CN101404431A - Pole core assembly technique for punching quadrant iron type through-flow generator - Google Patents
Pole core assembly technique for punching quadrant iron type through-flow generator Download PDFInfo
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- CN101404431A CN101404431A CNA2008100649878A CN200810064987A CN101404431A CN 101404431 A CN101404431 A CN 101404431A CN A2008100649878 A CNA2008100649878 A CN A2008100649878A CN 200810064987 A CN200810064987 A CN 200810064987A CN 101404431 A CN101404431 A CN 101404431A
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Abstract
The invention provides an assembly technology of a pole core of a punching square steel type through-flow generator. The pole core is compressed in a frame hydraulic pressure hold-down gear with a hydraulic pressure jack which can reset; fabrication holes are arranged on the punching square steel and a damping bar by the hold-down gear and an iron core is jacked into the fabrication holes which are assembled on the iron core. The punching square steel and an end bevel of a pressing board of the pole core are welded 20 percent. After the end bevel is cooled to room temperature, oil pressure is discharged so as to lead the pole core to be lifted out from the hold-down gear, then the full welding is conducted three times respectively on the end bevel. The assembly technology in the invention has the advantages of reasonable and concise flow, convenient installation and operation, high ratio of the high-class products and high production efficiency and the like; and the frame hydraulic pressure hold-down gear has the advantages of compact shape structure, simple and easy operation and low manufacturing cost, etc.
Description
Technical field
The present invention relates to a kind of pole core assembly technique of punching square steel formula cross-flow generator.
Background technology
Through-flow unit pole core structure was welded into integral body for the riveted joint of boots segment section and with magnetic pole square steel dress in the past, and structural disadvantages is that integral rigidity unshakable in one's determination and form and position tolerance are relatively poor, assembly technology flow process very complicated, and dress weldering waste product repair rate is higher, and production efficiency is lower.The pole core of punching square steel formula cross-flow generator has solved this respect technical barrier, its design feature: punching square steel and pole lamination fit-up gap are less, and weld with two ends unshakable in one's determination pole end-plate groove, have guaranteed Geometrical Tolerance Principle unshakable in one's determination.Several and the yoke that afterbody closed assembly unshakable in one's determination goes out is closing square hole, and the last several handles of punching Fang Gang close screw and are positioned at closing the square hole centre position.Compress unshakable in one's determination with duplex pull rod stretcher hold down gag and pole lamination boots portion lamination assembly technology up by tradition, can't intuitively adjust and measure afterbody unshakable in one's determination, can not guarantee that punching Fang Gang goes up closing screw and unshakable in one's determination going up closing square hole position degree closing square hole size and position degree.Duplex pull rod stretcher hold down gag Center of Pressure does not overlap with the pole lamination position of centre of gravity, pole sheet pressure unshakable in one's determination is inhomogeneous, it is relatively poor to compress the pole core form and position tolerance, punching square steel and amortisseur bar are difficult to be assemblied on the iron core, duplex pull rod stretcher hold down gag appearance structure size is bigger, and manufacturing cost is higher.
The content of invention
The present invention provides a kind of assurance pole core assembly quality and form and position tolerance, the pole core assembly technology of the punching square steel formula cross-flow generator of enhancing productivity.Technical scheme of the present invention is: a kind of pole core assembly technology of punching square steel formula cross-flow generator, punching square steel and amortisseur bar assembly technology: (1) is adopted and compress iron core in hold down gag, in the closed-in construction hydraulic compressing device, the pole lamination afterbody up, with punching Zhan portion and side location lamination, shaping and adjustment, guarantee that form and position tolerance unshakable in one's determination and several handle close square hole position dimension and position degree, compress iron core with hydraulic jack, with punching square steel and amortisseur bar by the fabrication hole on the hold down gag, head into iron core and be assemblied on the iron core with screw jack: punching square steel and amortisseur bar and individual pole lamination fit clearance 0.10～0.25mm, hydraulic jack piston and preceding pressure head thread connection, the Center of Pressure of pressure head overlaps with the pole lamination position of centre of gravity before guaranteeing, under the core pressing state, adjust punching Fang Gang and utmost point punching fit clearance 0.10～0.25mm, guarantee on it that several handles close screw and are positioned at corresponding handle unshakable in one's determination and close the square hole centre position, with punching square steel and pole end-plate groove welding 20%, adopt welding rod with punching square steel and pole end-plate joint welding.Adopt pole lamination afterbody lamination and in hold down gag, compressing under the state unshakable in one's determination up, form and position tolerance unshakable in one's determination is better, easier punching Fang Gang and the amortisseur bar of penetrating, more can intuitively adjust the last several handles of punching Fang Gang closes screw and is positioned at corresponding handle unshakable in one's determination and closes the square hole centre position, lamination and punching Fang Gang compare with the iron core assembling outside hold down gag down with the magnetic pole afterbody, it is rationally succinct that this assembling has technological process, and installation is adjusted easy to operate.The relative duplex pull rod stretcher of frame hydraulic compressing device hold down gag has the contour structures compactness, and is simple to operation, the characteristics of low cost of manufacture.(2) after the groove cooling room temperature, lay down the hydraulic jack oil pressure, pole core is hung out the core pressing device, be placed on the platform sleeper, by welding conditions CO
2The gas shielded arc welding full weld divides the full weld groove three times, with punching square steel and pole end-plate full weld.
