CN107790641A - Large-scale wind electricity planet carrier cast shaping process - Google Patents
Large-scale wind electricity planet carrier cast shaping process Download PDFInfo
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- CN107790641A CN107790641A CN201711056788.8A CN201711056788A CN107790641A CN 107790641 A CN107790641 A CN 107790641A CN 201711056788 A CN201711056788 A CN 201711056788A CN 107790641 A CN107790641 A CN 107790641A
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- 230000005611 electricity Effects 0.000 title claims abstract description 18
- 238000007493 shaping process Methods 0.000 title claims description 22
- 238000005266 casting Methods 0.000 claims abstract description 67
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 239000004576 sand Substances 0.000 claims description 18
- 210000003205 muscle Anatomy 0.000 claims description 11
- 239000011449 brick Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000012774 insulation material Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000010583 slow cooling Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000011159 matrix material Substances 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 238000012797 qualification Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000008602 contraction Effects 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000006247 magnetic powder Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/103—Multipart cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of large-scale wind electricity planet carrier cast casting moulding process, the planet carrier casting includes the upper annular plate and lower annular plate being connected with triangle uprights vertical, and the die joint of planet carrier casting is arranged on the interface of upper annular plate and three corner posts；First core and the second core are set between upper annular plate and lower annular plate, and the outside of core is provided with triangle outlet passageway, and core centre sets vertical outlet passageway；Open riser is set directly over upper annular plate and three corner post intersections；Lower annular plate sets blind riser, and the lower section of lower annular plate is provided with external chill.Running channel is returned the bottom of using to be poured into a mould with the pouring type that ladder running channel is combined.Using planet carrier casting forming produced by the invention, size qualification, casting matrix is fine and close, and three corner posts only need modified repair welding with upper annular plate, lower annular plate handing-over position flawless defect, other positions, castings production cost is reduced, there is higher economic benefit.
Description
Technical field
The present invention relates to plant equipment casting technology field, specifically a kind of casting forming, the matrix group formed
Knit fine and close, the large-scale wind electricity planet carrier cast shaping process of flawless defect.
Background technology
Global offshore wind farm unit shows the Enlargement Tendency, and China's offshore wind farm is in the starting stage.For 5MW and
High-power land and coastal waters field wind power plant above, unit is high using power, and unit requirement is not repaired for 50 years.And planet
Frame product directly affects the service life of whole generating set as wind power generating set important component, its quality.OK
Carrier casting integrally belongs to frame structure, and vertical direction deflation resistance is big, and amount of contraction is difficult to control, and casting dimension accuracy is difficult to protect
Card；Because hindered contraction produces shrinkage stress during contraction, crackle is easily caused；Thermal center is isolated, scattered, more, obtains compact tissue difficulty,
And key area does not allow soldering, Production Practice of Casting Technologies is poor, and it is big to manufacture difficulty.
The content of the invention
It is an object of the invention to provide a kind of large-scale wind electricity planet carrier cast shaping process, to solve：Planet carrier casting heat
Section is isolated, scattered, more, and feeding is difficult, and hardly possible obtains compact tissue；Two layers of annular slab of planet carrier and column junction deflation resistance
Greatly, amount of contraction is difficult to control, and casting dimension accuracy is difficult to ensure that；And it is easily caused when shrinking because hindered contraction produces shrinkage stress
Crackle, the problem of making casting finished products can't meet the quality requirement.
It is to solve above-mentioned technical problem the technical solution used in the present invention：
A kind of large-scale wind electricity planet carrier cast shaping process, the planet carrier casting include hanging down with five equally distributed three corner posts
The direct-connected upper annular plate and lower annular plate connect, upper annular plate are provided with 5 downward opening cone planetary axle blind holes, lower annular plate
Intermediate region is provided with 5 equally distributed planet shaft through-holes, and planet shaft through-hole need not cast out, and the die joint of planet carrier casting is set
Put the interface in upper annular plate and three corner posts；First core and the second core are set between upper annular plate and lower annular plate,
The outside of first core and the second core is provided with triangle outlet passageway, and the centre of the first core is provided with to be set with runner brick row
The second vertical outlet passageway, the second core centre is equipped with the first vertical outlet passageway for setting of runner brick row；Upper
Open riser is respectively provided with directly over annular slab and three corner post intersections；5 are set above the planet shaft through-hole that lower annular plate does not cast out
Individual blind riser, blind riser top are connected with horizontal outlet passageway, and horizontal outlet passageway is connected with the second vertical outlet passageway；
Set immediately below blind riser it is several it is low return ingate, the bottom of ingate is with setting the cross gate below planet carrier casting
Be connected, cross gate converge after by setting the sprue on the outside of planet carrier casting to be drawn from casting top box, sprue passes through
Ladder running channel is connected with open riser；Three corner posts are provided with several techniques with upper annular plate, lower annular plate junction and cut muscle；
The lower section of lower annular plate is provided with several piece external chill；Insulation material is laid respectively at the top of open riser after casting complete to be protected
Temperature.
Preferably, the first described core with it is first that the first core and the second pasting of core is integral during the second core mould assembling
Afterwards, with the height dimension of core after model control bonding, then overall lower core.
Preferably, deformability material is discharged in the middle part of first core and the second core, ensures that mold thickness exists
Between 100-150 mm.
Preferably, a diameter of 80-120mm of the described first vertical outlet passageway, the size of the horizontal outlet passageway are
60mm × 60mm × 15mm, a diameter of 40-60mm of the second vertical outlet passageway.
Preferably, the open riser is circular heat insulating open riser, and insulation material is discharged after casting complete at the top of open riser
For plant ash, laying weight is 12-17kg；The blind riser is circular sand mold blind riser.
Preferably, the cylindrical side of the lower annular plate is provided with several piece external chill, lower annular plate and three corner post junctions
External chill is arranged right below, lower annular plate bottom is located at blind riser and is arranged right below several piece external chill.
Preferably, the thickness of the external chill is be quenched place's wall thickness or thermal center circular diameter 0.5-0.8 times, and length is quilt
1.8-2.5 times of wall thickness at Quench, width are be quenched place's wall thickness 1.5-2.0 times, and external chill contacts surface perimeter with casting
The slow cooling slope gradient is 25-35 °.
Preferably, the ladder running channel shares 3, and 100-120mm highly locates above upper annular plate.
Preferably, the cast shaping process of the planet carrier casting uses resin sand hand moulding；Planet carrier is cast after shaping
Part shrinkage factor is 1.5%.
Preferably, the thickness that the technique cuts muscle is 15-20mm, and adjacent process cuts spacing 40-50mm between muscle.
Beneficial effects of the present invention are：
（1）The die joint of the present invention is chosen at the interface of upper annular plate and three corner posts, and casting mold is divided into two halves up and down, made
Casting major part main body is located at nowel, reduces core quantity and lower core mould assembling dimensional discrepancy；Also core is set to be entirely located in nowel,
Be advantageous to lower core mould assembling operation, reduce overlap, fash that lower core is formed, improve planet carrier surface quality of continuous castings, and can be effective
Ground controls the counterpart size of wall thickness dimension and 5 columns；
（2）Two cores are set between upper annular plate and lower annular plate, lower annular plate are formed with the second core, with the first core
Model will be used to form the planet axis blind hole on upper annular plate and upper annular plate, during mould assembling after the first core and the second pasting of core
Core overall height dimension is measured, to ensure that size meets tolerance between upper lower annular plate.Can conveniently it be made using two layers of core
Type operates, it is ensured that the intensity and the degree of packing of sand mold at 5 planet axis blind holes below upper annular plate, avoids because below rising head
Overheat produces scab；
（3）5 circular heat insulating open risers are arranged above what upper annular plate intersected with 5 three corner posts, solve upper annular plate
And 5 root post feeding problem.5 planet shaft through-holes on lower annular plate are not cast out, 5 circular sand molds are arranged above at it
Blind riser, solves the problems, such as the feeding of lower annular plate, planetocentric axis hole and planet shaft through-hole.Layering sets rising head can be to planet carrier
Casting carries out abundant feeding, each position is formed compact tissue, while scattered multiple rising head collection slag significant effects.It is bright to emit
15kg insulation materials are respectively discharged at the top of mouthful after casting complete, increases riser head heat-preserving performance, riser feeding effect can be lifted；
（4）Several piece external chill is set below lower annular plate, and external chill contacts 30 ° of surface perimeter slow cooling slope with casting.External chill
The setting rate of place's molten steel is about more than twice at sand mold, sets external chill to cause casting to let cool iron position and first solidify, and is formed
Consecutive solidification trend is realized, riser feeding distance can be extended, so as to obtain compact tissue.External chill and the side of casting contact position
Slow cooling slope is made in face, makes the interface temperature gradient gentle transition of chill and sand mold, avoids in the intersection of chill and sand mold
Thermal fragmentation defect is produced on casting；
（5）The principle that opens up of resin sand technique running channel of the present invention is that low temperature, bottom are returned, opening is poured soon, sets several bottom to return
Ingate be in order that the total section of ingate is maximum in running gate system, multi-point dispersion heat ensure during cast molten steel first from casting most
Bottom enters, and is advantageous to pigment finish leather and floating sand in sand mold die cavity and assembles into rising head；3 ladders are set to pour above upper annular plate
Road, when molten steel face is risen at 3 ladder running channels, molten steel enters from 3 ladder running channels, after so contributing to molten steel to pour into a mould
Phase casting forms the trend of consecutive solidification, avoids bottom from returning overheat at ingate and shrinkage porosite and crack defect occurs；
（6）The present invention sets horizontal outlet passageway at the top of the blind riser above lower annular plate planet shaft through-hole, passes through runner brick
Arrange the vertical gas off-take set and discharge gas from top box.Gas during cast in lower annular plate can only go out from the triangle of core side
Gas passage and lower annular plate planet shaft through-hole（Do not cast out）Escaped at the top of the rising head of top, pass through level into the gas in rising head
Outlet passageway introduces a gas into the second vertical outlet passageway and discharged from upper box top, ensures that molten steel exhaust is unimpeded inside casting mold, has
The defects of effect avoids casting from producing stomata, misrun；
（7）Three corner posts of planet carrier casting intersect vertically with upper annular plate, lower annular plate, and upper annular plate, lower annular plate are main
Shrink in the horizontal direction, three corner posts shrink mainly in the vertical direction, and intersection area is thick big, and radiating condition is poor, easy shape after solidification
Defect is cracked into stress concentration.Decomposition can be played, discharge the work of shrinkage stress by setting multiple tracks technique to cut muscle at the position
With so as to effectively reduce and Crack prevention defect；
（8）Deformability material is discharged in core middle part, and mold thickness is controlled between 100-150mm.The yielding of core can be increased
Property, can reduce between upper lower annular plate and the radial contraction resistance of spindle hole, while be also beneficial to the upward of sand core internal gas
Discharge；The materials such as wood chip may be selected in deformability material；
（9）The present invention elects the shrinkage factor of casting as 1.5%, can effectively solve planet carrier casting structure complexity, shrink uneven
The problem of.
The planet carrier casting forming produced using the casting technique of the present invention, the matrix of formation are fine and close.By blank
Carry out 100% ultrasonic examination detection and 100% magnetic powder inspection detection.Ultrasonic examination detection planet head meets with planet hole portion position
The 2 grades of requirements of EN 12680-1 standards, remaining all finished surface of carrier main-body meet 3 grades of requirements of EN 1268-1 standards.Magnetic
Powder carrying out flaw detection planet head meets 1 grade of requirement of EN 1369-1997 standards with planet hole portion position.Planet carrier casting intermediate cam is stood
Post is with upper annular plate and lower annular plate handing-over position, planet head and planet hole portion position without any casting flaw, it is not necessary to is mended
Weldering, other positions only need to carry out modified soldering.
Brief description of the drawings：
Fig. 1 is large-scale wind electricity planet carrier cast casting forming process structure schematic diagram of the present invention；
Fig. 2 is Fig. 1 schematic top plan view；
In figure：1st, planet carrier casting, 2, planet axis blind hole, 3, upper annular plate, 4, interface, the 5, first core, 6, triangle goes out
Gas passage, the 7, second core, 8, lower annular plate, 9, blind riser, 10, planet shaft through-hole, 11, ingate, 12, external chill, 13, three
Corner post, 14, technique cut muscle, 15, cross gate, 16, sprue, 17, ladder running channel, 18, insulation material, 19, open riser, 20,
First vertical outlet passageway, the 21, second vertical outlet passageway, 22, horizontal outlet passageway,
Embodiment:
Technical scheme and beneficial effect are described in further detail below in conjunction with the accompanying drawings.
Large-scale wind electricity planet carrier cast shaping process as shown in Figure 1 and Figure 2, the planet carrier casting 1 are included with five uniformly
Three corner posts 13 upper annular plate 3 and lower annular plate 8 connected vertically of distribution, upper annular plate 3 are provided with 5 downward opening cones
Shape planet axis blind hole 2, the intermediate region of lower annular plate 8 are provided with 5 equally distributed planet shaft through-holes 10, and planet shaft through-hole 10 is not required to
Cast out, the die joint of planet carrier casting 1 is arranged at the interface 4 of the corner post 13 of upper annular plate 3 and three；Upper annular plate 3 with
First core 5 and the second core 7 be set between lower annular plate 8, and the outside of the first core 5 and the second core 7 goes out provided with triangle
Gas passage 6, the centre of the first core 5 are provided with the second vertical outlet passageway 21 set with runner brick row, the center of the second core 7
Position is equipped with the first vertical outlet passageway set with runner brick row（20）；First by when the first core 5 and the second 7 mould assembling of core
After one core 5 and the second core 7 are bonded into one, with the height dimension of core after model control bonding, then overall lower core.
Open riser 19 is respectively provided with directly over the intersection of 3 and three corner post of upper annular plate 13；The row that lower annular plate 8 does not cast out
The top of star shaft through-hole 10 sets 5 blind risers 9, and the top of blind riser 9 is connected with horizontal outlet passageway 22, horizontal outlet passageway 22
It is connected with the second vertical outlet passageway 21；A diameter of 80-120mm of first vertical outlet passageway 20, horizontal outlet passageway 22
Size be 60mm × 60mm × 15mm, a diameter of 40-60mm of the second vertical outlet passageway 21.First core 5 and the second sand
Deformability material is discharged in the middle part of core 7, ensures mold thickness between 100-150 mm.
Set immediately below blind riser 9 it is several it is low return ingate 11, the bottom of ingate 11 is with setting under planet carrier casting 1
The cross gate 15 of side is connected, cross gate 15 converge after by setting the sprue 16 in the outside of planet carrier casting 1 from casting
Case is drawn, and sprue 16 is connected by ladder running channel 17 with open riser 19；Three corner posts 13 are handed over upper annular plate 3, lower annular plate 8
The place of connecing is provided with several techniques and cuts muscle 14；
The cylindrical side of lower annular plate 8 is provided with several piece external chill 12, and lower annular plate 8 is arranged right below with the junction of three corner post 13
External chill 12, the bottom of lower annular plate 8 are located at blind riser 9 and are arranged right below several piece external chill 12.
Open riser 19 is circular heat insulating open riser, and it is vegetation that insulation material 18 is discharged at the top of open riser 19 after casting complete
Ash, laying weight are 15kg；Blind riser 9 is circular sand mold blind riser.
Ladder running channel 17 shares 3, and 100-120mm highly locates above upper annular plate 3.
The cast shaping process of planet carrier casting 1 uses resin sand hand moulding；The shrinkage factor of planet carrier casting 1 is after shaping
1.5%。
The thickness that technique cuts muscle 14 is 15-20mm, and spacing is 40-50mm between adjacent process cuts muscle 14.
Planet carrier product type is in the present embodiment：WF5000BIA；Material therefor is：ZG35CrMo；Appearance and size：
2000mm×1210mm；Using wooden mold furane resins sand molding, casting gross weight：8400kg, feeder modulus are cast for the position
1.5-1.1 times of part modulus, with reference to riser feeding distance calculating method set external chill, according to casting gross weight and pour, emit it is salty
Calculating casting yield rate is：50%.
Manufacture experimently 2 planet carrier casting of production altogether with technical scheme of the present invention.To produced planet carrier cast product without
It is as follows to damage testing result：
1st, ultrasonic examination testing result：
2nd, magnetic powder inspection testing result：
（1）Non-linear stomata, burning into sand and slag inclusion, the testing result due to shrink defects caused by nitrogen：
（2）Linear and aligning defect testing result：
3rd, the corner post of planet carrier casting three and upper annular plate and lower annular plate handing-over position and planet head and planet hole portion position without times
What crack defect, it is not necessary to carry out repair welding.There is a small amount of micro-crack defect in other positions, it is only necessary to carry out modified repair welding.
Claims (10)
1. a kind of large-scale wind electricity planet carrier cast shaping process, the planet carrier casting（1）Including with five equally distributed triangles
Column（13）Upper annular plate connected vertically（3）And lower annular plate（8）, upper annular plate（3）It is provided with 5 downward opening tapers
Planet axis blind hole（2）, lower annular plate（8）Intermediate region is provided with 5 equally distributed planet shaft through-holes（10）, planet shaft through-hole
（10）It need not cast out, it is characterised in that：The planet carrier casting（1）Die joint be arranged on upper annular plate（3）Stood with triangle
Post（13）Interface（4）；Upper annular plate（3）With lower annular plate（8）Between the first core is set（5）With the second core（7）, the
One core（5）With the second core（7）Outside be provided with triangle outlet passageway（6）, the first core（5）Centre be provided with use
The second vertical outlet passageway that runner brick row sets（21）, the second core（7）Centre is equipped with first set with runner brick row
Vertical outlet passageway（20）；In upper annular plate（3）With three corner posts（13）Open riser is respectively provided with directly over intersection（19）；Lower ring
Shape plate（8）The planet shaft through-hole not cast out（10）Top sets 5 blind risers（9）, blind riser（9）Top and horizontal outlet passageway
（22）It is connected, horizontal outlet passageway（22）With the second vertical outlet passageway（21）It is connected；
Blind riser（9）Underface, which is set, several low returns ingate（11）, ingate（11）Bottom with set planet carrier casting
（1）The cross gate of lower section（15）It is connected, cross gate（15）By setting planet carrier casting after converging（1）The sprue in outside
（16）Drawn from casting top box, sprue（16）Pass through ladder running channel（17）With open riser（19）It is connected；Three corner posts（13）With
Upper annular plate（3）, lower annular plate（8）Junction is provided with several techniques and cuts muscle（14）；
Lower annular plate（8）Lower section be provided with several piece external chill（12）；Open riser（19）Laying is protected respectively after casting complete at top
Adiabator（18）It is incubated.
2. large-scale wind electricity planet carrier cast shaping process according to claim 1, it is characterised in that：The first described core
（5）With the second core（7）First by the first core during mould assembling（5）With the second core（7）After being bonded into one, controlled and bonded with model
The height dimension of core afterwards, then overall lower core.
3. large-scale wind electricity planet carrier cast shaping process according to claim 1 or 2, it is characterised in that：First sand
Core（5）With the second core（7）Middle part discharge deformability material, ensure mold thickness between 100-150 mm.
4. large-scale wind electricity planet carrier cast shaping process according to claim 3, it is characterised in that：Described first goes out vertically
Gas passage（20）A diameter of 80-120mm, the horizontal outlet passageway（22）Size be 60mm × 60mm × 15mm, it is described
Second vertical outlet passageway（21）A diameter of 40-60mm.
5. large-scale wind electricity planet carrier cast shaping process according to claim 3, it is characterised in that：The open riser（19）
For circular heat insulating open riser, open riser（19）Insulation material is discharged after casting complete in top（18）For plant ash, weight is laid
For 12-17kg；The blind riser（9）For circular sand mold blind riser.
6. large-scale wind electricity planet carrier cast shaping process according to claim 5, it is characterised in that：The lower annular plate
（8）Cylindrical side be provided with several piece external chill（12）, lower annular plate（8）With three corner posts（13）Junction is arranged right below outer cold
Iron（12）, lower annular plate（8）Bottom is located at blind riser（9）It is arranged right below several piece external chill（12）.
7. large-scale wind electricity planet carrier cast shaping process according to claim 6, it is characterised in that：The external chill（12）
Thickness be to be quenched place's wall thickness or 0.5-0.8 times of thermal center circular diameter, length is to be quenched 1.8-2.5 times that locates wall thickness, wide
Spend to be quenched 1.5-2.0 times of place's wall thickness, external chill（12）The surface perimeter slow cooling slope gradient is contacted with casting as 25-35 °.
8. large-scale wind electricity planet carrier cast shaping process according to claim 7, it is characterised in that：The ladder running channel
（17）3 are shared, positioned at upper annular plate（3）Top 100-120mm highly locates.
9. large-scale wind electricity planet carrier cast shaping process according to claim 8, it is characterised in that：The planet carrier casting
（1）Cast shaping process use resin sand hand moulding；Planet carrier casting after shaping（1）Shrinkage factor is 1.5%.
10. large-scale wind electricity planet carrier cast shaping process according to claim 9, it is characterised in that：The technique cuts muscle
（14）Thickness be 15-20mm, adjacent process cuts muscle（14）Between spacing be 40-50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711056788.8A CN107790641B (en) | 2017-11-01 | 2017-11-01 | Large-scale wind electricity planet carrier cast shaping process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711056788.8A CN107790641B (en) | 2017-11-01 | 2017-11-01 | Large-scale wind electricity planet carrier cast shaping process |
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| Publication Number | Publication Date |
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| CN107790641A true CN107790641A (en) | 2018-03-13 |
| CN107790641B CN107790641B (en) | 2019-06-25 |
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| CN110369678A (en) * | 2019-06-17 | 2019-10-25 | 江苏吉鑫风能科技股份有限公司 | A kind of wind power principal axis metal mold and casting system |
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| CN112846080A (en) * | 2021-01-05 | 2021-05-28 | 中国第一重型机械股份公司 | Integral casting control method for rudder blade casting for large ship |
| CN112872297A (en) * | 2020-12-25 | 2021-06-01 | 兰州高压阀门有限公司 | Stepped feeding casting process for large-scale profile section casting |
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| CN109909451A (en) * | 2019-04-09 | 2019-06-21 | 安徽应流集团霍山铸造有限公司 | A kind of steel-casting casting model and its pouring procedure |
| CN110369678A (en) * | 2019-06-17 | 2019-10-25 | 江苏吉鑫风能科技股份有限公司 | A kind of wind power principal axis metal mold and casting system |
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| CN111036853A (en) * | 2019-12-05 | 2020-04-21 | 江苏吉鑫风能科技股份有限公司 | Size control method for 8MW fan base casting |
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| CN112872297A (en) * | 2020-12-25 | 2021-06-01 | 兰州高压阀门有限公司 | Stepped feeding casting process for large-scale profile section casting |
| CN112872297B (en) * | 2020-12-25 | 2023-04-25 | 兰州高压阀门有限公司 | Stepped feeding casting process for large-sized profile section casting |
| CN112846080A (en) * | 2021-01-05 | 2021-05-28 | 中国第一重型机械股份公司 | Integral casting control method for rudder blade casting for large ship |
| CN112846080B (en) * | 2021-01-05 | 2022-12-02 | 中国第一重型机械股份公司 | Integral casting control method for rudder blade casting for large ship |
| CN115121766A (en) * | 2021-03-29 | 2022-09-30 | 常熟市虹桥铸钢有限公司 | Gearbox resin sand casting process |
| CN113118389A (en) * | 2021-05-25 | 2021-07-16 | 江苏力源金河铸造有限公司 | Sand core for casting shell casting and casting process thereof |
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