Quick dismounting and mounting equipment for wind power blade test loading clamp

Abstract

The embodiment of the utility model provides a quick dismounting and mounting device for a wind power blade test loading clamp, which comprises a cross beam, a balance suspension structure is fixedly connected onto the cross beam and is used for lifting the cross beam in a balanced manner, a clamp fixing mechanism is further mounted on the cross beam, and the clamp fixing mechanism is used for fixing the cross beam. And the clamp fixing mechanism is used for fixing the clamp when the loading clamp is disassembled and assembled. According to the technical scheme, the clamp is fixed in the air in a cross beam suspension mode, so that the clamp is mounted or dismounted in the air, manual participation is greatly reduced, the rapid dismounting and mounting equipment has the advantages of high efficiency and high safety, in addition, the number of cranes during dismounting and mounting of the loading clamp is reduced, and the working efficiency is improved. And the test cost is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine blade testing technology, and in particular relates to a quick assembly and disassembly device for a loading fixture used in wind turbine blade testing. Background Technology

[0002] In existing technologies, the loading method for wind turbine blade testing rigs is downward loading. During the loading process, the testing mechanism applies loads to the blade using clamps, completing the static limit test by downward loading. The test bending moment includes the blade's own weight, the bending moment generated by the clamps, and the bending moment generated by the loading force. However, when designing test schemes, it is necessary to reduce or increase the overload situation in a certain test direction, requiring the removal or installation of clamps at certain loading positions on the blade during testing. Currently, the method used in China is to first remove the blade from the test rig, install or remove clamps at certain loading positions on the ground, and then reinstall the blade on the test rig. This process, involving blade removal, clamp removal or installation, and blade installation, all consume a significant amount of time, leading to extended testing cycles and low testing efficiency. Some laboratories use an aerial clamp removal and installation method, requiring workers to operate at a height of tens of meters with the assistance of 2-3 large lifting machines, which is inefficient and poses significant safety risks. Utility Model Content

[0003] In view of the above-mentioned problems existing in the prior art, the purpose of this utility model embodiment is to provide a quick assembly and disassembly device for a wind turbine blade testing loading fixture.

[0004] The technical solution adopted in this embodiment of the utility model is a quick disassembly and assembly device for a loading fixture for testing wind turbine blades, including a crossbeam, on which a balanced suspension structure is fixedly connected. The balanced suspension structure is used to lift the crossbeam in a balanced manner. A fixture fixing mechanism is also installed on the crossbeam, which is used to fix the fixture during the disassembly and assembly of the loading fixture.

[0005] Furthermore, the clamp fixing mechanism includes a movable part and a fixed part. The movable part is movably mounted on the crossbeam, and the fixed part is fixedly connected to the movable part and suspended below the crossbeam.

[0006] Furthermore, the moving part includes a slide rail and a traveling trolley. The slide rail is arranged on the crossbeam and along the length of the crossbeam. The traveling trolley cooperates with the slide rail so that the traveling trolley can travel on the slide rail. The fixing part is fixed on the traveling trolley.

[0007] Furthermore, the fixing part includes an electromagnetic suction arm, the top end of which is connected to the moving part, and the electromagnetic suction arm is used to fix the clamp by electromagnetic attraction.

[0008] Furthermore, the top end of the electromagnetic suction arm is rotatably connected to the moving part, and a plate-shaped protrusion is provided on one side of the electromagnetic suction arm, which is used to adhere and adsorb with the clamp.

[0009] Furthermore, the fixing part also includes a suction arm motor, which is fixed on the moving part and drives the electromagnetic suction arm to rotate.

[0010] Furthermore, the fixed part also includes an electric hoist, which is fixed to the movable part.

[0011] Furthermore, the balanced suspension structure includes multiple lugs, and lugs are fixedly connected to the top four corners of the crossbeam.

[0012] Furthermore, the top center of the crossbeam has a protrusion that enhances the strength of the crossbeam and also serves as a counterweight for the balanced suspension structure.

[0013] Compared with existing technologies, the proposed quick assembly and disassembly device for wind turbine blade testing loading fixtures uses a beam suspension method to fix the fixtures in the air, thereby enabling the installation or disassembly of the fixtures in the air. This significantly reduces manual intervention and has the advantages of high efficiency and high safety. In addition, it reduces the number of cranes required for assembling and disassembling the loading fixtures, thus greatly reducing the testing cost.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit the present invention.

[0015] The overview of various implementations or examples of the technology described in this utility model is not a complete disclosure of the full scope or all features of the disclosed technology. Attached Figure Description

[0016] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to explain embodiments of the utility model. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0017] Figure 1 This is a schematic diagram of an embodiment of the present utility model. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0021] See Figure 1 This utility model provides a rapid assembly and disassembly device for a loading fixture used in wind turbine blade testing. It includes a crossbeam 1, on which a balanced suspension structure is fixedly connected. The balanced suspension structure is used to balance and lift the crossbeam 1. A fixture fixing mechanism is also installed on the crossbeam 1 to fix the fixture during assembly and disassembly. This technical solution uses the crossbeam 1 to suspend the fixture in mid-air, enabling installation or disassembly of the fixture in the air. This significantly reduces manual intervention and offers advantages such as high efficiency and safety. Furthermore, it reduces the number of cranes required for assembling and disassembling the loading fixture, greatly lowering testing costs.

