A speed reduction device for a vertical axis wind turbine

Abstract

A reduction gear device for a vertical axis wind turbine relates to the technical field of wind power generation equipment. A blade connecting rod and a motor rotor connecting rod are rotatably connected on the upper and lower sides of a shell, and the blade connecting rod and the motor rotor connecting rod are respectively provided with an installation groove and an insertion groove, a transmission mechanism is installed in the installation groove, and the driving end of the transmission mechanism is connected to the insertion groove, and a reduction gear device is installed in the shell. The reduction gear device for a vertical axis wind turbine described in the utility model connects the blade connecting rod and the motor rotor connecting rod together through a transmission mechanism, and directly drives the motor rotor connecting rod to rotate through the blade connecting rod. When the rotation speed of the blade connecting rod is too fast, the power of the blade connecting rod is transmitted to the reduction gear device through the transmission mechanism, the power is slowed down by the reduction gear mechanism, and the slowed power is transmitted to the motor rotor connecting rod to prevent the rotation speed from exceeding the bearing capacity of the wind turbine.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation equipment, in particular to a speed reduction device for a vertical axis wind power generator. Background Art

[0002] When a vertical axis wind power station generates electricity by natural wind, the rotation of the fan blades is entirely driven by the natural wind. The speed of the fan blades is related to the strength of the natural wind. When the natural wind is strong, the fan blades will rotate too fast. When the fan blades rotate too fast, it will drive the rotor of the wind turbine to rotate too fast. When the speed exceeds the bearing capacity of the wind turbine, it will cause damage to components in the wind power station. Utility Model Content

[0003] In order to overcome the deficiencies in the background technology, the utility model discloses a reduction gear device for a vertical axis wind turbine. The utility model connects a blade connecting rod and a motor rotor connecting rod together through a transmission mechanism, and directly drives the motor rotor connecting rod to rotate through the blade connecting rod. When the rotation speed of the blade connecting rod is too fast, the power of the blade connecting rod is transmitted to the reduction gear mechanism through the transmission mechanism, and the power is slowed down by the reduction gear mechanism, and the slowed power is transmitted to the motor rotor connecting rod to prevent the rotation speed from exceeding the bearing capacity of the wind turbine.

[0004] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0005] A reduction gear device for a vertical axis wind turbine comprises a shell, wherein the upper and lower sides of the shell are rotatably connected with a blade connecting rod and a motor rotor connecting rod respectively, and the blade connecting rod and the motor rotor connecting rod are respectively provided with an installation groove and an insertion groove, a transmission mechanism is installed in the installation groove, and the driving end of the transmission mechanism is connected to the insertion groove, a reduction gear mechanism is installed in the shell, and the reduction gear mechanism is connected to the transmission mechanism, and connecting plates are fixedly connected to the two sides of the shell respectively.

[0006] The installation groove consists of a sliding groove and sliding grooves arranged at equal distances, and the sliding grooves are connected to each other.

[0007] The transmission mechanism includes a rotating rod, a sliding rod, a U-shaped frame, a first gear, an electric telescopic rod, a positioning plate, a second gear and an insertion block, one end of the rotating rod is located in the sliding groove and is slidably connected, and the outer wall of the rotating rod is fixedly connected with equidistantly arranged sliding rods, the sliding rod is located in the sliding groove and is slidably connected, the other end of the rotating rod is fixedly connected with an insertion block, and the insertion block is located in the insertion groove and is slidably connected, the first gear is fixedly connected to one end of the rotating rod close to the insertion block, and two U-shaped frames are slidably connected to the first gear, two electric telescopic rods are fixedly connected to the lower side of the U-shaped frame, and the bottom end of the electric telescopic rod is fixedly connected with a positioning plate, the positioning plate is located on the shell and is fixedly connected, the second gear is located on the motor rotor connecting rod and is fixedly connected, and the second gear and the first gear are both meshed with the reduction mechanism.

[0008] The diameter of the second gear is greater than the diameter of the first gear.

[0009] The speed reduction mechanism includes a rotating rod, a third gear and a fourth gear. The rotating rod is located in the housing and is rotatably connected, and the third gear and the fourth gear are fixedly connected to the rotating rod. The third gear and the fourth gear are respectively meshed with the first gear and the second gear.

[0010] The diameter of the third gear is greater than the diameter of the fourth gear.

[0011] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0012] The utility model discloses a speed reduction device for a vertical axis wind turbine, which connects a blade connecting rod and a motor rotor connecting rod together through a transmission mechanism, and directly drives the motor rotor connecting rod to rotate through the blade connecting rod. When the rotation speed of the blade connecting rod is too fast, the power of the blade connecting rod is transmitted to the speed reduction mechanism through the transmission mechanism, and the power is slowed down by the speed reduction mechanism, and the slowed power is transmitted to the motor rotor connecting rod, so as to prevent the rotation speed from exceeding the bearing capacity of the wind turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 It is a cross-sectional side view of the utility model;

[0016] Figure 4 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0017] 1. Shell; 2. Motor rotor connecting rod; 3. Fan blade connecting rod; 4. Connecting plate; 5. Transmission mechanism; 501. Rotating rod; 502. Sliding rod; 503. U-shaped frame; 504. First gear; 505. Electric telescopic rod; 506. Positioning plate; 507. Second gear; 508. Insert block; 6. Speed ​​reduction mechanism; 601. Rotating rod; 602. Third gear; 603. Fourth gear. DETAILED DESCRIPTION

[0018] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0019] Combined with Figures 1 to 4 The deceleration device for a vertical axis wind turbine comprises a shell 1, wherein the upper and lower sides of the shell 1 are rotatably connected with a blade connecting rod 3 and a motor rotor connecting rod 2, respectively, the blade connecting rod 3 and the motor rotor connecting rod 2 are respectively connected with the blades and the rotor of the wind turbine, and the blade connecting rod 3 and the motor rotor connecting rod 2 are respectively provided with an installation groove and an insertion groove, a transmission mechanism 5 is installed in the installation groove, and the driving end of the transmission mechanism 5 is connected with the insertion groove, a deceleration mechanism 6 is installed in the shell 1, and the deceleration mechanism 6 is connected with the transmission mechanism 5, all electrical equipment used in the deceleration device for the vertical axis wind turbine are connected with the control equipment in the wind power station, and all electrical equipment used in the deceleration device for the vertical axis wind turbine are controlled by the control equipment in the wind power station to work, and connecting plates 4 are respectively fixedly connected to the two sides of the shell 1, and the deceleration device for the vertical axis wind turbine is fixed in the wind power station through the connecting plates 4.

[0020] The installation groove consists of a sliding groove and sliding grooves arranged at equal distances, and the sliding grooves are connected to each other.

[0021] The transmission mechanism 5 includes a rotating rod 501, a sliding rod 502, a U-shaped frame 503, a first gear 504, an electric telescopic rod 505, a positioning plate 506, a second gear 507 and an insertion block 508. One end of the rotating rod 501 is located in the sliding groove and is slidably connected, and the sliding rods 502 arranged equidistantly are fixedly connected to the outer wall of the rotating rod 501. The sliding rods 502 are located in the sliding groove and are slidably connected. The other end of the rotating rod 501 is fixedly connected to the insertion block 508, and the insertion block 508 is located in the insertion groove and is slidably connected. A first gear 504 is fixedly connected to one end of the rotating rod 501 close to the insertion block 508, and two U-shaped frames 503 are slidably connected to the first gear 504, two electric telescopic rods 505 are fixedly connected to the lower side of the U-shaped frame 503, and a positioning plate 506 is fixedly connected to the bottom end of the electric telescopic rod 505, and the positioning plate 506 is located on the shell 1 and fixedly connected, the second gear 507 is located on the motor rotor connecting rod 2 and fixedly connected, and the second gear 507 and the first gear 504 are both meshed and connected with the reduction mechanism 6.

[0022] The diameter of the second gear 507 is greater than the diameter of the first gear 504 .

[0023] The speed reduction mechanism 6 includes a rotating rod 601, a third gear 602 and a fourth gear 603. The rotating rod 601 is located in the housing 1 and is rotatably connected, and the third gear 602 and the fourth gear 603 are fixedly connected to the rotating rod 601. The third gear 602 and the fourth gear 603 are respectively meshed and connected with the first gear 504 and the second gear 507, which is similar to the principle of a speed reducer.

[0024] The diameter of the third gear 602 is greater than the diameter of the fourth gear 603 . The diameter of the third gear 602 is greater than the diameter of the first gear 504 . The diameter of the fourth gear 603 is greater than the diameter of the second gear 507 .

[0025] The deceleration device for a vertical axis wind turbine described above, when in use, the fan blade connecting rod 3 transmits power to the motor rotor connecting rod 2 through the rotating rod 501 during the rotation process, and the rotor of the wind turbine is driven to rotate through the motor rotor connecting rod 2 to generate electricity. When the natural wind force is strong, the U-shaped frame 503 is driven to move upward through the electric telescopic rod 505, and the U-shaped frame 503 drives the rotating rod 501 to move through the first gear 504, so that the insertion block 508 on the rotating rod 501 is separated from the motor rotor connecting rod 2. When the movable rod 501 moves upward, the first gear 504 on the rotating rod 501 meshes with the third gear 602 during the upward movement, and the power of the blade connecting rod 3 is transmitted to the third gear 602 through the first gear 504. The third gear 602 drives the fourth gear 603 to rotate through the rotating rod 601. The rotation speed is slowed down during the rotation process, and the power is transmitted to the motor rotor connecting rod 2 fixed with the second gear 507 through the fourth gear 603, so as to prevent the wind turbine rotor from rotating too fast and exceeding the bearing capacity of the wind turbine.

[0026] The parts of the present invention that are not described in detail are prior art. Although the present invention is specifically demonstrated and introduced in conjunction with the preferred implementation scheme, there are many methods and ways to implement the technical solution. The above is only a preferred implementation scheme of the present invention. However, technical personnel in the relevant field should understand that various changes can be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined in the attached claims, which are all within the scope of protection of the present invention.

Claims

1. A speed reduction device for a vertical axis wind turbine, comprising a housing (1), characterized in that: The upper and lower sides of the housing (1) are rotatably connected to a fan blade connecting rod (3) and a motor rotor connecting rod (2), and the fan blade connecting rod (3) and the motor rotor connecting rod (2) are respectively provided with a mounting groove and an insertion groove, a transmission mechanism (5) is installed in the mounting groove, and the driving end of the transmission mechanism (5) is connected to the insertion groove, a reduction mechanism (6) is installed in the housing (1), and the reduction mechanism (6) is connected to the transmission mechanism (5), and connecting plates (4) are fixedly connected to the two sides of the housing (1); The installation groove is composed of a sliding groove and sliding grooves arranged at equal distances, and the sliding grooves are connected to each other; The transmission mechanism (5) comprises a rotating rod (501), a sliding rod (502), a U-shaped frame (503), a first gear (504), an electric telescopic rod (505), a positioning plate (506), a second gear (507) and an insertion block (508); one end of the rotating rod (501) is located in the sliding groove and is slidably connected, and the sliding rods (502) arranged at equal distances are fixedly connected to the outer wall of the rotating rod (501); the sliding rods (502) are located in the sliding groove and are slidably connected; the other end of the rotating rod (501) is fixedly connected to the insertion block (508); the insertion block (508) is located in the insertion groove and is slidably connected, A first gear (504) is fixedly connected to one end of the rotating rod (501) close to the insertion block (508), and two U-shaped frames (503) are slidably connected to the first gear (504); two electric telescopic rods (505) are fixedly connected to the lower side of the U-shaped frame (503), and a positioning plate (506) is fixedly connected to the bottom end of the electric telescopic rod (505); the positioning plate (506) is located on the housing (1) and fixedly connected; the second gear (507) is located on the motor rotor connecting rod (2) and fixedly connected; and the second gear (507) and the first gear (504) are both meshedly connected to the speed reduction mechanism (6); The diameter of the second gear (507) is greater than the diameter of the first gear (504); The speed reduction mechanism (6) comprises a rotating rod (601), a third gear (602) and a fourth gear (603); the rotating rod (601) is located in the housing (1) and is rotatably connected thereto; the third gear (602) and the fourth gear (603) are fixedly connected to the rotating rod (601); the third gear (602) and the fourth gear (603) are respectively meshed with the first gear (504) and the second gear (507).

2. The speed reducer for a vertical axis wind turbine according to claim 1, characterized in that: The diameter of the third gear (602) is greater than the diameter of the fourth gear (603).

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