Blade demoulding and hoisting clamp for wind generating set
The U-shaped bracket with a V-shaped lifting arm and rubber pads addresses the issue of unstable gripping during wind turbine blade removal, ensuring secure and safe lifting by leveraging lever principles.
Patent Information
- Application Number
- CN202422472576.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-14
AI Technical Summary
During the release of the blades of existing wind turbine sets, the spreader is prone to fall off, resulting in damage to the blades and posing safety hazards.
Design a wind turbine blade release hoisting fixture, including U-shaped bracket, lifting bend arm, movable pressure plate and rubber plate, and use the lever principle to increase the grip force to ensure that the spreader holds the blade firmly.
Effectively prevent the spreader from slipping, increasing the safety of the lifting process and avoiding damage to the blades.
Smart Images
Figure CN223102507U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hoisting devices, in particular to a demoulding and hoisting fixture for blades of a wind turbine generator set. Background Art
[0002] As the main component of wind turbines, blades have high production costs. They are made of glass fiber and resin infusion. After mold forming, they need to be demolded. Currently, demolding requires lifting the tip of the blade with a crowbar and coordinating with a crane and a sling to lift the root end of the blade little by little. There are the following disadvantages: 1. There is no fulcrum at the root end of the blade, and the hoist can easily fall off during the lifting process, causing damage to the blade. 2. After the hoist falls off, the impact force caused by the heavy weight of the blade is large, and the hoist can easily be bounced off, posing a safety hazard. Utility Model Content
[0003] The utility model provides a demoulding and hoisting fixture for blades of a wind power generator set.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A wind turbine blade demoulding and lifting fixture comprises the root end of the blade. A bracket is installed at the top of the root end of the blade. The bracket is U-shaped and plugged into the top of the root end of the blade. A mounting groove is provided on the top of the bracket. A lifting arm is rotatably installed in the mounting groove, and a movable pressure plate is rotatably installed on the lifting arm.
[0006] A further preferred solution of the utility model is that the opening end of the bracket faces the tip of the blade, a rubber plate is provided at the bottom of the inner wall of the bracket, and the bottom of the inner wall of the bracket is connected to the inner wall at the top of the root end of the blade through the rubber plate.
[0007] A further preferred solution of the utility model is that the lifting arm is V-shaped, and connecting holes are provided at both ends of the lifting arm.
[0008] A further preferred solution of the utility model is that one of the connection holes of the lifting arm is rotatably connected to the top of the movable pressing plate, and the other connection hole of the lifting arm is rotatably connected to the lifting belt.
[0009] A further preferred solution of the utility model is that a second rubber plate is arranged on the lower surface of the movable pressing plate, and the movable pressing plate is connected to the outer wall of the top of the root end of the blade through the second rubber plate.
[0010] The utility model has the following benefits:
[0011] The utility model hoists the root end of the blade by adding a hoisting bent arm, a movable pressing plate, a rubber plate I, a rubber plate II and a bracket to the spreader. The grabbing force for the root end of the blade is increased through the lever principle of the hoisting bent arm, so that the spreader firmly grabs the blade, effectively preventing the spreader from slipping during hoisting and causing damage to the blade, thus enhancing the safety. Brief Description of the Drawings
[0012] Figure 1 It is the front view structural schematic diagram of the utility model;
[0013] Figure 2 It is the enlarged structural schematic diagram of part A of the utility model;
[0014] In the figure: 1 blade, 2 bracket, 3 hoisting bent arm, 4 movable pressing plate, 5 sling, 6 rubber plate I, 7 rubber plate II. Detailed Embodiment
[0015] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments.
[0016] According to Figure 1-2 As shown, a demolding hoisting fixture for a blade 1 of a wind turbine generator set includes the root end of the blade 1. A bracket 2 is installed at the top of the root end of the blade 1. The bracket 2 is in a U shape and is inserted into the top of the root end of the blade 1. An installation groove is opened at the top of the bracket 2, and a hoisting bent arm 3 is rotatably installed in the installation groove. A movable pressing plate 4 is rotatably installed on the hoisting bent arm 3.
[0017] The open end of the bracket 2 faces the tip end of the blade 1. A rubber plate I 6 is arranged at the bottom of the inner wall of the bracket 2, and the bottom of the inner wall of the bracket 2 is connected to the inner wall of the top of the root end of the blade 1 through the rubber plate I 6.
[0018] The hoisting bent arm 3 is in a V shape, and connection holes are opened at both ends of the hoisting bent arm 3.
[0019] One of the connection holes of the hoisting bent arm 3 is rotatably connected to the top of the movable pressing plate 4, and the other connection hole of the hoisting bent arm 3 is rotatably connected to the sling 5.
[0020] A rubber plate II 7 is arranged on the lower surface of the movable pressing plate 4, and the movable pressing plate 4 is connected to the outer wall of the top of the root end of the blade 1 through the rubber plate II 7.
[0021] Working principle: When it is really necessary to lift the blade 1 for demolding the blade 1, insert the bracket 2 at the top of the root end of the blade 1, control one sling 5, and the sling 5 pulls the hoisting bent arm 3, so that the hoisting bent arm 3 rotates in the installation groove, and the hoisting bent arm 3 further presses the movable pressure plate 4. The pressure on the movable pressure plate 4 combined with the friction force on the rubber plate 1 6 and the rubber plate 2 7 can ensure that the lifting tool will not slip off. At the same time, control the other sling 5 to lift the tip of the blade 1 to achieve the safe demolding and hoisting of the blade 1.
[0022] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.
Claims
1. A demolding and hoisting fixture for a blade (1) of a wind turbine generator, characterized in that: It includes the root end of the blade (1). A bracket (2) is installed at the top of the root end of the blade (1). The bracket (2) is U-shaped and is inserted into the top of the root end of the blade (1). An installation groove is provided at the top of the bracket (2), and a hoisting bent arm (3) is rotatably installed in the installation groove. A movable pressing plate (4) is rotatably installed on the hoisting bent arm (3).
2. The demoulding and hoisting fixture for the blade (1) of a wind turbine generator set according to claim 1, characterized in that: The open end of the bracket (2) faces the tip of the blade (1). A first rubber plate (6) is provided at the bottom of the inner wall of the bracket (2), and the bottom of the inner wall of the bracket (2) is connected to the inner wall of the top of the root end of the blade (1) through the first rubber plate (6).
3. A demolding and hoisting fixture for a wind turbine blade (1) according to claim 1, characterized in that: The hoisting bent arm (3) is V-shaped, and connection holes are provided at both ends of the hoisting bent arm (3).
4. A demolding and hoisting fixture for a wind turbine blade (1) according to claim 3, characterized in that: One of the connection holes of the hoisting bent arm (3) is rotatably connected to the top of the movable pressing plate (4), and the other connection hole of the hoisting bent arm (3) is rotatably connected to the sling (5).
5. A demolding and hoisting fixture for a wind turbine blade (1) according to claim 4, characterized in that: A second rubber plate (7) is provided on the lower surface of the movable pressing plate (4), and the movable pressing plate (4) is connected to the outer wall of the top of the root end of the blade (1) through the second rubber plate (7).