CN111120226A - Flexible slewing bearing system based on tilting pad sliding bearing combined structure - Google Patents
Flexible slewing bearing system based on tilting pad sliding bearing combined structure Download PDFInfo
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- CN111120226A CN111120226A CN201911257638.2A CN201911257638A CN111120226A CN 111120226 A CN111120226 A CN 111120226A CN 201911257638 A CN201911257638 A CN 201911257638A CN 111120226 A CN111120226 A CN 111120226A
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- tilting pad
- bearing
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- tilting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/50—Maintenance or repair
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/26—Systems consisting of a plurality of sliding-contact bearings
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
Abstract
The invention relates to a flexible slewing bearing system based on a tilting pad sliding bearing combined structure, which can change the bearing direction of a bearing according to the change of the external load direction by using a sliding bearing with larger bearing capacity and a tilting pad structure with a modular design, is more suitable for responding to a complex load impact scene with randomly changed direction, and solves the problems of large mechanical vibration, large noise, quick mechanical failure and difficult maintenance in the prior art.
Description
Technical Field
The invention relates to the technical field of special engineering machinery, in particular to a flexible slewing bearing system based on a tilting pad sliding bearing combined structure.
Background
At present, the traditional rolling bearing system is mainly adopted in the rotary support system of a plurality of large-scale engineering machines (such as wind driven generators), and the bearing system has wide and mature application, moderate price and reliable operation under the condition of stable mechanical stress. However, with the development of wind driven generators and marine machinery, the rolling rotary support has many problems in the use process of the fields, which mainly show that the mechanical vibration is increased, the noise is increased, the mechanical failure is accelerated, and the maintenance is difficult. According to the application scenes of the machines, the wind driven generator and the marine machine are mainly applied to the field working conditions greatly influenced by wind power and sea waves, and the bearing system bears the impact of uncertain alternating loads such as wind power, sea waves and the like at any time. The size, direction and random variation of the load are difficult to determine, so that the stress of the bearing system applied in the scene is far more complicated than that in a stable scene, and the application of the traditional rolling bearing in the complicated scene has many problems, such as: the equipment vibration noise is large, the service life of the equipment is short, and the maintenance cost is increased.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a flexible slewing bearing system based on a tilting pad sliding bearing combined structure, which is more suitable for responding to a complex load impact scene with randomly changed direction, wherein the bearing can change the bearing direction according to the change of the external load direction by using a sliding bearing with larger bearing capacity to match with a tilting pad structure with a modular design.
In order to achieve the above purpose, the technical scheme adopted by the invention comprises the following steps:
a flexible slewing bearing system based on a tilting pad sliding bearing combined structure comprises a first rack, a second rack, an upper thrust auxiliary rack, a lower thrust axial tilting pad sliding bearing, an upper thrust axial tilting pad sliding bearing, a radial tilting pad sliding bearing and a transmission device;
the first rack is an integral fixed rack comprising a first horizontal connecting surface and a first vertical connecting surface, and the first rack is fixedly connected to an equipment base or a tower drum;
the second machine frame is an integral rotatable machine frame comprising a second horizontal connecting surface, a second vertical connecting surface and a bearing surface, the second horizontal connecting surface of the second machine frame is rotatably connected with the first horizontal connecting surface of the first machine frame through a lower thrust axial tilting pad sliding bearing, the second vertical connecting surface of the second machine frame is rotatably connected with the first vertical connecting surface of the first machine frame through a radial tilting pad sliding bearing, and the second machine frame is connected with a driving source through a transmission device;
the upper thrust auxiliary frame is an integral fixed frame comprising a third horizontal connecting surface, the upper thrust auxiliary frame is fixedly connected to the first frame, the equipment base or the tower drum, and the third horizontal connecting surface of the upper thrust auxiliary frame is rotatably connected with the bearing surface of the second frame through an upper thrust axial tilting pad sliding bearing.
Further, the lower thrust axial tilting pad sliding bearing comprises a lower thrust axial bearing base and a plurality of groups of axial lower thrust tilting pads which are uniformly arranged on the lower thrust axial bearing base in a surrounding mode; the lower thrust axial bearing base is fixedly connected to a first horizontal connecting surface of the first rack, and the friction surface of the axial lower thrust tilting pad is in sliding contact connection with a second horizontal connecting surface of the second rack;
the upper thrust axial tilting pad sliding bearing comprises an upper thrust axial bearing base and a plurality of groups of axial thrust tilting pads which are uniformly arranged on the upper thrust axial bearing base in a surrounding manner; the upper thrust axial bearing base is detachably and fixedly connected to a third horizontal connecting surface of the upper thrust auxiliary rack, and the friction surface of the axial upper thrust tilting pad is in sliding contact connection with the bearing surface of the second rack;
the radial tilting pad sliding bearing comprises a radial bearing base and a plurality of groups of radial tilting pads and radial braking tilting pads which are uniformly arranged on the radial bearing base in a surrounding manner; the radial bearing base is fixedly connected to a first vertical connecting surface of the first rack, and the friction surfaces of the radial tilting pad and the radial braking tilting pad are in sliding contact connection with a second vertical connecting surface of the second rack; the radial braking tilting pad is a tilting pad with a friction surface which is partially or completely provided with a brake pad;
the transmission device comprises a speed reducer, a driving gear connected to the output end of the speed reducer and a gear ring matched with the driving gear, the speed reducer and the driving gear are fixedly arranged on the second rack, and the gear ring is fixedly arranged on the first rack; the rotary power drives the driving gear to rotate along the gear ring in a meshed mode through the speed reducer, and the second rack is driven to do rotary motion relative to the first rack and the equipment base or the tower drum.
Furthermore, the radial bearing base is of an upper and lower double-row installation position structure, and the radial tilting pads and the radial braking tilting pads are arranged in the upper and lower double-row installation positions of the radial bearing base in parallel; or, the radial bearing base comprises two groups of sub-bases which are separately arranged in parallel up and down, and the radial tilting pad and the radial braking tilting pad are respectively arranged in the two groups of sub-bases.
Furthermore, each group of the tilting pads is also provided with a pressure sensing device and a regulating device; the pressure sensing device monitors pressure data of the corresponding tilting pad in real time, and the regulating and controlling device performs pressure compensation on the tilting pad according to the tilting pad real-time pressure data obtained by the pressure sensing device, so that the stress balance of the tilting pad is maintained, and the position of the second rack relative to the first rack and the equipment base or the tower drum is kept stable.
Further, the slewing bearing system further comprises an intelligent control module, and the intelligent control module receives the tilting pad pressure data obtained by the pressure sensing device and automatically adjusts the pressure compensation of the adjusting and controlling device on the tilting pad by combining the gas phase, geological and/or sea condition information of the position where the equipment is located.
Further, the tilting pad is a four-way tilting pad supported by a central hemispherical cambered surface.
A maintenance method for a flexible slewing bearing system based on a tilting pad sliding bearing combined structure comprises the following steps:
s1, judging the tilting pad needing to be maintained according to tilting pad pressure data fed back by the pressure sensing device;
s2, detaching the upper thrust auxiliary frame;
s3, replacing the axial upper thrust tilting pad needing to be maintained in the upper thrust axial tilting pad sliding bearing;
s4, lifting the position, corresponding to the position needing to be maintained, of the axial lower thrust tilting pad, the radial tilting pad or the radial braking tilting pad of the second frame through the lifting tool, and replacing the tilting pad needing to be maintained;
and S5, replacing all the tilting pads needing to be repaired, installing a thrust auxiliary frame, and recovering the normal operation of the system.
Further, the method also comprises the following steps: and S6, detecting the replaced tilting pad needing to be maintained, repairing the tilting pad which can be repaired and meets the requirement of continuous use, storing the tilting pad as a spare part, and judging that the tilting pad which can not be continuously used is discarded.
The invention has the beneficial effects that:
the flexible slewing bearing system based on the tilting pad sliding bearing combined structure can completely replace the rolling slewing bearing of the existing system, and solves the problems of large mechanical vibration, large noise, quick mechanical failure and difficult maintenance in the prior art. The slewing bearing system of the invention provides a flexible supporting system, and the bearing capacity is large; the bearing can change the bearing direction according to the change of the external load direction, and can cope with the impact of the load changing the direction randomly; the bearing can be designed in a modularized way, and is convenient to disassemble, assemble and maintain; after a proper sensor control system and a self-learning system are arranged, uncertain loads such as wind power, sea waves and the like can be analyzed and judged, and equipment parameters can be automatically adjusted, so that the fault frequency of the equipment is reduced, the use efficiency is improved, and intelligent automatic operation is realized.
Drawings
Fig. 1 is a schematic view of a first embodiment of the present invention.
