Double-C-shaped upper and lower hydraulic pressure-bearing plate type single-blade clamp

Abstract

The utility model relates to a double-C-shaped upper and lower hydraulic pressure-bearing plate type single-blade clamp, which relates to the field of hoisting clamps, and comprises a connecting unit which is used as a basic part and can be connected with a hoisting structure; the mounting units are arranged at two ends of the connecting unit; and the clamping unit is arranged on the mounting unit, and a C-shaped clamping structure is formed between the clamping unit and the mounting unit so as to clamp and fix the single blade. A single blade is placed on the clamp, the single blade is clamped and fixed through the two clamping units, a lifting hook of a crane is matched with a lifting ring, then the whole clamp is lifted through the crane, the single blade is aligned with the mounting position of a hub, and after the single blade is mounted and pre-tightened through a bolt, the crane slowly moves backwards, so that the single blade is clamped and fixed. Until the clamp does not interfere with the single blade. The hoisting requirement of the oversized blade can be met, it can be guaranteed that the blade can retreat from the C-shaped clamp to be surrounded after the blade is hoisted, and the quality of the finished blade is guaranteed.

Description

Technical Field

[0001] This application relates to the field of lifting fixtures, and in particular, to a double C-shaped upper and lower hydraulic bearing plate type single blade fixture. Background Art

[0002] In the context of the gradual depletion of global fossil energy and the severe situation of climate change, wind energy, as a renewable and clean energy with little environmental impact, has become increasingly prominent in its strategic value, and countries attach great importance to wind energy. Moreover, large offshore power generation plants belong to a new market industry, and there is a very scarce experience in similar engineering construction that can be used for reference.

[0003] In the related art, usually three single blades are first assembled to the hub on the ground to form an impeller, and then the impeller is lifted into the air by a crane, and then the impeller and the generator nacelle are assembled.

[0004] In view of the above related art, as the scale of a single wind turbine in offshore wind power projects is getting larger and the weight of a single blade of the wind turbine is getting heavier, it is difficult to complete the lifting of the impeller. Content of the Utility Model

[0005] In order to reduce the difficulty of lifting the blade, this application provides a double C-shaped upper and lower hydraulic bearing plate type single blade fixture.

[0006] This application provides a double C-shaped upper and lower hydraulic bearing plate type single blade fixture, and adopts the following technical solutions:

[0007] A double C-shaped upper and lower hydraulic bearing plate type single blade fixture includes:

[0008] A connection unit, as a basic component, can be connected to a lifting structure;

[0009] An installation unit is arranged at both ends of the connection unit;

[0010] A clamping unit is arranged on the installation unit, and a "C"-shaped clamping structure is formed between the clamping unit and the installation unit to clamp and fix the single blade.

[0011] By adopting the above technical solutions, after the installation of the tower body and the nacelle is completed, the rotating end of the hub is connected to the nacelle, then the single blade is placed on the fixture of this application, and the single blade is clamped and fixed by two clamping units. The hook of the crane is matched with the sling, and then the entire fixture is lifted by the crane, and the installation position of the single blade is aligned with the hub. After that, the installation between the single blade and the hub is completed. After the single blade is installed and the bolts are pre-tightened, the operator cancels the clamping of the single blade by the clamping unit, and the crane slowly moves backward until the fixture does not interfere with the single blade. This application can not only meet the requirements for lifting ultra-large blades, but also ensure that after the blade is lifted, the blade can withdraw from the embrace of the C-shaped fixture, ensuring the quality of the blade finished product.

[0012] Optionally, the clamping unit includes:

[0013] A lower clamping member disposed at the lower end of the mounting unit;

[0014] A hinged arm hinged to the mounting unit;

[0015] An upper clamping member connected to one end of the hinged arm away from the mounting unit;

[0016] A clamping driving member serving as a driving source, with both ends thereof hinged to the connecting unit and the hinged arm respectively.

[0017] By adopting the above technical solution, when the single blade is horizontally placed on the fixture, the length direction of the single blade is kept as parallel as possible to the length direction of the connecting unit, the lower clamping member supports the single blade, and the single blade contacts the inner side of the lower mounting arm. Then, the piston rod of the clamping driving member extends to push the hinged arm to move, so that the upper clamping member and the lower clamping member clamp the upper and lower ends of the single blade.

[0018] Optionally, a lifting arm is hinged to the connecting unit, and an angle driving member is hinged between the lifting arm and the connecting unit.

[0019] By adopting the above technical solution, the inclination angle of the connecting unit can be slightly adjusted by the extension or contraction of the piston rod of the angle driving member, so that the center of gravity of the single blade coincides with the center of the fixture as much as possible.

[0020] Optionally, balance wings are hinged to both ends of the connecting unit, and a balance driving member is hinged between the balance wings and the connecting unit.

[0021] By adopting the above technical solution, before hoisting the fixture, the piston rod of the balance driving member pushes the balance wings to unfold, so that the center of gravity of the single blade coincides with the center of the fixture during hoisting, thereby increasing the smoothness during the docking of the single blade at high altitude.

[0022] Optionally, the lower clamping member includes a lower mounting seat connected to the mounting unit, a plurality of lower clamping seats hinged to the lower mounting seat, and a plurality of lower clamping plates disposed on the lower clamping seats. The plurality of lower clamping seats and lower clamping plates are arranged along the length direction of the connecting unit.

[0023] By adopting the above technical solution, a plurality of lower clamping seats and lower clamping plates are provided, which can increase the contact area between the single blade and the lower clamping plate and the upper clamping plate respectively, so as to reduce the bearing pressure and ensure that the single blade can smoothly withdraw after the hoisting is completed.

[0024] Optionally, the mounting unit includes an upper mounting arm connected to the connecting unit, a lower mounting arm sleeved on the lower end of the upper mounting arm, and a connecting assembly connecting the upper mounting arm and the lower mounting arm.

[0025] By adopting the above technical solution, the detachable fixed installation of the upper mounting arm and the lower mounting arm can be realized, which facilitates the disassembly and assembly between the upper mounting arm and the lower mounting arm.

[0026] Optionally, the connecting assembly includes a connecting bolt passing through the upper mounting arm and the lower mounting arm and a connecting nut threaded with the connecting bolt.

[0027] By adopting the above technical solution, the connecting bolt and the connecting nut are detachably connected, so that the upper mounting arm and the lower mounting arm can be detachably connected, and the connection is firm.

[0028] Optionally, a receiving frame for receiving is provided at the bottom of the connecting unit.

[0029] By adopting the above technical solution, after the receiving frame is installed in the designated area, the clamp is first hoisted on the receiving frame by a crane, so that the top of the receiving frame supports the bottom surface of the connecting unit, so that the bottom of the lower mounting arm does not touch the ground and is not prone to bending.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. This application can not only meet the requirements for hoisting of super-large blades, but also ensure that after the blade hoisting is completed, the blade can be withdrawn from the embrace of the C-type clamp, thus ensuring the quality of the finished blade. ;

[0032] 2. Before hoisting the fixture, the piston rod of the balance drive pushes the balance wing to unfold, so that the center of gravity of the single blade coincides with the center of the fixture during hoisting, so as to increase the stability of the single blade when docking at high altitude. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of a double C-shaped upper and lower hydraulic pressure plate type single blade clamp;

[0034] Figure 2 It is a side view of a double C-type upper and lower hydraulic pressure plate type single blade clamp;

[0035] Figure 3 It is a front view of the clamping unit of the double C-type upper and lower hydraulic pressure plate type single blade clamp;

[0036] Figure 4 It is a side view of the clamping unit of the double C-type upper and lower hydraulic pressure plate type single blade clamp.

[0037] Description of reference numerals: 1. Connection unit; 2. Installation unit; 3. Clamping unit; 4. Hoisting arm; 5. Hoisting ring; 6. Upper mounting arm; 7. Lower mounting arm; 8. Connection assembly; 9. Connection bolt; 10. Connection nut; 11. Lower clamping member; 12. Hinge arm; 13. Upper clamping member; 14. Clamping driving member; 15. Lower mounting seat; 16. Lower clamping seat; 17. Lower clamping plate; 18. Upper mounting seat; 19. Upper clamping seat; 20. Upper clamping plate; 21. Balance wing; 22. Balance driving member; 23. Angle driving member; 24. Bearing frame. Detailed implementation manners

[0038] The following further elaborates on this application in conjunction with the attached Figures 1 to 4 drawings.

[0039] An embodiment of this application discloses a double C-shaped upper and lower hydraulic pressing plate type single-blade clamp. Referring to Figure 1 and Figure 2 , the double C-shaped upper and lower hydraulic pressing plate type single-blade clamp includes a connection unit 1, an installation unit 2, and a clamping unit 3. The connection unit 1 serves as a basic component. A hoisting arm 4 is installed at the middle position inside the connection unit 1. The hoisting arm 4 extends out of the top of the connection unit 1. A hoisting ring 5 is installed at the top of the hoisting arm 4. The connection unit 1 can be connected to a hoisting structure. In this embodiment, the hoisting structure is a crane. The hoisting ring 5 cooperates with the hook of the crane, enabling the crane to lift the entire clamp. The clamp is used to clamp a single blade.

[0040] The installation unit 2 is fixed on the same side of the connection unit 1 and near both ends. The installation unit 2 is integrally in a "C" shape. The clamping unit 3 is installed inside the installation unit 2. A "C" - shaped clamping structure is formed between the clamping unit 3 and the installation unit 2. The clamping unit 3 clamps the single blade placed inside the "C" - shaped clamping structure to achieve the clamping and fixing of the single blade.

[0041] After the installation of the tower body and the nacelle is completed, connect the hub to the rotating end of the nacelle. Then place the single blade on the clamp of this application, and clamp and fix the single blade through two clamping units 3. Cooperate the hook of the crane with the hoisting ring 5, and then lift the entire clamp by the crane, and align the installation position of the single blade with the hub. After that, complete the installation between the single blade and the hub. After the single blade is installed and the bolts are pre - tightened, the operator cancels the clamping of the single blade by the clamping unit 3, and the lifting conductor commands the crane to slowly move backward until the clamp does not interfere with the single blade. This application can not only meet the requirements for hoisting super - large blades but also ensure that after the blade hoisting is completed, the blade can withdraw from the C - shaped clamp, ensuring the quality of the blade finished product.

[0042] Referring to Figure 3 and Figure 4, Preferably, the installation unit 2 includes an upper installation arm 6, a lower installation arm 7 and a connection component 8. The upper installation arm 6 is fixed to one side of the connection unit 1 near the end. The end of the upper installation arm 6 away from the connection unit 1 is vertically arranged. The lower installation arm 7 is located below the upper installation arm 6. The end of the lower installation arm 7 close to the upper installation arm 6 is also vertically arranged. The upper end of the lower installation arm 7 is sleeved on the lower end of the upper installation arm 6. The connection component 8 is used to connect the upper installation arm 6 and the lower installation arm 7 to achieve detachable fixed installation between the two, facilitating the disassembly and assembly between the upper installation arm 6 and the lower installation arm 7.

[0043] Further, the connection component 8 includes a connection bolt 9 and a connection nut 10. The connection bolt 9 passes through the upper installation arm 6 and the lower installation arm 7. The connection nut 10 is threadedly connected to the connection bolt 9, and the head of the connection bolt 9 and the connection nut 10 are respectively located on opposite sides of the lower installation arm 7. In this embodiment, a plurality of connection bolts 9 and connection nuts 10 are provided to improve the connection strength between the upper installation arm 6 and the lower installation arm 7.

[0044] Since the connection between the connection bolt 9 and the connection nut 10 is detachable, the detachable connection between the upper installation arm 6 and the lower installation arm 7 can be realized, and the connection is firm.

[0045] Preferably, the clamping unit 3 includes a lower clamping member 11, a hinge arm 12, an upper clamping member 13 and a clamping driving member 14. The lower clamping member 11 is installed on the inner bottom of the lower installation arm 7. The hinge arm 12 is hinged to the inner side of the upper installation arm 6 near the lower end. The clamping driving member 14 is installed between the hinge arm 12 and the connection unit 1. Both ends of the clamping driving member 14 are hinged to the hinge arm 12 and the connection unit 1 respectively. The upper clamping member 13 is installed at the bottom of the hinge arm 12. The lower clamping member 11 is located below the upper clamping member 13, and the upper clamping member 13 cooperates with the lower clamping member 11. In this embodiment, the clamping driving member 14 is a hydraulic cylinder, and the hydraulic cylinder is electrically connected to a wireless controller.

[0046] When placing a single blade horizontally on the fixture, make the length direction of the single blade as parallel as possible to the length direction of the connection unit 1, so that the lower clamping member 11 supports the single blade and makes the single blade contact the inner side of the lower installation arm 7. Then, the piston rod of the clamping driving member 14 extends to push the hinge arm 12 to move, so that the upper clamping member 13 and the lower clamping member 11 clamp the upper and lower ends of the single blade. The operator controls the force conditions of the upper clamping member 13 and the lower clamping member 11 through the wireless controller. After ensuring that the lifting requirements are met, lock the force states of the upper clamping member 13 and the lower clamping member 11.

[0047] Preferably, the lower clamping member 11 includes a lower mounting base 15, a lower clamping seat 16, and a lower clamping plate 17. The lower mounting base 15 is installed on the inner bottom of the lower mounting arm 7. The length direction of the lower mounting base 15 is parallel to the length direction of the connecting unit 1. There are two lower clamping seats 16, which are horizontally arranged along the length direction of the lower mounting base 15, and the lower clamping seats 16 are hinged to the lower mounting base 15. The number of lower clamping plates 17 on each lower clamping seat 16 is two, and the two lower clamping plates 17 are horizontally arranged along the length direction of the lower clamping seat 16, and the lower clamping plates 17 are connected to the lower clamping seats 16. It should be noted that the upper clamping member 13 includes an upper mounting base 18, an upper clamping seat 19, and an upper clamping plate 20. The structure and connection method of the upper clamping member 13 are exactly the same as those of the lower clamping member 11. The difference is that the lower clamping plate 17 of the lower clamping member 11 faces upward, while the upper clamping plate 20 of the upper clamping member 13 faces downward.

[0048] Since there are multiple lower clamping seats 16, lower clamping plates 17, upper clamping seats 19, and upper clamping plates 20, the contact area between the single blade and the lower clamping plate 17 and the upper clamping plate 20 can be increased, so as to reduce the bearing pressure and ensure that the single blade can smoothly withdraw after the hoisting is completed. In addition, since the connection method between the lower clamping seat 16 and the lower mounting base 15 is hinged, the lower clamping seat 16 has a certain range of movement. Therefore, the lower clamping plate 17 and the upper clamping plate 20 can more smoothly fit the curved surface of the single blade surface, so as to further increase the contact area and reduce the bearing pressure.

[0049] Refer to Figure 1 , preferably, balance wings 21 are hinged at both ends of the connecting unit 1, and a balance driving member 22 is installed between the balance wings 21 and the connecting unit 1. In this embodiment, the balance driving member 22 is a hydraulic cylinder, and both ends of the balance driving member 22 are hinged to the connecting unit 1 and the balance wings 21 respectively.

[0050] Before hoisting the fixture, first push the balance wings 21 to unfold through the piston rod of the balance driving member 22, so that the center of gravity of the single blade during hoisting coincides with the center of the fixture, in order to increase the smoothness of the high-altitude single blade docking.

[0051] Furthermore, the specific connection method between the connecting unit 1 and the hoisting arm 4 is hinged, and an angle driving member 23 is installed between the hoisting arm 4 and the top of the connecting unit 1. In this embodiment, the angle driving member 23 is a hydraulic cylinder, and both ends of the angle driving member 23 are hinged to the hoisting arm 4 and the top of the connecting unit 1 respectively.

[0052] During the hoisting process, for some reasons, the entire fixture may fail to maintain a stable state (such as sudden strong wind). In this case, the center of gravity of the single blade may not coincide with the center of the fixture. In this state, the piston rod of the angle driving member 23 can extend or contract to slightly adjust the inclination angle of the connecting unit 1, so that the center of gravity of the single blade coincides with the center of the fixture as much as possible.

[0053] Since the fixture of the present application is relatively heavy, when the fixture is directly placed on the ground and then the single blade is placed therein, the upper mounting arm 6 and the lower mounting arm 7 are likely to bend. Based on this, a bearing frame 24 is installed at the bottom of the connecting unit 1, and the bearing frame 24 is used to bear the connecting unit 1. After the bearing frame 24 is installed in the specified area, the fixture of the present application is first hoisted onto the bearing frame 24 by a crane, so that the top of the bearing frame 24 bears the bottom surface of the connecting unit 1, and the bottom of the lower mounting arm 7 does not contact the ground.

[0054] The implementation principle of a double C-shaped upper and lower hydraulic bearing plate type single blade fixture in an embodiment of the present application is as follows: Place the single blade on the fixture of the present application, make the length direction of the single blade as parallel as possible to the length direction of the connecting unit 1, make the lower clamping member 11 support the single blade, and make the single blade contact the inner side of the lower mounting arm 7. Then, the piston rod of the clamping driving member 14 extends, so that the upper clamping member 13 and the lower clamping member 11 clamp the upper and lower ends of the single blade. The operator controls the force conditions of the upper clamping member 13 and the lower clamping member 11 through a wireless controller. After ensuring that the hoisting requirements are met, lock the force states of the upper clamping member 13 and the lower clamping member 11. Then, lift the entire fixture by a crane and align the installation position of the single blade with the hub. After the single blade is installed and the bolts are pre-tightened, the operator cancels the clamping of the single blade by the clamping unit 3, and the lifting commander commands the crane to slowly move backward until the fixture does not interfere with the single blade.

[0055] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A double C-shaped upper and lower hydraulic bearing plate type single blade fixture, characterized in that, Comprising: A connection unit (1), serving as a basic component, which can be connected to a hoisting structure; An installation unit (2) arranged at both ends of the connection unit (1); A clamping unit (3) arranged on the installation unit (2), a "C"-shaped clamping structure is formed between the clamping unit (3) and the installation unit (2) to clamp and fix a single blade; The clamping unit (3) includes: A lower clamping member (11) arranged at the lower end of the installation unit (2); A hinge arm (12) hinged to the installation unit (2); An upper clamping member (13) connected to one end of the hinge arm (12) far from the installation unit (2); A clamping driving member (14), serving as a driving source, whose two ends are respectively hinged to the connection unit (1) and the hinge arm (12); A hoisting arm (4) is hinged on the connection unit (1), and an angle driving member (23) is hinged between the hoisting arm (4) and the connection unit (1); Balance wings (21) are hinged at both ends of the connection unit (1), and a balance driving member (22) is hinged between the balance wings (21) and the connection unit (1); The installation unit (2) includes an upper installation arm (6) connected to the connection unit (1), a lower installation arm (7) sleeved at the lower end of the upper installation arm (6), and a connection component (8) connecting the upper installation arm (6) and the lower installation arm (7); The connection component (8) includes a connection bolt (9) passing through the upper installation arm (6) and the lower installation arm (7) and a connection nut (10) threaded with the connection bolt (9); A receiving frame (24) for receiving is arranged at the bottom of the connection unit (1).

2. The double C-shaped upper and lower hydraulic pressure-bearing plate type single-blade fixture according to claim 1, wherein: The lower clamping member (11) includes a lower mounting seat (15) connected to the installation unit (2), a plurality of lower clamping seats (16) hinged to the lower mounting seat (15), and a plurality of lower clamping plates (17) arranged on the lower clamping seats (16), and the plurality of lower clamping seats (16) and lower clamping plates (17) are all arranged along the length direction of the connection unit (1).

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