CN217841906U - Main machine of wind generating set - Google Patents
Main machine of wind generating set Download PDFInfo
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- CN217841906U CN217841906U CN202221454126.2U CN202221454126U CN217841906U CN 217841906 U CN217841906 U CN 217841906U CN 202221454126 U CN202221454126 U CN 202221454126U CN 217841906 U CN217841906 U CN 217841906U
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- main bearing
- end plate
- opening
- mounting portion
- mounting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model provides a wind generating set host computer, include: a frame body having a main bearing mounting recess on one side thereof, the mounting recess having an opening; the main bearing is positioned in the main bearing mounting concave part and sequentially provided with a bearing body, a first mounting part and a second mounting part in the radial outward direction; the sealing end plate covers and contacts a circle of the rack body outside the opening and positions of the first mounting part and the second mounting part exposed to the opening, and the sealing end plate is provided with a second through hole; the sealing cover plate covers and contacts the connecting position of the sealing end plate and the bearing body, and is provided with a third through hole; and a fixing bolt for fixing the main bearing together with the seal end plate and the seal cover plate in the recess of the frame body. The moment value of the main bearing can be conveniently and periodically checked, the connection reliability of the frame and the main bearing is ensured, and the service life of the main bearing is prolonged.
Description
Technical Field
The utility model relates to a wind power generation field, concretely relates to wind generating set host computer.
Background
With the development of wind power generation technology, the performance requirements on wind generating sets are higher and higher. The main frame is a key component of a large-scale wind generating set, and can absorb the vibration action of a transmission system and transmit other loads except torque from the impeller to a tower barrel through a yaw bearing. Wherein, the main bearing that is located the motor train bears all impact load that the impeller transmitted. The connection of the outer ring region of the main bearing to the main frame is particularly critical, since the main bearing is mounted on the main frame by connecting the outer ring region of the main bearing to the main frame.
The main bearing of current wind generating sets is fixed to the main frame by a plurality of bolts, but considering the sealing problem, usually hide the bolt head of the bolt and the main bearing inside (i.e. inside the sealing cover plate). The structure is not beneficial to the moment inspection of the bolt, the thickness of the sealing end plate is small, the rigidity of the sealing end plate is poor, the sealing end plate is easy to deform under the action of load, and the sealing effect is seriously influenced.
Therefore, a wind turbine generator system main unit which can facilitate the inspection of the bolts and avoid the deformation is needed.
Disclosure of Invention
The embodiment of the utility model provides a wind generating set host computer, include: a housing body having a main bearing mounting recess at one side, the mounting recess having an opening toward the one side; a main bearing located in the main bearing mounting recess, the main bearing having a bearing body, a first mounting portion, and a second mounting portion in this order in a radially outward direction thereof, the second mounting portion being provided with a first through hole for fixing the main bearing to the housing body, the bearing body, the first mounting portion, and the second mounting portion decreasing in height in this order in an axial direction of the main bearing toward the opening; the sealing end plate covers and contacts a circle of the rack body outside the opening and positions of the first mounting part and the second mounting part exposed to the opening, and is provided with a second through hole; a seal cover plate covering and contacting a region of connection of the seal end plate and the bearing body, the seal cover plate being provided with a third through hole; and a fixing bolt which penetrates the third through hole, the second through hole and the first through hole in sequence, is inserted into the frame body, and fixes the main bearing, the seal end plate and the seal cover plate in the main bearing mounting recess of the frame body.
The fixing bolts sequentially penetrate through the third through hole, the second through hole and the first through hole and are inserted into the rack body, so that a plurality of parts are assembled at one time, the assembling process is saved, the number of bolts for fixing the main bearing is reduced, and the fixing strength is ensured;
compare in prior art with the head of bolt by sealed apron cover, expose its moment value of periodic inspection can be convenient for at the outside bolt head of sealed end plate, guarantee the reliability that frame and main bearing are connected, increase the main bearing life-span.
In one possible implementation, the sealing end plate is form-fitted to the first mounting portion and the second mounting portion at positions exposed to the opening.
Through the setting, with sealed end plate with first installation department with the space between original sealed end plate and the base bearing can be filled in the shape fit of second installation department to increased sealed end plate thickness, promoted overall structure's rigidity, thereby improved the assembly stability of base bearing.
In one possible implementation, the seal end plate is flush with the height of the bearing body in an axial direction of the main bearing towards the opening.
Through the arrangement, the thickness of the sealing end plate is increased, the rigidity of the structure is improved, conditions are created for installation of the sealing cover plate, assembly can be achieved only by attaching the sealing cover plate to a flush plane, and the processing difficulty and cost of the sealing cover plate are reduced.
In one possible implementation, in an axial direction of the main bearing toward the opening, a circumference of the housing body outside the opening is flush with a height of the second mounting portion.
Through the arrangement, the size (namely the thickness) of one circle of the opening outer ring of the rack body is reduced, so that the integral quality of the rack body is reduced, and the casting cost is saved;
the size of the periphery of the outer ring of the opening of the frame body is reduced, and a space is reserved for the sealing end plate, so that the thickness of the sealing end part can be increased, the rigidity of the structure is improved, and the service life of the sealing end plate is prolonged;
the flush structure can provide conditions for the installation of the sealing end plate, and only the sealing end plate is required to be covered on the flush surface, so that the processing difficulty of the sealing end plate is reduced, and the assembly effect is improved.
In one possible implementation, the thickness of the sealing end plate is greater than the thickness of the sealing cover plate.
Through the arrangement, the thickness of the sealing end plate is increased, and the rigidity of the structure is improved.
In one possible implementation, a sealing ring is arranged between the sealing end plate and the sealing cover plate.
Through the arrangement, the sealing effect is improved, and the leakage of the lubricating oil of the main bearing is avoided.
In one possible embodiment, the main bearing is form-fit to the mounting recess on the side facing into the mounting recess.
Through the setting, the assembly effect is improved, and the reliability of connection of the main bearing and the frame main body is ensured.
In one possible implementation, the cross-sections of the bearing body, the first mounting portion and the second mounting portion decrease in a step-like manner in the axial direction of the main bearing toward the opening.
In one possible implementation, the sealing end plate is in form fit with a circumference outside the opening, the first mounting portion and the second mounting portion.
Through the arrangement, the assembling effect is improved, and the reliability of connection of the main bearing and the frame main body is guaranteed.
In one possible embodiment, the sealing cover plate is form-fit to the sealing end plate.
Through the setting, the assembly effect is improved, and the reliability of connection of the main bearing and the frame main body is ensured.
Drawings
The various features and the connections between the various features of the present application are further described below with reference to the drawings. The figures are exemplary, some features are not shown to scale, and some of the figures may omit features that are conventional in the art to which the application relates and are not essential to the application, or show additional features that are not essential to the application, and the combination of features shown in the figures is not intended to limit the application. In addition, the same reference numerals are used throughout the specification to designate the same components. The specific drawings are illustrated as follows:
FIG. 1 is a side view of a wind turbine generator system host provided by an embodiment of the present application;
fig. 2 is a partially enlarged view of fig. 1, showing a connection relationship between a main frame of the main machine of the motor group and the main bearing.
Fig. 3 is a schematic diagram of the connection relationship between the main frame and the main bearing of the main machine of the motor group host machine in the prior art.
Detailed Description
Technical solutions according to embodiments of the present application will be described below with reference to the drawings in the embodiments. Before describing the details of the technical solution, the terms used in the present application will be briefly described.
The terms first, second, third and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, but may be used to advantage if so permitted and to effect in other sequences than those illustrated or otherwise described herein.
The term "comprising" as used in the specification and claims should not be construed as being limited to the contents listed thereafter; it does not exclude other elements or steps. It is thus to be interpreted as specifying the presence of the stated features, integers, steps or components as referred to, but does not preclude the presence or addition of one or more other features, integers, steps or components, or groups thereof. Thus, the expression "an apparatus comprising the devices a and B" should not be limited to an apparatus consisting of only the components a and B.
Fig. 3 is a schematic diagram of the connection relationship between the main frame and the main bearing of the main machine of the motor group host machine in the prior art. As shown in fig. 3, the related art electric machine set main body includes a frame body 01, a main bearing 02, a seal end plate 03, a seal cover plate 04, and a fixing bolt 05, wherein the frame body 01 has a main bearing mounting recess on one side, and the mounting recess has an opening facing the one side; the main bearing 02 is positioned in the main bearing mounting concave part, the main bearing sequentially comprises a bearing body 021, a first mounting part 022 and a second mounting part 023 in the radial outward direction of the main bearing, the second mounting part 023 is provided with a first through hole used for fixing the main bearing 02 to the frame body 01, the heights of the bearing body, the first mounting part and the second mounting part are sequentially reduced in the axial direction of the main bearing towards the opening, a fixing bolt 05 penetrates through the first through hole and is inserted into the frame body 01, and the main bearing 02 is fixed in the concave part of the frame body 01; sealed end plate 03 covers frame body 01 be located the outer a week of opening the bolt and first installation department 022, and with frame body 01 be located the outer a week of opening and first installation department 022 contact the orientation of base bearing on the open-ended axial direction, frame body 01 a week highly be higher than the bolt head and with first installation department 022 flushes, sealed apron 04 contact sealed end plate 03 with bearing body 021, sealed end plate 03 pass through the bolt (not drawn) and fix in the outer a week of frame body 01 opening, and sealed apron passes through the bolt (not drawn) and fixes on sealed end plate 03.
This prior art arrangement conceals the head of the bolt and the main bearing internally (i.e. inside the seal cover plate) and is not conducive to torque checking of the bolt. Moreover, because the bolts need to be hidden inside the sealing end plate, the height of the opening circle of the frame body 01 needs to be higher than that of the bolt head, the mass of the frame body 01 is increased, and the thickness of the sealing end plate is reduced, so that the rigidity of the sealing end plate is reduced, the sealing end plate is easy to deform under the action of load, and the sealing effect is seriously influenced.
In view of this, an embodiment of the present application provides a wind generating set host, as shown in fig. 1 and fig. 2, the wind generating set host includes: the main bearing mounting structure comprises a frame body 1, a main bearing 2, a sealing end plate 3, a sealing cover plate 4 and a fixing bolt 5, wherein the frame body 1 is provided with a main bearing mounting concave part 11 on one side, and the mounting concave part is provided with an opening 12 facing to one side; the main bearing 2 is located in the main bearing mounting recess 11, an outer periphery (also referred to as an outer ring) of the main bearing 2 is fitted (may be in contact with or may be in shape fit with) a sidewall of the main bearing mounting recess 11, the main bearing 2 has a bearing body 21, a first mounting portion 22, and a second mounting portion 23 in this order in a radially outward direction thereof, the second mounting portion 23 is provided with a first through hole for fixing the main bearing 2 to the housing body, and heights of the bearing body 21, the first mounting portion 22, and the second mounting portion 23 are reduced in this order in an axial direction T of the main bearing 2 toward the opening 12; the sealing end plate 3 covers and contacts a circle 13 of the frame body 1 outside the opening 12 and positions of the first mounting part 22 and the second mounting part 23 exposed to the opening 12, and the sealing end plate 3 is provided with a second through hole; the sealing cover plate 4 covers and contacts the connecting area of the sealing end plate 3 and the bearing body 21, and the sealing cover plate 4 is provided with a third through hole; the fixing bolt 5 sequentially penetrates through the third through hole, the second through hole and the first through hole and is inserted into the frame body 1, so that the main bearing 2, the seal end plate 3 and the seal cover plate 4 are fixed in the main bearing mounting concave part of the frame body 1.
The fixing bolts 5 sequentially penetrate through the third through hole, the second through hole and the first through hole and are inserted into the rack body 1, so that a plurality of parts are assembled at one time, the assembling process is saved, the number of bolts for fixing the main bearing is reduced, and the fixing strength is ensured; compare in prior art with the fixed mode of 5 heads of fixing bolt bury in the sealed end plate, expose and to be convenient for regularly inspect its moment value at the outside bolt head of sealed end plate 3, guarantee the reliability that frame and main bearing are connected, increase the main bearing life-span.
In some embodiments, as shown in fig. 2, the sealing end plate 3 is form-fit to the first mounting portion 22 and the second mounting portion 23 at locations exposed to the opening 12. With sealed end plate with first installation department with the space between original sealed end plate and the main bearing can be filled to the shape fit of second installation department to increased sealed end plate thickness, promoted overall structure's rigidity, thereby improved the assembly stability of main bearing.
In some embodiments, as shown in fig. 2, the seal end plate is flush with the height of the bearing body in an axial direction of the main bearing towards the opening. The thickness of the sealing end plate can be increased, the rigidity of the structure is improved, conditions are created for installation of the sealing cover plate, assembly can be achieved only by attaching the sealing cover plate to a flush plane, and the machining difficulty and cost of the sealing cover plate are reduced.
In some embodiments, as shown in fig. 2, a circumference of the housing body outside the opening is flush with a height of the second mounting portion in an axial direction of the main bearing toward the opening. The size (namely the thickness) of one circle of the opening outer ring of the frame body is reduced, so that the integral quality of the frame body is reduced, and the casting cost is saved; the size of one circle of the outer ring of the opening of the frame body is reduced, and a space is reserved for the sealing end plate, so that the thickness of the sealing end part can be increased, the rigidity of the structure is improved, and the service life of the sealing end plate is prolonged; the structure that flushes can provide the condition for the installation of sealed end plate, only need with sealed end plate cover in the surface that flushes can, reduce the processing degree of difficulty of sealed end plate, improve the assembly effect.
In some embodiments, as shown in fig. 2, the sealing end plate has a thickness greater than a thickness of the sealing end plate. The thickness of the sealing end plate is increased, and the rigidity of the structure is improved.
In some embodiments, a sealing ring is disposed between the seal end plate and the seal cover plate. The sealing effect is improved, and the leakage of the lubricating oil of the main bearing is avoided.
In some embodiments, as shown in fig. 2, the main bearing is form-fitted with the mounting recess on a side facing into the mounting recess. The assembling effect is improved, and the reliability of the connection of the main bearing and the frame main body is guaranteed.
In some embodiments, as shown in fig. 2, the cross-section of the bearing body, the first mounting portion and the second mounting portion decreases in a step-like manner in the axial direction of the main bearing toward the opening.
In some embodiments, as shown in fig. 2, the sealing end plate is form-fit with a circumference outside the opening, the first mounting portion and the second mounting portion.
In some embodiments, the seal cover plate is form-fit with the seal end plate, as shown in fig. 2.
Reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment, but may. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments, as would be apparent to one of ordinary skill in the art from this disclosure.
Claims (10)
1. A wind generating set host computer characterized in that includes:
a housing body having a main bearing mounting recess at one side, the mounting recess having an opening toward the one side;
a main bearing located in the main bearing mounting recess, the main bearing having a bearing body, a first mounting portion, and a second mounting portion in this order in a radially outward direction thereof, the second mounting portion being provided with a first through hole for fixing the main bearing to the housing body, the bearing body, the first mounting portion, and the second mounting portion decreasing in height in this order in an axial direction of the main bearing toward the opening;
the sealing end plate covers and contacts one circle of the rack body outside the opening and positions of the first mounting part and the second mounting part exposed to the opening, and the sealing end plate is provided with a second through hole;
a seal cover plate covering and contacting a region of connection of the seal end plate and the bearing body, the seal cover plate being provided with a third through hole; and
and a fixing bolt inserted into the housing body through the third through hole, the second through hole, and the first through hole in this order to fix the main bearing, together with the seal end plate and the seal cover plate, in the main bearing installation recess of the housing body.
2. The wind turbine generator set host of claim 1, wherein the sealing end plate is form-fit to the first and second mounting portions at locations exposed to the opening.
3. The wind turbine generator set host of claim 1, wherein the seal end plate is flush with a height of the bearing body in an axial direction of the main bearing toward the opening.
4. The wind turbine generator system according to claim 1, wherein a circumference of the frame body outside the opening is flush with a height of the second mounting portion in an axial direction of the main bearing toward the opening.
5. The wind generating set host machine of claim 1, wherein the thickness of the sealing end plate is greater than the thickness of the sealing cover plate.
6. The wind generating set host machine of claim 1, wherein a seal ring is disposed between the seal end plate and the seal cover plate.
7. The wind turbine generator system according to claim 1, wherein the main bearing is form-fit with the mounting recess on a side of the main bearing facing into the mounting recess.
8. The wind turbine generator system according to claim 1, wherein the cross section of the bearing body, the first mounting portion and the second mounting portion decreases in a stepwise manner in the axial direction of the main bearing toward the opening.
9. The wind turbine generator set host of claim 1, wherein the sealing end plate is form-fitted to the first mounting portion and the second mounting portion about a circumference outside the opening.
10. The wind turbine generator set host of claim 1, wherein the seal cover plate is form-fit to the seal end plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221454126.2U CN217841906U (en) | 2022-06-09 | 2022-06-09 | Main machine of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221454126.2U CN217841906U (en) | 2022-06-09 | 2022-06-09 | Main machine of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217841906U true CN217841906U (en) | 2022-11-18 |
Family
ID=84024166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221454126.2U Active CN217841906U (en) | 2022-06-09 | 2022-06-09 | Main machine of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217841906U (en) |
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2022
- 2022-06-09 CN CN202221454126.2U patent/CN217841906U/en active Active
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