[0022] The clamp fixing mechanism includes a movable part and a fixed part. The movable part is movably mounted on the crossbeam 1, and the fixed part is fixedly connected to the movable part and suspended below the crossbeam 1. During use, the fixed part moves with the movable part, thereby facilitating position adjustment when fixing the clamp and simplifying the clamp fixing operation.

[0023] In some embodiments, the moving part includes a slide rail 2 and a traveling trolley 3. The slide rail 2 is disposed on the crossbeam 1 and is arranged along the length of the crossbeam 1. The traveling trolley 3 cooperates with the slide rail 2 to allow the traveling trolley 3 to move on the slide rail 2. The fixing part is fixed to the traveling trolley 3. The traveling trolley 3 drives the fixing part. In use, the traveling trolley 3 can be a remote-controlled electric trolley, which can further facilitate the fixing operation of the fixture. The traveling trolley 3 can be electrically controlled or remotely controlled to move on the upper slide rail 2 of the crossbeam 1. Specifically, there can be one on each side of the crossbeam 1 and they are symmetrically distributed. The main reason for setting up the traveling trolley 3 and the slide rail 2 is that, generally speaking, the cross-sectional dimensions of the blade from the blade root to the blade tip are not fixed. Test fixtures at different cross-sectional positions have different dimensions, so it is necessary to adjust the distance between the traveling trolley 3 and the blade accordingly to cooperate in fixing the test fixture.

[0024] In some embodiments, the fixing part includes an electromagnetic suction arm 4, the top end of which is connected to the moving part. The electromagnetic suction arm 4 is used to fix the clamp by electromagnetic attraction. When fixing the clamp, the electromagnetic suction arm 4 directly contacts the clamp, and fixation is achieved by electromagnetic attraction.

[0025] In some embodiments, the top end of the electromagnetic suction arm 4 is rotatably connected to a moving part. A plate-shaped protrusion 5 is provided on one side of the electromagnetic suction arm 4, which is used to adhere and attract with the clamp. When fixing the clamp, the plate-shaped protrusion 5 on the electromagnetic suction arm 4 directly contacts the clamp, forming a fixed position using electromagnetic attraction. Furthermore, the plate-shaped protrusion 5 is contoured to the clamp, facilitating adherence and attraction. The rotatable connection of the top end of the electromagnetic suction arm 4 to the moving part gives the electromagnetic suction arm 4 a certain degree of rotational mobility, facilitating operation by allowing the plate-shaped protrusion 5 on the electromagnetic suction arm 4 to directly contact the clamp.

[0026] In some embodiments, the fixing part further includes a suction arm motor 6, which is fixed to the moving part and drives the electromagnetic suction arm 4 to rotate. Using the suction arm motor 6 to drive the electromagnetic suction arm 4 further facilitates the fixing operation of the clamp.

[0027] The fixed part also includes an electric hoist 7, which is fixed to the movable part.

[0028] The balanced suspension structure includes multiple lifting lugs 8, and each of the four top corners of the crossbeam 1 is fixedly connected to a lifting lug 8. The crane hook lifts the crossbeam 1 by connecting the lifting lugs 8 through multiple steel wire ropes. When lifted to a high altitude, the electric hoist 7 and the electromagnetic suction arm 4 remain below the crossbeam 1.

[0029] The top center of the crossbeam 1 has a protrusion 9, which is used to enhance the strength of the crossbeam 1 and also serves as a counterweight for the balancing suspension structure. As a counterweight for the balancing suspension structure, the protrusion 9, located in the middle of the crossbeam 1, improves stability during suspension.

[0030] The electromagnetic suction arm 4 is mainly used in applications involving oscillation where the blade chord length forms an acute angle with the horizontal plane. One electromagnetic suction arm 4 is installed on each of the traveling trolleys 3 on either side of the crossbeam 1. First, the crossbeam 1 is lifted directly above the fixture to be disassembled. Then, the angle of the electromagnetic suction arm 4 is adjusted by controlling the suction arm motor 6 until the electromagnetic suction arm 4 is nearly parallel to the fixture surface, locking the motor. Next, the fixture is moved downwards until the electromagnetic suction arm 4 is parallel to the fixture. The traveling trolley 3 is then controlled to move inwards until the electromagnetic suction arm 4 is close to the fixture. Then, the suction arm motor 6 is remotely adjusted to further engage the arm surface of the electromagnetic suction arm 4 with the fixture. Simultaneously, after power is applied, the electromagnetic suction arm 4 and the fixture are magnetically connected. Once the electromagnetic suction arm 4 is firmly attached to the blade fixture, the fixture bolts are removed to separate the blade's windward side (PS side) from the leeward side (SS side) of the fixture. Control the suction arm motor 6 to slightly move the two electromagnetic suction arms 4 apart, and the crane will lift and lower the quick assembly / disassembly equipment from one side. Once the quick assembly / disassembly equipment reaches the target location, the electromagnetic suction arms 4 can be demagnetized to release the clamp, thus completing the disassembly of the clamp in the air.

[0031] The electric hoist 7 is mainly used in applications involving waving motions where the blade chord length forms an acute angle with the horizontal plane. Two electric hoists 7 are installed on each of the traveling trolleys 3 on either side of the crossbeam 1. During operation, the crossbeam 1 is first hoisted directly above the fixture to be disassembled or assembled. The wire rope hooks of the electric hoists 7 on both sides are then connected to the fixture's hanging holes on both sides, and the wire ropes are tightened. Next, the bolts securing the iron fixtures on both sides are removed to loosen the fixtures on the windward (PS) and leeward (SS) sides of the blades. The electric hoist connected to the lower fixture is controlled to extend its rope until the fixture is gradually lowered to the ground or into a container. At this point, the fixture on that side is released, and the wire rope of the electric hoist 7 is retrieved. The crane is then used to transfer the upper fixture to the ground or a specific location, thus completing the disassembly of the test fixture.

[0032] For blade clamps with a special angle between 0 and 90 degrees, the electric hoist 7 and electromagnetic suction arm 4 need to work together. The specific operation is as follows: First, connect the electric hoists 7 on both sides to the bolt holes on both sides of the clamp. Then tighten the wire rope. Next, adjust the angle of the electromagnetic suction arm 4 and the position of the traveling trolley 3, gradually controlling the electromagnetic suction arm 4 to approach the iron clamp and activating the electromagnetic attraction to make the electromagnetic suction arm 4 and clamp tightly adhere. Remove the clamp bolts to separate the PS surface and SS surface of the blade clamp. Control the suction arm motor 6 to open the two electromagnetic suction arms 4. The crane will then lift and lower this quick disassembly / assembly equipment from one side. Once the equipment reaches the target location, demagnetize the electromagnetic suction arms 4 to release the clamp, thus completing the disassembly of the clamp in mid-air.

[0033] The above description is intended to be illustrative and not restrictive. Those skilled in the art can make variations, modifications, substitutions, and alterations to the above embodiments within the scope of this disclosure. Moreover, the above examples (or one or more of them) can be used in combination with each other, and these embodiments can be combined with each other in various combinations or arrangements.

Claims

1. A quick-assembly and disassembly device for a loading fixture used in wind turbine blade testing, comprising a crossbeam (1), characterized in that, A balanced suspension structure is fixedly connected to the crossbeam (1). The balanced suspension structure is used to lift the crossbeam (1) in a balanced manner. A clamp fixing mechanism is also installed on the crossbeam (1). The clamp fixing mechanism is used to fix the clamp when the loading clamp is disassembled. The clamp fixing mechanism includes a movable part and a fixed part. The movable part is movably mounted on the crossbeam (1), and the fixed part is fixedly connected to the movable part and suspended below the crossbeam (1). The fixing part includes an electromagnetic suction arm (4), the top end of which is connected to the moving part. The electromagnetic suction arm (4) is used to fix the clamp by electromagnetic adsorption.

2. The quick-assembly and disassembly device for a wind turbine blade testing loading fixture according to claim 1, characterized in that, The moving part includes a slide rail (2) and a traveling trolley (3). The slide rail (2) is set on the crossbeam (1) and is set along the length of the crossbeam (1). The traveling trolley (3) cooperates with the slide rail (2) so that the traveling trolley (3) moves on the slide rail (2). The fixing part is fixed on the traveling trolley (3).

3. The quick-assembly and disassembly device for a wind turbine blade testing loading fixture according to claim 1, characterized in that, The top end of the electromagnetic suction arm (4) is rotatably connected to the moving part. A plate-shaped protrusion (5) is provided on one side of the electromagnetic suction arm (4), and the plate-shaped protrusion (5) is used to adhere and adsorb with the clamp.

4. A quick-assembly and disassembly device for a wind turbine blade testing loading fixture according to claim 3, characterized in that, The fixed part also includes a suction arm motor (6), which is fixed on the moving part and drives the electromagnetic suction arm (4) to rotate.

5. A quick-assembly and disassembly device for a wind turbine blade testing loading fixture according to claim 4, characterized in that, The fixed part also includes an electric hoist (7), which is fixed on the movable part.

6. A quick-assembly and disassembly device for a wind turbine blade testing loading fixture according to claim 1, characterized in that, The balanced suspension structure includes multiple lugs (8), and lugs (8) are fixedly connected to the top four corners of the crossbeam (1).

7. A quick-assembly and disassembly device for a wind turbine blade testing loading fixture according to claim 1, characterized in that, The top center of the crossbeam (1) has a protrusion (9) which is used to enhance the strength of the crossbeam (1) and is also configured as a counterweight for the balance suspension structure.

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