring and the bearing end cover are static relative to the large gear and cannot rotate, so that lubricating oil can conveniently enter from the pipe joint, and the whole lubricating and cooling structure does not need to be obliquely installed.
On the other hand, the application also provides a tidal current energy power generation speed increasing box, the tidal current energy power generation speed increasing box comprises the lubricating and cooling structure of the spline pair, and the tidal current energy power generation speed increasing box further comprises a planet carrier, a front box body, a middle box body and a gear ring; one side of the planet carrier is mounted on the front box body through a first cylindrical bearing, the other side of the planet carrier is mounted on the middle box body through a second cylindrical bearing, a gear ring is arranged between the front box body and the middle box body, and two ends of the gear ring are fixedly connected with the front box body and the middle box body; a planet wheel is arranged between the front box body and the middle box body; one end of the planet carrier, which is far away from the front box body, is connected with a locking disc, and the locking disc is connected with a main shaft and blades; the outer circumference of the big gear is engaged with a small gear, and the small gear is connected with a generator through a coupler.
Preferably, a hollow pipe penetrates through the center of the sun gear, the hollow pipe is fixedly connected with the planet carrier, and the hollow pipe is mounted on the bearing gland through a third cylindrical bearing; an O-shaped sealing ring is arranged between the hollow tube and the planet carrier, and a control cable can be threaded through the hollow tube. The hollow pipe is fixedly connected with the planet carrier through a bolt, so that the hollow pipe rotates along with the planet carrier.
Preferably, a rotating shaft is installed in the pinion, and a rear box body is installed at the rear end of the middle box body; one end of the rotating shaft is connected to the middle box body through a first bearing, the other end of the rotating shaft is connected to the rear box body through a second bearing, and the first bearing is a bearing with separable inner and outer rings. The bearing is a bearing with separable inner and outer rings, so that when the bearing needs to be overhauled, the pinion can be pulled out together with the inner ring of the bearing, and the overhaul is convenient.
Preferably, the tidal current energy power generation speed increasing box further comprises a barring structure, and the barring structure comprises a barring motor, a reduction box and a barring gear shaft; the turning motor is connected with the reduction gearbox, and an output shaft of the reduction gearbox is connected with the turning gear shaft through a spline sleeve. When needing to overhaul, combine barring structure and gear wheel through pulling out fork mechanism, thereby the barring gear shaft drives parallel level gear wheel with certain rotational speed and drives entire system rotation, overhauls the back of accomplishing, makes barring structure and gear wheel break away from through pulling out fork mechanism can.
Compared with the prior art, the invention has the beneficial effects that: the application provides a tidal current energy power generation speed increasing box, through the lubrication and cooling structure who has used above-mentioned spline pair, just so can just so make whole tidal current energy power generation speed increasing box just can realize the lubrication and cooling effect to the spline pair under the condition that does not need the slope installation. The blades rotate under the action of tidal current kinetic energy to drive the planet carrier to rotate, the planet carrier drives the sun gear, the sun gear drives the large gear, the large gear transmits the kinetic energy to the small gear, and the small gear finally transmits the kinetic energy to the generator, so that the kinetic energy of the tidal current energy is converted into electric energy.
Description of the drawings:
FIG. 1 is a schematic structural view of a lubrication cooling structure of a spline pair provided by the present application;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is a schematic structural diagram of a tidal current energy power generation speed increasing box provided by the present application;
fig. 4 is a schematic view of a connection structure of the pinion.
The labels in the figure are: 1-locking disk, 2-planet carrier, 3-first cylindrical bearing, 4-front box, 5-planet wheel, 6-gear ring, 7-middle box, 8-second cylindrical bearing, 9-pinion, 9.1-first bearing, 9.2-second bearing, 9.3-locking nut, 10-bull gear, 11-sun wheel, 11.1-pipe joint, 11.2-first oil hole, 11.3-third cylindrical bearing, 11.4-oil separating ring, 11.5-second oil hole, 11.6-copper bush, 11.7-screw plug, 11.8-slotted pin, 11.9-pressing plate, 13-turning gear, 13.1-turning gear, 13.2-reduction box, 13.3-spline bush, 13.4-turning gear shaft, 22-third oil hole, 23-lubricating cavity, 24-oil groove, 25-a fourth oil hole, 26-a fifth oil hole, 27-a hollow pipe and 28-a bearing gland.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and 2, a lubricating and cooling structure of a spline pair is provided, which comprises a sun gear 11, a gearwheel 10, a bearing gland 28 and an oil-separating ring 11.4; the external spline of the sun gear 11 is meshed with the internal spline of the large gear 10 to form a spline pair; the bearing gland 28 is provided with a first oil hole 11.2, the bearing gland 28 is connected with a pipe joint 11.1, and the pipe joint 11.1 is communicated with the first oil hole 11.2.
The oil distribution ring 11.4 is provided with a second oil hole 11.5 along the axial direction of the oil distribution ring 11.4, and the inner wall of the bull gear 10 close to the oil distribution ring 11.4 is provided with a third oil hole 22. The oil separating ring 11.4 is connected with the bull gear 10 through a copper sleeve 11.6, and the copper sleeve 11.6 is in interference connection with the oil separating ring 11.4. A caulking pin 11.8 is arranged between the copper sleeve 11.6 and the oil separating ring 11.4. An oil groove 24 is formed in one side, close to the copper bush 11.6, of the large gear 10, a fourth oil hole 25 is formed in the copper bush 11.6, a fifth oil hole 26 is formed in the bottom of the oil groove 24, the oil groove 24 is communicated with the second oil hole 11.5 through the fourth oil hole 25, and the oil groove 24 is communicated with the third oil hole 22 through the fifth oil hole 26. The third oil hole 22 communicates with the second oil hole 11.5 via a lubrication chamber 23.
The pipe joint 11.1 is arranged at the upper end of the bearing gland 28, the first oil hole 11.2, the second oil hole 11.5 and the third oil hole 22 are all parallel to the axis of the sun gear 11 and do not need to be arranged obliquely, oil holes are arranged in the oil distribution ring 11.4 along the circumference of the oil distribution ring 11.4, and the second oil hole 11.5 in the oil distribution ring 11.4 is arranged at the bottom of the oil distribution ring 11.4; the oil-separating ring 11.4 can make the lubricating oil in the first oil hole 11.2 on the bearing gland 28 flow into the oil hole and then flow into the second oil hole 11.5. The length of the second oil hole 11.5 is smaller than the length of the oil-separating ring 11.4, i.e., the second oil hole 11.5 does not extend through the entire oil-separating ring 11.4.
The third oil hole 22 is formed in the inner side of the large gear 10, the third oil hole 22 is machined from the right end face of the large gear 10, and after machining is completed, the right end of the third oil hole 22 is blocked by using a screw plug 11.7.
Be equipped with lubricated chamber 23 between third oilhole 22 and the spline is vice, the outside of gear wheel 10 inboard and sun gear 11 forms lubricated chamber 23 on the right side of spline pair promptly, lubricating oil flows into lubricated chamber 23 behind third oilhole 22, can form a pressure to the left after lubricating oil fills up lubricated chamber 23, sun gear 11 and gear wheel 10 rotate relatively, under the vice effect of spline, lubricating oil in lubricated chamber 23 flows into the spline pair under the effect of pressure to lubricate and cool the spline pair, the small particle that the spline pair produced at the in-process of meshing flows out the spline pair under the drive of lubricating oil, just so can not influence the vice meshing of spline, can improve the vice life-span of spline.
The first oil hole 11.2, the second oil hole 11.5 and the third oil hole 22 are horizontal, and are convenient to process, the strength, particularly the fatigue strength, of the large gear 10 is influenced by processing deep long holes in the Chinese invention patent with the publication number of CN103711885, and on the other hand, the processing of the inclined deep long holes is very complicated; the lubricating and cooling structure of the spline pair provided by the application is stationary due to the bearing gland 28 and the oil distribution ring 11.4.
As shown in fig. 3 and 4, based on the lubrication and cooling structure of the spline pair, the present application further provides a tidal current energy power generation speed increasing box, which comprises a planet carrier 2, a front box body 4, a middle box body 7 and a gear ring 6, besides the lubrication and cooling structure of the spline pair; one side of the planet carrier 2 is arranged on the front box body 4 through a first cylindrical bearing 3, the other side of the planet carrier 2 is arranged on the middle box body 7 through a second cylindrical bearing 8, a gear ring 6 is arranged between the front box body 4 and the middle box body 7, and two ends of the gear ring 6 are fixedly connected with the front box body 4 and the middle box body 7; a planet wheel 5 is arranged between the front box body 4 and the middle box body 7; the planet carrier 2 is kept away from the one end of preceding box 4 and is connected with locking dish 1, connects main shaft and blade on the locking dish 1.
The center of sun gear 11 is equipped with the through-hole, installs hollow tube 27 in the through-hole, and hollow tube 27 runs through sun gear 11, and hollow tube 27 passes through the bolt to be connected with planet carrier 2, is equipped with O type sealing washer between hollow tube 27 and the planet carrier 2, and the right-hand member of hollow tube 27 is installed on bearing gland 28 through third cylindrical bearing 11.3 to adopt mechanical seal to add V type sealing washer and realize sealing to hollow tube 27.
A pinion 9 is meshed on the outer circumference of the large gear 10, and a rear box body is arranged at the rear end of the middle box body 7; as shown in fig. 4, the pinion 9 is connected with the generator through a coupling, a rotating shaft is installed in the pinion 9, one end of the rotating shaft is connected to the middle box 7 through a first bearing 9.1, the other end of the rotating shaft is installed on the rear box through a second bearing 9.2, and the first bearing 9.1 is a bearing with separable inner and outer rings; the right end of the second bearing 9.2 is limited through a locking nut 9.3, when the maintenance is needed, the locking nut 9.3 is loosened, and the whole pinion 9, the locking nut 9.3, the second bearing 9.2 and the inner ring of the first bearing 9.1 are pulled out together for maintenance.
The tidal current energy power generation speed increasing box further comprises a barring structure 13, and the barring structure 13 comprises a barring motor 13.1, a reduction box 13.2 and a barring gear shaft 13.4; the barring motor 13.1 is connected with the reduction gearbox 13.2, and an output shaft of the reduction gearbox 13.2 is connected with the barring gear shaft 13.4 through the spline sleeve 13.3. The fork pulling mechanism is a conventional arrangement in the field and is not described in detail in this application. When needing to overhaul, combine barring structure 13 and gear wheel 10 through shifting fork mechanism, thereby barring gear shaft 13.4 drives parallel level gear wheel 10 with certain rotational speed and drives the rotation of entire system, overhauls the back of accomplishing, makes barring structure 13 break away from with gear wheel 10 can through shifting fork mechanism.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A lubrication cooling structure of a spline pair is characterized by comprising a sun gear (11), a large gear (10), a bearing gland (28) and an oil distribution ring (11.4); the external spline of the sun gear (11) is meshed with the internal spline of the large gear (10) to form a spline pair; a first oil hole (11.2) is formed in the bearing gland (28), a pipe joint (11.1) is connected to the bearing gland (28), and the pipe joint (11.1) is communicated with the first oil hole (11.2); the oil distribution ring (11.4) is provided with a second oil hole (11.5), the inner wall of the large gear (10) close to the oil distribution ring (11.4) is provided with a third oil hole (22), a lubricating cavity (23) is arranged between the third oil hole (22) and the spline pair, and the third oil hole (22) is communicated with the second oil hole (11.5).
2. The lubrication and cooling structure of a spline pair as claimed in claim 1, characterized in that the oil distribution ring (11.4) and the gearwheel (10) are connected by a copper bush (11.6), and the copper bush (11.6) is in interference connection with the oil distribution ring (11.4).
3. Lubricating and cooling structure for a spline pair according to claim 2, characterized in that a dowel pin (11.8) is provided between the copper bush (11.6) and the oil-separating ring (11.4).
4. The lubrication and cooling structure of a spline pair according to claim 2, characterized in that an oil groove (24) is formed on one side of the large gear (10) close to the copper bush (11.6), a fourth oil hole (25) is formed in the copper bush (11.6), a fifth oil hole (26) is formed in the bottom of the oil groove (24), the oil groove (24) is communicated with the second oil hole (11.5) through the fourth oil hole (25), and the oil groove (24) is communicated with the third oil hole (22) through the fifth oil hole (26).
5. The lubrication and cooling structure of a spline pair according to claim 2, characterized in that a plug screw (11.7) is provided at one side of the third oil hole (22) close to the bearing gland (28).
6. A tidal current energy generation speed increasing box, which is characterized by comprising the lubricating and cooling structure of the spline pair of any one of claims 1 to 5, and further comprising a planet carrier (2), a front box body (4), a middle box body (7) and a gear ring (6); one side of the planet carrier (2) is mounted on the front box body (4) through a first cylindrical bearing (3), the other side of the planet carrier (2) is mounted on the middle box body (7) through a second cylindrical bearing (8), a gear ring (6) is arranged between the front box body (4) and the middle box body (7), and two ends of the gear ring (6) are fixedly connected with the front box body (4) and the middle box body (7); a planet wheel (5) is arranged between the front box body (4) and the middle box body (7); one end, far away from the front box body (4), of the planet carrier (2) is connected with a locking disc (1), and the locking disc (1) is connected with a main shaft and blades; a small gear (9) is meshed on the outer circumference of the large gear (10), and the small gear (9) is connected with a generator through a coupler.
