Lead connecting structure for lightning protection of offshore wind power blade

Abstract

The invention discloses a lead connecting structure for lightning protection of an offshore wind power blade, and belongs to the technical field of wind power blades, the lead connecting structure for lightning protection of the offshore wind power blade comprises a blade body, a placement groove is formed in the blade body, and a lightning protection guide pipe is arranged in the placement groove; a dismounting assembly is arranged on the outer side of the lightning protection guide pipe and comprises a circular groove, a pushing plate is arranged on the inner side of the circular groove, a sliding plate is fixedly connected to the rear end of the pushing plate, a first sliding groove is formed in the left side of the blade body, and a first triangular plate is fixedly connected to the rear end of the sliding plate. The left side of the first triangular plate is fixedly connected with a fixing plate. Through the arrangement of the dismounting assembly, the lightning protection guide pipe can be rapidly fixed or dismounted in the blade body, and the phenomenon that the interior of the blade body is clamped when the lightning protection guide pipe is taken out or mounted can be effectively prevented.

Description

Technical Field

[0001] The present application relates to the technical field of wind turbine blades, and in particular to a wire connection structure for lightning protection of offshore wind turbine blades. Background Art

[0002] The conductor connection structure for lightning protection of offshore wind turbine blades mainly involves a combination of a series of complex electrical engineering and mechanical engineering technologies. This structure usually includes a lightning receiving system, which is mainly composed of conductors with good conductivity. These conductors are installed at specific positions of wind turbine blades, such as the tip of the blade or on the airfoil at a specific angle. These conductors can effectively receive and conduct lightning. Secondly, the conductor material and the material selection of lightning protection conductors are crucial. Highly conductive metal materials such as copper or aluminum are usually used. These materials have excellent conductivity and can quickly conduct lightning from the blades to the grounding system. In addition to the lightning receiving system and conductor materials, it also includes some connectors and joints, grounding systems, insulation layers and protective covers, control systems and monitoring systems, etc. The conductor connection structure for lightning protection of offshore wind turbine blades is a comprehensive electrical and mechanical system that requires the coordinated work of multiple parts to ensure its effectiveness and reliability.

[0003] At present, the wire connection structure used for lightning protection of offshore wind turbine blades is prone to getting stuck when the embedded pipe inside is taken out or installed, which affects the installation or removal of the embedded pipe. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a wire connection structure for lightning protection of offshore wind turbine blades, which solves the problems raised in the above-mentioned background technology. To achieve the above purpose, the present invention is implemented through the following technical scheme: A wire connection structure for lightning protection of offshore wind turbine blades, comprising a blade body, a placement groove is provided inside the blade body, a lightning protection conduit is provided inside the placement groove, a disassembly component is provided on the outside of the lightning protection conduit, the disassembly component comprises a circular groove, a push plate is provided on the inner side of the circular groove, a slide plate is fixedly connected to the rear end of the push plate, a first slide groove is provided inside the left side of the blade body, a first triangular plate is fixedly connected to the rear end of the slide plate, a fixed plate is fixedly connected to the left side of the first triangular plate, a first spring is fixedly connected to the left side of the fixed plate, and the first triangular plate The rear end of the slide is slidably connected to the first roller, the rear end outer wall of the first roller is hinged to the second triangular plate, the right rear end of the slide is fixedly connected to a connecting plate, the rear right side of the connecting plate is fixedly connected to the first hydraulic rod, the right end of the first hydraulic rod is provided with a hydraulic bin, the left inner wall of the hydraulic bin is slidably connected to the right outer wall of the first hydraulic rod, the right inner wall of the hydraulic bin is slidably connected to the second hydraulic rod, the rear end inner wall of the second hydraulic rod is hinged to the second roller, the inner wall of the second roller is slidably connected to the front end outer wall of the second triangular plate, the right front end of the second triangular plate is fixedly connected to a second spring, and the bottom of the hydraulic bin is fixedly connected to a support block.

[0005] Preferably, the slide plate is slidably connected to the inside of the first slide groove, and the bottom of the support block is fixedly connected to the bottom inner wall of the blade body.

[0006] Preferably, one end of the first spring away from the fixing plate is fixedly connected to the rear end inner wall of the blade body, and one end of the second spring away from the second triangular plate is fixedly connected to the front end inner wall of the blade body.

[0007] Preferably, a fixing component is provided at the rear end of the second triangular plate, and the fixing component includes a support frame, the rear end of the support frame is fixedly connected to a side plate, a circular plate is provided on the inner side of the side plate, the rear end of the circular plate is fixedly connected to a rack, both ends of the rack are meshed with gears, a second slide groove is provided at the rear end of the rack, a limiting rod is slidably connected in the second slide groove, the rear end of the gear is hinged to the side plate, and a clamp is fixedly connected to the middle of one end of the gear away from the side plate.

[0008] Preferably, the front end of the support frame is fixedly connected to the rear end of the second triangular plate, and the end of the limiting rod away from the second sliding groove is fixedly connected to the top of the side plate.

[0009] Preferably, the lightning protection conduit is arranged on the inner side of the clamp, and the rear end of the circular plate is slidably connected to the front end outer wall of the lightning protection conduit.

[0010] Preferably, a sealing assembly is provided on the right outer wall of the lightning protection duct, and the sealing assembly includes a first airbag, a gas pipe is fixedly connected to the right side of the first airbag, a second airbag is fixedly connected to the right side of the gas pipe, and a removal groove is opened on the right side of the blade body.

[0011] Preferably, the second airbag is fixedly installed inside the removal groove, the right outer wall of the lightning protection conduit is arranged on the inner wall of the second airbag, and the rear end of the first airbag is fixedly connected to the right rear end inner wall of the blade body.

[0012] The benefits of this application are: (1) By providing a disassembly assembly, the present application can realize the rapid fixing or disassembly of the lightning protection conduit inside the blade body, and can effectively prevent the blade body from getting stuck when the lightning protection conduit is removed or installed.

[0013] (2) By setting up a fixing component, the present application can adjust the size of the fixing component according to different sizes of lightning protection wires when the disassembly component is moved and fixed inside the blade body, so that the fixing component can fix lightning protection wires of different sizes.

[0014] (3) By setting up a sealing component, the present application can maintain the air tightness inside the blade body when the assembly is disassembled to fix the lightning protection conduit. When the lightning protection conduit needs to be disassembled, the right side of the blade body is opened to facilitate the disassembly of the lightning protection conduit. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 The present invention is a cross-sectional view Figure 1 ; Figure 3 The present invention is a cross-sectional view Figure 2 ; Figure 4 The present invention Figure 2 A magnified view of part A; Figure 5 The present invention Figure 2 A magnified view of part B; Figure 6 The present invention Figure 2 Enlarged view of part C; Figure 7 The present invention Figure 3A magnified view of the D portion; Figure 8 The present invention Figure 2 Enlarged view of part E.

[0016] In the above figure, 1. Blade body; 2. Lightning protection conduit; 3. Placement slot; 4. Disassembly assembly; 41. Circular slot; 42. Push plate; 43. Slide plate; 44. First slide slot; 45. First triangular plate; 46. Fixed plate; 47. First spring; 48. First roller; 49. Second triangular plate; 410. Connecting plate; 411. First hydraulic rod; 412. Hydraulic compartment; 413. Second hydraulic rod; 414. Second roller; 415. Support block; 416. Second spring; 5. Fixed assembly; 51. Support frame; 52. Side plate; 53. Circular plate; 54. Rack; 55. Second slide slot; 56. Limit rod; 57. Gear; 58. Clamp; 6. Sealing assembly; 61. First airbag; 62. Air pipe; 63. Second airbag; 64. Removal slot. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. Example

[0019] See also Figure 1-Figure 6The present embodiment provides a wire connection structure for lightning protection of offshore wind power blades, including a blade body 1, a placement groove 3 is provided inside the blade body 1, a lightning protection conduit 2 is provided inside the placement groove 3, a disassembly component 4 is provided on the outside of the lightning protection conduit 2, the disassembly component 4 includes a circular groove 41, a push plate 42 is provided on the inner side of the circular groove 41, a slide plate 43 is fixedly connected to the rear end of the push plate 42, and a support force is provided for the use of the push plate 42 through the slide plate 43, the slide plate 43 is a rectangular parallelepiped, a first slide groove 44 is provided inside the left side of the blade body 1, the first slide groove 44 is a rectangular parallelepiped, and a support force is provided for the use of a first spring 47 through the blade body 1, a first triangular plate 45 is fixedly connected to the rear end of the slide plate 43, a fixed plate 46 is fixedly connected to the left side of the first triangular plate 45, a first spring 47 is fixedly connected to the left side of the fixed plate 46, and the number of the first springs 47 is four, a first triangular plate 45 is slidably connected to the rear end of the first triangular plate 45, a second triangular plate 49 is hinged to the outer wall of the rear end of the first roller 48, and the bottom of the right side of the second triangular plate 49 is connected to the blade body 1 is hinged to the right bottom inner wall of the slide plate 43, the right rear end of the slide plate 43 is fixedly connected to the connecting plate 410, and the slide plate 43 is used to provide power and support for the use of the connecting plate 410. The right side of the rear end of the connecting plate 410 is fixedly connected to the first hydraulic rod 411, and the connecting plate 410 is used to provide power for the use of the first hydraulic rod 411. The right end of the first hydraulic rod 411 is provided with a hydraulic bin 412, and the left inner wall of the hydraulic bin 412 is slidably connected to the right outer wall of the first hydraulic rod 411, and the right inner wall of the hydraulic bin 412 is slidably connected to the right outer wall of the first hydraulic rod 411. A second hydraulic rod 413 is connected, and a second roller 414 is hinged on the inner wall of the rear end of the second hydraulic rod 413. The second hydraulic rod 413 provides support and power for the use of the second roller 414, so that the second roller 414 can achieve more stable movement. The inner wall of the second roller 414 is slidably connected to the front outer wall of the second triangular plate 49. The right front end of the second triangular plate 49 is fixedly connected with a second spring 416. The number of the second springs 416 is three. The bottom of the hydraulic chamber 412 is fixedly connected with a support block 415. The support block 415 provides support for the use of the hydraulic chamber 412. The slide plate 43 is slidably connected to the inside of the first slide groove 44. The bottom of the support block 415 is fixedly connected to the bottom inner wall of the blade body 1. The end of the first spring 47 away from the fixed plate 46 is fixedly connected to the rear inner wall of the blade body 1, and the end of the second spring 416 away from the second triangular plate 49 is fixedly connected to the front inner wall of the blade body 1.

[0020] When the above-mentioned equipment is used in practice, when it is necessary to disassemble and replace the lightning protection conduit 2 inside the blade body 1, the staff manually moves the pushing plate 42 to the left, so that the pushing plate 42 drives the slide plate 43 at the rear end to slide to the left in the first slide groove 44, and the slide plate 43 moves to the left in the first slide groove 44, driving the fixed plate 46 on the left side of the first triangular plate 45 at the left end of the rear side to squeeze the first spring 47 to the left, so that the first triangular plate 45 can move stably to the left. When the first triangular plate 45 moves to the left, the second spring 416 on the inner side of the blade body 1 can drive the second triangular plate 49 to move to the lower left inside the blade body 1, so that the front end of the first roller 48 at the left front end of the second triangular plate 49 can slide on the rear end of the first triangular plate 45. When the slide plate 43 moves to the left, it can also drive the first hydraulic rod 411 on the connecting plate 410 to move to the left in the hydraulic compartment 412, so that the second hydraulic rod 413 moves forward. Through the forward movement of the second hydraulic rod 413, The second roller 414 is driven to move forward, so that the second triangular plate 49 can move stably inside the blade body 1, providing a basis for the disassembly and replacement of the lightning protection conduit 2 inside the blade body 1. When the lightning protection conduit 2 needs to be fixed, the staff releases the pushing plate 42 pushed to the left. Under the pushing force of the first spring 47, the fixing plate 46 can drive the first triangular plate 45 to move to the right, so that the first triangular plate 45 drives the slide plate 43 to move to the right in the first slide groove 44. The rightward movement of the slide plate 43 drives the first hydraulic rod 411 to move to the right, so that the second hydraulic rod 413 at the other end of the hydraulic warehouse 412 moves backward, so that the second roller 414 on the second hydraulic rod 413 pushes the second triangular plate 49 backward. The rightward movement of the first triangular plate 45 can also drive the rear end of the first triangular plate 45 to slide continuously to the right on the first roller 48, so that the first triangular plate 45 moves backward inside the blade body 1, and the lightning protection conduit 2 at the rear end is fixed. Example

[0021] See also Figure 2-Figure 7On the basis of the first embodiment, a fixing assembly 5 is provided at the rear end of the second triangular plate 49, and the fixing assembly 5 includes a support frame 51, and a side plate 52 is fixedly connected to the rear end of the support frame 51. The support frame 51 provides a supporting force for the use of the side plate 52, so that the use of the side plate 52 is more stable. The side plate 52 is a rectangular parallelepiped, and a circular plate 53 is provided on the inner side of the side plate 52. A rack 54 is fixedly connected to the rear end of the circular plate 53. Both ends of the rack 54 are provided with teeth of equal size. The rack 54 provides a supporting force for the use of the circular plate 53, so that the circular plate 53 can move more stably. Gears 57 are meshed at both ends of the rack 54. The gears 57 are in a group of two, respectively engaged with the two ends of the rack 54 The ends are meshed, a second slide slot 55 is provided at the rear end of the rack 54, the second slide slot 55 is a rectangular parallelepiped, a limit rod 56 is slidably connected in the second slide slot 55, the limit rod 56 is a rectangular parallelepiped, the rear end of the gear 57 is hinged on the side plate 52, and the side plate 52 provides support for the use of the gear 57, a clamp 58 is fixedly connected to the middle of the end of the gear 57 away from the side plate 52, and the gear 57 provides support for the use of the clamp 58, and the clamps 58 are in groups of two, the front end of the support frame 51 is fixedly connected to the rear end of the second triangular plate 49, and the second triangular plate 49 provides support for the use of the support frame 51, and the end of the limit rod 56 away from the second slide slot 55 is fixedly connected to the top of the side plate 52. The side plate 52 provides support for the use of the limit rod 56, the lightning protection conduit 2 is arranged on the inner side of the clamp 58, and the rear end of the circular plate 53 is slidably connected to the front end outer wall of the lightning protection conduit 2.

[0022] When the above-mentioned device is used, when the second triangular plate 49 moves toward the rear end inside the blade body 1, it can drive the support frame 51 to move backward, and the side plate 52 is driven to move backward by the backward movement of the support frame 51, and the circular plate 53 is driven to move backward by the backward movement of the side plate 52. When the circular plate 53 moves backward and hits the lightning protection conduit 2, the circular plate 53 can move forward. The forward movement of the circular plate 53 can drive the second slide groove 55 on the rack 54 to move forward on the limit rod 56, so that the rack 54 can move forward stably. The forward movement of the rack 54 drives the gear 57 to move stably inward on the side plate 52, and the gear 57 is driven to move inwardly. The inner movement drives the clamp 58 to move inward, so that the clamp 58 fixes the inner lightning protection conduit 2. When the lightning protection conduit 2 needs to be disassembled, the second triangular plate 49 moves toward the front end to drive the support frame 51 to move forward. The forward movement of the support frame 51 drives the side plate 52 to move forward, so that the clamp 58 on the gear 57 on the inner side of the side plate 52 moves forward, and the clamp 58 moves outward under the thrust on the outer wall of the lightning protection conduit 2, so that the gear 57 moves outward on the side plate 52, and the second slide groove 55 on the rack 54 inside the gear 57 moves backward on the limit rod 56, so that the rack 54 can stably drive the circular plate 53 to move backward. Example

[0023] See also Figure 1-Figure 8 On the basis of the second embodiment, a sealing assembly 6 is provided on the right outer wall of the lightning protection duct 2, and the sealing assembly 6 includes a first airbag 61. An air pipe 62 is fixedly connected to the right side of the first airbag 61. The air pipe 62 is a rubber hose. A second airbag 63 is fixedly connected to the right side of the air pipe 62. The blade body 1 provides support for the use of the first airbag 61 and the second airbag 63. A removal groove 64 is opened on the right side of the blade body 1. The second airbag 63 is fixedly installed inside the removal groove 64. The right outer wall of the lightning protection duct 2 is arranged on the inner wall of the second airbag 63. The rear end of the first airbag 61 is fixedly connected to the inner wall of the right rear end of the blade body 1, and power is provided for the use of the first airbag 61 through the second triangular plate 49.

[0024] When the above-mentioned device is used, when the second triangular plate 49 moves backward, the second triangular plate 49 can squeeze the first airbag 61, so that the gas inside the first airbag 61 can enter the interior of the second airbag 63 through the air pipe 62, and the second airbag 63 can expand rapidly inside the removal groove 64. When the blade body 1 is in use, the second airbag 63 can close the removal groove 64, which can effectively ensure the internal sealing of the blade body 1 when in use.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wire connection structure for lightning protection of offshore wind turbine blades, comprising a blade body (1), a placement groove (3) is provided inside the blade body (1), a lightning protection conduit (2) is provided inside the placement groove (3), and the characteristics are: A disassembly assembly (4) is arranged on the outer side of the lightning protection conduit (2), and the disassembly assembly (4) comprises a circular groove (41), a push plate (42) is arranged on the inner side of the circular groove (41), and a slide plate (43) is fixedly connected to the rear end of the push plate (42), and a first slide groove (44) is provided inside the left side of the blade body (1), and a first triangular plate (45) is fixedly connected to the rear end of the slide plate (43), and a fixed plate (46) is fixedly connected to the left side of the first triangular plate (45), and a first spring (47) is fixedly connected to the left side of the fixed plate (46), and a first roller (48) is slidably connected to the rear end of the first triangular plate (45), and a second triangular plate (49) is hingedly connected to the rear end outer wall of the first roller (48), and a right rear end of the slide plate (43) is fixedly connected to the rear end of the first triangular plate (45). A connecting plate (410) is fixedly connected, a first hydraulic rod (411) is fixedly connected to the right side of the rear end of the connecting plate (410), a hydraulic bin (412) is provided at the right end of the first hydraulic rod (411), a left inner wall of the hydraulic bin (412) is slidably connected to a right outer wall of the first hydraulic rod (411), a second hydraulic rod (413) is slidably connected to the right inner wall of the hydraulic bin (412), a second roller (414) is hingedly connected to the rear inner wall of the second hydraulic rod (413), the inner wall of the second roller (414) is slidably connected to the front outer wall of the second triangular plate (49), a second spring (416) is fixedly connected to the right front end of the second triangular plate (49), and a support block (415) is fixedly connected to the bottom of the hydraulic bin (412).

2. The offshore wind turbine blade lightning protection wire connection structure according to claim 1, characterized in that: The slide plate (43) is slidably connected inside the first slide groove (44), and the bottom of the support block (415) is fixedly connected to the bottom inner wall of the blade body (1).

3. The offshore wind turbine blade lightning protection wire connection structure according to claim 1, characterized in that: One end of the first spring (47) away from the fixing plate (46) is fixedly connected to the rear end inner wall of the blade body (1), and one end of the second spring (416) away from the second triangular plate (49) is fixedly connected to the front end inner wall of the blade body (1).

4. The offshore wind turbine blade lightning protection wire connection structure according to claim 1, characterized in that: A fixing assembly (5) is provided at the rear end of the second triangular plate (49), and the fixing assembly (5) comprises a support frame (51), the rear end of the support frame (51) is fixedly connected to a side plate (52), a circular plate (53) is provided on the inner side of the side plate (52), the rear end of the circular plate (53) is fixedly connected to a rack (54), both ends of the rack (54) are meshed with gears (57), a second slide groove (55) is provided at the rear end of the rack (54), a limit rod (56) is slidably connected in the second slide groove (55), the rear end of the gear (57) is hinged on the side plate (52), and a clamp (58) is fixedly connected to the middle of one end of the gear (57) away from the side plate (52).

5. The offshore wind turbine blade lightning protection wire connection structure according to claim 4, characterized in that: The front end of the support frame (51) is fixedly connected to the rear end of the second triangular plate (49), and the end of the limit rod (56) away from the second slide groove (55) is fixedly connected to the upper side of the side plate (52).

6. The offshore wind turbine blade lightning protection wire connection structure according to claim 4, characterized in that: The lightning protection conduit (2) is arranged on the inner side of the clamp (58), and the rear end of the circular plate (53) is slidably connected to the front end outer wall of the lightning protection conduit (2).

7. The offshore wind turbine blade lightning protection wire connection structure according to claim 1, characterized in that: A sealing assembly (6) is provided on the right outer wall of the lightning protection conduit (2), the sealing assembly (6) comprising a first airbag (61), a gas supply pipe (62) being fixedly connected to the right side of the first airbag (61), a second airbag (63) being fixedly connected to the right side of the gas supply pipe (62), and a removal groove (64) being provided on the right side of the blade body (1).

8. The offshore wind turbine blade lightning protection wire connection structure according to claim 7, characterized in that: The second airbag (63) is fixedly mounted inside the removal groove (64), the right outer wall of the lightning protection conduit (2) is arranged on the inner wall of the second airbag (63), and the rear end of the first airbag (61) is fixedly connected to the right rear end inner wall of the blade body (1).

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