CN204947769U - The fixed structure of generator stator end insulating support - Google Patents
The fixed structure of generator stator end insulating support Download PDFInfo
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- CN204947769U CN204947769U CN201520739879.1U CN201520739879U CN204947769U CN 204947769 U CN204947769 U CN 204947769U CN 201520739879 U CN201520739879 U CN 201520739879U CN 204947769 U CN204947769 U CN 204947769U
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Abstract
The utility model discloses a kind of fixed structure of generator stator end insulating support, belong to electric generator structure design field; Described fixed structure comprises insulating support, and described insulating support is connected to the end of stator by the connector of " L " type; The fixed structure of generator stator end insulating support of the present utility model, the connector of described " L " type connects insulating support and stator end, " L " type structure had by connector realizes the slippage ability of generator unit end, effectively avoid wearing and tearing in slipping compared to there is sliding contact surface Sliding Structures, and " L " structure also makes radial space take is effectively reduced.
Description
Technical field
The utility model relates to a kind of fixed structure of generator stator end insulating support, belongs to electric generator structure design field.
Background technology
Under the frequent start-stop of generating set and peaking operation operating mode, stator coil can expand with heat and contract with cold along with the load variations of unit, along with phenomenon this after the maximization of unit is more obvious.Therefore all have employed telescopic Sliding Structures between existing Generator Stator winding overhang and iron core.
Large-size machine stator end stator coil generally adopts insulation conical ring pressing plate to fix or fixed by insulating support colligation.Carry out in the fixing scheme of coil at insulation conical ring pressing plate, the end of insulation conical ring is provided with the elastic ring in a circumference, is connected the slippage realizing stator winding end and iron core by this elastic ring with the bolt of stator end.In the scheme of insulating support colligation fixed coil, be connected to realize telescopic slippage by sliding bearing axially with stator end by insulating support.Above two kinds of Sliding Structures also exist sliding contact surface, make to there are wearing and tearing at work, change and safeguard inconvenient.Along with the improvement of technology, have also appeared the fixed solution of insulating support assembling insulation conical ring pressing plate fixed coil, Sliding Structures between insulating support with stator is that the support by insulating support and stator being carried out being connected realizes, and this support is positioned in the radial direction of unit, insulating support is made to take more radial space.
Summary of the invention
Goal of the invention of the present utility model is: for above-mentioned Problems existing, provides a kind of fixed structure of generator stator end insulating support simple for structure, to overcome the deficiency that existing scheme has.
The technical solution adopted in the utility model is as follows:
The fixed structure of generator stator end insulating support, comprises insulating support, and described insulating support is connected to the end of stator by the connector of " L " type.
Further, also comprise the stator lead insulating frame for fixed stator lead-in wire, described stator lead insulating frame and be fixed on generator pit between bracing frame can be in axial sliding connection.
Further, described stator lead insulating frame, stator lead are connected with insulating support for overall structure.
Further, described stator lead insulating frame and bracing frame can be in axial sliding connection by axial location bolt.
The fixed structure of generator stator end insulating support of the present utility model, also comprise the stator coil of generator, with the insulation conical ring fixed for stator coil, described insulation conical ring is arranged on insulating support, and described stator coil is fixed on insulation conical ring by the primary insulation pressing plate be positioned at inside ring.
Further, described primary insulation pressing plate is integrally-built plate body, and is connected with insulation conical ring by the insulation blanket stud on plate body.
Further, described stator coil comprises upper strata stator coil and lower floor's stator coil, and described upper strata stator coil and lower floor's stator coil arrange independently notch fixed block respectively.
Further, also comprise the second fixed structure for being fixed on by stator coil on insulation conical ring, described second fixed structure is between primary insulation pressing plate and notch fixed block.
Further, also comprise pushing out ring in the nose for being fixed by stator coil nose, in described nose, pushing out ring is arranged at inside the ring of stator coil nose.
Further, described insulating support is provided with tightening structure, in nose, pushing out ring is tightened in the nose of stator coil by tightening structure.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1, the connector of described " L " type connects insulating support and stator end, " L " type structure had by connector realizes the slippage ability of generator unit end, effectively avoid wearing and tearing in slipping compared to there is sliding contact surface Sliding Structures, and " L " structure also makes radial space take is effectively reduced;
2, can be in axial sliding connection between described stator lead insulating frame and bracing frame, make can be in axial sliding connection formation 2 slip points at the connector of " L " type with this, ensure that the reliable of stator end sliding design, can be in axial sliding connection between stator lead insulating frame and bracing frame simultaneously and have that force of sliding friction is little, little advantage of wearing and tearing, and maintainability performance is good;
3, in the fixed structure of described generator stator end insulating support, insulation conical ring is fixed on motor stator end by insulating frame, and adopt primary insulation pressing plate coil to be fixed on the scheme of insulation conical ring, coil is fixed on scheme on insulation conical ring by interior pushing out ring multiple compared to existing employing, there is the simple advantage of structure, and it is firm to ensure that stator coil is fixed, can effectively prevent stator from encouraging end end mass comparatively greatly, the problem that slippage is not smooth;
4, the utility model is also provided with the second fixed structure in further position between notch fixed block and primary insulation pressing plate, the line part of stator coil is fixed on insulation conical ring, additionally by inside the nose ring of stator coil, pushing out ring in nose is set, ensure that stator coil nose assembles firm, in this nose, pushing out ring is strained by the tightening structure be arranged on insulating support simultaneously, ensure that its reliability.
Accompanying drawing explanation
Fig. 1 is the fixed structure schematic diagram of generator stator end insulating support of the present utility model;
Fig. 2 is another schematic diagram of fixed structure of generator stator end insulating support of the present utility model;
Fig. 3 is the connector connection diagram of " L " of the present utility model type;
Fig. 4 is the layout schematic diagram of notch fixed block of the present utility model on coil.
Mark in figure: 1-stator coil, 1a-upper strata stator coil, 1b-lower floor stator coil, 2-insulate conical ring, 3-insulating support, 3a-connector, 4-stator pressing ring, 4a-copper shield, 5-primary insulation pressing plate, 5a-insulation blanket stud, pushing out ring in 6-pressing plate, 7a-layer insulation pressing plate, 7b-conformable material layer, 8-notch fixed block, 9-second fixed structure, pushing out ring in 10-nose, 10a-tightening structure, 11-stator lead, 12-stator lead insulating frame, 13-bracing frame, 13a-axial location bolt.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
embodiment 1
The fixed structure of generator stator end insulating support of the present utility model, as shown in Figure 1, comprises insulating support 3, and described insulating support 3 is connected to the end of stator by the connector 3a of " L " type.The connector 3a of described " L " type specifically connects signal as shown in Figure 3, and a lateral surface of the connector 3a of " L " type and the end face of stator pressing ring 4 are bolted to connection, and the sidewall of another lateral surface and insulating support 3 is bolted.The connector 3a of described " L " type adopts steel matter to make, and its slippage ability is mainly positioned at its side be connected with stator pressing ring 4 end face.
Further, the corner of the connector 3a of " L " type is curved corner structure, to ensure its good slippage ability.In the present embodiment, an insulating support 3 is connected by the connector 3a of two " L " types.
embodiment 2
The present embodiment is on the basis of embodiment 1, devise the radial fixed structure of a kind of concrete generator stator end, its structure as shown in Figure 1, comprise generator unit, the stator pressing ring 4 of stator end and copper shield 4a, also comprise stator coil 1, insulation conical ring 2 and insulating support 3, insulation conical ring 2 is fixed on the stator pressing ring 4 of generator unit end by insulating support 3, described insulating support 3 such as embodiment 1 is connected on the stator pressing ring 4 of stator end by the connector 3a of " L " type, and copper shield 4a is positioned between insulating support 3 and stator pressing ring 4.
In the present embodiment, described stator coil 1 comprises upper strata stator coil 1a and lower floor stator coil 1b, is provided with layer insulation pressing plate 7a between described upper strata stator coil 1a and lower floor stator coil 1b, or conformable material layer 7b as shown in Figure 2.
Described stator coil 1 is fixed on insulation conical ring 2 by the insulating press boards be positioned at inside ring, insulating press boards described in the utility model adopts the sectional type pressure plate structure in existing pressing plate fixed structure to design, and be connected with insulation conical ring 2 by insulation blanket stud, be conveniently provided with interior pushing out ring inside the ring of described sectional type insulating press boards and support.Because the insulation blanket stud of the conical ring 2 that insulate needs enough installing spaces, and make stator coil 1 go out notch and first insulation blanket stud has larger distance, therefore notch setting is being gone out for being arranged on the notch fixed block between stator coil 1, notch fixed block adopts the integral type notch fixed block of conventional pressing plate fixed structure to design, i.e. upper strata stator coil 1a and the same notch fixed block of lower floor stator coil 1b.Sectional type pressing plate and integral type notch fixed block do not do concrete signal in the drawings as existing structure, but do not affect the understanding of those skilled in the art to scheme.
embodiment 3
The present embodiment is on the basis of embodiment 1, devise the radial fixed structure of a kind of concrete generator stator end, its structure as shown in Figure 1, comprise generator unit, the stator pressing ring 4 of stator end and copper shield 4a, also comprise stator coil 1, insulation conical ring 2 and insulating support 3, insulation conical ring 2 is fixed on the stator pressing ring 4 of generator unit end by insulating support 3, described insulating support 3 such as embodiment 1 is connected on the stator pressing ring 4 of stator end by the connector 3a of " L " type, and copper shield 4a is positioned between insulating support 3 and stator pressing ring 4.
Described stator coil 1 is fixed on insulation conical ring 2 by the primary insulation pressing plate 5 be positioned at inside ring, and the pressing plate of primary insulation described in the utility model 5 is integrally-built plate body as shown in fig. 1.And be connected with insulation conical ring 2 by the insulation blanket stud 5a at plate body two ends, compared to the platen design of the existing sectional type pressure plate structure that embodiment 2 adopts, integrally-built plate body has structure advantage simply easy for installation.In order to firmness installed by the primary insulation pressing plate 5 improving overall structure plate body further, be provided with pushing out ring 6 in pressing plate inside the ring of described primary insulation pressing plate 5, its mounting means supports similar to effect with the interior pushing out ring in existing sectional type insulating press boards ring.Owing to insulating, the insulation blanket stud 5a of conical ring 2 needs enough installing spaces, and make stator coil 1 go out notch with first insulation blanket stud 5a has larger distance, therefore going out notch setting for being arranged on the notch fixed block 8 between stator coil 1.
In the present embodiment, described stator coil 1 comprises upper strata stator coil 1a and lower floor stator coil 1a, layer insulation pressing plate 7a is provided with between described upper strata stator coil 1a and lower floor stator coil 1a, or conformable material layer 7b as shown in Figure 2, described layer insulation pressing plate 7a also preferably integrally-built plate body structure.
Described notch fixed block 8 adopts the integral type notch fixed-block-architecture (FBA) of traditional structure in the present embodiment in addition, namely shares the design of same notch fixed block between upper strata stator coil 1a and lower floor stator coil 1b.
Outside the ring of insulating support 3, the stator lead insulating frame 12 for fixed stator lead-in wire 11 is also provided with, described stator lead insulating frame 12 and be fixed on generator pit (not illustrating) between bracing frame 13 can be in axial sliding connection at the present embodiment.Filled by conformable material between stator lead 11 described in the present embodiment, and stator lead 11, insulating frame 12 and insulating support 3 tied up to be connected be overall structure, described stator lead 11 position between insulating frame 12 and insulating support 3 with washing ripple rope.
The insulating frame of stator lead described in the present embodiment 12 and bracing frame 13 can be in axial sliding connection by axial location bolt 13a.The concrete structure of this axial location bolt 13a is that screw rod is fixed on bracing frame 13, stator lead insulating frame 12 is provided with the hole slightly larger than screw rod makes it be assemblied on screw rod, the length of stator lead insulating frame 12 place spiro rod section is greater than its thickness, makes it have the ability moved axially.In addition, this can be in axial sliding connection and can also be realized by sliding bearing.
The insulating frame of stator lead described in the utility model 12 is also the design of " L " type, and it is used for stator lead 11 and fixes, and another side is used for being connected with bracing frame 13.
embodiment 4
The present embodiment is substantially identical with the structure of embodiment 3, difference is that upper strata stator coil 1a and lower floor stator coil 1b arranges independently notch fixed block 8 respectively, namely a notch fixed block 8 is set between upper strata stator coil 1a, and another notch fixed block 8 is set between lower floor stator coil 1b, its concrete structure is as shown in Figure 4.
The fixed block of notch described in the present embodiment 8 is formed by colligation by three wedge type blocks.The overall notch fixed block that this independently notch fixed block 8 structure is fixing compared to existing pressing plate, has the simple advantage of structure.
embodiment 5
The structure basic simlarity of the present embodiment and embodiment 2, embodiment 3 and embodiment 4, difference is to further enhance the support of stator coil and fixing on the basis of embodiment 2, embodiment 3 and embodiment 4, and its concrete scheme is:
Between primary insulation pressing plate 5 and notch fixed block 8 stator coil 1 straightway position on be also provided with the second fixed structure 9, stator coil 1 is fixed on insulation conical ring 2 by the second fixed structure 9.In the present embodiment, the second fixed structure 9 adopts the binding structure washing the colligation of ripple rope.In addition insulation blanket stud also can be adopted to carry out the structure of pressing.
In addition, inside the nose ring of described stator coil 1, pushing out ring 10 is provided with in nose to strengthen the constant intensity of end further.In described nose, pushing out ring 10 is that tightening structure 10a by being arranged on insulating support 3 is tightened in stator coil 1 nose.In the present embodiment, tightening structure 10a comprises the collar being placed on pushing out ring 10 in nose, and the collar is by being arranged at can the bolt of radiai adjustment carry out regulating and straining on insulating support 3.
In nose described in further the present embodiment, pushing out ring 10 is the circuluses with opening, makes diameter adjustable to improve the crystallized ability in radial cinching process.
The connector of the utility model " L " type connects insulating support and stator end, " L " type structure had by connector realizes the slippage ability of generator unit end, effectively avoid wearing and tearing in slipping compared to there is sliding contact surface Sliding Structures, and " L " structure also makes radial space take is effectively reduced; Can be in axial sliding connection between described stator lead insulating frame and bracing frame in addition, make can be in axial sliding connection formation 2 slip points at the connector of " L " type with this, ensure that the reliable of stator end sliding design, can be in axial sliding connection between stator lead insulating frame and bracing frame simultaneously and have that force of sliding friction is little, little advantage of wearing and tearing, and the advantage that maintainability performance is good.
Simultaneously, in the fixed structure of described generator stator end insulating support, insulation conical ring is fixed on motor stator end by insulating frame, and adopt pushing out ring in primary insulation pressing plate and pressing plate coil to be fixed on the scheme of insulation conical ring, coil is fixed on scheme on insulation conical ring by interior pushing out ring multiple compared to existing employing, has the simple advantage of structure, and it is firm to ensure that stator coil is fixed, can effectively prevent stator from encouraging end end mass comparatively greatly, the problem that slippage is not smooth; Also further position between notch fixed block and primary insulation pressing plate is provided with the second fixed structure in addition, the line part of stator coil is fixed on insulation conical ring, additionally by inside the nose ring of stator coil, pushing out ring in nose is set, ensure that stator coil nose assembles firm, in this nose, pushing out ring is strained by the tightening structure be arranged on insulating support simultaneously, ensure that its reliability.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. the fixed structure of generator stator end insulating support, is characterized in that: comprise insulating support (3), and described insulating support (3) is connected to the end of stator by the connector (3a) of " L " type.
