CN104482140A - Planetary gearbox assembly - Google Patents

Planetary gearbox assembly Download PDF

Info

Publication number
CN104482140A
CN104482140A CN201410823466.1A CN201410823466A CN104482140A CN 104482140 A CN104482140 A CN 104482140A CN 201410823466 A CN201410823466 A CN 201410823466A CN 104482140 A CN104482140 A CN 104482140A
Authority
CN
China
Prior art keywords
planetary
stage
planetary gear
gear train
planet carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410823466.1A
Other languages
Chinese (zh)
Inventor
何爱民
李苏东
邱模强
陈武
管益旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing High Speed Gear Manufacturing Co Ltd
Original Assignee
Nanjing High Speed Gear Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing High Speed Gear Manufacturing Co Ltd filed Critical Nanjing High Speed Gear Manufacturing Co Ltd
Priority to CN201410823466.1A priority Critical patent/CN104482140A/en
Publication of CN104482140A publication Critical patent/CN104482140A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/62Gearings having three or more central gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/08General details of gearing of gearings with members having orbital motion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2200/00Transmissions for multiple ratios
    • F16H2200/20Transmissions using gears with orbital motion

Abstract

The invention relates to a structure assembly of a planetary gearbox. The structure assembly of the planetary gearbox comprises a box body, planetary gear trains, an output shaft and a sealing device, and is characterized in that the box body comprises a front box body, a front-stage inner gear ring, a rear-stage inner gear ring and a rear box body which are sequentially and fixedly connected by bolts; the front-stage inner gear ring is a shared inner gear ring of a high-speed-stage planetary gear train, the rear-stage inner gear ring is a shared inner gear ring of a low-speed-stage planetary gear train, and the multiple stages of planetary gear trains are connected in series in a coaxial way; a sun gear shaft of the first stage of planetary gear train is taken as an input shaft, a planet carrier of the former stage of the planetary gear train is directly meshed with a sun gear of the later stage of planetary gear train by a tooth-type spline; all the stages of sun gears are sequentially arranged in a coaxial way and located in a floating way; all the stages of planetary gear trains respectively adopt a one-armed planetary frame structure; a low-speed-stage planet carrier and a planet gear pin shaft are synchronously forged into an integral structure; the output end of an output planet carrier is provided with an external spline, and the input end of the output shaft is provided with an internal spline matched with the external spline; the external spline is connected with the internal spline.

Description

Planetary pinion box assembly
Technical field
The present invention relates to a kind of planetary pinion box assembly.
Background technique
Epicyclic gearbox has compact structure, bearing capacity is high, and efficiency high, is widely used in every field.In some industrial application, especially wind-powered electricity generation industry, because operating mode is relatively severe, inconvenient maintenance, adds that installing space is narrow and small, has strict requirement to the reliability of gear-box, weight, boundary dimension.
In the design of traditional epicyclic gearbox, because the carrying of slow speed turbine stage planet carrier is higher, in order to ensure the rigidity supported, general employing double-walled cage-shaped structure, material is cast iron.Two walls of described planet carrier are uniformly distributed several bearing pin mounting hole, and be furnished with a bearing pin in a pair corresponding mounting hole, planet wheel is arranged on bearing pin by bearing, isolates between planet wheel and planet carrier with block.Sun wheel shaft and planet carrier, by standard splined, are isolated with baffle plate between sun wheel shaft.Meanwhile, the internal spline that output shaft is prepared by external splines and output planetary frame connects, transmitting torque.
For cage-shaped structure planet carrier, planet wheel and bearing pin install difficulty, meanwhile, stir oil and produce eddy current, reduce working efficiency.And the intensity of cast iron and cryogenic property all undesirable, there is certain risk.Block, the baffle number of gear-box internal configurations are numerous, add processing and administration cost.Center baffle between the planet carrier of double-walled planet carrier structure, the sun wheel shaft containing sun gear and standard spline, sun gear, after the external splines combination of output shaft, significantly adds the axial dimension of gear-box, whole height and weight, is unfavorable for installation and maintenance.Epicyclic gearbox operating mode is severe and changeable, and do not arrange again the limit for tonnage mechanism of gear-box, gear-box failure mode is indefinite.Once lose efficacy, be difficult to judge responsibility, and likely cause gear-box to suppress extremely, destroyed gear-box other important spare parts inner or outside further.
Summary of the invention
The object of the invention is to: the whole height existed for existing epicyclic gearbox and weight greatly, are not easy to installation and maintenance; Amount of parts is many, and management processing cost is high; There is no the practical problems such as the limit for tonnage mechanism of gear-box, propose a kind of new planetary pinion box assembly.
The object of the present invention is achieved like this: a kind of planetary pinion box assembly, comprises casing, planetary gear train, output shaft and seal arrangement, it is characterized in that:
A) casing comprises front casing, prime ring gear, rear class ring gear and rear box, and they are sequentially bolted to connection;
B) coaxially connected by multistage planet train, prime ring gear is the shared ring gear of high speed level planetary gear train, and rear class ring gear is the shared ring gear of slow speed turbine stage planetary gear train;
C) sun wheel shaft of first order planetary gear train is input shaft, and the planet carrier of previous stage planetary gear train is directly engaged with the sun gear of rear stage planetary gear train by tooth-like spline, and sun gear at different levels is the floating location of arranged in co-axial alignment sequentially;
D) planetary gear train at different levels all adopts single armed planet carrier structure, and wherein slow speed turbine stage planet carrier and planet wheel bearing pin are the integrative-structure of synchronous forging molding;
E) output planetary frame output terminal is provided with external splines, and the input end of output shaft is provided with the internal spline of coupling, and described external splines connects with internal spline.
In the present invention: the first second level planetary gear train is high speed level planetary gear train, 3rd fourth stage planetary gear train is slow speed turbine stage star wheel series, planet wheel in slow speed turbine stage planetary gear train by being arranged on without cup roller bearing on corresponding bearing pin, and is located by circlip.
In the present invention: previous stage planet carrier is directly engaged with rear stage sun gear by tooth-like spline, each planet carrier front end is fixed on corresponding sun gear respectively by circlip.
In the present invention: on the axle between the output terminal external splines and pivoted frame of output planetary frame, limit for tonnage stress groove is set.The invention has the advantages that:
Due to the shared ring gear that prime ring gear is front 2 grades of planetary gear train, rear class ring gear is the shared ring gear of rear 2 grades of planetary gear train, adopt single armed planet carrier simultaneously, upper level planet carrier is directly connected with next stage sun gear by tooth-like spline, traditional sun wheel shaft containing sun gear and spline is substituted with single sun gear, directly contact location between sun gear, significantly shorten the axial dimension of each planetary gear train.Because the planet wheel in planetary gear train is by being arranged on planet wheel bearing pin without cup roller bearing, and being positioned on planet wheel bearing pin by circlip, reducing the radial dimension of gear-box.By these combinations, significantly reduce height and the weight of planetary pinion box assembly, be convenient to installation and maintenance.
Bottom output planetary frame and set by its output terminal, limit for tonnage stress groove is set between external splines, when the load of planetary pinion box assembly exceedes limit value, output planetary frame will rupture at this limit for tonnage stress groove place, output shaft can also freely rotate simultaneously, prevents from destroying gear-box inside or other important spare parts outside further.And gear-box was once lose efficacy with this Design Mode, then illustrate that load exceedes design conditions, responsibility was client.Otherwise gear-box is with other mode failures even, then responsibility is in supplier.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment that the present invention relates to.
In figure: 1, front casing; 2, prime ring gear; 3, circlip; 4, rear class ring gear; 5, planet carrier; 6, sun gear; 7, output planetary frame; 8, limit for tonnage stress groove; 9, external splines; 10, rear box; 11, output shaft; 12, bolt; 13, planet wheel; 14, without cup roller bearing; 15, circlip; 16, planet wheel bearing pin.
Embodiment
Accompanying drawing discloses the concrete structure of a kind of embodiment that the present invention relates to without limitation, is further described the present invention below in conjunction with accompanying drawing.
As seen from Figure 1, patent of the present invention comprises casing, planetary gear train, output shaft and seal arrangement, and wherein casing comprises front casing 1, prime ring gear 2, rear class ring gear 4 and rear box 10, and they are sequentially fixedly connected with by bolt 12; Coaxially connected by 4 grades of planetary gear train, prime ring gear 2 is the shared ring gear of first and second grade of high speed level planetary gear train, and rear class ring gear 4 is the shared ring gear of third and fourth grade of slow speed turbine stage planetary gear train; The planet carrier 5 of previous stage planetary gear train is directly engaged with the sun gear 6 of rear stage planetary gear train by tooth-like spline, and sun gear 6 sequential at different levels floats and locates.Planetary gear train at different levels all adopts single armed planet carrier structure, wherein the integrative-structure of third level planet carrier 5 and output planetary frame 7 forging molding synchronous with planet wheel bearing pin 16.Output planetary frame 7 output terminal is provided with external splines 9, and the input end of output shaft 11 is provided with the internal spline of coupling, and external splines 9 connects with the internal spline of coupling.
In the present embodiment, the planet wheel 13 in the 3rd fourth stage planetary gear train by being arranged on corresponding bearing pin 16 without cup roller bearing 14, and is located by circlip 15.
In the present embodiment, the sun wheel shaft of first order planetary gear train is input shaft, and previous stage planet carrier 5 is directly engaged with next stage sun gear 6 by tooth-like spline, and each planet carrier front end is positioned on corresponding sun gear 6 respectively by circlip 3.
In the present embodiment, the axle between the output terminal external splines 9 exporting pivoted frame 7 and pivoted frame arranges limit for tonnage stress groove 8.
In the present embodiment, in the first order and second level high-speed planets system and third level fourth stage low speed planet train, the difference of planet carrier is only: the planet wheel bearing pin 16 of high speed level planetary gear train is fixed on planet carrier by interference fit.
The seal arrangement that the present invention relates to can adopt traditional sealing means.
The present embodiment is not limitation of the present invention, and when specifically implementing, the shared relation of gear ring also can change according to actual conditions, adopts three grades of shared gear rings, or independent gear ring.Can adopt the planet carrier of triangular structure in slow speed turbine stage planetary gear train, the planet carrier in high speed level planetary gear train also can adopt the integrative-structure of forging molding synchronous with planet wheel bearing pin.

Claims (4)

1. a planetary pinion box assembly, comprises casing, planetary gear train, output shaft and seal arrangement, it is characterized in that:
A) casing comprises front casing, prime ring gear, rear class ring gear and rear box, and they are sequentially bolted to connection;
B) coaxially connected by multistage planet train, prime ring gear is the shared ring gear of high speed level planetary gear train, and rear class ring gear is the shared ring gear of slow speed turbine stage planetary gear train;
C) sun wheel shaft of first order planetary gear train is input shaft, and the planet carrier of previous stage planetary gear train is directly engaged with the sun gear of rear stage planetary gear train by tooth-like spline, and sun gear at different levels is the floating location of arranged in co-axial alignment sequentially;
D) planetary gear train at different levels all adopts single armed planet carrier structure, and wherein slow speed turbine stage planet carrier and planet wheel bearing pin are the integrative-structure of synchronous forging molding;
E) output planetary frame output terminal is provided with external splines, and the input end of output shaft is provided with the internal spline of coupling, and described external splines connects with internal spline.
2. planetary pinion box assembly according to claim 1, it is characterized in that: the first second level planetary gear train is high speed level planetary gear train, 3rd fourth stage planetary gear train is slow speed turbine stage star wheel series, planet wheel in slow speed turbine stage planetary gear train by being arranged on without cup roller bearing on corresponding bearing pin, and is located by circlip.
3. planetary pinion box assembly according to claim 1, is characterized in that: previous stage planet carrier is directly engaged with rear stage sun gear by tooth-like spline, and each planet carrier front end is fixed on corresponding sun gear respectively by circlip.
4. according to the planetary pinion box assembly one of claim 1-3 Suo Shu, it is characterized in that: on the axle between the output terminal external splines and pivoted frame of output planetary frame, limit for tonnage stress groove is set.
CN201410823466.1A 2014-12-26 2014-12-26 Planetary gearbox assembly Pending CN104482140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410823466.1A CN104482140A (en) 2014-12-26 2014-12-26 Planetary gearbox assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410823466.1A CN104482140A (en) 2014-12-26 2014-12-26 Planetary gearbox assembly

Publications (1)

Publication Number Publication Date
CN104482140A true CN104482140A (en) 2015-04-01

Family

ID=52756718

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410823466.1A Pending CN104482140A (en) 2014-12-26 2014-12-26 Planetary gearbox assembly

Country Status (1)

Country Link
CN (1) CN104482140A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107013675A (en) * 2016-01-28 2017-08-04 通用电气公司 Gearbox planetary squeeze-film damping device
CN110017353A (en) * 2019-04-15 2019-07-16 大连科技学院 MW class integrated power bypass type wind power speed-increasing machine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268995B (en) * 1992-07-07 1995-12-06 Mitsubishi Electric Corp Driving motor for an electric vehicle
CN1587681A (en) * 2004-10-12 2005-03-02 南京高速齿轮制造有限公司 Yaw gearbox for wind power generator
CN201129435Y (en) * 2007-12-17 2008-10-08 南京高速齿轮制造有限公司 Output device of wind power generator gear box
CN201129436Y (en) * 2007-12-17 2008-10-08 南京高速齿轮制造有限公司 Output mechanism of wind power generator gear box
CN201368188Y (en) * 2009-02-13 2009-12-23 南京高速齿轮制造有限公司 Supporting structure for planet gear
CN201368192Y (en) * 2009-02-13 2009-12-23 南京高速齿轮制造有限公司 Single-walled integral planet carrier
CN202579913U (en) * 2012-05-03 2012-12-05 南京高速齿轮制造有限公司 Integral type ring gear inside wind power generation variable pitch gear box
EP2672144A2 (en) * 2012-05-30 2013-12-11 Fairfield Manufacturing Company, Inc. Overload protection device
WO2014162710A1 (en) * 2013-04-05 2014-10-09 株式会社デンソー Power transmission device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268995B (en) * 1992-07-07 1995-12-06 Mitsubishi Electric Corp Driving motor for an electric vehicle
CN1587681A (en) * 2004-10-12 2005-03-02 南京高速齿轮制造有限公司 Yaw gearbox for wind power generator
CN201129435Y (en) * 2007-12-17 2008-10-08 南京高速齿轮制造有限公司 Output device of wind power generator gear box
CN201129436Y (en) * 2007-12-17 2008-10-08 南京高速齿轮制造有限公司 Output mechanism of wind power generator gear box
CN201368188Y (en) * 2009-02-13 2009-12-23 南京高速齿轮制造有限公司 Supporting structure for planet gear
CN201368192Y (en) * 2009-02-13 2009-12-23 南京高速齿轮制造有限公司 Single-walled integral planet carrier
CN202579913U (en) * 2012-05-03 2012-12-05 南京高速齿轮制造有限公司 Integral type ring gear inside wind power generation variable pitch gear box
EP2672144A2 (en) * 2012-05-30 2013-12-11 Fairfield Manufacturing Company, Inc. Overload protection device
WO2014162710A1 (en) * 2013-04-05 2014-10-09 株式会社デンソー Power transmission device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107013675A (en) * 2016-01-28 2017-08-04 通用电气公司 Gearbox planetary squeeze-film damping device
CN110017353A (en) * 2019-04-15 2019-07-16 大连科技学院 MW class integrated power bypass type wind power speed-increasing machine

Similar Documents

Publication Publication Date Title
US9657721B2 (en) Gearbox unit with gear carrier
CN104482140A (en) Planetary gearbox assembly
CN202545696U (en) High-power two-stage speed-increasing planet gearbox
CN103912636B (en) Wheel-side reduction device
CN204512318U (en) Planetary pinion box assembly
CN201517589U (en) Crane differential planet gear case
CN104373577B (en) A kind of self-lubricating planetary gear gear box sub-case
CN202579833U (en) Novel floating baffle plate type planetary gear rotation mechanism
CN205578659U (en) Differential planetary gerar grinding roller box that stands
CN111439117A (en) Coaxial two-gear planetary row electric drive axle for automobile
CN203847632U (en) Hub reduction device
CN202520876U (en) Motor gear box
CN104500705A (en) Sub-gearbox for planetary gear train of transmission
CN202612486U (en) Fracturing pump driving device for planetary reduction box
CN104500703A (en) Output end of wind driven generator yawing and pitch-varying gear box
CN202468855U (en) Differential-gear floating wheel speed reducer
CN104373562B (en) A kind of lubricating type planet wheel gear box sub-case
CN202326930U (en) Bevel gear compound transmission mechanism
CN205064705U (en) Compact gear with high drive ratio
CN104482189B (en) Lubricating type gearbox with main box and secondary box
CN108953505A (en) A kind of dual gear structure gear-box for middling speed half-direct-drive wind driven generator group
CN204061749U (en) The automobile-used plane table thermoconductivity meter of a kind of Large Copacity cement mixing
CN202579826U (en) Differential planetary double-shunting central driving gearbox
CN203223518U (en) Hydraulic motor speed reducer
CN201448404U (en) Integrated double planetary reduction gear for coal mining machine on low coal seam

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150401