CN110733351A - train braking energy recovery system - Google Patents
train braking energy recovery system Download PDFInfo
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- CN110733351A CN110733351A CN201910918228.1A CN201910918228A CN110733351A CN 110733351 A CN110733351 A CN 110733351A CN 201910918228 A CN201910918228 A CN 201910918228A CN 110733351 A CN110733351 A CN 110733351A
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- hook
- train
- guide
- traction frame
- setting
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- 238000011084 recovery Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 238000010248 power generation Methods 0.000 claims 2
- 238000005299 abrasion Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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
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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 recovery system of train braking energy is prepared as setting hook system on girder of carriage in train, setting hook system on girder of carriage, setting hook and hydraulic cylinder on hook system, setting free end of hook to be extended downward or retracted upward in course of extending out or retracting hydraulic cylinder, setting guide mechanism at inner side of two running tracks and including two guide frames, multiple carrier rollers and at least guide pulleys, setting two guide frames near two running tracks and setting multiple carrier rollers and guide pulleys under running tracks, setting roller wheels at two ends of traction frame to be matched with two guide frames separately in rolling mode, setting reel under running tracks in rotary mode by rotary shaft at center of reel and connecting rotary shaft to generator through clutch and gear box, connecting free end of steel cable wound on reel to traction frame after going around guide pulley and multiple carrier rollers.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a braking energy recovery system for trains.
Background
With the continuous development of cities, the transportation mode is also advanced, and rail trains such as light rails and subways become the main transportation modes of many cities at present. The energy consumption of the rail train is greatly increased while the urban traffic operation capacity is improved. Therefore, joint energy technologies such as train energy-saving operation control and regenerative braking are greatly concerned. A large amount of kinetic energy generated by the train in the braking process is converted into heat energy, and the braking system is seriously abraded while the energy is wasted. In the prior art, batteries are mostly arranged in a train to recover braking electric energy and supply power to the train. However, the braking electric energy generated when the train brakes is very large, if the braking electric energy is stored by the vehicle-mounted battery, a large number of batteries need to be installed on the train, so that the total weight of the train is seriously increased, the energy consumption of train operation is influenced, and the cost is also greatly increased.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides types of train braking energy recovery systems, which can solve the problem that the train braking energy is converted into heat energy and is wasted in the prior art, can effectively recover the energy in the train station-entering braking stage, effectively reduce the abrasion degree of the train braking system, prolong the service life of the braking system, simultaneously, the system can not increase the extra burden of the train, can ensure the passenger carrying capacity, can also realize the effective recovery of a plurality of vehicle energies, and can obviously reduce the manufacturing cost of the recovery system.
In order to achieve the purpose, the invention provides train braking energy recovery systems, which comprise a generator/motor, a conversion circuit, a storage battery pack, a hook system, a guide frame, a guide mechanism, a traction frame system, a winding drum, a steel wire rope, a controller A and a controller B, wherein the generator/motor is connected with the storage battery pack through the 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 a connecting end of the hook and a base of the hydraulic cylinder are respectively hinged with the front and the back positions of the middle section of the carriage girder, a piston rod end of the hydraulic cylinder is hinged with the middle part of the hook, and a 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 at the inner sides of two running rails of the train and comprises two guide frames, a plurality of carrier rollers and at least guide pulleys, wherein the two guide frames are arranged close to the two running rails, and the plurality of carrier rollers are arranged at intervals at the inner sides of the two running rails along the extending direction of the running rails and are positioned below the running rails;
the traction frame system comprises a traction frame and rollers which are rotatably arranged at two end parts of the traction frame, and the rollers at the two end parts 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 at the center of the winding drum, the end part of the rotating shaft at the center of the winding drum is connected with transmission shafts of the gearbox through a clutch, and the other transmission shafts of the gearbox are connected with a generator/motor;
the 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 is wound around the guide pulley, then sequentially wound around the plurality of carrier rollers and finally connected with the traction frame;
the controller A is arranged on the train and is connected with the electromagnetic directional valve of the control hydraulic cylinder;
the controller B is arranged in a station and is respectively connected with the clutch and the gearbox.
and as is preferred, the train has or more cars, and when there are more cars, the hook system is disposed at the lower part of the last cars.
, the towing bracket is V-shaped for more convenient connection of the hook to the towing bracket.
According to the invention, the hook system is arranged at the lower part of the carriage, and the traction frame system, the guide mechanism, the winding drum and the steel wire rope which are matched with the hook system are arranged on the inner side of the running track, so that the hook system can be controlled to be in contact with the traction frame system to recover the braking energy when a train enters a station; the traction frame drives the winding drum to rotate in the dragging process, the generator/motor is driven to work through the clutch and the gearbox, 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 when the train enters the station and brakes, and can convert the energy into electric energy to be stored. The system can effectively reduce the abrasion degree of the train braking system and prolong the service life of the braking system, and can provide energy for the lighting, elevator, ventilation system and other equipment in the station with the recovered electric energy, thereby effectively reducing the daily operation cost of the station.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the hook system of the present invention;
fig. 3 is a schematic structural view of the traction frame system of the present invention.
In the figure: 1. the device comprises a track, 2, a carriage, 3, a hook system, 301, a hook, 302, a hydraulic cylinder, 4, a traction frame system, 401, a traction frame, 402, a roller, 5, a guide pulley, 6, a steel wire rope, 7, a winding drum, 701, a rotating shaft, 8, a gearbox, 9, a generator/motor, 10, a conversion circuit, 11, a storage battery, 12, a clutch, 13, a guide frame, 14 and a carrier roller.
Detailed Description
The invention is further described with reference to the following figures.
As shown in FIGS. 1 to 3, the invention provides train braking energy recovery systems, which comprise a generator/motor 9, a conversion circuit 10, a storage battery pack 11, 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, wherein is preferred, the controller A and the controller B can adopt West sub S7-1200, and the generator/motor 9 is connected with the storage battery pack 11 through the 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 and the back positions 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 at 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 guide pulleys 5, wherein the two guide frames 13 are arranged close to the two running rails 1, the plurality of carrier rollers 14 are arranged at 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 traction frame system 4 comprises a traction frame 401 and rollers 402 which are rotatably arranged at two end parts of the traction frame 401, and the rollers 402 at two end parts of the traction frame 401 are respectively matched with the two guide frames 13 in a rolling way;
as shown in fig. 1, the winding drum 7 is rotatably mounted below the running track 1 by a rotating shaft 701 at the center thereof, the end of the rotating shaft 701 at the center of the winding drum 7 is connected with transmission shafts of the gearbox 8 by a clutch 12, and another transmission shafts of the gearbox 8 are connected with the generator/motor 9, wherein the rotating shaft 701 is vertically rotatably arranged in the winding drum 7, and in fig. 1, the angle of the rotating shaft 701 is changed in order to show the connection relationship of the system clearly through a plane view.
The 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 is wound around the guide pulley 5, then sequentially wound around the carrier rollers 14 and finally connected with the traction frame 401;
the controller A is arranged on the train and is connected with the electromagnetic directional valve of the control hydraulic cylinder 302;
the controller B is arranged in a station and is respectively connected with the clutch 12 and the gearbox 8.
The train has cars or cars 2, and when there are multiple cars 2, the hook system 3 is disposed at the lower portion of the last cars 2.
In order to more conveniently connect the hook with the traction frame, the traction frame 401 is in a V shape.
The working principle is as follows:
and (3) energy recovery process:
when the train enters the station, braking is needed, and the controller B controls the clutch 12 to be closed. The controller A controls the electromagnetic directional valve and the pump station to enable the hydraulic cylinder 302 to extend out of a set length, the free end of the hook 301 is driven to be discharged downwards, the hook 301 can hook the traction frame 401, and the winding drum 7 is dragged to rotate through the steel wire rope 6; the reel 7 drives the generator/motor 9 to operate through the clutch 12 and the transmission 8. The generator/motor 9 at this time operates in a generator/motor state, and outputs electric power to the outside. In the braking process, the speed of the carriage 2 is gradually reduced, and in order to match the vehicle speed with the rotating speed of the generator/motor 9, the controller B controls the transmission 8 to adjust the transmission ratio of the transmission in real time, so that the normal work of the generator/motor 9 is ensured.
When the train speed is lower than the fixed value of , the self brake system is started to brake the carriage 2, and at the moment, the energy recovery system and the brake system work together.
After the train is stopped stably, the controller A controls the electromagnetic directional valve and the pump station to enable the hydraulic cylinder 302 to retract, so that the hook 301 is separated from the traction frame 401. Then, the controller B controls the generator/motor 9 to operate in the motor state. The generator/motor 9 drags the reel 7 in reverse rotation through the gearbox 8 and the clutch 12. The winding drum 7 recovers the steel wire rope 6 and drags the traction frame system 4 to return. When the traction frame system 4 returns to the home position, the controller B controls the generator/motor 9 to stop rotating and disconnects the clutch 12.
An energy recycling process:
the electric energy output by the generator/motor 9 can be used by electric equipment in the station, such as an elevator, lighting equipment, ventilation equipment and the like in real time through the action of the conversion circuit 10. Excess electrical energy can be stored in the battery pack 11. When the generator/motor 9 has no electric energy output or the output power cannot meet the use requirement of the relevant equipment, the electric energy in the storage battery pack 11 is output to the relevant equipment for use through the action of the conversion circuit 10. Through reasonable design, for example, a power transformation device is added, the conversion circuit 10 is connected with a traction power grid of a train, and electric energy recovered in a braking process can also be used for driving other trains to start, accelerate and normally run.
The invention can recover the braking energy of the train when the train stops, enters the station and stops, and has the advantages that reduces the abrasion of the braking system of the train in the conventional braking method, prolongs the service life, and can supply the recovered electric energy to the equipment or the train in the station, thereby reducing the running cost of the rail transit system.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (3)
- The braking energy recovery system for the trains 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), the connecting end of the hook (301) and the base of the hydraulic cylinder (302) are respectively hinged with the front and the rear positions 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 side of two running rails (1) of the train and comprises two guide frames (13), a plurality of carrier rollers (14) and at least guide pulleys (5), wherein the two guide frames (13) are arranged close to the two running rails (1), the carrier rollers (14) are arranged on the inner side 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 traction frame system (4) comprises a traction frame (401) and rollers (402) which are rotatably arranged at two end parts of the traction frame (401), wherein the rollers (402) at the two end parts of the traction frame (401) are respectively matched with the two guide frames (13) in a rolling manner;the winding drum (7) is rotatably arranged below the running track (1) through a rotating shaft (701) at the center of the winding drum (7), the end part of the rotating shaft (701) at the center of the winding drum (7) is connected with transmission shafts of the gearbox (8) through a clutch (12), and the other transmission shafts of the gearbox (8) are connected with a generator/motor (9);the 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) is wound around the guide pulley (5), then sequentially wound around the carrier rollers (14) and finally connected with the traction frame (401);the controller A is arranged on the train and is connected with an electromagnetic directional valve of a control hydraulic cylinder (302);the controller B is arranged in a station and is respectively connected with the clutch (12) and the gearbox (8).
- 2. train braking energy recovery system according to claim 1, characterized in that, the train has or more cars (2), and when there are more cars (2), the hook system (3) is arranged at the lower part of the last cars (2).
- 3. 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 true CN110733351A (en) | 2020-01-31 |
| CN110733351B CN110733351B (en) | 2023-11-10 |
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Family Applications (1)
| 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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| Country | Link |
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| CN (1) | CN110733351B (en) |
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 | Braking system for urban rail train station approaching based on renewable 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 | Braking system for urban rail train station approaching based on renewable 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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| Publication number | Publication date |
|---|---|
| CN110733351B (en) | 2023-11-10 |
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