CN208138302U - A kind of motor shaft reducing the factor of stress concentration - Google Patents
A kind of motor shaft reducing the factor of stress concentration Download PDFInfo
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- CN208138302U CN208138302U CN201820543225.5U CN201820543225U CN208138302U CN 208138302 U CN208138302 U CN 208138302U CN 201820543225 U CN201820543225 U CN 201820543225U CN 208138302 U CN208138302 U CN 208138302U
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- motor
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- connecting shaft
- axis
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Abstract
The utility model discloses a kind of motor shafts for reducing the factor of stress concentration, including first motor axis, the second motor shaft and motor, the right end of the first motor axis is provided with the first connecting shaft, first connecting shaft is fixedly connected with the first motor axis, the left end of the first motor axis is provided with rotor connecting shaft, the rotor connecting shaft is fixedly connected with the first motor axis, and the lateral wall of the rotor connecting shaft is provided with bar blocks, and the bar blocks are fixedly connected with the rotor connecting shaft；Pass through the first connecting shaft and the second connection axis connection by first motor axis and the second motor shaft, and transition cambered surface is arranged in the transition position between the first connecting shaft and the second connecting shaft, since sectional dimension variation is bigger, the factor of stress concentration is bigger, therefore arc transition is used at the mutation of ladder shaft section, it can be substantially reduced the factor of stress concentration, reduce stress concentration degree, to avoid the occurrence of the unfavorable phenomenon such as off-axis, cambered axle.
Description
Technical field
The utility model belongs to technical field of motors, and in particular to a kind of motor shaft for reducing the factor of stress concentration.
Background technique
Axis is the cylindrical object being through among bearing or among wheel or among gear, but also having is partially square
's.Axis is support rotary part and is turned round therewith with the machine components of passing movement, torque or moment of flexure.Generally round metal
Rod-shaped, each section can have different diameters.The part for making rotary motion in machine is just mounted on axis.
In the angle of Elasticity, part shape place jumpy often will appear stress concentration phenomenon, i.e.,
Stress therein locally increases, and this phenomenon often makes part fatigue crack occur, so as to cause static load fracture, so
In axis design processing, it is necessary to consider the influence of the phenomenon, otherwise will appear the case where axis is broken from transition face, this to motor and
It is very serious accident for mechanical equipment.
Utility model content
The purpose of this utility model is to provide a kind of motor shafts for reducing the factor of stress concentration, to solve above-mentioned background skill
The angle in Elasticity is proposed in art, part shape place jumpy often will appear stress concentration phenomenon, i.e.,
Stress therein locally increases, and this phenomenon often makes part fatigue crack occur, so as to cause static load fracture, so
In axis design processing, it is necessary to consider the influence of the phenomenon, otherwise will appear the case where axis is broken from transition face, this to motor and
For mechanical equipment, be very serious accident the problem of.
To achieve the above object, the utility model provides the following technical solutions：A kind of motor reducing the factor of stress concentration
Axis, including first motor axis, the second motor shaft and motor, the right end of the first motor axis is provided with the first connecting shaft, described
First connecting shaft is fixedly connected with the first motor axis, and the left end of the first motor axis is provided with rotor connecting shaft, described
Rotor connecting shaft is fixedly connected with the first motor axis, and the lateral wall of the rotor connecting shaft is provided with bar blocks, the item
Shape block is fixedly connected with the rotor connecting shaft, and the left end of the rotor connecting shaft is provided with motor shaft mounting portion, the motor
Axis mounting portion is fixedly connected with the rotor connecting shaft, and the inside of the motor shaft mounting portion offers splined hole, and described first
The right end of motor shaft is provided with second motor shaft, and second motor shaft is fixedly connected with the first motor axis, described
The inside of second motor shaft offers location hole, and the left end of second motor shaft is provided with the second connecting shaft, and described second connects
Spindle is fixedly connected with second motor shaft, and the left end of second connecting shaft is provided with transition cambered surface, the transition cambered surface
It is fixedly connected with second connecting shaft, is provided with the motor on the outside of the first motor axis, the motor and described the
The rotation connection of one motor shaft, the right side wall of the motor are provided with end housing, and the end housing is fixedly connected with the motor, the end
The right side wall of shell is provided with front housing, and the front housing is fixedly connected with the end housing.
Preferably, the diameter of the first motor axis is ten millimeters, and the first motor shaft run-out amount is zero
003 millimeter to 0. 01 millimeters of point.
Preferably, the diameter of second motor shaft is eight millimeters, and the radial beat eccentricity of second motor shaft is zero
To 0. 0 millimeters one by one.
Preferably, the junction of the first motor axis and second motor shaft is provided with the transition cambered surface, and institute
The diameter for stating transition cambered surface is 1 point 5 millimeter.
Preferably, the right end of the transition cambered surface is provided with second connecting shaft, the left end setting of the transition cambered surface
There is first connecting shaft, and the shape of the transition cambered surface is arc-shaped.
Preferably, the motor shaft mounting portion further includes the shaft shoulder, and the shaft shoulder and the motor shaft mounting portion are fixed and connected
It connects.
Preferably, the motor is internally provided with the first motor axis, and the first motor axis and the motor turn
Dynamic connection.
Compared with prior art, the utility model has the beneficial effects that：By the way that the first connecting shaft and the second connecting shaft is arranged,
First motor axis and the second motor shaft are connected by the first connecting shaft and the second connection axis connection, and in the first connecting shaft and second
Transition cambered surface is arranged in transition position between axis, and since sectional dimension variation is bigger, the factor of stress concentration is bigger, therefore cuts in multi-diameter shaft
Arc transition is used at the mutation in face, can be substantially reduced the factor of stress concentration, reduces stress concentration degree, to avoid the occurrence of
The unfavorable phenomenon such as off-axis, cambered axle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model motor；
Fig. 3 is the structural schematic diagram of the utility model transition cambered surface；
In figure：1- first motor axis, the first connecting shaft of 11-, 12- rotor connecting shaft, 13- bar blocks, the installation of 14- motor shaft
Portion, 15- splined hole, the second motor shaft of 2-, 21- location hole, the second connecting shaft of 22-, 23- transition cambered surface, 3- motor, 31- end housing,
32- front housing.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution：A kind of motor shaft reducing the factor of stress concentration,
Including first motor axis 1, the second motor shaft 2 and motor 3, the right end of first motor axis 1 is provided with the first connecting shaft 11, and first connects
Spindle 11 is fixedly connected with first motor axis 1, and the left end of first motor axis 1 is provided with rotor connecting shaft 12, rotor connecting shaft 12
It is fixedly connected with first motor axis 1, the lateral wall of rotor connecting shaft 12 is provided with bar blocks 13, bar blocks 13 and rotor connecting shaft
12 are fixedly connected, and the left end of rotor connecting shaft 12 is provided with motor shaft mounting portion 14, motor shaft mounting portion 14 and rotor connecting shaft
12 are fixedly connected, and the inside of motor shaft mounting portion 14 offers splined hole 15, and the right end of first motor axis 1 is provided with the second motor
Axis 2, the second motor shaft 2 are fixedly connected with first motor axis 1, and the inside of the second motor shaft 2 offers location hole 21, the second motor
The left end of axis 2 is provided with the second connecting shaft 22, and the second connecting shaft 22 is fixedly connected with the second motor shaft 2, the second connecting shaft 22
Left end is provided with transition cambered surface 23, and transition cambered surface 23 is fixedly connected with the second connecting shaft 22, and the outside of first motor axis 1 is provided with
Motor 3, motor 3 and first motor axis 1 are rotatablely connected, and the right side wall of motor 3 is provided with end housing 31, and end housing 31 and motor 3 are fixed
Connection, the right side wall of end housing 31 are provided with front housing 32, and front housing 32 is fixedly connected with end housing 31.
In the present embodiment, pass through the first connecting shaft 11 of setting and the second connecting shaft 22, first motor axis 1 and the second motor shaft
2 are connected by the first connecting shaft 11 and the second connecting shaft 22, and the transition between the first connecting shaft 11 and the second connecting shaft 22
Place's setting transition cambered surface 23, since sectional dimension variation is bigger, the factor of stress concentration is bigger, therefore at the mutation of ladder shaft section
Using arc transition, it can be substantially reduced the factor of stress concentration, reduce stress concentration degree, to avoid the occurrence of off-axis, cambered axle
Etc. unfavorable phenomenon.
Further, the diameter of first motor axis 1 is ten millimeters, and the radial beat eccentricity of first motor axis 1 is 0. 0
03 millimeters to 0. 01 millimeters.
In the present embodiment, the radial beat eccentricity of first motor axis 1 is between 0. 003 millimeters to 0. 01 millimeters.
Further, the diameter of the second motor shaft 2 is eight millimeters, and the radial beat eccentricity of the second motor shaft 2 is zero to zero
Zero millimeter one by one of point.
In the present embodiment, the radial beat eccentricity of the second motor shaft 2 is between zero to 0. 0 one by one millimeter.
Further, the junction of first motor axis 1 and the second motor shaft 2 is provided with transition cambered surface 23, and transition cambered surface
23 diameter is 1 point 5 millimeter.
In the present embodiment, by the way that transition cambered surface 23 is arranged, and the diameter of transition cambered surface 23 is set as 1 point 5 millimeter, can be with
The effective variable quantity for reducing sectional dimension.
Further, the right end of transition cambered surface 23 is provided with the second connecting shaft 22, and the left end of transition cambered surface 23 is provided with
One connecting shaft 11, and the shape of transition cambered surface 23 is arc-shaped.
In the present embodiment, the first connecting shaft 11 and the second connecting shaft 22 are connected by transition cambered surface 23, and structure is simple.
Further, motor shaft mounting portion 14 further includes the shaft shoulder, and the shaft shoulder is fixedly connected with motor shaft mounting portion 14.
In the present embodiment, by the way that the shaft shoulder is arranged at motor shaft mounting portion 14, facilitate the installation of motor shaft.
Further, motor 3 is internally provided with first motor axis 1, and first motor axis 1 and motor 3 be rotatablely connected.
In the present embodiment, first motor axis 1 is located at the inside of motor 3, and motor 3 is facilitated to drive the rotation of first motor axis 1.
The working principle and process for using of the utility model：After the utility model installs, motor 3 drives first motor
Axis rotation, by the first connecting shaft 11 of setting and the second connecting shaft 22, first motor axis 1 and the second motor shaft 2 connect by first
Spindle 11 and the connection of the second connecting shaft 22, and transition arcs are arranged in the transition position between the first connecting shaft 11 and the second connecting shaft 22
Face 23, since sectional dimension variation is bigger, the factor of stress concentration is bigger, therefore circular arc mistake is used at the mutation of ladder shaft section
It crosses, the factor of stress concentration can be substantially reduced, reduce stress concentration degree, to avoid the occurrence of the unfavorable phenomenon such as off-axis, cambered axle.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of motor shaft for reducing the factor of stress concentration, it is characterised in that：Including first motor axis (1), the second motor shaft (2)
It is provided with the first connecting shaft (11) with the right end of motor (3), the first motor axis (1), first connecting shaft (11) and institute
It states first motor axis (1) to be fixedly connected, the left end of the first motor axis (1) is provided with rotor connecting shaft (12), the rotor
Connecting shaft (12) is fixedly connected with the first motor axis (1), and the lateral wall of the rotor connecting shaft (12) is provided with bar blocks
(13), the bar blocks (13) are fixedly connected with the rotor connecting shaft (12), the left end setting of the rotor connecting shaft (12)
Have motor shaft mounting portion (14), the motor shaft mounting portion (14) is fixedly connected with the rotor connecting shaft (12), the motor
The inside of axis mounting portion (14) offers splined hole (15), and the right end of the first motor axis (1) is provided with second motor
Axis (2), second motor shaft (2) are fixedly connected with the first motor axis (1), and the inside of second motor shaft (2) is opened
Equipped with location hole (21), the left end of second motor shaft (2) is provided with the second connecting shaft (22), second connecting shaft (22)
It is fixedly connected with second motor shaft (2), the left end of second connecting shaft (22) is provided with transition cambered surface (23), the mistake
It crosses cambered surface (23) to be fixedly connected with second connecting shaft (22), is provided with the motor on the outside of the first motor axis (1)
(3), the motor (3) and the first motor axis (1) are rotatablely connected, and the right side wall of the motor (3) is provided with end housing (31),
The end housing (31) is fixedly connected with the motor (3), and the right side wall of the end housing (31) is provided with front housing (32), the front housing
(32) it is fixedly connected with the end housing (31).
2. a kind of motor shaft for reducing the factor of stress concentration according to claim 1, it is characterised in that：The first motor
The diameter of axis (1) is ten millimeters, and the radial beat eccentricity of the first motor axis (1) is 0. 003 millimeters to 0. 01
Millimeter.
3. a kind of motor shaft for reducing the factor of stress concentration according to claim 1, it is characterised in that：Second motor
The diameter of axis (2) is eight millimeters, and the radial beat eccentricity of second motor shaft (2) is zero to 0. 0 millimeter one by one.
4. a kind of motor shaft for reducing the factor of stress concentration according to claim 1, it is characterised in that：The first motor
The junction of axis (1) and second motor shaft (2) is provided with the transition cambered surface (23), and the transition cambered surface (23) is straight
Diameter is 1 point 5 millimeter.
5. a kind of motor shaft for reducing the factor of stress concentration according to claim 1, it is characterised in that：The transition cambered surface
(23) right end is provided with second connecting shaft (22), and the left end of the transition cambered surface (23) is provided with first connecting shaft
(11), and the shape of the transition cambered surface (23) is arc-shaped.
6. a kind of motor shaft for reducing the factor of stress concentration according to claim 1, it is characterised in that：The motor shaft peace
Dress portion (14) further includes the shaft shoulder, and the shaft shoulder is fixedly connected with the motor shaft mounting portion (14).
7. a kind of motor shaft for reducing the factor of stress concentration according to claim 1, it is characterised in that：The motor (3)
Be internally provided with the first motor axis (1), the first motor axis (1) and the motor (3) are rotatablely connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820543225.5U CN208138302U (en) | 2018-04-17 | 2018-04-17 | A kind of motor shaft reducing the factor of stress concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820543225.5U CN208138302U (en) | 2018-04-17 | 2018-04-17 | A kind of motor shaft reducing the factor of stress concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208138302U true CN208138302U (en) | 2018-11-23 |
Family
ID=64293777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820543225.5U Active CN208138302U (en) | 2018-04-17 | 2018-04-17 | A kind of motor shaft reducing the factor of stress concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208138302U (en) |
-
2018
- 2018-04-17 CN CN201820543225.5U patent/CN208138302U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213000 standard workshop of HUTANG Industrial Park, HUTANG Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Xuquan Motor Co.,Ltd. Address before: 213000 standard workshop of HUTANG Industrial Park, HUTANG Town, Wujin District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU XUQUAN PRECISE ELECTRIC CO.,LTD. |