CN101201294A - Synchronization controller for wheel pair speed of engine static-state test platform - Google Patents

Synchronization controller for wheel pair speed of engine static-state test platform Download PDF

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Publication number
CN101201294A
CN101201294A CNA2007101799952A CN200710179995A CN101201294A CN 101201294 A CN101201294 A CN 101201294A CN A2007101799952 A CNA2007101799952 A CN A2007101799952A CN 200710179995 A CN200710179995 A CN 200710179995A CN 101201294 A CN101201294 A CN 101201294A
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speed
test platform
engine static
wheel
state test
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CN100545619C (en
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韩为民
朱善君
钱利民
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Beijing Erqi Railway Transportation Equipment Co Ltd
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Beijing Erqi Railway Transportation Equipment Co Ltd
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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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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Abstract

The invention relates to a synchronization control device for wheel pair speed of a locomotive fixation test bed, and is characterized in that the invention comprises six pairs of axles arranged oppositely, and a synchronization control system. Each three pairs are connected into a mechanical synchronizing system. Each of the mechanical synchronizing systems is connected with a transmission system. The two transmission systems are connected with a dynamometer, respectively. The two dynamometers are connected with a load, respectively. The synchronization control system comprises a master governor, a secondary controller, two excitation controllers and two exciter circuits, which are connected in turn. The exciter circuits are connected with the two dynamometers, respectively. The invention can regulate the velocity control and synchronization control of the wheel pairs automatically in the locomotive fixation test, and has the characteristics of excellent following feature and small errors.

Description

A kind of engine static-state test platform wheel is to the speed synchronization control device
Technical field
The present invention relates to the locomotive test device, be meant that especially each wheel of control locomotive is taken turns the speed synchronization control device the engine static-state test platform of speed in a kind of pulling test device.
Background technology
China railways continuous large-scale speed-raising at present, the raising of train running speed is had higher requirement to the security and the reliability of locomotive operation, and trunk railway is busy day by day simultaneously, and the possibility of test run locomotive is also more and more littler on the line.Therefore, make up the locomotive that is applicable to the different structure characteristics, the engine static-state test platform that can carry out starting characteristics test, pulling test, brake test etc. is very necessary.Locomotive is respectively taken turns right speed control and speed synchronization control in engine static-state test platform, is that locomotive carries out the smooth assurance of various pulling tests on loacting test rack.
At present, each wheel of control is to the device of synchronous rotation automatically in locomotive traction test, and each takes turns resistance to axletree can only to rely on manual shift, come regulating wheel right synchronously.It is poor that manual shift exists followability, and error is big, and degree of regulation is weak, and error can only be controlled in 3%, can not satisfy production requirement.
Summary of the invention
At the problems referred to above, the object of the present invention is to provide a kind of engine static-state test platform wheel to the speed synchronization control device, it can be regulated automatically in the engine static-state test and respectively take turns right speed control and speed synchronization control, and it is good to have followability, the characteristics that error is little.
For achieving the above object, the present invention takes following technical scheme: a kind of engine static-state test platform wheel is to the speed synchronization control device, it is characterized in that comprising: six pairs of wheel shafts that are oppositely arranged, per three pairs of described wheel shafts connect into a mechanical synchronization system, each described mechanical synchronization system connects a kinematic train respectively, two described kinematic trains connect a dynamometer machine respectively, and two described dynamometer machines connect a load respectively; One synchronous control system comprises the master selector, secondary controller, two excitation controllers and two field circuits that connect in regular turn, and each described field circuit connects two described dynamometer machines respectively.
Each described wheel shaft connects and composes described mechanical synchronization system by mechanical gear and universal shaft.
Described master selector is a microcomputer, wherein be provided with data acquisition module and control module, the service data of described dynamometer machine, water resistance tank is imported described master selector by described data acquisition module, and the steering order of described synchronous control system transfers to described excitation controller by described control module.
Described secondary controller is a Programmable Logic Controller, wherein be provided with data acquisition module and control module, described Programmable Logic Controller by data acquisition module to described master selector feedback excitation electric current, voltage data, and by described control module to described excitation controller transfer instruction, also be provided with the pid number regulator in the described secondary controller.
Described synchronous control system is speed ring, electric current loop, Voltage loop three ring control system.
The current feedback of described electric current loop is obtained by the sampling module of Hall current mutual inductor through described Programmable Logic Controller.
It is given that described electric current loop is provided with a steady current that is provided by described Programmable Logic Controller.
Described Voltage loop is obtained after described Programmable Logic Controller sampling by the Hall voltage mutual inductor.
The feedback data of described speed ring is obtained behind the high-speed counting unit sampling of described Programmable Logic Controller by photoelectric encoder, and the velocity setting value of described speed ring increases/subtracts button by the speed of the test monitoring software of host computer or master operating station and sends to Programmable Logic Controller.
Described load is a water resistance tank, and it connects an overvoltage crowbar.
The present invention is owing to take above technical scheme, it has the following advantages: 1, the present invention is owing to adopt voltage, electric current, speed three ring control system, make and be subjected to the test-run a machine car respectively to take turns right adjusted in concert to have the advantage that followability is good, degree of regulation is high, can be within 1 ‰ with error control, 3% error when being far superior to manual shift.2, the present invention is by being provided with the load water resistance tank, the various load situation when making the present invention on testing table, simulate locomotive operation, and locomotive is not used main line and just can be made a service test, and can obtain test figure accurately.3, the present invention has improved locomotive test efficient, and the function that makes performance of locomotive test more comprehensively.4, in process of the test, go wrong as locomotive, easy to maintenance.
Description of drawings
Fig. 1 is a loacting test rack synoptic diagram of the present invention
Fig. 2 is synchronization control circuit figure of the present invention
Fig. 3 is a synchronization control circuit block scheme of the present invention
Fig. 4 is a control flow chart of the present invention
Embodiment
Also the present invention is described in detail in conjunction with the accompanying drawings according to embodiments of the invention below.
As shown in Figure 1, the present invention includes six pairs of wheel shafts that are oppositely arranged 1, per three pairs of wheel shafts 1 connect into a mechanical synchronization system 2, and each mechanical synchronization system 2 connects a kinematic train 3 respectively, two kinematic trains 3 connect a dynamometer machine 4, two dynamometer machines 4 respectively and connect a load 5 more respectively.Synchronous control system 6 is connected with two loads 5 with two dynamometer machines 4, and connects the excitation controller 7 of control dynamometer machine 4 rotating speeds.
Each mechanical synchronization system 2 comprises three pairs of wheel shafts 1, the corresponding pair of tracks wheel of pair of axle spindles, and each wheel shaft 1 is connected with the universal shaft (not shown) by mechanical gear, constitutes mechanical synchronization system 2, makes three pairs of wheel shafts 1 can remain the speed unanimity.The technology that wheel shaft 1 connects and composes the mechanical synchronization system by mechanical gear and universal shaft is the common technology in the mechanical field, will not describe in detail at this.
Kinematic train 3 comprises a universal shaft, step-up gear and elastic connector, and kinematic train 3 couples together rail wheel and dynamometer machine 4, makes the two synchronous rotation.The structure that realizes this kind transmission has multiple, and this technology is the common technology of this area, will not describe in detail at this.
Each kinematic train 3 connects a dynamometer machine 4 respectively, each dynamometer machine 4 is connected with a field circuit 8 respectively, 6 of synchronous control systems connect excitation controller 7, can change the rotating speed of dynamometer machine 4 by the exciting current of excitation controller 7 change field circuits 8, also just can change the loading condition of locomotive, and then be subjected to the travelling speed of test-run a machine car on the control testing table.The rule of giving of exciting current is provided by the Programmable Logic Controller (PLC) of synchronous control system 6.Dynamometer machine 4 connects load 5, and in the present embodiment, load 5 is a water resistance tank 9.Be provided with in the water resistance tank 9 and contain resistance under water 10, it connects dynamometer machines 4 by A.C. contactor 11.The electric power that dynamometer machine 4 produces in the test is all consumed by water resistance tank 9.Load 5 also connects an overvoltage crowbar 51, with the security of warranty test process.
As Fig. 2, shown in Figure 3, synchronous control system 6 of the present invention comprises a master selector, a secondary controller that connects in regular turn, the output of secondary controller connects excitation controller 7, connects two field circuits 8 by excitation controller 7, and each field circuit 8 connects two dynamometer machines 4 more respectively.In the present embodiment, master selector is a main control microcomputer 12, wherein be provided with data acquisition module and control module, the service data of dynamometer machine 4, water resistance tank 9 is by in the data acquisition module input synchronous control system 6, synchronous control system 6 sends steering order according to resulting data and default test routine, and steering order transfers to excitation controller 7 by control module.Secondary controller is a slave computer 13, be a Programmable Logic Controller (PLC) in the present embodiment, wherein also be provided with data acquisition module and control module, slave computer 13 by data acquisition module to main control microcomputer 12 feedback excitation electric currents, voltage data, and by the instruction of control module to excitation controller 7 transmitting synchronous control system 6.
Synchronous control system 6 employing speed, electric current, voltage three ring control system, with speed ring as system's outer shroud, velocity feedback obtains and feeds back to master selector after by the high-speed counting unit sampling of speed pickup (photoelectric encoder) in the PLC acquisition module that is arranged on the dynamometer machine 4, speed ring has a velocity setting value as reference value, and its speed by the test monitoring software of host computer or control desk increases/subtracts button and sends to PLC.The regulating cycle of speed ring is made as 0.2S.Current closed-loop is as encircling in the system, and current feedback is obtained after the A/D of PLC sampling by the Hall current mutual inductor that is arranged in the field circuit, and the electric current loop regulating cycle is 0.05S.Electric current loop has a steady current given (the fixed excitation electric current is given), makes given poor of the output that is input as master selector (speed regulator) of electric current loop and steady current.Add the voltage cut-off ring in addition, the voltage cut-off feedback is obtained after the A/D of PLC sampling by the Hall voltage mutual inductor that is arranged on the dynamometer machine 4, and the maximal value of restriction dynamometer machine 4 output voltages is 380V, and the voltage cut-off ring works in 350V～380V scope.Be provided with the pid number regulator among the Programmable Logic Controller PLC, adopt simulated annealing to make dual system or the optimization of multisystem dynamic synchronization pid parameter, thereby reach electric synchro control each wheels.The simulated annealing that the pid number regulator adopts is the known technology in electrical control field, is not described in detail in this.
Synchronous control system 6 is shown various test figures by the display instrument dash board that is arranged on the control desk, control knob also is set on display station simultaneously, makes the operations in the test both can realize also can realizing with the input equipment (as mouse, keyboard) of main control microcomputer 12 with control knob.
The present invention changes the load of locomotive wheel by the size of regulating exciting current.Under the given situation of locomotive gear, increase exciting current, the generated energy of dynamometer machine 4 increases, and is equivalent to the suffered resistance of locomotive wheel and increases, and the rotating speed that drives the motor that locomotive wheel rotates descends; Reduce the exciting current of dynamometer machine, the generated energy of dynamometer machine 4 reduces, and is equivalent to the suffered resistance of locomotive wheel and reduces, and the rotating speed that drives the motor of locomotive wheel rotation just increases.
As shown in Figure 4, the course of work of the present invention is as follows:
Locomotive 14 to be tested speed according to the rules reaches the rail wheel 15 on the testing table, utilizes the hitch at testing table two ends that locomotive 14 is fixing, and adjusts locomotive wheel and align with rail wheel 15.At this moment, slave computer 13 beginning initialization after slave computer 13 is finished initialization, are provided with the rotating speed that is subjected to the test-run a machine car by host computer 12.
When locomotive wheel rotated, the rail wheel on the wheel motoring ring test platform rotated.After rail wheel rotates, drive two dynamometer machines 4 by two gear trains 3 and rotate, two dynamometer machines 4 send the electric power of certain power, and these electric power all consume by containing resistance under water 10.At this moment, the speed ring in the synchronous control system feeds back to master selector with the data of photoelectric encoder sampling by the high-speed counting unit in the PLC acquisition module, and whether the rotating speed that detects two dynamometer machines 4 equals to set rotating speed.If equal to set rotating speed, then by field circuit control dynamometer machine 4 output fixed voltages.If the two does not wait, then recalculate field circuit and be carried in exciting current on each dynamometer machine 4 by the pid number regulator of Programmable Logic Controller PLC, until the rotating speed of dynamometer machine 4 with to set rotating speed consistent, speed synchronization adjustment end.
From the above, the present invention is divided into two groups by two groups of mechanical synchronization systems with six pairs of wheels of locomotive, guarantees that three pairs of wheels in every group remain the speed unanimity.By synchronous control system, two groups of wheels all can be remained on set rotating speed running down, by regulating the output voltage that the dynamometer machine excitation is regulated dynamometer machine, promptly control its output power, thereby controlled the speed of locomotive, reached the synchronous operated requirement of dynamic control, and the good precision height of followability.

Claims (10)

1. an engine static-state test platform wheel is characterized in that comprising to the speed synchronization control device:
Six pairs of wheel shafts that are oppositely arranged, per three pairs of described wheel shafts connect into a mechanical synchronization system, and each described mechanical synchronization system connects a kinematic train respectively, and two described kinematic trains connect a dynamometer machine respectively, and two described dynamometer machines connect a load respectively;
One synchronous control system comprises the master selector, secondary controller, two excitation controllers and two field circuits that connect in regular turn, and each described field circuit connects two described dynamometer machines respectively.
2. a kind of engine static-state test platform wheel as claimed in claim 1 is characterized in that the speed synchronization control device: each described wheel shaft connects and composes described mechanical synchronization system by mechanical gear and universal shaft.
3. a kind of engine static-state test platform wheel as claimed in claim 1 is to the speed synchronization control device, it is characterized in that: described master selector is a microcomputer, wherein be provided with data acquisition module and control module, the service data of described dynamometer machine, load is imported described master selector by described data acquisition module, and the steering order of described synchronous control system transfers to described excitation controller by described control module.
4. a kind of engine static-state test platform wheel as claimed in claim 1 is to the speed synchronization control device, it is characterized in that: described secondary controller is a Programmable Logic Controller, wherein be provided with data acquisition module and control module, described Programmable Logic Controller by data acquisition module to described master selector feedback excitation electric current, voltage data, and by described control module to described excitation controller transfer instruction, also be provided with the pid number regulator in the described secondary controller.
5. a kind of engine static-state test platform wheel as claimed in claim 1 is characterized in that the speed synchronization control device: described synchronous control system is speed ring, electric current loop, Voltage loop three ring control system.
6. a kind of engine static-state test platform wheel as claimed in claim 5 is to the speed synchronization control device, and it is characterized in that: the current feedback of described electric current loop is obtained by the sampling module of Hall current mutual inductor through described Programmable Logic Controller.
7. a kind of engine static-state test platform wheel as claimed in claim 5 is to the speed synchronization control device, and it is characterized in that: it is given that described electric current loop is provided with a steady current that is provided by described Programmable Logic Controller.
8. a kind of engine static-state test platform wheel as claimed in claim 5 is characterized in that the speed synchronization control device: described Voltage loop is obtained after described Programmable Logic Controller sampling by the Hall voltage mutual inductor.
9. a kind of engine static-state test platform wheel as claimed in claim 5 is to the speed synchronization control device, it is characterized in that: the feedback data of described speed ring is obtained behind the high-speed counting unit sampling of described Programmable Logic Controller by photoelectric encoder, and the velocity setting value of described speed ring increases/subtracts button by the speed of the test monitoring software of host computer or master operating station and sends to Programmable Logic Controller.
10. a kind of engine static-state test platform wheel as claimed in claim 1 is to the speed synchronization control device, and it is characterized in that: described load is a water resistance tank, and it connects an overvoltage crowbar.
CNB2007101799952A 2007-12-20 2007-12-20 A kind of engine static-state test platform wheel is to the speed synchronization control device Expired - Fee Related CN100545619C (en)

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CNB2007101799952A CN100545619C (en) 2007-12-20 2007-12-20 A kind of engine static-state test platform wheel is to the speed synchronization control device

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Application Number Priority Date Filing Date Title
CNB2007101799952A CN100545619C (en) 2007-12-20 2007-12-20 A kind of engine static-state test platform wheel is to the speed synchronization control device

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102426107A (en) * 2011-11-16 2012-04-25 北京二七轨道交通装备有限责任公司 Synchronous stationary test bed
CN103630379A (en) * 2013-06-28 2014-03-12 南车青岛四方机车车辆股份有限公司 Device and method for testing mechanical resistance of trains
CN105094161A (en) * 2014-05-12 2015-11-25 中国北车集团大同电力机车有限责任公司 Locomotive speed simulation test apparatus and locomotive speed regulation method
CN107515128A (en) * 2017-09-30 2017-12-26 中车大连机车研究所有限公司 A kind of rail engineering automobile dynamic test system
CN113984409A (en) * 2021-10-29 2022-01-28 石家庄华燕交通科技有限公司 Vehicle detection speed synchronous following method, system, control device and storage medium

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102426107A (en) * 2011-11-16 2012-04-25 北京二七轨道交通装备有限责任公司 Synchronous stationary test bed
CN103630379A (en) * 2013-06-28 2014-03-12 南车青岛四方机车车辆股份有限公司 Device and method for testing mechanical resistance of trains
CN103630379B (en) * 2013-06-28 2016-05-25 中车青岛四方机车车辆股份有限公司 Testing arrangement and the method for a kind of train self mechanical resistance
CN105094161A (en) * 2014-05-12 2015-11-25 中国北车集团大同电力机车有限责任公司 Locomotive speed simulation test apparatus and locomotive speed regulation method
CN107515128A (en) * 2017-09-30 2017-12-26 中车大连机车研究所有限公司 A kind of rail engineering automobile dynamic test system
CN113984409A (en) * 2021-10-29 2022-01-28 石家庄华燕交通科技有限公司 Vehicle detection speed synchronous following method, system, control device and storage medium
CN113984409B (en) * 2021-10-29 2024-04-30 石家庄华燕交通科技有限公司 Method, system, control device and storage medium for synchronously following vehicle detection speed

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