A multi-angle adjusting disc turning device

Abstract

The application discloses an external multi-angle adjusting disc turning device, which comprises a flange connecting assembly, a main body, a hoisting device and a counterweight assembly. The flange connecting assembly is used for fixing and installing the disc turning device with a wind turbine generator system. The main body serves as a frame of the disc turning device, and one end of the main body is hinged to the flange connecting assembly through an adjusting assembly. The hoisting device is hinged to the middle part of the main body, and provides power for the disc turning device. The counterweight assembly is used for adjusting the balance of the disc turning device, and is fixed to the end of the main body away from the flange connecting assembly. The disc turning device is not limited by the internal space of the wind turbine, can be adapted to various wind turbine generator systems, has high reusability, reduces cost, and is adjusted by multiple assemblies. During installation, the disc turning device is kept stable, and is more flexible and convenient to use. Meanwhile, the disc turning device can meet the requirement of multi-angle disc turning, has simple structure, is convenient and fast to operate, is high in practicality, and is low in cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wind power generation, in particular to an externally mounted multi-angle adjusting turning device. BACKGROUND

[0002] At present, the wind power industry is developing rapidly, and the installed capacity of wind turbines is increasing, so the installation and construction of wind turbine generators are facing great challenges. The horizontal single-blade hoisting technology is mature, and has the advantages of low hoisting difficulty, small construction space required, low hoisting cost, high efficiency, etc. However, the horizontal single-blade hoist needs to be turned at different angles multiple times during the installation of the blade to ensure that each blade is installed horizontally.

[0003] The traditional turning device is generally installed inside the wind turbine, uses a hydraulic device and is equipped with a generator for construction operation. The installation and disassembly process of this set of device is complex, and the price is expensive, the universality is poor, and the production cycle is long. SUMMARY

[0004] The purpose of the present application is to provide an externally mounted multi-angle adjusting turning device to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the present application provides the following scheme: the present application provides an externally mounted multi-angle adjusting turning device, comprising

[0006] A flange connecting assembly is used to fixedly install the turning device with the wind turbine generator set;

[0007] A main body is used as a frame of the turning device, one end of the main body is hinged with the flange connecting assembly through an adjusting assembly;

[0008] A hoisting device is hinged with the middle part of the main body, and the hoisting device provides power for the turning device;

[0009] A counterweight assembly is used to adjust the balance of the turning device, and the counterweight assembly is fixedly connected with one end of the main body away from the flange connecting assembly.

[0010] Preferably, the adjusting assembly comprises a plurality of first hinge seats fixedly connected with the flange connecting assembly and a plurality of second hinge seats fixedly connected with the main body, the first hinge seats are correspondingly arranged with the second hinge seats, and the first hinge seats are hinged with the second hinge seats through a hinge assembly.

[0011] Preferably, when the second blade is installed, the hinge assembly comprises a pin shaft, and all the first hinges and the second hinges are hingedly connected to each other through the pin shaft; when the third blade is installed, the hinge assembly comprises an adjusting rod, two ends of the adjusting rod are respectively hingedly connected to corresponding first hinges and second hinges on the top surface through the pin shaft, and corresponding first hinges and second hinges on the lower end surface are hingedly connected through the pin shaft.

[0012] Preferably, the main body comprises a first main beam; one end of the first main beam is fixedly connected to the second hinge, the other end of the first main beam is fixedly connected to one end of a second main beam through a flange assembly, the other end of the second main beam is fixedly connected to a counterweight assembly; the hoisting device is arranged to be hingedly connected to the second main beam.

[0013] Preferably, the lower end surfaces of the first main beam and the second main beam are respectively fixedly connected to support feet; the ends of the first main beam and the second main beam away from each other are respectively provided with a cable wind rope.

[0014] Preferably, the hoisting device comprises a connecting shaft fixedly connected to the two side surfaces of the second main beam, a lifting arm is rotatably connected to the connecting shaft, a top end of the lifting arm is detachably connected to a lifting hook of a crane; a brake device is arranged at a bottom end of the lifting arm.

[0015] Preferably, the counterweight assembly comprises a fixed counterweight fixedly installed on the second main beam, and an adjustable counterweight part is detachably connected to the fixed counterweight.

[0016] Preferably, when the second blade is installed, the adjustable counterweight part comprises a first adjustable counterweight, and the first adjustable counterweight is fixedly installed at a bottom end of the fixed counterweight.

[0017] Preferably, when the third blade is installed, the adjustable counterweight comprises the first adjustable counterweight and a second adjustable counterweight, and the first adjustable counterweight and the second adjustable counterweight are both installed at a top end of the fixed counterweight.

[0018] Preferably, the flange connection assembly comprises a connecting flange matched with the wind turbine generator set, and the connecting flange is fixedly installed on the wind turbine generator set through a stud bolt.

[0019] The application discloses the following technical effects: the application discloses an external hanging type multi-angle adjusting disc wheel device, which is installed on a wind turbine generator set through a flange connecting assembly, is convenient to install and dismount, and can be reused; the flange connecting assembly is hinged to the main body through an adjusting assembly, so that the included angle between the flange connecting assembly and the ground can be conveniently and quickly changed, and the purpose of greatly adjusting the angle is achieved; the hoisting device is hinged to the main body, so that the relative movement between the hoisting device and the main body can be conveniently controlled, the stability in the disc wheel process is ensured, meanwhile, the rotation of the main body with the hoisting device as the shaft is not affected, the smoothness of the rotation in the disc wheel process is ensured; the counterweight assembly is arranged at the tail end of the main body, provides the weight required for the torque in the disc wheel process, the weight of the counterweight assembly is convenient to adjust, the gravity center of the disc wheel device can be conveniently adjusted, and the stability in the disc wheel process is ensured. The disc wheel device is not limited by the internal space of the wind turbine, can be adapted to various wind turbine generator sets, has high reuse rate, reduces cost, multiple assemblies are matched to adjust, is kept stable during installation, is more flexible and convenient during use, meanwhile, the multi-angle disc wheel requirement can be met, the structure is simple, the disc wheel operation is convenient and quick, the practicality is high, and the cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0021] Figure 1 It is a structural schematic view when the disc wheel second blade of the present application is turned;

[0022] Figure 2 It is a top view of the adjusting assembly when the disc wheel second blade of the present application is turned;

[0023] Figure 3 It is an initial state when the disc wheel second blade of the present application is turned;

[0024] Figure 4 It is a final state when the disc wheel second blade of the present application is turned;

[0025] Figure 5 It is a structural schematic view when the disc wheel third blade of the present application is turned;

[0026] Figure 6 It is a top view of the adjusting assembly when the disc wheel third blade of the present application is turned;

[0027] Figure 7 It is an initial state when the disc wheel third blade of the present application is turned;

[0028] Figure 8 It is a final state when the disc wheel third blade of the present application is turned;

[0029] Wherein, 1, wind turbine; 2, flange connection assembly; 3, main body; 4, adjusting assembly; 5, hoisting device; 6, counterweight assembly; 7, first blade; 8, second blade; 9, crane; 21, connecting flange; 22, stud bolt; 23, end beam; 31, first main beam; 32, second main beam; 33, support foot; 34, cable wind rope; 41, first hinge seat; 42, second hinge seat; 43, pin shaft; 44, adjusting rod; 51, connecting shaft; 52, hoist arm; 53, brake device; 61, fixed counterweight; 62, first adjustable counterweight; 63, second adjustable counterweight. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] Reference Figures 1-8 The present application provides an external multi-angle adjusting disc turning device, comprising

[0033] The flange connection assembly 2 is used for fixing and installing the disc turning device with the wind turbine 1.

[0034] The main body 3 is used as the frame of the disc turning device, and one end of the main body 3 is hinged with the flange connection assembly 2 through the adjusting assembly 4.

[0035] The hoisting device 5 is hinged with the middle part of the main body 3, and the hoisting device 5 provides power for the disc turning device.

[0036] The counterweight assembly 6 is used for adjusting the balance of the disc turning device, and the counterweight assembly 6 is fixedly connected with the end of the main body 3 away from the flange connection assembly 2.

[0037] The flange connecting assembly 2 is installed on the wind turbine generator set 1, and is convenient to install and dismount and can be reused; the flange connecting assembly 2 is hinged with the main body 3 through the adjusting assembly 4, so that the included angle between the flange connecting assembly 2 and the ground can be conveniently and quickly changed, and the purpose of greatly adjusting the angle is achieved; the hoisting device 5 is hinged with the main body 3, so that the relative movement between the hoisting device 5 and the main body 3 can be conveniently controlled, the stability in the process of turning is ensured, and meanwhile, the rotation of the main body 3 with the hoisting device 5 as the shaft is not affected, the smoothness of the rotation in the process of turning is ensured; the counterweight assembly 6 is arranged at the tail end of the main body 3, and provides the weight required for the torque in the process of turning; the weight of the counterweight assembly 6 is convenient to adjust, the gravity center of the turning device can be conveniently adjusted, and the stability in the process of turning is ensured.

[0038] Further optimization scheme, adjusting assembly 4 includes a plurality of first hinge seat 41 and a plurality of second hinge seat 42 with flange connecting assembly 2 fixed, first hinge seat 41 and second hinge seat 42 corresponding setting, first hinge seat 41 and second hinge seat 42 through hinge assembly hinge; install second blade 8, hinge assembly includes pin shaft 43, all first hinge seat 41 and second hinge seat 42 are hinged with each other through pin shaft 43; install third blade, hinge assembly includes adjusting rod 44, both ends of adjusting rod 44 are hinged with corresponding first hinge seat 41 and second hinge seat 42 on the top surface through pin shaft 43, corresponding first hinge seat 41 and second hinge seat 42 on the lower end surface are hinged through pin shaft 43. First hinge seat 41 is four, respectively fixed on the top surface and the bottom surface of end beam 23, two on each surface, the two first hinge seats 41 on the same surface are symmetrical about the central axis of end beam 23; second hinge seat 42 is four, respectively fixed on the top surface and the bottom surface of first main beam 31, two second hinge seats 42 on the same surface are symmetrical about the central axis of first main beam 31; the first hinge seat 41 and the second hinge seat 42 corresponding to the opposite end surfaces are arranged correspondingly and connected together through the pin shaft 43, so as to fix and install the flange connecting assembly 2 and the main body 3 together, which is convenient to fix and install the whole turning device on the wind turbine generator set 1 through the flange connecting assembly 2; at the same time, after the second blade 8 is installed, the adjusting rod 44 is connected between the first hinge seat 41 and the second hinge seat 42 on the top end when the third blade is installed, the included angle between the first main beam 31 and the end beam 23 is adjusted, and the wind turbine generator set 1 is conveniently turned.

[0039] Further optimization scheme, the main body 3 includes the first main beam 31;The second hinge base 42 is fixedly connected at one end of the first main beam 31, and the other end of the first main beam 31 is fixedly connected with one end of the second main beam 32 through the flange assembly, and the other end of the second main beam 32 is fixedly connected with the counterweight assembly 6;The lifting device 5 is hinged with the second main beam 32;The lower end surface of the first main beam 31 and the second main beam 32 is respectively fixedly connected with the support leg 33;The end of the first main beam 31 and the second main beam 32 away from each other is respectively provided with the cable wind rope 34.The purpose of the main body 3 being divided into the first main beam 31 and the second main beam 32 is to facilitate transportation and storage, when needed, the flange assembly is used for on-site installation, and after use, the main body 3 is disassembled and transported, so that transportation is more convenient, and the storage pressure is reduced.The support leg 33 is used for supporting the whole turning gear device when the turning gear device is placed on the ground;The two ends of the main body 3 are respectively provided with the cable wind rope 34, which is pulled by hand or machine, so that the main body 3 rotates around the connecting shaft 51 as the center, and the required installation angle of the turning gear device is adjusted.

[0040] Further, the main body 3 includes but is not limited to the first main beam 31 and the second main beam 32, and the main body 3 can be disassembled into several segments according to the transportation and storage requirements, and the flange assembly can be connected.

[0041] Further, the support leg 33 is fixedly installed at the bottom end of the first main beam 31 and the second main beam 32 through bolts, and the number and spacing are determined according to the actual situation.

[0042] Further optimization scheme, the lifting device 5 includes the connecting shaft 51 fixedly connected at the two side surfaces of the second main beam 32, the connecting shaft 51 is rotatably connected with the lifting arm 52, the top end of the lifting arm 52 is detachably connected with the lifting hook of the crane 9;The bottom end of the lifting arm 52 is provided with the brake device 53.The lifting arm 52 is rotatably connected with the main body 3 through the connecting shaft 51, since the lifting arm 52 is hung on the lifting hook of the crane 9, the lifting arm 52 does not rotate, so that the rotation of the main body 3 around the connecting shaft 51 as the center is realized;The brake device 53 is vertically installed on the lifting arm 52 below the connecting shaft 51, and the two ends are respectively fixedly installed with the two legs of the lifting arm 52;When braking is needed, the brake device 53 is retracted, the two legs are pulled to the middle, the lifting arm 52 moves to the middle along the connecting shaft 51, and then the second main beam 32 is clamped, so that the lifting arm 52 is relatively fixed with the second main beam 32, and the stability of the turning gear device during installation and disassembly can be guaranteed;After the brake device 53 is released, the legs move along the connecting shaft 51 away from the second main beam 32, so that the second main beam 32 is separated from the lifting arm 52, and the second main beam 32 can drive the whole main body 3 to rotate freely, so that the turning gear device can be smoothly turned by relying on the weight during turning.The overall gravity center of the turning gear device is located on the connecting shaft 51, and the main body 3 can be kept balanced at any angle after the turning gear device is lifted.

[0043] Further, the brake device 53 has a remote control function, and can remotely control the opening and closing of the brake device 53. The brake device 53 is provided with a battery, and does not need additional power supply, which is convenient to use. The brake device 53 is a prior art, and will not be described here.

[0044] Further optimization scheme, the counterweight assembly 6 includes a fixed counterweight 61 fixedly installed with the second main beam 32, and an adjustable counterweight part is detachably connected to the fixed counterweight 61. The fixed counterweight 61 is fixedly installed at the end position of the second main beam 32 away from the first main beam 31 through a plurality of shafts, and mainly provides the weight required for the turning torque; the top end and the bottom end of the fixed counterweight 61 are provided with a quick mounting assembly for mounting the adjustable counterweight part to adjust the weight of the counterweight required for the turning torque, and the center of gravity of the turning device can also be adjusted.

[0045] Further, the connection mode of the quick mounting assembly includes but is not limited to flange connection, clamping, bolt connection and the like.

[0046] Further optimization scheme, when the second blade 8 is installed, the adjustable counterweight part includes a first adjustable counterweight 62 fixedly installed at the bottom end of the fixed counterweight.

[0047] Further optimization scheme, when the third blade is installed, the adjustable counterweight includes a first adjustable counterweight 62 and a second adjustable counterweight 63, both of which are installed at the top end of the fixed counterweight 61.

[0048] Further optimization scheme, the flange connection assembly 2 includes a connection flange 21 matched with the wind turbine generator set 1, and the connection flange 21 is fixedly installed with the wind turbine generator set 1 through a stud 22. Threaded holes are formed in the connection flange 21, and the number and position of the threaded holes correspond to the mounting screw holes of the wind turbine generator set 1, so that the connection flange 21 is fixedly installed with the wind turbine generator set 1 through the stud 22; an end beam 23 is fixedly connected to one end of the connection flange 21 away from the wind turbine generator set 1, and the first hinge seat 41 is fixedly connected to the upper and lower surfaces of one end of the end beam 23 away from the wind turbine generator set 1.

[0049] Further, the connection flange 21 can be determined according to the shape of the blade mounting base of the wind turbine generator set 1, so that the present turning device is matched with various wind turbine generator sets 1.

[0050] Further, an angle sensor is arranged on the end surface of the connection flange 21 away from the wind turbine generator set 1, which is used for monitoring the angular deflection of the flange connection assembly 2, cooperating with a level, and then controlling the deflection angle, so that the angle of the turning is accurate. The angle sensor and the level are both prior arts, and will not be described here.

[0051] Use method:

[0052] Firstly, the first blade 7 of the wind turbine 1 is installed, and after the installation is completed, the second blade 8 is prepared to be installed.

[0053] According to the accompanying drawings, the discing device is assembled. Figure 1 The first adjustable counterweight 62 of appropriate weight is installed at the bottom end of the fixed counterweight 61, and then the discing device is lifted off the ground by the crane 9. The end of the main body 3 provided with the counterweight is pulled down by the cable wind rope 34, so that the discing device rotates around the connecting shaft 51. The end of the flange connecting assembly 2 is lifted up, so that the angle between the installation surface of the connecting flange 21 and the vertical surface is -60°. The brake device 53 is remotely opened, and the second main beam 32 is clamped to prevent the angle from changing. At this time, the discing device can be kept stable. Finally, the flange connecting assembly 2 is slowly butt-jointed and installed on the hub of the wind turbine 1. During the installation, the wind turbine 1 is in the brake state. After the installation is completed, the brake device 53 is released, and the brake system of the wind turbine 1 is released, so that the crane 9 lifts the lifting arm 52 upward to perform the discing work. During the discing process, the lifting arm 52 is always in the vertical state. The main body 3 rotates counterclockwise around the lifting connecting shaft 51 to drive the wind turbine 1 to rotate. The second blade 8 is installed at the position of the discing to the horizontal state, and the angle sensor displays 0°. The brake device 53 is controlled again to clamp the main body 3, and the main shaft of the wind turbine 1 is locked by the brake system of the wind turbine 1 itself to prevent deflection. Finally, the discing device is disassembled and placed stably on the ground, and the second blade 8 is hoisted and installed.

[0054] According to the accompanying drawings, the discing device is assembled. Figure 5 The discing device is assembled as shown in the accompanying drawings. At this time, the discing device is basically the same as when the second blade 8 is installed. Only the adjusting rod 44 is added between the first hinge base 41 and the second hinge base 42 at the top end. The two ends of the adjusting rod 44 are hingedly connected to the first hinge base 41 and the second hinge base 42 through the pin shaft 43. The first adjustable counterweight 62 is transferred from the bottom end of the fixed counterweight 61 to the top end, and the second adjustable counterweight 63 is additionally installed at the top end of the fixed counterweight 61. The adjusting rod 44 changes the installation angle of the flange connecting assembly 2. The first adjustable counterweight 62 is shifted, and the second adjustable counterweight 63 is additionally installed to readjust the center of gravity of the discing device. The overall center of gravity of the discing device in this assembly form is still at the position of the connecting shaft 51. After the discing device is lifted, the main body 3 can be kept balanced at any angle, and the discing device provides torque for discing.

[0055] Still be hoisted after the modified turning gear, pull the cable 34 near the flange connection assembly 2 one end, make the turning gear rotate around the connecting shaft 51, the flange connection assembly 2 one end moves down, the installation surface of the connecting flange 21 and the angle of the vertical plane is-60 °, the brake device 53 is remotely opened, the second main beam 32 is clamped to make the angle not change, at this time, the turning gear can keep stable, finally, the flange connection assembly 2 is slowly butt jointed and installed on the hub of the wind turbine generator set 1.After installation is completed, loosen the brake device 53, loosen the brake system of the wind turbine generator set 1 at the same time, make the crane 9 downwardly lower the jib 52 to carry out the turning operation, the jib 52 is always in the vertical state during the turning process, the main body 3 rotates clockwise around the lifting connecting shaft 51, drives the wind turbine generator set 1 to rotate, installs the third blade position to the horizontal state, the display of the angle sensor is 0 °;The brake device 53 is clamped again, and the main shaft of the wind turbine generator set 1 is locked through the brake system of the wind turbine generator set 1 to prevent deflection, and the wind turbine generator set 1 is locked, finally, the turning device is disassembled and placed back to the ground stably, and the third blade is hoisted and installed.

[0056] The turning device mainly relies on the torque provided by its own weight to carry out turning, the crane 9 balances the excess weight by hoisting the jib 52, and the turning angle is controlled by the crane 9, so that the operator can operate remotely, which is convenient, safe and reliable.

[0057] The turning device is not limited by the internal space of the wind turbine, can be adapted to various wind turbine generator sets 1, has high reuse rate, reduces cost, cooperates with multiple components for adjustment, keeps stable during installation, is more flexible and convenient during use, can meet the requirements of multi-angle turning, has simple structure, convenient and fast turning operation, high practicability and low cost.

[0058] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0059] The above embodiments only describe the preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope determined by the claims of the present application.

Claims

1. An externally mounted multi-angle adjusting disc turning device, characterized in that: The utility model relates to a flange connection assembly (2) for fixing and installing a turning gear with a wind turbine generator unit (1), a main body (3) as a frame of the turning gear, one end of the main body (3) is hinged with the flange connection assembly (2) through an adjusting assembly (4), a hoisting device (5) is hinged with the middle part of the main body (3), the hoisting device (5) provides power for the turning gear, a counterweight assembly (6) is used for adjusting the balance of the turning gear, and the counterweight assembly (6) is fixedly connected with one end of the main body (3) away from the flange connection assembly (2). The adjusting assembly (4) comprises a plurality of first hinge seats (41) fixedly connected with the flange connection assembly (2) and a plurality of second hinge seats (42) fixedly connected with the main body (3), the first hinge seats (41) are correspondingly arranged with the second hinge seats (42), and the first hinge seats (41) and the second hinge seats (42) are hinged through a hinge assembly. When the second blade (8) is installed, the hinge assembly comprises a pin shaft (43), and all the first hinge seats (41) and the second hinge seats (42) are hingedly connected with each other through the pin shaft (43); when the third blade is installed, the hinge assembly comprises an adjusting rod (44), two ends of the adjusting rod (44) are respectively hingedly connected with corresponding first hinge seats (41) and second hinge seats (42) on the top surface through the pin shaft (43), and corresponding first hinge seats (41) and second hinge seats (42) on the lower end surface are hingedly connected through the pin shaft (43). The main body (3) comprises a first main beam (31); one end of the second hinge seat (42) is fixedly connected with the first main beam (31), the other end of the first main beam (31) is fixedly connected with one end of a second main beam (32) through a flange assembly, the other end of the second main beam (32) is fixedly connected with the counterweight assembly (6); and the hoisting device (5) is arranged to be hingedly connected with the second main beam (32). The hoisting device (5) comprises a connecting shaft (51) fixedly connected with the two side surfaces of the second main beam (32), a lifting arm (52) rotatably connected with the connecting shaft (51), and a brake device (53) arranged at the bottom end of the lifting arm (52). The counterweight assembly (6) comprises a fixed counterweight (61) fixedly installed with the second main beam (32), and an adjustable counterweight part detachably connected with the fixed counterweight (61). When the second blade (8) is installed, the adjustable counterweight part comprises a first adjustable counterweight (62) fixedly installed at the bottom end of the fixed counterweight. When the third blade is installed, the adjustable counterweight part comprises the first adjustable counterweight (62) and a second adjustable counterweight (63), and the first adjustable counterweight (62) and the second adjustable counterweight (63) are both installed at the top end of the fixed counterweight (61). ​ ​ ​ ​ 2. The externally mounted multi-angle wheel dolly of claim 1, wherein: The lower end surfaces of the first main beam (31) and the second main beam (32) are respectively fixed with support feet (33); the ends of the first main beam (31) and the second main beam (32) away from each other are respectively provided with cable wind ropes (34).

3. The externally mounted multi-angle wheel dolly of claim 1, wherein: The flange connecting assembly (2) comprises a connecting flange (21) matched with the wind turbine generator (1), and the connecting flange (21) is fixedly installed with the wind turbine generator (1) through a stud bolt (22).

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