CN205141869U - A shrcud ring fixing device for motor - Google Patents
A shrcud ring fixing device for motor Download PDFInfo
- Publication number
- CN205141869U CN205141869U CN201520831656.8U CN201520831656U CN205141869U CN 205141869 U CN205141869 U CN 205141869U CN 201520831656 U CN201520831656 U CN 201520831656U CN 205141869 U CN205141869 U CN 205141869U
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- shroud
- motor
- bar
- fixture
- intercell connector
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Abstract
The utility model discloses a shrcud ring fixing device for motor relates to electrical machine technical field. Including the shrcud ring mount, the shrcud ring mount includes a plurality of shrcud ring strips and a plurality of connecting strip, circumference even spacing distribution is followed to a plurality of connecting strips, connect through the shrcud ring strip between the two adjacent connecting strips, equidistantly between the two adjacent connecting strips be provided with a plurality of shrcud ring strips, the connecting strip connects into a cylinder type shrcud ring mount through a plurality of shrcud ring strips. The utility model discloses a centrifugal force that the aspect received the end winding changes fixing device's tensile stress into, deformation under the fine control tip winding centrifugal force effect, on the other hand the utility model discloses a shrcud ring fixed structure is favorable to cooling fluid to winding overhang's cooling when high -speed rotatory, is convenient for control winding overhang's temperature rise.
Description
Technical field
The utility model relates to electromechanics technical field, especially relates to a kind of shroud fixture for fixed rotor End winding.
Background technology
Speed-adjustable hydraulic generator achieves flexibly connecting of motor speed and frequency of supply, ac frequency is passed into by changing rotor windings, make rotor current set up magnetic field relative rotor speed adjustable, realizing unit actual motion speed can be adjustable within the specific limits.When speed-adjustable hydraulic generator rotor adopts Wound-rotor type structure, rotor coil is made up of bar formula line rod.When speed-adjustable hydraulic generator height rotating speed runs; be different from traditional salient pole synchronous electric machine; it is no longer supported by pole core boots portion that magnet exciting coil produces centrifugal force, needs to arrange corresponding structure in rotor core groove portion and end and protects rotor windings.
State Intellectual Property Office was on 02 22nd, 2012, disclosing a publication number is CN101689782B, name is called the patent of invention of the rotor for motor, this patent of invention relates to a kind of rotor for motor particularly hydraulic generator, described rotor comprises rotor yoke (12), and this rotor yoke has axial slot for winding (13), and described axial slot for winding distributes around neighboring, and the winding bar of rotor windings (14,15) inserts in described axial slot for winding.The winding ends (16,17) formation End winding (11) axially exposed from rotor yoke (12) of winding bar (14,15), described End winding is by means of holding device (19,, 28) be kept to resist centrifugal force, described holding device comprises multiple radial bolts (24).In such rotor, radial bolts (24) has the head (25) being connected to bar portion (31) in a position-stable manner.
For hundred MW class speed-adjustable hydraulic generator at a high speed in prior art, when unit runaway speed, rotor circumference linear velocity is larger, generally reach 180m/s, ensuring of the security reliability of whole phase-wound rotor structure under huge centrifugal action and rotor windings electrical insulation properties is to be verified, often adopts four kinds of modes at present: 1, utilize binding strap along rotor windings outer rim around fixing for wound rotor winding end winding support; 2, whole section of metal retaining ring structure is adopted; 3, radial stretching screw and extension unshakable in one's determination fit structure; 4, tightening bolt and single becket fit structure.Four kinds of modes can play the effect of supporting winding overhang centrifugal force, and first two mode increases the windage of winding overhang cooling blast, is unfavorable for the heat radiation of winding overhang; 3rd kind of mode needs rotor core outside effective section, increase fixing for tightening bolt of extension again, cause the increase of cost simultaneously rotor assemble total body weight gains, increase the design difficulty of boom hoisting; 4th kind of mode single metal ring is corresponding with the tightening bolt that every layer is arranged, the becket of multilayer is connected conjunction by the supporting bracket of circle distribution, have impact on the globality of supporting arrangement.For speed-adjustable hydraulic generator, the high rotating speed unit that particularly speed adjustable range is large, the supporting arrangement of winding overhang should have good ventilation and heat ability, requires again under huge centrifugal action safe and reliable.
Utility model content
In order to the heat-sinking capability overcoming the existence of above-mentioned winding overhang fixed structure is strong or the defect of supporting arrangement globality difference, the utility model provides a kind of shroud fixture for motor, the centrifugal force that End winding is subject to by this shroud fixture on the one hand changes into the tension stress of fixture, well controls the deformation under End winding centrifugal action; Shroud fixed structure of the present utility model its effect when High Rotation Speed is radial fan on the other hand, can significantly improve the heat-sinking capability of winding overhang.
For above-mentioned deficiency of the prior art, the utility model is achieved through the following technical solutions:
A kind of shroud fixture for motor, it is characterized in that: comprise shroud fixed mount, described shroud fixed mount comprises some shroud bars and some intercell connectors, be provided with space between described intercell connector, described shroud bar is arranged in intercell connector space and two ends and is connected on adjacent two intercell connectors; Described intercell connector connects the column type shroud fixed mount of crowding around a formation coated End winding by shroud bar.
Described intercell connector circumferentially equidistantly distributes.
Multiple shroud bar is provided with at equal intervals between adjacent two intercell connectors.
Described shroud bar is provided with some through holes.
Described intercell connector is provided with some through holes.
Shroud fixed structure also comprises stretching screw, and described stretching screw one end is fixed, and the other end passes through hole and strains shroud fixed mount.
Described shroud bar and described intercell connector adopt mortise-tenon joint.
Described shroud bar two ends are provided with dove tail boss, and described dove tail boss thickness is less than described shroud bar thickness.
Described intercell connector width both sides are provided with dovetail slot, and the described dovetail slot degree of depth is greater than described shroud bar dove tail boss thickness.
Compared with prior art, the useful technique effect that the utility model brings shows:
1, shroud fixture of the present utility model can be applicable to motor, generator motor and generator, especially applicable generator motor and generator.Shroud fixed structure of the present utility model comprises shroud fixed mount, comprise shroud fixed mount, described shroud fixed mount comprises some shroud bars and some intercell connectors, be provided with space between described intercell connector, described shroud bar is arranged in intercell connector space and two ends and is connected on adjacent two intercell connectors; Described intercell connector connects the column type shroud fixed mount of crowding around a formation coated End winding by shroud bar.Shroud bar can be connected into cylindrical-shaped structure by polylith contiguous block by fixed structure of the present utility model, makes to there is gap between the shroud bar of axially different height simultaneously, is conducive to the cooling of cooling fluid to winding overhang, is convenient to controlled winding temperature rise.
2, the utility model ensures that each shroud bar of axially different height axially with one heart, effectively can prevent the phenomenon that winding overhang axial deformation is inconsistent.
3, the utility model is by overall for all radial tightening bolt compositions, is no longer single independent fixture.When part bolt occurs loosening inefficacy because motor runs, part supporting centrifugal force is converted into the tension stress of joinery and its construction, improves the margin of safety of whole fixed structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model shroud fixed mount;
Fig. 2 is shroud bar structural representation;
Fig. 3 is intercell connector structural representation;
Reference numeral: 8, shroud fixed mount, 81, stretching screw, 82, shroud bar, 83, intercell connector, 84, through hole, 85, dove tail boss, 86, dovetail slot.
Embodiment
Embodiment 1
As the another preferred embodiment of the utility model, present embodiment discloses with reference to Figure of description 1,2 and 3,
A kind of shroud fixture for motor, comprise shroud fixed mount 8, described shroud fixed mount 8 comprises some shroud bars 82 and some intercell connectors 83, be provided with space between described intercell connector 83, described shroud bar 82 is arranged in intercell connector 83 space and two ends and is connected on adjacent two intercell connectors 83; Described intercell connector 83 connects the column type shroud fixed mount 8 of crowding around a formation coated End winding by shroud bar 82.
Embodiment 2
As the another preferred embodiment of the utility model, present embodiment discloses with reference to Figure of description 1,2 and 3, a kind of shroud fixture for motor, comprise shroud fixed mount 8, described shroud fixed mount 8 comprises some shroud bars 82 and some intercell connectors 83, be provided with space between described intercell connector 83, described shroud bar 82 is arranged in intercell connector 83 space and two ends and is connected on adjacent two intercell connectors 83; Described intercell connector 83 connects the column type shroud fixed mount 8 of crowding around a formation coated End winding by shroud bar 82.Described intercell connector 83 circumferentially equidistantly distributes; Multiple shroud bar 82 is provided with at equal intervals between adjacent two intercell connectors 83.
Embodiment 3
As the another preferred embodiment of the utility model, present embodiment discloses:
A kind of shroud fixture for motor, comprise shroud fixed mount 8, described shroud fixed mount 8 comprises some shroud bars 82 and some intercell connectors 83, be provided with space between described intercell connector 83, described shroud bar 82 is arranged in intercell connector 83 space and two ends and is connected on adjacent two intercell connectors 83; Described intercell connector 83 connects the column type shroud fixed mount 8 of crowding around a formation coated End winding by shroud bar 82.Described intercell connector 83 circumferentially equidistantly distributes; Multiple shroud bar 82 is provided with at equal intervals between adjacent two intercell connectors 83.Described shroud bar 82 is provided with some through holes 84; Described intercell connector 83 is provided with some through holes 84.
Embodiment 4
As the another preferred embodiment of the utility model, the present embodiment is supplementing further and limiting embodiment 1, present embodiment discloses
Also comprise stretching screw 81, described stretching screw 81 one end is fixed, and the other end passes through hole 84 and strains shroud fixed mount 8.Stretching screw one end is fixed in the fixed card slot of rotor extension, the other end, through through hole, is strained, in rotary course shroud fixed mount, the centrifugal force of End winding is converted into the tension stress of stretching screw, well controls the deformation under End winding centrifugal action.
Embodiment 5
As the another preferred embodiment of the utility model, the present embodiment is supplementing further and limiting embodiment 2, present embodiment discloses
Described shroud bar 82 adopts mortise-tenon joint with described intercell connector 83; Described shroud bar 82 two ends are provided with dove tail boss 85, and described dove tail boss 85 thickness is less than described shroud bar 82 thickness; Described intercell connector 83 width both sides are provided with dovetail slot 86, and described dovetail slot 86 degree of depth is greater than described shroud bar 82 dove tail boss 85 thickness.
Claims (9)
1. the shroud fixture for motor, it is characterized in that: comprise shroud fixed mount (8), described shroud fixed mount (8) comprises some shroud bars (82) and some intercell connectors (83), described intercell connector is provided with space between (83), and described shroud bar (82) is arranged in intercell connector (83) space and two ends and is connected on adjacent two intercell connectors (83); Described intercell connector (83) connects the column type shroud fixed mount (8) of crowding around a formation coated End winding by shroud bar (82).
2. a kind of shroud fixture for motor as claimed in claim 1, is characterized in that: described intercell connector (83) circumferentially equidistantly distributes.
3. a kind of shroud fixture for motor as claimed in claim 1 or 2, is characterized in that: be provided with multiple shroud bar (82) at equal intervals between adjacent two intercell connectors (83).
4. a kind of shroud fixture for motor as claimed in claim 3, is characterized in that: described shroud bar (82) is provided with some through holes (84).
5. a kind of shroud fixture for motor as claimed in claim 4, is characterized in that: described intercell connector (83) is provided with some through holes (84).
6. a kind of shroud fixture for motor as described in claim 4 or 5, it is characterized in that: shroud fixture also comprises stretching screw (81), described stretching screw (81) one end is fixed, and the other end passes through hole (84) and strains shroud fixed mount (8).
7. a kind of shroud fixture for motor as described in claim 4 or 5, is characterized in that: described shroud bar (82) and described intercell connector (83) adopt mortise-tenon joint.
8. a kind of shroud fixture for motor as described in claim 4 or 5, is characterized in that: described shroud bar (82) two ends are provided with dove tail boss (85), and described dove tail boss (85) thickness is less than described shroud bar (82) thickness.
9. a kind of shroud fixture for motor as claimed in claim 8, it is characterized in that: described intercell connector (83) width both sides are provided with dovetail slot (86), described dovetail slot (86) degree of depth is greater than described shroud bar (82) dove tail boss (85) thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520831656.8U CN205141869U (en) | 2015-10-26 | 2015-10-26 | A shrcud ring fixing device for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520831656.8U CN205141869U (en) | 2015-10-26 | 2015-10-26 | A shrcud ring fixing device for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205141869U true CN205141869U (en) | 2016-04-06 |
Family
ID=55627621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520831656.8U Active CN205141869U (en) | 2015-10-26 | 2015-10-26 | A shrcud ring fixing device for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205141869U (en) |
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2015
- 2015-10-26 CN CN201520831656.8U patent/CN205141869U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |