CN2630820Y - Vehicle eddy-curvent brake experiment device - Google Patents
Vehicle eddy-curvent brake experiment device Download PDFInfo
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- CN2630820Y CN2630820Y CN 03232327 CN03232327U CN2630820Y CN 2630820 Y CN2630820 Y CN 2630820Y CN 03232327 CN03232327 CN 03232327 CN 03232327 U CN03232327 U CN 03232327U CN 2630820 Y CN2630820 Y CN 2630820Y
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- wheel
- power supply
- output
- current brake
- magnetic pole
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Abstract
The utility model relates to a safety control technique of a maglev train and a wheel/rail system high speed train, concretely relates to an eddy current brake test device of the high-speed track transportation system. The utility model includes a base, a rotating orbit, an electromagnetic device, an excitation power supply, a vehicle power simulation device, a computer measure and control device, a driven device etc. When the rotating orbit rotates at high speed and by the function of the excitation power supply, a measuring sensor with multipoint distribution detects the interaction state of the eddy current brake and the electromagnetic attraction, and the interaction state of the eddy current brake is acquired. The utility model has perfect function, the work process and state is simulated and verified, and the work process of each functional part of the eddy current brake is verified, by which the characteristic verification is realized.
Description
Technical field
The utility model belongs to the mechanical ﹠ electrical technology field, is specifically related to the eddy-current brake experimental provision of a kind of high-speed rail transportation system.
Background technology
Along with the development of (comprising maglev system and wheel track High Speed System) of city high-speed rail transportation system, safety control technology is one of the technology that at first must consider and solve.
What travelled on first the commercial off-the-shelf magnetic levitation in the whole world circuit that introduce in Shanghai at present is the TR08 high-speed maglev train of German import.The key component of the safety control that this car loaded is the eddy-current brake device.
How to verify the validity of eddy-current brake know-why, the feasibility of checking eddy-current brake equipment manufacturing technology, availability, the reliability of checking mobile unit, and verify that the availability of vehicle-mounted detection control system and reliability, the availability of vehicle-mounted field power supply and the feasibility of reliability, measuring technology and instrument etc. just become basic technology problem to be solved in the eddy-current brake device production domesticization process.
Prove according to new patent searching, the at present domestic eddy-current brake experimental system that only has a cover to be used to study the wheel rail system train, but the braked wheel diameter of this system is 1100mm, and maximum line velocity only is 250km/h, and maximum rotation inertia is 166kN.m.s
2, maximum braking force 4.66kN, the fixed installation of braking magnetic pole.External similarly eddy-current brake experimental system has the experiment of rotation platform of travelling speed greater than 300km/h, but its eddy-current brake magnetic pole is to adopt the fixed installation mode.They all can't simulate the distinctive operational mode of TR series magnetic suspension train eddy-current brake device.
Summary of the invention
The purpose of this utility model is to propose a kind of vehicle eddy-current brake experimental provision, so that can verify the eddy-current brake know-why, and can with the mode of operation compatibility of high-speed maglev train and High-speed Wheel train eddy-current brake device, can with the mode of operation compatibility of field power supply, accurately separation eddy damping force and electromagnetic attraction, accurately detect the course of work of eddy-current brake device.
The vehicle eddy-current brake experimental provision of the utility model design, be made up of mechanical system, vehicle power analogue means, controlled alternating current-direct current field power supply, A/C transmission control device, mechanism for testing, COMPUTER DETECTION and control system, its system architecture as shown in Figure 2.Wherein, the train of mechanism part is made up of mounting base, frequency-changing AC asynchronous machine, swing-around trajectory wheel apparatus (detecting of railway wheel), flying wheel device, magnetic pole fittable slackening device, elastic damper, magnetic attraction and eddy-current brake force transducer, speed probe and bindiny mechanism, and its structure as shown in Figure 1.Wherein, swing-around trajectory wheel (testing wheel) 6 is installed on the pedestal 1 by supporting construction 7, flying wheel 9 is installed on the pedestal 1 by supporting construction 10, inertia wheel shaft 11 is connected with track wheel shaft 8 by shaft coupling 12, braking magnetic pole 4 is arranged in the magnetic pole fittable slackening device 3, and the lateral margin of swing-around trajectory wheel 6 is arranged in the symmetrically arranged braking magnetic pole 4 in both sides.Asynchronous machine 2 is installed on the pedestal 1, and motor output shaft is connected with inertia wheel shaft 11 by belt.
In the utility model, braking magnetic pole 4 becomes fan-shaped distribution in bracing or strutting arrangement 3, and every side can be 4-8.Damping force (magnetic attraction) survey sensor 14 is fixing with pedestal 1 by erection support 13.The center of bracing or strutting arrangement 3 is supported on by transverse bearing on the axle sleeve of main shaft 8 of rail wheel (testing wheel) 6.See shown in Figure 3.Bracing or strutting arrangement 3 can be around the axle sleeve rotation of test wheel shaft 8.
In the utility model, electromagnetic mechanism Stroke Control and electromagnetic attraction measuring mechanism 15 are arranged at the correspondence position of braking magnetic pole 4, become fan-shaped distribution, see shown in Figure 4.This control survey mechanism 15 is connected to form successively by electromagnet core 16, electromagnet winding 17, yoke 18, electromagnetic attraction sensor 19, damping spring 21, Stroke Control baffle plate 22, and its structure is seen shown in Figure 5.
Wherein, the braking magnetic pole 4 of each side constitutes the unit with magnetic Yoke 18, and this unit is installed in the bracing or strutting arrangement 3 by spring bearing, the friction force when moving to reduce electromagnetic unit.Range controlling mechanism is installed and restriction sleeve 20 is parts of bracing or strutting arrangement 3.When in the electromagnetic unit exciting current being arranged, the elastic damping that the electromagnetic mechanism unit can overcome spring 21 is subjected to displacement, and the stroke size of this displacement can be regulated by Stroke Control baffle plate 22.
When carrying out the eddy-current brake experiment, eddy-current brake power can be carried out separating and measuring by tangent principle shown in Figure 6, and the size of electromagnetic attraction can be obtained by electromagnetic attraction sensor 19, and the size of the stroke of electromagnetic unit is obtained by adjustment stroke control baffle plate 22 between experiment.
The utility model course of work is as follows:
When needs start experimental provision, transmission control device drives frequency-changing AC asynchronous machine 2, drive flying wheel 9, drive test tracks wheel 6 by shaft coupling 12, when testing wheel reaches the rotating speed of regulation, the output of excision transmission control device, start the alternating current-direct current field power supply then and provide excitation to electromagnetic unit, because the high speed relative motion between the tablet on field power supply effect and electromagnetic unit and the testing wheel produces eddy-current brake power on the one hand, produces electromagnetic attraction simultaneously.Eddy-current brake power produces braking action to testing wheel 6 and flying wheel 9, and the size of its damping force is handled by computer recording by eddy-current brake power separating and measuring sensor 14.The elastic damping that electromagnetic attraction then makes electromagnetic unit (when electromagnetic attraction is enough big) overcome spring is subjected to displacement.The size of electromagnetic attraction is handled by computer recording by electromagnetic attraction sensor 19.In whole experiment, the speed of computing machine while track record wheel, size and frequency (when excitation is output as AC excitation), damping force and the electromagnetic attraction etc. of exciting current.
Computing machine is at first with the output zero clearing of all sensors before experiment.After experiment finished, computing machine carried out data base administration, the processing of various required Synchronization Analysis with all recorded informations, comprises figure and report display printing etc.
Technical characterstic of the present utility model is: with rotation mode simulation rectilinear motion, with the formed relative motion mechanism of orbital motion replacement vehicle movement, with big inertia simulation vehicle operating, the maximum line velocity operation with 350km/h, big eddy-current brake power, big magnetic attraction, the braking magnetic pole produces the shift simulation train according to the magnetic attraction size safety braking operating mode.
Magnetic pole is taked the side arrangement mode, is arranged in the both sides of test tracks wheel.The purpose of Bu Zhiing is like this: on the one hand with the structural similarity of magnetic suspension train, because the eddy-current brake magnetic pole of magnetic suspension train also is the both sides that are arranged in the train bottom, when braking action took place, magnetic pole moves respectively to the inside to be held guided way tightly and rubs; On the other hand, can simulate when braking action produces, the gap that causes because of magnetic attraction between eddy-current brake magnetic pole and the guided way changes.
The utility model is by the modular construction of parts, to realize versatility, convertibility.Can be used to verify the validity of eddy-current brake know-why, the feasibility of checking eddy-current brake equipment manufacturing technology, availability, the reliability of checking mobile unit, and availability and reliability, the availability of vehicle-mounted field power supply and the feasibility of reliability, measuring technology and instrument etc. of verifying vehicle-mounted detection control system.
Description of drawings
Fig. 1 is a structure drawing of device.
Fig. 2 is the device composition frame chart.
Fig. 3 is electromagnetic structure and supporting construction graph of a relation.
Fig. 4 is the force measurement graph of a relation.
Fig. 5 is the motion and the instrumentation plan of electromagnetic structure.
Fig. 6 measures separation principle figure for damping force.
Number in the figure:
1 is the pedestal of physical construction; 2 is the frequency-changing AC asynchronous machine; 3 is the magnetic pole fittable slackening device; 4 are the braking magnetic pole; 5 is bearing (ball) cover; 6 are swing-around trajectory wheel (claiming testing wheel again); 7 are swing-around trajectory wheel supporting construction; 8 is the track wheel shaft; 9 is flying wheel; 10 is the flying wheel supporting construction; 11 is the inertia wheel shaft, and 12 is shaft coupling; 13 is damping force sensor erection support; 14 is the damping force survey sensor; 15 is electromagnetic mechanism Stroke Control and electromagnetic attraction measuring mechanism; 16 is electromagnet core; 17 is the electromagnet winding; 18 is magnetic Yoke; 19 is the electromagnetic attraction sensor; 20 are range controlling mechanism installation and restriction sleeve; 21 is spring; 22 is the Stroke Control baffle plate; 23 is spring pretightening mechanism and installation end cap.
Embodiment
Further describe the utility model below by embodiment.
Among the embodiment, the diameter of detecting of railway wheel is 1380mm, and thickness is 200mm; The diameter of flying wheel is 1215mm, and thickness is 150mm.Rotating speed is about 1470 rev/mins, and the border line speed of rail wheel test is 350km/h.The rail wheel test is made up of wheel body and tablet (the guided way analog board on the magnetic levitation circuit).12 magnetic poles, 12 damping springs, 10 magnetic attraction sensors are installed on the magnetic pole fittable slackening device 3.Also have four damping force sensors in addition.
Maximum rotation inertia: ∑ J
Actual=J
Rail wheel+ 2J
Flying wheel+ J
Zero=934.34Nms
2Long 190 * high by the 250 * thick 90mm of pole core size; The magnet winding is 350 circles, and ampere turns is 110 * 350 * 2 * 6.Each electromagnet physical dimension: 260mm * 204mm; Iron core is 90 * 150 mm.The every side of maximum perpendicular magnetic attraction is greater than 25kN, and the every side of maximum braking force is greater than 4.5kN when 300km/h.The input power supply of device is 380 volts of 50Hz of 3 phases.The phase control rectifier power supply is output as direct current 440V, maximum output current 500A.The direct current of separate unit field power supply is output as 120A, maximum output 150A; The interchange of separate unit field power supply is output as 120A, and maximum is output as 150A, and frequency is 2 ~ 10Hz; Separate unit field power supply capacity is not less than 50kW, totally four.4 exciting currents are that DC excitation output and the controlled at any time switching of AC excitation output, output current amplitude and frequency are controlled.
(1) replaces the formed relative motion mechanism of vehicle movement (referring to Fig. 2) with the rotation mode simulation rectilinear motion of the rail wheel 6 of 1380mm diameter with orbital motion, with 960.35kN.m.s
2Large rotating inertia simulating vehicle operation, reach the maximum line velocity operation of 350km/h, maximum eddy-current brake power reaches 9.0kN, one-sided maximum magnetic flux suction is 25kN.Be applied in the eddy-current brake technical research of magnetic suspension train, and be unique at home with the formed experimental system scale of this version.
(2) 12 magnetic poles 4 are arranged in rail wheel 6 both sides, connect realization braking magnetic pole produces the shift simulation train according to the magnetic attraction size safety braking operating mode in conjunction with spring damping 21, the arrangement of eddy-current brake magnetic pole is referring to the module 4 (this is one of them) of Fig. 3, the position of spring and magnetic pole is referring to the module 15 of Fig. 4, and the connected mode of spring and magnetic pole is referring to Fig. 5.
(3) measuring isolation technics with the special eddy-current brake power of the design of the tangent principle in the circular configuration, is one of technical characterstic of native system.Damping force is measured separation principle referring to Fig. 5, and the layout of the survey sensor of damping force is referring to Fig. 4 central structure.
Specific implementation process:
Build the reinforced concrete plinth of a dark 2m with the post forming method, the cast iron pedestal 1 of the mechanical hook-up screw by 12 φ 36 long 1m is fixed on the reinforced concrete plinth; Flying wheel 9 is installed on the pedestal 1 by high-speed bearing and pedestal 10; Testing wheel 6 is installed on the pedestal 1 by high-speed bearing and pedestal 7; Inertia wheel shaft 11 is connected with test wheel shaft 8 by shaft coupling 12; Alternating current generator 2 is connected with flying wheel by belt.
The braking magnetic pole and the magnetic Yoke of each side constitute the unit by steel construction, this unit (synoptic diagram is referring to Fig. 5) is installed in the inside of the bracing or strutting arrangement 3 of sector structure by spring bearing, the effect of spring bearing is the friction force when reducing the electromagnetic unit motion, and wherein range controlling mechanism installation and restriction sleeve are the parts of sector structure 3.The center of sector structure 3 is supported on by transverse bearing on the axle sleeve of main shaft 8 of testing wheel 6.
Sector structure can be around the axle sleeve rotation of test wheel shaft 9 in the utility model.When in the electromagnetic unit exciting current being arranged, the elastic damping that the electromagnetic mechanism unit can overcome spring 21 is subjected to displacement, and the stroke size of this displacement can be regulated by Stroke Control baffle plate 22.
The structure of the composition of electric device and detection control signal is referring to Fig. 2.
Claims (5)
1. vehicle eddy-current brake experimental provision, by mechanical system, the vehicle power analogue means, controlled alternating current-direct current field power supply, the A/C transmission control device, mechanism for testing, COMPUTER DETECTION and control system are formed, it is characterized in that the train of mechanism part is by mounting base, the frequency-changing AC asynchronous machine, the swing-around trajectory wheel apparatus, the flying wheel device, the magnetic pole fittable slackening device, elastic damper, magnetic attraction and eddy-current brake force transducer, speed probe and bindiny mechanism form, swing-around trajectory wheel (6) is installed on the pedestal (1) by supporting construction (7), flying wheel (9) is installed on the pedestal (1) by supporting construction (10), inertia wheel shaft (11) is connected with track wheel shaft (8) by shaft coupling (12), braking magnetic pole (4) is arranged in the magnetic pole fittable slackening device (3), and the lateral margin of swing-around trajectory wheel (6) is arranged in the symmetrically arranged braking magnetic poles in both sides (4).
2. experimental provision according to claim 1 is characterized in that braking magnetic pole (4) and become fan-shaped distribution in bracing or strutting arrangement (3), and every side is 4-8.
3. experimental provision according to claim 1, the center that it is characterized in that bracing or strutting arrangement (3) are supported on by transverse bearing on the axle sleeve of main shaft (8) of testing wheel (6).
4. experimental provision according to claim 1, it is characterized in that electromagnetic mechanism Stroke Control and electromagnetic attraction measuring mechanism (15) are arranged at the correspondence position of braking magnetic pole (14), become fan-shaped distribution, this control survey mechanism (15) is connected to form successively by electromagnet core (16), electromagnet winding (17), yoke (18), electromagnetic attraction sensor (19), damping spring (21), Stroke Control baffle plate (22).
5. experimental provision according to claim 1, the input power supply that it is characterized in that device are 380 volts of 50Hz of 3 phases; The phase control rectifier power supply is output as direct current 440V, maximum output current 500A; Four field power supplies are that DC excitation output and the controlled at any time switching of AC excitation, output current amplitude and frequency are controlled; The separate unit field power supply, its direct current is output as 120A, maximum output 150A, its interchange is output as 120A, and maximum is output as 150A, and frequency is 2 ~ 10Hz, and power supply capacity is not less than 50kW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232327 CN2630820Y (en) | 2003-06-19 | 2003-06-19 | Vehicle eddy-curvent brake experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232327 CN2630820Y (en) | 2003-06-19 | 2003-06-19 | Vehicle eddy-curvent brake experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2630820Y true CN2630820Y (en) | 2004-08-04 |
Family
ID=34291417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03232327 Expired - Fee Related CN2630820Y (en) | 2003-06-19 | 2003-06-19 | Vehicle eddy-curvent brake experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2630820Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395131C (en) * | 2003-06-19 | 2008-06-18 | 同济大学 | Vehicle eddy current brake experiment unit |
| CN100458221C (en) * | 2005-12-21 | 2009-02-04 | 比亚迪股份有限公司 | High speed driving mechanism |
| CN102032993A (en) * | 2010-11-11 | 2011-04-27 | 西南交通大学 | High-speed train wheel track contact stress test bench |
| CN110542568A (en) * | 2019-09-20 | 2019-12-06 | 西南交通大学 | Rail eddy current braking performance testing device and testing method thereof |
-
2003
- 2003-06-19 CN CN 03232327 patent/CN2630820Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395131C (en) * | 2003-06-19 | 2008-06-18 | 同济大学 | Vehicle eddy current brake experiment unit |
| CN100458221C (en) * | 2005-12-21 | 2009-02-04 | 比亚迪股份有限公司 | High speed driving mechanism |
| CN102032993A (en) * | 2010-11-11 | 2011-04-27 | 西南交通大学 | High-speed train wheel track contact stress test bench |
| CN102032993B (en) * | 2010-11-11 | 2012-03-21 | 西南交通大学 | High-speed train wheel track contact stress test bench |
| CN110542568A (en) * | 2019-09-20 | 2019-12-06 | 西南交通大学 | Rail eddy current braking performance testing device and testing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |