CN110556988B - Dual-rotor generator - Google Patents

Dual-rotor generator Download PDF

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Publication number
CN110556988B
CN110556988B CN201911007264.9A CN201911007264A CN110556988B CN 110556988 B CN110556988 B CN 110556988B CN 201911007264 A CN201911007264 A CN 201911007264A CN 110556988 B CN110556988 B CN 110556988B
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CN
China
Prior art keywords
end cover
rotor
shell
winding
double
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Active
Application number
CN201911007264.9A
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Chinese (zh)
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CN110556988A (en
Inventor
刘洪德
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.)
Qingdao Houde New Energy Technology Development Co ltd
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Qingdao Houde New Energy Technology Development Co ltd
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Priority to CN201911007264.9A priority Critical patent/CN110556988B/en
Publication of CN110556988A publication Critical patent/CN110556988A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2706Inner rotors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K13/00Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/02Connections between slip-rings and windings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K16/00Machines with more than one rotor or stator
    • H02K16/005Machines with only rotors, e.g. counter-rotating rotors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/14Means for supporting or protecting brushes or brush holders
    • H02K5/141Means for supporting or protecting brushes or brush holders for cooperation with slip-rings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1737Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention belongs to the technical field of power generation equipment, and particularly relates to a double-rotor generator, wherein the main structure of the double-rotor generator comprises a permanent magnet rotor, a permanent magnet rotor shaft, a permanent magnet rotor bearing, a double-layer bearing, a permanent magnet rotor shaft flange, a winding rotor end cover shaft, a winding rotor shell, a shell end cover bearing, a collecting ring, a carbon brush holder, a carbon brush, a shell end cover, a double-layer bearing shell end cover, a winding rotor shaft flange, a base, a hanging ring, a shell and a fixing bolt; the double-rotor generator winding and the magnet designed by the invention are used as rotors to rotate in opposite directions, so that the efficiency of the generator under low-rotation-speed input is improved, and the problems of high processing and mounting difficulty of coaxial double bearings in the existing design are overcome.

Description

Dual-rotor generator
Technical field:
The invention belongs to the technical field of power generation equipment, and particularly relates to a double-rotor generator which improves power generation efficiency by utilizing reverse rotation of a winding and a magnet double rotor.
The background technology is as follows:
The power generation principle of the generator is that the conductor coil is driven to rotate in the magnetic field by utilizing the action of external mechanical force, and the magnetic induction wire is continuously cut to generate induced electromotive force and output power. The conventional power generation equipment is generally fixed by a stator, and a rotor rotates relative to the stator, so that the power generation efficiency is low when the rotating speed is low, and in order to improve the power generation efficiency of the generator, a double-rotor generator is developed. The windings of the double-rotor generator and the magnet windings simultaneously rotate in opposite directions, so that the power generation efficiency is improved. In the prior art, the utility model patent with the application number 201820894067.8 discloses wind power generation equipment, which comprises a pole tower, a double-rotor generator and blades, wherein the top end of the pole tower is fixedly connected with the double-rotor generator, and two rotating shafts of the double-rotor generator are fixedly connected with two symmetrical blades. According to the utility model, by adopting the double-rotor generator, the double rotors rotate in opposite directions, the relative speed is increased by 1 time compared with that of the stator and the rotor, the energy is greatly increased, the larger the converted electric energy is, the relative rotating speed of the double rotors is large, the wind energy can be effectively utilized at low wind speed, the energy utilization rate is higher, the problem that the power generation cannot be realized at low speed is effectively solved, the rotating speed of the two blades is faster, and the electric energy is further converted. The utility model patent with the application number 200620167795.6 discloses a double-rotor generator, wherein a shell (1) supports and protects a machine body and fixes the machine body, and is connected with a secondary rotor (2) through a bearing (8). The auxiliary rotor (2) is composed of coils (12), is connected with the auxiliary power wheel (4) through the auxiliary power shaft (6), and moves reversely with the main rotor (3) under the action of external force. The main rotor (3) is composed of magnets (11), is connected with a main power wheel (10) through a main power shaft (9), and forms reverse motion with the auxiliary rotor (2) under the action of external force. The main rotor (3) is connected with the auxiliary rotor (2) through a bearing (8). The output wire (7) is connected with the coil (12) and the brush (5) to output current. The utility model patent with the application number of 91207521.X discloses a double-rotor generator, wherein an exciting rotor and an armature of the generator are assembled on a driving shaft, a similar structure and winding form to those of a stator and an armature of a conventional three-phase alternating current generator are adopted, a driving wheel is arranged on the exciting rotor and used for transmitting reaction moment between the exciting rotor and the armature, and the double-rotor generator is particularly suitable for electromechanical integrated devices such as a diesel engine, a double-rotor generator, a conventional generator and the like, and has the remarkable characteristics of simple structure, easiness in implementation, convenience in adjustment, improvement of efficiency and the like. The above-mentioned patent is the birotor generator, rotates along opposite direction between the birotor and improves generating efficiency, but all has coaxial birotor's design in its structure, and is very high to the axiality error requirement of bearing, and processing and installation are all more difficult, all have certain influence to operation safety and maintenance, in prior art, do not find to have rational in infrastructure, processing and simple to operate's birotor generator.
The invention comprises the following steps:
the invention aims to overcome the defects of the prior art, and aims to solve the defects that the structure of a double-rotor generator is unreasonable, the coaxial double-bearing design is easy to cause shaft breakage accidents and the difficulty of processing, mounting and subsequent maintenance is high, and the double-rotor generator is sought to be designed under the conditions of mass production and manufacturing, reasonable structure and low cost.
In order to achieve the above purpose, the main body structure of the dual-rotor generator comprises a permanent magnet rotor, a permanent magnet rotor shaft, a permanent magnet rotor bearing, a double-layer bearing, a permanent magnet rotor shaft flange, windings, a winding rotor end cover shaft, a winding rotor shell, a shell end cover bearing, a collecting ring, a carbon brush holder, a carbon brush, a shell end cover, a double-layer bearing shell end cover, a winding rotor shaft flange, a base, a hanging ring, a shell and a fixing bolt; the shell is fixedly connected with the shell end cover and the double-layer bearing shell end cover through bolts respectively, the hanging ring is integrally and fixedly arranged in the center above the shell for hanging, and the base is arranged below the shell; the winding rotor shell is fixedly connected with a winding rotor end cover and a winding rotor end cover shaft through bolts in the shell; one end of the permanent magnet rotor shaft enters the winding rotor end cover and the inside of the winding rotor shell, is in shaft rotation connection with the winding rotor end cover through a permanent magnet rotor bearing, and the other end of the permanent magnet rotor shaft is fixedly connected with a permanent magnet rotor shaft flange outside the double-layer bearing shell end cover; the winding is fixedly arranged in the winding rotor shell, and the position of the winding is opposite to that of the permanent magnet rotor; one end of the winding rotor end cover shaft is in a shaft shape, is connected with the shell end cover in a rotating way through a shell end cover bearing and extends out of the shell end cover, the winding rotor shaft flange is fixedly arranged at the shaft-shaped tail end of the winding rotor end cover shaft, and the other end of the winding rotor end cover shaft is in an end cover shape and fixedly connected with the winding rotor shell; the permanent magnet rotor shaft, the winding rotor end cover and the double-layer bearing shell end cover are rotationally connected through double-layer bearings.
The double-layer bearing comprises an outer ring, an inner ring, a flange middle sleeve, balls, threaded holes and rabbets, wherein a group of balls are arranged between the outer ring and the flange middle sleeve, and a group of balls are arranged between the flange middle sleeve and the inner ring, so that the outer ring, the inner ring and the flange middle sleeve can relatively rotate; the outer side of the flange middle sleeve is provided with a circle of spigot for positioning during installation; threaded holes are uniformly formed in the flange middle sleeve around the axle center; the inner ring of the double-layer bearing is fixedly connected with the permanent magnet rotor shaft, the outer ring of the double-layer bearing is fixedly connected with the shell end cover of the double-layer bearing, the winding rotor end cover is fixedly connected with the middle sleeve of the flange through the threaded hole by the fixing bolt, and the spigot corresponds to the protruding structure on the winding rotor end cover and is used for positioning and ensuring the coaxiality of the double-layer bearing and the winding rotor end cover; the double-layer bearing can enable the permanent magnet rotor shaft, the winding rotor end cover and the double-layer bearing shell end cover to be capable of rotating relatively.
The collecting ring is sleeved at the shaft-shaped part of the winding rotor end cover shaft, and is electrically connected with the winding; the carbon brush frame is fixedly arranged in the shell end cover, the carbon brush is fixed on the carbon brush frame, contacts with the collecting ring and is tightly pressed through the spring, and electric energy generated by the winding is transmitted.
Compared with the prior art, the designed dual-rotor generator has reasonable structure and reliable principle, the windings and the magnets of the generator are used as the rotors to rotate in opposite directions, the efficiency of the generator under low-rotation-speed input is improved, the problems of high processing and mounting difficulty of coaxial dual-bearings in the existing design are overcome, the manufacturing and mounting are easy, and the application environment is friendly.
Description of the drawings:
fig. 1 is a schematic diagram of the main structure of a dual-rotor generator according to the present invention.
Fig. 2 is a schematic structural diagram of a double-layer bearing according to the present invention.
The specific embodiment is as follows:
The invention is further illustrated by the following examples in conjunction with the accompanying drawings.
Examples:
The main structure of the double-rotor generator related to the embodiment comprises a permanent magnet rotor 1, a permanent magnet rotor shaft 2, a permanent magnet rotor bearing 3, a double-layer bearing 4, a permanent magnet rotor shaft flange 5, a winding 6, a winding rotor end cover 7, a winding rotor end cover shaft 8, a winding rotor housing 9, a housing end cover bearing 10, a collecting ring 11, a carbon brush holder 12, a carbon brush 13, a housing end cover 14, a double-layer bearing housing end cover 15, a winding rotor shaft flange 16, a base 17, a lifting ring 18, a housing 19 and a fixing bolt 20; the shell 19 is fixedly connected with the shell end cover 14 and the double-layer bearing shell end cover 15 through bolts respectively, the hanging ring 18 is integrally and fixedly arranged in the center above the shell 19 and used for hanging, and the base 17 is arranged below the shell 19; inside the housing 19, the winding rotor housing 9 is fixedly connected with the winding rotor end cover 7 and the winding rotor end cover shaft 8 through bolts; one end of the permanent magnet rotor shaft 2 enters the winding rotor end cover 7 and the winding rotor shell 9 and is rotationally connected with the winding rotor end cover shaft 8 through the permanent magnet rotor bearing 3, the other end of the permanent magnet rotor shaft 2 is fixedly connected with the permanent magnet rotor shaft flange 5 outside the double-layer bearing shell end cover 15, and the permanent magnet rotor 1 is fixedly arranged in the middle of the permanent magnet rotor shaft 2 in the winding rotor shell 9; the winding 6 is fixedly arranged inside the winding rotor housing 9 at a position opposite to the permanent magnet rotor 1.
The double-layer bearing 4 consists of an outer ring 21, an inner ring 22, a flange middle sleeve 23, balls 24, threaded holes 25 and rabbets 26, wherein a group of balls 24 are arranged between the outer ring 21 and the flange middle sleeve 23, and a group of balls 24 are arranged between the flange middle sleeve 23 and the inner ring 22, so that the outer ring 21, the inner ring 22 and the flange middle sleeve 23 can rotate relatively; a circle of spigot 26 is arranged on the outer side of the flange middle sleeve 23 and used for positioning during installation; a plurality of threaded holes 25 are uniformly formed on the flange middle sleeve 23 around the axis; an inner ring 22 of the double-layer bearing 4 is fixedly connected with the permanent magnet rotor shaft 2, an outer ring 21 is fixedly connected with a double-layer bearing shell end cover 15, a fixing bolt 20 passes through a threaded hole 25 to fixedly connect the winding rotor end cover 7 with a flange middle sleeve 23, and a spigot 26 corresponds to a protruding structure on the winding rotor end cover 7 and is used for positioning and ensuring the coaxiality of the double-layer bearing 4 and the winding rotor end cover 7; the double-layer bearing 4 can enable the permanent magnet rotor shaft 2, the winding rotor end cover 7 and the double-layer bearing shell end cover 15 to perform relative rotation motion.
One end of the winding rotor end cover shaft 8 is in a shaft shape, is rotatably connected with the shell end cover 14 through the shell end cover bearing 10 and extends out of the shell end cover 14, the winding rotor shaft flange 16 is fixedly arranged at the shaft-shaped tail end of the winding rotor end cover shaft 8, and the other end of the winding rotor end cover shaft 8 is in an end cover shape and fixedly connected with the winding rotor shell 9; the collecting ring 11 is sleeved on the shaft-shaped part of the winding rotor end cover shaft 8, and the collecting ring 11 is electrically connected with the winding 6; the carbon brush holder 12 is fixedly arranged in the shell end cover 14, the carbon brush 13 is fixed on the carbon brush holder 12, is contacted with the collecting ring 11 and is pressed by a spring, and the electric energy generated by the winding 6 is transmitted.
The specific working process for generating electricity in this embodiment is as follows: the winding rotor shaft flange 16 and the permanent magnet rotor shaft flange 5 are respectively connected to external power sources, the power sources are an internal combustion engine, a steam turbine, a water conservancy blade machine, a wind blade, a cooling tower convection fan blade, a pipeline fluid pump blade machine, a surge blade machine and the like, and the two groups of power sources rotate in opposite directions, namely, the permanent magnet rotor shaft flange 5, the permanent magnet rotor shaft 2 and the permanent magnet rotor 1 are driven to rotate positively, the winding rotor shaft flange 16, the winding rotor end cover 7, the winding rotor end cover shaft 8, the winding rotor shell 9 and the winding 6 are driven to rotate reversely, and the winding 6 and the permanent magnet rotor 1 rotate reversely to generate electric energy, and are transmitted to the outside of the generator through a collecting ring and a carbon brush.

Claims (2)

1. A dual rotor generator, characterized by: the main structure comprises a permanent magnet rotor, a permanent magnet rotor shaft, a permanent magnet rotor bearing, a double-layer bearing, a permanent magnet rotor shaft flange, a winding rotor end cover shaft, a winding rotor shell, a shell end cover bearing, a collecting ring, a carbon brush holder, a carbon brush, a shell end cover, a double-layer bearing shell end cover, a winding rotor shaft flange, a base, a hanging ring, a shell and a fixing bolt; the shell is fixedly connected with the shell end cover and the double-layer bearing shell end cover through bolts respectively, the hanging ring is integrally and fixedly arranged in the center above the shell for hanging, and the base is arranged below the shell; the winding rotor shell is fixedly connected with a winding rotor end cover and a winding rotor end cover shaft through bolts in the shell; one end of the permanent magnet rotor shaft enters the winding rotor end cover and the inside of the winding rotor shell, is in shaft rotation connection with the winding rotor end cover through a permanent magnet rotor bearing, and the other end of the permanent magnet rotor shaft is fixedly connected with a permanent magnet rotor shaft flange outside the double-layer bearing shell end cover; the winding is fixedly arranged in the winding rotor shell, and the position of the winding is opposite to that of the permanent magnet rotor; one end of the winding rotor end cover shaft is in a shaft shape, is connected with the shell end cover in a rotating way through a shell end cover bearing and extends out of the shell end cover, the winding rotor shaft flange is fixedly arranged at the shaft-shaped tail end of the winding rotor end cover shaft, and the other end of the winding rotor end cover shaft is in an end cover shape and fixedly connected with the winding rotor shell; the permanent magnet rotor shaft, the winding rotor end cover and the double-layer bearing shell end cover are rotationally connected through a double-layer bearing;
The double-layer bearing consists of an outer ring, an inner ring, a flange middle sleeve, balls, threaded holes and rabbets, wherein a group of balls are arranged between the outer ring and the flange middle sleeve, and a group of balls are arranged between the flange middle sleeve and the inner ring, so that the outer ring, the inner ring and the flange middle sleeve can rotate relatively; the outer side of the flange middle sleeve is provided with a circle of spigot for positioning during installation; threaded holes are uniformly formed in the flange middle sleeve around the axle center; the inner ring of the double-layer bearing is fixedly connected with the permanent magnet rotor shaft, the outer ring of the double-layer bearing is fixedly connected with the shell end cover of the double-layer bearing, the winding rotor end cover is fixedly connected with the middle sleeve of the flange through the threaded hole by the fixing bolt, and the spigot corresponds to the protruding structure on the winding rotor end cover and is used for positioning and ensuring the coaxiality of the double-layer bearing and the winding rotor end cover; the double-layer bearing can enable the permanent magnet rotor shaft, the winding rotor end cover and the double-layer bearing shell end cover to be capable of rotating relatively.
2. The dual rotor generator as claimed in claim 1, wherein: the collecting ring is sleeved at the shaft-shaped part of the winding rotor end cover shaft and is electrically connected with the winding; the carbon brush frame is fixedly arranged in the shell end cover, the carbon brush is fixed on the carbon brush frame, contacts with the collecting ring and is tightly pressed through the spring, and electric energy generated by the winding is transmitted.
CN201911007264.9A 2019-10-22 2019-10-22 Dual-rotor generator Active CN110556988B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911007264.9A CN110556988B (en) 2019-10-22 2019-10-22 Dual-rotor generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911007264.9A CN110556988B (en) 2019-10-22 2019-10-22 Dual-rotor generator

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CN110556988A CN110556988A (en) 2019-12-10
CN110556988B true CN110556988B (en) 2024-09-13

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201054535Y (en) * 2006-12-07 2008-04-30 申祖腾 Dual rotator generator
CN101705917A (en) * 2009-12-13 2010-05-12 华南理工大学 Permanent-magnetic wind driven generator
CN106988965A (en) * 2017-05-27 2017-07-28 侯晓宇 Double wind wheel Double-rotor wind-driven generator
CN210405048U (en) * 2019-10-22 2020-04-24 青岛厚德新能源科技开发有限公司 Double-rotor generator

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Publication number Priority date Publication date Assignee Title
CN1490532A (en) * 2002-10-18 2004-04-21 军 李 Secondary bearing with electromagnetic speed regulation in interelectrode
JP2007282465A (en) * 2006-04-10 2007-10-25 Yoshiji Kondo Three-dimensional, multiple, multistage, and multiplex motor and bearing
CN101615831B (en) * 2009-08-04 2012-05-16 乔飞阳 Stator reverse double-rotor generator
CN101873041A (en) * 2010-07-19 2010-10-27 邓传义 Coaxial double-rotor permanent magnet direct current motor
CN102005858B (en) * 2010-11-21 2012-07-04 沈阳工业大学 Brushless dual-blade heterodromously-driven permanent-magnet wind generator
CN105864290B (en) * 2015-01-21 2019-02-19 雷虹桥 A kind of double-layer nested bearing of high speed of electromagnetism rate controlling
CN206889173U (en) * 2017-05-27 2018-01-16 侯晓宇 Double wind wheel Double-rotor wind-driven generator
CN107654492A (en) * 2017-06-23 2018-02-02 浙江双飞无油轴承股份有限公司 Multi-layer multi-row rolling bearing
CN208441963U (en) * 2018-06-11 2019-01-29 贵州电网有限责任公司 A kind of wind power plant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201054535Y (en) * 2006-12-07 2008-04-30 申祖腾 Dual rotator generator
CN101705917A (en) * 2009-12-13 2010-05-12 华南理工大学 Permanent-magnetic wind driven generator
CN106988965A (en) * 2017-05-27 2017-07-28 侯晓宇 Double wind wheel Double-rotor wind-driven generator
CN210405048U (en) * 2019-10-22 2020-04-24 青岛厚德新能源科技开发有限公司 Double-rotor generator

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