Blade hoisting device for operation and maintenance of wind power blade

Abstract

The utility model discloses a blade lifting device for operation and maintenance of a wind power blade, and relates to the technical field of wind power blades. The device comprises a U-shaped frame, and further comprises a connecting part which is fixedly connected to the top of the U-shaped frame and used for connecting the U-shaped frame and a lifting rope; the buffering part is arranged below the U-shaped frame; the two clamping parts are arranged at the bottom of the U-shaped frame in a hinged mode; wherein the two clamping parts are used for driving the buffering part to clamp and fix the wind power fan blades, the connecting part comprises a hydraulic cylinder frame fixedly connected to the top of the U-shaped frame, and a hook is fixedly connected to the top of the hydraulic cylinder frame. According to the blade lifting device, the buffering part is arranged, so that the problems that when an existing blade lifting device is used, the force for fixing the blade is inconvenient to buffer, the blade is damaged by cracks, deformation and the like due to too tight clamping in the lifting process, the complete structure and the stable performance of the blade are difficult to guarantee, and the service life of the blade is shortened are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of wind power blade, especially relates to a wind power blade operation and maintenance blade hoisting device. BACKGROUND

[0002] With the increasing demand for clean energy all over the world, the wind power industry has ushered in a golden period of vigorous development, and the wind power blade, as one of the core components of the wind turbine generator, directly affects the efficiency and stability of wind power generation, and the operation and maintenance work is crucial in the whole life cycle of the wind power blade, and the blade hoisting device is an indispensable key equipment in the operation and maintenance work.

[0003] However, the existing blade hoisting device is inconvenient to buffer the force for fixing the blade when in use, and the blade may be damaged due to over-tight clamping, such as cracks and deformation, which is difficult to guarantee the integrity of the blade structure and the stability of the performance, thereby shortening the service life. UTILITY MODEL CONTENTS

[0004] The utility model discloses a wind power blade operation and maintenance blade hoisting device, which solves the problem that the existing blade hoisting device is inconvenient to buffer the force for fixing the blade when in use, and the blade may be damaged due to over-tight clamping, such as cracks and deformation, which is difficult to guarantee the integrity of the blade structure and the stability of the performance, thereby shortening the service life.

[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0006] The utility model discloses a wind power blade operation and maintenance blade hoisting device, which includes a U-shaped frame, and further includes:

[0007] The connecting part is fixedly connected to the top of the U-shaped frame and is used for connecting the U-shaped frame and the lifting rope; the buffer part is arranged below the U-shaped frame; and the two clamping parts are hingedly arranged at the bottom of the U-shaped frame; wherein the two clamping parts are used for driving the buffer part to clamp and fix the wind power fan blade.

[0008] Further, the connecting part includes a hydraulic cylinder frame fixedly connected to the top of the U-shaped frame, and a hook is fixedly connected to the top of the hydraulic cylinder frame; wherein the hook is used for connecting the lifting rope, the buffer part includes two clamping plate assemblies, the clamping plate assemblies are arranged below the U-shaped frame and are used for connecting the buffer assembly and the clamping part, and a plurality of buffer assemblies are installed on the two clamping plate assemblies; wherein the buffer assembly is used for buffering the clamping force of the clamping part.

[0009] Further, the clamping part comprises a hinged component arranged at the bottom of the U-shaped frame, and a power component arranged on the hinged component, wherein the power component is used to drive the hinged component to provide clamping force for the buffer part.

[0010] Further, the clamping plate assembly comprises a connecting plate arranged below the U-shaped frame, a clamping plate arranged below the connecting plate, a plurality of limiting rods fixedly connected to the top of the clamping plate, and a limiting piece arranged on the top of each limiting rod, wherein the top of each limiting rod penetrates through the connecting plate, and each limiting rod is in sliding connection with the connecting plate.

[0011] Further, the buffer assembly comprises a spring sheet I in sliding connection with the corresponding limiting rod, a hinged rod penetrating through the spring sheet I, and a spring sheet II in sliding connection with the outer wall of the limiting rod, wherein the spring sheet I is in rotational connection with the hinged rod, and the hinged rod is in rotational penetration through the spring sheet II.

[0012] Further, the hinged component comprises two L-shaped hinged rods arranged at the bottom of the U-shaped frame, wherein one side of each L-shaped hinged rod close to each other is arranged with a hinged rod I, and a hinged rod II is arranged between the two hinged rods I, wherein the two hinged components are arranged in mirror image at the bottom of the U-shaped frame, used to convert the power provided by the power component into balanced clamping force, and the bottom of each L-shaped hinged rod is fixedly connected with the connecting plate of each clamping plate assembly.

