CN101707422A - Processing method for interturn insulation of high-voltage motor pole coil - Google Patents

Processing method for interturn insulation of high-voltage motor pole coil Download PDF

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Publication number
CN101707422A
CN101707422A CN200910228522A CN200910228522A CN101707422A CN 101707422 A CN101707422 A CN 101707422A CN 200910228522 A CN200910228522 A CN 200910228522A CN 200910228522 A CN200910228522 A CN 200910228522A CN 101707422 A CN101707422 A CN 101707422A
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CN
China
Prior art keywords
pole coil
turn
insulation
pole
processing method
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Pending
Application number
CN200910228522A
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Chinese (zh)
Inventor
路春玲
李效革
史庆久
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Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd
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Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd
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Priority to CN200910228522A priority Critical patent/CN101707422A/en
Publication of CN101707422A publication Critical patent/CN101707422A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a processing method for interturn insulation of a high-voltage motor pole coil, belonging to the technical field of motors. The processing method for interturn insulation of the high-voltage motor pole coil is characterized by comprising the following technical processes: numbering and marking paired pole core and pole coil, and conducting procedures of dismantling, annealing, cleaning, forming, edgewise winding, turn connection, insulated blanking and pad interturn insulation to the pole coil, so as to realize interturn insulation of the pole coil, and lead the pole coil to be sheathed with the pole core according to a number. The method has the advantages of simple technology, good heat dissipation effect, stable electrical performance, high heat-resisting class, capability of avoiding turn-to-turn short circuit of the pole coil, reduction of manufacturing cost for machine set transformation, and reduction of raw material consumption and the like.

Description

A kind of processing method for interturn insulation of high-voltage motor pole coil
Technical field
The invention belongs to technical field of motors, particularly relate to a kind of processing method for interturn insulation of high-voltage motor pole coil.
Background technology
At present, high-voltage motor capacity-increasing transformation unit is owing to long operational time, field-turn insulation charing, cause pole coil turn-to-turn short circuit, rotor overcurrent and reduce idle exerting oneself.Unit is scrapped, need be changed novel turn-to-turn insulation to pole coil.The turn-to-turn insulation structure that pole coil adopts before transforming is that thermal endurance class is low, turn-to-turn insulation is thick, expend raw material, radiating effect is poor, motor volume is big, unit capacity is low, the cost height.
Summary of the invention
The present invention provides a kind of processing method for interturn insulation of high-voltage motor pole coil for solving the technical problem that exists in the known technology.
The purpose of this invention is to provide that a kind of to have technology simple, can avoid pole coil turn-to-turn short circuit, good heat dissipation effect and electric performance stablity, the thermal endurance class height reduces the processing method for interturn insulation of high-voltage motor pole coil that unit is transformed cost of manufacture and reduced characteristics such as raw materials consumption.
The present invention is that the unit transformation requires pole coil under the constant situation of original pole core, on original pole coil basis, increase the copper bar number of turn, change novel turn-to-turn insulation structure, also will guarantee that original pole coil height dimension is constant, with the power that promotes unit, increase energy output.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
A kind of processing method for interturn insulation of high-voltage motor pole coil, be characterized in: comprise following technical process, the pole core and the pole coil of pairing are numbered, mark, pole coil is dismantled, anneals, cleared up, moulding, connects circle at edge-wind, insulation blanking, pad turn-to-turn insulation operation, realize field-turn insulation, carry out suit by numbering with pole core.
The present invention can also adopt following technical scheme:
Described processing method for interturn insulation of high-voltage motor pole coil, be characterized in: pole coil is numbered, when marking, to after increasing the copper bar number of turn, former leaded position and marking, carry out copper bar number of turn welding, constant again to guarantee former leaded position dimension.
Described processing method for interturn insulation of high-voltage motor pole coil is characterized in: during the pole coil moulding, adopt pole coil pole(cell) insulation and collar cheek hot pressing integrative-structure, guarantee pole coil hot pressing quality.
Described processing method for interturn insulation of high-voltage motor pole coil is characterized in: annealing adopts the overhead traveling crane lifting device that pole coil is put into the anaerobic annealing furnace, carries out annealing in process.
Described processing method for interturn insulation of high-voltage motor pole coil is characterized in: pad turn-to-turn insulation is by turn-to-turn insulation structure, design insulating material blank size, pad preparative layer number; With pole coil be placed on the pad insulating support, with iron rod with coil divide circle erect, with cotton, emery cloth with its wiped clean, insulating material is filled up system turn-to-turn insulation successively.
Advantage and good effect that the present invention has are:
Processing method for interturn insulation of high-voltage motor pole coil compared with prior art has the following advantages owing to adopted technical scheme of the present invention:
1. adopt novel turn-to-turn insulation structure, heat resistance is good, the turn-to-turn insulation attenuate, promptly satisfy the technology requirement, has increased the copper bar number of turn again, and electric property and mechanical strength are good, and technology is simple, has improved the unit generation amount,
2. energy-saving and cost-reducing, only need design and produce simple and easy edge-wind mould, adopt artificial conformal winding method, place, R angle seamlessly transits no wear phenomenon has promptly increased the copper bar number of turn, and is consistent with original pole coil profile, size is accurate.
3. adopt pole(cell) insulation and pole coil hot pressing mode, promptly guaranteed insulation and presentation quality, need not scald pot insulating process by pole core, reduced the unit manufacturing cost, improved production efficiency and fabrication cycle.
4. behind the unit operation, energy output increases, the unit temperature rise descends, and has satisfied customer requirements, the product quality excellent performance.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Consult accompanying drawing 1.
Embodiment 1
A kind of processing method for interturn insulation of high-voltage motor pole coil, be characterized in: comprise following technical process, the pole core and the pole coil of pairing are numbered, mark, pole coil is dismantled, anneals, cleared up, moulding, connects circle at edge-wind, insulation blanking, pad turn-to-turn insulation operation, realize field-turn insulation, carry out suit by numbering with pole core.
Pole coil is numbered, when marking, to after increasing the copper bar number of turn, former leaded position and marking, carry out copper bar number of turn welding, constant to guarantee former leaded position dimension again.
During the pole coil moulding, adopt pole coil pole(cell) insulation and collar cheek hot pressing integrative-structure, guarantee pole coil hot pressing quality.
Annealing adopts the overhead traveling crane lifting device that pole coil is put into the anaerobic annealing furnace, carries out annealing in process.
Pad turn-to-turn insulation is by turn-to-turn insulation structure, design insulating material blank size, pad preparative layer number; With pole coil be placed on the pad insulating support, with iron rod with coil divide circle erect, with cotton, emery cloth with its wiped clean, insulating material is filled up system turn-to-turn insulation successively.
Details are as follows for specific implementation process of the present invention:
One. mark, dismantle operation
A: used material:
1. pole coil 2. prefixs 3. galvanized wires
B: used tool:
1. hammer 2. chisels 3. special-purpose handcart 4. overhead traveling crane lifting devices
C: making step and method
(1) pole core and the pole coil of pairing are pressed original numbering mark, the pole coil that disassembles is piled up respectively on special-purpose handcart, remove the insulation of former backing plate and iron pressing plate and superficial charring.
(2) be 45 ° of cut-outs with hammer, chisel along the inclination angle at pole coil first circle and last circle center.
(3) pole coil, copper bar and lead-in wire junction perform mark respectively.
Two. annealing in process and cleaning process
A: used material:
1. last operation pole coil 2. masks 3. emery cloths
B: used tool:
1. anaerobic annealing furnace 2. overhead traveling crane lifting devices 3. special stands 4. iron pipes
C: making step and method
(1), carries out annealing in process by technological requirement with last operation pole coil, put into the anaerobic annealing furnace with the overhead traveling crane lifting device.
(2) put on. mask, pole coil that annealing in process is later, put iron pipe, frame removes original turn-to-turn insulation at special stand, it is clean to clear up polishing with emery cloth.
(3) after the coil cleaning is polished totally, with its neat piling up together, next process to be changed over to
Three. the cold moudling operation
A: used material:
1). last operation pole coil
B: used tool:
1) the special-purpose side pressure frock 4 large-sized hydraulic press 3 cold and hot pattern 2 that is pressed into))) guide pillar 6. crowbars
C: making step and method
1) special-purpose side pressure frock is lifted on the large-sized hydraulic press work top with overhead traveling crane.
2) with pole coil with overhead traveling crane be lifted in the special-purpose side pressure frock, the pole coil internal diameter is respectively charged into cold and hot molded module.
3) start the large-sized hydraulic press switch, at first with guide pillar risen in the center respectively piece, central core with its be pressed onto the position, then with hydraulic press that its side pressure frock voussoir back of the body is tight, to guarantee wide size and perpendicularity problem outside the pole coil.
4) next process production is piled up together, treated to the pole coil of cold moudling respectively.
Four, edge-wind, connect the circle operation
A: used material:
1). last operation pole coil .2) copper bar 3) silver solder
B: used tool:
1) the edge-wind mould 2) self-control spanner 3) hammer 4) chisel 5) diagonal cutting pliers 6) welding equipment
C: making step and method
1) at first the edge-wind mould is fixed on the edge-wind equipment, the copper bar after will once annealing prevents on the rotating disk, with the self-control spanner adopt artificial conformal winding method, along edge-wind mould peripheral direction carry out coiling, place, R angle seamlessly transits.
2). after the required number of turn of coiling, cut off with diagonal cutting pliers.
3) last operation pole coil being placed on the work top, when connecing circle the copper bar soldering opening respectively adopts 45 inclined weld mode, welds with silver solder.
Five, welding lead operation
A: used material:
1). last operation pole coil 2) former copper bar lead-in wire 3) silver solder
B: used tool:
1) welding equipment 2) hammer 3) chisel 4) briquetting 5) instrument prints
C: making step and method
With connect last operation pole coil that circle finishes, check the number according to former pole coil, copper bar and lead-in wire junction mark weld, the former lead-in wire position dimension of strict control.
Six. cleaning removes the thorn operation
A: used material:
1). last operation pole coil 2) cotton, emery cloth 3) water tank 4) fabric disc
B: used tool:
1. overhead traveling crane lifting device 2. special stands 3. iron pipes 4. hand operated grinding wheels 5. files
C: making step and method
1. last operation pole coil is sleeved on the iron pipe, is placed on the special stand, it polished totally, put into water tank and wash, use then cotton, emery cloth wiped clean with hand operated grinding wheel with the overhead traveling crane lifting device.
2. the pole coil of wiped clean is piled up together next process to be changed over to
Seven, insulation blanking, pad turn-to-turn insulation
A: used material:
1). last operation pole coil 2) cotton, emery cloth 3) insulating material
B: used tool:
1). pad insulating support 2) body feed tank 3) small brushes 4) insulating varnish 5) iron rod
C: making step and method
By novel turn-to-turn insulation structure, carry out designing and calculating insulating material blank size, pad preparative layer number.
2. pole coil is placed on the pad insulating support, with iron rod with coil divide circle erect, with cotton, emery cloth with its wiped clean, insulating material is filled up system turn-to-turn insulation successively.
3. the pole coil that pad is made turn-to-turn insulation changes next process over to.
Back hot-briquetting modeling process, sanding treatment process, test turn-to-turn short circuit operation, visual examination operation, test D.C. resistance operation, spray paint, finish.

Claims (5)

1. processing method for interturn insulation of high-voltage motor pole coil, it is characterized in that: comprise following technical process, the pole core and the pole coil of pairing are numbered, mark, pole coil is dismantled, anneals, cleared up, moulding, connects circle at edge-wind, insulation blanking, pad turn-to-turn insulation operation, realize field-turn insulation, carry out suit by numbering with pole core.
2. processing method for interturn insulation of high-voltage motor pole coil according to claim 1, it is characterized in that: pole coil is numbered, when marking, to after increasing the copper bar number of turn, former leaded position and marking, carry out copper bar number of turn welding, constant again to guarantee former leaded position dimension.
3. processing method for interturn insulation of high-voltage motor pole coil according to claim 1 is characterized in that: during the pole coil moulding, adopt pole coil pole(cell) insulation and collar cheek hot pressing integrative-structure, guarantee pole coil hot pressing quality.
4. processing method for interturn insulation of high-voltage motor pole coil according to claim 1 is characterized in that: annealing adopts the overhead traveling crane lifting device that pole coil is put into the anaerobic annealing furnace, carries out annealing in process.
5. processing method for interturn insulation of high-voltage motor pole coil according to claim 1 is characterized in that: pad turn-to-turn insulation is by turn-to-turn insulation structure, design insulating material blank size, pad preparative layer number; With pole coil be placed on the pad insulating support, with iron rod with coil divide circle erect, with cotton, emery cloth with its wiped clean, insulating material is filled up system turn-to-turn insulation successively.
CN200910228522A 2009-11-13 2009-11-13 Processing method for interturn insulation of high-voltage motor pole coil Pending CN101707422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910228522A CN101707422A (en) 2009-11-13 2009-11-13 Processing method for interturn insulation of high-voltage motor pole coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910228522A CN101707422A (en) 2009-11-13 2009-11-13 Processing method for interturn insulation of high-voltage motor pole coil

Publications (1)

Publication Number Publication Date
CN101707422A true CN101707422A (en) 2010-05-12

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102306988A (en) * 2011-09-08 2012-01-04 国电大渡河流域水电开发有限公司检修安装分公司 Insulation restoration method for generator rotor magnetic pole
CN102368653A (en) * 2011-09-23 2012-03-07 浙江双富电力设备有限公司 Integral hot-press molding method of salient magnetic pole iron core and coil
CN104124842A (en) * 2014-06-18 2014-10-29 中信重工机械股份有限公司 Turn-to-turn insulation manufacturing method for rotor of inner air-cooled steam-turbine generator
CN104333162A (en) * 2014-11-27 2015-02-04 天津市天发重型水电设备制造有限公司 Pole coil and preparation method thereof
CN112510943A (en) * 2020-11-27 2021-03-16 上海电气电站设备有限公司 Rotor turn-to-turn insulation pre-glued filler strip and bonding method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102306988A (en) * 2011-09-08 2012-01-04 国电大渡河流域水电开发有限公司检修安装分公司 Insulation restoration method for generator rotor magnetic pole
CN102368653A (en) * 2011-09-23 2012-03-07 浙江双富电力设备有限公司 Integral hot-press molding method of salient magnetic pole iron core and coil
CN104124842A (en) * 2014-06-18 2014-10-29 中信重工机械股份有限公司 Turn-to-turn insulation manufacturing method for rotor of inner air-cooled steam-turbine generator
CN104333162A (en) * 2014-11-27 2015-02-04 天津市天发重型水电设备制造有限公司 Pole coil and preparation method thereof
CN112510943A (en) * 2020-11-27 2021-03-16 上海电气电站设备有限公司 Rotor turn-to-turn insulation pre-glued filler strip and bonding method thereof

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Open date: 20100512