Lifting appliance for mounting fan blade

Abstract

The utility model relates to the technical field of wind driven generator installation, in particular to a lifting appliance for fan blade installation, which comprises a lifting appliance body, a connecting frame, a hoist assembly and two connecting ropes, the connecting frame is provided with an electric wind-up roller, and the hoist assembly comprises a first electric hoist and a second electric hoist. The lifting appliance body is arranged below the connecting frame in a suspended mode through the two connecting ropes, the first steel wire rope of the first electric hoist and the second steel wire rope of the second electric hoist. The electric winding roller works to wind or release the two connecting ropes, the first steel wire rope and the second steel wire rope, so that the lifting appliance body can turn over up and down in the left-right direction; and the first electric hoist and the second electric hoist work to wind or release the first steel wire rope and the second steel wire rope, so that the lifting appliance body can be turned over up and down in the front-back direction, the blade clamped on the lifting appliance body through the clamping assembly can be turned over at a corresponding angle, and the blade can be conveniently mounted at different angle positions.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind driven generator installation technical field especially, a kind of lifting appliance for fan blade installation. BACKGROUND

[0002] Wind power blade is one of the key components of wind driven generator, they are responsible for capturing wind energy and converting it into mechanical energy, and then into electrical energy through generator. Since the blade volume is large, it needs to be installed by lifting appliance.

[0003] The existing blade lifting appliance is generally hoisted vertically to the installation place for installation, but due to the different installation positions of the blade, it cannot be accurately installed to the blade installation place of the installation tower by hoisting the blade vertically, and it needs to be turned over appropriately after hoisting the blade vertically according to the different installation positions of the blade, so that the blade can be installed to the installation position of the installation tower, but the existing blade lifting appliance needs to use other turning equipment or auxiliary tools to turn over the blade after hoisting, which is not convenient for the installation of the blade. SUMMARY

[0004] The utility model solves the technical problem to provide a kind of lifting appliance for fan blade installation convenient for blade installation.

[0005] The utility model solves the technical problem and adopts the technical scheme that the lifting appliance for fan blade installation includes lifting appliance body, is provided with clamping assembly on lifting appliance body, further include connecting frame, gourd component and two connecting ropes, connecting frame left and right sides are provided with electric winding roller respectively, electric winding roller can rotate around the center shaft, electric winding roller is arranged in front-back direction;

[0006] The lower end of the left connecting rope is connected with the left rear end of the lifting appliance body, and the upper end of the left connecting rope is wound and arranged behind the left electric winding roller. The lower end of the right connecting rope is connected with the right rear end of the lifting appliance body, and the upper end of the right connecting rope is wound and arranged behind the right electric winding roller.

[0007] The left front end of the lifting appliance body is provided with a first fixed pulley, and the right front end of the lifting appliance body is provided with a second fixed pulley. The gourd component is arranged on the lifting appliance body and located between the first fixed pulley and the second fixed pulley. The gourd component includes a first electric hoist and a second electric hoist, and both the first electric hoist and the second electric hoist are arranged in front-back direction. The outer end of the first steel wire rope of the first electric hoist is wound and arranged in front of the left electric winding roller through the first fixed pulley, and the outer end of the second steel wire rope of the second electric hoist is wound and arranged in front of the right electric winding roller through the second fixed pulley.

[0008] The hoist body is suspended below the connecting frame by two connecting ropes, a first steel wire rope of the first electric hoist and a second steel wire rope of the second electric hoist.

[0009] Further, the hoist body is a U-shaped body with an open end facing forward.

[0010] Further, the clamping assembly is arranged in the inner cavity of the hoist body, and the clamping assembly comprises an upper clamping plate and a lower clamping plate, and the upper surface of the upper clamping plate and the lower surface of the lower clamping plate are both provided with a protective buffer.

[0011] Further, the protective buffer is made of rubber.

[0012] Further, the connecting rope is a steel wire rope.

[0013] Further, the hoist assembly comprises a protective box body, and the first electric hoist and the second electric hoist are both arranged in the protective box body.

[0014] Further, the connecting frame is provided with a protective plate on the left and right sides, and the protective plate is arranged above the electric winding roller.

[0015] Further, the angle between the two connecting ropes, the first steel wire rope of the first electric hoist and the second steel wire rope of the second electric hoist (17) and the hoist body is 30-45°.

[0016] Further, the hoist body is provided with a traction stable connecting assembly on the left and right sides, and the traction stable connecting assembly comprises a connecting cylinder, and the piston rod of the connecting cylinder is movably connected with the traction rope.

[0017] Further, the traction stable connecting assembly further comprises a rope stripping block and a mounting shell, and the mounting shell and the rope stripping block are both connected to the lower surface of the hoist body, and the connecting cylinder is arranged in the mounting shell.

