CN201730950U - Main shaft of wind generating set - Google Patents
Main shaft of wind generating set Download PDFInfo
- Publication number
- CN201730950U CN201730950U CN2010202975130U CN201020297513U CN201730950U CN 201730950 U CN201730950 U CN 201730950U CN 2010202975130 U CN2010202975130 U CN 2010202975130U CN 201020297513 U CN201020297513 U CN 201020297513U CN 201730950 U CN201730950 U CN 201730950U
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- CN
- China
- Prior art keywords
- main shaft
- bearing
- main bearing
- main
- flange end
- 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.)
- Expired - Fee Related
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- Y02E10/722—
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- Wind Motors (AREA)
Abstract
The utility model relates to a main shaft of a wind generating set. One end of the main shaft is a flange end (2) used for being connected with a wind wheel, and one section of the main shaft is a main bearing mounting section (1) which is fit and assembled with a main bearing. The utility model is characterized in that the main bearing mounting section (1) is gradually shrunk from one side near the flange end to one side which is far away from the flange end to form conicity. In the utility model, the conicity is formed at the position at which the main bearing is installed, and thus, the axial clearance of a bearing can be well regulated when the bearing is assembled to realize the proper fit compactness of a shaft and the bearing so that the bearing not only can flexibly rotate but also can stably bear the impact load from the flange end of the main shaft, which is beneficial to improving the load working condition of the bearing and a gear case, and thereby, the reliable running of a transmission system of the generating set is ensured.
Description
Affiliated technical field
The utility model relates to a kind of main shaft of wind power generating set, it specifically is a kind of main shaft that can accurately adjust the axial internal clearance of main bearing mounted thereto when mounted, this main shaft is convenient to control the axial displacement after main bearing is installed, with the correct nip of acquisition main shaft and main bearing, thus the correct installation of realization main shaft and main bearing.
Background technique
In wind power generating set assembling, the assembling of main shaft and main bearing is a very important operation, and in this operation, the fitting surface of main shaft and main bearing is evenly stressed, assembles firm and will guarantee the axial internal clearance of main bearing; Main bearing after the assembling will bear from the impulsive load of spindle flange end (being the load that wind wheel passes over), and the axial internal clearance of main bearing also can influence the load working condition of the gear-box that is connected with main shaft, and is most important to moving normally, efficiently of whole wind power generating set.It is cylindrical body that yet the main shaft of existing wind power generating set is used to install the position of main bearing, and main bearing is installed the bad adjustment axial internal clearance in back, thereby assembly quality is difficult to improve.
The model utility content
Problem to be solved in the utility model provides a kind of main shaft that can accurately adjust the axial internal clearance of main bearing mounted thereto when mounted, this main shaft is convenient to control the axial displacement after main bearing is installed, with the correct nip of acquisition main shaft and main bearing, thus the correct installation of realization main shaft and main bearing.
Problem to be solved in the utility model, can realize by following technological scheme: a kind of main shaft of wind power generating set, the one end is the flange end that is used to connect wind wheel, wherein one section is the main bearing construction section that cooperates assembling with main bearing, it is characterized in that: described main bearing construction section forms tapering by shrinking gradually away from a side of flange end near a side direction of flange end.When this spindle mounted is arrived wind power generating set, the main bearing (one is spheric roller bearing) of selecting inner ring to have corresponding tapering is mated assembling, because main shaft is at the Position Design tapering that main bearing is installed, when running in bearings, adjust the bearing axial internal clearance accurately, realize the nip that axle is correct with bearing by the hydraulic driving method.
The tapering of described main bearing construction section is 1: 30.Main shaft of the present utility model also has one section screw thread, and described screw thread is positioned at the side of main bearing construction section away from flange end, and the position is corresponding with the main bearing construction section.When adopting hydraulic driving method assembling main shaft and main bearing, at first hydraulic nut is installed to respective threaded place on the tapering main shaft, one side of hydraulic nut band piston is towards main bearing, hydraulic nut is gone in oiling, the special tooling that adopts oil hydraulic pump, hydraulic nut, installation oil, horizontal micrometer depth gauge to form is then accurately adjusted main bearing axial displacement.
The flange end of one end of main shaft of the present utility model for extending radially outwardly and form along it, the joint of the big end of this flange end and described main bearing construction section is with arc transition; Concentrate to reduce stress.
Compared with prior art; the utility model is at the Position Design tapering that main bearing is installed; when running in bearings, can adjust the bearing axial internal clearance well; realize the nip that axle is correct with bearing; bearing can be rotated flexibly and impulsive load can be born reposefully from the spindle flange end; help improving the load working condition of bearing and gear-box, thereby help guaranteeing the reliable operation of unit transmission system.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation after the utility model is installed.
Embodiment
The main shaft of wind power generating set as shown in Figure 1 is embodiment of the present utility model, its end is the flange end 2 for extending radially outwardly and form along it, this main shaft wherein one section be cooperate with main bearing the assembling main bearing construction section 1, and this main shaft also has one section screw thread 3, wherein main bearing construction section 1 forms 1: 30 tapering by shrinking gradually away from a side of flange end near a side direction of flange end, and the joint of the big end of flange end 2 and main bearing construction section 1 is with circular arc 4 transition; Screw thread 3 on the main shaft is positioned at the side of main bearing construction section 1 away from flange end, and the position is corresponding with the main bearing construction section.
When the main shaft that the utility model is provided is installed to wind power generating set, machining accuracy, the roughness of at first guaranteeing 1: 30 tapering position of main shaft meet matching requirements, then with main shaft and corresponding main bearing 5 assemblings, and the flange end of main shaft connects wind wheel (not shown), the other end of main shaft passes tensioner cover 6 and is connected with gear-box 7, as shown in Figure 2.In assembly process, main shaft is to guarantee the correct key point of installing of main shaft with the assembling that inner ring has the main bearing (spheric roller bearing) 5 of identical tapering, during assembling, wipes the rust preventing agent of main bearing endoporus earlier, and main bearing is installed on the tapering main shaft; Then hydraulic nut is installed to respective threaded place on the tapering main shaft, a side of hydraulic nut band piston is towards main bearing, and hydraulic nut is gone in oiling; The special tooling of using oil hydraulic pump, hydraulic nut, installation oil, horizontal micrometer depth gauge to form then, promoting main bearing moves vertically, accurately adjust the spheric roller bearing that is installed on the tapering main shaft, the axial displacement of control main bearing realizing correct nip, thereby realize the correct installation of main bearing and main shaft.
Claims (4)
1. the main shaft of a wind power generating set, the one end is the flange end (2) that is used to connect wind wheel, wherein one section is the main bearing construction section (1) that cooperates assembling with main bearing, it is characterized in that: described main bearing construction section (1) forms tapering by shrinking gradually away from a side of flange end near a side direction of flange end.
2. the main shaft of wind power generating set according to claim 1, it is characterized in that: the tapering of described main bearing construction section (1) is 1: 30.
3. the main shaft of wind power generating set according to claim 1 and 2, it is characterized in that: it also has one section screw thread (3), and described screw thread is positioned at the side of main bearing construction section (1) away from flange end, and the position is corresponding with main bearing construction section (1).
4. the main shaft of wind power generating set according to claim 3 is characterized in that: the flange end (2) of one end for extending radially outwardly and form along it, the joint of this flange end (2) and the big end of described main bearing construction section is with circular arc (4) transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202975130U CN201730950U (en) | 2010-08-19 | 2010-08-19 | Main shaft of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202975130U CN201730950U (en) | 2010-08-19 | 2010-08-19 | Main shaft of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201730950U true CN201730950U (en) | 2011-02-02 |
Family
ID=43522106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202975130U Expired - Fee Related CN201730950U (en) | 2010-08-19 | 2010-08-19 | Main shaft of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201730950U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387060A (en) * | 2015-09-29 | 2016-03-09 | 江苏金源锻造股份有限公司 | Large shaft with flange and machining method of large shaft |
| CN106438660A (en) * | 2015-08-05 | 2017-02-22 | 江苏金源锻造股份有限公司 | Large flanged shaft for low-air-speed wind generating set and processing method of large flanged shaft |
-
2010
- 2010-08-19 CN CN2010202975130U patent/CN201730950U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438660A (en) * | 2015-08-05 | 2017-02-22 | 江苏金源锻造股份有限公司 | Large flanged shaft for low-air-speed wind generating set and processing method of large flanged shaft |
| CN105387060A (en) * | 2015-09-29 | 2016-03-09 | 江苏金源锻造股份有限公司 | Large shaft with flange and machining method of large shaft |
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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: 20110202 Termination date: 20140819 |
|
| EXPY | Termination of patent right or utility model |