Adjustable lifting appliance for wind power lifting

Abstract

The utility model relates to the technical field of wind power lifting appliances, in particular to an adjustable lifting appliance for wind power lifting, which comprises a main body, an opening is formed in the upper end of the main body, a rotating seat is detachably connected in the opening, and a lifting ring is rotatably connected above the rotating seat; wherein the lower portion of the main body is rotatably connected with two mounting plates, the mounting plates are detachably connected with the main body through pin shaft assemblies, and at least one connecting hole is formed in the end face of each mounting plate. After rotation, the distance between the two connecting holes can be changed, so that the connecting device can adapt to the distances between the connecting holes of different tower barrels, the connecting requirement of different distances can be met within a certain range, meanwhile, the connecting holes are designed to be round holes, the side slipping problem cannot occur after the connecting device is connected with the tower barrels, and the connecting device is convenient to use. And the adaptability of the whole lifting appliance and the lifting stability are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power hoist technical field especially, relates to a kind of adjustable hoist for wind power hoisting. BACKGROUND

[0002] With the continuous development of wind power generation technology, large wind turbine generators are increasingly widely used. In the installation and maintenance process of wind turbine generators, the hoisting of the tower is an important link. The traditional tower hoisting tool usually adopts the way of fixing the connecting plate at both ends of the tower and setting the lifting ring on the connecting plate for lifting; However, since the hole spacing on different specifications of the tower is not necessarily consistent, this leads to the traditional connecting plate cannot adapt to the demand of different hole spacing.

[0003] To solve this problem, some connecting plates adopt the design of opening a slot structure to adapt to the hole error, but this design has obvious defects in the lifting process. Since the bolt has a certain activity space in the slot structure, side sliding is easy to occur, which not only reduces the safety of hoisting, but also causes potential risks to the operators and equipment.

[0004] Based on this, in order to further optimize the adaptability and lifting safety of the existing hoist, we propose a kind of adjustable hoist for wind power hoisting. SUMMARY

[0005] The utility model aims at solving the shortcomings that the traditional connecting plate cannot adapt to the demand of different hole spacing in the prior art, and proposes a kind of adjustable hoist for wind power hoisting.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A kind of adjustable hoist for wind power hoisting is designed, including main body;

[0008] The upper end of the main body has an opening, and a rotating seat is detachably connected in the opening, and a lifting ring is rotatably connected above the rotating seat;

[0009] Wherein the lower part of the main body is rotatably connected with two mounting plates, and the mounting plate is detachably connected with the main body through pin shaft assembly, at least one connecting hole is opened on the end face of the mounting plate, and the interval of two connecting holes is adjusted by two rotating mounting plates.

[0010] Further, the side of the main body is provided with a shaft rod extending into the opening, and the shaft rod is rotatably connected with the rotating seat, and the tail end of the shaft rod is threadedly connected with the other side of the main body.

[0011] Further, the upper end of the mounting plate has a U-shaped connecting part, the U-shaped connecting part is sleeved on the lower side of the main body, and the pin shaft assembly is connected between the U-shaped connecting part and the main body.

[0012] Further, the pin shaft assembly comprises a sleeve pipe penetrating between the U-shaped connecting part and the main body.

[0013] The inner side of the sleeve pipe movably inserts a trigger rod, and the outer side of the sleeve pipe movably inserts at least one positioning bead, and the outer periphery of the trigger rod has a retracted opening accommodating the positioning bead.

[0014] Further, the outer side of the sleeve pipe is provided with a T-shaped slot, and the outer side of the trigger rod is screw-connected with a guide piece sliding in the T-shaped slot.

[0015] The trigger rod and the sleeve pipe are fixedly connected with a spring.

[0016] Further, a plurality of connecting holes are arranged on the mounting plate, and the diameters of the connecting holes are sequentially reduced from top to bottom along the end surface of the mounting plate.

[0017] Further, the back surfaces of the two mounting plates are in the same plane, and the mounting plates are connected with the tower through fasteners and connecting holes.

[0018] The adjustable lifting appliance for wind power hoisting has the beneficial effects that: in the utility model, the spacing between the connecting holes of the two mounting plates is changed after rotation, so that the spacing between the connecting holes of different tower can be adapted, the connecting requirement of different spacing can be met within a certain range, the round hole design of the connecting hole does not cause side slip after connection with the tower, and the adaptability of the whole lifting appliance and the stability of lifting are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the utility model;

[0020] Figure 2 It is an explosion structure schematic view of the utility model;

[0021] Figure 3 It is a pin shaft assembly structure schematic view of the utility model;

[0022] Figure 4 It is a schematic view of the lifting appliance on different towers.

[0023] In the figure: 1, main body; 11, opening; 12, shaft; 2, rotating seat; 21, lifting ring; 3, mounting plate; 31, connecting hole; 32, U-shaped connecting part; 4, pin shaft assembly; 41, sleeve; 42, trigger rod; 43, positioning bead; 44, inner shrinkage; 45, slot; 46, guide; 47, spring; 5, tower. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0025] Reference Figures 1-4 For an embodiment of the utility model, it discloses a kind of adjustable lifting appliance for wind power hoisting, specifically the lifting appliance includes main body 1, the upper end of the main body 1 has an opening 11, detachable connection has rotating seat 2 in the opening 11, rotating connection has lifting ring 21 above the rotating seat 2;

[0026] Specifically, at least one of the present lifting appliance needs to be connected when hoisting tower 5, lifting ring 21 can be connected by lifting belt to lifting equipment, so when the present lifting appliance and tower 5 are connected, hoisting operation can be carried out by lifting equipment;

[0027] Wherein the lower portion of the main body 1 is rotatably connected with two mounting plates 3, the mounting plate 3 is detachably connected with the main body 1 by pin shaft assembly 4, at least one connecting hole 31 is formed on the end face of the mounting plate 3, and the distance between the two connecting holes 31 is adjusted by the two rotating mounting plates 3.

[0028] That is to say, in the present embodiment, the distance between the connecting holes 31 will change after the two rotating mounting plates 3 are rotated, so that the distance between the connecting holes of different tower 5 can be adapted, and the connection requirements of different distances can be met within a certain range. At the same time, the connecting hole 31 is designed as a round hole, which will not cause side slip after being connected with tower 5, greatly improving the adaptability of the whole lifting appliance and the stability of lifting.

[0029] In some embodiments, the side edge of the main body 1 in the utility model is provided with a shaft 12 extending into the opening 11, the shaft 12 is rotatably connected with the rotating seat 2, and the tail end thereof is threadedly connected with the other side edge of the main body 1. That is to say, the rotating seat 2 in the present embodiment is detachably connected, and when it needs to be detached, the shaft 12 can be rotated to detach it. After that, the whole rotating seat 2 can be detached and separated, so as to optimize the convenience of subsequent maintenance and replacement.

[0030] Furthermore, the upper end of the mounting plate 3 in the embodiment has a U-shaped connecting portion 32, which is sleeved on the lower side of the main body 1, and the pin shaft assembly 4 is connected between the U-shaped connecting portion 32 and the main body 1.

[0031] In a preferred embodiment, the pin shaft assembly 4 in the utility model comprises a sleeve 41 sleeved between the U-shaped connecting portion 32 and the main body 1, and the sleeve 41 has a T-shaped structure in a sectional view, that is, one end of the sleeve 41 has a boss portion stopping outside the U-shaped connecting portion 32.

[0032] The inner side of the sleeve 41 movably inserts a trigger rod 42, and the outer side of the sleeve 41 movably inserts at least one positioning bead 43, and the outer periphery of the trigger rod 42 has a retracted opening 44 accommodating the positioning bead 43. It needs to be specifically pointed out that the outer side of the sleeve 41 in the embodiment is provided with a hole for the movement of the positioning bead 43, and the diameter of the hole is smaller than the outer diameter of the positioning bead 43, so as to avoid the positioning bead 43 from falling off. By stopping the positioning bead 43 outside the U-shaped connecting portion 32, the connection stability of the sleeve 41 to the mounting plate 3 and the main body 1 is ensured.

[0033] On the basis of the above-mentioned embodiment, the outer side of the sleeve 41 in the embodiment is provided with a T-shaped slot 45, and the outer side of the trigger rod 42 is threadedly connected with a guide 46 sliding in the T-shaped slot 45. As a preferred, the guide 46 in the embodiment is provided as a bolt.

[0034] The trigger rod 42 and the sleeve 41 are fixedly connected with a spring 47. Specifically, the outer side of the trigger rod 42 further has a ring groove, the inner side of the sleeve 41 has a stepped hole, and the spring 47 abuts between the inner wall of the ring groove and the stepped hole.

[0035] When it is necessary to disassemble the mounting plate 3 for replacement and maintenance, the trigger rod 42 can be pushed inward, and the trigger rod 42 moves forward until the retracted opening 44 on the outer side of the trigger rod 42 is directed to the positioning bead 43. At this time, the positioning bead 43 is retracted into the retracted opening 44 and does not stop at the side of the U-shaped connecting portion 32. In this state, the entire sleeve 41 can be pulled outward to separate the mounting plate 3 and the main body 1.

[0036] Similarly, the trigger rod 42 and the sleeve 41 in the embodiment are also designed to be separable, that is, after the guide 46 is disassembled, the trigger rod 42 can be taken out from the inner side of the sleeve 41, so that the convenience of assembly is greatly improved.

[0037] As preferred, the connecting holes 31 are provided on the mounting plate 3 in the embodiment, and the diameters of the connecting holes 31 are sequentially reduced from top to bottom along the end surface of the mounting plate 3. The design of the connecting holes 31 with different diameters can adapt to the diameter requirements of different tower drums 5 in a certain range. When the diameters of the connecting holes 31 and the holes on the tower drum 5 are approximately the same, the two can be directly fixed by bolts and other fasteners. In this way, the connecting activity between the mounting plate 3 and the tower drum 5 can be reduced, and the connection stability of the tower drum 5 can be effectively improved.

[0038] In addition, the back surfaces of the two mounting plates 3 are in the same plane in the embodiment, and the mounting plate 3 is connected to the tower drum 5 through fasteners and connecting holes 31. Of course, the fasteners in the embodiment are also bolts, and those skilled in the art only need to select bolts with appropriate diameters to connect them. This method is a conventional technical means, and will not be described in detail here.

[0039] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered within the protection scope of the present application.

Claims

1. An adjustable hoist for wind power hoisting, comprising a main body (1), characterized in that: the upper end of the main body (1) has an opening (11), and a rotating seat (2) is detachably connected in the opening (11), and a lifting ring (21) is rotatably connected above the rotating seat (2); wherein the lower end of the main body (1) is rotatably connected with two mounting plates (3), the mounting plates (3) are detachably connected with the main body (1) through a pin shaft assembly (4), and at least one connecting hole (31) is formed in the end face of the mounting plate (3), and the distance between the two connecting holes (31) is adjusted by the two rotating mounting plates (3).

2. The adjustable spreader according to claim 1, wherein: The side edge of the main body (1) is provided with a shaft rod (12) extending into the opening (11), and the shaft rod (12) is rotatably connected with the rotating seat (2) and is threadedly connected with the other side edge of the main body (1) at the tail end.

3. The adjustable spreader of claim 1, wherein: The upper end of the mounting plate (3) has a U-shaped connecting part (32), which is sleeved on the lower side of the main body (1), and the pin shaft assembly (4) is connected between the U-shaped connecting part (32) and the main body (1).

4. The adjustable spreader of claim 3, wherein: The pin shaft assembly (4) comprises a sleeve (41) arranged between the U-shaped connecting part (32) and the main body (1); the inner side of the sleeve (41) movably inserts a trigger rod (42), and the outer side of the sleeve (41) movably inserts at least one positioning bead (43), and the outer periphery of the trigger rod (42) has a retracted mouth (44) accommodating the positioning bead (43).

5. The adjustable spreader of claim 4, wherein: The outer side of the sleeve (41) is provided with a T-shaped slot (45), and the outer side of the trigger rod (42) is threadedly connected with a guide piece (46) sliding in the T-shaped slot (45); the trigger rod (42) and the sleeve (41) are fixedly connected with a spring (47).

6. An adjustable spreader for windmill installation according to any of claims 1-5, characterized in that: The connecting holes (31) are provided on the mounting plate (3), and the diameters of the connecting holes (31) gradually decrease from top to bottom along the end face of the mounting plate (3).

7. An adjustable spreader for windmill installation according to any of claims 1-5, characterized in that: The back surfaces of the two mounting plates (3) are in the same plane, and the mounting plates (3) are connected with a tower (5) through fasteners and connecting holes (31).

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