[0018] The rope stripping block comprises a connecting cavity, and the front and rear sidewalls of the connecting cavity are respectively provided with a rope stripping through hole, and the piston rod of the connecting cylinder is slidably arranged through the rope stripping through hole, and the lower sidewall of the connecting cavity is provided with an open structure traction rope through hole.

[0019] The present invention has the following beneficial effects: a connecting frame, a hoist assembly, and two connecting ropes are provided, with electric reel rollers being provided on the left and right sides of the connecting frame, respectively. The hoist assembly includes a first electric hoist and a second electric hoist, and a sling body is suspended below the connecting frame via the two connecting ropes, a first steel wire rope of the first electric hoist, and a second steel wire rope of the second electric hoist. The electric reel rollers are capable of reeling in or releasing the two connecting ropes, the first steel wire rope and the second steel wire rope, thereby increasing or decreasing the length of the connecting ropes, the first steel wire rope and the second steel wire rope between the connecting frame and the sling body, and enabling the sling body to be flipped up and down in the left-right direction. The first electric hoist and the second electric hoist are capable of reeling in or releasing the first steel wire rope and the second steel wire rope, thereby increasing or decreasing the length of the first steel wire rope and the second steel wire rope between the connecting frame and the sling body, and enabling the sling body to be flipped up and down in the front-back direction, thereby enabling a blade clamped on the sling body by the clamping assembly to be flipped to a corresponding angle, thereby facilitating installation of the blade at different angles and effectively improving the efficiency and accuracy of blade installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure when the protective plate is removed;

[0022] Figure 3 is a schematic diagram of a traction stabilization connection assembly;

[0023] Marked as: sling body 1, clamping assembly 2, first steel wire rope 3, connecting frame 4, hoist assembly 5, connecting rope 6, electric winding roller 7, first fixed pulley 8, second fixed pulley 9, protective buffer 10, protective plate 11, traction stabilization connection assembly 12, connecting cylinder 13, rope release block 14, connecting chamber 15, traction rope through hole 16, second steel wire rope 17. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] The directions mentioned below are Figure 1 The position of each component in the figure is used as the reference.

[0026] like Figure 1 、 Figure 2 As shown, the utility model is used for installing wind turbine blades, including a sling body 1, on which a clamping assembly 2 is provided, and further comprising a connecting frame 4, a hoist assembly 5 and two connecting ropes 6. The connecting frame 4 is provided with electric winding rollers 7 on the left and right sides respectively. The electric winding rollers 7 can rotate around their central axis and are arranged in the front-to-back direction.

[0027] The lower end of the left connecting rope 6 is connected with the left rear end of the hoist body 1, and the upper end of the left connecting rope 6 is wound on the rear side of the left electric winding roller 7. The lower end of the right connecting rope 6 is connected with the right rear end of the hoist body 1, and the upper end of the right connecting rope 6 is wound on the rear side of the right electric winding roller 7.

[0028] The left front end of the hoist body 1 is provided with a first fixed pulley 8, the right front end of the hoist body 1 is provided with a second fixed pulley 9, the hoist body 1 is provided with a first electric hoist and a second electric hoist, and the first electric hoist and the second electric hoist are arranged in the front-rear direction. The outer end of the first steel wire rope 3 of the first electric hoist is wound on the front side of the left electric winding roller 7 through the first fixed pulley 8, and the outer end of the second steel wire rope 17 of the second electric hoist is wound on the front side of the right electric winding roller 7 through the second fixed pulley 9.

[0029] The hoist body 1 is suspended below the connecting frame 4 by the two connecting ropes 6, the first steel wire rope 3 of the first electric hoist, and the second steel wire rope 17 of the second electric hoist.

[0030] When the electric winding roller 7 is working, the electric winding roller 7 can rotate around its central axis, and the electric winding roller 7 can wind or release the two connecting ropes 6, the first steel wire rope 3, and the second steel wire rope 17. When the electric winding roller 7 is not working, the electric winding roller 7 is in a fixed state and cannot rotate around its central axis, and the electric winding roller 7 cannot wind or release the two connecting ropes 6, the first steel wire rope 3, and the second steel wire rope 17. The front-rear direction arrangement of the electric winding roller 7 means that its length direction is front-rear direction.

[0031] When the first electric hoist and the second electric hoist are working, the first electric hoist and the second electric hoist can wind or release the first steel wire rope and the second steel wire rope. When the first electric hoist and the second electric hoist are not working, the first electric hoist and the second electric hoist cannot wind or release the first steel wire rope and the second steel wire rope.

[0032] The electric winding roller 7 can work to wind or release the two connecting ropes 6, the first steel wire rope 3 and the second steel wire rope 17, increase or decrease the length of the connecting rope 6, the first steel wire rope 3 and the second steel wire rope 17 between the connecting frame 4 and the sling body 1, and enable the sling body 1 to be flipped up and down in the left-right direction; the first electric hoist and the second electric hoist can work to wind or release the first steel wire rope 3 and the second steel wire rope 17, increase or decrease the length of the first steel wire rope 3 and the second steel wire rope 17 between the connecting frame 4 and the sling body 1, and enable the sling body 1 to be flipped up and down in the front-back direction, so that the blade clamped on the sling body 1 by the clamping assembly 2 can be flipped by a corresponding angle, facilitating the installation of the blade at different angle positions and effectively improving the efficiency and accuracy of the blade installation.

[0033] Specifically, as shown in Figure 1 , Figure 2 The clamping assembly 2 is used to clamp the blade, and the clamping assembly 2 includes an upper clamping plate used to contact the blade, a lower clamping plate, and a driving element used to drive the upper clamping plate and the lower clamping plate to move closer to or away from each other. The driving element can be a motor or a hydraulic rod. Since the blade is large and heavy, the driving element is preferably a hydraulic rod, which has the advantage of stable performance. The clamping plate of the clamping assembly 2 used to contact the wind power blade is provided with a protective buffer 10 made of rubber. The protective buffer 10 not only avoids rigid contact between the clamping plate and the blade, thereby providing protection for the blade and avoiding damage to the coating on the surface of the blade during hoisting, but also increases the friction between the blade and the upper clamping plate and the lower clamping plate, thereby preventing the blade from slipping out of the clamping assembly 2 during flipping and further increasing the safety of hoisting.

[0034] In order to facilitate the arrangement of the clamping assembly 2 and improve the use effect of the clamping assembly 2, the sling body 1 is preferably a U-shaped body with the opening end facing forward, and the clamping assembly 2 is arranged in the inner cavity of the sling body 1.

[0035] Since the blade is large and heavy, in order to ensure safety during installation, the connecting rope 6 is a steel wire rope, and is a steel wire rope with a relatively large diameter.

[0036] The first electric hoist and the second electric hoist are electric hoist cranes, which mainly include a winding drum and a steel wire rope wound around the winding drum. The first electric hoist and the second electric hoist are arranged in the front-back direction, which means that the winding drums of the first electric hoist and the second electric hoist are arranged in the front-back direction. In order to protect the winding drums of the first electric hoist and the second electric hoist, the hoist assembly 5 includes a protective box, and the first electric hoist and the second electric hoist are arranged in the protective box. The first steel wire rope 3 and the second steel wire rope 17 pass through the protective box.

[0037] In order to protect the electric winding roller 7, so that it can work normally in rainy days, again as shown in Figure 1 、 Figure 2 The protection plate 11 is arranged above the electric winding roller 7.

[0038] In order to ensure the use effect of the two connecting ropes 6, the first steel wire rope 3 of the first electric hoist and the second steel wire rope 17 of the second electric hoist, and ensure that the lifting tool body 1 can be turned to the required angle for blade installation, the included angle (acute angle) between the two connecting ropes 6, the first steel wire rope 3 of the first electric hoist and the second steel wire rope 17 of the second electric hoist and the lifting tool body 1 is 30-45°.

[0039] In order to improve the stability and safety of the lifting tool for fan blade installation in the lifting process, again as shown in Figure 1 、 Figure 2 and Figure 3 The traction stability connecting assembly 12 is connected to the left and right sides of the lifting tool body 1 and includes a connecting cylinder 13. The piston rod of the connecting cylinder 13 is movably connected with the traction rope. During lifting, the piston rod of the connecting cylinder 13 is connected with the traction rope connected with the ground, thereby improving the stability and safety in the lifting process. In order to facilitate the separation of the piston rod of the connecting cylinder 13 and the traction rope after the blade installation is completed, the traction stability connecting assembly 12 of the utility model further comprises a rope separation block 14 and a mounting shell. The mounting shell and the rope separation block 14 are both connected to the lower surface of the lifting tool body 1. The connecting cylinder 13 is arranged in the mounting shell, and the mounting shell protects the connecting cylinder 13. The rope separation block 14 comprises a connecting cavity 15. The front and rear side walls of the connecting cavity 15 are respectively provided with rope separation through holes. The piston rod of the connecting cylinder 13 can be slidably arranged through the rope separation through holes. An open structure traction rope through hole 16 is arranged on the lower side wall of the connecting cavity 15. When the piston rod of the connecting cylinder 13 is movably connected with the traction rope, the traction rope on the ground is first passed through the traction rope through hole 16 and enters the connecting cavity 15. The piston rod of the connecting cylinder 13 is extended. The piston rod is sequentially passed through the rope separation through holes on the front and rear side walls of the connecting cavity 15 and is movably connected with the traction rope in the connecting cavity 15. When the piston rod of the connecting cylinder 13 is separated from the traction rope, the piston rod is retracted. The piston rod can pass through the rope separation through hole, while the traction rope cannot. Since the piston rod is movably connected with the traction rope, the traction rope is blocked by the side wall of the connecting cavity 15, so that the piston rod is separated from the traction rope.

Claims

1. A hanger for installing fan blades, comprising a hanger body (1), a clamping assembly (2) provided on the hanger body (1), and characterized in that: It also includes a connecting frame (4), a hoist assembly (5) and two connecting ropes (6), wherein the connecting frame (4) is provided with electric winding rollers (7) on the left and right sides respectively, and the electric winding rollers (7) are capable of rotating around their central axis, and the electric winding rollers (7) are arranged in a front-to-back direction; The lower end of the left connecting rope (6) is connected to the left rear end of the sling body (1), and the upper end of the left connecting rope (6) is wound around the rear side of the left electric winding roller (7). The lower end of the right connecting rope (6) is connected to the right rear end of the sling body (1), and the upper end of the right connecting rope (6) is wound around the rear side of the right electric winding roller (7). A first fixed pulley (8) is provided at the front end of the left side of the sling body (1), and a second fixed pulley (9) is provided at the front end of the right side of the sling body (1). A hoist assembly (5) is provided on the sling body (1) and is located between the first fixed pulley (8) and the second fixed pulley (9). The hoist assembly (5) includes a first electric hoist and a second electric hoist. The first electric hoist and the second electric hoist are arranged in a front-to-back direction. The outer end of the first steel wire rope (3) of the first electric hoist passes through the first fixed pulley (8) and is wound around the front side of the electric winding roller (7) arranged on the left side. The outer end of the second steel wire rope (17) of the second electric hoist passes through the second fixed pulley (9) and is wound around the front side of the electric winding roller (7) arranged on the right side. The sling body (1) is suspended below the connecting frame (4) through two connecting ropes (6), a first steel wire rope (3) of a first electric hoist, and a second steel wire rope (17) of a second electric hoist.

2. The hanger for installing wind turbine blades according to claim 1, characterized in that: The sling body (1) is U-shaped with the open end facing forward.

3. The hanger for installing wind turbine blades according to claim 2, characterized in that: The clamping assembly (2) is arranged in the inner cavity of the sling body (1), and the clamping assembly (2) includes an upper clamping plate and a lower clamping plate. The upper surface of the upper clamping plate and the lower surface of the lower clamping plate are both provided with protective buffer parts (10).

4. The hanger for installing wind turbine blades according to claim 3, characterized in that: The material of the protective buffer (10) is rubber.

5. The hanger for installing wind turbine blades according to claim 1, characterized in that: The connecting rope (6) is a steel wire rope.

6. The hanger for installing wind turbine blades according to claim 1, characterized in that: The hoist assembly (5) comprises a protective box, and the first electric hoist and the second electric hoist are both arranged in the protective box.

7. The hanger for installing wind turbine blades according to claim 1, characterized in that: Protective plates (11) are respectively provided on the left and right sides of the connecting frame (4), and the protective plates (11) are arranged above the electric winding roller (7).

8. The hanger for installing wind turbine blades according to claim 1, characterized in that: The angles between the two connecting ropes (6), the first steel wire rope (3) of the first electric hoist, the second steel wire rope (17) of the second electric hoist and the sling body (1) are 30-45 degrees.

9. The hanger for installing a wind turbine blade according to any one of claims 1 to 8, characterized in that: The left and right sides of the sling body (1) are respectively connected with traction stabilization connection components (12), and the traction stabilization connection components (12) include a connection cylinder (13), and the piston rod of the connection cylinder (13) can be movably connected to the traction rope.

10. The hanger for installing wind turbine blades according to claim 9, characterized in that: The traction stabilization connection assembly (12) further includes a rope release block (14) and a mounting shell. The mounting shell and the rope release block (14) are both connected and arranged on the lower surface of the sling body (1), and the connecting cylinder (13) is arranged in the mounting shell. The rope-removing block (14) includes a connecting chamber (15), and rope-removing holes are respectively provided on the front and rear side walls of the connecting chamber (15). The piston rod connected to the cylinder (13) can slide through the rope-removing hole. A traction rope through hole (16) with an open structure is provided on the lower side wall of the connecting chamber (15).

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