CN210693689U - Large-scale generator rotor fan blade - Google Patents
Large-scale generator rotor fan blade Download PDFInfo
- Publication number
- CN210693689U CN210693689U CN201920934769.9U CN201920934769U CN210693689U CN 210693689 U CN210693689 U CN 210693689U CN 201920934769 U CN201920934769 U CN 201920934769U CN 210693689 U CN210693689 U CN 210693689U
- Authority
- CN
- China
- Prior art keywords
- fan blade
- generator rotor
- rotor fan
- fixed
- pedestal
- 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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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 241001075561 Fioria Species 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000010248 power generation Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 9
- 230000009977 dual effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to a combustion engine power generation field specifically discloses a large-scale generator rotor fan leaf, including fan blade portion, with fan blade portion integrated into one piece's pedestal and with the fixed mount pad of pivot, wherein be equipped with the draw-in groove that matches with the pedestal on the mount pad, it is fixed through bolted connection between pedestal and the mount pad. The utility model provides a current large-scale generator rotor fan leaf be difficult to the problem of repeated dismouting.
Description
Technical Field
The utility model relates to a gas turbine electricity generation field, concretely relates to generator rotor fan leaf.
Background
Be provided with then a plurality of fan blades among the prior art on the large-scale generator rotor for dispel the heat for large-scale generator, it has the mounting groove of installation fan blade to open in the pivot of large-scale generator usually, these fan blades insert in the mounting groove of pivot and the welding in fixing in large-scale generator's the pivot, damage when the fan blade need wear and tear just more troublesome, need destroy original welding part, be difficult to repeated dismouting, it is inconvenient to use.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a large-scale generator rotor fan leaf to solve the problem that current large-scale generator rotor fan leaf is difficult to the repeated dismouting.
In order to achieve the above object, the utility model discloses a basic scheme provides a large-scale generator rotor fan leaf, including fan blade portion, with fan blade portion integrated into one piece's pedestal and with the fixed mount pad of pivot, wherein be equipped with the draw-in groove that matches with the pedestal on the mount pad, it is fixed through bolted connection between pedestal and the mount pad.
The beneficial effect of this basic scheme lies in:
the utility model discloses a mode that bolted connection is fixed replaces the welded fastening among the prior art, has made things convenient for the installation and dismantlement of fan leaf greatly, adopts the mode that mount pad and pedestal cooperate simultaneously, has avoided carrying out many processing in the pivot, not only has reduced the cost, has guaranteed the structural stability and the intensity of pivot moreover; to sum up, the utility model discloses a structure setting has made things convenient for fan blade's use, dismouting greatly.
Furthermore, the installation seat is in key connection with the rotating shaft. Through the mode of key-type connection, fixed between mount pad and the pivot is realized to convenient and fast, moreover can dismantle and change easy to assemble.
Furthermore, the pressing ring is further included, one end of the pressing ring abuts against the base body, and the other end of the pressing ring is fixed with the mounting seat. Through setting up the clamping ring, with bolted connection cooperation, realize the dual fixed to pedestal and fan blade portion, connect more reliably stably.
Furthermore, the pressing ring and the mounting seat are fixed through a set screw. The fixing between the compression ring and the mounting seat is conveniently, quickly and reliably realized.
Furthermore, one end of the pressing ring is provided with a protrusion, and the seat body is correspondingly provided with a groove. Through the cooperation between arch and the recess, can strengthen cooperation precision and joint strength between clamping ring and the pedestal for the fixed more firm of fan leaf.
Further, the root of recess is sunken in and is formed the half slot, bellied head end outwards extends the semicircle sand grip that forms and match with the half slot. In the in-service use, singly rely on recess and bellied cooperation, lead to because of machining precision scheduling problem easily, the clearance between recess and the arch is inhomogeneous, just probably take place the phenomenon of fan leaf drunkenness when large-scale generator during operation, and the cooperation through semicircle sand grip and half slot, make the installation accuracy of clamping ring higher, the area of contact between clamping ring and the pedestal has been increased simultaneously, in addition the recess, cooperation between the arch, dual fixed effect has been formed, the stability in use of fan leaf has been improved greatly, and the reliability.
Further, the base body and the mounting base are fixedly connected through a hinged hole bolt. Compared with a common bolt, the hinge hole bolt has higher matching precision and can bear transverse load, so that the connection between the base body and the mounting base is more stable and reliable.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of a large generator rotor fan blade according to the present invention;
FIG. 2 is a schematic view of the fan blade of FIG. 1;
fig. 3 is a sectional view taken along line a-a in fig. 2.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the fan comprises a rotating shaft 1, a mounting seat 2, a pressing ring 3, a fan blade part 4, a groove 5 and a seat body 6.
As shown in fig. 1 and 2, a large generator rotor fan blade includes a fan blade portion 4, a base 6 integrally formed with the fan blade portion 4, and a mounting base 2 fixed to a rotating shaft 1, wherein a slot matched with the base 6 is provided on the mounting base 2, the base 6 is fixed to the mounting base 2 by a bolt, specifically, the base 6 is fixed to the mounting base 2 by a hinge hole bolt, because the hinge hole bolt has higher fitting accuracy than a common bolt and can bear a load from a transverse direction, the connection between the base 6 and the mounting base 2 is more stable and reliable.
Meanwhile, the installation seat 2 and the rotating shaft 1 are in key connection, and the installation seat 2 and the rotating shaft 1 are fixed conveniently and quickly in a key connection mode, and can be detached and replaced conveniently.
Besides, the fan blade of this embodiment still includes clamping ring 3, and 3 one end of clamping ring offsets with pedestal 6, and is fixed between 3 other ends of clamping ring and mount pad 2. Through setting up clamping ring 3, with the bolted connection cooperation, realize the dual fixed to pedestal 6 and fan blade portion 4, connect more reliably stably, it is concrete, fixed through holding screw between clamping ring 3 and the mount pad 2. The compression ring 3 and the mounting seat 2 are fixed conveniently, quickly and reliably; one end of the compression ring 3 is provided with a bulge, and the seat body 6 is correspondingly provided with a groove 5. Through the cooperation between arch and the recess 5, can strengthen cooperation precision and joint strength between clamping ring 3 and the pedestal 6 for the fixed more firm of fan leaf.
As shown in fig. 2 and 3, the root of the groove 5 is recessed to form a semicircular groove, and the head end of the protrusion extends outwards to form a semicircular convex strip matched with the semicircular groove; specifically, the diameter of half slot sets up to 1.5mm, half slot and recess 5 linking department pass through the chamfer transition simultaneously, avoid stress concentration, in the in-service use, singly rely on recess 5 and bellied cooperation, lead to because of machining precision scheduling problem easily, the clearance between recess 5 and the arch is inhomogeneous, the phenomenon of fan leaf drunkenness just probably takes place when large-scale generator during operation, and the cooperation through semicircle sand grip and half slot, make the installation accuracy of clamping ring 3 higher, the area of contact between clamping ring 3 and the pedestal 6 has been increased simultaneously, in addition recess 5, cooperation between the arch, double fixed effect has been formed, the stability in use of fan leaf has been improved greatly, the reliability.
The mode of bolt connection and fixation replaces the welding fixation in the prior art, thereby greatly facilitating the installation and the disassembly of the fan blade, and meanwhile, the mode of matching the installation seat 2 with the seat body 6 is adopted, thereby avoiding the processing of a plurality of positions on the rotating shaft 1, not only reducing the cost, but also ensuring the structural stability and the strength of the rotating shaft 1; to sum up, the utility model discloses a structure setting has made things convenient for fan blade's use, dismouting greatly.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. The utility model provides a large-scale generator rotor fan leaf which characterized in that: the fan blade fixing device comprises a fan blade part, a base body and a mounting base, wherein the base body and the fan blade part are integrally formed, the mounting base is fixed with a rotating shaft, a clamping groove matched with the base body is formed in the mounting base, and the base body and the mounting base are fixedly connected through bolts.
2. The large generator rotor fan blade of claim 1, wherein: the mounting seat is connected with the rotating shaft through a key.
3. The large generator rotor fan blade of claim 2, wherein: still include the clamping ring, clamping ring one end offsets with the pedestal, and is fixed between clamping ring other end and the mount pad.
4. A large generator rotor fan blade according to claim 3, characterized in that: the compression ring and the mounting seat are fixed through a set screw.
5. Large generator rotor fan blade according to claim 3 or 4, characterized in that: one end of the pressure ring is provided with a bulge, and the seat body is correspondingly provided with a groove.
6. The large generator rotor fan blade of claim 5, wherein: the root of recess is sunken in and is formed the half slot, bellied head end outwards extends the semicircle sand grip that forms and match with the half slot.
7. A large generator rotor fan blade according to any of claims 1-4 or 6, characterized in that: the base body is fixedly connected with the mounting base through a hinged hole bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920934769.9U CN210693689U (en) | 2019-06-20 | 2019-06-20 | Large-scale generator rotor fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920934769.9U CN210693689U (en) | 2019-06-20 | 2019-06-20 | Large-scale generator rotor fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210693689U true CN210693689U (en) | 2020-06-05 |
Family
ID=70887044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920934769.9U Expired - Fee Related CN210693689U (en) | 2019-06-20 | 2019-06-20 | Large-scale generator rotor fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210693689U (en) |
-
2019
- 2019-06-20 CN CN201920934769.9U patent/CN210693689U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200605 |