CN205051538U - Electric motor rotor moves balancing weight structure - Google Patents
Electric motor rotor moves balancing weight structure Download PDFInfo
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- CN205051538U CN205051538U CN201520838263.XU CN201520838263U CN205051538U CN 205051538 U CN205051538 U CN 205051538U CN 201520838263 U CN201520838263 U CN 201520838263U CN 205051538 U CN205051538 U CN 205051538U
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- rotor
- electric motor
- balancing weight
- weight
- dynamic balance
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses an electric motor rotor moves balancing weight structure, it includes rotor body and fixed connection's main shaft with it, tip an organic whole of rotor body sets up a plurality of counter weight component. The electric motor rotor moves balancing weight structure of this structure adopts the mode of predetermineeing the counter weight component with rotor an organic whole to the adoption subtracts heavy method rectifies amount of unbalance, has firstly strengthened electric motor rotor's rigidity, can overcome the not hard up vibration that brings of counter weight effectively, guarantees the even running of motor, secondly is convenient for rectify the accurate control that subtracts weight, cooperates accurate experimental location, makes the amount of unbalance convergence of rectifying the back rotor in zero.
Description
Technical field
The utility model relates to mechanical dynamic balancing technique field, is specifically related to a kind of rotor dynamic balance weight structure.
Background technology
For high rotating speed rotor, even if there is very little eccentric throw, also can cause very large centrifugal force, cause the vibration of motor, produce noise, accelerate the wearing and tearing of bearing, cause rotor part high-cycle fatigue to destroy, reduce the useful life of motor.Therefore, the dynamic balancing of rotor in the manufacture process of motor in occupation of very important status.For unbalanced correction form, general employing twists the method such as mass screw, balancing block, welding weld tabs, boring, grinding, turning.Rotor for High Rotation Speed is difficult to by twisting mass screw the precision reaching needs, and the method for welding can have a negative impact to rotor, and the method removing material has irreversibility, also has a certain impact to the intensity of rotor.Secondly, the current dynamic balancing measurement to rotor and correction are carried out mostly under normal temperature state, rotor is usual long-play at relatively high temperatures then, and the change of temperature often makes rotor produce new imbalance, especially rotating speed is at the high-speed electric expreess locomotive of more than 6000rpm, even if small amount of unbalance also will cause uttering long and high-pitched sounds of motor, and to the running quality of motor with bring comparatively serious adverse effect useful life.
CN202145607U discloses a kind of dynamic balancer of motor rotor, rotor arranges rotor helmet, and arrange several balancing holes on rotor helmet, balancing hole is provided with the balance weight that plastic solid thing is made, to realize the balance of rotor, and be convenient to the installation and removal of balance weight.But this structure one needs to increase rotor helmet, easily affects the cramped construction of rotor and the tight type of connection, increase technology difficulty; Two is be difficult to ensure that balance weight is connected with the firm of rotor, affects dynamically balanced reliability in rotor operation process; Three is when mounted, and the quality first need measuring the appropriate section of rotor kicks the beam relatively, then arranges balancing hole in the appropriate section of rotor helmet; Need when correcting dynamic balancing first the dismounting of rotor helmet then to be installed balance weight again, and then row is installed, easily cause the change of Rotor dynamic-balancing experiment anterior-posterior balance state, must test and adjust, complex process, production efficiency is low, and quality is difficult to Reliable guarantee.
Utility model content
Problem to be solved in the utility model is to provide a kind of rotor dynamic balance weight structure, and it is simple that this structure fabrication is convenient, balance revises technique, and dynamic balance accuracy is high.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of rotor dynamic balance weight structure, comprises rotor body and the main shaft be fixedly connected with it, and the end of described rotor body is wholely set several weighted.
Further, described weighted is arranged along rotor body excircle position.
Further, described weighted is even number, and is symmetrical arranged relative to rotor body axle center between two.
Further, described weighted is column structure.
Further, described weighted is annular sector balancing weight.
Further, described weighted comprises counterweight post and the annular sector balancing weight of column structure, and the counterweight post of described column structure and annular sector balancing weight interval are arranged.
The beneficial effects of the utility model are:
1) rotor dynamic balance weight structure of the present utility model adopts the mode presetting weighted with rotor one, and adopt weight reduction to correct amount of unbalance, one is the rigidity enhancing rotor, effectively can overcome counterweight and loosen the vibration brought, ensure the even running of motor, two is the accurate control being convenient to correct loss of weight amount, and coordinate trial position accurately, after making correction, the amount of unbalance of rotor levels off to zero.
2) counterweight component is set to annular sector structure, not only increase the area of dissipation of rotor, improve its heat dispersion, and under the influence of centrifugal force, the effect of similar flabellum can be played, motor stator, rotor and magnetic gap position are more effectively cooled, avoids producing too high intensification, reduce the operation troubles of motor.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described:
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the structural representation of the utility model embodiment two;
Fig. 4 is the end view of Fig. 3;
Fig. 5 is the structural representation of the utility model embodiment three;
Fig. 6 is the end view of Fig. 3;
Fig. 7 is the end view of another structure in Fig. 3.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment one
As shown in Figure 1 and Figure 2, rotor comprises rotor body 1 and main shaft 5, and the two is fixedly connected with and can not loosens.Described rotor body 1 comprises magnetic pole 2, the two ends of magnetic pole 2 are provided with end clamp plate 3, rotor dynamic balance weight structure of the present utility model is several weighted of arranged outside at end clamp plate 3, weighted and end clamp plate are cast or are welded as a whole structure, the rigidity of rotor after dynamic balancing can be ensured, realize once balance and forever use.Described weighted can adopt counterweight post 4a(cross section can be circular, oval or polygon), its diameter and length can according to motor model and test correction experiences, it is smaller that size designs as far as possible, to alleviate the overall weight of rotor and motor, counterweight post 4a answers end clamp plate 3 excircle position to arrange, be convenient to obtain larger levelling effect with less correction adjustment quality, certainly relatively can alleviate weight being set and and then alleviating the weight of rotor entirety of balance columns 4a because it has larger centrifugal force.Counterweight post 4a should be evenly arranged along the concentric circles of side pressure lid 3 circumferential location, and be preferably the even numbers such as 4,6,8,10,12, should be more according to the quantity that the size of root diameter is arranged, be convenient to take when correcting leveling, and should be symmetrical arranged relative to the axle center of side pressure lid 3 between two.
This rotor dynamic balance weight structure in use, first can mark trial correction reference phase in rotor tip setting, and input dynamic balancing control system; Then rotor to be tested is placed in the test station of the automatic positioning balance machine with digital display function, starting device carries out dynamic balance test, after test obtains phase place to be corrected and adjustment quality, equipment will stop automatically, and on display panel, show phase place to be corrected and adjustment quality; Take off the rotor after test, according to step 2) show phase place to be corrected and adjustment quality, weight reduction is adopted to calculate loss of weight length (this degree also directly calculates by the control system of parameters input by dynamic balancing equipment and shows certainly) by the size of described adjustment quality and weighted and proportion, by to cut or the weighted being positioned at phase place to be corrected is cut down in grinding or namely 2 weighted of closing on phase place to be corrected complete rotor dynamic balancing correction operation, certainly also sampling observation testing authentication can be carried out to calibration result.Owing to carrying out the reduction of counterweight component in strict accordance with the phase place of loss of weight and quality, so the method correct after rotor unbalance value can level off to zero.
Embodiment two
Referring to Fig. 3, Fig. 4, rotor dynamic balance weight structure of the present utility model is substantially identical with embodiment one, difference is only: weighted is annular sector balancing weight 4b, its size can correct empirical data design according to motor model and test, it is smaller that size designs as far as possible, to alleviate the overall weight of rotor and motor.Adopt this structure, not only can add trochiterian area of dissipation, simultaneously when rotor high-speed rotates due to the effect of centrifugal force, fan-shaped balancing weight 4b is not only for dynamic balance calibration, and the function of approximate flabellum can be played, motor stator and magnetic gap position are cooled, receives beyond thought effect.
Embodiment three
As shown in Fig. 5, Fig. 6, Fig. 7, rotor dynamic balance weight structure of the present utility model is same as embodiment two substantially, difference to be between each fan-shaped balancing weight 4b uniformly to arrange 1-2 counterweight post 4c, the position that described counterweight post 4c can be arranged near both sides between annular sector balancing weight respectively arranges 1, also the centre position increase between annular sector balancing weight can arrange 1 counterweight post 4c.Test timing is carried out in this structure of employing, round counterweight post 4c can be cut down in advance, also the fan-shaped balancing weight 4b of reduction can be being gone again after all being eliminated by counterweight post 4c when amount of unbalance is larger, therefore there is larger loss of weight correcting range, and counterweight post 4c can reduce wind-dryness between annular sector balancing weight when rotated, be beneficial to noise control during electric machine rotation.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, other amendments that those of ordinary skill in the art make the technical solution of the utility model or equivalently to replace, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.
Claims (6)
1. a rotor dynamic balance weight structure, it comprises rotor body and the main shaft be fixedly connected with it, it is characterized in that: the end of described rotor body is wholely set several weighted.
2. rotor dynamic balance weight structure as claimed in claim 1, is characterized in that: described weighted is arranged along rotor body excircle position.
3. rotor dynamic balance weight structure as claimed in claim 2, is characterized in that: described weighted is even number, and is symmetrical arranged relative to rotor body axle center between two.
4. rotor dynamic balance weight structure as claimed in claim 3, is characterized in that: described weighted is column structure.
5. rotor dynamic balance weight structure as claimed in claim 3, is characterized in that: described weighted is annular sector balancing weight.
6. rotor dynamic balance weight structure as claimed in claim 3, is characterized in that: described weighted comprises counterweight post and the annular sector balancing weight of column structure, and the counterweight post of described column structure and annular sector balancing weight interval are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520838263.XU CN205051538U (en) | 2015-10-27 | 2015-10-27 | Electric motor rotor moves balancing weight structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520838263.XU CN205051538U (en) | 2015-10-27 | 2015-10-27 | Electric motor rotor moves balancing weight structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205051538U true CN205051538U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520838263.XU Active CN205051538U (en) | 2015-10-27 | 2015-10-27 | Electric motor rotor moves balancing weight structure |
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| CN (1) | CN205051538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207428A (en) * | 2015-10-27 | 2015-12-30 | 南阳微特防爆电机有限公司 | Dynamic balancing weight structure and dynamic balancing method for motor rotor as well as test device |
| TWI641204B (en) * | 2017-06-03 | 2018-11-11 | 建準電機工業股份有限公司 | Counterweight rotor |
-
2015
- 2015-10-27 CN CN201520838263.XU patent/CN205051538U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207428A (en) * | 2015-10-27 | 2015-12-30 | 南阳微特防爆电机有限公司 | Dynamic balancing weight structure and dynamic balancing method for motor rotor as well as test device |
| CN105207428B (en) * | 2015-10-27 | 2018-04-13 | 南阳微特防爆电机有限公司 | Rotor dynamic balance weight structure and dynamic balance method and experimental rig |
| TWI641204B (en) * | 2017-06-03 | 2018-11-11 | 建準電機工業股份有限公司 | Counterweight rotor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |