A mechanical tension gravity energy storage power generation device based on rail train and its power generation track line

Abstract

The present invention discloses a mechanical tensioning gravity energy storage power generation device based on a rail train and a power generation track line thereof, including a power station under the track, two rows of drive plates are arranged at the bottom of the train, the power station includes a box buried under the track, a power generation assembly is arranged in the box, the power generation assembly is arranged in the middle of the track, and the power generation assembly is connected to a tensioning rope assembly, the tensioning rope assembly includes a tensioning steel wire rope, one end of the tensioning steel wire rope is connected to the power generation assembly and arranged in the box, and the other end is connected to a mechanical tensioning adjustment assembly, the mechanical tensioning adjustment assembly is arranged outside the track, and the mechanical tensioning adjustment assembly drives the power generation assembly by adjusting the tensioning force of the tensioning steel wire rope, and is pressed toward the drive plate on the train. The present invention adopts a mechanical tensioning rope design to realize the pressing of the power generation assembly and the train drive plate, avoids the power station pressing being affected by the ambient temperature, improves the applicability of the power station, and is also more convenient for maintenance and adjustment.

Description

Technical Field

[0001] The invention relates to the field of gravity energy storage power generation, in particular to a mechanical tension gravity energy storage power generation device based on a rail train and a power generation track line thereof. Background Art

[0002] With the rapid development of my country's national economy, the types and numbers of power-consuming equipment have increased dramatically, making the peak-to-valley difference of the power grid larger and larger, which not only aggravates the difficulty of peak-shaving of the power grid, but also brings great challenges to the stability of the power grid. The energy storage system can store energy when the power grid has excess energy and release energy when the power grid needs it. The millisecond-level power dynamic compensation capability of the advanced energy storage system can greatly improve the instability problems caused by the randomness, volatility and intermittency of new energy power generation to the power grid. In the power market environment, peak-to-valley electricity prices are implemented. The energy storage system can store the excess electricity generated after the power source participates in the grid dispatch at a low electricity price, and merge it into the grid when there is a dispatch demand or high electricity price, participate in peak-shaving, and maximize the benefits of distributed power generation.

[0003] Gravity energy storage is a new type of long-term and large-capacity energy storage method that has the advantages of high safety, high efficiency, long life, and short construction period. The basic process of energy storage is: using surplus electricity to drive the motor to lift heavy objects, and converting it into high-level potential energy storage; releasing the heavy objects to generate electricity. Due to its large energy storage capacity, long output time, and low unit energy cost, it can accurately track power grid dispatch instructions.

[0004] In rail-type gravity energy storage, it is often used in mines, highlands with unstable climates and other areas. Due to geographical and environmental restrictions, how to design a power generation device that is more adaptable to geographical and climatic environments is the core problem that the present invention needs to solve. Summary of the invention

[0005] In order to solve the above problems, the present invention proposes a mechanical tension gravity energy storage power generation device based on a rail train, comprising at least one group of power stations arranged directly below the track, the track is arranged from high to low to form a downhill track, a train runs on the track, and driving plates are symmetrically arranged on the inner sides of the wheel groups on both sides of the train;

[0006] The power station includes a box buried under the track, a support base arranged in the box, and a power generation component slidably arranged on the support base. The power generation component is arranged in the middle of the track. The power generation component is connected to a tensioning rope component. The tensioning rope component includes a tensioning steel wire rope. One end of the tensioning steel wire rope is connected to the power generation component and is arranged in the box, and the other end is connected to a mechanical tensioning adjustment component. The mechanical tensioning adjustment component is arranged on the outside of the track. The mechanical tensioning adjustment component drives the power generation component by adjusting the tensioning force of the tensioning steel wire rope and presses it toward the driving plate on the train.

[0007] Furthermore, the power generation component includes a friction wheel, a generator and a storage device electrically connected to the generator. The friction wheels are provided in two groups, each of which is slidably arranged on the top of the support base through a friction wheel seat, the connecting axis of the two friction wheels is perpendicular to the track, and the tensioning rope assembly connects the two friction wheel seats. When generating electricity, the friction wheel is pressed toward the corresponding side drive plate under the action of the tensioning rope assembly. The generator is arranged under the support base, and the friction wheel is connected to the rotating shaft of the generator through a transmission member.

[0008] Furthermore, there are parallel slide rails on the top table of the support base, two groups of parallel sliding blocks are arranged on the parallel slide rails, two friction wheel seats are respectively installed on a group of sliding blocks, and the parallel slide rails are perpendicular to the track in the horizontal direction.

[0009] Furthermore, the tensioning rope assembly also includes a movable pulley 1 arranged on each friction wheel seat and a fixed pulley 1 arranged on the inner wall of the box body, and the two groups of friction wheel seats on the same power generation assembly are both equipped with a movable pulley 1 on the opposite side along the slide rail direction, and at least one fixed pulley 1 is arranged on the inner wall of the box body near each movable pulley 1, and the movable pulley 1 and the fixed pulley 1 are connected to the mechanical tensioning adjustment assembly through a tensioning steel wire rope, one end of the tensioning steel wire rope is fixed in the box body, and the other end passes around the movable pulley 1 closest to the fixed end, then passes around multiple fixed pulleys 1, and then passes around another movable pulley 1, and then is connected to the mechanical tensioning adjustment assembly.

[0010] Furthermore, the power generation device includes multiple groups of power stations, which are arranged on multiple tracks. Multiple groups of power stations arranged at the same horizontal height form a row of power station groups. The same row of power station groups uses the same tensioning steel wire rope to connect the movable pulley 1 and the fixed pulley 1 of each power station in series, and then connect to the same mechanical tensioning adjustment component on the outside of the track.

[0011] Furthermore, through holes for passing tensioning wire ropes are provided on boxes of adjacent power stations of the power station group, and wire passing grooves are provided in track slopes of adjacent power stations.

[0012] Furthermore, the tensioning wire rope in the power station group is connected in series starting from the power station farthest from the mechanical tensioning adjustment component. Each power station is wound around the movable pulley farthest from the mechanical tensioning adjustment component, and then passed through multiple fixed pulleys, wound out from another movable pulley, and connected to the next adjacent group of power stations. The tensioning wire rope is wound out from the movable pulley of the last power station and then connected to the mechanical tensioning adjustment component.

[0013] Furthermore, the mechanical tensioning and adjusting assembly includes a weight frame and a plurality of weight blocks, the weight frame is fixedly installed on the outer side of the track of the corresponding power station, at least two fixed pulleys 2 are arranged on the weight frame, one fixed pulley 2 is arranged below the weight frame, and the other fixed pulley 2 is arranged on the top of the weight frame, the weight frame is also provided with a branch rod, a weight line is connected to the branch rod, one end of the weight line is fixed to the branch rod, and the other end is connected to a plurality of weight blocks through the support of movable pulley 2, after the tensioning steel wire rope of the tensioning rope assembly is wound out of the box body, it is successively wound through the fixed pulley 2 below the weight frame and the fixed pulley 2 above the weight frame, and then connected to the movable pulley 2 through the pulley frame body.

[0014] Furthermore, the generator is provided with two groups, the support base is in an inverted "Y" shape, and the two groups of generators are symmetrically arranged on the two oblique sides of the inverted "Y"-shaped support base. Each generator is connected to the corresponding friction wheel at an angle through a transmission member, and the transmission member adopts a universal cross-axis telescopic coupling. The friction wheel and the rotating shaft of the generator are connected through the universal cross-axis telescopic coupling.

[0015] A mechanically tensioned gravity energy storage power generation track line based on a rail train comprises a track arranged from top to bottom, with a plurality of the above-mentioned power generation devices arranged below the track.

[0016] The beneficial effects of the present invention are as follows:

[0017] The present invention optimizes the structure of the power generation device, disposes the commonly used external power station inside the track, and adopts vertical installation, thereby reducing the width of the power generation track line in the gravity energy storage and improving the geographical adaptability of the track layout.

[0018] The tensioning structure that drives the power generation component to be in compression contact with the train drive plate of the present invention adopts a tensioning rope component and a mechanical tensioning adjustment component of pure mechanical design, and the tensioning rope component is arranged in a box body, and the mechanical tensioning adjustment component is arranged on the outside of the track, canceling the conventional hydraulic tensioning mode, adopting a pure mechanical structure, not affected by the ambient temperature, and having the advantages of simple structure, low cost, easy maintenance, reliable use, etc. The mechanical tensioning structure is simple, and no complex control system and sensor are adopted. When in use, the number and weight of the heavy hammer blocks are adjusted according to the running conditions of the train. It only needs to ensure that the compression force is slightly larger, and it can be used for a long time after one adjustment. At the same time, the mechanical tensioning adjustment component and the built-in box of the power station are separated and installed outside the track, which is convenient for maintenance and adjustment, and is more suitable for the environment of gravity energy storage projects.

[0019] When the power generation device of the present invention is provided with multiple groups of power stations, power stations at the same horizontal height form a power station group, and the tensioning rope assembly of the power station group uses the same tensioning steel wire rope to connect all the power generation components in the power station in series and connect them to a mechanical tensioning adjustment assembly. The tensioning force of the same tensioning steel wire rope is consistent. Through a group of mechanical tensioning adjustment assemblies, the tension of multiple power stations and train drive plates can be adjusted at the same time, which not only reduces the number of mechanical tensioning adjustment assemblies installed and saves application costs, but also reduces the installation space width, which is more suitable for multi-track transportation and areas with narrow slope width. In addition, it also greatly reduces the intensity of manpower debugging and realizes one-time adjustment of the entire row of power stations.

[0020] 4. In the present invention, the friction wheel and the generator are connected by a universal cross-shaped retractable coupling, so that the friction wheel and the generator are installed at an angle, which increases the installation space of the generator, so that a generator with larger power and size can be set in the selection configuration of the generator. In addition, the installation method in which the generator is installed at an angle to the friction wheel in the vertical direction, although it increases the height of the power station box, reduces the length and width of the power station and reduces the occupied area. At the same time, the reduction in the length and width of the power station can make its force frame more rigid and less prone to deformation, and when a train passes by, there is less vibration and the operation is smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a power station of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the connection between the box body of the power generation device of the present invention and the track;

[0023] Figure 3 This is a schematic diagram of the structure of a power station from above according to the present invention;

[0024] Figure 4 It is a schematic structural diagram of the power generation assembly of the present invention;

[0025] Figure 5 It is a schematic diagram of the driving plate structure of the train of the present invention;

[0026] Figure 6 It is a schematic diagram of the overall structure of a power station group in a same row of the power generation device of the present invention;

[0027] Figure 7 It is a schematic diagram of the overall structure of a multi-row power station group of the power generation device of the present invention;

[0028] Figure 8 It is a schematic diagram of the overall structure of the power generation track line of the present invention;

[0029] The reference numerals in the accompanying drawings are as follows: 1-track; 2-train; 3-box; 4-support base; 61-friction wheel, 62-transmission member, 63-generator; 7-tensioning rope assembly; 73-friction wheel seat; 71-slide rail; 72-slider; 74-movable pulley one; 75-fixed pulley one; 76-tensioning wire rope; 8-mechanical tensioning adjustment assembly; 81-weight frame; 82-weight block; 83-fixed pulley two; 84-branch rod; 85-weight line; 86-movable pulley two; 5-frame; 6-wheel set; 9-drive plate; 10-through hole. DETAILED DESCRIPTION

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The present invention will be further described below in conjunction with the accompanying drawings: Example 1

[0033] See also Figure 1-Figure 5 A mechanical tension gravity energy storage power generation device based on a rail train includes a power station arranged directly below a track 1, a train 2 is arranged on the track 1 and travels from above the track 1 to below the track 1, and the track 1 is arranged from high to low to form a downhill track. The power generation device of this embodiment is mainly suitable for geographical environments with height differences, and realizes energy storage cycle through the mutual conversion of gravitational potential energy and electrical energy.

[0034] In this embodiment, the train 2 is composed of multiple flatbed transport vehicles connected by universal joints, each of which includes a frame 5, a loading plate arranged on the frame 5, a wheel set 6 installed on both sides below the frame 5, and two rows of driving plates 9 arranged in the middle of the bottom of the frame 5.

[0035] The power station includes a box body 3 buried under the track 1, a support base 4 arranged in the box body 3, and a power generation component slidably arranged on the support base 4. The power generation component is arranged between two driving plates 9, and the power generation component is connected to a tensioning rope component 7. The tensioning rope component 7 includes a tensioning steel wire rope 76. One end of the tensioning steel wire rope 76 is connected to the power generation component and is arranged in the box body 3, and the other end is connected to a mechanical tensioning adjustment component 8. The mechanical tensioning adjustment component 8 is arranged on the outside of the track 1. When the train 2 enters the power generation working mode, the mechanical tensioning adjustment component 8 drives the power generation component to be pressed toward the driving plate 9 of the train 2 by adjusting the tensioning force of the tensioning steel wire rope 76.

[0036] This embodiment optimizes the structure of the power generation device, disposes the commonly used external power station inside the track 1, and adopts vertical installation, which reduces the width of the power generation device in the gravity energy storage and improves the geographical adaptability of the track 1 layout.

[0037] The power generation assembly includes a friction wheel 61, a transmission member 62, a generator 63 and a storage device electrically connected to the generator 63. The support base 4 is used to fix the generator 63, the friction wheel 61 and the transmission member 62. Two groups of friction wheels 61 are provided. Each friction wheel 61 is slidably set on the top of the support base 4 through a friction wheel seat 73. The connecting axis of the two friction wheels 61 is perpendicular to the track 1.

[0038] There are parallel slide rails 71 on the top table of the support base 4, and two groups of parallel sliders 72 are arranged on the parallel slide rails 71. Two friction wheel seats 73 are respectively arranged on a group of sliders 72. The parallel slide rails 71 are perpendicular to the track 1 in the horizontal direction. Each friction wheel seat 73 drives the friction wheel 61 to slide within the limited range of the slide rail 71 through the slider 72. When the train 2 has not passed the power station, the friction wheel seat 73 is pulled by the tensioning rope assembly 7 to pull the corresponding friction wheel 61 to one end of the slide rail 71. Limiting blocks are arranged at both ends of the slide rail 71 to limit the sliding position of the friction wheel seat 73. When the train 2 passes the power station, the driving plate 9 on the train 2 squeezes and rubs to drive the friction wheel 61 to move to the middle of the slide rail 71, but is pressed toward the driving plate 9 under the tensioning force of the tensioning wire rope 76.

[0039] In this embodiment, in order to increase the installation space of the generator 63, the support base 4 is in an inverted "Y" shape, and two groups of generators 63 are provided. The two groups of generators 63 are symmetrically arranged on the two oblique sides of the inverted "Y"-shaped support base 4. The friction wheel 61 and the generator 63 are installed and connected at an angle through the transmission member 62. The transmission member 62 adopts a universal cross-axis telescopic coupling, and the friction wheel 61 and the rotating shaft of the generator 63 are connected through the universal cross-axis telescopic coupling.

[0040] In this embodiment, a low-speed generator 63 can directly match the rotation speed of the friction wheel 61, and a gearbox is no longer needed. The friction wheel 61 and the generator 63 are connected by a universal cross-axis telescopic coupling, so that the friction wheel 61 and the generator 63 can be installed at an angle, thereby increasing the installation space of the generator 63, so that a generator with larger power and size can be set in the optional configuration of the generator 63.

[0041] Although the installation method of the power generation components at an angle in the vertical direction increases the height of the power station box 3, it reduces the length and width of the power station and reduces the floor space. At the same time, the reduced length and width of the power station can make its load-bearing frame more rigid and less prone to deformation. When the train 2 passes by, there is less vibration and the operation is smoother. This power station installation method is suitable for areas with narrow geographical locations and improves the geographical adaptability of the track 1 layout.

[0042] In this embodiment, the tensioning rope assembly 7 includes a movable pulley 74 arranged on each friction wheel seat 73, a fixed pulley 75 arranged on the inner wall of the box body 3, and a tensioning wire rope 76. The two groups of friction wheel seats 73 on the same power generation assembly are both equipped with movable pulleys 74 on the opposite sides along the direction of the slide rail 71. At least one fixed pulley 75 is arranged on the inner wall of the box body 3 near each movable pulley 74. The movable pulley 74 and the fixed pulley 75 are connected to the mechanical tensioning adjustment assembly through the tensioning wire rope 76. One end of the tensioning wire rope 76 is fixed in the box body 3, and the other end bypasses the movable pulley 74 closest to the fixed end, then bypasses multiple fixed pulleys 75, and then bypasses another movable pulley 74 and then goes out to connect to the mechanical tensioning adjustment assembly 8.

[0043] The mechanical tensioning and adjusting assembly 8 includes a weight frame 81 and a plurality of weight blocks 82. The weight frame 81 is fixedly installed on the outer side of the track 1 at the corresponding power station. The weight frame 81 is provided with at least two fixed pulleys 83, one fixed pulley 83 is provided below the weight frame 81, and the other fixed pulley 83 is provided on the top of the weight frame 81. The weight frame 81 is also provided with a branch rod 84, and a weight line 85 is connected to the branch rod 84. One end of the weight line 85 is fixed to the branch rod 84, and the other end is supported and connected to a plurality of weight blocks 82 through the movable pulley 86. After the tensioning steel wire rope 76 of the tensioning rope assembly 7 is wound out of the box body 3, it is wound through the fixed pulley 83 below the weight frame 81 and the fixed pulley 83 above the weight frame 81 in turn, and then connected to the movable pulley 86 through the weight frame 81.

[0044] In conventional design, four fixed pulleys 75 are arranged on the inner wall of the power station box 3, and the four fixed pulleys 75 are evenly divided into two groups, which are arranged inside the box 3 opposite to the two movable pulleys 74.

[0045] In this embodiment, the box body 3 of the power station is installed and fixed in the track 1, and its installation height is lower than the ground surface. The tensioning rope assembly 7 and the mechanical tensioning adjustment assembly 8 form a mechanical tensioner, which contains 7 fixed pulleys and 3 movable pulleys. The pulley group is formed by winding the tensioning wire rope 76. The tensioning strength is controlled by a number of weight blocks 82 on the weight line 85. The number of weight blocks 82 can be manually removed or increased. The setting of the movable pulley can save labor and reduce the use of weights. Each additional wire rope driving the pulley in the wire rope system can reduce the weight by half.

[0046] The gravity energy storage system is provided with a general controller, which is provided with a pressure sensor on the friction wheel 61 or the tensioning wire rope 76. The train 2 fully loaded with material blocks runs downward under the action of its own gravity. When it passes the power station, the driving plate 9 on the train 2 squeezes and rubs to drive the friction wheel 61, and transmits the power of the train 2 and the material to the friction wheel 61 and outputs torque, which is transmitted to the generator 63 through the transmission member 62 so that the generator 63 converts kinetic energy into electrical energy and stores energy in the storage device. The power generation principle of the generator 63 is conventional technology and will not be repeated here.

[0047] During the operation of the train 2, the pressure sensor can collect the current clamping force and compare it with the preset clamping force. By measuring the clamping force, the number of weight blocks 82 is manually increased or decreased to adjust the tensioning force to maintain a suitable clamping force, ensuring that the gravitational potential energy of the train 2 is stably converted into kinetic energy when it goes downward, and then the generator 63 generates electricity for storage. Since the transportation path of the train 2 remains unchanged during power generation and transportation, in actual applications, the tensioning force of the drive plate 9 and the friction wheel 61 can remain basically unchanged after the initial adjustment. The current gravity energy storage system is often deployed in mining areas and high-altitude and cold areas. The conventionally used hydraulic tensioning device has a wide range of applications and has the advantages of small size, light weight, compact structure, large output thrust, and real-time control of thrust size. However, it also has shortcomings such as hydraulic oil leakage and a small operating temperature range. The operating temperature of the hydraulic system is generally controlled between 15 degrees and 65 degrees, while the working environment of the gravity energy storage system is outdoors, and the ambient temperature often drops below zero degrees Celsius. When the hydraulic oil temperature is too low, the viscosity of the hydraulic oil increases, the fluidity is poor, the resistance is large, the working efficiency is low, and it is easy to damage the hydraulic motor, valves, and pipelines. Therefore, the tensioner in this embodiment is a purely mechanical structure, which is not affected by the ambient temperature, and has the advantages of simple structure, low cost, easy maintenance, and reliable use. The mechanical tensioner has a simple structure and does not require a complex control system and sensor. When in use, the number and weight of the heavy hammer blocks 82 are adjusted according to the train operation conditions. It only needs to ensure that the pressing force is slightly larger, and it can be used for a long time after one adjustment. At the same time, the mechanical tensioning adjustment component 8 and the power generation component are separated and installed outside the track 1, which is convenient for maintenance and adjustment and is more suitable for the environment of gravity energy storage projects.

[0048] When the main controller of the transportation system receives feedback from the pressure sensor that the clamping force is abnormal, the main controller feeds back to the maintenance personnel. The maintenance personnel, based on the abnormal feedback position of the pressure sensor, finds that the clamping force is too small and increases the weight block 82 to tighten the tensioning wire rope 76 downward, so that the movable pulley 74 of the friction wheel seat 73 drives the friction wheel 61 toward the drive plate under the drive of the tensioning wire rope 76, thereby increasing the clamping force between the friction wheel 61 and the drive plate 9. After several rounds of adjustments and actual feedback from the train 2, the optimal clamping force is finally achieved. On the contrary, when the clamping force is too large, the actual requirement can be achieved by reducing the weight block 82. Example 2

[0049] Please refer to Figure 6-Figure 8 In an actual gravity energy storage power generation system, a plurality of descending tracks 1 are often arranged. The power generation device includes a plurality of power stations arranged at the same horizontal height to form a row of power station groups. The same row of power station groups uses the same tensioning wire rope 76 to connect the movable pulley 74 and the fixed pulley 75 of each power station in series, and then connects to the same mechanical tensioning adjustment component 8 on the outside of the track 1. The boxes 3 of adjacent power stations of the power station group are provided with through holes 10 for passing the tensioning wire rope 76, and the track slopes of adjacent power stations are provided with threading grooves.

[0050] like Figure 6 The embodiment shown is a group of power stations arranged at the same horizontal height to form a row of power stations, wherein the tensioning wire rope 76 is connected in series from the power station farthest from the mechanical tensioning adjustment component 8 on the left side, and the fixed end of the tensioning wire rope 76 is arranged in the box body 3 of the leftmost power station. Each power station is wound from the movable pulley 74 farthest from the mechanical tensioning adjustment component 8, and then wound from another movable pulley 74 through multiple fixed pulleys 75 to the next adjacent group of power stations. The tensioning wire rope 76 is wound from the movable pulley 74 of the last power station and connected to the mechanical tensioning adjustment component 8.

[0051] The tensioning force of the same tensioning wire rope 76 is consistent. Through a set of mechanical tensioning adjustment components 8, the tension of multiple power stations and the train 2 drive plate 9 can be adjusted at the same time, which not only reduces the number of mechanical tensioning adjustment components 8 to be installed, saving application costs, but also reduces the installation width, making it more suitable for multi-track transportation and areas with narrow slope widths. In addition, it also greatly reduces the intensity of manpower debugging and realizes a one-time adjustment of the entire row of power stations.

[0052] like Figure 7The figure shows the overall structure of a multi-row power station group, in which six tracks 1 are arranged, and the power stations on adjacent tracks are staggered to form two rows of power station groups. When multiple tracks 1 are arranged in parallel, it is necessary to reduce the spacing between the parallel tracks 1, thereby reducing the overall floor area, saving space, and reducing construction costs. However, the floor area width of the power station is greater than the width of the track 1, so the power stations on adjacent tracks 1 cannot be directly arranged side by side and all connected in series and tensioned at the same time with a tensioning wire rope 76. The power stations on adjacent tracks 1 can be staggered in front and back, and then the power stations at the same horizontal position are tensioned in series with the tensioning wire rope 76, as shown in FIG. Figure 7 As shown, the power stations under the first, third and fifth tracks 1 are connected in series and tensioned simultaneously with a tensioning wire rope 76, and the power stations under the second, fourth and sixth tracks 1 are connected in series and tensioned simultaneously with a tensioning wire rope 76.

[0053] A gravity energy storage power generation track line based on a rail train comprises a track 1 arranged from top to bottom, and a plurality of the above-mentioned power generation devices are arranged below the track 1.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A mechanical tension gravity energy storage power generation device based on a rail train, characterized in that: It includes at least one group of power plants arranged directly below the track, the track is arranged from high to low to form a downhill track, a train runs on the track, and driving plates are symmetrically arranged on the inner sides of the wheel sets on both sides of the train; The power station comprises a box buried under the track, a support base arranged in the box, and a power generation component slidably arranged on the support base. The power generation component is arranged in the middle of the track. The power generation component is connected to a tension rope component. The tension rope component comprises a tension wire rope. One end of the tension wire rope is connected to the power generation component and arranged in the box, and the other end is connected to a mechanical tension adjustment component. The mechanical tension adjustment component is arranged outside the track. The mechanical tension adjustment component drives the power generation component by adjusting the tension of the tension wire rope and presses it against the driving plate on the train. The power generation assembly includes a friction wheel, a generator, and a power storage device electrically connected to the generator. The friction wheels are provided in two groups, each of which is slidably arranged on the top of the support base through a friction wheel seat, and the connecting axis of the two friction wheels is perpendicular to the track. The tension rope assembly connects the two friction wheel seats. When power generation is in progress, the friction wheel is pressed toward the corresponding side drive plate under the action of the tension rope assembly. The generator is arranged below the support base, and the friction wheel is connected to the rotating shaft of the generator through a transmission member. The tensioning rope assembly also includes a movable pulley 1 arranged on each friction wheel seat and a fixed pulley 1 arranged on the inner wall of the box body. The two groups of friction wheel seats on the same power generation assembly are both equipped with movable pulleys 1 on the opposite sides along the slide rail direction. At least one fixed pulley 1 is arranged on the inner wall of the box body near each movable pulley 1. The movable pulley 1 and the fixed pulley 1 are connected to the mechanical tensioning adjustment assembly through a tensioning steel wire rope. One end of the tensioning steel wire rope is fixed in the box body, and the other end passes around the movable pulley 1 closest to the fixed end, then passes around multiple fixed pulleys 1, and then passes around another movable pulley 1, and then is connected to the mechanical tensioning adjustment assembly.

2. A mechanical tension gravity energy storage power generation device based on a rail train as claimed in claim 1, characterized in that: The top table of the support base is provided with parallel slide rails, on which two groups of parallel sliding blocks are arranged, and two friction wheel seats are respectively installed on a group of sliding blocks, and the parallel slide rails are perpendicular to the tracks in the horizontal direction.

3. A mechanical tension gravity energy storage power generation device based on a rail train as claimed in claim 1, characterized in that: The power generation device includes multiple groups of power stations, which are arranged on multiple tracks. Multiple groups of power stations arranged at the same horizontal height form a row of power station groups. The same row of power station groups are connected to the same mechanical tensioning adjustment component on the outside of the track after the movable pulley 1 and the fixed pulley 1 of each power station are serially wound through the same tensioning wire rope.

4. A mechanical tension gravity energy storage power generation device based on a rail train as claimed in claim 3, characterized in that: Through holes for passing tensioning wire ropes are provided on boxes of adjacent power stations of the power station group, and wire passing grooves are provided in track slopes of adjacent power stations.

5. A mechanical tension gravity energy storage power generation device based on a rail train as claimed in claim 3, characterized in that: The tensioning steel wire rope in the power station group is connected in series starting from the power station farthest from the mechanical tensioning adjustment component. Each power station is wound around the movable pulley farthest from the mechanical tensioning adjustment component, then passed through multiple fixed pulleys, wound out from another movable pulley, and connected to the next adjacent group of power stations. The tensioning steel wire rope is wound out from the movable pulley of the last power station and then connected to the mechanical tensioning adjustment component.

6. A mechanical tension gravity energy storage power generation device based on a rail train as described in any one of claims 1 to 5, characterized in that: The mechanical tensioning and adjusting assembly comprises a weight frame and a plurality of weight blocks, the weight frame is fixedly mounted on the outer side of the track of the corresponding power station, at least two fixed pulleys 2 are arranged on the weight frame, one fixed pulley 2 is arranged below the weight frame, and the other fixed pulley 2 is arranged on the top of the weight frame, the weight frame is also provided with a branch rod, a weight line is connected to the branch rod, one end of the weight line is fixed to the branch rod, and the other end is connected to a plurality of weight blocks via the support of movable pulley 2, after the tensioning steel wire rope of the tensioning rope assembly is wound out of the box body, it is wound through the fixed pulley 2 below the weight frame and the fixed pulley 2 above the weight frame in turn, and then connected to the movable pulley 2 through the pulley frame body.

7. A mechanical tension gravity energy storage power generation device based on a rail vehicle as claimed in claim 1, characterized in that: The generator is provided with two groups, the support base is in an inverted "Y" shape, and the two groups of generators are symmetrically arranged on the two oblique sides of the inverted "Y"-shaped support base. Each generator is connected to the corresponding friction wheel at an angle through a transmission member, and the transmission member adopts a universal cross-axis telescopic coupling. The friction wheel and the rotating shaft of the generator are connected through the universal cross-axis telescopic coupling.

8. A mechanical tension gravity energy storage power generation track line based on a rail train, characterized in that: It comprises a track arranged from top to bottom, and a plurality of power generation devices as claimed in claim 1 are arranged below the track.

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