CN114380188A - Offshore wind turbine blade buffering clamp - Google Patents
Offshore wind turbine blade buffering clamp Download PDFInfo
- Publication number
- CN114380188A CN114380188A CN202210041429.XA CN202210041429A CN114380188A CN 114380188 A CN114380188 A CN 114380188A CN 202210041429 A CN202210041429 A CN 202210041429A CN 114380188 A CN114380188 A CN 114380188A
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- CN
- China
- Prior art keywords
- blade
- clamp
- clamping
- wind turbine
- blades
- 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
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Classifications
-
- 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
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to a hoisting buffer clamp for blades of an offshore wind turbine, which comprises a clamping device, a deflection device and a buffer device, wherein the clamping device is used for clamping and fixing the blades of the wind turbine at a hoisting point position, so that the blades are tightly contacted with the clamp in the hoisting process and do not generate relative displacement, the deflection device is used for adapting to multi-angle and non-directional shaking in the blade hoisting process, the clamping device is allowed to have deflection in a certain range under the actions of wind load, eccentric load, installation disturbance and the like, the buffer device is used for relieving impact acting force generated by the deflection device in the hoisting process, the buffer device generates elastic deformation to play a role in absorbing kinetic energy, the displacement rate of the blades is prevented from being overlarge, and the whole clamp is enabled to keep higher stability under the action of external load.
Description
Technical Field
The invention relates to the technical field of hoisting construction of offshore wind turbine generators, in particular to a buffering clamp for an offshore wind turbine blade.
Background
The blade hoisting operation of the offshore wind turbine is usually completed on a large platform ship, the wind turbine needs to be hoisted by a plurality of hoisting devices in cooperation, the construction operation surface of the installation platform ship is limited, a blade clamp with a proper size is selected to complete the hoisting operation of the offshore wind turbine, the hoisting operation of the offshore wind turbine is very important for the construction work of an offshore wind farm, and meanwhile, in the blade hoisting process, the shaking caused by wind load, eccentric load, installation disturbance, installation operation and the like needs to be overcome. Therefore, the blade clamp is required to have stability under an external load in addition to the restriction of the size of the space.
The lifting appliance specification and size adopted when the traditional offshore wind turbine blade lifting operation generally adopts the clamp and lifts other components of the wind turbine generator set are consistent, although the time for replacing the lifting appliance can be reduced, the size of the lifting appliance is very large, limited space resources on a platform ship are occupied, and the lifting appliance can not adapt to the small-range displacement caused by external load and brings great inconvenience to the subsequent blade mounting operation. Therefore, the structure of the blade clamp equipment needs to be optimized, the space size of the blade clamp equipment is reduced, the clamp has certain displacement deformation adaptability, and the stability of the blade in the hoisting process is improved.
Disclosure of Invention
In order to solve the technical problems, the invention provides a buffer clamp for an offshore wind turbine blade, which is used for saving precious space resources of an offshore operation platform, providing a certain buffer effect for the shaking of the blade caused by environmental load and installation disturbance, and ensuring the safety and stability of the blade and the clamp in the whole hoisting process.
The invention relates to a buffering clamp for a blade of an offshore wind turbine, which comprises a clamping device, a deflection device and a buffering device, wherein the clamping device is used for clamping and fixing the blade of the wind turbine at a hoisting point position, so that the blade is in close contact with the clamping device in the hoisting process and does not generate relative displacement, the deflection device is used for adapting to multi-angle and non-directional shaking in the hoisting process of the blade, the clamping device is allowed to have deflection in a certain range under the actions of wind load, eccentric load, installation disturbance and the like, the buffering device is used for relieving impact acting force generated by the deflection device in the hoisting process, the buffering device generates elastic deformation to play a role in absorbing kinetic energy, the displacement rate of the blade is prevented from being too high, and the whole clamping device is enabled to keep higher stability under the action of external load.
