Piston wind turbine

Abstract

This invention discloses a piston-type wind turbine generator set, including a disc, a nacelle, a tower, a linear reciprocating mechanism, a gearbox, a generator, and a control cabinet. The nacelle is mounted on the tower. The linear reciprocating mechanism is located inside the nacelle and extends outwards, connecting to the disc. The linear reciprocating mechanism is connected to the input shaft of the gearbox, and the output shaft of the gearbox is connected to the generator. The generator is connected to the control cabinet. When the disc is subjected to the thrust of horizontal wind, it performs a reciprocating translational motion, driving the generator through the gearbox. This invention can reduce the rotational load on the plane perpendicular to the wind direction, reduce airflow, achieve higher aerodynamic efficiency, and improve power generation efficiency.

Description

Technical Field

[0001] This invention relates to wind turbines, specifically a piston-type wind turbine generator set. Background Technology

[0002] A wind turbine is a device that converts wind into electrical energy. Traditional axial-flow wind turbines mostly have three-bladed blades. They utilize natural wind energy to drive the blades to rotate, which in turn drives a generator to produce electricity. The wind energy captured is generally considered to be the change in kinetic energy of the air at the rotor surface. If the energy absorption efficiency reaches 100%, the wind speed drops to zero after passing through the rotor surface, but this would impede airflow and cause the equipment to stop operating. Furthermore, the output power of this type of wind turbine is related to the swept area of ​​the blades. Since the area of ​​the three blades accounts for a very small proportion of the total rotating circular area of ​​the impeller, its output power is relatively low, resulting in low power generation efficiency. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a piston-type wind turbine generator set, which uses the linear reciprocating motion of a disk to generate electricity instead of the existing power generation mode that generates electricity through the rotation of a three-bladed structure. This reduces the rotational load on the plane perpendicular to the wind direction of the disk, reduces airflow, increases aerodynamic efficiency, and improves power generation efficiency.

[0004] This invention is achieved through the following technical solution: a piston-type wind turbine generator set, comprising a disc, a nacelle, a tower, a linear reciprocating motion mechanism, a gearbox, a generator, and a control cabinet. The nacelle is mounted on the tower. The linear reciprocating motion mechanism is located inside the nacelle and extends out of the nacelle, connecting to the disc. The linear reciprocating motion mechanism is connected to the input shaft of the gearbox, and the output shaft of the gearbox is connected to the generator. The generator is connected to the control cabinet. When the disc is subjected to the thrust of a horizontal wind, the disc performs a reciprocating translational motion and drives the generator through the gearbox.

[0005] Furthermore, the linear reciprocating motion mechanism includes a guide rod, a linear translation limiting structure, a connecting rod, and a crank. One end of the guide rod is connected to the disk, and the other end of the guide rod is connected to the connecting rod. The connecting rod is connected to the input shaft of the gearbox through the crank. The linear translation limiting structure is distributed on both sides of the connecting rod, and the linear translation limiting structure is connected to the disk.

[0006] Furthermore, the linear translation limiting structure includes a linear track and a linear slide rod. The linear track is disposed inside the cabin, and the linear slide rod is slidably disposed on the linear track and connected to the disc.

[0007] Furthermore: a support plate is provided inside the cabin, and a through hole is opened in the middle of the support plate. The guide rod passes through the through hole and passes through the support plate. Symmetrical brake structures are provided on both sides of the through hole. The brake structures hold the guide rod tightly to brake the disc.

[0008] Furthermore: the brake clamping structure includes a brake clamping motor, a brake clamping screw, a brake clamping nut, and a brake clamping pad. The brake clamping motor is mounted on the support plate and connected to the brake clamping screw. The brake clamping nut is fitted onto the brake clamping screw, and the brake clamping pad is mounted on the brake clamping nut. The brake clamping motor is electrically connected to the control cabinet.

[0009] Furthermore: a spring is fitted onto the guide rod, with one end of the spring abutting against the disc and the other end of the spring abutting against the support plate.

[0010] Furthermore: the guide rod is provided with multiple locking holes, which are spaced apart along the length of the guide rod; the support plate is provided with a receiving hole, which communicates with the through hole; the support plate is provided with a locking structure, which includes a locking motor, a locking pin, a locking screw, and a locking nut; the locking motor is connected to the locking screw; the locking nut is fitted onto the locking screw; the locking pin is disposed on the locking nut and is located in the receiving hole; and the locking motor is electrically connected to the control cabinet.

[0011] Furthermore: the cross-section of the linear track is I-shaped, the linear slide rod is provided with a T-shaped through groove, the linear slide rod is sleeved on the linear track through the T-shaped through groove, and the linear slide rod and the linear track are lubricated by an oil film.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. By installing a linear reciprocating motion mechanism inside the nacelle, with the mechanism extending outside the nacelle and connected to a disc, and connecting the linear reciprocating motion mechanism to the input shaft of the gearbox, and the output shaft of the gearbox to the generator, when the thrust generated by the wind is perpendicular to the disc, the thrust drives the disc to drive the linear reciprocating motion mechanism to drive the gearbox to drive the generator to generate electricity. Through the linear reciprocating motion mechanism, the disc can maintain translational motion, realizing a power generation mode that uses the linear reciprocating translational motion of the disc to generate electricity, replacing the traditional power generation mode that uses the rotation of a three-bladed structure to generate electricity. That is, the traditional blade rotation is transformed into the piston motion of the disc, reducing the rotational load on the plane perpendicular to the wind direction, reducing airflow, increasing aerodynamic efficiency, and improving power generation efficiency.

[0014] 2. Connect one end of the guide rod to the disk and the other end of the guide rod to the connecting rod. The connecting rod is connected to the input shaft of the gearbox through a crank. A spring is fitted on the guide rod, with one end of the spring abutting against the disk and the other end abutting against the support plate. The spring can provide a restoring torque for the linear reciprocating motion of the disk, preventing the wind turbine from stopping. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0017] Figure 3 This is a structural exploded view of the present invention;

[0018] Figure 4 This is a schematic diagram of the internal structure of the cabin of the present invention;

[0019] Figure 5 This is a schematic diagram of the linear reciprocating motion mechanism of the present invention;

[0020] Figure 6 This is a cross-sectional view of the linear track and linear slide bar of the present invention.

[0021] Explanation of reference numerals in the attached drawings: 1-Disc, 2-Nacelle, 3-Tower, 4-Linear reciprocating motion mechanism, 5-Gearbox, 6-Generator, 7-Control cabinet, 8-Guide rod, 9-Linear translational limiting structure, 10-Connecting rod, 11-Crank, 12-Linear track, 13-Linear slide bar, 14-Support plate, 15-Through hole, 16-Brake structure, 17-Brake motor, 18-Brake pad, 19-Spring, 20-Locking hole, 21-Accommodation hole, 22-Locking motor, 23-T-slot. Detailed Implementation

[0022] Figures 1 to 6 The schematic diagram of an embodiment of a piston-type wind turbine generator provided by the present invention includes a disc 1, a nacelle 2, a tower 3, a linear reciprocating motion mechanism 4, a gearbox 5, a generator 6, and a control cabinet 7. The nacelle 2 is mounted on the tower 3. The linear reciprocating motion mechanism 4 is mounted inside the nacelle 2 and extends out of the nacelle 2 and is connected to the disc 1. The linear reciprocating motion mechanism 4 is connected to the input shaft of the gearbox 5. The output shaft of the gearbox 5 is connected to the generator 6. The generator 6 is connected to the control cabinet 7. When the disc 1 is subjected to the thrust of the horizontal wind, the disc 1 performs a reciprocating translational motion and drives the generator 6 through the gearbox 5.

[0023] The linear reciprocating motion mechanism 4 includes a guide rod 8, a linear translation limiting structure 9, a connecting rod 10, and a crank 11. One end of the guide rod 8 is connected to the disk 1, and the other end of the guide rod 8 is connected to the connecting rod 10. The connecting rod 10 is connected to the input shaft of the gearbox 5 through the crank 11. The linear translation limiting structures 9 are distributed on both sides of the connecting rod 10, and the linear translation limiting structures 9 are connected to the disk 1.

[0024] The linear translation limiting structure 9 includes a linear track 12 and a linear slide rod 13. The linear track 12 is installed inside the cabin 2, and the linear slide rod 13 is slidably installed on the linear track 12 and connected to the disk 1.

[0025] The thrust F generated by the wind is perpendicular to disk 1 (e.g.) Figure 5 As shown, the thrust F drives the disk 1 to move the guide rod 8 towards the gearbox 5, which in turn drives the connecting rod 10 to rotate the gearbox 5 via the crank 11. The gearbox 5 drives the generator 6 to generate electricity. While the disk 1 drives the guide rod 8 to move, the disk 1 drives the linear slide rod 13 to slide along the linear slide rail. Through the cooperation of the linear slide rod 13 and the linear slide rail, the freedom of movement of the disk 1 can be restricted, so that the disk 1 and the guide rod 8 can perform reciprocating linear translational motion. The power generation mode that uses the reciprocating linear translational motion of the disk to generate electricity replaces the traditional power generation mode that uses the rotation of the three-lobe structure to generate electricity, thus improving the power generation efficiency.

[0026] Disk 1 is primarily driven by the thrust F of the horizontal wind, the magnitude of which is:

[0027]

[0028] Where C is the shape factor, which is generally taken as 1.0 for large planes; ρ The density of air is generally taken as 1.29 kg / m³. v The speed is relative; wind speed is used here. R Let be the radius of disk 1.

[0029] A support plate 14 is provided inside the cabin 2. A through hole 15 is provided in the middle of the support plate 14. The guide rod 8 passes through the through hole 15 and passes through the support plate 14. Symmetrical brake structures 16 are provided on both sides of the through hole 15. The brake structures 16 hold the guide rod 8 tightly to brake the disc 1.

[0030] The brake holding structure 16 includes a brake holding motor 17, a brake holding screw, a brake holding nut, and a brake holding pad 18. The brake holding motor 17 is mounted on the support plate 14 and is connected to the brake holding screw. The brake holding nut is fitted onto the brake holding screw, and the brake holding pad 18 is mounted on the brake holding nut. The brake holding motor 17 is electrically connected to the control cabinet 7.

[0031] When the control cabinet 7 issues a brake command, it controls the brake motor 17 to drive the brake screw to rotate. The brake screw drives the brake nut to move the brake pad 18 closer to the guide rod 8, and makes the brake pad 18 clamp onto the outer wall of the guide rod 8. Thus, the brake pad 18 is used to clamp and brake the guide rod 8, thereby braking the disc 1.

[0032] A spring 19 is mounted on the guide rod 8, with one end of the spring 19 abutting against the disc 1 and the other end of the spring 19 abutting against the support plate 14.

[0033] Spring 19 provides a restoring torque for linear reciprocating motion to disk 1 and enhances the stiffness of generator set 6.

[0034] The guide rod 8 is provided with multiple locking holes 20, which are spaced apart along the length of the guide rod 8. The support plate 14 is provided with a receiving hole 21, which is connected to the through hole 15. The support plate 14 is provided with a locking structure, which includes a locking motor 22, a locking pin, a locking screw, and a locking nut. The locking motor 22 is connected to the locking screw, the locking nut is fitted on the locking screw, the locking pin is set on the locking nut and is located in the receiving hole 21, and the locking motor 22 is electrically connected to the control cabinet 7.

[0035] When the translation speed of the disc 1 is slow, the control cabinet 7 controls the locking motor 22 to drive the locking screw to rotate. The locking screw drives the locking nut to drive the locking pin through the receiving hole 21 to the through hole 15 and insert it into the locking hole 20 of the guide rod 8 to complete the braking.

[0036] The linear track 12 has an I-shaped cross section, and the linear slide rod 13 is provided with a T-shaped through groove 23. The linear slide rod 13 is fitted onto the linear track 12 through the T-shaped through groove 23, and the linear slide rod 13 and the linear track 12 are lubricated by an oil film.

[0037] The linear slide rod 13 is fitted onto the linear slide rail with an I-shaped cross-section through the T-slot 23, which can improve the stability of the linear slide rod 13 movement. The linear slide rod 13 and the linear slide rail are lubricated with an oil film, which can improve the smoothness of the linear slide rod 13 movement.

[0038] The above detailed description is a specific description of feasible embodiments of the present invention. These embodiments are not intended to limit the patent scope of the present invention. All equivalent implementations or modifications that do not depart from the present invention should be included in the patent scope of this case.

Claims

1. A wind turbine generator system of the piston type, characterized by: The utility model relates to a wind turbine, including disc, cabin, tower drum, linear reciprocating mechanism, gear box, generator, control cabinet, the cabin sets up on the tower drum, the linear reciprocating mechanism sets up in the cabin and stretches out the cabin outside and the disc connection, the linear reciprocating mechanism and the input shaft of gear box are connected, the output shaft of gear box and generator are connected, the generator and control cabinet are connected, when the disc is pushed by horizontal plane wind, the disc does reciprocating translation and drives generator through gear box, The linear reciprocating mechanism includes guide rod, linear translation limiting structure, connecting rod, crank, one end of guide rod is connected with disc, the other end of guide rod is connected with connecting rod, connecting rod is connected with input shaft of gear box through crank, linear translation limiting structure is distributed on both sides of connecting rod, and linear translation limiting structure is connected with disc, The linear translation limiting structure includes linear rail and linear slide rod, linear rail is arranged in cabin, linear slide rod is slidably arranged on linear rail, and linear slide rod is connected with disc, Supporting plate is arranged in cabin, through hole is formed in middle part of supporting plate, guide rod penetrates through supporting plate through through hole, brake structure is arranged on both sides of through hole, brake structure is used for braking guide rod to brake disc, Spring is sleeved on guide rod, one end of spring abuts against disc, the other end of spring abuts against supporting plate, A plurality of locking holes are arranged on guide rod, locking holes are spaced apart along length direction of guide rod, accommodating hole is arranged on supporting plate, accommodating hole is communicated with through hole, locking structure is arranged on supporting plate, locking structure includes locking motor, locking pin, locking screw rod and locking nut, locking motor is connected with locking screw rod, locking nut is sleeved on locking screw rod, locking pin is arranged on locking nut and located in accommodating hole, locking motor is electrically connected with control cabinet.

2. A wind turbine generator system according to claim 1, wherein: The brake structure includes brake motor, brake screw rod, brake nut and brake piece, brake motor is arranged on supporting plate, brake motor is connected with brake screw rod, brake nut is sleeved on brake screw rod, brake piece is arranged on brake nut, brake motor is electrically connected with control cabinet.

3. A wind turbine generator system according to claim 2, wherein: Cross section of linear rail is in the shape of H, T-shaped through slot is arranged on linear slide rod, linear slide rod is sleeved on linear rail through T-shaped through slot, and oil film lubrication is adopted between linear slide rod and linear rail.

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