CN209001693U - A kind of rotor punching - Google Patents
A kind of rotor punching Download PDFInfo
- Publication number
- CN209001693U CN209001693U CN201821496474.XU CN201821496474U CN209001693U CN 209001693 U CN209001693 U CN 209001693U CN 201821496474 U CN201821496474 U CN 201821496474U CN 209001693 U CN209001693 U CN 209001693U
- Authority
- CN
- China
- Prior art keywords
- sheet body
- locating piece
- rotor punching
- locating
- rotor
- 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
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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model discloses a kind of rotor punchings, are related to technical field of motors, its key points of the technical solution are that: including circular sheet body, shaft hole is offered at the center of the sheet body, the side wall of shaft hole offers keyway；The sheet body is evenly distributed with several conducting bar slots along its circumferential direction, projection is several along its axial end face locating piece for the sheet body, the locating piece is uniformly distributed along the circumferential direction of sheet body, the locating piece is in a circular table shape, and the locating piece is less than the other end far from one end of the sheet body, the sheet body offers the locating slot being correspondingly embedded in for the locating piece on the end face of the locating piece.Locating piece and locating slot are set, and when being overlapped to rotor punching, locating piece can be embedded in locating slot, so that being less likely to occur to slide between two neighboring rotor punching, so that rotor punching is more stable in superposition.
Description
Technical field
The utility model relates to technical field of motors, more specifically, it relates to a kind of rotor punching.
Background technique
Motor refers to a kind of calutron that electric energy conversion or transmitting are realized according to the law of electromagnetic induction, internal structure of motor
Usually it is made of rotor and rotor, and rotor is to be superimposed to constitute by multiple rotor punchings.Rotor punching is a kind of benefit
The part produced with punching machine, a kind of silicon steel sheet that rotor punching is as used as rotor in the motor, because manufacture
Specification is different, and suitable for the motor of different capacity, rotor punching is usually very thin, and thickness is less than 1 millimeter, multi-disc rotor punching phase
It is mutually superimposed, then forms a rotor around entering conducting wire in the groove of punching, rotor punching is the key that zero in motor
Component.
The Chinese invention patent that existing such as application publication number is CN102035278A discloses a kind of cast-aluminum rotor punching
Piece, including sheet body offer shaft hole at the center of sheet body, and the side wall of shaft hole offers keyway；It is circumferentially distributed on sheet body
There is a conducting bar slot, cutting has connection conducting bar slot to cut gap on the outer trough edge to the sagittal plane on sheet body periphery of conducting bar slot.
When being overlapped using above-mentioned rotor punching, the end face of rotor is smoother, between two neighboring rotor punching
It is easy to happen skidding when superposition, causes superposition between rotor punching to be not sufficiently stable, has much room for improvement.
Utility model content
In view of the deficienciess of the prior art, the utility model provides a kind of rotor punching, it is superimposed with rotor punching
When it is fixed steady between each other, it is not easy to skidding advantage occurs.
To achieve the above object, the utility model provides following technical solution:
A kind of rotor punching, including circular sheet body offer shaft hole, the side wall of shaft hole at the center of the sheet body
Offer keyway；The sheet body is evenly distributed with several conducting bar slots along its circumferential direction, and the sheet body is along its axial end face
Upper projection is several locating piece, and the locating piece is uniformly distributed along the circumferential direction of sheet body, and the locating piece is in a circular table shape, and described fixed
Position block is less than the other end far from one end of the sheet body, and the sheet body is offered on the end face of the locating piece for described fixed
The locating slot that position block is correspondingly embedded in.
Through the above technical solutions, by setting locating piece and locating slot, when being overlapped to rotor punching, locating piece
It can be embedded in locating slot, so that being less likely to occur to slide between two neighboring rotor punching, so that rotor punching is in superposition
It is more stable.Locating piece is arranged in truncated cone-shaped, and rotary table has certain guide effect, so that locating piece is easier to be embedded into positioning
In slot.On the other hand, locating piece truncated cone-shaped is arranged, and compared to cylindrical setting, rotor punching is less susceptible in punch forming
There is the case where locating piece side wall punching press rupture, increases the yields of production.
Further, the distance of the one end of the locating piece far from the sheet body to the sheet body is less than or equal to described
The thickness of body.
Through the above technical solutions, the locating piece of the last one rotor punching can when rotor punching is superimposed composition rotor
Lid conjunction is carried out by being adapted to rotor punching with holes with it with one, so that the two ends of rotor being composed is integrally relatively flat,
Rotor is reduced around interference when entering conducting wire.
Further, the locating piece is provided with guide surface far from one end of the sheet body, and the guide surface is set to institute
It states on the side wall of locating piece.
Through the above technical solutions, setting guide surface, so that locating piece is acted on by the conducting wire of guide surface, it is easier to chimeric
Into locating slot, so that rotor punching overlap-add operation is more convenient.
Further, the angle a between the locating piece side wall and the sheet body is 135 °.
Through the above technical solutions, the trial Jing Guo practical punch process, when angle is more than or equal to 135 °, punch process
When yields it is relatively high, but when angle is 135 °, lesser area occupied can be arranged at the bottom of rotary table, therefore use the angle
Degree.
Further, at the notch of the locating slot with the sheet body rounding off.
Through the above technical solutions, forming rounding off between notch and sheet body, transition face can also be led locating piece
To effect, in addition rounding off, reduces the recessed situation in side of colliding with when rotor punching is superimposed with notch.
Further, the quantity of the keyway is two and is circumferentially uniformly distributed along shaft hole.
Through the above technical solutions, using high speed stamping processing when, can stamping pressure be balanced, reduce because
The case where unilateral punching press leads to rotor punching deformation occurs, increase the yields of production.
Further, the quantity of the locating piece is three, and the locating piece and the keyway be not in the sheet body
It is same radially.
Through the above technical solutions, locating piece and the keyway not sheet body it is same radially, when carrying out stator punching
Piece be superimposed when, once the position of locating piece and locating slot be in not correspond to be superimposed in situation when, keyway will misplace, convenient in time
It was found that the situation of superposition mistake.
Further, the sheet body is uniformly distributed circumferentially there are three heat release hole, and the heat release hole is arranged in kidney ellipsoid.
Through the above technical solutions, setting heat release hole, so that the gap between two neighboring rotor punching passes through heat release hole
It is connected to, is more advantageous to flowing of the air-flow in rotor, to strengthen whole heat dissipation performance, heat release hole is set in kidney ellipsoid
It sets, compared to rectangular setting, reduces the stress at right-angle side and concentrate, in addition the setting of kidney ellipsoid is more advantageous to stator punching
Cleaning, it is possible to reduce rectangular setting edge dust accretions are difficult to the case where cleaning.
Compared with prior art, the utility model has the beneficial effects that
(1) by setting locating piece and locating slot, when being overlapped to rotor punching, locating piece can be embedded in locating slot
It is interior, so that being less likely to occur to slide between two neighboring rotor punching, so that rotor punching is more stable in superposition.Locating piece
It is arranged in truncated cone-shaped, rotary table has certain guide effect, so that locating piece is easier to be embedded into locating slot.On the other hand,
The setting of locating piece truncated cone-shaped, compared to cylindrical setting, rotor punching is less susceptible to locating piece side wall occur in punch forming
The case where punching press ruptures, increases the yields of production；
(2) by setting guide surface, so that locating piece is acted on by the conducting wire of guide surface, it is easier to be fitted to locating slot
It is interior, so that rotor punching overlap-add operation is more convenient；
(3) by setting heat release hole, so that the gap between two neighboring rotor punching is connected to by heat release hole, more
Be conducive to flowing of the air-flow in rotor, to strengthen whole heat dissipation performance, heat release hole is arranged in kidney ellipsoid, compared to side
The setting of shape reduces stress at right-angle side and concentrates, and in addition the setting of kidney ellipsoid is more advantageous to the cleaning of stator punching, can be with
Reduce rectangular setting edge dust accretions and is difficult to the case where cleaning.
Detailed description of the invention
Fig. 1 is the overall schematic of embodiment；
Fig. 2 is the structural schematic diagram of embodiment positioning groove and positioning block.
Appended drawing reference: 1, sheet body；2, shaft hole；3, keyway；4, conducting bar slot；5, locating piece；6, locating slot；7, heat release hole；
8, guide surface.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
Embodiment:
A kind of rotor punching offers shaft hole 2, shaft hole 2 at the center of sheet body 1 as shown in Figure 1, circular sheet body 1
Side wall offer keyway 3, keyway 3 is along the axial both ends of sheet body 1 completely through in sheet body 1.The quantity of keyway 3 is two and edge
Shaft hole 2 is circumferential to be uniformly distributed on sheet body 1.Sheet body 1 is evenly distributed with several conducting bar slots 4 along its circumferential direction, leads in embodiment
The quantity of bar groove 4 is 17.Projection is several along its axial end face locating piece 5 for sheet body 1, and locating piece 5 is along sheet body 1
Circumferential direction be uniformly distributed, in embodiment the quantity of locating piece 5 be three, and locating piece 5 with keyway 3 not in the same of sheet body 1
Radially.
As shown in Figure 1 and Figure 2, locating piece 5 is in a circular table shape, and locating piece 5 is less than the other end far from one end of the sheet body 1.
The one end of locating piece 5 far from the sheet body 1 is less than or equal to the thickness of sheet body 1 to the distance of sheet body 1, and locating piece 5 is far from sheet body 1
One end be provided with guide surface 8, guide surface 8 is cambered surface and is set on the side wall of locating piece 5, so that locating piece 5 is far from sheet body 1
One end and its side wall formed rounding off.The section of locating piece 5 is in isosceles trapezoid, the folder between 5 side wall of locating piece and sheet body 1
Angle a is 135 °.Sheet body 1 offers locating slot 6, the friendship between the notch and sheet body 1 of locating slot 6 on the end face of locating piece 5
It is provided with fillet in boundary, passes through fillet and the formation rounding off of sheet body 1 at the notch of locating slot 6.
As shown in Figure 1, sheet body 1 is uniformly distributed circumferentially there are three heat release hole 7, heat release hole 7 is arranged and radiates in kidney ellipsoid
Hole 7 is along the axial both ends of sheet body 1 through sheet body 1.
When being overlapped to rotor punching, the keyway 3 of two rotor punchings is aligned first, while making locating slot 6
It is corresponding with locating piece 5, then the two fitting is overlapped.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of rotor punching, including circular sheet body (1), shaft hole (2), shaft are offered at the center of the sheet body (1)
The side wall in hole (2) offers keyway (3)；The sheet body (1) is evenly distributed with several conducting bar slots (4), feature along its circumferential direction
Be: projection is several along its axial end face has locating piece (5) for the sheet body (1), and the locating piece (5) is along sheet body
(1) circumferential direction is uniformly distributed, and the locating piece (5) is in a circular table shape, and the one end of the locating piece (5) far from the sheet body (1)
Less than the other end, the sheet body (1) offers on the end face of the locating piece (5) to be correspondingly embedded in for the locating piece (5)
Locating slot (6).
2. a kind of rotor punching according to claim 1, it is characterised in that: the locating piece (5) is far from the sheet body (1)
One end to the sheet body (1) distance be less than or equal to the sheet body (1) thickness.
3. a kind of rotor punching according to claim 2, it is characterised in that: the locating piece (5) is far from the sheet body (1)
One end be provided with guide surface (8), the guide surface (8) is set on the side wall of the locating piece (5).
4. a kind of rotor punching according to claim 3, it is characterised in that: locating piece (5) side wall and the sheet body
(1) the angle a between is 135 °.
5. a kind of rotor punching according to claim 4, it is characterised in that: at the notch of the locating slot (6) with it is described
Sheet body (1) rounding off.
6. a kind of rotor punching according to claim 5, it is characterised in that: the quantity of the keyway (3) is two and edge
Shaft hole (2) is circumferentially uniformly distributed.
7. a kind of rotor punching according to claim 6, it is characterised in that: the quantity of the locating piece (5) is three, institute
State locating piece (5) and the keyway (3) not the sheet body (1) it is same radially.
8. a kind of rotor punching according to claim 7, it is characterised in that: the sheet body (1) has been uniformly distributed circumferentially
Three heat release holes (7), the heat release hole (7) are arranged in kidney ellipsoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821496474.XU CN209001693U (en) | 2018-09-13 | 2018-09-13 | A kind of rotor punching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821496474.XU CN209001693U (en) | 2018-09-13 | 2018-09-13 | A kind of rotor punching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209001693U true CN209001693U (en) | 2019-06-18 |
Family
ID=66801280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821496474.XU Expired - Fee Related CN209001693U (en) | 2018-09-13 | 2018-09-13 | A kind of rotor punching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209001693U (en) |
-
2018
- 2018-09-13 CN CN201821496474.XU patent/CN209001693U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 Termination date: 20210913 |