CN104993649B - Large-sized water turbine generator spiral groove type collector ring processing technology - Google Patents
Large-sized water turbine generator spiral groove type collector ring processing technology Download PDFInfo
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- CN104993649B CN104993649B CN201510400683.4A CN201510400683A CN104993649B CN 104993649 B CN104993649 B CN 104993649B CN 201510400683 A CN201510400683 A CN 201510400683A CN 104993649 B CN104993649 B CN 104993649B
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- collector ring
- ring
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- spiral groove
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Abstract
The invention discloses a kind of Large Hydroelectric Set spiral groove type collector ring processing technology, the process makes full use of the working ability of equipment, two collector rings is completed inside and outside circle, end face and insulation blanket stud positioning hole machined after once combining.Insulation blanket stud hole location is less than 0.05mm on collector ring after present invention processing, and two collector ring outer circles are less than 0.05mm, and the processing duration greatly shortens than the traditional processing duration.This process can apply to the processing of more than 400MW large vertical water turbine generator spiral groove types collector ring, multiple correct error probability can be reduced, manufacturing cost is effectively reduced, the crudy of collector ring is improved, application effect is good, advantageously ensures that unit operation quality.
Description
Technical field
The invention discloses a kind of process of large-sized water turbine generator spiral groove type collector ring processing.
Background technology
Hydrogenerator set collector ring be so as to by exciting current from the rotor coil that static brush passes to rotation.
The assembling of large-sized water turbine generator collector ring is multiple by collector ring, collector ring support, insulating washer, insulation blanket stud and cross-over block etc.
Part is constituted, and is used as the connection member of insulation blanket stud and collector ring support, axially collector ring roundness of external circle and the position in upper each hole
Have to meet drawing requirement, so as to ensure that there is good Mechanical Contact and electrical contact between collector ring and brush, otherwise can
Make to produce abrasion between brush and collector ring, the normal operation of unit is influenceed when serious.Collector ring belongs to annular element, in manufacture
During need easily to occur cylindrical helicla flute size in multiple adjusting device, centering, process and chamfering is overproof, and upper next part
Electric ring screw rod hole location is overproof, for this reason, it may be necessary to which a kind of reduce the process for turning sequence and improving workmanship.
The content of the invention
The invention discloses a kind of large-sized water turbine generator spiral groove type collector ring processing technology.It is a kind of unique to propose
Collector ring method of manufacturing technology is combined, the manufacture processing for once combining two collector rings is realized, shortens production cycle and raising
Collector ring workmanship and precision.
The technical scheme is that：
A. got the raw materials ready according to forging drawing blank size：Forged steel is purchased according to drawing blank size；
B. four contour cylinder pads are placed on platform of machine tool, contour pad is processed by the way of a small amount of turning and wheel grinding
Cylinder end face level；
C. current collection ring forging is placed into contour cylinder pad, be fixedly clamped using machine chuck claw；
D. rough turn and smart car is carried out to single-piece current collection ring forging：Working position is：Upper plane, inside and outside circle, lower plane, up and down
Plane machining is to drawing requirement, inside and outside circle reserved margin；
E. two collector rings of combination are stacked on platform of machine tool, upper collector ring, lower collector ring outer round surface are slightly proofreaded with slide calliper rule
Alignment, is alignd, two collector ring concentricitys of adjustment are not more than using the upper collector ring of dial gauge essence check and correction, lower collector ring outer round surface
0.2mm；
F. after upper collector ring, lower collector ring centering, in the circumferential uniform position spot welding of two collector ring joints everywhere；
G. processing collector ring contour cylinder pad and jack are placed on the table, and upper collector ring, lower collector ring are placed
Flat to the up-regulation of contour cylinder pad, the position of contour cylinder pad should stagger uniformly with insulation screw Working position, and small very heavy using four
Top, clamping screw and pressing plate combination are pressed on collector ring, plane on lower collector ring；
H. using hole on numerical control device processing collector ring, including：Bore, cut with scissors insulation blanket stud positioning hole and two ends court on collector ring
Outboard counterbore, counterbore end-beveling, upper end collector ring lifting screwed hole；
I. upper collector ring, lower collector ring are positioned using four long alignment pins, on alignment pin diameter and collector ring absolutely
Edge screw rod positioning hole size is that gap coordinates, and it is always high that alignment pin length is higher than collector ring, lower collector ring, and alignment pin position
For uniform assembling；
J. after upper collector ring, lower collector ring level and circularity centering, the collector ring inside and outside circle of smart car two to drawing size；
K. collector ring in milling, two in lower collector ring inner circle at lead groove location；
L. long alignment pin is taken out, collector ring, lower collector ring is taken apart, upper collector ring, the lower collector ring other end are processed successively
Counterbore, counterbore end-beveling, lifting screwed hole, inner circle lead joint hole；
M. contour cylinder pad, dress clamping screw and pressing plate are placed on numerically controlled lathe rotary table, collector ring is placed on
In high cylinder pad, collector ring upper surface, the cylindrical helicla flute of car collector ring and chamfering, above-mentioned technique are compressed using clamping screw and pressing plate
As each portion's processing technology of spiral groove type collector ring.
Technique effect
The present invention is by completing above-mentioned technique content, it is ensured that each position processing of spiral groove type collector ring.The present invention with
Manufacturing process significantly difference is in the large-scale collector ring factory of tradition, using combination collector ring processing technology than single-piece work collection
Collector ring, lower collector ring outer circles requirement can be more effectively ensured in electric ring, pass through this process and compression, positioning instrument
Meet after two collector rings are combined while smart car, while boring, cutting with scissors the requirement in insulation blanket stud hole, processes centering benchmark, originally without independent
Art inventions reduce process of transfer order, utilize the combination of two collector rings and assembly and disassembly technique, it is ensured that each collector ring insulation blanket stud position
Degree and helicla flute size, therefore without worry collector ring assembling after two collector ring roundness of external circle it is bad the problem of, simplify technique,
Process.
The present invention is successfully applied to the processing of hydrogenerator unit collector ring, insulation blanket stud hole site on collector ring after processing
Degree is less than 0.05mm, and two collector ring outer circles are less than 0.05mm, and the processing duration greatly shortens than the traditional processing duration.This
Process can apply to the processing of more than 400MW large vertical water turbine generator spiral groove types collector ring, can reduce and repeatedly look for
Positive error probability, effectively reduces manufacturing cost, improves the crudy of collector ring, and application effect is good, advantageously ensures that unit
Running quality.
Brief description of the drawings
Fig. 1 is the top view of spiral groove type collecting ring
Fig. 2 is the sectional view of spiral groove type collecting ring
Fig. 3 is the cylindrical process schematic diagram of spiral groove type collector ring Combined machining
Fig. 4 is spiral groove type collector ring Combined machining inner circle, insulation blanket stud hole and wire lead slot process schematic diagram
Embodiment
A kind of large-sized water turbine generator spiral groove type collector ring processing technology, the process comprises the following steps：
A. got the raw materials ready according to forging drawing blank size：Forged steel is purchased according to drawing blank size.
B. four contour cylinder pads 6 are placed on platform of machine tool, process contour by the way of a small amount of turning and wheel grinding
The end face level of cylinder pad 6, is shown in Fig. 3.
C. current collection ring forging is placed into 6 in contour cylinder pad, is fixedly clamped using machine chuck claw, sees Fig. 3.
D. as shown in figure 1, carrying out rough turn and smart car to single-piece current collection ring forging：Working position is：Upper plane A, inside and outside circle
Φ D1, Φ D2, lower plane D, lower planes A, D are machined to drawing requirement, and inside and outside circle Φ D1, Φ D2 reserved margins are shown in Fig. 2.
