CN204992830U - Rotor punching, rotor core and motor - Google Patents
Rotor punching, rotor core and motor Download PDFInfo
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- CN204992830U CN204992830U CN201520733907.9U CN201520733907U CN204992830U CN 204992830 U CN204992830 U CN 204992830U CN 201520733907 U CN201520733907 U CN 201520733907U CN 204992830 U CN204992830 U CN 204992830U
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- rotor punching
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Abstract
The utility model provides a rotor punching, rotor core and motor, the rotor punching includes yoke portion, 12 T shape teeth outwards extend along rotor punching radial direction in yoke portion, form the groove between the two adjacent T shape tooth, and the rotor punching center has the internal spline that gradually bursts at the seams, and the big footpath of the internal spline that gradually bursts at the seams is 11.5 millimeters, and the path of the internal spline that gradually bursts at the seams is 10.5 millimeters, and the external diameter of rotor punching is 48 millimeters, and the width of notch is 2.4 millimeters, and the interior height in groove is 8.7 millimeters, two adjacent mutual parallel arrangement of side in two adjacent grooves. By adopting the above technical scheme, it is fixed firm that the internal spline can make rotor and rotation axis on the one hand, and when the rotor rotated, the rotation axis also was synchronous rotation to the efficiency of rotor output mechanical energy has been improved. Simultaneously, the number of teeth of T shape tooth and the size and the size in groove have been improved for the motor is steady, noise reduction, long service life.
Description
Technical field
The utility model relates to a kind of rotor punching, rotor core and motor.
Background technology
Motor is widely used in the various electric equipments of industrial production and life, and existing motor has stator and rotor, and armature spindle is installed in the rotor and rotate with the rotation of rotor, and outputting power thus.Divide by the position relationship of rotor and stator, existing motor is divided into inner rotor type motor and external rotor electric machine, and the rotor of inner rotor type motor is arranged in stator, and external rotor electric machine is then that stator is arranged in rotor.
Usually, inner rotor type motor has housing and is positioned at the end cap at housing two ends, and housing and end cap surround a cavity, and stator and rotor are arranged in cavity.The middle part of stator has rotor installing hole, and rotor is arranged in rotor installing hole, and can rotate relative to stator.Armature spindle is arranged in the axis hole that rotor offers, and with rotor interference fit.
If application number is disclose a kind of rotor core in the Chinese patent " rotor core " of 201320544297.9, comprise the iron core body of a plurality of core lamination stack closed assembly composition, for offering shaft hole in the middle of iron core body, shaft hole outer ring annular spread has a plurality of T-shaped key tooth, evenly offers four location holes around shaft hole.Although, rotor core can ensure the concentricity of rotating shaft and axis hole, avoid in rotary course, cause rotating shaft to scratch, the bearing capacity of rotor core can be improved, keep motor to operate steadily, also reduce noise simultaneously, but because shaft hole is smooth, so when rotor is when rotating, rotating shaft probably can relatively rotate, and then reduces the delivery efficiency of mechanical energy.
In addition, the slot size of the winding around arranged in rotor punching is reasonable not, arrange in pairs or groups not rationally with the design of rotor punching body dimension, flute profile area is less, and the stator coil copper conductor of embedding is less, be unfavorable for motor energy efficient, the coil be wound on rotor punching tooth is fixing not firm, causes Distribution of Magnetic Field uneven, easily makes motor vibrate, produce larger noise, and the reduction useful life of motor.
Utility model content
For the deficiency that prior art exists, main purpose of the present utility model is to provide that a kind of mechanical energy delivery efficiency is high, Driving Torque comparatively greater trochanter punching.
Another object is that providing a kind of is conducive to the rotor core that motor is steady, reduce noise.
An object is to improve a kind of working stability, long service life, motor that noise is low again.
For realizing above-mentioned main purpose, the utility model provides following technical scheme: a kind of rotor punching, comprise the yoke portion of annular, described yoke portion to stretch out 12 T-shaped teeth along rotor punching radial direction, groove is formed between adjacent two T-shaped teeth, and described rotor punching center has involute inner spline, the large footpath of described involute inner spline is 11.5 millimeters, the path of described involute inner spline is 10.5 millimeters, the external diameter of described rotor punching is 48 millimeters, the width of described notch is 2.4 millimeters, the interior height of described groove is 8.7 millimeters, two adjacent sides of described two adjacent grooves are arranged in parallel.
Of the present utility modelly to be set to further: the number of teeth of described involute inner spline is 12, and corresponding with T-shaped tooth respectively.
Of the present utility modelly to be set to further: described rotor punching is also provided with 3 equally distributed clips in rotor punching center.
Of the present utility modelly to be set to further: the shape of the tooth of described involute inner spline is for semicircle and radius is 0.8 millimeter.
Compared with prior art: the utility model has the following advantages: splined hole can make rotor and rotating shaft fixation on the one hand, during rotor turns, rotating shaft is also synchronous axial system, avoids splined hole to scratch rotating shaft, substantially increases the efficiency of rotor output mechanical energy simultaneously.In addition, the size of flute profile and the optimization of quantity improve, and improve Driving Torque; Meanwhile, the clip on rotor punching, is conducive to a slice rotor punching and matches with the clip on other rotor punchings, thus play positioning action.
For realizing another object above-mentioned, the utility model provides following technical scheme: a kind of rotor core, the rotor punching identical by multiple shape is overrided to form, described rotor punching comprises the yoke portion of annular, described yoke portion to stretch out 12 T-shaped teeth along rotor punching radial direction, groove is formed between adjacent two T-shaped teeth, and described rotor punching center has involute inner spline, the large footpath of described involute inner spline is 11.5 millimeters, the path of described involute inner spline is 10.5 millimeters, the external diameter of described rotor punching is 48 millimeters, the width of described notch is 2.4 millimeters, the interior height of described groove is 8.7 millimeters, two adjacent sides of described two adjacent grooves are arranged in parallel.
Of the present utility modelly to be set to further: the number of teeth of described involute inner spline is 12, and corresponding with T-shaped tooth respectively.
Of the present utility modelly to be set to further: described rotor punching is also provided with 3 equally distributed clips in rotor punching center.
Compared with prior art: the utility model has the following advantages: splined hole can make rotor and rotating shaft fixation on the one hand, during rotor turns, rotating shaft is also synchronous axial system, avoids splined hole to scratch rotating shaft, substantially increases the efficiency of rotor output mechanical energy simultaneously.In addition, the size of flute profile and the optimization of quantity improve, and improve Driving Torque; Meanwhile, the clip on rotor punching, is conducive to a slice rotor punching and matches with the clip on other rotor punchings, thus play positioning action, be conducive to motor steadily, reduce noise.
For realizing an object again, the utility model provides following technical scheme: a kind of motor, comprise rotor and stator, described rotor comprises rotor core, described rotor core is overrided to form by the rotor punching that multiple shape is identical, described rotor punching comprises the yoke portion of annular, described yoke portion to stretch out 12 T-shaped teeth along rotor punching radial direction, groove is formed between adjacent two T-shaped teeth, and described rotor punching center has involute inner spline, the large footpath of described involute inner spline is 11.5 millimeters, the path of described involute inner spline is 10.5 millimeters, the external diameter of described rotor punching is 48 millimeters, the width of described notch is 2.4 millimeters, the interior height of described groove is 8.7 millimeters, two adjacent sides of described two adjacent grooves are arranged in parallel.
Of the present utility modelly to be set to further: the number of teeth of described involute inner spline is 12, and corresponding with T-shaped tooth respectively.
Of the present utility modelly to be set to further: described rotor punching is also provided with 3 equally distributed clips in rotor punching center.
Compared with prior art: the utility model has the following advantages: splined hole can make rotor and rotating shaft fixation on the one hand, during rotor turns, rotating shaft is also synchronous axial system, avoids splined hole to scratch rotating shaft, substantially increases the efficiency of rotor output mechanical energy simultaneously.In addition, the size of flute profile and the optimization of quantity improve, and improve Driving Torque; Meanwhile, the clip on rotor punching, is conducive to a slice rotor punching and matches with the clip on other rotor punchings, thus play positioning action, such that this machine operation is stable, long service life, noise are low.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of rotor punching of the utility model;
Fig. 2 is that large figure is sent out at the A place of Fig. 1;
Fig. 3 is the cutaway view of rotor core;
Fig. 4 is the structural representation of involute inner spline;
Fig. 5 is the structural representation of motor.
In figure: 1, rotor punching; 2, involute inner spline; 3, T-shaped tooth; 4, yoke portion; 5, interior angle; 6, corner; 7, clip; 8, groove; D, large footpath; D, path; The width of a, notch; The interior height of b, groove; 9, rotor core; 10, motor.
Embodiment
Be described further referring to figs. 1 through 5 pairs of the utility model embodiments.
A kind of rotor punching 1 of the utility model, comprise yoke portion 4, center, yoke portion 4 offers involute inner spline 2, and yoke portion 4 is provided with 12 T-shaped teeth 3, forms groove 8 between adjacent two T-shaped teeth 3, and T-shaped tooth 3 and junction, yoke portion 4 arrange in fillet, can reduce the impaired of coil.Such involute inner spline 2 is connected by spline joint pair with the splined shaft of coupling, substantially increase the firmness that involute inner spline 2 is connected with rotating shaft, especially time by the number of teeth of involute inner spline 2 and T-shaped tooth 3 number identical and position one_to_one corresponding, the stability that rotor core is connected with splined shaft is stronger, the moment of torsion of this efficiency also just making rotor core export and output improves, in addition, T-shaped tooth 3 is fillet with the interior angle 5 of the junction of outer ring, be conducive to reducing in rotor turns process, the wearing and tearing that the 3 pairs of coilings of T-shaped tooth cause, extend the useful life of motor, wherein, the large footpath of involute inner spline 2 is D11.5 millimeter, the path d of involute inner spline 2 is 10.5 millimeters, the external diameter of rotor punching 1 is 48 millimeters, the width a of described notch is 2.4 millimeters, the interior high b of described groove 8 is 8.7 millimeters, two adjacent sides of described two adjacent grooves 8 are arranged in parallel.Improve shape and the quantity of groove 8, make magnetic field more even, reduce vibration when motor runs, and then reduce noise.
As further prioritization scheme, can by as follows for the parameter designing of involute inner spline: modulus is 0.15, large footpath is 11.5, path is 10.5, wherein, the pressure on each tooth working face make a concerted effort for F at average diameter dm place, i.e. transmitting torque T=zFdm/2, and inlet coefficient ψ considers the impact of real load on each spline tooth, draw the strength condition formula of spline when being dynamically connected: P=2T*10
3/ ψ zhldm.(this account form is prior art, therefore does not add derivation at this).
Wherein, ψ is the uneven coefficient of load distribution, generally gets between ψ=0.7-0.8, and because the number of teeth is 12, here therefore choose ψ=0.75, Z gets the active length that 12, L is tooth in number of teeth the application of spline, chooses 0.5 in the application; H is the working depth of spline tooth side, because this is designed to involute inner spline, and also α=30 °, therefore choose h=m, and m is modulus, gets 0.15.
To sum up, P=F*10
3/ 0.5 ψ m, and under identical stressing conditions, the design strength of this spline is optimum, also can extend the useful life of motor further.
Further scheme is: T-shaped tooth 3 comprises the key head of circumference and axial key body, corner, key head lower end two 6 is also in circular arc, its radius is 1.5 millimeters, so also be conducive to reducing in rotor turns process, the wearing and tearing that the 3 pairs of coilings of T-shaped tooth cause, further extend the useful life of motor.
Further scheme is: on rotor punching cross section, even annular is distributed with three clips 7, several rotor punchings 1 are laminated into rotor core 9 by clip 7, the service behaviour of rotor core 9 can be improved, and then improve the service behaviour of motor 10, be motor 10 working stability, reduce noise.Clip 7 can facilitate a slice rotor punching to mate with other rotor punchings, plays positioning action accurately to them in lamination process.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. a rotor punching, it is characterized in that: the yoke portion comprising annular, described yoke portion to stretch out 12 T-shaped teeth along rotor punching radial direction, groove is formed between adjacent two T-shaped teeth, and described rotor punching center has involute inner spline, the large footpath of described involute inner spline is 11.5 millimeters, the path of described involute inner spline is 10.5 millimeters, the external diameter of described rotor punching is 48 millimeters, the width of described notch is 2.4 millimeters, the interior height of described groove is 8.7 millimeters, two adjacent sides of described two adjacent grooves are arranged in parallel.
2. rotor punching according to claim 1, is characterized in that: the number of teeth of described involute inner spline is 12, and corresponding with T-shaped tooth respectively.
3. rotor punching according to claim 1, is characterized in that: described rotor punching is also provided with 3 equally distributed clips in rotor punching center.
4. rotor punching according to claim 1, is characterized in that: the shape of the tooth of described involute inner spline is for semicircle and radius is 0.8 millimeter.
5. a rotor core, the rotor punching identical by multiple shape is overrided to form, it is characterized in that: described rotor punching comprises the yoke portion of annular, described yoke portion to stretch out 12 T-shaped teeth along rotor punching radial direction, groove is formed between adjacent two T-shaped teeth, and described rotor punching center has involute inner spline, the large footpath of described involute inner spline is 11.5 millimeters, the path of described involute inner spline is 10.5 millimeters, the external diameter of described rotor punching is 48 millimeters, the width of described notch is 2.4 millimeters, the interior height of described groove is 8.7 millimeters, two adjacent sides of described two adjacent grooves are arranged in parallel.
6. rotor core according to claim 5, is characterized in that: the number of teeth of described involute inner spline is 12, and corresponding with T-shaped tooth respectively.
7. rotor core according to claim 5, is characterized in that: described rotor punching is also provided with 3 equally distributed clips in rotor punching center.
8. a motor, comprise rotor and stator, described rotor comprises rotor core, described rotor core is overrided to form by the rotor punching that multiple shape is identical, it is characterized in that: described rotor punching comprises the yoke portion of annular, described yoke portion to stretch out 12 T-shaped teeth along rotor punching radial direction, groove is formed between adjacent two T-shaped teeth, and described rotor punching center has involute inner spline, the large footpath of described involute inner spline is 11.5 millimeters, the path of described involute inner spline is 10.5 millimeters, the external diameter of described rotor punching is 48 millimeters, the width of described notch is 2.4 millimeters, the interior height of described groove is 8.7 millimeters, two adjacent sides of described two adjacent grooves are arranged in parallel.
9. motor according to claim 8, is characterized in that: the number of teeth of described involute inner spline is 12, and corresponding with T-shaped tooth respectively.
10. motor according to claim 8, is characterized in that: described rotor punching is also provided with 3 equally distributed clips in rotor punching center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520733907.9U CN204992830U (en) | 2015-09-21 | 2015-09-21 | Rotor punching, rotor core and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520733907.9U CN204992830U (en) | 2015-09-21 | 2015-09-21 | Rotor punching, rotor core and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204992830U true CN204992830U (en) | 2016-01-20 |
Family
ID=55127155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520733907.9U Active CN204992830U (en) | 2015-09-21 | 2015-09-21 | Rotor punching, rotor core and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204992830U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300725A (en) * | 2016-10-14 | 2017-01-04 | 无锡市海升电子科技有限公司 | A kind of iron core stablizing magnetic conduction |
| CN113812064A (en) * | 2019-05-15 | 2021-12-17 | 松下知识产权经营株式会社 | Rotor and motor having the same |
-
2015
- 2015-09-21 CN CN201520733907.9U patent/CN204992830U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300725A (en) * | 2016-10-14 | 2017-01-04 | 无锡市海升电子科技有限公司 | A kind of iron core stablizing magnetic conduction |
| CN113812064A (en) * | 2019-05-15 | 2021-12-17 | 松下知识产权经营株式会社 | Rotor and motor having the same |
| CN113812064B (en) * | 2019-05-15 | 2024-05-17 | 松下知识产权经营株式会社 | Motor with a motor housing having a motor housing with a motor housing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |