CN113153629A - Automatic escalator type paddle-free wind power generation system - Google Patents

Abstract

The invention discloses an escalator type paddle-free wind power generation system which comprises a flexible transmission part, strip-shaped cloth, cross rods, transmission rollers and a support, wherein the support is rotatably connected with two transmission rollers, one transmission roller is arranged obliquely above the other transmission roller, the two transmission rollers are wound with the flexible transmission part, the flexible transmission part is provided with a plurality of cross rods, the cross rods are arranged at equal intervals, the strip-shaped cloth is fixed on the flexible transmission part, the adjacent cross rods form rectangular grids, the length of the strip-shaped cloth in each rectangular grid is larger than the interval of the adjacent cross rods, and the strip-shaped cloth in each rectangular grid is of a drooping arc-shaped pocket structure. The technical effects achieved are as follows: the cost is reduced, and the unique pocket-shaped cloth design increases the conversion efficiency of wind energy; the cloth, the chain and the cross bar are used for replacing the paddle of the traditional wind power generation system, and the cost of the system is greatly reduced.

Description

Automatic escalator type paddle-free wind power generation system

Technical Field

The invention relates to the technical field of power generation devices, in particular to an escalator type paddle-free wind power generation system.

Background

Currently, mainstream wind power generation systems fall into two main categories: the horizontal axis refers to that a main shaft of the system is horizontally arranged on the ground, namely that a rotating surface of a blade of a windmill is vertical to the ground; the vertical axis wind power generation system means that the main axis of the system is vertical to the ground, namely that the blades are horizontal to the ground; the two major wind power generation systems realize the conversion from wind energy to electric energy by driving the blades by wind power, and the blades are arranged on the main shaft, and the blades are driven by the wind power and the main shaft is driven by the blades.

The existing large-scale wind power generation system is almost a horizontal shaft system, a main shaft is horizontally arranged, the rotating surface of a blade is vertical to the ground, the blade is generally dozens of meters to dozens of meters long, and can generate electricity of a few degrees to dozens of degrees every revolution; the vertical axis wind power generation systems are adopted by some small-sized wind power generation systems, the efficiency of the vertical axis wind power generation systems is generally low, but the noise is low, the installation requirement is not high, and the vertical axis wind power generation systems are suitable for being installed in densely populated areas.

The cost of the current mainstream wind power generation system mainly comprises a plurality of parts such as a blade, a column, a foundation and a generator host; the blade is a part of the largest cost in the whole cost, and generally accounts for one fourth to one third of the cost of the whole system; if the cost of land occupation and foundation construction is not calculated, the cost occupied by the upright post of the windmill is not small, and generally occupies about one tenth.

The blades of the windmill are expensive because the wind power generation system has high requirements on the blades, firstly, the blades are required to be long enough and light in weight, secondly, the blades are required to be strong enough to withstand the pressure of strong wind, and the shape is required to meet the requirements of hydrodynamics; the cost of the blades is high due to the severe requirements of the wind power generation system on the blades.

Because the rotating surface of the paddle of the horizontal axis wind power generation system is vertical to the ground, the horizontal axis wind power generation system with larger capacity can not adopt an inclined pull rope to reinforce the upright column generally, otherwise, the paddle is easy to scrape off the inclined pull rope in a rotating way; therefore, the column of the large system must have a strong wind resistance without the stay cable, and thus the system in which the stay cable cannot be installed also increases the cost of the column and the foundation to a large extent.

Meanwhile, the noise of the horizontal shaft large-scale wind power generation system is generally large, and the horizontal shaft large-scale wind power generation system is not suitable for being installed on an existing building and needs to occupy the land.

Although the cost of the current wind power generation system is still reduced, the reduction amplitude and potential of the current wind power generation system are obviously not large; mainly because the technology adopted by the current horizontal axis wind power generation system and the vertical axis wind power generation system is quickly developed to the utmost, the main cost is the material cost, for example, the cost of the blade is mainly the cost of light fiber materials and resin, the cost of the upright column is mainly the cost of steel, and the cost of the foundation is mainly the cost of steel and cement.

The cost of the blade has been substantially limited by the length, strength, weight and profile requirements of the blade, which must be met by expensive high strength lightweight materials; the cost of the upright post and the foundation is limited by the wind resistance of the system, and particularly, the large horizontal shaft wind power generation system is not suitable for reinforcing the upright post by using a stay cable, needs a firm upright post and a firm foundation to resist strong wind, and further increases the cost of the upright post and the foundation.

For photovoltaic power generation, the material cost and the processing cost of monocrystalline silicon and polycrystalline silicon have a large reduction space, and with the rapid reduction of the cost of a photovoltaic power generation system, the main advantages of the existing wind power generation system compared with the photovoltaic power generation system are not cost, but the wind power generation system can generate power at night.

Therefore, the problem in the conventional wind power generation system is how to change the existing situation that the cost is difficult to reduce through technical innovation.

Disclosure of Invention

Therefore, the invention provides an escalator type blade-free wind power generation system to solve the problems in the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme:

according to a first aspect of the invention, the escalator type bladeless wind power generation system comprises a flexible transmission part, a strip-shaped cloth, cross rods, transmission rollers and a support, wherein the support is rotatably connected with two transmission rollers, one transmission roller is arranged obliquely above the other transmission roller, the flexible transmission part is wound on the two transmission rollers, the plurality of cross rods are arranged on the flexible transmission part at equal intervals, the strip-shaped cloth is fixed on the flexible transmission part, the adjacent cross rods form rectangular grids, the length of the strip-shaped cloth in each rectangular grid is larger than the distance between the adjacent cross rods, and the strip-shaped cloth in each rectangular grid is in a drooping arc-shaped pocket structure.

Further, the flexible transmission member is any one of a chain, a synchronous belt or a rope.

Further, the included angle between the wind receiving surface of the strip-shaped cloth and the horizontal wind direction is 30-60 degrees.

Further, the wind shield is arranged around the periphery of the support, and the strip-shaped cloth which rotates to the lower side is shielded by the wind shield.

Further, the transmission gyro wheel includes pivot and gear, the both ends of pivot are fixed with respectively the gear, the transmission gyro wheel the pivot is rotated and is connected on the support, flexible transmission spare encircles two the transmission gyro wheel the gear setting.

Further, the power generation device also comprises a generator, and a power input shaft of the generator is in transmission connection with the rotating shaft.

The power output shaft of the generator is in transmission connection with the power output shaft of the gearbox, and the power input shaft of the gearbox is in transmission connection with the rotating shaft.

Further, a power input shaft of the gearbox is in transmission connection with the rotating shaft through a bevel gear reverser or a belt transmission assembly.

Furthermore, a plurality of automatic escalator type blade-free wind power generation systems are arranged in a side-by-side stacked mode.

Furthermore, the automatic escalator type paddle-free wind power generation system is arranged at the top of the base in a horizontal mode.

The invention has the following advantages:

1. compared with the traditional wind power generation system, the wind power generation system has the main advantages that the cost is reduced, and the unique pocket-shaped cloth design increases the conversion efficiency of wind energy;

2. the cloth, the chains and the cross bars replace the blades of the traditional wind power generation system, so that the cost of the system is greatly reduced;

3. the cloth, the chains and the cross bars replace the blades of the traditional wind power generation system, so that the weight of the system is greatly reduced, the height of the system is greatly reduced, the stress of the upright posts is reduced, and the cost of the upright posts and the foundation can be reduced;

4. the scheme is a paddle-free system, and the stability of the upright post can be enhanced by using the diagonal draw ropes, so that the structural weight and the cost are reduced;

5. the system of the scheme can be deployed on the roof of the existing building, so that the cost of foundation and land can be reduced;

6. the scheme adopts the cloth as the wind-catching material, and the unique pocket-shaped windward side has higher wind-catching efficiency than the slender blade.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a front view of an escalator-type bladeless wind power generation system according to some embodiments of the present invention.

Fig. 2 is a side view of an escalator-type bladeless wind power generation system according to some embodiments of the present invention.

Fig. 3 is a perspective view of an escalator-type bladeless wind turbine system according to some embodiments of the present invention.

Fig. 4 is a partial front view of an escalator-type bladeless wind power generation system according to some embodiments of the present invention.

FIG. 5 is a partial side view of an escalator-type bladeless wind power generation system according to some embodiments of the present invention.

Fig. 6 is a partial perspective view of an escalator-type bladeless wind power generation system according to some embodiments of the present invention.

Fig. 7 is a front view of a driving wheel of an escalator-type bladeless wind power generation system according to some embodiments of the present invention.

Fig. 8 is a side view of a transmission wheel of an escalator-type bladeless wind power generation system according to some embodiments of the present invention.

Fig. 9 is a generator connection structure diagram of an escalator-type bladeless wind power generation system according to some embodiments of the present invention.

Fig. 10 is a generator connection structure diagram of an escalator-type bladeless wind power generation system according to some embodiments of the present invention.

Fig. 11 is a perspective view of a multi-set structure of an escalator-type bladeless wind power generation system according to some embodiments of the present invention.

Fig. 12 is a horizontal state diagram of an escalator-type bladeless wind turbine system according to some embodiments of the present invention.

Fig. 13 is an installation diagram of an escalator-type bladeless wind turbine system according to some embodiments of the present invention.

Fig. 14 is an installation schematic diagram of an escalator-type bladeless wind power generation system according to some embodiments of the present invention.

In the figure: 1. flexible driving medium, 2, bar cloth, 3, horizontal pole, 4, drive roller, 5, support, 6, pivot, 7, gear, 8, deep bead, 9, generator, 10, gearbox, 11, bevel gear commutator, 12, take drive assembly, 13, base, 14, stand, 15, oblique stay cord.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 6, an escalator type bladeless wind power generation system in an embodiment of a first aspect of the present invention includes a flexible transmission member 1, a strip-shaped fabric 2, a cross bar 3, two transmission rollers 4 and a support 5, wherein the support 5 is rotatably connected with the two transmission rollers 4, one of the transmission rollers 4 is disposed obliquely above the other transmission roller 4, the two transmission rollers 4 are wound with the flexible transmission member 1, the flexible transmission member 1 is provided with a plurality of cross bars 3, the plurality of cross bars 3 are disposed at equal intervals, the strip-shaped fabric 2 is fixed on the flexible transmission member 1, adjacent cross bars 3 form rectangular grids, the length of the strip-shaped fabric 2 in each rectangular grid is greater than the interval between the adjacent cross bars 3, and the strip-shaped fabric 2 in each rectangular grid is in a drooping arc-shaped pocket structure.

Alternatively, as shown in fig. 1 to 6, in some embodiments, the flexible transmission 1 is any one of a chain, a timing belt, or a rope.

In the above embodiments, it should be noted that, in the present embodiment, a high-strength strip-shaped fabric is fixed on a chain (or a synchronous belt or a rope), so as to replace a blade of a conventional wind power generation system, and the strip-shaped fabric is surrounded by two sets of toothed transmission rollers 4 through the chain (or the synchronous belt or the rope) to form a closed shape like a runway, which has a shape similar to that of an escalator or a conveyor belt; in order to increase the windward side and the wind resistance of the cloth, the cloth is divided into a plurality of long grids by a cross rod 3, the length of the cloth in each long grid is larger than the side length of the long grid and is in a drooping pocket shape, and the aim is to enable the cloth to form an arc pocket shape under the blowing of wind power so as to increase the wind resistance; specifically, a cross bar 3 with certain strength can be fixed on two chains (or a synchronous belt and a rope), and then long-strip cloth is fixed on the cross bar 3; the strip cloth 2 still appears drooping form under the condition of chain tensioning to can live in the wind with, strip cloth 2 can form the pocket form similar to the sail under the blowing of wind.

It should be noted that the strip-shaped cloth 2 is necessary to droop between two adjacent cross bars 3, otherwise, a pocket shape cannot be formed to increase wind resistance; so, the motion of bar cloth 2 of wind-force drive slope in wind direction, the motion of 2 pulling chains of bar cloth, chain pulling gyro wheel rotate, and the gyro wheel rotates and can drive generator 9 electricity generations.

The beneficial effects of the above alternative embodiment are: compared with the traditional wind power generation system, the wind power generation system has the main advantages that the cost is reduced, and the unique pocket-shaped cloth design increases the conversion efficiency of wind energy; the strip-shaped cloth 2, the chain and the cross rod 3 replace the paddle of the traditional wind power generation system, so that the cost of the system is greatly reduced; the strip-shaped cloth 2, the chains and the cross rods 3 replace paddles of a traditional wind power generation system, so that the weight of the system is greatly reduced, the height of the system is greatly reduced, the stress of the upright posts is reduced, and the cost of the upright posts and the foundation can be reduced; by adopting a paddle-free system, the stability of the upright post can be enhanced by utilizing the stay ropes, so that the structural weight and the cost are reduced; the system can be deployed on the roof of an existing building, so that the cost of foundation and land can be reduced; the strip-shaped cloth 2 is used as a wind-receiving material, and the wind-receiving efficiency of the unique pocket-shaped windward side is higher than that of the slender blade.

Alternatively, as shown in fig. 1 to 6, in some embodiments, the included angle between the wind-receiving surface of the strip-shaped cloth 2 and the horizontal wind direction is 30 ° to 60 °.

In the above alternative embodiment, it should be noted that the strip cloth 2 mounted on the chain (synchronous belt or rope) and the cross bar 3 is mounted around two pairs of toothed transmission rollers 4, and the teeth on the transmission rollers 4 are matched with the slots on the chain, so as to keep the two chains synchronous; the bracket 5 supports two pairs of transmission rollers 4 with teeth, so that the strip-shaped cloth 2 forms a certain angle with the wind direction.

The beneficial effects of the above alternative embodiment are: through the arrangement of the angle, the component force of wind power can drive the strip-shaped cloth 2 to rotate around the roller of the transmission roller 4.

Optionally, as shown in fig. 1 to 6, in some embodiments, a wind deflector 8 is further included, the wind deflector 8 surrounds the outer periphery of the bracket 5, and the strip cloth 2 rotated to the lower side is shielded by the wind deflector 8.

In the above optional embodiment, it should be noted that, since wind can bypass the front strip-shaped cloth 2 stressed against the wind and generate an acting force on the strip-shaped cloth 2 that turns to the back, so as to hinder the rotation of the system, the strip-shaped cloth 2 that turns to the back needs to be shielded by a wind shield; the wind shield 8 is needed to be designed to shield the strip-shaped cloth 2 which turns to the back, namely, the wind can only blow the strip-shaped cloth 2 facing the wind, and the acting force for turning the strip-shaped cloth 2 to the back is very small.

The beneficial effects of the above alternative embodiment are: through above-mentioned setting, showing the efficiency of lift system.

Alternatively, as shown in fig. 7 to 8, in some embodiments, the driving roller 4 includes a rotating shaft 6 and a gear 7, the two ends of the rotating shaft 6 are respectively fixed with the gear 7, the rotating shaft 6 of the driving roller 4 is rotatably connected to the bracket 5, and the flexible driving member 1 is disposed around the gears 7 of the two driving rollers 4.

Optionally, as shown in fig. 9 or fig. 10, in some embodiments, a generator 9 is further included, and a power input shaft of the generator 9 is in transmission connection with the rotating shaft 6.

Optionally, as shown in fig. 9 or fig. 10, in some embodiments, a gearbox 10 is further included, a power input shaft of the generator 9 is in transmission connection with a power output shaft of the gearbox 10, and a power input shaft of the gearbox 10 is in transmission connection with the rotating shaft 6.

Alternatively, as shown in fig. 9 to 10, in some embodiments, the power input shaft of the gearbox 10 is in driving connection with the rotating shaft 6 via a bevel gear commutator 11 or a belt drive assembly 12.

In the above optional embodiment, it should be noted that, in the above embodiment, the windmill is required to output mechanical energy to the generator 9 for generating electricity, the output form may be various, and the helical gear is mounted on the rotating shaft 6 to drive the gearbox 10, and then the gearbox 10 drives the generator 9; a belt pulley can also be arranged on the rotating shaft 6, a gear box 10 is driven by a belt, and the gear box 10 drives the generator 9.

Alternatively, as shown in fig. 11-13, in some embodiments, multiple escalator-type bladeless wind power generation systems are stacked side-by-side.

In the above alternative embodiment, it should be noted that, for a larger wind power generation system, a layout in which a plurality of sets of devices are stacked side by side may be adopted, and the number of the transmission rollers 4 may also be increased as required, so that the chain does not sag greatly.

Optionally, as shown in fig. 12 and 14, in some embodiments, the wind turbine further includes a base 13, a vertical column 14, and diagonal ropes 15, the base 13 is disposed at the top end of the vertical column 14, the outer side wall of the vertical column 14 is connected to the ground through the plurality of diagonal ropes 15, and the escalator type bladeless wind turbine system is disposed on the top of the base 13 in a horizontal manner.

In the above optional embodiments, it should be noted that a horizontal type manner, a two-set back-to-back or a multi-set back-to-back layout manner is adopted, and the layout symmetry is good.

The wind power generation system of the above embodiment may be installed on the roof of a building, or may be supported by a vertical column 14, which may be fixed by a stay cable 15.

The technical problem solved by the above embodiment is as follows:

1. a brand new wind energy utilization mode is adopted, the traditional vertical axis and horizontal axis wind power generation mode is thoroughly changed, the system cost is reduced, and meanwhile, the utilization rate of wind energy is improved.

2. A brand-new paddle-free mode with the appearance similar to that of an escalator is adopted, and a wind receiving system which is formed by a plurality of cloth grids and is similar to that of the escalator or a conveyor belt replaces the paddle of a traditional wind power generation system, so that the cost of expensive paddles is changed into the cost of cloth, and the cost of the system is greatly reduced.

3. Because the weight of the cloth is far lighter than that of the paddle, the wind receiving surface is concentrated, the wind receiving efficiency is high, and the paddle does not need to be made thin and long like the traditional wind power generation system, the system with the same power does not need the upright post and the foundation support with high mechanical strength if the scheme is adopted, and the upright post cost and the foundation cost are reduced.

4. The wind power generation system is not provided with slender blades, so that the stand column can be reinforced by adopting the stay ropes, and the cost of the stand column and the foundation is reduced.

5. The wind power generation system can be deployed on the roof of a building, and most of the stand column cost, the foundation cost and the land cost can be saved.

6. The wind-receiving surface of the conveyor belt type bladeless wind power generation system is similar to the bag-shaped wind-receiving surface of a sail, and the wind-receiving effect is far higher than that of a common blade, so that the efficiency of the system is improved;

7. the cost of the wind power generation system can be greatly reduced, and the utilization of clean energy can be further accelerated.

The key points of the above embodiment are:

1. the cloth is adopted as a wind-receiving material and is arranged on the chain and the cross bar to form a continuous and movable pocket-shaped structure.

2. The cloth with the continuous bag-shaped structure is arranged on two or more pairs of rollers, so that the cloth can drive the rollers to rotate through chains under the drive of wind power, and wind energy is converted into mechanical energy.

3. The cloth turned to the rear needs to be shielded by a wind shield so as to prevent wind around the rear from blowing the cloth turned to the rear, and the efficiency of the system is reduced.

4. Multiple wind-receiving units may be mounted back-to-back or stacked to form a larger system.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial changes in the technical content.

Claims (10)

1. An escalator type paddle-free wind power generation system is characterized by comprising a flexible transmission part (1), strip-shaped cloth (2), cross rods (3), transmission rollers (4) and a support (5), wherein the support (5) is rotatably connected with two transmission rollers (4), one transmission roller (4) is arranged above the other transmission roller (4), the flexible transmission part (1) is wound on the two transmission rollers (4), the flexible transmission part (1) is provided with a plurality of cross rods (3), the cross rods (3) are arranged at equal intervals, the strip-shaped cloth (2) is fixed on the flexible transmission part (1), the adjacent cross rods (3) form rectangular grids, the length of the strip-shaped cloth (2) in each rectangular grid is larger than the distance between the adjacent cross rods (3), each strip-shaped cloth (2) in the long square is of a drooping arc-shaped pocket-shaped structure.

2. Escalator-type bladeless wind power generation system according to claim 1, wherein the flexible transmission (1) is any one of a chain, a timing belt or a rope.

3. Escalator-type bladeless wind power generation system according to claim 1, characterized in that the angle between the wind-receiving surface of the strip-shaped cloth (2) and the horizontal wind direction is between 30 ° and 60 °.

4. Escalator-type bladeless wind power generation system according to claim 1, further comprising a wind deflector (8), said wind deflector (8) surrounding the outer circumference of said support (5), said strip (2) turned to the lower side being concealed by said wind deflector (8).

5. An escalator-type bladeless wind power generation system according to claim 1, wherein the driving rollers (4) comprise a rotating shaft (6) and a gear (7), the gear (7) is fixed to each end of the rotating shaft (6), the rotating shaft (6) of the driving rollers (4) is rotatably connected to the support (5), and the flexible transmission member (1) is arranged around the gears (7) of the two driving rollers (4).

6. The escalator-type bladeless wind power generation system according to claim 5, further comprising a generator (9), wherein a power input shaft of the generator (9) is in transmission connection with the rotating shaft (6).

7. The escalator-type bladeless wind power generation system according to claim 6, further comprising a gearbox (10), wherein a power input shaft of the generator (9) is in transmission connection with a power output shaft of the gearbox (10), and a power input shaft of the gearbox (10) is in transmission connection with the rotating shaft (6).

8. Escalator-type bladeless wind power generation system according to claim 7, wherein the power input shaft of the gearbox (10) is in driving connection with the rotor shaft (6) via a bevel gear commutator (11) or a belt drive assembly (12).

9. The escalator-type bladeless wind power generation system according to claim 1, wherein a plurality of escalator-type bladeless wind power generation systems are arranged side by side in an overlapping manner.

10. The escalator-type bladeless wind power generation system according to claim 1, further comprising a base (13), a column (14) and diagonal ropes (15), wherein the base (13) is disposed at the top end of the column (14), the outer side wall of the column (14) is connected to the ground through the plurality of diagonal ropes (15), and the escalator-type bladeless wind power generation system is disposed at the top of the base (13) in a horizontal manner.

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