Blade hoisting device

Abstract

The utility model relates to the field of blade hoisting, in particular to a blade hoisting device which comprises a first fixing frame and a second fixing frame, the first fixing frame and the second fixing frame are both connected with a hoisting tool of a crane, the first fixing frame is installed at the tip end of a blade, and the second fixing frame is installed at the base end of the blade. A limiting groove is formed in the upper portion of the first fixing frame, the first fixing frame is provided with two limiting plates, the two limiting plates are located in the limiting groove and distributed in the width direction of the limiting groove, and the lower ends of the limiting plates are hinged to the bottom wall of the limiting groove; the upper end of one limiting plate is obliquely arranged in the direction away from the other limiting plate, and the first fixing frame is provided with an adjusting piece used for adjusting the angle of the limiting plate. The hoisting device has the effect of improving the hoisting efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of blade hoisting, in particular to a blade hoisting device. BACKGROUND

[0002] When hoisting the blade, the blade is relatively fragile, so the first fixing frame and the second fixing frame are respectively installed at both ends of the blade during hoisting, the two ends of the blade are fixed through the first fixing frame and the second fixing frame, and then the blade is lifted through the first fixing frame and the second fixing frame.

[0003] The first fixing frame is usually located at the tip of the blade, and the upper and lower sides of the blade are usually arc surfaces. The first fixing frame is located in a V-shaped groove which is usually fixed in the blade. The inclination angle of the V-shaped groove is usually fixed. However, the curvature radii of the arc surfaces at different positions of the blade are different. When the first fixing seat is installed at different positions, the positions of the two contact lines of the blade and the V-shaped groove are different. When the distance between the two contact lines is small, it will affect the limiting effect. Therefore, the position of the first fixing frame needs to be accurately adjusted during installation, so that the contact line of the V-shaped groove and the blade is at the appropriate position. However, this will result in low hoisting efficiency. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the hoisting efficiency, the present application provides a blade hoisting device.

[0005] The blade hoisting device provided by the present application adopts the following technical scheme:

[0006] A blade hoisting device, comprising a first fixing frame and a second fixing frame, the first fixing frame and the second fixing frame are connected with a lifting tool of a crane, the first fixing frame is installed at the tip of the blade, the second fixing frame is installed at the base end of the blade, the upper part of the first fixing frame is provided with a limiting groove, the first fixing frame is provided with limiting plates, the limiting plates are two, both of which are located in the limiting groove and are distributed along the width direction of the limiting groove, the lower end of the limiting plate is hinged to the bottom wall of the limiting groove, the upper end of the limiting plate is inclined away from the other limiting plate, and the first fixing frame is provided with an adjusting piece for adjusting the angle of the limiting plate.

[0007] By adopting the above technical scheme, the limiting plates are movably connected, and the two limiting plates can form a V-shaped groove. The angle of the limiting plate is adjusted by the adjusting piece. After the first fixing frame is installed at the appropriate position, the angle of the limiting plate can be adjusted according to the position of the blade corresponding to the current position, so that the contact line of the V-shaped groove and the blade is at the appropriate position, and the distance between the two contact lines is controlled. Compared with the prior art, this installation method can improve the hoisting efficiency.

[0008] Optionally, the adjusting member is a support rod, one end of the support rod is hinged to the first fixing frame, the other end of the support rod is hinged to the limiting plate, and the support rod is a telescopic adjusting rod.

[0009] By adopting the above technical scheme, the limiting plate can be adjusted through the support rod, and the support rod is a telescopic adjusting rod. By adjusting the length of the support rod, the angle of the limiting plate can be adjusted.

[0010] Optionally, the support rod comprises a sliding tube, a telescopic rod and an adjusting nut, the sliding tube has a sliding cavity, the telescopic rod is slidably connected to the sliding cavity along the axial direction, the telescopic rod is a threaded rod, the adjusting nut is rotatably connected to the telescopic tube at the opening of the sliding cavity, the telescopic tube is threaded through the adjusting nut, the sliding tube is hinged to the first fixing frame, and the telescopic rod is hinged to the limiting plate.

[0011] By adopting the above technical scheme, when the length of the support rod needs to be adjusted, the adjusting nut is rotated, thereby driving the telescopic rod to slide relative to the sliding tube, and the length of the support rod can be adjusted.

[0012] Optionally, both ends of each limiting plate are provided with a support rod.

[0013] By adopting the above technical scheme, both ends of the limiting plate are provided with a support rod, thereby improving the stability of the angle limiting of the limiting plate and improving the stability of the support of the blade.

[0014] Optionally, the sliding tube is provided with a drive motor, the drive motor is provided with a transmission assembly, the drive motor drives the adjusting nut to rotate through the transmission assembly, and a plurality of drive motors are connected to the control terminal.

[0015] By adopting the above technical scheme, the rotation of the plurality of drive motors can be controlled at the same time through the control terminal, thereby improving the synchronism of the length adjustment of the support rod, and preventing the limiting plate from being stuck during rotation.

[0016] Optionally, the transmission assembly comprises a first gear and a second gear, the first gear is coaxially sleeved on the sliding tube, the first gear is connected to the adjusting nut, the second gear is arranged on the output shaft of the drive motor, and the first gear is engaged with the second gear.

[0017] By adopting the above technical scheme, the drive motor drives the first gear to rotate, thereby driving the second gear to rotate, and further driving the telescopic rod to expand or contract, so as to adjust the length of the support rod.

[0018] Optionally, an installation cavity is arranged at the upper end of the limiting plate, and a limiting air bag is arranged in the installation cavity.

[0019] By adopting the above technical scheme, since the length of the blade is relatively long and the blade is prone to shaking during hoisting, the limiting air bag is arranged to reduce damage to the blade by flexible limiting of the limiting air bag.

[0020] To sum up, the present application has at least one of the following beneficial technical effects:

[0021] 1. The limiting plate is movably connected, and the two limiting plates form a V-shaped groove, the angle of the limiting plate is adjusted by the adjusting member, after the first fixing frame is installed at a suitable position, the angle of the limiting plate is adjusted according to the position of the blade corresponding to the current position, so that the contact line of the limiting plate and the blade is at a suitable position, the distance between the two contact lines is controlled, and the installation efficiency is improved compared with the prior art.

[0022] 2. Since the length of the blade is relatively long and the blade is prone to shaking during hoisting, the limiting air bag is arranged to reduce damage to the blade by flexible limiting of the limiting air bag. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of the embodiment;

[0024] Figure 2 is a structural schematic view of the first fixing seat in the embodiment;

[0025] Figure 3 is a structural schematic view of the blade installed in the first fixing seat in the embodiment

[0026] Figure 4 is Figure 2 is an enlarged schematic view of A in FIG. 4.

[0027] Marked 1, the first fixing frame; 11, the limiting groove; 12, the avoiding groove; 2, the second fixing frame; 3, the blade; 4, the limiting plate; 41, the installation block; 42, the air bag; 5, the supporting rod; 51, the sliding pipe; 52, the adjusting nut; 53, the telescopic rod; 54, the transmission assembly; 541, the first gear; 542, the second gear; 55, the driving motor. DETAILED DESCRIPTION

[0028] The following will be described in detail with reference to the accompanying drawings. Figures 1-4 The present application will be further described in detail.

[0029] The embodiment of the present application discloses a blade 3 hoisting device. Referring to Figure 1 andFigure 2 , comprising a first fixing frame 1 and a second fixing frame 2, the first fixing frame 1 and the second fixing frame 2 are fixedly connected with a spreader of a crane, the first fixing frame 1 is installed at a tip end of the blade 3, and the second fixing frame 2 is installed at a base end of the blade 3.

[0030] With reference to Figure 2 and Figure 3 , the second fixing frame 2 comprises an upper frame body and a lower frame body, the upper frame body and the lower frame body are fixedly connected with each other by bolts and are sleeved and installed at the end of the blade 3.

[0031] With reference to Figure 2 and Figure 3 , the upper portion of the first fixing frame 1 is provided with a limiting groove 11, the limiting groove 11 is communicated with the two side walls of the first fixing frame 1, the first fixing frame 1 is provided with limiting plates 4, the two limiting plates 4 are located in the limiting groove 11 and are distributed along the width direction of the limiting groove 11. The length direction of the limiting plate 4 is parallel to the extension direction of the limiting groove 11, the lower end of the limiting plate 4 is hinged to the bottom wall of the limiting groove 11, the upper end of the limiting plate 4 is obliquely arranged away from the other limiting plate 4 to form a V-shaped groove, and the first fixing frame 1 is provided with an adjusting member for adjusting the angle of the limiting plate 4.

[0032] With reference to Figure 2 and Figure 3 , the adjusting member is a supporting rod 5, the length of the limiting plate 4 is greater than the extension length of the limiting groove 11, so that the two ends of the limiting plate 4 protrude from the side surface of the first fixing frame 1, the supporting rod 5 is hinged to the side surface of the first fixing frame 1, the other end of the supporting rod 5 is hinged to the lower surface of the limiting plate 4, and the supporting rod 5 is a telescopic adjusting rod.

[0033] With reference to Figure 2 and Figure 3 , the supporting rod 5 comprises a sliding pipe 51, a telescopic rod 53 and an adjusting nut 52, the sliding pipe 51 has a sliding cavity, one end of the sliding pipe 51 is hinged to the side surface of the first fixing frame 1, the telescopic rod 53 is slidably connected to the sliding cavity along the axis direction, the telescopic rod 53 is a threaded rod, and the other end of the telescopic rod 53 away from the sliding pipe 51 is hinged to the lower surface of the limiting plate 4. The adjusting nut 52 is coaxially and rotationally connected to the telescopic pipe at the opening of the sliding cavity, and the telescopic pipe is threadedly provided in the adjusting nut 52.

[0034] With reference to Figure 2 , Figure 3 and Figure 2 , the two ends of each limiting plate 4 are provided with the supporting rod 5, the sliding pipe 51 is provided with a driving motor 55, the driving motor 55 is provided with a transmission assembly 54, the driving motor 55 drives the adjusting nut 52 to rotate through the transmission assembly 54, and the plurality of driving motors 55 are connected to a control terminal.

[0035] With reference toFigure 3 And Figure 4 The transmission assembly 54 comprises a first gear 541 and a second gear 542, the first gear 541 is coaxially sleeved on the sliding pipe 51, the end surface of the first gear 541 is fixedly connected to the end surface of the adjusting nut 52, the second gear 542 is coaxially fixed to the output shaft of the driving motor 55, and the first gear 541 is engaged with the second gear 542.

[0036] With reference to Figure 2 And Figure 4 Figure 2 Figure 4 The installation blocks 41 are fixedly connected to the mutually distal sides of the limiting plates 4, the installation blocks 41 are provided with installation cavities, the installation cavities are communicated with the mutually close sides of the limiting plates 4, the limiting air bags 42 are fixedly arranged in the installation cavities of the installation blocks 41, and the limiting air bags 42 can protrude from the surface of the limiting plates 4 after being inflated.

[0037] The implementation principle of the blade 3 hoisting device is that the limiting plates 4 are movably connected and can form a V-shaped groove, the angle of the limiting plates 4 is adjusted through the supporting rods 5, after the first fixed frame 1 is installed at a suitable position, the angle of the limiting plates 4 can be adjusted according to the position of the blade 3 corresponding to the current position, so that the contact lines of the limiting plates 4 and the blade 3 are at a suitable position, the distance between the two contact lines is controlled, and the hoisting efficiency can be improved relative to the prior art.

[0038] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A blade hoisting device, characterized by: The utility model provides a wind turbine blade fixing device, including first fixed frame (1) and second fixed frame (2), first fixed frame (1) and second fixed frame (2) are connected with the spreader of crane, first fixed frame (1) is installed in the tip portion of blade (3), second fixed frame (2) is installed in the base end of blade (3), the upper portion of first fixed frame (1) is provided with limiting slot (11), first fixed frame (1) is provided with limiting plate (4), limiting plate (4) is provided with two, two limiting plates (4) are located in limiting slot (11) and along the width direction distribution of limiting slot (11), the lower end of limiting plate (4) is hinged to the bottom wall of limiting slot (11), the upper end of limiting plate (4) is inclined to the direction away from another limiting plate (4), first fixed frame (1) is provided with the adjusting member for adjusting the angle of limiting plate (4).

2. A blade hoisting arrangement according to claim 1, characterised in that: The adjusting member is a support rod (5), one end of the support rod (5) is hinged to the first fixed frame (1), the other end of the support rod (5) is hinged to the limiting plate (4), and the support rod (5) is a telescopic adjusting rod.

3. A blade hoist device according to claim 2, characterised in that: The support rod (5) includes a sliding tube (51), a telescopic rod (53), and an adjusting nut (52). The sliding tube (51) has a sliding cavity. The telescopic rod (53) is slidably connected to the sliding cavity along an axial direction. The telescopic rod (53) is a threaded rod. The adjusting nut (52) is rotationally connected to the telescopic tube at an opening of the sliding cavity. The telescopic tube is threadedly arranged in the adjusting nut (52). The sliding tube (51) is hinged to the first fixed frame (1). The telescopic rod (53) is hinged to the limiting plate (4).

4. A blade hoist device according to claim 3, characterised in that: Both ends of each limiting plate (4) are provided with a support rod (5).

5. A blade hoist device according to claim 4, characterised in that: The sliding tube (51) is provided with a drive motor (55). The drive motor (55) is provided with a transmission assembly (54). The drive motor (55) drives the adjusting nut (52) to rotate through the transmission assembly (54). A plurality of drive motors (55) are connected to a control terminal.

6. A blade hoist device according to claim 5, characterised in that: The transmission assembly (54) includes a first gear (541) and a second gear (542). The first gear (541) is coaxially arranged in the sliding tube (51). The first gear (541) is connected to the adjusting nut (52). The second gear (542) is arranged on the output shaft of the drive motor (55). The first gear (541) is engaged with the second gear (542).

7. A vane hoisting device according to claim 1, characterized in that: The upper end of the limiting plate (4) is provided with a mounting cavity. The mounting cavity is provided with a limiting air bag (42). When the limiting air bag (42) is inflated, the limiting air bag (42) can protrude from the surface of the limiting plate (4).

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