CN111170155B - Vertical lifting appliance for blades of ocean current energy generator set and mounting method of vertical lifting appliance - Google Patents
Vertical lifting appliance for blades of ocean current energy generator set and mounting method of vertical lifting appliance Download PDFInfo
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- CN111170155B CN111170155B CN201911389847.2A CN201911389847A CN111170155B CN 111170155 B CN111170155 B CN 111170155B CN 201911389847 A CN201911389847 A CN 201911389847A CN 111170155 B CN111170155 B CN 111170155B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/122—Sling or load protectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/16—Slings with load-engaging platforms or frameworks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
- B66C13/085—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions electrical
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- 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
- F03D13/40—Arrangements or methods specially adapted for transporting wind motor components
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention provides a vertical blade lifting appliance of an ocean current energy generator set and an installation method thereof, wherein the vertical blade lifting appliance of the ocean current energy generator set comprises a fixed sleeve for supporting a blade at the bottom and an adjusting sleeve for adjusting the position of the blade at the upper part, clamping devices for clamping the upper part of the blade are symmetrically installed on two sides of the adjusting sleeve, the two sides of the adjusting sleeve and the fixed sleeve are connected through a bearing rod, and a connecting piece for connecting a crane is arranged on the adjusting sleeve; the clamping device comprises two movable V-shaped blocks, and the movable V-shaped blocks are connected with an adjusting device for adjusting the positions of the movable V-shaped blocks and are positioned on the inner side of the adjusting sleeve. The invention can better ensure the vertical posture of the blade in the hoisting process, and can adjust the posture to a certain extent in the installation process, thereby reducing the manpower and material resources consumed in the installation process, preventing the generation of deformation and abrasion, ensuring the whole process to be convenient and quick, and improving the installation precision.
Description
Technical Field
The invention belongs to the field of ocean current energy utilization, and particularly relates to a vertical blade lifting appliance of an ocean current energy generator set and an installation method thereof.
Background
A large amount of ocean energy is stored in the ocean, and the global ocean energy storage is 1500 hundred million kilowatts according to statistics. The development of ocean energy power generation can improve the energy structure and reduce the environmental pollution. Under the action of tidal force, the moving seawater passes through the gorges between islands to form tidal current energy. The system has the characteristics of wide distribution, high energy density, high development, periodic reciprocating flow and strong predictability and continuity. Under the same power level, the ocean current energy power generation equipment is smaller in size and scale and relatively low in cost. The development and utilization of ocean current energy have great significance for promoting economic development, saving energy, reducing emission and protecting environment.
Current ocean current energy generating set is mostly the floating formula, mainly includes mounting platform, body and ocean current energy power generation facility promptly, and two fixed bodies of both ends symmetry installation about mounting platform, ocean current energy power generation facility pass through hoist mechanism and connect in mounting platform, drive its lift removal. The floating body floats on the sea surface, and the lower part of the floating body is fixed on the sea bottom through an anchor chain. The impeller of the horizontal shaft ocean current energy generator set mainly comprises a hub and three blades, and due to the consideration of factors such as cost and safety, the size of the mounting platform is not too large, and peripheral equipment is reduced as much as possible. The ocean current energy turbine unit is installed at a lower position compared with a wind turbine unit due to the special working position of the ocean current energy turbine unit, and a crane is not needed for lifting the blades to a higher position. Therefore, in order to simplify the installation process and reduce the size of the platform, a vertical installation method is often adopted, and usually a crane is used for binding and fixing the blade by using a rope, so that the end face of the blade root is downward, and the blade tip is vertically upward. During hoisting, the crane is lifted to hoist the blades to be right above the impeller of the ocean current energy generator set, and the blade mounting positions on the impeller are enabled to be horizontally upward as far as possible and correspond to the end faces of the blade roots. In the prior art, blade hoisting has higher technical requirements on field workers, the operation of binding by using ropes is complex, the implementation is difficult, and the safety and reliability of hoisting cannot be ensured. Hang and be difficult to nimble adjustment blade gesture when to impeller mounted position cooperation location, unable initiative adaptation impeller angle realizes the location of bolt hole, requires to have higher positioning accuracy just can accomplish the installation, and it is also more difficult with the maintenance simultaneously to dismantle, and is consuming time longer and easily causes unnecessary damage to the work piece because of the adjustment blade gesture.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the vertical blade lifting appliance of the ocean current energy generator set, which can improve the safety and the high efficiency of field installation and can well protect the blades.