The clamping device comprises a clamping plate, a lateral baffle, a rubber pad and a screw rod. The clamping plates are used for clamping the fan blade at the lifting point position of the blade through an upper clamping plate and a lower clamping plate to limit the displacement of the fan blade in the vertical direction, the lateral baffle is used for further fixing the position of the blade between the clamping plates, the position of the lateral baffle is adjusted according to the width of the fan blade to limit the displacement of the blade in the horizontal direction, the screw is used for connecting the upper clamping plate and the lower clamping plate, after the fan blade is correctly placed between the clamping plates, the screw is screwed down to fix the position of the blade, and the rubber pad is used for protecting the surface coating of the blade from being abraded by the clamping plates and the baffle.
The deflection device comprises a cross coupling shaft, a shaft seat and a shaft shell. The cross coupling is used for connecting an upper shaft shell and a lower shaft seat, and can freely rotate along the longitudinal direction or the axial direction, so that the multi-angle and non-directional rotation of the clamp are realized, the shaft seat is used for providing supporting force for the cross coupling and connecting the lower clamp with the deflection device, so that the cross coupling can rotate along the direction vertical to the blades, the shaft shell is used for connecting an upper lifting lug with the deflection device, so that the cross coupling can rotate along the direction parallel to the blades, and the rotation of the blades in the vertical direction and the horizontal direction can be realized through the combination of the cross coupling, the shaft seat and the shaft shell.
The buffer device comprises a spring and an elastic telescopic shaft, wherein the spring is used for converting kinetic energy of the clamp into elastic potential energy and slowing down the displacement rate of the whole deflection device, the elastic telescopic shaft is used for dissipating the elastic potential energy stored by the spring and the elastic deformation of the spring, and the kinetic energy is consumed through friction between the telescopic shaft and shaft sleeves at two ends, so that the buffer effect in the process of clamping the blades can be realized, and the whole clamp is ensured to be kept stable and stable under the action of external load
Compared with the prior art, the invention has the beneficial effects that: the buffer clamp for the blades of the offshore wind turbine is reasonable in structural design, the clamping device is used for clamping and fixing the blades of the wind turbine at a lifting point, the blades are in close contact with the clamp in the lifting process, relative displacement is not generated, the deflection device is used for adapting to multi-angle and non-directional shaking generated in the lifting process of the blades, the clamping device is allowed to have deflection in a certain range under the action of wind load, eccentric load, mounting disturbance and the like, the buffer device is used for reducing impact acting force generated by the deflection device in the lifting process, the buffer device generates elastic deformation to play a role in absorbing kinetic energy, the displacement rate of the blades is prevented from being too high, and the whole clamp is enabled to keep high stability under the action of external load.
Drawings
FIG. 1 is a schematic structural diagram of an offshore wind turbine blade damping fixture according to an embodiment of the present invention;
fig. 2 is a reference diagram of a use state of a buffer clamp for an offshore wind turbine blade according to an embodiment of the present invention.
In the figure:
1. a splint; 2. a lateral baffle; 3. a rubber pad; 4. a screw; 5. a spring; 6. an elastic telescopic shaft; 7. a cross coupling; 8. a shaft seat; 9. a shaft housing; 10. and (7) lifting lugs.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in figure 1, the invention relates to an offshore wind turbine blade buffering clamp in the technical field of hoisting of offshore wind turbine generators, and the clamp is provided with a clamping device, a deflection device, a buffering device and a lifting lug. The clamping device comprises an upper clamping plate 1, a lower clamping plate 2, a lateral baffle 2, a rubber pad 3 and a screw rod 4, the fan blade is clamped through the upper clamping plate, the lower clamping plate and the screw rod, and the rubber pad is used for protecting the blade from being abraded by the clamping plates and the baffle; the buffer device comprises a spring 5 and an elastic telescopic shaft 6, and is used for consuming kinetic energy generated in the hoisting process of the clamp and playing a certain buffer role; the deflection device comprises a cross coupling shaft 7, a shaft seat 8 and a shaft shell 9, and is used for realizing the rotary displacement of the blade in the vertical and horizontal directions; the lifting lug 10 is used for connecting a crane lifting hook and a clamp.
