CN214543964U - High-strength motor shaft - Google Patents
High-strength motor shaft Download PDFInfo
- Publication number
- CN214543964U CN214543964U CN202120884461.5U CN202120884461U CN214543964U CN 214543964 U CN214543964 U CN 214543964U CN 202120884461 U CN202120884461 U CN 202120884461U CN 214543964 U CN214543964 U CN 214543964U
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- China
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- connecting portion
- axis body
- shaft
- motor shaft
- high strength
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a high strength motor shaft, including first axis body and second axis body, the outside of first axis body is equipped with the rotor connecting portion, be equipped with a plurality of bar-type piece on the rotor connecting portion, the left side fixedly connected with stub axle portion of first axis body, the outside of stub axle portion is equipped with third step portion, the utility model discloses have first axis body and second axis body, the outside of first axis body is equipped with the rotor connecting portion, be equipped with a plurality of bar-type piece on the rotor connecting portion for be connected with the motor, the right side of first axis body is equipped with first step portion and second step portion, the left side of second axis body is equipped with the second connecting portion, the left side fixedly connected with arc transition of second connecting portion, arc transition adopts the circular arc transition in the sudden change department in cross-section, can show and reduce stress concentration coefficient, reduce stress concentration degree to avoid appearing disconnected axle, Bending axes and the like.
Description
Technical Field
The utility model relates to a motor shaft technical field specifically is a high strength motor shaft.
Background
A shaft is a mechanical part that supports and rotates with a rotating part to transmit motion, torque, or bending moment. Generally in the form of a metal rod, the sections may have different diameters, and the parts of the motor that rotate are mounted on the shaft.
From the aspect of elasticity, a stress concentration phenomenon often occurs at places where the shape of a part is changed sharply, namely, the stress in the parts is locally increased, the phenomenon often causes fatigue cracks to occur on the parts, and accordingly static load fracture is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high strength motor shaft to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high strength motor shaft, includes first axis body and second axis body, the outside of first axis body is equipped with rotor connecting portion, be equipped with a plurality of bar-shaped piece on the rotor connecting portion, the short axial region of left side fixedly connected with of first axis body, the outside of short axial region is equipped with third step portion.
The right side of first axis body is equipped with first step portion and second step portion, the inside splined hole that is equipped with in left side of minor axis portion.
Preferably, the front side and the rear side of the first shaft body are respectively provided with a strip-shaped groove.
The right side fixedly connected with first connecting portion of second step portion, the left side of the second axle body is equipped with the second connecting portion, the excessive section of left side fixedly connected with arc of second connecting portion, the inside locating hole that is equipped with in right side of second connecting portion.
Preferably, the diameter of the first shaft body is twenty millimeters, and the diameter of the second shaft body is ten millimeters.
The first connecting part and the second connecting part are welded and fixedly connected.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses have first axis body and second axis body, the outside of first axis body is equipped with the rotor connecting portion, be equipped with a plurality of bar-shaped piece on the rotor connecting portion for be connected with the motor, the right side of first axis body is equipped with first step portion and second step portion, the left side of second axis body is equipped with the second connecting portion, the excessive section of left side fixedly connected with arc of second connecting portion, the excessive section of arc adopt the circular arc transition in the sudden change department in cross-section, can show and reduce stress concentration coefficient, reduce stress concentration degree to avoid appearing unfavorable phenomena such as disconnected axle, bent axle.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the first shaft of the present invention;
fig. 3 is a schematic structural view of the second shaft of the present invention.
In the figure: 1. a first shaft body; 2. a second shaft body; 3. a rotor connecting portion; 4. a third step portion; 5. a short shaft portion; 6. a second step portion; 7. a splined bore; 8. a bar-shaped block; 9. a strip-shaped groove; 10. a first step portion; 11. a first connection portion; 12. a second connecting portion; 13. positioning holes; 14. an arc transition section.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a high strength motor shaft, includes first axis body 1 and second axis body 2, the outside of first axis body 1 is equipped with rotor connecting portion 3, be equipped with a plurality of bar piece 8 on the rotor connecting portion 3, conveniently be connected with the motor, the right side of first axis body 1 is equipped with first step portion 10 and second step portion 6 for adapt to suitable work interval, the first connecting portion 11 of right side fixedly connected with of second step portion 6, the left side of second axis body 2 is equipped with second connecting portion 12, and first connecting portion 11 carries out joint and welding with second connecting portion 12, the excessive section 14 of left side fixedly connected with arc of second connecting portion 12 for reduce the internal stress, the inside locating hole 13 that is equipped with in right side of second connecting portion 12.
The left side fixedly connected with stub axle portion 5 of first axis body 1, the outside of stub axle portion 5 is equipped with third step portion 4.
Inside being equipped with splined hole 7 in the left side of stub axle portion 5, conveniently connect.
The front side and the rear side of first axis body 1 are equipped with bar recess 9 respectively, carry out the joint for the convenience with the inside of motor.
The diameter of the first shaft body 1 is twenty millimeters, and the diameter of the second shaft body 2 is ten millimeters.
The first connecting portion 11 and the second connecting portion 12 are clamped and welded.
Specifically, during the use, this high strength motor shaft has the primary shaft body 1 and the secondary shaft body 2, and the outside of the primary shaft body 1 is equipped with rotor connecting portion 3, be equipped with a plurality of bar piece 8 on the rotor connecting portion 3 for be connected with the motor, the right side of the primary shaft body 1 is equipped with first step portion 10 and second step portion 6, the left side of the secondary shaft body 2 is equipped with second connecting portion 12, the excessive section 14 of left side fixedly connected with arc of second connecting portion 12, the excessive section 14 of arc adopt the circular arc transition in the sudden change department in cross-section, can show and reduce stress concentration coefficient, reduce stress concentration degree to avoid appearing unfavorable phenomena such as disconnected axle, bent axle.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a high strength motor shaft, includes first axle body (1) and second axle body (2), its characterized in that: the outer side of the first shaft body (1) is provided with a rotor connecting portion (3), a plurality of strip-shaped blocks (8) are arranged on the rotor connecting portion (3), the right side of the first shaft body (1) is provided with a first step portion (10) and a second step portion (6), a right side fixedly connected with first connecting portion (11) of the second step portion (6), the left side of the second shaft body (2) is provided with a second connecting portion (12), a left side fixedly connected with arc transition section (14) of the second connecting portion (12), and a positioning hole (13) is formed in the right side of the second connecting portion (12).
2. The high strength motor shaft of claim 1, wherein: the left side fixedly connected with minor axis portion (5) of first axis body (1), the outside of minor axis portion (5) is equipped with third step portion (4).
3. The high strength motor shaft of claim 2, wherein: and a spline hole (7) is formed in the left inner part of the short shaft part (5).
4. The high strength motor shaft of claim 1, wherein: the front side and the rear side of the first shaft body (1) are respectively provided with a strip-shaped groove (9).
5. The high strength motor shaft of claim 1, wherein: the diameter of the first shaft body (1) is twenty millimeters, and the diameter of the second shaft body (2) is ten millimeters.
6. The high strength motor shaft of claim 1, wherein: the first connecting part (11) is welded with the second connecting part (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120884461.5U CN214543964U (en) | 2021-04-27 | 2021-04-27 | High-strength motor shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120884461.5U CN214543964U (en) | 2021-04-27 | 2021-04-27 | High-strength motor shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214543964U true CN214543964U (en) | 2021-10-29 |
Family
ID=78277092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120884461.5U Active CN214543964U (en) | 2021-04-27 | 2021-04-27 | High-strength motor shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214543964U (en) |
-
2021
- 2021-04-27 CN CN202120884461.5U patent/CN214543964U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |