CN104389881A - Stator bolts for eliminating exciter stator deformation and application method of stator bolts - Google Patents
Stator bolts for eliminating exciter stator deformation and application method of stator bolts Download PDFInfo
- Publication number
- CN104389881A CN104389881A CN201410634956.7A CN201410634956A CN104389881A CN 104389881 A CN104389881 A CN 104389881A CN 201410634956 A CN201410634956 A CN 201410634956A CN 104389881 A CN104389881 A CN 104389881A
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- stator
- iron core
- bolts
- bolt
- shaft part
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- 238000000034 method Methods 0.000 title claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 100
- 239000003973 paint Substances 0.000 claims description 29
- 230000011218 segmentation Effects 0.000 claims description 27
- 238000007598 dipping method Methods 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 14
- 238000004080 punching Methods 0.000 claims description 12
- 239000004922 lacquer Substances 0.000 claims description 10
- 239000000047 product Substances 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 7
- 239000011265 semifinished product Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 230000008030 elimination Effects 0.000 claims description 4
- 238000003379 elimination reaction Methods 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 4
- 230000000391 smoking effect Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
Abstract
The invention relates to stator bolts for eliminating exciter stator deformation and an application method of stator bolts, which relate to the technology of exciter stator manufacturing, and solve the problem that the existing stator is easy to deform. The stator bolts are reamed hole bolts, wherein a screw rod reamed shaft is formed by a plurality of subsections; the sections have the same structure and respectively comprise a reamed shaft section and a chamfering-shaped shaft section; each reamed shaft section is the shaft section matched with the dimension of an iron core bolt hole and makes contact with the stator iron core bolt hole; the diameter of the top part of each chamfering-shaped shaft section is matched with the diameter of the reamed shaft section, and each chamfering-shaped shaft section is inclined downwards according to a chamfer alpha so as to be in a turbination shape from the top part, is not in contact with the stator iron core bolt hole, and has the length smaller than the length of the reamed shaft section. According to the stator bolt for eliminating exciter stator deformation and the application method of the stator bolts, the traditional manufacturing manner of the exciter stator is improved, the four reamed hole bolts on four corners of the iron core of the stator adopt the structure with same opposite angles and different adjacent angles, the occurrence of the phenomenon of large deformation due to large clearance between the stator iron core and the bolt holes is reduced, the precision error after the stator iron core is finished is reduced, and the product quality is improved.
Description
Technical field
The present invention relates to exciter stator manufacturing technology, refer in particular to and a kind ofly in exciter manufacture, eliminate the stator bolts of exciter stator distortion and manufacturing the using method in exciter stator.
Background technique
The flow process of existing conventional exciter stator manufacture is:
Stator punching is stacked together according to stator punching internal diameter by column frock;
Adjusted the form and position tolerance of stator punching stacked group by groove lining bar after, many places spot welding is carried out to the stator punching stacked, roughly fixes, avoid connecting soldering iron core and deform because welding heat is large; After iron core is fixed substantially, then with argon arc welding, many are carried out to it and be welded, make stator iron core;
Stator iron core is transported to machining sector, carries out the operation of embedding electromagnetic wire, make stator base;
Stator base is put into suspender to put into baking oven again and smoke in advance;
Stator base after preliminary drying putting into dipping paint cylinder in suspender together with suspender, and overall dipping lacquer hangs out to be placed to after general half an hour and no longer drips paint, and then put into baking oven and smoke, and takes out and also spray paint to it, form stator product after smoking.
In the process of exciter assembling, operator often finds that exciter stator is out of shape, and its coaxality and the equal deviation of straightness accuracy are comparatively large, sometimes can reach more than one millimeter.Now need to correct it, be through dipping lacquer and smoke process due to the stator becoming product, the thick film that after the solidification of dipping lacquer and dipping lacquer, paint film is formed, this trimming process is difficult especially, and this is very large to the Accuracy of stator.
Distortion main cause in exciter stator manufacture process is as follows:
1, stator punching stacks in welding, although be fixed through welding, the part of this welding is lower relative to the iron core intensity of entirety, moreover the place of welding also can be out of shape, so can produce relativity shift between stator punching;
2, in the transportation process of each operation, due to the direction of placing and jolt, also have relativity shift between the stator punching after welding, the iron core distortion making to make;
3, at dipping lacquer and smoke in process, the difference how many due to each position dipping lacquer can produce differential force, affects the precision of iron core, particularly smokes in process, the distortion that iron core is heated and produces.
4, the fixing bolt of tradition iron core corner is plain bolt, the gap of its bolt and bolt hole is larger, general in two millimeter, if the stressed meeting of iron core makes core stamping offset, produce that relative displacement is maximum can, to a millimeter, cause iron core to be out of shape, and the bolt head end face of plain bolt cannot ensure vertical with screw portion, iron core can be out of shape because bolt head produces deflecting force to iron core in the process screwing plain bolt.
For all the foregoing reasons, iron core can be made to produce larger distortion in the fabrication process, this distortion can bring the generation of not convenient and useless, the substandard products of follow-up assembly process.
In sum, existing exciter localization method, cannot reach the requirement manufacturing high-quality stator product.
Summary of the invention
The object of the invention is to solve prior art Problems existing, a kind of stator bolts can eliminating exciter stator distortion in exciter manufacture process is provided.
Another object of the present invention is to solve prior art Problems existing, provides a kind of stator bolts of above-mentioned elimination exciter stator distortion manufacturing the using method in exciter stator.
The object of the invention is to be achieved through the following technical solutions:
Eliminate a stator bolts for exciter stator distortion, it is characterized in that:
Described stator bolts refers to the fixing bolt of fixed excitation machine stator iron core, is a kind of hinged bolts, by bolt head, and screw rod articulation axle and bolt thread section composition, wherein screw rod articulation axle is connected with bolt head, and bolt thread section is connected with screw rod articulation axle;
Described screw rod articulation axle and stator iron core bolt hole match, it is formed by several segmentation, and each segmental structure is identical, the chamfering oblique crank Z section respectively comprising articulation shaft part and be connected with articulation shaft part, articulation shaft part is wherein the shaft part coordinating iron core bolt hole size, contacts with stator iron core bolt hole; Chamfering oblique crank Z section top diameter wherein and articulation shaft section diameter match, and it is downward-sloping in turbination by chamfering α from top, and chamfering oblique crank Z Duan Buyu stator iron core bolt hole contacts, and its length is less than the length of articulation shaft part;
The total length of described screw rod articulation axle is longer than the length of described stator iron core.
The length of described articulation shaft part is 5mm, and the length of described chamfering oblique crank Z section is 4.8mm.
Described chamfering α angle is 12 degree.
The bolt head of described stator bolts is decided to be bolt bottom, and bolt thread section is decided to be bolt top; Each segmentation middle and upper part shaft part of described articulation shaft part is articulation shaft part, and bottom shaft part is the hinged bolts of chamfering oblique crank Z segment structure is a type hinged bolts.
The bolt head of described stator bolts is decided to be bolt bottom, and bolt thread section is decided to be bolt top; Each segmentation middle and upper part shaft part of described articulation shaft part is chamfering oblique crank Z section, and bottom shaft part is the hinged bolts of articulation shaft part structure is two type hinged bolts.