[0013] Further, the power component comprises a rectangular plate fixedly connected to the left side of the hinged rod II, a hydraulic cylinder fixedly connected to the inner wall of the hydraulic cylinder frame, and an output shaft of the hydraulic cylinder fixedly connected with the rectangular plate, wherein the rectangular plate is fixedly connected between the hinged rods II of the two hinged components, and the outer shell of the hydraulic cylinder penetrates through the U-shaped frame and is fixedly connected therewith.

[0014] Further, the limiting piece comprises a limiting block fixedly connected to the top of each limiting rod, wherein the bottom of each limiting block is in contact with the connecting plate, used to prevent the limiting rods from sliding off the connecting plate.

[0015] The utility model has the following beneficial effects:

[0016] 1、By setting the buffer, use, the tower crane's sling connecting hook, then put the wind turbine blade between the two clamping plates, then start the hydraulic cylinder. Control its shrink, the hydraulic cylinder drives the rectangular plate to rise, at this time, the left side of the hinged assembly is analyzed, the other side is similar, thereby driving the hinged rod two to rise, the two hinged rods one rises simultaneously around the respective hinged shaft on the rectangular plate, thereby driving the two L-shaped hinged rods to rotate around their hinged shafts on the U-shaped frame, so that the bottoms of the two L-shaped hinged rods approach each other, thereby driving the two buffers to approach each other, so that the clamping force can be effectively buffered, preventing cracks, deformation and other damage of the blade during hoisting due to clamping too tightly, protecting the blade structure integrity and performance stability, prolonging the service life, while absorbing the impact force generated by the sway, reducing the sway amplitude of the blade, making the hoisting more stable;

[0017] 2、By setting the clamping part, when the two buffers approach each other, the two clamping plates will clamp the wind turbine blade, after which the two buffers continue to approach, thereby driving the two connecting plates to approach each other under the condition that the two clamping plates stop moving, the buffer assembly on one of the limit rods is analyzed, the others are similar, the connecting plate will extrude two spring sheets one, two spring sheets one will be extruded by the hinged rod; two spring sheets two, thereby causing the spring sheets one and two to deform, the deformed force is transmitted to the clamping plate as clamping force for fixing the wind turbine blade, thereby achieving buffering of the clamping force of the clamping part, after the wind turbine is clamped, it can be hoisted by the sling, so that a stable clamping force can be provided, thereby ensuring that the blade is always within the effective control range of the hoisting device, preventing the blade from falling, and ensuring hoisting safety.

[0018] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is the overall structure schematic diagram of the present application;

[0021] Figure 2 It is the overall structure schematic diagram of the clamping plate assembly of the present application;

[0022] Figure 3 It is the partial sectional view structure schematic diagram of the clamping plate assembly of the present application;

[0023] Figure 4It is partial sectional view structure schematic diagram of the connecting part of the utility model.

[0024] Figure 5 It is partial sectional view structure schematic diagram of the clamping part of the utility model.

[0025] In the drawings, the components represented by each reference numeral are listed as follows:

[0026] 1, connecting part;111, U-shaped frame;112, hydraulic cylinder frame;113, hook;2, buffer part;21, clamping plate assembly;211, connecting plate;212, clamping plate;213, limiting rod;214, limiting block;22, buffer assembly;221, spring sheet one;222, articulated rod;223, spring sheet two;3, clamping part;31, articulated assembly;311, L-shaped articulated rod;312, articulated rod one;313, articulated rod two;32, power part;321, rectangular plate;322, hydraulic cylinder. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Please refer to Figures 1-5 The utility model discloses a kind of blade hoisting devices for wind power blade operation and maintenance, including U-shaped frame 111, further include: connecting part 1, connecting part 1 is fixedly connected in U-shaped frame 111 top, for connecting U-shaped frame 111 with sling;Buffer part 2, buffer part 2 is arranged below U-shaped frame 111;And two clamping parts 3, two clamping parts 3 are articulatedly arranged in U-shaped frame 111 bottom;Wherein, two clamping parts 3 are used to drive buffer part 2 to clamp and fix wind power fan leaf, connecting part 1 includes the hydraulic cylinder frame 112 of fixedly connected in U-shaped frame 111 top, the top of hydraulic cylinder frame 112 is fixedly connected with hook 113;Wherein, hook 113 is used to connect sling.

