Lifting appliance for automatically connecting high-altitude hanging of fan blades

Abstract

The invention relates to a fan blade high-altitude hanging automatic connection lifting appliance, and relates to the technical field of wind power equipment lifting, the fan blade high-altitude hanging automatic connection lifting appliance comprises a main frame, an end beam is detachably arranged on the main frame, a suspension bracket is arranged on the lower portion of the main frame, and one end of the suspension bracket is fixedly connected to one end of the end beam; a connecting mechanism is arranged at the other end of the end beam in a lifting adjustable mode, a hanging belt is arranged on the suspension bracket and located in the containing space, one end of the hanging belt is fixedly connected to the end, away from the connecting mechanism, of the end beam, and a lifting ring matched with the connecting mechanism is arranged at the other end of the hanging belt. A limiting structure used for limiting the lifting ring is slidably arranged at the end, close to the connecting mechanism, of the suspension bracket. The limiting structure can effectively limit the lifting ring in the lifting process and adjust the position in a sliding mode, the adjustable arrangement of the connecting mechanism is matched with sliding of the lifting ring, and the lifting efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of wind power equipment hoisting, and in particular to a hoisting device for automatically connecting wind turbine blades by high-altitude hoisting. Background Art

[0002] Wind energy is an important component of today's clean and pollution-free new energy, and has made important contributions to replacing traditional fossil energy for power generation. The main equipment for wind power generation is the wind turbine, which can effectively convert wind energy into electrical energy; the impeller, as an important component of the wind turbine, is a crucial factor affecting the power generation of the wind turbine.

[0003] During the installation and replacement of wind turbine blades, the tower is usually fixed first, the nacelle is fixed to the top of the tower, and then the impeller of the wind turbine is hoisted. Usually, a hoist is used in combination with a sling to hoist the blades.

[0004] At present, when replacing wind turbine blades in the air, whether taking the blades out of the sling or placing the blades of the wind turbine generator set in the sling in the air, it is necessary to manually disconnect the connection between the sling and the sling, then place the blades on the sling and then manually connect the sling to the sling, which is inefficient. Summary of the invention

[0005] In order to solve the problem of hoisting wind turbine blades, the present application provides a hoisting device for automatically connecting wind turbine blades at high altitude.

[0006] The present application provides a hoisting device for automatically connecting high-altitude hoisting of wind turbine blades, which adopts the following technical solution: A hoist for automatically connecting wind turbine blades at high altitude, comprising a main frame, at least two end beams being horizontally arranged on the main frame, a plurality of detachable sites being arranged on the main frame, the end beams being detachably connected to the main frame via the detachable sites, a suspension bracket being arranged at the lower portion of any end beam, one end of the suspension bracket being fixedly connected to one end of the end beam, a connecting mechanism being arranged for lifting and lowering at the other end of the end beam, the connecting mechanism being adjustably arranged along the length direction of the end beam, a placement space for placing the blades being formed between the suspension bracket and the end beam, a sling being arranged on the suspension bracket in the placement space, one end of the sling being fixedly connected to one end of the end beam away from the connecting mechanism, the other end of the sling being arranged with a lifting ring cooperating with the connecting mechanism, and a limiting structure for limiting the lifting ring being slidably arranged at one end of the suspension bracket close to the connecting mechanism.

[0007] By adopting the above technical scheme, the wind turbine blade hanger forms a stable structure through the combination of the main frame and the end beam, and realizes the detachable connection between the end beam and the main frame through the detachable position, thereby improving the flexibility and maintenance convenience of the hanger. The placement space between the suspension bracket and the end beam can stably place the wind turbine blades, and the stable lifting of the blades can be achieved through the slings arranged on the suspension bracket and the lifting ring matched with the connecting mechanism. The limiting structure can effectively limit the lifting ring during the lifting process and slide to adjust the position. The adjustable setting of the connecting mechanism cooperates with the sliding of the lifting ring to improve the lifting efficiency.

[0008] Preferably, the main frame includes at least two long longitudinal beams arranged in parallel, a plurality of short transverse beams are arranged between adjacent long longitudinal beams, a plurality of detachable locations are evenly arranged at both ends of the long longitudinal beams along the length direction of the long longitudinal beams, and the end beams are detachably connected to the long longitudinal beams.

[0009] By adopting the above technical solution, the end beam and the long longitudinal beam are detachably connected, making the wind turbine blade hanger more convenient during assembly and disassembly, and facilitating the adaptation to the hoisting requirements of wind turbine blades of different sizes.

[0010] Preferably, the two ends of the end beam are rotatably connected with the first rotating beam and the second rotating beam respectively, one end of the suspension bracket is fixedly connected to the first rotating beam, the end of the sling away from the lifting ring is fixedly connected to the first rotating beam, the connecting mechanism is lifted and lowered on the second rotating beam, the plane where the long longitudinal beam and the short transverse beam are located is set as the first plane, and the rotation axes of the first rotating beam and the second rotating beam are both perpendicular to the first plane.

[0011] By adopting the above technical solution, the first rotating beam and the second rotating beam are rotatably connected at both ends of the end beam respectively, so that the first rotating beam and the second rotating beam can be rotated to be parallel to the long longitudinal beam when the sling is not in use, thereby reducing the footprint of the sling.

[0012] Preferably, the suspension bracket includes a vertically arranged first support rod and a horizontally arranged second support rod, one end of the first support rod is fixedly connected to the first rotating beam, one end of the second support rod is fixedly connected to the first support rod, and the limiting structure is slidably connected to the second support rod.

[0013] By adopting the above technical solution, the suspension bracket includes a vertically arranged first support rod and a horizontally arranged second support rod, one end of the first support rod is fixedly connected to the first rotating beam, one end of the second support rod is fixedly connected to the first support rod, and the limiting structure is slidably connected to the second support rod, thereby achieving effective limiting of the lifting ring, ensuring that the sling will not loosen during the lifting process, and improving the safety and reliability of the lifting.

[0014] Preferably, a plurality of fourth positioning holes which are relatively coaxially arranged are provided on the second rotating beam, an electric hoist is detachably provided on the fourth positioning hole, and the connecting mechanism is fixedly connected below the electric hoist.

[0015] By adopting the above technical solution, the multiple relatively coaxially arranged first positioning holes set on the second rotating beam can provide multiple installation positions, so that the electric hoist can flexibly adjust the position according to the installation requirements of the blades, further improving the adaptability and ease of operation of the sling.

[0016] Preferably, the connecting mechanism comprises a connecting frame fixedly mounted on the electric hoist, the connecting frame being provided with a connecting space for connecting the lifting ring, and the connecting frame being further provided with an automatic latch, the automatic latch passing through the lifting ring.

[0017] By adopting the above technical solution, through the cooperation of the connecting frame and the automatic latch, the lifting ring can be quickly connected and disassembled, the connection process of the sling and the sling is simplified, and the lifting efficiency is improved.

[0018] Preferably, the lower part of the end beam is slidably connected to a sliding seat in the placement space, one end of the sliding seat is rotatably connected to a clamping rod, an end of the clamping rod away from the sliding seat is provided with a clamping plate for fixing the blade, and a driving mechanism for driving the clamping rod to rotate is provided between the sliding seat and the clamping rod.

[0019] By adopting the above technical solution, the sliding seat located in the placement space at the lower part of the end beam can slide along the end beam to adapt to blades of different sizes. The clamping rod rotatably connected to one end of the sliding seat can be driven to rotate by a driving mechanism, so that the clamping plate arranged at the end of the clamping rod away from the sliding seat can be close to the blade, thereby effectively fixing the blade during the lifting process, avoiding the shaking of the blade during the lifting process, and improving the lifting safety.

[0020] Preferably, a plurality of third positioning holes which are relatively coaxially arranged are vertically and evenly arranged on the first support rod, and one end of the second support rod is sleeved on the first support rod and fixed to the third positioning hole by bolts.

[0021] By adopting the above technical solution, the multiple second positioning holes set on the first support rod enable the second support rod to flexibly adjust its position according to the size of the blade and be fixed by bolts, thereby improving the adaptability and stability of the suspension bracket and ensuring the safety and reliability of the blade during the lifting process.

[0022] Preferably, a first supporting leg is fixedly provided at the lower portion of the first supporting rod, and a second supporting leg is provided at the lower portion of the second supporting rod, and the second supporting leg is adjustably provided along the length direction thereof.

[0023] By adopting the above technical solution, a first supporting leg is fixedly provided at the lower part of the first support rod, and a second supporting leg is provided at the lower part of the second support rod. The second supporting leg is adjustable along the length direction, thereby improving the adaptability and stability of the hoisting device during different wind turbine blade hoisting processes and ensuring the safety of the blades during hoisting.

