CN110145434B - Small blade horizontal shaft fan capable of periodically swinging - Google Patents
Small blade horizontal shaft fan capable of periodically swinging Download PDFInfo
- Publication number
- CN110145434B CN110145434B CN201910565538.XA CN201910565538A CN110145434B CN 110145434 B CN110145434 B CN 110145434B CN 201910565538 A CN201910565538 A CN 201910565538A CN 110145434 B CN110145434 B CN 110145434B
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- shaft
- rod
- sliding sleeve
- fixed
- hub
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- 230000000737 periodic effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000010248 power generation Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D15/00—Transmission of mechanical power
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a small blade horizontal shaft fan capable of periodically swinging, which comprises a tower, a hub, large blades, small blades, a screw shaft, a chain, an upper chain wheel, a lower chain wheel, a hand wheel, a long cylindrical pin rod, a connecting rod, a slide bar, a sliding sleeve, an L-shaped crank rod, a movable gear, a fixed gear, a sliding sleeve supporting ring and a bracket, wherein under the action of wind, the large blades drive the hub to do rotary motion, the hub rotates to drive three movable gears to do planetary motion around the fixed gear, and at the moment, the large blades, the L-shaped crank rod, the connecting rod and the small blades form a crank rocker mechanism; the plane motion of the connecting rod drives the small blades to swing periodically, so that the wind flow speed can be effectively controlled, and the wind energy conversion efficiency is improved. On the other hand, the swing angle of the small blade can be adjusted by changing the position of the sliding block on the L-shaped crank, the structure is scientific, the operation is convenient, and the popularization is worth.
Description
Technical Field
The invention belongs to the technical field of wind power design, and particularly relates to a small-blade horizontal shaft fan capable of periodically swinging.
Background
Along with the increasing development support force of clean energy in China, wind energy is taken as a clean renewable energy source and is increasingly valued by countries around the world. And it is inexhaustible. The wind power generation device is very suitable for coastal islands, grassland pasture areas, mountain areas and plateau areas which are lack of water, fuel and inconvenient in transportation, and can be widely used according to local conditions.
Conventionally, a wind power generation system is a system that converts wind energy into mechanical energy and drives a generator to generate electricity, and relates to a technology for generating electricity by converting wind energy into rotational force. Such wind power generation systems are generally classified into horizontal axis wind power generation systems and vertical axis wind power generation systems. Although the development of the Chinese wind power generation has been in rapid progress in the past 10 years, the accumulated installed capacity is the first place in the world. However, the actual wind energy utilization process has the problems that the utilization rate is less than 10 percent, the wind flow speed cannot be controlled, and the like; there is a need for improvements over existing fans.
Disclosure of Invention
In order to solve the problems, the invention discloses a small-blade horizontal shaft fan capable of periodically swinging, which can control the wind flow speed and improve the wind energy conversion efficiency through the periodic swinging of small blades.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides a but small vane horizontal axis fan of periodic oscillation, includes pylon, wheel hub, big blade, small blade, screw shaft, chain, upper sprocket, lower sprocket, hand wheel, long cylindric lock pole, connecting rod, slide bar, sliding sleeve, L crank pole, movable gear, fixed gear, sliding sleeve support ring, bracket, the pylon side top passes through wheel hub connection three big blade, and three big blade evenly sets up in the wheel hub outside, the wheel hub is inside to be equipped with the cabin axle, the cabin axle includes front axle section, axis section and rear axle section; the front shaft section and the rear shaft section are hollow tubular, three clamping grooves are uniformly distributed on the side surface of the front shaft section, a screw rod supporting hole is formed in the middle shaft section, threads penetrating through the screw rod supporting hole are formed in the front end of the screw rod shaft, the bracket comprises a movable support frame, a fixed support frame and a bracket body, the bracket body is tubular, internal threads are formed in the bracket body, the front end of the outer side of the bracket body is connected with the movable support frame through the threads, the fixed support frame is fixed at the rear end of the outer side of the bracket body, the bracket is arranged at the front end of the screw rod shaft, the movable support frame part and the fixed support frame of the bracket are clamped in three clamping grooves corresponding to the front shaft section of the engine room shaft, an arc-shaped block at the foremost end of the movable support frame and the fixed support frame is arranged at the outer side of the front shaft section, the sliding sleeve supporting ring comprises a ring body part, a supporting rod part and a sleeve ring part, the three ring parts are uniformly fixed at the outer side of the ring body through the supporting rod part, the fixed gear is sleeved on the front shaft section of the engine room shaft, the three movable gears are arranged at the outer side of the fixed gear and meshed with the fixed gear, the ring body part is arranged at the front end of the fixed gear, the fixed support frame part is fixed at the front end of the fixed blade part, the fixed support frame is fixedly connected with a vertical sliding sleeve pin, the sliding sleeve part is connected with a vertical sliding sleeve through a pin, and a long pin, and the sliding sleeve is connected with a vertical sliding sleeve part is arranged at one end, and a vertical sliding sleeve is connected with a vertical pin; the two ends of the sliding rod are respectively connected with the sliding block and the sliding sleeve through hinges, the other end of the connecting rod is connected with the small blade through hinges, the upper chain wheel is arranged at the rear end of the screw shaft, the upper chain wheel is connected with the lower chain wheel below the inner part of the tower through a chain, the lower chain wheel is fixed on a hand wheel shaft, and a hand wheel is fixed at the outer end of the hand wheel shaft.
As an improvement of the invention, the small blade is in the shape of an airfoil.
As an improvement of the invention, the hub is sleeved on the middle shaft section of the cabin shaft and is axially positioned by a clamping ring.
As an improvement of the invention, the fixed gear is sleeved on the front shaft section of the cabin shaft and fixed on the front shaft section of the cabin shaft by a flat key and a clamping ring.
As an improvement of the invention, the screw shaft passes through the screw support hole of the cabin shaft and is axially positioned by a clamping ring.
As an improvement of the invention, the vertical part of the L-shaped crank rod is a round section, and the transverse part is a rectangular section.
As an improvement of the invention, the sliding sleeve is inserted into the collar part of the sliding sleeve supporting ring and is axially positioned by utilizing the shaft shoulder and the snap spring.
As an improvement of the invention, the movable gear is sleeved at the lower part of the vertical part of the L-shaped crank rod, and is circumferentially connected by a flat key and axially positioned by a clamping ring.
The beneficial effects of the invention are as follows:
(1) The small blades are made to swing periodically through a scientific mechanical structure, so that the wind flow speed can be effectively controlled, and the wind energy conversion efficiency is improved.
(2) The swing angle of the small blade is adjusted by changing the position of the sliding block on the L-shaped crank. The swing angle of the small blades is adjusted according to different wind speeds, so that the hydrodynamic attack angle of the blades can be effectively changed, the lift force borne by the blades is improved, and finally the torque of the whole machine is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an enlarged view of a of fig. 1.
Fig. 3 is a schematic view of a sliding sleeve support ring according to the present invention.
Fig. 4 is a schematic view of a bracket according to the present invention.
Fig. 5 is a schematic view of a hub according to the present invention.
FIG. 6 is a schematic view of a nacelle axis according to the invention.
Fig. 7 is a schematic view of an L-shaped crank lever according to the present invention.
FIG. 8 is a schematic view of a screw shaft according to the present invention.
List of reference numerals:
1. small blades, 2, long cylindrical pins, 3, large blades, 4, hubs, 4-1, hub holes, 5, cabin shafts, 5-1, front shaft sections, 5-2, clamping grooves, 5-3, middle shaft sections, 5-4, screw supporting holes, 5-5, rear shaft sections, 6, upper chain wheels, 7, screw shafts, 8, chains, 9, towers, 10, lower chain wheels, 11, hand wheels, 12, hand wheel shafts, 13, connecting rods, 14, L-shaped crank rods, 14-1, straight parts, 14-2, vertical parts, 14-3, pulley grooves, 14-4 and gear grooves; 15. the sliding block comprises a sliding block, 16, a sliding rod, 17, a sliding sleeve, 18, a movable gear, 19, a fixed gear, 20, a sliding sleeve supporting ring, 20-1, a ring body part, 20-2, a supporting rod part, 20-3, a lantern ring part, 21, a bracket, 21-1, a movable supporting frame, 21-2, a fixed supporting frame, 21-3 and a bracket body.
Detailed Description
The present invention is further illustrated in the following drawings and detailed description, which are to be understood as being merely illustrative of the invention and not limiting the scope of the invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
As shown in the figure, the small-blade horizontal shaft fan capable of periodically swinging is characterized in that 3 holes 4-1 are uniformly distributed on a hub 4, large blades 3 are fixed on the hub 4 and uniformly distributed along the circumference of the hub, and the number of the large blades is generally 3; the hub is sleeved on the middle shaft section of the engine room shaft 5 in an empty mode and is axially positioned by a clamping ring, and the hub 4 can freely rotate around the engine room shaft 5; the fixed gear 19 is sleeved on the front shaft section 5-1 of the cabin shaft 5 and is fixed on the front shaft section 5-1 of the cabin shaft by a flat key and a clamping ring; the cabin shaft 5 is fixedly connected with the tower 9, and the tower 9 is fixed on the ground; one end of the long cylindrical pin 2 is fixed on the big blade 3, the other end of the long cylindrical pin is connected with the small blade 1 to form a revolute pair, and one end of the connecting rod 13 is hinged with the sliding block 15; the other end of the connecting rod 13 is hinged with the small blade 1; the small blade 1 can do periodic swinging around the axis of the long cylindrical pin rod 2 under the action of the connecting rod.
The screw shaft 7 passes through the screw supporting hole 5-4 of the cabin shaft and is axially positioned by a clamping ring; the bracket 21 is in threaded connection with the head of the screw shaft 7, and the movable support frame part 21-1 and the fixed support frame 21-2 of the bracket are clamped in three corresponding clamping grooves 5-2 of the front shaft of the cabin shaft; the sliding sleeve support ring 20 is sleeved on the front shaft section of the cabin shaft, and the ring body part 20-1 of the sliding sleeve support ring is clamped between the movable support frame 21-1 and the fixed support frame 21-2 of the bracket 21.
The vertical part 14-2 of the L-shaped crank rod 14 is a round section, and the horizontal part 14-1 is a rectangular section; the central hole of the sliding sleeve 17 penetrates through the vertical part 14-2 of the L-shaped crank rod and is connected by a sliding key, the sliding sleeve 17 can move up and down along the vertical part of the L-shaped crank rod, the sliding sleeve 17 is inserted into the collar part 20-3 of the sliding sleeve supporting ring 20 and is axially positioned by utilizing a shaft shoulder and a clamp spring, and the sliding sleeve 17 can freely rotate along with the collar part 20-3 of the sliding sleeve supporting ring. The sliding block 15 is connected with the transverse straight part 14-1 of the L-shaped rotating frame in a movable pair; two ends of the slide bar 16 are respectively connected with the slide block 15 and the slide sleeve 17 by hinges; the movable gear 18 is sleeved on the lower part of the vertical part 14-2 of the L-shaped crank rod, and is circumferentially connected by a flat key, and is axially positioned by a clamping ring, and the movable gear 18 is meshed with the fixed gear 19; the lower end of the vertical portion 14-2 of the L-shaped crank rod is inserted into the corresponding hole 4-1 of the hub and axially positioned with the shoulder and collar.
The upper chain wheel 6 passes through the right end of the screw shaft 7 and is connected by a key, the lower chain wheel passes through the hand wheel shaft 12 and is connected by a key, the hand wheel shaft 12 passes through a hole at the lower end of the tower, the hand wheel shaft 12 can be axially positioned through a shoulder and a clamping ring, the hand wheel shaft 12 can freely rotate in the hole of the tower, the upper chain wheel and the lower chain wheel are connected by a chain 8, and a hand wheel 11 is fixed at the outer end of the hand wheel shaft 12.
The small blade horizontal shaft fan capable of periodically swinging is creatively designed, and can control the wind flow speed and improve the conversion efficiency of wind energy through the periodic swinging of small blades. The specific working principle is as follows: under the action of wind, the large blades 3 drive the hub to rotate, and the rotation of the hub 4 drives the three movable gears 18 to do planetary motion around the fixed gear 19, namely the movable gears 18 not only revolve along the fixed gear 19 shaft, but also do autorotation around the axis of the movable gears. At this time, the large blade 3, the L-shaped crank rod 14, the connecting rod 13 and the small blade 1 form a crank rocker mechanism; namely, the L-shaped crank rod 14 synchronously rotates under the action of the rotation of the movable gear; the rotation of the L-shaped crank rod 14 drives the connecting rod 13 to do planar motion, and the planar motion of the connecting rod 13 drives the small blades 1 to do periodic swing, so that the wind flow speed can be effectively controlled, and the wind energy conversion efficiency is improved.
The invention is also characterized in that: the swing angle of the small blade 1 is adjustable, namely, the swing angle of the small blade is adjusted by changing the position of the sliding block on the L-shaped crank. The working principle of the adjusting device is as follows: the hand wheel 11 is rotated anticlockwise, the screw shaft 7 is driven to rotate anticlockwise through chain transmission consisting of the lower chain wheel, the chain and the upper chain wheel, the bracket 21 is driven to move upwards (in a direction far away from the large blade) by anticlockwise rotation of the screw shaft 7, and the sliding sleeve supporting ring 20 is driven to move upwards synchronously; thereby driving the sliding sleeve 17 to move upwards, and driving the sliding block 15 to move away from the rotation center of the movable gear through the sliding rod 16; thereby lengthening the crank and increasing the swing angle of the small blade 1; conversely, turning the hand wheel clockwise will cause the small blade 1 to swing less.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features.
Claims (7)
1. The utility model provides a but small blade horizontal axis fan with periodic oscillation which characterized in that: the novel high-speed wind turbine is characterized by comprising a tower (9), a hub (4), big blades (3), small blades (1), a screw shaft (7), a chain (8), an upper chain wheel (6), a lower chain wheel (10), a hand wheel (11), a long cylindrical pin rod (2), a connecting rod (13), a sliding rod (16), a sliding sleeve (17), an L-shaped crank rod (14), a movable gear (18), a fixed gear (19), a sliding sleeve supporting ring (20) and a bracket (21), wherein three big blades (3) are connected above the side of the tower (9) through the hub, the three big blades (3) are uniformly arranged outside the hub (4), a cabin shaft (5) is arranged inside the hub (4), and the cabin shaft (5) comprises a front shaft section (5-1), a middle shaft section (5-3) and a rear shaft section (5-5); the front shaft section (5-1) and the rear shaft section (5-5) are hollow, three clamping grooves (5-2) are uniformly distributed on the side surface of the front shaft section (5-1), one screw supporting hole (5-4) is formed in the middle shaft section (5-3), threads penetrating through the screw supporting hole (5-4) are formed in the front end of the screw shaft (7) and are arranged in the front shaft section (5-1), the bracket (21) comprises a movable supporting frame (21-1), a fixed supporting frame (21-2) and a bracket body (21-3), the bracket body (21-3) is tubular, internal threads are formed in the bracket body (21-3), the front end of the outer side of the bracket body (21-3) is connected with the movable supporting frame (21-1) through the threads, the fixed supporting frame (21-2) is fixed at the rear end of the outer side of the bracket body (21-3), the movable supporting frame (21-1) and the fixed supporting frame (21-2) are clamped in the corresponding three clamping grooves (21-2) of the front shaft section of the cabin shaft (7) and are arranged in the front end of the arc-shaped supporting frame (1), the sliding sleeve support ring (20) comprises a ring body part (20-1), a support rod part (20-2) and a sleeve ring part (20-3), wherein the three sleeve ring parts (20-3) are uniformly fixed on the outer side of the ring body part (20-1) through the support rod part (20-2), the fixed gear (19) is sleeved on the front shaft section (5-1) of the engine room shaft, the three movable gears (18) are arranged on the outer side of the fixed gear (19) and meshed with the fixed gear (19), the ring body part (20-1) is arranged at the front end of the fixed gear (19), the ring body part (20-1) is clamped between the movable support frame (21-1) and the fixed support frame (21-2), the sliding sleeve (17) is inserted into the sleeve ring part (20-3), the L-shaped crank rod (14) comprises a transverse straight part (14-1) and a vertical part (14-2), the vertical part (14-2) penetrates through the sliding sleeve (17) and is connected with the hub (4), the sliding block (14-1) is provided with a sliding block (15), the other end of the sliding block (14-1) is provided with a large pin (3) and the other end of the sliding block (2) is connected with the large pin (1), one end of the connecting rod (13) is hinged with the sliding block (15); the two ends of the sliding rod (16) are respectively connected with the sliding block (15) and the sliding sleeve (17) through hinges, the other end of the connecting rod (13) is connected with the small blade (1) through hinges, the upper chain wheel (6) is arranged at the rear end of the screw shaft (7), the upper chain wheel (6) is connected with the lower chain wheel (10) below the inner part of the tower through a chain (8), the lower chain wheel (10) is fixed on the hand wheel shaft (12), and the hand wheel (11) is fixed at the outer end of the hand wheel shaft (12);
the small blade (1) is in an airfoil shape;
the hub (4) is sleeved on a middle shaft section (5-3) of the cabin shaft and is axially positioned by a clamping ring.
2. A bladelett horizontal axis fan having a periodically swingable motion as defined in claim 1, wherein: the fixed gear (19) is sleeved on the front shaft section (5-1) of the engine room shaft and is fixed on the front shaft section of the engine room shaft by a flat key and a clamping ring.
3. A bladelett horizontal axis fan having a periodically swingable motion as defined in claim 1, wherein: the screw shaft (7) passes through the screw support hole of the cabin shaft and is axially positioned by a clamping ring.
4. A bladelett horizontal axis fan having a periodically swingable motion as defined in claim 1, wherein: the vertical part (14-2) of the L-shaped crank rod is of a round section, and the horizontal part (14-1) is of a rectangular section.
5. A bladelett horizontal axis fan having a periodically swingable motion as defined in claim 1, wherein: the sliding sleeve (17) is inserted into the collar part (20-3) of the sliding sleeve supporting ring and is axially positioned by utilizing the shaft shoulder and the snap spring.
6. A bladelett horizontal axis fan having a periodically swingable motion as defined in claim 1, wherein: the movable gear (18) is sleeved on the lower part of the vertical part (14-2) of the L-shaped crank rod, and is circumferentially connected by a flat key and axially positioned by a clamping ring.
7. The method of using a periodically swinging bladelet horizontal axis fan according to claim 1, wherein: under the action of wind, the large blades (3) drive the hub to do rotary motion, and the rotation of the hub (4) drives the three movable gears (18) to do planetary motion around the fixed gear (19), namely the movable gears (18) do revolution along the fixed gear (19) shaft and do autorotation around the axis of the movable gears; at the moment, the big blade (3), the L-shaped crank rod (14), the connecting rod (13) and the small blade (1) form a crank rocker mechanism; the L-shaped crank rod (14) synchronously rotates under the action of the rotation of the movable gear; the rotation of the L-shaped crank rod (14) drives the connecting rod (13) to do plane motion, and the plane motion of the connecting rod (13) drives the small blade (1) to do periodic swing;
on the other hand, the swing angle of the small blade (1) is adjustable, and the screw shaft (7) is driven to rotate anticlockwise through the chain transmission consisting of the lower chain wheel, the chain and the upper chain wheel by rotating the hand wheel (11) anticlockwise, and the bracket (21) is driven to move upwards by the anticlockwise rotation of the screw shaft (7) so as to drive the sliding sleeve supporting ring (20) to move upwards synchronously; thereby driving the sliding sleeve (17) to move upwards, and driving the sliding block (15) to move away from the rotation center of the movable gear through the sliding rod (16); thereby lengthening the crank and increasing the swing angle of the small blade (1); conversely, rotating the hand wheel clockwise will reduce the swing angle of the small blade (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565538.XA CN110145434B (en) | 2019-06-27 | 2019-06-27 | Small blade horizontal shaft fan capable of periodically swinging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565538.XA CN110145434B (en) | 2019-06-27 | 2019-06-27 | Small blade horizontal shaft fan capable of periodically swinging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110145434A CN110145434A (en) | 2019-08-20 |
| CN110145434B true CN110145434B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910565538.XA Active CN110145434B (en) | 2019-06-27 | 2019-06-27 | Small blade horizontal shaft fan capable of periodically swinging |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115191420B (en) * | 2022-06-27 | 2024-01-23 | 国网山东省电力公司曲阜市供电公司 | Bird repellent device of electric power tower |
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| CN102162427A (en) * | 2011-06-08 | 2011-08-24 | 南通大学 | Perpendicular shaft wind turbine rotor with adjustable dip angles of blades |
| EP2957768A1 (en) * | 2014-06-16 | 2015-12-23 | Cockerill Maintenance & Ingenierie S.A. | Improved vertical axis wind turbine |
| CN105736243A (en) * | 2016-05-12 | 2016-07-06 | 武汉国能华瀛新科技有限公司 | Closed-loop controlling system for horizontal-axis wind turbine |
| CN205663565U (en) * | 2016-05-31 | 2016-10-26 | 山东大学 | Pendulum wing formula energy by ocean current power generation facility |
| CN207333098U (en) * | 2017-09-11 | 2018-05-08 | 中国石油大学(华东) | A kind of adjust automatically attack angle of blade vertical axis aerogenerator |
| CN108488034A (en) * | 2018-03-28 | 2018-09-04 | 邵阳学院 | Radius of turn adjustable vertical shaft type aerogenerator automatically |
| CN108457795A (en) * | 2018-04-26 | 2018-08-28 | 丁超 | The wind turbines rotor of automatic variable-pitch and disability protection |
| CN210087539U (en) * | 2019-06-27 | 2020-02-18 | 金陵科技学院 | Small-blade horizontal shaft fan capable of periodically swinging |
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