CN218407693U - Casting bearing pedestal for large megawatt wind generating set - Google Patents
Casting bearing pedestal for large megawatt wind generating set Download PDFInfo
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- CN218407693U CN218407693U CN202221786786.0U CN202221786786U CN218407693U CN 218407693 U CN218407693 U CN 218407693U CN 202221786786 U CN202221786786 U CN 202221786786U CN 218407693 U CN218407693 U CN 218407693U
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- outer peripheral
- stabilizer blade
- megawatt wind
- turbine generator
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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 discloses a casting bearing frame for big megawatt wind generating set, including the first section that is located the front side, be located the second section of rear side and connect the middle changeover portion between first section and second section, the inside of first section is formed with front bearing installation position, the inside of second section is formed with rear bearing installation position, the outer peripheral face of first section is equipped with preceding installation stabilizer blade, and the outer peripheral face of second section is equipped with back installation stabilizer blade, just the rear end face of back installation stabilizer blade backward extension and outstanding second section, the radial equipartition of the upper portion outer peripheral face of first section has a plurality of first strengthening ribs, first strengthening rib and preceding installation stabilizer blade adopt the integrated design, be formed with the flange on the preceding terminal surface of first section, be formed with the through-hole that supplies wind generating set's wind wheel locking device to install on the flange. The utility model discloses a casting bearing frame overall structure is simple, rigidity is strong, has realized lightweight designing requirement, also can increase the maintenance space of bearing frame simultaneously.
Description
Technical Field
The utility model belongs to the technical field of big megawatt wind generating set's technique and specifically relates to indicate a casting bearing frame for big megawatt wind generating set.
Background
A bearing seat of a main shaft of the wind generating set is a key component influencing the transmission structure and the whole weight of the wind generating set. For a wind generating set with more than 10MW, two single-row conical bearings are arranged back to back in the main shaft bearing, and an integral bearing seat is needed to ensure the assembly precision of the two main shaft bearings. The load of the small megawatt unit is small, and the structure of the bearing seat is relatively simple. The load of big megawatt unit is big, and traditional bearing frame need adopt great wall thickness for guaranteeing rigidity, and the space between bearing frame and the main shaft is little, inconvenient maintenance of base bearing sealing washer, consequently, need design a bearing frame of lightweight design, under the prerequisite that satisfies the security performance, improve intensity rigidity, satisfy installation maintenance space requirement simultaneously.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides a casting bearing frame for big megawatt wind generating set, and overall structure is simple, rigidity is strong, satisfies under the prerequisite of security performance, has realized lightweight designing requirement, also can increase the maintenance space of bearing frame simultaneously.
In order to achieve the above purpose, the utility model provides a technical scheme does: the utility model provides a casting bearing frame for big megawatt wind generating set, is including the first section that is located the front side, be located the second section of rear side and connect the middle changeover portion between first section and second section, the inside of first section is formed with preceding bearing installation position, the inside of second section is formed with back bearing installation position, the outer peripheral face of first section is equipped with preceding installation stabilizer blade, and the outer peripheral face of second section is equipped with back installation stabilizer blade, just back installation stabilizer blade extends backward and the rear end face of outstanding second section, the upper portion outer peripheral face of first section upwards the equipartition have a plurality of first strengthening ribs, first strengthening rib and preceding installation stabilizer blade adopt the integrated design, be formed with the flange on the preceding terminal surface of first section, be formed with the through-hole that supplies wind generating set's wind wheel locking device to install on the flange.
Furthermore, a plurality of maintenance process holes are formed in the middle transition section.
Furthermore, two sides of the inner peripheral surface of the middle transition section are respectively provided with an L-shaped concave platform for personnel to maintain the main shaft seal.
Furthermore, a plurality of second reinforcing ribs are uniformly distributed on the inner circumferential surface of the intermediate transition section in the radial direction.
Furthermore, a circle of third reinforcing ribs extending along the circumferential direction are arranged on the outer circumferential surface of the lower portion of the first section.
Furthermore, the flange is provided with a fabrication hole for installing and replacing the bolt.
Further, the front mounting support leg is connected with the outer peripheral surface of the first section through a smoothly-transiting curved surface.
Furthermore, a circle of fourth reinforcing ribs extending along the circumferential direction is arranged on the outer circumferential surface of the second section, the fourth reinforcing ribs are positioned on the central line of the rear mounting support leg, and the rear mounting support leg and the connecting bolt of the rack are symmetrically arranged on two sides of the fourth reinforcing ribs.
Compared with the prior art, the utility model, have following advantage and beneficial effect:
the utility model discloses a bearing frame passes through the lightweight design, under the prerequisite that satisfies the security performance, reduces weight, improves rigidity intensity, makes the structure more reasonable, also can increase the maintenance space of bearing frame simultaneously, has very strong engineering practicality, and the suitability is wider.
Drawings
Fig. 1 is a front view of the cast bearing seat of the present invention.
Fig. 2 isbase:Sub>A sectional view taken along the linebase:Sub>A-base:Sub>A in fig. 1.
Fig. 3 is a sectional view taken along line B-B in fig. 1.
Fig. 4 is a bottom view of the cast bearing seat of the present invention.
Fig. 5 is a side view of the cast bearing seat of the present invention.
Fig. 6 is a cross-sectional view of the cast bearing seat of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific embodiments, but the usage of the present invention is not limited thereto.
As shown in fig. 1 to fig. 6, the cast bearing seat for a large megawatt wind generating set according to the embodiment includes a first section 101 located at the front side, a second section 103 located at the rear side, and an intermediate transition section 102 connected between the first section 101 and the second section 103, a front bearing mounting location 1011 is formed inside the first section 101, a rear bearing mounting location 1031 is formed inside the second section 103, and the main shaft bearings of two single-row conical bearings are arranged back to back in the front bearing mounting location 1011 and the rear bearing mounting location 1031 of the bearing seat; the outer peripheral surface of the first section 101 is provided with a front mounting support 1012, the outer peripheral surface of the second section 103 is provided with a rear mounting support 1032, and the front mounting support 1012 and the rear mounting support 1032 are connected with a base of the wind generating set through bolts and transmit wind wheel load.
A plurality of first ribs 1013 are uniformly distributed on the upper outer circumferential surface of the first section 101 in the radial direction, a circle of third ribs 1014 extending along the circumferential direction is arranged on the lower outer circumferential surface of the first section, and the first ribs 1013 and the front mounting foot 1012 are integrally designed; the rear mounting support leg 1032 extends backwards and protrudes out of the rear end face of the second section 103, a circle of fourth reinforcing rib 1033 extending along the circumferential direction is arranged on the outer circumferential face of the second section 103, the fourth reinforcing rib 1033 is located on the central line of the rear mounting support leg 1032, the rear mounting support leg 1032 and a connecting bolt of a rack are symmetrically arranged on two sides of the fourth reinforcing rib 1033, the rear mounting support leg 1032 structure of the embodiment greatly improves the reliability of bolt connection of the bearing seat, and the bearing seat is favorably prevented from deforming and sliding.
A flange 104 is formed on the front end face of the first section 101, through holes 1041 for installing a wind wheel locking device of a wind generating set are formed in the flange 104, the number of the wind wheel locking devices and the number of the through holes 1041 are determined according to wind wheel locking bearing requirements, a plurality of long circular process holes 1042 are further formed in the flange 104 and used for installing and replacing connecting bolts of a main shaft and a hub, and the flange 104 structure of the embodiment can reduce the distance between the front end face of a bearing seat and the flange 104 of the main shaft, so that bearing load reduction and light weight design are facilitated.
A plurality of maintenance holes 1021 are provided in the intermediate transition section 102. L-shaped concave platforms 1022 are formed on two sides of the inner circumferential surface of the middle transition section 102 respectively, the rigidity of the bearing seat can be obviously increased, the L-shaped concave platforms 1022 are arranged between the front bearing and the rear bearing, the centering precision of the front bearing and the rear bearing is guaranteed, meanwhile, a space for personnel to enter the bearing seat to maintain the main shaft seal is reserved, namely, the personnel can squat and sit in the space after entering the bearing seat from the maintenance process hole 1021, and the main bearing end face seal is convenient to check and replace. And a plurality of second reinforcing ribs 1023 are uniformly distributed on the inner circumferential surface of the middle transition section 102 in the radial direction, so that the rigidity of the bearing seat is further enhanced.
The outer peripheral surfaces of the front mounting support leg 1012 and the first section 101 are connected through a smooth transition curved surface, so that stress concentration can be effectively avoided, meanwhile, the rigidity of the bearing seat is obviously increased, and lightweight design is facilitated.
The utility model discloses a carry out the lightweight design to the bearing frame, under the prerequisite that satisfies the security performance, reduce weight improves rigidity intensity, makes the structure more reasonable, also can increase the maintenance space of bearing frame simultaneously, has very strong engineering practicality, and the suitability is wider.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that all the changes made according to the shape and principle of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a casting bearing frame for big megawatt wind generating set which characterized in that: including the first section that is located the front side, be located the second section of rear side and connect the middle changeover portion between first section and second section, the inside of first section is formed with front bearing installation position, the inside of second section is formed with rear bearing installation position, the outer peripheral face of first section is equipped with preceding installation stabilizer blade, and the outer peripheral face of second section is equipped with back installation stabilizer blade, just back installation stabilizer blade extends backward and the rear end face of outstanding second section, the radial equipartition in the upper portion outer peripheral face of first section has a plurality of first strengthening ribs, first strengthening rib and preceding installation stabilizer blade adopt the integrated design, be formed with the flange on the preceding terminal surface of first section, be formed with the through-hole that supplies wind generating set's wind wheel locking device to install on the flange.
2. The cast bearing housing for a large megawatt wind turbine generator set in accordance with claim 1, wherein: and a plurality of maintenance process holes are formed in the middle transition section.
3. The cast bearing housing for a large megawatt wind turbine generator set in accordance with claim 1, wherein: and L-shaped concave platforms for personnel to maintain the main shaft seal are respectively formed on two sides of the inner peripheral surface of the middle transition section.
4. The cast bearing housing for a large megawatt wind turbine generator set in accordance with claim 1, wherein: and a plurality of second reinforcing ribs are uniformly distributed on the inner circumferential surface of the middle transition section in the radial direction.
5. The cast bearing housing for a large megawatt wind turbine generator set of claim 1 wherein: and the outer peripheral surface of the lower part of the first section is provided with a circle of third reinforcing ribs extending along the circumferential direction.
6. The cast bearing housing for a large megawatt wind turbine generator set in accordance with claim 1, wherein: the flange is provided with a fabrication hole for installing and replacing the bolt.
7. The cast bearing housing for a large megawatt wind turbine generator set of claim 1 wherein: the front mounting support leg is connected with the outer peripheral surface of the first section through a smoothly-transiting curved surface.
8. The cast bearing housing for a large megawatt wind turbine generator set of claim 1 wherein: and a circle of fourth reinforcing ribs extending along the circumferential direction are arranged on the outer circumferential surface of the second section, the fourth reinforcing ribs are positioned on the central line of the rear mounting support leg, and the rear mounting support leg and the connecting bolt of the rack are symmetrically arranged on two sides of the fourth reinforcing ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221786786.0U CN218407693U (en) | 2022-07-12 | 2022-07-12 | Casting bearing pedestal for large megawatt wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221786786.0U CN218407693U (en) | 2022-07-12 | 2022-07-12 | Casting bearing pedestal for large megawatt wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218407693U true CN218407693U (en) | 2023-01-31 |
Family
ID=85012215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221786786.0U Active CN218407693U (en) | 2022-07-12 | 2022-07-12 | Casting bearing pedestal for large megawatt wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218407693U (en) |
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2022
- 2022-07-12 CN CN202221786786.0U patent/CN218407693U/en active Active
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