A mechanical power generation system and method based on track vibration

Abstract

The present application relates to a kind of mechanical power generation system and method based on track vibration, mainly solve the current railway track vibration energy transmission, conversion, power generation, storage and release problem, its implementation method is: when charging, first by railway track vibration energy conversion device vertical vibration is transmitted to the energy converter installed on the way side;Second, the vertical reciprocating motion mechanical energy is converted into rotary mechanical energy to drive generator power generation;Finally, generator converts rotary mechanical energy into electrical energy to charge battery pack;When discharging, charge-discharge controller controls battery discharge, and carries out power output through inverter matching load voltage.This kind of power generation system and method based on track vibration simple structure, can maximize the vertical energy of track, can achieve the effect of retaining low frequency and weakening high frequency vibration, improve vibration conversion efficiency and energy collection coverage density of track, improve energy collection efficiency.

Description

Technical Field

[0001] The present invention belongs to the field of electromechanical technology, and relates to a mechatronic product for converting, storing and releasing railway track vibration energy, and in particular to a mechanical power generation system and method based on track vibration, which can be used to power trackside equipment in the railway and urban rail transit fields. Background Art

[0002] With the sustained, stable, and rapid development of the national economy and the continuous improvement of people's living standards, rail transit, a means of transportation characterized by high capacity, high speed, frequent service, safety, comfort, high punctuality, all-weather operation, low fares, and energy conservation and environmental protection, is gaining increasing popularity. Railway operating companies have also invested significant manpower and material resources in maintenance to ensure punctuality, safety, and comfort, placing significant financial pressure on railway bureaus, urban rail transit, subway operators, and other track operating companies.

[0003] In recent years, with the development of technologies such as the Internet and the Internet of Things, various types of automated detection and monitoring equipment have been widely used in the rail transit sector. Installed trackside to monitor various signal data, this significantly reduces maintenance costs. However, this also increases the costs of laying cables and supplying electricity for these monitoring devices. Since various monitoring devices are often added based on demand after a line is opened, they place significant pressure on the original line's design capacity. Therefore, the use of track vibration to generate electricity, with on-site networking, storage, and power supply, is not only environmentally friendly and efficient, but also significantly reduces the costs of laying cables and supplying electricity for monitoring equipment.

[0004] Currently, domestic renewable energy power generation technologies primarily utilize renewable energy sources such as solar energy, biomass, wind energy, geothermal energy, wave energy, ocean current energy, and tidal energy, achieving power generation through existing technologies. However, for rail transit, which encompasses diverse geographical environments such as mountains, plains, plateaus, rivers, lakes, and seas, as well as tunnels, bridges, and underground engineering environments, the complex and confined spaces make it difficult to find renewable energy power generation methods that are adaptable to various environments. The only common characteristic is the significant vibration energy generated by the tracks over which vehicles travel. Therefore, a method for energy conversion, power generation, storage, and supply based on track vibration has emerged, characterized by its simple structure, strong environmental adaptability, and safety and environmental protection. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies of the above-mentioned existing technologies and to propose a mechanical power generation system and method based on orbital vibration that has a simple structure, can obtain the vertical energy of the orbit to the maximum extent, can retain low-frequency vibrations and weaken high-frequency vibrations, improve the vibration conversion efficiency and the density of energy collection coverage of the orbit, and improve the energy collection efficiency.

[0006] The objective of the present invention is achieved in this way. It relates to a mechanical power generation system based on track vibration, which is characterized by comprising: railway tracks, generator arrays and trains, the generator arrays are on both sides of the railway tracks, and when a train passes by the railway tracks, the railway tracks vibrate under the action of the train wheels, causing the generator arrays on both sides to generate electrical energy through vibration. The electrical energy generated by the vibration is used to charge a controlled battery pack. When the electrical energy of the battery pack reaches a threshold, the electrical energy is transmitted to the power grid through an inverter.

[0007] The generator set array includes a left generator set array and a right generator set array, and the left generator set array and the right generator set array have the same structure.

[0008] The indoor monitoring host is connected to the outdoor controller through the network to issue power supply instructions and monitor the operation of the outdoor controller; the rail bottom vibration trigger is connected to the outdoor controller through the network to trigger the battery charging instruction; each power generation module in the generator array is connected to the outdoor controller through a cable; the outdoor controller is connected to the battery pack and the inverter through cables respectively. On the one hand, it filters the electricity generated by the generator array and supplies power according to the charging specifications of the battery pack; on the other hand, when the outdoor controller receives a discharge instruction from the indoor monitoring host, the outdoor controller controls the battery pack to discharge, and the electricity released by the battery pack is converted into a specified standard of electricity through the inverter to supply power to the wayside equipment.

[0009] The generator array further includes energy conversion devices and generators distributed at intervals; the energy conversion devices convert vibration energy into generator rotor energy to the generator input shaft, and the generator generates electricity that can be input by the battery pack.

[0010] The energy conversion device includes: a frequency filter device, a short connecting rod, a long connecting rod, an upper transition plate, a lower transition plate, a support shaft, a bearing, a support seat, an anti-loosening top cover, a double-headed stud, an energy storage block, an upper cover barrel, an upper spring, a lower spring, a casing, a piston, a piston connecting rod, a crankshaft, an inertia wheel, a gearbox, an internal gear, a planetary gear, a central gear, an output shaft, and a coupling; the frequency filter device is connected to the bottom of the track by pressure contact; the frequency filter device is fixedly connected to one end of the short connecting rod by bolts, and the other end is fixedly connected to one side of the upper transition plate and the lower transition plate; the upper transition plate is fixedly connected to the lower transition plate by bolts and is clamped on the outer ring of the bearing, the inner ring of the bearing is fixed to the support seat by the support shaft, and the support seat is fixed by bolts On the roadbed; the other side of the upper transition plate and the lower transition plate are connected to one end of the long connecting rod by bolts, and the vertical position of the long connecting rod is tightened and fixed by the anti-loosening top cover and the energy storage block, and the anti-loosening top cover and the energy storage block are fixed to the upper cover barrel by studs, and the upper cover barrel adds the piston in the middle by the upper spring and the lower spring, and the lower spring is limited by the stopper at the lower edge of the upper cover barrel; the upper cover barrel is connected in sliding contact on the inner wall of the casing; the piston is connected to the crankshaft through the piston rod, one end of the crankshaft is fixedly connected to the inertia wheel, and the other end is connected to the internal gear through a key, and the internal gear transmits force to the central gear by meshing with the planetary gear; one end of the output shaft of the central gear is fixed to the gearbox casing wall through a bearing, and the other end is fixedly connected to the rotor shaft of the generator through a coupling.

[0011] The electric energy generated by the vibration is further described to charge the controlled battery pack. When the train approaches the area of ​​the generator array, the track vibration reaches the trigger value of the vibration trigger, and the trigger triggers the outdoor controller to turn on the charging mode. When the train passes through the generator array area, the vertical vibration of the bottom of the track between the two sleepers produces a large displacement. When the track vibrates, the frequency filter device in contact with the bottom of the rail vibrates and produces vertical displacement. The frequency filter device is equipped with a spring. When the spring vibrates in response, it will filter out most of the high-frequency vibrations. The displacement reaches the maximum at the low-frequency resonance. The vertical displacement of the frequency filter device drives the short connecting rod, upper transition plate, lower transition plate, and long connecting rod fixed to it to perform a seesaw motion around the support axis in the center of the bearing on the support seat, that is, when the short connecting rod moves downward, the long connecting rod moves upward, and conversely, when the short connecting rod moves upward, the long connecting rod moves downward, and the vertical displacement of the long connecting rod is amplified according to the length ratio of the short connecting rod to the long connecting rod to meet the energy conversion device for driving. The travel requirement is met; the long connecting rod is fastened to the stud by the anti-loosening top cover and the energy storage block. When the long connecting rod moves upward, it drives the upper cover barrel to move upward along the casing and compresses the lower spring to lift the piston, so that the kinetic energy is converted into gravitational potential energy. When the long connecting rod moves vertically downward, it drives the upper cover barrel to move downward along the casing and compresses the upper spring to drop the piston, releasing the gravity converted into kinetic energy and transmitted to the piston; while the piston moves downward, its vertical displacement drives the crankshaft to rotate through the piston rod; inertia wheels are installed on both sides of the piston rod to store mechanical energy when the crankshaft rotates; bearings at both ends of the crankshaft are fixed to the casing, and one end is connected to the internal gear by a key. When the crankshaft rotates, the internal gear rotates synchronously, and at the same time drives the planetary gear and the center gear to rotate; the output shaft of the center gear is fixed to the gearbox through a bearing. When the center gear rotates, the output shaft rotates together with the main shaft of the generator through the coupling, converting mechanical energy into electrical energy for output. The output power is controlled by the outdoor controller to charge the battery.

[0012] When the power of the battery pack reaches the threshold, the power is transmitted to the power grid through the inverter. This is achieved through the following steps: the indoor monitoring host detects the threshold of the battery pack and sends an external power supply instruction to the outdoor controller. The outdoor controller controls the discharge of the battery pack (including multiple groups); after the battery pack is discharged, the current flows through the outdoor controller to the inverter, converting the DC power into AC power that matches the roadside equipment standard for output.

[0013] The present invention relates to a mechanical power generation method based on track vibration, the steps are as follows:

[0014] In the first step, when the track vibration near the generator array area reaches the trigger value of the vibration trigger, the vibration trigger triggers the outdoor controller to start the battery pack charging mode;

[0015] In the second step, the outdoor controller queries the battery pack number, status and power level, and determines whether charging is required based on the battery pack power level:

[0016] (2a) When the outdoor controller determines that the battery pack is in an abnormal state or does not need to be charged, the outdoor controller shuts down all charging channels;

[0017] (2b) When the outdoor controller determines that the battery pack is in normal condition and needs to be charged, the outdoor controller selects to open the charging channels of one or more numbered battery packs for charging according to the battery saturation level;

[0018] In the third step, as the train passes through the generator array area, the vertical displacement generated by the track vibration drives the short and long connecting rods to perform a seesaw motion around the axis of the support base, with the directions in opposite vertical directions. When the long connecting rod moves downward, the drive block drives the piston to rotate about the crankshaft, thereby converting the vertical reciprocating mechanical energy of the track into the rotational mechanical energy of the crankshaft.

[0019] In the fourth step, the crankshaft rotates and the speed of the output shaft is increased by the gearbox, and then the rotational mechanical energy is transmitted to the generator main shaft through the coupling. Finally, the generator converts the rotational mechanical energy into electrical energy and charges the battery pack through the outdoor controller;

[0020] Step 5: When the train is away from the generator array area and the track vibration is lower than the trigger value of the vibration trigger, the outdoor controller turns off the battery pack charging mode;

[0021] Step 6: The indoor monitoring host sends a power supply command to the outdoor controller, and the outdoor controller starts the battery pack discharge mode;

[0022] Step 7: The outdoor controller queries the battery pack number and power level, and determines whether it can supply power to the outside based on the battery pack power level:

[0023] (7a) When the outdoor controller determines that the battery is low and cannot supply power to the outside, the outdoor controller will feedback the power failure information to the indoor monitoring host and wait for further instructions;

[0024] (7b) When the outdoor controller determines that it can supply power to the outside, the outdoor controller selects to open the discharge channels of one or more numbered battery groups according to the queried battery saturation level;

[0025] In the eighth step, after the battery pack is discharged, the current passes through the outdoor controller and inverter respectively, and finally the DC power is converted into matching AC power to power the roadside equipment.

[0026] The present invention has the following advantages:

[0027] 1) The structure is simple. By transmitting the vertical vibration of the track to the trackside, the energy conversion device is not restricted by the narrow space at the bottom of the track.

[0028] 2) The energy absorption device is in direct contact with the rail bottom area between the two sleepers, ensuring that the device can absorb the vertical energy of the track to the maximum extent.

[0029] 3) The frequency filter device used for rail bottom energy absorption absorbs energy by installing a spring with a frequency close to the rail resonance frequency, which can achieve the effect of retaining low-frequency vibration and weakening high-frequency vibration, thereby improving the vibration conversion efficiency.

[0030] 4) An array formed by arranging multiple power generation modules in sequence between the sleepers on both sides of the track can increase the density of energy collection coverage of the track, which is conducive to reducing the footprint and improving energy collection efficiency.

[0031] The present invention will be further described below in conjunction with the accompanying drawings of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the rail vibration power generation system of the present invention;

[0033] Figure 2 This is a schematic diagram of the array of orbital vibration generator sets of the present invention;

[0034] Figure 3 This is a schematic diagram of the power generation module of the present invention;

[0035] Figure 4A Schematic diagram of the process of converting the structural kinetic energy of the energy conversion device of the present invention into gravitational potential energy;

[0036] Figure 4B Schematic diagram of the process of converting gravitational potential energy into kinetic energy in the energy conversion device structure of the present invention;

[0037] Figure 5 A schematic diagram of the charging process of the rail vibration power generation system of the present invention;

[0038] Figure 6 Schematic diagram of the discharge process of the rail vibration power generation system of the present invention;

[0039] Figure 7 This is a schematic diagram of the working process of the orbital vibration power generation system of the present invention.

[0040] In the figure: 1. Indoor monitoring host; 2. Outdoor controller; 3. Generator array; 31. Energy conversion device; 311. Frequency filter; 312. Short connecting rod; 313. Long connecting rod; 314. Upper transition plate; 315. Lower transition plate; 316. Support shaft; 317. Bearing; 318. Support seat; 319. Anti-loosening top cover; 320. Stud; 321. Energy storage block; 322. Upper cover barrel; 323. Upper spring; 324. Lower spring; 325. Casing; 326. Piston; 327. Piston connecting rod; 328. Crankshaft; 329. Inertia wheel; 33. Gearbox; 331. Internal gear; 332. Planetary gear; 333. Central gear; 334. Output shaft; 335. Coupling; 34. Generator; 4. Vibration trigger; 5. Battery pack; 6. Inverter; 7. Wayside equipment; 8. Left generator array; 9. Right generator array; 10. Railway track; 11. Sleepers. DETAILED DESCRIPTION

[0041] In order to further illustrate the technical means and methods adopted by the present invention to achieve the predetermined purpose, the specific implementation methods, structural features and methods of the present invention are described in detail below with reference to the accompanying drawings and examples.

[0042] like Figure 1 、 Figure 2 As shown, the present invention relates to a mechanical power generation system and method based on track vibration, which is characterized by comprising: a railway track 10, a generator array 3 and a train, wherein the generator array 3 is located on the side of the railway track 10. When a train passes through the railway track 10, the vibration generated by the train on the railway track 10 causes the generator array 3 on the side to generate electricity through vibration. The electricity generated by the vibration charges the controlled battery pack 5. When the electricity of the battery pack 5 reaches a threshold, the electricity is transmitted to the power grid through the inverter 6.

