CN207117336U - Rotor and motor - Google Patents
Rotor and motor Download PDFInfo
- Publication number
- CN207117336U CN207117336U CN201721086120.3U CN201721086120U CN207117336U CN 207117336 U CN207117336 U CN 207117336U CN 201721086120 U CN201721086120 U CN 201721086120U CN 207117336 U CN207117336 U CN 207117336U
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- rotor
- balance pipe
- counterweight part
- core
- iron core
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Abstract
It the utility model is related to machine field, disclose a kind of rotor and motor, the rotor includes magnetic shoe (30), rotating shaft (10) and the first rotor iron core (21) being set in the rotating shaft (10), the first rotor iron core (21) is molded to be formed with the magnetic shoe by the first raw material and is integrated, the end set of at least one end of the rotor has balance pipe (40), and counterweight part (50) is fixed with the balance pipe (40).Rotor and motor provided by the utility model, can not only effectively solve the problems, such as that rotor dynamic balancing surplus is big, while the cracking situation of magnetic shoe can be reduced.
Description
Technical field
Motor is the utility model is related to, more particularly to a kind of rotor and motor.
Background technology
Motor includes stator rotor, and it is a kind of device that electric energy conversion is realized by electromagnetic induction, when motor operates, turns
Son rotates relative to stator, if rotor unbalance dynamic in motion process, frequently can lead to sweep thorax, jump it is abnormal and
The problems such as abnormal heating, and then normal use and the life-span of motor are influenceed, therefore dynamic balancing of the rotor in motion process
It is particularly significant.
Wherein, the common structure of the Jing Yin design of brshless DC motor is permanent magnetism rubber rotor, and this rotor is in actual production
With the problem of rotor dynamic balancing surplus is big in application easily be present.Usual rubber rotor includes magnetic shoe and rotor core, magnetic shoe and
Rotor core is molded together by PBT plastic.Wherein, the difference of each magnetic shoe weight, the position deviation of each part, plastics are satisfied
Full scale and Shooting Technique etc. are all to influence the factor of rotor dynamic balancing surplus, and the rotor actually typically produced at present moves
Balance is all big compared with common rotor.And dynamic balancing surplus directly affects greatly that motor oscillating is big, and it can also reduce making for motor
Use the life-span.At present, typically by magnetic shoe weigh packet, improve mould positioning precision, improve the methods of Shooting Technique and turn to improve
The problem of sub- dynamic balancing surplus is big.And improving the problem of rotor dynamic balancing surplus is big, most straightforward approach is that rotor is aggravated or gone
Material, because the structure of permanent magnetism rubber rotor is limited, traditional plus balance mud method is improper to be used to adjust rotor dynamic balancing
Amount.Further, since rotor tip is mainly PBT plastic, and plastic density is small, and counterweight difficulty is big, if using the method for removing material
Improve the then easily excessive material reducing of rotor dynamic balancing surplus, so as to influence the structural strength of rotor.
In view of this, it is desirable to provide a kind of rotor that can effectively solve the problem that rotor dynamic balancing surplus is big.
Utility model content
The purpose of this utility model is to overcome the problem of dynamic balancing surplus is big existing for prior art, there is provided Yi Zhong electricity
Machine rotor and motor, the rotor can effectively reduce dynamic balancing surplus.
To achieve these goals, on the one hand the utility model provides a kind of rotor, and the rotor includes magnetic
Watt, rotating shaft and the first rotor iron core being set in the rotating shaft, the first rotor iron core by the injection of the first raw material with
The magnetic shoe is formed and is integrated, and the end set of at least one end of the rotor has balance pipe, is fixed in the balance pipe
There is counterweight part.
Preferably, the rotor includes the second rotor core, and second rotor core is set in the rotating shaft,
The first rotor iron core is set on second rotor core, the first rotor iron core, second rotor core with
And it is molded to be formed by the second raw material between the magnetic shoe and is integrated.
Preferably, first raw material is PBT plastic, and second raw material is rubber, and the balance pipe is using institute
The blind hole formed during stating the injection of the first raw material；And/or the diameter parallel of the balance pipe is in the axis of the rotating shaft.
Preferably, the balance pipe is multiple and surrounds the rotating shaft circumferentially.
Preferably, multiple balance pipe uniform intervals arrangements.
Preferably, the counterweight part is fixed on by way of interference fit in the balance pipe.
Preferably, the counterweight part is post shapes, and the counterweight part can be made by being provided with the periphery wall of the counterweight part
The structural strengthening portion being stably fixed in the balance pipe.
Preferably, the structural strengthening portion is the star toothing being arranged on the periphery wall of the counterweight part.
Preferably, one end of the close the first rotor iron core of the counterweight part is provided with the first guide frame, and/or
One end of the remote the first rotor iron core of the counterweight part is provided with the second guide frame.
Preferably, first guide frame is the cylindrical tapering to be formed on the counterweight part, and/or described second leads
It is the inner circle tapering to be formed on the counterweight part to structure.
The utility model second aspect provides a kind of motor, and the motor includes the rotor.
In the utility model, rotor using aggravate method reduce rotor dynamic balancing surplus, specifically, by
The end set balance pipe of at least one end of rotor and the fixed weight portion in balance pipe, it is dynamic flat so as to effectively solve rotor
The problem of surplus that weighs is big.In addition, in the utility model, the setting of balance pipe can not only solve that dynamic balancing surplus is big to ask
Topic, while can also solve the problems, such as magnetic shoe cracking, because the setting of balance pipe causes the glue amount of rotor tip to reduce, from
And the power of expanding with heat and contract with cold born in injection moulding process magnetic shoe reduces, and then magnetic shoe cracking situation is reduced.
Brief description of the drawings
Fig. 1 is the stereogram for the rotor that specific embodiment of the present utility model provides；
Fig. 2 is that the sectional view of the rotor shown in Fig. 1 (to be clearly shown, counterweight is not installed in some balance pipes
Portion)；
Fig. 3 is the stereogram of the counterweight part of the rotor shown in Fig. 1；
Fig. 4 is the sectional view of the counterweight part shown in Fig. 3.
Description of reference numerals
10- rotating shafts；21- the first rotor iron cores；
The rotor cores of 22- second；30- magnetic shoes；
40- balance pipes；50- counterweight parts；
51- structural strengthenings portion；The guide frames of 52- first；
The guide frames of 53- second；The mouldings of 61- first；
The mouldings of 62- second.
Embodiment
In the utility model, in the case where not making opposite explanation, the noun of locality such as " upper and lower, left and right " used is usual
Refer to the upper and lower, left and right shown in refer to the attached drawing；" inside and outside " refers to the inside and outside of the profile relative to each part in itself.
According to one side of the present utility model, specific embodiment of the present utility model provides a kind of rotor, such as
Shown in Fig. 1 and Fig. 2, the rotor includes magnetic shoe 30, rotating shaft 10 and the first rotor iron core 21 being set in rotating shaft 10,
The first rotor iron core 21 is formed with prime number magnetic shoe by the injection of the first raw material and is integrated (as shown in Fig. 2 the institute of reference 61
The part of finger is the first moulding formed in by the first raw material injection moulding process), at least one end of the rotor
End set has balance pipe 40, and counterweight part 50 is fixed with the balance pipe 40.Preferably, the material of the counterweight part 50 uses
Metal material.In the present embodiment, the end at the both ends of rotor is provided with balance pipe 40.
In the utility model, rotor using aggravate method reduce rotor dynamic balancing surplus, specifically, by
The end set balance pipe 40 of at least one end of rotor and the fixed weight portion 50 in balance pipe 40, so as to effectively solve to turn
The problem of sub- dynamic balancing surplus is big.In use, according to test data, looked for, it is necessary in dynamic balancing machine test after rotor assembles
To similar balance pipe 40 and the specification of counterweight part 50, counterweight part 50 is pressed into balance pipe 40 using frock, so as to complete 1 tune
School, adjustment rotor dynamic balancing is repeated, until meeting the requirement of dynamic balancing surplus.The rotor provided in the utility model,
Rotor dynamic balancing surplus is effectively reduced by simple structure, and it is easy for installation, it is reliable and stable, operated when correcting dynamic balancing
Easy, efficiency high.
Further, since magnetic shoe and rotor core by Shooting Technique injection together with, it is former that injection moulding process magnetic shoe bears first
Expect stress, particularly two ends of rotor caused by cooling meat, magnetic shoe length is above rotor core thickness, and the first raw material is filled out
More, the problem of caused radial stress is bigger after cooling, therefore magnetic shoe is often cracking is filled, so as to exist
Potential safety hazard.And in the utility model, the setting of balance pipe 40 can not only solve the problems, such as that dynamic balancing surplus is big, while can also
Enough solves the problems, such as magnetic shoe cracking, because the 40 of balance pipe setting causes the glue amount of rotor tip to reduce, so as to note
Power that what modeling process magnetic shoe was born expand with heat and contract with cold reduction, and then magnetic shoe cracking situation is reduced.
Wherein, rotor can include two rotor cores, i.e., the first rotor iron core 21 referred to above is (alternatively referred to as
Outer iron core) and the second rotor core 22 (iron core in alternatively referred to as) for being hereinafter previously mentioned.Specifically, the rotor bag
The second rotor core 22 is included, second rotor core 22 is set in rotating shaft 10, and the first rotor iron core 21 is set in
On two rotor cores 22, noted between the first rotor iron core 21, the second rotor core 22 and magnetic shoe 30 by the second raw material
It is moulding to be integrally formed (as shown in Fig. 2 the signified part of reference 62 is the formed in by the second raw material injection moulding process
Two mouldings).
Wherein, first raw material can be PBT plastic, and second raw material can be rubber, and the balance pipe 40 is
The blind hole formed during using the injection of the first raw material.It is understood that the setting of balance pipe 40 will not be to first turn
Sub- iron core 21 and magnetic shoe 30 form interference.Furthermore it is preferred that the diameter parallel of the balance pipe 40 is in the axis of rotating shaft 10.
Wherein, the balance pipe 40 can be multiple and surround rotating shaft 10 circumferentially, it is preferable that in view of the uniform of structure stress
Property, multiple balance pipes 40 outside arrange around the shaft by 10 axial uniform intervals.In actual use, the quantity of balance pipe 40 can basis
Actual conditions are determined, such as the situation etc. that can be split by reference to the requirement of rotor dynamic balancing surplus and magnetic shoe is determined
The quantity of balance pipe 40.
Wherein, counterweight part 50 can be fixed in balance pipe 40 in several ways, it is preferable that outside the counterweight part 50
Footpath size is consistent with the internal diameter benchmark of balance pipe 40, and the counterweight part 50 is fixed on balance pipe 40 by way of interference fit
In, so, in use, counterweight part can be pressed into balance pipe 40 by frock, the combination of its counterweight part 50 and balance pipe 40
Power is enough to bear the vibration of the centrifugal force and axial direction in rotor rotation.
Specifically, the structure type of the counterweight part 50 can have it is a variety of, such as counterweight part 50 be and the shape of balance pipe 40
Adaptable block.In the present embodiment, the counterweight part 50 is post shapes, is set on the periphery wall of the counterweight part 50
There is the structural strengthening portion 51 that counterweight part 50 can be made to be stably fixed in balance pipe 40.Structural strengthening portion 51 can so be passed through
Increase the adhesion of counterweight part 50 and balance pipe 40, so that what counterweight part 50 can be stably is fixed in balance pipe 40.
Wherein, can be selected for the concrete structure in structural strengthening portion 51 according to actual conditions, as long as can increase
The adhesion of counterweight part 50 and balance pipe 40, for example, the structural strengthening portion 51 is be arranged on the counterweight part 50 outer
Kick on perisporium.In the present embodiment, it is preferable that the structural strengthening portion 51 is the periphery wall for being arranged on counterweight part 50
On star toothing.So, installation clock star toothing can be cut in PBT plastic, so as to increase counterweight part 50 and balance pipe 40
The adhesion of mating surface.Wherein, counterweight part 50 can have plurality of specifications (can establish rules lattice with weight), the balance portion of plurality of specifications
40 can be that external diameter is identical, vary in weight.
In addition, in order to improve installation effectiveness, one end of the close the first rotor iron core 21 of the counterweight part 50 is provided with
One guide frame 52, and/or one end of the remote the first rotor iron core 21 of the counterweight part 50 are provided with the second guide frame 53.
Wherein, the first guide frame 52 is used to make counterweight part 50 easier be pressed into balance pipe 40, and the second guide frame 53 is used for
, can be by the second guide frame 53 and the cooperation of frock, so as to provide installation effectiveness when counterweight part 50 is pressed into balance pipe.
Specifically, as shown in Figure 3 and Figure 4, cylindrical tapering of first guide frame 52 for formation on counterweight part 50, and/or institute
The second guide frame 53 is stated to form the inner circle tapering on counterweight part 50.
According to other side of the present utility model, specific embodiment of the present utility model also provides a kind of motor, institute
Stating motor includes above-mentioned rotor.
In summary, rotor and motor provided by the utility model, can not only effectively solve more than rotor dynamic balancing
Measure the problem of big, while the cracking situation of magnetic shoe can be reduced.Moreover, the rotor in the utility model passes through in counterweight part
Star toothing is set on 50 periphery wall, so as to improve the adhesion of counterweight part and balance pipe, and then improves counterweight part 50 with putting down
Weigh the soundness that hole 40 combines.
Preferred embodiment of the present utility model, still, the utility model and unlimited is described in detail above in association with accompanying drawing
In this.In range of the technology design of the present utility model, a variety of simple variants can be carried out to the technical solution of the utility model,
It is combined in any suitable manner including each particular technique feature.In order to avoid unnecessary repetition, the utility model
Various combinations of possible ways are no longer separately illustrated.But these simple variants and combination should equally be considered as the utility model institute
Disclosure, belong to the scope of protection of the utility model.
Claims (11)
1. a kind of rotor, it is characterised in that the rotor includes magnetic shoe (30), rotating shaft (10) and is set in described
The first rotor iron core (21) in rotating shaft (10), the first rotor iron core (21) pass through the injection of the first raw material and the magnetic shoe
(30) formed and be integrated, the end set of at least one end of the rotor has a balance pipe (40), in the balance pipe (40)
It is fixed with counterweight part (50).
2. rotor according to claim 1, it is characterised in that the rotor includes the second rotor core
(22), second rotor core (22) is set in the rotating shaft (10), and the first rotor iron core (21) is set in described
On second rotor core (22), the first rotor iron core (21), second rotor core (22) and the magnetic shoe (30)
Between be molded to be formed by the second raw material and be integrated.
3. rotor according to claim 2, it is characterised in that first raw material is PBT plastic, and described second is former
Expect that for rubber, the balance pipe (40) be the blind hole formed during using first raw material injection；It is and/or described flat
The diameter parallel of weighing apparatus hole (40) is in the axis of the rotating shaft (10).
4. rotor according to claim 1, it is characterised in that the balance pipe (40) is multiple and turned around described
Axle (10) is circumferentially.
5. rotor according to claim 4, it is characterised in that multiple balance pipe (40) uniform intervals arrangements.
6. according to the rotor any one of claim 1-5, it is characterised in that the counterweight part (50) passes through interference
The mode of cooperation is fixed in the balance pipe (40).
7. rotor according to claim 6, it is characterised in that the counterweight part (50) is post shapes, the counterweight
The structure that the counterweight part (50) can be made to be stably fixed in the balance pipe (40) is provided with the periphery wall in portion (50)
Rib (51).
8. rotor according to claim 7, it is characterised in that the structural strengthening portion (51) is to be arranged on described match somebody with somebody
Star toothing on the periphery wall in weight portion (50).
9. rotor according to claim 6, it is characterised in that the close the first rotor of the counterweight part (50)
One end of iron core (21) is provided with the first guide frame (52), and/or the remote the first rotor iron of the counterweight part (50)
One end of core (21) is provided with the second guide frame (53).
10. rotor according to claim 9, it is characterised in that first guide frame (52) is formation in institute
The cylindrical tapering on counterweight part (50), and/or second guide frame (53) are stated to be formed on the counterweight part (50)
Inner circle tapering.
11. a kind of motor, it is characterised in that the motor includes the rotor described in any one in claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721086120.3U CN207117336U (en) | 2017-08-28 | 2017-08-28 | Rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721086120.3U CN207117336U (en) | 2017-08-28 | 2017-08-28 | Rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207117336U true CN207117336U (en) | 2018-03-16 |
Family
ID=61577952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721086120.3U Active CN207117336U (en) | 2017-08-28 | 2017-08-28 | Rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207117336U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599420A (en) * | 2018-05-31 | 2018-09-28 | 广东威灵电机制造有限公司 | rotor and motor |
| CN109450131A (en) * | 2019-01-15 | 2019-03-08 | 无锡法拉第电机有限公司 | Excitation rotor dynamic balance structure and synchronous generator |
-
2017
- 2017-08-28 CN CN201721086120.3U patent/CN207117336U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599420A (en) * | 2018-05-31 | 2018-09-28 | 广东威灵电机制造有限公司 | rotor and motor |
| CN113193672A (en) * | 2018-05-31 | 2021-07-30 | 广东威灵电机制造有限公司 | Rotor and motor |
| CN109450131A (en) * | 2019-01-15 | 2019-03-08 | 无锡法拉第电机有限公司 | Excitation rotor dynamic balance structure and synchronous generator |
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| GR01 | Patent grant |