Fan blade hoisting device

Abstract

The utility model discloses a fan blade hoisting device, and relates to the field of fan installation. Comprising a horizontal hanger plate; the horizontal lifting plate is upwards connected with two fixed vertical plates; the fixed vertical plate is rightwards connected with an electric horizontal push rod; a push plate is further included; the left side of the push plate is connected with the tail ends of piston rods of the two electric horizontal push rods, and the right side is connected with first racks in the front-back direction. Two vertical through holes are formed in the horizontal lifting plate; the device further comprises front and rear second racks. And front and rear lifting belts are also included. The fan blade is located below the horizontal lifting plate, the two lifting belts are used for tightening the fan blade, the electric horizontal push rod is operated to push the push plate to move rightwards, and the gear of the first rack is meshed with the gear of the second rack. After the fan blade arrives at the mounting position and is mounted, an electric horizontal push rod is operated to drive a push plate to move leftwards until a first rack gear is separated from a second rack gear, and a second rack is separated from a vertical through hole; and at the moment, a crane is operated to separate the device from the fan blade, so that the hoisting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of fan installation, in particular to a fan blade hoisting device. Background Art

[0002] Wind turbines are devices that use wind energy to generate electricity. As the core component of wind turbines, wind turbine blades are crucial for capturing wind energy and converting it into mechanical energy. During installation, wind turbine blades are hoisted high into the air using equipment such as cranes and secured there.

[0003] A Chinese patent with authorization announcement CN219689103U discloses a single-blade wind turbine hoisting device, wherein a frame is connected to a crane via a towing rope; a first horizontal plate and a second horizontal plate are respectively connected to either side of the frame; a first lifting mechanism is disposed at one end of the first horizontal plate and includes a first hydraulic pump, a first connecting frame, and a first hanging rod; the first hydraulic pump is connected to the first horizontal plate, with its lower end connected to the first connecting frame, and both ends of the first hanging rod are respectively connected to the side walls of the first connecting frame; the second, third, and fourth lifting mechanisms have the same structure as the first lifting mechanism, with a first towing rope disposed between the first and second hanging rods, and a second towing rope disposed between the third and fourth hanging rods. The utility model adjusts the posture of the blades by providing the first, second, third, and fourth lifting mechanisms to prevent them from colliding with the ground and causing damage, and maintains the blades in a horizontal state during the hoisting process, thereby improving the stability of the blades during lifting and operation.

[0004] The above solution has the following drawbacks: once the hoisted wind turbine blades are installed in a predetermined position, the frame must be translated to allow the first and second support ropes and the frame to smoothly and safely detach from the wind turbine blades. This takes a considerable amount of time and affects the efficiency of hoisting the wind turbine blades. Therefore, a wind turbine blade hoisting device is proposed to address this issue. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the existing fan blade hoisting device must be translated to completely separate from the fan blade after the fan blade is hoisted and installed, thereby affecting the hoisting efficiency of the fan blade.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a fan blade lifting device, comprising a horizontal hanging plate; the top surface of the horizontal hanging plate is connected to hanging rings at four locations, front, back, left, and right; the horizontal hanging plate is upwardly connected to two front and rear fixed vertical plates; the two front and rear fixed vertical plates are both connected to an electric horizontal push rod to the right; further comprising a push plate, the push plate being arranged in the front-to-back direction; the left side of the push plate is connected to the piston rod ends of the two front and rear electric horizontal push rods, and the right side is connected to a first rack in the front-to-back direction; the first rack is in a vertical direction and the gear is to the right;

[0007] The horizontal hanging plate has two vertical through holes in the front and rear directions; it also includes two front and rear second racks; the second racks are vertically oriented and the gears face left; the front and rear second racks are respectively placed in the front and rear vertical through holes, and the gears of the front and rear second racks are meshed with the gears of the front and rear first racks in a one-to-one correspondence;

[0008] It also includes two front and rear lifting belts; the lifting belts are located below the horizontal hanging plate; the left end of the lifting belt is connected to the bottom surface of the horizontal hanging plate, and the right end is connected to the lower end of the second rack corresponding thereto.

[0009] Furthermore, a counterweight is connected to the upper end of the second rack; the horizontal projection of the counterweight is within the horizontal projection range of the upper end of the second rack.

[0010] Furthermore, the vertical through hole is provided with vertical grooves on both the front and rear sides thereof; the second rack is connected with vertical guide bars on both the front and rear sides thereof; and the vertical guide bars are clamped in the vertical grooves corresponding thereto.

[0011] Furthermore, two front and rear support grooves are opened on the top surface of the horizontal hanging plate, and the support grooves are arranged in the left and right directions; the push plate is connected to two groups of front and rear support components; the support component includes two left and right support plates; the upper end of the left support plate is connected to the left side of the push plate, and the lower end is clamped in its corresponding support groove; the upper end of the right support plate is connected to the right side of the push plate, and the lower end is clamped in its corresponding support groove.

[0012] Furthermore, it also includes a balancing block; the balancing block is connected to the top surface of the horizontal hanging plate; the balancing block is used to keep the device balanced during use.

[0013] Furthermore, an anti-collision pad is connected to the bottom surface of the horizontal hanging plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The fan blades are located below the horizontal hanging plate. Two lifting belts are used to tighten the fan blades. The electric horizontal push rod is operated to push the push plate to the right, causing the first rack to move to the right until the gear of the first rack engages with the gear of the second rack, thereby fixing the fan blades below the horizontal hanging plate. The crane hooks the lifting ring with a wire rope to lift the device together with the fan blades. After the fan blades arrive at the installation position and are installed, the electric horizontal push rod is operated to drive the push plate to the left, causing the first rack to move to the left until the gear of the first rack is completely disengaged from the gear of the second rack. Under the action of gravity, the second rack detaches from the vertical through hole and is hung below the horizontal hanging plate through the lifting belt. At this time, the crane can be operated to directly detach the device from the fan blades without the need for translation and then detachment, thereby improving the lifting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the utility model.

[0017] Figure 2 It is a partial bottom view schematic diagram of the present invention.

[0018] Figure 3 This is a partial structural diagram of the utility model (1).

[0019] Figure 4 This is a partial structural diagram of the utility model (II).

[0020] The meanings of the numbers in the figure are: 1. Horizontal hanging plate; 2. Fixed vertical plate; 3. Electric horizontal push rod; 4. Push plate; 5. First rack; 6. Lifting ring; 7. Vertical through hole; 8. Second rack; 9. Lifting belt; 10. Counterweight; 11. Vertical slot; 12. Vertical guide bar; 13. Support slot; 14. Support plate; 15. Balance block; 16. Anti-collision pad. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings and specific implementation methods. The described embodiment is only one embodiment of the present invention, and the present invention may also have other implementation methods.

[0022] Example:

[0023] See also Figures 1 to 4 The utility model provides a fan blade lifting device, comprising a horizontal hanging plate 1; the top surface of the horizontal hanging plate 1 is connected with hanging rings 6 at four locations, front, back, left, and right; the horizontal hanging plate 1 is upwardly connected to two front and rear fixed vertical plates 2; the two front and rear fixed vertical plates 2 are both connected to an electric horizontal push rod 3 to the right; it also includes a push plate 4, which is arranged in the front-to-back direction; the left side of the push plate 4 is connected to the piston rod ends of the two front and rear electric horizontal push rods 3, and the right side is connected to a first rack 5 in the front-to-back direction; the first rack 5 is in a vertical direction and the gear is to the right;

[0024] The horizontal hanging plate 1 has two vertical through holes 7 in the front-to-back direction; it also includes two front and rear second racks 8; the second racks 8 are vertically oriented and the gears face left; the front and rear second racks 8 are respectively placed in the front and rear vertical through holes 7, and the gears of the front and rear second racks 8 are meshed with the gears of the front and rear first racks 5 in a one-to-one correspondence;

[0025] It also includes two front and rear lifting belts 9; the lifting belt 9 is located below the horizontal hanging plate 1; the left end of the lifting belt 9 is connected to the bottom surface of the horizontal hanging plate 1, and the right end is connected to the lower end of the second rack 8 corresponding thereto.

[0026] In this embodiment, the fan blades are located below the horizontal hanging plate 1. The fan blades are tightened with two lifting belts 9. The electric horizontal push rod 3 is operated to push the push plate 4 to the right, causing the first rack 5 to move right along with it, until the gear of the first rack 5 is engaged with the gear of the second rack 8, thereby fixing the fan blades below the horizontal hanging plate 1. The crane hooks the lifting ring 6 with a wire rope to lift the device together with the fan blades. After the fan blades arrive at the installation position and are installed, the electric horizontal push rod 3 is operated to drive the push plate 4 to move left, causing the first rack 5 to move left along with it, until the gear of the first rack 5 is completely disengaged from the gear of the second rack 8. Under the action of gravity, the second rack 8 is disengaged from the vertical through hole 7 and is hung below the horizontal hanging plate 1 through the lifting belt 9. At this time, the crane can be operated to directly detach the device from the fan blades without the need for translation and then detachment, thereby improving the lifting efficiency.

[0027] In this embodiment, the front side, the rear side and the right side of the second rack 8 are all slidably connected to the inner wall of the vertical through hole 7. Figure 1 The two front lifting rings 6 are connected to the front crossbeam, and the two rear lifting rings 6 are connected to the rear crossbeam. The front and rear crossbeams are connected to the top of the horizontal hanging plate 1 through the left and right columns. In this embodiment, the electric horizontal push rod 3 is remotely controlled to start and stop in a way that can be achieved by existing technology, which will not be repeated here.

[0028] As a preferred embodiment, a counterweight 10 is connected to the upper end of the second rack 8 ; the horizontal projection of the counterweight 10 is within the horizontal projection range of the upper end of the second rack 8 .

[0029] In this embodiment, the counterweight 10 is provided to increase the weight of the second rack 8 , thereby ensuring that the second rack 8 can slide smoothly down inside the vertical through hole 7 .

[0030] As a preferred embodiment, the vertical through hole 7 has vertical grooves 11 on both the front and rear sides thereof; the second rack 8 is connected to vertical guide bars 12 on both the front and rear sides thereof; the vertical guide bars 12 are snapped into the corresponding vertical grooves 11 .

[0031] In this embodiment, the vertical guide bar 12 is engaged with the vertical groove 11 to prevent the gear of the second rack 8 from getting stuck on the horizontal hanging plate 1 when the second rack 8 slides down.

[0032] As a preferred embodiment, the top surface of the horizontal hanging plate 1 is provided with two front and rear support grooves 13, and the support grooves 13 are arranged in the left and right directions; the push plate 4 is connected to two groups of front and rear support assemblies; the support assembly includes two left and right support plates 14; the upper end of the left support plate 14 is connected to the left side of the push plate 4, and the lower end is clamped in its corresponding support groove 13; the upper end of the right support plate 14 is connected to the right side of the push plate 4, and the lower end is clamped in its corresponding support groove 13.

[0033] In this embodiment, under the action of the electric horizontal push rod 3, the support plate 14 moves left and right in the support groove 13; the support plate 14 cooperates with the support groove 13 to support the push plate 4, so that the force on the push plate 4, the electric horizontal push rod 3, and the fixed vertical plate 2 is more balanced, thereby ensuring the stability of the tightening and clamping of the fan blades during the lifting process.

[0034] As a preferred embodiment, it further includes a balancing block 15; the balancing block 15 is connected to the top surface of the horizontal hanging plate 1; the balancing block 15 is used to keep the device balanced during use.

[0035] In this embodiment, a balancing block 15 is installed on the upper surface of the horizontal hanger 1 through a group of bolts. The balancing block 15 is located on the left side of the horizontal hanger 1. The balancing block 15 can be used to apply gravity to one side of the horizontal hanger 1, further ensuring that the force on the horizontal hanger 1 is balanced, so that it can maintain a balanced state.

[0036] As a preferred embodiment, a crash pad 16 is connected to the bottom surface of the horizontal hanging plate 1 .

[0037] In this embodiment, an anti-collision pad 16 is bonded to the bottom surface of the horizontal suspension plate 1. The anti-collision pad 16 can avoid friction between the fan blades and the bottom surface of the horizontal suspension plate 1, and can prevent the protective paint surface of the fan blades from falling off.

[0038] The terms "connection", "fixation" and "docking" appearing in the description of this utility model may refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in this utility model shall be understood according to the specific circumstances.

[0039] In the description of the present invention, the terms "inside", "upper", "lower", "end", "side", "outer", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fan blade hoisting device, characterized by: It comprises a horizontal hanging plate (1); the top surface of the horizontal hanging plate (1) is connected to hanging rings (6) at four locations, front, back, left, and right; the horizontal hanging plate (1) is upwardly connected to two front and back fixed vertical plates (2); the two front and back fixed vertical plates (2) are both connected to an electric horizontal push rod (3) to the right; it also comprises a push plate (4), which is arranged in the front and back direction; the left side of the push plate (4) is connected to the piston rod ends of the two front and back electric horizontal push rods (3), and the right side is connected to a first rack (5) in the front and back direction; the first rack (5) is in a vertical direction and the gear is to the right; The horizontal hanging plate (1) has two vertical through holes (7) in the front and rear directions; it also includes two front and rear second racks (8); the second racks (8) are vertically oriented and the gears face leftward; the front and rear second racks (8) are respectively placed in the front and rear vertical through holes (7), and the gears of the front and rear second racks (8) are meshed with the gears of the front and rear first racks (5) in a one-to-one correspondence; It also includes two front and rear lifting belts (9); the lifting belt (9) is located below the horizontal hanging plate (1); the left end of the lifting belt (9) is connected to the bottom surface of the horizontal hanging plate (1), and the right end is connected to the lower end of the second rack (8) corresponding thereto.

2. A fan blade hoisting device according to claim 1, characterized in that: The upper end of the second rack (8) is connected to a counterweight (10); the horizontal projection of the counterweight (10) is within the horizontal projection range of the upper end of the second rack (8).

3. A fan blade hoisting device according to claim 1, characterized in that: The vertical through hole (7) is provided with vertical grooves (11) on both the front and rear sides thereof; the second rack (8) is connected with vertical guide bars (12) on both the front and rear sides thereof; the vertical guide bars (12) are clamped in the vertical grooves (11) corresponding thereto.

4. A fan blade hoisting device according to claim 1, characterized in that: The top surface of the horizontal hanging plate (1) is provided with two front and rear support grooves (13), and the support grooves (13) are arranged in the left and right directions; the push plate (4) is connected with two front and rear support assemblies; the support assembly includes two left and right support plates (14); the upper end of the left support plate (14) is connected to the left side of the push plate (4), and the lower end is clamped in its corresponding support groove (13); the upper end of the right support plate (14) is connected to the right side of the push plate (4), and the lower end is clamped in its corresponding support groove (13).

5. The wind turbine blade hoisting device according to claim 1, characterized in that: The device further comprises a balancing block (15); the balancing block (15) is connected to the top surface of the horizontal hanging plate (1); the balancing block (15) is used to keep the device balanced during use.

6. The wind turbine blade hoisting device according to claim 1, characterized in that: The bottom surface of the horizontal hanging plate (1) is connected with an anti-collision pad (16).

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