The invention also provides an installation method of the vertical blade hanger of the ocean current energy generator set, which improves the safety and the high efficiency of field installation and can well protect the blades.
The technical scheme adopted by the invention is as follows:
the utility model provides a perpendicular hoist of ocean current energy generating set blade which characterized in that: the clamping device comprises a fixed sleeve used for supporting a blade at the bottom and an adjusting sleeve used for adjusting the position of the blade at the upper part, clamping devices used for clamping the upper part of the blade are symmetrically arranged on two sides of the adjusting sleeve, the two sides of the adjusting sleeve and the fixed sleeve are connected through a force bearing rod, and a connecting piece used for being connected with a crane is arranged on the adjusting sleeve; the clamping device comprises two movable V-shaped blocks, and the movable V-shaped blocks are connected with an adjusting device for adjusting the positions of the movable V-shaped blocks and are positioned on the inner side of the adjusting sleeve.
Furthermore, the fixed sleeve is formed by connecting and fixing two split type semicircular shaft sleeves through bolts.
Furthermore, the bottom of the fixed sleeve is folded inwards to form a supporting surface, and a mounting hole matched with the bolt at the root of the blade is formed in the edge of the inner side of the supporting surface to form a supporting clamping ring.
Furthermore, a buffer rubber pad is paved on the surface of the inner side of the fixed sleeve matched with the root part of the blade so as to reduce local stress concentration and provide a buffer position for adjusting the posture of the blade.
Furthermore, the adjusting sleeve is formed by connecting and fixing two adjusting wing plates with trapezoidal sections through bolts.
Furthermore, the adjusting device is a hydraulic or pneumatic device, a cylinder body of the adjusting device is arranged on the inner side of the adjusting wing plate, and the extending end of the piston rod is hinged on the movable V-shaped block to provide power for the adjusting device.
Or the adjusting device is a spiral transmission mechanism, the nut is fixed on the movable V-shaped block, and the corresponding screw rod is connected with a driving motor arranged on the adjusting wing plate through a worm and gear mechanism.
Furthermore, a buffer rubber layer is paved on the contact surface of the movable V-shaped block and the blade, the movable V-shaped block can be fully contacted with the blade and provide enough fixing force, and the included angle of the movable V-shaped block is matched with the shape of the corresponding side surface of the hoisted blade.
A vertical installation method for blades of an ocean current energy generator set comprises the following steps of:
(1) installing split type semicircular shaft sleeves, adjusting wing plates and clamping devices which are rigidly connected by a bearing rod to two sides of the blade, enabling the end surface of the root part of the blade to be fully contacted with a supporting snap ring of a fixed sleeve, and fully fixing the split type semicircular shaft sleeves and the adjusting wing plates on the two sides by bolts;
(2) adjusting the position of a movable V-shaped block of the clamping device to enable the movable V-shaped block to be fully contacted with the blade and apply enough pretightening force, and fully fixing the blade and the lifting appliance;
(3) connecting the two lifting lugs through a rope by using a crane, lifting the blade to a vertical state by using a rotating and pulling method, lifting the blade to a certain height from the ground, and screwing all bolts into the root embedded bolt sleeves;
(4) the blades are conveyed to the position above an impeller of the ocean current energy generator set by using a crane, the impeller is rotated to enable the end surfaces of the mounting positions of the blades to be kept horizontal, the blades slowly descend, the positions of clamping devices on two sides are adjusted, and the postures of the blades are adjusted in a small range to enable the end surfaces of the root parts of the blades to be further parallel to the end surfaces of the mounting positions;
(5) butting a bolt at the root of the blade with a mounting position on a hub of the impeller, inserting the bolt at the root of the blade into the mounting hole position as far as possible, removing a lifting appliance from the butted blade after ensuring the reliable butting, bearing the dead weight of the blade by buffer blocks with different heights mounted below the bolt of the blade, completely inserting the bolt into the mounting hole position after the bolt is fully deformed, and removing the buffer block and mounting a nut;
(6) and (5) repeating the steps (1) to (5), and mounting another blade on another mounting position of the impeller hub until all the blade mounting work is completed.
Further, in step (5), the nuts may be pre-installed on the root bolts before the hanger is removed when the bolts are inserted into the installation holes.
The invention has the beneficial effects that:
1. ocean current energy generating set blade is by the transportation state to the rotatory method of pulling that uses of vertical hoisting state, and traditional approach can't provide abundant protection to the blade root, makes the root produce unnecessary wearing and tearing and deformation easily in the promotion process, reduces pre-buried bolt cover position precision, increases the installation degree of difficulty. The blade root fixing sleeve provided by the invention can be quickly installed in the hoisting process and replaces the contact of the blade and the ground, and meanwhile, the stress area of the blade is fully increased by using the buffer rubber, so that the generation of deformation and abrasion is prevented, and the whole process is convenient and quick.
2. Compared with rope binding used in the traditional vertical hoisting, the vertical hoisting tool provided by the invention is safe and reliable, and is convenient and quick to install and disassemble. The vertical posture of the blade can be better guaranteed in the hoisting process, meanwhile, the posture can be adjusted to a certain degree in the installation process, manpower and material resources consumed in the installation process are reduced, the poor contact conditions such as collision of a bolt and an impeller hub in the installation process of a traditional method are avoided, and the installation precision is improved.
Drawings
FIG. 1 is a schematic structural view of a blade of an ocean current energy generating set, which is mounted and fixed on a blade by a vertical lifting appliance;
FIG. 2 is a schematic side view of the blade vertical hanger of the ocean current energy generating set of the present invention mounted and fixed on the blade;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic structural diagram of a fixed sleeve part in the process of hoisting the blades of the ocean current energy generator set;
fig. 5 is a structural schematic diagram of an impeller hub of the ocean current energy generator set.
Reference numerals: 1. an impeller hub; 2. a blade root bolt; 3. fixing the sleeve bolt and nut; 4. fixing a sleeve; 41. a support surface; 5. a blade; 6. a hoisting ring; 7. an adjusting sleeve; 8. adjusting a wing plate bolt and a nut; 9. a force bearing rod; 10. a hydraulic valve; 11. a movable V-shaped block; 12. a hydraulic lever; 13. and a hydraulic cylinder.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to limit the invention to these embodiments. It will be appreciated by those skilled in the art that the present invention encompasses all alternatives, modifications and equivalents as may be included within the scope of the claims.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example one
Referring to fig. 1-4, the embodiment provides a vertical blade hanger for a ocean current energy generator set, which includes a fixed sleeve 4 for supporting a blade 5 at the bottom and an adjusting sleeve 7 for adjusting the position of the blade at the upper part, clamping devices for clamping the upper part of the blade are symmetrically installed on two sides of the adjusting sleeve 7, two sides of the adjusting sleeve 7 and two sides of the fixed sleeve 4 are connected through a bearing rod 9, a connecting piece for connecting with a crane is arranged on the adjusting sleeve 4, and the connecting piece is a hanging ring 6; the clamping device comprises two movable V-shaped blocks 11, and the movable V-shaped blocks 11 are connected with an adjusting device for adjusting the positions of the movable V-shaped blocks and are positioned on the inner side of the adjusting sleeve 7.
This embodiment fixed cover 4 is fixed in 5 roots of blade by the fixed metalwork that forms of bolted connection by two subdivision formula semicircle axle sleeves, and the edge leaves the installation hole site of fixed cover bolt and nut 3, and two subdivision formula semicircle axle sleeves connect reciprocal anchorage through fixed cover bolt and nut 3, constitute a complete axle sleeve, and its internal diameter is clearance fit with 5 root external diameters of blade. Fixed cover 4 bottom infolding forms holding surface 41, the inboard edge of holding surface 41 set up with the mounting hole formation support snap ring of 5 root bolts looks adaptations of blade, bear 5 weight of blade, leave 18 installation hole sites for 18 blade root bolts 2 of 5 root installations of blade on it to increase snap ring area, avoid simultaneously in installation, dismantlement process taking place to interfere with blade root bolt 2, improve the fail safe nature of hoist and mount. And a buffer rubber pad is paved on the surface of the inner side of the fixed sleeve 4 matched with the root of the blade 5 so as to reduce local stress concentration and provide a buffer position for adjusting the posture of the blade 5. The two bearing rods 9 are respectively and rigidly connected with the fixed sleeve 4 and the adjusting sleeve 7, and are used for transferring the load of the fixed sleeve 4 to the adjusting sleeve 7.
The adjusting sleeve 7 of the present embodiment is formed by connecting and fixing two adjusting wing plates with trapezoidal cross sections by bolts. The two sides of the adjusting wing plate are provided with mounting positions of adjusting wing plate bolts and nuts 8, the adjusting wing plates on the two sides are mutually fixed through bolt connection, mounting positions required by a clamping device are reserved on the adjusting wing plate, and the adjusting wing plate is provided with a connecting piece used for connecting a sling, and the adjusting wing plate connecting pieces on the two sides are connected with a crane through a rope. The clamping devices are respectively arranged at the installation positions of the two side adjusting wing plates and comprise two movable V-shaped blocks 11, the adjusting devices are used for adjusting the positions of the movable V-shaped blocks 11 to change and adjusting the distance between the wing plates so as to clamp and fix the blades 5 between the two wing plates, and the postures of the blades 5 can be changed in a small range by adjusting the positions of the movable V-shaped blocks 11 at the two sides, so that the accuracy of the installation and positioning process is improved. The two adjusting wing plates form an annular inner space, and the movable range of the movable V-shaped block 11 is matched with the size of the middle section of the blade 5.
The adjusting device between the movable V-shaped block 11 and the adjusting wing plate in this embodiment is: a hydraulic valve 10 and a hydraulic cylinder 13 of the hydraulic or pneumatic device are arranged on the adjusting wing plate 7, and the extending end of a hydraulic rod 12 is hinged on the movable V-shaped block 11 to provide power for the adjusting device. Of course, the adjusting device may also be: by means of the screw mechanism, the nut is fixed on the movable V-shaped block 11, and the corresponding screw rod is connected with a driving motor installed on the adjusting wing plate through a worm and gear mechanism. The adjusting devices are arranged on the two-side adjusting wing plate, namely the two adjusting devices can independently adjust the position of the movable V-shaped block 11 on the side to provide proper clamping force and adjust the posture of the blade 5. The contact surface of the movable V-shaped block 11 and the blade 5 is paved with a buffer rubber layer which can be fully contacted with the blade 5 and provide enough fixing force, and the included angle of the movable V-shaped block 11 is matched with the corresponding contact surface shape of the blade 5.
The blade of the ocean current energy generator set adopts a rotation pulling method from a transportation state to a vertical hoisting state, the root of the blade cannot be fully protected by the traditional method, unnecessary abrasion and deformation of the root are easily caused in the hoisting process, the position precision of the embedded bolt sleeve is reduced, and the installation difficulty is increased. The blade root fixing sleeve 4 provided by the invention can be quickly installed in the hoisting process and replaces the contact of the blade and the ground, and meanwhile, the stress area of the blade is fully increased by using the buffer rubber, so that the generation of deformation and abrasion is prevented, and the whole process is convenient and quick. Compared with rope binding used in the traditional vertical hoisting, the vertical hoisting tool provided by the invention is safe and reliable, and is convenient and quick to install and disassemble. The vertical posture of the blade can be better guaranteed in the hoisting process, meanwhile, the posture can be adjusted to a certain degree in the installation process, manpower and material resources consumed in the installation process are reduced, the poor contact conditions such as collision of a bolt and an impeller hub in the installation process of a traditional method are avoided, and the installation precision is improved.
Example two
Referring to fig. 5, the embodiment provides a method for vertically installing blades of an ocean current energy generator set, and the vertical lifting appliance for blades of an ocean current energy generator set according to the first embodiment includes the following steps:
(1) the blade 5 is transported to the installation site, the split type semicircular shaft sleeves, the adjusting wing plates and the clamping devices which are rigidly connected by the bearing rods 9 are arranged on two side surfaces of the blade 5, the end surface of the root part of the blade 5 is fully contacted with the supporting snap ring of the fixed sleeve 4, and the split type semicircular shaft sleeves and the adjusting wing plates on the two sides are fully fixed by bolts.
(2) The position of the movable V-shaped block 11 of the clamping device is adjusted to be in full contact with the blade 5 and apply enough pretightening force, and the blade 5 and the lifting appliance are fully fixed.
(3) The two lifting rings 6 are connected through a rope by using a crane, the blade is lifted to a vertical state by using a rotating and pulling method and lifted to a certain height from the ground, and at the moment, all the blade root bolts 2 are screwed in the root embedded bolt sleeves.
(4) The blade 5 is transported to the position above the impeller hub 1 of the ocean current energy generator set by using a crane, the impeller hub 1 is rotated to keep the end face of the blade mounting position horizontal, the blade 5 slowly descends and the positions of the clamping devices at the two sides are adjusted, and the posture of the blade 5 is adjusted in a small amplitude to further enable the end face of the root part of the blade to be parallel to the end face of the mounting position.
(5) The blade root bolt 2 is butted with the mounting position on the impeller hub 1, the blade root bolt 2 is inserted into the mounting hole position as far as possible, after the butt joint is ensured to be reliable, the sling is removed from the butted blade, at the moment, the dead weight of the blade 5 is borne by the buffer rubber laid below the blade root bolt 2 and at the corresponding end surface of the impeller hub 1, the blade root bolt 2 is completely inserted into the mounting hole position after the full deformation, and at the moment, the buffer rubber is removed and the nut is mounted.
(6) And (5) repeating the steps (1) to (5), and mounting another blade on another mounting position of the impeller hub 1 until all the blade mounting work is completed.
In step (5), the nut may be pre-installed on the blade root bolt 2 before the hanger is removed when the blade root bolt 2 is inserted into the installation hole.
The invention can better ensure the vertical posture of the blade in the hoisting process, and can adjust the posture to a certain extent in the installation process, thereby reducing the manpower and material resources consumed in the installation process, preventing the generation of deformation and abrasion, ensuring the whole process to be convenient and quick, and improving the installation precision.
Claims (7)
1. A vertical blade mounting method for an ocean current energy generator set adopts a vertical blade hanger for the ocean current energy generator set, the vertical blade hanger for the ocean current energy generator set comprises a fixed sleeve for supporting a blade at the bottom and an adjusting sleeve for adjusting the position of the blade at the upper part, clamping devices for clamping the upper part of the blade are symmetrically mounted on two sides of the adjusting sleeve, two sides of the adjusting sleeve and two sides of the fixed sleeve are connected through a bearing rod, and a connecting piece for connecting a crane is arranged on the adjusting sleeve; the clamping device comprises two movable V-shaped blocks, and the movable V-shaped blocks are connected with an adjusting device for adjusting the positions of the movable V-shaped blocks and are positioned on the inner side of the adjusting sleeve;
the fixing sleeve is formed by connecting and fixing two split type semicircular shaft sleeves through bolts;
the adjusting sleeve is formed by connecting and fixing two adjusting wing plates with trapezoidal sections through bolts;
the method for vertically installing the blades of the ocean current energy generator set comprises the following specific steps:
(1) installing split type semicircular shaft sleeves, adjusting wing plates and clamping devices which are rigidly connected by a bearing rod to two sides of the blade, enabling the end surface of the root part of the blade to be fully contacted with a supporting snap ring of a fixed sleeve, and fully fixing the split type semicircular shaft sleeves and the adjusting wing plates on the two sides by bolts;
(2) adjusting the position of a movable V-shaped block of the clamping device to enable the movable V-shaped block to be fully contacted with the blade and apply enough pretightening force, and fully fixing the blade and the lifting appliance;
(3) connecting the two lifting lugs through a rope by using a crane, lifting the blade to a vertical state by using a rotating and pulling method, lifting the blade to a certain height from the ground, and screwing all bolts into the root embedded bolt sleeves;
(4) the blades are conveyed to the position above an impeller of the ocean current energy generator set by using a crane, the impeller is rotated to enable the end surfaces of the mounting positions of the blades to be kept horizontal, the blades slowly descend, the positions of clamping devices on two sides are adjusted, and the postures of the blades are adjusted in a small range to enable the end surfaces of the root parts of the blades to be further parallel to the end surfaces of the mounting positions;
(5) butting a bolt at the root of the blade with a mounting position on a hub of the impeller, inserting the bolt at the root of the blade into a mounting hole position as far as possible, removing a lifting appliance from the butted blade after ensuring the reliable butting, bearing the dead weight of the blade by buffer blocks with different heights mounted below the bolt at the root of the blade, completely inserting the bolt at the root of the blade into the mounting hole position after the bolt is fully deformed, and removing the buffer blocks and mounting nuts at the moment;
(6) and (5) repeating the steps (1) to (5), and mounting another blade on another mounting position of the impeller hub until all the blade mounting work is completed.
2. The vertical installation method of the blades of the ocean current energy generator set according to claim 1, is characterized in that: the bottom of the fixed sleeve is inwards folded to form a supporting surface, and a mounting hole matched with the bolt at the root of the blade is formed in the edge of the inner side of the supporting surface to form a supporting clamping ring.
3. The vertical installation method of the blades of the ocean current energy generator set according to claim 1, is characterized in that: and a buffer rubber pad is paved on the surface of the inner side of the fixed sleeve matched with the root part of the blade.
4. The vertical installation method of the blades of the ocean current energy generator set according to any one of claims 1 to 3, wherein the vertical installation method comprises the following steps: the adjusting device is a hydraulic or pneumatic device, a cylinder body of the adjusting device is arranged on the inner side of the adjusting wing plate, and the extending end of the piston rod is hinged on the movable V-shaped block.
5. The vertical installation method of the blades of the ocean current energy generator set according to any one of claims 1 to 3, wherein the vertical installation method comprises the following steps: the adjusting device is a spiral transmission mechanism, the nut is fixed on the movable V-shaped block, and the corresponding screw rod is connected with a driving motor arranged on the adjusting wing plate through a worm and gear mechanism.
6. The vertical installation method of the blades of the ocean current energy generator set according to claim 1, is characterized in that: and a buffer rubber layer is paved on the contact surface of the movable V-shaped block and the blade, and the included angle of the movable V-shaped block is matched with the shape of the corresponding side surface of the hoisted blade.
7. The vertical installation method of the blades of the ocean current energy generator set according to claim 1, is characterized in that: in step (5), when the bolt is inserted into the mounting hole, the nut is pre-mounted on the bolt at the root of the blade before the hanger is dismantled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911389847.2A CN111170155B (en) | 2019-12-30 | 2019-12-30 | Vertical lifting appliance for blades of ocean current energy generator set and mounting method of vertical lifting appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911389847.2A CN111170155B (en) | 2019-12-30 | 2019-12-30 | Vertical lifting appliance for blades of ocean current energy generator set and mounting method of vertical lifting appliance |
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| CN111170155A CN111170155A (en) | 2020-05-19 |
| CN111170155B true CN111170155B (en) | 2020-11-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112010002148A5 (en) * | 2009-05-29 | 2012-10-31 | Ebf Dresden Gmbh | DEVICE FOR INSPECTION AND MAINTENANCE WORK ON ROTOR BLADES AND / OR THE TOWER SURFACE OF LARGE WIND POWER PLANTS, IN PARTICULAR OFF-SHORE PLANTS |
| CN203638954U (en) * | 2013-11-04 | 2014-06-11 | 北京航天发射技术研究所 | Hanger for vertically hoisting fairing |
| CN203715060U (en) * | 2014-01-24 | 2014-07-16 | 江苏金风科技有限公司 | 30-degree angle installation hanging tool of blade of wind generating set |
| WO2017071719A1 (en) * | 2015-10-30 | 2017-05-04 | Vestas Wind Systems A/S | Blade lifting method and apparatus |
| CN206562256U (en) * | 2016-11-10 | 2017-10-17 | 天津建筑机械厂 | A kind of axle vertical hoisting tool |
| CN208648541U (en) * | 2018-08-06 | 2019-03-26 | 洛阳欧科拜克生物技术股份有限公司 | A kind of fixture lifted for being inoculated with tank |
-
2019
- 2019-12-30 CN CN201911389847.2A patent/CN111170155B/en active Active
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| Publication number | Publication date |
|---|---|
| CN111170155A (en) | 2020-05-19 |
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