CN208123853U - A kind of yaw bearing lubricating system of wind driven generator principal shaft - Google Patents
A kind of yaw bearing lubricating system of wind driven generator principal shaft Download PDFInfo
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- CN208123853U CN208123853U CN201820653979.6U CN201820653979U CN208123853U CN 208123853 U CN208123853 U CN 208123853U CN 201820653979 U CN201820653979 U CN 201820653979U CN 208123853 U CN208123853 U CN 208123853U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
A kind of yaw bearing lubricating system of wind driven generator principal shaft；When operation under the action of oil pump, lubricating oil in grease-box is connect oil-piping output, the oil inlet into bearing is conveyed through warming pipeline, since warming pipeline has inner oil tube body and outer oil pipe body, hollow sandwich is formed between inner oil tube body and outer oil pipe body, it is disposed with electric heating wire in interlayer, heat temperature raising can be completed along with to it when lubricating oil is conveyed through warming pipeline；The lubricating oil of the oil outlet discharge of bearing can be passed back in grease-box through cooling pipeline, the lubricating oil of the oil outlet discharge of bearing has certain temperature at this time, the temperature is detected by temperature sensor, realize that cooling is handled to it further according to the temperature height of detection, since cooling pipeline has interior cooling tube body and outer cooling tube body, hollow sandwich is formed between interior cooling tube body and outer cooling tube body, coolant liquid is passed through in hollow sandwich, lubricating oil is conveyed by interior cooling tube body, and lubricating fluid realizes cooling during passback.
Description
Technical field
The utility model relates to wind-driven generator fields, are especially a kind of yaw bearing lubrication of wind driven generator principal shaft
System.
Background technique
Wind driven generator principal shaft uses separate bearings seat, needs lubricating oil to lubricate during operation, with the modern times
The development of technology, people are higher and higher to the performance requirement of transmission device, and then the requirement to bearing portion is also higher and higher, axis
A large amount of heat can be generated under operating by holding, it is therefore desirable to be carried out reasonable lubrication to bearing, be taken away by the convection action of oil liquid
The heat of bearing, to improve the working performance and reliability of bearing.Therefore the research of this respect is also in progress rapidly；At present usually
This operation is completed using bearing lubrication system.
It is found by retrieval, a kind of mainshaft bearing of wind-driven generator of the disclosure of the invention of patent No. CN201210141098.3
Lubricating system is provided with fuel feed hole and oil return hole on bearing block including main shaft bearing, the bearing block being nested on main shaft bearing,
Fuel feed hole is connect by petroleum pipeline with oil pump, and oil pump is connect with fuel tank by petroleum pipeline, and oil return hole is connect with petroleum pipeline one end, defeated
The oil pipe other end is extend into fuel tank, and by this mainshaft bearing of wind-driven generator lubricating system, lubricating oil can be recycled, profit
Lubricating oil flows back among fuel tank after being lubricated to bearing, and lubrication sufficiently, reduces pollution on the environment, and setting adds among fuel tank
Hot device, when environment temperature is relatively low, heater heats lubricating oil, guarantees that lubricating system runs well, oil level reaches alert
It is capable of automatic alarm when ring value, extend bearing service life.
The utility model of patent No. CN201020579437.2 discloses a kind of lubricating system of small-sized shield base bearing, packet
Fuel tank, valve group and the oil pump being arranged between fuel tank and valve group are included, valve group is connect with base bearing raceway and base bearing fuel tank, oil pump
Output end include two branches, one branch is single-way lubricating branch, and single-way lubricating branch passes through valve group and base bearing raceway
Connection, another branch are circulation fuel feeding branch, and circulation fuel feeding branch is connect by valve group with base bearing oil pocket, oil pocket and cooling
The input terminal of device connection, cooler and oil pump connects；Oil pump output end is divided into the unidirectional of unidirectional fuel feeding according to raceway and oil pocket
Lubricate the circulation fuel feeding branch two-way of branch and recyclable fuel feeding.
The utility model of patent No. CN201620864770.5 discloses a kind of oil-air lubrication for machine tool mainshaft bearing
System, the oil gas lubricating system include sequentially connected filter, air valve, oil-filling cavity, mixing chamber and nozzle, and nozzle is connected to axis
In holding, it is equipped with throttle valve between filter and mixing chamber, flowmeter is equipped between throttle valve and mixing chamber, oil-filling cavity and fuel tank connect
It is logical.
For wind driven generator principal shaft, existing bearing lubrication system is difficult to meet its demand, is primarily present as follows
Place to be modified；In existing bearing lubrication system, temperature is low when lubricating oil is exported through oil groove or oil tank, in order to preferable
Reach lubricating requirement, generally requires suitably to heat up to the lubricating oil of output, for the lubricating oil of recycling, generally require to drop it
Temperature, however need to be independently arranged in oil pipe line in existing bearing lubrication system and device is heated or cooled, be used to output or
The lubricating oil of recycling heats and cooling, this mode will increase the use cost of component, increase the controllable difficulty of operation, but also
Meeting is so that oil flow is slack-off, it is difficult to guarantee that lubricating status is best.
Utility model content
Therefore, in order to solve above-mentioned deficiency, the utility model provides a kind of yaw bearing of wind driven generator principal shaft herein
Lubricating system；When operation under the action of oil pump, the lubricating oil in grease-box is connect oil-piping output, is conveyed through warming pipeline
It is formed between inner oil tube body and outer oil pipe body into the oil inlet of bearing since warming pipeline has inner oil tube body and outer oil pipe body
Hollow sandwich is disposed with electric heating wire in interlayer, can complete to heat along with to it when lubricating oil is conveyed through warming pipeline
Heating；Moreover, the lubricating oil that the oil outlet of bearing is discharged can be cooled down, pipeline is passed back in grease-box, at this time the oil outlet of bearing
The lubricating oil of discharge has certain temperature, which is detected by temperature sensor, further according to detection temperature height to it
Realize cooling processing, since cooling pipeline has interior cooling tube body and an outer cooling tube body, interior cooling tube body and outer cooling tube body it
Between form hollow sandwich, be passed through coolant liquid in hollow sandwich, lubricating oil passes through interior cooling tube body and conveys, mistake of the lubricating fluid in passback
Cooling is realized in journey.So as to avoid when lubricating system is independently arranged and device is heated or cooled, the use cost of component will increase
And the problems such as increasing the controllable difficulty of operation, and will not influence the flow velocity of lubricating oil, it is ensured that lubricating status is best.
The utility model is realized in this way constructing a kind of yaw bearing lubricating system of wind driven generator principal shaft, the profit
Sliding system includes grease-box, lubrication oil inlet pipe and lubrication oil outlet pipe；Lubrication oil inlet pipe include connect oil-piping, oil pump,
Check-valves, warming pipeline, flowmeter, pressure gauge and overflow valve；The front end for connecing oil-piping is connected to the bottom of grease-box, connects oil
The other end of pipeline is connected to oil pump, and the outlet end of oil pump is connected to warming pipeline, the other end of warming pipeline and bearing into
Hydraulic fluid port connection；Lubricating oil outlet pipe includes cooling pipeline and temperature sensor；Cool down the upper end of pipeline and the oil outlet company of bearing
It is logical, the other end tandem grease-box for the pipeline that cools down；Warming pipeline has inner oil tube body and outer oil pipe body, inner oil tube body and outer oil
Hollow sandwich is formed between tube body, is disposed with electric heating wire in interlayer；The pipeline that cools down has interior cooling tube body and outer cooling tube body,
Hollow sandwich is formed between interior cooling tube body and outer cooling tube body, the both ends and middle part of outer cooling tube body are respectively arranged with coolant liquid
Import and cooling liquid outlet.
The utility model provides a kind of yaw bearing lubricating system of wind driven generator principal shaft by improving herein, has such as
Lower improvement and advantage；
Advantage 1：The system includes grease-box, lubrication oil inlet pipe and lubrication oil outlet pipe；Lubricating oil inlet pipe includes
Connect oil-piping, oil pump, check-valves, warming pipeline, flowmeter, pressure gauge and overflow valve；Connect front end and the grease-box of oil-piping
Bottom connection, the other end for connecing oil-piping is connected to oil pump, and the outlet end of oil pump is connected to warming pipeline, warming pipeline it is another
One end is connected to the oil inlet of bearing；Structure is simple for system itself, using reliable, guarantees the service life of bearing.
