Suspension arm for assembly operation of wind generating set

Abstract

The utility model discloses a suspension arm for assembly operation of a wind generating set, which comprises a hoisting platform horizontally arranged, a suspension arm mechanism used for forming a telescopic suspension arm structure, a hoisting mechanism used for anti-drop hoisting of accessories of the generating set, and a buffer mechanism used for providing buffer support for the suspension arm, the lifting arm mechanism is arranged on one side of the upper end of the lifting platform, the lifting mechanism is assembled at one end of the lifting arm mechanism, and the buffering mechanism is arranged at the upper end of the lifting platform corresponding to the lifting arm mechanism. Components in the wind generating set are hoisted and assembled through the hoisting basket, the components can be prevented from falling off while the hoisting stability is guaranteed, the hoisting requirements of the components of different wind generating sets in different environments are met, the buffering mechanism is arranged, buffering supporting can be provided for the hoisting arm, and the hoisting efficiency is improved. And rigid collision and damage caused by large potential energy when the suspension arm falls back are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting construction, in particular to a hoisting arm for assembling operations of a wind turbine generator set. Background Art

[0002] In the prior art, the nacelle of a wind turbine generator set is installed on a tower, and the tower height has been increased from the initial tens of meters to about 170 meters. In addition, the parts of the wind turbine generator set are heavy, so a lifting assembly is required for lifting operations during installation and maintenance. The main technical requirements for the lifting assembly are simple operation, safety and reliability, small space occupation, and low cost. The lifting assembly mainly consists of a cantilever crane and an electric chain hoist. During use, the electric chain hoist motor, chain box and chain are hung on the cantilever crane through a connecting pin shaft. Since the nacelle vibrates greatly at high altitudes, the chain box and chain are constantly shaking, and the fatigue load of the connecting pin shaft is large, and there is a large risk of the chain box and chain falling. The existing lifting assembly mainly consists of two major parts: a cantilever crane and an electric chain hoist; wherein the cantilever crane is mainly composed of a cantilever crane support beam, an inner folding arm of the cantilever crane, and an outer folding arm of the cantilever crane; the electric chain hoist is mainly composed of an electric chain hoist motor, an electric chain hoist chain and a chain box. The cantilever crane support beam and the inner folding arm of the cantilever crane, the inner folding arm of the cantilever crane and the outer folding arm of the cantilever crane, the outer folding arm of the cantilever crane and the chain electric hoist motor, and the chain electric hoist motor and the chain electric hoist chain and chain box are connected by different pins respectively. However, the existing cantilever crane has a loose structure, the chain box shakes severely, the stability is poor, there is a certain risk of falling off, and there is a great risk of breakage of the connecting pins.

[0003] The Chinese utility model patent with application number: 201720289827.8 discloses a folding truss arm hoisting device for installing and maintaining wind turbine generator sets, which includes a tower, a folding truss arm hoisting platform, a plurality of clamping brake shoes and a plurality of supporting links; the clamping brake shoes are installed at the top of the tower, and the folding truss arm hoisting platform is connected to the clamping brake shoes through the supporting links; at least two folding truss arm cranes are fixed on the folding truss arm hoisting platform, and the folding truss arm crane includes a lifting arm with adjustable extension position and length. However, the folding truss arm hoisting device for installing and maintaining wind turbine generator sets has a relatively complex structure. It uses steel ropes to hoist and assemble components in the wind turbine generator set, which causes it to shake severely, has poor stability, and has a certain risk of falling off. In addition, it cannot provide buffer support for the boom, which causes rigid collision and damage to the boom when it falls back due to its large potential energy. Utility Model Content

[0004] The utility model aims to provide a suspension arm for assembling operation of a wind power generator set.

[0005] In order to achieve the above purpose, the technical solution proposed by the utility model is:

[0006] A boom for wind turbine generator assembly operations comprises a hoisting platform, which is arranged horizontally, and also comprises a boom mechanism for forming a telescopic boom structure, a hoisting mechanism for preventing generator set accessories from falling off, and a buffer mechanism for providing buffer support for the boom, wherein the boom mechanism is arranged on one side of the upper end of the hoisting platform, the hoisting mechanism is assembled at one end of the boom mechanism, and the buffer mechanism is configured at the upper end of the hoisting platform corresponding to the boom mechanism.

[0007] The boom mechanism includes a boom base, a supporting boom and a telescopic boom, the boom base is arranged on one side of the upper end of the lifting platform and is rotatably connected to the lifting platform, the supporting boom is arranged on one side of the upper part of the boom base and one end thereof is rotatably connected to the boom base, the telescopic boom is provided with several groups, several groups of the telescopic booms are sequentially stacked and arranged on the inner side of one end of the supporting boom away from the boom base and plugged into the supporting boom, one end of the telescopic boom protrudes from the supporting boom or the previous group of telescopic arms, and telescopic components are arranged between the telescopic arm and the supporting arm and between several groups of the telescopic arms.

[0008] The telescopic assembly includes a telescopic base, a telescopic hydraulic rod and a telescopic mounting seat, the telescopic base is arranged on the upper part of one end of the supporting boom close to the telescopic boom and is fixedly connected to the supporting boom, the telescopic hydraulic rod is arranged on a side of the telescopic base away from the supporting boom and is fixedly connected to the supporting boom, the telescopic mounting seat is provided with several groups, several groups of the telescopic mounting seats are respectively arranged on several groups of telescopic booms protruding from one end of the supporting boom or the previous group of telescopic booms and are fixedly connected to the corresponding telescopic booms, the output end of the telescopic hydraulic rod is rotatably connected to the corresponding telescopic mounting seat through a rotating shaft, and hydraulic support rods are arranged between several groups of the telescopic mounting seats.

[0009] It also includes a lifting component, which includes a lifting hydraulic rod and a lifting connecting seat. The lifting hydraulic rod is arranged on one side of the lower part of the boom base and is rotatably connected to the boom base through a rotating shaft. The lifting connecting seat is arranged at the lower part of the supporting boom corresponding to the lifting hydraulic rod and is slidably connected to the supporting boom. The output end of the lifting hydraulic rod is rotatably connected to the lifting connecting seat through a rotating shaft.

[0010] The lifting mechanism includes a lifting base block, a lifting mounting plate and a lifting basket. The lifting base block is arranged at one end of the telescopic boom away from the supporting boom and is fixedly connected to the telescopic boom. The lifting mounting plate is arranged at one end of the lifting base block and is rotatably connected to the lifting base block through a rotating shaft. The lifting basket is arranged on one side of the lifting mounting plate and is connected to the lifting mounting plate through a mounting pin.

[0011] The buffer mechanism includes a buffer hydraulic cylinder, a buffer substrate, a buffer spring and a buffer support plate. The buffer hydraulic cylinder is arranged at the upper end of the hoisting platform and is fixedly connected to the hoisting platform. The buffer substrate is arranged at the output end of the buffer hydraulic cylinder and is fixedly connected to the output end of the buffer hydraulic cylinder. The buffer spring is provided with two groups. The two groups of buffer springs are symmetrically arranged at the upper end of the buffer substrate and are fixedly connected to the buffer substrate. The buffer support plate is arranged at the upper ends of the two groups of buffer springs and are fixedly connected to the buffer springs.

[0012] It also includes a buffer protection pad, which is arranged on the upper end of the buffer support plate and fixedly connected to the buffer support plate.

[0013] It also includes a rotating mechanism, which includes a rotating base and a lifting turntable. The rotating base is arranged on one side of the upper end of the lifting platform corresponding to the boom base and is fixedly connected to the lifting platform. The lifting turntable is arranged at the upper end of the rotating base and is fixedly connected to the rotating base. The boom base is arranged at the output end of the lifting turntable and is fixedly connected to the output end of the lifting turntable. The boom base is rotatably connected to the lifting platform through the rotating mechanism.

[0014] The hoisting platform consists of a platform base plate and platform steel. The platform base plate is arranged horizontally. The platform steel is provided with a plurality of groups. The plurality of groups of platform steel arrays are arranged at the bottom of the platform base plate.

[0015] It also includes mounting end tubes, which are provided with four groups. The four groups of mounting end tubes are respectively arranged at the four corners of the hoisting platform and are fixedly connected to the hoisting platform.

[0016] The beneficial effects of the utility model are:

[0017] A boom mechanism is provided to cooperate with a hoisting mechanism, and the components in the wind turbine are hoisted and assembled through a hoisting basket, which can ensure the hoisting stability while avoiding the components from falling off, meet the hoisting requirements of different wind turbine components in different environments, and effectively improve the safety, reliability and assembly efficiency of high-altitude assembly operations of wind turbines. A buffer mechanism is provided to provide buffer support for the boom, avoid rigid collision and damage due to large potential energy when the boom falls back, and increase the service life of the boom. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the buffer mechanism of the utility model;

[0020] Figure 3 It is a schematic diagram of the cooperation between the rotating mechanism and the boom mechanism of the utility model.

[0021] In the figure: 1. lifting platform; 2. boom base; 3. supporting boom; 4. telescopic boom; 5. telescopic base; 6. telescopic hydraulic rod; 7. telescopic mounting seat; 8. lifting hydraulic rod; 9. lifting connecting seat; 10. lifting base block; 11. lifting mounting plate; 12. lifting basket; 13. buffer hydraulic cylinder; 14. buffer base plate; 15. buffer spring; 16. buffer support plate; 17. buffer protection pad; 18. rotating base; 19. lifting turntable; 20. installation end pipe. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] A crane for wind turbine generator assembly operation includes a lifting platform 1, which is arranged horizontally, and also includes a crane mechanism for forming a telescopic crane structure, a crane mechanism for anti-drop lifting of generator set accessories, and a buffer mechanism for providing buffer support for the crane. The crane mechanism is arranged on one side of the upper end of the lifting platform 1, the lifting mechanism is assembled at one end of the crane mechanism, and the buffer mechanism is arranged at the upper end of the lifting platform 1 corresponding to the crane mechanism. The overall structural schematic diagram of the utility model is as shown in FIG. Figure 1 shown.

[0024] The boom mechanism includes a boom base 2, a supporting boom 3 and a telescopic boom 4. The boom base 2 is arranged on one side of the upper end of the hoisting platform 1 and is rotatably connected to the hoisting platform 1. The supporting boom 3 is arranged on one side of the upper part of the boom base 2 and one end of the supporting boom 3 is rotatably connected to the boom base 2. The telescopic boom 4 is provided with a plurality of groups. The plurality of groups of telescopic booms 4 are sequentially stacked and arranged on the inner side of one end of the supporting boom 3 away from the boom base 2 and plugged with the supporting boom 3. One end of the telescopic boom 4 protrudes from the supporting boom 3 or the upper group of telescopic booms 4. The telescopic boom 4 and the supporting boom 3 and the plurality of groups of telescopic booms are connected. A telescopic assembly is arranged between the retractable boom 4, and the boom mechanism cooperates with the boom base 2, the supporting boom 3 and the telescopic boom 4 to form a telescopic boom structure to meet the hoisting and assembly requirements of the wind turbine accessories, wherein the boom base 2 is used to provide installation support for the supporting boom 3, the supporting boom 3 is used to serve as the main body of the boom structure and provide installation support for the telescopic boom 4, the telescopic boom 4 is used to form a telescopic boom structure together with the supporting boom 3 to meet the hoisting and assembly requirements of the wind turbine accessories, and the number of telescopic booms 4 can be adjusted according to actual usage requirements.

[0025] The telescopic assembly includes a telescopic base 5, a telescopic hydraulic rod 6 and a telescopic mounting seat 7. The telescopic base 5 is arranged on the upper part of one end of the supporting boom 3 close to the telescopic boom 4 and is fixedly connected to the supporting boom 3. The telescopic hydraulic rod 6 is arranged on the side of the telescopic base 5 away from the supporting boom 3 and is fixedly connected to the supporting boom 3. The telescopic mounting seat 7 is provided with a plurality of groups. The plurality of groups of telescopic mounting seats 7 are respectively arranged on one end of a plurality of groups of telescopic booms 4 protruding from the supporting boom 3 or the upper group of telescopic booms 4 and are fixedly connected to the corresponding telescopic booms 4. The output end of the telescopic hydraulic rod 6 is rotatably connected to the corresponding telescopic mounting seat 7 through a rotating shaft. A hydraulic rod 6 is arranged between the plurality of groups of telescopic mounting seats 7. The pressure support rod and the telescopic assembly cooperate with the telescopic base 5, the telescopic hydraulic rod 6 and the telescopic mounting seat 7 to realize the telescopic action between the supporting boom 3 and the telescopic boom 4 and between several groups of telescopic booms 4, wherein the telescopic base 5 is used to provide installation support for the telescopic hydraulic rod 6 to install the telescopic hydraulic rod 6 on the supporting boom 3, the telescopic hydraulic rod 6 is used to realize the telescopic action between the supporting boom 3 and the telescopic boom 4 and between several groups of telescopic booms 4 through its own telescopic action, the telescopic mounting seat 7 is used to install and connect the output end of the telescopic hydraulic rod 6 with the telescopic boom 4, and the hydraulic support rod is used to realize the telescopic action between several groups of telescopic booms 4.

[0026] It also includes a lifting component, which includes a lifting hydraulic rod 8 and a lifting connecting seat 9. The lifting hydraulic rod 8 is arranged on the lower side of the boom base 2 and is rotatably connected to the boom base 2 through a rotating shaft. The lifting connecting seat 9 is arranged at the lower part of the supporting boom 3 corresponding to the lifting hydraulic rod 8 and is slidably connected to the supporting boom 3. The output end of the lifting hydraulic rod 8 is rotatably connected to the lifting connecting seat 9 through a rotating shaft. The lifting component cooperates with the lifting hydraulic rod 8 and the lifting connecting seat 9 to realize the lifting and lowering of the boom mechanism, wherein the lifting hydraulic rod 8 is used to realize the lifting and lowering of the boom mechanism through its telescopic action, and the lifting connecting seat 9 is used to realize the installation connection between the lifting hydraulic rod 8 and the supporting boom 3.

[0027] The lifting mechanism includes a lifting base block 10, a lifting installation plate 11 and a lifting basket 12. The lifting base block 10 is arranged at one end of the telescopic boom 4 away from the supporting boom 3 and is fixedly connected to the telescopic boom 4. The lifting installation plate 11 is arranged at one end of the lifting base block 10 and is rotatably connected to the lifting base block 10 through a rotating shaft. The lifting basket 12 is arranged on one side of the lifting installation plate 11 and is connected to the lifting installation plate 11 through a mounting pin. The lifting mechanism cooperates with the lifting base block 10, the lifting installation plate 11 and the lifting basket 12 to perform protective lifting and assembly operations on components in the wind turbine generator set, wherein the lifting base block 10 is used as a mounting structure at the end of the telescopic boom 4, the lifting installation plate 11 is used to provide mounting support for the lifting basket 12 and to install and connect the lifting basket 12 with the lifting base block 10, and the lifting basket 12 is used to perform protective lifting and assembly operations on components in the wind turbine generator set under the action of the boom mechanism.

[0028] The buffer mechanism includes a buffer hydraulic cylinder 13, a buffer substrate 14, a buffer spring 15 and a buffer support plate 16. The buffer hydraulic cylinder 13 is arranged at the upper end of the hoisting platform 1 and is fixedly connected to the hoisting platform 1. The buffer substrate 14 is arranged at the output end of the buffer hydraulic cylinder 13 and is fixedly connected to the output end of the buffer hydraulic cylinder 13. The buffer spring 15 is provided with two groups. The two groups of buffer springs 15 are symmetrically arranged at the upper end of the buffer substrate 14 and are fixedly connected to the buffer substrate 14. The buffer support plate 16 is arranged at the upper ends of the two groups of buffer springs 15 and is fixedly connected to the buffer spring 15. It also includes a buffer protection pad 17, which is arranged at the upper end of the buffer support plate 16 and is fixedly connected to the buffer support plate 16. The buffer mechanism is provided with a buffer The hydraulic cylinder 13, the buffer base plate 14, the buffer spring 15 and the buffer support plate 16 cooperate to provide buffer support for the boom, wherein the buffer hydraulic cylinder 13 is used to provide installation support for the buffer base plate 14, the buffer base plate 14 is used to provide installation support for the buffer spring 15, the buffer spring 15 is used to provide elastic support for the buffer support plate 16, the buffer support plate 16 is used to provide buffer support for the boom under the action of the buffer spring 15, and the buffer protection pad 17 is used as a protective structure on the buffer support plate 16 to protect the boom during the buffer support process. The height of the buffer base plate 14 can be adjusted by the telescopic action of the output end of the buffer hydraulic rod, thereby adjusting the height of the buffer mechanism. The schematic diagram of the buffer mechanism structure of the utility model is shown in Figure 2 shown.

[0029] It also includes a rotating mechanism, which includes a rotating base 18 and a lifting turntable 19. The rotating base 18 is arranged on one side of the upper end of the lifting platform 1 corresponding to the boom base 2 and is fixedly connected to the lifting platform 1. The lifting turntable 19 is arranged at the upper end of the rotating base 18 and is fixedly connected to the rotating base 18. The boom base 2 is arranged at the output end of the lifting turntable 19 and is fixedly connected to the output end of the lifting turntable 19. The boom base 2 is rotatably connected to the lifting platform 1 through the rotating mechanism. The rotating mechanism cooperates with the rotating base 18 and the lifting turntable 19 to realize the rotation of the boom mechanism, wherein the rotating base 18 is used to provide installation support for the lifting turntable 19, and the lifting turntable 19 is used to realize the rotation of the boom mechanism to meet the lifting requirements. The schematic diagram of the cooperation between the rotating mechanism and the boom mechanism of the utility model is shown in Figure 3 shown.

[0030] The lifting platform 1 is composed of a platform base plate and platform steel. The platform base plate is arranged horizontally. The platform steel is provided with several groups. The several groups of platform steel arrays are arranged at the bottom of the platform base plate. It also includes mounting end pipes 20. There are four groups of mounting end pipes 20. The four groups of mounting end pipes 20 are respectively arranged at the four corners of the lifting platform 1 and are fixedly connected to the lifting platform 1. The mounting end pipes 20 are used as the mounting structure at the end of the lifting platform 1 to meet the installation requirements of the lifting platform 1.

[0031] Working principle:

[0032] When it is necessary to lift the accessories of the wind turbine generator set, the accessories of the wind turbine generator set are placed in the lifting basket 12, and the lifting equipment is used to control the lifting component to drive the boom mechanism to lift. During the lifting process, the telescopic component is used to control the boom mechanism to telescope, and at the same time, the rotating mechanism drives the boom mechanism to rotate to realize the lifting operation of the accessories of the wind turbine generator set. After the lifting is completed, the lifting component drives the boom mechanism to fall back, and the buffer mechanism provides buffer support for the boom through the buffer support plate 16 and the buffer protection pad 17 under the action of the buffer hydraulic cylinder 13 and the buffer spring 15, so as to avoid rigid collision and damage due to the large potential energy when the boom falls back.

[0033] The beneficial effect of the utility model is that a boom mechanism is provided to cooperate with a hoisting mechanism, and components in the wind turbine generator set are hoisted and assembled through a hoisting basket, which can ensure hoisting stability while preventing components from falling off, meet the hoisting requirements of different wind turbine generator set components in different environments, and effectively improve the safety, reliability and assembly efficiency of high-altitude assembly operations of wind turbine generator sets. A buffer mechanism is provided to provide buffer support for the boom, avoid rigid collision and damage due to large potential energy when the boom falls back, and increase the service life of the boom.

[0034] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A crane arm for wind turbine generator assembly operation, comprising a hoisting platform (1), wherein the hoisting platform (1) is arranged horizontally, and is characterized in that: It also includes a boom mechanism for forming a telescopic boom structure, a hoisting mechanism for preventing the generator set accessories from falling off and a buffer mechanism for providing buffer support for the boom, the boom mechanism being arranged on one side of the upper end of the hoisting platform (1), the hoisting mechanism being assembled on one end of the boom mechanism, and the buffer mechanism being arranged on the upper end of the hoisting platform (1) corresponding to the boom mechanism.

2. A wind turbine generator assembly boom as claimed in claim 1, characterized in that: The boom mechanism comprises a boom base (2), a supporting boom (3) and a telescopic boom (4); the boom base (2) is arranged on one side of the upper end of the hoisting platform (1) and is rotatably connected to the hoisting platform (1); the supporting boom (3) is arranged on one side of the upper part of the boom base (2) and one end thereof is rotatably connected to the boom base (2); the telescopic boom (4) is provided with a plurality of groups; the plurality of groups of telescopic booms (4) are sequentially stacked and arranged on the inner side of one end of the supporting boom (3) away from the boom base (2) and plugged into the supporting boom (3); one end of the telescopic boom (4) protrudes from the supporting boom (3) or the previous group of telescopic booms (4); telescopic components are arranged between the telescopic boom (4) and the supporting boom (3) and between the plurality of groups of telescopic booms (4).

3. A wind turbine generator assembly boom as claimed in claim 2, characterized in that: The telescopic assembly comprises a telescopic base (5), a telescopic hydraulic rod (6) and a telescopic mounting seat (7); the telescopic base (5) is arranged on the upper part of one end of the supporting boom (3) close to the telescopic boom (4) and is fixedly connected to the supporting boom (3); the telescopic hydraulic rod (6) is arranged on a side of the telescopic base (5) away from the supporting boom (3) and is fixedly connected to the supporting boom (3); the telescopic mounting seat (7) is provided in a plurality of groups; the plurality of groups of telescopic mounting seats (7) are respectively arranged at one end of the plurality of groups of telescopic booms (4) protruding from the supporting boom (3) or the upper group of telescopic booms (4) and are fixedly connected to the corresponding telescopic booms (4); the output end of the telescopic hydraulic rod (6) is rotatably connected to the corresponding telescopic mounting seat (7) via a rotating shaft; and a hydraulic support rod is arranged between the plurality of groups of telescopic mounting seats (7).

4. A wind turbine generator assembly boom as claimed in claim 3, characterized in that: It also includes a lifting component, which includes a lifting hydraulic rod (8) and a lifting connecting seat (9). The lifting hydraulic rod (8) is arranged on one side of the lower part of the boom base (2) and is rotatably connected to the boom base (2) through a rotating shaft. The lifting connecting seat (9) is arranged at the lower part of the supporting boom (3) corresponding to the lifting hydraulic rod (8) and is slidably connected to the supporting boom (3). The output end of the lifting hydraulic rod (8) is rotatably connected to the lifting connecting seat (9) through a rotating shaft.

5. A wind turbine generator assembly boom as claimed in claim 4, characterized in that: The hoisting mechanism comprises a hoisting base block (10), a hoisting installation plate (11) and a hoisting basket (12); the hoisting base block (10) is arranged at one end of the telescopic boom (4) away from the supporting boom (3) and is fixedly connected to the telescopic boom (4); the hoisting installation plate (11) is arranged at one end of the hoisting base block (10) and is rotatably connected to the hoisting base block (10) via a rotating shaft; and the hoisting basket (12) is arranged on one side of the hoisting installation plate (11) and is connected to the hoisting installation plate (11) via a mounting pin.

6. A wind turbine generator assembly boom as claimed in claim 5, characterized in that: The buffer mechanism comprises a buffer hydraulic cylinder (13), a buffer base plate (14), a buffer spring (15) and a buffer support plate (16); the buffer hydraulic cylinder (13) is arranged at the upper end of the hoisting platform (1) and is fixedly connected to the hoisting platform (1); the buffer base plate (14) is arranged at the output end of the buffer hydraulic cylinder (13) and is fixedly connected to the output end of the buffer hydraulic cylinder (13); two groups of buffer springs (15) are provided, and the two groups of buffer springs (15) are symmetrically arranged at the upper end of the buffer base plate (14) and are fixedly connected to the buffer base plate (14); and the buffer support plate (16) is arranged at the upper ends of the two groups of buffer springs (15) and is fixedly connected to the buffer springs (15).

7. A wind turbine generator assembly boom as claimed in claim 6, characterized in that: It also comprises a buffer protection pad (17), wherein the buffer protection pad (17) is arranged on the upper end of the buffer support plate (16) and is fixedly connected to the buffer support plate (16).

8. A wind turbine generator assembly boom as claimed in claim 7, characterized in that: The invention also comprises a rotating mechanism, which comprises a rotating base (18) and a hoisting turntable (19); the rotating base (18) is arranged on one side of the upper end of the hoisting platform (1) corresponding to the boom base (2) and is fixedly connected to the hoisting platform (1); the hoisting turntable (19) is arranged on the upper end of the rotating base (18) and is fixedly connected to the rotating base (18); the boom base (2) is arranged at the output end of the hoisting turntable (19) and is fixedly connected to the output end of the hoisting turntable (19); and the boom base (2) is rotationally connected to the hoisting platform (1) via the rotating mechanism.

9. A wind turbine generator assembly boom as claimed in claim 8, characterized in that: The hoisting platform (1) is composed of a platform base plate and platform steel. The platform base plate is arranged horizontally. The platform steel is provided in a plurality of groups. The plurality of groups of platform steel are arranged in array at the bottom of the platform base plate.

10. A wind turbine generator assembly boom as claimed in claim 9, characterized in that: It also comprises mounting end pipes (20), wherein four groups of the mounting end pipes (20) are provided, and the four groups of the mounting end pipes (20) are respectively arranged at the four corners of the hoisting platform (1) and are fixedly connected to the hoisting platform (1).

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