CN2030660U

CN2030660U - Half-drag wind motor with vertical shaft

Info

Publication number: CN2030660U
Application number: CN88203955U
Authority: CN
Inventors: 王涧峰
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-04-16
Filing date: 1988-04-16
Publication date: 1989-01-11

Abstract

The utility model belongs to a generating mechanical device by means of wind power and provides a half-drag wind motor with vertical shaft, which mainly comprises a vertical rotation shaft, a dead axle, a transverse wing, a vertical wing, a slip-ring, a tail, etc. The transverse wing of the wind motor rotates over the vertical shaft along the slip-ring; by means of the slip-ring the resistant moment during the transverse wing rotating diminishes, and the turning moment of the whole wind motor increases. The utility model can increase the energy conversion efficiency of the wind motor.

Description

Half-drag wind motor with vertical shaft

The utility model belongs to a kind of mechanical device that utilizes wind-power electricity generation.

The wind energy conversion system that uses can be divided into two kinds in horizontal-shaft wind turbine and vertical axis wind machine in form at present.The characteristics of horizontal-shaft wind turbine are: the energy conversion efficiency height, output power is big.But this wind energy conversion system manufacturing process complexity, cost height.The vertical axis wind machine is simple in structure, cost is low, and the occasion that is suitable for low power demand is used.The major defect of vertical axis wind machine is that steering resistance is big, and rotating speed is slow.

The purpose of this utility model provides a kind of vertical axis wind machine.This wind energy conversion system is compared with existing other vertical axis wind machine, and its steering resistance reduces, and energy conversion efficiency improves.

Pivotal axis half shaft resistance type windmill provided by the utility model, its overall structure as shown in Figure 1.(1) is vertical rotating shaft among the figure; (2) dead axle; (3) the horizontal wing; (4) synchronous link rod; (5) pulley; (6) the vertical wing; (7) slip ring, slip ring the right and left circular arc is in respectively on the horizontal plane of different heights; (8) slip ring spider; (9) empennage, the blade of empennage end, the front is connected by hinge, and the back is fixing by a draught spring (10); (11) be generator; (12) (13) are respectively the driving gear that is contained in rotating shaft (1) and generator (11) rotating shaft; (14) generator support; (15) (16) movable axle sleeve.Slip ring spider is fixed on the empennage (9), and empennage is fixed on again on the movable axle sleeve (15); (17) fixed axle sleeve; (18) operating table, operating table are fixed on the fixed axle sleeve (17).Moving fulcrum (19) and governor lever (20) are housed on the operating table.The front end of governor lever (20) is connected with axle sleeve (16).Whole wind machine is erected on the wind energy conversion system base (21) by dead axle (2).Base (21) is connected and fixed with windmill tower frame during actual the use.

The working principle of above-mentioned vertical axis wind machine is: empennage (9) points to by wind direction to be determined.Slip ring (7) is fixed on the empennage (9) by slip ring spider (8), changes direction with empennage.Change about slip ring two different heights circular arcs always lay respectively at rotating shaft (1) on the windward side both sides with empennage.Each, is determined by the high and low position of slip ring (7) by synchronous link rod (4) the level angle on the horizontal wing (3) plane.The slip ring position is low, and the horizontal wing is sagging naturally, and horizontal winged petiole sheet is perpendicular to the ground, and horizontal wing windward side is big; Increase with pulley position, horizontal wing planar horizontal angle is gradually by perpendicular to the ground, becomes parallel to the groundly, and horizontal wing windward side becomes minimum by maximum.On the windward side because slip ring (7) do not wait at rotating shaft (1) left and right sides high and low position, the angle of inclination difference on horizontal wing plane, both sides, cause rotating shaft (1) be rotated in the forward moment and counterrotating moment does not wait.Wind energy conversion system is to utilize the moving generator rotation of this moment of rotation difference band.The vertical wing (6) of wind energy conversion system in addition, its cross section adopts streamlined, belongs to the lift-type fin.Vertically the wing (6) also can produce certain running torque, drives rotating shaft (1) rotation.

Making of the height difference of slip ring both sides design: when slip ring (7) when being in the extreme higher position, the horizontal wing of a side is in level, and the horizontal wing of opposite side just is in the nature hang.This moment wind energy conversion system the rotary arm maximum.Reduce the slip ring height, can reduce rotary arm.The purpose of the height of change slip ring (7), adjustment wind energy conversion system rotary arm size is: when wind speed, when wind-force changes, utilize the size that changes the counterrotating resisting moment, the running torque of maintenance wind energy conversion system is within the certain limit.Relatively stable to guarantee the wind energy conversion system rotating speed.The height and position of above-mentioned slip ring (7) is controlled by governor lever (20).Governor lever is by the position of change activity axle sleeve (16), the height of adjustment activity axle sleeve (15), empennage (9) and slip ring (7).Because the counter-rotating resistance arm of this wind energy conversion system is adjustable, is called half shaft resistance type windmill.

Wind energy conversion system provided by the utility model, the structure of its rotating shaft, dead axle part as shown in Figure 2.Rotating shaft (1) utilizes bearing (22), (23) to place dead axle (2) inside, can rotate freely.Empennage (9) is contained on the movable axle sleeve (15), can rotate around dead axle with (15).Movable axle sleeve (15) is positioned on the movable axle sleeve (16), and height is decided with (16).Axle sleeve (16) is subjected to lever (20) restriction, only can do sliding up and down along dead axle.Generator (11) is positioned on the electric machine support (14), by driving gear (12), (13) by rotating shaft (1) driven rotary.The effect of fixed axle sleeve among the figure (17) is: the aperture path (24) that one side provides generator lead wire to pass through, the diameter of increase activity axle sleeve (15), (16) makes fixing empennage, slip ring firm stable more thereon on the one hand.

As embodiment, desirable 1.5 meters of the horizontal wing radius in the accompanying drawing 1,0.4 meter of width of blade, vertically the wing is high 2 meters.0.5 meter of slip ring radius, 5 centimetres of diameter of pulley, slip ring both sides high and low position difference H is 10 centimetres.In these cases, when extraneous wind speed reached 6 meter per seconds, 1.2 kilowatts of the output power of wind energy conversion system can reach.

Vertical axle half its advantage of resistance type wind energy conversion system of this kind provided by the utility model is: (1) wind energy conversion system adopts vertical axle form, and it is simple in structure, cost is low; (2) because the design of the half resistance type of employing increases the rotation moment of vertical straight shaft type wind motor, energy conversion efficient improves; (3) can control flexibly the wind energy conversion system rotating speed according to wind-force wind speed difference. This kind wind energy conversion system is particularly suitable for the rural area or outlying mountain area uses.

Claims

1, a kind of pivotal axis half resistance type wind-driven generator that constitutes by the vertical wing, the horizontal wing, vertically rotating shaft, empennage etc., it is characterized in that: have several in the rotating shaft of wind energy conversion system (1) the horizontal wing (3), the horizontal wing of homonymy is connected to each other by synchronous link rod (4), be positioned at the lower edge of the following a pair of horizontal wing a pair of pulley (5) is housed, this pulley moves along slip ring (7), slip ring (7) encloses the plane and becomes stepped shaft, and the height difference between the two-part of the left and right sides is H.

2, according to the wind energy conversion system described in the claim 1, it is characterized in that: slip ring (7) is fixed on the movable axle sleeve (15), and axle sleeve (15) links to each other with empennage (9), and direction changes with empennage, and the two-part separating surface of slip ring (7) height is parallel with the empennage direction.

3, according to wind energy conversion system described in claim 1 or the claim 2, it is characterized in that: the fixing movable axle sleeve (15) of slip ring (7), be positioned on the movable axle sleeve (16) that can slide up and down along fixed axle sleeve (17), the high and low position of movable axle sleeve (16) is determined by governor lever (20).