Vertical axis wind turbine

Abstract

The utility model relates to the field of wind power generation, and discloses a vertical axis wind turbine which comprises a supporting seat, a mounting rod is rotatably connected to the upper portion of the supporting seat, a limiting ring is rotatably connected to the outer ring of the supporting seat, a rotating rod is fixedly installed at the top end of the mounting rod, and the rotating rod and the limiting ring are rotatably connected. Cloth-based blades which are annularly distributed at equal intervals are fixedly installed on the outer side of the installation rod, connecting rods are fixedly installed at the bottom end and the top end of the outer surface of the installation rod, the two connecting rods are fixedly connected through a mooring rope, multiple sets of sliding rods are slidably connected to the middle of the mooring rope, and the multiple sets of sliding rods and the connecting rods are fixedly connected through canvas. According to the vertical axis wind turbine, the mounting rod capable of rotating relative to the supporting base is arranged, the cloth-based blades made of light materials are arranged on the surface of the mounting rod and used for facing the wind, and therefore the self weight of the device can be reduced, breeze starting is facilitated, and meanwhile the winding mechanism is arranged so that the device can be prevented from stalling when wind power is too large.

Description

Technical Field

[0001] The utility model relates to the field of wind power generation, in particular to a vertical axis wind turbine. Background Art

[0002] A vertical axis wind turbine is a wind turbine with its rotor's axis of rotation perpendicular to the ground or the direction of the airflow. Since vertical axis wind turbines do not need to face the wind when the wind direction changes, this is a major advantage over horizontal axis wind turbines. It not only simplifies the structural design, but also reduces the gyroscopic force of the wind rotor facing the wind. Therefore, vertical axis wind turbines have very good development prospects. A vertical axis wind turbine is a wind turbine with its rotor's axis of rotation perpendicular to the ground or the direction of the airflow.

[0003] Vertical wind turbines are designed to start their blades at lower wind speeds, which requires the device to respond quickly. Therefore, at high wind speeds, vertical wind turbines are prone to stalling due to excessive rotation speed. The traditional solution is to cut off the connection between the rotating shaft and the power generation shaft when the wind force reaches a certain value, but this will cause wear on the blades during rotation. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a vertical axis wind turbine having the advantages of light weight and fast response speed, and solves the problem that the wind receiving area of ​​the vertical axis wind turbine cannot be adjusted and strong winds can easily cause the device to stall.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vertical axis wind turbine, comprising a support seat, a mounting rod rotatably connected to the top of the support seat, a limiting ring rotatably connected to the outer ring of the support seat, a rotating rod fixedly installed on the top of the mounting rod, the rotating rod and the limiting ring are rotatably connected, and cloth-based blades equidistantly distributed in an annular manner are fixedly installed on the outer side of the mounting rod.

[0008] In some embodiments, connecting rods are fixedly installed on the bottom and top ends of the outer surface of the mounting rod, the two connecting rods are fixedly connected by a cable, the middle part of the cable is slidably connected to multiple groups of sliding rods, and the multiple groups of sliding rods and the connecting rods are fixedly connected by canvas.

[0009] In some embodiments, a traction rope is fixedly installed on the top of the sliding rod described above, a reversing block is fixedly installed on the top of the upper connecting rod, a winding mechanism is arranged between the mounting rod and the rotating rod, and the traction rope passes around the reversing block and is connected to the winding mechanism.

[0010] In some embodiments, the winding mechanism includes a support sleeve, which is fixedly installed between the mounting rod and the rotating rod. A fixed frame is fixedly installed in the middle of the support sleeve, and a central shaft is rotatably connected to the middle of the fixed frame. A winding wheel is fixedly sleeved on the outer surface of the central shaft, and a traction rope is sleeved on the outer surface of the winding wheel. A worm gear is fixedly installed on the bottom end of the central shaft, and a worm is meshed at one end of the worm gear. A motor is connected to the rear end of the worm, and the motor is fixedly installed inside the support sleeve.

[0011] In some embodiments, a bearing is provided between the mounting rod and the support seat, a hemispherical head is provided at the bottom end of the mounting rod, and a groove adapted to the hemispherical head is provided at the inner end of the support seat.

[0012] In some embodiments, the cross-sectional shape of the sliding rod is a "J" shape, and the two connecting rods are arranged obliquely with the axis of the mounting rod.

[0013] In some embodiments, the adjacent reversing blocks are gradually lowered, and a through hole for the traction rope to pass through is opened on the surface of the supporting sleeve.

[0014] In some embodiments, there are multiple cables, and the cables are evenly spaced.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present invention provides a method having the following beneficial effects:

[0017] 1. The vertical axis wind turbine is provided with a mounting rod that can rotate relative to the support seat and a cloth-based blade made of a lighter material is provided on the surface of the mounting rod to face the wind, thereby reducing the weight of the device and facilitating starting with a breeze. At the same time, a reeling mechanism is provided to prevent the device from stalling when the wind is too strong.

[0018] 2. The vertical axis wind turbine has a traction rope fixedly installed on the top of the uppermost sliding rod, a reversing block fixedly installed on the top of the upper connecting rod, a winding mechanism is arranged between the mounting rod and the rotating rod, and the traction rope passes around the reversing block and is connected to the winding mechanism. Through such an arrangement, the unfolding area of ​​the canvas can be adjusted with fewer devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of a cloth-based blade of the utility model;

[0021] Figure 3 This is a schematic diagram of the connection of the support seat of the utility model;

[0022] Figure 4 It is a half-section schematic diagram of the winding mechanism of the utility model.

[0023] In the figure:

[0024] 1. Support seat; 2. Mounting rod; 3. Limiting ring; 4. Rotating rod; 5. Cloth base blade; 6. Connecting rod; 7. Cable; 8. Sliding rod; 9. Canvas; 10. Traction rope; 11. Reversing block; 12. Winding mechanism; 121. Support sleeve; 122. Fixed frame; 123. Center axis; 124. Winding wheel; 125. Worm gear; 126. Worm; 127. Motor; 13. Hemispherical head; 14. Groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0027] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] By providing a mounting rod 2 that can rotate relative to the support seat 1 and providing cloth-based blades made of lighter material on the surface of the mounting rod 2 to face the wind, the weight of the device can be reduced, making it easier to start with a breeze. At the same time, a winding mechanism 12 is provided to prevent the device from stalling when the wind is too strong.

[0029] In the related art, vertical wind turbines pursue the goal of starting blades even at lower wind speeds, which requires the device to respond quickly. Therefore, at high wind speeds, vertical wind turbines are prone to stalling due to excessive rotation speed. The traditional solution is to cut off the connection between the rotating shaft and the power generation shaft when the wind force reaches a certain value, but this will cause wear on the blades during rotation.

[0030] In order to solve the problems in the related technology to a certain extent, the embodiment of the present application provides a vertical axis wind turbine. When it is needed, it only needs to drive the worm gear through the operation of the motor, so as to drive the cloth-based blades to expand and retract, thereby reducing the weight and making it easier to start. At the same time, it can change the windward area when the wind speed is too high to avoid stalling of the device.

[0031] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0032] Combination Figure 1-Figure 4 The embodiment of the present application provides a vertical axis wind turbine, including a support base 1, a mounting rod 2 is rotatably connected to the top of the support base 1, a limiting ring 3 is rotatably connected to the outer ring of the support base 1, a rotating rod 4 is fixedly installed on the top of the mounting rod 2, the rotating rod 4 and the limiting ring 3 are rotatably connected, and cloth-based blades 5 distributed equidistantly in an annular manner are fixedly installed on the outer side of the mounting rod 2.

[0033] In some embodiments, connecting rods 6 are fixedly installed on the bottom and top ends of the outer surface of the mounting rod 2, the two connecting rods 6 are fixedly connected by a cable 7, and multiple groups of sliding rods 8 are slidably connected to the middle part of the cable 7, and the multiple groups of sliding rods 8 and the connecting rods 6 are fixedly connected by a canvas 9.

[0034] In some embodiments, a traction rope 10 is fixedly installed on the top of the uppermost sliding rod 8, a reversing block 11 is fixedly installed on the top of the upper connecting rod 6, a winding mechanism 12 is arranged between the mounting rod 2 and the rotating rod 4, and the traction rope 10 bypasses the reversing block 11 and is connected to the winding mechanism 12. Through such a setting, the unfolding area of ​​the canvas 9 can be adjusted with fewer devices.

[0035] In some embodiments, a traction rope 10 is fixedly installed at the bottom end of the lowest sliding rod 8, a return spring is arranged between the sliding rods 8, a reversing block 11 is fixedly installed at the top end of the lower connecting rod 6, a rewinding mechanism 12 is arranged in the middle of the mounting rod 2, and the traction rope 10 passes around the reversing block 11 and is connected to the rewinding mechanism 12. Such an arrangement can set the control part at a lower position to lower the center of gravity of the entire device and avoid shaking.

[0036] Specifically, the winding mechanism 12 includes a supporting sleeve 121, which is fixedly installed between the mounting rod 2 and the rotating rod 4. A fixing frame 122 is fixedly installed in the middle of the supporting sleeve 121. A central shaft 123 is rotatably connected to the middle of the fixing frame 122. A winding wheel 124 is fixedly sleeved on the outer surface of the central shaft 123. The traction rope 10 is sleeved on the outer surface of the winding wheel 124. A worm gear 125 is fixedly installed on the bottom end of the central shaft 123. A worm 126 is meshed at one end of the worm gear 125. A motor 127 is connected to the rear end of the worm 126. The motor 127 is fixedly installed inside the supporting sleeve 121. Such an arrangement can achieve a self-locking effect after winding.

[0037] In some embodiments, a bearing is arranged between the mounting rod 2 and the support seat 1, a hemispherical head 13 is arranged at the bottom end of the mounting rod 2, and a groove 14 adapted to the hemispherical head 13 is arranged at the inner end of the support seat 1. Such an arrangement can ensure the stability of the rotation of the mounting rod 2.

[0038] Specifically, the cross-sectional shape of the sliding rod 8 is a "J" shape, and the two connecting rods 6 and the axis of the mounting rod 2 are arranged obliquely, so that it can be more easily blown by the wind.

[0039] In some embodiments, adjacent reversing blocks 11 are gradually lowered, and a through hole 15 for the traction rope 10 to pass through is opened on the surface of the support sleeve 121. This arrangement makes it easy for the traction rope 10 to be wound around the outer surfaces of different winding wheels 124.

[0040] Specifically, there are multiple cables 7, and the cables 7 are evenly spaced. Such an arrangement can increase the strength.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0042] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0043] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical axis wind turbine, comprising a support base (1), characterized in that: The support seat (1) is rotatably connected to a mounting rod (2) above, the outer ring of the support seat (1) is rotatably connected to a limiting ring (3), a rotating rod (4) is fixedly mounted on the top of the mounting rod (2), the rotating rod (4) and the limiting ring (3) are rotatably connected, and cloth-based blades (5) equidistantly distributed in an annular pattern are fixedly mounted on the outer side of the mounting rod (2).

2. A vertical axis wind turbine according to claim 1, characterized in that: Connecting rods (6) are fixedly mounted on the bottom and top ends of the outer surfaces of the mounting rods (2); the two connecting rods (6) are fixedly connected via a cable (7); the middle of the cable (7) is slidably connected to a plurality of sliding rods (8); and the plurality of sliding rods (8) and the connecting rods (6) are fixedly connected via a canvas (9).

3. A vertical axis wind turbine according to claim 2, characterized in that: A traction rope (10) is fixedly mounted on the top of the sliding rod (8) at the top, a reversing block (11) is fixedly mounted on the top of the upper connecting rod (6), a reeling mechanism (12) is arranged between the mounting rod (2) and the rotating rod (4), and the traction rope (10) passes around the reversing block (11) and is connected to the reeling mechanism (12).

4. A vertical axis wind turbine according to claim 3, characterized in that: The winding mechanism (12) comprises a support sleeve (121), the support sleeve (121) being fixedly mounted between the mounting rod (2) and the rotating rod (4), a fixed frame (122) being fixedly mounted in the middle of the support sleeve (121), a central shaft (123) being rotatably connected in the middle of the fixed frame (122), a winding wheel (124) being fixedly sleeved on the outer surface of the central shaft (123), a traction rope (10) being sleeved on the outer surface of the winding wheel (124), a worm gear (125) being fixedly mounted on the bottom end of the central shaft (123), a worm (126) being meshed at one end of the worm gear (125), a motor (127) being connected at the rear end of the worm (126), and the motor (127) being fixedly mounted inside the support sleeve (121).

5. A vertical axis wind turbine according to claim 1, characterized in that: A bearing is provided between the mounting rod (2) and the support seat (1); a hemispherical head (13) is provided at the bottom end of the mounting rod (2); and a groove (14) adapted to the hemispherical head (13) is provided at the inner end of the support seat (1).

6. A vertical axis wind turbine according to claim 2, characterized in that: The cross-sectional shape of the sliding rod (8) is a "J" shape, and the axes of the two connecting rods (6) and the mounting rod (2) are arranged obliquely.

7. A vertical axis wind turbine according to claim 3, characterized in that: The adjacent reversing blocks (11) are gradually lowered, and a through hole (15) for the traction rope (10) to pass through is provided on the surface of the support sleeve (121).

8. A vertical axis wind turbine according to claim 2, characterized in that: There are multiple cables (7), and the multiple cables (7) are evenly spaced.

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