CN208862682U - A kind of rotor - Google Patents
A kind of rotor Download PDFInfo
- Publication number
- CN208862682U CN208862682U CN201821779478.9U CN201821779478U CN208862682U CN 208862682 U CN208862682 U CN 208862682U CN 201821779478 U CN201821779478 U CN 201821779478U CN 208862682 U CN208862682 U CN 208862682U
- Authority
- CN
- China
- Prior art keywords
- iron
- rotor core
- balance ring
- rotor
- magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model discloses a kind of rotors, it include a central spindle, a rotor core, two bearings and two iron-based balance rings, the rotor core, bearing and iron-based balance ring are set in the central spindle, several magnet are adhesively fixed in the rotor core, the bearing is respectively arranged on two sides of the rotor core and far from the rotor core, the iron-based balance ring is respectively arranged on two sides of the rotor core and is bonded with the rotor core, and the size of the iron-based balance ring does not cover the magnet.It replaces existing non-magnetic balance ring using iron-based balance ring, low manufacture cost and can effectively realize dynamic balancing；Simultaneously, since the size of iron-based balance ring does not cover magnet, i.e., iron-based balance ring is not contacted with magnet, when which is installed on brushless motor use, iron-based balance ring will not influence the main flux between the rotor and stator, so that motor good operating stability.
Description
Technical field
The utility model relates to brushless motor technical field more particularly to a kind of rotors.
Background technique
When rotor rotates, the centrifugal force generated because mass center deviates axis of rotation due to each micro- section of the factor all perpendicular to
Axis of rotation can synthesize centrifugal force system by the synthesis of power a small number of concentrated forces, and direction is still perpendicular to axis.Generally
It says, at least could represent original centrifugal force system with two concentrated forces being respectively acting on two cross sections, if the two
Concentrated force just forms couple, then original amount of unbalance can not be discovered and measure when rotor does not rotate；When rotation, power
It is even just to form Horizonal Disturbing and the vibration of rotor is caused to make rotor by unnecessary so as to cause the oscillation crosswise of rotor
Dynamic loading, this be unfavorable for rotor normal operation.
Therefore, in motor manufacturing or maintenance process, motor dynamic balancing is one of very important process, most of rotors
It need to carry out dynamic balancing.Currently, the duplicate removal mechanism of common brushless dc rotating machine rotor is the balance ring of non-magnetic material,
Balance ring is respectively pressed into rotor both ends by the balance ring as made of copper-based, stainless steel etc., and test rotor-support-foundation system is unbalanced
Behind position and size, make deduplication operation in balance ring, reach the accuracy class of permission, the density of these balance rings is higher
And it is non-magnetic, will not influence the main flux of electric system, motor can work normally, still, copper-based, stainless steel material cost compared with
It is high and need more complex production technology, such as machine finishing, powder compacting sintering, casting, die casting, make entire rotor system
Manufacturing cost of uniting is higher.
In consideration of it, needing to carry out certain improvement to the duplicate removal device of existing rotor, it is low to obtain a kind of manufacturing cost
And it can effectively carry out dynamically balanced rotor.
Utility model content
It is low the technical problem to be solved by the utility model is to provide a kind of manufacturing cost and can effectively carry out dynamic balancing
Rotor.
In order to solve the above-mentioned technical problem, the utility model discloses following technical solutions.A kind of rotor includes
One central spindle, a rotor core, two bearings and two iron-based balance rings, the rotor core, bearing and iron-based balance ring are set in
In the central spindle, several magnet are adhesively fixed in the rotor core, the bearing is respectively arranged on the two of the rotor core
Side and far from the rotor core, the iron-based balance ring be respectively arranged on two sides of the rotor core and with the rotor
Iron core fitting, and the size of the iron-based balance ring does not cover the magnet.
Its further technical solution are as follows: interval, which outwardly protrudes, on the periphery of the iron-based balance ring is formed with several salient points,
The salient point is pressed on the end face of the magnet.
Its further technical solution are as follows: four blocks of magnet are fixed in the rotor core, in the iron-based balance ring
Eight salient points are formed with, press two salient points on each magnet.
Its further technical solution are as follows: the contact area of each magnet and the salient point is the total of the end face of the magnet
The 1/8~1/3 of area.
Its further technical solution are as follows: a non-magnetic pressure is also folded between the rotor core and the iron-based balance ring
The radius size of piece, the non-magnetic tabletting is matched with the rotor core.
Its further technical solution are as follows: the non-magnetic tabletting is a bakelite piece, a stainless steel tabletting or a sheet rubber.
Its further technical solution an are as follows: side of the rotor core is further fixed on a cooling wind blade.
The advantageous effects of the utility model are: the rotor include a central spindle, a rotor core, two bearings and
Two iron-based balance rings, rotor core, bearing and iron-based balance ring are set in central spindle, are adhesively fixed in rotor core several
Magnet, bearing are respectively arranged on two sides of rotor core and far from rotor cores, and iron-based balance ring is respectively arranged on rotor core
It two sides and is bonded with rotor core, and the size of iron-based balance ring does not cover magnet.It is replaced existing using iron-based balance ring
Non-magnetic balance ring, low manufacture cost and can effectively realize dynamic balancing；Simultaneously as the size of iron-based balance ring does not cover magnetic
Iron, i.e., iron-based balance ring are not contacted with magnet, which is installed on brushless motor in use, iron-based balance ring will not shadow
The main flux between the rotor and stator is rung, so that motor good operating stability.
Detailed description of the invention
Fig. 1 is the structure sectional view of an embodiment of the present invention；
Fig. 2 is the left view of an embodiment of the present invention；
Fig. 3 is the iron-based gimbals structure enlarged drawing of an embodiment of the present invention；
Fig. 4 is the structure sectional view that non-magnetic tabletting is equipped in an embodiment of the present invention；
Fig. 5 is the structure sectional view of another embodiment of the utility model；
Fig. 6 is the left view of another embodiment of the utility model；
Fig. 7 is the iron-based gimbals structure enlarged drawing of another embodiment of the utility model.
Specific embodiment
In order to more fully understand the technology contents of the utility model, below with reference to schematic diagram to the technical side of the utility model
Case is further described and illustrates, but not limited to this.
As shown in Figures 1 to 7, in the present invention, which includes a central spindle 1, a rotor core 2, two
Bearing 4 and two iron-based balance rings 5, rotor core 2, bearing 4 and iron-based balance ring 5 are set in central spindle 1, in rotor core 2
Several magnet 3 are adhesively fixed with, bearing 4 is respectively arranged on two sides of rotor core 2 and far from rotor core 2, iron-based balance ring 5
It is respectively arranged on two sides of rotor core 2 and is bonded with rotor core 2, and the size of iron-based balance ring 5 does not cover magnet 3.
In the utility model, which is substituted existing non-magnetic balance ring, wherein iron-based balance ring 5 is logical
It is stacked frequently with Dies ' Blanking or die casting forms, compared to balance ring made of copper-based, stainless steel material, manufacturing process is more
Simply, manufacturing cost is lower.Meanwhile so that the size of iron-based balance ring 5 is not covered magnet 3 by structure design, in this way, the motor
Rotor application in brushless motor stator in use, iron-based balance ring 5 will not influence the main magnetic between the rotor and stator
It is logical, and can effectively realize motor dynamic balancing, so that motor the operation is stable.
In the present embodiment, as shown in Figures 1 to 3, iron-based balance ring 5 is annular in shape, and radius is less than magnet 3 apart from central spindle
The distance of 1 central point causes leakage field in this way, it will not cover magnet 3 when iron-based balance ring 5 is installed on central spindle 1.
In another embodiment, as shown in Figures 5 to 7, four blocks of magnet 3, iron-based balance ring 5 are fixed in rotor core 2
Interval, which outwardly protrudes, on periphery is formed with eight salient points 50, and two salient points 50, each magnet 3 and salient point 50 are pressed on each magnet 3
Contact area be the magnet 3 end face the gross area 1/8~1/3.In this way, even if iron-based balance ring 5 is with magnet 3, there are one
Fixed contact, but since contact area is smaller, iron-based balance ring 5 does not influence the main flux between rotor and stator.
Certainly, in some other embodiment, more or fewer magnet 3, correspondingly, iron are fixed in rotor core 2
Interval, which outwardly protrudes, on the periphery of base balance ring 5 is formed with several salient points 50, and salient point 50 is pressed on the end face of magnet 3, in general,
The contact area of each magnet 3 and salient point 50 is the 1/8~1/3 of the gross area of the end face of the magnet 3.
In addition, the motor for being equipped with the rotor may be applied to certain environment for being easy to produce the magnetisable materials such as iron filings
In, such as angle grinder, when operation, being ground iron workpiece has iron filings generation, these iron filings may be adsorbed onto the magnet 3 of rotor
On, motor is influenced for a long time to be worked normally, in order to avoid the appearance of this situation, in the present embodiment, and as shown in Figure 1 and Figure 4, rotor
A non-magnetic tabletting 7, the radius size and rotor core 2 of non-magnetic tabletting 7 are also folded between iron core 2 and iron-based balance ring 5
Matching.In this way, tabletting can cover in the magnet 3 in rotor core 2, so that the magnetisable material in environment is difficult to contact with magnet 3
And be adsorbed, avoiding, which influences motor, runs well.It certainly, can nothing in some environment that will not generate the magnetisable materials such as iron filings
It need to the non-magnetic tabletting 7 of sandwiched between rotor core 2 and iron-based balance ring 5.
Normally, non-magnetic tabletting 7 is a bakelite piece, a stainless steel tabletting or a sheet rubber, bakelite piece, stainless steel pressure
The magnetic conductions ability such as piece and sheet rubber is weak, the magnet 3 in rotor core 2 will not be caused to generate leakage field, while can effectively prevent the external world
Magnetisable material contacted with magnet 3 and cause leakage field, ensure that the normal operation of motor.
In addition, temperature can be increased constantly when rotor runs at high speed, long-time high temperature will cause the damage of motor,
In order to facilitate heat dissipation, as shown in Figure 1 and Figure 5, a side of rotor core 2 is further fixed on a cooling wind blade 6, cooling wind blade 6 with
The rotation of central spindle 1 and rotate, so that ground is that rotor and stator coil radiate.
In the embodiment of the utility model, which, which is usually assemblied in brushless motor, is used, and uses iron-based balance
Ring 5 replaces existing non-magnetic balance ring, and the manufacturing cost for significantly reducing balance ring is low；Meanwhile the ruler of iron-based balance ring 5
Very little not cover magnet 3, i.e., iron-based balance ring 5 is not contacted with magnet 3, which is installed on brushless motor in use, iron
Base balance ring 5 will not influence the main flux between the rotor and stator so that motor good operating stability, by material and
The cooperation of structure changes, so that the iron-based balance ring 5 is to realize the dynamic balancing of electronics rotor, and can guarantee the stabilization work of motor
Make, meets the demand of production.
It is that above-mentioned preferred embodiment should be regarded as application scheme embodiment for example, all with application scheme thunder
Same, approximate or technology deduction, replacement, improvement for making based on this etc., are regarded as the protection scope of this patent.
Claims (7)
1. a kind of rotor, which is characterized in that include a central spindle, a rotor core, two bearings and two iron-based balance rings, institute
It states rotor core, bearing and iron-based balance ring to be set in the central spindle, several magnetic is adhesively fixed in the rotor core
Iron, the bearing are respectively arranged on two sides of the rotor core and far from the rotor core, the iron-based balance ring difference
Set on the rotor core two sides and be bonded with the rotor core, and the size of the iron-based balance ring do not cover it is described
Magnet.
2. rotor according to claim 1, which is characterized in that be spaced convex on the periphery of the iron-based balance ring
It is formed with several salient points out, the salient point is pressed on the end face of the magnet.
3. rotor according to claim 2, which is characterized in that be fixed with four blocks of magnetic in the rotor core
Iron is formed with eight salient points in the iron-based balance ring, presses two salient points on each magnet.
4. rotor according to claim 2 or 3, which is characterized in that the contact of each magnet and the salient point
Area is the 1/8~1/3 of the gross area of the end face of the magnet.
5. rotor according to claim 1 or 2, which is characterized in that the rotor core and the iron-based balance ring
Between be also folded with a non-magnetic tabletting, the radius size of the non-magnetic tabletting is matched with the rotor core.
6. rotor according to claim 5, which is characterized in that the non-magnetic tabletting is a bakelite piece, one stainless
Steel tabletting or a sheet rubber.
7. rotor according to claim 1 or 2, which is characterized in that a side of the rotor core is further fixed on
One cooling wind blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779478.9U CN208862682U (en) | 2018-10-30 | 2018-10-30 | A kind of rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779478.9U CN208862682U (en) | 2018-10-30 | 2018-10-30 | A kind of rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208862682U true CN208862682U (en) | 2019-05-14 |
Family
ID=66421872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821779478.9U Active CN208862682U (en) | 2018-10-30 | 2018-10-30 | A kind of rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208862682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109167470A (en) * | 2018-10-30 | 2019-01-08 | 东昌电机(深圳)有限公司 | A kind of rotor |
-
2018
- 2018-10-30 CN CN201821779478.9U patent/CN208862682U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109167470A (en) * | 2018-10-30 | 2019-01-08 | 东昌电机(深圳)有限公司 | A kind of rotor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | Optimization design of rotor structure for high speed permanent magnet machines | |
| CN109515755A (en) | A kind of five degree of freedom magnetic suspension control moment gyro of single framework | |
| CN201038850Y (en) | Torque motor with limited rotation angle | |
| CN106015331A (en) | Low-power-consumption permanent-magnet bias five-degree-of-freedom integrated magnetic bearing | |
| CN110048575A (en) | A kind of composite construction p-m rotor suitable for high-speed permanent magnetic synchronous motor | |
| CN208862682U (en) | A kind of rotor | |
| CN207652155U (en) | Rotor assembly on disc type electric machine | |
| CN204858923U (en) | A directly drive formula permanent magnetism AC servo motor for forging press | |
| CN202183652U (en) | Low wind resistance magnetic flux switching motor | |
| CN106059252A (en) | Novel composite double-disc magnetic coupler | |
| CN102545424A (en) | Rotor structure of alternating current servo motor | |
| CN109167470A (en) | A kind of rotor | |
| CN202340171U (en) | Power generation device | |
| CN103595215A (en) | Axial magnetic field permanent magnet brushless direct current motor | |
| CN203301270U (en) | Rotor structure and frequency conversion speed-regulating motor equipped with same | |
| CN203589994U (en) | Axial magnetic field permanent magnet brushless DC motor | |
| CN103337921A (en) | Rotor structure for frequency-variable speed-regulating motor and frequency-variable speed-regulating motor with rotor structure | |
| CN208424239U (en) | A kind of novel magnetically levitated high-speed motor | |
| CN209562338U (en) | Motor | |
| CN102170205A (en) | Efficient permanent magnet generator with no-iron core and multiple stator | |
| CN206023394U (en) | Inner rotor type motor | |
| CN206620035U (en) | Multistage PCB permanent magnetic brushless and plant equipment | |
| CN203193418U (en) | Motor rotor | |
| CN111049297A (en) | Rotor and motor | |
| CN214707320U (en) | Disc type solid motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |