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CN-121976922-A - Vertical axis wind turbine external field testing device

CN121976922ACN 121976922 ACN121976922 ACN 121976922ACN-121976922-A

Abstract

The invention discloses a vertical axis wind turbine external field testing device. The dumbbell disk with the T-shaped groove is matched with the clamping groove, so that the multi-blade structure can be flexibly arranged. The tester installs different numbers of connecting rods on the T-shaped chuck according to the requirement, namely, two connecting rods with an included angle of 180 degrees are installed to perform double-blade test, three-blade test is realized by three included angles of 120 degrees, four-blade test is completed by four included angles of 90 degrees, and six-blade test is supported by six included angles of 60 degrees. Through adjusting the connecting rod quantity and fixed, can change the flabellum structure fast, satisfy the wind field test demand of different flabellum quantity. A push rod is eccentrically arranged on the turntable to adjust the attack angle of the fan blade. After the fixed wheel is disconnected with the transmission rod, the driving wheel is rotated by the driving rod to drive the turntable and the pushing rod to act, so that the fan blade rotates around the connecting rod to change the attack angle. By adjusting the position of the turntable on the transmission rod, pneumatic data under different attack angles can be obtained, and the testing flexibility is further enhanced.

Inventors

  • ZHANG YANFENG
  • ZHANG SHIBO
  • ZHANG ZUOLING
  • ZHANG TINGTING
  • WANG ZE
  • JIANG YU
  • LI YUNLONG

Assignees

  • 内蒙古工业大学

Dates

Publication Date
20260505
Application Date
20260127

Claims (7)

  1. 1. The utility model provides a vertical axis wind turbine outfield testing arrangement, includes transfer line (1), its characterized in that: Dumbbell disks (201) fixedly arranged on a transmission rod (1) and provided with T-shaped chucks (202) on two sides of the dumbbell disks, a plurality of T-shaped grooves (203) are arranged on each T-shaped chuck (202) according to a circumferential equidistant array, the inner surfaces of the T-shaped grooves (203) are in contact connection with the outer surfaces of T-shaped blocks (205) at one end of a connecting rod (204), the middle surfaces of the connecting rod (204) are in contact with the inner surfaces of clamping grooves (206) at the edge of the dumbbell disks (201), and the other ends of the connecting rod (204) are hinged with one side surfaces of fan blades (207); The rotary table (301) is rotatably arranged on the transmission rod (1), one ends of a plurality of pushing rods (304) are eccentrically hinged to the rotary table (301), a toggle wheel (302) in contact connection with the outer surface of the transmission rod (1) and a fixed wheel (303) in contact connection with the outer surface of the transmission rod (1) are sequentially fixed on the upper surface of the rotary table (301) along the extending direction of the transmission rod (1), the other ends of the pushing rods (304) are hinged to a driven plate (305) fixedly arranged on the fan blades (207), the connecting point of the pushing rods (304) and the driven plate (305) is close to one side of the driven plate (305), and the lower surface of the rotary table (301) is in contact connection with the upper surface of a tray (306) fixedly arranged on the transmission rod (1); a flange (307) of the shaft center rod (5) is fixedly arranged at the axle center of the transmission rod (1); the device comprises a generator (401), a rotation speed sensor (402) and a torque sensor (403) which are fixedly arranged in a test box (4) and fixedly connected with an axle center rod (5).
  2. 2. The external field testing device for the vertical axis wind turbine of claim 1, wherein the T-shaped chuck (202) is cylindrical, the upper surface of the T-shaped chuck is connected with the cover plate (208) in a contact manner, screw holes are formed in the cover plate (208), screw holes for the pair of screw holes in the cover plate (208) are formed in the T-shaped chuck (202), and the screw holes in the T-shaped chuck (202) are located between each T-shaped groove (203).
  3. 3. The external field testing device for the vertical axis wind turbine according to claim 1, wherein the connecting rods (204) on two sides of the dumbbell disc (201) are fixed through two screw plates (209) and screws (210), the two screw plates (209) are respectively in contact connection with one side surface of the two connecting rods (204), screw holes are formed in the screw plates (209), and the screws (210) are screwed into the screw holes in the two screw plates (209) to fix the two screw plates (209).
  4. 4. The external field testing device of the vertical axis wind turbine of claim 1, wherein four through holes are formed in the surface of the poking wheel (302) at equal intervals along the circumference.
  5. 5. The external field testing device for the vertical axis wind turbine of claim 1, wherein the surface of the fixed wheel (303) is provided with a screw hole, a first fixed screw (3031) is screwed in the screw hole, one end of the first fixed screw (3031) is fixedly connected with one side of an arc-shaped contact plate (3032), and the other side of the arc-shaped contact plate (3032) is in contact connection with the surface of the transmission rod (1).
  6. 6. The external field testing device of the vertical axis wind turbine of claim 1, wherein a plurality of clamping grooves (206) are formed in the dumbbell disc (201), the clamping grooves are circumferentially and equidistantly arranged on the surface of the dumbbell disc (201), and friction pads are arranged on the surface of the clamping grooves (206).
  7. 7. The external field testing device for the vertical axis wind turbine of claim 1, wherein the lower end of the testing box (4) is fixedly connected with one end of a vertical rod (6), and the other end of the vertical rod (6) is fixedly arranged on the ground.

Description

Vertical axis wind turbine external field testing device Technical Field The invention relates to the technical field of wind power generation, in particular to a vertical axis wind turbine external field testing device. Background With the development of global economy, the demand for energy is growing, and the reserves of traditional fossil energy are limited and distributed unevenly. Wind power generation is used as a renewable energy source, can provide a new way for energy supply, lightens the dependence on traditional fossil energy and relieves the situation of energy shortage. The abundant wind energy resources are widely distributed, and the development of wind power generation can enable the energy sources of a country or region to be more diversified, reduce the supply interruption risk faced by relying on single energy or imported energy, and enhance the stability and safety of energy supply. At present, wind power generation is widely used as a transverse axis wind power generator and a vertical axis wind power generator, the vertical axis wind power generator can adapt to wind with different wind directions, a yaw system existing in the traditional transverse wind power generator is eliminated, the internal structure is simple, but due to the mechanism and the vertical axis wind power generator At the moment of the vigorous development of wind power generation technology, an important component of a wind energy capturing device is a wind power generator, and the wind power generator is divided into a vertical axis wind power generator and a horizontal axis wind power generator according to the direction of a rotating shaft. The horizontal axis wind power generator is developed rapidly due to various factors, the technology is mature, and the vertical axis wind power generator is far behind the horizontal axis wind power generator due to the theoretical complexity and efficiency and the self-starting problem. However, the vertical axis wind driven generator has the advantages of no need of a yawing device for wind and complexity, compact structure, low noise and the like, and is widely applied to the fields of distributed energy, micro-grids and special-terrain wind energy development. However, the performance optimization of the test device is highly dependent on accurate test data in an external field environment, the adaptability of the existing test device to the external complex environment is also insufficient, and the problem of low monitoring precision generally occurs. The testing method also uses the existing testing method of the horizontal axis wind driven generator, so that the air flow characteristics in the complex turbulent flow field are difficult to capture, and the requirements of the fine study on the aerodynamic performance cannot be met. Disclosure of Invention The invention aims to provide a vertical axis wind turbine external field testing device. To solve the problems set forth in the background art. In order to achieve the aim, the invention provides the technical scheme that the vertical axis wind turbine external field testing device comprises a transmission rod, The dumbbell disc is fixedly arranged on the transmission rod, T-shaped chucks are fixedly arranged on two sides of the dumbbell disc, a plurality of T-shaped grooves are formed in each T-shaped chuck in an array mode according to the circumference at equal intervals, the inner surfaces of the T-shaped grooves are in contact connection with the outer surfaces of T-shaped blocks at one end of the connecting rod, the middle surfaces of the connecting rod are in contact with the inner surfaces of clamping grooves at the edges of the dumbbell disc, and the other end of the connecting rod is hinged to one side surface of each fan blade; The rotary table is rotatably arranged on the transmission rod, one ends of a plurality of pushing rods are eccentrically hinged to the rotary table, a poking wheel in contact connection with the outer surface of the transmission rod and a fixed wheel in contact connection with the outer surface of the transmission rod are sequentially fixed on the upper surface of the rotary table along the extending direction of the transmission rod, the other ends of the pushing rods are hinged to a driven plate fixedly arranged on the fan blade, the connecting point of the pushing rods and the driven plate is close to one side of the driven plate, and the lower surface of the rotary table is in contact connection with the upper surface of a tray fixedly arranged on the transmission rod; the flange plate of the shaft center rod is fixedly arranged at the axle center of the transmission rod; the power generator, the rotating speed sensor and the torque sensor are fixedly arranged in the test box and fixedly connected with the axle center rod. Preferably, the T-shaped chuck is cylindrical, the upper surface of the T-shaped chuck is in contact connection with the cover plate, a screw hole is formed