CN111822949A - Surface machining process for wind power gear ring - Google Patents
Surface machining process for wind power gear ring Download PDFInfo
- Publication number
- CN111822949A CN111822949A CN202010599237.1A CN202010599237A CN111822949A CN 111822949 A CN111822949 A CN 111822949A CN 202010599237 A CN202010599237 A CN 202010599237A CN 111822949 A CN111822949 A CN 111822949A
- Authority
- CN
- China
- Prior art keywords
- wind power
- gear ring
- turning
- power gear
- cbn
- Prior art date
- 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.)
- Granted
Links
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to the field of machining of slewing bearing products, in particular to a surface machining process for a wind power gear ring. Turning instead of grinding is adopted for machining, a cutter with surface hardness of 26-32HRC is adopted for turning, and the surface roughness requirement of Rz2-4um is met through reasonable cutting depth, feeding amount and linear speed; compared with grinding, the single piece processing efficiency can be improved by 50%, the single piece cost is saved by more than 30%, the quality risk is reduced, positive significance is achieved on preventing surface layer burning and cracks of the product, indexes such as end face jumping and flatness of the product can be guaranteed, and the surface roughness of the processed product meets the requirements of the product.
Description
Technical Field
The invention relates to the field of machining of slewing bearing products, in particular to a surface machining process for a wind power gear ring.
Background
The yaw gear ring is one of key parts in a yaw system of the wind power equipment, and the function of the yaw gear ring is equivalent to that of a large sliding bearing. The wind power generation device is positioned at the bottom of a cabin base, the lower end of the wind power generation device is fixedly connected with a tower cylinder through a bolt, the upper part of the wind power generation device supports the whole cabin through a sliding surface, the periphery of the wind power generation device is meshed with an output gear of a yaw speed reducer, and the yaw speed reducer is driven by a yaw motor to drive a cabin mechanism to integrally and slowly rotate so that an impeller aligns to the incoming wind direction to obtain the maximum wind energy and. The requirements of the inner diameter and the surface quality of an end face sliding area, the parallelism difference, the bounce and the like are high, and the product belongs to soft surface processing, so the current mature process can only grind, but the processing efficiency is low, the process is single, the output quantity is limited, and the market requirement cannot be met.
Disclosure of Invention
In view of the defects, the invention seeks a wind power gear ring surface processing technology which can meet the process requirements and can meet the market requirements at high efficiency, has high processing efficiency and high cost performance, and is suitable for all occasions needing to improve the surface roughness on soft surfaces.
In order to achieve the purpose, the invention adopts the technical scheme that: a wind power gear ring surface processing technology adopts turning instead of grinding, wherein turning adopts a cutter realizing surface hardness of 26-32HRC, and the Rz2-4um surface roughness requirement is met through reasonable cutting depth, feeding amount and linear speed; the specific process steps are as follows:
step 1: checking and accepting incoming materials;
step 2: finish turning an end face C, an outer diameter, a first tooth table diameter, an inner diameter and a first chamfer;
and step 3: typing in the inner diameter;
and 4, step 4: finish turning an end face B, a second tooth table diameter, a second inner diameter, a step face, a fillet and a second chamfer;
and 5: roughly machining teeth;
step 6: aging treatment;
and 7: finish machining of the teeth;
and 8: typing at the tooth top;
and step 9: quenching, tempering and detecting flaws of the teeth;
step 10: removing and oxidizing teeth;
step 11: a lead drill is provided with a threaded hole and an N hole bottom hole;
step 12: drilling a mounting counter bore, mounting a thread bottom, chamfering a bottom hole and drilling an N-hole bottom hole;
step 13: chamfering an orifice, tapping a mounting threaded hole and tapping an N hole;
step 14: repairing an end face B, two inner diameters, a step face, an inner diameter, a fillet and a chamfer;
step 15: repairing the end face C;
step 16: acute angle passivation, burr removal and cleaning;
and step 17: tooth jump detection and tooth top painting identification.
After the process step is finished in the step 13, turning is carried out by a CBN arc turning tool in the final turning process of the step 14 and the step 15;
furthermore, the curvature radius of the CBN arc turning tool is 6.35 mm; compared with the traditional square cutter or the cutter point with a large radius from diamond, the surface generated in the machining process is smoother by adopting the turning tool with the shape;
further, the CBN arc turning tool blade is a CBN material with the diameter of phi 12.7 mm;
further, the arc turning tool comprises a main cutting edge and an auxiliary cutting edge, wherein the main cutting edge is responsible for turning, and the auxiliary cutting edge is responsible for rolling;
the limit linear speed of the CBN arc turning tool is 260 m/min;
further, in the final turning process of step 14 and step 15, the turning conditions of the CBN turning tool are as follows: cutting depth ap: 0.2mm, feed amount f: 0.12mm/r, linear velocity S: 200 m/min.
Furthermore, the CBN arc turning tool adopts an installation mode lower than the center of the workpiece, and the processing effect of high flexibility shock absorption is achieved.
The diameters of products processed by the processing technology of the wind power gear ring comprise phi 3000-phi 4500mm, the required surface roughness Rz2-Rz4um and the surface hardness 26-32HRC of the products belong to soft surfaces.
The technical scheme of the invention has the beneficial effects that: the turning is adopted to replace the grinding, compared with the grinding, the single piece processing efficiency can be improved by 50%, the single piece cost can be saved by more than 30%, the quality risk is reduced, the positive significance is achieved on preventing the surface layer of the product from burning and cracking, the indexes such as the end face run-out and the planeness of the product can be ensured, and the surface roughness of the processed product meets the product requirement and is between Rz2 and Rz 4; adopt special turning cutter, can satisfy the technological requirement completely with the hard car processing technology of phi 12.7mm CBN material hard car blade, its advantage lies in that the radius of curvature of circular sword is many times bigger than the knife tip radius of traditional square knife or rhombus sword, and the surface that produces in its course of working is more level and smooth, selects through reasonable cutting depth, feed and linear velocity like this, just can guarantee the surface roughness of product, and this blade possesses simultaneously: 1. the multi-transposition and repeated use of the blade can embody the high cost performance; 2. the method has a limit linear speed of 260m/min, and can be met by 200m/min in actual processing; 3. the multi-point cutting machine has the characteristics of multi-point cutting, allowance removal, and processing effects of polishing and rolling the processed surface; 4. adopt the cutter mounting means who is less than the work piece center, reach high flexibility inhale shake the processing effect 5, can form the high wearability sclerosis layer of degree of depth 5um on the machined surface, do benefit to the life who improves the brake position.
Drawings
FIG. 1 is a flow chart of the processing technique of the present invention.
FIG. 2 is a diagram of the structure of the product processed by the process of the present invention.
Fig. 3 is a structural view of the present invention when a turning tool is used to machine a product.
FIG. 4 is a structural diagram of a finished product processed by the processing technology of the invention.
In the figure, 1, end faces C and 2, first tooth table diameters, 3, inner diameters, 4, first chamfers, 5, end faces B and 6, second tooth table diameters, 7, second inner diameters, 8, step faces, 9, fillets, 10, second chamfers, 11, teeth, 12, installation threaded holes, 13, circular arc turning tools, 14 and workpieces.
Detailed Description
The process flow of the present invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1-4, a wind power gear ring surface processing technology adopts turning instead of grinding, wherein turning adopts a cutter for realizing surface hardness of 26-32HRC, and the Rz2-4um surface roughness requirement is met through reasonable cutting depth, feeding amount and linear speed; the specific process steps are as follows:
step 1: checking and accepting incoming materials;
step 2: finish turning an end face C, an outer diameter, a first tooth table diameter, an inner diameter and a first chamfer;
and step 3: typing in the inner diameter;
and 4, step 4: finish turning an end face B, a second tooth table diameter, a second inner diameter, a step face, a fillet and a second chamfer;
and 5: roughly machining teeth;
step 6: aging treatment;
and 7: finish machining of the teeth;
and 8: typing at the tooth top;
and step 9: quenching, tempering and detecting flaws of the teeth;
step 10: removing and oxidizing teeth;
step 11: a lead drill is provided with a threaded hole and an N hole bottom hole;
step 12: drilling a mounting counter bore, mounting a thread bottom, chamfering a bottom hole and drilling an N-hole bottom hole;
step 13: chamfering an orifice, tapping a mounting threaded hole and tapping an N hole;
step 14: repairing an end face B, two inner diameters, a step face, an inner diameter, a fillet and a chamfer;
step 15: repairing the end face C;
step 16: acute angle passivation, burr removal and cleaning;
and step 17: tooth jump detection and tooth top painting identification.
After the process step is finished in the step 13, turning is carried out by a CBN arc turning tool in the final turning process of the step 14 and the step 15;
furthermore, the curvature radius of the CBN arc turning tool is 6.35 mm; compared with the traditional square cutter or the cutter point with a large radius from diamond, the surface generated in the machining process is smoother by adopting the turning tool with the shape;
further, the CBN arc turning tool blade is a CBN material with the diameter of phi 12.7 mm;
further, the arc turning tool comprises a main cutting edge and an auxiliary cutting edge, wherein the main cutting edge is responsible for turning, and the auxiliary cutting edge is responsible for rolling;
the limit linear speed of the CBN arc turning tool is 260 m/min;
further, in the final turning process of step 14 and step 15, the turning conditions of the CBN turning tool are as follows: cutting depth ap: 0.2mm, feed amount f: 0.12mm/r, linear velocity S: 200 m/min.
Furthermore, the CBN arc turning tool adopts an installation mode lower than the center of the workpiece, and the processing effect of high flexibility shock absorption is achieved.
The diameters of products processed by the processing technology of the wind power gear ring comprise phi 3000-phi 4500mm, the required surface roughness Rz2-Rz4um and the surface hardness 26-32HRC of the products belong to soft surfaces.
Claims (7)
1. A surface machining process for a wind power gear ring is characterized by comprising the following specific process steps:
step 1: checking and accepting incoming materials;
step 2: finish turning an end face C, an outer diameter, a first tooth table diameter, an inner diameter and a first chamfer;
and step 3: typing in the inner diameter;
and 4, step 4: finish turning an end face B, a second tooth table diameter, a second inner diameter, a step face, a fillet and a second chamfer;
and 5: roughly machining teeth;
step 6: aging treatment;
and 7: finish machining of the teeth;
and 8: typing at the tooth top;
and step 9: quenching, tempering and detecting flaws of the teeth;
step 10: removing and oxidizing teeth;
step 11: a lead drill is provided with a threaded hole and an N hole bottom hole;
step 12: drilling a mounting counter bore, mounting a thread bottom, chamfering a bottom hole and drilling an N-hole bottom hole;
step 13: chamfering an orifice, tapping a mounting threaded hole and tapping an N hole;
step 14: repairing an end face B, two inner diameters, a step face, an inner diameter, a fillet and a chamfer;
step 15: repairing the end face C;
step 16: acute angle passivation, burr removal and cleaning;
and step 17: tooth jump detection and tooth top painting identification.
2. The wind power gear ring surface machining process according to claim 1, characterized in that: and after the process steps are finished in the step 13, turning by using a CBN (cubic boron nitride) arc turning tool in the final turning process of the step 14 and the step 15.
3. The wind power gear ring surface machining process according to claim 2, characterized in that: the curvature radius of the CBN arc turning tool is 6.35 mm.
4. The wind power gear ring surface machining process according to claim 3, characterized in that: the CBN arc turning tool blade is made of a CBN material with the diameter of 12.7 mm.
5. The wind power gear ring surface machining process according to claim 4, characterized in that: the limit linear speed of the CBN arc turning tool is 260 m/min.
6. The wind power gear ring surface machining process according to claim 2, characterized in that: in the final turning process of step 14 and step 15, the turning conditions of the CBN circular arc turning tool are as follows: cutting depth ap: 0.2mm, feed amount f: 0.12mm/r, linear velocity S: 200 m/min.
7. The wind power gear ring surface machining process according to claim 1, characterized in that: the CBN arc turning tool adopts an installation mode lower than the center of the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010599237.1A CN111822949B (en) | 2020-06-28 | 2020-06-28 | Surface machining process for wind power gear ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010599237.1A CN111822949B (en) | 2020-06-28 | 2020-06-28 | Surface machining process for wind power gear ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111822949A true CN111822949A (en) | 2020-10-27 |
| CN111822949B CN111822949B (en) | 2022-03-29 |
Family
ID=72899383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010599237.1A Active CN111822949B (en) | 2020-06-28 | 2020-06-28 | Surface machining process for wind power gear ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111822949B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19644967A1 (en) * | 1995-10-30 | 1997-05-07 | Nissan Motor | Method for manufacturing of drive roller for Torus-type stageless gear |
| GB2466282A (en) * | 2008-12-18 | 2010-06-23 | Dana Axle Uk Ltd | Method of machining a flange on a differential input pinion shaft |
| CN102658461A (en) * | 2012-05-22 | 2012-09-12 | 綦江重配齿轮有限公司 | Axle gear ring tray machining process |
| CN105538154A (en) * | 2016-02-04 | 2016-05-04 | 华侨大学 | Testing method of continuous scratching interference behavior of single abrasive grain of black metal test piece pre-repaired by CBN tool |
| CN109262213A (en) * | 2018-10-29 | 2019-01-25 | 甘肃酒钢集团西部重工股份有限公司 | A kind of manufacturing method of large modulus cast steel bull gear |
-
2020
- 2020-06-28 CN CN202010599237.1A patent/CN111822949B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19644967A1 (en) * | 1995-10-30 | 1997-05-07 | Nissan Motor | Method for manufacturing of drive roller for Torus-type stageless gear |
| GB2466282A (en) * | 2008-12-18 | 2010-06-23 | Dana Axle Uk Ltd | Method of machining a flange on a differential input pinion shaft |
| CN102658461A (en) * | 2012-05-22 | 2012-09-12 | 綦江重配齿轮有限公司 | Axle gear ring tray machining process |
| CN105538154A (en) * | 2016-02-04 | 2016-05-04 | 华侨大学 | Testing method of continuous scratching interference behavior of single abrasive grain of black metal test piece pre-repaired by CBN tool |
| CN109262213A (en) * | 2018-10-29 | 2019-01-25 | 甘肃酒钢集团西部重工股份有限公司 | A kind of manufacturing method of large modulus cast steel bull gear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111822949B (en) | 2022-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102039519B (en) | Manufacturing process of high-precision extrusion die for DeNOx catalyst | |
| CN105665805B (en) | One kind is hardened the special indexable hat rose cutter of steel mold | |
| CN107344247B (en) | Machining process of cutter head | |
| CN201211566Y (en) | Numerically controlled machine cutting tool on-line grinding device | |
| CN104551141A (en) | Titanium alloy casting milling method | |
| CN111015142A (en) | Hard alloy woodworking cutting milling cutter and processing technology thereof | |
| CN202461966U (en) | Machining device for caterpillar track section | |
| CN103480919B (en) | Large modulus Hardened gear face tooth bar profile of tooth method for fine finishing | |
| JP6432989B2 (en) | Chamfering cutter with helical pointed blade and discharge groove | |
| CN2808388Y (en) | Digital-controlled profiled saw blade for steel pipe | |
| CN205949880U (en) | Cutter that complete martensite alloy steel of cryrogenic that hardens cut firmly | |
| CN201316830Y (en) | Rough milling cutter for concave groove | |
| CN111822949B (en) | Surface machining process for wind power gear ring | |
| CN103406608B (en) | The lathe tool of simultaneous manufacturing copper nut trapezoidal internal thread and using method thereof | |
| CN210755226U (en) | Elastic cutter for processing burrs of front and back surface holes and crossed through holes | |
| CN109604725B (en) | Efficient cutting machining method for inner shape of thin-wall multi-groove-cavity part | |
| CN202656036U (en) | Screw tap grooving machine | |
| CN110625340A (en) | TA15 titanium alloy support class forge piece blank part machining process | |
| CN105215448A (en) | The special-purpose milling cutter of processing boiler part die cavity and manufacturing forming process thereof | |
| CN104002109B (en) | The processing method of the dark narrow annular groove on a kind of step end face of multidiameter | |
| CN110961663A (en) | Aperture turning tool for grinding wheel finish machining and machining method thereof | |
| CN103231101B (en) | Rotary ultrasonic cutting tool | |
| CN102398156A (en) | Dual-purpose guide rail bed for milling and grinding | |
| CN220095051U (en) | Milling cutter | |
| CN217668350U (en) | Clamp for plane grinding of small cylindrical or circular sheet products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |