CN104163175A - Urban railway traffic system - Google Patents
Urban railway traffic system Download PDFInfo
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- CN104163175A CN104163175A CN201410417665.2A CN201410417665A CN104163175A CN 104163175 A CN104163175 A CN 104163175A CN 201410417665 A CN201410417665 A CN 201410417665A CN 104163175 A CN104163175 A CN 104163175A
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Abstract
The invention discloses an urban railway traffic system. The urban railway traffic system comprises a train body. Traction wear plates are arranged on the two sides of the train body. A train traction brake transmission system is arranged on a ground station. The train traction brake transmission system comprises driving motors, flywheels, speed regulation mechanisms and traction wheels, wherein the driving motors and the flywheels are connected with the corresponding traction wheels in a transmission mode through the speed regulation mechanisms, and the traction wheels correspond to the traction wear plates of the train body. The urban railway traffic system is particularly suitable for small and medium cities or towns, because the passenger flow density in the small and medium cities or towns is not large, and the distance between every two adjacent stations is not far and ranges from 0.8 km to 3 km. The urban railway traffic system is a small train system characterized by low self weight, small groups and short departure intervals, and can transport passengers safely and rapidly; the lighter the self weigh of the train is, the larger the passenger capacity is, and the better the utilization rate and the energy saving effect are.
Description
Technical field
The present invention relates to field of track traffic, particularly a kind of City Rail Transit System.
Background technology
Track traffic is solving urban traffic blocking, aerial contamination and the inevitable direction that realizes sustainable development.Each big city is all putting forth effort construction and Urban Rail Transit Development, as subway, light rail etc. at present.
Urban track traffic, in actual application, also exists some problems, as large in dead weight of vehicle, traction energy consumption is higher, train operation reliability needs to be further improved etc.For existing City Rail Transit System, also need to continue to optimize and solve the problems such as the energy consumption that exists in operation, vibration, noise, make its green safety more.
The developing direction in future city is in giving priority to, small city or cities and towns, limits metropolitan development, to realize the reasonable disposition of resource simultaneously.In small and medium-sized cities, the intensity of passenger flow is little, should adopt the compact car system from heavy and light, little marshalling, short departure interval, and with safety, quick passenger-carrying, dead weight of vehicle is lighter, and passenger capacity is larger, and degree of utilization and energy-saving effect are better.
The developing direction of green city's track traffic is green energy conservation, environmental protection, economic and practical, safe and reliable.Therefore, green track traffic is developed in following small and medium-sized cities need to build new Rail Transit System system, from system, provides green solution.
Summary of the invention
For the problems referred to above, the invention provides a kind of power system ground Novel rail transit system AT STATION, there is energy-conserving and environment-protective, economic and practical, safe and reliable feature, can in green, the intelligent urban track traffic of development, apply.
To achieve these goals, technical scheme of the present invention is as follows:
A City Rail Transit System, is characterized in that, comprises train body, in train body both sides, traction wearing plate is set; At station, ground, arrange train traction brake actuating system, described train traction brake actuating system comprises drive motor, flywheel, regulating mechanism, traction wheel, described drive motor and flywheel are in transmission connection by regulating mechanism and traction wheel, and described traction wheel is corresponding with the traction wearing plate of train body.
In the present invention, the drive motor of described train traction brake actuating system is arranged on a pusher, by this pusher, is controlled between drive motor and flywheel and is connected or departs from, drive motor and flywheel disengaging under normal circumstances.
In the present invention, described train traction brake actuating system also comprises a control traction wheel laminating or departs from the pendulous device of described traction wearing plate.
In the present invention, described traction wheel comprises two groups, is arranged in train body both sides; Every group of traction wheels comprise again along train length's direction arranges several traction wheels of laying.
In the present invention, described traction wheel is rubber wheel.
In the present invention, described City Rail Transit System also comprise in order to by train traction to the cable system at nearest station, described cable system comprises and is arranged on ground hawser and is arranged on the connecting element in order to connection cable on train body.
In the present invention, be provided with in orbit electromagnetic rail brake device.
In the present invention, at station, ground, arrange for weighing the weight of train so that calculate the train weighing system of resistance.
In the present invention, described City Rail Transit System also comprises a control system, and described train weighing system, motor are all connected with this control system; In described train traction brake actuating system, be provided with to measure speed sensor, this speed sensor is connected with control system.
In the present invention, adjacent two ground adopts steep gradient circuit between station, and one or more in descending, flat slope and three sections of upward slope combines.
In the present invention, the circuit at station, adjacent two ground is arranged to spill, and station, ground is arranged on ground, and circuit is arranged on underground, and Ground Vehicle erect-position is in the high point of circuit.
In the present invention, the joint number of train body is 1-4 joint.
Principle of work of the present invention is: drive motor and flywheel are the sources of system haulage capacity, as required energy are passed to traction wheel by regulating mechanism.Generally, preferentially use flywheel to drive.During traction, according to the size of the required tractive force of train body, control system is controlled the traction wheel of some and the laminating of the traction wearing plate of train body both sides, the friction force that interacts and produce by traction wheel and traction wearing plate, the energy of flywheel and tractive force are passed to train, and drive train to advance; When train enters the station, according to the required braking force size of train braking, control traction wheel and the laminating of traction wearing plate of some, the speed of train is delivered to traction wheel, and passes to flywheel by regulating mechanism, carry out energy recovery and storage.Consumption along with train operation energy, the energy that each flywheel stores also can decline, by control system, the rotating speed of flywheel is monitored, as flywheel stored energy is less than the threshold values of setting, can rotate by drive motor flywheel driven, flywheel energy storage is supplemented, and drive motor and flywheel depart under normal circumstances.Train, at circuit section operation, is realized auxiliary traction (descending) and auxiliary braking (upward slope) by circuit.
During the present invention is especially applicable, small city or cities and towns, in, in small city or cities and towns, the intensity of passenger flow is little, and the distance between adjacent two platforms neither be too far away, if 0.8 km to 3 km is within the scope of this.
Train traction brake actuating system of the present invention is arranged on ground, station, and the departures Acceleration of starting of train and the stopping-down that arrives at a station are realized by being arranged on the train traction brake actuating system of platform.Compare with existing Rail Transit System, train-installed traction, braking, ancillary system etc. can be cancelled, and train only retains the equipment such as storage battery or super capacitor to illumination, air-conditioning and calibration package power supply.Train composition design is simplified greatly, and train deadweight significantly reduces, and train fault point reduces, and train reliability has a distinct increment.
The present invention is provided with cable system, when vehicle breaks down, can train traction be implemented to passenger evacuation and rescue to nearest station by hawser.
The present invention is the compact car system from heavy and light, little marshalling, short departure interval, and with safety, quick passenger-carrying, dead weight of vehicle is lighter, and passenger capacity is larger, and degree of utilization and energy-saving effect are better.
Feature of the present invention can be consulted the detailed description of the graphic and following better embodiment of this case and be obtained and be well understood to.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is train traction, braking and the driving system that station, ground of the present invention is arranged.
Fig. 3 is energy-conservation slope of the present invention scheme circuit.
Fig. 4 is the energy-conservation slope scheme circuit of simulation case of the present invention.
Fig. 5 is the train operation distance-velocity curve of simulation case of the present invention.
Fig. 6 is the Train Schedule-velocity curve of simulation case of the present invention.
Fig. 7 is the train operation distance-Jia/projectile deceleration history of simulation case of the present invention.
Each flywheel energy consumption varies figure when Fig. 8 is the train traction of simulation case of the present invention.
Each flywheel energy compensating figure when Fig. 9 is the train regenerative brake of simulation case of the present invention.
Figure 10 is that the motor of simulation case of the present invention is given each flywheel makeup energy figure.
Figure 11 is the train operation distance-traction/B.P. diagram of curves of simulation case of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.
Referring to Fig. 1 and 2, a kind of City Rail Transit System, comprises train body 100, and traction wearing plate 101 is set in train body 100 both sides.At station, ground, arrange train traction brake actuating system 200, train traction brake actuating system 200 comprises drive motor 203, regulating mechanism 201, traction wheel 202, flywheel 204, and flywheel 204 plays energy storage effect, and flywheel 204 is connected with regulating mechanism 201; It is upper that drive motor 203 is arranged on a pusher (in figure do not indicate), by this pusher, controlled between drive motor and flywheel and is connected or departs from, drive motor 203 and flywheel 204 disengagings under normal circumstances.Regulating mechanism 201 is in transmission connection with traction wheel 202, and traction wheel is corresponding with the traction wearing plate of train body.
Traction wheel 202 comprises two groups, is arranged in train body 100 both sides; Every group of traction wheels comprise again along train length's direction arranges several traction wheels of laying.Train traction brake actuating system also comprises a control traction wheel laminating or departs from the pendulous device (not indicating in figure) of described traction wearing plate, so that control needed traction wheel number laminating or depart from traction wearing plate.
In addition, at station, ground, arrange for weighing the weight of train so that calculate the train weighing system of resistance.City Rail Transit System also comprises a control system, and train weighing system, motor are all connected with this control system; In train traction brake actuating system, be provided with to measure speed sensor, this speed sensor is connected with control system.
Referring to Fig. 3, between adjacent station, adopt steep gradient circuit, be divided into descending 302, flat slope 303 and 304 3 sections that go up a slope, two ends, ramp are connected with platform 301, flat slope section 303, and make energy-conservation ramp as far as possible near station, to bring into play maximum energy-saving effect.The circuit at station, adjacent two ground is arranged to spill, and station, ground is arranged on ground, and circuit is arranged on underground, and Ground Vehicle erect-position is in the high point of circuit.Platform length can be according to the length setting of operation train.
Principle of work of the present invention is: drive motor 203 and flywheel 204 are sources of system haulage capacity, as required energy are passed to traction wheel 202 by regulating mechanism.Generally, preferentially use flywheel 204 to drive.During traction, according to the size of train body 100 required tractive forces, control system is controlled the traction wheel of some and 101 laminatings of the traction wearing plate of train body both sides, the friction force that interacts and produce by traction wheel 202 and traction wearing plate 101, the energy of flywheel 204 and tractive force are passed to train, and drive train to advance; When train enters the station, according to the required braking force size of train braking, control traction wheel and the laminating of traction wearing plate of some, the speed of train is delivered to traction wheel, and passes to flywheel by regulating mechanism, carry out energy recovery and storage.Consumption along with train operation energy, the energy that each flywheel stores also can decline, by control system, the rotating speed of flywheel is monitored, as flywheel stored energy is less than the threshold values of setting, can be by drive motor 203 flywheel driven 204 rotations, flywheel energy storage is supplemented, and drive motor 203 and flywheel 204 depart under normal circumstances.Train, at circuit section operation, is realized auxiliary traction (descending) and auxiliary braking (upward slope) by circuit.Compare with existing Rail Transit System, train-installed traction, braking, ancillary system etc. can be cancelled, and train only retains the equipment such as storage battery or super capacitor to illumination, air-conditioning and calibration package power supply.Train composition design is simplified greatly, and train deadweight significantly reduces, and train fault point reduces, and train reliability has a distinct increment.
City Rail Transit System also comprise in order to by train traction to the cable system 103 at nearest station, cable system comprises and is arranged on ground hawser and is arranged on the connecting element in order to connection cable on train body.When vehicle breaks down, can train traction be implemented to passenger evacuation and rescue to nearest station by hawser.
Be provided with in orbit electromagnetic rail brake device 102, for emergency braking.
Every kinematics parameters in train travelling process can be tried to achieve according to each traction computing formula constantly, as:
M(1+γ)a＝F-W-G-R
In formula: a is train acceleration/accel; F is tractive force of train, and W is train running resistance, and Wq is launch train resistance, and G is gradient resistance, and R is curve resistance, and γ is train rotary mass coefficient, is generally taken as 0.1.
According to Vehicular behavior, there are traction, coasting, three kinds of operating conditions of braking.Operating mode is different, acts on the also difference of making a concerted effort on train.
(1) during running under power, tractive force and train running resistance act on train simultaneously, and the acceleration/accel of train operation is
(2) when coasting moves, only have running resistance to act on train, the acceleration/accel of train operation is
(3) during running under braking, braking force F
bact on train with resistance, the acceleration/accel of train operation is simultaneously
As shown in Table 2, the initial condition energy of flywheel (32) is: E
1i=1/2*I* ω
1i 2(i=1 wherein, 2 ... 32 is flywheel/rubber wheel pointer).During traction, by drive speed-adjusting mechanism, the energy of flywheel is passed to traction rubber wheel and drive train operation, the interactional friction working of rubber wheel and train is Ef=∑ F
i* S
i; In train operation, each rubber wheel acting varies in size, so the energy of flywheel consumes also difference of size, flywheel dump energy E
2i=E
1i-E
fi.
After train traction departures, centre portion coasting, train resistance (comprising train running resistance W, gradient resistance G, curve resistance R) acting, wherein gradient resistance is done positive work train is accelerated during descending, and during upward slope, gradient resistance is done negative work and is made train deceleration.Resistance acting E
r=∑ R
j* S
j(wherein j=1～4 are vehicle number);
When train braking enters the station, the interactional friction working of rubber wheel and train is Efb=∑ Fbi*Sbi, and these energy transmit to flywheel by drive speed-adjusting mechanism, by flywheel, carry out energy recovery.Suppose that flywheel dump energy is identical with last station energy, after energy recovery, the dump energy of each flywheel is E3i=E2i+Efbi.
Through this process, according to principle of conservation of energy, the energy that each flywheel stores can decline, and E3i≤E1i, now needs to rotate by driven by motor flywheel, and to fly wheel system, energy storage supplements, and supplementary energy is Esi=Eli-E3i.
Wherein: the zero energy that E1i is each flywheel; I is the rotor inertia of flywheel; ω 1i is the initial speed of each flywheel; Ef is traction rubber wheel friction working; Fi is each rubber wheel frictional traction; Si is that each rubber wheel contacts mobile distance with train; E2i is the remaining energy of each flywheel; Rj is each vehicle drag; Sj is the distance of each vehicle mobile; Efb is braking rubber wheel friction working; Fbi is each rubber wheel friction brake force; Sbi is that each rubber wheel contacts mobile distance with train; E3i is the remaining energy of each flywheel after energy reclaims; Esi for each flywheel need to be supplementary energy;
Set the travelling speed that the complete interval of train operation will reach, as 35 kilometers/hour (dwell time is made as 25 seconds), when patronage changes, system can be according to vehicle load and circuit situation, required speed when calculating train and arriving at the bottom of slope, thus by adjusting the rubber wheel of rubber wheel frictional traction size or configuration respective numbers, realize required traction and braking.
In the present invention, the joint number of train body is 1-4 joint.During the present invention is especially applicable, small city or cities and towns, in, in small city or cities and towns, the intensity of passenger flow is little, and the distance between adjacent two platforms neither be too far away, if 0.8 km to 3 km is within the scope of this.
Simulation case is analyzed
In conjunction with the explanation of the invention described above principle of work, for effect of the present invention is easy to understand, below in conjunction with concrete simulation case analysis, further set forth the present invention.
Suppose one section of interval circuit, two station spacing are 1200m, and interval circuit (containing platform) total length is 1300m, and circuit principal data is shown in Fig. 4 and following table 1.
Table 1 railroad section data
Emulation train is formed by four joint vehicle marshallings, approximately 24.8 tons of every joint dead weight of vehicles (than 7～9 tons of conventional C type railcar losss of weight), and the carrying of AW2 operating mode weighs 13.1 tons, and the carrying of AW3 operating mode weighs 18.4 tons.
