CN101865244B - Quasi-planetary speed reduction box of cooling water pump of nuclear power station - Google Patents
Quasi-planetary speed reduction box of cooling water pump of nuclear power station Download PDFInfo
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- CN101865244B CN101865244B CN2010101353642A CN201010135364A CN101865244B CN 101865244 B CN101865244 B CN 101865244B CN 2010101353642 A CN2010101353642 A CN 2010101353642A CN 201010135364 A CN201010135364 A CN 201010135364A CN 101865244 B CN101865244 B CN 101865244B
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- quasi
- planetary
- speed reduction
- nuclear power
- water pump
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- 239000000498 cooling water Substances 0.000 title claims abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 2
- 210000000515 tooth Anatomy 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention relates to the technical field of speed reduction of nuclear power stations, in particular to a quasi-planetary speed reduction box of a cooling water pump of the nuclear power station. The cooling water pump of the Daya Bay nuclear power station adopts a planetary gear reducer of Rolls-Royce Ltd., UK. The design service life is 100,000 hours. Tooth breaking exists in a planetary gear after the accumulated running time of a reduction gear box of a No.2 circulation water pump of a No.1 unit achieves 44000 hours. Therefore, the design of the speed reduction box of the water pump with the high reliability has very important economic valve for ensuring the normal running of the nuclear power station. The quasi-planetary speed reduction box is technically characterized by adopting a single-stage quasi-planetary structure which carries out split twice in a plane: (input) central gear-two second intermediate wheels-(output) inner gear ring. As a planetary carrier is fixed during the quasi-planetary transmission, the vibration is smaller than that during the planetary transmission. The power split number is 2 multiplied by 4. The quasi-planetary speed reduction box has the benefits of straight teeth and quality adjustment of the inner gear ring, small machining process difficulty, low cost, and large carrying capacity.
Description
[technical field]
The present invention relates to nuclear power station braking technique field, a kind of quasi-planetary speed reduction box of cooling water pump of nuclear power station.
[background technique]
4 recirculated cooling water pumps are equipped with in Daya Bay nuclear power plant, and what between motor and water pump, install is the planetary gear reducer that Britain ROLLS ROYCE LTD. produces.This plane table thermoconductivity meter comprises a sun gear, 4 planet wheels and two ring gears, the transmission of symmetric double helical teeth.The specified mechanical output of plane table thermoconductivity meter is 4498kW, maximum delivered moment 266353N.m, and 744r/min, specified output speed 161r/min, reduction speed ratio i=4.62, design service life 100,000 hours are changeed in specified input.On January 9th, 1998, Daya Gulf
Nuclear powerStand No. 1 unit under the state of power operation, No. 2 circulating water pump reduction gear box planetary pinion broken teeths take place suddenly cause the pump group to be shut down, power falls in generator set
Accident, cause heavy economic losses to the power station.France nuclear power plant uses and Daya Gulf
Nuclear powerThe similar planetray reducer of standing.Broken teeth takes place in this type gear in running
AccidentCumulative Elapsed Time be 63000 hours, and Daya Gulf
Nuclear powerThe station is 44000 hours.Therefore, designed for greater reliability water pump speed reducer guarantees that the normal operation of nuclear power station has economic value of the utmost importance.
[summary of the invention]
The object of the invention is to provide a kind of highly reliable, in light weight, quasi-planetary speed reduction box of cooling water pump of nuclear power station that the manufacturing process difficulty is lower than external type.
Technological scheme: because reduction speed ratio is less, thereby be employed in the single-stage quasi-planet structure of carrying out twice shunting in the plane: (input) central gear-two second idle wheel-(output) ring gear.Because planet carrier is fixed in the quasi-planet transmission, thereby its vibration is less than Gear Planet Transmission.Power dividing number of the present invention is 2 * 4.
Beneficial effect: ring gear straight-tooth, modified, the machining difficulty is little; Eight shunting gear diameters are little, thereby accuracy of manufacturing is prone to just protecting, difficulty is little; Speed reducer is in light weight, low cost of manufacture and bearing capacity are big.
Attach: the comparison of the present invention and existing type
| Type | Z a-Z c-(Z d)-Z b | Reduction speed ratio i | Modulus m | Divide fluxion np | Facewidth b |
| The present invention | (standard) 20-18-21-92 | 4.60 | 10.0 | 4×2 | 100 |
| Existing type | 23-29-81 | 4.52 | 14.0 | 4 | 100 |
(annotate: calculating is according to condition K
A=1.0, S
H=1.20, S
F=1.50)
[description of drawings] Fig. 1. embodiment of the invention structural representation
[embodiment]
Below in conjunction with accompanying drawing the present invention is encyclopaedized:
With reference to Fig. 1. a kind of quasi-planetary speed reduction box of cooling water pump of nuclear power station, by support 1, ring gear 2, there won't be any problem star-wheel 4, central shaft gear 5, quasi-planet frame 7, output shaft 10 and end cap 6 are formed, said quasi-planet frame 7 is fixed on support 1 end face, it is characterized in that:
3, two second idle wheel numbers of teeth of two second idle wheels, identical, the symmetrical mounting of modulus are arranged between said there won't be any problem star-wheel 4 and the ring gear 2, the branch fluxion are doubled, improved bearing capacity,
Said central shaft gear 5, there won't be any problem star-wheel 4, second idle wheel 3 and ring gear 2 all place on the same plane; Constitute single-stage driving, said ring gear 2 cylindrical external spliness and output shaft 10 cylinder endoporus internal splines are slidingly connected, and disassemble or assemble are convenient; Can forward and reversely assemble; Improved the working life of ring gear, the spline sideshake is beneficial to shunting and all carries
The block bearing 8,9 of said output shaft 10 places quasi-planet frame 7 and support 1 endoporus respectively, thereby axial length is short, has reduced the installing space of unit.
