CN110657070A - Fan impeller assembling device and method - Google Patents
Fan impeller assembling device and method Download PDFInfo
- Publication number
- CN110657070A CN110657070A CN201911000394.XA CN201911000394A CN110657070A CN 110657070 A CN110657070 A CN 110657070A CN 201911000394 A CN201911000394 A CN 201911000394A CN 110657070 A CN110657070 A CN 110657070A
- Authority
- CN
- China
- Prior art keywords
- fan impeller
- blade
- fan
- base
- hoisting
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
-
- 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
Abstract
The invention discloses a fan impeller assembling device, which comprises a cylindrical base and a bracket connected with the base; the base is equipped with the screw that is used for fixed fan wheel's wheel hub, and the support includes that two are the landing leg that the chevron shape set up, and the intersection of two landing legs is located to the base and the plane at two landing legs of perpendicular place. The invention also discloses a fan impeller assembling method applying the fan impeller assembling device, which comprises the following steps: fixing the fan impeller assembly device on the ground; mounting a hub of a fan impeller on the base; hoisting a first blade along the extending direction of one of the supporting legs; hoisting a second blade along the extending direction of the other supporting leg; and hoisting the third blade to complete the assembly of the fan impeller. The fan impeller assembling device and method improve the convenience of fan impeller assembling, solve the problem of insufficient assembling area, shorten the construction engineering quantity and reduce the construction cost.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a fan impeller assembling device. The invention also relates to a fan impeller assembling method using the fan impeller assembling device.
Background
With the continuous deepening of the development of new energy resources of China, the proportion of the generated energy of wind power generation is continuously improved. However, with the rapid development of onshore wind power installation scale, the existing wind power resources are more and more deficient, the problems of effective land and ownership of a machine site are more and more increased, and the installation of the fan impeller on mountainous regions and other terrains becomes a technical problem to be solved by technicians in the field. The conventional hoisting method at present needs to excavate a 40m 50m hoisting platform at the mountain head, needs the platform to be flat and have no gully, selects a proper position on the platform, pours a pile through drilling, pre-embeds bases of reinforced concrete and anchor bolts, then installs fan blades and hubs on the platform, configures a main crane with more than 550t and an auxiliary crane with more than 130t to complete installation of the whole fan, and needs to process the concrete pre-embedded pile and restore the landform of the platform after installation. The existing blade and hub assembling mode has the problems of large construction work amount, high construction difficulty, incapability of recycling concrete embedded piles and the like.
Therefore, the problem that how to solve the problems of insufficient area of a hoisting field and difficult hoisting construction of the fan impeller becomes the field
Disclosure of Invention
The invention aims to provide a fan impeller assembling device, which improves the convenience of fan impeller assembly, solves the problem of insufficient hoisting area, shortens the construction work amount and reduces the construction cost. The invention also aims to provide a fan impeller assembling method applying the fan impeller assembling device.
In order to achieve the aim, the invention provides a fan impeller assembling device which comprises a cylindrical base and a bracket connected with the base; the base is equipped with the screw that is used for fixed fan wheel's wheel hub, the support includes that two are the landing leg that the chevron shape set up, two are located to the base the intersection of landing leg and perpendicular two the plane at landing leg place.
Optionally, two of the legs are arranged at an included angle of 120 °.
Optionally, a first base plate is arranged at the bottom end of the base, and a second base plate is arranged at one end, far away from the base, of the supporting leg; the first base plate and/or the second base plate are provided with foundation bolt holes.
Optionally, the support leg is a steel telescopic support.
Optionally, two of said legs are hinged.
The invention also provides a fan impeller assembling method, and the fan impeller assembling device comprises the following steps:
fixing the fan impeller assembly device on the ground;
mounting a hub of a fan impeller on the base;
hoisting a first blade along the extending direction of one of the supporting legs;
hoisting a second blade along the extending direction of the other supporting leg;
and hoisting the third blade to complete the assembly of the fan impeller.
Optionally, fixing the fan impeller assembly device on the ground specifically includes:
determining an assembly position of the fan wheel;
adjusting the length of the supporting leg according to the assembling position and the length of the blade of the fan impeller, and determining the fixing positions of the first base plate and the second base plate according to the assembling position and the length of the supporting leg;
and aligning the first base plate and the second base plate to the fixed positions of the first base plate and the second base plate respectively, and fixing the first base plate and the second base plate through foundation bolt holes.
Optionally, the step of hoisting the first blade along the extending direction of one of the legs comprises:
aligning any two mounting holes of the hub with the extending directions of the two support legs respectively and fixing the hub;
hoisting all the blades and placing all the blades and the mounting holes in a one-to-one correspondence manner;
hoisting the root part of the first blade by adopting a first crane, and hoisting the tail sliding part of the first blade by adopting a second crane;
and moving the first crane and the second crane to horizontally lift the first blade and fix the first blade to the mounting hole along the extending direction of one of the supporting legs.
Optionally, the step of hoisting the third blade to complete the assembly of the fan impeller further includes:
mounting the assembled fan impeller on a fan rotor;
and disassembling the fan impeller assembling device.
Optionally, the mounting the assembled fan impeller to the fan rotor specifically includes:
hooking the tip of the blade by using the first crane;
connecting the blade root of the fan impeller by using the second crane and a rope, and driving the fan impeller to rotate by using the rope while lifting the fan impeller;
and adjusting the position of the fan impeller, and installing a zero scale line at the blade root in alignment with a zero scale line of a variable pitch bearing connecting the fan impeller and the fan rotor.
Compared with the background art, the fan impeller assembling device and method provided by the invention have the advantages that the two support legs arranged in the herringbone mode are used for supporting, the base is arranged at the intersection of the support legs, the base is perpendicular to the plane where the two support legs are located, the two support legs are attached to the ground, the side turning in the assembling process is prevented, and meanwhile, the occupied area is reduced. The base sets up fixed wheel hub's screw, through base and landing leg fixed stay wheel hub, replaces the support of pouring and the pre-buried stake of hoisting platform, need not to pour hoisting platform by a large scale, has reduced the restriction in equipment place, has reduced construction work volume and construction cost. Through being fixed in ground with fan wheel assembly device, install wheel hub in the base, pack into wheel hub along the extending direction of landing leg with first blade and second blade in proper order, prevent that the assembling process from taking place to turn on one's side, install the third blade in wheel hub at last, accomplish fan wheel's equipment, whole process need not to pour concrete hoisting platform and set up the pre-buried stake, has reduced the construction cost of construction volume, and this fan wheel assembly device can reuse.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a working schematic diagram of a fan impeller assembling device provided in an embodiment of the present invention;
fig. 2 is a flowchart of a fan impeller assembling method according to an embodiment of the present invention.
Wherein:
1-base, 2-support leg, 3-first backing plate, 4-second backing plate, 5-hub and 6-blade.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram illustrating an operation of a fan impeller assembling apparatus according to an embodiment of the present invention, and fig. 2 is a flowchart illustrating a fan impeller assembling method according to an embodiment of the present invention, in which the first blade and the second blade are only used to distinguish an assembling sequence of the blades 6.
The fan impeller assembling device provided by the invention comprises a cylindrical base 1 and a bracket for connecting and supporting the base 1. The base 1 is used for fixing the hub 5 of the fan impeller, the hub 5 of the fan impeller is fixed for realizing, screw holes are formed in the base 1, and the hub 5 is fixed on the base 1 through the screw holes matched with the screw holes which are used for being connected with the rotor and the bearing on the hub 5. The support is including being two landing legs 2 that the chevron shape set up that intersect, the plane at two landing legs 2 places of base 1 perpendicular, and two landing legs 2 laminating ground are fixed, avoid taking place to turn on one's side in the assembling process, and the area of equipment has been reduced in setting up of two landing legs 2, have solved the restriction of equipment place, replace the setting of concrete hoisting platform and pre-buried stake through the support of landing leg 2 and base 1 simultaneously, have reduced the construction volume, have reduced construction cost. After the hub 5 is fixed, the blades 6 can be lifted one by one, and the blades 6 are sequentially mounted on the hub 5, so that the fan impeller is assembled.
The fan impeller assembling device and method provided by the invention are described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, in an embodiment of the present invention, a base 1 is cylindrical, a hub 5 of a fan impeller is disposed on an inner circumference of the cylindrical base 1, a screw hole is disposed on an upper end surface of the base 1, that is, an end surface for being attached to the hub 5, and the hub 5 is fixed to the base 1 through the screw hole, so as to facilitate assembly of a blade 6. Two landing legs 2 of support specifically are 120 alternately settings, landing leg 2 is because with 120 degrees settings, current fan wheel is three blades 6, three blades 6 are the alternate 120 settings, two landing legs 2 are not only used for the direction of blade 6 installation with 120 settings, more importantly, at first respectively along two landing legs 2 assemblies when equipment blade 6, keep the focus of blade 6 to fall on landing leg 2's focus top, the stability of support has been promoted, prevent that the support from taking place to turn on one's side. Here, 120 ° is not absolute 120 °, and the assembling process of the blade 6 can be kept stable, and may fluctuate within a range of 120 ± 5 ° for example. The purpose of using two legs 2 instead of three legs is that the three legs 2 occupy a larger area and have higher requirements on the terrain, and the three legs 2 can be arranged at 120 degrees alternately under the condition that the terrain condition allows. Two or more landing legs 2 can also set up to the mode of articulated connection, adjust the contained angle between adjacent landing leg 2 as required. The angle can be marked at the hinged part, and the included angle between the adjacent supporting legs 2 can be adjusted by marking the included angle of the axis of the adjacent supporting legs 2 at the hinged part.
In addition, the included angle of the two support legs 2 is related to the number of the blades 6 of the fan impeller, although the number of the blades 6 of the fan impeller is usually three at present, along with the development of the technology, the number of the blades 6 of the fan impeller can be 4 or more, the number of the support legs 2 can be the same as that of the blades 6, and on the premise that the assembly stability can be kept, the number of the support legs 2 is reduced, so that the limitation on the assembly site area is reduced. The angle between adjacent legs 2 is substantially equal to the angle between corresponding adjacent blades 6, so that during assembly, the center of gravity of the first assembled blade 6 falls above the corresponding leg 2, thereby ensuring the stability of the bracket during assembly.
In order to fix the landing leg 2 conveniently, the bottom end of the base 1 used for being attached to the ground can be provided with the first base plate 3, one end of the landing leg 2 far away from the base 1 is provided with the second base plate 4, the first base plate 3 and the second base plate 4 are made of steel base plates with the thickness not smaller than 2cm, the contact area between the steel base plates and the ground is increased, and the stability of the support is improved.
In order to further prevent the bracket from side turning, the foundation bolt holes are particularly formed in the first base plate 3 or the second base plate 4, when the first fan impeller assembling device is fixed, the assembling points can be selected, the setting positions of the first base plate 3 and the second base plate 4 are determined, the base plates and even the whole fan impeller assembling device are fixed through the foundation bolts and the foundation bolt holes, and side turning caused by improper operation in the assembling process is prevented.
The length of the supporting leg 2 is about 10m generally, the weight of the whole support is about 13t, the supporting leg 2 can be the supporting leg 2 with fixed length, but the problems of inconvenient transportation and poor universality exist. Therefore, a steel section telescopic bracket made of steel sections can be selected as the leg 2. On the one hand, can shorten landing leg 2 and be convenient for transport in the transportation, can also match the equipment of the fan wheel of different specifications according to the length reasonable adjustment landing leg 2 of blade 6's length.
The invention also provides a fan impeller assembling method, which applies the fan impeller assembling device provided by the embodiment, the specific flow is shown in fig. 2, and the method comprises the following steps:
s1: fixing the fan impeller assembly device on the ground;
s2: mounting a hub 5 of a fan impeller on the base 1;
s3: hoisting a first blade along the extending direction of one of the supporting legs 2;
s4: hoisting a second blade along the extending direction of the other supporting leg 2;
s5: and hoisting the third blade to complete the assembly of the fan impeller.
Wherein the operation of fixing the fan impeller assembling device to the ground in the step S1 includes: selecting a proper assembly position according to the terrain and the site space, wherein the proper assembly position comprises the slope according to a mountain body and the local flatness selection assembly position, then hoisting the fan impeller assembly device to the assembly position by adopting a crane, adjusting the length of the two support legs 2 according to the length of the blades 6 of the fan impeller, and when the two support legs 2 of the fan impeller assembly device are hinged, adjusting the included angle between the two support legs 2 to 120 degrees, attaching the two support legs 2 to the ground, then determining the fixed positions of the first base plate 3 and the second base plate 4, fixing the first base plate 3 and the second base plate 4 through anchor bolts and anchor bolt fixing holes, and realizing the fixation of the fan impeller assembly device relative to the ground.
Step S2 mounting the hub 5 of the fan wheel to the base 1 mainly includes hoisting the hub 5 by a crane or other hoisting device to be placed in alignment with the base 1.
Step S3 is to hoist the first blade along the extending direction of one of the legs 2 by the following specific operations: adjusting and rotating the hub 5 placed in the step S2 to align the two mounting holes of the hub 5 with the extending directions of the two legs 2, and fixing the hub 5 relative to the base 1 and the fan impeller assembling device through the screw holes and the bolts; and then, sequentially placing all the blades 6 in one-to-one correspondence with the mounting holes of the hub 5, and then assembling the first blades. When the first blade is assembled, the root of the blade 6 is hoisted by the first crane, the tail sliding part of the blade 6 is hoisted by the second crane, the first crane and the second crane are moved simultaneously, the first blade is kept horizontally aligned with one of the mounting holes, the first blade is fixed along the extending direction of one of the supporting legs 2, the gravity center of the first blade falls on the corresponding supporting leg 2, and the support and the fan impeller assembling device are prevented from side turning by utilizing the stability of the integral support.
The first crane usually selects a crane with a hoisting weight of about 550t, the second crane usually selects a crane with a hoisting specification of about 130t, the first crane and the second crane are usually padded with flexible linings when hoisting the blades 6, and the specific hoisting details can be specified by referring to the existing fan impeller assembly process.
The process of lifting the second blade in step S4 is the same as that in step S3, at this time, the second blade is installed in the installation hole along the extending direction of the other leg 2, the centers of the first blade and the second blade fall above the two legs 2 arranged at an included angle of 120 degrees, and the stability of the support is good.
And finally, step S5 is carried out to assemble the third blade to complete the assembly of the fan impeller, and the gravity of the third blade is balanced by the first blade and the second blade. When the blade 6 is assembled, the blade positioning block must be installed simultaneously under the guidance of the stud bolt, and passes through the bearing hole of the blade 6. When the blade 6 has been assembled to the blade 6 bearing, all nuts and washers must be fitted. The washer is properly installed with the chamfer on the washer against the nut. And after all the washers and the nuts are installed, pre-tightening the nuts in the cross diagonal direction by using an electric wrench. After all the nuts are pre-tightened, a hydraulic wrench is used for fastening torque in the cross diagonal direction for three times: the first fastening was 50% of the final value and the second fastening was 100% of the final value. The concrete operation and the protection measure for the blades 6 in the hoisting process of the fan impeller can refer to the existing fan impeller assembly flow regulation.
In particular, after step S5 is completed, the method further includes mounting the assembled fan wheel on the fan rotor, and then removing the fan wheel assembly device. In the process of installing the fan impeller on the fan rotor, a first crane is required to be adopted to hook the blade tip, in order to protect the blade tip, a flat fine lifting lock and a glass fiber protection tool are used at the blade tip, a second crane and a rope are used for winding the blade root of the fan impeller, two circles are wound at the blade root, two ends of the rope are respectively fixed on a lifting hook and a lifting arm of the second crane, the fan impeller is driven to rotate through the rope while the fan impeller is lifted, and therefore the position of the fan impeller is adjusted, and the zero scale mark of the root of the blade 6 is aligned with the zero scale mark of a variable pitch bearing connecting the fan impeller and the fan rotor.
The fan impeller assembling device and method provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The fan impeller assembling device is characterized by comprising a cylindrical base (1) and a bracket connected with the base (1); base (1) is equipped with the screw that is used for fixed fan wheel's wheel hub (5), the support includes that two are landing leg (2) that the chevron shape set up, base (1) is located two the intersection of landing leg (2) and perpendicular two the plane at landing leg (2) place.
2. Fan wheel assembly device according to claim 1, wherein the two legs (2) are arranged at an angle of 120 °.
3. The fan impeller assembly device according to claim 2, wherein a first backing plate (3) is arranged at the bottom end of the base (1), and a second backing plate (4) is arranged at one end of the supporting leg (2) far away from the base (1); the first base plate (3) and/or the second base plate (4) are provided with foundation bolt holes.
4. A fan wheel assembly as claimed in claim 3, characterised in that the legs (2) are steel telescopic supports.
5. Fan wheel assembly device according to claim 4, characterized in that the two legs (2) are hinged.
6. A fan impeller assembling method, characterized by applying the fan impeller assembling apparatus of claim 4 or 5, comprising:
fixing the fan impeller assembly device on the ground;
mounting a hub (5) of a fan impeller on the base (1);
hoisting a first blade along the extension direction of one of the support legs (2);
hoisting a second blade along the extending direction of the other support leg (2);
and hoisting the third blade to complete the assembly of the fan impeller.
7. The fan impeller assembling method according to claim 6, wherein the fixing the fan impeller assembling device to the ground specifically comprises:
determining an assembly position of the fan wheel;
adjusting the length of the support leg (2) according to the assembly position and the length of the blade (6) of the fan impeller, and determining the fixing positions of the first backing plate (3) and the second backing plate (4) according to the assembly position and the length of the support leg (2);
and aligning the first base plate (3) and the second base plate (4) to the fixed positions of the first base plate and the second base plate respectively, and fixing the first base plate and the second base plate through foundation bolt holes.
8. Method for assembling a fan wheel according to claim 7, wherein said step of lifting the first blade along the extension of one of said legs (2) comprises:
aligning any two mounting holes of the hub (5) with the extending directions of the two support legs (2) respectively and fixing the hub (5);
hoisting all the blades (6) and placing all the blades (6) in one-to-one correspondence with the mounting holes;
hoisting the root part of the first blade by adopting a first crane, and hoisting the tail sliding part of the first blade by adopting a second crane;
and moving the first crane and the second crane to horizontally lift the first blade and fix the first blade to the mounting hole along the extension direction of one of the support legs (2).
9. The fan impeller assembly method of claim 8, wherein the step of hoisting the third blade to complete the assembly of the fan impeller further comprises:
mounting the assembled fan impeller on a fan rotor;
and disassembling the fan impeller assembling device.
10. The fan impeller assembling method according to claim 9, wherein the mounting of the assembled fan impeller to a fan rotor specifically comprises:
hooking the tip of the blade (6) using the first crane;
connecting the blade root of the fan impeller by using the second crane and a rope, and driving the fan impeller to rotate by using the rope while lifting the fan impeller;
and adjusting the position of the fan impeller, and installing a zero scale line at the blade root in alignment with a zero scale line of a variable pitch bearing connecting the fan impeller and the fan rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911000394.XA CN110657070A (en) | 2019-10-21 | 2019-10-21 | Fan impeller assembling device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911000394.XA CN110657070A (en) | 2019-10-21 | 2019-10-21 | Fan impeller assembling device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110657070A true CN110657070A (en) | 2020-01-07 |
Family
ID=69041458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911000394.XA Pending CN110657070A (en) | 2019-10-21 | 2019-10-21 | Fan impeller assembling device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110657070A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734583A (en) * | 2020-04-30 | 2020-10-02 | 广东水电二局股份有限公司 | Accurate in-place installation method for wind power generation large-elevation impeller |
| CN112846748A (en) * | 2021-01-11 | 2021-05-28 | 焦成诚 | Auxiliary device is aimed at in installation of high-efficient wind-powered electricity generation wheel hub |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012046077A1 (en) * | 2010-10-08 | 2012-04-12 | Divex Limited | Apparatus and method for the erection of a wind turbine |
| CN106677994A (en) * | 2016-12-30 | 2017-05-17 | 北京金风科创风电设备有限公司 | Impeller assembling device and impeller assembling method |
| CN208966490U (en) * | 2018-09-20 | 2019-06-11 | 浙江运达风电股份有限公司 | A kind of wind wheel mounting plate |
-
2019
- 2019-10-21 CN CN201911000394.XA patent/CN110657070A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012046077A1 (en) * | 2010-10-08 | 2012-04-12 | Divex Limited | Apparatus and method for the erection of a wind turbine |
| CN106677994A (en) * | 2016-12-30 | 2017-05-17 | 北京金风科创风电设备有限公司 | Impeller assembling device and impeller assembling method |
| CN208966490U (en) * | 2018-09-20 | 2019-06-11 | 浙江运达风电股份有限公司 | A kind of wind wheel mounting plate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734583A (en) * | 2020-04-30 | 2020-10-02 | 广东水电二局股份有限公司 | Accurate in-place installation method for wind power generation large-elevation impeller |
| CN111734583B (en) * | 2020-04-30 | 2021-05-07 | 广东水电二局股份有限公司 | Accurate in-place installation method for wind power generation large-elevation impeller |
| CN112846748A (en) * | 2021-01-11 | 2021-05-28 | 焦成诚 | Auxiliary device is aimed at in installation of high-efficient wind-powered electricity generation wheel hub |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5629316B2 (en) | Telescopic tower assembly and method | |
| CA2735625C (en) | Method of building a hybrid tower for a wind generator | |
| US7877934B2 (en) | Lifting system and apparatus for constructing wind turbine towers | |
| CN110657070A (en) | Fan impeller assembling device and method | |
| CN103982045A (en) | Installation construction method of roof lattice shell structure without supports and cantilevers | |
| CN108755439B (en) | Universal telescopic support frame suitable for V-shaped bridge pier and installation method | |
| CN206667073U (en) | Spliced rotation body support | |
| CN111894283A (en) | Installation method of splayed steel concrete composite structure diagonal bracing steel beam | |
| CN210117742U (en) | Building reinforced structure that rectifies | |
| EP3715630B1 (en) | A system and method for the service and exchange of a yaw bearing for a machine head of a wind turbine | |
| CN217896554U (en) | Be used for pre-buried positioner of different model tower crane foundations | |
| CN215925714U (en) | Construction tool for integral vertical rotation of steel tower | |
| CN112901421A (en) | Installation device and installation method of tower drum accessory | |
| CN212425196U (en) | Auxiliary installation fan foundation ring installation bracket | |
| CN220519990U (en) | Hoisting and turning device for special-shaped members of plate girder combined beam | |
| CN217734904U (en) | Auxiliary platform for in-place installation of inclined steel column | |
| CN115126329B (en) | Device and method for installing assembled electric pole | |
| CN217152173U (en) | Floor structure of hydraulic generator | |
| JPS6330792Y2 (en) | ||
| CN110407113B (en) | Construction method for installation and displacement of tower crane | |
| CN219315818U (en) | Positioning device for embedded sleeve of cast-in-situ cover plate of cable shaft | |
| CN218293751U (en) | Portable fan pole setting mount pad | |
| CN219794225U (en) | Steel construction column base built-in fitting | |
| CN217325050U (en) | Bracket structure for supporting trestle platform | |
| CN212272066U (en) | Portable swing arm device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200107 |
|
| RJ01 | Rejection of invention patent application after publication |