CN103722351B - High-power wind turbine unit main gear shaft processing technique - Google Patents
- ️Wed Jul 06 2016
CN103722351B - High-power wind turbine unit main gear shaft processing technique - Google Patents
High-power wind turbine unit main gear shaft processing technique Download PDFInfo
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Publication number
- CN103722351B CN103722351B CN201310657178.9A CN201310657178A CN103722351B CN 103722351 B CN103722351 B CN 103722351B CN 201310657178 A CN201310657178 A CN 201310657178A CN 103722351 B CN103722351 B CN 103722351B Authority
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- China Prior art keywords
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- wind turbine
- grinding
- unit main
- gear shaft Prior art date
- 2013-12-04 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000012545 processing Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000000227 grinding Methods 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000003754 machining Methods 0.000 claims abstract description 8
- 230000003746 surface roughness Effects 0.000 claims description 21
- 238000007514 turning Methods 0.000 claims description 12
- 238000003801 milling Methods 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 8
- 230000008676 import Effects 0.000 abstract description 3
- 238000012163 sequencing technique Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005255 carburizing Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Wind Motors (AREA)
Abstract
High-power wind turbine unit main gear shaft processing technique of the present invention, the adjustment of heat treatment and machining sequencing in technological process, its idiographic flow is as follows, first blank is carried out roughing, semifinishing, then add work gear, flute profile, process spline, be then coated with permeability-reducing admixture, carry out heat treatment, last cylindrical grinding, roll flute, namely complete the processing of part.Meanwhile, in the course of processing, use import high-end devices and instrument for critical process, coordinate heat treatment Light deformation to control technology, it is possible to achieve the specialized total order processing from blank to finished product.High-power wind turbine unit main gear shaft processing technique of the present invention, it is ensured that heat treatment process obtains the metallographic structure of exquisiteness and uniform carburized layer, thus improving intensity and the precision of spline, and then realizes product lightweight and long-life.
Description
Technical field
The present invention relates to a kind of axis processing technique, particularly to a kind of high-power wind turbine unit main gear shaft processing technique.
Background technology
Offshore wind farm, as the state-of-the-art technology of whole world wind-powered electricity generation, is the following most possible new technique reducing wind-powered electricity generation cost of electricity-generating, becomes the focus that the whole world receives much concern.For Large marine wind power equipment, the lightweight of Wind turbines and long-life become the technological difficulties of research.The current domestic high-power offshore wind farm unit equipment lacking maturation, substantially to introduce technology, and non-catapepsis absorbs.
The new processing technique of high-power wind turbine unit main gear shaft, it is the advanced core technology of main gear shaft processing, it is possible to solve the difficult point of current domestic high-power (5MW, 6MW) unit production domesticization, catches the historic opportunities of world's wind-power market development, effectively seize European market, promote economic development.Simultaneously, the design concept of high-power wind turbine unit core product and the lifting of manufacturing technology there is good reference function, and the technological change of close Axle Parts can be realized, for energy-saving and emission-reduction, reduce processing cost, increase the service life, ensure to run the aspect such as safe and all have great importance.
Summary of the invention
[1] to solve the technical problem that
The technical problem to be solved in the present invention is to provide a kind of high-power wind turbine unit main gear shaft processing technique that can improve total quality.
[2] technical scheme of problem is solved
The present invention provides a kind of high-power wind turbine unit main gear shaft processing technique, comprises the following steps:
A, base；
A1, blank make, and adopt forging or the mode machining blanks of casting；
A2, shaft blank roughing, turnery processing axial end, axle cylindrical, step surface, tooth cylindrical and increment face, axial end reserves the allowance of 5mm～10mm, the allowance of all the other reserved 2mm～6mm, and integral surface roughness is Ra6.3；
B, semifinishing；
B1, half finish turning, turning axial end, axle cylindrical, tooth cylindrical and step surface, each step surface place processing escape, axial end reserves the allowance of 2mm～5mm, the allowance of the reserved 0.3mm～0.7mm of axle cylindrical, the allowance of all the other reserved 0.2mm～0.5mm, integral surface roughness is Ra3.2；
B2, cutting thread, be positioned at the first end cutted thread of axle；
B3, mill teeth, upper rolling tooth machine gear hobbing process teeth portion, tooth-face roughness is Ra3.2；
B4, annular knurl key, process spline by the mode of rolling cut or milling or grinding；
C, surface spraying, integral surface coats permeability-reducing admixture；
D, heat treatment, temper again after integral quenching；
E, polish；
E1, finish turning, first car removes end face allowance centering, and then turning removes each step surface place allowance, then the cylindrical of turnery processing axle and reserved 0.1mm～0.4mm allowance；
E2, cylindrical grinding, it is Ra0.8 that axle Excircle machining surplus to surface roughness is removed in grinding, and it is Ra1.6 that outside circle allowance to surface roughness is removed in grinding, and grinding axial end to surface roughness is Ra0.8, and grinding pillow block terrace to surface roughness is Ra1.6；
E3, roll flute, the grinding flank of tooth to surface roughness is Ra0.8；
F, inspection, inspection overall dimension also fills in examining report, puts in storage after having detected.
Further, in step b3, adopt high speed tooth milling machine mill teeth.
Further, in step d, adopt sealed multipurpose furnace.
Further, in step a, selection is 18CrNiMo6.
[3] beneficial effect
High-power wind turbine unit main gear shaft processing technique of the present invention, it is ensured that heat treatment process obtains the metallographic structure of exquisiteness and uniform carburized layer, thus improving intensity and the precision of spline, and then realizes product lightweight and long-life.
Accompanying drawing explanation
Fig. 1 is the structural representation of high-power wind turbine unit main gear shaft of the present invention；
The flow chart of Fig. 2 high-power wind turbine of the present invention unit main gear shaft processing technique.
Detailed description of the invention
Below in conjunction with accompanying drawing, the embodiment of the present invention is discussed in detail.
Consulting Fig. 1 to Fig. 2, the present invention provides a kind of high-power wind turbine unit main gear shaft processing technique, comprises the following steps:
A, base；
A1, blank make, and adopt forging or the mode machining blanks of casting；
A2, shaft blank roughing, turnery processing axial end, axle cylindrical, step surface, tooth cylindrical and increment face, axial end reserves the allowance of 5mm～10mm, the allowance of all the other reserved 2mm～6mm, and integral surface roughness is Ra6.3；
B, semifinishing；
B1, half finish turning, turning axial end, axle cylindrical, tooth cylindrical and step surface, each step surface place processing escape, axial end reserves the allowance of 2mm～5mm, the allowance of the reserved 0.3mm～0.7mm of axle cylindrical, the allowance of all the other reserved 0.2mm～0.5mm, integral surface roughness is Ra3.2；
B2, cutting thread, be positioned at the first end cutted thread of axle；
B3, mill teeth, upper rolling tooth machine gear hobbing process teeth portion, tooth-face roughness is Ra3.2；
B4, annular knurl key, process spline by the mode of rolling cut or milling or grinding；
C, surface spraying, integral surface coats permeability-reducing admixture；
D, heat treatment, temper again after integral quenching；
E, polish；
E1, finish turning, first car removes end face allowance centering, and then turning removes each step surface place allowance, then the cylindrical of turnery processing axle and reserved 0.1mm～0.4mm allowance；
E2, cylindrical grinding, it is Ra0.8 that axle Excircle machining surplus to surface roughness is removed in grinding, and it is Ra1.6 that outside circle allowance to surface roughness is removed in grinding, and grinding axial end to surface roughness is Ra0.8, and grinding pillow block terrace to surface roughness is Ra1.6；
E3, roll flute, the grinding flank of tooth to surface roughness is Ra0.8；
F, inspection, inspection overall dimension also fills in examining report, puts in storage after having detected.
In order to improve crudy, in step b3, adopt high speed tooth milling machine mill teeth.
In order to improve thermal effectiveness, in step d, adopt sealed multipurpose furnace, and and be aided with MICROCOMPUTER PROCESSING programming control device and carbon potential control meter.
In the present embodiment, in step a, selection is 18CrNiMo6.
First blank is carried out roughing, semifinishing by the present invention, then adds work gear, flute profile, process spline, be then coated with permeability-reducing admixture, carry out heat treatment, last cylindrical grinding, roll flute, namely complete the processing of part.
Meanwhile, in the course of processing, use import high-end devices and instrument for critical process, coordinate heat treatment Light deformation to control technology, it is possible to achieve the specialized total order processing from blank to finished product, such as: when adding work gear, flute profile, use high speed tooth milling machine；Use import advanced sealed multipurpose furnace during heat treatment, and be aided with MICROCOMPUTER PROCESSING programming control device and carbon potential control meter.
The present invention and traditional machining processes are differing primarily in, and what common process often adopted is the mode of first heat treatment reprocessing, and namely annular knurl key carries out after carburizing and quenching, as a result, the surface of spline is the soft flank of tooth, the carburized layer uniformity is poor.And the present invention adopts the technology that before the operation of annular knurl key is placed in carburizing and quenching, so can ensure that the splined surfaces obtained is Hardened gear face, be effectively improved the carburized layer uniformity simultaneously.It addition, also the cutting thread operation by arranging in common process after the heat treatment, before annular knurl key has also adjusted in Vehicle Processing operation.
High-power wind turbine unit main gear shaft processing technique of the present invention, it is ensured that heat treatment process obtains the metallographic structure of exquisiteness and uniform carburized layer, thus improving intensity and the precision of spline, and then realizes product lightweight and long-life.
Claims (4)
1. a high-power wind turbine unit main gear shaft processing technique, it is characterised in that comprise the following steps:
A, base；
A1, blank make, and adopt forging or the mode machining blanks of casting；
A2, shaft blank roughing, turnery processing axial end, axle cylindrical, step surface, tooth cylindrical and increment face, axial end reserves the allowance of 5mm～10mm, the allowance of all the other reserved 2mm～6mm, and integral surface roughness is Ra6.3；
B, semifinishing；
B1, half finish turning, turning axial end, axle cylindrical, tooth cylindrical and step surface, each step surface place processing escape, axial end reserves the allowance of 2mm～5mm, the allowance of the reserved 0.3mm～0.7mm of axle cylindrical, the allowance of all the other reserved 0.2mm～0.5mm, integral surface roughness is Ra3.2；
B2, cutting thread, be positioned at the first end cutted thread of axle；
B3, mill teeth, upper rolling tooth machine gear hobbing process teeth portion, tooth-face roughness is Ra3.2；
B4, annular knurl key, process spline by the mode of rolling cut or milling or grinding；
C, surface spraying, integral surface coats permeability-reducing admixture；
D, heat treatment, temper again after integral quenching；
E, polish；
E1, finish turning, first car removes end face allowance centering, and then turning removes each step surface place allowance, then the cylindrical of turnery processing axle and reserved 0.1mm～0.4mm allowance；
E2, cylindrical grinding, it is Ra0.8 that axle Excircle machining surplus to surface roughness is removed in grinding, and it is Ra1.6 that outside circle allowance to surface roughness is removed in grinding, and grinding axial end to surface roughness is Ra0.8, and grinding pillow block terrace to surface roughness is Ra1.6；
E3, roll flute, the grinding flank of tooth to surface roughness is Ra0.8；
F, inspection, inspection overall dimension also fills in examining report, puts in storage after having detected.
2. high-power wind turbine unit main gear shaft processing technique as claimed in claim 1, it is characterised in that: in step b3, adopt high speed tooth milling machine mill teeth.
3. high-power wind turbine unit main gear shaft processing technique as claimed in claim 1, it is characterised in that: in step d, adopt sealed multipurpose furnace.
4. high-power wind turbine unit main gear shaft processing technique as claimed in claim 1, it is characterised in that: in step a, selection is 18CrNiMo6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310657178.9A CN103722351B (en) | 2013-12-04 | 2013-12-04 | High-power wind turbine unit main gear shaft processing technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310657178.9A CN103722351B (en) | 2013-12-04 | 2013-12-04 | High-power wind turbine unit main gear shaft processing technique |
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| Publication Number | Publication Date |
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| CN103722351A CN103722351A (en) | 2014-04-16 |
| CN103722351B true CN103722351B (en) | 2016-07-06 |
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| CN105522355A (en) * | 2014-12-31 | 2016-04-27 | 中冶南方(武汉)重工制造有限公司 | Manufacturing and processing method for spiral gear capable of axially moving |
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| CN107263028A (en) * | 2017-06-20 | 2017-10-20 | 合肥尚涵装饰工程有限公司 | A kind of processing technology of Novel shaft class part machinery |
| CN108838632A (en) * | 2018-09-04 | 2018-11-20 | 广州市锐美汽车零部件有限公司 | A kind of electric machine main shaft processing method |
| CN110227914B (en) * | 2019-05-27 | 2022-07-12 | 郑州机械研究所有限公司 | High-precision machining method for gear shaft of high-speed wire finishing mill |
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| CN115255842A (en) * | 2022-06-23 | 2022-11-01 | 中国第一汽车股份有限公司 | Processing method of transmission gear and transmission gear |
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Address after: 116600 No. 48-1 Fuquan North Road, Dalian Economic and Technological Development Zone, Liaoning Province Patentee after: Dalian geener heavy Limited by Share Ltd Address before: 116630 Liaoning province Dalian city Jinzhou District Dong Jia Gou Fuquan Road No. 48 Dalian geener Heavy Machinery Co. Patentee before: Dalian Clean Energy Heavy Industrial Co., Ltd. |
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