2. the fixed structure of generator stator end insulating support as claimed in claim 1, it is characterized in that: also comprise the stator lead insulating frame (12) for fixed stator lead-in wire (11), described stator lead insulating frame (12) and be fixed on generator pit between bracing frame (13) can be in axial sliding connection.
3. the fixed structure of generator stator end insulating support as claimed in claim 2, is characterized in that: described stator lead insulating frame (12), stator lead (11) and insulating support (3) are connected for overall structure.
4. the fixed structure of generator stator end insulating support as claimed in claim 2, is characterized in that: described stator lead insulating frame (12) and bracing frame (13) can be in axial sliding connection by axial location bolt (13a).
5. the fixed structure of generator stator end insulating support as claimed in claim 1, it is characterized in that: the stator coil (1) also comprising generator, with the insulation conical ring (2) fixed for stator coil (1), described insulation conical ring (2) is arranged on insulating support (3), and described stator coil (1) is fixed in insulation conical ring (2) by the primary insulation pressing plate (5) be positioned at inside ring.
6. the fixed structure of generator stator end insulating support as claimed in claim 5, is characterized in that: described primary insulation pressing plate (5) is integrally-built plate body, and is connected with insulation conical ring (2) by the insulation blanket stud (5a) on plate body.
7. the fixed structure of generator stator end insulating support as claimed in claim 5, it is characterized in that: described stator coil (1) comprises upper strata stator coil (1a) and lower floor's stator coil (1b), described upper strata stator coil (1a) and lower floor's stator coil (1b) arrange independently notch fixed block (8) respectively.
8. the fixed structure of generator stator end insulating support as claimed in claim 5, it is characterized in that: also comprise the second fixed structure (9) for being fixed on by stator coil (1) in insulation conical ring (2), described second fixed structure (9) is positioned between primary insulation pressing plate (5) and notch fixed block (8).
9. the fixed structure of generator stator end insulating support as claimed in claim 5, it is characterized in that: also comprise pushing out ring (10) in the nose for being fixed by stator coil (1) nose, in described nose, pushing out ring (10) is arranged at inside the ring of stator coil (1) nose.
10. the fixed structure of generator stator end insulating support as claimed in claim 9, described insulating support (3) is provided with tightening structure (10a), in nose, pushing out ring (10) is tightened in the nose of stator coil (1) by tightening structure (10a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739879.1U CN204947769U (en) | 2015-09-23 | 2015-09-23 | The fixed structure of generator stator end insulating support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739879.1U CN204947769U (en) | 2015-09-23 | 2015-09-23 | The fixed structure of generator stator end insulating support |
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| Publication Number | Publication Date |
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| CN204947769U true CN204947769U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520739879.1U Active CN204947769U (en) | 2015-09-23 | 2015-09-23 | The fixed structure of generator stator end insulating support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968576A (en) * | 2021-04-13 | 2021-06-15 | 哈尔滨电机厂有限责任公司 | Turbine generator stator end nose end loosening treatment process method |
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2015
- 2015-09-23 CN CN201520739879.1U patent/CN204947769U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968576A (en) * | 2021-04-13 | 2021-06-15 | 哈尔滨电机厂有限责任公司 | Turbine generator stator end nose end loosening treatment process method |
| CN112968576B (en) * | 2021-04-13 | 2022-10-25 | 哈尔滨电机厂有限责任公司 | Turbine generator stator end nose end loosening treatment process method |
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