CN102979671A

CN102979671A - Wind power conversion mechanism and high altitude wind power generator

Info

Publication number: CN102979671A
Application number: CN2012105209090A
Authority: CN
Inventors: 张阳
Original assignee: China National Coal Group Corp
Current assignee: China National Coal Group Corp
Priority date: 2012-12-06
Filing date: 2012-12-06
Publication date: 2013-03-20
Anticipated expiration: 2032-12-06
Also published as: CN102979671B

Abstract

The invention discloses a wind power conversion mechanism. The wind power conversion mechanism comprises reciprocating wheels, a power generator, universal rope guiding mechanisms and traction cables, wherein the power generator is driven by the reciprocating wheels to generate electricity; the universal rope guiding mechanisms are arranged at two sides of the reciprocating wheels; and the traction cables are wound on the reciprocating wheels and are used for connecting with two ends of an aircraft to respectively wind the universal rope guiding mechanism at the corresponding side. The mechanism is compact in structure and stale in performance, can effectively avoid cable winding and can adapt to various wind directions, so that the wind power conversion efficiency can be obviously improved. The invention further discloses a high altitude wind power generator with the wind power conversion mechanism.

Description

A kind of wind energy switching mechanism and overhead wind power generator

Technical field

The present invention relates to the wind energy power technology field, be converted to the mechanism of electric energy especially for the kinetic energy that the lightweight aircraft such as kite or levitating parachute are produced when the high-altitude flight.The invention still further relates to the overhead wind power generator that is provided with described wind energy switching mechanism.

Background technique

At present, wind energy has developed into a kind of main alternative energy gradually, and is promoted in the world.

Traditional wind-power electricity generation is subjected to the factor affecting such as place and wind direction and wind velocity larger, and have shortcomings: at first, wind power plant often scale is larger, employing be the surface wind generator, need to take a large amount of soils; Secondly, wind-driven generator has certain negative effect to ecotope; In addition, wind-driven generator needs the high tower support just can enter apart from the height of ground hundreds of foot, and wind-force of this height is less, simultaneously also unstable, be difficult to aim at any time wind direction, actual conversion is lower, and the manufacture cost of conventional wind-driven generator, construction cost are all very high.

Compare with surface wind, upper wind wind-force is stronger, and is also more stable, is easier to prediction than surface wind simultaneously, therefore more and more comes into one's own.In the prior art, utilize the mode of upper wind to mainly contain two kinds: the first is to build the power station aloft, in the high-altitude generating, then arrives ground by cable transfer; The second is to utilize aircraft first mechanical energy to be transported to ground, is converted into electric energy by generator again.

Wherein, first kind of way need to be stabilized in the high-altitude with equipment such as generator, cables, because weight is larger, therefore lift-off is highly limited, energy transformation ratio is low, and cost is high, the recovery difficulty, has the risk of falling, and there is not above shortcoming in the second way, becomes gradually the main R﹠D direction of utilizing high altitude wind energy.

Publication number is the application for a patent for invention Publication Specification of CN 101240778A, a kind of kite power generation method is disclosed, its working principle is that kite passes through Effector on the ground, change Windward angle, when kite Surface Vertical during in air-flow, kite produces maximum pull because of wind resistance, kite is by rope, and the drawing generator generating is between the flyback return period, the kite Effector changes the kite Windward angle, its kite surface is approached be parallel to air-flow and resistance is minimum, generator switches to motor, provides energy by the outside, return by rope pulling kite, realize being interrupted and utilize high altitude stream generating, its deficiency just to be that this method can only produce electric energy at the kite ascent stage, and need to consume back and forth drawing in kite of the extra energy, so the wind energy transformation rate is low.

Notice of authorization number discloses a kind of high-efficiency high-altitude kite electric generator for the utility model patent of CN 201714574U, formed by a pair of high-altitude kite, generator set, high-altitude kite is pulled by cable, be in upper-middle troposphere during work, the flight attitude controlling device is installed on the high-altitude kite, the control signal that can receive ground is regulated the angle that facings the wind of high-altitude kite, the cable interlock of two high-altitude kites, another kite descends when a high-altitude kite rises, cable and generator amature interlock, when high-altitude kite moved up and down, cable drove generator amature and rotates.

This power generating equipment back and forth moves up and down two kites and drives generator generation electric energy by control flight of kites attitude, need not to consume back and forth drawing in kite of the extra energy, but still has the following disadvantages:

One, the cable of two kites directly is wrapped on the coaxial line wheel of installing side by side, the cable distance is too approaching, kite can run foul of each other in moving process, damages easily, and the cable wrapping phenomena very easily occurs, in case twine, complete equipment just can't work, and needs again to go up to the air after recovery, the releasing winding, causes it not have actual application value.

They are two years old, although upper wind is more stable, but its wind direction still can change, and this just requires the high-altitude kite power generating equipment will have the ability that adapts to wind vector, and the kite cable of this equipment directly twines on the online wheel, can only adapt to the upper wind on the line wheel tangent direction, in case wind direction departs from, cable just can't normally twine, when wind direction during perpendicular to the tangent direction of line wheel, it is particularly serious that this problem can become, and kite can't drive generator amature and rotate.

Its three owing to very easily wrapping phenomena occurs, and the ability that adapts to wind vector a little less than, cause its power transmission efficiency low, energy transformation ratio only can maintain reduced levels, generated energy can't satisfy application request.

Summary of the invention

The first purpose of the present invention provides a kind of wind energy switching mechanism.This mechanism structure is compact, stable performance, can effectively avoid cable to twine, and can adapt to various wind directions, thereby significantly improve the wind energy conversion efficiency.

The second purpose of the present invention provides a kind of overhead wind power generator that is provided with described wind energy switching mechanism.

For realizing above-mentioned the first purpose, the invention provides a kind of wind energy switching mechanism, comprising:

Back and forth take turns;

Generator is by described reciprocal wheel drive generating;

Universal conductor rope mechanism is located at described reciprocal wheel both sides;

Pull-cord is set around described reciprocal wheel, and it is used for the universal conductor rope mechanism of the corresponding side of two ends difference pile warp of connection aircraft.

Preferably, described universal conductor rope mechanism comprises rope guide rack, and each described rope guide rack is equipped with Universal guide rope sheave and upper saw pulley.

Preferably, described Universal guide rope sheave is positioned at the inboard at described universal rope guide rack top, and described upper saw pulley is positioned at described Universal guide rope sheave below.

Preferably, described Universal guide rope sheave comprises up and down vertically arranged the first axle set and the second axle set, each described axle set comprises respectively two parallel wheel shafts, and described four wheel shafts are " well " font and distribute, and described pull-cord passes from the enclosed space that described four wheel shafts enclose.

Preferably, described reciprocal wheel is the single-wheel structure.

Preferably, described reciprocal wheel and described upper saw pulley, Universal guide rope sheave are positioned at same longitudinal plane substantially.

Preferably, further comprise sub-rope body, be located at described reciprocal wheel both sides; One end pile warp, first sub-rope body of described pull-cord, the other end pile warp second sub-rope body of described pull-cord.

Preferably, described the first sub-rope body and the second sub-rope body include support and are located at cable support member on the described support.

For realizing above-mentioned the second purpose, the invention provides a kind of overhead wind power generator, comprise high altitude wind receiving mechanism and surface wind energy converter structure, described surface wind energy converter structure is above-mentioned each described wind energy switching mechanism, one end of described pull-cord connects the first aircraft of described high altitude wind receiving mechanism, and the other end of described pull-cord connects the second aircraft of described high altitude wind receiving mechanism.

Preferably, described the first aircraft and the second aircraft are respectively equipped with the attitude of flight vehicle regulating and controlling mechanism.

Wind energy switching mechanism provided by the invention is provided with universal conductor rope mechanism in reciprocal wheel both sides, be wound in again reciprocal wheel behind the universal conductor rope mechanism of hawser pile warp of traction aircraft, can determine universal conductor rope mechanism and the spacing of back and forth taking turns according to Rational Parameters such as type of aircraft, aircraft size, flying height, geographical conditions during installation, thereby make aircraft under the support and leading role of universal conductor rope mechanism, remain safe distance, guarantee that pull-cord wrapping phenomena can not occur in the course of the work.

In addition, pull-cord is wrapped on the reciprocal wheel through behind the universal conductor rope mechanism, universal conductor rope mechanism can effectively guide and support pull-cord on all directions, ability with very stable adaptation wind vector, make pull-cord can be wrapped in correct mode on the reciprocal wheel, even the wind direction frequent occurrence changes, pull-cord is normally folding and unfolding still, and transmission efficiency remains unchanged, thereby guarantee that aircraft all can drive generator amature and rotate under various wind directions, realized utilizing high altitude wind energy continuously, the purpose of stable electric generation.

Owing to thoroughly avoided the pull-cord wrapping phenomena, and has the ability that adapts to wind vector, therefore a whole set of wind energy switching mechanism compact structure, operate steadily, has higher power transmission efficiency, transmission efficiency is generally more than 95%, significantly improved energy transformation ratio, its generated energy satisfies industrialized requirement fully, has very wide application prospect.

Overhead wind power generator provided by the invention is provided with described wind energy switching mechanism, because described wind energy switching mechanism has above-mentioned technique effect, the overhead wind power generator that is provided with this wind energy switching mechanism also should possess corresponding technique effect.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of wind energy switching mechanism provided by the present invention;

Fig. 2 is the plan view of wind energy switching mechanism shown in Figure 1;

Fig. 3 is the local enlarged diagram at I position among Fig. 1;

Fig. 4 is the local enlarged diagram at II position among Fig. 2;

Fig. 5 is bogie shown in Fig. 1, back and forth wheel and the side view of generator;

Fig. 6 is bogie shown in Fig. 2, back and forth wheel and the enlarged diagram of generator.

Among the figure:

1. bogie 2. rope guide racks 3. grounds 4. are back and forth taken turns 5. generators, 6. Universal guide rope sheave 6-1. pedestal 6-2. wheel shaft 6-3. rope hole, 7. upper saw pulleys, 8. pull-cords, 9. bearing supports, 10. sprocket wheels, 11. chain 12-1. the first sub-rope body 12-2. the second sub-rope body 13-1. the first aircraft 13-2. the second aircraft, 14. attitude of flight vehicle regulating and controlling mechanisms

Embodiment

In order to make those skilled in the art person understand better the present invention program, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.

Please refer to Fig. 1, Fig. 2, Fig. 1 is the structural representation of a kind of embodiment of wind energy switching mechanism provided by the present invention; Fig. 2 is the plan view of wind energy switching mechanism shown in Figure 1.

As shown in the figure, in the first embodiment, the main body part of wind energy switching mechanism provided by the invention is the rope guide rack 2 of bogie 1 and both sides thereof, bogie 1 is welded into the rectangular frame with certain altitude by section bar, its bottom is fixed on the ground 3 by flange, bidirectional reciprocating wheel 4 and generator 5 are installed in the top, back and forth take turns 4 rotating shaft and are in transmission connection by driving mechanism and generator 5.

The quantity of rope guide rack 2 is two, be located at respectively bogie 1 both sides, the main body of each rope guide rack 2 is rectangle pipe material, its bottom is fixed on the ground 3 by flange, the height of rope guide rack 2 exceeds bogie 1 certain distance, and the spacing of itself and bogie 1 is decided on actual conditions, in order to make aircraft under the support and leading role of rope guide rack 2, remain safe distance, guarantee that aircraft wrapping phenomena can not occur in the course of the work.

Universal guide rope sheave 6 is installed in the inboard at rope guide rack 2 tops, and upper saw pulley 7 is positioned at Universal guide rope sheave 6 belows, and substantially is in the same level face with reciprocal wheel 4, and what make pull-cord 8 moves towards L-shaped.

Here need to prove, bogie shown in the figure 1 and rope guide rack 2 are installed on the ground 3 of same level, but in actual applications, do not limit to therewith, guaranteeing pull-cord normally in the situation of folding and unfolding, bogie 1 can be installed on the different horizontal planes with two rope guide racks 2, the mounting plane of rope guide rack 2 can be higher or lower than the mounting plane of bogie 1, three's mounting plane also can distribution gradient, to adapt to various terrian condition, has extremely strong adaptive capacity.

Please refer to Fig. 3, Fig. 4, Fig. 3 is the local enlarged diagram at I position among Fig. 1; Fig. 4 is the local enlarged diagram at II position among Fig. 2.

Universal guide rope sheave 6 is mainly by pedestal 6-1, vertically arranged the first axle set and the second axle set consist of up and down, be provided with riser around the pedestal 6-1 and form bearing support, each axle set comprises respectively two parallel wheel shaft 6-2, four wheel shaft 6-2 are " well " font and distribute, the two ends of each wheel shaft 6-2 are by bearings, and the enclosed space that pull-cord 8 encloses from four wheel shaft 6-2 and the rope hole 6-3 on the pedestal 6-1 base plate pass.

Four wheel shaft 6-2 can effectively guide and support pull-cord 8 on all directions, ability with very stable adaptation wind vector, pull-cord 8 is through behind the upper saw pulley 7, can be wrapped in correct mode on the reciprocal wheel 4, under the coordinative role of Universal guide rope sheave 6 and upper saw pulley 7, even the wind direction frequent occurrence changes, pull-cord 8 is normally folding and unfolding still, and transmission efficiency remains unchanged, thereby guarantee that aircraft all can drive generator amature and rotate under various wind directions, realized utilizing high altitude wind energy continuously, the purpose of stable electric generation.

Please refer to Fig. 5, Fig. 6, Fig. 5 is bogie shown in Fig. 1, back and forth wheel and the side view of generator; Fig. 6 is bogie shown in Fig. 2, back and forth wheel and the enlarged diagram of generator.

Back and forth wheel 4 is erected at bogie 1 top by bearing support 9, and its rotating shaft is by the clutch shaft bearing on the bearing support 9 and the second bearings, and the rotating shaft outer end is in transmission connection by sprocket wheel 10 and chain 11 rotor with generator 5.Certainly, also can back and forth between wheel 4 and the generator 5 adjustable gear be set as required.

Back and forth wheel 4 is the single-wheel structure, substantially be positioned at same longitudinal plane with upper saw pulley 7, Universal guide rope sheave 6, pull-cord 8 is set around reciprocal wheel, upper saw pulley 7 and the Universal guide rope sheave 6 of the corresponding side of pile warp oppositely drawn and distinguished at its two ends that are used for the connection aircraft, the canoe of pull-cord 8 should guarantee aircraft when alternately rising and descending, and can drive back and forth reciprocating rotation of reciprocal wheel 4.

Particularly, pull-cord 8 can be two hawsers, and an end of two hawsers is fixed in reciprocal wheel 4, and the other end is wound in reciprocal wheel 4 with opposite direction and draws.

Pull-cord 8 also can be for being wound in a hawser of reciprocal wheel 4, and draw with opposite direction at its two ends, and the single line cable is let fly away, is easy to folding and unfolding.

For wearing and tearing are interfered, stung mutually to the pull-cord of avoiding being wound in same reciprocal wheel 4 mutually, sub-rope body can further be set, the first sub-rope body 12-1 and the second sub-rope body 12-2 include support and are located at cable support member on the support, for example divide the rope sheave (not shown), two sub-rope bodies are located at reciprocal wheel 4 both sides, and mutually stagger in the axial direction, the outside of the first Outlet pile warp first sub-rope body 12-1 of pull-cord 8, the outside of the second Outlet pile warp second sub-rope body 12-2 of pull-cord 8.Like this, the first Outlet and second Outlet of pull-cord can keep a determining deviation, are separated by sub-rope body all the time, can mutually not interfere, and increase hawser and the area of contact of back and forth taking turns, and can avoid skidding.

Certainly, sub-rope body also can be the separated time guide rod, namely back and forth takes turns the vertical bearing rod of installing in both sides, and pull-cord directly is supported on the rotatable bearing rod, can realize equally a minute rope purpose.

In order to ensure system safety operation, can install safety cover additional at rotating part, even if the general error of operation occurs, can not cause fatal harm to personnel and equipment yet; Simultaneously, can install arrestment mechanism additional for back and forth taking turns 4, stop in order to when breaking down or overhaul, can promptly stop, avoid band to carry an operation and fortuitous event occurs.

For avoiding the broken by lightning motor, can adopt polyurethane (or other has the insulating material of some strength) flange to be connected back and forth wheel 4 and generator 5 with bolt, even if the Accidental occurrence thunderbolt, electric charge can flow into the earth through frame, can't arrive generator 5.

In addition, can also and back and forth take turns at upper saw pulley 7 and install suitable drying wheel between 4 additional, so that when sleety weather, pull-cord 8 entered reciprocal wheel 4 front dryings, can also increase skid resistant course at reciprocal wheel 4, skid at reciprocal wheel 4 to prevent pull-cord 8.

The working principle of above-mentioned wind energy switching mechanism is as follows: by regulating the aircraft angle of attack, the angle of attack, wind-exposuring area or aerodynamic configuration etc., all can regulate windage and lift, both pulling force of making a concerted effort to form, pulling force official post aircraft generation to-and-fro motion, the to-and-fro motion of aircraft drives back and forth by pull-cord 8, and wheel 4 rotates, drive generator 5 by reciprocal wheel 4, so constantly back and forth, realize generating, and the power rectifier of forward and reverse operation being exported by the ground bridge type rectifier is positive work, regulate the output compensation during bank of super capacitors provides commutation, thereby reach uninterrupted stable electric generation.

When two aircraft Complete Synchronizations are faced upward when bowing, it is made a concerted effort is zero, and this moment, generator can not rotate, and did not have power stage yet,

When two aircraft just in time are in stretched and relaxed state, namely an aircraft aerodynamic force is maximum, in the situation of another aircraft aerodynamic force minimum, system is in optimum Working, namely then output work is larger the closer to the inverted running state for two aircraft, moves the closer to Complete Synchronization that then output power is less.

Certainly, above-mentioned wind energy switching mechanism only is a kind of preferred version, specifically is not limited to this, can make according to actual needs pointed adjustment on this basis, thereby obtains different mode of executions.For example Universal guide rope sheave adopts other structures, or back and forth wheel is connected by other driving mechanisms with generator, etc.Because mode in the cards is more, just illustrate no longer one by one here.But all should be within protection domain.

Please refer to Fig. 1, Fig. 2, except above-mentioned wind energy switching mechanism, the present invention also provides a kind of overhead wind power generator, comprises high altitude wind receiving mechanism and surface wind energy converter structure.

The high altitude wind receiving mechanism is by the first aircraft 13-1 that power is provided, the second aircraft 13-2 and the upper formations such as attitude of flight vehicle regulating and controlling mechanism 14 that arrange thereof, aircraft specifically can be kite, levitating parachute, delta wing or unmanned aircraft of being made by lightweight material etc., and the aircraft of both sides can a plurality of paired layouts, the attitude of flight vehicle regulating and controlling mechanism can be driven by the subsidiary wind energy plant of aircraft, also can adopt solar cell, storage battery, wireless power, the ground cable send the electricity etc. mode drive, and can carry out on ground Wireless remote control, perhaps by the automatic reciprocating operation of predefined program.

Surface wind energy converter structure is wind energy switching mechanism mentioned above, one end of pull-cord 8 connects the first aircraft 13-1, the other end of pull-cord 8 connects the second aircraft 13-2, the first aircraft 13-1 and the second aircraft 13-2 are connected as a single entity by pull-cord 8, realize interlock, all the other structures please refer to prior art, and this paper repeats no more.

This overhead wind power generator can be on land, the marine use and basic land occupation not, and when at sea using, ground installation can directly be fixed on the seabed, and the zone that is fit to use no longer is confined to " three Norths " area, and all parts of the country all can be used.Because the ground installation of this cover system can be buried in underground, also can use at sea bed, so land, shoal, shallow sea, desert, island all can be used, floor space is few, and ground is had no special requirements, smooth or out-of-flatness all can be used.

More than wind energy switching mechanism provided by the present invention and overhead wind power generator are described in detail.Used specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand core concept of the present invention.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.

Claims

1. a wind energy switching mechanism is characterized in that, comprising:

Back and forth take turns;

Generator is by described reciprocal wheel drive;

2. wind energy switching mechanism according to claim 1 is characterized in that, described universal conductor rope mechanism comprises rope guide rack, and each described rope guide rack is equipped with Universal guide rope sheave and upper saw pulley.

3. wind energy switching mechanism according to claim 2 is characterized in that, described Universal guide rope sheave is positioned at the inboard at described universal rope guide rack top, and described upper saw pulley is positioned at described Universal guide rope sheave below.

4. according to claim 2 or 3 described wind energy switching mechanisms, it is characterized in that, described Universal guide rope sheave comprises up and down vertically arranged the first axle set and the second axle set, each described axle set comprises respectively two parallel wheel shafts, described four wheel shafts are " well " font and distribute, and described pull-cord passes from the enclosed space that described four wheel shafts enclose.

5. wind energy switching mechanism according to claim 1 is characterized in that, described reciprocal wheel is the single-wheel structure.

6. wind energy switching mechanism according to claim 5 is characterized in that, described reciprocal wheel and described upper saw pulley, Universal guide rope sheave are positioned at same longitudinal plane substantially.

7. according to claim 1,2,3,5 or 6 described wind energy switching mechanisms, it is characterized in that, further comprise sub-rope body, be located at described reciprocal wheel both sides; One end pile warp, first sub-rope body of described pull-cord, the other end pile warp second sub-rope body of described pull-cord.

8. wind energy switching mechanism according to claim 7 is characterized in that, described the first sub-rope body and the second sub-rope body include support and be located at cable support member on the described support.

9. overhead wind power generator, comprise high altitude wind receiving mechanism and surface wind energy converter structure, it is characterized in that, described surface wind energy converter structure is the claims 1 to 8 each described wind energy switching mechanisms, one end of described pull-cord connects the first aircraft of described high altitude wind receiving mechanism, and the other end of described pull-cord connects the second aircraft of described high altitude wind receiving mechanism.

10. overhead wind power generator according to claim 9 is characterized in that, described the first aircraft and the second aircraft are respectively equipped with the attitude of flight vehicle regulating and controlling mechanism.