As shown in fig. 2, the specific working process of the offshore wind turbine blade buffering clamp is as follows: 1) the lower clamping plate is placed at the bottom of the position of the blade lifting point, the position of the lateral baffle 3 is adjusted until the width of the lifted blade is reached, and the rubber pads on the inner side of the baffle can protect the blade from being abraded by the baffle. 2) The crane lifts the upper clamp to the upper side of the lower clamp plate, so that the screw hole of the upper clamp plate is aligned with the screw hole of the lower clamp plate, the screw is inserted, the nut is screwed, and the blade is stabilized by the clamp. 3) The fixture is installed at another hoisting point position of the blade in the same manner as described above. 4) Checking the position of the hoisting point and whether the installation is firm. 5) And finishing the installation of the buffer clamp and starting the hoisting of the fan blade.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that they have been presented by way of example only, and not limitation, and that various changes and modifications can be made without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides an offshore wind turbine blade hoist and mount buffering anchor clamps which characterized in that includes: the clamping device is used for clamping and fixing the fan blade at a lifting point position, so that the blade is in close contact with the clamp in the lifting process and does not generate relative displacement, the deflection device is used for adapting to multi-angle and non-directional shaking in the blade lifting process, the clamping device is allowed to have deflection in a certain range under the effects of wind load, eccentric load, installation disturbance and the like, the buffer device is used for relieving impact acting force generated by the deflection device in the lifting process, the buffer device generates elastic deformation to play a role in absorbing kinetic energy, the displacement rate of the blade is prevented from being too large, and the whole clamp keeps high stability under the action of external load.
2. The offshore wind turbine blade hoisting buffer clamp according to claim 1, characterized in that: the clamping device comprises a clamping plate, a lateral baffle, a rubber pad and a screw rod. The clamping plates are used for clamping the fan blade at the lifting point position of the blade through an upper clamping plate and a lower clamping plate to limit the displacement of the fan blade in the vertical direction, the lateral baffle is used for further fixing the position of the blade between the clamping plates, the position of the lateral baffle is adjusted according to the width of the fan blade to limit the displacement of the blade in the horizontal direction, the screw is used for connecting the upper clamping plate and the lower clamping plate, after the fan blade is correctly placed between the clamping plates, the screw is screwed down to fix the position of the blade, and the rubber pad is used for protecting the surface coating of the blade from being abraded by the clamping plates and the baffle.
3. The offshore wind turbine blade hoisting buffer clamp according to claim 1, characterized in that: the deflection device comprises a cross coupling shaft, a shaft seat and a shaft shell. The cross coupling is used for connecting an upper shaft shell and a lower shaft seat, and can freely rotate along the longitudinal direction or the axial direction, so that the multi-angle and non-directional rotation of the clamp are realized, the shaft seat is used for providing supporting force for the cross coupling and connecting the lower clamp with the deflection device, so that the cross coupling can rotate along the direction vertical to the blades, the shaft shell is used for connecting an upper lifting lug with the deflection device, so that the cross coupling can rotate along the direction parallel to the blades, and the rotation of the blades in the vertical direction and the horizontal direction can be realized through the combination of the cross coupling, the shaft seat and the shaft shell.
4. The offshore wind turbine blade hoisting buffer clamp according to claim 1, characterized in that: the damping device comprises a spring and an elastic telescopic shaft, the spring is used for converting kinetic energy of the clamp into elastic potential energy and slowing down the displacement rate of the whole deflection device, the elastic telescopic shaft is used for dissipating the elastic potential energy stored by the spring and elastic deformation of the spring, and the kinetic energy is consumed through friction between the telescopic shaft and shaft sleeves at two ends, so that the damping effect in the process of clamping the blades can be realized, and the whole clamp is ensured to be kept stable under the action of external load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210041429.XA CN114380188A (en) | 2022-01-14 | 2022-01-14 | Offshore wind turbine blade buffering clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210041429.XA CN114380188A (en) | 2022-01-14 | 2022-01-14 | Offshore wind turbine blade buffering clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114380188A true CN114380188A (en) | 2022-04-22 |
Family
ID=81200956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210041429.XA Pending CN114380188A (en) | 2022-01-14 | 2022-01-14 | Offshore wind turbine blade buffering clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114380188A (en) |
-
2022
- 2022-01-14 CN CN202210041429.XA patent/CN114380188A/en active Pending
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