CN206766038U - A kind of descending energy regenerating for electro-hydraulic railcar and slow system - Google Patents
A kind of descending energy regenerating for electro-hydraulic railcar and slow system Download PDFInfo
- Publication number
- CN206766038U CN206766038U CN201720553130.7U CN201720553130U CN206766038U CN 206766038 U CN206766038 U CN 206766038U CN 201720553130 U CN201720553130 U CN 201720553130U CN 206766038 U CN206766038 U CN 206766038U
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- China
- Prior art keywords
- hydraulic
- directional control
- solenoid directional
- control valve
- valve
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The utility model discloses a kind of descending energy regenerating for electro-hydraulic railcar and slow system, its proportion of utilization valve (9) adjusts braking torque, vehicle at the uniform velocity descending is realized, braking energy is reclaimed using battery (1) and accumulator (15)；During descending, preferentially using accumulator (15) recovery braking energy, after if accumulator (15) is full of fluid, railcar is still in descending state, hydraulic pump (4) work can be driven using hydraulic motor (10), generated electricity so as to instead drive motor (3) by the hydraulic pressure Vavle switching oil circuit in system, three-phase alternating current is converted into direct current using the rectified action of two-way inverter (2), is stored in battery (1).The utility model realizes constant speed Energy Saving Control during electro-hydraulic railcar descending, have friction-free braking, energy-conservation and it is safe and reliable the characteristics of.
Description
Technical field
The utility model is related to electro-hydraulic railcar field, specifically a kind of descending energy regenerating for electro-hydraulic railcar with
Slow system.
Background technology
Railcar is rail line equipment essential during construction and operation maintenance, and it can be used for vehicle
Traction and personnel, Material Transportation etc..At present, the widely used railcar of in the market mainly has two kinds：The first is to use
Oil-engine driven diesel rail car, its transmission system is simple, technology maturation, but low-speed stability is poor, efficiency is low, and discharge
Pernicious gas can pollute operating environment.Second is using the power track car of storage battery unit driving, although in solving
Disposal of pollutants and the noise problem of railcar are fired, but still suffers from the shortcomings of installed power is high, course continuation mileage is short.
Existing railcar using friction service braking system, is led in subway tunnel descending (particularly long steep grade) heavy duty more
Brake block overheating failure easily occurs when drawing so as to cause driving accident, and manipulates difficult, speed and is difficult to control.Transported for road
Defeated vehicle, in order to solve the speed governing of descending process and braking, current achievement in research mainly has fluid power auxiliary braking, starts mechanism
The braking methods such as dynamic and retarder brake.Fluid power auxiliary braking mainly applies to heavy-duty freight car and motor bus；Engine braking can only
Limited stopping power is provided and brake force is uncontrollable；There is the retarder brake system that scholar proposes adoption rate overflow valve, but should
System can not carry out energy regenerating, and energy dissipation is serious.Above method can not solve the descending speed of electro-hydraulic railcar well
Spend manipulation problem.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of descending energy regenerating for electro-hydraulic railcar with
Slow system, using closed type hydraulic system, is driven using storage battery unit, and speed governing and control are realized using Hydrostatic drive technology
System, realize railcar constant speed energy-conservation braking, have friction-free braking, energy-conservation and it is safe and reliable the characteristics of.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of descending energy regenerating for electro-hydraulic railcar and slow system, battery, two-way inverter, motor and liquid
Press pump is sequentially connected；The oil-out of the hydraulic pump respectively with the A mouths of the first solenoid directional control valve and the B mouths of the 6th solenoid directional control valve
It is connected, the oil inlet A with the first solenoid directional control valve respectively1Mouth, the E of the second solenoid directional control valve1The D of mouth and the 3rd solenoid directional control valve1
Mouth is connected；
The B of 6th solenoid directional control valve1The F of mouth and the 5th solenoid directional control valve1Mouth is all connected to the A mouths of hydraulic motor, the
The E mouths of two solenoid directional control valves and the C mouths of proportioning valve are all connected to the B mouths of hydraulic motor；The hydraulic motor, reducing gear and car
Wheel is sequentially connected；
The F mouths of 5th solenoid directional control valve are connected to the C of proportioning valve1Mouthful, the C of the proportioning valve1Mouth is connected to the 3rd electricity
The D mouths of magnetic reversal valve；The C of the proportioning valve1Mouth is also connected to the 4th solenoid directional control valve, the 4th solenoid directional control valve, manually
Stop valve and accumulator are sequentially connected.
Compared with prior art, the beneficial effects of the utility model are：When railcar normal operation, by system
Hydraulic valve switches to driving circuit, hydraulic power source driving railcar traveling；When railcar down hill braking, pass through the hydraulic pressure in system
Vavle switching is brake circuit, and proportion of utilization valve produces braking torque control railcar constant-speed operation, utilizes battery and accumulator
Recovery and storage down hill braking energy；Energy in battery is powered available for motor, and the energy in accumulator can be used for aiding in
Start motor or process auxiliary drive hydraulic motor, realize constant speed Energy Saving Control during railcar descending, there is friction-free braking, section
Can and it is safe and reliable the characteristics of.
