CN103397985A

CN103397985A - High-torque cascade type wind turbine generator

Info

Publication number: CN103397985A
Application number: CN2013103620603A
Authority: CN
Inventors: 赵仡
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-19
Filing date: 2013-08-19
Publication date: 2013-11-20
Anticipated expiration: 2033-08-19
Also published as: CN103397985B

Abstract

The invention relates to a high-torque cascade type wind turbine generator which comprises a fan frame body, a positioning bearing, a rotating spindle, at least three rotating blades and a generator, wherein the at least three rotating blades are uniformly fixed and distributed on the spindle wall; a cross section of each rotating blade adopts an angular structure; a triangular baffle plate is arranged at the end part of one end, away from the rotating spindle, of each rotating blade; and an included angle alpha formed by the rotating blades adopting the angular structures ranges from 30 degrees to 90 degrees. The high-torque cascade type wind turbine generator occupies small area and has small requirements for terrain; further, the wind turbine generators can be vertical cascaded to constitute an upright tower type wind turbine generator set; the upright tower type wind turbine generator set can constitute a wind power plant, and the space utilization rate, the land utilization rate and the wind energy utilization rate are higher than those of a conventional wind turbine generator set; and a single wind turbine generator adopts a modularized framework structure, so that the paired wind turbine generators are simple and convenient to assemble.

Description

But a kind of high pulling torque superposition type wind-driven generator

Technical field

The present invention relates to power generating equipment, but relate in particular to a kind of high pulling torque superposition type wind-driven generator.

Background technique

At present, the most of three blade propeller formula wind wheel rotary actuation generators that adopt of international wind-driven generator generate electricity; Because this three blade major diameter blade of wind-driven generator diameters are huge, make this generator need to build very highly, the height that generally supports is at 50 to 70 meters, and because the blade rotary radius is large, the distance at adjacent wind-driven generator interval is also very large in twos, the floor space of wind power generating set is large, the direct utilization ratio less than 20% of wind-resources; Because this wind turbine equipment is huge, the complete machine cost is high again, and installing needs that large lifting equipment is auxiliary to carry out, and the installation cost of this wind-driven generator is huge; And, often not only one or two of wind power generating set, but form a wind power plant by tens, this just need to find Plain or hills Construction of Wind farm that the plot gesture is mild, therefore the installation of this wind-driven generator is subject to the strict restriction of region location of installing, thereby affects the universal and development speed of this green energy resource of wind-power electricity generation.

Summary of the invention

But technical problem to be solved by this invention is to provide a kind of high pulling torque superposition type wind-driven generator, it is little that its single wind-driven generator has floor space, to physical features require low, and it can form upright tower type aerogenerator group by vertical overlapping, this upright tower type aerogenerator group can form a wind power plant, the equal height of space availability ratio, land use capability and wind energy utilization and existing wind power generating set, because single wind-driven generator adopts the modular frame structure, make wind-driven generator assembling in twos simple and efficient.

for solving the problems of the technologies described above, the present invention adopts following technical proposals: but a kind of high pulling torque superposition type wind-driven generator, and it comprises rotation blade and the generator of blower frame body, positioning bearing, rotating spindle, at least three leaves, the horizontal plane that the upper frame of described blower frame body is interior and lower frame is interior correspondence respectively is provided with a rotary main shaft fixing device, it is firm that this frame structure makes wind-driven generator support, with low cost, and six of frame structures are ventilative, can not affect the utilization ratio of wind energy, rotary main shaft fixing device in framework upper-end surface and lower end surface is that rotary main shaft is played to position-limiting action, also can increase simultaneously the intensity of framework upper-end surface and lower end surface, positioning bearing comprises positioning bearing and lower positioning bearing, the middle part of the rotary main shaft fixing device internal surface of two correspondences in up and down has been bolted respectively positioning bearing and lower positioning bearing, rotating spindle is sheathed between positioning bearing and lower positioning bearing matchingly, the rotation blade of at least three leaves equably stationary distribution on the rotating spindle axial wall, the cross section of described every leaf rotation blade is corner-shape structure, and the end away from rotating spindle one end of every leaf rotation blade is provided with the triangle catch, the angle α that the rotation blade of described corner-shape structure forms is 30 °～90 °, this end is provided with the rotation blade design of the corner-shape structure of triangle catch and fully follows aerodynamic principle, when wind-force blows to the rotation blade internal surface, this blade structure can increase windage to greatest extent, thereby catch wind-force and drive blade rotary, and the rotation blade of this blade offside is that outer surface is faced the wind-force direction at this moment, this sharp-pointed corner-shape structure greatly reduces the resistance to wind, the interference of minimizing to blade rotary, increase the utilization ratio of wind energy, experiment shows, when leaf angle is between 30 °～90 °, the utilization ratio of wind energy is high, angle is understood step-down less than the wind energy utilization of 30 °, on the axial wall of rotating spindle bottom, be fixed with the blower fan driving wheel, a generator with runner is fixed on the rotary main shaft fixing device of blower frame body lower end, between the runner of blower fan driving wheel and generator, by chain or belt transmission, is connected.

Described every leaf rotation blade consists of the fan blade of horizontal support bar and corner-shape structure, horizontal support bar one end is fixed on rotary main shaft, the triangle catch inwall of the horizontal support bar the other end and rotation blade is fixed, and the fan blade inwall bending edge place of corner-shape structure is fixed in the laminating of the bar wall of horizontal support bar, this structural design can increase the intensity of rotation blade bending edge, prevents the rotation blade torsional deformation.

The angular bisector of described rotation blade angle is parallel with horizontal plane, make the stress equalization of rotation blade up and down bending edge, all rotation blades can be in the same level rotation, and the eccentric force of avoiding the unbalanced rotation of blade to bring rotating spindle causes the wearing and tearing of rotary main shaft.

described each rotary main shaft fixing device is the yi word pattern crossbeam, the yi word pattern crossbeam two ends on top are fixedly connected with the upper frame offside sidewall of blower frame body respectively, the yi word pattern crossbeam two ends of bottom are fixedly connected with the lower frame offside sidewall of blower frame body respectively, the fixation problem of rotary main shaft had both been considered in this rotary main shaft fixture structure design, in upper and lower end face, design this beam structure, also consider simultaneously the problem of saving cost of material and finished weight, in the upper and lower end face saving, use material as far as possible, also take into account the problem of considering wind energy utilization, in upper and lower end face, keep higher wind flux.

described each rotary main shaft fixing device is cruciform member, four ends of the cruciform member on top are fixedly connected with the upper frame madial wall of blower frame body respectively, four ends of the cruciform member of bottom are fixedly connected with the lower frame inside side walls of blower frame body respectively, the fixation problem of rotary main shaft had both been considered in this rotary main shaft fixture structure design, in upper and lower end face, design this beam structure, also consider simultaneously the problem of saving cost of material and finished weight, in the upper and lower end face saving, use material as far as possible, also take into account the problem of considering wind energy utilization, in upper and lower end face, keep higher wind flux.

described each rotary main shaft fixing device is by circular fixed plate and be uniformly distributed at least two bar shaped supporting traverses that are fixed on circular fixed plate peripheral wall and form, the bar shaped supporting traverse of top rotary main shaft fixing device is fixedly connected with the upper frame madial wall of blower frame body respectively, the bar shaped supporting traverse of bottom rotary main shaft fixing device is fixedly connected with the lower frame inside side walls of blower frame body respectively, the fixation problem of rotary main shaft had both been considered in this rotary main shaft fixture structure design, in upper and lower end face, design this beam structure, also consider simultaneously the problem of saving cost of material and finished weight, in the upper and lower end face saving, use material as far as possible, also take into account the problem of considering wind energy utilization, in upper and lower end face, keep higher wind flux.

Described rotation blade consists of four leaf rotation blades, shows by experiment, and this moment, the rotation blade wind energy utilization was the highest, then increases blade and will reduce the effect of going for a drive, and increases simultaneously the resistance to wind, and wind energy utilization efficiency reduces.

The blower frame body is square body frame structure, cuboid frame structure or cylindrical body frame structure.

The upper frame of described blower frame body and lower frame corresponding position are provided with the overlapping fixed via, so that after the overlapping of wind-driven generator up and down, be bolted in twos.

it is little that the present invention has floor space, to physical features require low, and it can form upright tower type aerogenerator group by vertical overlapping, this upright tower type aerogenerator group can form a wind power plant, space availability ratio, land use capability and wind energy utilization are all higher than existing wind power generating set, wherein wind energy utilization is on year-on-year basis more than existing large-scale three leaf generator efficiencies raising twices, the present invention can be combined into upright tower type aerogenerator group to tens units, generating efficiency is high, improve the land use capability of separate unit tradition cloverleaf wind-driven generator more than ten times, the land seizure that effectively reduces generating field takes, complete machine generating kilowatt cost is 50% of existing wind-driven generator, because single wind-driven generator adopts the modular frame structure, make wind-driven generator assembling in twos simple and efficient.

The accompanying drawing explanation

Fig. 1 is sectional structure schematic diagram of the present invention;

Fig. 2 is the left sideway swivel blade of Fig. 1 master TV structure schematic diagram;

Fig. 3 is the backsight structural representation of Fig. 2;

Fig. 4 is the left TV structure schematic diagram of Fig. 2;

Fig. 5 is the right TV structure schematic diagram of Fig. 2;

Fig. 6 is the plan structure schematic diagram of Fig. 2;

Fig. 7 is blower frame body and the rotary main shaft fixture structure schematic diagram of the embodiment of the present invention 1;

Fig. 8 is blower frame body and the rotary main shaft fixture structure schematic diagram of the embodiment of the present invention 2;

Fig. 9 is blower frame body and the rotary main shaft fixture structure schematic diagram of the embodiment of the present invention 3;

Figure 10 is blower frame body and the rotary main shaft fixture structure schematic diagram of the embodiment of the present invention 4.

Embodiment

Embodiment 1

referring to Fig. 1～shown in Figure 7, but a kind of high pulling torque superposition type wind-driven generator, and it comprises rotation blade 4 and the generator 5 of blower frame body 1, positioning bearing 2, rotating spindle 3, four leaves, the horizontal plane that the upper frame of described blower frame body 1 is interior and lower frame is interior correspondence respectively is provided with a rotary main shaft fixing device 11, positioning bearing 2 comprises positioning bearing 21 and lower positioning bearing 22, the middle part of rotary main shaft fixing device 11 internal surfaces of two correspondences in up and down has been bolted respectively positioning bearing 2 and lower positioning bearing 2, rotating spindle 3 is sheathed between positioning bearing 2 and lower positioning bearing 2 matchingly, the rotation blade 4 of four leaves equably stationary distribution on rotating spindle 3 axial walls, the cross section of described every leaf rotation blade 4 is corner-shape structure, and the end away from rotating spindle one end of every leaf rotation blade 4 is provided with triangle catch 41, the angle α that the rotation blade 4 of described corner-shape structure forms is 60 °, on rotating spindle 3 bottom axial walls, be fixed with blower fan driving wheel 31, and be fixed on the rotary main shaft fixing device 11 of blower frame body 1 lower end with the generator 5 of runner 51, between the runner 51 of blower fan driving wheel 31 and generator 5, by belt 32, be in transmission connection.

Described every leaf rotation blade 4 consists of the fan blade 43 of horizontal support bar 42 and corner-shape structure, horizontal support bar 42 1 ends are fixed on rotary main shaft 3, triangle catch 41 inwalls of horizontal support bar 42 the other ends and rotation blade 4 are fixed, and the fan blade 43 inwall bending edge places of corner-shape structure are fixed in the laminating of the bar wall of horizontal support bar 42.

The angular bisector of described rotation blade 4 angles is parallel with horizontal plane.

Described each rotary main shaft fixing device 11 is yi word pattern crossbeams, the yi word pattern crossbeam two ends on top are fixedly connected with the upper frame offside sidewall of blower frame body 1 respectively, and the yi word pattern crossbeam two ends of bottom are fixedly connected with the lower frame offside sidewall of blower frame body 1 respectively.

Blower frame body 1 is the square body frame structure.

The upper frame of described blower frame body 1 and lower frame corresponding position are provided with overlapping fixed via 12.

Embodiment 2

Shown in Figure 8, but a kind of high pulling torque superposition type wind-driven generator 1, its difference from Example 1 is, described each rotary main shaft fixing device 11 is cruciform members, four ends of the cruciform member on top are fixedly connected with the upper frame madial wall of blower frame body 1 respectively, and four ends of the cruciform member of bottom are fixedly connected with the lower frame inside side walls of blower frame body 1 respectively.

The angle α that the rotation blade 4 of described corner-shape structure forms is 30 °.

Blower frame body 1 is the cuboid frame structure.

Embodiment 3

Shown in Figure 9, but a kind of high pulling torque superposition type wind-driven generator 1, its difference from Example 1 is, described each rotary main shaft fixing device 11 is by circular fixed plate 111 and be uniformly distributed four bar shaped supporting traverses 112 that are fixed on circular fixed plate peripheral wall and form, the bar shaped supporting traverse 112 of top rotary main shaft fixing device 1 is fixedly connected with the upper frame madial wall of blower frame body 1 respectively, and the bar shaped supporting traverse 112 of bottom rotary main shaft fixing device 1 is fixedly connected with the lower frame inside side walls of blower frame body 1 respectively.

The angle α that the rotation blade 4 of described corner-shape structure forms is 90 °.

Blower frame body 1 is the cuboid frame structure.

Embodiment 4

Shown in Figure 10, but a kind of high pulling torque superposition type wind-driven generator 1, its difference from Example 1 is, described each rotary main shaft fixing device 11 is cruciform members, four ends of the cruciform member on top are fixedly connected with the upper frame madial wall of blower frame body 1 respectively, and four ends of the cruciform member of bottom are fixedly connected with the lower frame inside side walls of blower frame body 1 respectively.

The angle α that the rotation blade 4 of described corner-shape structure forms is 45 °.

Blower frame body 1 is the cylindrical body frame structure.

As mentioned above, but a kind of high pulling torque superposition type of the present invention wind-driven generator, described embodiment and figure; it is the present invention's implementation result preferably; be not to be confined to the present invention, approximate, the identical person such as structure every and of the present invention, feature, all should belong to the scope of protection of the invention.

Claims

but 1. high pulling torque superposition type wind-driven generator, it is characterized in that: it comprises rotation blade (4) and the generator (5) of blower frame body (1), positioning bearing (2), rotating spindle (3), at least three leaves, the horizontal plane that the upper frame of described blower frame body (1) is interior and lower frame is interior correspondence respectively is provided with a rotary main shaft fixing device (11), positioning bearing (2) comprises positioning bearing (21) and lower positioning bearing (22), the middle part of rotary main shaft fixing device (11) internal surface of two correspondences in up and down has been bolted respectively positioning bearing (21) and lower positioning bearing (22), rotating spindle (3) is sheathed between positioning bearing (21) and lower positioning bearing (22) matchingly, the rotation blade of at least three leaves (4) equably stationary distribution on rotating spindle (3) axial wall, the cross section of described every leaf rotation blade (4) is corner-shape structure, and the end away from rotating spindle one end of every leaf rotation blade (4) is provided with triangle catch (41), the angle α that the rotation blade of described corner-shape structure (4) forms is 30 °～90 °, on the axial wall of rotating spindle (3) bottom, be fixed with blower fan driving wheel (31), one generator with runner (51) (5) is fixed on the rotary main shaft fixing device (11) of blower frame body (1) lower end, between the runner (51) of blower fan driving wheel (31) and generator (5), by chain or belt (32), is in transmission connection.
2. but a kind of high pulling torque superposition type wind-driven generator according to claim 1, it is characterized in that: described every leaf rotation blade (4) consists of the fan blade (43) of horizontal support bar (42) and corner-shape structure, horizontal support bar (42) one ends are fixed on rotary main shaft (3), triangle catch (41) inwall of horizontal support bar (42) the other end and rotation blade (4) is fixed, and fan blade (43) the inwall bending edge place of corner-shape structure is fixed in the laminating of the bar wall of horizontal support bar (42).
3. but described a kind of high pulling torque superposition type wind-driven generator according to claim 1 and 2, it is characterized in that: the angular bisector of described rotation blade (4) angle is parallel with horizontal plane.
4. but a kind of high pulling torque superposition type wind-driven generator according to claim 3, it is characterized in that: described each rotary main shaft fixing device (11) is the yi word pattern crossbeam, the yi word pattern crossbeam two ends on top are fixedly connected with the upper frame offside sidewall of blower frame body (1) respectively, and the yi word pattern crossbeam two ends of bottom are fixedly connected with the lower frame offside sidewall of blower frame body (1) respectively.
5. but a kind of high pulling torque superposition type wind-driven generator according to claim 3, it is characterized in that: described each rotary main shaft fixing device (11) is cruciform member, four ends of the cruciform member on top are fixedly connected with the upper frame madial wall of blower frame body (1) respectively, and four ends of the cruciform member of bottom are fixedly connected with the lower frame inside side walls of blower frame body (1) respectively.
6. but a kind of high pulling torque superposition type wind-driven generator according to claim 3, it is characterized in that: described each rotary main shaft fixing device (11) is by circular fixed plate (111) and be uniformly distributed at least two bar shaped supporting traverses (112) of being fixed on circular fixed plate peripheral wall and form, the bar shaped supporting traverse (112) of top rotary main shaft fixing device (1) is fixedly connected with the upper frame madial wall of blower frame body (1) respectively, the bar shaped supporting traverse (112) of bottom rotary main shaft fixing device (1) is fixedly connected with the lower frame inside side walls of blower frame body (1) respectively.
7. but according to claim 4,5 or 6 described a kind of high pulling torque superposition type wind-driven generators, it is characterized in that: described rotation blade (4) consists of four leaf rotation blades.
8. but a kind of high pulling torque superposition type wind-driven generator according to claim 7, it is characterized in that: blower frame body (1) is square body frame structure, cuboid frame structure or cylindrical body frame structure.
9. but a kind of high pulling torque superposition type wind-driven generator according to claim 8, it is characterized in that: the upper frame of described blower frame body (1) and lower frame corresponding position are provided with overlapping fixed via (12).