Blade lifting appliance of wind generating set

Abstract

The utility model discloses a wind generating set blade lifting appliance which comprises a lifting main body and a swing arm structure, the swing arm structure comprises two swing arms, the two swing arms are arranged at the two ends of the lifting main body in the width direction in a swing mode, and the swing stroke of the two swing arms is provided with a first position where the two swing arms are mutually opened and a second position where the two swing arms are mutually closed. A hanging point structure is arranged at the tail end of each swinging arm; in the first position, the two hanging point structures are far away from each other so as to be connected to the two ends of the blade bearing piece correspondingly. When the two swing arms move to the first position, the two swing arms can be mutually opened in the width direction of the hoisting body, the two hanging point structures are far away from each other, and therefore the two ends of the blade bearing piece can be lifted to hoist the wind generating set blade, and after hoisting is finished, the two swing arms can be adjusted to the second position, so that the two swing arms are folded; and therefore, the width size of the blade lifting appliance of the wind generating set is reduced, the whole structure can adapt to the size of a transportation carrier, and land transportation of the blade lifting appliance is facilitated.

Description

Technical Field

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

[0002] In the field of wind power generation, it is usually necessary to transport the various components of a wind turbine to a preset location and then assemble them. The assembly process usually includes using a blade hanger to lift the wind turbine blades to a high place for installation. However, the existing blade hangers are too large to be transported as a whole. They usually need to be disassembled into various parts and then loaded and transported. As a result, operators need to spend time assembling and disassembling the blade hangers, affecting the assembly efficiency of the wind turbine. Utility Model Content

[0003] The main purpose of the utility model is to provide a blade hanger for a wind turbine generator set, aiming to solve the problem that during the transportation and assembly process of the wind turbine generator set, operators need to assemble and disassemble the blade hanger, which affects the assembly efficiency of the wind turbine generator set.

[0004] To achieve the above-mentioned purpose, the wind turbine blade hanger proposed by the utility model comprises:

[0005] Lifting the main body; and,

[0006] The swing arm structure comprises two swing arms, which are swingably arranged at both ends of the width direction of the hoisting body and have a first position of being mutually open and a second position of being mutually closed in their swing stroke, and the ends of the two swing arms are respectively provided with hanging point structures;

[0007] Wherein, in the first position, the two hanging point structures are away from each other so as to be respectively connected to the two ends of the blade bearing member.

[0008] In some embodiments, the two swing arms and the two hanging point structures correspond one to one to form a swing hanging group, and multiple swing hanging groups are provided and extend in the length direction of the hanging body.

[0009] In some embodiments, the lifting body comprises:

[0010] A main beam extending along the length direction; and

[0011] A plurality of end beams are arranged along the length direction and extended along the width direction. A plurality of swing suspension groups are respectively arranged corresponding to the plurality of end beams, wherein the two swing arms are respectively arranged at both ends of the end beams.

[0012] In some embodiments, the end beam is detachably connected to the main beam.

[0013] In some embodiments, the main beam includes a plurality of beam segments arranged along the length direction, and two adjacent beam segments are detachably connected;

[0014] Wherein, the end beams are arranged in sections corresponding to the beam body.

[0015] In some embodiments, the swing arm is swingably arranged along an axis located in the height direction of the end beam.

[0016] In some embodiments, a locking portion is formed on the hanging point structure, and the hanging point structure can move in the length direction of the swing arm;

[0017] The swing arm is formed with a plurality of matching parts arranged along its length direction;

[0018] During the movable travel of the hanging point structure, the locking portion can be selectively connected to one of the matching portions.

[0019] In some embodiments, the hanging point structure includes:

[0020] a hanging portion having two hanging ends, wherein the locking portion is formed at one of the hanging ends and the other hanging end is used to be connected to an end of a blade carrier; and

[0021] The rolling part is rotatably arranged at the hanging end corresponding to the locking part, and the rolling part can move in the length direction of the swing arm.

[0022] In some embodiments, a clamping structure is also provided on the lifting body. The clamping structure is provided corresponding to the swing arm structure and has a clamping portion movable in the height direction of the lifting body. The clamping portion can be clamped to the top of the blade during its movable stroke.

[0023] In some embodiments, the compression structure comprises:

[0024] A clamping arm is arranged on the hoisting body and can swing along the axis in the length direction of the hoisting body, and the clamping part is arranged at the end of the clamping arm; and

[0025] A driving device is used to drive the clamping arm to swing.

[0026] In some embodiments, the clamping arm includes a clamping arm sleeve and a telescopic arm, the clamping arm sleeve is swingably disposed on the hoisting body, and the telescopic arm is telescopically disposed on the clamping arm sleeve;

[0027] Wherein, the pressing portion is arranged at the end of the telescopic arm;

[0028] The driving device is used to drive the pressure arm sleeve to swing.

[0029] In some embodiments, the lifting body is further provided with a plurality of legs, and the plurality of legs are arranged around the lifting body and extend toward the bottom of the lifting body.

[0030] In some embodiments, the support leg is swingably arranged on the lifting body, and during its swing stroke, the support leg has a storage position close to the lifting body.

[0031] In the technical solution provided by the utility model, when the two swing arms move to the first position, the two can open to each other along the width direction of the lifting body, and the two hanging point structures are away from each other, so that the wind turbine blades can be lifted by pulling the two ends of the blade carrier. After the lifting is completed, the two swing arms can be adjusted to the second position to close the two, thereby reducing the width dimension of the wind turbine blade hanger, so that the overall structure can adapt to the size of the transport vehicle to facilitate its land transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a blade hanger for a wind turbine generator set provided by the utility model;

[0034] Figure 2 for Figure 1 A schematic diagram of a top view of a wind turbine blade hanger;

[0035] Figure 3 for Figure 1 A schematic diagram of the front view structure of a wind turbine blade hanger;

[0036] Figure 4 for Figure 1 A schematic diagram of the side view structure of the wind turbine blade hanger.

[0037] Description of Figure Numbers:

[0038]

[0039]

[0040] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] It should be noted that if a directional indication is involved in the embodiments of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0044] In the field of wind power generation, it is usually necessary to transport the various components of a wind turbine to a preset location and then assemble them. The assembly process usually includes using a blade hanger to lift the wind turbine blades to a high place for installation. However, the existing blade hangers are too large to be transported as a whole. They usually need to be disassembled into various parts and then loaded and transported. As a result, operators need to spend time assembling and disassembling the blade hangers, affecting the assembly efficiency of the wind turbine.

[0045] Analyzing the causes of the above problems, it can be seen that the traditional blade hanger cannot be folded, which makes it difficult to transport it in one piece. It only needs to set some of its structures into a foldable form, so that its size can be reduced by folding after use for easy transportation.

[0046] In view of this, the present invention aims to solve the problem that during the transportation and assembly process of the wind turbine generator set, operators need to assemble and disassemble the blade hanger, which affects the assembly efficiency of the wind turbine generator set.

[0047] in, Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a blade hanger for a wind turbine generator set provided by the utility model; Figure 2 for Figure 1 A schematic diagram of a top view of a wind turbine blade hanger; Figure 3 for Figure 1 A schematic diagram of the front view structure of a wind turbine blade hanger; Figure 4 for Figure 1 A schematic diagram of the side view structure of the wind turbine blade hanger.

[0048] See also Figure 1 to Figure 2 The wind turbine blade hanger 100 includes a hoisting body 1 and a swing arm structure 2. The swing arm structure 2 includes two swing arms 21. The two swing arms 21 are swingably arranged at both ends of the hoisting body 1 in the width direction, and have a first position of being open to each other and a second position of being closed to each other in their swing stroke. A hanging point structure 3 is respectively arranged at the end of each swing arm 21. In the first position, the two hanging point structures 3 are away from each other so as to be respectively connected to the two ends of the blade carrier.

[0049] It should be noted that, because the swing arm 21 is in a swinging arrangement, one end of the swing arm 21 is rotatably connected to the hoisting body 1, and the other end serves as its terminal end, and the swing arm 21 can swing along the axis in the height direction of the hoisting body 1, that is, the height of the hanging point structure 3 on the swing arm 21 remains unchanged during the swinging process, and of course, it can also swing along the axis in the length direction of the hoisting body 1, that is, the height of the hanging point structure 3 on the swing arm 21 changes during the swinging process, and when the swing arm 21 is in the second position, the width dimension of the wind turbine blade hanger 100 is reduced. Regardless of the swinging mode, it should be considered that the two swing arms 21 can be opened or closed to each other during the swinging activity, and only in the closed state can they contribute to the reduction of the width dimension of the wind turbine blade hanger 100, and only in the opened state can the two hanging point structures 3 be moved away from each other to facilitate the hoisting of the wind turbine blades;

[0050] It should be noted that the function of the hanging point structure 3 is to connect the end of the external blade supporting member, and the function of the blade supporting member is to lift the wind turbine blade from the bottom. Its two ends generally extend upward from both sides of the width direction of the wind turbine blade to connect to the corresponding hanging point structure 3.

[0051] In the technical solution provided by the utility model, when the two swing arms 21 move to the first position, the two can open to each other along the width direction of the lifting body 1, and the two hanging point structures 3 are away from each other, so that the wind turbine blades can be lifted by pulling the two ends of the blade carrier. After the lifting is completed, the two swing arms 21 can be adjusted to the second position to close the two, thereby reducing the width dimension of the wind turbine blade hanger 100, so that the overall structure can adapt to the size of the transport vehicle to facilitate its land transportation.

[0052] The two swing arms 21 can be arranged in a group or in multiple groups. In some embodiments, the two swing arms 21 and the two hanging point structures 3 correspond to each other to form a swing hanging group. Multiple swing hanging groups are arranged and extend in the length direction of the hoisting body 1. Compared with the solution of only setting one swing hanging group, by setting multiple swing hanging groups, the wind turbine blade can be hoisted from both ends of the length direction of the wind turbine blade, so that the center of gravity of the wind turbine blade is between the two swing hanging groups, which improves the safety of the hoisting process and can effectively prevent the wind turbine blade from becoming unstable and falling.

[0053] There are many types of structures of the hoisting body 1, for example, it can be set as a frame structure or a truss structure. Furthermore, in some embodiments, the hoisting body 1 includes a main beam 11 and multiple end beams 12, the main beam 11 is extended along the length direction; the multiple end beams 12 are arranged along the length direction and extended along the width direction, and multiple swing hanging groups are respectively arranged corresponding to the multiple end beams 12, wherein two swing arms 21 are respectively arranged at both ends of the end beams 12. By using a main beam 11 to carry multiple end beams 12, the volume of the hoisting body 1 can be minimized, the space occupation requirement is reduced, and the wind turbine blade hanger 100 can adapt to the requirements of various transport vehicles.

[0054] When the preset installation location of the wind turbine generator set is far away, land transportation may not be able to reach it. Sea and land transportation can usually be selected. Compared with land transportation, sea and land transportation has lower costs, but has higher requirements on the size of the wind turbine generator blade hanger 100. Furthermore, in some embodiments, the end beam 12 is detachably connected to the main beam 11. Since the end beam 12 is detachably connected to the main beam 11, the end beam 12 can be disassembled with the two swing arms 21 and placed in parallel with the main beam 11, thereby minimizing the space occupied by the wind turbine generator blade hanger 100 to enable it to be loaded into a container.

[0055] See also Figures 2 to 3In a specific embodiment, the main beam 11 includes a plurality of beam segments 111 arranged along the length direction, and two adjacent beam segments 111 are detachably connected; the end beam 12 is arranged corresponding to the beam segment 111. By disassembling the main beam 11 into a plurality of beam segments 111, the length dimension of the wind turbine blade hanger 100 can be reduced, so that it can make full use of the space in the height direction of the container, and also enable the container to load a larger specification of the wind turbine blade hanger 100. It should be noted that the present technical solution can also be combined with the solution of "the end beam 12 is detachably connected to the main beam 11", so that the size of the wind turbine blade hanger 100 can be reduced to a minimum, thereby making full use of the space in the container.

[0056] When the swing arm 21 is swingingly arranged along the axis in the length direction of the end beam 12, although the width dimension of the wind turbine blade hanger 100 can be reduced when the swing arm 21 is in the second position, the dimension of the wind turbine blade hanger 100 in the height direction will also be increased at the same time, and there is still a certain space occupation requirement. In view of this, further, in other embodiments, the swing arm 21 is swingingly arranged along the axis in the height direction of the end beam 12. It can be understood that the swing arm 21 swings along the axis in the height direction of the end beam 12. When it is in the second position, the swing arm 21 can be arranged side by side with the hoisting body 1, and the width dimension of the wind turbine blade hanger 100 can be reduced without increasing its dimension in the height direction. At this time, the folding effect is the best.

[0057] See also Figure 4 In some embodiments, a locking portion 33 is formed on the hanging point structure 3, and the hanging point structure 3 can move in the length direction of the swing arm 21; a plurality of matching portions 211 arranged along the length direction are formed on the swing arm 21; in the movable stroke of the hanging point structure 3, the locking portion 33 can be selectively connected to one of the matching portions 211. It should be noted that the matching connection between the locking portion 33 and the matching portion 211 can be achieved by a latch, that is, the locking portion 33 and the matching portion 211 are both pin holes. Of course, it can also be achieved in other forms, which are not limited in this embodiment; in the technical solution of this embodiment, the hanging point structure 3 is movable in the length direction of the swing arm 21, so that it can adapt to wind turbine blades of different widths, so that the wind turbine blades can be hoisted in the most stable position, and the corresponding arrangement of the locking portion 33 and the plurality of matching portions 211 enables the locking portion 33 to be longitudinally connected to the matching portion 211 at the corresponding position after the hanging point structure 3 is adjusted to a suitable position, thereby limiting the position of the hanging point structure 3 and ensuring the stability of the hoisting process.

[0058] Generally speaking, the hanging point structure 3 is set larger because it needs to withstand a larger pulling force. Therefore, it may be difficult to change the position of the hanging point structure 3 by manpower. In view of this, in some embodiments, the hanging point structure 3 includes a hanging part 31 and a rolling part 32. The hanging part 31 has two hanging ends, and the locking part 33 is formed at one of the hanging ends and the other hanging end is used to connect to the end of the blade bearing member; the rolling part 32 is rotatably arranged at the hanging end corresponding to the locking part 33, and the rolling part 32 can move in the length direction of the swing arm 21. In the technical solution of this embodiment, since the hanging part 31 is arranged on the swing arm 21 through the rolling part 32, and the rolling friction between the two is small, it is easier for the operator to adjust the hanging point structure 3 to change its position.

[0059] During the installation of wind turbine blades, the blade support is mainly responsible for lifting the blades from the bottom of the wind turbine blades. However, there is generally no limit at the top of the wind turbine blades, which may cause the wind turbine blades to slide and fall in an unexpected situation. In view of this, please refer to Figure 4 In some embodiments, a clamping structure 4 is further provided on the hoisting body 1. The clamping structure 4 is provided corresponding to the swing arm structure 2 and has a clamping portion 43 that is movable in the height direction of the hoisting body 1. The clamping portion 43 can be clamped to the top of the blade during its movable stroke. When the blades of the wind turbine generator set are placed on the blade bearing member, a downward clamping force can be generated from the top through the movement of the clamping portion 43, thereby forming a match with the blade bearing member, and limiting the movement of the blades of the wind turbine generator set from the upper and lower sides, respectively, which can effectively prevent the blades of the wind turbine generator set from sliding and falling sideways; at the same time, by providing the clamping structure 4 corresponding to the swing arm structure 2, the clamping portion 43 and the blade bearing member act on the same place of the blades of the wind turbine generator set, thereby preventing the blades of the wind turbine generator set from being damaged by bending moment.

[0060] There are many forms of activities of the clamping part 43, for example, it can be driven directly by a cylinder structure, or it can be driven directly by an electric push rod. Further, in some embodiments, the clamping structure 4 includes a clamping arm 41 and a driving device 42. The clamping arm 41 is arranged on the hoisting body 1, and can swing along the axis of the length direction of the hoisting body 1. The clamping part 43 is arranged at the end of the clamping arm 41; the driving device 42 is used to drive the clamping arm 41 to swing. In the technical scheme of this embodiment, the swing of the clamping arm 41 can drive the clamping part 43 to move in an arc path, and the axis of the clamping arm 41 swings in the length direction, and the arc path of course also includes the path in the height direction. It should be noted that there are also many driving forms for the driving device 42 to drive the clamping arm 41 to swing, for example, it can be driven by a motor rotation drive, or it can be driven to swing by a hydraulic cylinder structure and the clamping arm 41 articulated connection. The specific form is not limited in this embodiment.

[0061] In order to improve the clamping radius of the clamping part 43, further, in some embodiments, the clamping arm 41 includes a clamping arm sleeve 411 and a telescopic arm 412, the clamping arm sleeve 411 is swingably set on the lifting body 1, and the telescopic arm 412 is telescopically set on the clamping arm sleeve 411; wherein, the clamping part 43 is set at the end of the telescopic arm 412; the driving device 42 is used to drive the clamping arm sleeve 411 to swing. It should be noted that the telescopic arm 412 can adjust its position on the clamping arm sleeve 411 under the direct drive of the hydraulic cylinder, and can also manually adjust its position by matching the pin and the socket, which is not limited in this embodiment. By adjusting the position of the telescopic arm 412 on the clamping arm sleeve 411, the clamping part 43 can be extended to different swing radii, so that the range of action of the clamping part 43 can be changed, thereby improving the adaptability of the clamping structure 4.

[0062] In some embodiments, the lifting body 1 is further provided with a plurality of legs 5, which are arranged around the lifting body 1 and extend toward the bottom of the lifting body 1. Through the provision of the legs 5, when the wind turbine blade hanger 100 is placed on the ground, the lifting body 1 does not come into direct contact with the ground, and the lifting body 1 can be prevented from getting damp and rusting during long-term storage, thereby increasing the service life of the wind turbine blade hanger 100.

[0063] When the hanging point structure 3 lifts the blade bearing member, due to the presence of the legs 5, the wind turbine blade may collide with it and be damaged, and the lifting height of the hanging point structure 3 will also be reduced. In view of this, further, in some embodiments, the legs 5 are swingably arranged on the hoisting body 1, and in their swinging stroke, the legs 5 have a storage position close to the hoisting body 1. In the process of hoisting the wind turbine blade, the legs 5 can be adjusted to the storage position, thereby avoiding the legs 5 from interfering with the rise of the wind turbine blade, avoiding the occurrence of collisions, and allowing the hanging point structure 3 to hoist the wind turbine blade to a higher height.

[0064] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made under the concept of the present invention using the contents of the specification and drawings of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A wind turbine blade hanger, characterized in that: include: Lifting the main body (1); as well as, The swing arm structure (2) comprises two swing arms (21), the two swing arms (21) are swingably arranged at two ends of the width direction of the hoisting body (1), and have a first position of being mutually open and a second position of being mutually closed in their swing stroke, and a hanging point structure (3) is respectively arranged at the end of each swing arm (21); Wherein, in the first position, the two hanging point structures (3) are away from each other so as to be respectively connected to the two ends of the blade supporting member.

2. The wind turbine blade hanger according to claim 1, characterized in that: The two swing arms (21) and the two hanging point structures (3) correspond to each other to form a swing hanging group. A plurality of swing hanging groups are provided and extend in the length direction of the hanging body (1).

3. The wind turbine blade hanger according to claim 2, characterized in that: The hoisting body (1) comprises: A main beam (11) is extended along the length direction; and A plurality of end beams (12) are arranged along the length direction and extend along the width direction, and a plurality of swing suspension groups are respectively arranged corresponding to the plurality of end beams (12), wherein the two swing arms (21) are respectively arranged at two ends of the end beam (12).

4. The wind turbine blade hanger according to claim 3, characterized in that: The end beam (12) is detachably connected to the main beam (11).

5. The wind turbine blade hanger according to claim 3 or 4, characterized in that: The main beam (11) comprises a plurality of beam body segments (111) arranged along the length direction, and two adjacent beam body segments (111) are detachably connected; Wherein, the end beam (12) is arranged corresponding to the beam body segment (111).

6. The wind turbine blade hanger according to claim 1, characterized in that: A locking portion (33) is formed on the hanging point structure (3), and the hanging point structure (3) is movable in the length direction of the swing arm (21); The swing arm (21) is formed with a plurality of matching portions (211) arranged along its length direction; During the movable travel of the hanging point structure (3), the locking portion (33) can be selectively connected to one of the matching portions (211).

7. The wind turbine blade hanger according to claim 6, characterized in that: The hanging point structure (3) comprises: A hanging portion (31) having two hanging ends, wherein the locking portion (33) is formed at one of the hanging ends and the other hanging end is used to be connected to an end of a blade carrier; and The rolling part (32) is rotatably arranged at the hanging end corresponding to the locking part (33), and the rolling part (32) can move in the length direction of the swing arm (21).

8. The wind turbine blade hanger according to claim 1, characterized in that: A clamping structure (4) is also provided on the hoisting body (1). The clamping structure (4) is provided corresponding to the swing arm structure (2) and has a clamping portion (43) that is movable in the height direction of the hoisting body (1). The clamping portion (43) can be clamped to the top of the blade during its movable stroke.

9. The wind turbine blade hanger according to claim 8, characterized in that: The pressing structure (4) comprises: A clamping arm (41) is arranged on the hoisting body (1) and is swingable along an axis in the length direction of the hoisting body (1); the clamping portion (43) is arranged at the end of the clamping arm (41); and A driving device (42) is used to drive the clamping arm (41) to swing.

10. The wind turbine blade hanger according to claim 9, characterized in that: The clamping arm (41) comprises a clamping arm sleeve (411) and a telescopic arm (412); the clamping arm sleeve (411) is swingably arranged on the hoisting body (1); and the telescopic arm (412) is telescopically arranged on the clamping arm sleeve (411); Wherein, the pressing portion (43) is arranged at the end of the telescopic arm (412); The driving device (42) is used to drive the pressure arm sleeve (411) to swing.

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