A power generation device

Abstract

This invention discloses a power generation device, belonging to the field of gravity energy storage power generation technology, comprising an energy storage block, a first chain, a second chain, and a generator. The power generation device is equipped with a base, on which a rack is fixed. The rack is connected to the first chain via gears. The first chain is connected to the second chain via a drive wheel and a transmission wheel. The second chain is connected to a driven wheel, and the driven wheel is connected to the generator via a transmission shaft. Under the action of gravity, the energy storage block, along with the gears, moves towards the ground. The gears roll downwards along the rack, driving the first chain to rotate. The first chain drives the drive wheel, which meshes with it, to rotate. The drive wheel, via the drive shaft, drives the transmission wheel to rotate. The transmission wheel, via the second chain, drives the driven wheel to rotate. The driven wheel, via the transmission shaft, drives the generator to generate electricity, converting gravitational potential energy into electrical energy. The power generation device proposed in this invention has simple components, reliable performance, and high energy conversion efficiency.

Description

Technical Field

[0001] This invention belongs to the field of gravity energy storage power generation technology, and specifically relates to a power generation device. Background Technology

[0002] Clean energy power generation projects can reduce carbon emissions from fossil fuel combustion power generation, but clean energy power generation resources and power load are often mismatched, especially at night, when the grid demand for wind power generation along the coast decreases, making it difficult to absorb the electricity.

[0003] Among existing energy storage technologies, pumped-storage hydroelectric power stations offer large-capacity energy storage with an energy cycle efficiency of up to 75%. However, constructing pumped-storage power stations requires stringent geographical conditions, large quantities of water, and favorable dam and reservoir construction conditions. They are heavily constrained by natural conditions, involve huge initial investments, and have a wide-ranging impact. Chemical batteries have low energy density, high cost, demanding technology, limited lifespan, and require large quantities of raw materials. While widely used in portable electronic devices and showing promising prospects in electric vehicles and other transportation, they struggle to meet the ultra-large-capacity energy storage needs of national backbone power grids. Ultra-large-scale capacitors offer advantages such as ultra-high power discharge and high cycle efficiency, but their low energy density and requirement for AC / DC conversion make them suitable for use in automobiles, but they are insufficient for industrial and civilian energy storage needs.

[0004] Among existing large-scale physical energy storage systems, gravity energy storage systems have significant advantages in terms of ease of use and cost-effectiveness. Gravity energy storage systems store energy by increasing the potential energy of the storage medium. Solid-load gravity energy storage systems mainly utilize mountain slopes, underground shafts, artificial structures, etc., to lift or pull heavy objects to store energy.

[0005] Currently, most gravity energy storage power generation devices use steel wire ropes to suspend energy storage blocks and transfer gravitational potential energy. However, using steel wire ropes to transfer gravitational potential energy does have some disadvantages, primarily stemming from the physical properties of steel wire ropes and limitations in practical applications. The following are some of the main disadvantages:

[0006] 1. Energy Loss: When a steel wire rope transmits gravitational potential energy, energy loss occurs due to factors such as friction, bending, and vibration. This loss reduces the efficiency of the system, causing the actual energy transmitted to be less than the theoretical value.

[0007] II. Elastic Deformation: Steel wire ropes possess a certain degree of elasticity and will undergo elastic deformation when subjected to gravity. This deformation leads to the storage and release of energy, rather than its direct transfer. In applications requiring precise control of energy transfer, this elastic deformation can become problematic.

[0008] III. Wear and Fatigue: During long-term use, wire ropes are subject to wear and fatigue. Wear reduces the strength and service life of the wire rope, while fatigue may cause it to break at critical moments, resulting in safety accidents.

[0009] IV. Environmental Sensitivity: The performance of wire ropes is affected by environmental factors such as temperature, humidity, and corrosion. In harsh environments, the performance of wire ropes may deteriorate or even fail.

