Fan blade assembling device

Abstract

The utility model discloses a fan blade assembling device which comprises a lifting platform, hydraulic adjustable supporting legs assembled at the bottom of the lifting platform and a blade horizontal adjusting assembly assembled at the top of the lifting platform. The blade horizontal adjusting assembly comprises a blade support guide rail fixedly installed on the top of the lifting platform, a blade support assembled on the blade support guide rail in a sliding mode through blade support trundles and a horizontal hydraulic cylinder with the fixed end assembled on the lifting platform. The movable end of the horizontal hydraulic cylinder is connected with the blade support and used for driving the blade support to slide along the blade support guide rail. When the fan blade and the hub are assembled, the fan blade root swinging prevention device can prevent the fan blade root from swinging, can effectively solve the problem of screw damage caused by screw collision when the traditional double-machine lifting assembly is adopted, and further can ensure the mounting construction quality of the fan blade.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of wind power engineering, and relates to a ground assembling of a fan blade and a hub, in particular to a fan blade assembling device. BACKGROUND

[0002] On-site construction of a fan blade in a wind power engineering is one of the most complex and risky links in the construction of a wind farm. In general, a whole wind wheel is hoisted on a flat land, that is, three blades and a hub are assembled on the ground, and then the whole is hoisted and connected with a nacelle.

[0003] When the fan blade and the hub are assembled, a hoisting device (such as a crane, a hoist, etc.) is used to hoist the fan blade, and the posture of the fan blade is adjusted to make the double-end screw rod at the root of the fan blade accurately inserted into the bolt hole of the hub flange. The current mode has the following problems: the swing of the fan blade during hoisting is easy to knock the screw rod, which causes damage to the screw rod (such as screw rod bending, thread crushing, etc.). If the damage cannot be found during detection, the consequences such as screw rod pre-tightening force failure, stress concentration, and delayed fracture may occur, and then a fan blade falling accident may occur. CONTENT OF THE UTILITY MODEL

[0004] To solve the above problems in the prior art, the utility model aims to provide a fan blade assembling device to avoid damage to the screw rod caused by knocking during assembling.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fan blade assembling device, comprising a lifting platform, a hydraulic adjustable leg assembled at the bottom of the lifting platform, and a blade horizontal adjusting assembly assembled at the top of the lifting platform; the blade horizontal adjusting assembly comprises a blade support guide rail fixed at the top of the lifting platform, a blade support slidably assembled on the blade support guide rail through a blade support wheel, and a horizontal hydraulic cylinder fixedly assembled on the lifting platform;

[0006] The movable end of the horizontal hydraulic cylinder is connected with the blade support to drive the blade support to slide along the blade support guide rail.

[0007] As a limitation of the utility model, the fixed end of the horizontal hydraulic cylinder is hinged at one end of the top of the lifting platform, and the movable end of the horizontal hydraulic cylinder is hinged on the side surface of the blade support.

[0008] As another limitation of the utility model, the blade support has a semicircular curved groove for supporting the root of the fan blade; a blade protection buffer layer is arranged in the semicircular curved groove.

[0009] As a further limitation of the utility model, the blade protection buffer layer is a porous foam board.

[0010] As a third limitation of the utility model, the lifting platform is a scissor type lifting platform, and the working platform of the scissor type lifting platform is provided with a groove for assembling the blade horizontal adjusting assembly.

[0011] As a further limitation of the utility model, one hydraulic adjustable supporting leg is assembled at each corner of the base of the scissor type lifting platform.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model can adjust the height of the blade root by the lifting platform, adjust the horizontal position of the blade root by the blade horizontal adjusting assembly, and then realize the accurate butt joint of the blade root and the hub through the adjustment in the vertical and horizontal directions. The utility model can avoid the swing of the blade root of the fan blade when the fan blade is matched with the hub, and effectively solve the problem of screw damage caused by the collision of the screw when the traditional double-machine lifting is used to match. Meanwhile, the blade protection buffer layer arranged on the blade holder can effectively protect the fan blade and avoid the surface damage of the blade (root) during the matching and installation.

[0014] The utility model is suitable for use when the fan blade is matched with the hub, can speed up the construction efficiency of the fan hoisting, and improve the installation construction quality of the fan. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0016] Figure 1 It is a structural schematic view of the embodiment of the utility model;

[0017] Figure 2 It is a structural schematic view of the blade horizontal adjusting assembly in the embodiment of the utility model;

[0018] Figure 3 It is a structural schematic view of the blade holder in the embodiment of the utility model;

[0019] In the drawing: 1, lifting platform; 2, hydraulic adjustable supporting leg; 3, blade horizontal adjusting assembly; 4, working platform; 5, groove; 6, blade holder guide rail; 7, blade holder wheel; 8, blade holder; 9, horizontal hydraulic cylinder. PREFERRED EMBODIMENT

[0020] The preferred embodiments of the utility model will be described below in combination with the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the utility model, and are not used to limit the utility model.

[0021] This embodiment discloses a wind turbine blade assembly device, which is an auxiliary tool used when assembling wind turbine blades and hubs. It solves the problems of long assembly time and easy damage to the bolts caused by bumps during ground assembly of wind turbine blades. Figure 1 As shown, this embodiment includes a lifting platform 1, hydraulically adjustable outriggers 2 mounted on the bottom of the lifting platform 1, and a blade leveling assembly 3 mounted on the top of the lifting platform 1.

[0022] The lifting platform 1 adopts the scissor lift platform of existing technology; its specific structure will not be described in detail in this embodiment. Figure 1 or Figure 2 As shown, in this embodiment, the upper surface of the working platform 4 of the scissor lift platform has a groove 5 for mounting the blade leveling assembly 3.

[0023] Hydraulic adjustable outriggers are used to ensure the stable placement of the lifting platform 1 on the ground, giving the working platform 4 of the lifting platform 1 a high degree of levelness. The hydraulic adjustable outriggers adopt existing hydraulic outrigger technology, and in this embodiment, one hydraulic adjustable outrigger is installed at each of the four corners of the base of the lifting platform 1.

[0024] The blade leveling assembly 3 is used to support the root of the wind turbine blades and adjust their horizontal position. For example... Figure 2 As shown, the blade leveling assembly 3 includes a blade support guide rail 6, blade support casters 7, a blade support 8, and a horizontal hydraulic cylinder 9. The blade support guide rail 6 is fixedly installed in the top groove 5 of the lifting platform 1, comprising two parallel lines; the blade support casters 7 are existing track casters, and can be mounted on the blade support guide rail 6, rolling on it; as... Figure 3 As shown, the blade support 8 has a semi-circular curved support groove on the upper part for supporting the root of the wind turbine blade, and a blade support caster 7 is fixedly installed at each of the four corners of the bottom. The blade support 8 is slidably assembled on the blade support guide rail 6 by means of the blade support caster 7. The fixed end of the horizontal hydraulic cylinder 9 is assembled on the lifting platform 1, and the movable end is connected to the blade support 8. The blade support 8 is driven to slide along the blade support guide rail 6 by the extension and retraction of the horizontal hydraulic cylinder 9.

[0025] More specifically, the fixed end of the horizontal hydraulic cylinder 9 is hinged to the inner side of one end of the groove 5 at the top of the lifting platform 1; the movable end of the horizontal hydraulic cylinder 9 is hinged to the side of the blade support 8, as shown in the figure below. Figure 2 As shown.

[0026] The semi-circular curved groove of the blade support 8 is covered with a blade protective buffer layer. In this embodiment, the blade protective buffer layer adopts a fine-pore foam board as used in the prior art.

[0027] When using this embodiment, first place it on a stable and firm ground, ensuring that all hydraulic cylinders (horizontal hydraulic cylinder 9 and the hydraulic cylinders in the scissor lift platform) are reset. Then, adjust the hydraulically adjustable outriggers to make the embodiment stand stably on the ground. If necessary, a level can be used to adjust the height of the hydraulically adjustable outriggers individually. Next, correctly place the root of the wind turbine blade in the semi-circular curved groove of the blade holder 8. The other lifting points of the wind turbine blade are still lifted using the traditional method. After confirming the interface height of the hub, operate the lifting platform 1 to adjust the height of the wind turbine blade root to match the interface height of the hub. After proper adjustment, start the horizontal hydraulic cylinder 9. The horizontal hydraulic cylinder 9 drives the blade holder 8 to slide on the blade holder guide rail 6, allowing the root of the blade holder guide rail 6 to enter the hub. Then, fix the wind turbine blade and the hub to complete the assembly of the wind turbine blade and hub.

[0028] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fan blade set-up device, characterized by: The horizontal hydraulic cylinder is hinged at one end on the top of the lifting platform, and the movable end of the horizontal hydraulic cylinder is hinged on the side surface of the blade holder. The horizontal hydraulic cylinder is hinged at one end on the top of the lifting platform, and the movable end of the horizontal hydraulic cylinder is hinged on the side surface of the blade holder.

2. A fan blade set-up device according to claim 1, wherein: The horizontal hydraulic cylinder is hinged at one end on the top of the lifting platform, and the movable end of the horizontal hydraulic cylinder is hinged on the side surface of the blade holder.

3. A fan blade set-up device according to claim 1 or 2, characterised in that: The blade holder has a semicircular curved groove for supporting the root of the wind turbine blade.

4. A fan blade set-up device according to claim 3, wherein: The blade protection buffer layer is a closed-cell foam board.

5. A fan blade set-up device according to any one of claims 1, 2, 4, wherein: The lifting platform is a scissor type lifting platform, and the working platform of the scissor type lifting platform has a groove for assembling the blade horizontal adjusting assembly.

6. A fan blade set-up device according to claim 5, wherein: The hydraulic adjustable supporting leg is arranged at each corner of the base of the scissor type lifting platform.

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