CN104595257B - A kind of hydraulic pressure for metro braking energy stores and release device - Google Patents
A kind of hydraulic pressure for metro braking energy stores and release device Download PDFInfo
- Publication number
- CN104595257B CN104595257B CN201510003341.9A CN201510003341A CN104595257B CN 104595257 B CN104595257 B CN 104595257B CN 201510003341 A CN201510003341 A CN 201510003341A CN 104595257 B CN104595257 B CN 104595257B
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- hydraulic
- plunger
- cam ring
- energy
- oil
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a kind of hydraulic accumulator.It includes cam ring, hydraulic plunger, oil sucting valve, draining valve and clutch, described cam ring side is provided with clutch, some hydraulic plungers are had inside cam ring, plunger head in hydraulic plunger is equipped with roller, roller is arranged on the circumferential wave wave-like track quilt within cam ring, the reciprocating motion rotating formation plunger of cam ring, has inlet port and oil drain out on hydraulic plunger；When plunger moves upward, form negative pressure in hydraulic cylinder, the hydraulic oil in fuel tank by after oil sucting valve in inlet port enters plunger cavity, when plunger moves downward, by hydraulic oil in plunger cavity after oil drain out by draining valve press-in accumulator.The present invention utilizes hydraulic type to carry out energy storage, and braking energy is not transformed into electric energy, and simply stores into hydraulic energy, and efficiency is higher than existing energy storage mode.
Description
Technical field
The present invention relates to a kind of hydraulic energy-accumulating system for metro braking energy regenerating, more precisely, relate to a kind of method by hydraulic energy-accumulating and realize the hydraulic control system of metro braking energy regenerating and recycling.
Background technology
City underground, as the most important a kind of vehicles, all will become the vehicles of main flow in each city of following China.But subway is different from high ferro motor-car, owing to its station spacing is shorter, launch train, braking are frequently；Thus from the point of view of exchange energy, braking energy is considerable, if do not considered Brake Energy recycling, the huge waste of the energy will be caused.
Based on this, how increasing engineers and technicians realizes the recycle and reuse of metro braking energy if beginning one's study.Up to the present, the scheme of metro braking energy regenerating typically has a following several ways: (1) resistance energy-dissipating type, this scheme is to convert electrical energy into form of thermal energy to dissipate, do not recycle process, thus result in the waste that the energy is unnecessary, and resistive dissipation can cause environment temperature to raise, it is therefore desirable to increase corresponding ventilation, refrigeration plant, which again increases corresponding power consumption.(2) capacitor energy storage type, the method is Brake Energy to be converted into electrical power storage in super capacitor, when launch train or in running whenever necessary, then discharge.Its major defect is that energy density is low, and therefore, identical energy is accomplished by arranging the Capacitor banks that volume is huger, and electric capacity causes service life short because being frequently in charging and discharging state；(3) flywheel energy storage type, its general principle is the same with the principle of capacitor energy storage type, but be in High Rotation Speed state and flywheel mass for a long time due to flywheel the biggest, therefore friction energy-dissipating problem is serious, and flywheel working life is short.(4) inversion feedback type, the method is to be that industrial-frequency alternating current is directly fed back to electrical network by the DC inverter that braking produces, but this technical sophistication, equipment investment is very big, and correlation technique is in conceptual phase, and prematurity.
Reclaim owing to above-mentioned various Brake Energy recovery methods are required for that Brake Energy is converted into electric energy, the mechanical energy of train motion is converted electrical energy into again during recycling, these energy convert and transmission process causes the biggest energy loss, and therefore the energy recovery efficiency of these methods is the highest.
Except above-mentioned energy storage method, another energy-storage method is exactly that Brake Energy is converted into the hydraulic energy that controllability is stronger, when needs recycle, directly by hydraulic energy transfer be mechanical energy drive train driving, so just simplify energy conversion process, improve energy utilization efficiency.The mode utilizing hydraulic energy-accumulating is braked energy regenerating many application on city bus, but owing to subway volume weight is big, Brake Energy is very big, and bus hydraulic energy-accumulating scheme is not particularly suited for the recovery occasion of this big energy of subway.Based on above-mentioned background, the present invention proposes a kind of hydraulic energy-accumulating system being applied to metro braking energy recycle and reuse.
Summary of the invention
The present invention proposes a kind of device utilizing cam ring and multiple hydraulic plunger to combine to collect the scheme of metro braking energy.
The present invention comprises cam ring, hydraulic plunger, oil sucting valve, draining valve and clutch, described cam ring side is provided with clutch, some hydraulic plungers are had inside cam ring, plunger head in hydraulic plunger is equipped with roller, roller is arranged in the circumferential wave wave-like track within cam ring, the reciprocating motion rotating formation plunger of cam ring, has inlet port and oil drain out on hydraulic plunger；When plunger moves upward, form negative pressure in hydraulic cylinder, the hydraulic oil in fuel tank by after oil sucting valve in inlet port enters plunger cavity, when plunger moves downward, by hydraulic oil in plunger cavity after oil drain out by draining valve press-in accumulator
The general principle of the present invention is by cam ring and axletree being synchronized when braking, the convert rotational motion of cam ring is become the reciprocating motion of hydraulic piston, and by oil sucting valve and the control of draining valve, be that high pressure liquid force feed is stored in accumulator by the convert reciprocating motion of hydraulic plunger.When launch train, this section hydraulic can be used for driving hydraulic motor, drive vehicle wheel rotation, thus realize the recycling of metro braking energy
The present invention mainly has a following advantage:
1. utilizing hydraulic type to carry out energy storage, braking energy is not transformed into electric energy, and simply stores into hydraulic energy, and efficiency is higher than existing energy storage mode.
2. hydraulic type energy density is high, utilizes hydraulic accumulation energy, and it is the least that system bulk can be done.
3. the program can realize beginning and the end of thermal energy storage process by clutch, it is to avoid unnecessary idle running.
4. the control of hydraulic circuit can be realized by magnetic valve, it is easy to accomplish automation.Numerous oil circuits can pass through hydraulic manifold block integrating control.
5. Hydraulic Elements technology maturation, good reliability.
6. use this hydraulic energy retracting device, it is possible to achieve the quick and stable braking of subway, restart brief acceleration big, be obviously improved vehicle performance.
Accompanying drawing explanation
Fig. 1 is the structure chart of the cam ring of apparatus of the present invention；
Fig. 2 is the oil circuit of hydraulic plunger；
Fig. 3 is the enlarged drawing of hydraulic plunger structure；
Fig. 4 is apparatus of the present invention schematic layout patterns in carriage chassis.
Specific implementation
The design philosophy of the present invention is described below by schematic diagram.
The present embodiment is mainly made up of cam ring, hydraulic plunger, oil sucting valve, draining valve, clutch and controller.As shown in Figure 1: the peripheral edge portion 2 at cam ring has corrugated track, the roller 3-1 of cam ring internal hydraulic pressure plunger rod end is contained in corrugated track；The peripheral edge portion of cam ring, surface needs through Overheating Treatment, and hardness reaches 55-60HRC.When metro braking, being promoted the switch of clutch (referring to Fig. 4) by the action of shift fork, so that cam ring is Tong Bu with subway wheel shaft, cam ring rotates.So, roller will move in the corrugated track of cam ring, due to relative motion, as in figure 2 it is shown, plunger 5 will carry out upper and lower motion.Owing to cam ring rotates one week, each roller can rise and fall repeatedly, thus forms multiaction mechanism, is stored in accumulator 7 such that it is able to the motion of low-speed big is converted into hydraulic energy efficiently.
In the hydraulic circuit shown in Fig. 2: when plunger moves upward, form negative pressure in hydraulic cylinder, the hydraulic oil in fuel tank 3 is sucked in plunger cavity by oil sucting valve 4.When plunger moves downward, hydraulic oil is pressed in accumulator by draining valve 6.
In hydraulic plunger enlarged drawing Fig. 3, along with the up and down motion of plunger 3-4, hydraulic oil enters oil pocket, then the accumulator 7 being pressed into Fig. 2 from oil drain out 3-5 from inlet port 3-3.
Uniform 7 little hydraulic plungers in cam ring, along with the rotation of cam ring, 7 hydraulic plungers each complete to be pressed into hydraulic oil accumulator 7.
When metro braking, shift fork b in Fig. 4 promotes cam ring c so that Tong Bu with wheel a with the clutch d that cam ring c is connected, and also the rotation of wheel a will be converted into the rotation of cam ring c, it is achieved thereby that above-mentioned action.
When subway starts, accumulator 7 just can drive hydraulic motor, and for low speed hydraulic motor, its output moment of torsion is relatively big, up to thousand of to several ten thousand Nm, can meet torque demand when subway starts.Whole process, Brake Energy does not translates into electric energy, but is directly translated into hydraulic energy and stores and recycle.
Claims (1)
1. the hydraulic pressure for metro braking energy stores and release device, comprise cam ring, hydraulic plunger, oil sucting valve, draining valve and clutch, it is characterized in that: described cam ring side is provided with clutch, some hydraulic plungers are had inside cam ring, plunger head in hydraulic plunger is equipped with roller, roller is arranged in the circumferential wave wave-like track within cam ring, the reciprocating motion rotating formation plunger of cam ring, has inlet port and oil drain out on hydraulic plunger；When plunger moves upward, form negative pressure in hydraulic cylinder, the hydraulic oil in fuel tank by after oil sucting valve in inlet port enters plunger cavity, when plunger moves downward, by hydraulic oil in plunger cavity after oil drain out by draining valve press-in accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510003341.9A CN104595257B (en) | 2015-01-06 | 2015-01-06 | A kind of hydraulic pressure for metro braking energy stores and release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510003341.9A CN104595257B (en) | 2015-01-06 | 2015-01-06 | A kind of hydraulic pressure for metro braking energy stores and release device |
Publications (2)
| Publication Number | Publication Date |
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| CN104595257A CN104595257A (en) | 2015-05-06 |
| CN104595257B true CN104595257B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510003341.9A Active CN104595257B (en) | 2015-01-06 | 2015-01-06 | A kind of hydraulic pressure for metro braking energy stores and release device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105059274B (en) * | 2015-08-12 | 2018-03-20 | 王林翔 | A kind of vehicle energy conversion and recovery device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510340Y (en) * | 2001-10-09 | 2002-09-11 | 周劲松 | Vehicle-ship vibration energy recovering air-compressor |
| CN202612520U (en) * | 2012-05-24 | 2012-12-19 | 上海神舟汽车节能环保有限公司 | Hydraulic hybrid electric vehicle transmission capable of recycling idling energy |
| CN203832260U (en) * | 2014-05-14 | 2014-09-17 | 常州维航节能科技有限公司 | Electric train braking energy recovery hydraulic energy conservation and emission reduction device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4438955B2 (en) * | 2005-04-01 | 2010-03-24 | トヨタ自動車株式会社 | Pressure accumulator |
| JP2010071439A (en) * | 2008-09-22 | 2010-04-02 | Kayaba System Machinery Kk | Pressure source system |
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2015
- 2015-01-06 CN CN201510003341.9A patent/CN104595257B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510340Y (en) * | 2001-10-09 | 2002-09-11 | 周劲松 | Vehicle-ship vibration energy recovering air-compressor |
| CN202612520U (en) * | 2012-05-24 | 2012-12-19 | 上海神舟汽车节能环保有限公司 | Hydraulic hybrid electric vehicle transmission capable of recycling idling energy |
| CN203832260U (en) * | 2014-05-14 | 2014-09-17 | 常州维航节能科技有限公司 | Electric train braking energy recovery hydraulic energy conservation and emission reduction device |
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| CN104595257A (en) | 2015-05-06 |
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