CN105756863B - A kind of wind driven generator principal shaft with coupling pooling feature - Google Patents

A kind of wind driven generator principal shaft with coupling pooling feature Download PDF

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Publication number
CN105756863B
CN105756863B CN201610204665.3A CN201610204665A CN105756863B CN 105756863 B CN105756863 B CN 105756863B CN 201610204665 A CN201610204665 A CN 201610204665A CN 105756863 B CN105756863 B CN 105756863B
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China
Prior art keywords
motion thread
coupling
shaft
buffer spring
mounting hole
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CN201610204665.3A
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CN105756863A (en
Inventor
宋中越
甄冬
师占群
马姣姣
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Hebei University of Technology
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Hebei University of Technology
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
    • F16D3/12—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • F16F15/13164—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses characterised by the supporting arrangement of the damper unit
    • F16F15/13171—Bearing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • F16F15/133—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
    • F16F15/134—Wound springs
    • F16F15/1343—Wound springs characterised by the spring mounting
    • F16F15/13461—Set of springs, e.g. springs within springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/0011—Balancing, e.g. counterbalancing to produce static balance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2232/00—Nature of movement
    • F16F2232/02—Rotary
    • 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

A kind of wind driven generator principal shaft with coupling pooling feature, the direction that wheel hub and tooth connection roller box are connected with main shaft is respectively forward and backward, it is characterized in that the main shaft includes the coaxial mounted wheelboss flange of order, coupler, buffer spring connection front stall, motion thread set, motion thread bar, buffer spring connection back seat, splined shaft and gear-box connecting shaft from front to back, buffer spring is also installed between buffer spring connection front stall and buffer spring connection back seat.

Description

A kind of wind driven generator principal shaft with coupling pooling feature
Technical field
The present invention relates to wind-driven generator transmission field, is specifically a kind of wind driven generator principal with coupling pooling feature Axis.
Background technology
With the utilization of continually developing to wind energy, the installation amount of wind-driven generator is continuously increased, therewith problem appear to is that The failure rate of wind-driven generator is continuously increased, and is found by analysis, and the highest position of wind-driven generator failure rate is wind-power electricity generation The gear-box of machine, and the reason for wind-driven generator wheel-box failure rate is higher, to be due to that wind-driven generator is provided by RANDOM WIND dynamic Power, therefore its power provided has random variability so that the gear teeth in gear-box are constantly impacted, and gear-box is direct Power input is by main shaft transmission, and main shaft is larger in the space of cabin inner periphery, so being designed to main shaft, subtracts Impact between the small gear teeth, the failure rate to reducing gear-box, reduces loss, increases economic efficiency and have great importance.
Existing wind-driven generator is taking Optimal Control Strategy to realize the impact for reducing RANDOM WIND to greatest extent and bringing Method while be more to be completed by installing buffer unit at other positions, but the buffering dress of existing wind-driven generator Put and be suitable for vertical axis aerogenerator more, as Chinese patent CN201510533906.4 discloses a kind of synergy buffering vertical axis Wind-driven generator, the outer end which is inclined to blade in shaft are equipped with synergy buffer unit, by synergy buffer unit by leaf The positive moment that the reverse impact power that piece is subject to is converted into shaft rotation is transferred in shaft and realizes buffering effect.And for trunnion axis It is more difficult into row buffering to it due to its main shaft axially loaded in itself and unbalanced for wind-driven generator.Therefore provide A kind of main shaft with pooling feature suitable for horizontal axis wind-driven generator becomes urgent problem to be solved in the prior art.
The content of the invention
For overcome the deficiencies in the prior art, the impact between the gear teeth as caused by RANDOM WIND is relaxed and since assembling misses Difference causes the bending stress that main shaft produces.
The present invention provides a kind of wind driven generator principal shaft with coupling pooling feature, and wheel hub and tooth connection are connected with main shaft The direction of roller box is respectively forward and backward, it is characterized in that the main shaft includes the coaxial mounted wheelboss flange of order, coupling from front to back Clutch, buffer spring connection front stall, motion thread set, motion thread bar, buffer spring connection back seat, splined shaft and gear-box connect Spindle, buffer spring is also installed between buffer spring connection front stall and buffer spring connection back seat；
Wheelboss flange is equipped with the hub installing hole 1.1 on ring flange and the coupler positioned at neck flange end is installed Hole；
Coupler includes coupling shroud, preceding coupling bomb reed, the coupling that order is arranged and is fastenedly connected by bolt from front to back Close telophragma, rear coupling bomb reed and coupling hub disk；The coupling in wheelboss flange is bolted in the front end face of coupling shroud On device mounting hole, protrusion forms neck to side surface axially rearward after coupling,
Thrust bearing is set with the neck of coupling hub disk, and front stall, thrust bearing and buffer spring are connected with buffer spring Connection front stall and the neck for coupling hub disk are in clearance fit, the seat ring and blowout patche of thrust bearing respectively with couple hub disk end face and The front end face contact of buffer spring connection front stall；Buffer spring connection front stall is annular disk, its centre bore is matched somebody with somebody for coupler back seat Close hole, the rear end face of buffer spring connection front stall has a mounting base before N number of spring for being uniformly distributed circumferentially, mounting base before spring Mounting hole before upper tool spring；Buffer spring connection back seat be annular disk, and buffer spring connects the front end face of back seat close to excircle It is uniformly distributed circumferentially mounting base after N number of spring, there are mounting hole after spring, the both ends point of buffer spring in mounting base after spring An Zhuan not be before spring after mounting hole and spring in mounting hole；The centre bore of buffer spring connection back seat is motion thread bar boss Matching hole, circumferentially there is screw splined shaft connecting hole around centre bore；
The motion thread set is the casing with transmission internal thread, has flange in the front end of motion thread set, There is motion thread set mounting hole, the motion thread set covers neck of the mounting hole with coupling hub disk by motion thread on flange Rearward end be fixedly connected；The outer surface of the motion thread bar has covers matched motion thread with motion thread, is driven spiral shell The rearward end of rasp bar has flange and protrudes the motion thread bar boss in flanged rear face, has transmission spiral shell on the end face of flange Rasp bar mounting hole, motion thread and the motion thread set of the outer surface of the motion thread bar coordinate, motion thread bar mounting hole Coordinate with screw splined shaft connecting hole, the motion thread bar boss that motion thread bar boss stretches into buffer spring connection back seat coordinates Kong Zhong；
Splined shaft outer surface has spline, and the front end face of splined shaft forms flange, has spline shaft mounting hole on flange, flower Key shaft mounting hole matches somebody with somebody to merge with the both ends of screw splined shaft connecting hole respectively with motion thread bar mounting hole to be connected by bolt；
Gear-box connecting shaft is hollow shaft, is coaxial splined hole inside gear-box connecting shaft, spline internal surface of hole has Can be with the internal spline of spline fitted, gear-box connecting shaft rear end face is circumferentially distributed, is approached on gear-box connecting shaft outer wall There is bolt to launch fenestra, the bolt is launched fenestra and is installed on for launching in gear-box connecting shaft mounting hole at rear end face Bolt.
A kind of wind driven generator principal shaft with coupling pooling feature, it is characterized in that 4≤N≤8.It is preferred that N=6.
Compared with prior art, a kind of wind driven generator principal shaft with coupling pooling feature provided by the invention is beneficial 1) effect is due to the effect of coupling bomb reed in coupler so that wheelboss flange and gear-box connecting shaft even in concentricity compared with The bending stress that gear-box will not be allowed to be subject to blower fan main shaft to bear when poor；Being capable of bending caused by validation de-assembly Load, is particularly suitable for horizontal axis wind-driven generator；
2) when input power changes, due to the effect of thrust bearing, moment gear-box connecting shaft is changed in power Rotation speed change will not be covered with motion thread and changed immediately, so as to avoid the acute variation of gear-box connecting shaft output power；
3) when input power increases, motion thread set relatively rotates with motion thread bar and then causes the axis of motion thread bar To movement, the frictional force between buffer spring connection front stall and coupler is set gradually to increase, after equilibrium state is reached, gear-box Connecting shaft starts to rotate synchronously with coupler, and then drives the gear-box of wind-driven generator to rotate, and it is dynamic can effectively to dissolve input The temporary impact that power sharp increase produces.
To sum up, there is provided it is a kind of have coupling pooling feature wind driven generator principal shaft can relax mitigation led by RANDOM WIND Impact between the gear teeth of cause and since rigging error causes the bending stress that main shaft produces, has simple in structure, and machinery is steady It is qualitative good, gearbox fault rate can be effectively reduced, is promoted suitable for practical application.
Brief description of the drawings
Fig. 1 is a kind of overall structure signal with the wind driven generator principal shaft for coupling pooling feature of the embodiment of the present invention Figure；
Fig. 2 is a kind of wheelboss flange structure with the wind driven generator principal shaft for coupling pooling feature of the embodiment of the present invention Schematic diagram；
Fig. 3 is that a kind of coupler structure with the wind driven generator principal shaft for coupling pooling feature of the embodiment of the present invention shows It is intended to；
Fig. 4 is a kind of buffer spring connection with the wind driven generator principal shaft for coupling pooling feature of the embodiment of the present invention Front stall structure diagram；
Fig. 5 is a kind of buffer spring connection with the wind driven generator principal shaft for coupling pooling feature of the embodiment of the present invention Rear seat construction schematic diagram；
Fig. 6 is a kind of gear-box connecting shaft with the wind driven generator principal shaft for coupling pooling feature of the embodiment of the present invention Structure diagram,
Fig. 7 is a kind of gear-box connecting shaft with the wind driven generator principal shaft for coupling pooling feature of the embodiment of the present invention The complete section schematic diagram in A-A directions along Fig. 6；
Fig. 8 is that a kind of spline shaft structure with the wind driven generator principal shaft for coupling pooling feature of the embodiment of the present invention shows It is intended to；
Fig. 9 is a kind of motion thread bar knot with the wind driven generator principal shaft for coupling pooling feature of the embodiment of the present invention Structure schematic diagram；
Figure 10 is a kind of motion thread set with the wind driven generator principal shaft for coupling pooling feature of the embodiment of the present invention Structure diagram；
Figure 11 is a kind of working status knot with the wind driven generator principal shaft for coupling pooling feature of the embodiment of the present invention Structure schematic diagram；
In figure
1st, wheelboss flange, 1.1, hub installing hole, 1.2, coupler mounting hole；
2nd, coupler, 2.1, coupling shroud, 2.2, preceding coupling bomb reed, 2.3, coupling telophragma, 2.4, rear coupling spring Piece, 2.5, coupling hub disk；
3rd, thrust bearing；4th, buffer spring connection front stall, 4.1, mounting base before spring, 4.2, coupler back seat matching hole；
5th, buffer spring；6th, buffer spring connection back seat, 6.1, screw splined shaft connecting hole, 6.2, mounting base after spring, 6.3rd, motion thread bar boss matching hole；
7th, gear-box connecting shaft, 7.1, bolt launch fenestra, 7.2, gear-box connecting shaft mounting hole, 7.3, splined hole, 7.4th, internal spline；
8th, splined shaft, 8.1, spline, 8.2, spline shaft mounting hole；
9th, motion thread bar, 9.1, motion thread, 9.2, motion thread bar mounting hole, 9.3, motion thread bar boss；
10th, motion thread set, 10.1, motion thread set mounting hole, 10.2, transmission internal thread；
Embodiment
The present invention is described in detail with reference to embodiment and its attached drawing.Embodiment be using technical solution of the present invention before The specific implementation of progress is proposed, gives detailed embodiment and process.But claims hereof protection domain is not limited to Following embodiment descriptions.
A kind of wind driven generator principal shaft (abbreviation main shaft, referring to Fig. 1-10) with coupling pooling feature that the present invention designs The direction that wheel hub and tooth connection roller box are connected with main shaft is respectively forward and backward, and the main shaft, which includes coaxial order from front to back, pacifies The wheelboss flange 1 of dress, coupler 2, buffer spring connection front stall 4, motion thread set 10, motion thread bar 9, buffer spring connection Back seat 6, splined shaft 8 and gear-box connecting shaft 7, also installation is slow between buffer spring connection front stall 4 and buffer spring connection back seat 6 Rush spring 5；
Wheelboss flange 1 (referring to Fig. 1) is equipped with the hub installing hole 1.1 on ring flange and positioned at neck flange end Coupler mounting hole 1.2；
Coupler 2 (referring to Fig. 2) includes coupling shroud 2.1, the preceding coupling spring that order is arranged and is fastenedly connected by bolt Piece 2.2, coupling telophragma 2.3, rear coupling bomb reed 2.4 and coupling hub disk 2.5；The front end face of coupling shroud is bolted On the coupler mounting hole of wheelboss flange, protrusion forms neck to 2.5 end face of coupling hub disk axially rearward,
Thrust bearing 3 is set with the neck of coupling hub disk, and front stall 4, thrust bearing and buffering elastic are connected with buffer spring It is in clearance fit that spring, which connects front stall and the neck for coupling hub disk, and the seat ring and blowout patche of thrust bearing are respectively with coupling the end face of hub disk The front end face contact of front stall is connected with buffer spring；Buffer spring connection front stall 4 is annular disk, its centre bore is coupler back seat Matching hole 4.2, the rear end face of buffer spring connection front stall have mounting base 4.1 before the N number of spring being uniformly distributed circumferentially, spring Mounting hole before tool spring in preceding mounting base.Buffer spring connection back seat is annular disk, and the front end face of buffer spring connection back seat connects Nearly excircle is uniformly distributed circumferentially mounting base 6.2 after N number of spring, has mounting hole after spring, buffering in mounting base after spring The both ends of spring are separately mounted to before spring after mounting hole and spring in mounting hole；The centre bore of buffer spring connection back seat is biography Dynamic threaded rod boss matching hole 6.3, circumferentially there is screw splined shaft connecting hole 6.1 around centre bore；
The motion thread set 10 is the casing with transmission internal thread 10.2, is had in the front end of motion thread set convex Edge, has motion thread set mounting hole 10.1 on flange, and the motion thread set covers mounting hole with coupling by motion thread The rearward end of the neck of hub disk is fixedly connected.The outer surface of the motion thread bar has covers matched transmission spiral shell with motion thread Line 9.1, the rearward end of motion thread bar has flange and protrudes the motion thread bar boss 9.3 in flanged rear face, in flange There is motion thread bar mounting hole 9.2, motion thread and the motion thread set of the outer surface of the motion thread bar are matched somebody with somebody on end face Close, motion thread bar mounting hole coordinates with screw splined shaft connecting hole, and motion thread bar boss stretches into buffer spring connection back seat Motion thread bar boss matching hole in.
8 outer surface of splined shaft has spline 8.1, and the front end face of splined shaft forms flange, has splined shaft installation on flange Hole 8.2, spline shaft mounting hole 8.2 are matched somebody with somebody with the both ends of screw splined shaft connecting hole 6.1 and are merged respectively with motion thread bar mounting hole It is connected by bolt.
Gear-box connecting shaft 7 is hollow shaft, is coaxial splined hole 7.3 inside gear-box connecting shaft, spline internal surface of hole With can be with the internal spline 7.4 of spline fitted, gear-box connecting shaft rear end face be circumferentially distributed, in gear-box connecting shaft outer wall On there is bolt to launch fenestra 7.1 close at rear end face, the bolt, which launches fenestra and is used to launch, is installed on gear-box connecting shaft Bolt on mounting hole 7.2.
Embodiment
In the present embodiment, N=6.
A kind of wind driven generator principal shaft with coupling pooling feature in the present embodiment, overall structure diagram such as Fig. 1 It is shown, wheelboss flange structure diagram as shown in Fig. 2, coupler structure schematic diagram as shown in figure 3, buffer spring connect front stall knot Structure schematic diagram is as shown in figure 4, buffer spring connects rear seat construction schematic diagram as shown in figure 5, gear-box connecting axle structure schematic diagram As shown in fig. 6, gear-box connecting shaft complete section schematic diagram vertically as shown in fig. 7, spline shaft structure schematic diagram as shown in figure 8, Motion thread rod structure schematic diagram as shown in figure 9, motion thread nested structure schematic diagram is as shown in Figure 10, illustrate by working state structure Figure is as shown in figure 11.
A kind of wind driven generator principal shaft (hereinafter referred to as main shaft) work original with coupling pooling feature provided by the invention Reason and process are as follows：
1) due to the effect of coupling bomb reed in coupler so that wheelboss flange is with gear-box connecting shaft even in concentricity The bending stress that gear-box will not be allowed to be subject to blower fan main shaft to bear when poor；
2) when input power changes, wheelboss flange drives coupler to rotate, and then drives motion thread set to rotate, Due to the effect of thrust bearing, power change moment buffer spring connection front stall and buffer spring, buffer spring connection back seat, Motion thread bar, splined shaft, gear-box connecting shaft will not be covered with motion thread to be rotated immediately, and can be connected with buffer spring Front stall 4 rotates synchronously, so as to avoid the acute variation of gear-box connecting shaft output power；
3) when input power increases, motion thread set relatively rotates with motion thread bar and then causes the axis of motion thread bar To movement, motion thread bar, which is axially moved, drives buffer spring connection back seat and splined shaft to be translatable forward, buffer spring connection Front stall promotes thrust bearing under the action of buffer spring, makes the frictional force between buffer spring connection front stall and coupler gradual Increase, after equilibrium state is reached, gear-box connecting shaft starts to rotate synchronously with coupler, and then drives the tooth of wind-driven generator Roller box rotates.
To sum up, main shaft provided by the invention, can be while bending stress be dissolved, additionally it is possible to alleviate shock loading, will Moment momentum is offset with acting force of the spring, reaches the effect for dissolving bending load and shock loading.
Using technical solutions according to the invention, or those skilled in the art is under the inspiration of technical solution of the present invention, Similar technical solution is designed, and reaches above-mentioned technique effect, is to fall into protection scope of the present invention.

Claims (3)

1. a kind of wind driven generator principal shaft with coupling pooling feature, the direction point of wheel hub and tooth connection roller box is connected with main shaft Not Wei forward and backward, it is characterized in that the main shaft includes the coaxial mounted wheelboss flange of order, coupler, buffering elastic from front to back Spring connection front stall, motion thread set, motion thread bar, buffer spring connection back seat, splined shaft and gear-box connecting shaft, buffering elastic Spring connects and also installs buffer spring between front stall and buffer spring connection back seat；
Wheelboss flange is equipped with the hub installing hole on ring flange and the coupler mounting hole positioned at neck flange end；
Coupler is included in the coupling shroud, preceding coupling bomb reed, coupling that order is arranged and is fastenedly connected by bolt from front to back Disk, rear coupling bomb reed and coupling hub disk；The coupler peace in wheelboss flange is bolted in the front end face of coupling shroud Filling on hole, protrusion forms neck to side surface axially rearward after coupling,
Thrust bearing being set with the neck of coupling hub disk front stall being connected with buffer spring, thrust bearing is connected with buffer spring Front stall and the neck for coupling hub disk are in clearance fit, and the seat ring and blowout patche of thrust bearing are respectively with coupling end face and the buffering of hub disk The front end face contact of spring connection front stall；Buffer spring connection front stall is annular disk, its centre bore is coupler back seat matching hole, The rear end face of buffer spring connection front stall has a mounting base before N number of spring for being uniformly distributed circumferentially, has before spring in mounting base Mounting hole before spring；Buffer spring connection back seat is annular disk, and the front end face of buffer spring connection back seat is all close to excircle edge To mounting base after N number of spring is uniformly distributed, there is mounting hole after spring in mounting base after spring, the both ends of buffer spring are pacified respectively In mounting hole after mounting hole before spring and spring；The centre bore of buffer spring connection back seat coordinates for motion thread bar boss , circumferentially there is screw splined shaft connecting hole in hole around centre bore；
The motion thread set is the casing with transmission internal thread, has flange in the front end of motion thread set, in flange Upper have a motion thread set mounting hole, the motion thread set by motion thread set mounting hole with after the neck for coupling hub disk End is fixedly connected；The outer surface of the motion thread bar has covers matched motion thread, motion thread bar with motion thread Rearward end there is flange and protrude the motion thread bar boss in flanged rear face, there is motion thread bar on the end face of flange Mounting hole, motion thread and the motion thread set of the outer surface of the motion thread bar coordinate, motion thread bar mounting hole and silk Bar splined shaft connecting hole coordinates, and motion thread bar boss stretches into the motion thread bar boss matching hole of buffer spring connection back seat In；
Splined shaft outer surface has spline, and the front end face of splined shaft forms flange, has spline shaft mounting hole, splined shaft on flange Mounting hole matches somebody with somebody to merge with the both ends of screw splined shaft connecting hole respectively with motion thread bar mounting hole to be connected by bolt；
Gear-box connecting shaft is hollow shaft, is coaxial splined hole inside gear-box connecting shaft, spline internal surface of hole has can With the internal spline of spline fitted, gear-box connecting shaft rear end face is circumferentially distributed, close to rear end on gear-box connecting shaft outer wall There is bolt to launch fenestra, the bolt launches fenestra and is used to launch the spiral shell being installed in gear-box connecting shaft mounting hole at face Bolt.
A kind of 2. wind driven generator principal shaft with coupling pooling feature as claimed in claim 1, it is characterized in that 4≤N≤8.
A kind of 3. wind driven generator principal shaft with coupling pooling feature as claimed in claim 1, it is characterized in that N=6.
CN201610204665.3A 2016-03-31 2016-03-31 A kind of wind driven generator principal shaft with coupling pooling feature Active CN105756863B (en)

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CN110803184B (en) * 2019-09-26 2020-07-31 北京地铁车辆装备有限公司 Bogie for vehicle
CN113432872B (en) * 2021-06-24 2022-10-11 西南石油大学 Device and method for testing frictional wear characteristics of downhole thrust bearing under impact load

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CN202789321U (en) * 2012-07-30 2013-03-13 西门子公司 Wind turbine capable of detecting cracks of main shaft
CN104653414A (en) * 2013-11-22 2015-05-27 安徽顺然新能源有限公司 Variable-coupling ultralow-wind-speed-started wind driven generator
CN204647042U (en) * 2015-01-28 2015-09-16 金余和 A kind of damping, buffering axle
CN104653647A (en) * 2015-01-28 2015-05-27 金余和 Shock-absorption buffer shaft and application
CN204615569U (en) * 2015-04-23 2015-09-02 兰州电机股份有限公司 A kind of hydraulic moment changeable brushless synchronous electric excitation generator group
CN205423081U (en) * 2016-03-31 2016-08-03 河北工业大学 Aerogenerator main shaft with coupling buffer function

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