CN220869690U

CN220869690U - Large-scale wind device

Info

Publication number: CN220869690U
Application number: CN202322745782.9U
Authority: CN
Inventors: 李西岳
Original assignee: Shanghai Puyu Copper Art Decoration Engineering Co ltd
Current assignee: Shanghai Puyu Copper Art Decoration Engineering Co ltd
Priority date: 2023-10-12
Filing date: 2023-10-12
Publication date: 2024-04-30
Anticipated expiration: 2033-10-12

Abstract

The application relates to the technical field of wind making, and discloses a large wind making device which comprises a wind cover and an annular rail, wherein the annular rail is positioned in the wind cover, an air outlet is formed in the top end of the wind cover, an air inlet channel is formed in the bottom end of the wind cover, a plurality of driving mechanisms are arranged on the annular rail in an equidistant and encircling manner, each driving mechanism is provided with a fan blade, a power supply mechanism for supplying electric energy for the driving mechanisms is arranged on the annular rail, and the driving mechanisms synchronously move on the annular rail in an encircling manner and drive the fan blades to move. According to the application, each fan blade is independently driven by one driving mechanism, and the plurality of driving mechanisms drive the plurality of fan blades to synchronously move on the annular track, so that the load born by the driving mechanisms can be reduced, and the air making device can still stably operate for a long time under the condition that the size of the fan blades is increased, and the air making quantity of the air making device can be increased.

Description

Large-scale wind device

Technical Field

The application relates to the field of wind making technology, in particular to a large-scale wind making device.

Background

The large-scale wind making device has multiple functions of gas conveying, ventilation, drying and the like, and is characterized by large volume, low energy consumption and large conveying capacity. Along with the development of technology and market demands, the application field of large-scale wind making devices is becoming wider and wider.

At present, most of large-scale wind making devices are fans, and the fans comprise driving motors and blades, and the driving motors drive the blades to rotate, so that wind can be made. The length of the blade determines the wind pressure of the fan, and the longer the length of the blade is, the larger the wind pressure of the fan is, and the larger the wind volume per unit time is.

However, after the length of the blade is increased, the contact area between the blade and the air is increased, and the load resistance of the driving motor is also increased, so that the driving motor is easy to damage after long-time use, and the fan is difficult to stably run for a long time.

Disclosure of utility model

In order to increase the air-making quantity of the air-making device under the condition that the air-making device stably operates for a long time, the application provides a large-scale air-making device.

The application provides a large-scale wind making device which adopts the following technical scheme:

The utility model provides a large-scale wind device that makes, includes fan housing and annular rail, annular rail is located the fan housing, the air outlet has been seted up on the fan housing top, and the bottom is formed with the air inlet passageway, equidistant surrounding is provided with a plurality of actuating mechanism on the annular rail, every all be provided with the fan blade on the actuating mechanism, be provided with the power supply unit who is used for providing the electric energy for a plurality of actuating mechanism on the annular rail, a plurality of actuating mechanism is synchronous to encircle on annular rail and remove and drive a plurality of fan blades and remove.

Through adopting above-mentioned technical scheme, power supply mechanism provides electric power for a plurality of actuating mechanism encircle the removal in step on the annular track, and actuating mechanism drives the fan blade and removes, and a plurality of fan blades remove along annular track circumference synchronization, and inhale the fan housing with external air from the air inlet passageway in, under the fan blade effect, by the air of inhaling the fan housing from the air outlet exhaust fan housing, thereby can make the wind. So set up, every fan blade is driven by a actuating mechanism alone, and a plurality of actuating mechanism drives a plurality of fan blades synchronous motion on the annular track, can reduce the load that actuating mechanism received, under the circumstances of fan blade size increase, make wind device still can long-time steady operation, and then can increase the wind volume of making of wind device.

Preferably, the driving mechanism comprises a trolley shell, a driving piece, a transmission piece and a plurality of rollers, the fan blade is fixedly arranged on the trolley shell, the rollers are rotatably arranged on two sides of the trolley shell, the driving piece is arranged in the trolley shell, the rollers are in transmission connection with the driving piece through the transmission piece, and the rollers are arranged on the annular track in a rolling mode.

Through adopting above-mentioned technical scheme, the driving piece drives a plurality of gyro wheels through the driving medium and rotates, and a plurality of gyro wheels roll on the annular track, and then drives the dolly shell and remove, and the dolly shell drives the fan blade again and removes on the annular track. So set up, a driving piece drives a fan blade and removes, and a plurality of gyro wheels roll on annular track to make the fan blade remove more stably.

Preferably, the thickness of the bottom end of the fan blade close to the trolley shell is larger than the thickness of the top end of the fan blade far away from the trolley shell, and the height of the front end of the fan blade close to the moving direction is lower than the height of the rear end of the fan blade far away from the moving direction.

Through adopting above-mentioned technical scheme, the thickness of fan blade bottom is bigger makes the structural strength of fan blade higher, and the fan blade is close to the front end of direction of movement low, the rear end is high for the windmaking effect of fan blade is better.

Preferably, the trolley shell is provided with a reinforcing rib, and the reinforcing rib is fixedly connected with the side wall of the fan blade away from the center of the annular guide rail.

By adopting the technical scheme, when the fan blade moves, the reinforcing ribs support the fan blade, so that the structural strength of the fan blade is improved.

Preferably, the end part of the trolley shell along the moving direction of the trolley shell is provided with a connecting piece, a plurality of trolley shells are sequentially connected end to end through the connecting piece, and a movable gap is formed between the two trolley shells end to end.

By adopting the technical scheme, the plurality of driving mechanisms are sequentially connected through the connecting piece, so that the relative positions among the fan blades are not easy to change when the plurality of fan blades move, and the wind making device is more stable in wind making; at the same time, the movable gap provides a slight movement gap for the plurality of trolley shells, thereby improving the stability of the movement of the driving mechanism on the circular track.

Preferably, the annular rail comprises a rail bracket, an inner rail and an outer rail, wherein the rail bracket is hollow and positioned in the fan cover, the inner rail and the outer rail are coaxially arranged on the rail bracket, and the rollers are respectively arranged on the inner rail and the outer rail in a rolling manner.

Through adopting above-mentioned technical scheme, track support supports inboard track and outside track, and the gyro wheel rolls on inboard track and the outside track to make actuating mechanism remove more stably on annular track, and then make the fan blade remove more stably. Simultaneously, the track support that inside cavity set up makes external air can get into in the fan housing through the air inlet passageway.

Preferably, each roller is provided with a baffle ring, and a plurality of baffle rings are respectively abutted against the side walls of the inner side rail and the outer side rail, which are close to each other.

Through adopting above-mentioned technical scheme, when the gyro wheel rolls on inboard track and outside track, the baffle ring is spacing to the gyro wheel for the gyro wheel is difficult for slipping from inboard track and outside track, and then improves the stability that actuating mechanism removed.

Preferably, the fan housing comprises a fixing frame and a housing body, the fixing frame is arranged on the annular track in a covering mode, the housing body is arranged in the fixing frame, the outer wall of the housing body is abutted to the inner wall of the fixing frame, the air outlet is formed in the top end of the housing body, the bottom end height of the housing body is larger than or equal to the top end height of the track support, the air inlet channel is formed in the fixing frame in the bottom end of the housing body, the inner diameters of the bottom portions of the housing body are the same, and the inner diameters of the top portions of the housing body gradually decrease towards the direction close to the air outlet.

Through adopting above-mentioned technical scheme, external air is inhaled in the cover body through air inlet channel and track support, discharges from the air outlet again, and gaseous exhaust in-process, the internal diameter of cover reduces gradually for the wind pressure of wind makes strengthens gradually, and simultaneously, the mount supports the cover body, when making the wind pressure of wind strengthen, the cover body still can keep stable.

Preferably, the power supply mechanism comprises a power supply ring, a plurality of conductive pieces and a support rod, wherein the support rod is fixedly arranged at the bottom of the power supply ring at equal intervals, the power supply ring is positioned on the inner side of the annular track, the conductive pieces are respectively fixedly arranged on the side walls of the plurality of trolley shells, which are close to the power supply ring, the conductive pieces are electrically connected with the driving pieces, and the conductive pieces are abutted to the power supply ring.

Through adopting above-mentioned technical scheme, the power cord provides electric power for the power supply ring, and the power supply ring provides electric power for the driving piece through electrically conductive piece for actuating mechanism can drive the fan blade and remove on annular guide rail, and at actuating mechanism removal in-process, the dolly shell drives electrically conductive piece and removes, and electrically conductive piece in-process elasticity butt power supply ring all the time makes electrically conductive piece can last to provide electric power for actuating mechanism.

Preferably, the electric conduction piece comprises a conductive rod and an elastic piece, one end of the conductive rod is arranged on the trolley shell and is electrically connected with the driving piece, the other end of the conductive rod is bent downwards and is abutted to the inner side of the power supply ring, the elastic piece is arranged on the conductive rod, and two ends of the elastic piece are respectively fixedly connected with two bent ends of the conductive rod and enable the end part of the conductive rod to be always abutted to the power supply ring in the moving process.

Through adopting above-mentioned technical scheme, when actuating mechanism removes, the dolly shell drives the conducting rod and removes, thereby the conducting rod butt power supply ring provides electric power for the driving piece, and the conducting rod is when removing, and the elastic component acts on the conducting rod for the tip of conducting rod can support the interior lateral wall of tight power supply ring all the time, and then improves the stability of power supply mechanism power supply.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The plurality of driving mechanisms are adopted to drive the plurality of fan blades to synchronously move, each fan blade is independently driven by one driving mechanism, so that the load born by the driving mechanism can be reduced, and the wind making device can still stably operate for a long time under the condition that the size of the fan blade is increased, and the wind making quantity of the wind making device can be increased;

2. The fan blade with larger bottom thickness is adopted, so that the structural strength of the fan blade is higher, the front end of the fan blade close to the moving direction is low, and the rear end of the fan blade is high, and the wind making effect of the fan blade is better;

3. Through adopting the connecting piece to connect gradually a plurality of dolly shells for when a plurality of fan blades remove, the relative position between the fan blade is difficult for taking place to change, and then makes the wind device more stable when making the wind.

Drawings

FIG. 1 is a schematic view of the overall structure of a large-scale wind making device of the present application;

FIG. 2 is a cross-sectional view of the overall structure of the large-scale wind making device of the present application;

FIG. 3 is a top view of a portion of the structure of a large scale wind making apparatus of the present application;

FIG. 4 is an exploded view of a portion of the construction of the large wind-making apparatus of the present application showing the annular track and power supply mechanism in a protruding manner;

FIG. 5 is a schematic view of the positive structure of the large wind-making device of the present application showing the driving mechanism in a protruding manner;

FIG. 6 is a schematic view of a part of a large-scale wind making device with a protruding display driving mechanism.

Reference numerals illustrate: 1. a fan housing; 11. a fixing frame; 12. a cover body; 2. an endless track; 21. a track bracket; 22. an inner rail; 23. an outer rail; 3. an air outlet; 4. an air inlet channel; 5. a driving mechanism; 51. a trolley housing; 52. a driving member; 53. a transmission member; 54. a roller; 6. a fan blade; 7. a power supply mechanism; 71. a power supply ring; 72. a conductive member; 721. a conductive rod; 722. an elastic member; 73. a support rod; 8. reinforcing ribs; 9. a connecting piece; 10. a baffle ring; 13. a backing plate; 14. balancing weight; 15. a clearance gap.

Detailed Description

The application is described in further detail below with reference to fig. 1-6.

The embodiment of the application discloses a large-scale wind making device.

Referring to fig. 1 and 2, a large-sized wind generating apparatus includes a wind housing 1 fixedly installed on the ground and an annular rail 2, the wind housing 1 is housed on the annular rail 2, a circular air outlet 3 is formed at the top end of the wind housing 1, an annular air inlet channel 4 is formed at the bottom end of the wind housing 1 and at the outer circumferential side of the annular rail 2, and external air can enter the wind housing 1 through the air inlet channel 4 and be discharged from the air outlet 3 to the wind housing 1.

Nine driving mechanisms 5 are arranged on the annular track 2 in an equidistant encircling rolling manner, fan blades 6 are fixedly arranged at the top end of each driving mechanism 5, and a power supply mechanism 7 for supplying power to the nine driving mechanisms 5 is arranged on the inner side of the annular track 2.

Nine driving mechanisms 5 drive nine fan blades 6 to synchronously move on the annular track 2, wind generation can be carried out when the nine fan blades 6 move, external air is sucked into the fan housing 1 through the air inlet channel 4, and then the fan housing 1 is discharged from the air outlet 3, so that wind generation is completed. Each fan blade 6 is independently driven by one driving mechanism 5, and a plurality of driving mechanisms 5 drive a plurality of fan blades 6 to synchronously move on the annular track 2, so that the load born by the driving mechanisms 5 can be reduced. Under the condition that the size of the fan blade 6 is increased, the wind making device can still stably operate for a long time, and then the wind making quantity of the wind making device can be increased.

In the present application, the diameter of the annular rail 2 is not limited, and the annular rail 2 with different diameters is provided according to the actually required air volume, and the larger the required air volume is, the larger the diameter of the annular rail 2 is. Meanwhile, the number of the driving mechanisms 5 is not limited, and the larger the diameter of the annular rail 2 is, the larger the number of the driving mechanisms 5 is required, and the plurality of driving mechanisms 5 can be wound around the annular rail 2 in one circle.

Referring to fig. 3, one end of each adjacent two driving mechanisms 5, which is close to each other, is connected by a connecting piece 9, the first and second driving mechanisms 5 are not connected, and a movable gap 15 is formed between the first and second driving mechanisms 5. In the application, the connecting piece 9 can be a movable hinge, and two movable ends of the movable hinge are respectively and fixedly connected with the two driving mechanisms 5.

Eight connecting pieces 9 connect gradually nine actuating mechanism 5 for when actuating mechanism 5 high-speed removal, the relative position between nine blades is difficult for taking place to change, and then makes the wind making device more stable when making wind. The running clearance 15 provides a slight movable clearance for the plurality of drive mechanisms 5, thereby improving the stability of the movement of the drive mechanisms 5 on the endless track 2.

Referring to fig. 1 and 2, specifically, the fan housing 1 includes a fixing frame 11 and a housing 12, the bottom ends of the fixing frame 11 are fixedly installed on the ground, the diameters of the bottom ends of the fixing frame 11 are the same and are housed on the annular track 2, and the diameters of the top ends of the fixing frame 11 are gradually reduced. The cover body 12 is welded and fixed on the inner side of the fixing frame 11, the outer side wall of the cover body 12 is attached to the inner side of the fixing frame 11, the diameters of the bottom ends of the cover body 12 are the same, and the diameters of the top ends of the cover body 12 are gradually reduced. The air outlet 3 is formed at the top of the cover 12, the height of the bottom wall of the cover 12 is equal to the height of the top of the annular track 2, and the air inlet channel 4 is formed at the position, below the bottom wall of the cover 12, of the fixing frame 11.

Outside air gets into the cover body 12 by air inlet channel 4 and discharges the cover body 12 from air outlet 3, and the air discharge in-process, the internal diameter of the cover body 12 reduces gradually to can increase the wind pressure, simultaneously, mount 11 supports the cover body 12, when making the wind pressure reinforcing of wind, the cover body 12 still can keep stable.

Referring to fig. 4, in detail, the circular rail 2 includes a rail bracket 21, an inner rail 22 and an outer rail 23, the rail bracket 21 is fixedly installed on the ground and is located in the fixing frame 11, and the inside of the rail bracket 21 is hollow so that external air can enter the cover 12 through the air inlet channel 4. The top wall of the track bracket 21 is coaxially and fixedly provided with two base plates 13, the two base plates 13 are respectively positioned on the inner side and the outer side of the track bracket 21, the inner side track 22 and the outer side track 23 are coaxially and fixedly arranged on the two base plates 13, and the inner side track 22 is positioned on the inner side of the outer side track 23.

The driving mechanism 5 rolls on the inner rail 22 and the outer rail 23, so that the fan blade 6 can be driven to move. The pad 13 serves as a buffer for the rail bracket 21 during high-speed movement of the drive mechanism 5.

Referring to fig. 5 and 6, specifically, the driving mechanism 5 includes a cart housing 51, a driving member 52, two transmission members 53 and four rollers 54, the cart housing 51 is arranged in an arc shape along the circumference of the track bracket 21, the interior of the cart housing 51 is hollow and has an opening at the bottom, the connecting member 9 is fixedly mounted at the end of the cart housing 51 in the moving direction, and the fan blade 6 is fixedly mounted at the top end of the cart housing 51. The driving member 52 is fixedly installed in the inner cavity of the trolley housing 51 from the bottom opening end of the trolley housing 51, and in the application, the driving member 52 can be selected as a double-head spindle motor.

Referring to fig. 4 and 6, two driving members 53 are respectively installed at both sides of the carriage housing 51 at the driving member 52, the two driving members 53 are respectively connected to the two driving ends of the driving member 52, four rollers 54 are rotatably installed at both inner and outer sides of the carriage housing 51, each driving member 53 is in driving connection with the two rollers 54 at both inner and outer sides of the carriage housing 51, and the rollers 54 are rollingly installed on the inner rail 22 and the outer rail 23. In the application, the transmission member 53 is a shaft coupling and a rotating shaft, two ends of the rotating shaft are respectively and fixedly connected with two rollers 54 at the inner side and the outer side of the trolley shell 51, one end of the shaft coupling is in transmission connection with the rotating shaft through a bevel gear set, and the other end of the shaft coupling is fixedly connected with a driving shaft of the driving member 52.

The driving member 52 drives the four rollers 54 to synchronously rotate through the two transmission members 53, and the rollers 54 roll on the inner rail 22 and the outer rail 23, so that the trolley shell 51 drives the fan blade 6 to move.

The side wall of the circumference of each roller 54 is fixedly provided with a baffle ring 10 at one end close to the trolley, and the four baffle rings 10 are respectively abutted against the side walls of the inner side rail 22 and the outer side rail 23 which are close to each other. The baffle ring 10 limits the roller 54, so that the roller 54 is not easy to slip from the inner rail 22 and the outer rail 23, and the moving stability of the driving mechanism 5 is improved.

Referring to fig. 2 and 5, one end of the fan blade 6 near the moving direction thereof is inclined toward the outside of the circular rail 2, the front end of the fan blade 6 near the moving direction thereof is lower than the rear end thereof far from the moving direction, and the thickness of the bottom end of the fan blade 6 near the carriage housing 51 is greater than the thickness of the top end thereof. Therefore, the wind making effect of the fan blade 6 is better, and the structural strength of the fan blade 6 is higher.

The fan blade 6 is kept away from the inside lateral wall of annular track 2 and fixedly mounted with three strengthening rib 8, and the bottom of strengthening rib 8 and dolly shell 51 top fixed connection, and a plurality of holes have been seted up in the strengthening rib 8. When the fan blade 6 moves, the reinforcing ribs 8 support the fan blade 6, so that the structural strength of the fan blade 6 is improved, holes in the reinforcing ribs 8 facilitate air to pass through, and the resistance applied to the fan blade 6 during movement can be reduced.

Referring to fig. 4 and 6, specifically, the power supply mechanism 7 includes a power supply ring 71, nine conductive members 72, and six support rods 73, the six support rods 73 are all installed on the ground and located inside the track bracket 21, and the six support rods 73 are fixedly connected by a connecting rod in the horizontal direction. The power supply ring 71 is placed on the outer side of the top ends of the six support rods 73, the power line is connected with the power supply ring 71 and supplies power to the power supply ring, the nine conductive pieces 72 are respectively installed on the side walls, close to the inner sides of the track brackets 21, of the nine trolley shells 51, the conductive pieces 72 are electrically connected with the driving pieces 52, and the conductive pieces 72 are abutted against the power supply ring 71.

The power line provides power for the nine driving pieces 52 through the power supply ring 71 and the conductive piece 72, so that the nine driving mechanisms 5 can synchronously drive the nine fan blades 6 to move.

The conductive member 72 includes a conductive rod 721 and an elastic member 722, wherein the conductive rod 721 is L-shaped, one end of the conductive rod 721 is fixedly mounted on a side wall of the trolley case 51 and electrically connected with the driving member 52, and the other end of the conductive rod 721 is bent downward and abuts against the outer side of the power feeding ring 71. The two ends of the elastic member 722 are fixedly connected to the bottom walls of the two bending rods of the conductive rod 721, respectively, and in the present application, the elastic member 722 may be a spring. By the elastic action of the elastic member 722, the conductive rod 721 can always abut against the outer side of the power feeding ring 71 when the driving mechanism 5 moves at a high speed, so that the stability of the power feeding mechanism 7 is improved.

The implementation principle of the embodiment of the application is as follows: the power line provides power for nine driving pieces 52 through a power supply ring 71 and a conductive piece 72, the nine driving pieces 52 drive the trolley shell 51 to synchronously move on the annular track 2 through a transmission piece 53 and a roller 54, and then drive nine fan blades 6 to move, wind generation can be carried out when the nine fan blades 6 move, external air is sucked into the wind shield 1 through the air inlet channel 4, and then the wind shield 1 is discharged from the air outlet 3, so that wind generation is completed. Each fan blade 6 is independently driven by one driving mechanism 5, a plurality of driving mechanisms 5 drive a plurality of fan blades 6 to synchronously move on the annular track 2, the load born by the driving mechanisms 5 can be reduced, the wind making device can still stably operate for a long time under the condition that the size of the fan blades 6 is increased, and then the wind making quantity of the wind making device can be increased.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. A large-scale wind making device, characterized in that: including fan housing (1) and annular rail (2), annular rail (2) are located fan housing (1), air outlet (3) have been seted up on fan housing (1) top, and the bottom is formed with air inlet channel (4), equidistant surrounding is provided with a plurality of actuating mechanism (5) on annular rail (2), every all be provided with fan blade (6) on actuating mechanism (5), be provided with on annular rail (2) and be used for providing power supply mechanism (7) of electric energy for a plurality of actuating mechanism (5), a plurality of actuating mechanism (5) are synchronous to encircle on annular rail (2) and remove and drive a plurality of fan blades (6) and remove.

2. A large scale wind making apparatus according to claim 1, wherein: the driving mechanism (5) comprises a trolley shell (51), a driving piece (52), a transmission piece (53) and a plurality of rollers (54), wherein the fan blades (6) are fixedly arranged on the trolley shell (51), the rollers (54) are rotatably arranged on two sides of the trolley shell (51), the driving piece (52) is arranged in the trolley shell (51), the rollers (54) are in transmission connection with the driving piece (52) through the transmission piece (53), and the rollers (54) are arranged on the annular track (2) in a rolling mode.

3. A large scale wind making apparatus according to claim 2, wherein: the thickness of the bottom end of the fan blade (6) close to the trolley shell (51) is larger than the thickness of the top end of the fan blade far away from the trolley shell (51), and the height of the front end of the fan blade (6) close to the moving direction is lower than the height of the rear end of the fan blade far away from the moving direction.

4. A large scale wind making apparatus according to claim 3, wherein: the trolley is characterized in that a reinforcing rib (8) is arranged on the trolley shell (51), and the reinforcing rib (8) is fixedly connected with the side wall of the fan blade (6) away from the center of the annular guide rail.

5. A large scale wind making apparatus according to claim 2, wherein: the end part of the trolley shell (51) along the moving direction of the trolley shell is provided with a connecting piece (9), a plurality of trolley shells (51) are sequentially connected end to end through the connecting piece (9), and a movable gap (15) is formed between the two trolley shells (51).

6. A large scale wind making apparatus according to claim 2, wherein: the annular track (2) comprises a track support (21), an inner track (22) and an outer track (23), wherein the track support (21) is hollow and located in the fan housing (1), the inner track (22) and the outer track (23) are coaxially arranged on the track support (21), and a plurality of rollers (54) are respectively arranged on the inner track (22) and the outer track (23) in a rolling mode.

7. The large-scale wind-making device according to claim 6, wherein: each roller (54) is provided with a baffle ring (10), and a plurality of baffle rings (10) are respectively abutted against the side walls of the inner side rail (22) and the outer side rail (23) which are close to each other.

8. The large-scale wind-making device according to claim 6, wherein: the fan housing (1) includes mount (11) and cover body (12), mount (11) cover is established on annular track (2), cover body (12) set up in mount (11), just cover body (12) outer wall butt mount (11) inner wall, air outlet (3) form the top at cover body (12), cover body (12) bottom height is greater than or equal to track support (21) top height, just air inlet channel (4) form in mount (11) of cover body (12) bottom, cover body (12) bottom internal diameter is the same, cover body (12) top internal diameter reduces gradually towards being close to air outlet (3) direction.

9. A large scale wind making apparatus according to claim 2, wherein: the power supply mechanism (7) comprises a power supply ring (71), a plurality of conductive pieces (72) and a supporting rod (73), wherein the supporting rods (73) are fixedly arranged at the bottom of the power supply ring (71) at equal intervals, the power supply ring (71) is located on the inner side of the annular track (2), the conductive pieces (72) are fixedly arranged on the side walls, close to the power supply ring (71), of the plurality of trolley shells (51) respectively, the conductive pieces (72) are electrically connected with the driving piece (52), and the conductive pieces (72) are abutted to the power supply ring (71).

10. A large scale wind making apparatus according to claim 9, wherein: the electric conduction piece (72) comprises an electric conduction rod (721) and an elastic piece (722), one end of the electric conduction rod (721) is arranged on the trolley shell (51) and is electrically connected with the driving piece (52), the other end of the electric conduction rod (721) is bent downwards and is abutted to the inner side of the power supply ring (71), the elastic piece (722) is arranged on the electric conduction rod (721), and two ends of the elastic piece (722) are fixedly connected with two bent ends of the electric conduction rod (721) respectively and enable the end part of the electric conduction rod (721) to be always abutted to the power supply ring (71) in the moving process.