[0043] The generator array 3 includes a left generator array 8 and a right generator array 9 . The left generator array 8 and the right generator array 9 have the same structure.

[0044] like Figure 1As shown, the indoor monitoring host 1 is connected to the outdoor controller 2 via the network to issue power supply instructions and monitor the operation of the outdoor controller 2; the rail bottom vibration trigger 4 is connected to the outdoor controller 2 via the network to trigger the battery charging instruction; each power generation module in the generator array 3 is connected to the outdoor controller 2 via a cable; the outdoor controller 2 is connected to the battery pack 5 and the inverter 6 via cables respectively, on the one hand, filtering the electricity generated by the generator array and supplying power according to the charging specifications of the battery pack 5; on the other hand, when the outdoor controller 2 receives the discharge instruction from the indoor monitoring host 1, the outdoor controller 2 controls the battery pack 5 to discharge, and the electricity released by the battery pack 5 is converted into electricity of a specified standard through the inverter 6 to supply power to the wayside equipment 7.

[0045] The generator array 3 includes energy conversion devices 31 and generators 34 that are distributed at intervals. The energy conversion device 31 converts vibration energy into rotor energy of the generator 34 and inputs it into the input shaft of the generator 34. The generator 34 then generates electricity that can be fed into the grid.

[0046] like Figure 3 、 Figure 4A 、 Figure 4B As shown, the energy conversion device 31 includes: an energy absorption unit, an energy conduction unit and an energy conversion unit. The energy absorption unit is mechanically connected to the input end of the energy conversion unit through the energy conduction unit, and the output end of the energy conversion unit is connected to the rotor shaft of the generator 34 through the speed change unit.

[0047] The energy absorption unit includes: a frequency filter device 311 and a short connecting rod 312. The frequency filter device 311 is connected to the bottom of the track by pressure contact; the frequency filter device 311 is fixedly connected to one end of the short connecting rod 312 by a bolt.

[0048] The energy conduction unit includes: a short connecting rod 312, a long connecting rod 313, an upper transition plate 314, a lower transition plate 315, a support shaft 316, a bearing 317, and a support seat 318. The other end of the short connecting rod 312 is fixedly connected to one side of the upper transition plate 314 and the lower transition plate 315. The upper transition plate 314 and the lower transition plate 315 are fixedly connected by bolts to form an upper and lower circular connection structure; and are stuck on the outer ring of the bearing 317; the inner ring of the bearing 317 is fixed to the support seat 318 through the support shaft 316, and the support seat 318 is fixed to the roadbed through bolts; the other side of the upper transition plate 314 and the lower transition plate 315 is connected to one end of the long connecting rod 313 through bolts.

[0049] The energy conversion unit includes: a locking cover 319, a stud 320, an energy storage block 321, an upper cover barrel 322, an upper spring 323, a lower spring 324, a casing 325, a piston 326, a piston connecting rod 327, a crankshaft 328, an inertia wheel 329, a gearbox 33, an internal gear 331, a planetary gear 332, a central gear 333, an output shaft 334, and a coupling 335; the vertical position of the long connecting rod 313 is tightened and fixed by the locking cover 319 and the energy storage block 321, and the locking cover 3 19 and the energy storage block 321 are fixed to the upper cover barrel 322 through the stud 320. The upper cover barrel 322 adds the piston 326 in the middle through the upper spring 323 and the lower spring 324. The lower spring 324 is limited by the stopper at the lower edge of the upper cover barrel 322; the upper cover barrel 322 is in sliding contact connection on the inner wall of the casing 325; the piston 326 is connected to the crankshaft 328 through the piston connecting rod 327, one end of the crankshaft 328 is fixedly connected to the inertia wheel 329, and the other end of the crankshaft 328 is connected to the rotor shaft of the generator 34.

[0050] like Figure 3 As shown, the other end of the crankshaft 328 is connected to the rotor shaft of the generator 34 via a key to the internal gear 331 , and the internal gear 331 transmits force to the central gear 333 by meshing with the planetary gears 332 .

[0051] One end of the output shaft 334 of the central gear 333 is fixed to the housing wall of the gearbox 33 through a bearing, and the other end is fixedly connected to the rotor shaft of the generator 34 through a coupling 335.

[0052] like Figure 3 、 Figure 4A 、 Figure 4B 、 Figure 5As shown, the electric energy generated by the vibration is used to charge the controlled battery pack 5. When the train approaches the area of ​​the generator array 3, the track vibration reaches the trigger value of the vibration trigger 4, and the trigger triggers the outdoor controller 2 to turn on the charging mode. When the train passes through the area of ​​the generator array 3, the bottom of the railway track 10 between the two sleepers 11 vibrates vertically to produce a large displacement. When the railway track 10 vibrates, it causes the frequency filter device 311 in contact with the bottom of the rail to vibrate and produce vertical displacement. The frequency filter device 311 is equipped with a spring. When the spring vibrates in response, it will filter out most of the high-frequency vibrations. The displacement reaches the maximum when the low-frequency resonance occurs. The frequency filter device The vertical displacement of 311 drives the short connecting rod 312, the upper transition plate 314, the lower transition plate 315, and the long connecting rod 313 fixed to it to do a seesaw motion around the support shaft 316 in the center of the bearing 317 on the support seat 318, that is, when the short connecting rod 312 moves downward, the long connecting rod 313 moves upward, and conversely, when the short connecting rod 312 moves upward, the long connecting rod 313 moves downward, and the vertical displacement of the long connecting rod 313 is amplified according to the length ratio of the short connecting rod 312 to the long connecting rod 313 to meet the travel requirement of the energy conversion device 31 for driving; the long connecting rod 313 is supported by the anti-loosening top cover 319 The energy storage block 321 is fastened to the stud 320. When the long connecting rod 313 moves vertically upward, it drives the upper cover barrel 322 to move upward along the casing 325 and compresses the lower spring 324 to lift the piston 326, so that the kinetic energy is converted into gravitational potential energy. When the long connecting rod 313 moves vertically downward, it drives the upper cover barrel 322 to move downward along the casing 325 and compresses the upper spring 323 to drop the piston 326, releasing the gravity converted into kinetic energy and transmitted to the piston 326. While the piston 326 moves downward, its vertical displacement drives the crankshaft 328 to rotate through the piston connecting rod 327. The piston connecting rod 313 Inertia wheels 329 are installed on both sides of 27, storing mechanical energy when the crankshaft 328 rotates; the crankshaft 328 is supported and fixed on the housing 325 by bearings at both ends, and one end is connected to the internal gear 331 through a key. When the crankshaft 328 rotates, the internal gear 331 rotates synchronously, and at the same time drives the planetary gears 332 and the central gear 333 to rotate; the output shaft 334 of the central gear 333 is fixed to the gearbox 33 through bearings. When the central gear 333 rotates, the output shaft 334 rotates together with the main shaft of the generator 34 through the coupling 335, converting the mechanical energy into electrical energy for output. The output electricity is controlled by the outdoor controller 2 to charge the battery.

[0053] like Figure 4A and Figure 4BAs shown, the energy conversion device 31 of the present invention has three working modes: vibration energy absorption process, vibration energy transmission process and vibration energy conversion process: the vibration energy absorption process includes a frequency filtering device 311 installed at the bottom of the rail and in contact with the rail. When the train passes, the rail vibration is reduced by the frequency filtering device, and its vibration response filters most of the high-frequency vibrations and retains the low-frequency vibrations. When the frequency filtering device 311 resonates, the energy absorbed by the vibration conversion device is the largest.

[0054] Vibration energy transmission includes: the frequency filtering device 311 is installed on the connecting rod, and the middle of the connecting rod is connected to the middle support seat 318 through the support shaft 316. After the frequency filtering device 311 vibrates, it generates vertical displacement, which drives the short connecting rod 312 to move vertically. At the same time, the long connecting rod 313 generates reverse vertical vibration with the support seat 318 as the center, and the orbital vibration energy is transmitted to the energy conversion device 31 through the connecting rod.

[0055] The vibration energy conversion includes: the driving block of the energy conversion device 31 is fixedly connected to the long connecting rod 313. When the long connecting rod 313 vibrates vertically, it drives the driving block to vibrate vertically. The driving block reciprocates vertically under the action of the upper spring 323 and the lower spring 324, and stores mechanical energy at the same time. When the driving block moves downward and contacts the piston 326, the upper spring 323 is released and the lower spring 324 is compressed. The driving block transfers energy to the piston 326 to move downward. The piston 326 converts the reciprocating motion into the rotational motion of the crankshaft 328 through the piston connecting rod 327. At the same time, the inertia The inertia wheel stores energy, and after the crankshaft 328 rotates, the mechanical energy is transferred to the generator for power output, completing the conversion of vibration mechanical energy into electrical energy; when the driving block moves upward, the lower spring 324 is released and the upper spring 323 is compressed, and under the inertia of the inertia wheel of the crankshaft 328, the mechanical energy continues to be transferred to the generator for power output, and the height of the upper cover barrel 322 and the casing 325 is adjusted by adjusting the preload force of the upper spring 323 and the lower spring 324 to ensure that even if the driving block and the piston 326 are not synchronized, the piston 326 can complete a complete reciprocating motion stroke.

[0056] like Figure 6 As shown, when the power of the battery pack 5 reaches the threshold, electricity is transmitted to the power grid through the inverter 6. This is achieved through the following steps: the indoor monitoring host 1 detects the threshold of the battery pack 5 and sends an external power supply instruction to the outdoor controller 2. The outdoor controller 2 controls the battery pack 5 (including multiple groups) to discharge; after the battery pack 5 is discharged, the current flows through the outdoor controller 2 to the inverter 6, which converts the DC power into AC power that matches the standard of the roadside equipment 7 for output.

[0057] Reference Figure 7 As shown, the workflow and steps of the present invention are as follows:

[0058] In the first step, when the track vibration of the train near the generator array 3 reaches the trigger value of the vibration trigger 4, the vibration trigger 4 triggers the outdoor controller 2 to start the charging mode of the battery pack 5;

[0059] In the second step, the outdoor controller 2 queries the number, status and power level of the battery pack 5, and determines whether charging is required based on the power level of the battery pack 5:

[0060] (2a) When the outdoor controller 2 determines that the battery pack 5 is in an abnormal state or does not need to be charged, the outdoor controller 2 turns off all charging channels;

[0061] (2b) When the outdoor controller 2 determines that the battery pack 5 is in normal condition and needs to be charged, the outdoor controller 2 selects to open one or more charging channels of the numbered battery packs 5 for charging according to the battery saturation level;

[0062] In the third step, as the train passes through the area of ​​generator array 3, the vertical displacement generated by the track vibration drives the short connecting rod 312 and the long connecting rod 313 to perform a seesaw motion around the axis of the support base 318, with the directions in opposite vertical directions. When the long connecting rod 313 moves downward, the driving block drives the piston 326 to rotate about the crankshaft 328, thereby converting the vertical reciprocating mechanical energy of the track into the rotational mechanical energy of the crankshaft 328.

[0063] In the fourth step, the crankshaft 328 rotates and is then passed through the gearbox 33 to increase the speed of the output shaft. The rotational mechanical energy is then transferred to the generator main shaft through the coupling 335. Finally, the generator converts the rotational mechanical energy into electrical energy and charges the battery pack 5 through the outdoor controller 2.

[0064] Step 5: When the train is away from the generator array 3 and the track vibration is lower than the trigger value of the vibration trigger 4, the outdoor controller 2 turns off the charging mode of the battery pack 5;

[0065] Step 6: The indoor monitoring host 1 sends an external power supply instruction to the outdoor controller 2, and the outdoor controller 2 turns on the discharge mode of the battery pack 5;

[0066] In the seventh step, the outdoor controller 2 queries the number and power level of the battery pack 5, and determines whether it can supply power to the outside according to the power level of the battery pack 5:

[0067] (7a) When the outdoor controller 2 determines that the power supply is too low to be able to supply power, the outdoor controller 2 feeds back the power supply failure information to the indoor monitoring host 1 and waits for further instructions;

[0068] (7b) When the outdoor controller 2 determines that it is possible to supply power to the outside, the outdoor controller 2 selects to open the discharge channels of one or more numbered battery groups 5 according to the queried battery saturation levels;

[0069] In the eighth step, after the battery pack 5 is discharged, the current passes through the outdoor controller 2 and the inverter 6 respectively, and finally the DC power is converted into matching AC power to supply power to the roadside equipment.

[0070] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A mechanical power generation system based on track vibration, characterized by: include: Railway track (10), generator array (3) and train, the generator array (3) is on both sides of the railway track (10), when a train passes by the railway track (10), the railway track (10) vibrates under the action of the train wheel set, causing the generator array (3) on the side to generate electric energy through vibration, and the electric energy generated by the vibration charges the controlled battery pack (5), and when the electric energy of the battery pack (5) reaches a threshold, the electric energy is transmitted to the power grid through the inverter (6); The generator array (3) includes: a left generator array (8) and a right generator array (9), and the left generator array (8) and the right generator array (9) have the same structure; each power generation module in the generator array (3) is connected to the outdoor controller (2) through a cable; the outdoor controller (2) is connected to the battery pack (5) and the inverter (6) through cables, and the outdoor controller (2) is connected to the indoor monitoring host (1) through a network, and the indoor monitoring host (1) issues power supply instructions and monitors the operation of the outdoor controller (2); the rail bottom vibration trigger (4) is connected to the outdoor controller (2) through a network to trigger the battery charging instruction. On the one hand, the electricity generated by the generator array (3) is filtered and supplied to the battery pack (5) according to the charging specifications of the battery pack (5); on the other hand, when the outdoor controller (2) receives the discharge instruction from the indoor monitoring host (1), the outdoor controller (2) controls the battery pack (5) to discharge, and the electricity released by the battery pack (5) is converted into a prescribed standard of electricity through the inverter (6) and output to the roadside equipment (7); the generator array (3) includes energy conversion devices (31) and generators (34) distributed at intervals; the energy conversion device (31) converts vibration energy into generator (34) rotor energy to the input shaft of the generator (34), and the generator (34) generates The electric output battery pack can input electric energy; the energy conversion device (31) includes: a frequency filter device (311), a short connecting rod (312), a long connecting rod (313), an upper transition plate (314), a lower transition plate (315), a support shaft (316), a bearing (317), a support seat (318), a loosening top cover (319), a stud (320), an energy storage block (321), an upper cover barrel (322), an upper spring (323), a lower spring (324), a casing (325), a piston (326), a piston connecting rod (327), a crankshaft (328), an inertia wheel (329), a gearbox (33), and an internal gear (331). , planetary gears (332), central gears (333), output shafts (334), couplings (335); the frequency filter device (311) is connected to the bottom of the track by pressure contact; the frequency filter device (311) is fixedly connected to one end of the short connecting rod (312) by bolts, and the other end is fixedly connected to one side of the upper transition plate (314) and the lower transition plate (315); the upper transition plate (314) and the lower transition plate (315) are fixedly connected by bolts and clamped on the outer ring of the bearing (317); the inner ring of the bearing (317) is fixed to the support seat (318) through the support shaft (316), and the support seat (318) is fixed to the roadbed by bolts;The other side of the upper transition plate (314) and the lower transition plate (315) is connected to one end of the long connecting rod (313) by a bolt. The vertical position of the long connecting rod (313) is tightened and fixed by the anti-loosening top cover (319) and the energy storage block (321). The anti-loosening top cover (319) and the energy storage block (321) are fixed to the upper cover barrel (322) by the stud (320). The upper cover barrel (322) is fixed by the upper spring (323) and the lower spring ( 324) adds the piston (326) in the middle, and the lower spring (324) is limited by the stopper at the lower edge of the upper cover barrel (322); the upper cover barrel (322) is connected to the inner wall of the casing (325) by sliding contact; the piston (326) is connected to the crankshaft (328) through the piston connecting rod (327), one end of the crankshaft (328) is fixedly connected to the inertia wheel (329), and the other end of the crankshaft (328) is connected to the rotor shaft of the generator (34).

2. A mechanical power generation system based on track vibration according to claim 1, characterized in that: The crankshaft (328) is connected to the internal gear (331) via a key, and the internal gear (331) transmits force to the central gear (333) by meshing with the planetary gear (332); one end of the output shaft (334) of the central gear (333) is fixed to the housing wall of the gearbox (33) via a bearing, and the other end is fixedly connected to the rotor shaft of the generator (34) via a coupling (335).

3. The mechanical power generation system based on rail vibration according to claim 1, characterized in that: The electric energy generated by the vibration is used to charge the controlled battery pack (5). When the train approaches the area of ​​the generator array (3), the track vibration reaches the trigger value of the vibration trigger (4), and the trigger triggers the outdoor controller (2) to turn on the charging mode. When the train passes through the area of ​​the generator array (3), the bottom of the railway track (10) between the two sleepers (11) vibrates vertically to produce a large displacement. When the railway track (10) vibrates, the frequency filter device (311) in contact with the bottom of the rail vibrates and produces a vertical displacement. The frequency filter device (311) is equipped with a spring. When the spring vibrates in response, it filters most of the high-frequency vibrations. The displacement reaches the maximum when the low-frequency resonance occurs. The vertical displacement of the frequency filtering device (311) drives the short connecting rod (312), the upper transition plate (314), the lower transition plate (315), and the long connecting rod (313) fixedly connected thereto to perform a seesaw motion around the support shaft (316) at the center of the bearing (317) on the support seat (318), that is, when the short connecting rod (312) moves downward, the long connecting rod (313) moves upward, and conversely, when the short connecting rod (312) moves upward, the long connecting rod (313) moves downward, and according to the short connecting rod (312) and the long connecting rod (31 3) realizes the amplification of the vertical displacement of the long connecting rod (313) to meet the travel requirement of the energy conversion device (31) for driving; the long connecting rod (313) is tightened and fixed on the stud (320) through the anti-loosening top cover (319) and the energy storage block (321). When the long connecting rod (313) moves vertically upward, it drives the upper cover barrel (322) to move upward along the casing (325) and compresses the lower spring (324) to lift the piston (326), so that the kinetic energy is converted into gravitational potential energy. When the long connecting rod (313) moves vertically downward, the upper cover barrel (322) moves upward along the casing (325) and compresses the lower spring (324) to lift the piston (326), so that the kinetic energy is converted into gravitational potential energy. When the piston (326) moves downward, it drives the upper cover barrel (322) to move downward along the casing (325), and compresses the upper spring (323) to drop the piston (326), releasing the gravity and converting it into kinetic energy to be transferred to the piston (326); while the piston (326) moves downward, its vertical displacement drives the crankshaft (328) to rotate through the piston connecting rod (327); inertia wheels (329) are respectively installed on both sides of the piston connecting rod (327), and mechanical energy is stored when the crankshaft (328) rotates; the bearings at both ends of the crankshaft (328) are fixed on the casing (325). One end of the gear is connected to the internal gear (331) via a key. When the crankshaft (328) rotates, the internal gear (331) rotates synchronously, and at the same time drives the planetary gears (332) and the central gear (333) to rotate. The output shaft (334) of the central gear (333) is fixed to the gearbox (33) via a bearing. When the central gear (333) rotates, the output shaft (334) rotates together with the main shaft of the generator (34) via a coupling (335), converting mechanical energy into electrical energy for output. The output power is controlled by the outdoor controller (2) to charge the battery.

4. The mechanical power generation system based on rail vibration according to claim 1, characterized in that: When the electric energy of the battery pack (5) reaches a threshold value, the power is transmitted to the power grid through the inverter (6), which is achieved by the following steps: the indoor monitoring host (1) detects the threshold value of the battery pack (5), sends an external power supply instruction to the outdoor controller (2), and the outdoor controller (2) controls the battery pack (5) to discharge; after the battery pack (5) is discharged, the current flows through the outdoor controller (2) to the inverter (6), converting the direct current into alternating current that matches the standard of the roadside equipment (7) for output; the energy conversion device (31) has three working modes: vibration energy absorption process, vibration energy transmission process and vibration energy conversion process: the vibration energy absorption process includes a frequency filtering device (311) installed at the bottom of the rail and contact-connected with the railway track (10); when the train passes by, the rail vibration is reduced by the frequency filtering device (311), and its vibration response filters most of the high-frequency vibration and retains the low-frequency vibration. When the frequency filtering device resonates, the vibration conversion device absorbs the maximum energy; The vibration energy transmission includes: a frequency filter device (311) is installed on a connecting rod, the middle of the connecting rod is connected to the middle support seat (318) through a support shaft (316), the frequency filter device (311) generates vertical displacement after vibration, which drives the short connecting rod (312) to vertically displace, and at the same time, the long connecting rod (313) generates reverse vertical vibration with the support seat (318) as the center, and the track vibration energy is transmitted to the energy conversion device (31) through the connecting rod; The vibration energy conversion includes: the driving block of the energy conversion device (31) is fixedly connected to the long connecting rod (313); when the long connecting rod (313) vibrates vertically, the driving block is driven to vibrate vertically; the driving block reciprocates vertically under the action of the upper spring (323) and the lower spring (324), and mechanical energy is stored at the same time; when the driving block moves downward and contacts the piston (326), the upper spring (323) is released and the lower spring (324) is compressed, and the driving block transmits energy to the piston (326) to move downward; the piston (326) converts the reciprocating motion into the rotational motion of the crankshaft (328) through the piston connecting rod (327). At the same time, the inertia wheel stores energy, and after the crankshaft (328) rotates, the mechanical energy is transferred to the generator for power output, completing the conversion of vibration mechanical energy and electrical energy; when the driving block moves upward, the lower spring (324) is released and the upper spring (323) is compressed, and under the inertia of the crankshaft inertia wheel, the mechanical energy continues to be transferred to the generator for power output; by adjusting the height of the upper cover barrel (322) and the casing (325) by connecting the threads, the preload of the upper spring (323) and the lower spring (324) is adjusted to ensure that even if the driving block and the piston (326) are not synchronized, the piston (326) can complete a complete reciprocating motion stroke.

5. A method for mechanical power generation based on rail vibration, based on the system of claim 1, characterized in that: The steps include: In the first step, when the track vibration of the train near the generator array (3) reaches the trigger value of the vibration trigger (4), the vibration trigger (4) triggers the outdoor controller (2) to start the battery pack (5) charging mode; In the second step, the outdoor controller (2) queries the number, status and power of the battery pack (5), and determines whether charging is required based on the power of the battery pack (5): (2a) When the outdoor controller (2) determines that the battery pack (5) is in an abnormal state or does not need to be charged, the outdoor controller (2) turns off all charging channels; (2b) When the outdoor controller (2) determines that the battery pack (5) is in a normal state and needs to be charged, the outdoor controller (2) selects to open a charging channel of one or more numbered battery packs (5) for charging according to the battery power saturation level; In the third step, when the train passes through the generator array (3) area, the vertical displacement generated by the track vibration drives the short connecting rod (312) and the long connecting rod (313) to perform a seesaw motion around the axis of the support seat (318), and the directions are opposite in the vertical direction; when the long connecting rod (313) moves downward, the driving block drives the piston (326) to rotate around the crankshaft (328) as the center, thereby converting the vertical reciprocating motion mechanical energy of the track into the rotational mechanical energy of the crankshaft (328); In the fourth step, the crankshaft (328) rotates and then increases the speed of the output shaft through the gearbox (33), and then transmits the rotational mechanical energy to the generator main shaft through the coupling. Finally, the generator converts the rotational mechanical energy into electrical energy and charges the battery pack (5) through the outdoor controller (2); Step 5: When the train is away from the generator array (3) area and the track vibration is lower than the trigger value of the vibration trigger (4), the outdoor controller (2) turns off the charging mode of the battery pack (5); In the sixth step, the indoor monitoring host (1) sends an external power supply instruction to the outdoor controller (2), and the outdoor controller (2) turns on the battery pack (5) discharge mode; In the seventh step, the outdoor controller (2) queries the number and power of the battery pack (5), and determines whether it can supply power to the outside according to the power of the battery pack (5): (7a) When the outdoor controller (2) determines that the power supply is too low to be able to supply power to the outside, the outdoor controller (2) feeds back information of the power failure to the indoor monitoring host (1) and waits for further instructions; (7b) When the outdoor controller (2) determines that it is possible to supply power to the outside, the outdoor controller (2) selects to open the discharge channels of one or more numbered battery groups (5) according to the queried battery saturation levels; In the eighth step, after the battery pack (5) is discharged, the current passes through the outdoor controller (2) and the inverter (6), and finally the DC power is converted into matching AC power to supply power to the roadside equipment.

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