7. The tidal current energy power generation speed increasing box according to claim 6, wherein a hollow pipe (27) penetrates through the center of the sun gear (11), the hollow pipe (27) is fixedly connected with the planet carrier (2), and the hollow pipe (27) is installed on the bearing gland (28) through a third cylindrical bearing (11.3); an O-shaped sealing ring is arranged between the hollow pipe (27) and the planet carrier (2).
8. The tidal current energy generation speed increasing box according to claim 6, wherein a rotating shaft is installed in the pinion (9), and a rear box body is installed at the rear end of the middle box body (7); one end of the rotating shaft is connected to the middle box body (7) through a first bearing (9.1), the other end of the rotating shaft is connected to the rear box body through a second bearing (9.2), and the first bearing (9.1) is a bearing with separable inner and outer rings.
9. The tidal current energy generation gearbox of claim 6, further comprising a barring structure (13), the barring structure (13) comprising a barring motor (13.1), a reduction gearbox (13.2), and a barring gear shaft (13.4); the barring motor (13.1) is connected with the reduction gearbox (13.2), and an output shaft of the reduction gearbox (13.2) is connected with the barring gear shaft (13.4) through a spline sleeve (13.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021059973.XU CN212564335U (en) | 2020-06-10 | 2020-06-10 | Lubricating and cooling structure of spline pair and tidal current energy power generation speed increasing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021059973.XU CN212564335U (en) | 2020-06-10 | 2020-06-10 | Lubricating and cooling structure of spline pair and tidal current energy power generation speed increasing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212564335U true CN212564335U (en) | 2021-02-19 |
Family
ID=74629630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021059973.XU Active CN212564335U (en) | 2020-06-10 | 2020-06-10 | Lubricating and cooling structure of spline pair and tidal current energy power generation speed increasing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212564335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024083253A1 (en) * | 2022-10-21 | 2024-04-25 | 采埃孚(天津)风电有限公司 | Wind motor gearbox lubricating apparatus and gearbox |
-
2020
- 2020-06-10 CN CN202021059973.XU patent/CN212564335U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024083253A1 (en) * | 2022-10-21 | 2024-04-25 | 采埃孚(天津)风电有限公司 | Wind motor gearbox lubricating apparatus and gearbox |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202360732U (en) | Lubricating system of lubricating oil | |
| CN212564335U (en) | Lubricating and cooling structure of spline pair and tidal current energy power generation speed increasing box | |
| CN102147005A (en) | Input end of gear box of wind power generator | |
| WO2024087599A1 (en) | Planetary row lubrication structure, hybrid electric drive assembly, and vehicle | |
| CN202579059U (en) | High-power offshore type wind generator overdrive gear wheel box | |
| EP3662159B1 (en) | Planet carrier of a wind turbine gearbox with improved lubricant path | |
| CN110671485A (en) | Assembly structure of sun gear shaft and spline shaft of wind power gear box | |
| CN210510227U (en) | Transmission device of mechanical pump set of wind power gear box | |
| CN101429991A (en) | Planet gear speed increaser for hydroelectric power generation | |
| CN216241287U (en) | Hydrogen circulating pump of fuel cell | |
| CN201396405Y (en) | Wind power speed increasing box | |
| CN202040015U (en) | Input end of gear case of wind driven generator | |
| CN213776122U (en) | Down-wind bearing bush of high-speed shaft of large-megawatt wind power gear box | |
| CN210889998U (en) | Assembly structure of sun gear shaft and spline shaft of wind power gear box | |
| CN106594250B (en) | Lubrication mechanism for planetary gear train supporting bearing in wind power gear box | |
| CN114977606A (en) | Multi-motor coupling structure | |
| CN113898681A (en) | Shafting lubricating structure of parallel hydraulic retarder | |
| CN210327262U (en) | Power device | |
| CN209705251U (en) | A kind of wind turbine gearbox planet carrier rotation oil supply lubrication device | |
| CN218267190U (en) | Sun wheel assembly, wind power gear box and wind power equipment | |
| CN206377218U (en) | 275KW wind turbine gearboxes | |
| CN111692053A (en) | Main shaft system transmission system of wind generating set | |
| CN217502544U (en) | Planetary gear box for high-rotating-speed electric automobile | |
| CN216241942U (en) | Shafting lubricating structure of parallel hydraulic retarder | |
| CN204878651U (en) | Fan acceleration rate case and vice draw bail of sun gear and planet carrier spline thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |