CN202579030U

CN202579030U - Auxiliary starting device for perpendicular shaft wind turbine

Info

Publication number: CN202579030U
Application number: CN 201220210210
Authority: CN
Inventors: 刘竹青; 郭朝瑜; 王福军; 肖若富
Original assignee: China Agricultural University
Current assignee: China Agricultural University
Priority date: 2012-05-10
Filing date: 2012-05-10
Publication date: 2012-12-05
Anticipated expiration: 2022-05-10

Abstract

The utility model relates to the field of perpendicular shaft wind turbines, and discloses an auxiliary starting device for a perpendicular shaft wind turbine. The auxiliary starting device comprises a framework (2), canvases (5) and canvas fixing rods (6), wherein the canvases (5) are arranged on the framework (2) through the canvas fixing rods (6). Due to the wind holding performance of the canvases, when wind enters an inwards concave surface and a convex surface of the auxiliary starting device to produce pressure difference; at relatively low wind speed, relatively large torque to a wind turbine shaft can be produced, so that a torque increase effect is achieved; therefore, the perpendicular shaft wind turbine can be started, and an aim of improving the starting property of the perpendicular shaft wind turbine is fulfilled; and the starting property is improved, and the influence on the utilization rate of wind energy is small. Furthermore, a bracket with a shape like a triangular prism serves as a framework; the strength and the stability are extremely high; the auxiliary starting device is difficult to damage; when a certain canvas is broken, the broken canvas is disassembled and replaced; therefore, the auxiliary starting device is convenient to maintain; the canvases are extremely light in weight; and the cost is very low.

Description

The auxiliary actuating apparatus that is used for vertical axis windmill

Technical field

The utility model relates to the vertical axis windmill field, is specifically related to a kind of auxiliary actuating apparatus that is used for vertical axis windmill.

Background technique

The startability of H type vertical axis windmill is relatively poor.S type wind wheel directly be installed on the wind energy conversion system main shaft improved its startability for the problem that solves lift vertical shaft wind energy conversion system startability difference often is employed in the existing technology, perhaps as publication number be that employing on crossbeam that the one Chinese patent application document of CN201865838U the proposes mode that is connected is installed an arc shaped blade and improved startability.Yet the arc shaped blade processing difficulties has increased manufacture cost to a great extent; And having increased the weight of wind energy conversion system, startability has reduced wind energy utilization again when improving, in addition; Because wind speed is periodically conversion, when big wind speed, do not need auxiliary actuating apparatus, the auxiliary device dismounting that therefore is fixedly connected mode is inconvenient; And arc shaped blade needs integral body to change again when damaging, and cost can improve.

The model utility content

The technical problem that (one) will solve

The technical problem that the utility model will solve is: the startability that how to improve vertical axis windmill.

(2) technological scheme

In order to solve the problems of the technologies described above, the utility model provides a kind of auxiliary actuating apparatus that is used for vertical axis windmill, comprises skeleton, canvas and canvas fixing rod, and said canvas is installed on the said skeleton through the canvas fixing rod.

Preferably, said skeleton profile is a tri-prism, and said skeleton comprises the incline of said tri-prism, and uniformly-spaced is fixed on a plurality of triangle frames on the incline, and plane, said a plurality of triangle frames place is parallel to each other.

Preferably, be equipped with tapped hole on said skeleton, canvas and the canvas fixing rod.

Preferably, said canvas, canvas fixing rod and skeleton are fixed together through screw bolt and nut.

Preferably, said vertical axis windmill is a H type vertical axis windmill.

(3) beneficial effect

The utility model makes full use of the performance of going for a drive of canvas; Wind gets into the auxiliary actuating apparatus inner concave and convex surface produces pressure reduction; Under less wind speed, can produce the moment of torsion bigger, play the effect that increases square, thereby start vertical axis windmill the wind-force arbor; Reach the purpose of the startability that improves vertical axis windmill, little to the influence of wind energy utilization when improving startability.And because the support that adopts the tri-prism profile is as skeleton, intensity and stability are very high, and is not fragile, and when canvas had breakage, only need pulled down replacing with it, so convenience for device maintenance, and, the very light in weight of canvas, cost is very low.

Description of drawings

Fig. 1 is the structural representation after the utility model embodiment is installed on three blade H type vertical axis windmills;

Fig. 2 is installed on strut plan view afterwards for the utility model embodiment;

Fig. 3 is installed on strut plan view afterwards for the utility model embodiment;

Fig. 4 is an A-A phantom among Fig. 3;

Fig. 5 is the enlarged view of B part among Fig. 4;

Fig. 6 is the schematic representation of the utility model embodiment under the wind effect.

Wherein, 1: pneumatic equipment blades made; 2: skeleton; 3: strut; 4: the wind-force arbor; 5: canvas; 6: the canvas fixing rod; 7,8,10,11,12,13: tapped hole; 9: the triangle stiffening rib.

Embodiment

Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention is done further explain.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.

Like Fig. 1～shown in Figure 4, the utility model embodiment provides a kind of auxiliary actuating apparatus of the H of being used for type vertical axis windmill, and it comprises skeleton 2, canvas 5 and canvas fixing rod 6.The profile of skeleton 2 is a tri-prism, and said skeleton comprises the incline of said tri-prism, and uniformly-spaced is fixed on a plurality of triangle frames on the incline, and plane, said a plurality of triangle frames place is parallel to each other.

The utility model embodiment's concrete mounting type can be with reference to shown in Figure 5; Canvas 5 is layered on the skeleton 2, canvas fixing rod 6 is pressed on the canvas 5, bolt is passed the tapped hole of skeleton 2, canvas 5 and canvas fixing rod 6; Use nut screwing clamping again; Just canvas 5 has been fixed on the skeleton 2, again the utility model has been installed on the upper and lower strut 3 of H type vertical axis windmill, along number N >=1 of the said auxiliary actuating apparatus of strut 3 directions.With screw pneumatic equipment blades made 1 is fixed on the strut 3 when installing, a triangle stiffening rib 9 is respectively installed in both sides, increases its connection reliability again.

Said pneumatic equipment blades made 1 is installed on the strut 3, and in a circumferential direction along same towards.

With reference to figure 6, can find out that the utility model makes full use of the performance of going for a drive of canvas; Wind gets into the auxiliary actuating apparatus inner concave and convex surface produces pressure reduction; Under less wind speed, can produce the moment of torsion bigger, play the effect that increases square, thereby start H type vertical axis windmill the wind-force arbor; Reach the purpose of the startability that improves H type vertical axis windmill, little to the influence of wind energy utilization when improving startability.And owing to adopt the skeleton of tri-prism profile, intensity and stability are very high, and is not fragile, when canvas has breakage, only need it is pulled down replacing, so convenience for device maintenance, and, the very light in weight of canvas, cost is very low.The utility model dismounting is very convenient, is in the abundant time period of wind energy can pull down the minimizing wind energy utilization of trying one's best little very easily in the wind energy conversion system location.

The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and replacement, these improvement and replacement also should be regarded as protection scope of the present invention.

Claims

1. an auxiliary actuating apparatus that is used for vertical axis windmill is characterized in that, comprises skeleton (2), canvas (5) and canvas fixing rod (6), and said canvas (5) is installed on the said skeleton (2) through canvas fixing rod (6).

2. device as claimed in claim 1; It is characterized in that; Said skeleton (2) profile is a tri-prism, and said skeleton (2) comprises the incline of said tri-prism and uniformly-spaced be fixed on a plurality of triangle frames on the incline that plane, said a plurality of triangle frames place is parallel to each other.

3. device as claimed in claim 1 is characterized in that, is equipped with tapped hole on said skeleton (2), canvas (5) and the canvas fixing rod (6).

4. device as claimed in claim 3 is characterized in that, said canvas (5), canvas fixing rod (6) and skeleton (2) are fixed together through screw bolt and nut.

5. like each described device in the claim 1～4, it is characterized in that said vertical axis windmill is a H type vertical axis windmill.