CN101846156B - Vertical and high-speed quasi-planetary reduction gearbox for nuclear generation - Google Patents

Vertical and high-speed quasi-planetary reduction gearbox for nuclear generation Download PDF

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Publication number
CN101846156B
CN101846156B CN2010101354325A CN201010135432A CN101846156B CN 101846156 B CN101846156 B CN 101846156B CN 2010101354325 A CN2010101354325 A CN 2010101354325A CN 201010135432 A CN201010135432 A CN 201010135432A CN 101846156 B CN101846156 B CN 101846156B
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China
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quasi
vertical
spline
reduction gearbox
casing
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CN2010101354325A
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Chinese (zh)
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CN101846156A (en
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吴声震
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吴声震
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Publication of CN101846156B publication Critical patent/CN101846156B/en

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Abstract

The invention relates to the technical field of high-temperature gas cooled reactor helium turbo-generation systems, which is the improvement of the patent of the invention 'vertical and high-speed gear reduction gearbox of Institute of Nuclear Energy, Tsinghua University. The invention discloses a vertical and high-speed quasi-planetary reduction gearbox or nuclear generation, which is characterized in that: (1) the quasi-planetary gear is applied for transmission; (2) the high intensity grey cast iron or nodular cast iron chassis and shell are arranged; the outer edge and the inner chamber are cast with vibration absorbing ribs, so that the intensity can be improved and the vibration can be reduced; (3) the outer ring spline of the inner gear ring on the thin wall is matched with the inner spline in the shell in a sliding manner, and the side gap of the spline is beneficial to uniformly load in a floating way; and (4) the planetary gear shaft is a hollow shaft with a downward opening, and is provided with an oil outlet micro pore in the radial direction. The invention has the advantages of good reliability, good vibration resistance and stable transmission.

Description

Vertical and high-speed quasi-planetary reduction gearbox for nuclear generation
[technical field] the present invention relates to high-temperature gas-cooled reactor helium gas turbine power generation system slowdown box technology field, be the improvement of nuclear energy technology research institute of Tsing-Hua University patent of invention " vertical type high speed gear reducer " (200510011655), a kind of vertical and high-speed quasi-planetary reduction gearbox for nuclear generation.
In [background technique] high-temperature gas-cooled reactor helium gas turbine power generation system, the turbine power generation unit is made up of helium gas turbine gas compressor, speed reducer and synchronous machine.Wherein the vertical and high-speed speed reducer is one of core apparatus of energy conversion unit, is to realize the key equipment of nuclear energy to electric energy.Can the reliability of vertical and high-speed speed reducer be related to high-temperature gas-cooled reactor helium gas turbine power generation system and normally move.Nuclear energy technology research institute of Tsing-Hua University is by the investigation in patent retrieval and market, do not find that there is the vertical and high-speed speed reducer home and abroad, in the application for a patent for invention that proposes " vertical type high speed gear reducer " 2005.4.29 day, 2007.12.19 day is invested patent for invention.
The subject matter of this invention is: so during high speed, should select quasi-planet transmission rather than Gear Planet Transmission for use:
(a) Cheng Daxian " mechanical design handbook " volume 3.14-426 page or leaf: " generally speaking, when the ring gear diameter d BDuring≤500mm, the planet carrier rotation speed n XMust not be greater than 3000r/min; When ring gear diameter d B>500mm, the planet carrier rotation speed n XMust not be greater than 1500r/min.If planet carrier rotation speed n XSurpass the afore mentioned rules value and then adopt planet carrier is fixed, by the quasi-planet transmission of ring gear output.”
(b) " generally (what have is v>40m/s to Zhu Xiaolu, and n 〉=3600r/min) is called the high gear transmission pitch circle linear velocity v>40m/s for 904 pages of Gear Transmission Design handbook;
(c) establishing nuclear power generation power is 10MW, and Gear Planet Transmission is 23-34-91, i=4.96, m=6.0, input n 1=15000r/min, output n 2=3000r/min, T 2=31835Nm, design conditions: F A=1.50, S H=1.20, S F=1.50, t=10 5, calculate order for simplifying: straight-tooth, K F β=K H β=1.0, K F α=K H α=1.0.The linear velocity of the linear velocity v=108m/s of result of calculation: facewidth b=115mm, sun gear Za, planet carrier cylindrical is up to 70m/s.Conclusion is: the speed reducer reliability by this invention structure fabrication can be too not high.
[summary of the invention] the object of the invention is to provide a kind of transmission performance to be better than former invention.
Technological scheme: (1) adopts the quasi-planet transmission; (2) high-strength gray cast iron or spheroidal graphite cast iron casing, casing outer rim and inner chamber cast out stiffening rib, have not only improved intensity but also can vibration damping, directly cast out shoe cream room in the casing.Pig casting machine casing tech, shock-absorbing performance are good; (3) the cylindrical spline of thin-wall annular gear and casing internal spline cunning are joined, and the spline sideshake is beneficial to floating load balancing; (4) planet wheel shaft is the hollow shaft that Open Side Down, and fuel-displaced aperture is radially arranged.
Beneficial effect: good reliability, good, the stable drive of resistance to shock.
[description of drawings] Fig. 1, embodiment of the invention structural representation
[embodiment] encyclopaedizes the present invention below in conjunction with accompanying drawing:
With reference to Fig. 1. a kind of vertical and high-speed quasi-planetary reduction gearbox for nuclear generation, by support (1), casing (6), sliding bearing (8), (14), place thrust-bearing (11), output shaft (9), input shaft (13), vent hood (10), oil shield (15) and oil sump (16) between output shaft and the quasi-planet frame to form, it is characterized in that:
Device is by sun gear (12), the quasi-planet driving component formed of star-wheel (5), quasi-planet frame (7), planet wheel shaft (3) and ring gear (4) there won't be any problem in the casing (6), wherein: casing connects one with quasi-planet frame, rubber ring (2) and support successively, and rubber ring (2) is used for absorbing, vibration damping; Planet wheel shaft is the blind hole axle that Open Side Down, on the axle radially fuel-displaced aperture is arranged, and makes pressure lubrication oil spray bar face toward aperture to the sliding bearing oil spout; Sun gear (12) shaft extension end spline and input shaft (13) internal spline are slidingly matched, and make sun gear be in unsteady and be beneficial to shunt all carrying of gear;
Ring gear (4) cylindrical spline and output shaft (9) cylinder internal spline are slidingly matched, and the sideshake of spline is beneficial to all carrying of shunting gear; Ring gear can forward and reversely assemble, and has improved the working life of ring gear;
Support (1) and casing (6) be ash mouth or ductile cast iron casting, and the foundry goods resistance to shock is good, process for machining is good, and its outer rim and inner chamber are cast with the vibration damping muscle, not only absorbing but also can improve the mechanical strength of body.
The foregoing description is to explanation of the present invention, is not limitation of the invention, any scheme after the simple transformation of the present invention is all belonged to protection scope of the present invention

Claims (3)

1. vertical and high-speed quasi-planetary reduction gearbox for nuclear generation, comprise support (1), casing (6), sliding bearing (8,14), place thrust-bearing (11), output shaft (9), input shaft (13), vent hood (10), oil shield (15) and oil sump (16) between output shaft (9) and the quasi-planet frame (7), it is characterized in that:
(a) in the casing (6) assembling by sun gear (12), the quasi-planet driving component formed of star-wheel (5), quasi-planet frame (7), planet wheel shaft (3) and ring gear (4) there won't be any problem, wherein: casing successively with quasi-planet frame, rubber ring (2) and support connection one; Planet wheel shaft is the blind hole axle that Open Side Down, on the axle radially fuel-displaced aperture is arranged; Sun gear (12) shaft extension end spline and input shaft (13) internal spline are slidingly matched;
(b) ring gear (4) cylindrical spline and output shaft (9) cylinder internal spline are slidingly matched, and ring gear can forward and reversely assemble.
2. vertical and high-speed quasi-planetary reduction gearbox for nuclear generation according to claim 1 is characterized in that: support (1) is ash mouth or spheroidal graphite cast iron material with casing (6).
3. vertical and high-speed quasi-planetary reduction gearbox for nuclear generation according to claim 2 is characterized in that: support (1) is cast with the vibration damping muscle with the outer rim and the inner chamber of casing (6).
CN2010101354325A 2010-03-01 2010-03-01 Vertical and high-speed quasi-planetary reduction gearbox for nuclear generation CN101846156B (en)

Priority Applications (1)

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CN2010101354325A CN101846156B (en) 2010-03-01 2010-03-01 Vertical and high-speed quasi-planetary reduction gearbox for nuclear generation

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CN2010101354325A CN101846156B (en) 2010-03-01 2010-03-01 Vertical and high-speed quasi-planetary reduction gearbox for nuclear generation

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CN101846156B true CN101846156B (en) 2011-12-07

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102192278B (en) * 2011-04-02 2015-11-25 陈伟 Vertical dynamic balance needle-guard-free cycloid speed reducer
CN102192276A (en) * 2011-04-02 2011-09-21 吴小杰 Novel vertical type needle-sleeve-free cycloid reducer
CN102287491B (en) * 2011-08-03 2013-11-27 重庆齿轮箱有限责任公司 Vertical type planet gearbox transmission device
CN104214278B (en) * 2014-08-28 2016-08-24 郑州机械研究所 The lubricated type primary speed-down structure of a kind of vertical type speed reducer (change gear) and a kind of vertical type speed reducer (change gear)
CN106678282B (en) * 2016-12-16 2019-11-19 长兴柔昊精密科技有限公司 Robot joint speed reducer
CN107104549B (en) * 2017-06-26 2020-01-07 江苏欧邦电机制造有限公司 Compact structure's planet gear motor with shock-absorbing function
CN108412970B (en) * 2018-05-25 2018-09-25 上海奥托克动力系统有限公司 vertical gearbox

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005050066A1 (en) * 2003-10-21 2005-06-02 Zf Friedrichshafen Ag Planetary gear
CN1687616A (en) * 2005-04-29 2005-10-26 清华大学 Vertical type high speed gear reducer
CN101539115A (en) * 2008-08-08 2009-09-23 吴小杰 Megawatt multi-split wind power speed-increasing gearbox
CN101581284A (en) * 2009-06-23 2009-11-18 吴小杰 Megawatt sliding bearing wind power speed increasing box

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005050066A1 (en) * 2003-10-21 2005-06-02 Zf Friedrichshafen Ag Planetary gear
CN1687616A (en) * 2005-04-29 2005-10-26 清华大学 Vertical type high speed gear reducer
CN101539115A (en) * 2008-08-08 2009-09-23 吴小杰 Megawatt multi-split wind power speed-increasing gearbox
CN101581284A (en) * 2009-06-23 2009-11-18 吴小杰 Megawatt sliding bearing wind power speed increasing box

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