CN201501907U - Out-of-tolerance correcting device for quenching deformation of bearing ring for wind-driven generator - Google Patents
Out-of-tolerance correcting device for quenching deformation of bearing ring for wind-driven generator Download PDFInfo
- Publication number
- CN201501907U CN201501907U CN200920235641XU CN200920235641U CN201501907U CN 201501907 U CN201501907 U CN 201501907U CN 200920235641X U CN200920235641X U CN 200920235641XU CN 200920235641 U CN200920235641 U CN 200920235641U CN 201501907 U CN201501907 U CN 201501907U
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- bearing ring
- pressing plate
- pull rods
- tolerance
- pressure plate
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Abstract
An out-of-tolerance correcting device for the quenching deformation of a bearing ring for a wind-driven generator comprises a pressure plate and pull rods arranged at the deformed extension part of the bearing ring, namely, two ends in the elliptical long-axis direction. Holes in number corresponding to that of the upper and the lower pull rods are formed on the pressure plate, the size of the opening position of the upper and the lower pull rods on the pressure plate is slightly larger than the width of the cross section of the bearing ring, the pull rods penetrates through the holes on the pressure plate, and nuts are fixed on screws at the end parts of the pull rods. The applied pressure can be controlled by the screwing degree of the nuts on the screws at the end parts of the pull rods. 4 to 12 pull rods are adopted generally, and 4 to 12 holes are formed on the pressure plate. The utility model has a simple device, and can correct the out-of-tolerance of the bearing ring deformation semi-quantificationally or quantificationally, mainly correct the out-of-tolerance of the ellipticity, and ensure that the next processing has no influence on the depth of a quenching layer.
Description
Technical field
The utility model relates to the correction device of quenching deformation out-of-tolerance of bearing ring of wind driven generator, the overproof heat setting type correction device of especially two raceway pitch variable bearings ring quenching distortion.
Background technology
1.5MW about and the pitch variable bearings that adopts of above aerogenerator be by inside and outside lasso, add that steel ball, spacing block etc. assemble.The diameter of the inside and outside lasso of pitch variable bearings reaches about two meters, and the interval between two raceways (steel ball is installed in raceway) of inside and outside lasso have only ten surplus millimeter, be the assurance of pitch variable bearings working life to the quenching quality on the surface (concave arc shape) of each lasso.The wind-driven generator pitching bearing is two raceway four point-contact junction structures, quench treatment need be carried out in the surface of two raceways of its inside and outside lasso, also to guarantee its precision, because the hardness of raceway and precision all play crucial effects to the technical indicators such as friction staring torque of bearing.Yet it is overproof to the distortion that exists probably after the bearing ring quenching, because pitch variable bearings outer ring wall thickness reaches about 1: 70 with the ratio of circumference length of run, therefore after quenching, because the comprehensive action of structural stress and thermal stresses, have the part lasso can produce distortion overproof (＞0.2/1000mm), promptly ovality is overproof, not only increases stock removal subsequently, and can not guarantee depth of hardening after the grinding to influence quality product.
The utility model content
The utility model purpose is: propose the overproof correction device of a kind of aerogenerator bearing ring distortion, adopt more brief device to finish the overproof correction of bearing ring distortion, mainly be that the overproof of ovality proofreaied and correct, guarantee that the depth of hardening after the grinding is unaffected, thereby guarantee the quality of whole bearing.
Technical solutions of the utility model are, the correction device that the distortion of aerogenerator bearing ring is overproof, by the elongation position that is located at bearing ring distortion is that the pressing plate and the pull bar at long axis of ellipse direction two ends constitutes, have on the pressing plate and the corresponding hole of last lower link radical, the position of the last lower link perforate of pressing plate is slightly larger than the width in the cross section of lasso, pull bar passes the perforate on the pressing plate, and nut is fixed in the tie rod end screw.By nut tie rod end screw means degree in order to control applied pressure.Commonly used is 4-12 root pull bar, then has 4-12 hole on the pressing plate.
Adopt the overproof correction device of aerogenerator bearing ring distortion, bearing ring is measured, find out the transverse direction of lasso distortion, the elongation position that lasso is out of shape is that the long axis of ellipse direction adopts anchor clamps to exert pressure, and pressure is pressed to long axis of ellipse direction two ends, proofread and correct its distortion, and placing the tempering stove low-temperaturetempering together with anchor clamps, the temperature 160-200 of low-temperaturetempering ℃, the time is 4-8 hour, make it typing, and eliminate and proofread and correct stress.
Posting stress section when exerting pressure on pull bar revolves the pressure that is added in the lasso transverse to the pull bar upper stress and measures.Timing, technical parameter such as the temperature the when direction of exerting pressure, size and tempering and soaking time directly has influence on gauged effect.After heat setting type is proofreaied and correct, to guarantee under the qualified prerequisite of its quenching hardness and depth of hardening, radial-deformation can reach fully≤technical requirements of 0.2/1000mm.
Adopt heat setting type to proofread and correct simultaneously, guarantee lasso radial-deformation≤0.2/1000mm.
The utility model beneficial effect is: install brief, can sxemiquantitative or quantitatively finish the overproof correction of bearing ring distortion, mainly be that the overproof of ovality proofreaied and correct, guarantee that the processing of road, back do not have influence to depth of hardening, thereby guarantee the quality of whole bearing.
Description of drawings
Fig. 1 is the utility model structural section synoptic diagram,
Embodiment
After the two raceways quenchings of the annular of bearing ring, earlier bearing ring is measured, finding out the transverse direction and the mark of lasso distortion, is that the position of long axis of ellipse direction adopts anchor clamps to exert pressure to the elongation position of lasso distortion, and pressure is pressed to the long axis of ellipse direction two ends of mark.For the bearing ring (about wide 15cm) of 2 rice diameters, the length and width of arm-tie are 15-40cm.The thickness of pressing plate will reach about 50mm, and the diameter of pull bar is at 15-30mm, with the base measuring pressure that guarantees to apply.
The mode that the utility model is exerted pressure is all to be adjacent to a pressing plate at long axis of ellipse direction two ends, has the hole corresponding with the pull bar radical on the pressing plate, and more usually 4 or 8 pull bars then have 4 or 8 holes.Pull bar passes the hole of pressing plate, is used to control applied pressure by nut at tie rod end screw means degree.As shown in the figure, the position of the last lower link of pressing plate is slightly larger than the width in the cross section of lasso.Timing, the device of adjusting the direction of exerting pressure is: typically adopt the structure of four pull bars, the stress of every bar is also asymmetric then can regulate direction, and stress intensity is regulated by the degree of tightness of spiral.
Setting nut places the tempering stove low-temperaturetempering together with anchor clamps behind the position of pull bar screw, 180 ℃ of the temperature of low-temperaturetempering, 4-8h; Applied pressure is big, and the time of low-temperaturetempering is long, otherwise tempering time can be lacked.Make it typing, and eliminate stress.Certainly also will be according to the size of radial-deformation, it is greater to reach the stress that then applies more than the 1/1000mm as deflection.
Timing, technical parameter such as the temperature the when direction of exerting pressure, size and tempering and soaking time directly has influence on gauged effect.After heat setting type is proofreaied and correct, to guarantee under the qualified prerequisite of its quenching hardness and depth of hardening, radial-deformation can reach fully≤technical requirements of 0.2/1000mm.
Claims (3)
1. the aerogenerator bearing ring is out of shape overproof correction device, it is characterized in that by the elongation position that is located at bearing ring distortion being that the pressing plate and the pull bar at long axis of ellipse direction two ends constitutes, have on the pressing plate and the corresponding hole of last lower link radical, the position of the last lower link perforate of pressing plate is slightly larger than the width in the cross section of lasso, pull bar passes the perforate on the pressing plate, nut is fixed in the tie rod end screw, has 4-12 hole on the pressing plate, corresponding 4-12 root pull bar.
2. the correction device of quenching deformation out-of-tolerance of bearing ring of wind driven generator according to claim 1 is characterized in that the thickness 50mm of pressing plate, and the diameter of pull bar is at 15-30mm.
3. the correction device of quenching deformation out-of-tolerance of bearing ring of wind driven generator according to claim 1 is characterized in that adopting 4 or 8 pull bars, then has 4 or 8 holes on the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920235641XU CN201501907U (en) | 2009-10-16 | 2009-10-16 | Out-of-tolerance correcting device for quenching deformation of bearing ring for wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920235641XU CN201501907U (en) | 2009-10-16 | 2009-10-16 | Out-of-tolerance correcting device for quenching deformation of bearing ring for wind-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201501907U true CN201501907U (en) | 2010-06-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920235641XU Expired - Fee Related CN201501907U (en) | 2009-10-16 | 2009-10-16 | Out-of-tolerance correcting device for quenching deformation of bearing ring for wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201501907U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060537A (en) * | 2011-10-21 | 2013-04-24 | 昆山鑫昌泰模具科技有限公司 | Metal heat treatment combined type cooling and correcting device |
| CN109604389A (en) * | 2018-12-06 | 2019-04-12 | 中国航发贵州黎阳航空动力有限公司 | A kind of big thickness rectifier brazing deformation bearing calibration and device |
-
2009
- 2009-10-16 CN CN200920235641XU patent/CN201501907U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060537A (en) * | 2011-10-21 | 2013-04-24 | 昆山鑫昌泰模具科技有限公司 | Metal heat treatment combined type cooling and correcting device |
| CN109604389A (en) * | 2018-12-06 | 2019-04-12 | 中国航发贵州黎阳航空动力有限公司 | A kind of big thickness rectifier brazing deformation bearing calibration and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20171016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |