CN103388557A

CN103388557A - Vertical axis wind power generation device capable of automatically adjusting attack angle

Info

Publication number: CN103388557A
Application number: CN201210145815XA
Authority: CN
Inventors: 许志龙; 周树温; 黄种明; 王毅伟
Original assignee: Xiamen Ristar Electromechanical Science & Technology Co Ltd
Current assignee: Xiamen Ristar Electromechanical Science & Technology Co Ltd
Priority date: 2012-05-12
Filing date: 2012-05-12
Publication date: 2013-11-13

Abstract

The invention provides a vertical axis wind power generation device capable of automatically adjusting an attack angle, consisting of blades, an upper blade fixing plate, a lower blade fixing plate, an output shaft, a rectangular bulge block, a cam, a cam drive assembly and a base, wherein a rotating shaft is arranged on each blade; the blades are hinged between the upper blade fixing plate and the lower blade fixing plate through the rotating shafts; the upper blade fixing plate is in rigid connection with the output shaft; the lower blade fixing plate is hinged to the base through a bearing; the rectangular bulge block is fixed on the rotating shafts of the blades and is in contact with the outer contour of the cam; two inward arcs which are used for changing the directions of the blades are arranged on the outer contour of the cam; the cam drive assembly is arranged under the cam and is fixed on the base; the whole set of device is fixed on a carrier through the base. Compared with the existing wind turbine adopting fixed blade rotating angles, the device has the advantages that the starting wind speed of a vertical axis wind power generator can be effectively reduced, the wind energy utilization rate is improved, the structure is simple, the cost is low, and very good social meaning is realized for popularizing wind energy utilization.

Description

A kind of wind power generating set with vertical shaft that can automatically regulate the angle of attack

Technical field

The present invention relates to a kind of wind power generating set with vertical shaft that can automatically regulate the angle of attack, refer to specifically for wind-power electricity generation, can, according to the device of blow direction adjusting blades angle, belong to vertical axis wind energy generation technology development field.

Background technique

Wind-driven generator is a kind of energy conversion device that wind energy is converted to mechanical energy, electric energy or heat energy.For a long time, people have designed the wind generating unit of various ways for good utilisation wind energy more, difference according to wind driven generator rotation shaft space direction position can be divided into horizontal axis wind-driven generator and vertical axis aerogenerator, and vertical axis aerogenerator can be divided into again resistance type and lift-type two classes.The wind wheel of general vertical axis aerogenerator adopts lift-type, and blade shape is complicated, and manufacture cost is high, and the axis of blade is parallel with vertical shaft, and the rotating speed of wind wheel and wind direction are irrelevant, does not therefore need to adopt as horizontal-shaft wind turbine wind plant.Because the angle of blade and cantilever support immobilizes, therefore, the size of the driving moment that blade produces and wind direction are constantly to change, also can produce larger resisting moment simultaneously, the defect such as cause the startup wind speed of existing vertical axis aerogenerator large, wind energy utilization is not high and environmental suitability is not strong.

Summary of the invention

The object of the present invention is to provide a kind of wind power generating set with vertical shaft that can automatically regulate the angle of attack, it effectively reduces the startup wind speed of vertical axis aerogenerator and improves wind energy utilization by the adjusting vane angle of attack, has effectively avoided conventional vertical axis aerogenerator to start wind speed greatly and the low defect of wind energy utilization.

For achieving the above object, technical solution of the present invention is:

The present invention is a kind of wind power generating set with vertical shaft that can automatically regulate the angle of attack, and this device effectively reduces the startup wind speed of vertical axis aerogenerator and improves wind energy utilization by the adjusting vane angle of attack; This device is comprised of blade, blade upper mounted plate, blade bottom plate, output shaft, rectangle projection, cam, actuated by cams assembly and base; Blade is provided with rotating shaft, by rotating shaft, blade is articulated between blade upper mounted plate and blade bottom plate; Blade upper mounted plate and output shaft are rigidly connected; Blade bottom plate and base pass through bearing hinge connection; The rectangle projection is fixed in blade rotor and with the external frame of cam, contacts; The actuated by cams assembly is located at the cam below, and is fixed in base; Package unit is fixed on carrier by base.

Described rectangle projection and blade rotor bottom are fixed, and its side is tangent with the evagination circular arc of cam all the time.

Described cam external frame mainly is comprised of four arcs, wherein two sections is concentric evagination circular arc, connects by concave circular arc in two sections between this two circular arc, can walk around the dead point, right angle and carry out 90 ° of rotations when the rectangle projection rolls across interior concave circular arc, thereby the adjusting vane direction, improve generating efficiency.

Described actuated by cams assembly is provided with wind transducer, motor and gear drive; Wind transducer receives the change of the wind signal, and the change of the wind signal is reached motor, makes electric machine rotation, and the running of motor driven gear driving mechanism finally realizes the cam position adjusting.

Described base is a hollow arbor braid flange arrangement, and its endoporus is hinged by bearing and output shaft, and outer axial face is hinged with blade bottom plate and cam respectively by bearing, and last package unit is connected and fixed by flange mounting hole and carrier.

After adopting such scheme, the present invention has the following advantages:

(1) utilize two interior concave circular arcs on cam to realize the transformation of rectangle projection direction, thereby the direction blade fixing with the rectangle projection changed, simple and reliable for structure, effectively reduce and start wind speed and improve wind energy utilization;

(2) control motor according to wind transducer and drive, then by gear drive band moving cam, rotate, the adjustment cam position, make the generator output shaft be in all the time the state that can produce Maximum Torque and rotating speed.

In sum, the present invention compares with the existing fixing wind turbine of blade rotating angle that adopts, this system not only can effectively reduce the startup wind speed of vertical axis aerogenerator, but also greatly improve wind energy utilization, simple in structure, with low cost, have very important significance for abundant exploitation wind energy power.

Below in conjunction with accompanying drawing and concrete enforcement, a kind of wind power generating set with vertical shaft that can automatically regulate the angle of attack is described further.

Description of drawings

Fig. 1 is a kind of wind power generating set with vertical shaft perspective view that can automatically regulate the angle of attack;

Fig. 2 is a kind of wind power generating set with vertical shaft plane structure sectional view that can automatically regulate the angle of attack;

Fig. 3 is the sectional view along the A-A line in Fig. 2;

Fig. 4 is along direction shown in Figure 3, the schematic diagram when rotating 30 ° between the blade up time.

Embodiment

As shown in Figure 1 to Figure 3, the present invention is a kind of wind power generating set with vertical shaft that can automatically regulate the angle of attack, and it effectively reduces the startup wind speed of vertical axis aerogenerator and improve wind energy utilization by the adjusting vane angle of attack; It is comprised of blade 1, blade upper mounted plate 2, blade bottom plate 3, output shaft 4, rectangle projection 5, cam 6, actuated by cams assembly 7 and base 8; Blade 1 is provided with rotating shaft, and blade 1 rotating shaft one end is articulated in blade upper mounted plate 2, and the other end is articulated in blade bottom plate 3; Blade upper mounted plate 2 is rigidly connected with output shaft 4; Blade bottom plate 3 passes through bearing hinge connection with base 8; Rectangle projection 5 is fixed with the rotating shaft bottom of blade 1, and it is tangent with cam 6 evagination circular arcs that the side of rectangle projection 5 remains; The external frame of cam 6 mainly is comprised of the four arcs line, is respectively evagination circular arc 61, evagination circular arc 63, interior concave circular arc 62 and interior concave circular arc 64, and during rotation, rectangle projection 5 contacts with this four arcs all the time; As shown in Figure 4, wherein when rectangle projection 5 is rolled to interior concave

circular arc

62 or 64, can be around blade 1 rotating shaft rotation under rectangle projection 5 rotation pre-tightening mechanism (not shown) effect within it, keep contacting with concave

circular arc

62 or 64, when going to flex point, 5 of rectangle projections can be walked around the dead point, right angle and carry out 90 ° of rotations, thereby drive the blade 1 that is fixed together with rectangle projection 5, and then rotate, and reach adjusting vane angle of attack purpose.

Actuated by cams assembly 7 is fixed in above base 8, which is provided with wind transducer 71, motor 72 and gear drive 73, when extraneous change of the wind, by after wind transducer 71 directions, again signal is passed to motor 72, rotated by motor 72 and gear drive 73 associating driving cams 6, make cam 6 remain with wind direction and remain consistent.

Base 8 is hollow arbor braid flange arrangements, and endoporus 81 is hinged by bearing and output shaft 4, plays the transmission supporting effect, and outer axial face 82 is hinged with blade bottom plate 3 and cam 5 respectively by bearing; The package unit mounting hole by flange in the bottom 83 and utility pole or building finally is connected and fixed, and then output shaft 4 is connected power generating equipments, finally realizes generating.

Above-mentioned example and diagram and non-limiting product form of the present invention and pattern, the those of ordinary skill of any described technical field, to its suitable variation or modification of doing, all should be considered as not breaking away from patent category of the present invention.

Claims

1. the wind power generating set with vertical shaft that can automatically regulate the angle of attack, is characterized in that: blade, blade upper mounted plate, blade bottom plate, output shaft, rectangle projection, cam, actuated by cams assembly and base, consist of; Blade is provided with rotating shaft, by rotating shaft, blade is articulated between blade upper mounted plate and blade bottom plate; Blade upper mounted plate and output shaft are rigidly connected; Blade bottom plate and base pass through bearing hinge connection; The rectangle projection is fixed in blade rotor and with the external frame of cam, contacts; The actuated by cams assembly is located at the cam below, and is fixed on base; Package unit is fixed on carrier by base.

2. a kind of wind power generating set with vertical shaft that can automatically regulate the angle of attack as claimed in claim 1, it is characterized in that: the cam external frame mainly is comprised of four arcs, wherein two sections is concentric evagination circular arc, connects by concave circular arc in two sections between this two circular arc, forms flex point in joint.