Brief description of the drawings
Fig. 1 is a kind of descending energy regenerating for electro-hydraulic railcar and slow system structure diagram.
In figure：1- batteries, the two-way inverters of 2-, 3- motors, 4- hydraulic pumps, the solenoid directional control valves of 5- first, the electricity of 6- second
Magnetic reversal valve, the solenoid directional control valves of 7- the 3rd, the solenoid directional control valves of 8- the 4th, 9- proportioning valves, 10- hydraulic motors, 11- reducing gears,
12- wheels, the solenoid directional control valves of 13- the 5th, 14- hand stop valves, 15- accumulators, the solenoid directional control valves of 16- the 6th, 17- controls
Device.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, the system is divided into two parts of driving circuit and brake circuit, in normal drive condition, passes through and be
Hydraulic valve in system switches to driving circuit；In down hill braking state, brake circuit is switched to by the hydraulic valve in system.
Normal drive condition：
In normal drive condition, controller 17 is upper by controlling electromagnet to work in the second solenoid directional control valve 6, and the 6th
Solenoid directional control valve 16 works in bottom, and remaining valve is in normally closed closed state, and battery 1 supplies through two-way inverter 2 to motor 3
Electricity, motor 3 drive hydraulic pump 4 to produce hydraulic oil, sequentially pass through B mouths, the B of the 6th solenoid directional control valve 161Mouth is through hydraulic motor 10
A mouths enter hydraulic motor 10, produce moment of torsion and pass through hydraulic motor 10 through the traveling of 11 driving moment of reducing gear 12, low pressure oil
B mouths, sequentially pass through E mouths, the E of the second solenoid directional control valve 61Mouth, flow back to the entrance of hydraulic pump 4.
Down hill braking state：
In down hill braking state, motor 3 is closed, hydraulic pump 4 and motor 3 are freely shut down.Controller 17 is by controlling electromagnetism
Iron makes the 6th solenoid directional control valve 16 work in bottom, and proportioning valve 9 works in left position, and the 4th solenoid directional control valve 8 works in right position, its
Extraction raffinate pressure valve is in normally off.Wheel 12 drives reducing gear 11 to drive hydraulic motor 10 to rotate, now hydraulic motor 10
For pump condition, B mouth outflow of the caused hydraulic oil through hydraulic motor 10, into the C mouths of proportioning valve 9, controlled by controller 17
The valve port opening of proportioning valve 9 can produce certain pressure in driving circuit, so as to produce a level pressure in the B mouths of two-way hydraulic motor
Power, so as to produce certain braking torque equilibrium orbit car because the gradient is and the acceleration moment of torsion that is subject to by hydraulic motor 10, allow car
Keep constant-speed operation.
The fluid of proportioning valve 9 is flowed through by being stored in the 4th solenoid directional control valve 8 and the entrance accumulator 15 of hand stop valve 14
Get up, expired fluid when being stored in accumulator 15, if railcar controls electromagnet to make still in descending state by controller 17
4th solenoid directional control valve 8 switches to left position, and the 3rd solenoid directional control valve 7 switches to bottom, and now hydraulic pump 4 is motor operating conditions, is dragged
Dynamic motor 3 is generated electricity, and caused electric energy is reclaimed after the conversion of two-way inverter 2 by battery 1.Now high-voltage oil liquid is through hydraulic pump 4
Oil inlet enter, flowed out from the oil-out of hydraulic pump 4, return to the A mouths of hydraulic motor 10.After the completion of accumulator topping up, store
When battery is also filled with electricity or charge condition deficiency, the first solenoid directional control valve 5 can be made to work in right position, proportioning valve by controller 17
9 work in left position, and the 5th solenoid directional control valve 13 works in left position, and remaining valve is in normally off.Hydraulic pump and the first electromagnetism
The formation of reversal valve 5 one is closed circuit, and proportioning valve 9, the 5th solenoid directional control valve 13 and the formation of hydraulic motor 10 one are closed circuit, can pass through control
Device 17 processed controls the valve port opening regulating system pressure of proportioning valve 9, and establishing a counter balance torque by hydraulic motor 10 maintains vehicle
Travel at the uniform speed.
During gradient difference, the acceleration moment of torsion that railcar is subject to is different, can be produced by changing the valve port opening of proportioning valve 9
Raw different braking torque carrys out the acceleration moment of torsion that equilibrium orbit car is subject to, and allows railcar to keep constant-speed operation.
Recover energy utilization：
Battery 1 store utilization of power mode be mainly：Battery 1 can pass through the reversion reaction of two-way inverter 2
It is exchange electricity output by DC conversion, supply motor 3-dimensional holds its normal operation.
