CN201560901U - Wind power generation speed-increasing gear box - Google Patents
Wind power generation speed-increasing gear box Download PDFInfo
- Publication number
- CN201560901U CN201560901U CN2009202565913U CN200920256591U CN201560901U CN 201560901 U CN201560901 U CN 201560901U CN 2009202565913 U CN2009202565913 U CN 2009202565913U CN 200920256591 U CN200920256591 U CN 200920256591U CN 201560901 U CN201560901 U CN 201560901U
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- Prior art keywords
- bearing
- power generation
- wind power
- contact ball
- generation speed
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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
Abstract
The utility model provides a wind power generation speed-increasing gear box comprising a gear box body and a power output shaft with one end stretching out of the gear box body, wherein the power output shaft comprises a gear section for transmitting the power; the gear box body is internally fixed with a bearing seat; the power output shaft is sheathed with at least two cylindrical roller bearings and a four-point contact ball bearing, wherein the outer rings of the cylindrical roller bearings are tightly stuck with the bearing seat; and the outer ring of the four-point contact ball bearing is matched with the bearing seat in a gap manner. The main benefits are embodied in the following aspects of: reasonably meeting the use working condition of a high-speed output shaft, having high rotating speed, low load, big axial force and long service life; reasonably meeting the lubrication requirement of an output shaft bearing under the dynamic and static condition; and having easy disassembly and assembly as well as convenient maintenance.
Description
Technical field
The utility model relates to a kind of gear-box, especially a kind of used for wind power generation step-up gear.
Background technique
Along with non-renewable energy resources face exhausted awkward situation at world wide, for satisfying industrialized production and the human lives is required, people are to the concern of solar energy, wind-force, these renewable energy sourcess of waterpower and utilize day by day and promote.Wherein, wind-power electricity generation is a kind of relatively ripe, higher energy development technology of conversion efficiency that developed, especially on the plateau, there is popularization and application widely in area such as coastal.
In wind-driven generator, gear-box is its critical component, and the wind-driven generator step-up gear of China's use at present mainly solves by import.The speed-increasing gearbox of wind driven generator speed ratio is big, so high speed output shaft rotating speed height, and the relative slow speed turbine stage of load is smaller; And be the contact ratio that increases gear, the helix angle of level is generally bigger at a high speed, has brought bigger axial force; And gear-box requires projected life long, and therefore reasonably bearing type selecting and layout seem particularly important.Be to be used in combination the output shaft that double-row conical bearing and roller bearing support step-up gear in the mode of generally using at present, the roller bearing of this method is easy to generate skidding under the not enough situation of carrying.In addition, lubricated and sealing also has certain influence for it for present bearing setting.
The model utility content
The purpose of this utility model is to solve above-mentioned technical problem, and a kind of wind power generation speed increasing gear-box that can rationally satisfy the applying working condition of its high speed output shaft is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of wind power generation speed increasing gear-box, comprise gear housing, one end stretches out in the pto of described gear housing, described pto comprises a gear segment that is used to transmit power, described gear housing is provided with bearing support, be set with first on the described pto, second roller bearing and a four-point contact ball, described first, corresponding axis bearing inwall is close in the outer ring of second roller bearing, the outer ring of described four-point contact ball and corresponding axis bearing inwall Spielpassung, described four-point contact ball is positioned at the outside of first roller bearing of pto external part.
Further, described roller bearing selects for use 2 to be roller bearing, and four-point contact ball selects for use 3 to be four-point contact ball.
Further, be provided with an end ring between described first roller bearing and the four-point contact ball, described end ring and bearing support are fastenedly connected, and cooperate the outer ring that compresses described first roller bearing with the step of bearing support.
Further, the outer ring of described end ring is fixed with at least one rotation inhibiting block, described rotation inhibiting block projection stretch in the groove of outer ring of described 4 angular contact ball bearings.
Further, the outside of described bearing support is fastening to be provided with a bearing cover, and described bearing cover cooperates with end ring has all executed a clamping force to the outer ring of described 4 angular contact ball bearings.
Further, a round nut has been threaded on the described pto, described round nut is sheathed on the inner ring that disc on the described pto is pressed in described 4 angular contact ball bearings with one, is equipped with sealed groove on described disc and the bearing cover.
Further, the fastening oil sealing that is provided with a cover plate and is provided with drainback passage in the outside of described bearing cover is equipped with O type circle on described bearing cover and the bearing support.
Further, be provided with a pressure lubrication oil duct in the described wind power generation speed increasing gear-box, described pressure lubrication oil duct comprise mutual UNICOM, be arranged at the oilhole on described casing, bearing support, the bearing baffle, and be arranged on the described bearing baffle, with the jet of the bearing race UNICOM of described roller bearing and four-point contact ball.
Further, described second roller bearing be provided be exclusively used in jet lubrication oil and nozzle specially used in alignment with the bearing race of described second roller bearing.
Further, the both sides of described roller bearing are provided with and are used to make the oil baffle that forms oil storage pool in the described wind power generation speed increasing gear-box.
The beneficial effects of the utility model are mainly reflected in:
1) is used in combination 2 serial roller bearings and 4 angular contact ball bearings of 3 series, rationally satisfies the applying working condition of high speed output shaft: high rotating speed, low load, larger axial force, long lifetime;
2) design lubricating oil path on end ring, lubricant oil is directly sprayed into bearing race, the effectively lubricating bearing also can in time be discharged heat;
3) use pressure lubrication and be the design bearing oil storage pool, rationally solve the lubricating requirement of output shaft bearing under dynamic and static;
4) be used in combination contact and the effective static and dynamic sealing that solves high speed shaft of non-contact sealing;
5) make the high speed output shaft be easy to dismounting, be convenient to safeguard.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: the structural representation of the utility model wind power generation speed increasing gear-box;
Fig. 2: the structural representation of the utility model left side oil storage pool;
Fig. 3: the fastening schematic representation of this novel practical end ring;
Fig. 4: the utility model pressure lubrication oil duct schematic representation.
Embodiment
The utility model has disclosed a kind of wind power generation speed increasing gear-box, preferred embodiment as shown in Figure 1, comprise the pto 1 that a gear housing 7 and are located in the described gear housing 7, an end stretches out in described gear housing 7, gear housing 7 shown in this pto 1 is used for power transmission gone out.Described pto 7 comprises a gear segment 4, and other gear of this gear segment 4 and gear housing 7 connects, and is used to transmit power.Described gear housing 7 internal fixation are provided with a bearing support 6.，
Wind power generation speed increasing gear-box speed ratio is big, so pto 7 rotating speed height, and the relative slow speed turbine stage of load is smaller; And in order to increase the contact ratio of gear, the helix angle of level is generally bigger at a high speed, has brought bigger axial force; And gear-box requires projected life long, and therefore reasonably bearing type selecting and layout seem particularly important.
In the utility model, be arranged with 3,5 and four-point contact balls 11 of at least two roller bearings on described pto 7, two roller bearings 3,5 lay respectively at the both sides of the gear segment 4 of described pto 7 in the present embodiment.Described roller bearing selects for use 2 to be roller bearing, and four-point contact ball selects for use 3 to be four-point contact ball.
Present embodiment uses 2 to be that roller bearing and 3 is a four-point contact ball, not only can avoid 3 to be the skidding that roller bearing produces when carrying is not enough, and 3 is that 4 angular contact ball bearings can have enough projected lives under the existing axial force of carrying.
The outer ring of described roller bearing 3,5 is close on the described bearing support, the outer ring of described 4 angular contact ball bearings 11 and bearing support 6 be Spielpassung diametrically, make whole radial forces all bear by two roller bearings 3,5, and 4 angular contact ball bearings 11 only bear axial force, and so combination can be given full play to the carrying advantage of each bearing.Use bearing support 6 that roller bearing 3,5 and 4 angular contact ball bearings 11 and lubrication and seal spare (being detailed later) are combined simultaneously, avoided the influence of mould assembling dislocation to bearing, be convenient to the dismounting of high speed output shaft 7, and the axial dimension change that fixing like this-unsteady support pattern can effectively avoid the temperature difference to bring avoids occurring stuck phenomenon.
Further, be provided with an end ring 8 between described first roller bearing 5 and the four-point contact ball 11, as shown in Figure 3, described end ring 8 is fastenedly connected by a plurality of clamping bolts 18 with bearing support 6, and cooperate the outer ring that compresses described first roller bearing 5 with the step 19 of bearing support 6, play the effect that the prevention spin is skidded.Have two square grooves of symmetry on the described end ring 8, in groove, use screw 10 that two rotation inhibiting blocks 9 are fixed on the end ring 8, the projection of two rotation inhibiting blocks 9 stretches in the groove of described 4 angular contact ball bearing 11 outer rings just, so also can effectively prevent the rotation of outer ring, avoid spin to skid.
The outside of described bearing support 6 is provided with a bearing cover 13 by bolton, and described bearing cover 13 cooperates all with end ring 8 has executed a clamping force to the outer ring of described 4 angular contact ball bearings 11.A round nut 14 has been threaded on the described pto 1, described round nut 14 is sheathed on the inner ring that disc 12 on the described pto 1 is pressed in described 4 angular contact ball bearings 11 with one, be equipped with sealed groove on described disc 12 and the bearing cover 13, form labyrinth seal, can stop the leakage of most of lubricant oil.Simultaneously cover plate 15 and oil sealing 16 are housed, and design there is corresponding drainback passage, O shape circle all is installed on bearing cover 13 and bearing support 6 simultaneously, so just guarantee that high speed shaft dynamically and under the static state can not produce oil leakage phenomenon in output shaft 1 outer end.
Be provided with a pressure lubrication oil duct in the wind power generation speed increasing gear-box of the present utility model, as shown in Figure 4, described pressure lubrication oil duct comprise mutual UNICOM, be arranged at the oilhole on described casing 7, bearing support 6, the bearing baffle 8, and be arranged on the described bearing baffle 8, with the jet of the bearing race UNICOM of described roller bearing and four-point contact ball.Pressure lubrication oil enters oilhole a on the bearing support 6 through casing oilhole e, and reaches jet c and d via the oilhole b on the bearing baffle 8, makes lubricant oil can directly spray into bearing race, and the sufficient lubrication bearing is also in time taken away the heat of bearing.It is nozzle specially used 21 that another roller bearing 3 is equipped with, in alignment with the bearing race of this roller bearing 3, fully lubricated to guarantee.
In conjunction with illustrated in figures 1 and 2, the both sides of described roller bearing 3,5 are provided with oil baffle 2,17, gear housing 7 is certain inclination angle installation simultaneously, can in assemblying body, form independently oil storage pool 20, can guarantee that like this high speed output shaft 1 each bearing still has the lubricant oil supply when the lubrication system cisco unity malfunction.
The utility model is used in combination 2 serial roller bearings and 4 angular contact ball bearings of 3 series, rationally satisfies the applying working condition of high speed output shaft: high rotating speed, low load, larger axial force, long lifetime; Use multifunction bearing back-up ring 8, realize that simultaneously the outer ring of bearing 5 and 11 is fixed, and the pressure lubrication oil circuit can be integrated on this back-up ring 8, lubricant oil is directly sprayed into bearing race, the effectively lubricating bearing also can in time be discharged heat; Be used in combination contact and non-contact sealing, the dynamic and static sealing that effectively solves the high speed output shaft.
The utility model also has multiple implementation.All employings are equal to replacement or equivalent transformation and all technological schemes of forming, all drop within the claimed scope of the utility model.
Claims (10)
1. wind power generation speed increasing gear-box, comprise gear housing, one end stretches out in the pto of described gear housing, described pto comprises a gear segment that is used to transmit power, it is characterized in that: described gear housing is provided with bearing support, be set with first on the described pto, second roller bearing and a four-point contact ball, described first, corresponding axis bearing inwall is close in the outer ring of second roller bearing, the outer ring of described four-point contact ball and corresponding axis bearing inwall Spielpassung, described four-point contact ball is positioned at the outside of first roller bearing of pto external part.
2. wind power generation speed increasing gear-box according to claim 1 is characterized in that: described roller bearing selects for use 2 to be roller bearing, and four-point contact ball selects for use 3 to be four-point contact ball.
3. wind power generation speed increasing gear-box according to claim 2, it is characterized in that: be provided with an end ring between described first roller bearing and the four-point contact ball, described end ring and bearing support are fastenedly connected, and cooperate the outer ring that compresses described first roller bearing with the step of bearing support.
4. wind power generation speed increasing gear-box according to claim 3, it is characterized in that: the outer ring of described end ring is fixed with at least one rotation inhibiting block, described rotation inhibiting block projection stretch in the groove of outer ring of described 4 angular contact ball bearings.
5. wind power generation speed increasing gear-box according to claim 4, it is characterized in that: the outside of described bearing support is fastening to be provided with a bearing cover, and described bearing cover cooperates with end ring has all executed a clamping force to the outer ring of described 4 angular contact ball bearings.
6. wind power generation speed increasing gear-box according to claim 5, it is characterized in that: a round nut has been threaded on the described pto, described round nut is sheathed on the inner ring that disc on the described pto is pressed in described 4 angular contact ball bearings with one, is equipped with sealed groove on described disc and the bearing cover.
7. wind power generation speed increasing gear-box according to claim 6 is characterized in that: the fastening oil sealing that is provided with a cover plate and is provided with drainback passage in the outside of described bearing cover is equipped with O type circle on described bearing cover and the bearing support.
8. wind power generation speed increasing gear-box according to claim 7, it is characterized in that: be provided with a pressure lubrication oil duct in the described wind power generation speed increasing gear-box, described pressure lubrication oil duct comprise mutual UNICOM, be arranged at the oilhole on described casing, bearing support, the bearing baffle, and be arranged on the described bearing baffle, with the jet of the bearing race UNICOM of described roller bearing and four-point contact ball.
9. wind power generation speed increasing gear-box according to claim 8 is characterized in that: described second roller bearing be provided be exclusively used in jet lubrication oil and nozzle specially used in alignment with the bearing race of described second roller bearing.
10. it is characterized in that according to Claim 8 or 9 described any one wind power generation speed increasing gear-boxes: the both sides of described roller bearing are provided with and are used to make the oil baffle that forms oil storage pool in the described wind power generation speed increasing gear-box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202565913U CN201560901U (en) | 2009-11-12 | 2009-11-12 | Wind power generation speed-increasing gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202565913U CN201560901U (en) | 2009-11-12 | 2009-11-12 | Wind power generation speed-increasing gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201560901U true CN201560901U (en) | 2010-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202565913U Expired - Fee Related CN201560901U (en) | 2009-11-12 | 2009-11-12 | Wind power generation speed-increasing gear box |
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| CN (1) | CN201560901U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851166A (en) * | 2014-03-11 | 2014-06-11 | 江苏赫夫特齿轮制造有限公司 | Horizontal-vertical universal bearing mounting seat applied to reduction gearbox body |
| CN106461057A (en) * | 2014-06-27 | 2017-02-22 | 东洋电机制造株式会社 | Method for disassembling gear device |
| CN106640559A (en) * | 2017-01-10 | 2017-05-10 | 河南科技大学 | Method and device for setting asymmetric angles of asymmetric double-row and four-point contact ball bearings |
| CN109488538A (en) * | 2018-12-18 | 2019-03-19 | 杭州前进齿轮箱集团股份有限公司 | A kind of oily trapped fuel composite structure of wind power gear case high speed axis gear |
| CN109764120A (en) * | 2019-01-25 | 2019-05-17 | 天津华建天恒传动有限责任公司 | A kind of wind turbine gearbox output shaft housing bearing position sky restorative procedure |
| CN110285208A (en) * | 2019-07-25 | 2019-09-27 | 南京高精齿轮集团有限公司 | A kind of reduction gearbox and screw expander |
-
2009
- 2009-11-12 CN CN2009202565913U patent/CN201560901U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851166A (en) * | 2014-03-11 | 2014-06-11 | 江苏赫夫特齿轮制造有限公司 | Horizontal-vertical universal bearing mounting seat applied to reduction gearbox body |
| CN106461057A (en) * | 2014-06-27 | 2017-02-22 | 东洋电机制造株式会社 | Method for disassembling gear device |
| CN106640559A (en) * | 2017-01-10 | 2017-05-10 | 河南科技大学 | Method and device for setting asymmetric angles of asymmetric double-row and four-point contact ball bearings |
| CN106640559B (en) * | 2017-01-10 | 2019-01-08 | 河南科技大学 | The setting method and device of asymmetric double four-point contact ball asymmetry angle |
| CN109488538A (en) * | 2018-12-18 | 2019-03-19 | 杭州前进齿轮箱集团股份有限公司 | A kind of oily trapped fuel composite structure of wind power gear case high speed axis gear |
| CN109764120A (en) * | 2019-01-25 | 2019-05-17 | 天津华建天恒传动有限责任公司 | A kind of wind turbine gearbox output shaft housing bearing position sky restorative procedure |
| CN110285208A (en) * | 2019-07-25 | 2019-09-27 | 南京高精齿轮集团有限公司 | A kind of reduction gearbox and screw expander |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Patentee after: CRRC QISHUYAN INSTITUTE CO., LTD. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 1, No. Patentee before: Nanche Qisuyan Engine and Vehicle Technics Institute Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20181112 |