CN110733351B - Train braking energy recovery system - Google Patents
Train braking energy recovery system Download PDFInfo
- Publication number
- CN110733351B CN110733351B CN201910918228.1A CN201910918228A CN110733351B CN 110733351 B CN110733351 B CN 110733351B CN 201910918228 A CN201910918228 A CN 201910918228A CN 110733351 B CN110733351 B CN 110733351B
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- hook
- traction frame
- train
- winding drum
- motor
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- 238000011084 recovery Methods 0.000 title claims abstract description 15
- 238000004804 winding Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 238000010248 power generation Methods 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A train braking energy recovery system, a hook system is installed on a girder of a carriage in a train; the hook system comprises a hook connected with the carriage girder and a hydraulic cylinder, wherein the free end of the hook stretches out downwards or withdraws upwards in the stretching out or withdrawing process of the hydraulic cylinder; the guide mechanism is arranged on the inner sides of the two running rails and comprises two guide frames, a plurality of carrier rollers and at least one guide pulley, wherein the two guide frames are arranged close to the two running rails, and the carrier rollers and the guide pulleys are arranged below the running rails; the traction frame system comprises a traction frame, and rollers at two ends of the traction frame are respectively matched with the two guide frames in a rolling way; the winding drum is rotatably arranged below the running track through a rotating shaft in the center of the winding drum, and the rotating shaft is connected with the generator through a clutch and a gearbox; the free end of the steel wire rope wound on the winding drum is connected with the traction frame after bypassing the guide pulley and the plurality of carrier rollers. The system can solve the problem that train braking energy is converted into heat energy waste in the prior art.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a train braking energy recovery system.
Background
With the continuous development of cities, traffic modes are also advancing, and rail trains, such as light rails, subways and the like, become the main traffic modes of many cities at present. The rail train also brings about a sharp increase in energy consumption while improving the urban traffic operation capability. Joint energy technologies such as train energy-saving operation control and regenerative braking are greatly concerned. The train can generate a large amount of kinetic energy to be converted into heat energy in the braking process, so that the energy is wasted and the braking system is seriously worn. In the prior art, a battery is arranged in a train to recover braking electric energy and supply power for the train. However, the braking electric energy generated during the braking of the train is very large, if the train is stored by the vehicle-mounted battery, a large number of batteries are required to be installed on the train, so that the total weight of the train is seriously increased, the energy consumption of the running of the train is affected, and the cost is greatly increased.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a train braking energy recovery system which can solve the problem that train braking energy is converted into heat energy waste in the prior art, can effectively recover the energy in the train arrival braking stage, effectively reduce the abrasion degree of a vehicle braking system, prolong the service life of the braking system, simultaneously, can not increase the extra burden of vehicles, can ensure passenger capacity, can effectively recover a plurality of vehicle energies, and can obviously reduce the manufacturing cost of the recovery system.
In order to achieve the above object, the present invention provides a train braking energy recovery system, comprising a power generation/motor, a conversion circuit, a battery pack, a hook system, a guide frame, a guide mechanism, a traction frame system, a reel, a wire rope, a controller a and a controller B; the generator/motor is connected with the storage battery pack through a conversion circuit,
the hook system is arranged on a girder of a carriage in the train and is positioned at the lower part of the carriage; the hook system comprises a hook and a hydraulic cylinder, wherein the connecting end of the hook and the base of the hydraulic cylinder are respectively hinged with the front and back positions of the middle section of the carriage girder, the piston rod end of the hydraulic cylinder is hinged with the middle part of the hook, and the free end of the hook extends downwards or retracts upwards in the extending or retracting process of the hydraulic cylinder;
the guide mechanism is arranged on the inner sides of two running rails of the train and comprises two guide frames, a plurality of carrier rollers and at least one guide pulley, wherein the two guide frames are installed close to the two running rails, and the carrier rollers are installed on the inner sides of the two running rails at intervals along the extending direction of the running rails and are positioned below the running rails; the guide pulley is arranged below the running track and is positioned at one side of the end parts of the plurality of carrier rollers;
the traction frame system comprises a traction frame and rollers rotatably arranged at two ends of the traction frame, and the rollers at two ends of the traction frame are respectively matched with the two guide frames in a rolling way;
the winding drum is rotatably arranged below the running track through a rotating shaft in the center of the winding drum, the end part of the rotating shaft in the center of the winding drum is connected with one transmission shaft of the gearbox through a clutch, and the other transmission shaft of the gearbox is connected with the power generation/motor;
one end of the steel wire rope is connected with the winding drum and wound outside the winding drum, and the other end of the steel wire rope sequentially winds around the plurality of carrier rollers after bypassing the guide pulley and is finally connected with the traction frame;
the controller A is arranged on the train and is connected with an electromagnetic reversing valve of the control hydraulic cylinder;
the controller B is arranged in the station and is respectively connected with the clutch and the gearbox.
Further, preferably, the train has one or more cars, and when there are multiple cars, the hook system is disposed at a lower portion of the last car.
Further, in order to more conveniently connect the hook with the traction frame, the traction frame is V-shaped.
The invention sets the hook system at the lower part of the carriage, and sets the traction frame system, the guiding mechanism, the winding drum and the steel wire rope which are matched with the hook system at the inner side of the running track, thus being convenient for controlling the hook system to contact with the traction frame system to recover the braking energy when the train enters the station; the traction frame drives the winding drum to rotate in the dragging process, and then drives the power generation/motor to work through the clutch and the gearbox, so that recovered energy is converted into electric energy, and the converted electric energy is stored in the storage battery pack through the conversion circuit. Therefore, the scheme can effectively recover the energy generated during the stop-in braking of the train and convert the energy into electric energy for storage. The system can also provide energy for equipment such as illumination, elevators, ventilation systems and the like in the station with the recovered electric energy on the premise of effectively reducing the abrasion degree of a train braking system and prolonging the service life of the braking system, thereby effectively reducing the daily running cost of the station.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the hook system of the present invention;
fig. 3 is a schematic view of the traction frame system of the present invention.
In the figure: 1. rail, 2, carriage, 3, hooking system, 301, hooking, 302, hydraulic cylinder, 4, traction frame system, 401, traction frame, 402, roller, 5, guide pulley, 6, wire rope, 7, reel, 701, rotating shaft, 8, gearbox, 9, power generation/motor, 10, conversion circuit, 11, accumulator, 12, clutch, 13, guide frame, 14, idler.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present invention provides a train braking energy recovery system, comprising a power generation/motor 9, a conversion circuit 10, a battery pack 11, a hook system 3, a guide frame 13, a guide mechanism, a traction frame system 4, a winding drum 7, a wire rope 6, a controller a and a controller B, wherein, as a preference, the controller a and the controller B can each adopt siemens S7-1200; the generator/motor 9 is connected with a storage battery 11 through a conversion circuit 10;
the hook system 3 is arranged on a girder of the carriage 2 in the train and is positioned at the lower part of the carriage 2; the hook system 3 comprises a hook 301 and a hydraulic cylinder 302, wherein the connecting end of the hook 301 and the base of the hydraulic cylinder 302 are respectively hinged with the front part and the back part of the middle section of the girder of the carriage 2, the piston rod end of the hydraulic cylinder 302 is hinged with the middle part of the hook 301, and the free end of the hook 301 is extended downwards or retracted upwards in the extending or retracting process of the hydraulic cylinder 302;
the guide mechanism is arranged on the inner sides of two running rails 1 of the train and comprises two guide frames 13, a plurality of carrier rollers 14 and at least one guide pulley 5, wherein the two guide frames 13 are arranged close to the two running rails 1, and the plurality of carrier rollers 14 are arranged on the inner sides of the two running rails 1 at intervals along the extending direction of the running rails 1 and are positioned below the running rails 1; the guide pulley 5 is arranged below the running track 1 and is positioned at one side of the ends of the plurality of carrier rollers 14;
the traction frame system 4 comprises a traction frame 401 and rollers 402 rotatably arranged at two ends of the traction frame 401, and the rollers 402 at two ends of the traction frame 401 are respectively in rolling fit with the two guide frames 13;
as shown in fig. 1, the spool 7 is rotatably mounted under the running rail 1 by a rotation shaft 701 at the center thereof, and an end of the rotation shaft 701 at the center of the spool 7 is connected to one transmission shaft of the transmission case 8 by a clutch 12, and the other transmission shaft of the transmission case 8 is connected to the power generation/motor 9. In which the rotation shaft 701 is vertically rotatably provided in the drum 7, in fig. 1, the angle of the rotation shaft 701 is changed in order to make it possible to schematically clarify the connection relationship of the present system through a plan view.
One end of the steel wire rope 6 is connected with the winding drum 7 and is wound outside the winding drum 7, the other end of the steel wire rope 6 sequentially winds around the plurality of carrier rollers 14 after winding around the guide pulley 5, and finally is connected with the traction frame 401;
the controller A is arranged on the train and is connected with an electromagnetic reversing valve of the control hydraulic cylinder 302;
the controller B is arranged in the station and is respectively connected with the clutch 12 and the gearbox 8.
The train has one or more cars 2, and when there are multiple cars 2, a hook system 3 is provided at the lower portion of the last car 2.
In order to more conveniently connect the hook with the traction frame, the traction frame 401 is V-shaped.
The energy recovery process comprises the following steps:
when the train enters the station, braking is required, and the controller B controls the clutch 12 to be engaged. The controller A controls the electromagnetic directional valve and the pump station to enable the hydraulic cylinder 302 to extend out for a set length, the free end of the hook 301 is driven to be discharged downwards, the hook 301 hooks the traction frame 401, and the winding drum 7 is dragged to rotate through the steel wire rope 6; the spool 7 drives the generator/motor 9 through the clutch 12 and the gearbox 8. The generator/motor 9 at this time is operated in a generator/motor state, and outputs electric energy to the outside. In the braking process, the speed of the carriage 2 is gradually reduced, and in order to match the speed of the vehicle with the rotation speed of the power generation/motor 9, the controller B controls the gearbox 8 to adjust the transmission ratio in real time, so that the normal operation of the power generation/motor 9 is ensured.
When the train speed is lower than a certain value, the self-braking system is started to brake the carriage 2. At this time, the energy recovery system works together with the braking system.
After the train is stopped, the controller A retracts the hydraulic cylinder 302 by controlling the electromagnetic directional valve and the pump station, so that the hook 301 is separated from contact with the traction frame 401. Then, the controller B controls the power generation/motor 9 to operate in the motor state. The generator/motor 9 pulls the spool 7 through the gearbox 8 and clutch 12 to rotate in reverse. The reel 7 recovers the wire rope 6 and at the same time drags the traction frame system 4 back. When the traction frame system 4 returns to the original position, the controller B controls the power generation/motor 9 to stop rotating, and disconnects the clutch 12.
The energy recycling process comprises the following steps:
the electric energy output by the generator/motor 9 can be used by electric equipment in a station in real time through the action of the conversion circuit 10, such as an elevator, illumination, ventilation equipment and the like. Excess electrical energy may be stored in the battery 11. When the power generation/motor 9 has no power output or the output power cannot meet the use requirement of the related equipment, the power in the storage battery pack 11 is output to the related equipment through the function of the conversion circuit 10. Through reasonable design, for example, adding power transformation equipment and the like, the conversion circuit 10 is connected with a traction power grid of a train, and the electric energy recovered in the braking process can also be used for driving starting acceleration and normal operation of other trains.
The invention can recycle the braking energy of the train parking in the station, and has the following advantages: firstly, the abrasion of a vehicle braking system in a conventional braking method is reduced, and the service life is prolonged; and secondly, the recovered electric energy can be supplied to equipment or vehicles in the station, so that the running cost of the rail transit system is reduced. In addition, most of the existing energy storage devices are vehicle-mounted, and the energy storage devices in the system can be arranged on a train without increasing extra burden of the vehicle, so that passenger carrying capacity can be increased, and the probability of dangerous accidents such as battery ignition and the like can be reduced. Meanwhile, the energy recovery device can effectively recover a plurality of vehicle energies through one set of energy storage device, and the manufacturing cost of the recovery system can be remarkably saved.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present invention.
Claims (3)
1. The train braking energy recovery system comprises a power generation/motor (9), a conversion circuit (10) and a storage battery pack (11), wherein the power generation/motor (9) is connected with the storage battery pack (11) through the conversion circuit (10), and is characterized by further comprising a hook system (3), a guide frame (13), a guide mechanism, a traction frame system (4), a winding drum (7), a steel wire rope (6), a controller A and a controller B;
the hook system (3) is arranged on a girder of a carriage (2) in the train and is positioned at the lower part of the carriage (2); the hook system (3) comprises a hook (301) and a hydraulic cylinder (302), wherein the connecting end of the hook (301) and the base of the hydraulic cylinder (302) are respectively hinged with the front part and the rear part of the middle section of the girder of the carriage (2), the piston rod end of the hydraulic cylinder (302) is hinged with the middle part of the hook (301), and the free end of the hook (301) extends downwards or retracts upwards in the extending or retracting process of the hydraulic cylinder (302);
the guide mechanism is arranged on the inner sides of two running rails (1) of the train and comprises two guide frames (13), a plurality of carrier rollers (14) and at least one guide pulley (5), wherein the two guide frames (13) are arranged close to the two running rails (1), and the plurality of carrier rollers (14) are arranged on the inner sides of the two running rails (1) at intervals along the extending direction of the running rails (1) and are positioned below the running rails (1); the guide pulley (5) is arranged below the running track (1) and is positioned at one side of the ends of the plurality of carrier rollers (14);
the traction frame system (4) comprises a traction frame (401) and rollers (402) rotatably arranged at two ends of the traction frame (401), and the rollers (402) at two ends of the traction frame (401) are respectively in rolling fit with the two guide frames (13);
the winding drum (7) is rotatably arranged below the running track (1) through a rotating shaft (701) at the center of the winding drum, the end part of the rotating shaft (701) at the center of the winding drum (7) is connected with one transmission shaft of the gearbox (8) through a clutch (12), and the other transmission shaft of the gearbox (8) is connected with the power generation/motor (9);
one end of the steel wire rope (6) is connected with the winding drum (7) and wound outside the winding drum (7), and the other end of the steel wire rope (6) sequentially winds around the plurality of carrier rollers (14) after bypassing the guide pulley (5) and is finally connected with the traction frame (401);
the controller A is arranged on the train and is connected with an electromagnetic reversing valve of the control hydraulic cylinder (302);
the controller B is arranged in the station and is respectively connected with the clutch (12) and the gearbox (8);
when a train enters a station and needs to be braked, a controller B controls a clutch (12) to be attracted, a controller A controls an electromagnetic reversing valve and a pump station to enable a hydraulic cylinder (302) to extend out of a set length, the free end of a hook (301) is driven to be released downwards, the hook (301) hooks a traction frame (401), and then a winding drum (7) is dragged to rotate through a steel wire rope (6); the winding drum (7) drives the power generation/motor (9) to work through the clutch (12) and the gearbox (8), and the power generation/motor (9) at the moment works in a power generation/motor state and outputs electric energy to the outside; after the train is stopped, the controller A retracts the hydraulic cylinder (302) through controlling the electromagnetic directional valve and the pump station to enable the hook (301) to be separated from the traction frame (401), then the controller B controls the power generation/motor (9) to work in a motor state, the power generation/motor (9) drags the winding drum (7) to reversely rotate through the gearbox (8) and the clutch (12), the winding drum (7) recovers the steel wire rope (6), meanwhile, the traction frame system (4) is dragged to return, and after the traction frame system (4) returns to the original position, the controller B controls the power generation/motor (9) to stop rotating and enables the clutch (12) to be disconnected; the electric energy output by the generator/motor (9) is supplied to electric equipment in the station in real time through the action of the conversion circuit (10).
2. A train braking energy recovery system according to claim 1, characterized in that the train has one or more cars (2), and in the case of a plurality of cars (2), the hooking system (3) is arranged in the lower part of the last car (2).
3. A train braking energy recovery system according to claim 1 or 2, characterized in that the traction frame (401) is V-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910918228.1A CN110733351B (en) | 2019-09-26 | 2019-09-26 | Train braking energy recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910918228.1A CN110733351B (en) | 2019-09-26 | 2019-09-26 | Train braking energy recovery system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110733351A CN110733351A (en) | 2020-01-31 |
| CN110733351B true CN110733351B (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910918228.1A Active CN110733351B (en) | 2019-09-26 | 2019-09-26 | Train braking energy recovery system |
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| CN (1) | CN110733351B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111319651A (en) * | 2020-02-19 | 2020-06-23 | 张锐岩 | Be used for rail train cylinder ground interception formula arresting gear |
| CN111546900A (en) * | 2020-04-28 | 2020-08-18 | 张锐岩 | Rail train wire rope intercepting formula arresting gear |
| CN115015111A (en) * | 2022-04-19 | 2022-09-06 | 中铁电气化局集团有限公司 | A test device for regenerative braking energy recovery device of subway traction system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110018247A (en) * | 2009-08-17 | 2011-02-23 | 채규국 | Apparatus for transferring energy using braking power of railway vehicle |
| CN202935364U (en) * | 2012-10-24 | 2013-05-15 | 南京工业大学 | Urban rail train station-entering braking system based on regenerative current utilization |
| CN206202001U (en) * | 2016-09-21 | 2017-05-31 | 比亚迪股份有限公司 | The braking recovery system of energy-accumulating power station, train and train |
| CN106976461A (en) * | 2017-05-08 | 2017-07-25 | 中车资阳机车有限公司 | A kind of suspension monorail compartment main transmission, suspension monorail |
-
2019
- 2019-09-26 CN CN201910918228.1A patent/CN110733351B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110018247A (en) * | 2009-08-17 | 2011-02-23 | 채규국 | Apparatus for transferring energy using braking power of railway vehicle |
| CN202935364U (en) * | 2012-10-24 | 2013-05-15 | 南京工业大学 | Urban rail train station-entering braking system based on regenerative current utilization |
| CN206202001U (en) * | 2016-09-21 | 2017-05-31 | 比亚迪股份有限公司 | The braking recovery system of energy-accumulating power station, train and train |
| CN106976461A (en) * | 2017-05-08 | 2017-07-25 | 中车资阳机车有限公司 | A kind of suspension monorail compartment main transmission, suspension monorail |
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| CN110733351A (en) | 2020-01-31 |
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