The hydraulic oil Land use systems that accumulator 15 stores have two kinds, the first, assistant starting motor 3.Motor 3 is from static
State can produce very big dash current and power consumption when directly initiating, and great impact is caused to motor itself and battery, shorten
The course continuation mileage of railcar.Therefore, the hydraulic oil assistant starting motor 3 of storage can be utilized.Method is as follows：Pass through controller 17
4th solenoid directional control valve 8 is switched into right position, the 3rd solenoid directional control valve 7 switches to bottom, and the 6th solenoid directional control valve 16 switches on
Bottom, remaining valve are fully closed.Hydraulic oil in accumulator 15 enters by the 4th solenoid directional control valve 8, the 3rd solenoid directional control valve 7 successively
Enter the oil inlet of hydraulic pump, driving hydraulic pump 4 rotates, and so as to which drive motor 3 accelerates to rated speed, then starts motor 3.It is auxiliary
After helping the start completion of motor 3, controller 17 controls the 3rd solenoid directional control valve 7 to switch on bottom, and the 4th solenoid directional control valve 8 switches on
Zuo Wei, and the second solenoid directional control valve 6 switched to upper, oil circuit is switched into driving circuit.Second, assistant starting vehicle.
When railcar is in operation, it is necessary to when climbing or quickly starting, the 4th solenoid directional control valve 8 is switched to right position by controller 17,
5th solenoid directional control valve 13 switches to left position, and the second solenoid directional control valve 6 works in upper, and the 6th solenoid directional control valve 16 works in down
Position, remaining valve are in normally off.Hydraulic oil in bladder accumulator 15 is successively by the electricity of the 4th solenoid directional control valve the 8, the 5th
Magnetic reversal valve 13 drives hydraulic motor 10 with hydraulic oil joint caused by the hydraulic pump 4 of the 6th solenoid directional control valve 16 is flowed through, and reaches
Increase driving torque or the purpose quickly started.
The hand stop valve 14 of the entrance of accumulator 15 is mainly used in the off-load operation of system overhaul.Proportioning valve 9 can be according to not
Valve port opening is adjusted using controller for same duty requirements.Battery 1, two-way inverter 2, accumulator 15 and controller
17 running parameter can be selected with reference to different duty requirements.
Claims (1)
1. a kind of descending energy regenerating for electro-hydraulic railcar and slow system, it is characterised in that
Battery (1), two-way inverter (2), motor (3) and hydraulic pump (4) are sequentially connected；The oil-out of the hydraulic pump (4)
It is connected respectively with the A mouths of the first solenoid directional control valve (5) and the B mouths of the 6th solenoid directional control valve (16), oil inlet is electric with first respectively
The A of magnetic reversal valve (5)1Mouth, the E of the second solenoid directional control valve (6)1The D of mouth and the 3rd solenoid directional control valve (7)1Mouth is connected；
The B of 6th solenoid directional control valve (16)1The F of mouth and the 5th solenoid directional control valve (13)1Mouth is all connected to hydraulic motor (10)
A mouths, the E mouths of the second solenoid directional control valve (6) and the C mouths of proportioning valve (9) are all connected to the B mouths of hydraulic motor (10)；The liquid
Pressure motor (10), reducing gear (11) and wheel (12) are sequentially connected；
The F mouths of 5th solenoid directional control valve (13) are connected to the C of proportioning valve (9)1Mouthful, the C of the proportioning valve (9)1Mouth is connected to
The D mouths of 3rd solenoid directional control valve (7)；The C of the proportioning valve (9)1Mouth is also connected to the 4th solenoid directional control valve (8), and the described 4th
Solenoid directional control valve (8), hand stop valve (14) and accumulator (15) are sequentially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720553130.7U CN206766038U (en) | 2017-05-18 | 2017-05-18 | A kind of descending energy regenerating for electro-hydraulic railcar and slow system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720553130.7U CN206766038U (en) | 2017-05-18 | 2017-05-18 | A kind of descending energy regenerating for electro-hydraulic railcar and slow system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206766038U true CN206766038U (en) | 2017-12-19 |
Family
ID=60641488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720553130.7U Withdrawn - After Issue CN206766038U (en) | 2017-05-18 | 2017-05-18 | A kind of descending energy regenerating for electro-hydraulic railcar and slow system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206766038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107082073A (en) * | 2017-05-18 | 2017-08-22 | 西南交通大学 | A kind of descending energy regenerating for electro-hydraulic railcar and slow system |
-
2017
- 2017-05-18 CN CN201720553130.7U patent/CN206766038U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107082073A (en) * | 2017-05-18 | 2017-08-22 | 西南交通大学 | A kind of descending energy regenerating for electro-hydraulic railcar and slow system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171219 Effective date of abandoning: 20190301 |