CN102229035A - Method for simply replacing bearing for megawatt wind turbine - Google Patents
Method for simply replacing bearing for megawatt wind turbine Download PDFInfo
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- CN102229035A CN102229035A CN2011101239571A CN201110123957A CN102229035A CN 102229035 A CN102229035 A CN 102229035A CN 2011101239571 A CN2011101239571 A CN 2011101239571A CN 201110123957 A CN201110123957 A CN 201110123957A CN 102229035 A CN102229035 A CN 102229035A
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- dismounting
- bearing
- collector ring
- frock
- wind turbine
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Abstract
The invention discloses a method for simply replacing a bearing for a megawatt wind turbine. The method comprises the following steps: (1) mounting and dismounting a main shaft shield ring and a sensor slice; (2) dismounting a front bearing head, a back bearing head, a rotor junction box and a collecting ring shell; (3) dismounting the front bearing and the back bearing, wherein fixtures comprise a beam-hanging fixture, a collecting ring dismounting fixture, a bearing head dismounting fixture, a bearing drawing fixture and an auxiliary fixture. The method in the invention can be used for finishing the bearing replacing operation within a limited cabin space, and has the advantages of being simple and safe in operation, being convenient in dismounting and reassembling and the like.
Description
Technical field
The present invention relates to the bearing replacing method field, particularly the simple and easy replacing method of MW class wind turbine bearing.
Background technology
Along with science and technology development, wind-power electricity generation is as a reproducible environmental protection novel clean energy, be subjected to the great attention of various countries, obtained significant progress, the wind-driven generator bearing mainly comprises: the driftage bearing assembly, the fan blade main shaft bearing, transmission bearing, dynamo bearing etc., wind-driven generator is worked throughout the year in the open air, working condition is more abominable, temperature, humidity and bearing load change all very greatly, wind speed reaches as high as 23m/s, shock loading is arranged, therefore require bearing that excellent sealing performance is arranged, greasy property, shock-resistant, long-life and high reliability, bearing life was generally 5 years, must change after 5 years, in recent years, because the generator of bearing fault undercarriage is more and more, the company of giving and user have caused enormous economic loss, and the existing bearing replacing has complicated operation, how therefore shortcomings such as the handling safety coefficient is low solve the work of changing bearing and manifest very urgently.
Summary of the invention
Purpose of the present invention promptly is to overcome the deficiencies in the prior art, provides a kind of MW class wind turbine bearing simple and easy replacing method.
The objective of the invention is to be achieved through the following technical solutions: the simple and easy replacing method of MW class wind turbine bearing, it may further comprise the steps:
(1) dismounting of main shaft back-up ring, sensor chip: adopt the heating of electromagnetism furnace oil temperature during assembling;
(2) front axle is taken the lead, rear axle is taken the lead, the dismounting of rotor wiring case and collector ring casing: driving end is by bearing head dismounting frock dismounting bearing head and bearing end cover, the former assembling state of bearing end cover plate is constant, pass through air gap adjustment hole pad 2mm air gap clearance gauge in the disassembly process, guarantee that the unloading process rotor does not move down, guarantee that the position does not change; Non-transmision end adopts hanging beam frock dismounting collector ring casing and rotor wiring case by the auxiliary dismounting rotor wiring case of cabin crane, adopts collector ring dismounting frock dismounting collector ring, adopts bearing head dismounting frock dismounting bearing head;
(3) dismounting of front and back bearings: remove old bearing by the drawing of bearing drawing frock, adopt the heating of electromagnetism furnace oil temperature when assembling new bearing, and to control temperature be 80 ~ 90 ℃.
The method of described hanging beam frock dismounting collector ring casing and rotor wiring case is: find the hanging beam strong point accurately, by movable pulley and 90 degree rotation hanging beam dismounting collector ring casing and rotor wiring casees; The method of described collector ring dismounting frock dismounting collector ring is: use end face during dismounting, logically makes screw acting power the cold drawn dismounting of collector ring, during assembling with heat pipe closing end face, collector ring is inserted in, heat and make its expansion by the electric heating rifle of drying, push main shaft again; The method of described bearing head dismounting frock dismounting bearing head is: according to bearing head and bearing (ball) cover assembly structure; adopt bolt hole; cooperate with double nut by long bolt; to the double nut application of force; with the screw rod opposition bearing head is pulled out; with screw rod positive acting power bearing head is packed into; described frock also comprises auxiliary mould; described auxiliary mould is for preventing that the weight parts are subjected to displacement in the unloading process; some special limited blocks, bearing protecting jacket, spacing clearance gauge etc. are strengthened protective device, guarantee that the fitted position that postorder assembles again meets the requirements.
Described heat pipe comprises that tube wall opens the circular hole heat pipe; Described bolt hole comprises the M20 bolt hole; Described end face comprises Φ 92 end faces.
The invention has the beneficial effects as follows: the present invention finishes in limited cabin space and changes the bearing operation, has simple to operate, handling safety, easy disassembly and refill advantage such as to join.
The specific embodiment
The present invention will be further described below in conjunction with embodiment.
Embodiment 1:
The simple and easy replacing method of MW class wind turbine bearing, it may further comprise the steps:
(1) dismounting of main shaft back-up ring, sensor chip: adopt the heating of electromagnetism furnace oil temperature during assembling;
(2) front axle is taken the lead, rear axle is taken the lead, the dismounting of rotor wiring case and collector ring casing: driving end is by bearing head dismounting frock dismounting bearing head and bearing end cover, the former assembling state of bearing end cover plate is constant, pass through air gap adjustment hole pad 2mm air gap clearance gauge in the disassembly process, guarantee that the unloading process rotor does not move down, guarantee that the position does not change; Non-transmision end adopts hanging beam frock dismounting collector ring casing and rotor wiring case by the auxiliary dismounting rotor wiring case of cabin crane, adopts collector ring dismounting frock dismounting collector ring, adopts bearing head dismounting frock dismounting bearing head.The method of described bearing head dismounting frock dismounting bearing head is: according to bearing head and bearing (ball) cover assembly structure, adopt 4 M20 bolts hole, cooperate with double nut by long bolt, to the double nut application of force, with the screw rod opposition bearing head is pulled out, with screw rod positive acting power bearing head is packed into, the method of described hanging beam frock dismounting collector ring casing and rotor wiring case is: find the hanging beam strong point accurately, by movable pulley and 90 degree rotation hanging beam dismounting collector ring casing and rotor wiring casees, the method of described collector ring dismounting frock dismounting collector ring is: use end face during dismounting, lead to and make screw acting power the cold drawn dismounting of collector ring, open the circular hole heat pipe closing Φ 92 end faces with tube wall during assembling, collector ring is inserted in, makes its expansion, push main shaft again by the heating of electric heating blowing rifle;
(3) dismounting of front and back bearings: remove old bearing by the drawing of bearing drawing frock, adopt the heating of electromagnetism furnace oil temperature when assembling new bearing, and to control temperature be 80 ℃.
Described frock also comprises auxiliary mould, and described auxiliary mould is for preventing that the weight parts are subjected to displacement in the unloading process, reinforcement such as some special limited blocks, bearing protecting jacket, spacing clearance gauge protective device, the fitted position requirement that the assurance postorder assembles again.
Embodiment 2:
The simple and easy replacing method of MW class wind turbine bearing, it may further comprise the steps:
(1) dismounting of main shaft back-up ring, sensor chip: adopt the heating of electromagnetism furnace oil temperature during assembling;
(2) front axle is taken the lead, rear axle is taken the lead, the dismounting of rotor wiring case and collector ring casing: driving end is by bearing head dismounting frock dismounting bearing head and bearing end cover, the former assembling state of bearing end cover plate is constant, pass through air gap adjustment hole pad 2mm air gap clearance gauge in the disassembly process, guarantee that the unloading process rotor does not move down, guarantee that the position does not change; Non-transmision end adopts hanging beam frock dismounting collector ring casing and rotor wiring case by the auxiliary dismounting rotor wiring case of cabin crane, adopts collector ring dismounting frock dismounting collector ring, adopts bearing head dismounting frock dismounting bearing head.The method of described bearing head dismounting frock dismounting bearing head is: according to bearing head and bearing (ball) cover assembly structure, adopt 4 M20 bolts hole, cooperate with double nut by long bolt, to the double nut application of force, with the screw rod opposition bearing head is pulled out, with screw rod positive acting power bearing head is packed into, the method of described hanging beam frock dismounting collector ring casing and rotor wiring case is: find the hanging beam strong point accurately, by movable pulley and 90 degree rotation hanging beam dismounting collector ring casing and rotor wiring casees, the method of described collector ring dismounting frock dismounting collector ring is: use end face during dismounting, lead to and make screw acting power the cold drawn dismounting of collector ring, open the circular hole heat pipe closing Φ 92 end faces with tube wall during assembling, collector ring is inserted in, makes its expansion, push main shaft again by the heating of electric heating blowing rifle;
(3) dismounting of front and back bearings: remove old bearing by the drawing of bearing drawing frock, adopt the heating of electromagnetism furnace oil temperature when assembling new bearing, and to control temperature be 90 ℃.
Described frock also comprises auxiliary mould; described auxiliary mould is for preventing that the weight parts are subjected to displacement in the unloading process; some special limited blocks, bearing protecting jacket, spacing clearance gauge etc. are strengthened protective device, guarantee that the fitted position that postorder assembles again meets the requirements.
Embodiment 3:
The simple and easy replacing method of MW class wind turbine bearing, it may further comprise the steps:
(1) dismounting of main shaft back-up ring, sensor chip: adopt the heating of electromagnetism furnace oil temperature during assembling;
(2) front axle is taken the lead, rear axle is taken the lead, the dismounting of rotor wiring case and collector ring casing: driving end is by bearing head dismounting frock dismounting bearing head and bearing end cover, the former assembling state of bearing end cover plate is constant, pass through air gap adjustment hole pad 2mm air gap clearance gauge in the disassembly process, guarantee that the unloading process rotor does not move down, guarantee that the position does not change; Non-transmision end adopts hanging beam frock dismounting collector ring casing and rotor wiring case by the auxiliary dismounting rotor wiring case of cabin crane, adopts collector ring dismounting frock dismounting collector ring, adopts bearing head dismounting frock dismounting bearing head.The method of described bearing head dismounting frock dismounting bearing head is: according to bearing head and bearing (ball) cover assembly structure, adopt 4 M20 bolts hole, cooperate with double nut by long bolt, to the double nut application of force, with the screw rod opposition bearing head is pulled out, with screw rod positive acting power bearing head is packed into, the method of described hanging beam frock dismounting collector ring casing and rotor wiring case is: find the hanging beam strong point accurately, by movable pulley and 90 degree rotation hanging beam dismounting collector ring casing and rotor wiring casees, the method of described collector ring dismounting frock dismounting collector ring is: use end face during dismounting, lead to and make screw acting power the cold drawn dismounting of collector ring, open the circular hole heat pipe closing Φ 92 end faces with tube wall during assembling, collector ring is inserted in, makes its expansion, push main shaft again by the heating of electric heating blowing rifle;
(3) dismounting of front and back bearings: remove old bearing by the drawing of bearing drawing frock, adopt the heating of electromagnetism furnace oil temperature when assembling new bearing, and to control temperature be 85 ℃.
Described frock also comprises auxiliary mould; described auxiliary mould is for preventing that the weight parts are subjected to displacement in the unloading process; some special limited blocks, bearing protecting jacket, spacing clearance gauge etc. are strengthened protective device, guarantee that the fitted position that postorder assembles again meets the requirements.
Claims (7)
1. the simple and easy replacing method of MW class wind turbine bearing, it is characterized in that: it may further comprise the steps:
(1) dismounting of main shaft back-up ring, sensor chip: adopt the heating of electromagnetism furnace oil temperature during assembling;
(2) front axle is taken the lead, rear axle is taken the lead, the dismounting of rotor wiring case and collector ring casing: driving end is by bearing head dismounting frock dismounting bearing head and bearing end cover, the former assembling state of bearing end cover plate is constant, pass through air gap adjustment hole pad 2mm air gap clearance gauge in the disassembly process, guarantee that the unloading process rotor does not move down, guarantee that the position does not change; Non-transmision end adopts hanging beam frock dismounting collector ring casing and rotor wiring case by the auxiliary dismounting rotor wiring case of cabin crane, adopts collector ring dismounting frock dismounting collector ring, adopts bearing head dismounting frock dismounting bearing head;
(3) dismounting of front and back bearings: remove old bearing by the drawing of bearing drawing frock, adopt the heating of electromagnetism furnace oil temperature when assembling new bearing, and to control temperature be 80 ~ 90 ℃.
2. the simple and easy replacing method of MW class wind turbine bearing according to claim 1, it is characterized in that: the method for described hanging beam frock dismounting collector ring casing and rotor wiring case is: find the hanging beam strong point accurately, by movable pulley and 90 degree rotation hanging beam dismounting collector ring casing and rotor wiring casees.
3. the simple and easy replacing method of MW class wind turbine bearing according to claim 1, it is characterized in that: the method for described collector ring dismounting frock dismounting collector ring is: use end face during dismounting, lead to and make screw acting power the cold drawn dismounting of collector ring, close end face with the heat pipe handle during assembling, collector ring is inserted in, make its expansion by the heating of electric heating blowing rifle, push main shaft again.
4. the simple and easy replacing method of MW class wind turbine bearing according to claim 1, it is characterized in that: the method for described bearing head dismounting frock dismounting bearing head is: according to bearing head and bearing (ball) cover assembly structure, adopt bolt hole, cooperate with double nut by long bolt, to the double nut application of force, with the screw rod opposition bearing head is pulled out, bearing head is packed into screw rod positive acting power.
5. the simple and easy replacing method of MW class wind turbine bearing according to claim 3 is characterized in that: described heat pipe comprises that tube wall opens the circular hole heat pipe.
6. the simple and easy replacing method of MW class wind turbine bearing according to claim 4, it is characterized in that: described bolt hole comprises the M20 bolt hole.
7. the simple and easy replacing method of MW class wind turbine bearing according to claim 3 is characterized in that: described end face comprises Φ 92 end faces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101239571A CN102229035A (en) | 2011-05-13 | 2011-05-13 | Method for simply replacing bearing for megawatt wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101239571A CN102229035A (en) | 2011-05-13 | 2011-05-13 | Method for simply replacing bearing for megawatt wind turbine |
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| Publication Number | Publication Date |
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| CN102229035A true CN102229035A (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101239571A Pending CN102229035A (en) | 2011-05-13 | 2011-05-13 | Method for simply replacing bearing for megawatt wind turbine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832755A (en) * | 2012-08-31 | 2012-12-19 | 山东电力集团公司济南供电公司 | Method for replacement of engine bearings in engine compartment of fan |
| CN103659153A (en) * | 2012-09-17 | 2014-03-26 | 上海南洋电机有限公司 | On-site maintenance method for wind-driven generator |
| CN111761295A (en) * | 2020-06-03 | 2020-10-13 | 明阳智慧能源集团股份公司 | Nondestructive separation and disassembly method for main shaft and bearing of wind generating set |
| CN111828398A (en) * | 2020-07-20 | 2020-10-27 | 淮南矿业(集团)有限责任公司 | Method for replacing bearing box in main ventilator hub reconstruction |
| CN113751994A (en) * | 2021-10-13 | 2021-12-07 | 上海电机系统节能工程技术研究中心有限公司 | Device and system for bearing press fitting |
| CN114654182A (en) * | 2022-02-28 | 2022-06-24 | 明阳智慧能源集团股份公司 | Method for replacing bearing tower of semi-direct-drive permanent magnet wind power generator |
-
2011
- 2011-05-13 CN CN2011101239571A patent/CN102229035A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832755A (en) * | 2012-08-31 | 2012-12-19 | 山东电力集团公司济南供电公司 | Method for replacement of engine bearings in engine compartment of fan |
| CN103659153A (en) * | 2012-09-17 | 2014-03-26 | 上海南洋电机有限公司 | On-site maintenance method for wind-driven generator |
| CN103659153B (en) * | 2012-09-17 | 2016-02-10 | 上海南洋电机有限公司 | A kind of on-site maintenance method of wind-driven generator |
| CN111761295A (en) * | 2020-06-03 | 2020-10-13 | 明阳智慧能源集团股份公司 | Nondestructive separation and disassembly method for main shaft and bearing of wind generating set |
| CN111761295B (en) * | 2020-06-03 | 2021-06-01 | 明阳智慧能源集团股份公司 | Nondestructive separation and disassembly method for main shaft and bearing of wind generating set |
| CN111828398A (en) * | 2020-07-20 | 2020-10-27 | 淮南矿业(集团)有限责任公司 | Method for replacing bearing box in main ventilator hub reconstruction |
| CN111828398B (en) * | 2020-07-20 | 2021-06-29 | 淮南矿业(集团)有限责任公司 | Method for replacing bearing box in main ventilator hub reconstruction |
| CN113751994A (en) * | 2021-10-13 | 2021-12-07 | 上海电机系统节能工程技术研究中心有限公司 | Device and system for bearing press fitting |
| CN114654182A (en) * | 2022-02-28 | 2022-06-24 | 明阳智慧能源集团股份公司 | Method for replacing bearing tower of semi-direct-drive permanent magnet wind power generator |
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Application publication date: 20111102 |