CN114508584B - Gear box lubricating system - Google Patents
Gear box lubricating system Download PDFInfo
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- CN114508584B CN114508584B CN202210203888.3A CN202210203888A CN114508584B CN 114508584 B CN114508584 B CN 114508584B CN 202210203888 A CN202210203888 A CN 202210203888A CN 114508584 B CN114508584 B CN 114508584B
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- oil
- way valve
- oil pump
- conveying
- way
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- 230000001050 lubricating effect Effects 0.000 title description 14
- 239000003921 oil Substances 0.000 claims abstract description 192
- 238000005461 lubrication Methods 0.000 claims abstract description 77
- 239000010687 lubricating oil Substances 0.000 claims abstract description 56
- 238000001914 filtration Methods 0.000 claims description 29
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0405—Monitoring quality of lubricant or hydraulic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0436—Pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0441—Arrangements of pumps
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quality & Reliability (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a gear box lubrication system, comprising: the lubrication system comprises a first internal oil circuit for conveying lubricating oil to lubrication points required by a planet wheel sliding bearing in a gear box, a second internal oil circuit for conveying the lubricating oil to all other lubrication points except the sliding bearing on the gear box, a first conveying oil circuit for conveying the lubricating oil to the second internal oil circuit, and a second conveying oil circuit for conveying the lubricating oil to the first internal oil circuit. According to the invention, different oil conveying ways are respectively adopted for the planet wheel sliding bearing and other lubrication points except the sliding bearing in the gear box, so that higher pressure and flow lubricating oil can be provided for the planet wheel sliding bearing, the bearing capacity of the sliding bearing is improved, and the service life of the sliding bearing is prolonged.
Description
Technical Field
The invention relates to lubrication and cooling of a gear box, in particular to a gear box lubrication system with a planet gear sliding bearing.
Background
At present, a main gear box of a wind driven generator is mainly provided with a rolling bearing, and a sliding bearing is rarely used. The reason for this is that the running conditions of the wind power generator are not stable and that the wind power gearbox bearings may be subjected to extreme loads at very low slip speeds. Sliding bearings are generally used under high to very high rotational speed application conditions. The bearing locations in the gearbox of the wind turbine therefore use almost exclusively rolling bearings.
With the popularization of large megawatt (> 5 MW) gearboxes in the wind power industry and the increase of torque density of the wind power gearboxes, gearbox planet wheel sliding bearings are beginning to be applied in the wind power industry. However, as the machine type is continuously increased, the blades are continuously increased, and the load generated in the installation process of the blades and the special working conditions such as various extremely low speeds, heavy loads and no lubrication are caused by running in different special environments and under special working conditions, so that the special working conditions all provide challenges for the application of the sliding bearing to the wind power main gear box. When the sliding bearing is used, the lubricating requirements on the sliding bearing under different working conditions are required to be met, so that the failure of the sliding bearing is delayed, and the service life of equipment is prolonged.
The existing gear box lubrication system is a mature system designed for the rolling bearing, when the planet wheel adopts the sliding bearing, the wind power gear box adopts the bevel gear, and the sliding bearing also bears the overturning moment when bearing the torque, so that the running condition of the sliding bearing of the wind power gear box becomes worse than that of the sliding bearing used for the conventional industrial gear box. During shutdown and startup of the wind turbine, particularly during wind farm outage conditions, wind turbine gearbox bearings may be subjected to extreme loads at very low sliding speeds, and these extreme conditions have not been fully considered by existing gearbox lubrication systems and improvements are urgently needed.
The better lubrication mode of the sliding bearing is to use higher pressure and stable oil supply to form good lubrication for the sliding bearing, but the existing oil way adopts an open oil way because of adopting a rolling bearing lubrication cooling mode, namely, all parts of the gear box use the same lubrication oil way, share one set of open lubrication channel, and the pressure of the lubricating oil reaching the planet wheel sliding bearing is low and difficult to control. Meanwhile, the planet wheel sliding bearing and other lubrication points share the lubricating oil pump, so that the function of independently controlling lubrication and cooling of the planet wheel sliding bearing is not realized.
Disclosure of Invention
The invention provides a gear box lubrication system, which can provide controllable high-pressure and high-flow lubricating oil for a gear box planetary gear sliding bearing during normal operation of a fan, so that the bearing capacity of the sliding bearing is improved, and the service life of the sliding bearing is prolonged; under extreme conditions such as wind field outage, can provide dedicated independent lubrication for slide bearing, it is more nimble and economical energy-conserving than whole lubrication that provides for gear box lubricating system.
In order to achieve the above object, the present invention provides a lubrication system for a gear box, the gear box includes a planet wheel and an oil pool, the planet wheel adopts a sliding bearing, the oil pool stores lubricating oil, the lubrication system includes:
the first internal oil way is positioned in the gear box and is used for conveying the lubricating oil to a lubricating point required by a gear box planet wheel sliding bearing;
A second internal oil passage located inside the gear case for delivering the lubricating oil to all other lubrication points on the gear case except the sliding bearing;
The input end of the first oil pump is connected with the oil pool, and the output end of the first oil pump is connected with the input end of the first multi-way valve through the first filtering unit; the output end of the first multi-way valve is connected with the second internal oil circuit; the first oil pump, the first filtering unit and the first multi-way valve form a first conveying oil way;
The input end of the second oil pump is connected with the output end of the first multi-way valve through a second multi-way valve, and the output end of the second oil pump is connected with the first internal oil circuit through a third multi-way valve; the first oil pump, the first filtering unit, the first multi-way valve, the second oil pump and the third multi-way valve form a second conveying oil path.
Further, the input end of the second oil pump is connected with the oil pool through the second multi-way valve, and the output end of the second oil pump is connected with the input end of the first filtering unit through the third multi-way valve; the output end of the first multi-way valve is also connected with the first internal oil circuit; the second multi-way valve, the second oil pump, the third multi-way valve, the first filtering unit and the first multi-way valve form a third conveying oil way.
Further, the gear box lubrication system further comprises a first temperature control unit, one end of the first temperature control unit is connected with the output end of the first multi-way valve, and the other end of the first temperature control unit is connected with the second internal oil circuit and the input end of the second multi-way valve respectively and used for adjusting the temperature of lubricating oil.
Further, the gearbox lubrication system further comprises a first temperature control unit, wherein the first temperature control unit is arranged between the first filtering unit and the first multi-way valve.
Further, the gear box lubrication system further comprises an emergency power supply, wherein the emergency power supply is respectively connected with the first oil pump and the second oil pump, and the first oil pump and the second oil pump can be driven independently or in a combined mode.
Further, the gearbox lubrication system further comprises:
a pressure sensor disposed between the first multi-way valve and the second internal oil passage;
The control unit is connected with the pressure sensor, the emergency power supply, the first multi-way valve, the second multi-way valve and the third multi-way valve and is used for controlling the first multi-way valve, the second multi-way valve, the third multi-way valve and the emergency power supply according to the pressure of the pressure sensor so as to realize the switching of the first conveying oil way, the second conveying oil way and the third conveying oil way.
Further, the gear box lubrication system further comprises a second filtering unit, one end of the second filtering unit is connected with the oil pool, and the other end of the second filtering unit is connected with the input end of the second multi-way valve; the second filtering unit, the second multi-way valve, the second oil pump and the third multi-way valve form a fourth conveying oil way.
Further, the gearbox lubrication system further includes a second temperature control unit located between the second filter unit and the second multi-way valve.
Further, the gear box lubrication system further comprises an emergency power supply, wherein the emergency power supply is connected with the first oil pump and the second oil pump respectively and used for driving the first oil pump and the second oil pump independently or in a combined mode.
Further, the gearbox lubrication system further comprises:
a pressure sensor disposed between the first multi-way valve and the second internal oil passage;
The control unit is used for controlling the first multi-way valve, the second multi-way valve, the third multi-way valve and the emergency power supply according to the pressure of the pressure sensor, so that the first conveying oil way, the second conveying oil way and the fourth conveying oil way are switched.
The invention has the following beneficial effects:
The invention is provided with a first internal oil way for providing lubricating oil for the planetary gear sliding bearing of the gear box, a second oil way for providing lubricating oil for other lubrication points except the sliding bearing, a second conveying oil way and a first conveying oil way for providing lubricating oil for the first internal oil way and the second internal oil way respectively, and the two lubricating oil ways can provide lubricating oil with higher pressure and flow for the planetary gear sliding bearing, so that the bearing capacity of the sliding bearing is improved, and the service life of the sliding bearing is prolonged.
The invention adopts two oil pumps, and can independently control the lubrication function of the planet wheel sliding bearing.
The invention adopts a combination form of a plurality of multi-way valves, can provide special independent lubrication for the sliding bearing under extreme conditions such as wind field outage, and is more flexible, economical and energy-saving than the whole lubrication system for the gear box.
Drawings
Fig. 1 is a schematic structural diagram of a lubrication system for a gearbox according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a lubrication system for a gearbox according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a lubrication system for a gearbox according to a second embodiment of the present invention.
Fig. 4 is a schematic structural view of a gear box lubrication system according to a third embodiment of the present invention.
Fig. 5 is a schematic structural view of a lubrication system for a gearbox according to a fourth embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples. Advantages and features of the invention will become more apparent from the following description and from the claims. It is noted that the drawings are in a very simplified form and utilize non-precise ratios, and are intended to facilitate a convenient, clear, description of the embodiments of the invention.
The gear box 1 comprises a planet wheel and an oil pool 14, the planet wheel adopts a sliding bearing, lubricating oil is stored in the oil pool 14, and the gear box lubricating system absorbs the lubricating oil from the oil pool 14 and respectively conveys the lubricating oil to the planet wheel sliding bearing and other lubricating points except the planet wheel sliding bearing in the gear box 1, so that good lubrication is provided for the planet wheel sliding bearing.
Example 1
An embodiment of the present invention provides a gear box lubrication system, as shown in fig. 1-2, including:
a first internal oil circuit 7, located inside said gearbox 1, is used for delivering said lubricating oil to the lubrication points required for the planetary sliding bearings of the gearbox 1.
A second internal oil passage 2, which is located inside the gear case 1, is used for conveying the lubricating oil to other lubrication points on the gear case 1 except the sliding bearings.
The input end of the first oil pump 5 is connected with the oil pool 14, and the output end of the first oil pump 5 is connected with the input end of the first multi-way valve 10 through the first filtering unit 4; the output end of the first multi-way valve 10 is connected with the second internal oil circuit 2; the first oil pump 5, the first filtering unit 4 and the first multi-way valve 10 form a first oil conveying path. The lubricating oil is conveyed to the second internal oil circuit 2 through the first conveying oil circuit to lubricate other lubrication points except the planet wheel sliding bearings in the gear box 1.
The input end of the second oil pump 6 is connected with the output end of the first multi-way valve 10 through a second multi-way valve 9, and the output end of the second oil pump 6 is connected with the first internal oil circuit 7 through a third multi-way valve 8; the first oil pump 5, the first filtering unit 4, the first multi-way valve 10, the second multi-way valve 9, the second oil pump 6 and the third multi-way valve 8 form a second conveying oil way, and the second conveying oil way is a special lubricating oil way for a planet wheel sliding bearing of the gear box 1. The second oil pump 6 controls the oil pressure and flow rate of the lubricating oil in the second delivery oil passage through which the lubricating oil is delivered to the first internal oil passage 7, providing higher pressure and flow rate of lubricating oil for the planetary sliding bearings in the gear box 1.
The planet wheel sliding bearing and other lubrication points of the gear box 1 adopt two lubrication oil ways, so that the lubrication oil conveyed to the planet wheel sliding bearing has higher pressure and flow, the bearing capacity of the sliding bearing is improved, and the service life of the sliding bearing is prolonged.
The input end of the second oil pump 6 is also connected with the oil tank 14 through the second multi-way valve 9, and the output end of the second oil pump 6 is connected with the input end of the first filtering unit 4 through the third multi-way valve 8; the output end of the first multi-way valve 10 is also connected with the first internal oil circuit 7; the second multi-way valve 9, the second oil pump 6, the third multi-way valve 8, the first filtering unit 4 and the first multi-way valve 10 form a third conveying oil way, and the third conveying oil way is a special lubricating oil way for a planet wheel sliding bearing of the gear box 1 in a fan extreme state. At this time, the second oil pump 6 is used as a power pump, and independently provides higher pressure and flow of lubricating oil for the planetary gear sliding bearing, and the lubricating oil is conveyed to the first internal oil circuit 7 through the third conveying oil circuit, so that the independent lubrication function of the planetary gear sliding bearing in the gear box 1 is realized.
The emergency power supply 12 is connected with the first oil pump 5 and the second oil pump 6 respectively, and can drive the first oil pump 5 and the second oil pump 6 independently or in combination. The emergency power supply 12 provides a standby power supply for the gearbox lubrication system in an extreme state, such as when the wind farm power supply is interrupted, so as to realize the integral lubrication of the gearbox 1 or the independent lubrication function of the planet wheel sliding bearing.
A pressure sensor 11, the pressure sensor 11 is disposed between the first multi-way valve 10 and the second internal oil passage 2, for detecting the pressure of the lubricating oil delivered to the second internal oil passage 2.
And one end of the first temperature control unit 3 is connected with the output end of the first multi-way valve 10, and the other end of the first temperature control unit 3 is respectively connected with the second internal oil circuit 2 and the input end of the second multi-way valve 9, and is used for adjusting the temperature of the lubricating oil. After passing through the first temperature control unit 3, one of the lubricating oil is conveyed to the second internal oil path 2 through the pressure sensor 11, and the other lubricating oil is conveyed to the first internal oil path 7 through the second multi-way valve 9, the second oil pump 6 and the third multi-way valve 8.
And the control unit 13 is connected with the pressure sensor 11, the emergency power supply 12, the first multi-way valve 10, the second multi-way valve 9 and the third multi-way valve 8, and is used for controlling the first multi-way valve 10, the second multi-way valve 9, the third multi-way valve 8 and the emergency power supply 12 according to the pressure of the pressure sensor 11 to realize the switching of the first conveying oil way, the second conveying oil way and the third conveying oil way. The special lubricating oil way for the planet wheel sliding bearing of the gear box 1 is switched under the normal state or the extreme state of the fan by adopting the combination mode of the first multi-way valve 10, the second multi-way valve 9 and the third multi-way valve 8, namely the second conveying oil way and the third conveying oil way are switched, and a filtering unit is not required to be arranged independently.
The gearbox lubrication system provided in this embodiment can lubricate the whole gearbox 1 or individually lubricate the planetary sliding bearing when the fan is in a normal state or in an extreme state.
As shown in fig. 1, the lubrication system of the gear box is a schematic structural diagram for lubricating the whole gear box 1 when the fan is operated in a normal state or an extreme state of the fan. The first oil pump 5 and the second oil pump 6 work simultaneously, the first oil pump 5 sucks lubricating oil from an oil tank 14, the lubricating oil is filtered by the first filtering unit 4 and then is input into the first multi-way valve 10, is output by the first multi-way valve 10 and then is input into the first temperature control unit 3 for heating, and is divided into two paths, wherein one path flows into the second internal oil path 2 through the pressure sensor 11 for lubricating other lubrication points except a planet wheel sliding bearing in the gear box 1, the other path flows into the second oil pump 6 through the second multi-way valve 9, and the second oil pump 6 sucks the lubricating oil and is input into the first internal oil path 7 through the third multi-way valve 8 for lubricating the planet wheel sliding bearing in the gear box 1.
As shown in fig. 2, a schematic structural diagram of the gear box lubrication system for individually lubricating the planetary gear sliding bearing when the fan is operated in a normal state or an extreme state of the fan is shown. The first oil pump 5 is not operated and the second oil pump 6 is operated. The second oil pump 6 sucks lubricating oil from the oil sump 14 through the second multi-way valve 9, the lubricating oil is input to the first filtering unit 4 through the third multi-way valve 8, and then is input to the first internal oil path 7 through the first multi-way valve 10, so as to lubricate a planet wheel sliding bearing in the gear box 1.
Example two
On the basis of the first embodiment, in the present embodiment, as shown in fig. 3, the first temperature control unit 3 is disposed between the first filtering unit and the first multi-way valve 10, and adjusts the temperature of the lubricating oil. When the gear box lubrication system lubricates the gear box 1 integrally or independently for the planet wheel sliding bearing of the gear box 1, the lubricating oil is filtered by the first filtering unit 4 and is subjected to temperature regulation by the first temperature control unit 3, and is input into the second internal oil circuit 2 and/or the first internal oil circuit 7. In this embodiment, the special lubrication oil path for the planetary gear sliding bearing of the gear box 1 is switched under the normal state or the extreme state of the fan, that is, the first conveying oil path, the second conveying oil path and the third conveying oil path are switched, and a filtering unit and a temperature control unit are not required to be separately arranged.
Example III
On the basis of the first embodiment, in this embodiment, as shown in fig. 4, the gear box lubrication system further includes a second filter unit 15, and the second filter unit 15 is disposed between the oil sump 14 and the second multi-way valve 9. The second filtering unit 15, the second multi-way valve 9, the second oil pump 6 and the third multi-way valve 8 form a fourth conveying oil way, and the fourth conveying oil way is a lubricating oil way special for a planet wheel sliding bearing of the gear box 1. In this embodiment, the dedicated lubrication oil paths for the planetary gear sliding bearings of the gear case 1 are switched under the normal state or the extreme state of the fan, and only the first, second and fourth transmission oil paths are switched. After being filtered by the second filtering unit 15, the lubricating oil is input into the second oil pump 6 through the second multi-way valve 9, the lubricating oil is output from the second oil pump 6 and is directly input into the first internal oil circuit 7 through the third multi-way valve 8, and the transmission path of the lubricating oil is shortened without passing through the first filtering unit 4 and the first multi-way valve 10.
Example IV
In the third embodiment, as shown in fig. 5, the gearbox lubrication system further includes a second temperature control unit 16, where the second temperature control unit 16 is disposed between the second filter unit 15 and the second multi-way valve 9. When the planet wheel sliding bearing of the gear box lubricating system is independently lubricated, an independent temperature adjusting function of the gear box lubricating system is added.
The invention is provided with a first internal oil circuit 7 for providing lubricating oil for a sliding bearing of a planet wheel in the gear box 1, a second oil circuit for providing lubricating oil for other lubricating points of the planet wheel in the gear box 1 except the sliding bearing, and a second conveying oil circuit or a third conveying oil circuit or a fourth conveying oil circuit for providing lubricating oil for the first internal oil circuit 7 and the second internal oil circuit 2, and a first conveying oil circuit for providing lubricating oil for the second internal oil circuit 2. According to the invention, different conveying oil ways are respectively adopted for the planet wheel sliding bearing in the gear box 1 and other lubrication points except the sliding bearing, and the first oil pump 5 and the second oil pump 6 are adopted to respectively control the pressure and the flow of the lubricating oil in each conveying oil way, so that the lubricating oil with higher pressure and flow can be provided for the planet wheel sliding bearing, the bearing capacity of the sliding bearing is improved, and the service life of the sliding bearing is prolonged. In addition, the invention adopts a combination form of a plurality of multi-way valves, can provide special independent lubrication for the sliding bearing under extreme conditions such as wind field outage, and is more flexible, economical and energy-saving than providing lubrication for a gear box lubrication system as a whole.
While the present invention has been described in detail through the foregoing description of the preferred embodiment, it should be understood that the foregoing description is not to be considered as limiting the invention. Many modifications and substitutions of the present invention will become apparent to those of ordinary skill in the art upon reading the foregoing. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (10)
1. A gearbox lubrication system, the gearbox contains planet wheel and oil sump, the planet wheel adopts slide bearing, store lubricating oil in the oil sump, its characterized in that, lubrication system contains:
the first internal oil way is positioned in the gear box and used for conveying the lubricating oil to a planet wheel sliding bearing in the gear box;
A second internal oil passage located inside the gear case for delivering the lubricating oil to all other lubrication points on the gear case except the sliding bearing;
The input end of the first oil pump is connected with the oil pool, and the output end of the first oil pump is connected with the input end of the first multi-way valve through the first filtering unit; the output end of the first multi-way valve is connected with the second internal oil circuit; the first oil pump, the first filtering unit and the first multi-way valve form a first conveying oil way;
The input end of the second oil pump is connected with the output end of the first multi-way valve through a second multi-way valve, and the output end of the second oil pump is connected with the first internal oil circuit through a third multi-way valve; the first oil pump, the first filtering unit, the first multi-way valve, the second oil pump and the third multi-way valve form a second conveying oil path.
2. The gearbox lubrication system of claim 1, wherein an input of the second oil pump is further connected to the sump via the second multi-way valve, and an output of the second oil pump is further connected to an input of the first filter unit via the third multi-way valve; the output end of the first multi-way valve is also connected with the first internal oil circuit; the second multi-way valve, the second oil pump, the third multi-way valve, the first filtering unit and the first multi-way valve form a third conveying oil way.
3. The gear box lubrication system of claim 2, further comprising a first temperature control unit, wherein one end of the first temperature control unit is connected to the output end of the first multi-way valve, and the other end of the first temperature control unit is connected to the second internal oil path and the input end of the second multi-way valve, respectively, for adjusting the temperature of the lubricating oil.
4. The gearbox lubrication system of claim 2, further comprising a first temperature control unit disposed between the first filter unit and the first multi-way valve.
5. The gearbox lubrication system of claim 2, further comprising an emergency power source connected to the first oil pump and the second oil pump, respectively, for driving the first oil pump and the second oil pump independently or in combination.
6. The gearbox lubrication system of claim 5, further comprising:
a pressure sensor disposed between the first multi-way valve and the second internal oil passage;
The control unit is used for controlling the first multi-way valve, the second multi-way valve, the third multi-way valve and the emergency power supply according to the pressure of the pressure sensor, so that the first conveying oil way, the second conveying oil way and the third conveying oil way are switched.
7. The gearbox lubrication system of claim 1, further comprising a second filter unit having one end connected to the sump and another end connected to an input of the second multi-way valve; the second filtering unit, the second multi-way valve, the second oil pump and the third multi-way valve form a fourth conveying oil way.
8. The gearbox lubrication system of claim 7, further comprising a second temperature control unit located between the second filter unit and the second multi-way valve.
9. The gearbox lubrication system of claim 7, further comprising an emergency power source connected to the first oil pump and the second oil pump, respectively, for driving the first oil pump and the second oil pump independently or in combination.
10. The gearbox lubrication system of claim 9, further comprising:
a pressure sensor disposed between the first multi-way valve and the second internal oil passage;
The control unit is used for controlling the first multi-way valve, the second multi-way valve, the third multi-way valve and the emergency power supply according to the pressure of the pressure sensor, so that the first conveying oil way, the second conveying oil way and the fourth conveying oil way are switched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210203888.3A CN114508584B (en) | 2022-03-03 | 2022-03-03 | Gear box lubricating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210203888.3A CN114508584B (en) | 2022-03-03 | 2022-03-03 | Gear box lubricating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114508584A CN114508584A (en) | 2022-05-17 |
| CN114508584B true CN114508584B (en) | 2024-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210203888.3A Active CN114508584B (en) | 2022-03-03 | 2022-03-03 | Gear box lubricating system |
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| CN (1) | CN114508584B (en) |
Citations (2)
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| CN101960178A (en) * | 2008-09-03 | 2011-01-26 | 三菱重工业株式会社 | Speed-increasing gear lubrication device and method |
| CN103115129A (en) * | 2013-02-27 | 2013-05-22 | 郑州机械研究所 | High-power gear speed regulating device |
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| CN201381952Y (en) * | 2009-04-30 | 2010-01-13 | 哈尔滨哈飞工业有限责任公司 | Wind turbine generator system gear box lubricating system |
| JP5133958B2 (en) * | 2009-10-06 | 2013-01-30 | 新潟原動機株式会社 | Gas turbine equipment |
| US20120241258A1 (en) * | 2011-03-23 | 2012-09-27 | Pradip Radhakrishnan Subramaniam | Lubricant supply system and method for controlling gearbox lubrication |
| KR101588683B1 (en) * | 2015-02-27 | 2016-01-27 | 삼성중공업 주식회사 | Cooling lubrication System for wind generating gearbox |
| CN104696496B (en) * | 2015-03-13 | 2017-09-19 | 中国船舶重工集团海装风电股份有限公司 | A kind of aerogenerator unit speed-up gearbox cooling and lubricating system and its low-temperature start method |
| CN105156646B (en) * | 2015-08-14 | 2018-07-27 | 青岛大学 | Lubricating system of wind power gear box |
| DE102016221756A1 (en) * | 2016-11-07 | 2018-05-09 | Zf Friedrichshafen Ag | Arrangement for mounting a planetary gear |
| CN206655953U (en) * | 2017-04-06 | 2017-11-21 | 国电联合动力技术有限公司 | A kind of wind turbine generator system gear box lubricating system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101960178A (en) * | 2008-09-03 | 2011-01-26 | 三菱重工业株式会社 | Speed-increasing gear lubrication device and method |
| CN103115129A (en) * | 2013-02-27 | 2013-05-22 | 郑州机械研究所 | High-power gear speed regulating device |
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