Another object of the present invention is achieved through the following technical solutions:
Eliminate a using method for the stator bolts of exciter stator distortion, it is characterized in that comprising following steps:
S1, stacks into stator iron core original state by stator punching by column frock, adopts groove lining bar to arrange stator iron core, locate, reaches the tolerance required by iron core;
S2, carries out many places spot welding to the stator iron core being in original state, tentatively fixing to it, then carries out many with argon arc welding to it and is welded, make stator iron core, remove groove lining bar;
S3, inserts a described type hinged bolts and two type hinged bolts respectively in the bolt hole that the corner of stator iron core is formed, and four hinged bolts of corner adopt the identical and adjacent different structure in diagonal angle:
Described hinged bolts is by bolt head, screw rod articulation axle and bolt thread section composition, wherein screw rod articulation axle is connected with bolt head, and bolt thread section is connected with screw rod articulation axle, and the bolt head of described stator bolts is decided to be bolt bottom, bolt thread section is decided to be bolt top;
2 the identical hinged bolts used in a diagonal angle are employing one type hinged bolts, and its screw rod articulation axle is formed by several segmentation, and the top shaft part of each segmentation is articulation shaft part, and bottom shaft part is chamfering oblique crank Z section;
2 the identical hinged bolts used in another diagonal angle are employing two type hinged bolts, and its screw rod articulation axle is formed by several segmentation, and the top shaft part of each segmentation is chamfering oblique crank Z section, and bottom shaft part is articulation shaft part;
Articulation shaft part in each segmentation is the shaft part coordinating iron core bolt hole size, and chamfering oblique crank Z section top diameter and articulation shaft section diameter match, and it is downward-sloping in turbination by chamfering α from top, and it does not contact with bolt hole;
Described chamfering oblique crank Z segment length is less than the length of articulation shaft part;
The total length of described screw rod articulation axle is longer than the length of described stator iron core;
S4, stator iron core embeds electromagnetic wire, makes stator base;
S5, puts into baking oven by stator base and smokes in advance;
S6, the overall dipping lacquer of dipping paint cylinder put into by stator base after preliminary drying, taking-up is placed to no longer drips paint, and then put into baking oven and smoke, take out after smoking, and rotate each hinged bolts with air pump spanner immediately, the insulated paint on bolt is separated with the insulated paint of iron core and departs from, form NA cooling paint part, stator base has now become semi-finished product stator;
S7, sprays paint to semi-finished product stator, makes stator product, waits to be installed, first removes hinged bolts assemble when being assembled to generator.
The length of described articulation shaft part is 5mm, and the length of described chamfering oblique crank Z section is 4.8mm.
Described chamfering α angle is 12 degree.
Beneficial effect of the present invention:
Present invention improves over the manufacture of traditional exciter stator, the iron core corner of stator replaces plain bolt with hinged bolts, and this hinged bolts adopts segmental structure, decreases because stator iron core and bolt hole gap are out of shape large situation greatly.In addition, after dipping lacquer in manufacture stator is smoked, hinged bolts is rotated as early as possible with air pump spanner, the insulated paint of the insulated paint on bolt and iron core is departed from, can reduce like this stator iron core complete after accuracy error problem, reduce the correction to iron core, improve manufacture efficiency, improve quality of product.
Its structure is simple, easy to maintenance, is easy to change, and safe and reliable, reduces maintenance cost, has longer working life.
For further illustrating above-mentioned purpose of the present invention, structural feature and effect, below with reference to accompanying drawing, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of a type hinged bolts in stator bolts of the present invention;
Fig. 2 is the structural representation of two type hinged bolts in stator bolts of the present invention;
Fig. 3 is the using method flow chart of the hinged bolts shown in Fig. 1, Fig. 2 in manufacture exciter stator.
Embodiment
Accompanying drawing below in conjunction with embodiment is described in detail to the specific embodiment of the present invention.
The stator bolts of elimination exciter stator distortion of the present invention refers to the fixing bolt of fixed excitation machine stator iron core.
Have hinged bolts in bolt standard piece, its diameter of axle and bolt hole fit dimension are different and different according to large small axle diameter, but the fit dimension in bolt and hole is substantially within several.If the bolt of fixed excitation machine stator iron core adopts this type of standard piece, because between hinged bolts and bolt hole, gap is little, can cement after immersing insulated paint, cannot bolt be exited.
Stator bolts of the present invention is the hinged bolts being applicable to stator iron core, and it is by bolt head, screw rod articulation axle and bolt thread section composition, and wherein screw rod articulation axle is connected with bolt head, and bolt thread section is connected with screw rod articulation axle; The bolt head of hinged bolts of the present invention, bolt thread section are identical with the bolt head in plain bolt, bolt thread segment structure respectively, bolt thread section is wherein the exposed portion after bolt inserts iron core, it is with the nut matched, and the entirety for iron core is fixed.
The screw rod articulation axle of hinged bolts of the present invention is different from the articulation axle of common hinged bolts, screw rod articulation axle and the stator iron core bolt hole of hinged bolts of the present invention match, it forms (example by several segmentation, in Fig. 1-Fig. 2, screw rod articulation axle is formed by 8 segmentations), according to the length changeable number of fragments of iron core.Each segmental structure is identical, the chamfering oblique crank Z section respectively comprising articulation shaft part and be connected with articulation shaft part, and articulation shaft part is wherein the shaft part coordinating iron core bolt hole size, and contact with stator iron core bolt hole, its length is 5mm; Chamfering oblique crank Z section top diameter wherein and articulation shaft section diameter match, it is downward-sloping in turbination by chamfering α from top, chamfering oblique crank Z Duan Buyu stator iron core bolt hole contacts, its length is 4.8mm, be slightly less than the length of articulation shaft part, can ensure the part that hinged bolts contacts with stator iron core like this, overall structure Inner bolt holes axially all contacts with articulation shaft part, and iron core can not be out of shape; According to viscosity and the cooled hardness of insulated paint, the chamfering α angle of chamfering oblique crank Z section is comparatively suitable at 12 degree.Do not affect articulation shaft part in so not only make insulated paint enter space that chamfering oblique crank Z section and stator iron core formed to use, can not affect the intensity of whole bolt articulation axle yet.
The total length of described screw rod articulation axle is longer than the length of described stator iron core.
Design chamfering oblique crank Z section can reduce the contact length scope between screw rod articulation axle and stator iron core bolt hole, and bolt can be facilitated to extract out from articulation hole, particularly after paint-dipping drying.
The structure that stator bolts of the present invention is different according to the upper-lower position of articulation shaft part and chamfering oblique crank Z section in each segmentation in screw rod articulation axle, is divided into a type hinged bolts and two type hinged bolts, is described respectively below.
The bolt head of stator bolts is decided to be bolt bottom, and bolt thread section is decided to be bolt top.
Shown in Fig. 1 is a type hinged bolts, and it is by bolt head 11, and screw rod articulation axle 12 and bolt thread section 13 form, and wherein the structure of the screw rod articulation axle 12 of hinged bolts is as follows:
Screw rod articulation axle 12 and stator iron core bolt hole match, and formed by several segmentation, each segmental structure is identical, and wherein top shaft part is articulation shaft part 121, and the length of articulation shaft part 121 is 5mm; Bottom shaft part is downward-sloping in obconic chamfering oblique crank Z section 122 by chamfering α from the bottom of articulation shaft part 121, and the length of chamfering oblique crank Z section 122 is 4.8mm.
Shown in Fig. 2 is two type hinged bolts, and it is by bolt head 21, and screw rod articulation axle 22 and bolt thread section 23 form, and wherein the structure of the screw rod articulation axle 22 of hinged bolts is as follows:
Screw rod articulation axle 12 and stator iron core bolt hole match, and formed by several segmentation, each segmental structure is identical, and its middle and lower part shaft part is articulation shaft part 221, and the length of articulation shaft part 221 is 5mm; Top shaft part is chamfering oblique crank Z section 222, chamfering oblique crank Z section 222 top diameter and articulation shaft part 221 diameter compatible, and it is downward-sloping in turbination by chamfering α from top, and the length of chamfering oblique crank Z section 122 is 4.8mm.
Below the using method of stator bolts in manufacture exciter stator of above-mentioned elimination exciter stator distortion is described.
S1, stacks into stator iron core original state by stator punching by column frock, and adopt groove lining bar to arrange stator iron core, reach the tolerance required by iron core, groove lining bar, in the position of stator iron core internal fixtion punching, is avoided misplacing between punching.
S2, carries out many places spot welding to the stator iron core being in original state, tentatively fixing to it, then carries out many with argon arc welding to it and is welded, make stator iron core, remove groove lining bar.
S3, inserts a described type hinged bolts and two type hinged bolts respectively in the bolt hole that the corner of stator iron core is formed, and four hinged bolts of corner adopt the identical and adjacent different structure in diagonal angle:
2 the identical hinged bolts used in one of them diagonal angle adopt the type hinged bolts shown in above-mentioned Fig. 1, its screw rod articulation axle 12 is formed by several segmentation, the top shaft part of each segmentation is articulation shaft part 121, bottom shaft part is chamfering oblique crank Z section 122, each segmentation only has articulation shaft part 121 to be wherein the shaft parts coordinating iron core bolt hole size, and chamfering oblique crank Z section 122 does not contact with bolt hole; The total length of described screw rod articulation axle 12 is longer than the length of stator iron core original state, to ensure that each thickness place of iron core all has hinged bolts to fix iron core.
2 the identical hinged bolts wherein used in another diagonal angle adopt two type hinged bolts shown in above-mentioned Fig. 2, its screw rod articulation axle 22 is formed by several segmentation, the top shaft part of each segmentation is chamfering oblique crank Z section 222, bottom shaft part is articulation shaft part 221, equally, each segmentation only has articulation shaft part 221 to be wherein the shaft parts coordinating iron core bolt hole size, and chamfering oblique crank Z section 222 does not contact with bolt hole; The total length of described screw rod articulation axle 22 is longer than the length of stator iron core original state, to ensure that each thickness place of iron core all has hinged bolts to fix iron core;
Four hinged bolts of corner adopt the identical and adjacent different structure in diagonal angle to make iron core in same axial positions, and pair of horns place bolt is articulation shaft part, and another is chamfering shape bolt to corner bolt.The axle center of articulation bolt is vertical with the lower plane of bolt head, and this ensure that bolt iron core and bolt head in the process of tightening are fitted, the axle center of bolt is vertical with iron core.Avoid the slippage between core stamping, the plane of iron core and axle center off plumb situation.
Due in manufacture bolt process, articulation shaft part and chamfering oblique crank Z section be concentric.Therefore when pair of horns is articulation shaft part fitted bolt hole, bolt hole and articulation shaft part gap very little basic in several, the side-play amount of iron core at this shaft part place is also within the scope of this.Even if separate in another diagonal angle chamfering oblique crank Z section and bolt hole, iron core also can not be out of shape.At the chamfering oblique crank Z section place that this diagonal angle articulation shaft part is adjacent, this chamfering oblique crank Z section does not contact with bolt hole, but diagonal angle bolt hole is coordinated by articulation shaft part with corresponding bolt.Iron core, because bolt hole is with articulation shaft part gap is little and amount of deformation is little, and because articulation shaft part and chamfering oblique crank Z section are coaxial, therefore is fixed iron core at the position Zong You diagonal angle articulation shaft part of chamfering oblique crank Z section cooperation, avoids the distortion of iron core.
In the present invention, bolt head and the screw flight section of four hinged bolts are identical with the bolt head in common hinged bolts, screw flight segment structure respectively.
S4, stator iron core embeds electromagnetic wire, makes stator base;
S5, puts into baking oven by stator base and smokes in advance;
S6, the overall dipping lacquer of dipping paint cylinder put into by stator base after preliminary drying, taking-up is placed to no longer drips paint, and then put into baking oven and smoke, take out after smoking, and rotate each hinged bolts with air pump spanner immediately, insulated paint on bolt is separated with the insulated paint of iron core depart from, form NA cooling paint part, can not be difficult to remove bolt because of paint solidification like this after insulated paint cooling, stator base has now become semi-finished product stator;
S7, sprays paint to semi-finished product stator, makes stator product; After the completion of stator product, placement etc. are to be installed, first remove hinged bolts assemble when being assembled to generator.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to object of the present invention is described, and be not used as limitation of the invention, as long as in essential scope of the present invention, the change of the above embodiment, modification all will be dropped in the scope of claim of the present invention.
Claims (8)
1. eliminate a stator bolts for exciter stator distortion, it is characterized in that:
Described stator bolts refers to the fixing bolt of fixed excitation machine stator iron core, is a kind of hinged bolts, by bolt head, and screw rod articulation axle and bolt thread section composition, wherein screw rod articulation axle is connected with bolt head, and bolt thread section is connected with screw rod articulation axle;
Described screw rod articulation axle and stator iron core bolt hole match, it is formed by several segmentation, and each segmental structure is identical, the chamfering oblique crank Z section respectively comprising articulation shaft part and be connected with articulation shaft part, articulation shaft part is wherein the shaft part coordinating iron core bolt hole size, contacts with stator iron core bolt hole; Chamfering oblique crank Z section top diameter wherein and articulation shaft section diameter match, and it is downward-sloping in turbination by chamfering α from top, and chamfering oblique crank Z Duan Buyu stator iron core bolt hole contacts, and its length is less than the length of articulation shaft part;
The total length of described screw rod articulation axle is longer than the length of described stator iron core.
2. the stator bolts eliminating exciter stator distortion as claimed in claim 1, is characterized in that:
The length of described articulation shaft part is 5mm, and the length of described chamfering oblique crank Z section is 4.8mm.
3. the stator bolts eliminating exciter stator distortion as claimed in claim 1, is characterized in that:
Described chamfering α angle is 12 degree.
4. the stator bolts of the elimination exciter stator distortion as described in any one of claim 1-3, is characterized in that:
The bolt head of described stator bolts is decided to be bolt bottom, and bolt thread section is decided to be bolt top; Each segmentation middle and upper part shaft part of described articulation shaft part is articulation shaft part, and bottom shaft part is the hinged bolts of chamfering oblique crank Z segment structure is a type hinged bolts.
5. the stator bolts eliminating exciter stator distortion as claimed in claim 1, is characterized in that:
The bolt head of described stator bolts is decided to be bolt bottom, and bolt thread section is decided to be bolt top; Each segmentation middle and upper part shaft part of described articulation shaft part is chamfering oblique crank Z section, and bottom shaft part is the hinged bolts of articulation shaft part structure is two type hinged bolts.
6. a kind of using method eliminating the stator bolts of exciter stator distortion as claimed in claim 1, is characterized in that comprising following steps:
S1, stacks into stator iron core original state by stator punching by column frock, adopts groove lining bar to arrange stator iron core, locate, reaches the tolerance required by iron core;
S2, carries out many places spot welding to the stator iron core being in original state, tentatively fixing to it, then carries out many with argon arc welding to it and is welded, make stator iron core, remove groove lining bar;
S3, inserts a described type hinged bolts and two type hinged bolts respectively in the bolt hole that the corner of stator iron core is formed, and four hinged bolts of corner adopt the identical and adjacent different structure in diagonal angle:
Described hinged bolts is by bolt head, screw rod articulation axle and bolt thread section composition, wherein screw rod articulation axle is connected with bolt head, and bolt thread section is connected with screw rod articulation axle, and the bolt head of described stator bolts is decided to be bolt bottom, bolt thread section is decided to be bolt top;
2 the identical hinged bolts used in a diagonal angle are employing one type hinged bolts, and its screw rod articulation axle is formed by several segmentation, and the top shaft part of each segmentation is articulation shaft part, and bottom shaft part is chamfering oblique crank Z section;
2 the identical hinged bolts used in another diagonal angle are employing two type hinged bolts, and its screw rod articulation axle is formed by several segmentation, and the top shaft part of each segmentation is chamfering oblique crank Z section, and bottom shaft part is articulation shaft part;
Articulation shaft part in each segmentation is the shaft part coordinating iron core bolt hole size, and chamfering oblique crank Z section top diameter and articulation shaft section diameter match, and it is downward-sloping in turbination by chamfering α from top, and it does not contact with bolt hole;
Described chamfering oblique crank Z segment length is less than the length of articulation shaft part;
The total length of described screw rod articulation axle is longer than the length of described stator iron core;
S4, stator iron core embeds electromagnetic wire, makes stator base;
S5, puts into baking oven by stator base and smokes in advance;
S6, the overall dipping lacquer of dipping paint cylinder put into by stator base after preliminary drying, taking-up is placed to no longer drips paint, and then put into baking oven and smoke, take out after smoking, and rotate each hinged bolts with air pump spanner immediately, the insulated paint on bolt is separated with the insulated paint of iron core and departs from, form NA cooling paint part, stator base has now become semi-finished product stator;
S7, sprays paint to semi-finished product stator, makes stator product, waits to be installed, first removes hinged bolts assemble when being assembled to generator.
7. as claimed in claim 1, it is characterized in that:
The length of described articulation shaft part is 5mm, and the length of described chamfering oblique crank Z section is 4.8mm.
8. as claimed in claim 1, it is characterized in that:
Described chamfering α angle is 12 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410634956.7A CN104389881B (en) | 2014-11-12 | 2014-11-12 | Eliminate stator bolts and the using method thereof of exciter stator deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410634956.7A CN104389881B (en) | 2014-11-12 | 2014-11-12 | Eliminate stator bolts and the using method thereof of exciter stator deformation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104389881A true CN104389881A (en) | 2015-03-04 |
| CN104389881B CN104389881B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410634956.7A Active CN104389881B (en) | 2014-11-12 | 2014-11-12 | Eliminate stator bolts and the using method thereof of exciter stator deformation |
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| CN (1) | CN104389881B (en) |
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| JP2005220963A (en) * | 2004-02-04 | 2005-08-18 | Drive It Waki:Kk | Anchor bolt |
| DE202004010451U1 (en) * | 2004-07-03 | 2005-11-10 | Richard Bergner Verbindungstechnik Gmbh & Co. Kg | Automotive cylinder head bolt has tapered tip reducing contact interface between tip thread and surrounding female thread |
| CN201461690U (en) * | 2009-07-21 | 2010-05-12 | 任旭辉 | Bolt |
| CN202531594U (en) * | 2012-02-08 | 2012-11-14 | 宁波市镇海金力高强度紧固件有限公司 | Reamed hole positioning bolt |
| CN204200807U (en) * | 2014-11-12 | 2015-03-11 | 上海马拉松·革新电气有限公司 | Eliminate the stator bolts of exciter stator distortion |
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2014
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033911A (en) * | 1987-11-16 | 1989-07-12 | 西屋电气公司 | Low torque nut to the stator core through bolt carries out fastening and fastening again method and apparatus |
| JP2005220963A (en) * | 2004-02-04 | 2005-08-18 | Drive It Waki:Kk | Anchor bolt |
| DE202004010451U1 (en) * | 2004-07-03 | 2005-11-10 | Richard Bergner Verbindungstechnik Gmbh & Co. Kg | Automotive cylinder head bolt has tapered tip reducing contact interface between tip thread and surrounding female thread |
| CN201461690U (en) * | 2009-07-21 | 2010-05-12 | 任旭辉 | Bolt |
| CN202531594U (en) * | 2012-02-08 | 2012-11-14 | 宁波市镇海金力高强度紧固件有限公司 | Reamed hole positioning bolt |
| CN204200807U (en) * | 2014-11-12 | 2015-03-11 | 上海马拉松·革新电气有限公司 | Eliminate the stator bolts of exciter stator distortion |
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| CN104389881B (en) | 2016-08-17 |
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