CN117432576A - Winding umbrella type wind energy conversion method and power generation system - Google Patents

Abstract

The invention relates to the field of high-altitude wind energy, and discloses a winding umbrella-shaped wind energy conversion method and a power generation system. The first cable of the method is tied to the edge of the umbrella cover of the acting umbrella; the second cable is tied to the top of the umbrella cover of the acting umbrella. In the power generation stage, the high-altitude wind energy drives the acting umbrella to ascend, the first cable and the second cable respectively pull the first winding drum and the second winding drum to rotate, and the first winding drum or the second winding drum drives the generator to generate power; in the umbrella closing stage, the acting umbrella rises to a first height, the first cable stops paying off the ropes later than the second cable, and the edge of the umbrella cover continues to rise and turns upwards to be closed; in the recovery stage, the motor drives the first winding drum and the second winding drum to rotate simultaneously, and the first cable and the second cable pull the acting umbrella to descend; and in the stage of opening the umbrella, the acting umbrella descends to a second height, the first cable stops closing the rope later than the second cable, and the edge of the umbrella cover continuously descends and turns downwards to be opened. The scheme is used for solving the opening and closing problems of the umbrella-shaped wind energy conversion device, and achieves the effects of simplicity, high efficiency and reliability.

Description

Winding umbrella type wind energy conversion method and power generation system

Technical Field

The invention relates to the field of high-altitude wind energy, in particular to a winding umbrella-type wind energy conversion method and a power generation system.

Background

The high-altitude wind energy is a renewable clean energy source with wide distribution and rich reserves. Studies have indicated that: the wind energy at high altitude is proportional to the cube of the wind speed, and in general, the wind speed is increased by 1 time and the wind energy is increased by 8 times, so that the wind energy at high altitude can be tens of times or even hundreds of times higher than the wind energy at ground level. In the ideal high-altitude position, the theoretical power generation time of high-altitude wind power can reach 95% of annual time, the annual power generation time is more than 8200 hours, and the annual power generation time of the low-power 10 megawatt high-altitude wind power generation system is more than 5000 hours. Therefore, the high-altitude wind power generation has the advantages of high average energy density, wide regional distribution, high stability, low unit cost and the like.

One common type of high altitude wind power generation system includes an umbrella-type wind energy conversion device (or a high altitude kite), a main cable, a hoist, and a generator. The umbrella-shaped wind energy conversion device is opened in the air and kept stable, the main cable is lifted and pulled under the action of high-altitude wind power, and when the main cable is pulled up, the winch on the ground is driven to rotate, so that the generator is driven to generate electricity, and the process that wind energy is converted into mechanical energy and the mechanical energy is converted into electric energy is realized. The umbrella-shaped wind energy conversion device is required to be closed after rising to the ending height, then the main cable is wound by the winding machine, the umbrella-shaped wind energy conversion device is pulled to descend to the starting height, and then the wind energy conversion device is opened in the air again, and the next round of power generation process is carried out, so that the wind energy conversion device reciprocates. Reference is made in particular to the Chinese patent CN 102220938B-umbrella type wind power plant and wind power system.

The umbrella-shaped wind energy conversion device needs to be repeatedly opened and closed, and a simple, efficient and reliable opening and closing mode is particularly important. Chinese patent CN 106523273B-a double-driving umbrella type wind energy conversion device and its opening and closing method, the device comprises: a cable; a stop fixed to the cable; an umbrella body with the top center sleeved on the cable; the first driver is connected with the center of the top of the umbrella body; a second driver located between the stop and the first driver; the second driver is connected with the umbrella body through an umbrella rope, and the umbrella rope is connected with the edge of the umbrella body; the second driver and/or the stop are provided with a locking mechanism which can lock the second driver and the stop. The scheme mainly adopts two drivers to move back and forth on the mooring rope to realize the opening and closing of the umbrella-shaped wind energy conversion device, the opening and closing process of the umbrella body can be realized by only a few actions, and the wind force effect is utilized in the opening and closing process, so that the electric energy consumption of the drivers is greatly reduced. Similarly, there is chinese patent CN 106523274B-a single-drive umbrella-type wind energy conversion device and its opening and closing method. Since the drive of the above solution needs to be moved back and forth on the cable and kept stationary, there is a high demand for reliability of the drive construction and high demands for strength and wear resistance of the cable.

Disclosure of Invention

The invention aims to overcome at least one defect of the prior art, and provides a winch umbrella-shaped wind energy conversion method and a power generation system, which are used for solving the opening and closing problems of an umbrella-shaped wind energy conversion device and achieving the effects of simplicity, high efficiency and reliability.

According to the technical scheme, in the winch umbrella type wind energy conversion method, one end of a first cable is wound on a first winding drum, and the other end of the first cable is tied to the edge of an umbrella face of a acting umbrella; one end of the second cable is wound on the second winding drum, and the other end of the second cable is tied on the top of the umbrella cover of the acting umbrella; comprising the following stages:

in the power generation stage, the high-altitude wind energy drives the acting umbrella to ascend, the first cable and the second cable are used for paying off, the first cable pulls the first winding drum to rotate, the second cable pulls the second winding drum to rotate, and the first winding drum or the second winding drum drives the generator to generate power;

in the umbrella closing stage, the acting umbrella is lifted to a first height, the first cable keeps releasing the ropes, the second cable stops releasing the ropes, the edge of the umbrella cover of the acting umbrella continues to lift and fold upwards, and the acting umbrella is closed;

in the recovery stage, the motor drives the first winding drum and the second winding drum to rotate simultaneously, the first cable and the second cable are wound, the first winding drum winds the first cable, the second winding drum winds the second cable, and the first cable and the second cable pull the acting umbrella to descend;

in the stage of opening the working umbrella, the working umbrella descends to a second height, the first cable keeps the rope to be retracted, the second cable stops the rope to be retracted, the edge of the umbrella cover of the working umbrella continues to descend and turns down, and the working umbrella is opened.

In the scheme, the acting umbrella is traction-controlled by the first cable and the second cable.

In the power generation stage, wind power drives the acting umbrella to ascend, and the acting umbrella pulls the first cable and the second cable to ascend; the first cable pulls the first drum to rotate, and the second cable pulls the second drum to rotate; the first winding drum drives the generator to generate power, and the second winding drum keeps idling; or conversely, the second winding drum drives the generator to generate electricity, and the first winding drum keeps idling.

In the umbrella closing stage, the acting umbrella rises to a first height, the second winding drum stops rotating, the second cable stops rope releasing and tightens the top of the umbrella cover of the acting umbrella; the edge of the umbrella cover of the wind driven acting umbrella continues to ascend and turn upwards, the first cable keeps releasing the rope, and the first winding drum keeps rotating until the acting umbrella is closed.

In the recovery stage, the motor is started and drives the first winding drum and the second winding drum to rotate simultaneously, the first winding drum winds the first cable, and the second winding drum winds the second cable; the first cable and the second cable pull the closed acting umbrella to descend.

In the stage of opening the umbrella, the acting umbrella descends to a second height, the second winding drum stops rotating, and the second cable stops winding; the top of the umbrella surface of the acting umbrella is driven by wind power to move upwards, meanwhile, the motor keeps driving the first winding drum to rotate, the first cable keeps the rope to be retracted and pulls the edge of the umbrella surface of the acting umbrella to continuously descend and fold downwards, and the acting umbrella is opened. After the acting umbrella is opened, the motor is closed, the first winding drum stops rotating, and the first cable stops winding. Finally, the working umbrella repeats the four stages in sequence, and the high-altitude wind energy continuous power generation can be realized. And in the process that the acting umbrella rises from the second height to the first height, the engine is pulled to generate electricity.

According to the scheme, the traditional combination work of the winding drum, the generator and the motor is utilized through the differential rope collecting time and the differential rope releasing time between the first cable positioned at the edge of the umbrella surface and the second cable positioned at the top of the umbrella surface, so that the acting umbrella can realize four-stage actions of opening and closing the umbrella, generating and recovering by means of wind power, the opening and closing problem of the umbrella-shaped wind energy conversion device is solved, and the effects of simplicity, high efficiency and reliability are achieved.

Preferably, the first drum, the second drum, the generator and the motor are all fixed on a main cable; the generator generates electricity and stores energy in the air, and transmits the energy to the ground or supplies power to the motor through a cable. In the scheme, the umbrella-shaped wind energy conversion device is formed by the acting umbrella, the first cable, the second cable, the first winding drum, the second winding drum, the generator and the motor. Compared with the form of power generation of the generator on the ground, the form of power generation in the air can integrate the umbrella-shaped wind energy conversion device into a small power generation unit which works independently, so as to supply power for other equipment on a main cable and other types of umbrella-shaped wind energy conversion devices; the umbrella-shaped wind energy conversion devices can be connected in series on the main cable, so that wind energy in different height areas is fully utilized, and the total power of wind energy power generation is improved; in addition, each umbrella-shaped wind energy conversion device can work independently, so that the recovery of acting umbrellas by using a main cable rope is avoided, the electric energy consumption is reduced, and the wind energy generation efficiency is further improved.

Further, the umbrella cover edge of the acting umbrella is tied to the first cable; one of the two sections is connected to the main cable through a roller, and the acting umbrella ascends and descends along the main cable. In the scheme, the edge of the umbrella cover is fixedly connected with a first cable, one part of the first cable is movably connected with a main cable, so that the movement of the acting umbrella along the main cable can be limited, and a good air posture can be kept; on the other hand, the working umbrella can rotate around the main cable rope under the action of wind force when the umbrella is opened and closed, and the opening and closing are easier, more efficient and more reliable. The roller wheels are used for movable connection, so that the abrasion between the edge of the umbrella cover of the acting umbrella and the main cable can be reduced.

Preferably, when the first drum fully pays out the first cable, the first cable stops paying out; when the first winding drum winds up to the rope winding limit, the first mooring rope stops winding up; stopping paying out the second cable when the second reel completely pays out the second cable; and when the second winding drum winds to the rope winding limit, the second mooring rope stops winding. In the scheme, the first winding drum and the second winding drum are not provided with brake devices, and the first cable and the second cable can reach the rope releasing limit in sequence by limiting the length conditions of the first cable and the second cable, so that the rope releasing is stopped, and the acting umbrella is closed; and the rope can be received and limited in sequence, and the rope is stopped to be received, so that the acting umbrella is opened. After the acting umbrella is opened, the power generation stage is immediately carried out, and the automatic circulation is carried out.

According to the winch umbrella-shaped wind energy conversion method, the scheme also provides a winch umbrella-shaped wind energy power generation system which comprises a double-drum cable winch device. The device comprises a winch body, the first winding drum, the second winding drum, a winch rotating shaft and a switching assembly, wherein the first winding drum, the second winding drum, the winch rotating shaft and the switching assembly are arranged on the winch body; the first winding drum, the switching assembly and the second winding drum are sequentially sleeved on the winding rotating shaft in parallel; when the switching component is switched to a first state, the first winding drum and the winding rotating shaft synchronously rotate; when the switching component is switched to a second state, the second winding drum and the winding rotating shaft synchronously rotate; when the switching component is switched to an intermediate state, the first winding drum, the second winding drum and the winding rotating shaft synchronously rotate; the winding rotating shaft is connected with the generator and the motor.

Preferably, the switching assembly comprises a first gear, a second gear, a third gear, a toothed ring, a fork and a linear drive; the first gear is fixed on one side of the first winding drum, the second gear is fixed on one side of the second winding drum, the third gear is fixed on the middle part of the winding rotating shaft, and the toothed ring is sleeved outside the third gear; the linear driving piece drives the toothed ring to move by pushing the shifting fork, so that the first gear, the toothed ring and the third gear are meshed with each other or the second gear, the toothed ring and the third gear are meshed with each other or the first gear, the second gear, the toothed ring and the third gear are meshed with each other.

Further, the linear driving member includes a switching motor and a link mechanism; the switching motor is fixed on the winding body; the connecting rod mechanism is connected with the switching motor and the shifting fork and is used for converting the rotary motion of the switching motor into the linear motion of the shifting fork.

Preferably, the apparatus further comprises a transmission assembly; the generator and the motor are fixed on the winch body; the transmission assembly is arranged at one end of the winding rotating shaft and is connected with the generator, the motor and the winding rotating shaft.

Further, the transmission assembly comprises a fourth gear and a fifth gear which are meshed with each other, the fourth gear is connected with one end of the winding rotating shaft, the fifth gear is connected with one end of the generator and one end of the motor respectively, and the number of teeth of the fourth gear is larger than that of the fifth gear.

Optionally, the winding machine further comprises a guiding component, wherein the guiding component is arranged at the in-out position of the cable on the winding body, and the guiding component is used for guiding and correcting the posture of the cable when the first winding drum or the second winding drum winds and unwinds.

Compared with the prior art, the invention has the beneficial effects that:

according to the scheme, the first cable positioned at the edge of the umbrella surface and the second cable positioned at the top of the umbrella surface are used for differentially winding and unwinding the ropes, and the combined work of the traditional winding drum, the generator and the motor is utilized, so that the acting umbrella can realize four-stage actions of opening and closing the umbrella, generating and recovering by means of wind power, the opening and closing problem of the umbrella-shaped wind energy conversion device is solved, and the effects of simplicity, high efficiency and reliability are achieved.

According to the scheme, the first winding drum and the second winding drum respectively contain two cables, and under the state switching of the switching assembly, the first winding drum and the second winding drum are timely in power coupling with the winding rotating shaft, so that the first winding drum and the second winding drum respectively or simultaneously wind and unwind the cables of the first winding drum and the second winding drum respectively.

Drawings

Fig. 1 is a schematic diagram of the power generation stage of the present invention.

FIG. 2 is a schematic diagram of the umbrella closing stage of the present invention.

FIG. 3 is a schematic diagram of the recovery stage of the present invention.

Fig. 4 is a schematic diagram of the umbrella opening stage of the present invention.

Fig. 5 is a structural diagram of embodiment 1 of the present invention.

Fig. 6 is a left side view of embodiment 1 of the present invention.

Fig. 7 is a schematic diagram of a first state of embodiment 1 of the present invention.

Fig. 8 is a second state diagram of embodiment 1 of the present invention.

Fig. 9 is a schematic diagram showing an intermediate state of embodiment 1 of the present invention.

Fig. 10 is a perspective view of embodiment 1 of the present invention.

Reference numeral description 1: the working umbrella 10 comprises a main rope 20, a first rope 21, a second rope 22, a roller 30, a lifting force guiding body 40, a first height H1 and a second height H2.

Reference numeral description 2: the hoisting machine comprises a hoisting body 110, a first winding drum 120, a second winding drum 130, a hoisting rotating shaft 140, a switching assembly 150, a first gear 151, a second gear 152, a third gear 153, a toothed ring 154, a shifting fork 155, a switching motor 156, a link mechanism 157, a power assembly 160, a generator 161, a motor 162, a transmission assembly 170, a fourth gear 171, a fifth gear 172, a guide assembly 180, a vertical roller 181 and a horizontal roller 182.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the invention. For better illustration of the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

As shown in fig. 1 to 4, in the present solution, in a windlass umbrella-type wind energy conversion method, one end of a first cable 21 is winded on a first drum 120, and the other end is tied to the edge of the umbrella cover of a working umbrella 10; one end of the second cable 22 is wound on the second drum 130, and the other end is tied on the top of the umbrella surface of the acting umbrella 10; comprising the following stages:

in the power generation stage, the high-altitude wind energy drives the acting umbrella 10 to ascend, the first cable 21 and the second cable 22 are used for paying off, the first cable 21 pulls the first winding drum 120 to rotate, the second cable 22 pulls the second winding drum 130 to rotate, and the first winding drum 120 or the second winding drum 130 drives the generator to generate power;

in the umbrella closing stage, the working umbrella 10 rises to a first height H1, the first cable 21 keeps releasing the ropes, the second cable 22 stops releasing the ropes, the edge of the umbrella cover of the working umbrella 10 continues to rise and turns upwards, and the working umbrella 10 is closed;

in the recovery stage, the motor drives the first drum 120 and the second drum 130 to rotate simultaneously, the first cable 21 and the second cable 22 are wound up, the first drum 120 winds up the first cable 21, the second drum 130 winds up the second cable 22, and the first cable 21 and the second cable 22 pull the acting umbrella 10 to descend;

in the stage of opening the umbrella, the acting umbrella 10 descends to the second height H2, the first cable 21 keeps the rope folding, the second cable 22 stops the rope folding, the edge of the umbrella cover of the acting umbrella 10 continues to descend and turns downwards, and the acting umbrella 10 is opened.

In this embodiment, the work umbrella 10 is traction-controlled by a first cable 21 and a second cable 22.

In the power generation stage, wind power drives the acting umbrella 10 to ascend, and the acting umbrella 10 pulls the first cable 21 and the second cable 22 to ascend; the first cable 21 pulls the first drum 120 to rotate and the second cable 22 pulls the second drum 130 to rotate; the first winding drum 120 drives the generator to generate electricity, and the second winding drum 130 keeps idling; or conversely, the second winding drum 130 drives the generator to generate electricity, and the first winding drum 120 keeps idling.

In the umbrella closing stage, the working umbrella 10 rises to the first height H1, the second winding drum 130 stops rotating, the second cable 22 stops rope unreeling and tightens the top of the umbrella cover of the working umbrella 10; the edge of the umbrella cover of the wind driven acting umbrella 10 continues to rise and fold upwards, the first cable 21 keeps the rope unreeling, and the first drum 120 keeps rotating until the acting umbrella 10 is closed.

In the recovery stage, the motor is started to drive the first drum 120 and the second drum 130 to rotate simultaneously, the first drum 120 winds the first cable 21, and the second drum 130 winds the second cable 22; the first cable 21 and the second cable 22 simultaneously pull the closed acting umbrella 10 to descend.

In the stage of opening the umbrella, the acting umbrella 10 descends to the second height H2, the second drum 130 stops rotating, and the second cable 22 stops winding; the top of the umbrella surface of the acting umbrella 10 is driven to move upwards by wind force, meanwhile, the motor keeps driving the first winding drum 120 to rotate, the first cable 21 keeps winding and pulls the edge of the umbrella surface of the acting umbrella 10 to continuously descend and fold downwards, and the acting umbrella 10 is opened. After the umbrella 10 is opened, the motor is turned off, the first drum 120 stops rotating, and the first cable 21 stops winding. Finally, the working umbrella 10 repeats the four stages in sequence, and can realize continuous power generation of high-altitude wind energy.

According to the scheme, the four-stage actions of opening and closing the umbrella, generating and recovering the acting umbrella 10 by means of wind force are realized by utilizing the combined work of the traditional winding drum, the traditional generator and the traditional motor through the differentiated rope collecting time and the differentiated rope releasing time between the first rope 21 positioned at the edge of the umbrella cover and the differentiated second rope 22 positioned at the top of the umbrella cover, so that the opening and closing problem of the umbrella-shaped wind energy conversion device is solved, and the effects of simplicity, high efficiency and reliability are achieved.

Preferably, the first drum 120, the second drum 130, the generator and the motor are all fixed to the main cable 20; the generator generates electricity and stores energy in the air, and transmits the energy to the ground or supplies power to the motor through a cable. In this embodiment, the umbrella 10, the first cable 21, the second cable 22, the first drum 120, the second drum 130, the generator and the motor form an umbrella-type wind energy conversion device. Compared with the form of power generation of the generator on the ground, the form of power generation in the air can integrate the umbrella-shaped wind energy conversion device into a small power generation unit which works independently, so as to supply power for other equipment on the main cable rope 20 and other types of umbrella-shaped wind energy conversion devices; a plurality of umbrella-shaped wind energy conversion devices can be connected in series on the main cable 20, so that wind energy in different height areas can be fully utilized, and the total power of wind energy power generation is improved; in addition, each umbrella-shaped wind energy conversion device can work independently, so that the recovery of the acting umbrella 10 by using the main cable 20 is avoided, the electric energy consumption is reduced, and the wind energy generation efficiency is further improved.

Further, the umbrella cover edge of the working umbrella 10 is tied to the first cable 21; one of which is connected to the main rope 20 through a roller 30, and the working umbrella 10 is lifted and lowered along the main rope 20. In the scheme, the edge of the umbrella cover is fixedly connected with a first cable 21, one part of the first cable is movably connected with a main cable 20, so that the movement of the acting umbrella 10 along the main cable 20 can be limited, and a good air posture can be kept; on the other hand, when the working umbrella 10 is opened or closed, the working umbrella can rotate around the main cable rope 20 under the action of wind force, and the opening and the closing are easier, more efficient and more reliable. By using the roller 30 for movable connection, the abrasion between the edge of the umbrella surface of the acting umbrella 10 and the main cable 20 can be reduced.

Preferably, when all of the first drum 120 pays out the first cable 21, the first cable 21 stops paying out; when the first winding drum 120 winds up to the rope winding limit, the first mooring rope 21 stops winding up; when the second drum 130 completely pays out the second cable 22, the second cable 22 stops paying out; when the second drum 130 is wound up to the rope winding limit, the second rope 22 stops winding up. In this solution, the first drum 120 and the second drum 130 may not be provided with a braking device, and the first cable 21 and the second cable 22 may reach the rope releasing limit successively by limiting the length of the first cable 21 and the second cable 22, stopping rope releasing, and realizing the closing of the working umbrella 10; and the rope collecting limit can be reached successively, the rope collecting is stopped, and the acting umbrella 10 is opened. After the acting umbrella 10 is opened, the power generation stage is immediately carried out, and the cycle is automatically carried out.

In some embodiments, in the power generation stage, the high-altitude wind energy drives the acting umbrella to ascend, the first cable and the second cable are used for paying off, the first cable pulls the first drum 120 to rotate, the second cable pulls the second drum 130 to rotate, and the first drum 120 and the second drum 130 respectively drive the generator to generate power.

In some embodiments, one end of the first cable is connected to a canopy edge of the work umbrella by a plurality of strings. The center of the top of the umbrella cover of the acting umbrella is connected to the main cable through a roller or a sleeve, and the acting umbrella ascends and descends along the main cable.

Example 1

As shown in fig. 5 to 10, the present embodiment is a double drum cable winding device including a winding body 110, and a first winding drum 120, a second winding drum 130, a winding shaft 140 and a switching assembly 150 mounted on the winding body 110. The first winding drum 120, the switching assembly 150 and the second winding drum 130 are sequentially sleeved on the winding rotating shaft 140 in parallel; when the switching assembly 150 is switched to the first state, the first winding drum 120 and the winding rotating shaft 140 rotate synchronously; when the switching assembly 150 is switched to the second state, the second winding drum 130 rotates synchronously with the winding rotating shaft 140; when the switching assembly 150 is switched to the intermediate state, the first and second drums 120 and 130 are rotated in synchronization with the winding shaft 140.

In this embodiment, the first reel 120 and the second reel 130 may idle on the winding shaft 140, respectively. The switching assembly 150 has three states, and in the first state, the switching assembly 150 is connected with the first winding drum 120, so that the first winding drum 120 and the winding rotating shaft 140 synchronously rotate, and the first winding drum 120 independently winds and unwinds the first cable; in the second state, the switching assembly 150 is connected with the second drum 130, so that the second drum 130 and the winding rotating shaft 140 rotate synchronously, and the second drum 130 independently winds and unwinds the second cable; in the intermediate state, the switching assembly 150 is simultaneously connected to the first drum 120 and the second drum 130, so that the first drum 120 and the second drum 130 rotate synchronously with the winding shaft 140, and the first drum 120 and the second drum 130 simultaneously reel the first cable and the second cable. In the scheme, the first winding drum 120 and the second winding drum 130 respectively contain two cables, and under the state switching of the switching assembly 150, the first winding drum 120 and the second winding drum 130 are timely and dynamically coupled with the winding rotating shaft 140, so that the first winding drum 120 and the second winding drum 130 respectively or simultaneously reel the cables.

As shown in fig. 7 to 9, preferably, the switching assembly 150 includes a first gear 151, a second gear 152, a third gear 153, a gear ring 154, a fork 155, and a linear driving member; the first gear 151 is fixed on one side of the first winding drum 120, the second gear 152 is fixed on one side of the second winding drum 130, the third gear 153 is fixed on the middle part of the winding shaft 140, and the toothed ring 154 is sleeved outside the third gear 153; the linear driving member moves the toothed ring 154 by pushing the fork 155, so that the first gear 151, the toothed ring 154, the third gear 153 are meshed with each other or the second gear 152, the toothed ring 154, the third gear 153 are meshed with each other or the first gear 151, the second gear 152, the toothed ring 154, the third gear 153 are meshed with each other.

In this scheme, the first gear 151 rotates synchronously with the first drum 120, the second gear 152 rotates synchronously with the second drum 130, the third gear 153 rotates synchronously with the winding shaft 140, and the toothed ring 154 can mesh with the first gear 151, the second gear 152 or the third gear 153. When the shift fork 155 shifts the toothed ring 154 to the first position, the first gear 151, the toothed ring 154 and the third gear 153 are engaged with each other, so that the first winding drum 120 and the winding shaft 140 rotate synchronously. When the shift fork 155 shifts the toothed ring 154 to the second position, the second gear 152, the toothed ring 154 and the third gear 153 are engaged with each other, so that the second reel 130 and the winding shaft 140 rotate synchronously. When the shift fork 155 shifts the toothed ring 154 to the intermediate position, the first gear 151, the second gear 152, the toothed ring 154 and the third gear 153 are engaged with each other, so that the first winding drum 120, the second winding drum 130 and the winding shaft 140 rotate synchronously. The switching component 150 of the scheme realizes the power coupling of the first winding drum 120, the second winding drum 130 and the winding rotating shaft 140 in a way of poking the shifting fork 155 and meshing gears, and has the advantages of high reliability and high transmission efficiency.

In other embodiments, the switching assembly may be an existing multi-plate electrically controlled clutch, wherein a plurality of shaft ends are respectively connected to the first winding drum 120, the second winding drum 130 and the winding shaft.

Further, the linear driving member includes a switching motor 156 and a link mechanism 157; the switching motor 156 is fixed to the winding body 110; the link mechanism 157 connects the switching motor 156 and the fork 155, and the link mechanism 157 is used for converting the rotational motion of the switching motor 156 into the linear motion of the fork 155. The switching motor 156 is preferably a stepping motor to achieve precise position control of the fork 155. The link mechanism 157 is a crank block mechanism.

In other embodiments, the linear driving member may be an existing linear motor or an electric cylinder, and the output shaft thereof is directly connected to the fork.

Further, the surface of the toothed ring 154 is provided with a ring groove, and the shape of the ring groove is adapted to the shape of the fork 155. The shift fork 155 shifts the toothed ring 154 through the ring groove to move among a first position, an intermediate position, and a second position.

Preferably, a power assembly 160 and a transmission assembly 170 are also included; the power assembly 160 is fixed to one side of the winding body 110; the transmission assembly 170 is installed at one end of the winding shaft 140, and the transmission assembly 170 connects the power assembly 160 with the winding shaft 140. The power assembly 160 may be used to provide power for winding the cable to the first drum 120 and the second drum 130 on the winding shaft 140, on the one hand, and to generate electricity using the kinetic energy of the winding shaft 140 as the cable is unwound, on the other hand.

Further, the transmission assembly 170 includes a fourth gear 171 and a fifth gear 172 which are engaged with each other, the fourth gear 171 is connected to one end of the winding shaft 140, the fifth gear 172 is connected to one end of the power assembly 160, and the number of teeth of the fourth gear 171 is greater than the number of teeth of the fifth gear 172. The transmission assembly 170 of the scheme can reduce the rotating speed at one end of the winding rotating shaft 140 and increase the torque in the winding stage of the mooring rope through the design of different tooth numbers, so as to provide slow and powerful winding power; during the unreeling phase of the cable, the torque at one end of the power assembly 160 can be reduced and the rotational speed can be increased, thereby providing long-time and stable generating power.

Further, the power assembly 160 includes a generator 161 and a motor 162, one end of the generator 161 is connected to one of the fifth gears 172, and one end of the motor 162 is connected to the other of the fifth gears 172.

In other embodiments, the drive assembly may also be a belt drive or a chain drive comprising a gear ratio.

Optionally, a guiding assembly 180 is further included, the guiding assembly 180 is mounted at the in-out position of the cable on the winding body 110, and the guiding assembly 180 is used for guiding and correcting the posture of the cable when the first drum 120 or the second drum 130 is wound or unwound. The guide assembly 180 is particularly useful in the case of flat bars. After unreeling, the cable is easily twisted around its own axis under the influence of tangential external force. If the winding drum is directly wound on the winding drum, the mooring ropes are overlapped in a mess, and the space of the winding drum after winding is increased; meanwhile, the mooring rope can be bent and wound, and the service life of the mooring rope is reduced. The addition of the guide assembly 180 may first straighten the cable to allow the cable to be wound and unwound in the same posture (front or back).

Preferably, the winding body 110 is a box body, and includes a first inner cavity, a middle inner cavity and a second inner cavity which are sequentially parallel; the first spool 120 is positioned in a first lumen, the switch assembly 150 is positioned in an intermediate lumen, and the second spool 130 is positioned in a second lumen.

Optionally, the winding body 110 is further provided with a power housing or a transmission housing, and the power housing is installed at the periphery of the power assembly 160 to protect the power assembly 160; the drive housing is mounted to the periphery of the drive assembly 170 to protect the drive assembly 170.

In this embodiment, the winch body 110 is assembled to form a box body by using aluminum alloy plates through fasteners, so as to achieve the effect of light weight. The winding shaft 140 is centrally installed at the axial position of the winding body 110 through a bearing, and the winding shaft 140 can freely rotate to transmit power. The first winding drum 120 and the second winding drum 130 are also respectively sleeved on the winding shaft 140 through bearings and distributed in the first inner cavity and the second inner cavity of the winding body 110.

In this embodiment, the numbers of teeth and moduli of the first gear 151, the second gear 152, the third gear 153, and the ring gear 154 are all the same. The first gear 151 is located at a side of the first reel 120 near the middle cavity, the second gear 152 is located at a side of the second reel 130 near the middle cavity, and the third gear 153 is located between the middle cavity and the first gear 151 and the second gear 152. The fork 155 is located at one side of the toothed ring 154, and one end of the fork 155 is inserted into the ring groove of the toothed ring 154. The switch motor 156 is installed on the wall surface of the middle inner cavity, and the link mechanism 157 connects the switch motor 156 and the fork 155.

In this embodiment, the motor 162 and the generator 161 are installed in parallel on an extension plate on one side of the winding body 110. The fourth gear 171 and the fifth gear 172 are located on the same side.

In this embodiment, the guide assembly 180 is composed of vertical rollers 181 and horizontal rollers 182 distributed in a shape of a "mouth", the distance between the vertical rollers 181 is slightly larger than the width of the cable, and the distance between the horizontal rollers 182 is slightly larger than the thickness of the cable. The guide assembly 180 is provided with two groups, which are respectively positioned on the first inner cavity surface and the second inner cavity surface of the winding body 110.

Example 2

As shown in fig. 1 to 10, the present embodiment is a winding umbrella type wind power generation system, which includes a power umbrella 10, a main rope 20, a first rope 21, a second rope 22, rollers 30, a lift guide body 40, and the double-drum rope winding device described in embodiment 1.

The main cable 20 is fixed to the ground at one end and suspended in the air at the other end by a lift guide body 40. The lift guide body 40 is used to provide lift to the main rope 20 and the equipment secured to the main rope 20. One part of the edge of the umbrella cover of the acting umbrella 10 is connected to the main rope 20 through the roller 30, and the rest parts are tied to the first rope 21; the top of the canopy of the work umbrella 10 is tied to a second cable 22. The first rope 21 is wound around the first drum 120 of the double drum rope winding device. The second cable 22 is reeled on the second drum 130 of the double drum cable winding device. The double-drum cable winding device is fixedly arranged on the main cable 20 and is positioned below the acting umbrella 10.

Optionally, a plurality of acting umbrellas 10 are sequentially arranged on the main rope 20 from bottom to top, and a plurality of first ropes 21, second ropes 22, rollers 30 and a double-drum rope winding device are correspondingly arranged.

The working process of the working umbrella 10 in this embodiment is as follows:

in the power generation stage, the high-altitude wind energy drives the acting umbrella 10 to ascend along the main cable 20, and the first cable 21 and the second cable 22 are used for rope releasing. The first cable 21 pulls the first drum 120 to rotate, the switching assembly 150 is switched to the first state, the first drum 120 and the winding rotating shaft 140 rotate synchronously, and the winding rotating shaft 140 drives the generator 161 to start generating electricity through the transmission assembly 170. The second cable 22 pulls the second drum 130 to rotate, and the second drum 130 idles on the winding shaft 140.

In the umbrella closing stage, the working umbrella 10 is lifted to the first height H1, and the generator 161 stops generating electricity. The second cable 22 reaches the payout limit and the payout is stopped. The first cable 21 keeps the rope unreeling, and the edge of the umbrella face of the acting umbrella 10 continues to rise and fold upwards. The first cable 21 reaches the rope releasing limit, and the acting umbrella 10 is closed.

In the recovery stage, the switching assembly 150 is switched to an intermediate state, the motor 162 is started and drives the winding shaft 140 to rotate through the transmission assembly 170, and the first winding drum 120, the second winding drum 130 and the winding shaft 140 simultaneously rotate. The first drum 120 winds the first cable 21 and the second drum 130 winds the second cable 22. The first cable 21 and the second cable 22 are simultaneously retracted and pull the working umbrella 10 down the main cable 20.

In the umbrella opening stage, the acting umbrella 10 descends to the second height H2, and the switching component 150 switches to the first state. The second drum 130 stops rotating and the second cable 22 reaches the take-up limit, stopping the take-up. The first drum 120 and the winding shaft 140 keep rotating synchronously, the first cable 21 keeps winding, and the edge of the umbrella cover of the acting umbrella 10 continues to descend and fold downwards. The first cable 21 reaches the limit of the rope retraction, the motor 162 is closed, and the work umbrella 10 is opened.

It should be understood that the foregoing examples of the present invention are provided for the purpose of clearly illustrating the technical aspects of the present invention and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, improvement, etc. that comes within the spirit and principle of the claims of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A windlass umbrella type wind energy conversion method is characterized in that one end of a first cable is winded on a first winding drum, and the other end is tied on the edge of an umbrella face of a acting umbrella; one end of the second cable is wound on the second winding drum, and the other end of the second cable is tied on the top of the umbrella cover of the acting umbrella; comprising the following stages:

in the power generation stage, the high-altitude wind energy drives the acting umbrella to ascend, the first cable and the second cable are used for paying off, the first cable pulls the first winding drum to rotate, the second cable pulls the second winding drum to rotate, and the first winding drum or the second winding drum drives the generator to generate power;

in the umbrella closing stage, the acting umbrella is lifted to a first height, the first cable keeps releasing the ropes, the second cable stops releasing the ropes, the edge of the umbrella cover of the acting umbrella continues to lift and fold upwards, and the acting umbrella is closed;

in the recovery stage, the motor drives the first winding drum and the second winding drum to rotate simultaneously, the first cable and the second cable are wound, the first winding drum winds the first cable, the second winding drum winds the second cable, and the first cable and the second cable pull the acting umbrella to descend;

in the stage of opening the working umbrella, the working umbrella descends to a second height, the first cable keeps the rope to be retracted, the second cable stops the rope to be retracted, the edge of the umbrella cover of the working umbrella continues to descend and turns down, and the working umbrella is opened.

2. A winch umbrella wind energy conversion method of claim 1, wherein the first drum, the second drum, the generator, and the motor are all secured to a main cable; the generator generates electricity and stores energy in the air, and transmits the energy to the ground or supplies power to the motor through a cable.

3. The winch umbrella type wind energy conversion method according to claim 2, wherein the umbrella cover edge of the acting umbrella is tied on the first cable; one of the two sections is connected to the main cable through a roller, and the acting umbrella ascends and descends along the main cable.

4. The winch umbrella wind energy conversion method of claim 1, wherein the first rope stops paying out when the first drum is fully paying out the first rope; when the first winding drum winds up to the rope winding limit, the first mooring rope stops winding up; stopping paying out the second cable when the second reel completely pays out the second cable; and when the second winding drum winds to the rope winding limit, the second mooring rope stops winding.

5. A winch umbrella type wind power generation system, which is characterized by comprising a double-drum cable winch device and a wind power conversion method according to any one of claims 1 to 4, wherein the double-drum cable winch device comprises a winch body, and the first winding drum, the second winding drum, a winch rotating shaft and a switching component which are arranged on the winch body; the first winding drum, the switching assembly and the second winding drum are sequentially sleeved on the winding rotating shaft in parallel; when the switching component is switched to a first state, the first winding drum and the winding rotating shaft synchronously rotate; when the switching component is switched to a second state, the second winding drum and the winding rotating shaft synchronously rotate; when the switching component is switched to an intermediate state, the first winding drum, the second winding drum and the winding rotating shaft synchronously rotate; the winding rotating shaft is connected with the generator and the motor.

6. The winch umbrella wind power generation system of claim 5, wherein the switching assembly comprises a first gear, a second gear, a third gear, a toothed ring, a fork, and a linear drive; the first gear is fixed on one side of the first winding drum, the second gear is fixed on one side of the second winding drum, the third gear is fixed on the middle part of the winding rotating shaft, and the toothed ring is sleeved outside the third gear; the linear driving piece drives the toothed ring to move by pushing the shifting fork, so that the first gear, the toothed ring and the third gear are meshed with each other or the second gear, the toothed ring and the third gear are meshed with each other or the first gear, the second gear, the toothed ring and the third gear are meshed with each other.

7. The wind power generation system of claim 6, wherein the linear drive comprises a switching motor and a linkage; the switching motor is fixed on the winding body; the connecting rod mechanism is connected with the switching motor and the shifting fork and is used for converting the rotary motion of the switching motor into the linear motion of the shifting fork.

8. The winch umbrella wind power generation system of claim 5, further comprising a transmission assembly; the generator and the motor are fixed on the winch body; the transmission assembly is arranged at one end of the winding rotating shaft and is connected with the generator, the motor and the winding rotating shaft.

9. The wind power generation system of claim 8, wherein the transmission assembly comprises a fourth gear and a fifth gear meshed with each other, the fourth gear is connected with one end of the winding shaft, the fifth gear is connected with the generator and one end of the motor respectively, and the number of teeth of the fourth gear is greater than the number of teeth of the fifth gear.

10. The winding umbrella wind power generation system of claim 5, further comprising a guide assembly mounted to the winding body at the in-out position of the cable, the guide assembly being configured to guide and correct the attitude of the cable when the first or second winding drum is wound or unwound.