Fig. 2 is a schematic top view of a lower thrust axial tilting pad sliding bearing and a radial tilting pad sliding bearing according to a first embodiment of the present invention.
Fig. 3 is an enlarged schematic view of a lower thrust axial tilting pad sliding bearing in a first embodiment of the invention.
Fig. 4 is an enlarged schematic view of the upper thrust axial tilting pad sliding bearing and the radial tilting pad sliding bearing in the first embodiment of the present invention.
Fig. 5 is a schematic diagram of a prior art structure.
Fig. 6 is a schematic view of a second embodiment of the present invention.
Description of the figure numbering: 1-a first frame, 11-a first horizontal connecting surface, 12-a first vertical connecting surface, 2-a second frame, 21-a second horizontal connecting surface, 22-a second vertical connecting surface, 23-a bearing surface, 3-an upper thrust auxiliary frame, 31-a third horizontal connecting surface, 4-a lower thrust axial tilting pad sliding bearing, 41-a lower thrust axial bearing base, 42-an axial lower thrust tilting pad, 421-a friction surface, 5-an upper thrust axial tilting pad sliding bearing, 6-a radial tilting pad sliding bearing, 61-a radial braking tilting pad, 62-a radial friction ring, 601-a pressure sensing device and regulating device, 71-a speed reducer, 72-a driving gear, 73-a gear ring, 8-a tower, 81-a frame, a machine base, a first vertical connecting surface, a second vertical connecting surface, a third vertical connecting surface, a bearing, a lower thrust axial, 91-supporting frame, 92-brake and 93-slewing bearing.
Detailed Description
For a clearer understanding of the contents of the present invention, reference will be made to the accompanying drawings and examples.
Fig. 1 shows a schematic view of a first embodiment of the flexible slewing bearing system based on a tilting pad sliding bearing combined structure of the present invention as a yaw system support of a wind turbine generator, which takes a wind turbine generator system as an application background, and adopts a tilting pad sliding bearing structure as a yaw system support of a wind turbine generator and a blade pitch system of a wind turbine generator, and is mainly characterized in that: the bearing capacity is large; the bearing can change the bearing direction according to the change of the external load direction, and can cope with the impact of the load changing the direction randomly; the bearing can be designed in a modularized way, and is convenient to disassemble, assemble and maintain; after a proper sensor control system and a proper self-learning system are arranged, the bearing can analyze and judge uncertain loads such as wind power and the like and automatically adjust equipment parameters, so that the fault frequency of the equipment is reduced, and the use efficiency is improved; the invention innovatively provides a flexible support system.
The first embodiment of the slewing bearing system shown in fig. 1 to 4 specifically includes: the device comprises a first rack 1, a second rack 2, an upper thrust auxiliary rack 3, a lower thrust axial tilting pad sliding bearing 4, an upper thrust axial tilting pad sliding bearing 5, a radial tilting pad sliding bearing 6 and a transmission device; the first frame 1 is an integral fixed frame comprising a first horizontal connecting surface 11 and a first vertical connecting surface 12, and the first frame 1 is fixedly connected to the tower barrel 8; the second machine frame 2 is an integral rotatable machine frame comprising a second horizontal connecting surface 21, a second vertical connecting surface 22 and a bearing surface 23, the second horizontal connecting surface 21 of the second machine frame 2 is rotatably connected with the first horizontal connecting surface 11 of the first machine frame 1 through a lower thrust axial tilting pad sliding bearing 4, and the second vertical connecting surface 22 of the second machine frame 2 is rotatably connected with the first vertical connecting surface 12 of the first machine frame 1 through a radial tilting pad sliding bearing 6; the upper thrust auxiliary frame 3 is an integral fixed frame comprising a third horizontal connecting surface 31, the upper thrust auxiliary frame 3 is fixedly connected to the first frame 1, and the third horizontal connecting surface 31 of the upper thrust auxiliary frame 3 is rotatably connected with the bearing surface 23 of the second frame 2 through an upper thrust axial tilting pad sliding bearing 5; the lower thrust axial tilting pad sliding bearing 4 comprises a lower thrust axial bearing base 41 and a plurality of groups of axial downward thrust tilting pads 42 which are uniformly arranged on the lower thrust axial bearing base in a surrounding manner; the lower thrust axial bearing base 41 is fixedly connected to the first horizontal connecting surface 11 of the first frame 1, and the friction surface 421 of the axial lower thrust tilting pad 42 is connected with the second horizontal connecting surface 21 of the second frame 2 in a sliding contact manner; the upper thrust axial tilting pad sliding bearing 5 comprises an upper thrust axial bearing base and a plurality of groups of axial thrust tilting