E. two collector rings 1,2 of combination are stacked on platform of machine tool, upper collector ring 1, lower collector ring 2 are slightly proofreaded with slide calliper rule cylindrical
Surface in alignment, is alignd, two collector rings of adjustment are concentric using the upper collector ring 1 of dial gauge essence check and correction, the outer round surface Φ D1 of lower collector ring 2
Degree is not more than 0.2mm, sees Fig. 3.
F. after upper collector ring 1, the centering of lower collector ring 2, in two collector rings 1, the circumferential uniform location point of 2 cylindrical Φ D1 joints
Weldering everywhere, is shown in Fig. 3.
G. processing collector ring contour cylinder pad 6 and jack 7 are placed on the table, by upper collector ring 1, lower collector ring 2
Leveling in contour cylinder pad 6 is placed into, the position of contour cylinder pad 6 should stagger uniformly with insulation screw Working position Φ 3, and use four
Individual small jack 7, clamping screw 4 and the combination of pressing plate 3 are pressed on collector ring 1, plane on lower collector ring 2, see Fig. 4.
H. using Φ D3 location holes on numerical control device processing collector ring, including：Bore, cut with scissors insulation blanket stud positioning hole on collector ring
And two ends, towards outboard counterbore, counterbore end-beveling, upper end collector ring lifting screwed hole is shown in Fig. 4.
I. positioned using the four long upper collector ring 1 of 5 pairs of alignment pin, lower collector ring 2, the diameter of alignment pin 5 and collector ring
Upper insulation blanket stud positioning hole size coordinates for gap, and it is total high and fixed that the length of alignment pin 5 is higher than collector ring 1, lower collector ring 2
The position position of pin 5 is uniform assembling, sees Fig. 4.
J. after upper collector ring 1, the level of lower collector ring 2 and circularity centering, the collector ring inside and outside circle Φ D1 of smart car two, Φ D2 to figure
Paper size, is shown in Fig. 3, Fig. 4.
K. collector ring 1 in milling, lead groove location C on the inner circle Φ D2 of lower collector ring 2, are shown in Fig. 4.
L. long alignment pin 5 is taken out, collector ring 1, lower collector ring 2 is taken apart, upper collector ring 1, lower collector ring 2 are processed successively another
The counterbore and chamfering of one end, lift by crane screwed hole, and lead joint hole.
M. contour cylinder pad 6, dress clamping screw 4 and pressing plate 3, collector ring 1 or collection are placed on numerically controlled lathe rotary table
Electric ring 2 is placed in contour cylinder pad 6, compresses collector ring 1 or the upper surface of collector ring 2 using clamping screw 4 and pressing plate 3, respectively car
Collector ring 1,2 cylindrical Φ D1 helicla flutes and chamfering, above-mentioned technique are each portion's processing technology of spiral groove type collector ring.
Equipment need to be used：
3. contour cylinder pad
3. reamer
3. reamer
3. dress presses component (jack, pressing plate, clamping screw)
3. long alignment pin
3. assembly wrench
3. dial gauge
3. numerically controlled lathe
3. CNC milling machine
The present invention proposes a kind of large vertical water turbine generator spiral groove type collector ring processing technology, makes full use of processing
Capacity of equipment, reduces and takes big equipment processing duration and process of transfer order, using collector ring Combined machining, reduce correct error several
Rate, it is ensured that each portion's crudy of collector ring, it is ensured that follow-up each part assembling quality and assembly period.
Claims (1)
1. a kind of spiral groove type collector ring processing technology, it is characterized in that：
A. got the raw materials ready according to forging drawing blank size：Forged steel is purchased according to drawing blank size；
B. four contour cylinder pads are placed on platform of machine tool, contour cylinder pad end is processed by the way of a small amount of turning and wheel grinding
Face level；
C. current collection ring forging is placed into contour cylinder pad, be fixedly clamped using machine chuck claw；
D. rough turn and smart car is carried out to single-piece current collection ring forging：Working position is：Upper plane, inside and outside circle, lower plane, lower planes
It is machined to drawing requirement, inside and outside circle reserved margin；
E. two collector rings of combination are stacked on platform of machine tool, upper collector ring, the alignment of lower collector ring outer round surface are slightly proofreaded with slide calliper rule,
Using the upper collector ring of dial gauge essence check and correction, the alignment of lower collector ring outer round surface, two collector ring concentricitys of adjustment are not more than 0.2mm；
F. after upper collector ring, lower collector ring centering, in the circumferential uniform position spot welding of two collector ring joints everywhere；
G. processing collector ring contour cylinder pad and jack are placed on the table, and upper collector ring, lower collector ring are placed into
Leveling in high cylinder pad, the position of contour cylinder pad should stagger uniformly with insulation screw Working position, and using four small jack, pressures
Tight screw rod and pressing plate combination is pressed on collector ring, plane on lower collector ring；
H. using hole on numerical control device processing collector ring, including：Bore, on hinge collector ring insulation blanket stud positioning hole and two ends towards outside
Counterbore, counterbore end-beveling, upper end collector ring lifting screwed hole；
I. upper collector ring, lower collector ring are positioned using four long alignment pins, alignment pin diameter and the spiral shell that insulated on collector ring
Bar positioning hole size is that gap coordinates, and it is always high that alignment pin length is higher than collector ring, lower collector ring, and alignment pin position is equal
Cloth is assembled；
J. after upper collector ring, lower collector ring level and circularity centering, the collector ring inside and outside circle of smart car two to drawing size；
K. collector ring in milling, two in lower collector ring inner circle at lead groove location；
L. take out long alignment pin, take collector ring, lower collector ring apart, process successively upper collector ring, the lower collector ring other end it is heavy
Hole, counterbore end-beveling, lifting screwed hole, inner circle lead joint hole；
M. contour cylinder pad, dress clamping screw and pressing plate are placed on numerically controlled lathe rotary table, collector ring is placed on contour pad
On cylinder, collector ring upper surface, the cylindrical helicla flute of car collector ring and chamfering are compressed using clamping screw and pressing plate, above-mentioned technique is
Each portion's processing technology of spiral groove type collector ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400683.4A CN104993649B (en) | 2015-07-10 | 2015-07-10 | Large-sized water turbine generator spiral groove type collector ring processing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400683.4A CN104993649B (en) | 2015-07-10 | 2015-07-10 | Large-sized water turbine generator spiral groove type collector ring processing technology |
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| Publication Number | Publication Date |
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| CN104993649A CN104993649A (en) | 2015-10-21 |
| CN104993649B true CN104993649B (en) | 2017-10-10 |
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| CN112605616B (en) * | 2020-12-18 | 2021-10-26 | 哈尔滨电气动力装备有限公司 | Machining process of large-scale shielding motor thrust disc |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202934422U (en) * | 2012-11-29 | 2013-05-15 | 中国西电电气股份有限公司 | Large impact generator slip ring on-site grinding device |
| CN203895732U (en) * | 2014-04-16 | 2014-10-22 | 襄阳南车电机技术有限公司 | Processing device for collecting ring of wind driven generator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19603378A1 (en) * | 1996-01-31 | 1997-08-07 | Bosch Gmbh Robert | Slip ring arrangement |
| US6767217B2 (en) * | 2002-03-12 | 2004-07-27 | Peter E. Jacobson | Rotating electrical transfer components |
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2015
- 2015-07-10 CN CN201510400683.4A patent/CN104993649B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202934422U (en) * | 2012-11-29 | 2013-05-15 | 中国西电电气股份有限公司 | Large impact generator slip ring on-site grinding device |
| CN203895732U (en) * | 2014-04-16 | 2014-10-22 | 襄阳南车电机技术有限公司 | Processing device for collecting ring of wind driven generator |
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| CN104993649A (en) | 2015-10-21 |
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