Description of drawings
Fig. 1 is the pole core structural representation and the lamination principle schematic of punching square steel formula cross-flow generator.
Fig. 2 is the schematic diagram of the pole core of punching square steel formula cross-flow generator in frame hydraulic compressing device compression fit.
Embodiment
A kind of pole core assembly technology of punching square steel formula cross-flow generator, it is characterized in that: said method comprises following processing step:
(1) employing compresses iron core in hold down gag.In the closed-in construction hydraulic compressing device, the pole lamination afterbody up, with punching Zhan portion and side location lamination, shaping and adjustment, guarantee that form and position tolerance unshakable in one's determination and several handle close square hole position dimension and position degree, compress iron core with hydraulic jack, with punching square steel and amortisseur bar by the fabrication hole on the hold down gag, head into iron core and be assemblied on the iron core with screw jack: punching square steel and amortisseur bar and individual pole lamination fit clearance 0.10～0.25mm, hydraulic jack piston and preceding pressure head thread connection, the Center of Pressure of pressure head overlaps with the pole lamination position of centre of gravity before guaranteeing, under the core pressing state, adjust punching Fang Gang and utmost point punching fit clearance 0.10～0.25mm, guarantee on it that several handles close screw and are positioned at corresponding handle unshakable in one's determination and close the square hole centre position, with punching square steel and pole end-plate groove welding 20%, adopt welding rod with punching square steel and pole end-plate joint welding; (2) after the groove cooling room temperature, lay down the hydraulic jack oil pressure, pole core is hung out the core pressing device, be placed on the platform sleeper, by welding conditions CO
2The gas shielded arc welding full weld divides the full weld groove three times, with punching square steel and pole end-plate full weld.
A kind of as shown in Figure 1 core construction of punching square steel formula cross-flow generator, two ends are pole end-plate, and the centre is a pole lamination 1, in the middle of pole end-plate and the pole lamination square hole is arranged, and there is the damping cylindrical void in boots portion.Keep under the certain pressure at iron core, amortisseur bar 4 inserts by damping cylindrical void on the pole end-plate and is assemblied on the iron core, and punching square steel 2 inserts unshakable in one's determination by the two ends pole end-plate, and welds with pole end-plate.Pole lamination 1 is in frame hold down gag 6, form the laminations location with two boots portion positioning strips 3 on the hold down gag and sidepiece positioning strip 4, boots portion positioning strip contact area is less, can less pole lamination and the frictional force of carcass, the punching afterbody is lamination up, and the afterbody lamination stack goes out several handles and closes square hole 7 on iron core.
Iron core compresses and assembles in the frame hydraulic compressing device among the present invention as shown in Figure 2, and after lamination, shaping and the measurement passed examination, reinforcement 9 is a rigidity of strengthening carcass to pole lamination 1 on the frame hold down gag 6 in frame hold down gag 6.Compress pole lamination 1 with the pressure head 13 before pressure head item 12, the assembled iron core behind the carcass upper iron core and the hydraulic jack 11 that can reset by pole end-plate 14, the technology square hole 8 that punching square steel 2 and amortisseur bar 4 usefulness screw jack are penetrated by punching Fang Gang on the frame carcass heads into and is assemblied on the iron core, adjustment punching Fang Gang guarantees that the several handles on it close screw and are positioned at afterbody unshakable in one's determination closing the square hole centre position, the technology square hole 10 of welding Fang Gang on the technology square hole 8 that penetrates by punching Fang Gang with welding rod, the frame carcass, groove 20% between welding punching side firm 2 and the pole end-plate 14.Bevel for welding cooling room temperature, the hydraulic jack that can reset 11 oil pressure are laid down, and closing square hole by the last several handles of iron core, that joint hinge is put together on punching side is firm 2, pole core is hung out hold down gag 6, groove between full weld punching side firm 2 and the pole end-plate 14.
Need with equipment:
● the frame hold down gag
● electric hydraulic pump and pressure duct
● screw jack
● CO
2Gas shielded arc welding
● dc welding machine
● the 3m leveling ruler
● the magnetic pole lifting tool
● trim panel
Concrete processing step:
● adjust frame hydraulic compressing device floor level≤0.1mm/m, frame hydraulic compressing device unshakable in one's determination is fixed on two each and every one the contour square chests.
● check forward and backward pressure head and frame hold down gag pressure tire base plate perpendicularity≤0.2mm with curved chi.
● hydraulic jack is connected with pressure duct with electric oil pump, drive oil pump, check whether the motion of hydraulic jack piston is flexible.
● at frame hydraulic compressing device internal magnetic pole punching afterbody up, with punching Zhan portion and side location lamination, and shaping.By drawing, fold the pole lamination that closes groove into afterbody band handle, fold out several handles and close square hole in corresponding position unshakable in one's determination.In the lamination, punching burr direction unanimity with the item No. punching, uses same bat punching until using up, and uses another bat punching again.
● core lamination length and after closing square hole and meeting the drawing requirement, drive the oil pump pressurization, according to pole core closed assembly experience, select the about 5～6Mpa of pole lamination pole sheet pressure.
N＝S
1P
N-jack required thrust
S
1-pole lamination effective area
P-pole lamination pole sheet pressure
P1-jack oil pressure
S-jack piston area
● measure each size unshakable in one's determination under pressure, decision increases and decreases punching quantity and adds compensation punching quantity, meets the drawing requirement until measure each size unshakable in one's determination and geometry under pressure.
● the firm material in punching side is the 16Mn low-carbon alloy steel, and the blanking after annealing discharges stress, at 4m planer force plane four sides, every face stays 2mm allowance, bores with drill jig and attacks screw on it, again the try plane four sides, every face stays 0.10mm grinding amount, at big plain grinding bed mill square steel four sides.Square steel roughness and size form and position tolerance are better after the grinding, can guarantee better that punching Fang Gang penetrates iron core.
● under the core pressing state, punching square steel and amortisseur bar are headed into iron core with screw jack respectively, adjust the square steel position, guarantee that the position of screw on iron core requires to conform to drawing on the square steel.
● under the core pressing state, groove uses the J507 welding rod with square steel and pole end-plate full weld 20% by frame hold down gag welding procedure square hole between square steel and the pole end-plate.
● behind pole core punching Fang Gang and the pole end-plate full weld, the actual pole sheet pressure of pole core calculates:
P-pole sheet pressure unshakable in one's determination
The firm area in S1-punching side
S-pole lamination net area
The firm stress in δ-punching side
The elongated amount of h-welding back core
The firm modulus of elasticity in E-punching side
The firm original length in L-punching side
● after the bevel for welding cooling room temperature, lay down oil pressure, close square hole by several handles the magnetic pole joint hinge is put together on punching Fang Gang, pole core is hung out hold down gag be placed on the sleeper, use CO again
2The gas shielded arc welding full weld.Each groove divides full weld three times, adopts the reversible deformation method, and 1 layer of every weldering is beaten with hammering, eliminates welding stress, reduces distortion, after the cooling room temperature, welds the 2nd layer again.Adopt this welding procedure, effect is better, does not have distortion substantially with iron core around the pole end-plate.
Production efficiency of the present invention greatly improves, and has shortened manufacturing cycle, has reduced manufacturing cost.
Claims (1)
1, a kind of pole core assembly technique of punching square steel formula cross-flow generator, it is characterized in that: said method comprises following processing step:
(1) employing compresses iron core in hold down gag, in the closed-in construction hydraulic compressing device, the pole lamination afterbody up, with punching Zhan portion and side location lamination, shaping and adjustment, guarantee that form and position tolerance unshakable in one's determination and several handle close square hole position dimension and position degree, compress iron core with hydraulic jack, with punching square steel and amortisseur bar by the fabrication hole on the hold down gag, head into iron core and be assemblied on the iron core with screw jack: punching square steel and amortisseur bar and individual pole lamination fit clearance 0.10～0.25mm, hydraulic jack piston and preceding pressure head thread connection, the Center of Pressure of pressure head overlaps with the pole lamination position of centre of gravity before guaranteeing, under the core pressing state, adjust punching Fang Gang and pole lamination fit clearance 0.10～0.25mm, guarantee on it that several handles close screw and are positioned at corresponding handle unshakable in one's determination and close the square hole centre position, with punching square steel and pole end-plate groove welding 20%, adopt welding rod with punching square steel and pole end-plate joint welding;
(2) after the groove cooling room temperature, lay down the hydraulic jack oil pressure, pole core is hung out the core pressing device, be placed on the platform sleeper, by welding conditions CO
2The gas shielded arc welding full weld divides the full weld groove three times, with punching square steel and pole end-plate full weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100649878A CN101404431A (en) | 2008-07-24 | 2008-07-24 | Pole core assembly technique for punching quadrant iron type through-flow generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100649878A CN101404431A (en) | 2008-07-24 | 2008-07-24 | Pole core assembly technique for punching quadrant iron type through-flow generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101404431A true CN101404431A (en) | 2009-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100649878A Pending CN101404431A (en) | 2008-07-24 | 2008-07-24 | Pole core assembly technique for punching quadrant iron type through-flow generator |
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| CN (1) | CN101404431A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702550B (en) * | 2009-04-20 | 2012-05-30 | 上海电气集团上海电机厂有限公司 | Water turbine pole iron-core press-fit method |
| CN103236766A (en) * | 2013-04-28 | 2013-08-07 | 国家电网公司 | Magnetic pole center positioning process used in process of assembling and disassembling magnetic pole of generator |
| CN103683700A (en) * | 2013-12-05 | 2014-03-26 | 张学义 | Production method of tensioning wheel type permanent magnet generator for vehicle |
| CN103683731A (en) * | 2013-12-05 | 2014-03-26 | 张学义 | Method for producing hybrid excitation generating set rotor for electric vehicle range extender |
| CN103840619A (en) * | 2014-03-21 | 2014-06-04 | 湘潭电机股份有限公司 | Assembling method for rotor magnetic poles of large synchronous motor |
| CN105871096A (en) * | 2016-05-06 | 2016-08-17 | 浙江希尔富电气有限公司 | Rotor core of brushless motor |
| CN109834354A (en) * | 2019-03-28 | 2019-06-04 | 哈尔滨电气动力装备有限公司 | The medicine core method for welding and its tooling bracket of synchronous motor carbon steel solid magnetic pole and red copper damping ring |
-
2008
- 2008-07-24 CN CNA2008100649878A patent/CN101404431A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702550B (en) * | 2009-04-20 | 2012-05-30 | 上海电气集团上海电机厂有限公司 | Water turbine pole iron-core press-fit method |
| CN103236766A (en) * | 2013-04-28 | 2013-08-07 | 国家电网公司 | Magnetic pole center positioning process used in process of assembling and disassembling magnetic pole of generator |
| CN103236766B (en) * | 2013-04-28 | 2015-07-22 | 国家电网公司 | Magnetic pole center positioning process used in process of assembling and disassembling magnetic pole of generator |
| CN103683700A (en) * | 2013-12-05 | 2014-03-26 | 张学义 | Production method of tensioning wheel type permanent magnet generator for vehicle |
| CN103683731A (en) * | 2013-12-05 | 2014-03-26 | 张学义 | Method for producing hybrid excitation generating set rotor for electric vehicle range extender |
| CN103840619A (en) * | 2014-03-21 | 2014-06-04 | 湘潭电机股份有限公司 | Assembling method for rotor magnetic poles of large synchronous motor |
| CN105871096A (en) * | 2016-05-06 | 2016-08-17 | 浙江希尔富电气有限公司 | Rotor core of brushless motor |
| CN109834354A (en) * | 2019-03-28 | 2019-06-04 | 哈尔滨电气动力装备有限公司 | The medicine core method for welding and its tooling bracket of synchronous motor carbon steel solid magnetic pole and red copper damping ring |
| CN109834354B (en) * | 2019-03-28 | 2023-12-26 | 哈尔滨电气动力装备有限公司 | Flux-cored brazing method for carbon steel solid magnetic pole and red copper damping ring of synchronous motor and tooling support thereof |
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Open date: 20090408 |