CN206099559U - Pivot and have its motor - Google Patents

Pivot and have its motor Download PDF

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Publication number
CN206099559U
CN206099559U CN201620847608.2U CN201620847608U CN206099559U CN 206099559 U CN206099559 U CN 206099559U CN 201620847608 U CN201620847608 U CN 201620847608U CN 206099559 U CN206099559 U CN 206099559U
Authority
CN
China
Prior art keywords
shaft part
protuberance
linkage section
rotating shaft
shaft
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.)
Expired - Fee Related
Application number
CN201620847608.2U
Other languages
Chinese (zh)
Inventor
胡余生
尚文海
赵杰明
刘健宁
张小波
张芳
贾金信
魏琼
李广海
郭长光
李忠雨
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.)
Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Original Assignee
Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd filed Critical Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority to CN201620847608.2U priority Critical patent/CN206099559U/en
Application granted granted Critical
Publication of CN206099559U publication Critical patent/CN206099559U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a pivot and have its motor. Wherein the pivot includes the axle sleeve, first shaft part, the first end position of first shaft part is in the axle sleeve, second shaft part, the first end position of second shaft part are in the axle sleeve, and the first end of first shaft part is connected with the first end of second shaft part, magnet conductive shaft section, cover are located on first shaft part and the second shaft part and are lain in the axle sleeve. Syllogic fits is adopted in this pivot, and wherein, the first end that lies in the first shaft part at magnet conductive shaft section both ends is connected with the first end of second shaft part, has blocked the axial magnetic circuit of pivot effectively, has reduced axial magnetic leakage. Improved the rigidity of pivot and the structural strength of pivot, this simple structure has reduced the pivot processing degree of difficulty.

Description

Rotating shaft and the motor with it
Technical field
The utility model is related to motor device technical field, in particular to a kind of rotating shaft and the motor with it.
Background technology
High speed permanent magnet motor rotor structure of the prior art, using the annular magnetic steel of segmentation, rotor is also adopted by segmented Structure (referring to Fig. 1), is first bound up the extremity piece 4,5 at segmentation magnet steel 2 and two ends by the guide rod 3 of a TBE (threaded both ends) (being worked into each component outside dimension consistent), then completed by the assembling of the disposable thermal of sheath 1.Hot charging is relatively easy, but structure is slightly Micro- complexity.
Additionally, the common high speed permanent magnet motor rotor structure of another kind of the prior art, rotor is using monoblock ring Shape magnet steel (surface-mount type magnet steel), rotor adopts a main shaft, and by sheath magnet steel and transmitting torque are protected.Such high speed rotor knot Structure, although adopt is carried out every magnetic treatment every magnetic baffle plate, but its main shaft is generally the annular at permeability magnetic material, therefore rotor Magnetic field produced by magnet steel can also form coupling circuit through the bearing rotor of main shaft Yu both sides, and is produced from the magnetic field of radial direction magnetic bearing Raw interference, increases the control difficulty of both sides magnetic bearing.
Utility model content
Main purpose of the present utility model is to provide a kind of rotating shaft and the motor with it, to solve prior art transfer The problem of sub- leakage field.
To achieve these goals, according to one side of the present utility model, there is provided a kind of rotating shaft, including:Axle sleeve;The One shaft part, the first end of the first shaft part is located in axle sleeve;Second shaft part, the first end of the second shaft part is located in axle sleeve, first axle The first end of section is connected with the first end of the second shaft part;Magnetic conduction shaft part, is sheathed on the first shaft part and the second shaft part and is located at In axle sleeve.
Further, the first protuberance is provided with the end face of the first end of the first shaft part, the first end of the second shaft part The second protuberance is provided with end face, the first protuberance is oppositely arranged and is connected with the second protuberance, magnetic conduction shaft part is sheathed on On one protuberance and/or the second protuberance.
Further, it is provided with connection bump on the end face of one of them of the first protuberance and the second protuberance, first Protuberance with the recess that is engaged with connection bump is provided with another end face of the second protuberance.
Further, connection bump includes:First linkage section, one end of the first linkage section is connected with the end face of the first shaft part Connect;Second linkage section, the second linkage section is connected with the second end of the first linkage section, the first linkage section and/or the second linkage section Outer peripheral face on be provided with external screw thread.
Further, the first linkage section is coaxially disposed with the second linkage section.
Further, external diameter of the external diameter of the first linkage section more than the second linkage section.
Further, step is provided with recess, the inwall of recess is divided into screw thread hole section and positioning hole section, positioning by step The hole wall of hole section fits with the outer peripheral face of connection bump.
Further, toroidal cavity is formed between the end face and step of the first linkage section.
Further, there is distance between the end face of the second linkage section and the bottom of recess.
Further, magnetic conduction shaft part and the first protuberance and the second protuberance gap coordinate.
Further, magnetic conduction shaft part and the first protuberance and the second protuberance gap are L1, wherein, 0.05mm≤L1≤ 0.1mm。
Further, the inwall of axle sleeve and the first shaft part, the second shaft part form annular accommodating chamber, and magnetic conduction shaft part is arranged on ring In shape accommodating chamber.
Further, the end of magnetic conduction shaft part and the first shaft part and/or the second shaft part along the first shaft part axial direction End face has distance.
Further, the end of magnetic conduction shaft part and the first shaft part and/or the second shaft part along the first shaft part axial direction End face has apart from L2, wherein, 0≤L2≤0.1mm.
Further, rotating shaft also includes:Magnet steel, magnetic steel sleeve is on magnetic conduction shaft part and is located in annular accommodating chamber, magnet steel Coordinate with the intersegmental gap of magnetic conductive axis.
According to another aspect of the present utility model, there is provided a kind of motor, including rotating shaft, rotating shaft is above-mentioned rotating shaft.
Using the technical solution of the utility model, rotating shaft includes axle sleeve, the first shaft part, the second shaft part.The of first shaft part One end is located in axle sleeve, and the first end of the second shaft part is located in axle sleeve, the first end of the first end of the first shaft part and the second shaft part It is connected.Magnetic conduction shaft part is sheathed on the first shaft part and the second shaft part and is located in axle sleeve.The rotating shaft adopts three-stage cooperation side Formula, wherein, the first end positioned at first shaft part at magnetic conduction shaft part two ends is connected with the first end of the second shaft part, effectively blocks The axial magnetic circuit of rotating shaft, reduces axial leakage field.Improve the rigidity of rotating shaft and the structural strength of rotating shaft, the simple structure Reduce rotating shaft difficulty of processing.
Description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding to of the present utility model, this practicality New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model. In the accompanying drawings:
Fig. 1 shows the structural representation of rotating shaft in prior art;
Fig. 2 shows the structural representation of the embodiment according to rotating shaft of the present utility model;
Fig. 3 shows the structural representation of the embodiment one of connection bump in Fig. 2;And
Fig. 4 shows the structural representation of the embodiment two of connection bump in Fig. 2.
Wherein, above-mentioned accompanying drawing is marked including the following drawings:
10th, axle sleeve;20th, the first shaft part;21st, the first protuberance;30th, the second shaft part;31st, the second protuberance;40th, magnetic conductive axis Section;41st, the first linkage section;42nd, the second linkage section;50th, recess;51st, step;60th, magnet steel.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the utility model in detail.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
It should be noted that the description and claims of this application and the term " first " in above-mentioned accompanying drawing, " Two " it is etc. the object for distinguishing similar, without for describing specific order or precedence.It should be appreciated that so using Term can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except here Order beyond those of diagram or description is implemented.Additionally, term " comprising " and " having " and their any deformation, it is intended that Be cover it is non-exclusive include, for example, contain process, method, system, product or the equipment of series of steps or unit not Be necessarily limited to those steps or the unit clearly listed, but may include clearly not list or for these processes, side Other intrinsic steps of method, product or equipment or unit.
For the ease of description, space relative terms can be used here, such as " ... on ", " ... top ", " in ... upper surface ", " above " etc., for describing such as a device or feature shown in the figure and other devices or spy The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices To be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and " in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and And respective explanations are made to the relative description in space used herein above.
Now, the illustrative embodiments according to the application are more fully described with reference to the accompanying drawings.However, these are exemplary Embodiment can be implemented by many different forms, and should not be construed to be limited solely to embodiment party set forth herein Formula.It should be appreciated that thesing embodiments are provided so that disclosure herein is thoroughly and complete, and these are shown The design of example property embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, it is possible to expand The big thickness of layer and region, and make to be presented with like reference characters identical device, thus they are retouched by omitting State.
As shown in Fig. 2 according to one embodiment of the present utility model, there is provided a kind of rotating shaft.The rotating shaft include axle sleeve 10, First shaft part 20, the second shaft part 30.The first end of the first shaft part 20 is located in axle sleeve 10, and the first end of the second shaft part 30 is located at axle In set 10, the first end of the first shaft part 20 is connected with the first end of the second shaft part 30.Magnetic conduction shaft part 40 is sheathed on the first shaft part 20 and second on shaft part 30 and are located in axle sleeve 10.
In the present embodiment, the rotating shaft adopts three-stage fit system, wherein, positioned at the first axle at the two ends of magnetic conduction shaft part 40 The first end of section 20 is connected with the first end of the second shaft part 30, has effectively blocked the axial magnetic circuit of rotating shaft, reduces axial direction Leakage field.The rigidity of rotating shaft and the structural strength of rotating shaft are improve, the simple structure reduces rotating shaft difficulty of processing.
Wherein, the first protuberance 21, the first end of the second shaft part 30 are provided with the end face of the first end of the first shaft part 20 End face on be provided with the second protuberance 31, the first protuberance 21 is oppositely arranged and is connected with the second protuberance 31, magnetic conduction shaft part 40 are sheathed on the first protuberance 21 and the second protuberance 31.Certainly, on the premise of the bonding strength and rigidity of rotating shaft is ensured, Magnetic conduction shaft part 40 can also be only sheathed on one of the first protuberance 21 and the second protuberance 31.Preferably, first Protuberance 21 is identical with the external diameter of the second protuberance 31, and first convex when the first protuberance 21 is connected with the second protuberance 31 The end face for going out the protuberance 31 of portion 21 and second fits.Bonding strength and the rotating shaft that rotating shaft can further be increased so is set Rigidity so that rotating shaft during high-speed rotation have higher reliability.
Further, connection bump is provided with the end face of one of them of the first protuberance 21 and the second protuberance 31, First protuberance 21 with the recess 50 that is engaged with connection bump is provided with another end face of the second protuberance 31.I.e. such as Shown in Fig. 2, recess 50 (as shown in Figure 3) is provided with the first protuberance 21, connection is provided with the second protuberance 31 convex Rise, can so effectively increase the connective stability between the first protuberance 21 and the second protuberance 31.
As shown in Figure 3 and Figure 4, connection bump includes the first linkage section 41 and the second linkage section 42.First linkage section 41 One end is connected with the end face of the first shaft part 20, and the second linkage section 42 is connected with the second end of the first linkage section 41, and first connects External screw thread is provided with the outer peripheral face for connecing the linkage section 42 of section 41 or second.So arranging can further increase by the first shaft part 20 With the stability between the second shaft part 30, the bonding strength between the first shaft part 20 and the second shaft part 30 is improve.Certainly, exist In the case of ensureing the bonding strength and stability between the first shaft part 20 and the second shaft part 30, it is also possible to while in the first connection The outer peripheral face of the linkage section 42 of section 41 and second arranges external screw thread (not illustrating in figure) simultaneously.
Preferably, in order to improve the stability of rotating shaft, the first linkage section 41 is coaxially disposed with the second linkage section 42.
Wherein, external diameter of the external diameter of the first linkage section 41 more than the second linkage section 42.So arranging to further function as Improve the reliability of rotating shaft.
Further, step 51 is provided with recess 50, the inwall of recess 50 is divided into screw thread hole section and positioning by step 51 Hole section, the hole wall for positioning hole section fits with the outer peripheral face of connection bump.Wherein, the centering work that hole section plays countershaft is positioned With so setting can improve the assembly precision of rotating shaft.Preferably, the cross section for positioning hole section is circle, certainly, is ensureing to turn On the premise of the assembly precision of axle, the cross section for positioning hole section can also be the structure of other shapes.Such as square structure.
Wherein, formed between the end face and step 51 of the first linkage section 41 shown in the A in toroidal cavity Fig. 3.So set Put so that connection bump is during precession, ensure that and have between the table top of connection bump and step 51 enough resignings Space so that the end face of the first shaft part 20 can fit with the end face of magnet steel 60 and magnetic conduction shaft part 40, the first protuberance 21 and The end face of two protuberances 31 fits (shown in the B in Fig. 3, Fig. 4).The reliability that rotating shaft can be increased so is set.Wherein, Magnet steel 60 is sheathed on magnetic conduction shaft part 40 and is located in annular accommodating chamber, and magnet steel 60 coordinates with the gap of magnetic conduction shaft part 40.
Further, in whole precession recesses 50 and the end face of the first shaft part 20 can be enable in order to ensure connection bump End face, the first protuberance 21 with magnet steel 60 and magnetic conduction shaft part 40 fits with the end face of the second protuberance 31, by the second connection Shown in the C for being provided with Fig. 3 between 42 end face of section and the bottom of recess 50, the scope of the distance can be 0.5 to 1mm。
In order to increase the reliability of rotating shaft, the protuberance 21 of magnetic conduction shaft part 40 and first and the gap of the second protuberance 31 coordinate. Wherein, gap is L1,0.05mm≤L1≤0.1mm.
In the present embodiment, the inwall of axle sleeve 10 and the first shaft part 20, the second shaft part 30 form annular accommodating chamber, magnetic conductive axis Section 40 is arranged in annular accommodating chamber.So arrange and further increased the reliability of rotating shaft and the rigidity of rotating shaft.
Wherein, it is to ensure axially to be fitted between the first shaft part 20 and the second shaft part 30, the end of magnetic conduction shaft part 40 and first The end face along the axial direction of the first shaft part 20 of the shaft part 30 of shaft part 20 and second has distance, wherein, distance is designated as L2, wherein, 0 ≤L2≤0.1mm.The security that improve rotating shaft is so set so that the rotating shaft has more preferable during high-speed rotation Reliability.
Rotating shaft in above-described embodiment can be additionally used in motor device technical field, i.e., according to another side of the present utility model A kind of face, there is provided motor, including rotating shaft, rotating shaft is the rotating shaft in above-described embodiment.
In the present embodiment, the assembly method of the rotating shaft is:Magnetic conduction shaft part 40 is assembled on the second shaft part 30, by magnet steel 60 sets are filled in magnetic conductive axis section 40, then the first end of the first end of the first shaft part 20 and the second shaft part 30 is joined to form turns Shaft assembly, axle sleeve 10 is heated to after preset temperature to load to the outer surface of rotating assembly, and rotating assembly Jing Preset Times are cold But after, countershaft component magnetizes process, completes assembling.Wherein, remember that preset temperature is t, wherein, 400 DEG C≤t≤500 DEG C.
In the present embodiment, magnet steel 60, magnetic conduction shaft part 40 are loop configuration, because annular magnetic steel and magnetic conduction core are magnetic conductive axis There is gap between section 40, need to fill magnet steel glue to fill gap, can be in magnet steel inwall or magnetic conduction core outer peripheral face coating magnetic Steel glue, so as to reach the purpose of stationary annular magnet steel.Before i.e. 60 sets of magnet steel is filled in magnetic conductive axis section 40, in the inwall of magnet steel 60 With coating magnet steel glue on the outer peripheral face of magnetic conduction shaft part 40.Can certainly only one of wherein upper coating magnet steel glue.
The magnetic conduction core of annular is that magnetic conduction shaft part 40 adopts permeability magnetic material, and the first shaft part 20 is led with the second shaft part 30 using non- Magnetic material, has thus blocked axial magnetic circuit, reduces the axial leakage field of rotating shaft.The left side of the first shaft part 20 is provided with convex Portion, the left side of the second shaft part 30 is provided with the recess coordinated with convex portion, is matched somebody with somebody with the screw thread of the second shaft part 30 by the first shaft part 20 Conjunction links together annular magnetic steel and the first shaft part 20 with the second shaft part 30, improves the assembly performance and machinability of rotating shaft, While improve the rigidity and intensity of rotating shaft, and the auxiliary of Complex Assembly equipment frock is not needed, the dress of rotating shaft can be improved With rate.
It is between axle sleeve 10 and three sections of components (the first shaft part 20, the second shaft part 30, magnetic conduction shaft part 40) using alloy sleeve Interference fit carry out transmitting torque, the first shaft part 20 and the second shaft part 30 adopt non-magnet material, when rotating at a high speed, due to sheath Protective effect so that p-m rotor can be with safe operation.
Annular magnetic steel adopts NdFeB material, and adopts parallel magnetization because the magnet steel of parallel magnetization, all magnetic lines of force by The center of circle in one direction, is parallel to each other, so being to ensure the magnetic field sine that magnet steel is produced for the annular magnetic steel, needs to adopt Use parallel magnetization.Annular magnetic steel is enclosed within magnetic conduction core, and its left and right section is concordant with the left and right end face of magnetic conduction core.
The left end of the first shaft part 20 is provided with convex portion, and convex portion includes locating dowel and stud.The right side of the second shaft part 30 sets The recess being engaged with the first shaft part 20 is equipped with, recess includes location hole and screw, and locating dowel is located in location hole, and stud is located at In screw, i.e., locating dowel and stud equivalent to Fig. 3 in the first linkage section 41, stud equivalent to Fig. 3 in the second linkage section 42. Conversely, locating dowel and stud equivalent to Fig. 4 in the second linkage section 42, stud equivalent to Fig. 3 in the first linkage section 41.
Sheath can be using the material such as nickel-base alloy, titanium alloy or carbon fiber, sheath and the first shaft part 20, annular magnetic steel, the Two shaft parts 30 are interference fit.If sheath is filled using alloy materials such as nickel-base alloy, titanium alloys using interference hot charging or shrinkage Match somebody with somebody, if sheath is using nonmetallic materials such as carbon fibers, preferably using shrinkage assembling or direct technology for binding.
Specifically, during assembling, first magnetic conduction core is attached on the second shaft part 30, afterwards annular magnetic steel set is attached to magnetic conduction core On, then the convex thread of the left side of the first shaft part 20 is connected with the screwed hole of the right side of the second shaft part 30, aforementioned four part One rotor assembly of composition.Linked by the fastening of screw thread, the machinability of above-mentioned rotor assembly is improve, then above-mentioned Rotor assembly fine cylindrical is to specified size.
If sheath would be heated to the alloy of uniform temperature (400-500 DEG C) using alloy materials such as nickel-base alloy, titanium alloys The outer surface of the rotor assembly after sheath hot charging to above-mentioned finishing, natural cooling for a period of time, completes rotating shaft assembling, finally does Entirety magnetizes processs, completes high speed rotating shaft and makes.
Due to the nonmetallic materials thermal coefficient of expansion very little such as carbon fiber, heating carbon fiber sheath endoporus will not change substantially, Therefore rotor assembly can only be cooled down, the external diameter of rotor assembly is reduced, non metallic sheath is loaded into.
If sheath is metal, its thermal coefficient of expansion is relatively large, makes its endoporus swell by heating, just can smoothly shield Set puts into rotor assembly outer surface.
According to nonmetallic materials such as carbon fibers, then need to do cooling treatment to the rotor assembly after above-mentioned finishing, it is cold But to -200 DEG C, the shrinkage assembling of carbon fiber sheath is realized.Also carbon fiber technology for binding can directly be adopted.
In the present embodiment, recess 50 is circular hole structure, can so realize the first shaft part 20, the second shaft part 30 and lead The radial positioning of magnetic core, avoids turning the first shaft part 20, the second shaft part 30 and magnetic conduction core generation bias as far as possible.Toroidal cavity is axle To avoiding gap, it is ensured that after screw thread is screwed, magnetic conduction core and magnet steel and rotating shaft extremity piece (the first shaft part 20, the second shaft part 30) connect Contacting surface is close to, presence very close to each other.If there is the presence in gap herein, the reduction of shaft stiffness can be caused, while in rotating shaft at a high speed When rotation occurs accident collision, the abnormal problems such as shaft bending be can easily cause, rotating shaft reliability and service life reduced.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (16)

1. a kind of rotating shaft, it is characterised in that include:
Axle sleeve (10);
First shaft part (20), the first end of first shaft part (20) is located in the axle sleeve (10);
Second shaft part (30), the first end of second shaft part (30) is located in the axle sleeve (10), first shaft part (20) First end be connected with the first end of second shaft part (30);
Magnetic conduction shaft part (40), is sheathed on first shaft part (20) and second shaft part (30) and positioned at the axle sleeve (10) It is interior.
2. rotating shaft according to claim 1, it is characterised in that arrange on the end face of the first end of first shaft part (20) There is the first protuberance (21), be provided with the second protuberance (31) on the end face of the first end of second shaft part (30), described One protuberance (21) is oppositely arranged and is connected with second protuberance (31), and the magnetic conduction shaft part (40) is sheathed on described first On protuberance (21) and/or second protuberance (31).
3. rotating shaft according to claim 2, it is characterised in that first protuberance (21) and second protuberance (31) connection bump, first protuberance (21) and second protuberance (31) are provided with the end face of one of them The recess (50) being engaged with the connection bump is provided with another end face.
4. rotating shaft according to claim 3, it is characterised in that the connection bump includes:
First linkage section (41), one end of first linkage section (41) is connected with the end face of first shaft part (20);
Second linkage section (42), second linkage section (42) is connected with the second end of first linkage section (41), described External screw thread is provided with the outer peripheral face of the first linkage section (41) and/or second linkage section (42).
5. rotating shaft according to claim 4, it is characterised in that first linkage section (41) and second linkage section (42) it is coaxially disposed.
6. rotating shaft according to claim 4, it is characterised in that the external diameter of first linkage section (41) is more than described second The external diameter of linkage section (42).
7. rotating shaft according to claim 4, it is characterised in that be provided with step (51) in the recess (50), described The inwall of the recess (50) is divided into screw thread hole section and positioning hole section, hole wall and the connection of the positioning hole section by rank (51) Raised outer peripheral face fits.
8. rotating shaft according to claim 7, it is characterised in that the end face and the step of first linkage section (41) (51) toroidal cavity is formed between.
9. rotating shaft according to claim 7, it is characterised in that the end face and the recess of second linkage section (42) (50) there is distance between bottom.
10. rotating shaft according to claim 2, it is characterised in that the magnetic conduction shaft part (40) and first protuberance (21) coordinate with second protuberance (31) gap.
11. rotating shafts according to claim 10, it is characterised in that the magnetic conduction shaft part (40) and first protuberance (21) and second protuberance (31) gap be L1, wherein, 0.05mm≤L1≤0.1mm.
12. rotating shafts according to claim 1, it is characterised in that the inwall of the axle sleeve (10) and first shaft part (20), second shaft part (30) forms annular accommodating chamber, and the magnetic conduction shaft part (40) is arranged in the annular accommodating chamber.
13. rotating shafts according to claim 12, it is characterised in that the end of the magnetic conduction shaft part (40) and the first axle The end face along the first shaft part (20) axial direction of section (20) and/or the second shaft part (30) has distance.
14. rotating shafts according to claim 13, it is characterised in that the end of the magnetic conduction shaft part (40) and the first axle The end face along the first shaft part (20) axial direction of section (20) and/or the second shaft part (30) has apart from L2, wherein, 0≤ L2≤0.1mm。
15. rotating shafts according to claim 12, it is characterised in that the rotating shaft also includes:
Magnet steel (60), the magnet steel (60) is sheathed on the magnetic conduction shaft part (40) and in the annular accommodating chamber, described Magnet steel (60) coordinates with magnetic conduction shaft part (40) gap.
A kind of 16. motors, including rotating shaft, it is characterised in that the rotating shaft is turning any one of claim 1 to 15 Axle.
CN201620847608.2U 2016-08-04 2016-08-04 Pivot and have its motor Expired - Fee Related CN206099559U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620847608.2U CN206099559U (en) 2016-08-04 2016-08-04 Pivot and have its motor

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Application Number Priority Date Filing Date Title
CN201620847608.2U CN206099559U (en) 2016-08-04 2016-08-04 Pivot and have its motor

Publications (1)

Publication Number Publication Date
CN206099559U true CN206099559U (en) 2017-04-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106130222A (en) * 2016-08-04 2016-11-16 珠海格力节能环保制冷技术研究中心有限公司 Rotating shaft, the assembly method of rotating shaft, motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106130222A (en) * 2016-08-04 2016-11-16 珠海格力节能环保制冷技术研究中心有限公司 Rotating shaft, the assembly method of rotating shaft, motor
CN106130222B (en) * 2016-08-04 2018-12-07 珠海格力电器股份有限公司 Shaft, the assembly method of shaft, motor

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Granted publication date: 20170412

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