CN203560047U - Direct Drive Wind Turbine Set Rabbit Ear Assembled Combination Bracket - Google Patents

Abstract

The utility model discloses a rabbit-ear type assembling support of an offshore direct-drive wind generating seat. The rabbit-ear type assembling support comprises an underframe and a cylinder. The cylinder is fixedly disposed on the underframe, and the end face, spaced from the underframe of the cylinder is a flange face which is matched with a flange face on the cabin base. By the application of the rabbit-ear type assembling support, rabbit-ear type assembling and rabbit-ear type transporting of the wind generating set can be realized.

Description

Direct Drive Wind Turbine Set Rabbit Ear Assembled Combination Bracket

technical field

The utility model relates to a rabbit-ear-type assembled bracket of an offshore wind power generating set, which belongs to the technical field of wind power.

Background technique

Terminology introduction

Direct drive: refers to direct drive (Direct Drive), which is a new type of motor that is directly combined with the motion execution part, that is, the motor directly drives the machine to run without an intermediate mechanical transmission link. Typical applications of direct drive technology include linear motion components with linear motors as the core drive components and rotary motion components with torque motors as the core drive components. The direct drive unit means that the head part of the wind turbine is composed of the nacelle, the generator, the impeller and three blades, while the doubly-fed unit is composed of the nacelle, the impeller and the three blades (the nacelle Some of them include gear boxes, generators and other structures).

Rabbit ear combination: refers to a combination of the engine room, generator, impeller and two blades assembled together, and the two blades are in the state of rabbit ears.

Rabbit ear hoisting: refers to a fan hoisting method in which the rabbit ear assembly is hoisted as a whole to the top of the tower.

When installing offshore direct-drive wind turbines, in order to save hoisting time and reduce the number of hoisting times, it is necessary to use rabbit ear hoisting.

The hoisting of rabbit ears must be assembled into rabbit ears before hoisting. At present, there is no design of rabbit ear assembly brackets for direct drive wind turbines.

Utility model content

In view of the above-mentioned problems, the purpose of this utility model is to provide a rabbit-ear assembly bracket for offshore wind turbines, so as to realize the rabbit-ear assembly of wind turbines and the rabbit-ear transportation of wind turbines.

The technical solution that the utility model adopts is:

An offshore direct-drive wind power generating unit rabbit-ear-type assembled composite bracket, comprising:

Chassis;

A cylinder, the cylinder is fixedly installed on the underframe, the end surface of the cylinder away from the underframe is a flange surface, and the flange surface matches the flange surface on the base of the nacelle.

Preferably, the cylinder is fixed at a middle position on the chassis.

Preferably, the chassis is a frame composed of at least two transverse beams and at least two longitudinal beams.

Preferably, the part of the bottom frame in contact with the cylinder is provided with cross beams and longitudinal beams.

Preferably, reinforcing vertical plates are provided on both inner and outer sides of the crossbeam and/or the longitudinal beam in contact with the cylinder on the underframe.

Preferably, a diagonal brace is provided between the beam and the longitudinal beam.

Preferably, a reinforcing rib is provided between the cylinder and the bottom frame.

Preferably, a circular-arc patch is provided on the outside of the cylinder, and a reinforced diagonal brace is provided between the cylinder and the chassis, and the circular-arc laminate is directly below the reinforced diagonal brace, with To support the reinforced diagonal bracing.

Preferably, holes for operators to enter and exit are opened on symmetrical two sides of the cylinder.

Preferably, the beam and the longitudinal beam are made of I-shaped steel.

Preferably, the underframe is welded by beams and longitudinal beams.

Preferably, the connection between the beam, the longitudinal beam and the brace is welding.

The technical solution provided by the utility model has the following advantages:

1. The rabbit-ear assembly bracket is used to ensure the rabbit-ear assembly and transportation of the direct drive unit. The bracket is connected to the flange on the base of the engine room with bolts through the flange on the bracket cylinder, and then the generator is connected to the engine room. Then connect the impeller to the generator, and finally connect the two rabbit ear blades to the impeller; the assembled assembly can be transported on board after being installed on the bracket, and only need to weld the combined bracket to the hull deck during transportation;

2. The structure of the bracket is simple and the strength meets the requirements, which is economical and practical;

3. The overall weight of the bracket is not heavy, which is convenient for transportation and hoisting;

4. The bracket is easy to maintain.

Description of drawings

Fig. 1 is the overall schematic diagram of a kind of rabbit ear type assembled combination bracket of the utility model embodiment;

Fig. 2 is a schematic diagram of a rabbit ear type combined bracket underframe of the embodiment of the present invention;

Fig. 3 is a schematic diagram of a cylinder structure of an embodiment of the utility model;

Fig. 4 is the front view of another embodiment of the utility model;

Fig. 5 is a top view of another embodiment of the utility model;

Fig. 6 is a perspective view of another embodiment of the utility model.

In the figure: 1 base frame, 11 beam, 12 longitudinal beam, 13 cross-shaped support beam, 14 diagonal brace, reinforced vertical plate 15, cross brace 16, 17 diagonal brace; 2 cylinder, 21 flange surface, 22 hole, 23 Arc board; 3 strengthen the diagonal brace.

Detailed ways

The embodiment of the utility model provides a rabbit-ear assembly bracket for an offshore wind power generating set, so as to realize the rabbit-ear assembly of the wind power generating set and the rabbit-ear transportation of the wind generating set.

In order to reduce the number of hoisting times of offshore wind turbines and save hoisting time at sea, the direct drive unit needs to assemble and combine the nacelle, generator, impeller and two blades and then hoist them together. After being installed on this support, it can be installed on the ship for transportation. During transportation, the combined support and the hull deck need to be welded in sections.

Describe in detail below in conjunction with accompanying drawing.

As shown in Figure 1, in one embodiment of the present utility model, the rabbit-ear-type assembly bracket of the offshore direct-drive wind power generating set includes an underframe 1 and a cylinder 2, and the cylinder 2 is fixedly installed on the underframe 1, and the cylinder The end surface (top surface) away from the underframe 1 on the 2 is a flange surface 21, which matches the flange surface on the base of the nacelle.

In this embodiment, in order to enhance the stability of the combined bracket, the cylinder 2 is fixed at the middle position on the bottom frame 1 .

In order to enhance the stability of the cylinder 2, a reinforcing brace 3 is provided between the cylinder 2 and the underframe 1.

As shown in FIG. 2 , in order to ensure the load-bearing strength of the underframe 1 , the underframe 1 includes two long cross beams 11 , several short cross braces 16 and five longitudinal beams 12 . The number of beams and longitudinal beams can be increased or decreased as appropriate according to the strength calculation. In this frame, a small rectangular frame is formed between two adjacent longitudinal beams 12 , and the small rectangular frame in the middle is used for fixing and installing the cylinder 2 .

In order to increase the load-bearing strength of the underframe 1, in the small rectangular frame located in the middle, the part of the underframe 1 that is in contact with the cylinder 2 must have cross beams and longitudinal beams, that is, cross-shaped beams connecting the longitudinal beams 12 and the crossbeams 11. Support beam 13.

In order to further increase the load-bearing strength of the small rectangular frame located in the middle of the underframe 1, in the small rectangular frame located in the middle, reinforcements are provided on the inner and outer sides of the crossbeam and/or longitudinal beam on the underframe 1 that are in contact with the cylinder 2 Riser 15.

In order to further increase the bearing strength of the underframe 1 , diagonal braces 14 and 17 are provided between the beam 11 and the longitudinal beam 12 .

As shown in FIG. 3 , in order to make it easier for the operator to enter and exit when installing bolts, holes 22 for the operator to enter and exit are opened on both symmetrical sides of the cylinder 2 .

Please refer to another embodiment of the utility model shown in FIGS. 4-6 .

In order to enhance the stability of the cylinder 2 during transportation, an arc patch 23 is provided on the outside of the cylinder 2 (the right side in the figure), and a reinforced diagonal brace 3 is provided between the cylinder 2 and the underframe 1. The arc sticking plate 23 is directly below the reinforced diagonal brace 3 for supporting the reinforced diagonal brace 3 .

The arc patch 23 and the reinforced brace 3 can be supported in other forms, for example: four reinforcing ribs (not shown) are connected between the arc patch 23 on one side of the cylinder 2 and the chassis 1 .

All beams 11 and longitudinal beams 12 adopt I-shaped steel.

In this embodiment, the connections between the beams, the longitudinal beams and the braces are all welded.

The assembly process of the rabbit ear type assembly combination bracket of the utility model embodiment is as follows:

1. Tailor-weld the bottom frame 1 of the combined bracket first. The material of the bottom frame 1 is I-beam, and the overall leveling shall not be deformed after the welding is completed.

2. After the base frame 1 is welded, the cylinder 2 is welded to the middle of the base frame 1 as a whole.

It is necessary to install the nacelle, the generator, the impeller and two rabbit ear blades on the rabbit ear type assembly combination bracket, so the reinforced braces 3 connecting the cylinder 2 and the chassis 1 are designed on the left and right sides of the cylinder 2 (see Figure 1), Its main purpose is to prevent the cylinder 2 from deforming after being loaded. After adding the reinforced diagonal brace 3, the load calculation software analyzes that the cylinder 2 basically does not deform after being loaded, and the force of the entire bracket meets the load requirements.

The use process of the rabbit ear assembly combination bracket is as follows:

The purpose of the rabbit ear assembly combination bracket is for the rabbit ear assembly of the head part of the direct drive unit. First connect the bracket to the flange hole on the engine room base with bolts through the flange hole on the cylinder 2 in the middle of the bracket, and then attach the The generator is connected with the nacelle, then the impeller is connected with the generator, and finally the two rabbit ear blades are connected with the impeller. Finally, the rabbit ear combination is assembled and transported on this stand.

The above-mentioned underframe 1 is formed by welding the beams and longitudinal beams.

The technical solution provided by the utility model has the following advantages:

1. The rabbit-ear assembly bracket is used to ensure the rabbit-ear assembly and transportation of the direct drive unit. The bracket is connected to the flange on the base of the engine room with bolts through the flange on the bracket cylinder, and then the generator is connected to the engine room. Then connect the impeller to the generator, and finally connect the two rabbit ear blades to the impeller; the assembled assembly can be transported on board after being installed on the bracket, and only need to weld the combined bracket to the hull deck during transportation;

2. The structure of the bracket is simple and the strength meets the requirements, which is economical and practical;

3. The overall weight of the bracket is not heavy, which is convenient for transportation and hoisting;

4. The bracket is easy to maintain.

It can be understood that, the above embodiments are only exemplary embodiments adopted to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present utility model, and these variations and improvements are also regarded as the protection scope of the present utility model.

Claims (12)

1. a marine direct wind-driven generator group rabbit ear formula assembling combination support, is characterized in that: comprise underframe; Cylinder, described cylinder is fixedly mounted on described underframe, and described cylinder is flanged surface away from the end face of described underframe, and described flanged surface mates with the flanged surface on engine room foundation.

2. marine direct wind-driven generator group rabbit ear formula assembling combination support as claimed in claim 1, is characterized in that:

Described cylinder is fixed on the medium position on described underframe.

3. marine direct wind-driven generator group rabbit ear formula assembling combination support as claimed in claim 2, is characterized in that:

The serve as reasons frameworks of at least two crossbeams and at least two longerons composition of described underframe.

4. marine direct wind-driven generator group rabbit ear formula assembling combination support as claimed in claim 3, is characterized in that:

The part that described underframe contacts with described cylinder is provided with crossbeam and the longeron of criss-crossing.

5. marine direct wind-driven generator group rabbit ear formula assembling combination support as claimed in claim 4, is characterized in that:

Inside and outside the crossbeam contacting with described cylinder on described underframe and/or longeron, both sides are equipped with reinforcement riser.

6. marine direct wind-driven generator group rabbit ear formula assembling combination support as claimed in claim 5, is characterized in that: between described crossbeam and described longeron, be provided with diagonal brace.

7. marine direct wind-driven generator group rabbit ear formula assembling combination support as claimed in claim 3, is characterized in that: between described cylinder and described underframe, be provided with deep floor.

8. marine direct wind-driven generator group rabbit ear formula assembling combination support as claimed in claim 3, it is characterized in that: described cylinder outside is provided with circular arc pasting board, between described cylinder and described underframe, be provided with reinforcement diagonal brace, described circular arc pasting board is under described reinforcement diagonal brace, in order to support described reinforcement diagonal brace.

9. marine direct wind-driven generator group rabbit ear formula assembling combination support as claimed in claim 1, is characterized in that: the symmetrical bi-side of described cylinder have the hole for operator's turnover.

10. the marine direct wind-driven generator group rabbit ear formula assembling combination support as described in any one in claim 3 to 5, is characterized in that: described crossbeam and described longeron adopt work shaped steel.

11. marine direct wind-driven generator group rabbit ear formula assembling combination supports as claimed in claim 10, is characterized in that: described underframe by crossbeam and longeron through being welded.

12. marine direct wind-driven generator group rabbit ear formula assembling combination supports as claimed in claim 6, is characterized in that: between described crossbeam, described longeron and diagonal brace, be connected to welding.

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