In addition, the lubricating oil in grease-box is connect oil-piping output, through warming pipeline when operation under the action of oil pump
The oil inlet into bearing is conveyed, since warming pipeline has inner oil tube body and outer oil pipe body, between inner oil tube body and outer oil pipe body
Hollow sandwich is formed, electric heating wire is disposed in interlayer, can be completed along with to it when lubricating oil is conveyed through warming pipeline
Heat temperature raising；Moreover, the lubricating oil that is discharged of the oil outlet of bearing can be cooled down, pipeline be passed back in grease-box, and bearing goes out at this time
The lubricating oil of hydraulic fluid port discharge has certain temperature, which is detected by temperature sensor, further according to the temperature height of detection
Realize that cooling is handled to it, since cooling pipeline has interior cooling tube body and outer cooling tube body, interior cooling tube body and outer cooling pipe
Hollow sandwich is formed between body, coolant liquid is passed through in hollow sandwich, and lubricating oil is conveyed by interior cooling tube body, and lubricating fluid is returning
During realize cooling.So as to avoid when lubricating system is independently arranged and device is heated or cooled, the use of component will increase
The problems such as cost and the controllable difficulty of increase operation, and will not influence the flow velocity of lubricating oil, it is ensured that lubricating status is best.
Advantage 2：Temperature sensor is connected to cooling pipe road, while temperature sensor is close to the oil outlet end of bearing,
The outlet temperature measured by temperature sensor is more accurate, while but also cooling pipeline assembling be more easier, and
Convenient for being arranged to cooling pipeline, so that cooling effect is more preferable.
Advantage 3：It connects and is provided with out oil strainer on oil-piping；Cooling pipe road is provided with return filter, oil return filter
Device is close to cooling pipeline tail end.Gone out the lubricating oil that oil strainer exports grease-box to be filtered, prevents grease-box
Interior impurity is with wherein；It is filtered processing using lubricating fluid of the return filter to reflux, is prevented thin in bearing
Object is mixed into grease-box.Meanwhile return filter close to cooling pipeline tail end, purpose also for allow cooling pipeline
Assembling be more easier（That is cooling pipeline forms a smooth management, avoids temperature sensor and return filter because of position
And the installation of cooling pipeline is caused to become complicated）.
Advantage 4：The bottom oil outlet of grease-box is provided with fuel-displaced seal gasket, and the upper end of fuel-displaced seal gasket is tight
It is attached to the inside of grease-box, the lower end body of fuel-displaced seal gasket is snapped in the bottom oil outlet of grease-box, connects oil-piping
Front end forms the connector expanded, and the connector expanded is integrally connect with the lower end body of fuel-displaced seal gasket.Due in oil pump
Under effect, the lubricating oil in grease-box connect oil-piping output, use fuel-displaced seal gasket as shown in Figure 4 purpose be for
The bottom oil outlet of grease-box is avoided to have oil liquid exudation after prolonged use.
Advantage 5：The bottom of grease-box is provided with leakage fluid dram；Meanwhile grease-box side be also respectively provided with liquidometer,
The thermometer of liquid level alarming switch and detection fuel tank internal temperature；When cleaning blowdown to grease-box, related liquid can be from row
The discharge of liquid mouth, liquidometer, liquid level alarming switch and thermometer can play certain booster action in system in.
Detailed description of the invention
Fig. 1 is the yaw bearing lubricating system schematic diagram of the utility model wind driven generator principal shaft；
Fig. 2 is the utility model warming pipeline schematic diagram；
Fig. 3 is the utility model cooling pipeline schematic diagram；
Fig. 4 is that this practical fuel-displaced seal gasket corresponds to schematic diagram.
Wherein：Grease-box 1 connects oil-piping 2, oil pump 3, check-valves 4, warming pipeline 5, inner oil tube body 5A, outer oil pipe body
5B, electric heating wire 5C, flowmeter 6, pressure gauge 7, cool down pipeline 8, interior cooling tube body 8A, outer cooling tube body 8B, cooling liquid inlet
8C, cooling liquid outlet 8D, temperature sensor 9, bearing 10, oil strainer 11 out, return filter 12, fuel-displaced seal gasket 13,
The upper end 13A of fuel-displaced seal gasket, the lower end body 13B of fuel-displaced seal gasket 13, leakage fluid dram 14, liquidometer 15, liquid level warning
Switch 16 detects the thermometer 17 of fuel tank internal temperature, overflow valve 18.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing 1- Fig. 4, to the skill in the utility model embodiment
Art scheme is clearly and completely described, it is clear that and the described embodiments are only a part of the embodiments of the utility model, and
The embodiment being not all of.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of labour.
The utility model provides a kind of yaw bearing lubricating system of wind driven generator principal shaft by improving herein, such as Fig. 1-
Shown in Fig. 4, it can be practiced as follows；The lubricating system includes grease-box 1, lubrication oil inlet pipe and lubricates out
Oil pipe line.
Lubrication oil inlet pipe includes connecing oil-piping 2, oil pump 3, check-valves 4, warming pipeline 5, flowmeter 6, pressure gauge 7 and overflowing
Flow valve 18；The front end for connecing oil-piping 2 is connected to the bottom of grease-box 1, and the other end for connecing oil-piping 2 is connected to oil pump 3, oil pump
3 outlet end is connected to warming pipeline 5, and the other end of warming pipeline 5 is connected to the oil inlet of bearing 10.
Lubricating oil outlet pipe includes cooling pipeline 8 and temperature sensor 9；The upper end of cooling pipeline 8 is fuel-displaced with bearing 10
Mouth connection, the other end tandem grease-box 1 for the pipeline 8 that cools down.
Warming pipeline 5 has between inner oil tube body 5A and outer oil pipe body 5B, inner oil tube body 5A and outer oil pipe body 5B in formation
Empty interlayer is disposed with electric heating wire 5C in interlayer.
The pipeline 8 that cools down have interior cooling tube body 8A and outer cooling tube body 8B, interior cooling tube body 8A and outer cooling tube body 8B it
Between form hollow sandwich, the both ends and middle part of outer cooling tube body 8B are respectively arranged with cooling liquid inlet 8C and cooling liquid outlet 8D.
The utility model has following improve：The system includes grease-box 1, lubrication oil inlet pipe and lubrication flowline
Road；Lubrication oil inlet pipe includes connecing oil-piping 2, oil pump 3, check-valves 4, warming pipeline 5, flowmeter 6, pressure gauge 7 and overflow valve
18；The front end for connecing oil-piping 2 is connected to the bottom of grease-box 1, and the other end for connecing oil-piping 2 is connected to oil pump 3, oil pump 3
Outlet end is connected to warming pipeline 5, and the other end of warming pipeline 5 is connected to the oil inlet of bearing 10；It is tied for system itself
Structure is simple, using reliable, guarantees the service life of bearing.
In addition, the lubricating oil in grease-box 1 is connect the output of oil-piping 2, through heating up when operation under the action of oil pump 3
Pipeline 5 conveys the oil inlet into bearing 10, since warming pipeline 5 has inner oil tube body 5A and outer oil pipe body 5B, inner oil tube body 5A
Hollow sandwich is formed between outer oil pipe body 5B, electric heating wire 5C is disposed in interlayer, when lubricating oil is conveyed through warming pipeline 5
Heat temperature raising can be completed along with to it；Moreover, the lubricating oil that the oil outlet of bearing 10 is discharged can be cooled down, pipeline 8 passes profit back
In oil tank 1, the lubricating oil of the oil outlet discharge of bearing 10 has certain temperature at this time, which is carried out by temperature sensor 9
Detection realizes that cooling is handled to it further according to the temperature height of detection, since cooling pipeline 8 has interior cooling tube body 8A and outer drop
Hollow sandwich is formed between warm tube body 8B, interior cooling tube body 8A and outer cooling tube body 8B, coolant liquid is passed through in hollow sandwich, is lubricated
Oil is conveyed by interior cooling tube body 8A, and lubricating fluid realizes cooling during passback.So as to avoid in lubricating system independence
When device is heated or cooled in setting, the problems such as will increase the use cost of component and increase the controllable difficulty of operation, and will not
Influence the flow velocity of lubricating oil, it is ensured that lubricating status is best.
For warming pipeline 5, lubricating oil circulates in inner oil tube body 5A, and the electric heating wire 5C arranged in interlayer can be with
Its fever of external control system connection control.
Temperature sensor 9 is connected on cooling pipeline 8, while temperature sensor 9 leads to close to the oil outlet end of bearing 10
The outlet temperature that excess temperature sensor 9 measures is more accurate, while but also cooling pipeline 8 assembling be more easier, and
Convenient for being arranged to cooling pipeline 8, so that cooling effect is more preferable.
It connects and is provided with out oil strainer 11 on oil-piping 2；Return filter 12, oil return filter are provided on cooling pipeline 8
Device 12 is close to cooling 8 tail end of pipeline.Gone out the lubricating oil that oil strainer 11 exports grease-box 1 to be filtered, prevents from moistening
Impurity in oil tank 1 is with wherein；The lubricating fluid to flow back using 12 Duis of return filter is filtered processing, prevents axis
The thin object held is mixed into grease-box 1.Meanwhile return filter 12, close to cooling 8 tail end of pipeline, purpose is also to be
The assembling of cooling pipeline 8 is allowed to be more easier（That is cooling pipeline 8 forms a smooth management, avoids temperature sensor 9 and returns
Oil strainer 12 causes the installation of cooling pipeline 8 to become complicated because of position）.
The bottom oil outlet of grease-box 1 is provided with fuel-displaced seal gasket 13, the upper end 13A of fuel-displaced seal gasket 13
It is tightly attached to the inside of grease-box 1, the lower end body 13B of fuel-displaced seal gasket 13 is snapped in the bottom oil outlet of grease-box 1, connects
The front end of oil-piping 2 forms the connector 2A expanded, the whole lower end body 13B with fuel-displaced seal gasket 13 of the connector 2A expanded
Connection.Since under the action of oil pump 3, the lubricating oil in grease-box 1 is connect the output of oil-piping 2, gone out using as shown in Figure 4
The purpose of oil seal rubber mat 13 is in order to avoid the bottom oil outlet of grease-box 1 has oil liquid exudation after prolonged use.
The bottom of grease-box 1 is provided with leakage fluid dram 14；Meanwhile 1 side of grease-box be also respectively provided with liquidometer 15,
The thermometer 17 of liquid level alarming switch 16 and detection fuel tank internal temperature；When cleaning blowdown to grease-box 1, related liquid can
It is discharged from leakage fluid dram 14, liquidometer 15, liquid level alarming switch 16 and thermometer 17 can play in certain auxiliary in system
Help effect.
The utility model operational process is as follows：Under the action of oil pump 3, the lubricating oil in grease-box 1 is connect oil-piping 2
Output, is gone out oil strainer 11 and is filtered to it, then convey the oil inlet into bearing 10 through warming pipeline 5, due to heating
Pipeline 5, which has, forms hollow sandwich between inner oil tube body 5A and outer oil pipe body 5B, inner oil tube body 5A and outer oil pipe body 5B, in interlayer
It is disposed with electric heating wire 5C, heat temperature raising can be completed along with to it when lubricating oil is conveyed through warming pipeline 5；Another party
The lubricating oil in face, the oil outlet discharge of bearing 10 can be passed back in grease-box 1 through cooling pipeline 8, at this time the oil outlet of bearing 10
The lubricating oil of discharge has certain temperature, which is detected by temperature sensor 9, further according to detection temperature height to it
Cooling processing is realized, since cooling pipeline 8 has interior cooling tube body 8A and outer cooling tube body 8B, interior cooling tube body 8A and outer cooling
Hollow sandwich is formed between tube body 8B, and coolant liquid is passed through in hollow sandwich, lubricating oil is conveyed by interior cooling tube body 8A, but also
Lubricating fluid realizes cooling during passback；The lubricating fluid to flow back using 12 Duis of return filter is filtered processing, prevents
Only the thin object in bearing is mixed into.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (6)
1. a kind of yaw bearing lubricating system of wind driven generator principal shaft, it is characterised in that：Including grease-box（1）, lubricate into
Oil pipe line and lubrication oil outlet pipe；
The lubrication oil inlet pipe includes connecing oil-piping（2）, oil pump（3）, check-valves（4）, warming pipeline（5）, flowmeter（6）,
Pressure gauge（7）And overflow valve（18）；Connect oil-piping（2）Front end and grease-box（1）Bottom connection, connect oil-piping（2）'s
The other end and oil pump（3）Connection, oil pump（3）Outlet end and warming pipeline（5）Connection, warming pipeline（5）The other end and axis
It holds（10）Oil inlet connection；
The lubrication oil outlet pipe includes cooling pipeline（8）And temperature sensor（9）；Cool down pipeline（8）Upper end and bearing
（10）Oil outlet connection, cool down pipeline（8）Other end tandem grease-box（1）；
Warming pipeline（5）With inner oil tube body（5A）With outer oil pipe body（5B）, inner oil tube body（5A）With outer oil pipe body（5B）Between
Hollow sandwich is formed, is disposed with electric heating wire in interlayer（5C）；
Cool down pipeline（8）With interior cooling tube body（8A）With outer cooling tube body（8B）, interior cooling tube body（8A）With outer cooling tube body
（8B）Between form hollow sandwich, outer cooling tube body（8B）Both ends and middle part be respectively arranged with cooling liquid inlet（8C）And cooling
Liquid outlet（8D）.
2. the yaw bearing lubricating system of wind driven generator principal shaft according to claim 1, it is characterised in that：The temperature
Sensor（9）It is connected to cooling pipeline（8）On, while temperature sensor（9）Close to bearing（10）Oil outlet end.
3. the yaw bearing lubricating system of wind driven generator principal shaft according to claim 1, it is characterised in that：It is described to connect oil
Pipeline（2）On be provided with out oil strainer（11）；Cool down pipeline（8）On be provided with return filter（12）, return filter
（12）Close to cooling pipeline（8）Tail end.
4. the yaw bearing lubricating system of wind driven generator principal shaft according to claim 1, it is characterised in that：The lubrication
Fuel tank（1）Bottom oil outlet be provided with fuel-displaced seal gasket（13）, fuel-displaced seal gasket（13）Upper end（13A）It is close to
In grease-box（1）Inside, fuel-displaced seal gasket（13）Lower end body（13B）It is snapped in grease-box（1）Bottom it is fuel-displaced
Mouthful, connect oil-piping（2）Front end form the connector that expands（2A）, the connector that expands（2A）Whole and fuel-displaced seal gasket
（13）Lower end body（13B）Connection.
5. the yaw bearing lubricating system of wind driven generator principal shaft according to claim 1, it is characterised in that：The lubrication
Fuel tank（1）Bottom be provided with leakage fluid dram（14）.
6. the yaw bearing lubricating system of wind driven generator principal shaft according to claim 1, it is characterised in that：The lubrication
Fuel tank（1）Side is also respectively provided with liquidometer（15）, liquid level alarming switch（16）With the thermometer of detection fuel tank internal temperature
（17）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820653979.6U CN208123853U (en) | 2018-05-04 | 2018-05-04 | A kind of yaw bearing lubricating system of wind driven generator principal shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820653979.6U CN208123853U (en) | 2018-05-04 | 2018-05-04 | A kind of yaw bearing lubricating system of wind driven generator principal shaft |
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| Publication Number | Publication Date |
|---|---|
| CN208123853U true CN208123853U (en) | 2018-11-20 |
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ID=64185682
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820653979.6U Expired - Fee Related CN208123853U (en) | 2018-05-04 | 2018-05-04 | A kind of yaw bearing lubricating system of wind driven generator principal shaft |
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| CN (1) | CN208123853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731806A (en) * | 2019-03-10 | 2019-05-10 | 厦门大钧精密工业有限公司 | A kind of alarm switch Optimum Design machine |
-
2018
- 2018-05-04 CN CN201820653979.6U patent/CN208123853U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731806A (en) * | 2019-03-10 | 2019-05-10 | 厦门大钧精密工业有限公司 | A kind of alarm switch Optimum Design machine |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |