CN201621001U

CN201621001U - Wind wheel capable of adjusting blade angle

Info

Publication number: CN201621001U
Application number: CN2010200267024U
Authority: CN
Inventors: 甘卫农
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-14
Filing date: 2010-01-14
Publication date: 2010-11-03
Anticipated expiration: 2020-01-14

Abstract

The utility model discloses a wind wheel capable of adjusting the blade angle, which comprises a main shaft of the wind wheel and a blade group, wherein the blade group consists of brackets fixed on the main shaft, a plurality of blades among the brackets and a finger wind device, wherein the blades are arranged among the brackets through a rotating shaft and are fixedly connected with the rotating shaft which is also provided with a blade angle adjusting gear; the finger wind device consists of a wind direction positioning plate and a rotating component; and the winding direction positioning plate is fixed on the rotating component which is in driving connection with the blade angle adjusting gear through a driving component. The utility model can adjust the blade angle and has high conversion ratio from wind energy to mechanical energy.

Description

A kind of wind wheel of adjustable vane angle

Technical field

The utility model relates to a kind of wind wheel, especially a kind of wind wheel of adjustable vane angle.

Background technique

At present, the power blowing area of existing vertical axis aerogenerator is more less than usually with the resistance blowing area, and wind energy transformation is the inefficiency of mechanical energy.And do not refer to the wind device, and can not guarantee that all blade planes all produce equidirectional rotatory force when wind comes, can't adjust the angle of blade and wind during work, so wind energy transformation is that the efficient of kinetic energy is low.Even industrialization level axis wind power generator wind wheel efficient is also generally below 50%.

The model utility content

The utility model purpose be to provide a kind of can the adjusting vane angle, wind energy transformation is the wind wheel of the high adjustable vane angle of mechanical energy conversion ratio.

For achieving the above object, the technical solution adopted in the utility model is: a kind of wind wheel of adjustable vane angle comprises wind wheel main shaft and fan blade group, the fan blade group is by the support that is fixed on the main shaft, a plurality of blades between the support and finger wind device are formed, described blade pass is crossed rotating shaft and is installed between the support, blade is fixedlyed connected with rotating shaft, in rotating shaft, also be provided with the blade angle adjusting gear, on support, be provided with and refer to the wind device, described finger wind device is made up of wind direction positioning plate and rotatable parts, the wind direction positioning plate is fixed on the rotatable parts, and rotatable parts are in transmission connection by transmission part and blade angle adjusting gear.

Described rotatable parts are gear, and it is in transmission connection by driving gear and blade angle adjusting gear.

Described rotatable parts are cam, and this cam is in transmission connection by tooth bar contacted with it and blade angle adjusting gear.

After the utility model adopts said structure, refer to the wind device by on support, being provided with, finger wind device is made up of wind direction positioning plate and rotatable parts, the wind direction positioning plate is fixed on the rotatable parts, rotatable parts are in transmission connection by transmission part and blade angle adjusting gear, therefore by referring to that the wind device can utilize the natural wind location, by referring to that the absolute blade angle adjusting gear constant and that be in transmission connection with it of wind device rotatable parts direction constantly rotates the adjustable vane angle, having improved one week of vane rotation (in any position) wind energy transformation is the conversion ratio of mechanical energy, wind wheel efficient increases substantially, if ignore the windage of friction and loss and blade termination, wind energy transformation is that the efficient of mechanical energy reaches 75% (a wind conversion ratio 50%+ auxiliary wind conversion ratio 25%) in theory; And blade does not have streamline shape or arcuate structure, is convenient to manufacturing and becomes cage and tower wind wheel, cuts down finished cost; Do not need electronic, hydraulic pressure and other power adjustment fan blade angles yet.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

Fig. 1 is one group of fan blade group of the utility model schematic representation;

Fig. 2 is two groups of fan blade groups of the utility model schematic representation;

Fig. 3 refers to wind device schematic representation for the utility model;

Fig. 4 is cam and blade angle adjusting gear connection diagram for the utility model refers to wind device rotatable parts.

Among the figure: 1 main shaft, 2 fan blade groups, 21 supports, 22 blades, 23 refer to wind device, 231 wind direction positioning plates, 232 rotatable parts, 24 rotating shafts, 25 blade angle adjusting gears, 26 transmission paries.

Embodiment

Shown in Fig. 1,2 and 3, wind wheel main shaft 1 and the fan blade group of comprising of the present utility model, described fan blade group 2 is preferably more than two groups.Fan blade group 2 is by the support 21 that is fixed on the main shaft 1, a plurality of blades 22 between the support 21 and finger wind device 23 are formed, described blade 22 is installed between the support 21 by rotating shaft 24, blade 22 is fixedly connected with rotating shaft 24, in rotating shaft 24, also be provided with blade angle adjusting gear 25, on support 21, be provided with and refer to wind device 23, described finger wind device 23 is made up of wind direction positioning plate 231 and rotatable parts 232, wind direction positioning plate 231 is fixed on the rotatable parts 232, rotatable parts 232 are connected with blade angle adjusting gear transmission 25 by transmission part 26, this embodiment's rotatable parts 232 are gear, and it is in transmission connection by driving gear and blade angle adjusting gear 25.Refer to that at this moment wind device 23 gear drive then can make blade 22 even angle change, therefore, blade 22 can be by people's the adjusting that needs.During work, when support 21 turns over 90 ° clockwise (after wind position), blade 22 turns over 45 ° counterclockwise, and blade 22 planes and eolian 45 become still outputting power (0.5f), and rotatory force is followed the wind and taken turns unanimity.When support 21 (after wind position) when 0 turns over 180 ° clockwise, blade 22 turns over 90 ° counterclockwise, blade 22 planes and eolian 0 ° of angle, and rotatory force drops to minimum, and then rotatory force constantly increases.When support 21 (after wind position) when 0 turns over 270 ° clockwise, blade 22 turns over 135 ° counterclockwise, blade 22 planes and eolian negative 45, and outputting power is increased to (0.5f) again, and the rotatory force direction does not change all the time.When support 21 (after wind position) when 0 turns over 360 ° clockwise, blade 22 turns over 180 ° counterclockwise, returns to 0 state again, output maximum output (1.0f).For the wind wheel that facings the wind, the rotating force of the blade 22 of front is 0 ~ 1 integration, average output 0.5f; The rotating force of the blade 22 of back is 1～0 integration, average output 0.5f; Any one group of fan blade is all the same, goes round and begins again.Owing to referring to that wind device 23 is motionless by the wind location, so refer to that wind device 23 can be contained in wind wheel main shaft 1 place and supply each group fan blade group 2 shared, also can be contained on the support 21 and independently use by this group fan blade group 2, equally can adjusting vane 22 angles.When being contained on the support 21, wind wheel rotates a week (360 °), and blade angle adjusting gear 25 will rotate (180 °).If wind wheel rotates counterclockwise, blade 22 just clockwise rotates, and effect is the same; Blade 22 not necessarily guarantees vertical with wind, but must be to refer to that continuous angle changing guarantees the equidirectional rotatory force that output is maximum under

wind device

23 and 25 effects of blade angle gear.

Fig. 4 adopts cam and blade angle adjusting gear 25 connection diagrams for referring to wind device rotatable parts 232, and the finger wind device cam radius of increase is inhomogeneous to make the inhomogeneous rotation of fan blade angle; The minimum and maximum position of radius that refers to wind device 23 cams, generally be exactly blade 22 angle calcaneus branches framves 21 consistent location, blade 22 vertical with wind (being designated as 0) herein, be blade 22 maximum output (1.0f) positions, blade angle is regulated tooth bar 25 and is also being referred to that the minimum place of wind device cam radius begins to regulate fan blade angle.

Finger wind device 23 keeps relatively-stationary position and box haul to change with wind direction and changes, and when wind direction is constant, refers to that wind device 23 directions just immobilize.The cam of finger wind device 23 makes the rack linear motion by the variation of its radius, adjusting vane 22 angles, and blade 22 rotates 180 ° when making wind wheel rotate 360 °, keeps wind wheel maintenance output peak torque.Change and refer to that the processing of wind device cam radian just can make fan blade have different angles.Blade 22 rotated 180 ° when finger wind device 23 gears made wind wheel rotate 360 ° by gear transmission.Refer to that wind device 23 can rotate, refer to that wind device 23 can be installed in (it is shared to organize fan blade) on the wind wheel main shaft 1 more, also can be installed in (can not can only use gear type with cammingly, each group is used separately) on every group of blade support 21.

The utility model can improve blade 22 power blowing areas and resistance blowing area ratio by referring to wind device 23 and blade angle adjusting gear 25 adjusting vane 22 angles continuously, is the conversion ratio of mechanical energy thereby improve wind energy transformation.

Claims

1. the wind wheel of an adjustable vane angle, it comprises wind wheel main shaft (1) and fan blade group (2), it is characterized in that: fan blade group (2) is by the support (21) that is fixed on the main shaft (1), a plurality of blades (22) between the support (21) and finger wind device (23) are formed, described blade (22) is installed between the support (211) by rotating shaft (24), blade (22) is fixedlyed connected with rotating shaft (24), in rotating shaft (24), also be provided with blade angle adjusting gear (25), described finger wind device (23) is made up of wind direction positioning plate (231) and rotatable parts (232), wind direction positioning plate (231) is fixed on the rotatable parts (232), and rotatable parts (232) are in transmission connection by transmission part (26) and blade angle adjusting gear (25).

2. the wind wheel of adjustable vane angle according to claim 1 is characterized in that: described rotatable parts (232) are gear, and it is in transmission connection by driving gear and blade angle adjusting gear (25).

3. the wind wheel of adjustable vane angle according to claim 1 is characterized in that: described rotatable parts (232) are cam, and this cam is in transmission connection by tooth bar contacted with it and blade angle adjusting gear (26).