CN102116270B - Connection mechanisms for integrally mounting offshore fans - Google Patents

Abstract

A connection mechanism for the overall installation of offshore wind turbines in the technical field of installation equipment for offshore wind power generating sets. It is distributed on an installation equipment for offshore wind turbines in a symmetrical arrangement on the left and right sides, with two on each side. The connection mechanism includes: The tenon component and the groove support corresponding to the rotational connection, wherein: the tenon component and the groove support are respectively welded and connected with the balance beam main body and the tower. The invention can rigidly fix the balance beam integrally installed on the offshore wind turbine and the tower, and is easy to disassemble.

Description

Connection mechanism for integral installation of offshore wind turbines

technical field

The invention relates to a device in the technical field of offshore wind power generators, in particular to a connection mechanism for integral installation of offshore wind turbines.

Background technique

The integral installation method of hoisting the entire wind turbine from the wind power installation ship to the foundation of the wind turbine has gradually become a new trend in the installation of offshore wind turbines. However, during land assembly, sea transportation and overall installation of wind turbines, due to their high center of gravity, problems such as center of gravity deviation or overturning are prone to occur. The setting of the balance beam installed on the top of the tower plays a role in solving the above problems.

After searching the existing technical documents, it was found that the Chinese patent document number is: CN201615031, and the patent title is "Balance Beam Structure for Offshore Wind Turbine Installation". A hollow sleeve part is provided to facilitate the installation of the balance frame body on the fan tower, and a clasp system is arranged on the hollow sleeve part. The balance beam structure ensures that the wind turbine will not overturn during assembly on land, transportation at sea and overall installation. According to the knowledge of structural mechanics, for a beam hinged at both ends, its maximum bending moment is twice that of a beam with both ends rigidly fixed. In order to reduce the load on the balance beam, the connection between the balance beam and the tower should adopt a rigid connection, and at the same time, it is necessary to ensure that the rigid connection can be removed during installation.

Contents of the invention

The present invention aims at the above-mentioned deficiencies in the prior art, and provides a connection mechanism for the overall installation of offshore wind turbines. This structure can rigidly fix the balance beam and tower frame of the overall installation of offshore wind turbines, and is easy to disassemble.

The present invention is achieved through the following technical solutions. The present invention is distributed on an offshore wind turbine installation device in a symmetrical arrangement on the left and right sides, and two on each side. Seat, wherein: tenon assembly and groove support are respectively welded and connected with the main body of the balance beam and the tower.

The tenon assembly is composed of a balance beam connecting block and a tenon, wherein: the tenon is arranged at the lower end of the balance beam connecting block; corresponding to the groove support, a tenon groove is provided and the shape of the tenon and the tenon match.

The tenons are inverted conical.

The connecting block of the balance beam and the groove support are provided with the same fixing hole, and the movable connection is realized through the fixing hole. When the tenon is inserted into the corresponding groove, the two fixing holes are coaxial Location.

When the tenon of the tenon assembly is inserted into the groove of the corresponding groove support, and the fixing holes of the corresponding tenon assembly and the fixing holes of the groove support are connected and fastened in series, the balance beam is firmly connected with the tower.

The effect of the present invention is that: the present invention ensures the rigid fixing between the balance beam used for the overall installation of the offshore wind turbine and the tower, and can be easily dismounted when needed. The inverted conical design of the tenon makes it easier for the tenon to enter and exit the groove. This design saves the cost of the balance beam and improves the loading and unloading efficiency of the bridge beam.

Description of drawings

Fig. 1 is a schematic diagram of the position in the overall installation structure of the offshore wind turbine in Embodiment 1.

Fig. 2 is a schematic view of the front structure of Embodiment 1 in a disassembled state.

Fig. 3 is a schematic view of the front structure of Embodiment 1 in a fastened connection state.

FIG. 4 is a side view of FIG. 2 .

Detailed ways

The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

As shown in Figure 1, the present invention, that is, the connecting mechanism 1 for the overall installation of offshore wind turbines is a mechanism for realizing the connection between the balance beam 2 and the tower 3, the connection mechanism 1 is installed on the top of the tower 3, and the balance beam 2 is used to hold The tightness of the wind turbine tower 4 is achieved by distributing them on an offshore wind turbine installation device in a symmetrical arrangement on the left and right sides, with two on each side.

As shown in Figures 2-4, the device in this embodiment includes: tenon assembly 5 and groove support 8 correspondingly rotatably connected. Solder connection.

The tenon assembly 5 is composed of a balance beam connection block 11 and a tenon 6, wherein: the tenon 6 is arranged at the lower end of the balance beam connection block 11, a groove 7 is provided corresponding to the groove support 8 and the tenon assembly 5 The tenon 6 is compatible with the groove 7 of the groove support 8 .

The tenon 6 is an inverted conical structure.

The groove support 8 and the balance beam connecting block 11 are provided with fixing holes 9 and 10 respectively. When the tenon 6 is plugged into the corresponding groove 7, the two fixing holes are in the coaxial position to realize the rotational connection.

When the tenon 6 of the tenon assembly 5 is inserted into the groove 7 of the corresponding groove support 8, and the fixing hole 10 of the corresponding tenon assembly 5 and the fixing hole 9 of the groove support 8 are fastened in series, the balance beam 2 It is firmly connected with the tower frame 3.

The device works in the following way: when fixing the balance beam 2, first hoist the balance beam 2 above the tower so that the tenon 6 is aligned with the corresponding groove 7. Then slowly lower the balance beam 2 to insert the tenon 6 into the groove 7 . After the tenon 6 is docked with the groove 7, the fixing hole 10 of the tenon assembly 5 and the fixing hole 9 of the groove support 8 are fastened in series. When unloading the balance beam 2, first loosen the fixing holes 9 and 10, then slowly lift the balance beam 2 so that the tenon 6 leaves the groove 7, and finally lift the balance beam 2 away from the tower 3.

Claims (3)

1. bindiny mechanism that is used for the offshore wind turbine integral installation; Be distributed on the offshore wind turbine erection unit with the right and left symmetry, each arrangement mode of two of every limit; It is characterized in that; This bindiny mechanism comprises: tenon assembly and the corresponding groove bearing that is rotationally connected, and wherein: tenon assembly and groove bearing are welded to connect with equalizer bar main body and pylon respectively;

Described tenon assembly is made up of equalizer bar contiguous block and tenon, and wherein: tenon is arranged at the lower end of equalizer bar contiguous block; The shape that corresponding described groove bearing is provided with groove and groove and tenon is suitable; Described equalizer bar contiguous block is provided with identical fixed hole with described groove bearing, and described being rotationally connected realized through fixed hole.

2. the bindiny mechanism that is used for the offshore wind turbine integral installation according to claim 1 is characterized in that, described tenon is a turbination.

3. the bindiny mechanism that is used for the offshore wind turbine integral installation according to claim 1 is characterized in that, when tenon grafting corresponding groove, two fixed holes are in coaxial position.

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