A kind of high speed rotor of motor
Technical field
The utility model belongs to rotor technical field, and in particular to a kind of high speed rotor of motor.
Background technique
The rotor structure of middle and small motor is mostly cast-aluminum rotor at present, also there is the copper casting rotor and copper bar rotor of only a few.
Cast-aluminum rotor is applied than wide, and copper casting rotor is a kind of emerging technique, and technology is still in the stage being left to be desired.This two kinds turn
Son is as being applied to high-speed motor, although there are advantage, requirement pole of the high-speed motor to cast-aluminum rotor and copper casting rotor in price
Height, in dynamic balancing and aspect of performance, there is also certain deficiencies.Copper casting rotor is applied on high-speed motor, is easy in operation
There is the phenomenon that copper bar is thrown away.
Summary of the invention
The deficiency that copper bar may be thrown away when the utility model is applied to high-speed motor for existing copper casting rotor, provides one kind
High speed rotor of motor can effectively prevent copper bar when work to throw away the generation of phenomenon.Further, level of efficiency, security performance,
Balance quality, mechanical strength etc. improve.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of high speed rotor of motor, including motor turn
Axis and the copper bar rotor component being sheathed on machine shaft, copper bar rotor component include iron core and the more axis in iron core
To copper bar, copper bar both ends expose to iron core, a pair of of retaining ring are also arranged on the machine shaft, and the pair of retaining ring is located at copper
Rotor assembly axial ends, the retaining ring and copper bar rotor component touch.
Retaining ring is arranged at copper bar rotor component both ends in the high speed rotor of motor of the utility model, and retaining ring socket is installed in electricity
On machine rotor, copper bar can be effectively prevented and throw away, guarantees that motor works normally.
As an improvement, the copper bar rotor component further includes the end ring on the outside of copper bar, the end ring is bonded iron core end
Face, the end ring open up copper bar through-hole, and the copper bar passes through copper bar through-hole and contacts with copper bar through-hole side wall.Copper bar and end ring
The contact of copper bar through-hole side wall, contact area is larger, improves end-ring current, can reduce rotor temperature rise.
As an improvement, the copper bar rotor component further includes the pressure ring axially external set on end ring, the pressure ring is bonded end
Ring end face.The structural strength of pressure ring raising copper bar rotor component.
As an improvement, the pressure ring opens up pressure ring through slot, the copper bar be located in pressure ring through slot and with pressure ring through slot side wall
Contact;The copper bar outer end is flushed with pressure ring.
As an improvement, the end ring is copper end ring, the pressure ring is steel pressure ring, the iron core, copper end ring, steel
Pressure ring forms an entirety by welding, and the structural strength of copper bar rotor component is effectively guaranteed.
As an improvement, the internal diameter of the copper end ring, steel pressure ring is greater than iron core internal diameter, the copper bar rotor component hot jacket
On machine shaft.
As an improvement, having positioning step on the machine shaft;The end ring has inner end and outer end, described interior
End opens up the copper bar through-hole, and the outer end periphery opens up the open slot of the perforation concentric with the copper bar through-hole.
As an improvement, opening up retaining ring slot on the inside of the retaining ring, the retaining ring is set in outside end ring, the copper bar rotor component
The low inner end in both ends outer end is high, and the retaining ring slot has circular conical surface, the circular conical surface and copper bar rotor component end sides of the retaining ring
It matches.Copper bar, the small inner end outer diameter of the equal outer end outer diameter of end ring and pressure ring end are big.
As an improvement, the retaining ring hot jacket is on machine shaft;The retaining ring outer diameter is equal with iron core outer diameter.Retaining ring hot jacket
On machine shaft, not only rotor can be balanced using the method for duplicate removal on retaining ring, moreover it is possible to which effective protection copper bar is in high speed
It is not thrown out of when operation.
As an improvement, being formed with multiple circumferentially uniformly distributed axially extending bores on the iron core, the copper bar is passed through without deformation
Axially extending bore.Copper bar all passes through iron core without deformation, and copper bar both ends exposed portion length is consistent, the flute profile internal diameter and copper of iron core
Interspace is sufficiently small, improves dynamically balanced precision.
The beneficial effect of the high speed rotor of motor of the utility model is: retaining ring is arranged at copper bar rotor component both ends, effectively
Copper bar is thrown away when preventing motor from working, and guarantees that motor works normally.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the high speed rotor of motor of the utility model embodiment one.
Fig. 2 is the exploded view of the high speed rotor of motor of the utility model embodiment one.
Fig. 3 is the cross-sectional view of the high speed rotor of motor of the utility model embodiment one (at non-copper bar).
Fig. 4 is the cross-sectional view of the high speed rotor of motor of the utility model embodiment one (at copper bar).
Fig. 5 is the schematic perspective view of the machine shaft of the high speed rotor of motor of the utility model embodiment one.
Fig. 6 is the structural schematic diagram of the iron core of the high speed rotor of motor of the utility model embodiment one.
Fig. 7 is the structural schematic diagram of the copper bar of the high speed rotor of motor of the utility model embodiment one.
Fig. 8 is the structural schematic diagram of the end ring of the high speed rotor of motor of the utility model embodiment one.
Fig. 9 is the structural schematic diagram of the pressing plate of the high speed rotor of motor of the utility model embodiment one.
Figure 10 is the structural schematic diagram of the retaining ring of the high speed rotor of motor of the utility model embodiment one.
In figure, 1, machine shaft;
2, iron core;
3, copper bar;
4, end ring, 41, inner end, 411, copper bar through-hole, 42, outer end, 421, open slot;
5, pressure ring, 51, pressure ring through slot;
6, retaining ring, 61, retaining ring slot, 611, inclined surface.
