CN207251377U - A kind of fit structure of rotor axis of electric and pawl pole - Google Patents
A kind of fit structure of rotor axis of electric and pawl pole Download PDFInfo
- Publication number
- CN207251377U CN207251377U CN201720721007.1U CN201720721007U CN207251377U CN 207251377 U CN207251377 U CN 207251377U CN 201720721007 U CN201720721007 U CN 201720721007U CN 207251377 U CN207251377 U CN 207251377U
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- China
- Prior art keywords
- diameter
- pawl pole
- axle body
- axis
- hole section
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Abstract
The utility model provides a kind of rotor axis of electric and the fit structure of pawl pole, including armature spindle and pawl pole, the armature spindle includes interlude, the interlude includes the first axle body, the second axle body and three-axis body, the diameter of the first axle body is more than the diameter of the second axle body, the diameter of the second axle body is more than the diameter of the three-axis body, mounting hole is offered in the pawl pole, the mounting hole includes the first hole section and the second hole section, the diameter of second hole section is more than the diameter of first hole section, the first axle body and the corresponding second hole section interference fit, filler is extruded between the three-axis body and the corresponding pawl pole.Since the first axle body and corresponding second hole section are interference fitted, and filler is extruded between three-axis body and corresponding pawl pole, axial movement of the pawl pole on armature spindle is limited with this, since convex shoulder need not be set on armature spindle, the diameter of the bar of processing rotor axis is relatively small, so that processing cost is relatively low.
Description
Technical field
It the utility model is related to the cooperation knot of a kind of assembling structure of motor, especially a kind of rotor axis of electric and pawl pole
Structure.
Background technology
As shown in Figure 1, in traditional electric machine structure, in order to avoid pawl pole 20 is in the axial movement of armature spindle 10, usually
Need to set convex shoulder 10a on armature spindle 10, and 10 generally use bar of armature spindle is processed, this is resulted in turns for processing
The diameter of the bar of sub- axis 10 is relatively large, relatively more by the waste material of chip, so that the processing cost phase of armature spindle 10
To higher.
In view of this, the applicant conducts in-depth research the fit structure of rotor axis of electric and pawl pole, there is this then
Case produces.
Utility model content
The purpose of this utility model is to provide the cooperation of a kind of relatively low rotor axis of electric of processing cost and pawl pole
Structure.
To achieve these goals, the utility model adopts the following technical solution：
The fit structure of a kind of rotor axis of electric and pawl pole, including armature spindle and two pawl poles, before the armature spindle includes
Section, back segment and coordinate with two pawl poles and the interlude between the leading portion and the back segment, the interlude bag
The first axle body of integrally connected, the second axle body and three-axis body successively are included, the diameter of the first axle body is more than second axis
The diameter of body, the diameter of the second axle body are more than the diameter of the three-axis body, and the maximum of the leading portion and the back segment is straight
Footpath is both less than the diameter of the three-axis body, offers mounting hole in the pawl pole, the mounting hole include the first hole section and with
The second hole section that the first axle body or the three-axis body coordinate, the diameter of second hole section are more than first hole section
Diameter, the first axle body and corresponding second hole section interference fit, the three-axis body and the corresponding pawl pole it
Between be extruded with filler.
One kind as the utility model is improved, and annular groove is offered on the three-axis body.
One kind as the utility model is improved, and the annular groove has three, and three annular grooves are equally spaced.
As the utility model one kind improve, between the leading portion and the interlude and the back segment with it is described in
Between be respectively arranged with discharge launder between section.
One kind as the utility model is improved, and the second axle body is interference fitted with the pawl pole.
One kind as the utility model is improved, and the outer surface of the first axle body is provided with the first annular knurl, and described second
The outer surface of axis body is provided with the second annular knurl.
Using above-mentioned technical proposal, the utility model has the advantages that：
By the way that interlude is arranged to three different axis bodies of diameter, and the first axle body and corresponding second hole section interference are matched somebody with somebody
Close, filler is extruded between three-axis body and corresponding pawl pole, axial movement of the pawl pole on armature spindle is limited with this, with tradition
Technical solution compare, due to that need not set convex shoulder on armature spindle, the diameter of the bar of processing rotor axis is relatively small, cuts
The waste material of bits is relatively fewer, so that processing cost is relatively low.
Brief description of the drawings
Fig. 1 is conventional motors armature spindle and the fit structure schematic diagram of pawl pole；
Fig. 2 is the utility model rotor axis of electric and the fit structure schematic diagram of pawl pole；
Fig. 3 is the structure diagram of the armature spindle in the utility model.
It is as follows that correspondence is indicated in figure：
10- armature spindles；10a- convex shoulders；
11- leading portions；12- back segments；
13- interludes；14- the first axle bodies；
15- the second axle bodies；16- three-axis bodies；
17- annular grooves；18- chip spaces；
20- pawl poles；21- mounting holes；
The first hole sections of 22-；The second hole sections of 23-.
Embodiment
The utility model is described further with specific embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 2-Fig. 3, the fit structure of rotor axis of electric provided in this embodiment and pawl pole, including 10 He of armature spindle
Two pawl poles 20, arrangement fits together two of which pawl pole 20 in opposite directions.
Armature spindle 10 includes leading portion 11, back segment 12 and coordinates and between leading portion 11 and back segment 12 with two pawl poles 20
Interlude 13, i.e. two pawl poles 20 are all set on interlude 13.Interlude 13 include successively the first axle body 14 of integrally connected,
The second axle body 15 and three-axis body 16, wherein, the diameter of the first axle body 14 is more than the diameter of the second axle body 15, the second axle body 15
Diameter is more than the diameter of three-axis body 16, and the outer surface of the first axle body 14 is provided with the first annular knurl, the appearance of the second axle body 15
Face is provided with the second annular knurl, and the first annular knurl and the second annular knurl are preferably both straight annular knurl.In addition, the maximum of leading portion 11 and back segment 12 is straight
Footpath is both less than the diameter of three-axis body 16, is penetrated easy to pawl pole.
The structure of two pawl poles 20 is identical, and by taking one of pawl pole 20 as an example, mounting hole 21 is offered in pawl pole 20, installation
Hole 21 includes the first hole section 22 and the second hole section 23 coordinated with the first axle body 14 or three-axis body 16, wherein, the second hole section 23
Diameter be more than the first hole section 22 diameter.
The first axle body 14 and corresponding second hole section 23 are interference fitted, and are extruded between three-axis body 16 and corresponding pawl pole 20
There is filler, specifically, after two pawl poles 20 are set on armature spindle 10, the second hole section 23 of one of pawl pole 20 is located at and the
At one axis body, 14 corresponding position, second hole section 23 and the first axle body 14 are interference fitted, the second hole of another pawl pole 20
Section 23 is located at at 16 corresponding position of three-axis body, being squeezed between the inner wall of second hole section 23 and the outer wall of three-axis body 16
Filler is pressed with, the axial movement of corresponding pawl pole 20 is limited with this, so may insure two pawl poles 20 all without in armature spindle 10
Axial movement.
Preferably, in the present embodiment, annular groove 17 is offered on three-axis body 16, annular groove 17 there are three, three annular grooves 17
It is equally spaced, the filler that so may insure to be squeezed between armature spindle 10 and corresponding pawl pole 20 not easily runs off.Certainly, annular groove
17 quantity can be determined according to being actually needed.
Preferably, in the present embodiment, between leading portion 11 and interlude 13 and between back segment 12 and interlude 13 respectively
It is provided with discharge launder 18.
In addition, in the present embodiment,, will when being arranged pawl pole 20 using interference fit between the second axle body 15 and pawl pole 20
Armature spindle 10 is knocked in the mounting hole 21 in pawl pole 20.
The utility model is described in detail above in conjunction with attached drawing, but the embodiment of the utility model and not only
It is limited to the above embodiment, those skilled in the art can make various modifications according to the prior art to the utility model, such as will
The diameter of three-axis body 16 is arranged to mutually equal with the first axle body 14, these belong to the scope of protection of the utility model.
Claims (6)
1. the fit structure of a kind of rotor axis of electric and pawl pole, including armature spindle and two pawl poles, it is characterised in that the rotor
Axis includes leading portion, back segment and coordinates with two pawl poles and the interlude between the leading portion and the back segment, described
Interlude is including the first axle body of integrally connected, the second axle body and three-axis body, the diameter of the first axle body are more than institute successively
The diameter of the second axle body is stated, the diameter of the second axle body is more than the diameter of the three-axis body, the leading portion and the back segment
Maximum gauge be both less than the diameter of the three-axis body, mounting hole is offered in the pawl pole, the mounting hole includes first
Hole section and the second hole section coordinated with the first axle body or the three-axis body, the diameter of second hole section are more than described the
The diameter of one hole section, the first axle body and the corresponding second hole section interference fit, the three-axis body and corresponding institute
State and be extruded with filler between pawl pole.
2. the fit structure of rotor axis of electric as claimed in claim 1 and pawl pole, it is characterised in that opened on the three-axis body
Equipped with annular groove.
3. the fit structure of rotor axis of electric as claimed in claim 2 and pawl pole, it is characterised in that the annular groove has three,
Three annular grooves are equally spaced.
4. the fit structure of rotor axis of electric as claimed in claim 1 and pawl pole, it is characterised in that the leading portion and it is described in
Between be respectively arranged with discharge launder between section and between the back segment and the interlude.
5. the fit structure of the rotor axis of electric and pawl pole as described in any claim in claim 1-4, it is characterised in that
The second axle body is interference fitted with the pawl pole.
6. the fit structure of the rotor axis of electric and pawl pole as described in any claim in claim 1-4, it is characterised in that
The outer surface of the first axle body is provided with the first annular knurl, and the outer surface of the second axle body is provided with the second annular knurl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720721007.1U CN207251377U (en) | 2017-06-20 | 2017-06-20 | A kind of fit structure of rotor axis of electric and pawl pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720721007.1U CN207251377U (en) | 2017-06-20 | 2017-06-20 | A kind of fit structure of rotor axis of electric and pawl pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207251377U true CN207251377U (en) | 2018-04-17 |
Family
ID=61878078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720721007.1U Active CN207251377U (en) | 2017-06-20 | 2017-06-20 | A kind of fit structure of rotor axis of electric and pawl pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207251377U (en) |
-
2017
- 2017-06-20 CN CN201720721007.1U patent/CN207251377U/en active Active
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| GR01 | Patent grant |