Transportation method and special transportation device for double-fed wind generating set
Technical Field
The invention belongs to the technical field of wind power generation devices, and particularly relates to a transportation method and a special transportation device for a double-fed wind power generation unit.
Background
The engine room of the double-fed wind generating set common in the market in the prior art adopts an integral transportation mode, the wind generating set is a finished product engine room during transportation, and the wind generating set is hoisted by using a large-tonnage crane after reaching a wind field. With the change of market demands, large megawatt wind driven generators are gradually widely applied, and the weight and the external dimension of the wind driven generator are gradually increased. Based on the current situation in the prior art, the traditional wind generating set integral transportation mode in the prior art uses the cabin transportation tool for integral transportation, the integral transportation height is high, the load is heavy, the requirement on the road is high, the wind generating set transportation needs to be carried forward to go to the road, the road needs to be detailed for planning when the road is embarrassed, the height-limited and width-limited road needs to be bypassed, the wind generating set is difficult to transport and heavy, and the transportation cost is high. In the traditional integral transportation mode of the wind generating set in the prior art, the tonnage requirement of a crane for hoisting the wind generating set is higher, the crane load is larger when the large megawatt wind generating set is hoisted, and the crane with the tonnage of more than 1000 tons is often required to meet the actual hoisting requirement in crane model selection, so that the hoisting cost is increased linearly.
Disclosure of Invention
The invention provides a transportation method and a special transportation device for a double-fed wind generating set, aiming at overcoming the defects in the prior art.
The invention is realized by the following technical scheme: the invention discloses a transportation method of a double-fed wind generating set, which adopts a split transportation mode when the wind generating set is transported, wherein 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 with the special transportation device by using high-strength bolts, then fall on a transportation vehicle respectively, the special transportation device is fixed by using a vehicle belt winch, after the wind generating set is transported to a wind field, the frame part and the transmission chain part are respectively hoisted, and are assembled on a tower, thereby finally forming the complete wind generating set.
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 transportation device of the double-fed wind generating set comprises a special transportation device of a rack part and a special transportation device of a transmission chain part.
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; the two sides of the frame base are uniformly provided with a plurality of hoisting hooks, the front part of the frame part of the wind driven generator is connected with a connecting flange plate through a high-strength bolt during transportation of the wind driven generator, the tail part of the frame part of the wind driven generator is connected with a tail part support of a fan through the high-strength bolt, and after the whole truck is loaded, a truck belt rope penetrates through the hoisting hooks to fix the special transportation device of the frame part; the frame part of the wind driven generator falls on a special transportation device for the frame part during transportation.
The connecting flange plate simulates a top tower and is connected with a frame part of the wind driven generator.
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, and the frame deformation caused by bumping during transportation and the yaw of the wind driven generator caused by vehicle turning are prevented.
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; and the transmission chain part of the wind driven generator falls on the special conveying device for the transmission chain part during conveying.
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 are provided with a plurality of screw holes on anterior gear box supporting seat and the middle part gear box supporting seat, and anterior gear box supporting seat and middle part gear box supporting seat play the fixed action to the gear box through installing high strength bolt on the supporting seat screw hole when playing the supporting role.
The top mounting surfaces of the elastic support seat, the thrust bearing seat support seat and the floating bearing seat support seat of the gear box are on the same plane, and the design inclination angles of the top mounting surface and the wind driven generator frame are consistent, so that the gear box is convenient to lift and mount.
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. The floating bearing seat is fixedly connected to the floating bearing seat supporting seat through the high-strength bolt.
The invention has the beneficial effects that: the invention discloses a transportation method and a special transportation device for a double-fed wind generating set, wherein in the traditional integral transportation mode in the prior art, the crane load is larger when a large megawatt wind generating set is hoisted, and more than 1000 tons of cranes are usually selected on crane model selection to meet the actual hoisting requirement. The transportation method disclosed by the invention has the advantages that the requirement on the crane is greatly reduced, the crane load can be reduced by nearly 1/2, the crane type selection range is wide, the hoisting difficulty is reduced, the selection of a hoisting team is better, and the hoisting cost can be greatly reduced. The traditional wind generating set integral transportation mode in the prior art uses the cabin transportation tool for integral transportation, the integral transportation height is high, the load is heavy, the requirement on a road is high, the wind generating set transportation needs to be carried forward to go to the road and can be carried out, the road needs to be subjected to detailed route planning when being capable, the height limit and the width limit roads need to be bypassed, the wind generating set is difficult to transport and heavy, and the transportation cost is high. By adopting the transportation method and the special transportation device of the double-fed wind generating set, the whole transportation height can be greatly reduced, the weight of the transmission chain occupies about 1/2 of the weight of the wind generating set, the vehicle-mounted weight is greatly reduced after split transportation, the requirement on roads is lower, and the transportation is more convenient.
Drawings
FIG. 1 is a schematic perspective view of a double-fed wind turbine generator system;
FIG. 2 is a schematic perspective view of a transportation device dedicated for a rack part according to the present invention;
fig. 3 is a schematic perspective view of the transportation device dedicated for the drive chain part of the present invention.
In the figure: 1-a transmission shaft; 2-floating bearing seats; 3-thrust bearing seats; 4-a gearbox; 5-elastic support of the gear box; 6-a frame part; 7-connecting a flange plate; 8-fan tail support; 9-a frame base; 10-hoisting a lifting hook; 11-a transmission chain base; 12-front gearbox housing support; 13-middle gearbox body support seat; 14-elastic support seat of gear box; 15-thrust bearing seat support seat; 16-floating bearing block support seat.
Detailed Description
The invention is described in detail below with reference to the figures and the detailed description.
The invention discloses a transportation method of a double-fed wind generating set, which adopts a split transportation mode during transportation of the wind generating set, wherein a frame part 6 and a transmission chain part of the wind generating set are respectively loaded and transported, the frame part 6 and the transmission chain part of the wind generating set are respectively transported by a special transportation device, are connected and fixed with the special transportation device by high-strength bolts, then fall on a transportation vehicle respectively, the special transportation device is fixed by a vehicle belt hinge, and after the wind generating set is transported to a wind field, the frame part 6 and the transmission chain part are respectively hoisted, and are assembled on a tower, thereby finally forming the complete wind generating set.
As shown in fig. 1, the double-fed wind generating set is composed of a frame part 6 and a transmission chain part, wherein the transmission chain part is composed of a transmission shaft 1, a floating bearing seat 2, a thrust bearing seat 3, a gear box 4 and a gear box elastic support 5; bolt holes are formed in the floating bearing seat 2, the thrust bearing seat 3 and the gear box elastic support 5, and high-strength bolts are used for connecting and fixing the floating bearing seat 2, the thrust bearing seat 3 and the gear box elastic support 5 with the rack part 6 through the bolt holes; the special transportation device of the double-fed wind generating set comprises a special transportation device of a rack part and a special transportation device of a transmission chain part.
As shown in fig. 2, the special transportation device for the rack part comprises a rack base 9, a connecting flange 7 arranged on the rack base 9, and two fan tail supports 8 arranged on the upper top surface of the rear end of the rack base 9; a plurality of hoisting hooks 10 are uniformly distributed on two sides of a frame base 9, the front part of a frame part 6 of the wind driven generator is connected with a connecting flange 7 through a high-strength bolt during transportation of the wind driven generator, the tail part of the frame part 6 of the wind driven generator is connected with a tail part support 8 of a fan through the high-strength bolt, and after the whole vehicle is loaded, a vehicle belt rope penetrates through the hoisting hooks 10 to fix a special transportation device for the frame part 6; the frame part 6 of the wind turbine falls on a special transportation device for the frame part during transportation. The connecting flange 7 simulates a top tower and is connected to the frame part 6 of the wind turbine. The wind turbine tail support 8 is used for supporting and fixing the tail of the wind turbine frame 6, and prevents the frame 6 from being deformed due to bumping during transportation and preventing the wind turbine from yawing caused by vehicle turning.
As shown in fig. 3, the special transportation device for the transmission chain part comprises a transmission chain base 11, wherein two front gearbox case supporting seats 12, a middle gearbox case supporting seat 13, two gearbox elastic supporting seats 14, two thrust bearing seat supporting seats 15 and two floating bearing seat supporting seats 16 are sequentially arranged on the transmission chain base 11 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 11, and a strand of a transportation vehicle passes through the base lifting hooks for fixation; and the transmission chain part of the wind driven generator falls on the special conveying device for the transmission chain part during conveying. Two anterior gear box body supporting seats 12 and a middle part gear box body supporting seat 13 are all designed and manufactured according to the bottom appearance of the 4 boxes of gear box, all are provided with a plurality of screw holes on anterior gear box body supporting seat 12 and middle part gear box body supporting seat 13, and anterior gear box body supporting seat 12 and middle part gear box body supporting seat 13 play the fixed action to gear box 4 through installing high strength bolt on the supporting seat screw hole when playing the supporting action. The top mounting surfaces of the elastic support seat 14 of the gear box, 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 designed inclination angle of the wind driven generator frame 6, so that the lifting installation is convenient. The gear box elastic support 5 is fixed on two gear box elastic supporting seats 14 through high-strength bolts; and the thrust bearing block 3 is fixedly connected to the two thrust bearing block supporting seats 15 through high-strength bolts. The floating bearing seat 2 is fixedly connected on the floating bearing seat support base 16 through a high-strength bolt.
Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.