CN201963469U

CN201963469U - Vertical axis windmill

Info

Publication number: CN201963469U
Application number: CN2011200598750U
Authority: CN
Inventors: 张振和
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-23
Filing date: 2011-03-09
Publication date: 2011-09-07
Anticipated expiration: 2021-03-09

Abstract

The utility model discloses a vertical axis windmill which comprises a principal axis, a crossbeam, a blade and a gear structure, wherein the crossbeam is arranged on the principal axis, the top of the principal axis is fixedly provided with the gear structure, the fan blade is arranged on the crossbeam, and the gear structure is connected with the blade. The crossbeam comprises an upper crossbeam and a lower crossbeam which are arranged with each other in parallel, wherein the upper crossbeam is arranged on the top of the principal axis, and the lower crossbeam is arranged at the bottom of the principal axis. The blade comprises a left blade and a right blade respectively arranged at two sides of the principal axis between the upper crossbeam and the lower crossbeam and connected with the gear structure by a chain or a belt. The windmill can rotate due to different forces applied to two sides of the blade, and the blade is hinged with the gear structure of the principal axis by the chain or the belt, so that the windmill not only can revolve but also can rotate like the planet, the frontal area is changed between the maximum area and the minimum area, the maximum torque output is generated, and the utilization factor of the wind energy is improved.

Description

Vertical axis windmill

Technical field

The utility model relates to the wind power plant field, particularly relates to a kind of vertical axis windmill that can effectively improve power coefficient.

Background technique

At present, the fan blade of vertical axis windmill that is used for wind-power electricity generation is around main axis rotation, and its shortcoming is: rotating speed is slower, and it is relatively poor that fan blade is accepted the ability of wind energy, causes vertical shaft wind energy utilization factor generally lower.Turn round this type windmill such as the Sa nest that everybody knows, the wind-force tachometer is exactly its representative, its main structure is that the cup-shaped hemispherical blade shroud of four semicircles is around middle main axis rotation, at main shaft arranged around semicircular fan blade more than two, promptly facing the wind with crowning, forward opposite side to and then facing the wind with recessed in main shaft one side.Crowning is different with recessed acceptance level in the face of wind.The advantage that though it has is simple in structure, moment of torsion output is bigger, only about 10%, it is lower as the wind energy conversion system wind energy utilization of wind-power electricity generation for power coefficient.The windmill that the utility model provides also is that different generation of power of utilizing fan blade to accept wind in both sides rotated, and concrete is that fan blade is changed between minimum and maximum at the wind-exposuring area of main shaft both sides, produces maximum moment of torsion output, and then the raising power coefficient.

The model utility content

The utility model purpose is in order to solve the deficiency of above-mentioned technology, a kind of vertical axis windmill to be provided.The windmill that the utility model is designed can revolve round the sun and can rotation as planet.Concrete is to install gear structure on the windmill main shaft perpendicular to ground, on the axle of the fan blade that centers on the windmill main axis rotation, also install gear, the gear of gear structure on the main shaft on chain or belt connection blade shaft, thereby make fan blade in main shaft revolution process, self produce rotation, make fan blade always to facing the wind than large size, minimum area against the wind, making full use of wind energy, and then bigger raising vertical axis windmill power coefficient.

In order to achieve the above object, technological scheme provided by the utility model is:

A kind of vertical axis windmill, it comprises main shaft, crossbeam and fan blade, also comprises gear structure, and device has crossbeam on the described main shaft, and described main shaft top is fixed with gear structure, and described fan blade device is on crossbeam, and described gear structure connects fan blade.

Further, described crossbeam by bearing means on main shaft.

Further, described crossbeam comprises upper beam and bottom end rail, and described upper beam and bottom end rail parallel device are on main shaft.

Further, described fan blade comprises left fan blade and right fan blade, and described left fan blade and right fan blade are respectively by the main shaft both sides of shaft device between upper beam and bottom end rail.

Further, the maximum windward side of described left fan blade and right fan blade is set to differ 90 degree.

Further, described comprises the right axle on left side axle on the left fan blade and the right fan blade, and described left axle is provided with left gear, and described right axle is provided with right gear, and described left gear and right gear are connected on the described gear structure by chain respectively.

Further, described left gear and right gear can also be connected on the described gear structure by belt respectively.

Adopt technique scheme, technique effect of the present utility model has:

1, the structural design of the utility model innovative form can be utilized wind energy greatly;

2, fan blade of the present utility model can revolve round the sun around main shaft, simultaneously can also rotation, make its all the time maximum area facing the wind, minimum area obtains the kinetic energy of wind against the wind to greatest extent;

3, the utility model can be made small-sized windmill, is used for the power supply of family and subsection, also can make large-scale windmill, and national grid is sent in generating, has great generalization and practicability.

Description of drawings

Fig. 1 is that structure master of the present utility model looks schematic representation;

Fig. 2 is a structure schematic top plan view of the present utility model;

Wherein: 1 main shaft, 11 gear structures, 2 crossbeams, 21 upper beams, 22 bottom end rails, 3 fan blades, 31 left fan blades, 32 right fan blades, 4,41 left side axles, 411 left gears, 42 right axles, 421 right gears, 5 driving gears.

Embodiment

As illustrated in fig. 1 and 2, be a kind of fairly simple embodiment of the present utility model, it comprises main shaft 1, crossbeam 2 (comprising upper beam 21 and bottom end rail 22) and fan blade 3 (comprising left fan blade 31 and right fan blade 32), main shaft 1 is perpendicular to ground, and its top is connected with gear structure 11, and gear structure 11 also can be designed to integrative-structure with main shaft 1.Device has upper beam 21 and bottom end rail 22 on the main shaft 1, upper beam 21 be parallel to each other with bottom end rail 22 and with main shaft 1 vertical setting, wherein upper beam 21 device is at the top of main shaft 1 and be positioned at the bottom of gear structure 11, bottom end rail 22 devices are in the bottom of main shaft 1, and upper beam 21 and bottom end rail 22 make it rotate around main shaft 1 on main shaft 1 by bearing means.Left side fan blade 31 and right fan blade 32 install between upper beam 21 and bottom end rail 22 by axle 4, and the corresponding both sides that are positioned at main shaft 1, the both sides that are main shaft 1 respectively are provided with one, and it can either also can be revolved round the sun around main shaft 1 with upper beam 21 and bottom end rail 22 in rotation.

Axle 4 comprises the left side axle 41 of left fan blade 31 and the right axle 42 of right fan blade 32.Left side axle 41 passes upper beam 21, and left side axle 41 partial devices of stretching out upper beam 21 have left gear 411; Right axle 42 passes upper beam 21, and right axle 42 partial devices of stretching out upper beam 21 have right gear 421.Left gear 411 and right gear 421 are linked on the gear structure 11 of main shaft 1 by chain or belt respectively, make the rotation of left fan blade 31 and right fan blade 32 and revolution can both keep carrying out synchronously.

Wherein, the middle part device of upper beam 21 and bottom end rail 22 has bearing, by bearing means on main shaft 1.The left side axle 41 of left side fan blade 31 and the right axle 42 of right fan blade 32 are also realized rotation by bearing means on crossbeam 2, and fan blade 3 is respectively rectangular configuration, the maximum windward side of its time rotational differs 90 degree all the time, so that be in maximum area when the fan blade of main shaft 1 one sides is facingd the wind, opposite side fan blade against the wind is in minimum area simultaneously.

The middle part of bottom end rail 22 also is fixed with the driving gear 5 that connects generator, and the center of driving gear 5 by bearing means on main shaft 1, driving gear 5 also can be established a through hole at the center, be sleeved on the main shaft 1 and with main shaft 1 Spielpassung.

Installation of the present utility model and concrete working procedure:

1, main shaft 1 of the present utility model, crossbeam 2 and fan blade 3 etc. are installed, wherein left fan blade 31 and right fan blade 32 can revolve round the sun around main shaft 1 together along with upper beam 21 and bottom end rail 22, left fan blade 31 and right fan blade 32 can also carry out rotation with left side axle 41 and right axle 42 for center separately respectively simultaneously, and the sense of rotation of left side fan blade 31 and right fan blade 32 is set to differ 90 degree (as Fig. 2) during device, to realize that maximum area is facingd the wind and the minimum area contrary wind all the time;

2, will install good windmill is vertically fixed on ground or the object of reference;

3, device is below bottom end rail 22 and can be that the driving gear 5 of center rotation is connected on the generator by chain or belt with main shaft 1, and the generator electricity is sent into family expenses storage battery or national grid.

When 4, the utility model moved: as illustrated in fig. 1 and 2, establish wind and blow (being the illustrated direction of arrow) from 90 ° of directions, the windward side of right fan blade 32 was perpendicular to wind direction at this moment, and maximum area is facingd the wind, stressed maximum; The windward side of left side fan blade 31 then is parallel to wind direction, and minimum area facings the wind, stressed minimum.Generation between a left side fan blade 31 and the right fan blade 32 bigger wind pressure poor, promptly produce the output torque of windmill.It is that the center rotates counterclockwise (revolution) with main shaft 1 that the moment of torsion that produces impels windmill.

In the time of revolution, left side fan blade 31 and right fan blade 32 are subjected to the driving of the gear structure 11 on the main shaft 1 respectively by chain or belt, make left fan blade 31 and right fan blade 32 produce rotation in main shaft 1 revolution, its two rotation is carried out synchronously and is differed 90 degree all the time.When right fan blade 32 is on the left of main shaft 1 public turnback arrives, because rotation, can just its windward side be transformed into by chain or the good length of belt budget and be parallel to wind direction (promptly illustrating the direction of arrow), minimum area is subjected to the maximum of wind-force when initial to become present minimum against the wind; This moment, left fan blade 31 also arrived the right side around main shaft 1 public turnback, because rotation can just be transformed into its windward side perpendicular to wind direction by chain or the good length of belt budget, facingd the wind with maximum area, was subjected to wind-force to become maximum.So just, can impel windmill to continue revolution goes down.

Left side fan blade 31 and right fan blade 32 constantly rotate around main shaft 1, drive upper beam 21 and bottom end rail 22 together around main shaft 1 revolution, the driving gear 5 that bottom end rail 22 drives simultaneously are packed in bottom end rail 22 bottom surfaces is that rotation is carried out at the center with main shaft 1, and then by chain or the work of belt drive generator, wind energy changes electric energy into the most at last.

In addition, chain described in the utility model and gear also can be replaced with transmission devices such as belt with effect same and belt pulleys.Fan blade described in the utility model, its rectangular shape also can be designed as other can realize the shape of facining the wind than large size.

It should be noted that at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. vertical axis windmill, it comprises main shaft (1), crossbeam (2) and fan blade (3), it is characterized in that: also comprise gear structure (11), described main shaft (1) is gone up device crossbeam (2), described main shaft (1) top is fixed with gear structure (11), described fan blade (3) device is on crossbeam (2), and described gear structure (11) connects fan blade (3).

2. vertical axis windmill according to claim 1 is characterized in that: described crossbeam (2) by bearing means on main shaft (1).

3. vertical axis windmill according to claim 1 is characterized in that: described crossbeam (2) comprises upper beam (21) and bottom end rail (22), and described upper beam (21) and bottom end rail (22) parallel device are on main shaft (1).

4. according to claim 1 or 3 described vertical axis windmills, it is characterized in that: described fan blade (3) comprises left fan blade (31) and right fan blade (32), and described left fan blade (31) and right fan blade (32) are respectively by main shaft (1) both sides of axle (4) device between upper beam (21) and bottom end rail (22).

5. vertical axis windmill according to claim 4 is characterized in that: the maximum windward side of described left fan blade (31) and right fan blade (32) is set to differ 90 degree.

6. vertical axis windmill according to claim 4, it is characterized in that: described axle (4) comprises left spool (41) and the right axle (42) on the right fan blade (32) on the left fan blade (31), described left side axle (41) is provided with left gear (411), described right axle (42) is provided with right gear (421), and described left gear (411) and right gear (421) are connected on the described gear structure (11) by chain respectively.

7. vertical axis windmill according to claim 6 is characterized in that: described left gear (411) and right gear (421) are connected on the described gear structure (11) by belt respectively.