[0024] Preferably, the first support rod includes a first connecting arm and a second vertical arm, one end of the first connecting arm is fixedly connected to the first rotating beam, one end of the second vertical arm is rotatably connected to the other end of the first connecting arm, the rotation axis of the second vertical arm is parallel to the length direction of the end beam, and one end of the second support rod is fixedly connected to the second vertical arm.

[0025] By adopting the above technical solution, it is ensured that the second vertical arm can be vertical when the sling is slightly tilted, and can adapt to blades with uneven weight, thereby increasing the practicality of the sling.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The connection mechanism and limit structure of the adjustable lifting setting enable the spreader to take out or place the blades in the air, greatly increasing the practicality of the spreader.

[0027] 2. The placement space formed between the suspension bracket and the end beam and the slings arranged on the suspension bracket can conveniently place and fix the wind turbine blades, thereby improving the lifting efficiency; 3. The connection mechanism is used in conjunction with the lifting ring, and the limit structure is used to achieve quick connection and disconnection, avoiding multiple manual operations, simplifying the lifting steps, and reducing labor costs; 4. The detachable connection structure between the detachable site and the main frame and end beam improves the assembly efficiency and flexibility of the spreader, and further ensures the safety of the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 is a diagram of the rotation process of the first rotating beam in an embodiment of the present application; Figure 3 It is a schematic diagram of the overall structure of the side in the embodiment of the present application; Figure 4 This is a schematic diagram of the connection mechanism in the embodiment of the present application; Figure 5 It is a structural schematic diagram of the end beam in the embodiment of the present application; Figure 6 is a schematic structural diagram of the first support rod in an embodiment of the present application; Figure 7 It is a partial enlarged view of the first support rod in the embodiment of the present application.

[0029] Figure numerals: 1, main frame; 101, long longitudinal beam; 102, short cross beam; 103, detachable position; 1031, convex stop; 2, end beam; 201, first positioning hole; 202, second positioning hole; 203, concave stop; 204, positioning flange; 3, first rotating beam; 4, second rotating beam; 401, fourth positioning hole; 5, positioning ear plate; 6, suspension bracket; 601, first support rod; 6011, third positioning hole; 6012, first supporting leg; 602, second support rod; 6021, second supporting leg; 603, first Connecting arm; 604, second vertical arm; 7, placement space; 8, sling; 801, lifting ring; 9, limiting structure; 901, sliding limiting groove; 902, clamping piece; 10, electric hoist; 11, connecting mechanism; 1101, first connecting plate; 1102, second connecting plate; 1103, connecting space; 1104, automatic latch; 12, clamping mechanism; 1201, sliding seat; 1202, sliding track; 1203, clamping rod; 1204, clamping plate; 1205, driving mechanism; 13, limiting rod; 14, limiting hole. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Figure 7 This application is described in further detail.

[0031] The embodiment of the present application discloses a hoisting device for automatically connecting wind turbine blades at high altitude.

[0032] Reference Figure 1 and Figure 2 A hoist for automatically connecting high-altitude hoisting of wind turbine blades comprises a main frame 1, the main frame 1 comprises at least two long longitudinal beams 101 arranged in parallel, a plurality of short cross beams 102 are arranged between adjacent long longitudinal beams 101, in the embodiment of the present application, two long longitudinal beams 101 are arranged, in the embodiment of the present application, four short cross beams 102 are arranged, at least two end beams 2 are arranged horizontally and vertically on the long longitudinal beams 101, in the embodiment of the present application, two end beams 2 are arranged, a plurality of detachable sites 103 are evenly spaced at both ends of any long longitudinal beam 101, the two ends of any end beam 2 are detachably connected to adjacent long longitudinal beams 101 through the detachable sites 103, the end beam 2 is detachably connected to the long longitudinal beam 101, and the spacing between adjacent end beams 2 is different by selecting different detachable sites 103, so as to adapt to blades of different lengths.

[0033] Reference Figure 1 and Figure 2, the two ends of any end beam 2 are rotatably connected with the first rotating beam 3 and the second rotating beam 4 through a pin shaft, the plane where the long longitudinal beam 101 and the short transverse beam 102 are located is set as the first plane, the rotation axis of the first rotating beam 3 and the second rotating beam 4 is perpendicular to the first plane, and the rotation connection of the first rotating beam 3 and the second rotating beam 4 is provided with a positioning ear plate 5, and the two ends of the end beam 2 are provided with a first positioning hole 201 and a second positioning hole 202 matched with the positioning ear plate 5. When the first rotating beam 3 and the second rotating beam 4 rotate to an angle of 180° with the end beam 2, the first rotating beam 3 and the second rotating beam 4 are rotated to an angle of 180° with the end beam 2. 4 are both perpendicular to the long longitudinal beam 101, the positioning ear plate 5 cooperates with the first positioning hole 201 and fixes the first rotating beam 3 and the second rotating beam 4 by inserting the positioning pin; when the first rotating beam 3 and the second rotating beam 4 rotate to an angle of 90° with the end beam 2, the first rotating beam 3 and the second rotating beam 4 are both parallel to the long longitudinal beam 101, the positioning ear plate 5 cooperates with the second positioning hole 202 and fixes the first rotating beam 3 and the second rotating beam 4 by inserting the positioning pin; the rotatably connected first rotating beam 3 and the second rotating beam 4 can be rotated and retracted when not in use, so that the floor space of the sling is reduced and it is easy to place.

[0034] Reference Figure 1 and Figure 3 A suspension bracket 6 is fixedly provided at the lower part of any end beam 2, and a placement space 7 for placing blades is formed between the suspension bracket 6 and the end beam 2. The suspension bracket 6 includes a vertically arranged first support rod 601 and a horizontally arranged second support rod 602. The first support rod 601 includes a first connecting arm 603 and a second vertical arm 604. One end of the first connecting arm 603 is fixedly connected to the first rotating beam 3, and one end of the second vertical arm 604 is rotatably connected to the other end of the first connecting arm 603 through a pin shaft. The rotation axis of the second vertical arm 604 is parallel to the length direction of the end beam 2. A plurality of relatively coaxially arranged third positioning holes 6011 are vertically and evenly provided on the second vertical arm 604. One end of the second support rod 602 is sleeved on the second vertical arm 604 and fixed to the third positioning hole 6011 by bolts. The provision of the third positioning hole 6011 enables the second support rod 602 to adjust its own height as needed, thereby enhancing the practicability of the equipment.

[0035] Reference Figure 1 and Figure 3A sling 8 is provided on the second support rod 602 in the placement space 7, one end of the sling 8 is fixedly connected to the first rotating beam 3, and a lifting ring 801 is provided on the other end of the sling 8. A limiting structure 9 for limiting the lifting ring 801 is slidably connected to the end of the second support rod 602 away from the first support rod 601, and the limiting structure 9 includes a sliding limiting groove 901 and a clamping member 902. The sliding limiting groove 901 opens upward, and a side of the sliding limiting groove 901 close to the second support rod 602 is clamped on the second support rod 602 and forms a sliding fit with the second support rod 602. The clamping member 902 is located at the bottom of the second support rod 602, and a bolt is used to penetrate the clamping member 902 and is threadedly connected to the sliding limiting groove 901. The sliding limiting groove 901 is fixed by tightening the bolt, and the lifting ring 801 is vertically placed in the sliding limiting groove 901.

[0036] Reference Figure 3 and Figure 4 A plurality of fourth positioning holes 401 arranged coaxially relative to each other are provided below the second rotating beam 4. An electric hoist 10 is also provided on the second rotating beam 4. The electric hoist 10 is penetrated through the relatively arranged fourth positioning holes 401 by bolts. A connecting mechanism 11 is provided below the electric hoist 10 through the steel cable lifting. The connecting mechanism 11 includes a connecting frame fixedly provided on the electric hoist 10. The connecting frame includes a first connecting plate 1101 and a second connecting plate 1102 vertically arranged and fixedly connected to the steel cable of the electric hoist 10. The first connecting plate 1101 and the second connecting plate 1102 are arranged opposite to each other. A connecting space 1103 for connecting the lifting ring 801 is formed between the first connecting plate 1101 and the second connecting plate 1102. The connecting mechanism 11 also includes an automatic latch 1104 provided on the first connecting plate 1101. During hoisting, the connecting mechanism 11 and the lifting ring 801 are adjusted to a suitable position, and then the electric hoist 10 and the connecting mechanism 11 are controlled to automatically connect the lifting ring 801 to lift the sling 8 and fix the blades.

[0037] Reference Figure 1 and Figure 3The end beam 2 is also provided with a clamping mechanism 12 at the bottom, the clamping mechanism 12 includes a sliding seat 1201 arranged in the placement space 7, a sliding track 1202 is provided at the bottom of the end beam 2, the sliding seat 1201 is sleeved on the sliding track 1202, a bolt is threadedly connected to the sliding seat 1201, and the bolt and the sliding track 1202 form a tight fit to fix the sliding seat 1201, one end of the sliding seat 1201 is rotatably connected to a clamping rod 1203, and the end of the clamping rod 1203 away from the sliding seat 1201 is connected by a universal shaft The bearing is connected with a clamping plate 1204 for clamping the blades, and a driving mechanism 1205 for driving the clamping rod 1203 to rotate is arranged between the sliding seat 1201 and the clamping rod 1203. In the embodiment of the present application, the driving mechanism 1205 is arranged as a telescopic cylinder, and the piston rod of the telescopic cylinder is fixedly connected to the end of the clamping rod 1203 away from the sliding seat 1201. When the sling 8 starts to contact with the blades, the telescopic cylinder is started to make the clamping plate 1204 move downward and abut against the blades, thereby further fixing the blades and ensuring the stability of the lifting.

[0038] Reference Figure 2 and Figure 5 The detachable position 103 includes a plurality of convex stops 1031 evenly arranged at both ends of the long longitudinal beam 101, and a concave stop 203 matching the convex stop 1031 is arranged on the end beam 2. Positioning flanges 204 are also arranged on both sides of the concave stop 203 of the end beam 2. The positioning flanges 204 are threadedly connected to the long longitudinal beam 101 by bolts. The end beam 2 can adjust the distance between adjacent end beams 2 by selecting to match with different convex stops 1031, so that the sling can adapt to blades of different lengths.

[0039] Reference Figure 6 and Figure 7 The first connecting arm 603 is fixedly provided with limiting rods 13 on both sides of the radial direction of the rotation axis, and the second vertical arm 604 is provided with limiting holes 14 matching with the limiting rods 13 on both sides. The end of the limiting rod 13 away from the first connecting arm 603 is located in the limiting hole 14, and the size of the limiting hole 14 is larger than the diameter of the limiting rod 13. The rotational connection between the first connecting arm 603 and the second vertical arm 604 ensures that the second vertical arm 604 can be upright when the hanger is slightly tilted, and can adapt to blades with uneven weight. The setting of the limiting rod 13 and the limiting hole 14 can prevent the second vertical arm 604 from excessive tilting, thereby increasing the safety of construction.

[0040] Reference Figure 1 and Figure 3A first supporting leg 6012 is also fixedly provided at the lower part of the second vertical arm 604, and a second supporting leg 6021 is provided at the lower part of the second support rod 602. The second supporting leg 6021 can be adjusted along its length direction. The second supporting leg 6021 adopts a telescopic design, which is fixed by a piston rod and a sleeve structure and bolts, so that when the height of the second support rod 602 is adjusted, the second supporting leg 6021 can be flexibly adjusted according to the ground. This design can make the suspension bracket 6 more stable and further enhance the safety of the sling.

[0041] The implementation principle of the embodiment of the present application is as follows: the hoist adopts a detachable end beam 2 to cooperate with the suspension bracket 6 to control the sling 8 and the connecting mechanism 11 set for lifting. During lifting, first use an external device to send the blade into the placement space 7, and then start the lifting ring 801 to slide to the corresponding position, use the electric hoist 10 to lower the connecting mechanism 11 to fix the lifting ring 801, and then raise the lifting ring 801 to make the sling 8 begin to tighten, and at the same time start the clamping mechanism 12 to clamp the blade, thereby realizing fast and stable lifting of blades of different sizes, improving lifting efficiency, reducing lifting costs, and having significant beneficial effects.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sling for automatically connecting high-altitude hoisting of fan blades, characterized by: The invention comprises a main frame (1), at least two end beams (2) are horizontally arranged on the main frame (1), a plurality of detachable positions (103) are arranged on the main frame (1), the end beams (2) are detachably connected to the main frame (1) via the detachable positions (103), a suspension bracket (6) is arranged at the lower part of any end beam (2), one end of the suspension bracket (6) is fixedly connected to one end of the end beam (2), and a connection mechanism (11) is arranged at the other end of the end beam (2) for lifting, and the connection mechanism (11) is arranged along the length of the end beam (2). The suspension bracket (6) is adjustable, a placement space (7) for placing blades is formed between the suspension bracket (6) and the end beam (2), a sling (8) is arranged on the suspension bracket (6) in the placement space (7), one end of the sling (8) is fixedly connected to an end of the end beam (2) away from the connection mechanism (11), the other end of the sling (8) is provided with a lifting ring (801) matched with the connection mechanism (11), and a limiting structure (9) for limiting the lifting ring (801) is slidably arranged at one end of the suspension bracket (6) close to the connection mechanism (11).

2. The sling for automatically connecting high-altitude hoisting of wind turbine blades according to claim 1 is characterized by: The main frame (1) comprises at least two long longitudinal beams (101) arranged in parallel, a plurality of short transverse beams (102) are arranged between adjacent long longitudinal beams (101), a plurality of detachable points (103) are evenly arranged at both ends of the long longitudinal beams (101) along the length direction of the long longitudinal beams (101), and the end beams (2) are detachably connected to the long longitudinal beams (101).

3. The sling for automatically connecting high-altitude hoisting of wind turbine blades according to claim 2 is characterized by: The two ends of the end beam (2) are rotatably connected to a first rotating beam (3) and a second rotating beam (4), respectively; one end of the suspension bracket (6) is fixedly connected to the first rotating beam (3); one end of the sling (8) away from the lifting ring (801) is fixedly connected to the first rotating beam (3); the connecting mechanism (11) is lifted and lowered on the second rotating beam (4); the plane where the long longitudinal beam (101) and the short transverse beam (102) are located is set as a first plane; and the rotation axes of the first rotating beam (3) and the second rotating beam (4) are perpendicular to the first plane.

4. The sling for automatically connecting high-altitude hoisting of wind turbine blades according to claim 3 is characterized by: The suspension bracket (6) comprises a first support rod (601) arranged vertically and a second support rod (602) arranged horizontally, one end of the first support rod (601) is fixedly connected to the first rotating beam (3), one end of the second support rod (602) is fixedly connected to the first support rod (601), and the limiting structure (9) is slidably connected to the second support rod (602).

5. The sling for automatically connecting high-altitude hoisting of wind turbine blades according to claim 3 is characterized by: The second rotating beam (4) is provided with a plurality of fourth positioning holes (401) arranged coaxially relative to each other, an electric hoist (10) is detachably provided on the fourth positioning hole (401), and the connecting mechanism (11) is fixedly connected below the electric hoist (10).

6. The sling for automatically connecting high-altitude hoisting of wind turbine blades according to claim 5 is characterized by: The connecting mechanism (11) comprises a connecting frame fixedly arranged on the electric hoist (10), the connecting frame being provided with a connecting space (1103) for connecting the lifting ring (801), and the connecting frame being further provided with an automatic latch (1104), the automatic latch (1104) being passed through the lifting ring (801).

7. The sling for automatically connecting high-altitude hoisting of wind turbine blades according to claim 1 is characterized by: The lower part of the end beam (2) is located in the placement space (7) and is slidably connected to a sliding seat (1201); one end of the sliding seat (1201) is rotatably connected to a clamping rod (1203); an end of the clamping rod (1203) away from the sliding seat (1201) is provided with a clamping plate (1204) for fixing the blades; and a driving mechanism (1205) for driving the clamping rod (1203) to rotate is provided between the sliding seat (1201) and the clamping rod (1203).

8. The sling for automatically connecting high-altitude hoisting of wind turbine blades according to claim 4 is characterized by: The first support rod (601) is evenly and vertically provided with a plurality of third positioning holes (6011) which are relatively coaxially arranged, and one end of the second support rod (602) is sleeved on the first support rod (601) and fixed to the third positioning hole (6011) by means of bolts.

9. The sling for automatically connecting high-altitude hoisting of wind turbine blades according to claim 4 is characterized by: A first supporting leg (6012) is also fixedly provided at the lower portion of the first supporting rod (601), and a second supporting leg (6021) is provided at the lower portion of the second supporting rod (602), and the second supporting leg (6021) is adjustable along its length direction.

10. The sling for automatically connecting high-altitude hoisting of wind turbine blades according to claim 4, characterized in that: The first support rod (601) comprises a first connecting arm (603) and a second vertical arm (604), one end of the first connecting arm (603) is fixedly connected to the first rotating beam (3), one end of the second vertical arm (604) is rotatably connected to the other end of the first connecting arm (603), the rotation axis of the second vertical arm (604) is parallel to the length direction of the end beam (2), and one end of the second support rod (602) is fixedly connected to the second vertical arm (604).

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