CN205453386U - No key connecting device of inner rotor permanent -magnet direct -drive wind power plant rotor and rotor shaft - Google Patents
No key connecting device of inner rotor permanent -magnet direct -drive wind power plant rotor and rotor shaft Download PDFInfo
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- CN205453386U CN205453386U CN201520982348.5U CN201520982348U CN205453386U CN 205453386 U CN205453386 U CN 205453386U CN 201520982348 U CN201520982348 U CN 201520982348U CN 205453386 U CN205453386 U CN 205453386U
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- 230000003313 weakening effect Effects 0.000 description 2
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Abstract
A no key connecting device of inner rotor permanent -magnet direct -drive wind power plant rotor and rotor shaft is disclosed, including two expanding sleeve (5) and the two tight rings (9) that rise, the centre bore of expanding sleeve (5) be the taper hole, and two to rise by the fit ons that tightly encircle (9) are conical surfaces, the taper hole of expanding sleeve (5) with the tight conical surface that encircles (9) that rises cooperatees, two rise by tight ring (9) overlaps about rotor radials (7) symmetrically and establishes on rotor radials (7) and the axial flanges tip both sides that rotor shaft (6) cup jointed, two expanding sleeve (5) are overlapped to establish about rotor radials (7) symmetrically and are risen on the tight ring (9) two, be equipped with the through -hole of the tight threaded holes and circumference distribution of rising of circumference distribution on two expanding sleeve (5) respectively, and it corresponds to go up the through -hole of reserving with rotor radials (7), rise tight bolt (8) pass the screw hole on another expanding sleeve of through -hole screw in on rotor radials (7) and screw up from the through -hole on expanding sleeve. Two broadside on call that expanding sleeve connects the no key -type connection of having realized rotor and rotor shaft, and the intensity of rotor shaft has been guaranteed to the at utmost to avoided the single lateral stress of radial tensioning force to concentrate the problem.
Description
Technical field
This utility model relates to internal rotor permanent-magnetic direct wind-driven generator, belongs to technical field of wind power generating equipment, particularly relate to this generator amature and armature spindle without bonded device.
Background technology
Along with the progress of human social economy's technology, the development of clean energy resource, in the ascendant, as the fresh combatants of clean energy resource, wind energy development, receive much concern always.And the wind driven generator technology needed for the important step Wind turbines of wind energy development, also achieve significant progress.
Wind turbines is typically mounted at the field of bad environments, require its safe and reliable operation at least 20 years, within the phase in service life of at least 20 years, unit (abbreviation of Wind turbines) allows for standing various extreme climate and the test of wind load complicated and changeable, such as summer high temperature, winter low temperature, extreme wind speeds load and reversed fatigue load effect.The operating condition that Wind turbines is complicated, proposes high requirement to the reliability of wind-driven generator, and permanent magnet direct-driving aerogenerator can meet the operating condition requirement that Wind turbines is harsh well.
But, big owing to there is radial dimension, the feature that axial dimension is little, the attachment structure design between permanent magnet direct-driving aerogenerator rotor and armature spindle, great to generator operation reliability effect.
At present, the type of attachment between internal rotor permanent-magnetic direct wind-driven generator rotor and armature spindle, common are the forms such as bearing pin connection, spline connection and unilateral expansion sleeve connection.Bearing pin connects and spline connects needs and offers pin shaft hole and spline on armature spindle, weakens the intensity of armature spindle to a certain extent；Unilateral expansion sleeve connects the problem being easily caused rotor hub radially expanding force one side stress concentration.There is adverse effect to the reliability connected in these above-mentioned connected modes in rotor longtime running, and then can affect the reliability of whole wind-driven generator.
Summary of the invention
The purpose of this utility model is to be bonded by the nothing realizing rotor and armature spindle to fetch the connection reliability improved between internal rotor permanent-magnetic direct wind-driven generator rotor and armature spindle.
The technical solution of the utility model is: a kind of internal rotor permanent-magnetic direct wind-driven generator rotor and armature spindle without bonded device, including two expansion sleeves and two tension rings, the centre bore of expansion sleeve is taper hole, the fit on face of two tension rings is the conical surface, the taper hole of described expansion sleeve matches with the conical surface of described tension ring, two tension rings are set in the axial ledge with the both sides, end of armature spindle socket of rotor disc symmetrically about rotor disc, two expansion sleeves are set on two tension rings symmetrically about rotor disc, tensioner screwed hole and the through hole of circle distribution of circle distribution it is respectively equipped with on two expansion sleeves, and it is corresponding with through hole reserved on rotor disc, tension bolt through hole from an expansion sleeve screws in the screwed hole on another expansion sleeve through the through hole on rotor disc and tightens.Along with progressively tightening of tension bolt, two expansion sleeves gradually move to rotor disc, thus synchronize to load to both sides tension ring by cone match, symmetrical tensioner, axially loaded tension bolt is converted into tension ring radially expanding force, thus realizes a rotor with armature spindle without bonded one.
Technique scheme provides the benefit that, use Bilateral Symmetry expansion sleeve connected mode, avoid during bearing pin connects and offer the pin shaft hole weakening to armature spindle, eliminate during spline connects and offer the spline weakening to armature spindle, it also avoid unilateral expansion sleeve and connect the rotor hub caused radially expanding force one side problem of stress concentration.Bilateral Symmetry expansion sleeve connect achieve rotor and armature spindle without bonded, at utmost ensure that the intensity of armature spindle, and avoid radial direction expanding force one side problem of stress concentration.
Accompanying drawing explanation
Fig. 1 is internal rotor permanent-magnetic direct wind-driven generator rotor according to embodiment of the present utility model with armature spindle without the schematic diagram of bonded device；
Fig. 2 is the internal rotor permanent-magnetic direct wind-driven generator rotor shown in Fig. 1 with armature spindle without the partial enlarged drawing of bonded device；
Fig. 3 is the right view of Fig. 2.
The implication of the reference in Fig. 1, Fig. 2 and Fig. 3 is: 1, drive end bearing bracket；2, stator；3, rotor；4, rear end cap；5, expansion sleeve；6, armature spindle；7, rotor disc；8, tension bolt；9, tension ring.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiment of the present utility model is described in further detail.
nullSuch as Fig. 1，Shown in Fig. 2，Drive end bearing bracket 1、Stator 2、Rotor 3、Rear end cap 4、Armature spindle 6 collectively constitutes internal rotor permanent-magnetic direct wind-driven generator，Rotor disc is provided with the flange axially projecting from disc both sides with the end of armature spindle firm contact，The rotor 3 of this electromotor includes without bonded device with armature spindle 6: two expansion sleeve 5 and two tension rings 9，The centre bore of expansion sleeve 5 is taper hole，The fit on face of two tension rings 9 is the conical surface，The taper hole of described expansion sleeve 5 matches with the conical surface of described tension ring 9，Two tension rings 9 are set in the axial ledge with the both sides, end of armature spindle 6 socket of rotor disc 7 symmetrically about rotor disc 7，Two expansion sleeves 5 are set on two tension rings 9 symmetrically about rotor disc 7，The through hole corresponding with hole reserved on rotor disc 7 and screwed hole it is respectively equipped with on two expansion sleeves 5，The tension bolt 8 through hole from an expansion sleeve screws in the screwed hole fastening on another expansion sleeve through the through hole on rotor disc 7.
During rotor is connected with armature spindle, along with progressively tightening of tension bolt 8, two expansion sleeves 5 gradually move to rotor disc 7, thus synchronize to load to both sides tension ring 9 by cone match, symmetrical tensioner, the axially loaded radial direction expanding force being converted into tension ring 9 of tension bolt 8, make the described flange of rotor disc end be fastened on armature spindle, thus realize a rotor 3 with armature spindle 6 without bonded one.
It will be understood to those of skill in the art that is that in this description, disclosure is indefiniteness, above-mentioned embodiment can be made various modifications and variations without deviating from spirit and scope of the present utility model.
Claims (1)
- null1. an internal rotor permanent-magnetic direct wind-driven generator rotor and armature spindle without bonded device，Including two expansion sleeves (5) and two tension rings (9)，The centre bore of expansion sleeve (5) is taper hole，The fit on face of two tension rings (9) is the conical surface，The taper hole of described expansion sleeve (5) matches with the conical surface of described tension ring (9)，In the axial ledge of the both sides, end being socketed with armature spindle (6) that two tension rings (9) are set in rotor disc (7) symmetrically about rotor disc (7)，Two expansion sleeves (5) are set on two tension rings (9) symmetrically about rotor disc (7)，Tensioner screwed hole and the through hole of circle distribution of circle distribution it is respectively equipped with on two expansion sleeves (5)，And it is corresponding with the through hole that rotor disc (7) is above reserved，The tension bolt (8) through hole from an expansion sleeve screws in the screwed hole on another expansion sleeve through the through hole on rotor disc (7) and tightens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520982348.5U CN205453386U (en) | 2015-12-03 | 2015-12-03 | No key connecting device of inner rotor permanent -magnet direct -drive wind power plant rotor and rotor shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520982348.5U CN205453386U (en) | 2015-12-03 | 2015-12-03 | No key connecting device of inner rotor permanent -magnet direct -drive wind power plant rotor and rotor shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205453386U true CN205453386U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520982348.5U Active CN205453386U (en) | 2015-12-03 | 2015-12-03 | No key connecting device of inner rotor permanent -magnet direct -drive wind power plant rotor and rotor shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205453386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947461A (en) * | 2017-10-10 | 2018-04-20 | 大连钰霖电机有限公司 | Motor and dynamical system |
-
2015
- 2015-12-03 CN CN201520982348.5U patent/CN205453386U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947461A (en) * | 2017-10-10 | 2018-04-20 | 大连钰霖电机有限公司 | Motor and dynamical system |
| CN107947460A (en) * | 2017-10-10 | 2018-04-20 | 大连钰霖电机有限公司 | Motor and dynamical system |
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| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Xin Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
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