Specific embodiment
Below with reference to the attached drawing of the invention embodiment, the technical solution of the invention embodiment is explained and
Illustrate, but following embodiments are only the preferred embodiment of the invention, and not all.Based on the implementation example in the implementation mode,
Those skilled in the art's other embodiments obtained without making creative work, belong to the invention
Protection scope.
Referring to Fig. 1 to Figure 10, a kind of high speed rotor of motor, including machine shaft and the copper bar being sheathed on machine shaft
Rotor assembly, copper bar rotor component include the copper bar of iron core and the more axial directions in iron core, and copper bar both ends expose to iron
Core is also socketed fixed a pair of of retaining ring on the machine shaft, and the retaining ring is located at copper bar rotor component axial ends outside, described
Retaining ring and copper bar rotor component touch.
Retaining ring is arranged at copper bar rotor component both ends in the high speed rotor of motor of the utility model, and retaining ring is covered in machine shaft
It is upper and affixed with machine shaft, copper bar can be effectively prevented and throw away, guarantee that motor works normally.
Embodiment one
Referring to Fig. 1 to Figure 10, a kind of high speed rotor of motor of the utility model embodiment one, including machine shaft 1 and
The copper bar rotor component being sheathed on machine shaft 1, copper bar rotor component include iron core 2 and the more axial directions in iron core 2
Copper bar 3,3 both ends of copper bar expose to iron core 2, and fixed a pair of of retaining ring 6, the retaining ring 6 are also socketed on the machine shaft 1
On the outside of copper bar rotor component axial ends, the retaining ring 6 and copper bar rotor component touch.
Referring to Fig. 1 and Fig. 2, a kind of high speed rotor of motor of the utility model embodiment one, including machine shaft 1, iron core
2, copper bar 3, end ring 4, pressure ring 5 and retaining ring 6.Copper bar rotor component includes iron core 2, copper bar 3, end ring 4, pressure ring 5.
Referring to Fig. 3 to Figure 10, as an improvement, the copper bar rotor component further includes the end ring 4 set on 3 outer end of copper bar, institute
It states end ring 4 and is bonded 2 both ends end face of iron core, the end ring 4 opens up copper bar through-hole 411, and the copper bar 3 is located in copper bar through-hole 411
And contacted with 411 wall of copper bar through-hole, 4 inner face of end ring is bonded with iron core 2.Copper bar 3 is located at the copper bar through-hole 411 of end ring 4
In, 4 electric current of end ring is improved, the purpose for reducing rotor temperature rise is realized.
As an improvement, the copper bar rotor component further includes the pressure ring 5 outside end ring 4, the pressure ring 5 is bonded end ring 4
Outer end face.
As an improvement, the pressure ring 5 opens up pressure ring through slot 51, the copper bar 3 is located in pressure ring through slot 51 and leads to pressure ring
The contact of 51 side wall of slot;3 both ends of copper bar are flushed with pressure ring 5.
As an improvement, the end ring 4 is copper end ring 4, the pressure ring 5 is steel pressure ring 5, the iron core 2, copper end ring
4, steel pressure ring 5 forms an entirety by welding, and the structural strength of copper bar rotor component is effectively guaranteed.
As an improvement, the internal diameter of the copper end ring 4, steel pressure ring 5 is greater than 2 internal diameter of iron core, the copper bar rotor component
Hot jacket is on machine shaft 1.
As an improvement, having positioning step on the machine shaft 1.Positioning step can determine copper bar rotor component
Position.
The end ring 4 has inner end 41 and outer end 42, and the inner end 41 opens up the copper bar through-hole 411, institute
State the open slot 421 that 42 periphery of outer end opens up the perforation concentric with the copper bar through-hole 411.
As an improvement, opening up retaining ring slot 61 on the inside of the retaining ring 6, the retaining ring 6 is set in outside end ring 4, and the copper bar turns
The circular conical surface that sub-component has the low inner end in outer end high, the retaining ring slot 61 have circular conical surface 611, the circular conical surface 611 of the retaining ring 6
It is matched with the inclined surface of copper bar rotor component.The outer end 42 of copper end ring 4 is tapered, and steel pressure ring 5 is tapered, copper end
The outer end 42 of ring 4 and steel pressure ring 5 are in same circular conical surface.The inner end 41 of copper end ring 4 is tapered so that retaining ring 6 not with
Iron core 2 contacts.3 both ends of copper bar are respectively provided with an inclined surface, and copper bar 3 can cut to form inclined surface at both ends.
As an improvement, 6 hot jacket of retaining ring is on machine shaft 1;6 outer diameter of retaining ring is equal with 2 outer diameter of iron core.Retaining ring
6 hot jackets not only can balance rotor using the method for duplicate removal on retaining ring 6, moreover it is possible to effectively protect copper bar on machine shaft 1
3 are not thrown out of in high-speed cruising.
As an improvement, be formed with multiple circumferentially uniformly distributed axial copper bar through-holes 411 on the iron core 2, the copper bar 3 is without change
Shape passes through axial copper bar through-hole 411.Copper bar 3 all passes through iron core 2 without deformation, and 3 both ends exposed portion length of copper bar is consistent,
The flute profile internal diameter of iron core 2 and 3 gap of copper bar are sufficiently small, improve dynamically balanced precision.
The beneficial effect of the high speed rotor of motor of the utility model embodiment one is: being arranged at copper bar rotor component both ends and protects
Ring 6, copper bar 3 is thrown away when motor being effectively prevent to work, and guarantees that motor works normally.
The above, the only specific embodiment of the invention, but the protection scope of the invention does not limit to
In this, being familiar with the those skilled in the art should be understood that the invention includes but is not limited to attached drawing and specific embodiment party above
Content described in formula.The modification of any function and structure principle without departing from the invention is intended to be included in claims
Range in.