CN105782409A - Torsion shaft device, gearbox and wind driven generator - Google Patents

Torsion shaft device, gearbox and wind driven generator Download PDF

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Publication number
CN105782409A
CN105782409A CN201610243359.0A CN201610243359A CN105782409A CN 105782409 A CN105782409 A CN 105782409A CN 201610243359 A CN201610243359 A CN 201610243359A CN 105782409 A CN105782409 A CN 105782409A
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CN
China
Prior art keywords
gear
hollow axle
torsion shaft
shaft
torsional axis
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.)
Granted
Application number
CN201610243359.0A
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Chinese (zh)
Other versions
CN105782409B (en
Inventor
易小刚
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.)
Sany Heavy Energy Co Ltd
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Sany Heavy Energy Equipment Co Ltd
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Publication date
Application filed by Sany Heavy Energy Equipment Co Ltd filed Critical Sany Heavy Energy Equipment Co Ltd
Priority to CN201610243359.0A priority Critical patent/CN105782409B/en
Publication of CN105782409A publication Critical patent/CN105782409A/en
Application granted granted Critical
Publication of CN105782409B publication Critical patent/CN105782409B/en
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    • 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
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/023Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • 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
    • F16H57/0018Shaft assemblies for gearings
    • F16H57/0031Shaft assemblies for gearings with gearing elements rotatable supported on the shaft
    • 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
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/021Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • 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
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H2057/02039Gearboxes for particular applications
    • F16H2057/02078Gearboxes for particular applications for wind turbines
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The invention provides a torsion shaft device. The torsion shaft device comprises a first supporting base, a first gear, a second gear, a hollow shaft and a torsion shaft, wherein the hollow shaft can be rotatably arranged on the first supporting base; the first end part and the second end part of the hollow shaft are separately positioned at the two sides of the first supporting base; the first gear is fixedly arranged on the first end part of the hollow shaft, and the second gear is arranged on the second end part of the hollow shaft in a sleeved manner; a centre cavity is arranged on the hollow shaft; the first end of the torsion shaft extends to the first end part of the hollow shaft through the centre cavity; the first end of the torsion shaft and the first end part of the hollow shaft are fixed in a circumferential direction; and the second end of the torsion shaft is fixedly connected to the end surface of the second gear. In a working process, the hollow shaft bears force of gravity, radial force and bending moment applied by the first gear and the second gear, torque is transmitted between the first gear and the second gear through the torsion shaft, i.e., the first gear drives the second gear to rotate mainly by virtue of the torsion shaft. Besides, the invention further discloses a gearbox and a wind driven gearbox.

Description

Torsion shaft device, gear-box and wind-driven generator
Technical field
The present invention relates to gear transmission technology, be specifically related to a kind of torsion shaft device, gear-box and there is the wind-driven generator of this gear-box.
Background technology
Wind-driven generator is to utilize the power-actuated TRT of natural wind, and it generally includes tower, impeller and cabin, and cabin is positioned at the top of tower, is mainly provided with gear-box and electromotor in cabin, and impeller is connected with gear-box by main shaft;In nature, size and the direction of wind-force change unpredictably, and in order to ensure the efficient and steady of power generation process, gear-box will pass to electromotor and then drive electrical generators generating after the rotating speed increase of impeller.
At present, on wind-driven generator, gear-box is provided with epicyclic train, and this epicyclic train can adopt NW type planet circular system structure;NW type planet circular system includes the small planetary gear and the mafor planet gear that are coaxially disposed;In the gear-box of wind-driven generator, (each mafor planet gear is to having a rotating shaft and a small planetary gear for four mafor planet gears, by rotating shaft transmission between small planetary gear and mafor planet gear) it is evenly arranged around sun gear, four mafor planet gears transmit moment of torsion to sun gear simultaneously;Owing to manufacturing and rigging error, the problems such as load inequality, unbalance loading easily occur between four mafor planet gears, cause that gear-box reduces service life.
Summary of the invention
In view of this, it is contemplated that propose a kind of torsion shaft device, to promote the service life of gear-box.On this basis, the present invention also proposes a kind of gear-box and wind-driven generator.
As first aspect, the present invention proposes a kind of torsion shaft device, specifically include the first supporting seat, the first gear, the second gear, hollow axle and torsional axis, described hollow axle is rotatably arranged on described first supporting seat, and the first end of described hollow axle and the second end are positioned at the both sides of the first supporting seat respectively;Described first gear is fixedly installed on the first end of hollow axle, and described second geared sleeve is located at the second end of hollow axle;Described hollow axle is provided with center cavity, first end of described torsional axis extends to the first end of hollow axle by center cavity, and the first end of described torsional axis is circumferentially fixed with the first end of hollow axle, the connection fixing with the end face of the second gear of the second end of described torsional axis.
Preferably, the second end of described torsional axis being provided with adapter sleeve, the end face of described adapter sleeve and the second gear is fixed.
Preferably, described first gear and hollow axle become one.
Preferably, described hollow axle is rotatably arranged on the first supporting seat by bearing.
Preferably, the first end of described torsional axis is connected by spline with the first end of hollow axle.
Preferably, it is connected by expansion sleeve is fixing between described adapter sleeve and torsional axis.
Preferably, described torsion shaft device also includes the second supporting seat and connects axle, and one end of described connection axle and the second supporting seat are rotatably connected, and the other end of described connection axle inserts described center cavity and fixes with hollow axle.
As second aspect, the present invention proposes a kind of gear-box, specifically includes the torsion shaft device of above-mentioned any one.
As the third aspect, the present invention proposes a kind of wind-driven generator, specifically includes tower, impeller and cabin, and described cabin is positioned at the top of tower, is provided with electromotor and above-mentioned gear-box in described cabin.
The torsion shaft device that the present invention proposes includes the first supporting seat, the first gear, the second gear, hollow axle and torsional axis, and hollow axle is rotatably arranged on the first supporting seat, and the first end of hollow axle and the second end are positioned at the both sides of the first supporting seat respectively;First gear is fixedly installed on the first end of hollow axle, and the second geared sleeve is located at the second end of hollow axle;Being provided with center cavity on hollow axle, the first end of torsional axis extends to the first end of hollow axle by center cavity, and the first end of torsional axis is circumferentially fixed with the first end of hollow axle, and the second end of torsional axis and the end face of the second gear are fixed and connected.In the course of the work, gravity, radial force and the moment of flexure that hollow bearing is applied by the first gear, the second gear, transmit moment of torsion by torsional axis between the first gear and the second gear, namely the first gear relies primarily on torsional axis and drives the second gear rotation.
Compared with prior art, mainly transmitting moment of torsion due to torsional axis, be not subjected to gravity, radial force and moment of flexure, its diameter can reduce, and then makes the torsional deformability of torsional axis bigger;Gear-box for wind-driven generator, when four the second gears are arranged around sun gear, even if there is certain foozle, owing to torsional axis torsional flexibility is good, the torsional deflection of greater angle can be carried out, can greatly reducing installation difficulty on the one hand, on the other hand after installation, torsional axis compensates the load of also balanced four the second gears automatically by torsional deflection.Therefore, by adopting above-mentioned torsion shaft device can facilitate the manufacture of gear-box, extend the service life of gear-box simultaneously, finally, advantageously reduce manufacture difficulty and the fault rate of wind-driven generator.
Accompanying drawing explanation
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
The structural representation of the torsion shaft device that Fig. 1 provides for the specific embodiment of the invention.
Description of reference numerals:
1 first supporting seat 2 first gear 3 second gear 4 hollow axle
5 torsional axis 6 adapter sleeve 7 expansion sleeve 8 second supporting seats 9 connect axle
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the present invention and the feature in embodiment can be mutually combined.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
The specific embodiment of the invention proposes a kind of wind-driven generator, specifically including tower, impeller and cabin, cabin is positioned at the top of tower, is provided with electromotor and gear-box in cabin, impeller is connected with the power shaft of gear-box by main shaft, and the output shaft of gear-box is connected with the rotating shaft of electromotor;During work, impeller obtains wind-force and then the pinion rotation in driven gear case, and the rotating speed that impeller is transmitted by gear-box exports to electromotor after carrying out speedup, and final drive electrical generators generates electricity.
Gear-box includes power shaft, output shaft, housing, ring gear, sun gear and four torsion shaft devices;As shown in Figure 1, torsion shaft device includes first supporting seat the 1, second supporting seat the 8, first gear the 2, second gear 3, hollow axle 4, torsional axis 5 and connects axle 9, hollow axle 4 is rotatably arranged on the first supporting seat 1 by bearing, and the first end of hollow axle 4 and the second end are positioned at the both sides of the first supporting seat 1 respectively;First gear 2 is fixedly installed on the first end of hollow axle 4, and the second gear 3 is set in the second end of hollow axle 4;Hollow axle 4 is provided with center cavity, first end of torsional axis 5 extends to the first end of hollow axle 4 by center cavity, and the first end of torsional axis 5 is circumferentially fixed with the first end of hollow axle 4, the second end of torsional axis 5 and the end face of the second gear 3 are fixed and are connected;Bearings is passed through on the second supporting seat 8 in the one end connecting axle 9, and the other end connecting axle 9 inserts center cavity and fixes with hollow axle 4.
On gear-box, ring gear is rotatably arranged in enclosure interior and is connected with power shaft, first supporting seat 1 and the second supporting seat 8 are fixed in housing, first gear 2 engages with ring gear, second gear 3 engages with sun gear, and four the second gears 3 are evenly arranged around sun gear, sun gear is connected with output shaft.
During work, impeller drives ring gear to rotate, and ring gear orders about the first gear 2 and rotates, and rotating speed is passed to the second gear 3 by torsional axis 5 by the first gear 2, and the second gear 3 drives sun gear to rotate, and then orders about generator operation.
In the course of the work, hollow axle 4 bears the first gear 2 and the gravity of the second gear 3, radial force and moment of flexure, and torsional axis 5 mainly transmits moment of torsion, and therefore, the diameter of torsional axis 5 can be set to less, and then makes the torsional deformability of torsional axis 5 bigger;Four the second gears 3 around sun gear arrange time, even if there is certain foozle, owing to torsional axis 5 torsional flexibility is good, the torsional deflection of greater angle can be carried out, can greatly reduce installation difficulty on the one hand, on the other hand after installation, torsional axis 5 compensates the load of also balanced four the second gears 3 automatically by torsional deflection..
As shown in Figure 1, in the present embodiment, first gear 2 and hollow axle 4 become one, when the diameter of the first gear 2 is less, by the first gear 2 and hollow axle 4 are arranged to integrated morphology, both can ensure that the intensity of the first gear 2, can ensure that again the bonding strength of the first gear 2 and hollow axle 4, it is also possible to convenient manufacture.Certainly, in other embodiments, the first gear 2 and hollow axle 4 can adopt Split type structure, and now the first gear 2 and hollow axle 4 can be connected by key.
In a preferred embodiment, torsional axis 5 is connected with hollow axle 4 by spline, and being connected by spline on the one hand can be convenient for assembly, can also ensure torsional axis 5 and the bonding strength of hollow axle 4 on the other hand.
In a preferred embodiment, the second end of torsional axis 5 being provided with adapter sleeve 6 and expansion sleeve 7, the end face of adapter sleeve 6 and the second gear 3 is bolted, and adapter sleeve 6 is connected by expansion sleeve 7 is fixing with the second end of torsional axis 5.By adopting adapter sleeve 6 and expansion sleeve 7, it is ensured that the moment of torsion of torsional axis 5 is transferred to the second gear 3, and the intensity preventing torsional axis 5 will not be weakened simultaneously.
In the above-described embodiments, bearing on first supporting seat 1 can be cylinder roller bearing, and the bearing on the second supporting seat 8 can be self-aligning roller bearing, by this collocation, good support can be provided for hollow axle 4, the axial float of hollow axle 4 can be suppressed simultaneously.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.

Claims (9)

1. a torsion shaft device, it is characterized in that, including the first supporting seat (1), the first gear (2), the second gear (3), hollow axle (4) and torsional axis (5), described hollow axle (4) is rotatably arranged on described first supporting seat (1), and the first end of described hollow axle (4) and the second end are positioned at the both sides of the first supporting seat (1) respectively;Described first gear (2) is fixedly installed on the first end of hollow axle (4), and described second gear (3) is set in the second end of hollow axle (4);Described hollow axle is provided with center cavity on (4), first end of described torsional axis (5) extends to the first end of hollow axle (4) by center cavity, and the first end of described torsional axis (5) is circumferentially fixed with the first end of hollow axle (4), the connection fixing with the end face of the second gear (3) of the second end of described torsional axis (5).
2. torsion shaft device according to claim 1, it is characterised in that the end face being provided with adapter sleeve (6), described adapter sleeve (6) and the second gear (3) on the second end of described torsional axis (5) is fixed.
3. torsion shaft device according to claim 1, it is characterised in that described first gear (2) and hollow axle (4) become one.
4. torsion shaft device according to claim 1, it is characterised in that described hollow axle (4) is rotatably arranged on the first supporting seat (1) by bearing.
5. torsion shaft device according to claim 1, it is characterised in that the first end of described torsional axis (5) is connected by spline with the first end of hollow axle (4).
6. torsion shaft device according to claim 2, it is characterised in that be connected by expansion sleeve (7) is fixing between described adapter sleeve (6) with torsional axis (5).
7. the torsion shaft device according to claim 1 to 6 any one, it is characterized in that, also include the second supporting seat (8) and connect axle (9), one end of described connection axle (9) and the second supporting seat (8) are rotatably connected, and the other end of described connection axle (9) inserts described center cavity and fixes with hollow axle (4).
8. a gear-box, it is characterised in that include the torsion shaft device described in claim 1 to 7 any one.
9. a wind-driven generator, it is characterised in that include tower, impeller and cabin, described cabin is positioned at the top of tower, is provided with the gear-box described in electromotor and claim 8 in described cabin.
CN201610243359.0A 2016-04-18 2016-04-18 Torsion shaft device, gear-box and wind-driven generator Active CN105782409B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610243359.0A CN105782409B (en) 2016-04-18 2016-04-18 Torsion shaft device, gear-box and wind-driven generator

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Application Number Priority Date Filing Date Title
CN201610243359.0A CN105782409B (en) 2016-04-18 2016-04-18 Torsion shaft device, gear-box and wind-driven generator

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CN105782409A true CN105782409A (en) 2016-07-20
CN105782409B CN105782409B (en) 2019-08-16

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1888471A (en) * 2006-07-21 2007-01-03 东方汽轮机厂 Gearbox for wind generator
CN2893310Y (en) * 2006-01-16 2007-04-25 南京高速齿轮制造有限公司 Wind power generator booster gear box
CN201348010Y (en) * 2009-01-05 2009-11-18 杭州前进风电齿轮箱有限公司 Increasing gear box for half-direct-driven wind generation
CN201367986Y (en) * 2009-02-13 2009-12-23 南京高速齿轮制造有限公司 Acceleration gearbox for wind-driven generator
CN201554608U (en) * 2009-12-04 2010-08-18 太原重工股份有限公司 Speed increasing gear box of wind-driven generator
CN202659857U (en) * 2012-07-25 2013-01-09 大唐山东清洁能源开发有限公司 Gear box of wind generating set
CN105089921A (en) * 2015-06-23 2015-11-25 王正清 Straight hit type wind power generation equipment unit adopting air collecting machines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2893310Y (en) * 2006-01-16 2007-04-25 南京高速齿轮制造有限公司 Wind power generator booster gear box
CN1888471A (en) * 2006-07-21 2007-01-03 东方汽轮机厂 Gearbox for wind generator
CN201348010Y (en) * 2009-01-05 2009-11-18 杭州前进风电齿轮箱有限公司 Increasing gear box for half-direct-driven wind generation
CN201367986Y (en) * 2009-02-13 2009-12-23 南京高速齿轮制造有限公司 Acceleration gearbox for wind-driven generator
CN201554608U (en) * 2009-12-04 2010-08-18 太原重工股份有限公司 Speed increasing gear box of wind-driven generator
CN202659857U (en) * 2012-07-25 2013-01-09 大唐山东清洁能源开发有限公司 Gear box of wind generating set
CN105089921A (en) * 2015-06-23 2015-11-25 王正清 Straight hit type wind power generation equipment unit adopting air collecting machines

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Address after: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District

Patentee after: Sany Heavy Energy Co., Ltd

Address before: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District

Patentee before: SANY HEAVY ENERGY Co.,Ltd.

Address after: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District

Patentee after: SANY HEAVY ENERGY Co.,Ltd.

Address before: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District

Patentee before: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd.