CN205118002U - Single -point support bearings structure for wind generating set permanent magnet generator - Google Patents

Single -point support bearings structure for wind generating set permanent magnet generator Download PDF

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Publication number
CN205118002U
CN205118002U CN201520820408.3U CN201520820408U CN205118002U CN 205118002 U CN205118002 U CN 205118002U CN 201520820408 U CN201520820408 U CN 201520820408U CN 205118002 U CN205118002 U CN 205118002U
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CN
China
Prior art keywords
bearing
permanent magnet
magnet generator
roller bearing
deep groove
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Active
Application number
CN201520820408.3U
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Chinese (zh)
Inventor
罗荣锋
张启应
郭涛
章政华
杨云
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MingYang Smart Energy Group Co Ltd
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Guangdong Mingyang Wind Power Group Co Ltd
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Priority to CN201520820408.3U priority Critical patent/CN205118002U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The utility model discloses a single -point support bearings structure for wind generating set permanent magnet generator, including bearing frame, hollow shaft, deep groove ball bearing and cylindrical roller bearing, deep groove ball bearing lies in permanent magnet generator's the outside, is close to the gear box orientation, mainly is used for keeping balance the overturning moment of permanent magnet generator's rotor, and as the usefulness of location bearing, cylindrical roller bearing position in permanent magnet generator's inboard is as the usefulness of mainly bearing the weight of the bearing simultaneously, the outer lane and the bearing frame of deep groove ball bearing and cylindrical roller bearing pass through the jump ring to be connected, and the bearing frame passes through bolted connection with permanent magnet generator's casing, and the inner circle of deep groove ball bearing and cylindrical roller bearing passes through the hot jacket and passes through bolted connection with empty spindle connection, hollow shaft with permanent magnet generator's rotor, forms to rotatable parts. Adopt the utility model discloses the extra bearing design of generator can be simplified to the structure, when guaranteeing the generator rotor reliability of operation, and the design and the maintenance of the bearing of being convenient for.

