CN205017162U - Balancing piece and motor - Google Patents
Balancing piece and motor Download PDFInfo
- Publication number
- CN205017162U CN205017162U CN201520756998.8U CN201520756998U CN205017162U CN 205017162 U CN205017162 U CN 205017162U CN 201520756998 U CN201520756998 U CN 201520756998U CN 205017162 U CN205017162 U CN 205017162U
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- China
- Prior art keywords
- balance weight
- motor
- rotor
- balancing piece
- hole
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- Manufacture Of Motors, Generators (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a balancing piece and motor, this balancing piece is eccentric structure, and the balancing piece is the ring -type, and the centre bore of balancing piece is used for supplying the pivot pass, and two terminal surfaces of balancing piece are the plane. The utility model discloses a balancing piece, because this balancing piece is the ring -type, the centre bore of this balancing piece supplies the pivot to pass, and two terminal surfaces of balancing piece are the plane, and then the balancing piece is installed behind the rotor, and the terminal surface of having avoided balancing piece and rotor forms the stair structure who distributes along rotor circumference, has reduced the motor in the friction of rotatory in -process with the air to reduce the windage of motor at rotatory in -process, and then reduced the windage loss of motor at rotatory in -process, improved the motor performance. The utility model discloses a motor has above -mentioned balancing piece.
Description
Technical field
The utility model relates to technical field of motor manufacture, more particularly, relates to a kind of balance weight and motor.
Background technology
At present, in order to ensure the dynamic balancing of dynamic compressor in operation process, balance weight is set at rotor tip.Particularly, as depicted in figs. 1 and 2, the curved bulk of balance weight 11 and along periphery of rotor extend, balance weight 11 is riveted on the end of rotor.
Due to the curved bulk of balance weight 11, and the end face of balance weight 11 has ledge structure, then along the end face forming station stage structure of periphery of rotor balance weight 11 and rotor, cause motor larger with the friction of air in rotary course, produce larger windage, make windage loss comparatively large, the performance of motor is lower.
In sum, how reducing the windage of motor in rotary course and damage, to improve motor performance, is current those skilled in the art's problem demanding prompt solution.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of balance weight, damages, improve motor performance to reduce the windage of motor in rotary course.Another object of the present utility model is to provide a kind of motor with above-mentioned balance weight.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of balance weight, described balance weight is eccentric structure, and described balance weight in the form of a ring, and the centre bore of described balance weight is used for passing for rotating shaft, and two end faces of described balance weight are plane.
Preferably, the peripheral side of described balance weight is the face of cylinder.
Preferably, described balance weight is provided with the lightening hole forming described eccentric structure.
Preferably, the number of described lightening hole is at least two, and described lightening hole is all positioned at the side of the axis of described balance weight.
Preferably, described lightening hole is located on the end face of described balance weight.
Preferably, described lightening hole is circular hole, slot or arcuate socket, and described arcuate socket extends along the circumference of described balance weight.
Preferably, described lightening hole is blind hole.
Preferably, described balance weight is provided with the installing hole for being connected with rotor.
Preferably, described installing hole is riveted holes, and the number of described installing hole is at least two.
Preferably, described balance weight is potassium steel block or brass ingot.
Based on the above-mentioned balance weight provided, the utility model additionally provides a kind of motor, and this motor comprises: rotor, is located at the balance weight of described rotor; Wherein, described balance weight is the balance weight described in above-mentioned any one.
The balance weight that the utility model provides, due to this balance weight in the form of a ring, and the centre bore of this balance weight passes for rotating shaft, and two of balance weight end faces are plane, then after balance weight is installed on rotor, the end face avoiding balance weight and rotor forms the ledge structure distributed along periphery of rotor, reduce motor in rotary course with the friction of air, thus reduce the windage of motor in rotary course, and then reduce the windage loss of motor in rotary course, improve motor performance.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The front view of the balance weight that Fig. 1 provides for prior art;
Fig. 2 is that the A-A of Fig. 1 is to cutaway view;
A kind of structural representation of the balance weight that Fig. 3 provides for the utility model embodiment;
Fig. 4 is the structural representation in another direction of balance weight in Fig. 3;
The another kind of structural representation of the balance weight that Fig. 5 provides for the utility model embodiment;
The another kind of structural representation of the balance weight that Fig. 6 provides for the utility model embodiment;
The assembling schematic diagram of the balance weight that Fig. 7 provides for the utility model embodiment and rotor.
In upper Fig. 1-Fig. 7:
11 be balance weight, 21 be balance weight, 211 be lightening hole, 212 for hole, 22 centered by installing hole, 213 be rotor.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in fig. 3 to 7, the balance weight that the utility model embodiment provides is eccentric structure, and balance weight in the form of a ring, and the centre bore 213 of balance weight is for passing for rotating shaft, and two end faces of balance weight are plane.Be understandable that, balance weight is eccentric structure, refers to that the center of gravity of balance weight does not overlap with the axis of balance weight; Two end faces of balance weight are plane, namely show that this end face is without ledge structure.
The balance weight that the utility model embodiment provides, due to this balance weight in the form of a ring, the centre bore 213 of this balance weight passes for rotating shaft, and two of this balance weight end faces are plane, after then balance weight is installed on rotor 22, the end face avoiding balance weight and rotor 22 forms the ledge structure distributed along rotor 22 circumference, reduce motor in rotary course with the friction of air, thus reduce the windage of motor in rotary course, and then reduce the windage loss of motor in rotary course, improve motor performance.
Further, the peripheral side of above-mentioned balance weight is the face of cylinder, namely shows that the peripheral side of this balance weight is without ledge structure.Like this, reduce the windage produced because of balance weight itself, further reduce windage loss.Certainly, the peripheral side also can selecting balance weight is elliptic cylinder or prismatic surface etc., is not limited to above-mentioned situation.
Above-mentioned balance weight forms eccentric structure by hollow-core construction or hole, and wherein, hollow-core construction realizes comparatively complicated.For the ease of producing and manufacturing, prioritizing selection balance weight is provided with the lightening hole 211 forming eccentric structure.
In above-mentioned balance weight, form eccentric structure by lightening hole 211, the number of lightening hole 211 is for can be one, two, more than three or three, and concrete needs are according to the number of the size determination lightening hole 211 of loss of weight amount, lightening hole 211.When the number of lightening hole 211 is at least two, for the ease of forming eccentric structure, prioritizing selection lightening hole 211 is all positioned at the side of the axis of balance weight.Certainly, also a part of lightening hole 211 can be selected to be positioned at the side of the axis of balance weight, another part lightening hole 211 is positioned at the opposite side of the axis of balance weight, require that the subtracting of axis both sides of balance weight varies in weight, just can increase the complex structure degree of manufacture difficulty and balance weight like this, production efficiency is lower.Particularly, the subtracting of axis both sides of balance weight varies in weight, and has various ways to realize, and the number of the lightening hole 211 of the axis both sides of such as balance weight is different and size is identical, or number is identical and vary in size.
In order to reduce the windage because balance weight produces further, prioritizing selection lightening hole 211 is located on the end face of balance weight.Certainly, lightening hole 211 also can be selected to be located in the peripheral side of balance weight, to be not limited to above-mentioned situation.
For the shape of lightening hole 211, can design according to actual needs.Such as lightening hole 211 is circular hole, slot, square opening, arcuate socket or other erose holes, and when lightening hole 211 is arcuate socket, conveniently arrange, this arcuate socket of prioritizing selection extends along the circumference of balance weight.Conveniently produce and manufacture, prioritizing selection lightening hole 211 is circular hole, slot or arcuate socket.When the number of lightening hole 211 is one, prioritizing selection lightening hole 211 is arcuate socket, and this arcuate socket extends along the circumference of balance weight, as shown in Figure 3.For the central angle of arcuate socket, can design according to actual needs, such as, the central angle of arcuate socket is 90 °, 120 ° or 180 ° etc., and the utility model embodiment does not limit this.Like this, be convenient to meet loss of weight demand, thus be convenient to realize eccentric structure.When the number of lightening hole 211 is at least two, prioritizing selection lightening hole 211 is circular hole, slot or square opening.As shown in Figure 5, lightening hole 211 is circular hole; As shown in Figure 6, lightening hole 211 is slot.
Preferably, in above-mentioned balance weight, lightening hole 211 is blind hole, as shown in Fig. 3, Fig. 4 and Fig. 7.Like this, effectively can ensure the intensity of balance weight, also further reduce the windage loss because of balance weight self production.Further, lightening hole 211 is only located on an end face of balance weight, and during installation, this lightening hole 211 is positioned at balance weight one end away from rotor 22.Certainly, lightening hole 211 also can be selected to be located on two end faces of balance weight, and the lightening hole 211 on two end faces can be relative, also can shift to install, and the utility model embodiment does not limit this.In above-mentioned balance weight, lightening hole 211 also can be selected for through hole.
For the ease of installing balance weight, prioritizing selection balance weight is provided with the installing hole 212 for being connected with rotor 22.Like this, the bonding strength of balance weight and rotor 22 is also improved.Certainly, balance weight also can be selected by centre bore and rotating shaft interference fit, realize the indirectly fixing of balance weight and rotor 22.
When lightening hole 211 is arranged with installing hole 212 simultaneously, prioritizing selection installing hole 212 and lightening hole 211 lay respectively at the both sides of the axis of balance weight.When the number of lightening hole 211 is few, and when the position that takies of lightening hole 211 is less, at least one installing hole 212 and lightening hole 211 also can be selected to be positioned at the side of the axis of balance weight.
Balance weight needs with rotor 22 High Rotation Speed, and in order to improve connection reliability, prioritizing selection installing hole 212 is riveted holes.Like this, by rivet interlacement balance weight and rotor 22, effectively connection reliability can be improved.In order to ensure bonding strength, the number of prioritizing selection installing hole 212 is at least two.Preferably, the number of installing hole 212 is two, also can select other numbers according to actual needs.Certainly, installing hole 212 also can be selected for screwed hole, by screw or Stud connection balance weight and rotor 22.
Above-mentioned balance weight, can be bloom and also can be copper billet.In order to improve reliability, prioritizing selection balance weight is potassium steel block or brass ingot.Like this, the weight proportion that whole balance weight removes is less, thus improves reliability.In actual application, conveniently make, prioritizing selection balance weight is by formation of once casting, and namely balance weight is for watering ingot bar.
Based on the balance weight that above-described embodiment provides, the utility model embodiment still provides a kind of motor, and this motor comprises: rotor 22, is located at the balance weight 21 of rotor 22; Wherein, balance weight 21 is the balance weight described in above-described embodiment.
The balance weight provided due to above-described embodiment has above-mentioned technique effect, and the motor that the utility model embodiment provides has above-mentioned balance weight, then the motor that the utility model embodiment provides also has corresponding technique effect, repeats no more herein.
In above-mentioned motor, balance weight 21 can be one, is only located on an end face of rotor 22; Balance weight 21 also can be two, is located at the two ends of rotor 22 respectively, specifically selects according to actual needs.It should be noted that, the two ends of rotor 22 are provided with rotor aluminum ring, and this balance weight 21 is connected with rotor aluminum ring.
In above-mentioned motor, when balance weight 21 is provided with installing hole 212, rotor 22 is provided with the connecting hole relative with installing hole 212; Above-mentioned motor also comprises: the connector being connected balance weight 21 and rotor 22 by connecting hole with installing hole 212.Further, connector is rivet, and connecting hole and installing hole 212 are riveted holes, like this, effectively can improve the connection reliability of balance weight 21 and rotor 22.
In above-mentioned motor, the overall diameter of balance weight 21 can be less than, be equal to, or greater than the overall diameter of rotor 22.In order to reduce windage, the overall diameter of prioritizing selection balance weight 21 can be less than or equal to the overall diameter of rotor 22.
To the above-mentioned explanation of the disclosed embodiments, those skilled in the art are realized or uses the utility model.To be apparent for a person skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (11)
1. a balance weight, is characterized in that, described balance weight is eccentric structure, and described balance weight in the form of a ring, and the centre bore (213) of described balance weight is for passing for rotating shaft, and two end faces of described balance weight are plane.
2. balance weight according to claim 1, is characterized in that, the peripheral side of described balance weight is the face of cylinder.
3. balance weight according to claim 1 and 2, is characterized in that, described balance weight is provided with the lightening hole (211) forming described eccentric structure.
4. balance weight according to claim 3, is characterized in that, the number of described lightening hole (211) is at least two, and described lightening hole (211) is all positioned at the side of the axis of described balance weight.
5. balance weight according to claim 3, is characterized in that, described lightening hole (211) is located on the end face of described balance weight.
6. balance weight according to claim 3, is characterized in that, described lightening hole (211) is circular hole, slot or arcuate socket, and described arcuate socket extends along the circumference of described balance weight.
7. balance weight according to claim 3, is characterized in that, described lightening hole (211) is blind hole.
8. balance weight according to claim 1, is characterized in that, described balance weight is provided with the installing hole (212) for being connected with rotor (22).
9. balance weight according to claim 8, is characterized in that, described installing hole (212) is riveted holes, and the number of described installing hole (212) is at least two.
10. balance weight according to claim 1, is characterized in that, described balance weight is potassium steel block or brass ingot.
11. 1 kinds of motors, comprising: rotor (22), are located at the balance weight (21) of described rotor (22); It is characterized in that, described balance weight (21) is for as the balance weight in claim 1-10 as described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520756998.8U CN205017162U (en) | 2015-09-25 | 2015-09-25 | Balancing piece and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520756998.8U CN205017162U (en) | 2015-09-25 | 2015-09-25 | Balancing piece and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205017162U true CN205017162U (en) | 2016-02-03 |
Family
ID=55215744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520756998.8U Expired - Fee Related CN205017162U (en) | 2015-09-25 | 2015-09-25 | Balancing piece and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205017162U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196445A (en) * | 2017-06-13 | 2017-09-22 | 新乡市振英机械设备有限公司 | A kind of embedded vibrating motor of balancing weight |
| CN110880848A (en) * | 2018-09-05 | 2020-03-13 | 保时捷股份公司 | Method for balancing a rotor of an electric machine |
-
2015
- 2015-09-25 CN CN201520756998.8U patent/CN205017162U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196445A (en) * | 2017-06-13 | 2017-09-22 | 新乡市振英机械设备有限公司 | A kind of embedded vibrating motor of balancing weight |
| CN110880848A (en) * | 2018-09-05 | 2020-03-13 | 保时捷股份公司 | Method for balancing a rotor of an electric machine |
| US11121611B2 (en) | 2018-09-05 | 2021-09-14 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for balancing rotors of electrical machines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20210925 |