Gravity energy storage device

Abstract

A gravity energy storage device is provided with an integral gravity body and a plurality of bearing columns, and the bearing columns are jointly applied to the integral gravity body. A main gear box and a plurality of secondary gear boxes are arranged on a structural beam or a gravity body of the bearing column, energy conversion mechanisms are arranged in the main gear box and the secondary gear boxes, lifting power mechanisms are arranged on the secondary gear boxes, and the main gear box and the secondary gear boxes are connected through a transmission mechanism; a climbing ladder is arranged on the gravity body, a climbing wheel is arranged on the secondary gear box, when energy needs to be stored, the climbing wheel is driven through mechanical kinetic energy, and the climbing wheel lifts the gravity body through the climbing ladder and stores the gravity body into gravitational potential energy; wind energy obtained by the wind driven generator can be directly converted into gravitational potential energy through the crawling ladder and the crawling wheels; when power generation is needed, the gravity body releases falling energy of the gravity body to drive the lifting mechanisms in the secondary gear boxes to operate synchronously, and the lifting mechanisms of the secondary gear boxes output power through the energy conversion mechanism of the main gear box to generate power.

Description

Technical Field

[0001] The invention relates to the field of energy storage, in particular to a gravity energy storage device. Background Art

[0002] With the transformation of the global energy structure and the rapid development of renewable energy, energy storage technology has received widespread attention as a key link in balancing electricity supply and demand and improving energy efficiency. Gravity energy storage has unique advantages as a safe and environmentally friendly energy storage method with a long lifespan, long energy storage time and no attenuation problem. However, traditional gravity energy storage methods, such as pumped storage, have high requirements on the regional environment and require two upper and lower reservoirs with a certain height difference, which makes site selection difficult and limits its widespread application.

[0003] In order to solve this problem, researchers proposed a new gravity energy storage technology for concrete block energy storage towers. This technology sets up a large number of upper and lower warehouses, lifts many concrete gravity blocks to a high place and stacks them in the upper warehouse, and then stacks them in the lower warehouse after putting them down, and performs horizontal displacement to achieve repeated stacking, lifting and lowering, thereby completing the conversion of gravitational potential energy into electrical energy.

[0004] However, this new type of gravity energy storage technology also faces some challenges. First, because thousands of concrete blocks are stacked upward around the tower, the different stacking heights make the potential energy contained in each concrete block different, and the lifting time is also different when released downward, which will pose certain risks to the tower itself and the surrounding safety. Secondly, how to lift and lower thousands of gravity blocks and how to operate them stably and efficiently are the key issues that need to be solved in gravity potential energy conversion technology.

[0005] Therefore, how to provide a new gravity energy storage technology that can effectively solve the above problems is of great significance to promoting the development and application of gravity energy storage technology. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a gravity energy storage device.

[0007] The technical solution of the present invention is a gravity energy storage device, comprising: an energy input device for electric power input or mechanical power input, a gravity potential energy output mechanism and a power generation system, and also comprising a plurality of bearing columns and an integral gravity body; a main gear box and a plurality of secondary gear boxes are arranged on the bearing column or the gravity body; an energy conversion mechanism 1 is arranged in the main gear box, an energy conversion mechanism 2 is arranged in the secondary gear box, a lifting structure is arranged on the bearing column or the gravity body; the main gear box and the secondary gear box transmit power through a transmission mechanism; When storing energy, energy is input into the main gearbox through the transmission mechanism, and the energy conversion mechanism 1 of the main gearbox drives the energy conversion mechanism 2 in the multiple secondary gearboxes to operate synchronously, and the energy conversion mechanism 2 in the secondary gearbox raises the integral gravity body and stores it as gravitational potential energy; when generating electricity, the energy of the falling of the integral gravity body itself drives the multiple energy conversion mechanisms 2 to release gravitational potential energy, and the released gravitational potential energy drives the energy conversion mechanism 1 through the multiple energy conversion mechanisms 2, and the main gearbox outputs power to generate electricity through the power generation system.

[0008] Furthermore, the energy conversion mechanism 1 includes a bevel gear plate provided on the back side of the planetary gear chassis, and also includes multiple bevel gears, the multiple bevel gears are meshed with the same bevel gear plate, and each of the bevel gears is connected to a corresponding transmission shaft; the energy conversion mechanism 1 of the main gear box drives the energy conversion mechanism 2 of the secondary gear box and the lifting structure to operate through the transmission shaft.

[0009] Furthermore, the second energy conversion mechanism includes a power gear, a transmission part and a lifting part; the power gear shaft is connected to the secondary gear box, which serves as the input end of the external torque, and is used to directly drive the transmission part, and then indirectly drive the lifting part to drive the gravity body to perform lifting movement.

[0010] Further, the transmission part is a transmission gear 1, which meshes with the power gear, and the lifting part includes a lifting climbing wheel and a fixed ladder fixed to the bearing column or a lifting ladder on the gravity body, and the lifting climbing wheel is fixed coaxially with the transmission gear, and the power gear drives the transmission gear 1, and at the same time drives the lifting climbing wheel to mesh with the fixed ladder or the lifting ladder for transmission; Or, the transmission part is two transmission gears 2, any one of the transmission gears 2 is meshed with the power gear; the lifting part includes a lifting gear 1 and a double-sided rack arranged on the bearing column or the gravity body, the two transmission gears 2 are meshed with each other, the pitch circle of each lifting gear 1 is smaller than the pitch circle of the transmission gear 2, and the two lifting gears 1 are arranged on both sides of the double-sided rack and are respectively meshed with the double-sided rack for transmission.

[0011] Furthermore, the second energy conversion mechanism includes a power gear and a lifting part; the power gear shaft is connected to the secondary gear box, and serves as an input end of external torque, and is used to directly drive the lifting part to drive the gravity body to perform lifting motion.

[0012] Further, the lifting part is two lifting gears 2 and opposite racks arranged on the bearing column or the gravity body, the opposite racks are designed by clamping gears from both sides, the two opposite racks are arranged as one body or combined as one body, and teeth are arranged on opposite sides, two lifting gears 2 are arranged in the middle of the two opposite racks, the two lifting gears 2 are meshed with each other, and any one of the lifting gears 2 is meshed with the power gear; Or, the lifting part is a lifting gear three and a rack with grooves arranged on the bearing column or the gravity body, forming a design mode in which the gear and the roller clamp the rack front and back, wherein, when the rack with grooves is used, the side of the rack is provided with grooves, and a roller is provided on the secondary gear box, and the roller runs up and down in the groove, so that the rack is lifted and lowered between the lifting gear three and the slider, and the lifting gear three is installed on the gear shaft and meshes with the power gear for transmission; Alternatively, when the rack with grooves is used, a slider is provided on the secondary gear box, and the slider moves up and down in the groove, so that the rack is lifted and lowered between the lifting gear three and the slider.

[0013] Furthermore, the energy input device for mechanical power input adopts a vertical axis wind turbine installed at the top of the bearing column, and the power output shaft of the wind turbine drives the power input gear in the main gear box to input power through a transmission mechanism; Alternatively, the power output shaft of the wind power generation directly drives the power gear input power in the secondary gear box through a transmission mechanism.

[0014] Furthermore, the transmission mechanism is a mechanical transmission mechanism of gear transmission and transmission shaft transmission; or a hydraulic transmission mechanism combined with a hydraulic pump and a hydraulic motor.

[0015] Furthermore, multiple energy storage mechanisms and multiple power generation systems are arranged on the bearing column or the gravity body, and the multiple mechanisms are commonly applied to one gravity body. The multiple energy storage structures operate synchronously during energy storage, and the multiple power generation systems operate synchronously during power generation.

[0016] Furthermore, a plurality of groups of bearing columns are arranged in an integrated manner, and gravity bodies are respectively arranged between the bearing columns of each group.

[0017] The beneficial effects of the present invention compared with the prior art are described as follows: 1. The present invention adopts an integral gravity block, does not require a large number of gravity blocks to be stacked around a high tower, does not require horizontal movement, and is safe and stable to operate; does not require the setting of upper and lower positions and translation equipment, and is simple in device; 2. Storing energy as gravitational potential energy and releasing gravitational potential energy to generate electricity are carried out simultaneously without affecting each other; 3. Directly convert the mechanical kinetic energy of the wind turbine into gravitational potential energy, avoiding the energy loss in the process of converting electrical energy into gravitational potential energy after the wind turbine generates electricity; 4. The steps of the fixed ladder are set in a recessed manner on the load-bearing column. The load-bearing capacity of each step is shared by the bottom structure and the two side structures, making the step structure stronger. 5. Set the steps on the ladder as rolling rollers to reduce the wear during the meshing process between the ladder and the climbing wheel; 6. In order to ensure that the meshing of the rack and the gear meets the requirements of tightness and reliability, the gear is clamped on both sides of the rack, or the rack is clamped on both sides of the gear, or the gear and the roller are clamped on the rack from front to back; 7. The energy conversion mechanism 1 of a main gearbox can drive the energy conversion mechanism 2 of multiple secondary gearboxes at the same time; 8. Several to dozens of bearing columns are distributed around an integral gravity body, and multiple groups of lifting parts are applied to one gravity body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a top view of the gravity energy storage facility; Figure 2 yes Figure 1 A-A sectional view; Figure 3 is a schematic diagram of the bevel gear disc 8; Figure 4 yes Figure 3 A top view of Figure 5 yes Figure 4 A schematic diagram of a planetary gear assembled in a top view; Figure 6 It is a schematic diagram of the meshing of multiple gears in the main gearbox; Figure 7 yes Figure 6 An assembly diagram of each component in a top view; Figure 8 is a schematic diagram of the power gear and the power gear; Fig. 9 It is a schematic diagram of the lifting and lowering climbing wheel; Fig.10 It is a front view diagram of a fixed ladder; Fig.11 yes Fig.10 A cross-sectional view taken along the B-B direction; Fig.12 yes Fig.11 Schematic diagram of the assembly of the fixed ladder, lifting climbing wheel and transmission gear; Fig.13 It is a schematic diagram of a fixed ladder step designed as a roller style; Fig.14 yes Fig.13 The cross-section view along the C-C axis and the assembly diagram of the lifting and climbing wheel; Fig.15 It is a schematic diagram of the operating state of each gear in the main gearbox when simply storing gravitational potential energy; Fig.16 This is a diagram showing the operating status of each gear in the main gearbox when simply releasing gravitational potential energy to generate electricity; Fig.17 It is the operating state diagram of each gear when input and output are carried out simultaneously; Fig.18 It is a schematic diagram of the operating status of each gear when input and output are carried out simultaneously and the input and output power are the same; Fig.19 is a schematic structural cross-sectional view of implementation mode 2; Fig. 20 is a schematic structural cross-sectional view of implementation mode 3; Fig.21 is a schematic structural cross-sectional view of a fourth embodiment; Fig. 22 It is a schematic diagram of a lifting ladder; Fig.23 is Fig. 22 A schematic diagram of a side view of a foundation equipped with a lifting climbing wheel; Fig.24 Schematic diagram of the meshing and layout of a set of lifting gears and a double-sided rack; Fig.25 yes Fig.24 A top view of Fig.26 It is a schematic diagram of the meshing and layout of two sets of lifting gears and two double-sided racks; Fig. 27 It is a schematic diagram of the meshing and layout of a set of lifting gears 2 and two opposite racks; Fig.28 It is a schematic diagram of a set of three lifting gears and meshing with a rack with a groove structure and a roller arrangement; Fig.29 yes Fig.28 A top view of Fig.30 It is a schematic diagram of the meshing of the lifting gear 3 and the rack with groove structure and the setting of the slider; Fig.31 yes Fig.30 A top view of Fig.32 It is a schematic diagram of the layout of the bevel gear disc in a main gearbox applied to eight secondary gearboxes; Fig.33 is a schematic structural cross-sectional view of a sixth embodiment; Fig.34 is a structural schematic diagram of implementation mode 7; Fig.35 It is a schematic diagram of the layout of eight load-bearing columns applied to a gravity body; Fig.36 It is a schematic diagram of the layout of the load-bearing piers when multiple gravity bodies are integrated. DETAILED DESCRIPTION

[0019] The gravity energy storage device of the present invention is provided with an energy input device, which can adopt electric power input or mechanical power input, a gravity potential energy output mechanism and a power generation system; and also includes a gravity body 5.

[0020] The present invention constructs a plurality of bearing columns 7 as a basic support structure, and these bearing columns 7 can adopt existing bridge piers or specially designed gravity bearing structures. An integral gravity body 5 is arranged between the bearing columns 7, and the gravity body 5 is made of reinforced concrete or steel structure, and gravity objects (such as stones, metals, etc.) can be filled inside to increase weight and stability. An energy conversion device is arranged above the gravity body 5 or the bearing columns 7, and the energy conversion device includes a main gearbox 1 and a secondary gearbox 2. The main gearbox 1 and the secondary gearbox 2 are arranged as core components for energy conversion. The energy conversion mechanism 1 in the main gearbox 1 is responsible for preliminary energy conversion and distribution, while the energy conversion mechanism 2 in the secondary gearbox 2 is responsible for further energy transmission and lifting control.

[0021] Hydraulic devices are arranged in the main gearbox 1 and the secondary gearbox 2. These devices have the function of converting the hydraulic pump function and the hydraulic motor function, that is, the input and output functions can be interchanged to achieve more efficient energy transmission and control.

[0022] On the basis of the above, it can be combined with renewable energy, such as: Wind power generation converts the wind energy generated by the wind turbine into gravitational potential energy for storage through a mechanical transmission mechanism or a hydraulic system. The wind turbine drives the hydraulic pump, which drives the hydraulic motor in the main gearbox 1 or the secondary gearbox 2 through the hydraulic pipeline, and then drives the relevant mechanism to store energy or generate electricity.

[0023] Wave power generation: The mechanical kinetic energy generated by the wave power generation device is transmitted to the main gearbox 1 or the secondary gearbox 2 through a mechanical transmission mechanism or a hydraulic transmission mechanism to be stored as gravitational potential energy.

[0024] Solar power generation: The electric energy generated by solar energy is used to drive the motor, which drives the main gear 1 or directly drives the secondary gearbox 2 to store it as gravitational potential energy.

[0025] In addition, multiple energy storage and power generation mechanisms are set up: Multiple sets of energy storage mechanisms and power generation mechanisms are arranged on the bearing column 7 or the gravity body 5 to improve the overall performance and reliability of the system. Multiple sets of main gearboxes 1 and secondary gearboxes 2 can be distributed around an integral gravity body 5, or multiple sets of bearing columns 7 and gravity bodies 5 can be arranged in an integrated manner.

[0026] Alternatively, multiple groups of gravity energy storage devices can be combined in parallel or series to meet different energy requirements and application scenarios.

[0027] Electronic sensors and flow control valves are arranged throughout the system to monitor and adjust the working status and flow of hydraulic equipment in real time to ensure stable operation and efficient energy conversion of the system. A one-way clutch device is set on the drive shaft connecting the hydraulic pump and hydraulic motor to ensure the correct connection and separation of the hydraulic pump and hydraulic motor during input and output.

[0028] The gravity energy storage device of the present invention uses gravitational potential energy as an energy storage medium, which is more environmentally friendly, safe and sustainable than traditional battery energy storage methods. At the same time, combined with renewable energy technologies such as wind power generation, wave power generation and solar power generation, the environmental protection and sustainability of the system are further improved. The present invention realizes efficient, environmentally friendly and sustainable energy storage and power generation functions. This technical solution has broad application prospects and market potential.

[0029] The specific plan is as follows, which is explained in detail: Implementation Method 1

[0030] In the implementation of the present invention, four (a group of) gravity body bearing columns 7 such as bridge piers are built on the foundation with reinforced concrete or steel structure, or a support body capable of bearing a huge gravity body is built by using gullies, abandoned mines, underground or semi-underground deep pits; the height of the bearing column 7 is from tens of meters to hundreds of meters. Side connecting beams are arranged between the peripheries of the bearing column 7, and a cross top connecting beam is arranged at the top of the bearing column 7. Both the side connecting beam and the top connecting beam are made of steel structure or reinforced concrete structure. An integral gravity body 5 is arranged between the four bearing columns 7, and the weight of the gravity body 5 can reach hundreds of tons to hundreds of thousands of tons or more; the gravity body 5 can be a gravity object loaded in a reinforced concrete structure or a steel box. A guide rail is arranged between the bearing column 7 and the gravity body 5, and the gravity body 5 rises and falls along the guide rail; an energy conversion device is arranged on the gravity body 5 or the bearing column 7; when energy storage is required, the electric energy or mechanical kinetic energy is passed through the energy conversion device to raise the gravity body and store it as gravitational potential energy; when power generation is required, the gravitational potential energy is released to generate power through the energy conversion device and the power generation system.

[0031] A main gearbox 1 is arranged at the center of the top layer of the gravity body 5, and an energy conversion mechanism 1 for energy input and energy output is arranged inside the main gearbox 1. A structural frame 3 is arranged at the top of each gravity body 5 and adjacent to the bearing column 7. The structural frame 3 and the gravity body 5 are fixed as a whole. A secondary gearbox 2 is arranged on the structural frame 3, and an energy conversion mechanism 2 is arranged inside the secondary gearbox 2. The energy conversion mechanism 2 includes a lifting part for lifting the gravity body 5; there is a transmission structure between the main gearbox 1 and the secondary gearbox 2; Figure 1 , 2 As shown, the corresponding conversion mechanism 1 and energy conversion mechanism 2 inside the main gearbox 1 and the secondary gearbox 2 constitute an energy conversion device.

[0032] The energy input and energy output conversion mechanism 1 is arranged inside the main gearbox 1, which includes a power input shaft 18, a power input gear 13, and the power input gear 13 is fixed to the power input shaft 18; there are also a power output main gear 9 and a conversion gear 10, the power output main gear 9 is an external gear, and the conversion gear 10 is an internal gear, the power output main gear 9 and the conversion gear 10 are concentrically fixed as a whole, and are assembled on the power input shaft 18 through bearings; a plurality of planetary gears 12 are arranged inside the conversion gear 10, the planetary gears 12 are assembled on the planetary gear shaft 14 through bearings, the planetary gear shaft 14 is fixed on the planetary gear chassis 11, and the planetary gear chassis 11 is assembled on the power input shaft 18 through bearings, a sun gear (power input gear 13) is arranged at the center of the plurality of planetary gears 12, the conversion gear 10 is meshed with the outer ring of the planetary gear 12, and the inner ring of the planetary gear 12 is meshed with the sun gear (power input gear 13), and a power output gear 16 is also arranged and fixed to the power output shaft 17, and the power output gear 16 is meshed with the power output main gear 9, such as Figure 5 , 6 , 7, Figure 6 The dotted circle is the planetary gear chassis 11. The power input shaft 18 is provided with a brake mechanism, a clutch mechanism and a non-return mechanism. The non-return mechanism allows the power input shaft 18 to rotate in one direction only when energy is input. The back of the planetary gear chassis 11 is a bevel gear plate 8. The planetary gear chassis 11 and the bevel gear plate 8 are the same component. Four bevel gears 15 are also provided. The four bevel gears 15 are meshed with the same bevel gear plate 8. Four corresponding transmission shafts 4 are fixed to the four bevel gears 15. Figure 3 , 4 , as shown in 7.

[0033] The second energy conversion mechanism in the secondary gearbox 2 includes a power gear 22, a transmission part and a lifting part; the power gear 22 shaft is connected to the secondary gearbox 2, and it serves as the input end of the external torque, and is used to directly drive the transmission part, and then indirectly drive the lifting part to drive the gravity body 5 to perform lifting movement.

[0034] The transmission part is a transmission gear 35, which meshes with the power gear 22, and the power gear 22 is fixed to the transmission shaft 4; the lifting part includes a lifting climbing wheel 36 for lifting the gravity body 5 and a fixed ladder 6 fixed to the bearing column, and the lifting climbing wheel 36 and the transmission gear 35 are coaxially fixed; Figure 8 , 9 , 12. The transmission gear also functions as a speed change gear.

[0035] A fixed ladder 6 in a stair-like manner is arranged on each bearing column 7, like a ladder for vertically climbing a tower. The steps of the fixed ladder 6 are arranged in a recessed manner on the bearing column, and the load-bearing capacity of each step is jointly borne by the bottom structure and the two side structures on three sides; the depth (width) of the steps 37 of the fixed ladder 6 is designed to be several centimeters to more than tens of centimeters, such as Fig.10 , 11 The fixed ladder 6 is a pre-buried steel structure and assembled in combination; the upper plane of the step 37 of the fixed ladder 6 and the meshing surface of the lifting climbing wheel 36 adopt the involute design of the involute gear. The design and assembly of the lifting climbing wheel 36 and the fixed ladder 6 are shown in Figures 9, 10, 11, and 12.

[0036] The force-bearing surface of the lifting climbing wheel 36 has a single-sided directionality, which belongs to a single-sided downward pressure, and only the meshing surface with the fixed ladder is the force-bearing surface; the force-bearing surface of the fixed ladder step is mainly the upper plane, similar to the steps of the stairs, such as Fig.12 shown.

[0037] Alternatively, the steps of the fixed ladder 6 can be configured as rolling rollers 38, and the bearings 39 for assembling the rollers 38 can be set on the structures on both sides of the steps. The lifting wheels 36 can directly mesh with the rollers 38. The design of the rollers 38 can greatly reduce the wear of the meshing of the lifting wheels 36 and the steps. The steps can also be configured by designing the rolling rollers as fixed steel shafts. The entire load-bearing capacity of the rollers or steel shafts is borne by the structures on both sides of the ladder. Using rollers for the steps of the fixed ladder 6 brings the force point of the lifting wheels 36 closer to the center of the wheel, thereby increasing the strength of the force point of the lifting wheels 36 and improving the structural strength of the lifting wheels 36. Fig.13 , 14 As shown. The lifting climbing wheel 36 can also be designed in a manner similar to a sprocket wheel.

[0038] In order to ensure the synchronization of the four lifting wheels 36, the corresponding power gear 22, transmission gear 1 35 and transmission shaft 4 are all driven synchronously by the same main gear box 1. A power generation system is arranged at the top of the gravity body, and the power input mechanism of the power generation system is connected to the power output component in the main gear box 1.

[0039] A brake structure is also provided in the secondary gearbox 2 to lock the fixed ladder 6 and the lifting climbing wheel 36 when maintenance is required. A clutch structure is also provided on the lifting climbing wheel 36 to make the climbing wheel idle when needed.

[0040] A gear speed change mechanism may also be provided at the power input end 18, or between the power gear 22 and the transmission gear 35 in the secondary gear box 2; in addition, a corresponding gear speed change mechanism may also be provided at the power output end in accordance with the requirements of the power generation mechanism.

[0041] When the embodiment is in working operation, the energy input device drives the power input shaft 18 to input energy, the gear mechanism in the main gear box 1 drives the bevel gear plate 8, the bevel gear plate 8 drives the four bevel gears 15, the four bevel gears 15 drive the four power gears 22 through the four transmission shafts 4, the power gears 22 drive the transmission gear 1 35 and the lifting climbing wheel 36, the lifting climbing wheel 36 climbs up or down in a rolling climbing manner on the fixed ladder 6, so that the gravity body 5 rises and falls, and the main gear box 1 and the secondary gear box 2 and the gravity body 5 rise and fall synchronously, such as Figure 1 , 2 , as shown in 6-12.

[0042] One main gearbox 1 and bevel gear plate 8 can drive the lifting parts of more secondary gearboxes 2, such as Fig.32 shown.

[0043] It is also possible to set up multiple main gearboxes 1 and power generation mechanisms, with every two secondary gearboxes 2 driven by one main gearbox 1, or each secondary gearbox 2 driven by one main gearbox 1; or when the input energy is stored as gravitational potential energy, it does not pass through the main gearbox, but the motor directly drives the lifting part of the secondary gearbox. Multiple groups of mechanisms are monitored and uniformly controlled by electronic sensors, and multiple groups of mechanisms operate synchronously when storing energy or generating electricity to release energy, so that the gravity body 5 can be lifted and lowered vertically.

[0044] The operating principle of the gravity energy storage device of the present invention: A. When the gravitational potential energy needs to be stored simply, because no power output is needed, the power output gear 16 does not rotate, and the power output main gear 9 and the conversion gear 10 do not rotate either; Fig.15 For example: the power input shaft 18 driven by the power mechanical equipment drives the input gear 13 to rotate clockwise, the planetary gear 12 itself rotates counterclockwise, and the planetary gear shaft 14 drives the planetary gear chassis 11 to rotate clockwise; because the planetary gear chassis 11 and the bevel gear plate 8 are integrated, the bevel gear plate 8 drives the bevel gear 15 to rotate, and drives the transmission gear 1 35 and the lifting climbing wheel 36 to rotate counterclockwise through the transmission shaft 4 and the power gear 22. The lifting climbing wheel 36 climbs upward on the fixed ladder 6 in a rolling manner, driving the gravity body 5 to rise and store gravity potential energy, such as Figure 7 , 8, 12, and 15.

[0045] B. When power generation is required, the gravitational potential energy is released to output power. Since the weight of the gravity body 5 is fixed, the gravity body 5 naturally descends with a constant downward force. First, the required power (output shaft speed) is set according to the power generation system requirements. The lifting wheel 36 rotates clockwise under the drive of the fixed ladder 6, and drives the power gear 22 through the transmission gear 1 35. The power gear 22 drives the bevel gear 15 to rotate through the transmission shaft 4. Fig.16 For example: at this time, the power input shaft 18 and the power input gear 13 are locked by the anti-return mechanism, and the bevel gear 15 drives the bevel gear plate 8 and the planetary gear chassis 11 to rotate counterclockwise, and the planetary gear 12 rolls counterclockwise on the power input gear 13, and rotates counterclockwise by itself, and drives the conversion gear 10 to rotate counterclockwise, and the conversion gear 10 drives the power output main gear 9 to rotate counterclockwise, and the power output main gear 9 drives the power output gear 16 to rotate clockwise, and the power output gear 16 drives the power output shaft 17 to rotate to output power, such as Figure 7 , 8 , 12, and 16.

[0046] C. If it is applied to solar power generation or wind power generation to store energy and output electric energy at the same time; because of the uncertainty of solar energy and wind energy, and the gravity of the gravity body 5 falling is constant, and the output power is also set according to the power generation requirements, the speed of the output gear is also set; when the input power is greater than the output power, the excess energy of the input power exceeding the output power continues to be used for the storage of gravitational potential energy, that is, the excess power causes the planetary gear chassis 11 (bevel gear plate) to rotate slowly clockwise, the bevel gear 15 drives the related gears, and the lifting and climbing wheel 36 rotates slowly counterclockwise, so that the gravity body 5 rises slowly, and the energy greater than the output power is continued to be stored as gravitational potential energy, such as Fig.17 shown.

[0047] D. When the input power is less than the output power, the input power is insufficient to supply the output power, because the gravity of the gravity body 5 is continuous, and the output gear rotates at a speed according to the design requirements; at this time, the gravity body 5 descends to release the gravity potential energy, the fixed ladder 6 drives the lifting climbing wheel 36 and the power gear 22 to rotate, and drives the bevel gear plate 8 and the planetary gear chassis 11 to rotate counterclockwise through the transmission shaft 4 and the bevel gear 15. The planetary gear 12 rotates under the drive of the planetary gear chassis 11 and drives the conversion gear 10 to rotate counterclockwise. The conversion gear 10 drives the power output main gear 9 to rotate counterclockwise, and the power output main gear 9 drives the power output gear 16 to rotate clockwise. Because there is still energy input at this time, the power input gear 13 still rotates slowly and continues to input power.

[0048] E. When the input power and output power are the same, Fig.18For example: at this time, the power input gear 13 rotates clockwise, the planetary gear chassis 11 does not move, the lifting climbing wheel 36 does not move, the planetary gear 12 rotates counterclockwise in the original position, the planetary gear 12 drives the conversion gear 10 and the output main gear 9 to rotate counterclockwise, so that the power output gear 16 rotates clockwise to output power, such as Fig.18 shown.

[0049] Embodiment 2: On the basis of embodiment 1, a vertical axis wind turbine 41 is arranged on the top connecting beam at the top of the bearing column 7, and the power output shaft 42 of the wind turbine 41 extends downward through the gravity body 5 to the lowest foundation position and can rotate freely. The structural frame for mounting the wind turbine on the top of the bearing column 7 and the foundation are both provided with bearings 40 for stabilizing the power output shaft; the cross section of the power output shaft of the wind turbine below the top connecting beam is set to a rectangular or splined shaft form; the power input shaft 18 is set to a hollow shaft, and the hollow shaft hole is set to a rectangular or splined form. The power input shaft 18 can slide up and down on the vertical shaft 42, and the vertical shaft 42 of the wind turbine 41 is directly used as the power input shaft, such as Fig.19 shown.

[0050] This avoids the energy loss of storing gravitational potential energy through related mechanisms after the wind turbine generates electricity, thereby improving the energy storage efficiency; the direct input of energy through the vertical axis is not limited by the size of the wind, and the purpose of energy storage can be achieved by running the wind turbine.

[0051] Alternatively, the power output shaft of the wind turbine drives the power input shaft of the main gear through a transmission mechanism. In the main gear box, a power gear 2 is provided, which matches the power output shaft 42 of the wind turbine and can slide up and down on the power output shaft of the wind turbine. A transmission gear 3 is provided on the power input shaft 18. The power gear 2 of the power output shaft 42 of the wind turbine is meshed with the transmission gear 3 of the power input shaft, and the speed change is realized at the same time.

[0052] Embodiment 3: On the basis of embodiment 1 or embodiment 2, in order to reduce the height of the bearing column 7, reduce the construction cost and improve the safety performance; the main gearbox 1 and the secondary gearbox 2 are both arranged on the structural frame at the bottom or middle layer of the gravity body 5. It is safer and more convenient to arrange the gearbox at the middle or lower layer. In particular, if the secondary gearbox 2 and the structural frame 3 are arranged at the top layer of the gravity body, the structural frame 3 has to bear the lifting load of tens of thousands or even hundreds of thousands of tons. The firmness of the structural frame is very important, so the structural frame is arranged at the bottom layer of the gravity body 5 to make the structure more firm; it is more reasonable to lift the gravity body 5 and store the gravity potential energy by lifting. A certain passage space is reserved at the place where the main gearbox 1, the secondary gearbox 2 and the transmission shaft 4 are arranged as the space for installation and maintenance. The lifting method can make the gravity body 5 higher than the bearing column 7; the mechanical power source (motor) and the power generation facilities for storing energy are arranged at the top of the gravity body 5. The motor and the generator can also be directly arranged at the middle or bottom layer of the gravity body 5.

[0053] Two vertical hollow through holes are provided in the middle of the gravity body 5, so that the vertical axis of the wind turbine generator can pass through the power input gear 13 connected to the main gear box 1 from above and below; and the power output shaft 17 in the main gear box 1 passes through the gravity body 5 to the top of the gravity body 5 and is connected to the generator; Fig. 20 shown.

[0054] Embodiment 4: On the basis of embodiment 1, the main gearbox 1 is set on the top connecting beams of the four bearing columns 7; the fixed ladder 6 is changed to a lifting ladder 20, and the lifting ladder 20 is set on the gravity body 5. A power generation system is also set at the top of the bearing column 7, and the power generation system is connected to the power output shaft 17 in the main gearbox 1. A structural frame 3 and a secondary gearbox 2 are set at the top of each bearing column 7, and the structural frame 3 is fixed on the bearing column 7; the lifting part of the lifting gravity body 5 is set inside the secondary gearbox 2. The steps of the lifting ladder 20 are set in a manner of fixing the steel shaft 34, such as Fig. 22 , 23 As shown. The steel shaft 34 can also be designed in the form of a rolling roller 38. The connection between the lifting ladder 20 and the gravity body 5 can be set as a movable connection, that is, a pin connection method is adopted, which is convenient for adapting to the slight adjustment of the position between the bearing column 7 and the gravity body 5. The force direction of the steel shaft 34 of the lifting ladder 20 is exactly opposite to that of the steps of the fixed ladder 6 in the first embodiment, so the force direction of the lifting climbing wheel 36 is also opposite. The lifting climbing wheel 36 is assembled in the opposite direction to the first embodiment; as shown in FIG. Fig.23 A guide rail 19 is provided on the bearing column 7, and the guide rail 19 is a groove type, and the lifting ladder 20 slides up and down in the guide rail 19. Fig.23For example, when the lifting wheel 36 rotates clockwise, the gravity body 5 is pulled and lifted by the lifting ladder 20 to store gravity potential energy; when generating electricity, the gravity body 5 descends, and the lifting ladder 20 drives the lifting wheel 36 to rotate counterclockwise, and the lifting wheel 36 and the transmission gear 35 drive the gear mechanism of the main gear box 1 through the power gear 22 to operate, output power and generate electricity; Fig.21 , 22 , 23. The lifting ladder 20 can also be fixed on the bearing column 7 and used as a fixed ladder.

[0055] Embodiment 5: On the basis of embodiment 4, the lifting ladder 20 is changed to a lifting rack provided on the gravity body 5, and the lifting wheel 36 in the secondary gear box 2 on the bearing column 7 is changed to a lifting gear.

[0056] Because the bearing column 7 and the gravity body 5 are two independent, huge individuals, the lifting rack and the lifting gear are accessories of two independent individuals, and they are not accessories arranged in the same structure. Affected by the operating environment, the tightness and reliability of the meshing gap between the lifting rack and the lifting gear cannot be controlled. In order to solve the above problems, the lifting gear is clamped from both sides of the lifting rack, or the lifting rack is clamped from both sides of the lifting gear, or the lifting gear and the roller clamp the lifting rack front and back, or the lifting gear and the slider clamp the rack, so as to achieve the purpose of making the lifting rack run up and down in the structure of the lifting gear; fundamentally guaranteeing the tightness, safety and reliability required in the meshing operation of the lifting rack and the lifting gear.

[0057] The specific setting is one of the following: 1. A lifting rack is provided on the gravity body 5, and the lifting rack is set as a double-sided rack 21, and the double-sided rack 21 has teeth on both sides. Inside the secondary gear box 2, an identical lifting gear 1 23 is provided on both sides of the double-sided rack 21, and an identical transmission gear 2 24 is provided on both sides. The pitch circle of the transmission gear 2 24 is larger than the pitch circle of the lifting gear 23, and the difference between the pitch circle radius of the transmission gear 2 24 and the two lifting gears 23 is equal to the width of the double-sided rack 21. The transmission gear 2 24 and the lifting gear 1 23 are fixed coaxially, and the two transmission gears 2 24 are meshed with each other, and one of the transmission gears 2 24 is meshed with the power gear 22. The power gear 22 is connected to the bevel gear 15 in the main gear box 1 through the transmission shaft 4, and the transmission gear 2 24 is driven by the power gear 22. Two lifting gears 23 are arranged on both sides of the double-sided rack, and mesh with the double-sided rack in the form of clamping. The lifting rack runs up and down in the clamping of the gears, and the gravity body 5 is lifted or lowered by the lifting rack; Fig.21 , 24 , 25. Transmission gear 24 also functions as a speed change gear.

[0058] Alternatively, two double-sided racks 21 are arranged side by side, two sets of transmission gears 24 and two sets of lifting gears 1 23 act on the two double-sided racks respectively, and the two adjacent transmission gears in the middle are meshed with each other and driven by a power gear 22 to run synchronously, such as Fig.26 shown.

[0059] 2. A design method in which a lifting rack is used to clamp the gear from both sides: the lifting rack is set as two opposite racks 26, the two opposite racks are set as one body or combined as one body, the teeth of the two opposite racks correspond to each other, and two lifting gears 25 of the same specification are set in the middle of the two opposite racks. In order to ensure that the meshing of the rack and the gear reaches the tightness, safety and reliability of the clearance required by the design, the two lifting gears 2 are set as a pair of meshing with each other, and the two opposite racks are raised or lowered by clamping the two lifting gears. One of the two lifting gears 25 is directly driven by the power gear 22, such as Fig. 27 shown.

[0060] Alternatively, two sets of opposite racks 26 are arranged side by side, and two sets of lifting gears 2 are respectively meshed with the two sets of opposite racks.

[0061] 3. The design method of using gears and rollers to clamp the racks in front and behind is adopted: the lifting rack is set to have a groove structure (with an I-shaped cross section) on one side or both sides of the rack, and the rack 28 with grooves is a single-sided rack; in order to ensure that the meshing of the rack and the gear reaches the tightness and reliability required by the design; a roller 30 is set in the secondary gear box 2 on one side or both sides behind the rack 28 with grooves, and the roller is assembled on the roller shaft 29, and the roller shaft 29 is fixed on the secondary gear box 2; the lifting gear three 27 is installed on the gear shaft 32, and the gear shaft 32 is assembled on the secondary gear box 2, and the lifting gear three is driven by the power gear 22; the lifting gear three 27 and the roller 30 run synchronously before and after the rack 28 with grooves, such as Fig.28 , 29 The portion of the basic structure 31 with the grooved rack 28 slides inside the guide rail 19 .

[0062] 4. On the basis of the above-mentioned rack 28 with grooves, the roller on the side of the rack is changed to a slide bar or a slider 33, and the slider 33 is set on the secondary gear box 2; the rack 28 is lifted and lowered between the lifting gear 3 27 and the slider 33; Fig.30 , 31 shown.

[0063] 5. The arrangement of the roller 30 and the slider 33 is combined with the arrangement of the climbing wheel of the first embodiment, or combined with the arrangement of the double-sided rack or the opposite rack. A groove is arranged on one or both sides of the ladder or the rack, and a slider or roller is arranged on the secondary gear box 2, and the slider or roller runs up and down in the groove; so as to ensure that the climbing wheel and the ladder, or the lifting rack and the lifting gear meet the design requirements of tightness, safety and reliability in meshing operation.

[0064] A gear speed change mechanism can also be provided between the power gear 22 and the transmission gear or the lifting gear in the secondary gear box 2. Alternatively, the power gear 22 is not used but the transmission shaft 4 directly drives one of the transmission gears or the lifting gear.

[0065] Alternatively, according to the above design of each rack and gear, the lifting rack is fixed on the bearing column 7, and the meshing mode of the fixed rack and gear is used to replace the fixed ladder 6 and the lifting climbing wheel 36. At the same time, the part of the ladder or the rack that slides up and down in the guide rail 19 is fixed on the bearing column.

[0066] Because the bearing column 7 and the gravity body 5 are two independent, huge individuals, the operating environment and thermal expansion and contraction will cause the meshing clearance between the rack and the gear to be unable to be controlled and guaranteed; in order to solve the above problem, the secondary gear box 2 is configured to be movable (roller or sliding) inside the structural frame 3, and the meshing clearance between the rack and the gear is automatically adjusted by manual or electronic sensing mechanism according to the operating conditions; the transmission shaft 4 is extended (combination of spline shaft and spline shaft sleeve); to ensure that the gear and the rack are closely meshed according to the design requirements.

[0067] Embodiment 6: On the basis of embodiments 2, 4 and 5, a vertical axis wind turbine 41 is arranged on the top connecting beam 45 intersecting the top of the bearing column 7, and the main gearbox 1 and related structures are arranged on the top connecting beam 45 of the bearing column 7. The power output shaft 42 of the wind turbine or the power input gear 13 is driven by the transmission mechanism. The bevel gear plate 8 in the main gearbox 1 drives four bevel gears 15 at the same time, and drives the power gears 22 in the four secondary gearboxes 2 through four transmission shafts 4. The lifting wheels or lifting gears are driven by the power gears, and the gravity body 5 is lifted by the lifting ladder or lifting rack to store gravity potential energy. When power generation is needed, the gravity body 5 descends, and the lifting ladder or lifting rack drives the lifting wheels or lifting gears, and the gravity potential energy is released through the power gear 22 to generate electricity; Fig.33 shown.

[0068] A gravity energy storage mechanism may also be provided at other places other than the tower base of the horizontal axis wind turbine, so that the wind energy obtained by the wind turbine can be directly transmitted to the power input shaft 18 through the transmission shaft 4 or other transmission methods, thereby achieving the energy storage purpose of directly converting mechanical kinetic energy into gravitational potential energy.

[0069] Embodiment 7: On the basis of embodiment 4, the secondary gear box 2 on the bearing column 7 is provided with a winch 43 and a pulley block 44, and the power gear 22 is used as the power gear of the winch to drive the winch to operate; a pulley block 44 is also provided on the gravity body, and a wire rope or chain is provided between the two pulley blocks, and the gravity body 5 is raised and lowered by the winch 43, as shown in FIG. Fig.34 shown.

[0070] Embodiment 8: On the basis of embodiments 1 to 6, a group of hydraulic equipment is set in the main gearbox 1, whose hydraulic pump function and hydraulic motor function can be converted to each other, and whose input and output functions can be converted. The same hydraulic equipment is set in each secondary gearbox 2, and the flow of hydraulic equipment between the four secondary gearboxes 2 is the same, and the four hydraulic equipment are regulated and controlled by the flow regulating valve. The transmission mode of the bevel gear plate 8, the bevel gear 15 and the transmission shaft 4 is replaced by hydraulic transmission; the power between the main gearbox 1 and the secondary gearbox 2 is transmitted by the transmission function of the hydraulic equipment; and a liquid storage tank is provided, and the hydraulic equipment is connected to the storage tank through a pipeline, and the hydraulic pump shaft and the hydraulic motor shaft are provided with a driving gear. The bevel gear plate 8 can also be changed to a disc gear of an involute gear, and the driving gear of the hydraulic equipment is directly or through the transmission gear and the disc gear meshing. When storing energy, the disc gear drives the hydraulic equipment to do work, the hydraulic equipment in the main gearbox 1 does work according to the function of the hydraulic pump, and the hydraulic equipment in the secondary gearbox 2 does work according to the function of the hydraulic motor (that is, the one that outputs power is the work of the hydraulic pump, and the one that receives power is the work of the hydraulic motor); the hydraulic pump of the main gearbox 1 drives the hydraulic motor in the secondary gearbox 2 through the hydraulic pipeline, and the gear of the hydraulic motor shaft drives the power gear 22; when it is necessary to release the gravitational potential energy to generate electricity, due to the falling force of the gravity body 5 itself, the power gear 22 is driven to rotate by the ladder or the rack; at this time, the hydraulic equipment in the secondary gearbox 2 does work according to the function of the hydraulic pump, and the hydraulic equipment in the main gearbox 1 does work according to the function of the hydraulic motor; the power gear 22 drives the hydraulic pump in the secondary gearbox 2, and the hydraulic pumps in multiple secondary gearboxes 2 work synchronously, and jointly drive the hydraulic equipment in the main gearbox 1 to work according to the function of the hydraulic motor, and the hydraulic motor in the main gearbox 1 drives the planetary gear chassis to rotate and output power to generate electricity.

[0071] Alternatively, a hydraulic power gear driving a hydraulic device is provided at the position of the disc gear of the planetary gear chassis, and the hydraulic power gear meshes with the disc gear; a set of hydraulic pump 1 and a set of hydraulic motor 1 are provided in the main gearbox 1; a set of hydraulic pump 2 and a set of hydraulic motor 2 are provided at the position of each secondary gearbox 2, and all hydraulic pumps and hydraulic motors are connected to the liquid storage tank. Hydraulic pump 1 and hydraulic motor 2 are connected through a hydraulic pipeline; hydraulic pump 2 and hydraulic motor 1 are connected through a hydraulic pipeline. Two sets of one-way clutch devices (similar to the flywheel of the rear wheel of a bicycle) with opposite installation methods and opposite functions are provided on the hydraulic power gear shaft of the main gearbox 1 and the power gear shaft of the secondary gearbox 2, and the gears of the clutches are respectively meshed with the driving gear of the hydraulic pump and the driving gear of the hydraulic motor. When inputting energy to store gravity potential energy, the hydraulic power gear shaft of the main gearbox 1 rotates in the design direction, and the rotation direction determines that the clutch of hydraulic pump 1 is locked, and the clutch connected to hydraulic motor 1 is automatically separated; at the same time, the clutch of hydraulic motor 2 of the secondary gearbox 2 is locked, and the clutch of hydraulic pump 2 is automatically separated; hydraulic pump 1 works to drive hydraulic motor 2, and hydraulic motor 2 drives power gear 22 to store gravity potential energy through the lifting part. When releasing gravity potential energy to generate electricity, the power gear shaft of the secondary gearbox 2 rotates in the design direction, and the rotation direction determines that the clutch connected to hydraulic pump 2 is locked, and the clutch of hydraulic motor 2 is separated; the clutch of hydraulic motor 1 is locked, and the clutch of hydraulic pump 1 is separated; hydraulic pump 2 of the secondary gearbox 2 drives hydraulic motor 1 in the main gearbox 1, and hydraulic motor 1 drives the planetary gear chassis to output power and generate electricity through the relevant gear mechanism.

[0072] A liquid regulator is provided on the pipeline between hydraulic pump 1 and hydraulic motor 2 or between hydraulic motor 1 and hydraulic pump 2, and the liquid regulator is connected to the liquid storage tank; the liquid regulator has the function of increasing and decreasing the liquid, and is adjusted manually or electrically, and is used for assembly and maintenance. The regulator adjusts the power gear 22 through the hydraulic motor to achieve the synchronization problem of assembling and adjusting the power gear.

[0073] The method of using hydraulic equipment to transmit energy between the main gearbox 1 and the secondary gearbox 2 is not limited by the position of the main gearbox. The main gearbox 1 can be set at any place, and the main gearbox 1 and the secondary gearbox 2 are connected by a hydraulic pipeline.

[0074] Implementation method 9: The wind energy obtained by the wind turbine is converted into gravitational potential energy through a hydraulic system for storage. A set of hydraulic pumps 3 is arranged on the tower of the horizontal axis or vertical axis wind turbine, and a hydraulic motor 3 connected to the power input shaft is arranged in the main gear box 1; the power output shaft of the wind turbine drives the hydraulic pump 3 to work through gears, the hydraulic pump 3 drives the hydraulic motor 3 through hydraulic pipelines, and the hydraulic motor 3 shaft drives the power input shaft through gears, and the torque of the power output shaft of the wind turbine is driven through the shaft of the hydraulic pump 3 and the shaft of the hydraulic motor 3 and related gears to drive the power input shaft 18 to work and store energy.

[0075] Embodiment 10: A hydraulic pump 3 is arranged on the tower of a horizontal axis or vertical axis wind turbine. The power output shaft of the wind turbine drives the hydraulic pump 3. A group of hydraulic motors 2 and a group of hydraulic pumps 2 are arranged at the position of each secondary gearbox 2. A hydraulic motor 1 is arranged in the main gearbox 1. The wind turbine has a brake mechanism. When working, one hydraulic pump 3 drives the hydraulic motors 2 of several secondary gearboxes 2 at the same time. Two groups of one-way clutch devices with opposite installation methods and opposite functions are arranged on the power gear shaft of the secondary gearbox 2. The hydraulic pump 3 of the wind turbine drives the hydraulic motor 2 in the secondary gearbox 2 to work, and the clutch of the hydraulic motor 2 locks the power gear. At the same time, the clutch connected to the hydraulic pump 2 is separated, and the power gear works to store gravity potential energy. When outputting gravity potential energy to generate electricity, the clutch connected to the hydraulic pump 2 of the secondary gearbox 2 is locked, and the clutch connected to the hydraulic motor 2 is separated. The hydraulic pump 2 drives the hydraulic motor 1 in the main gearbox, and the hydraulic motor 1 drives the planetary gear chassis to output power for power generation. The hydraulic pump 2 and the hydraulic motor 2 of the multiple sets of secondary gear boxes 2 are all monitored by electronic sensors and regulated by flow control valves. The multiple sets of hydraulic equipment operate synchronously to make the gravity body rise and fall vertically.

[0076] Embodiment eleven: The mechanical kinetic energy generated by the prior art "wave power generation device" is transmitted to the main gearbox 1 or directly to the secondary gearbox 2 through a mechanical transmission mechanism or a hydraulic transmission mechanism, and the kinetic energy of the waves is stored as gravitational potential energy through the lifting part.

[0077] Embodiment twelfth: multiple energy storage mechanisms and multiple power generation mechanisms are arranged on the bearing column 7 or the gravity body 5, including multiple main gear boxes 1 and multiple secondary gear boxes 2; energy is input by the electric motor when storing energy; multiple energy storage mechanisms and power generation mechanisms are commonly applied to the same integral gravity body 5, and multiple energy storage mechanisms and power generation mechanisms are monitored and uniformly controlled by electronic sensors. Multiple energy storage mechanisms operate synchronously when storing energy, and multiple power generation mechanisms operate synchronously when generating electricity, so that the gravity body can be lifted and lowered vertically.

[0078] Embodiment 13: A hydraulic sleeve is provided at the bottom or around the gravity body 5, and the gravity body 5 is lifted up by hydraulic means to store gravitational potential energy.

[0079] Embodiment 14: As in all the above embodiments, several to dozens of bearing columns 7 may be arranged as a group, and the plurality of bearing columns 7 may be distributed around an integral gravity body 5. Alternatively, a plurality of sets of main gear boxes 1 and a plurality of sets of secondary gear boxes 2 may be arranged, and applied to a gravity body 5 together, such as Fig.35 shown.

[0080] Embodiment 15: Multiple groups of bearing columns 7, multiple groups of main gear boxes, multiple groups of secondary gear boxes are arranged in an integrated manner, and multiple gravity bodies 5 are arranged between each group of bearing columns; multiple groups of gravity energy storage devices are connected in parallel or in series, such as Fig.36 shown.

[0081] The gravity body of the present invention itself has no attenuation, is environmentally friendly and safe, is not affected by the environment and climate, can store energy for a long time, is suitable for the national power grid, solar power generation, wind power generation, wave power generation power supply industry, can also be applied to large and small enterprises using electricity, and can also be applied to individual units and residents in remote areas for personal use; the size of the gravity energy storage scale of the present invention is set according to the application scale of the application enterprise or individual.

Claims

1. A gravity energy storage device, comprising: An energy input device for electric power input or mechanical power input, a gravitational potential energy output mechanism and a power generation system, characterized in that: it also includes a plurality of bearing columns (7) and an integral gravity body (5); a main gear box (1) and a plurality of secondary gear boxes (2) are arranged on the bearing columns (7) or the gravity body (5); a first energy conversion mechanism is arranged in the main gear box (1), a second energy conversion mechanism is arranged in the secondary gear box (2), and a lifting structure is arranged on the bearing columns (7) or the gravity body (5); the main gear box (1) and the secondary gear box (2) transmit power through a transmission mechanism; When storing energy, energy is input into the main gearbox (1) through the transmission mechanism, and the energy conversion mechanism 1 of the main gearbox (1) drives the energy conversion mechanisms 2 in the plurality of secondary gearboxes (2) to operate synchronously, and the energy conversion mechanisms 2 in the secondary gearboxes (2) raise the integral gravity body (5) and store it as gravity potential energy; when generating electricity, the energy of the integral gravity body (5) itself falling down drives the plurality of energy conversion mechanisms 2 to release gravity potential energy, and the released gravity potential energy drives the energy conversion mechanism 1 through the plurality of energy conversion mechanisms 2, and the main gearbox (1) outputs power, and generates electricity through the power generation system.

2. A gravity energy storage device as claimed in claim 1, characterized in that: The energy conversion mechanism 1 includes a bevel gear plate (8) provided on the back of the planetary gear chassis (11), and also includes a plurality of bevel gears (15), the plurality of bevel gears (15) are meshed with the same bevel gear plate (8), and each of the bevel gears (15) is connected to a corresponding transmission shaft (4); the energy conversion mechanism 1 of the main gear box (1) drives the energy conversion mechanism 2 and the lifting structure of the secondary gear box (2) to operate via the transmission shaft (4).

3. A gravity energy storage device as claimed in claim 1, characterized in that: The second energy conversion mechanism comprises a power gear (22), a transmission part and a lifting part; the power gear (22) is axially connected to the secondary gear box (2) and serves as an input end of external torque, and is used to directly drive the transmission part, thereby indirectly driving the lifting part to drive the gravity body (5) to perform lifting motion.

4. A gravity energy storage device as claimed in claim 3, characterized in that: The transmission part is a transmission gear 1 (35) which meshes with the power gear (22); the lifting part comprises a lifting wheel (36) and a fixed ladder (6) fixed to the bearing column (7) or a lifting ladder (20) on the gravity body (5); the lifting wheel (36) is coaxially fixed with the transmission gear 1 (35); the power gear (22) drives the transmission gear 1 (35) and simultaneously drives the lifting wheel (36) to mesh with the fixed ladder (6) or the lifting ladder (20) for transmission; Alternatively, the transmission part is two transmission gears (24), any one of the transmission gears (24) is meshed with the power gear (22); the lifting part comprises a lifting gear (23) and a double-sided rack (21) arranged on the bearing column (7) or the gravity body (5), the two transmission gears (24) are meshed with each other, the pitch circle of each lifting gear (23) is smaller than the pitch circle of the transmission gear (24), and the two lifting gears (23) are arranged on both sides of the double-sided rack (21) and are respectively meshed with the double-sided rack (21) for transmission.

5. A gravity energy storage device as claimed in claim 1, characterized in that: The second energy conversion mechanism comprises a power gear (22) and a lifting part; the power gear (22) is axially connected to the secondary gear box (2) and serves as an input end of external torque, and is used to directly drive the lifting part to drive the gravity body (5) to perform lifting motion.

6. A gravity energy storage device as claimed in claim 5, characterized in that: The lifting part comprises two lifting gears (25) and opposite racks (26) arranged on the bearing column (7) or the gravity body (5); the opposite racks (26) are designed by clamping gears from both sides; the two opposite racks (26) are arranged as one body or combined as one body, and teeth are arranged on opposite sides; two lifting gears (25) are arranged between the two opposite racks (26); the two lifting gears (25) are meshed with each other, and any one of the lifting gears (25) is meshed with the power gear (22); Alternatively, the lifting part is a lifting gear (27) and a rack (28) with grooves arranged on the bearing column (7) or the gravity body (5), forming a design mode in which the gear and the roller clamp the rack front and back, wherein when the rack (28) with grooves is used, the side surface of the rack is provided with grooves, and a roller (30) is provided on the secondary gear box, and the roller (30) runs up and down in the groove, so that the rack (28) is lifted and lowered between the lifting gear (27) and the slider (33), and the lifting gear (27) is installed on the gear shaft and meshes with the power gear (22) for transmission; Alternatively, when the rack (28) with a groove is used, a slider (33) is provided on the secondary gear box (2), and the slider (33) moves up and down in the groove, so that the rack (28) is lifted and lowered between the lifting gear three (27) and the slider (33).

7. A gravity energy storage device as claimed in claim 1, characterized in that: The energy input device for mechanical power input adopts a vertical axis wind generator (41) arranged at the top end of the bearing column (7), and the power output shaft of the wind generator (41) drives the power input gear (13) in the main gear box (1) to input power through a transmission mechanism; Alternatively, the power output shaft of the wind power generation directly drives the power gear (22) in the secondary gear box (2) to input power through a transmission mechanism.

8. A gravity energy storage device as claimed in claims 1 and 7, characterized in that: The transmission mechanism is a mechanical transmission mechanism of gear transmission and transmission shaft transmission; Or, a hydraulic transmission mechanism using a combination of a hydraulic pump and a hydraulic motor.

9. A gravity energy storage device as claimed in claim 1, characterized in that: A plurality of energy storage mechanisms and a plurality of power generation systems are arranged on the bearing column (7) or the gravity body (5), and the plurality of mechanisms are commonly applied to one gravity body (5). When storing energy, the plurality of energy storage structures operate synchronously, and when generating electricity, the plurality of power generation systems operate synchronously.

10. A gravity energy storage device as claimed in claim 1, characterized in that: A plurality of groups of bearing columns (7) are arranged in an integrated manner, and a gravity body (5) is arranged between each group of bearing columns (7).

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