CN113098197B - A mechanical power generation system and method based on track vibration - Google Patents
A mechanical power generation system and method based on track vibrationInfo
- Publication number
- CN113098197B CN113098197B CN202110486645.0A CN202110486645A CN113098197B CN 113098197 B CN113098197 B CN 113098197B CN 202110486645 A CN202110486645 A CN 202110486645A CN 113098197 B CN113098197 B CN 113098197B
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- Prior art keywords
- vibration
- energy
- connecting rod
- outdoor controller
- battery pack
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1861—Rotary generators driven by animals or vehicles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- H02J7/82—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
- H02K7/075—Means for converting reciprocating motion into rotary motion or vice versa using crankshafts or eccentrics
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a mechanical power generation system and a method based on rail vibration, which mainly solve the problems of transmission, conversion, power generation, storage and release of the vibration energy of the railway rail at present; the method comprises the steps of firstly, converting mechanical energy of vertical reciprocating motion into rotary mechanical energy to drive a generator to generate power, finally converting the rotary mechanical energy into electric energy by the generator to charge a battery pack, and controlling the battery to discharge by a charge-discharge controller and outputting power by matching load voltage through an inverter when discharging. The power generation system and the method based on the rail vibration are simple in structure, can obtain the vertical energy of the rail to the greatest extent, can achieve the effects of reserving low frequency and weakening high frequency vibration, improve the conversion efficiency of the vibration, improve the density of energy collection and coverage of the rail, and improve the energy collection efficiency.
Description
Technical Field
The invention belongs to the technical field of electromechanics, relates to an electromechanical integrated product for converting, storing and releasing railway track vibration energy, in particular to a mechanical power generation system and a mechanical power generation method based on track vibration, and can be used for supplying power to track roadside equipment in the fields of railways and urban track traffic.
Background
Along with the continuous, stable and high-speed development of national economy and the continuous improvement of the living standard of people, rail transit is increasingly favored by people as a traffic tool with the advantages of large traffic volume, high speed, dense shifts, safety, comfort, high standard point rate, all weather, low freight cost, energy conservation, environmental protection and the like. And each railway operation company also invests a large amount of manpower and material resources for maintenance to ensure the standard point rate, riding safety and comfort of the rail transit, and brings great economic pressure to the railway operation companies such as railway bureaus, urban rails, subways and the like.
In recent years, with the development of technologies such as the internet and the internet of things, various automatic detection and monitoring devices are widely applied to the field of rail transit, are installed beside a rail and are used for monitoring various signal data, so that the maintenance cost of personnel is greatly reduced, and meanwhile, the cable laying and power supply cost of the monitoring devices is also continuously increased. Because various monitoring devices are often increased according to the needs after the line is opened, the monitoring devices bring huge pressure to the design capacity of the original line. Therefore, the method for generating electricity by adopting the rail vibration and networking, storing and supplying power on site is environment-friendly and efficient, and has important significance for reducing the cable laying and power supply cost of the monitoring equipment.
At present, the domestic new energy power generation technology mainly utilizes renewable energy sources such as solar energy, biomass energy, wind energy, geothermal energy, wave energy, ocean current energy, tidal energy and the like, and realizes the power generation process through the existing technology. However, for the rail transit, such as mountain land, plain, altitude, river, lake and sea geographic environments, and engineering environments such as tunnels, bridges, underground special environments, the complicated space long and narrow environment results in the difficulty in finding a new energy power generation method suitable for various environments, and the only common characteristic is that huge vibration energy is generated by the rails through which vehicles travel. Therefore, the method based on the energy conversion, power generation, storage and power supply of the rail vibration is generated, and the device has the characteristics of simple structure, strong environmental adaptability, safety and environmental protection.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a mechanical power generation system and a mechanical power generation method based on rail vibration, which have simple structure, can obtain the vertical energy of the rail to the maximum extent, can achieve the effects of keeping low frequency and weakening high frequency vibration, improve the conversion efficiency of vibration and the density of energy collection covering the rail, and improve the energy collection efficiency.
The invention aims to achieve the purpose and relates to a mechanical power generation system based on rail vibration, which is characterized by comprising a railway rail, a generator set array and trains, wherein the generator set array is arranged on two sides of the railway rail, when the railway rail is provided with the trains, the railway rail is vibrated under the action of a train wheel set, the generator set arrays on the two sides generate electric energy through vibration, the electric energy generated by vibration charges a controlled battery pack, and when the electric energy of the battery pack reaches a threshold value, the electric energy is transmitted to a power grid through an inverter.
The generator set array comprises 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.
The indoor monitoring host is connected with the outdoor controller through a network to send out a power supply instruction and monitor the work of the outdoor controller, the rail bottom vibration trigger is connected with the outdoor controller through the network to trigger a battery charging instruction, each power generation module in the power generation unit array is connected with the outdoor controller through a cable, the outdoor controller is connected with the battery pack through a cable and an inverter respectively, on one hand, the power generated by the power generation unit array is filtered and supplied with power according to the charging specification of the battery pack, on the other hand, when the outdoor controller is connected with the indoor monitoring host to send out a discharging instruction, the outdoor controller controls the battery pack to discharge, and the power released by the battery pack is converted into power to roadside equipment in a specified mode through the inverter to supply and output.
The generator set array further comprises energy conversion devices and generators which are distributed at intervals, vibration energy is converted into generator rotor energy through the energy conversion devices and is transmitted to an input shaft of the generators, and the generators generate electricity to output electric energy which can be input by the battery pack.
The energy conversion device comprises a frequency filtering device, a short connecting rod, a long connecting rod, an upper transition plate, a lower transition plate, a supporting shaft, a bearing, a supporting seat, an anti-loosening top cover, a stud, an energy storage block, an upper cover barrel, an upper spring, a lower spring, a shell, 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, wherein the frequency filtering device is connected with the bottom of an orbit in a pressure contact mode, one end of the frequency filtering device is fixedly connected with one end of the short connecting rod through a bolt, the other end of the frequency filtering device is fixedly connected with one side of the upper transition plate and one side of the lower transition plate, the upper transition plate is fixedly connected with the lower transition plate through a bolt, and clamped on an outer ring of a bearing, an inner ring of the bearing is fixedly connected with the supporting seat through the supporting shaft, the supporting seat is fixedly connected with one end of the long connecting rod through the bolt, the vertical position of the anti-loosening top cover and the energy storage block, the anti-loosening top cover and the stud are fixedly connected with one end of the upper cover barrel through the stud, the upper cover barrel is fixedly connected with the piston is arranged on the middle barrel through the upper spring and the lower spring, the upper cover barrel is fixedly connected with the upper cover sleeve through the upper cover and the lower cover through the piston, the upper cover is fixedly connected with the inner cover and the inner cover through the inner gear through the piston, the inner gear is fixedly connected with the inner gear through the inner gear and the inner gear through the inner gear.
The electric energy generated by vibration charges the controlled battery pack, when the train approaches to the area of the generator set array, the track vibration reaches the trigger value of the vibration trigger, and the trigger triggers the outdoor controller to open the charging mode; the train passes through the generator set array area, the vertical vibration of the rail bottom between two sleepers produces larger displacement, the vibration of the frequency filtering device contacting with the rail bottom produces vertical displacement, the spring is installed inside the frequency filtering device, the vibration response of the spring filters most high-frequency vibration, the displacement reaches the maximum when the low-frequency vibration is generated, the frequency filtering device vertically displaces to drive the short connecting rod, the upper transition plate, the lower transition plate and the long connecting rod fixedly connected with the short connecting rod, the long connecting rod moves around the supporting shaft of the center of the upper bearing of the supporting seat, namely, when the short connecting rod moves downwards, the long connecting rod moves upwards, otherwise, when the short connecting rod moves upwards, the long connecting rod moves downwards, the long connecting rod realizes the amplification of the vertical displacement of the long connecting rod according to the length ratio of the short connecting rod to meet the driving stroke requirement of the energy conversion device, the long connecting rod is fastened and fixed on the double-headed stud, when the long connecting rod moves upwards, the upper cover barrel is driven to move upwards along the casing, the lower spring is compressed to lift the piston, kinetic energy is converted into gravitational potential energy, when the long connecting rod moves downwards, the upper cover is driven to move downwards, the piston is driven by the upper cover, the piston is driven by the piston to move downwards, and the piston is driven by the piston to rotate, and the piston is respectively, and the piston is rotated to move downwards by the piston rods and the piston is respectively, and the piston is driven to move downwards and the piston is rotated, the output shaft of the central gear is fixed on the gear box through the bearing, and when the central gear rotates, the output shaft rotates together with the main shaft of the generator through the coupler, the mechanical energy is converted into electric energy to be output, and the output electric power is controlled by the outdoor controller to charge the battery.
When the electric energy of the battery pack reaches the threshold value, the inverter is used for transmitting the electric energy to the power grid, the indoor monitoring host detects the threshold value of the battery pack and sends an external power supply command to the outdoor controller, the outdoor controller controls the battery pack (comprising a plurality of groups) to discharge, after the battery pack is discharged, the electric current flows to the inverter through the outdoor controller, and the direct current is converted into the alternating current matched with the system of the roadside equipment for output.