Described quasi-planetary speed reduction box of cooling water pump of nuclear power station is characterized in that: there won't be any problem star-wheel 4 is four, and second idle wheel 3 is eight, and the branch fluxion is doubled, and has improved bearing capacity.
The foregoing description is to explanation of the present invention, is not to qualification of the present invention, any scheme after the simple transformation of the present invention is all belonged to protection scope of the present invention
Claims (2)
1. quasi-planetary speed reduction box of cooling water pump of nuclear power station; By support (1), ring gear (2), there won't be any problem star-wheel (4), central shaft gear (5), quasi-planet frame (7), output shaft (10) and end cap (6) are formed; Said quasi-planet frame (7) is fixed on support (1) end face; It is characterized in that: between said there won't be any problem star-wheel (4) and the ring gear (2) two second idle wheels (3) are arranged; Two second idle wheel numbers of teeth, identical, the symmetrical mounting of modulus, said central shaft gear (5), there won't be any problem star-wheel (4), second idle wheel (3) and ring gear (2) all place on the same plane, constitute single-stage driving; Said ring gear (2) cylindrical external splines and output shaft (10) cylinder endoporus internal spline are slidingly connected, and the block bearing of said output shaft (10) (8,9) places quasi-planet frame (7) and support (1) endoporus respectively.
2. quasi-planetary speed reduction box of cooling water pump of nuclear power station according to claim 1 is characterized in that: there won't be any problem star-wheel (4) is four, and second idle wheel (3) is eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101353642A CN101865244B (en) | 2010-03-01 | 2010-03-01 | Quasi-planetary speed reduction box of cooling water pump of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101353642A CN101865244B (en) | 2010-03-01 | 2010-03-01 | Quasi-planetary speed reduction box of cooling water pump of nuclear power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101865244A CN101865244A (en) | 2010-10-20 |
| CN101865244B true CN101865244B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101353642A Expired - Fee Related CN101865244B (en) | 2010-03-01 | 2010-03-01 | Quasi-planetary speed reduction box of cooling water pump of nuclear power station |
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| CN (1) | CN101865244B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996718A (en) * | 2012-09-11 | 2013-03-27 | 吴小杰 | Bearing grease lubricated NGW quasi planetary transmission device |
| CN103089927B (en) * | 2012-11-03 | 2016-04-13 | 吴小杰 | Bearing grease lubrication nuclear power station coolant pump quasi-planetary speed reduction box |
| CN104074926B (en) * | 2014-07-01 | 2016-05-04 | 北京航空航天大学 | Novel GTF aerial engine fan main reducing gear |
| CN104309473A (en) * | 2014-10-08 | 2015-01-28 | 上海中科深江电动车辆有限公司 | Planet speed reducer assembly for electric vehicle and electric vehicle |
| CN105387189A (en) * | 2015-10-26 | 2016-03-09 | 陈伟 | Oil temperature alarming cycloid bidirectional output pile machine reduction box |
| CN105156653A (en) * | 2015-10-26 | 2015-12-16 | 陈伟 | Differential planet two-way output pile driver speed reducer with oil temperature alarm function |
| CN106382340B (en) * | 2016-10-21 | 2018-11-09 | 张玉国 | A kind of high-speed high-power coaxial speed reducer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2604571Y (en) * | 2002-04-18 | 2004-02-25 | 尹万春 | External engagement epicyclic train motion mechanism |
| CN101539187A (en) * | 2008-05-15 | 2009-09-23 | 吴小杰 | Megawatt ten-shunt wind power generation speed increasing box |
| CN101581351A (en) * | 2009-06-23 | 2009-11-18 | 吴声震 | Novel planetary reduction gear |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002103222A1 (en) * | 2001-06-13 | 2002-12-27 | Kazuyoshi Fukuchi | Rotation transmitting device and hydraulic drive device |
-
2010
- 2010-03-01 CN CN2010101353642A patent/CN101865244B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2604571Y (en) * | 2002-04-18 | 2004-02-25 | 尹万春 | External engagement epicyclic train motion mechanism |
| CN101539187A (en) * | 2008-05-15 | 2009-09-23 | 吴小杰 | Megawatt ten-shunt wind power generation speed increasing box |
| CN101581351A (en) * | 2009-06-23 | 2009-11-18 | 吴声震 | Novel planetary reduction gear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101865244A (en) | 2010-10-20 |
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| C14 | Grant of patent or utility model | ||
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| CP02 | Change in the address of a patent holder |
Address after: 225401 Taixing, Sichuan Province, North Sichuan Road, No. 88, No. Patentee after: Wu Shengzhen Address before: 325400 Zhejiang province Pingyang Kunyang town Whitehead Street No. four building 761 room Patentee before: Wu Shengzhen |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Zhiyi Inventor before: Wu Shengzhen |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170414 Address after: Northern Nantou Langfang city village 065700 household in Hebei Province, Bazhou City Development Zone on the west side of Jingkailu Patentee after: Hebei Tang mud pump technology Co.,Ltd. Address before: Tianhe District Tong East Road Guangzhou city Guangdong province 510665 B-101 No. 5, room B-118 Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170414 Address after: Tianhe District Tong East Road Guangzhou city Guangdong province 510665 B-101 No. 5, room B-118 Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 225401 Taixing, Sichuan Province, North Sichuan Road, No. 88, No. Patentee before: Wu Shengzhen |
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Granted publication date: 20120905 Termination date: 20180301 |
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| CF01 | Termination of patent right due to non-payment of annual fee |