CN207766050U - Modularization durface mounted permanent magnet body rotor - Google Patents
Modularization durface mounted permanent magnet body rotor Download PDFInfo
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- CN207766050U CN207766050U CN201820006890.0U CN201820006890U CN207766050U CN 207766050 U CN207766050 U CN 207766050U CN 201820006890 U CN201820006890 U CN 201820006890U CN 207766050 U CN207766050 U CN 207766050U
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- rotor
- permanent magnet
- cramp
- module unit
- block machine
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A kind of modularization durface mounted permanent magnet body rotor, it solves the permanent magnet processing difficulties, of high cost of permanent-magnetic synchronous motor rotor, and rotor, which covers Surface Mount permanent magnet, to be fixed loosely, and the technical problems such as big torque cannot be born, it includes main shaft and the rotor module unit being assembled on main shaft, is characterized in that：A rotor module unit is at least assembled on main shaft, the cramp periphery of rotor module unit is provided with the conical block machine of wedge-shaped claw, its inner conical surface matches with the inclined-plane of permanent magnet arc-shaped surface end, the cramp for being fixed on rotor set both ends covers permanent magnet Surface Mount on cylindrical surface in rotor, the inner conical surface of cramp cone block machine compresses the inclined-plane of permanent magnet, and the wedge-shaped claw in cramp block machine is made to be clamped between two adjacent permanent magnets.Its is reasonable in design, and parts machining is simple, permanent magnetism stops fixation, and the rotor cover die module unit of composition is easy to assembly, readily satisfies the adjustment requirement of the big torque of motor, operation was not only reliable and stable, but also reduced production, maintenance cost.
Description
Technical field
The utility model is related to a kind of permanent-magnetic synchronous motor rotors, especially a kind of to be synchronized for big torque internal rotor permanent-magnetic
The modularization durface mounted permanent magnet body rotor of motor.Suitable for technical fields such as oil field, metallurgy, mines.
Background technology
With being constantly progressive for science and technology, permanent magnet synchronous motor is constantly applied to the fields such as oil field, metallurgy, mine, these
The motor characteristic feature in field is big torque, if rotor still uses traditional embedded permanent magnet structure, it will a large amount of to use
Rotor punching increases manufacturing cost.As permanent magnet synchronous motor requires the torque of output increasing, Surface Mount permanent magnet is solid
Fixed fastness will become extremely distinct issues to the influence of the reliability and stability of motor operation.
To solve the above-mentioned problems, patent announcement number be CN 104779725B " a kind of surface-mounted permanent magnet machine rotor and
Motor ", disclosed technical solution：Including permanent magnet and radial inserts, permanent magnet include at least two pieces or two pieces or more forever
Magnet I and at least one piece of permanent magnet II, the cone wedge taper that the two sides of permanent magnet II are formed be conelet radially outward, radial inserts
It is arranged between permanent magnet and iron core, one end of radial inserts is fixed together with permanent magnet, and the other end of radial inserts is big
End inwardly ladder-like, is equipped with the step type slot to match with radial inserts in the position that iron core matches, radial inserts it is another
One end is movably placed in in step type slot, and sheath is located on the outside of permanent magnet.Since above-mentioned radial inserts is I-shaped shape, in permanent magnet
It needs to process the assembly that T-slot just can guarantee radial inserts between iron core, because permanent magnet brittleness is very big, in process easily
Damage, so highly difficult when processing T-slot on permanent magnet；It is also inconvenient when processing T-slot on iron core, and need forming cutter
Tool.During assembly, the T-slot on radial inserts and iron core, permanent magnet is if it is clearance fit, although being easy assembly
It is that can cause permanent magnet fixation insecure after assembling, it radially can play；If it is interference fit, radial inserts is not easy to fill
Enter therebetween, and the fragile permanent magnet in the radial inserts of assembly.Sheath is located on the outside of permanent magnet, reduces permanent magnet and determines
Air gap between son, permanent magnet easily encounters stator during working rotor, damages permanent magnet.
Patent publication No is " the surface-mount type internal rotor permanent-magnetic synchronous motor " of 105429412 A of CN, disclosed design feature
It is：Magnet steel including rotor core and stator core, multiple periphery walls for being uniformly arranged on rotor core, the inner surface of magnet steel with
The outer surface of rotor core fits, and has concave-convex fit structure between the outer surface of rotor core and the inner surface of magnet steel,
Including the magnet steel card slot being set on rotor core exterior surface and the boss being set on the inner surface of magnet steel；The number of magnet steel card slot
Amount is identical as the quantity of magnet steel, and corresponds, and boss is located at the middle section of magnet steel inner surface.Although this structure is by turning
The circumferential movement of the magnet steel card slot positioning magnetic steel of sub- iron core outer surface, but the matching relationship of magnet steel card slot and magnet steel boss, nothing
By being assembly and performance that interference or clearance fit can all influence motor, and magnet steel boss is also not easy to process.The knot
Structure is not also fixed in radial direction, and when rotor high speed rotation, magnet steel is easily led to magnet steel and be detached from rotor iron by centrifugation force effect
The heart damages motor.
Patent publication No is a kind of " the magneto Surface Mount rotor " of 106253521 A of CN, and disclosed rotor includes：Turn
Sub- iron core and permanent magnet, permanent magnet are set to the peripheral wall of rotor core, in use, can be by between rotor core and permanent magnet
The accommodating gap formed accommodates glue, can firm adhesion rotor core and permanent magnet by using glue.The design feature
It is that glue can firmly cling rotor core and permanent magnet at normal temperatures, but motor is in normal work, stator line packet meeting
A large amount of heat is given out, so that rotor core and permanent magnetism temperature is increased, and then the temperature of glue is caused to increase, ultimately causes glue
Bonding force declines, and permanent magnet is detached from rotor core under the influence of centrifugal force, damages motor.
In addition, Patent publication No is " pole mechanical fixing structure of permanent magnet motor " of 102130554 A of CN, record is consolidated
Determining structure includes：Shaft and rotor yoke, rotor yoke are socketed on the outer round surface of shaft, and external annular surface rushes respectively P limit
To two circular ring shape rotor press plates of protruding pin and P magnetic pole, two circular ring shape rotor press plates, which are respectively fixedly connected with, to be turned by pin and P
The both ends of sub- yoke.A pair of of protruding pin that the both sides of each spacer pin are symmetrical forms V-shaped, the magnetic pole adjacent thereto for pressing
End.Although the protruding pin of the fixed structure can pressing pole end piece adjacent thereto, if not increasing rotor yoke
Length（Rotor yoke is identical as stator core length）, this structure will increase the height of rotor yoke, will reduce rotor yoke with
Air gap between stator core easily leads to magnetic pole " sweeping thorax " '；If increasing the length of rotor yoke（Rotor yoke compares stator core
It is long）Although not easily leading to magnetic pole " sweeping thorax ", it is easy to increase the length of rotor yoke and magnetic pole.This not only wastes material, and
And increase production cost.In addition, rotor press plate is stamping parts, spacer pin made of punching press is cuboid, pole assemblage to rotor
The outer surface of yoke needs the two sides of magnetic pole that will be processed into " V-shaped " inclined-plane, to ensure adjacent two magnetic pole after pole assemblage
Side is parallel, could match with the spacer pin of rectangular-shape." V-shaped " the oblique surface machining cost for leading to magnetic pole is carried in this way
Height, reduces the utilization rate of pole material, and then increases manufacturing cost；If magnetic pole two sides are parallel surface, it is assembled to rotor
Behind yoke surface, magnetic pole will produce angle between adjacent two sides, be contacted for line with the spacer pin of rectangular-shape, can lead to stress
It concentrates, damages magnetic pole.Therefore, complicated rotor press plate, is not easy punching press, results in the raising of production cost.
Utility model content
The purpose of this utility model is to provide a kind of modularization durface mounted permanent magnet body rotor, it solves permanent magnet synchronous motor
The permanent magnet processing difficulties of rotor, of high cost, rotor, which covers Surface Mount permanent magnet, to be fixed loosely, cannot be born the technologies such as big torque and be asked
Topic, reasonable in design, parts machining is simple, permanent magnetism stops fixation, and the rotor cover die module unit of composition is easy to assembly,
The adjustment requirement of the big torque of motor is readily satisfied, operation was not only reliable and stable, but also reduced production, maintenance cost.
Technical solution used by the utility model is：The modularization durface mounted permanent magnet body rotor includes main shaft and is assembled in
Rotor module unit on main shaft, is characterized in that：A rotor module unit, Mei Gezhuan are at least assembled on the main shaft
Submodule unit is integrally formed formula structure, the setting of cramp periphery by the rotor set, permanent magnet, cramp and the fastener that fit together
It is evenly distributed with the conical block machine of wedge-shaped claw, the inner conical surface of conical block machine and the inclined-plane kissing of permanent magnet arc-shaped surface end
It closes, the cramp that rotor set both ends are fixed on using fastener is covered permanent magnet Surface Mount on smooth, cylindrical peripheral surface in rotor, at this time cramp
The inner conical surface of conical block machine compresses the inclined-plane of permanent magnet arc-shaped surface end, and makes the wedge-shaped claw card in cramp cone block machine
Tightly between two adjacent permanent magnets.
Wedge-shaped claw cross section in the cramp cone block machine is trapezoidal, and lateral surface is wide, and medial surface is narrow.
The cramp peripheral surface for being fixed on rotor set smooth, cylindrical peripheral surface both ends is less than the permanent magnetism for being attached to rotor set periphery
External cambered surface is more than rotor and covers cylinder outer diameter.
The utility model has the advantage that and good effect is：Since the utility model is processed not for existing permanent magnet
Just, manufacturing cost is high, rotor set Surface Mount permanent magnet cannot bear big torque, permanent magnet fixes the technical problems such as loosely and into
Row Curve guide impeller, so being easily achieved.Because being at least assembled with a rotor module unit, each rotor mould on its main shaft
Module unit is integrally formed formula structure by rotor set, permanent magnet, cramp and the fastener fitted together, each modular unit can
The torque for exporting certain value, can arbitrarily increase the number of modular unit according to motor torque value size, turn greatly until meeting motor
The requirement of square value, so its is reasonable in design, parts machining is simple, permanent magnetism stops fixation.In addition, the rotor cover die of composition
Module unit is easy to assembly, readily satisfies the adjustment requirement of the big torque of motor, and operation was not only reliable and stable, but also reduces production, safeguards
Cost.Because periphery setting is evenly distributed with the cramp of the conical block machine of wedge-shaped claw, permanent magnet is firmly fixed on rotor
On the smooth, cylindrical peripheral surface of set, blocks permanent magnet due to the effect of centrifugal force and permanent magnet is caused to be detached from rotor set, therefore also avoid
Due to the potential risk that permanent magnetism temperature is high and glue bonding force may be caused to decline, meets motor and need big torque can not
Realize the technical barrier for being fixedly secured Surface Mount permanent magnet.Therefore, the utility model solves the permanent magnetism of permanent-magnetic synchronous motor rotor
Body processing difficulties, of high cost, rotor, which covers Surface Mount permanent magnet, to be fixed loosely, and the technical problems such as big torque cannot be born.
Description of the drawings
The utility model is further described below in conjunction with attached drawing.
Fig. 1 is a kind of structural schematic diagram of the utility model；
Fig. 2 is sectional views of the Fig. 1 along line A-A；
Fig. 3 is a kind of structural schematic diagram of cramp of Fig. 1；
Fig. 4 is sectional views of the Fig. 3 along line B-B；
Fig. 5 is a kind of dimensional structure diagram of Fig. 3；
Fig. 6 is a kind of dimensional structure diagram of permanent magnet of Fig. 1；
Fig. 7 is a kind of dimensional structure diagram of rotor set of Fig. 1.
Number explanation in figure：1 main shaft, 2 cramps, 2-1 claws, 3 flat keys, 4 rotor sets, 5 permanent magnets, 6 fasteners, 7 lockings
Nut.
Specific implementation mode
The concrete structure of the utility model is described in detail according to Fig. 1~7.The modularization durface mounted permanent magnet body rotor includes master
The parts such as axis 1 and the rotor module unit that is assembled in using flat key 3 and locking nut 7 on main shaft 1.Wherein on main shaft 1 at least
There are one rotor module units for assembling.Each rotor module unit can cover 4, multi-disc permanent magnet by the rotor fitted together
5, two cramps 2 and fastener 6 etc. are integrally formed formula structure.It as a result, can be according to the big torque of motor, arbitrary load rotor module
The number of unit improves motor output torque, solves and is fixedly secured Surface Mount permanent magnetism since motor needs big torque cannot achieve
The technical barrier of body.Fastener 6 can be made of sunk screw.The circular cone for being evenly distributed with wedge-shaped claw 2-1 is arranged in 2 periphery of cramp
Shape block machine.The cross sections wedge-shaped claw 2-1 in the conical block machine of cramp 2 in the present embodiment are trapezoidal, and lateral surface is wide, medial surface
It is narrow.The inner conical surface of conical block machine matches with the inclined-plane of 5 arc-shaped surface end of permanent magnet, and rotor set 4 is fixed on using fastener 6
The cramp 2 at both ends covers 5 Surface Mount of permanent magnet on 4 smooth, cylindrical peripheral surfaces in rotor.At this point, the inner cone face pressure of the conical block machine of cramp 2
The inclined-plane of 5 arc-shaped surface end of tight permanent magnet, permanent magnet 5, which is detached from, caused by blocking permanent magnet 5 due to the effect of centrifugal force turns
Sub-set 4.Cramp 2 is fixed by fastener 6, the wedge-shaped claw 2-1 in the conical block machine of cramp 2 is made to be clamped on two neighboring permanent magnetism
Between body 5.And the fixed form of the permanent magnet 5 does not use glue, avoids due to 5 temperature of permanent magnet using being mechanically fixed
It is high and the problem of cause glue bonding force to decline.
For the ease of the wedge-shaped claw 2-1 and well contacting between permanent magnet 5, cramp in the assembly of cramp 2 and cramp 2
The edges wedge-shaped claw 2-1 on 2 can be configured with the structure of chamfering.Cramp 2 can be overall structure, can also use fission
Structures to form is at an annular whole cramp 2, consequently facilitating the making and assembly of cramp 2.
It is fixed in order to avoid being interfered with stator punching since the gap between permanent magnet 5 and stator punching is smaller
2 peripheral surface of cramp at 4 smooth, cylindrical peripheral surface both ends is covered in rotor, less than 5 extrados of permanent magnet for being attached to 4 peripheries of rotor set, greatly
4 cylinder outer diameters are covered in rotor.
Due to can be sent out with concatenated cramp using series connection, the prominent fastener 6 in 2 outside of cramp between rotor module unit
Raw interference, in order to avoid interfering, fastener can also be used the parts such as pin/bolt and fix cramp 2, keep 6 head of fastener complete
It sinks in cramp 2 entirely.For the ease of assembly and the optimization of magnetic circuit, make the material selection stainless steel of cramp 2, aluminium, aluminium alloy,
The non-permeable materials such as cast aluminium, nylon, copper, alloyed copper, plastics, organic material.Make material selection cast iron, the carbon of rotor set 4
The magnetic conductive materials such as plain steel.
Claims (3)
1. a kind of modularization durface mounted permanent magnet body rotor, including main shaft and the rotor module unit that is assembled on main shaft, feature
It is：At least it is assembled with a rotor module unit on the main shaft, each rotor module unit is by the rotor that fits together
Set, permanent magnet, cramp and fastener are integrally formed formula structure, and the setting of cramp periphery is evenly distributed with the cone gear of wedge-shaped claw
The inner conical surface of platform, conical block machine matches with the inclined-plane of permanent magnet arc-shaped surface end, and rotor set two is fixed on using fastener
The cramp at end is by permanent magnet Surface Mount on rotor set smooth, cylindrical peripheral surface, and the inner conical surface of cramp cone block machine compresses permanent magnet at this time
The inclined-plane of arc-shaped surface end, and the wedge-shaped claw in cramp cone block machine is made to be clamped between two adjacent permanent magnets.
2. modularization durface mounted permanent magnet body rotor according to claim 1, it is characterised in that：The cramp cone block machine
On wedge-shaped claw cross section be it is trapezoidal, lateral surface is wide, and medial surface is narrow.
3. modularization durface mounted permanent magnet body rotor according to claim 1, it is characterised in that：It is fixed on the rotor set light
The cramp peripheral surface at sliding cylindrical surface both ends is less than the permanent magnet extrados for being attached to rotor set periphery, is more than rotor and covers smooth cylindrical
External diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006890.0U CN207766050U (en) | 2018-01-03 | 2018-01-03 | Modularization durface mounted permanent magnet body rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006890.0U CN207766050U (en) | 2018-01-03 | 2018-01-03 | Modularization durface mounted permanent magnet body rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207766050U true CN207766050U (en) | 2018-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820006890.0U Active CN207766050U (en) | 2018-01-03 | 2018-01-03 | Modularization durface mounted permanent magnet body rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207766050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092428A (en) * | 2018-01-03 | 2018-05-29 | 沈阳蓝光驱动技术有限公司 | Modularization durface mounted permanent magnet body rotor |
-
2018
- 2018-01-03 CN CN201820006890.0U patent/CN207766050U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092428A (en) * | 2018-01-03 | 2018-05-29 | 沈阳蓝光驱动技术有限公司 | Modularization durface mounted permanent magnet body rotor |
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