The invention relates to a mechanical power generation method based on rail vibration, which comprises the following steps,
The method comprises the steps that firstly, when the track vibration of a train adjacent to an array area of a generator set reaches a trigger value of a vibration trigger, the vibration trigger triggers an outdoor controller to start a battery pack charging mode;
secondly, the outdoor controller inquires the number, the state and the electric quantity of the battery pack, and judges whether charging is needed or not through the electric quantity of the battery pack:
(2a) When the outdoor controller judges that the state of the battery pack is abnormal or the battery pack does not need to be charged, the outdoor controller closes all charging channels;
(2b) When the outdoor controller judges that the state of the battery pack is normal and needs to be charged, the outdoor controller selectively starts a charging channel of one or more groups of numbered battery packs to be charged according to the electric quantity saturation degree of the battery;
when the long connecting rod is displaced downwards, the driving block drives the piston to rotate by taking the crankshaft as the center, so that the vertical reciprocating mechanical energy of the track is converted into the rotating mechanical energy of the crankshaft;
step four, after the crankshaft rotates, the rotating speed of an output shaft is increased after the speed is changed through a gearbox, then the rotating mechanical energy is transmitted to a main shaft of a generator through a coupler, and finally the generator converts the rotating mechanical energy into electric energy and charges a battery pack through an outdoor controller;
fifthly, when the train is far away from the generator set array area and the track vibration is lower than the trigger value of the vibration trigger, the outdoor controller closes the charging mode of the battery pack;
sixthly, the indoor monitoring host sends an external power supply instruction to the outdoor controller, and the outdoor controller starts a battery pack discharging mode;
Seventh, the outdoor controller inquires the number and the electric quantity of the battery pack, and judges whether external power supply can be performed or not through the electric quantity of the battery pack:
(7a) When the outdoor controller judges that the electric quantity is low and external power cannot be supplied, the outdoor controller feeds back the information that the external power cannot be supplied to the indoor monitoring host, and waits for further instructions;
(7b) When the outdoor controller judges that external power supply can be performed, the outdoor controller selects and starts a discharge channel of one or more groups of numbered battery packs according to the inquired battery power saturation degree;
And eighth step, after the battery pack discharges, the current passes through the outdoor controller and the inverter respectively, and finally, the direct current is converted into the matched alternating current to supply power to the roadside equipment.
The invention has the following advantages:
1) The energy conversion device is simple in structure, and the energy conversion device is not limited by a narrow space of the rail bottom by transmitting vertical vibration of the rail to the side of the rail.
2) The energy absorbing device is directly contacted with the rail bottom area between the two sleepers, so that the device is ensured to obtain the vertical energy of the rail to the maximum extent.
3) The frequency filtering device for absorbing rail bottom energy absorbs energy through vibration response caused by installing the spring with the frequency close to the resonance frequency of the rail, so that the effect of keeping low frequency and weakening high-frequency vibration can be achieved, and the vibration conversion efficiency is improved.
4) The energy collection system has the advantages that the energy collection system can improve the density of energy collection covering the track by adopting the array formed by sequentially arranging the plurality of power generation modules between the sleepers at two sides of the track, thereby being beneficial to reducing the occupied area and improving the energy collection efficiency.
The invention will be further described with reference to the accompanying drawings, which are examples of the invention.
Drawings
FIG. 1 is a schematic diagram of a power generation system for track vibration according to the present invention;
FIG. 2 is a schematic diagram of an array of orbital vibration power generating units according to the invention;
FIG. 3 is a schematic diagram of a power generation module according to the present invention;
FIG. 4A is a schematic diagram illustrating the conversion of structural kinetic energy into gravitational potential energy in the energy conversion device of the present invention;
FIG. 4B is a schematic diagram illustrating the process of converting gravitational potential energy into kinetic energy according to the structure of the energy conversion device of the present invention;
FIG. 5 is a schematic diagram of a charging process of the power generation system of the present invention for track vibration;
FIG. 6 is a schematic diagram of a discharge process of the power generation system of the present invention for rail vibrations;
FIG. 7 is a schematic diagram of a power generation system workflow case with orbital vibration according to the invention.
The device comprises a1 indoor monitoring host, a2 outdoor controller, a3 generating set array, a 31 energy conversion device, a 311 frequency filtering device, a 312 short connecting rod, a 313 long connecting rod, a 314 upper transition plate, a 315 lower transition plate, a 316 supporting shaft, a 317 bearing, a 318 supporting seat, a 319 anti-loose top cover, a 320 stud, a 321, an energy storage block, a 322 upper cover barrel, a 323 upper spring, a 324 lower spring, a 325, a shell, a 326, a piston, a 327, a piston connecting rod, a 328, a crankshaft, 329, an inertia wheel, a 33, a gearbox, a 331, an internal gear, a 332, a planetary gear, 333, a central gear, a 334, an output shaft, a 335, a coupling, a 34, a generator, a 4, a vibration trigger, a 5, a battery pack, a 6, an inverter, a7, a roadside device, an 8, a left generating set array, a 9, a right generating set array, a 10, a railway track, a 11 and a sleeper.
Detailed Description
The following detailed description, structural features and methods of the present invention will be described in detail with reference to the accompanying drawings and examples in order to further illustrate the technical means and methods of the present invention to achieve the intended purpose.
The invention relates to a mechanical power generation system and a mechanical power generation method based on rail vibration, which are shown in fig. 1 and 2, and are characterized by comprising a railway rail 10, a generator set array 3 and a train, wherein the generator set array 3 is arranged at the side edge of the railway rail 10, when the railway rail 10 is provided with the train passing by, the train vibrates on the railway rail 10, the generator set array 3 at the side edge generates electric energy through vibration, the electric energy generated by vibration charges a controlled battery pack 5, and when the electric energy of the battery pack 5 reaches a threshold value, the electric energy is transmitted to a power grid through an inverter 6.
The generator set array 3 comprises a left generator set array 8 and a right generator set array 9, and the left generator set array 8 and the right generator set array 9 have the same structure.
As shown in FIG. 1, an indoor monitoring host 1 is connected with an outdoor controller 2 through a network to issue a power supply instruction and monitor the work of the outdoor controller 2, a rail bottom vibration trigger 4 is connected with the outdoor controller 2 through the network to trigger a battery charging instruction, each power generation module in a generator set array 3 is connected with the outdoor controller 2 through a cable, the outdoor controller 2 is connected with a battery pack 5 and an inverter 6 through the cable respectively, on one hand, the power generated by the generator set array is filtered and supplied according to the charging specification of the battery pack 5, on the other hand, when the outdoor controller 2 is connected with a discharging instruction of the indoor monitoring host 1, the outdoor controller 2 controls the battery pack 5 to discharge, and the power released by the battery pack 5 is converted into power of a specified system through the inverter 6 to be supplied to a roadside device 7 for outputting.
The generator set array 3 comprises energy conversion devices 31 and generators 34 which are distributed at intervals, the vibration energy is converted into rotor energy of the generators 34 through the energy conversion devices 31 and is input to an input shaft of the generators 34, and the generators 34 generate electricity to output network-accessible electric energy.
As shown in fig. 3, 4A and 4B, the energy conversion device 31 includes an energy absorbing unit, an energy transmitting unit and an energy conversion unit, the energy absorbing unit is mechanically connected to an input end of the energy conversion unit through the energy transmitting unit, and an output end of the energy conversion unit is connected to a rotor shaft of the generator 34 through a speed change unit.
The energy absorption unit comprises a frequency filtering device 311 and a short connecting rod 312, wherein the frequency filtering device 311 is connected with the bottom of a track in a pressure contact mode, and the frequency filtering device 311 is fixedly connected with one end of the short connecting rod 312 through a bolt.
The energy transfer unit comprises a short connecting rod 312, a long connecting rod 313, an upper transition plate 314, a lower transition plate 315, a supporting shaft 316, a bearing 317 and a supporting seat 318, wherein the other end of the short connecting rod 312 is fixedly connected with one sides 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 through bolts to form an upper-lower round connection structure and are clamped on the outer ring of the bearing 317, the inner ring of the bearing 317 is fixed on the supporting seat 318 through the supporting shaft 316, the supporting seat 318 is fixed on a road bed through bolts, and the other sides of the upper transition plate 314 and the lower transition plate 315 are connected with one ends of the long connecting rod 313 through bolts.
The energy conversion unit comprises a locking top cover 319, a double-end stud 320, an energy storage block 321, an upper cover barrel 322, an upper spring 323, a lower spring 324, a machine shell 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, wherein the vertical position of the long connecting rod 313 is tightly fixed through the locking top cover 319 and the energy storage block 321, the locking top cover 319 and the energy storage block 321 are fixed on the upper cover barrel 322 through the double-end stud 320, the upper cover barrel 322 is used for clamping the piston 326 in the middle through the upper spring 323 and the lower spring 324, the lower spring 324 is limited by a lower edge stop piece through the upper cover barrel 322, the upper cover barrel 322 is connected with the inner wall of the machine shell 325 in a sliding contact mode, the piston 326 is connected with the crankshaft 328 through the piston connecting rod 327, one end of the crankshaft 328 is fixedly connected with the inertia wheel 329, and the other end of the crankshaft 328 is connected with a rotor shaft of the generator 34.
As shown in fig. 3, the other end of the crankshaft 328 is keyed to the rotor shaft of the generator 34 to the internal gear 331, and the internal gear 331 transfers force to the sun gear 333 by meshing with the planetary gears 332.
One end of an output shaft 334 of the sun gear 333 is fixed on the shell wall of the gearbox 33 through a bearing, and the other end is fixedly connected on the rotor shaft of the generator 34 through a coupler 335.
As shown in fig. 3, 4A, 4B and 5, the electric energy generated by vibration charges the controlled battery pack 5, when the train approaches the area of the generator set array 3, the track vibration reaches the trigger value of the vibration trigger 4, and the trigger triggers the outdoor controller 2 to open the charging mode; the train passes through the area of the generator set array 3, the vertical vibration of the bottom of the railway track 10 between the two sleepers 11 generates larger displacement, when the railway track 10 vibrates, the frequency filtering device 311 which is in contact with the rail bottom vibrates and generates vertical displacement, the spring is arranged in the frequency filtering device 311, the spring vibration response can filter most of high-frequency vibration, and the displacement reaches the maximum when the low-frequency resonance is performed; the frequency filtering device 311 vertically moves to drive the short connecting rod 312, the upper transition plate 314, the lower transition plate 315 and the long connecting rod 313 which are fixedly connected with the frequency filtering device to move in a seesaw manner around the supporting shaft 316 at the center of the bearing 317 on the supporting seat 318, namely, when the short connecting rod 312 moves downwards, the long connecting rod 313 moves upwards, otherwise, when the short connecting rod 312 moves upwards, the long connecting rod 313 moves downwards, and the amplification of the vertical displacement of the long connecting rod 313 is realized according to the length ratio of the short connecting rod 312 to the long connecting rod 313 so as to meet the stroke requirement of the energy conversion device 31 on driving, the long connecting rod 313 is clamped and fixed on the double-ended stud 320 through the anti-loosening top cap 319 and the energy storage block 321, when the long connecting rod 313 moves vertically upwards, the upper cover barrel 322 is driven to move upwards along the casing 325, the lower spring 324 is compressed to lift the piston 326, so that kinetic energy is converted into gravitational potential energy, when the long connecting rod 313 moves vertically downwards, the upper cover barrel 322 is driven downwards along the casing 325, the upper spring 323 is compressed to drop down, the kinetic energy is released to be transferred to the piston 326, the vertical displacement drives the crankshaft 328 to rotate through the piston connecting rod 327, inertia wheels 329 are respectively arranged on two sides of the piston connecting rod 327, mechanical energy is stored when the crankshaft 328 rotates, bearings at two ends of the crankshaft 328 are supported and fixed on the shell 325, one end of the crankshaft 328 is connected with the internal gear 331 through keys, the internal gear 331 synchronously rotates when the crankshaft 328 rotates and drives the planetary gear 332 and the central gear 333 to rotate, an output shaft 334 of the central gear 333 is fixed on the gearbox 33 through bearings, and when the central gear 333 rotates, the output shaft 334 rotates together with a main shaft of the generator 34 through a coupler 335 to convert the mechanical energy into electric energy to be output, and the output electric energy is used for controlling battery charging through the outdoor controller 2.
As shown in fig. 4A and 4B, the energy conversion device 31 of the present invention has three modes of operation, namely, a vibration energy absorbing process, a vibration energy transmitting process and a vibration energy converting process, wherein the vibration energy absorbing process comprises a frequency filtering device 311 which is installed at the rail bottom and is connected with the rail in a contact manner, the rail vibration is damped by the frequency filtering device when the train passes, the vibration response thereof filters most of the high-frequency vibration, the low-frequency vibration is reserved, and the energy absorbed by the vibration conversion device is maximum when the frequency filtering device 311 resonates.
The vibration energy transmission includes that the frequency filtering device 311 is installed on the connecting rod, the middle of the connecting rod is connected with the middle supporting seat 318 through the supporting shaft 316, the frequency filtering device 311 generates vertical displacement after vibrating, it drives the short connecting rod 312 to vertically displace, meanwhile, the long connecting rod 313 generates reverse vertical vibration by taking the supporting seat 318 as the center, and the rail vibration energy is transmitted to the energy conversion device 31 through the connecting rod.
The vibration energy conversion comprises that a driving block of the energy conversion device 31 is fixedly connected with a long connecting rod 313, when the long connecting rod 313 vertically vibrates, the driving block is driven to vertically vibrate, the driving block vertically reciprocates under the action of an upper spring 323 and a lower spring 324 and stores mechanical energy, when the driving block moves downwards to contact a piston 326, the upper spring 323 is released, the lower spring 324 is compressed, the driving block transmits energy to the downward movement of the piston 326, the piston 326 converts the reciprocating movement into the rotary movement of a crankshaft 328 through a piston connecting rod 327, meanwhile, an inertia wheel stores energy, the crankshaft 328 rotates and then transmits the mechanical energy to a generator to perform electric power output to complete conversion of vibration mechanical energy and electric energy, when the driving block moves upwards, the lower spring 324 is released, the upper spring 323 is compressed, the mechanical energy continues to be transmitted to the generator to perform electric power output under the inertia action of the inertia wheel of the crankshaft 328, the pre-tightening force of the upper spring 323 and the lower spring 324 is adjusted through connecting threads, and the height of the upper cover barrel 322 and the housing 325 is adjusted, and the piston 326 is guaranteed, and the piston 326 can complete reciprocating movement even if the driving block and the piston 326 are not synchronous.
As shown in fig. 6, when the electric energy of the battery pack 5 reaches a threshold value, the electric energy is transmitted to the power grid through the inverter 6, by detecting the threshold value of the battery pack 5 by the indoor monitoring host 1 and sending an external power supply command to the outdoor controller 2, the outdoor controller 2 controls the battery pack 5 (including a plurality of groups) to discharge, after the battery pack 5 discharges, the current flows to the inverter 6 through the outdoor controller 2, and the direct current is converted into the alternating current matched with the system of the roadside equipment 7 for output.
Referring to fig. 7, the workflow and steps of the present invention are as follows,
Firstly, when the track vibration of the area of the train, which is close to the generator set 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 set 5;
secondly, the outdoor controller 2 inquires the number, state and electric quantity of the battery pack 5, and judges whether charging is required or not according to the electric quantity of the battery pack 5:
(2a) When the outdoor controller 2 judges that the state of the battery pack 5 is abnormal or that charging is not needed, the outdoor controller 2 closes all charging channels;
(2b) When the outdoor controller 2 judges that the state of the battery pack 5 is normal and the battery pack needs to be charged, the outdoor controller 2 selectively opens a charging channel of one or more groups of numbered battery packs 5 to be charged according to the electric quantity saturation degree of the battery;
The third step, the train passes through the area of the generator set array 3, the vertical displacement generated by the rail vibration drives the short connecting rod 312 and the long connecting rod 313 to do wane motion around the shaft of the supporting seat 318, and the directions are vertical opposite;
Fourth, the crankshaft 328 rotates and then changes speed through the gearbox 33, then the rotation speed of the output shaft is increased, then the rotation mechanical energy is transmitted to the main shaft of the generator through the coupler 335, and finally the generator converts the rotation mechanical energy into electric energy and charges the battery pack 5 through the outdoor controller 2;
Fifthly, when the train is far away from the area of the generator set array 3 and the track vibration is lower than the trigger value of the vibration trigger 4, the outdoor controller 2 closes the charging mode of the battery pack 5;
sixthly, the indoor monitoring host 1 sends an external power supply instruction to the outdoor controller 2, and the outdoor controller 2 starts a discharging mode of the battery pack 5;
Seventh, the outdoor controller 2 queries the number and the electric quantity of the battery pack 5, and determines whether external power supply is possible according to the electric quantity of the battery pack 5:
(7a) When the outdoor controller 2 judges that the electric quantity is low and external power cannot be supplied, the outdoor controller 2 feeds back the information that the power cannot be supplied to the indoor monitoring host 1 and waits for further instructions;
(7b) When the outdoor controller 2 judges that external power supply can be performed, the outdoor controller 2 selects and starts a discharge channel of one or more groups of numbered battery packs 5 according to the inquired battery power saturation degree;
and eighth step, after the battery pack 5 discharges, the current passes through the outdoor controller 2 and the inverter 6 respectively, and finally, the direct current is converted into matched alternating current to supply power to the roadside equipment.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (5)
1. A mechanical power generation system based on rail vibration is characterized by comprising a railway rail (10), The system comprises a generator set array (3) and a train, wherein the generator set array (3) is arranged on two sides of a railway track (10), when the railway track (10) is provided with the train, the railway track (10) generates vibration under the action of a train wheel set, the generator set array (3) on the side generates electric energy through vibration, the electric energy generated by the vibration charges a controlled battery pack (5), when the electric energy of the battery pack (5) reaches a threshold value, the electric energy is transmitted to a power grid through an inverter (6), the generator set array (3) comprises a left generator set array (8) and a right generator set array (9), the left generator set array (8) and the right generator set array (9) have the same structure, each generator module in the generator set array (3) is connected with an outdoor controller (2) through cables, the outdoor controller (2) is connected with the battery pack (5) through cables and the inverter (6) respectively, the outdoor controller (2) is connected with an indoor monitoring host (1) through a network, the indoor monitoring host (1) sends a power supply instruction and monitors the work of the outdoor controller (2), the rail bottom vibration trigger (4) is connected with the outdoor controller (2) through a network to trigger a battery charging instruction, on one hand, electricity generated by the generator set array (3) is filtered and supplied according to the charging specification of the battery set (5), on the other hand, when the outdoor controller (2) receives a discharging instruction of the indoor monitoring host (1), the outdoor controller (2) controls the battery set (5) to discharge, electricity released by the battery set (5) is converted into electricity of a specified system through the inverter (6) to supply power to and output to the roadside equipment (7), and the generator set array (3) comprises energy conversion devices (31) distributed at intervals, The energy conversion device (31) comprises a frequency filtering 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 locking top cover (319), a double-end stud (320), an energy storage block (321), an upper cover barrel (322), a lower 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), A coupling (335); the frequency filtering device (311) is connected with the bottom of a track in a pressure contact mode, one end of the frequency filtering device (311) is fixedly connected with one end of a short connecting rod (312) through bolts, the other end of the frequency filtering device is fixedly connected with one sides of an upper transition plate (314) and a lower transition plate (315), the upper transition plate (314) is fixedly connected with the lower transition plate (315) through bolts and is clamped on the outer ring of a bearing (317), the inner ring of the bearing (317) is fixed on a supporting seat (318) through a supporting shaft (316), the supporting seat (318) is fixed on a track bed through bolts, the other sides of the upper transition plate (314) and the lower transition plate (315) are connected with one end of a long connecting rod (313) through bolts, the vertical position of the long connecting rod (313) is tightly fixed through a locking top cover (319) and an energy storage block (321), the locking top cover (319) and the energy storage block (321) are fixed on an upper cover barrel (322) through a double-headed stud (320), the upper cover barrel (322) is clamped on the outer ring of the bearing (317), the inner ring of the bearing (317) is fixed on the middle, the lower spring (324) is fixed on the supporting seat (322) through a supporting shaft (318), the upper cover (322) through the upper cover (323) and the lower spring (322) is connected with a piston (328) through a sliding piece along a crankshaft (327) through a connecting rod (328), one end of a crankshaft (328) is fixedly connected with an inertia wheel (329), and the other end of the crankshaft (328) is connected with a rotor shaft of the generator (34).
2. The orbital vibration-based mechanical power generation system of claim 1 wherein said crankshaft (328) is keyed to the internal gear (331), the internal gear (331) transmits force to the sun gear (333) by meshing with the planetary gears (332), and the output shaft (334) of the sun gear (333) is fixed at one end to the housing wall of the gearbox (33) by a bearing and at the other end to the rotor shaft of the generator (34) by a coupling (335).
3. A mechanical power generation system based on rail vibration according to claim 1 is characterized in that the electric energy generated by vibration charges a controlled battery pack (5), when a train approaches to a region of a generator set array (3), the rail vibration reaches a trigger value of a vibration trigger (4), the trigger triggers an outdoor controller (2) to open a charging mode, the train passes through the region of the generator set array (3), vertical vibration at the bottom of a railway rail (10) between two sleepers (11) generates larger displacement, the frequency filtering device (311) which is in contact with the rail bottom is caused to vibrate and generate vertical displacement when the railway rail (10) vibrates, a spring is arranged in the frequency filtering device (311), the spring vibration responds to most high-frequency vibration, the displacement reaches the maximum when the spring vibration is in low-frequency resonance, the frequency filtering device (311) vertically displaces a short connecting rod (312), an upper transition plate (314) and a lower transition plate (313) which are fixedly connected with the spring, a support shaft (316) of a center of a long connecting rod (317) moves around a support base (317), namely, when the short connecting rod (312) moves downwards, the short connecting rod (313) moves upwards and vice versa, the short connecting rod (313) moves upwards according to the length of the short connecting rod (313) is larger than the short connecting rod (313), the long connecting rod (313) is clamped and fixed on the stud (320) through a locking top cover (319) and an energy storage block (321), when the long connecting rod (313) is vertically upwards displaced, the long connecting rod drives an upper cover barrel (322) to upwards move along a shell (325) and compresses a lower spring (324) to lift a piston (326) so as to convert kinetic energy into gravitational potential energy, when the long connecting rod (313) is vertically downwards displaced, the long connecting rod drives the upper cover barrel (322) to downwards move along the shell (325) and compresses an upper spring (323) to drop a piston (326), released gravity is converted into kinetic energy to be transmitted to the piston (326), when the piston (326) downwards moves, the vertical displacement of the piston (326) drives a crankshaft (328) to rotate through a movable piston connecting rod (327), inertia wheels (329) are respectively arranged at two sides of the piston connecting rod (327), two ends of the crankshaft (328) are supported and fixed on the shell (325) through bearings, one end of the crankshaft (328) is connected with an inner gear (331) in a key manner, when the long connecting rod (313) vertically downwards displaces, the crankshaft (328) rotates, and the center gear (333) is synchronously driven by a center gear (333) to rotate through a center gear (333) and a center gear (333) to rotate, and the center gear (333) is synchronously fixed on the center gear (333), the output shaft (334) rotates together with the main shaft of the generator (34) through the coupler (335), converts mechanical energy into electric energy and outputs the electric energy, and the output electric power controls the battery to charge through the outdoor controller (2).
4. The mechanical power generation system based on track vibration according to claim 1, wherein when the electric energy of the battery pack (5) reaches a threshold value, the electric energy is transmitted to a power grid through the inverter (6), the mechanical power generation system is realized by the steps that the indoor monitoring host (1) detects the threshold value of the battery pack (5) and sends an external power supply command to the outdoor controller (2), the outdoor controller (2) controls the battery pack (5) to discharge, after the battery pack (5) discharges, current flows to the inverter (6) through the outdoor controller (2), the direct current is converted into alternating current matched with a system of a roadside device (7) to be output, and the working mode of the energy conversion device (31) comprises a vibration energy absorption process, a vibration energy transmission process and a vibration energy conversion process, wherein the vibration energy absorption process comprises a frequency filtering device (311) which is arranged at the rail bottom and is connected with a railway track (10) in a contact mode, and when a train passes through, track vibration passes through the frequency filtering device (311), most high-frequency vibration is filtered, low-frequency vibration is reserved, and when the frequency filtering device absorbs the vibration, and the vibration is in a frequency band, and the vibration is converted into the maximum energy resonance vibration of the frequency conversion device;
the vibration energy transmission comprises that a frequency filtering device (311) is arranged on a connecting rod, the middle of the connecting rod is connected with a middle supporting seat (318) through a supporting shaft (316), the frequency filtering device (311) generates vertical displacement after vibrating, the frequency filtering device drives a short connecting rod (312) to vertically displace, meanwhile, a long connecting rod (313) generates reverse vertical vibration by taking the supporting seat (318) as the center, and rail vibration energy is transmitted to an energy conversion device (31) through the connecting rod;
The vibration energy conversion device comprises a driving block of an energy conversion device (31) fixedly connected with a long connecting rod (313), the driving block is driven to vertically vibrate when the long connecting rod (313) vertically vibrates, the driving block vertically reciprocates under the action of an upper spring (323) and a lower spring (324) and stores mechanical energy, when the driving block moves downwards to contact a piston (326), the upper spring (323) is released, the lower spring (324) is compressed, the driving block transmits energy to the piston (326) to move downwards, the piston (326) converts the reciprocating motion into the rotary motion of a crankshaft (328) through a piston connecting rod (327), meanwhile, an inertia wheel stores energy, the crankshaft (328) transmits the mechanical energy to a generator to perform electric power output to complete conversion of vibration mechanical energy and electric energy after rotating, when the driving block moves upwards, the lower spring (324) is released, the upper spring (323) is compressed, the mechanical energy is continuously transmitted to the generator to perform electric power output under the inertia action of the inertia wheel of the crankshaft, the upper cover barrel (322) and the shell (325) are adjusted through connecting threads, and the height of the upper spring (323) and the lower spring (326) ensures that the pre-tightening block (326) and the piston (326) do not complete synchronous stroke with the reciprocating motion.
5. A mechanical power generation method based on rail vibration and based on the system of claim 1, comprising the following steps:
Firstly, when the track vibration of the area of the train adjacent to the generator set 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);
Secondly, the outdoor controller (2) inquires the number, the state and the electric quantity of the battery pack (5), and judges whether charging is needed or not through the electric quantity of the battery pack (5):
(2a) When the outdoor controller (2) judges that the state of the battery pack (5) is abnormal or the battery pack does not need to be charged, the outdoor controller (2) closes all charging channels;
(2b) When the outdoor controller (2) judges that the state of the battery pack (5) is normal and the battery pack needs to be charged, the outdoor controller (2) selectively opens a charging channel of one or more groups of numbered battery packs (5) to be charged according to the battery electric quantity saturation degree;
when the long connecting rod (313) is displaced downwards, the driving block drives the piston (326) to rotate around the crankshaft (328), so that the vertical reciprocating mechanical energy of the track is converted into the rotary mechanical energy of the crankshaft (328);
Step four, the rotation speed of an output shaft is increased after the crankshaft (328) rotates and is changed by a gearbox (33), then the rotation mechanical energy is transmitted to a main shaft of a generator by a coupler, and finally the generator converts the rotation mechanical energy into electric energy and charges a battery pack (5) by an outdoor controller (2);
Fifthly, when the train is far away from the area of the generator set array (3), and the track vibration is lower than the trigger value of the vibration trigger (4), the outdoor controller (2) closes the charging mode of the battery pack (5);
sixthly, the indoor monitoring host (1) sends an instruction for externally supplying power to the outdoor controller (2), and the outdoor controller (2) starts a discharging mode of the battery pack (5);
Seventh, the outdoor controller (2) inquires the number and the electric quantity of the battery pack (5), and judges whether the battery pack (5) can supply power to the outside or not through the electric quantity of the battery pack:
(7a) When the outdoor controller (2) judges that the electric quantity is low and external power cannot be supplied, the outdoor controller (2) feeds back the information that the power cannot be supplied to the indoor monitoring host (1) and waits for further instructions;
(7b) When the outdoor controller (2) judges that external power supply can be performed, the outdoor controller (2) selects to start a discharge channel of one or more groups of numbered battery packs (5) according to the inquired battery power saturation degree;
eighth step, after the battery pack (5) discharges, the current passes through the outdoor controller (2) and the inverter (6) respectively, and finally, the direct current is converted into the matched alternating current to supply power to the roadside equipment.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202513593U (en) * | 2012-04-11 | 2012-10-31 | 湖南工程学院 | Solar energy and vibration generator grid-connected generating system for station |
| CN104863810A (en) * | 2015-05-25 | 2015-08-26 | 西南交通大学 | Wheel rail vibration electricity generating and energy storing system |
| CN106320099A (en) * | 2016-10-13 | 2017-01-11 | 长安大学 | Energy-storing and shock-absorbing type power generation device for subway train rails |
| CN216146209U (en) * | 2021-05-01 | 2022-03-29 | 西安铁路信号有限责任公司 | Mechanical power generation system based on rail vibration |
-
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202513593U (en) * | 2012-04-11 | 2012-10-31 | 湖南工程学院 | Solar energy and vibration generator grid-connected generating system for station |
| CN104863810A (en) * | 2015-05-25 | 2015-08-26 | 西南交通大学 | Wheel rail vibration electricity generating and energy storing system |
| CN106320099A (en) * | 2016-10-13 | 2017-01-11 | 长安大学 | Energy-storing and shock-absorbing type power generation device for subway train rails |
| CN216146209U (en) * | 2021-05-01 | 2022-03-29 | 西安铁路信号有限责任公司 | Mechanical power generation system based on rail vibration |
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