pads which are uniformly arranged on the upper thrust axial bearing base in a surrounding manner; the upper thrust axial bearing base is detachably and fixedly connected to a third horizontal connecting surface 31 of the upper thrust auxiliary frame 3, and the friction surface of the axial upper thrust tilting pad is in sliding contact connection with the bearing surface 23 of the second frame 2; the radial tilting pad sliding bearing 6 comprises a radial bearing base and a plurality of groups of radial tilting pads and radial braking tilting pads 61 which are uniformly arranged on the radial bearing base in a surrounding manner, wherein the radial bearing base is of an upper and lower double-row installation position structure, the radial tilting pads and the radial braking tilting pads 61 are arranged in the upper and lower double-row installation positions of the radial bearing base in parallel, or the radial bearing base comprises two groups of sub-bases which are separately arranged in an upper and lower parallel manner, and the radial tilting pads and the radial braking tilting pads 61 are respectively arranged in the two groups of sub-bases; the radial bearing base is fixedly connected to the first vertical connecting surface 12 of the first frame 1, and the friction surfaces of the radial tilting pad and the radial braking tilting pad 61 are connected with the second vertical connecting surface 22 of the second frame 2 in a sliding contact manner; the radial braking tilting pad 61 is a tilting pad with a friction surface which is partially or completely provided with a brake pad; the transmission device comprises a speed reducer 71, a driving gear 72 connected to the output end of the speed reducer and a gear ring 73 matched with the driving gear, the speed reducer 71 and the driving gear 72 are fixedly arranged on the second rack 2, and the gear ring 73 is fixedly arranged on the first rack 1; the rotation power drives the driving gear 72 to rotate along the gear ring 73 through the reducer 71, and drives the second frame 2 to rotate relative to the first frame 1 and the tower 8.
Each set of tilting pads referred to in the above embodiments may further be provided with a pressure sensing device and a regulating device 601; the pressure sensing device monitors pressure data of the corresponding tilting pad in real time, and the regulating and controlling device performs pressure compensation on the tilting pad according to the tilting pad real-time pressure data obtained by the pressure sensing device, so that the stress balance of the tilting pad is maintained, and the position stability of the second frame 2 relative to the first frame 1 and the tower 8 is maintained. On the basis, the system can be further provided with an intelligent control module, and the intelligent control module receives the tilting pad pressure data obtained by the pressure sensing device and automatically adjusts the pressure compensation of the control device on the tilting pad by combining the gas phase, geological and/or sea condition information of the position where the equipment is located.
Fig. 5 is a schematic structural diagram of a prior art in the field, which is different from the technical solution of the embodiment of the present invention, and the supporting frame 91 is directly rotatably connected with the tower 8 through the brake 92 and the slewing bearing 93. The mode is a hard support system, and the problems of large vibration, large noise, quick mechanical failure and difficult maintenance exist in the operation process. The technical solution of the embodiment of the present invention as described above can be used to replace the prior art solution as shown in fig. 5, and the above problems are well solved.
Referring to fig. 6, which is a schematic view of a second embodiment of the flexible slewing bearing system based on the tilting pad sliding bearing combined structure as a yaw system support of a wind turbine generator according to the present invention, a base 81 of the wind turbine generator is fixedly arranged on a second frame 2, and a lower thrust axial tilting pad sliding bearing 4 and a radial tilting pad sliding bearing 6 arranged between a first frame 1 and the second frame 2 are similar to the first embodiment, but an upper thrust auxiliary frame 3 and an upper thrust axial tilting pad sliding bearing 5 are arranged in a manner different from the first embodiment, and the area and the flatness of a bearing surface 23 of the second frame 2 are improved by arranging the flexible slewing bearing system inside a tower 8, which is more beneficial for mounting equipment on the bearing system. Similar to the first embodiment, the radial tilting pad sliding bearing 6 in the second embodiment also comprises a radial braking tilting pad 61, and a ring of radial friction ring 62 is preferably arranged on the friction contact surface of the radial tilting pad sliding bearing and the first machine frame, so that the running stability and the maintainability of the system are improved; each set of tilting pads in the second embodiment is also equipped with a pressure sensing device and a regulating device 601, which can be used for stress adjustment of the tilting pads.
The invention also relates to a maintenance method for the flexible slewing bearing system based on the tilting pad sliding bearing combined structure, which comprises the following steps:
s1, judging the tilting pad needing to be maintained according to tilting pad pressure data fed back by the pressure sensing device;
s2, detaching the upper thrust auxiliary frame;
s3, replacing the axial upper thrust tilting pad needing to be maintained in the upper thrust axial tilting pad sliding bearing;
s4, lifting the position, corresponding to the position needing to be maintained, of the axial lower thrust tilting pad, the radial tilting pad or the radial braking tilting pad of the second frame through the lifting tool, and replacing the tilting pad needing to be maintained;
and S5, replacing all the tilting pads needing to be repaired, installing a thrust auxiliary frame, and recovering the normal operation of the system.
And S6, detecting the replaced tilting pad needing to be maintained, repairing the tilting pad which can be repaired and meets the requirement of continuous use, storing the tilting pad as a spare part, and judging that the tilting pad which can not be continuously used is discarded.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A flexible slewing bearing system based on a tilting pad sliding bearing combined structure comprises a first rack, a second rack, an upper thrust auxiliary rack, a lower thrust axial tilting pad sliding bearing, an upper thrust axial tilting pad sliding bearing, a radial tilting pad sliding bearing and a transmission device;
the first rack is an integral fixed rack comprising a first horizontal connecting surface and a first vertical connecting surface, and the first rack is fixedly connected to an equipment base or a tower drum;
the second machine frame is an integral rotatable machine frame comprising a second horizontal connecting surface, a second vertical connecting surface and a bearing surface, the second horizontal connecting surface of the second machine frame is rotatably connected with the first horizontal connecting surface of the first machine frame through a lower thrust axial tilting pad sliding bearing, the second vertical connecting surface of the second machine frame is rotatably connected with the first vertical connecting surface of the first machine frame through a radial tilting pad sliding bearing, and the second machine frame is connected with a driving source through a transmission device;
the upper thrust auxiliary frame is an integral fixed frame comprising a third horizontal connecting surface, the upper thrust auxiliary frame is fixedly connected to the first frame, the equipment base or the tower drum, and the third horizontal connecting surface of the upper thrust auxiliary frame is rotatably connected with the bearing surface of the second frame through an upper thrust axial tilting pad sliding bearing.
2. The slew support system of claim 1 where the lower thrust axial tilt pad slide bearing comprises a lower thrust axial bearing base and sets of axial lower thrust tilt pads disposed uniformly around the lower thrust axial bearing base; the lower thrust axial bearing base is fixedly connected to a first horizontal connecting surface of the first rack, and the friction surface of the axial lower thrust tilting pad is in sliding contact connection with a second horizontal connecting surface of the second rack;
the upper thrust axial tilting pad sliding bearing comprises an upper thrust axial bearing base and a plurality of groups of axial thrust tilting pads which are uniformly arranged on the upper thrust axial bearing base in a surrounding manner; the upper thrust axial bearing base is detachably and fixedly connected to a third horizontal connecting surface of the upper thrust auxiliary rack, and the friction surface of the axial upper thrust tilting pad is in sliding contact connection with the bearing surface of the second rack;
the radial tilting pad sliding bearing comprises a radial bearing base and a plurality of groups of radial tilting pads and radial braking tilting pads which are uniformly arranged on the radial bearing base in a surrounding manner; the radial bearing base is fixedly connected to a first vertical connecting surface of the first rack, and the friction surfaces of the radial tilting pad and the radial braking tilting pad are in sliding contact connection with a second vertical connecting surface of the second rack; the radial braking tilting pad is a tilting pad with a friction surface which is partially or completely provided with a brake pad;
the transmission device comprises a speed reducer, a driving gear connected to the output end of the speed reducer and a gear ring matched with the driving gear, the speed reducer and the driving gear are fixedly arranged on the second rack, and the gear ring is fixedly arranged on the first rack; the rotary power drives the driving gear to rotate along the gear ring in a meshed mode through the speed reducer, and the second rack is driven to do rotary motion relative to the first rack and the equipment base or the tower drum.
3. The slewing bearing system of claim 2, wherein the radial bearing base is a double row up and down mounting structure, and the radial tilting pad and the radial braking tilting pad are arranged in parallel in the double row up and down mounting structure of the radial bearing base; or, the radial bearing base comprises two groups of sub-bases which are separately arranged in parallel up and down, and the radial tilting pad and the radial braking tilting pad are respectively arranged in the two groups of sub-bases.
4. The slewing bearing system of claim 2, wherein each set of tilting pads is further provided with pressure sensing means and regulating means; the pressure sensing device monitors pressure data of the corresponding tilting pad in real time, and the regulating and controlling device performs pressure compensation on the tilting pad according to the tilting pad real-time pressure data obtained by the pressure sensing device, so that the stress balance of the tilting pad is maintained, and the position of the second rack relative to the first rack and the equipment base or the tower drum is kept stable.
5. The system of claim 4, further comprising an intelligent control module that receives the tilting pad pressure data from the pressure sensing device and automatically adjusts the pressure compensation of the tilting pad by the control device in conjunction with gas phase, geological and/or sea state information of the location of the apparatus.
6. The slewing bearing system of claim 2, wherein said tilting pads are four-way tilting pads supported by a central hemispherical arc.
7. A maintenance method for a flexible slewing bearing system based on a tilting pad sliding bearing combined structure comprises the following steps:
s1, judging the tilting pad needing to be maintained according to tilting pad pressure data fed back by the pressure sensing device;
s2, detaching the upper thrust auxiliary frame;
s3, replacing the axial upper thrust tilting pad needing to be maintained in the upper thrust axial tilting pad sliding bearing;
s4, lifting the position, corresponding to the position needing to be maintained, of the axial lower thrust tilting pad, the radial tilting pad or the radial braking tilting pad of the second frame through the lifting tool, and replacing the tilting pad needing to be maintained;
and S5, replacing all the tilting pads needing to be repaired, installing a thrust auxiliary frame, and recovering the normal operation of the system.
8. The method of claim 7, further comprising the step of: and S6, detecting the replaced tilting pad needing to be maintained, repairing the tilting pad which can be repaired and meets the requirement of continuous use, storing the tilting pad as a spare part, and judging that the tilting pad which can not be continuously used is discarded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911257638.2A CN111120226B (en) | 2019-12-10 | 2019-12-10 | Flexible slewing bearing system based on tilting pad sliding bearing combined structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911257638.2A CN111120226B (en) | 2019-12-10 | 2019-12-10 | Flexible slewing bearing system based on tilting pad sliding bearing combined structure |
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| CN111120226A true CN111120226A (en) | 2020-05-08 |
| CN111120226B CN111120226B (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005016156A1 (en) * | 2005-01-11 | 2006-10-12 | Klinger, Friedrich, Prof. Dr. Ing. | Wind energy plant e.g. for generating electricity, has tower head over engine and gear motors with propelable wind direction adjusts tower with sliding bearing elements which slide on bearing ring |
| AU2009348572A1 (en) * | 2009-06-24 | 2010-12-29 | Mitsubishi Heavy Industries, Ltd. | Wind-driven generator device |
| CN202273816U (en) * | 2011-09-29 | 2012-06-13 | 华锐风电科技(集团)股份有限公司 | Slide bearing for yaw system |
| US9995283B2 (en) * | 2016-03-14 | 2018-06-12 | Siemens Aktiengesellschaft | Sliding bearing arrangement for a wind turbine |
| CN109072885A (en) * | 2016-03-23 | 2018-12-21 | 远景能源（江苏）有限公司 | Wind turbine including Yaw bearing system |
-
2019
- 2019-12-10 CN CN201911257638.2A patent/CN111120226B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005016156A1 (en) * | 2005-01-11 | 2006-10-12 | Klinger, Friedrich, Prof. Dr. Ing. | Wind energy plant e.g. for generating electricity, has tower head over engine and gear motors with propelable wind direction adjusts tower with sliding bearing elements which slide on bearing ring |
| AU2009348572A1 (en) * | 2009-06-24 | 2010-12-29 | Mitsubishi Heavy Industries, Ltd. | Wind-driven generator device |
| CN202273816U (en) * | 2011-09-29 | 2012-06-13 | 华锐风电科技(集团)股份有限公司 | Slide bearing for yaw system |
| US9995283B2 (en) * | 2016-03-14 | 2018-06-12 | Siemens Aktiengesellschaft | Sliding bearing arrangement for a wind turbine |
| CN109072885A (en) * | 2016-03-23 | 2018-12-21 | 远景能源（江苏）有限公司 | Wind turbine including Yaw bearing system |
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| Publication number | Publication date |
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| CN111120226B (en) | 2021-06-22 |
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