[0029] The buffer part 2 comprises two clamping plate assemblies 21 arranged below the U-shaped frame 111 and used for connecting the buffer assemblies 22 and the clamping part 3, and a plurality of buffer assemblies 22 mounted on the two clamping plate assemblies 21; wherein the buffer assemblies 22 are used for buffering the clamping force of the clamping part 3, the clamping plate assembly 21 comprises a connecting plate 211 arranged below the U-shaped frame 111, a clamping plate 212 arranged below the connecting plate 211, a plurality of limiting rods 213 fixedly connected to the top of the clamping plate 212, and a limiting piece mounted on the top of the plurality of limiting rods 213; wherein the top of the plurality of limiting rods 213 penetrates through the connecting plate 211, the plurality of limiting rods 213 are all in sliding connection with the connecting plate 211, the buffer assembly 22 comprises a spring sheet one 221 in sliding connection with the corresponding limiting rod 213, a hinge rod 222 penetrating through the spring sheet one 221, and a spring sheet two 223 in sliding connection with the outer wall of the limiting rod 213; wherein the spring sheet one 221 is in rotational connection with the hinge rod 222, the hinge rod 222 is in rotational penetration with the spring sheet two 223, and the limiting piece comprises a plurality of limiting blocks 214 fixedly connected to the top of the plurality of limiting rods 213; wherein the bottom of the plurality of limiting blocks 214 is all in contact with the connecting plate 211, and is used for preventing the plurality of limiting rods 213 from sliding off from the connecting plate 211; through the arrangement of the buffer part 2, the clamping force can be effectively buffered, the damage of the blade in hoisting due to the over-tight clamping, such as cracks and deformation, can be prevented, the structural integrity and performance stability of the blade can be ensured, the service life can be prolonged, the impact force generated by the shaking can be absorbed, the shaking amplitude of the blade can be reduced, and the hoisting can be more stable.

[0030] The clamping part 3 comprises a hinged assembly 31 hingedly arranged at the bottom of the U-shaped frame 111, and a power part 32 arranged on the hinged assembly 31, wherein the power part 32 is used to drive the hinged assembly 31 to provide a clamping force for the buffer part 2, and the hinged assembly 31 comprises two L-shaped hinged rods 311 hingedly arranged at the bottom of the U-shaped frame 111, and each of the two L-shaped hinged rods 311 is hingedly provided with a hinged rod one 312 on the side close to each other, and a hinged rod two 313 is hingedly arranged between the two hinged rod ones 312; wherein the two hinged assemblies 31 are mirror arranged at the bottom of the U-shaped frame 111, and are used to convert the power provided by the power part 32 into a clamping force in the middle, and the bottoms of the two L-shaped hinged rods 311 are fixedly connected with the connecting plates 211 of the two clamping plate assemblies 21 respectively, and the power part 32 comprises a rectangular plate 321 fixedly connected with the left side of the hinged rod two 313, and the inner wall of the hydraulic cylinder frame 112 is fixedly connected with a hydraulic cylinder 322, and the output shaft of the hydraulic cylinder 322 is fixedly connected with the rectangular plate 321; wherein the rectangular plate 321 is fixedly connected between the hinged rod two 313 of the two hinged assemblies 31, and the outer shell of the hydraulic cylinder 322 penetrates through and is fixedly connected with the U-shaped frame 111, and by arranging the clamping part 3, a stable clamping force can be provided, so that the blade is always within the effective control range of the hoisting device, the blade is prevented from sliding off, and the safety of hoisting and transporting is ensured.

[0031] One specific application of the embodiment is: when in use, the hoisting rope connecting hook 113 of the tower crane is connected, then the wind power blade is placed between the two clamping plates 212, and then the hydraulic cylinder 322 is started to control its contraction, the hydraulic cylinder 322 drives the rectangular plate 321 to rise, at this time, the left hinged assembly 31 is analyzed, and the other side is similar, thereby driving the hinged rod two 313 to rise, the two hinged rod ones 312 of the hinged rod two 313 rise while rotating around the hinged shaft on the rectangular plate 321 respectively, thereby driving the two L-shaped hinged rods 311 to rotate around the hinged shaft on the U-shaped frame 111, so that the bottoms of the two L-shaped hinged rods 311 are close to each other, thereby driving the two buffer parts 2 to be close to each other, when the two buffer parts 2 are close to each other, the two clamping plates 212 will clamp the wind power blade, thereafter the two buffer parts 2 continue to approach, thereby driving the two connecting plates 211 to approach each other under the condition that the two clamping plates 212 stop moving, the buffer assembly 22 on the limiting rod 213 is analyzed, and the others are similar, the connecting plate 211 will extrude the two spring pieces one 221, the two spring pieces one 221 are extruded by the hinged rod 222; the two spring pieces two 223, thereby making the two spring pieces one 221 and the spring pieces two 223 deform, and the deformed force is transmitted to the clamping plate 212 as a clamping force for fixing the wind power blade, thereby realizing the buffering of the clamping force of the clamping part 3, and the wind power is clamped, and then it can be hoisted and transported by the hoisting rope.

[0032] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the utility model disclosed above are only used for helping to explain the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the utility model to only the specific implementation manners described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited only by the claims and the entire scope and equivalents thereof.

Claims

1. A blade lifting device for wind turbine blade operation and maintenance, comprising a U-shaped frame (111), characterized in that, Also includes: Connecting part (1), the connecting part (1) is fixedly connected to the top of the U-shaped frame (111) and is used to connect the U-shaped frame (111) and the hanging rope; Buffer section (2), the buffer section (2) being disposed below the U-shaped frame (111); and Two clamping parts (3) are hinged to the bottom of the U-shaped frame (111); Among them, the two clamping parts (3) are used to drive the buffer part (2) to clamp and fix the wind turbine blades.

2. The blade lifting device for wind turbine blade operation and maintenance according to claim 1, characterized in that, The connecting part (1) includes a hydraulic cylinder frame (112) fixedly connected to the top of the U-shaped frame (111), and a hook (113) is fixedly connected to the top of the hydraulic cylinder frame (112); The hook (113) is used to connect the suspension rope.

3. The blade lifting device for wind turbine blade operation and maintenance according to claim 2, characterized in that, The buffer section (2) includes two clamping plate assemblies (21), which are disposed below the U-shaped frame (111) and are used to connect the buffer assembly (22) and the clamping section (3); and A plurality of buffer assemblies (22) are mounted on two clamping assemblies (21); The buffer assembly (22) is used to buffer the clamping force of the clamping part (3).

4. The blade lifting device for wind turbine blade operation and maintenance according to claim 3, characterized in that, The clamping part (3) includes a hinge assembly (31), which is hinged to the bottom of the U-shaped frame (111); and A power unit (32) is provided on the hinge assembly (31); The power unit (32) is used to drive the hinge assembly (31) to provide clamping force to the buffer unit (2).

5. A blade lifting device for wind turbine blade operation and maintenance according to claim 4, characterized in that, The clamping plate assembly (21) includes a connecting plate (211) disposed below the U-shaped frame (111), a clamping plate (212) is disposed below the connecting plate (211), and a plurality of limiting rods (213) are fixedly connected to the top of the clamping plate (212), and limiting components are installed on the top of the plurality of limiting rods (213). The top of several of the limiting rods (213) passes through the connecting plate (211), and the limiting rods (213) are slidably connected to the connecting plate (211).

6. A blade lifting device for wind turbine blade operation and maintenance according to claim 5, characterized in that, The buffer assembly (22) includes a spring sheet (221) slidably connected to the corresponding limiting rod (213), a hinge rod (222) passing through the spring sheet (221), and a spring sheet (223) slidably connected to the outer wall of the limiting rod (213). Among them, spring plate one (221) is rotatably connected to hinge rod (222), and hinge rod (222) rotatably passes through spring plate two (223).

7. A blade lifting device for wind turbine blade operation and maintenance according to claim 6, characterized in that, The hinge assembly (31) includes two L-shaped hinge rods (311) hinged at the bottom of the U-shaped frame (111). Each of the two L-shaped hinge rods (311) is hinged to a hinge rod one (312) on the side that is close to each other. A hinge rod two (313) is hinged between the two hinge rods one (312). Two hinge components (31) are mirror images of each other at the bottom of the U-shaped frame (111) to convert the power provided by the power unit (32) into a clamping force. The bottoms of the two L-shaped hinge rods (311) are fixedly connected to the connecting plates (211) of the two clamping plate components (21).

8. A blade lifting device for wind turbine blade operation and maintenance according to claim 7, characterized in that, The power unit (32) includes a rectangular plate (321) fixedly connected to the left side of the hinge rod (313), and a hydraulic cylinder (322) is fixedly connected to the inner wall of the hydraulic cylinder frame (112), and the output shaft of the hydraulic cylinder (322) is fixedly connected to the rectangular plate (321). The rectangular plate (321) is fixedly connected between the two hinge rods (313) of the two hinge components (31), and the outer shell of the hydraulic cylinder (322) passes through the U-shaped frame (111) and is fixedly connected to it.

9. A blade lifting device for wind turbine blade operation and maintenance according to claim 8, characterized in that, The limiting component includes limiting blocks (214) that are fixedly connected to the top of several limiting rods (213); The bottom of several of the limiting blocks (214) is in contact with the connecting plate (211) to prevent several limiting rods (213) from slipping off the connecting plate (211).

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