Description

A kind of single point supporting bearing structure of wind power generating set permanent magnet generator
Technical field
The utility model relates to the technical field of wind power generating set permanent magnet generator, refers in particular to a kind of single point supporting bearing structure of wind power generating set permanent magnet generator.
Background technique
Known in the industry, double-fed wind power generator general at present, what half-direct-drive wind driven generator all adopted is two point-supported bearing structures, and this structure causes the lubrication more complicated of dynamo bearing, the independent grease lubrication system usually adopted or manual application of lubricant; First this grease lubrication system itself is fault point, and grease lubrication is comparatively large by environment, wind regime, climatic influences, so the bearing fault of wind-driven generator is the fault occurred frequently of wind field always.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of single point supporting bearing structure of wind power generating set permanent magnet generator is provided, mainly make full use of the complete machine structure of SCD Wind turbines, dynamo bearing and gear-box is made to share a set of lubrication system, by adopting the design bearing of single point supporting, the bearing lubrication mode of oil spout, decreases the bearing fault of generator, decrease generator lubrication, generator more can the change of acclimatization environment.
For achieving the above object, technological scheme provided by the utility model is: a kind of single point supporting bearing structure of wind power generating set permanent magnet generator, includes bearing support, hollow shaft, deep groove ball bearing and roller bearing; Wherein, described deep groove ball bearing is positioned at the outside of permanent magnet generator, near the gear-box direction of wind power generating set, be mainly used to the tilting moment of the rotor balancing permanent magnet generator, simultaneously as the use of positioning bearing, described roller bearing is positioned at the inner side of permanent magnet generator, and is less than the distance of deep groove ball bearing to roller bearing to the distance of roller bearing due to the center of gravity of the rotor vertical direction of permanent magnet generator, therefore this roller bearing is as the use of main carrier bearing; Described deep groove ball bearing is connected by jump ring with bearing support with the outer ring of roller bearing, the casing of described bearing support and permanent magnet generator is bolted, described deep groove ball bearing is connected with hollow shaft by hot jacket with the inner ring of roller bearing, the rotor of described hollow shaft and permanent magnet generator is bolted, and is formed as rotatable parts.
The lubrication of described deep groove ball bearing and roller bearing is the lubricant oil that the oil filling pipeline by introducing outward from casing transports from gearbox hydraulic system, ensure bearing lubrication and cooling bearing, prevent bearing oil from entering permanent magnet generator inside by double labyrinth seal simultaneously; Wherein, the static and dynamic sealing of the first heavy labyrinth seal is positioned at the inner ring place of roller bearing and is provided with drain oil in sealing place, the position of this static and dynamic sealing ensure that the accumulator of permanent magnet generator machine bearing, and adds by sealing channel the flow resistance that lubricant oil enters permanent magnet generator second resealing place; Second heavily labyrinth seal be positioned at the outside of the first heavy labyrinth seal, near the direction, cabin of wind power generating set, the static and dynamic sealing of this second heavy labyrinth seal is positioned at the middle of roller bearing, and be provided with drain oil, and by the static and dynamic sealing opening direction of bearing away from bearing lubrication direction, ensure that the lubricant oil that sputtering produces is assembled at the drain oil place of the second heavy labyrinth seal and flows out, second heavily labyrinth seal ensure that even if the second resealing place creates too much lubricant oil in abnormal cases, also can not flow into permanent magnet generator inside.
The lubrication oil filtration of described gearbox hydraulic system adopts the filter screen filtration of 10um, to ensure the cleanliness of lubricating oil entering permanent magnet generator.
Compared with prior art, tool has the following advantages and beneficial effect the utility model:
1, adopt single point supporting structure, simplify the extra design bearing of generator, while ensureing generator amature reliability of operation, be convenient to design and the maintenance of bearing.
2, share a set of lubrication system with gear-box, by the oil filling pipeline introduced from casing, by lubricant oil injection bearing seat, simplify mechanism design and the Lubrication Design of complete machine outward, reduce the maintenance of complete machine.
3, by double labyrinth seal, often heavily labyrinth seal place is equipped with drain oil, and the oil return of double labyrinth seal ensures that lubricant oil must not inflow generator inside.
4, by the process of gear box lubricating oil, the bearing lubrication of generator more can conform, climatic influences.
Accompanying drawing explanation
Fig. 1 is the scheme of installation of single point supporting bearing structure described in the utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
As shown in Figure 1, the single point supporting bearing structure of the wind power generating set permanent magnet generator described in the present embodiment, includes bearing support 1, hollow shaft 2, deep groove ball bearing 3 and roller bearing 4; Wherein, described deep groove ball bearing 3 is positioned at the outside of permanent magnet generator, near the gear-box direction of wind power generating set, be mainly used to the tilting moment of the rotor 5 balancing permanent magnet generator, simultaneously as the use of positioning bearing, described roller bearing 4 is positioned at the inner side of permanent magnet generator, and be less than the distance of deep groove ball bearing 3 to roller bearing 4 to the distance of roller bearing 4 due to the center of gravity of the rotor vertical direction of permanent magnet generator, therefore this roller bearing 4 is as the use of main carrier bearing; The outer ring of described deep groove ball bearing 3 and roller bearing 4 is connected by jump ring with between bearing support 1, be bolted between described bearing support 1 and the casing 6 of permanent magnet generator, described deep groove ball bearing 3 is connected with hollow shaft 2 by hot jacket with the inner ring of roller bearing 4, be bolted between described hollow shaft 2 and the rotor 5 of permanent magnet generator, be formed as rotatable parts.
The lubrication of described deep groove ball bearing 3 and roller bearing 4 is the lubricant oil by transporting from the outer oil filling pipeline 7 introduced of casing 6 from gearbox hydraulic system, namely a set of lubrication system is shared with gear-box, ensure bearing lubrication and cooling bearing, prevent bearing oil from entering permanent magnet generator inside by double labyrinth seal simultaneously; Wherein, the static and dynamic sealing of the first heavy labyrinth seal 8 is positioned at the inner ring place of roller bearing 4 and is provided with drain oil in sealing place, the position of this static and dynamic sealing ensure that the accumulator of permanent magnet generator machine bearing, by the flow that calculating generator lubricant oil is per minute, ensure that the hydraulic surface of lubricant oil stable state is far below sealing place, ensure that lubricant oil can flow out smoothly, then add by the sealing channel of 100mm the flow resistance that lubricant oil enters permanent magnet generator second resealing place; Second heavily labyrinth seal 9 be positioned at the outside of the first heavy labyrinth seal 8, near the direction, cabin of wind power generating set, the static and dynamic sealing of this second heavy labyrinth seal 9 is positioned at the middle of roller bearing 4, and be provided with drain oil, and by the static and dynamic sealing opening direction of bearing away from bearing lubrication direction, ensure that the lubricant oil that sputtering produces is assembled at the drain oil place of the second heavy labyrinth seal 9 and flows out, second heavily labyrinth seal 9 ensure that even if the second resealing place creates too much lubricant oil in abnormal cases, also can not flow into permanent magnet generator inside.In addition, the heating system of gear box lubricating oil and filtration system (adopting the filter screen filtration of 10um), make lubricant oil possess enough turbidity test and viscosity, ensure that the normal work of dynamo bearing.
The examples of implementation of the above are only the preferred embodiment of the utility model, not limit practical range of the present utility model with this, therefore the change that all shapes according to the utility model, principle are done, all should be encompassed in protection domain of the present utility model.

Claims (3)

1. a single point supporting bearing structure for wind power generating set permanent magnet generator, is characterized in that: include bearing support, hollow shaft, deep groove ball bearing and roller bearing; Wherein, described deep groove ball bearing is positioned at the outside of permanent magnet generator, near the gear-box direction of wind power generating set, be mainly used to the tilting moment of the rotor balancing permanent magnet generator, simultaneously as the use of positioning bearing, described roller bearing is positioned at the inner side of permanent magnet generator, and is less than the distance of deep groove ball bearing to roller bearing to the distance of roller bearing due to the center of gravity of the rotor vertical direction of permanent magnet generator, therefore this roller bearing is as the use of main carrier bearing; Described deep groove ball bearing is connected by jump ring with bearing support with the outer ring of roller bearing, the casing of described bearing support and permanent magnet generator is bolted, described deep groove ball bearing is connected with hollow shaft by hot jacket with the inner ring of roller bearing, the rotor of described hollow shaft and permanent magnet generator is bolted, and is formed as rotatable parts.
2. the single point supporting bearing structure of a kind of wind power generating set permanent magnet generator according to claim 1, it is characterized in that: the lubrication of described deep groove ball bearing and roller bearing is the lubricant oil that the oil filling pipeline by introducing outward from casing transports from gearbox hydraulic system, ensure bearing lubrication and cooling bearing, prevent bearing oil from entering permanent magnet generator inside by double labyrinth seal simultaneously; Wherein, the static and dynamic sealing of the first heavy labyrinth seal is positioned at the inner ring place of roller bearing and is provided with drain oil in sealing place, the position of this static and dynamic sealing ensure that the accumulator of permanent magnet generator machine bearing, and adds by sealing channel the flow resistance that lubricant oil enters permanent magnet generator second resealing place; Second heavily labyrinth seal be positioned at the outside of the first heavy labyrinth seal, near the direction, cabin of wind power generating set, the static and dynamic sealing of this second heavy labyrinth seal is positioned at the middle of roller bearing, and be provided with drain oil, and by the static and dynamic sealing opening direction of bearing away from bearing lubrication direction, ensure that the lubricant oil that sputtering produces is assembled at the drain oil place of the second heavy labyrinth seal and flows out, second heavily labyrinth seal ensure that even if the second resealing place creates too much lubricant oil in abnormal cases, also can not flow into permanent magnet generator inside.
3. the single point supporting bearing structure of a kind of wind power generating set permanent magnet generator according to claim 1, it is characterized in that: the lubrication oil filtration of described gearbox hydraulic system adopts the filter screen filtration of 10um, to ensure the cleanliness of lubricating oil entering permanent magnet generator.
CN201520820408.3U 2015-10-21 2015-10-21 Single -point support bearings structure for wind generating set permanent magnet generator Active CN205118002U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520820408.3U CN205118002U (en) 2015-10-21 2015-10-21 Single -point support bearings structure for wind generating set permanent magnet generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520820408.3U CN205118002U (en) 2015-10-21 2015-10-21 Single -point support bearings structure for wind generating set permanent magnet generator

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CN205118002U true CN205118002U (en) 2016-03-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110307262A (en) * 2019-07-12 2019-10-08 周超 A kind of ceramic bearing
CN112049760A (en) * 2020-09-10 2020-12-08 中国船舶重工集团海装风电股份有限公司 Integrated structure of gear box and generator of wind generating set and method for assembling and disassembling on tower

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110307262A (en) * 2019-07-12 2019-10-08 周超 A kind of ceramic bearing
CN110307262B (en) * 2019-07-12 2020-10-16 安徽省华腾农业科技有限公司经开区分公司 Ceramic bearing
CN112049760A (en) * 2020-09-10 2020-12-08 中国船舶重工集团海装风电股份有限公司 Integrated structure of gear box and generator of wind generating set and method for assembling and disassembling on tower
CN112049760B (en) * 2020-09-10 2021-08-24 中国船舶重工集团海装风电股份有限公司 Integrated structure of gear box and generator of wind generating set and method for assembling and disassembling on tower

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CP01 Change in the name or title of a patent holder
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Address after: 528437 Guangdong torch hi tech Industrial Development Zone, Torch Road, No. 22, Ming Yang Industrial Park, Zhongshan

Patentee after: Ming Yang wisdom Energy Group AG

Address before: 528437 Guangdong torch hi tech Industrial Development Zone, Torch Road, No. 22, Ming Yang Industrial Park, Zhongshan

Patentee before: Guangdong Mingyang Wind Power Group Co., Ltd.