New type train traction, brake actuating system are arranged in region, station, ground in train both sides every 5 meters, along every limit, vehicle commander region, 16 covers are set, totally 32 covers.Driving system and vehicle parameter that simulation calculation adopts are as shown in table 2.
Table 2 Novel transmission system data
| Project | Numerical value | Project | Numerical value |
| Flywheel quantity | 32 | Traction rubber wheel quantity | 32 |
| Rotary Inertia of Flywheel | 1160kg·m 2 | Traction rubber wheel diameter | 0.5m |
| Flywheel initial speed | 360 revs/min | Traction rubber wheel interval | 5m |
| Flywheel/rubber wheel transmitting ratio | Variable | Single traction rubber wheel tractive force | 7KN |
Set the travelling speed that the complete interval of train operation will reach, as 35 kilometers/hour (dwell time is made as 25 seconds), required speed when system can calculate train and arrives at the bottom of slope according to vehicle load and circuit situation, thus the rubber wheel of configuration respective numbers participates in traction or braking.
The result of calculation that 4 joint AW2 load marshalings design section operation at Fig. 4 is as shown in Fig. 5～8.Fig. 5 and Fig. 6 are speed-distance, the Velocity-time characteristic curve of the complete full journey of train operation, as seen from the figure, after train departures, under flywheel/rubber wheel tractive force and the effect of energy-conservation slope, speed constantly increases, and maximum speed is about 80 kilometers/hour, declines gradually afterwards in coasting section and the section speed of going up a slope, last stopping-down, the 100 seconds time of the complete full journey of train operation.Fig. 7 is the add/deceleration/decel-distance Curve of train operation, visible, and train is maximum at the acceleration/accel that starts the traction stage, and the deceleration/decel when stopping-down is maximum.
The characteristic curve of each flywheel when Fig. 8 is train traction.As shown in Figure 8, during train traction, the energy of flywheel contacts outwards output tractive force and does work with train by rubber wheel, and the energy of flywheel is decayed gradually, and the time of No. 1 flywheel action is the longest, and energy consumes maximum, and the dump energy after consumption is minimum; The shortest time of No. 16 flywheel actions, energy consumes minimum, and the dump energy after consumption is maximum, and other flywheels are between between the two.
The characteristic curve of each flywheel when Fig. 9 is train braking.As shown in Figure 9, during train braking, the kinetic energy of train passes to flywheel by rubber wheel, and the energy of flywheel is compensated.No. 8 flywheel stopping distance is the longest, and energy lift is maximum, No. 2 flywheel minimums, and No. 1 flywheel present position is terminal, has neither part nor lot in braking.
After Figure 10 is the complete full journey of train operation, motor carries out energy supplement figure according to flywheel expended energy size to flywheel.As seen from the figure, the energy that flywheel 1 consumes is maximum, needs supplementary energy also maximum.Flywheel 2～8 is when braking, and the energy of regenerative brake feedback compensates it, and therefore supplementary energy has carried out reduction.9-16 flywheel does not absorb the energy of braking feedback, needs supplementary energy a little more than No. 8 flywheels above.
After Figure 11 is the complete full journey of train operation, the tractive output of train and B.P. figure.As seen from the figure, tractive output is greater than B.P..Traction acting power consumption is 3.17 degree electricity, and braking is compensated for as 0.64 degree electricity, as considered, braking power consumption can fully be recycled, and actual power consumption is 2.53 degree, is approximately 1/4～1/5 of existing system energy consumption, energy-saving effect highly significant.
More than show and described groundwork of the present invention, principal character and advantage of the present invention.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; what in above-described embodiment and specification sheets, describe is principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain that the present invention requires is defined by appending claims and equivalent thereof.
Claims (12)
1. a City Rail Transit System, is characterized in that, comprises train body, in train body both sides, traction wearing plate is set; At station, ground, arrange train traction brake actuating system, described train traction brake actuating system comprises drive motor, flywheel, regulating mechanism, traction wheel, described drive motor and flywheel are in transmission connection by regulating mechanism and traction wheel, and described traction wheel is corresponding with the traction wearing plate of train body.
2. City Rail Transit System according to claim 1, it is characterized in that, the drive motor of described train traction brake actuating system is arranged on a pusher, by this pusher, control between drive motor and flywheel and is connected or departs from, drive motor and flywheel disengaging under normal circumstances.
3. City Rail Transit System according to claim 1, is characterized in that, described train traction brake actuating system also comprises a control traction wheel laminating or departs from the pendulous device of described traction wearing plate.
4. City Rail Transit System according to claim 3, is characterized in that, described traction wheel comprises two groups, is arranged in train body both sides; Every group of traction wheels comprise again along train length's direction arranges several traction wheels of laying.
5. City Rail Transit System according to claim 1, is characterized in that, described traction wheel is rubber wheel.
6. City Rail Transit System according to claim 1, it is characterized in that, described City Rail Transit System also comprise in order to by train traction to the cable system at nearest station, described cable system comprises and is arranged on ground hawser and is arranged on the connecting element in order to connection cable on train body.
7. City Rail Transit System according to claim 1, is characterized in that, is provided with in orbit electromagnetic rail brake device.
8. City Rail Transit System according to claim 1, is characterized in that, arranges for weighing the weight of train so that calculate the train weighing system of resistance at station, ground.
9. City Rail Transit System according to claim 8, is characterized in that, described City Rail Transit System also comprises a set of control system, and described train weighing system, motor are all connected with this control system; In described train traction brake actuating system, be provided with to measure speed sensor, this speed sensor is connected with control system.
10. City Rail Transit System according to claim 1, is characterized in that, adjacent two ground adopts steep gradient circuit between station, and one or more in descending, flat slope and three sections of upward slope combines.
11. City Rail Transit Systems according to claim 1, is characterized in that, the circuit at station, adjacent two ground is arranged to spill, and station, ground is arranged on ground, and circuit is arranged on underground, and Ground Vehicle erect-position is in the high point of circuit.
12. City Rail Transit Systems according to claim 1, is characterized in that, the joint number of train body is 1-4 joint.
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|---|---|---|---|
| CN201410417665.2A CN104163175A (en) | 2014-08-22 | 2014-08-22 | Urban railway traffic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410417665.2A CN104163175A (en) | 2014-08-22 | 2014-08-22 | Urban railway traffic system |
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|---|---|
| CN104163175A true CN104163175A (en) | 2014-11-26 |
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| CN201410417665.2A Pending CN104163175A (en) | 2014-08-22 | 2014-08-22 | Urban railway traffic system |
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| CN105523046A (en) * | 2016-01-28 | 2016-04-27 | 张晓华 | Closed type traffic and transportation system |
| CN106114523A (en) * | 2016-08-31 | 2016-11-16 | 刘健华 | Hanging type passage of train system |
| CN107415982A (en) * | 2017-05-22 | 2017-12-01 | 广东飞铁交通有限公司 | The traction method and device of a kind of rail vehicle |
| CN109131451A (en) * | 2018-07-27 | 2019-01-04 | 同济大学 | The quick simultaneously saving-energy operation control method of bullet train without coasting operating condition |
| CN112918520A (en) * | 2021-03-23 | 2021-06-08 | 北京和利时系统工程有限公司 | Energy-saving operation control method for high-speed railway train |
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| CN109131451A (en) * | 2018-07-27 | 2019-01-04 | 同济大学 | The quick simultaneously saving-energy operation control method of bullet train without coasting operating condition |
| CN112918520A (en) * | 2021-03-23 | 2021-06-08 | 北京和利时系统工程有限公司 | Energy-saving operation control method for high-speed railway train |
| CN112918520B (en) * | 2021-03-23 | 2022-08-05 | 北京和利时系统工程有限公司 | Energy-saving operation control method for high-speed railway train |
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Application publication date: 20141126 |