[0010] V. Installation and Maintenance Costs: The installation and maintenance of wire ropes require certain professional skills and tools, which increases the system cost. Furthermore, the replacement and repair of wire ropes also require a certain amount of time and manpower.

[0011] VI. Transmission Efficiency: Compared to some other energy transmission methods (such as hydraulic, pneumatic, etc.), steel wire ropes may be less efficient at transmitting gravitational potential energy. This means that to transmit the same amount of energy, a greater force or a longer transmission distance may be required.

[0012] VII. Control Precision: The control precision of a wire rope when transmitting gravitational potential energy may be limited. Due to factors such as the elasticity and friction of the wire rope, it is difficult to achieve precise energy transfer and control.

[0013] 8. Cumbersome Storage: As the energy storage blocks are raised and lowered, specialized equipment is required for the storage of the wire ropes. Improper handling during storage can damage the wire ropes due to kinking, bending, or friction, affecting their performance and safety.

[0014] In conclusion, although steel wire ropes can be used to transfer gravitational potential energy in certain situations, their disadvantages also need to be fully considered in practical applications.

[0015] It is evident that the existing gravity energy storage system has drawbacks such as cumbersome operation, poor control precision, low transmission efficiency, high installation and maintenance costs, and poor reliability. Summary of the Invention

[0016] The purpose of this invention is to provide a power generation device to solve the shortcomings of existing gravity energy storage systems, such as cumbersome operation, poor control precision, low transmission efficiency, high installation and maintenance costs, and poor reliability.

[0017] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0018] A power generation device includes an energy storage block, a first chain, a second chain, and a generator. The power generation device has a base, on which a rack is fixed. The rack is connected to the first chain via gears. The first chain is connected to the second chain via a drive wheel and a transmission wheel. The second chain is connected to a driven wheel, and the driven wheel is connected to the generator via a transmission shaft. Under gravity, the energy storage block, along with the gears, moves towards the ground. The gears roll downwards along the rack, causing the first chain to rotate. The first chain drives the drive wheel, which meshes with it, to rotate. The drive wheel, via the drive shaft, drives the transmission wheel to rotate. The transmission wheel, via the second chain, drives the driven wheel to rotate. The driven wheel, via the transmission shaft, drives the generator to generate electricity, converting gravitational potential energy into electrical energy.

[0019] Furthermore, each set of the power generation device is provided with two first chains; a first steering wheel, a second steering wheel, a tension wheel, and a drive wheel are jointly sleeved on the first chain; each first chain connects two first steering wheels, at most one second steering wheel, two tension wheels, and at least one drive wheel; wherein the two first steering wheels, the second steering wheel, and the drive wheel are located on the inner side of the first chain, and the two tension wheels are located on the outer side of the first chain.

[0020] Furthermore, the first steering wheels are mounted in pairs on a fixed shaft and fixed to the steering wheel mounting bracket near the top via the fixed shaft; the first steering wheels rotate around the fixed shaft; the second steering wheels are mounted in pairs on a fixed shaft and fixed to the steering wheel mounting bracket near the bottom via the fixed shaft; the second steering wheels rotate around the fixed shaft.

[0021] Furthermore, the rack is vertically fixed to the base; the steering wheel fixing brackets are arranged in pairs and vertically fixed to the base; the tension wheel limiting bracket is arranged in the middle of the pairs of steering wheel fixing brackets and vertically fixed to the base, and the tension wheel limiting bracket has a long elliptical sliding groove in the center.

[0022] Furthermore, a tensioning shaft is provided on the tensioning wheel limit frame, and the tensioning shaft is connected to the upper and lower ends of the tensioning device through the tensioning linkage box. The tensioning device is fixed near the middle position of the steering wheel fixing frame. Two pairs of tensioning wheels are sleeved on the tensioning shaft, and the tensioning wheels rotate around the tensioning shaft. The tensioning shaft moves up and down along the sliding groove provided on the steering wheel fixing frame under the drive of the tensioning device.

[0023] Furthermore, the drive wheels are anchored to the drive shaft in pairs, causing the drive shaft to rotate; the drive shaft is fixed to the bottom of the steering wheel mounting bracket by bearings, and the drive shaft rotates around the bearings.

[0024] Furthermore, the drive wheel is connected to a transmission wheel via a drive shaft; the transmission wheel is connected to the driven wheel via a second chain; the driven wheel is connected to the generator rotor via a transmission shaft; and the generator is connected to an external power grid via a power transmission cable.

[0025] Furthermore, a gear is provided on each side of the energy storage block, and the gear is connected to the energy storage block through a connecting shaft and rotates around the connecting shaft; the energy storage block is placed between the rack and the first chain.

[0026] Furthermore, the energy storage block, rack, gear, first chain, first steering wheel, tension wheel, second steering wheel, drive wheel, transmission wheel, driven wheel, steering wheel fixing frame, tension wheel limit frame, second chain, generator, and tensioning device are all made of steel.

[0027] Furthermore, when multiple generators are installed, the steering wheel mounting bracket near the bottom of the rack is configured as a drive shaft and drive wheel, and a transmission wheel, a second chain, a driven wheel, a transmission shaft, and a generator are added. The transmission wheel is located on one or both sides of the drive shaft.

[0028] Beneficial effects

[0029] This invention reduces energy loss caused by elastic deformation in existing technologies due to the stability of the connections between components such as gears, racks, and chains. Furthermore, these components are less affected by environmental factors, overcoming the performance degradation in harsh environments. The tensioning device facilitates adjustment of the chain tension to adapt to changing environmental conditions, reducing replacement and maintenance costs. This invention's power generation device overcomes the shortcomings of existing gravity energy storage systems, such as cumbersome operation, poor control precision, low transmission efficiency, high installation and maintenance costs, and poor reliability. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0031] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0032] Figure 3 This is a schematic diagram of the energy storage block structure;

[0033] Figure 4 This is a schematic diagram of the tensioner wheel limit frame structure;

[0034] Figure 5 This is a top view of the dual-motor arrangement of the present invention;

[0035] Figure 6 This is a top view of the four-motor arrangement of the present invention;

[0036] In the diagram: 1. Energy storage block; 2. Rack; 3. Gear; 4. First chain; 5. First steering wheel; 6. Tensioner wheel; 7. Second steering wheel; 8. Drive wheel; 9. Transmission wheel; 10. Driven wheel; 11. Steering wheel fixing frame; 12. Tensioner wheel limit frame; 13. Second chain; 14. Generator; 15. Tensioning device; 16. Tensioning shaft; 17. Tensioning linkage box; 18. Fixed shaft; 19. Drive shaft; 20. Sliding groove; 21. Connecting shaft; 22. Transmission shaft; 23. Base. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] Example 1

[0041] A power generation device that connects to a generator.

[0042] A power generation device includes an energy storage block 1, a rack 2, a gear 3, a first chain 4, a first steering wheel 5, a tension wheel 6, a second steering wheel 7, a drive wheel 8, a transmission wheel 9, a driven wheel 10, a steering wheel fixing frame 11, a tension wheel limiting frame 12, a second chain 13, a generator 14, a tensioning device 15, a tensioning shaft 16, a tensioning linkage box 17, a fixed shaft 18, a drive shaft 19, a sliding groove 20, a connecting shaft 21, a transmission shaft 22, and a base 23.

[0043] In the power generation device of the present invention, the energy storage block 1, along with the gear 3, moves toward the ground under the action of gravity. The gear 3 rolls downward along the rack 2, thereby driving the first chain 4 to rotate. The first chain 4 drives the drive wheel 8, which meshes with it, to rotate. The drive wheel 8 drives the transmission wheel 9 to rotate through the drive shaft 19. The transmission wheel 9 drives the driven wheel 10 to rotate through the second chain 13. The driven wheel 10 drives the generator 14 to operate and generate electricity through the transmission shaft 22. The entire process converts gravitational potential energy into electrical energy.

[0044] Each generator set has two racks 2, vertically fixed to the top of the base 23; four steering wheel mounting brackets 11 are arranged in pairs and fixed to the top of the base 23; four first steering wheels 5 are arranged in pairs on the fixed shaft 18 and fixed to the steering wheel mounting bracket 11 near the top via the fixed shaft 18; the first steering wheels 5 can rotate around the fixed shaft 18; two second steering wheels 7 are arranged in pairs on the fixed shaft 18 and fixed to the steering wheels via the fixed shaft 18. The fixed frame 11 is located near the bottom; the second steering wheel 7 can rotate around the fixed shaft 18; there are four tensioning wheels 6, which are paired and sleeved on the tensioning shaft 16. The tensioning shaft 16 is connected to the upper and lower ends of the tensioning device 15 through the tensioning linkage box 17. The tensioning device 15 is fixed near the middle of the steering wheel fixed frame 12; the tensioning wheels 6 can rotate around the tensioning shaft 16; the tensioning shaft 16 can move up and down along the sliding groove 20 provided in the steering wheel fixed frame 11 under the drive of the tensioning device 15. There are two drive wheels 8, which are paired and anchored on the drive shaft 19, and can rotate the drive shaft 19; the drive shaft 19 is fixed near the bottom of the steering wheel fixed frame 11 through bearings, and the drive shaft 19 can rotate around the bearings; the drive wheels 8 are anchored on the drive shaft 19 and can rotate the drive shaft 19; the drive shaft 19 can rotate around the bearings installed in the steering wheel fixed frame 11.

[0045] like Figure 1 , Figure 2 The power generation device of this invention is provided with two first chains 4. The first steering wheel 5, second steering wheel 7, tension wheel 6, and drive wheel 8 on the same side are all mounted on one first chain 4. Each first chain 4 can form a loop, and each loop includes two first steering wheels 5, one second steering wheel 7, two tension wheels 6, and one drive wheel 8. The two first steering wheels 5, second steering wheels 7, and drive wheel 8 are located inside the loop, and the two tension wheels 6 are located outside the loop. The two tension wheels 6 tend to move closer to each other under the drive of the tensioning device 15, thereby achieving the purpose of tensioning the first chain 4. One drive wheel 8 is connected to a transmission wheel 9 via a drive shaft 19; the transmission wheel 9 is connected to a driven wheel 10 via a second chain 13; the driven wheel 10 is connected to the rotor of the generator 14 via a transmission shaft 22; the generator 14 is connected to an external power grid via a power transmission cable.

[0046] A gear 3 is provided on each side of the energy storage block 1; by reasonably adjusting the position between the rack 2 and the first chain 4, the energy storage block 1 can be placed between the rack 2 and the first chain 4; by reasonably adjusting the tooth spacing of the rack 2, the link spacing of the first chain 4, and the tooth spacing of the gear 3, one side of the gear 3 can mesh with the rack 2, and the other side can mesh with the first chain 4.

[0047] The energy storage block 1, rack 2, gear 3, first chain 4, first steering wheel 5, tension wheel 6, second steering wheel 7, drive wheel 8, transmission wheel 9, driven wheel 10, steering wheel fixing frame 11, tension wheel limiting frame 12, second chain 13, and tensioning device 15 are all made of steel.

[0048] A gear 3 is provided on each side of the energy storage block 1. The gear is connected to the energy storage block 1 through a connecting shaft 21, and the gear 3 can rotate around the connecting shaft 21.

[0049] Example 2

[0050] A power generation device that connects two generators.

[0051] like Figure 5 Based on Embodiment 1, both drive wheels 8 are connected to transmission wheels 9 via drive shafts 19, and are correspondingly connected to the second chain 13, driven wheel 10, transmission shaft 22, and generator 14. The remaining components are the same as in Embodiment 1.

[0052] Example 3

[0053] A power generation device that connects four generators.

[0054] like Figure 6 Based on embodiment 2, the fixed shaft 18 that fixes the second steering wheel 7 and the second steering wheel 7 are replaced with the drive shaft 19 and the drive wheel 8, respectively. All four drive wheels 8 are connected to the transmission wheel 9 through the drive shaft 19, and are correspondingly connected to the second chain 13, the driven wheel 10, the transmission shaft 22, and the generator 14. The remaining components are the same as in embodiment 2.

[0055] The power generation device of this embodiment includes an energy storage block 1, a rack 2, a gear 3, a first chain 4, a first steering wheel 5, a tension wheel 6, a drive wheel 8, a transmission wheel 9, a driven wheel 10, a steering wheel fixing frame 11, a tension wheel limiting frame 12, a second chain 13, a generator 14, a tensioning device 15, a tensioning shaft 16, a tensioning linkage box 17, a fixed shaft 18, a drive shaft 19, a sliding groove 20, a connecting shaft 21, a transmission shaft 22, and a base 23, etc.

[0056] In this embodiment of the power generation device, the energy storage block 1, along with the gear 3, moves toward the ground under the action of gravity. The gear 3 rolls down along the rack 2, thereby driving the first chain 4 to rotate. The first chain 4 drives the drive wheel 8, which meshes with it, to rotate. The drive wheel 8 drives the transmission wheel 9 to rotate through the drive shaft 19. The transmission wheel 9 drives the driven wheel 10 to rotate through the second chain 13. The driven wheel 10 drives the generator 14 to operate and generate electricity through the transmission shaft 22. The whole process converts gravitational potential energy into electrical energy.

[0057] Each generator set has two racks 2, vertically fixed to the top of the base 23; four steering wheel fixing brackets 11 are arranged in pairs and fixed to the top of the base 23; four first steering wheels 5 are arranged in pairs on the fixed shaft 18 and fixed to the steering wheel fixing bracket 11 near the top via the fixed shaft 18; the first steering wheels 5 can rotate around the fixed shaft 18; four tensioning wheels 6 are arranged in pairs on the tensioning shaft 16, the tensioning shaft 16 is connected to the upper and lower ends of the tensioning device 15 via the tensioning linkage box 17, and the tensioning device 15 is fixed to the steering wheel fixing bracket 12 near the middle; the tensioning wheels 6 can rotate around the tensioning shaft 16; the tensioning shaft 16 can move up and down along the sliding groove 20 provided on the steering wheel fixing bracket 11 under the drive of the tensioning device 15. There are four drive wheels 8 in total, which are anchored to the drive shaft 19 in pairs and can rotate with the drive shaft 19. The drive shaft 19 is fixed to the bottom of the steering wheel mounting bracket 11 by bearings and can rotate around the bearings. The drive wheels 8 are anchored to the drive shaft 19 and can rotate with the drive shaft 19. The drive shaft 19 can rotate around the bearings installed on the steering wheel mounting bracket 11.

[0058] In this embodiment, the power generation device is equipped with two first chains 4. The first steering wheel 5, tension wheel 6, and drive wheel 8 on the same side are all mounted on one first chain 4. Each first chain 4 can form a loop, and each loop includes two first steering wheels 5, two tension wheels 6, and two drive wheels 8. The two first steering wheels 5 and two drive wheels 8 are located inside the loop, and the two tension wheels 6 are located outside the loop. The two tension wheels 6 tend to move closer to each other under the drive of the tensioning device 15, thereby achieving the purpose of tensioning the first chain 4. The drive wheel 8 is connected to the transmission wheel 9 via the drive shaft 19; the transmission wheel 9 is connected to the driven wheel 10 via the second chain 13; the driven wheel 10 is connected to the rotor of the generator 14 via the transmission shaft 22; the generator 14 is connected to the external power grid via a power transmission cable.

[0059] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A power generation device, characterized in that, The device includes an energy storage block, a first chain, a second chain, and a generator. The generator has a base on which a rack is fixed. The rack is connected to the first chain via gears. The first chain is connected to the second chain via a drive wheel and a transmission wheel. The second chain is connected to a driven wheel, which is connected to the generator via a transmission shaft. Under gravity, the energy storage block, along with the gears, moves towards the ground. The gears roll down the rack, causing the first chain to rotate. The first chain drives the drive wheel, which meshes with it, to rotate. The drive wheel, via the drive shaft, drives the transmission wheel to rotate. The transmission wheel, via the second chain, drives the driven wheel to rotate. The driven wheel, via the transmission shaft, drives the generator to generate electricity, converting gravitational potential energy into electrical energy.

2. The power generation device according to claim 1, characterized in that, Each set of the power generation device is provided with two first chains; a first steering wheel, a second steering wheel, a tension wheel, and a drive wheel are jointly mounted on the first chain; each first chain connects two first steering wheels, at most one second steering wheel, two tension wheels, and at least one drive wheel; wherein the two first steering wheels, the second steering wheel, and the drive wheel are located inside the first chain, and the two tension wheels are located outside the first chain.

3. The power generation device according to claim 2, characterized in that, The first steering wheel is mounted in pairs on a fixed shaft and fixed to the steering wheel mounting bracket near the top via the fixed shaft; the first steering wheel rotates around the fixed shaft. The second steering wheel is mounted in pairs on a fixed shaft and fixed to the steering wheel mounting bracket near the bottom via the fixed shaft; the second steering wheel rotates around the fixed shaft.

4. The power generation device according to claim 1, characterized in that, The rack is vertically fixed to the base; the steering wheel fixing brackets are arranged in pairs and vertically fixed to the base; the tension wheel limiting bracket is arranged in the middle of the pairs of steering wheel fixing brackets and vertically fixed to the base, and the tension wheel limiting bracket has a long elliptical sliding groove in the center.

5. The power generation device according to claim 4, characterized in that, The tensioning wheel limit frame is equipped with a tensioning shaft, which is connected to the upper and lower ends of the tensioning device through a tensioning linkage box. The tensioning device is fixed near the middle of the steering wheel fixing frame. Two pairs of tensioning wheels are sleeved on the tensioning shaft, and the tensioning wheels rotate around the tensioning shaft. The tensioning shaft moves up and down along the sliding groove provided on the steering wheel fixing frame under the drive of the tensioning device.

6. The power generation device according to claim 1, characterized in that, The drive wheels are anchored in pairs on the drive shaft, causing the drive shaft to rotate; the drive shaft is fixed to the bottom of the steering wheel mounting bracket by bearings, and the drive shaft rotates around the bearings.

7. The power generation device according to claim 1, characterized in that, The drive wheel is connected to a transmission wheel via a drive shaft; the transmission wheel is connected to the driven wheel via a second chain; the driven wheel is connected to the generator rotor via a transmission shaft; and the generator is connected to the external power grid via a power transmission cable.

8. The power generation device according to claim 1, characterized in that, A gear is provided on each side of the energy storage block. The gear is connected to the energy storage block through a connecting shaft and rotates around the connecting shaft. The energy storage block is located between the rack and the first chain.

9. The power generation device according to claim 1, characterized in that, The energy storage block, rack, gear, first chain, first steering wheel, tension wheel, second steering wheel, drive wheel, transmission wheel, driven wheel, steering wheel fixing frame, tension wheel limit frame, second chain, generator, and tensioning device are all made of steel.

10. The power generation device according to claim 1, characterized in that, When the power generation device is equipped with multiple generators, the steering wheel fixing frame near the rack is configured with a drive shaft and drive wheel near the bottom, and a transmission wheel, a second chain, a driven wheel, a transmission shaft and a generator are added. The transmission wheel is located on one or both sides of the drive shaft.

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