Assembling lifting appliance for wind driven generator blades

Abstract

The utility model relates to the related field of generator blade lifting appliances, in particular to an assembly lifting appliance for wind driven generator blades, which comprises a device body, a left frame, a right frame and a lengthening section are arranged in the device body, sling boxes are arranged on the outer sides of the left frame and the right frame, the lower ends of the sling boxes are connected with lifting belts, and the lifting belts are connected with the lengthening section. Side edge blocks are arranged on the inner side of the left frame and the inner side of the right frame, a plurality of mounting holes are formed in the side edge blocks, fixing bolts are connected into the mounting holes in the two sides, side edge blocks and mounting holes are also arranged at the two ends of the lengthening section, and the lengthening section is connected between the left frame and the right frame through the side edge blocks and the mounting holes. According to the lifting appliance, the use length of the lifting appliance can be adjusted, the lifting appliance is convenient to adapt to lifting operation of generator blades of different sizes and specifications, a lifting rope can be reasonably wound and hung and limited in the non-use period, and the problem that the lifting rope and an external lifting hook are collided and damaged or broken when being hung outside is solved.

Description

Technical Field

[0001] The utility model relates to the relevant field of generator blade hangers, in particular to an assembly hanger for wind generator blades. Background Art

[0002] The principle of wind power generation is to use wind power to drive the wind turbine blades to rotate, and then increase the speed of rotation through the speed increaser to drive the generator to generate electricity. After the wind turbine blades are processed, they need to be hoisted and transported to the designated location for installation. The blade hoisting equipment is one of the most important hoists in the wind power field. The blade length is 40-60 meters. When the workshop makes the blade blank, it is limited by the workshop space. Therefore, two hoisting points are usually set for the overall hoisting of the blade. One hoisting point is set at the tip of the blade and hoisted by a sling bag or other methods. The other hoisting point is hoisted by the root hoist due to the limitation of the blank demolding space.

[0003] In the prior art, blade hoisting is mostly carried out by multiple groups of tower cranes, which not only takes up a large space, but is also inconvenient to operate. It requires coordinated operations between multiple groups of tower cranes, is prone to problems such as hoisting tilt, and is more dangerous and difficult to operate. A few operations that are carried out by a single tower crane usually cannot adjust the length of the equipment to adapt to the smaller size of blades, have many restrictions on hoisting operations, and are not practical. The hoisting rope is also directly hung on the frame after use, which can easily cause it to wear and break. Therefore, we need to upgrade and transform the existing technology to overcome its existing problems and shortcomings. Utility Model Content

[0004] The utility model aims to provide an assembly hanger for wind turbine blades to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wind turbine blade assembly hanger is designed: comprising a device body, the device body comprising a left frame, a right frame and an extension section, the outer sides of the left frame and the right frame are provided with a sling box, the lower ends of the sling box are connected with a sling belt, the inner sides of the left frame and the right frame are provided with side blocks, the side blocks are provided with a plurality of mounting holes, the mounting holes on both sides are connected with fixing bolts, the two ends of the extension section are also provided with side blocks and mounting holes, the extension section is connected between the left frame and the right frame through the side blocks and the mounting holes, the upper ends of the left frame and the right frame are symmetrically provided with winding racks, the inner side of the winding rack is rotatably provided with a winding roller, a lifting rope is wound around the winding roller, and an external hook is provided at the upper end of the lifting rope, and one end of the winding roller is connected with a motor.

[0007] Furthermore, at least two groups of sling boxes are symmetrically arranged, and the two groups of sling boxes are respectively fixed on both sides of the lower ends of the left frame and the right frame.

[0008] Furthermore, a plug-in block and a plug-in slot are respectively provided on the inner sides of the left frame and the right frame, and the plug-in block and the plug-in slot correspond to each other.

[0009] Furthermore, a plug-in block and a plug-in slot are respectively provided at both ends of the extension section, and the extension section is connected between the left frame and the right frame through the plug-in block and the plug-in slot.

[0010] Furthermore, the left frame, the right frame and the bottom of the extension section are all provided with guide sleeves, the three groups of guide sleeves are located in the same straight line position and auxiliary rods are inserted through the three groups of guide sleeves.

[0011] Furthermore, the left frame and the right frame are both provided with limit hooks, and the external hook is hooked with the limit hook when being reeled in.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a left frame, a right frame, an extension section, a plug-in block, a plug-in groove, a side block, a mounting hole, a fixing bolt, a guide sleeve and an auxiliary rod in the device. The side block is fixed by the mounting hole and the fixing bolt, and the plug-in groove and the plug-in block are correspondingly spliced, and the guide sleeve and the auxiliary rod are correspondingly plugged in. The extension section, the left frame and the right frame can be connected and fixed to each other, which is convenient for adjusting the use length of the lifting device, and is convenient for adapting to the lifting operation of generator blades of different sizes and specifications, and effectively improves the applicability of the device.

[0014] 2. The utility model is provided with a left frame, a right frame, a winding frame, a winding roller, a lifting rope, an external lifting hook, a limit hook and a motor in the device. The rotation of the winding roller is controlled by the motor, and the external lifting hook is hung by the limit hook. The lifting rope can be reasonably wound up and limited when not in use, avoiding the lifting rope and the external lifting hook from being damaged or broken when hanging outside, thereby improving the safety and practicality of the device.

[0015] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the lengthened structure of an assembly hanger for wind turbine blades according to the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of an assembly hanger for wind turbine blades according to the utility model;

[0019] Figure 3 This is an exploded view of the bottom structure of an assembly hanger for wind turbine blades according to the utility model;

[0020] Figure 4 The utility model is an exploded view of the winding frame structure of an assembly hanger for wind turbine blades.

[0021] In the figure: 1. Device body; 2. Left frame; 3. Right frame; 4. Sling box; 5. Lifting belt; 6. Extension section; 7. Plug-in block; 8. Plug-in slot; 9. Side block; 10. Mounting hole; 11. Fixing bolt; 12. Guide sleeve; 13. Auxiliary rod; 14. Winding frame; 15. Winding roller; 16. Lifting rope; 17. External hook; 18. Limit hook; 19. Motor. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 As shown in Figure 4, the present embodiment provides a design of an assembly hanger for wind turbine blades: comprising a device body 1, the device body 1 comprises a left frame 2, a right frame 3 and an extension section 6, a sling box 4 is arranged on the outer side of the left frame 2 and the right frame 3, a sling box 4 is connected to the lower end of the sling box 4, a side block 9 is arranged on the inner side of the left frame 2 and the right frame 3, a plurality of mounting holes 10 are opened on the side block 9, and fixing bolts 11 are connected to the mounting holes 10 on both sides, side blocks 9 and mounting holes 10 are also arranged at both ends of the extension section 6, the extension section 6 is connected between the left frame 2 and the right frame 3 through the side blocks 9 and the mounting holes 10, a winding frame 14 is symmetrically arranged on the upper ends of the left frame 2 and the right frame 3, a winding roller 15 is rotatably arranged on the inner side of the winding frame 14, a lifting rope 16 is wound around the winding roller 15, and an external hook 17 is arranged on the upper end of the lifting rope 16, and a motor 19 is connected to one end of the winding roller 15.

[0024] Preferably, at least two groups of sling boxes 4 are symmetrically arranged, and the two groups of sling boxes 4 are respectively fixed on both sides of the lower ends of the left frame 2 and the right frame 3. The left frame 2 and the right frame 3 are both provided with limit hooks 18, and the external hooks 17 are hung with the limit hooks 18 when winding;

[0025] The four sets of sling boxes 4 symmetrically arranged on both sides can effectively improve the stability during lifting and avoid the generator blades from tilting and deviating. The limit hook 18 can be used to hang and limit the external hook 17 after winding to avoid its swinging and hitting the equipment.

[0026] Preferably, the inner sides of the left frame 2 and the right frame 3 are respectively provided with a plug-in block 7 and a plug-in slot 8, the plug-in block 7 and the plug-in slot 8 correspond to each other, the two ends of the extension section 6 are respectively provided with a plug-in block 7 and a plug-in slot 8, the extension section 6 is connected between the left frame 2 and the right frame 3 through the plug-in block 7 and the plug-in slot 8, the bottom of the left frame 2, the right frame 3 and the extension section 6 are all provided with a guide sleeve 12, the three groups of guide sleeves 12 are located in the same straight line position and the three groups of guide sleeves 12 are penetrated and inserted with auxiliary rods 13;

[0027] Through the cooperation of the plug-in block 7 and the plug-in slot 8, it is convenient to assist in docking the left frame 2 and the right frame 3, and to assist in the installation and docking of the extension section 6, thereby improving the combined stability. Through the cooperation of the guide sleeve 12 and the auxiliary rod 13, it is convenient to improve the stability between the extension section 6 and the left frame 2 and the right frame 3, thereby improving the safety of the lifting operation.

[0028] The use principle and use process of the utility model are as follows: when using, first determine the equipment length according to the on-site conditions and needs. When it is necessary to add an extension section 6, place the extension section 6 between the left frame 2 and the right frame 3, and connect them through the plug-in block 7 and the plug-in slot 8, so that the side blocks 9 on both sides of the extension section 6 are respectively fitted with the side blocks 9 of the left frame 2 and the right frame 3. At this time, the extension section 6 can be fixed by cooperating with the fixing bolt 11 and the mounting hole 10. Finally, the auxiliary rod 13 is inserted into the guide sleeve 12. After the fixing is completed, the winding roller 15 can be controlled to rotate by the upper end motor 19. The winding roller 15 rotates and unwinds the wound lifting rope 16, and the external hook 17 is removed from the limit hook 18. Then, the four sets of lifting ropes 16 are connected to the external tower crane equipment through the upper end external hook 17. Then, the lifting belts 5 on both sides of the lower end are respectively sleeved on both sides of the generator blades. There is no need to use multiple sets of tower cranes, which can effectively maintain the lifting stability of the generator blades and avoid the problem of tilting.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

Claims

1. An assembly hanger for wind turbine blades, characterized in that: The invention comprises a device body (1), wherein the device body (1) comprises a left frame (2), a right frame (3) and an extension section (6), wherein the outer sides of the left frame (2) and the right frame (3) are both provided with a sling box (4), the lower end of the sling box (4) is connected with a sling belt (5), the inner sides of the left frame (2) and the right frame (3) are both provided with a side block (9), the side block (9) is provided with a plurality of mounting holes (10), the mounting holes (10) on both sides are connected with fixing bolts (11), and the two ends of the extension section (6) are also provided with There are side blocks (9) and mounting holes (10), the extension section (6) is connected between the left frame (2) and the right frame (3) through the side blocks (9) and the mounting holes (10), the upper ends of the left frame (2) and the right frame (3) are symmetrically provided with winding frames (14), the inner side of the winding frames (14) is provided with a winding roller (15) for rotation, a lifting rope (16) is wound around the winding roller (15), and an external hook (17) is provided at the upper end of the lifting rope (16), and one end of the winding roller (15) is connected to a motor (19).

2. The wind turbine blade assembly hanger according to claim 1, characterized in that: At least two groups of the sling boxes (4) are symmetrically arranged, and the two groups of the sling boxes (4) are respectively fixed on both sides of the lower ends of the left frame (2) and the right frame (3).

3. The wind turbine blade assembly hanger according to claim 1, characterized in that: A plug-in block (7) and a plug-in slot (8) are respectively arranged on the inner sides of the left frame (2) and the right frame (3), and the plug-in block (7) and the plug-in slot (8) correspond to each other.

4. The wind turbine blade assembly hanger according to claim 1, characterized in that: The two ends of the extension section (6) are respectively provided with a plug-in block (7) and a plug-in slot (8), and the extension section (6) is connected between the left frame (2) and the right frame (3) via the plug-in block (7) and the plug-in slot (8).

5. The wind turbine blade assembly hanger according to claim 1, characterized in that: The bottoms of the left frame (2), the right frame (3) and the extension section (6) are all provided with guide sleeves (12), the three groups of guide sleeves (12) are located in the same straight line position and auxiliary rods (13) are inserted through the three groups of guide sleeves (12).

6. The wind turbine blade assembly hanger according to claim 1, characterized in that: The left frame (2) and the right frame (3) are both provided with a limit hook (18), and the external hook (17) is hooked with the limit hook (18) when being rolled up.

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