CN114483474A - Transportation method and special transportation device for double-fed wind generating set - Google Patents

Abstract

The invention discloses a transportation method and a special transportation device for a doubly-fed wind generator set. The transportation method adopts a separate transportation method when the fan is transported. The frame part and the transmission chain part are transported separately by special transport devices, connected and fixed with high-strength bolts and special transport devices, and then dropped on the transport vehicles respectively, and the special transport devices are fixed by the car belt noose, and the wind turbine is transported. After arriving at the wind farm, the frame part and the transmission chain part are hoisted separately, assembled on the tower, and finally a complete wind turbine is formed. The transportation method of the invention greatly reduces the requirements for the crane, and simultaneously reduces the difficulty and cost of hoisting. The invention can reduce the overall transportation height, and the weight of the transmission chain occupies nearly 1/2 of the weight of the wind turbine. After the split transportation, the vehicle weight is reduced, the road requirements are lower, and the transportation is more convenient.

Description

A transportation method and special transportation device for a double-fed wind turbine

technical field

The invention belongs to the technical field of wind power generation devices, and in particular relates to a transportation method and a special transportation device for a double-fed wind turbine generator set.

Background technique

At present, the nacelles of the common doubly-fed wind turbines on the market in the prior art are all transported as a whole, that is, the wind turbine is a finished nacelle during transportation, and a large-tonnage crane is used for hoisting after the wind turbine arrives at the wind farm. With changes in market demand, large-megawatt wind turbines are gradually being widely used, and the weight and external dimensions of wind turbines are also gradually increasing. Based on the status quo in the prior art, the traditional overall transportation method of wind turbines in the prior art uses cabin transportation tooling for overall transportation. The overall transportation height is high, the load is heavy, and the road requirements are relatively high. The transportation of wind turbines needs to be carried out in advance. When the road is bad, detailed route planning is required, and the road with limited height and width needs to be bypassed, which makes the transportation of wind turbines difficult and expensive. The traditional overall transportation method of wind turbines in the prior art also requires higher tonnage of the cranes for hoisting the wind turbines. When hoisting large-megawatt wind turbines, the load of the crane is relatively large, and it is often necessary to select 1,000 tons in the selection of the crane. The above cranes are used to meet the actual hoisting needs, resulting in a linear increase in hoisting costs.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, the present invention provides a transportation method and a special transportation device for a double-fed wind power generating set.

The present invention is achieved through the following technical solutions: The present invention discloses a transportation method for a doubly-fed wind power generating set. Loaded and transported separately from the transmission chain part, the frame part of the wind turbine and the transmission chain part are transported separately by special transport devices, connected and fixed with high-strength bolts and special transport devices, and then dropped on the transport vehicles respectively, using car belts The special transportation device is fixed by the noose. After the wind turbine is transported to the wind farm, the frame part and the transmission chain part are hoisted separately, and assembled on the tower to form a complete wind turbine.

The double-fed wind turbine is composed of a frame part and a transmission chain part. The transmission chain part is composed of a transmission shaft, a floating bearing seat, a thrust bearing seat, a gear box and the elastic support of the gearbox; in the floating bearing seat, the thrust bearing seat Bolt holes are provided on the elastic support of the gearbox and the gearbox, and high-strength bolts are used to connect and fix the frame part through the floating bearing seat, the thrust bearing seat and the bolt hole on the elastic support of the gearbox; special transportation device for double-fed wind turbines Including the special transportation device for the frame part and the special transportation device for the transmission chain part.

The special transport device for the rack part includes the rack base, the connecting flange plate arranged on the rack base, and the two fan tail supports arranged on the top surface of the rear end of the rack base; evenly distributed on both sides of the rack base There are several hoisting hooks. During transportation, the front part of the wind generator frame part is connected to the connecting flange through high-strength bolts, and the rear part of the wind generator frame part is connected to the rear support of the fan through high-strength bolts. After the car, use the car belt noose to pass through the hoisting hook to fix the special transport device for the frame part; the frame part of the wind turbine falls on the special transport device for the frame part during transportation.

The connecting flange simulates the top tower and is connected to the frame part of the wind turbine.

The fan tail support of the wind turbine is used to support and fix the tail of the wind turbine frame to prevent the deformation of the frame caused by bumps during transportation and the yaw of the wind turbine caused by the turning of the vehicle.

The special transport device for the transmission chain part includes a transmission chain base, on which two front gear box box support seats, a middle gear box box body support seat, and two gear box elastic supports are sequentially arranged from the front to the rear. There are several base hooks evenly distributed on both sides of the transmission chain base, which are fixed by using the noose that comes with the transport vehicle to pass through the base hooks; During transportation, the transmission chain part of the wind turbine falls on the special transportation device for the transmission chain part.

The two front gear box case support seats and one middle gear box case support seat are designed and manufactured according to the bottom shape of the gear box case. There are several threaded holes. The front gear box body support seat and the middle gear box box body support seat play a supporting role while fixing the gear box by installing high-strength bolts on the threaded holes of the support seat.

The top mounting surfaces of the gearbox elastic support seat, the thrust bearing seat support seat and the floating bearing seat support seat are on the same plane, and the top mounting surface is consistent with the design inclination of the wind turbine frame, which is convenient for lifting and installation.

The gear box is elastically supported and fixed on the two gear box elastic support seats by high-strength bolts; and the thrust bearing seat is fixedly connected to the two thrust bearing seat support seats by high-strength bolts. The floating bearing seat is fixedly connected to the supporting seat of the floating bearing seat through high-strength bolts.

The beneficial effects of the present invention are as follows: the present invention discloses a transportation method and a special transportation device for a doubly-fed wind power generating unit, and the traditional integral transportation method in the prior art has a large crane load when hoisting a large-megawatt wind power generating unit. In the selection of cranes, cranes of more than 1000 tons are often selected to meet the actual lifting needs. The transportation method disclosed in the present invention greatly reduces the requirements for the crane, the load of the crane can be reduced by nearly 1/2, the selection range of the crane is wide, and the difficulty of hoisting is reduced at the same time, and the selection of the hoisting team has better selectivity, which can greatly reduce the Lifting costs. The traditional overall transportation method of wind turbines in the prior art uses cabin transportation tooling for overall transportation. The overall transportation height is high, the load is heavy, and the road requirements are relatively high. The transportation of wind turbines needs to be carried out in advance, and the road needs to be detailed. The route planning of the wind turbines needs to bypass the height-limited and width-limited roads, which makes the transportation of wind turbines difficult and expensive. By adopting the transportation method and special transportation device of the double-fed wind turbine in the present invention, the overall transportation height can be greatly reduced, and the weight of the transmission chain occupies nearly 1/2 of the weight of the wind turbine, which greatly reduces the weight of the wind turbine after separate transportation. The weight of the vehicle is lower, and the road requirements are lower, which makes the transportation more convenient.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the double-fed wind turbine;

Fig. 2 is the three-dimensional structure schematic diagram of the special-purpose transportation device of the rack part of the present invention;

FIG. 3 is a schematic three-dimensional structure diagram of the special transport device for the transmission chain part of the present invention.

In the picture: 1-drive shaft; 2-floating bearing seat; 3-thrust bearing seat; 4-gear box; 5-gear box elastic support; 6-frame part; 7-connecting flange; 8-fan tail Support; 9- rack base; 10- hoisting hook; 11- transmission chain base; 12- front gear box box support seat; 13- middle gear box box body support seat; 14- gear box elastic support seat; 15 - Thrust bearing seat support seat; 16 - Floating bearing seat support seat.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The invention discloses a transportation method of a double-fed wind turbine. The transportation method of the present invention adopts a separate transportation method when the wind turbine is transported, and the rack part 6 and the transmission chain part of the wind turbine are separately loaded and transported. , The frame part 6 and the transmission chain part of the wind turbine are transported separately by special transport devices, connected and fixed with high-strength bolts and special transport devices, and then dropped on the transport vehicles respectively, and the special transport devices are fixed by the car belt noose , After the wind generator set is transported to the wind farm, the frame part 6 and the transmission chain part are respectively hoisted, assembled on the tower, and finally a complete wind generator set is formed.

As shown in Figure 1, the doubly-fed wind turbine is composed of a frame part 6 and a transmission chain part. The transmission chain part is supported by a transmission shaft 1, a floating bearing seat 2, a thrust bearing seat 3, a gearbox 4 and a gearbox elastically supported 5 components; bolt holes are provided on the floating bearing seat 2, the thrust bearing seat 3 and the gearbox elastic support 5, and high-strength bolts are used to pass the bolts on the floating bearing seat 2, the thrust bearing seat 3 and the gearbox elastic support 5 The hole is connected and fixed with the frame part 6; the special transport device for the double-fed wind turbine includes a special transport device for the frame part and a special transport device for the transmission chain part.

As shown in FIG. 2 , the special transportation device for the rack part includes a rack base 9 , a connecting flange 7 arranged on the rack base 9 , and two fan tail supports 8 arranged on the top surface of the rear end of the rack base 9 . There are several hoisting hooks 10 evenly distributed on both sides of the frame base 9, and the front part of the wind turbine frame part 6 is connected with the connecting flange 7 by high-strength bolts during transportation, and the wind turbine The tail of the frame part 6 is connected to the fan tail support 8 through high-strength bolts. After the whole vehicle is loaded, the special transport device for the frame part 6 is fixed by using the vehicle belt noose through the hoisting hook 10; the frame part of the wind turbine is transported. 6 falls on the special transport device for the rack part. The connecting flange 7 simulates the top tower and is connected to the frame part 6 of the wind turbine. The fan tail support 8 of the wind turbine is used to support and fix the tail of the wind turbine frame 6 to prevent the frame 6 from being deformed due to bumps during transportation and the wind turbine yaw caused by the vehicle turning.

As shown in FIG. 3 , the special transportation device for the transmission chain part includes a transmission chain base 11, and two front gear box case support seats 12 and a middle gear box case are sequentially arranged on the transmission chain base 11 from the front to the rear. The support seat 13 , the two gear box elastic support seats 14 , the two thrust bearing seat support seats 15 and the two floating bearing seat support seats 16 are evenly distributed on both sides of the transmission chain base 11 with a number of base hooks. The noose that comes with the transportation vehicle is fixed through the hook of the base; the transmission chain part of the wind turbine falls on the special transportation device for the transmission chain part during transportation. Two front gear box case support seats 12 and one middle gear box case support seat 13 are designed and manufactured according to the bottom shape of the gear box 4 case. The body support seat 13 is provided with a number of threaded holes. The front gear box body support seat 12 and the middle gear box box body support seat 13 play a supporting role at the same time by installing high-strength bolts on the threaded holes of the support seat. 4 to play a fixed role. The top mounting surfaces of the gearbox elastic support seat 14, the thrust bearing seat support seat 15 and the floating bearing seat support seat 16 are on the same plane, and the top mounting surface is consistent with the design inclination of the wind turbine frame 6, which is convenient for lifting and installation. The gearbox elastic support 5 is fixed on the two gearbox elastic support seats 14 by high-strength bolts; and the thrust bearing seat 3 is fixedly connected to the two thrust bearing seat support seats 15 by high-strength bolts. The floating bearing seat 2 is fixedly connected to the supporting seat 16 of the floating bearing seat by means of high-strength bolts.

Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than limiting the protection scope of the present invention. The essence and scope of the technical solution of the invention.

Claims (10)

1. A transportation method of a double-fed wind generating set is characterized in that: the transportation method of the double-fed wind generating set is that a split transportation mode is adopted during transportation of the wind generating set, a frame part and a transmission chain part of the wind generating set are respectively loaded and transported, the frame part and the transmission chain part of the wind generating set are respectively transported by a special transportation device, are connected and fixed by a high-strength bolt and the special transportation device, then fall on a transportation vehicle respectively, the special transportation device is fixed by a vehicle belt rope, after the wind generating set is transported to a wind farm, the frame part and the transmission chain part are respectively hoisted, and are assembled on a tower, and finally, the complete wind generating set is formed.

2. The special transportation device for the doubly-fed wind generator set as claimed in claim 1, wherein: the double-fed wind generating set consists of a frame part and a transmission chain part, wherein the transmission chain part consists of a transmission shaft, a floating bearing seat, a thrust bearing seat, a gear box and a gear box elastic support; bolt holes are formed in the floating bearing seat, the thrust bearing seat and the gear box elastic support, and high-strength bolts are used for connecting and fixing the floating bearing seat, the thrust bearing seat and the gear box elastic support with the rack part; the special conveying device of the double-fed wind generating set comprises a special conveying device for a rack part and a special conveying device for a transmission chain part.

3. The special transportation device for the doubly-fed wind turbine generator set as claimed in claim 2, wherein: the special transportation device for the rack part comprises a rack base, a connecting flange plate arranged on the rack base and two fan tail supports arranged on the upper top surface of the rear end of the rack base; a plurality of hoisting hooks are uniformly distributed on two sides of the frame base, the front part of the frame part of the wind driven generator is connected with the connecting flange plate through high-strength bolts during transportation of the wind driven generator, the tail part of the frame part of the wind driven generator is connected with the tail part of the fan through high-strength bolts in a supporting manner, and after the whole truck is loaded, a truck belt rope penetrates through the hoisting hooks to fix the special transportation device for the frame part; the frame part of the wind driven generator falls on the special transportation device for the frame part during transportation.

4. The special transportation device for the doubly-fed wind generator set as claimed in claim 3, wherein: the connecting flange plate simulates a top tower and is connected with the frame part of the wind driven generator.

5. The special transportation device for the doubly-fed wind turbine as claimed in claim 3 or 4, wherein: the tail support of the fan of the wind driven generator is used for supporting and fixing the tail of the frame of the wind driven generator, so that the frame deformation caused by bumping during transportation and the yaw of the wind driven generator caused by vehicle turning are prevented.

6. The special transportation device for the doubly-fed wind generator set as claimed in claim 2, wherein: the special conveying device for the transmission chain part comprises a transmission chain base, wherein two front gear box body supporting seats, a middle gear box body supporting seat, two gear box elastic supporting seats, two thrust bearing seat supporting seats and two floating bearing seat supporting seats are sequentially arranged on the transmission chain base from the front part to the rear part, a plurality of base lifting hooks are uniformly distributed on two sides of the transmission chain base, and a rope of a transport vehicle penetrates through the base lifting hooks to be fixed; and the transmission chain part of the wind driven generator falls on the special conveying device for the transmission chain part during conveying.

7. The special transportation device for the doubly-fed wind generator set as claimed in claim 6, wherein: two anterior gear box supporting seats and a middle part gear box supporting seat all design the preparation according to the bottom appearance of gear box all be provided with a plurality of screw holes on anterior gear box supporting seat and the middle part gear box supporting seat, anterior gear box supporting seat with middle part gear box supporting seat plays the fixed action to the gear box through installing high strength bolt on the supporting seat screw hole when playing the supporting role.

8. The special transportation device for the doubly-fed wind generator set as claimed in claim 7, wherein: the top mounting surfaces of the elastic supporting seat, the thrust bearing seat supporting seat and the floating bearing seat supporting seat of the gear box are on the same plane, and the top mounting surfaces are consistent with the designed inclination angle of the wind driven generator frame, so that the gear box is convenient to lift and mount.

9. The special transportation device for the doubly-fed wind generator set as claimed in claim 8, wherein: the gear box elastic support is fixed on the two gear box elastic supporting seats through high-strength bolts; and the thrust bearing blocks are fixedly connected to the two thrust bearing block supporting seats through high-strength bolts.

10. The special transportation device for the doubly-fed wind generator set as claimed in claim 9, wherein: and the floating bearing seat is fixedly connected to the floating bearing seat supporting seat through a high-strength bolt.

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