CN102922965A - Railway tractor, as well as method, device and system for controlling same - Google Patents
Railway tractor, as well as method, device and system for controlling same Download PDFInfo
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- CN102922965A CN102922965A CN2012104790895A CN201210479089A CN102922965A CN 102922965 A CN102922965 A CN 102922965A CN 2012104790895 A CN2012104790895 A CN 2012104790895A CN 201210479089 A CN201210479089 A CN 201210479089A CN 102922965 A CN102922965 A CN 102922965A
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Abstract
The invention provides a railway tractor as well as a method, a device and a system for controlling the same. The method comprises the steps as follows: when the railway tractor runs on a track, the pressure in rodless cavities of telescopic oil cylinders of a front guide wheel and a rear guide wheel of the railway tractor is monitored; and the pressure of the front guide wheel and the rear guide wheel on the track is controlled through the monitored result to enable the pressure of the front guide wheel and the rear guide wheel on the track to be kept within a preset range. The pressure between the guide wheels and the track is controlled through monitored pressure in the rodless cavities of telescopic oil cylinders of the guide wheels to cause the pressure between the guide wheels and the track of the railway tractor to be kept within the reasonable range, so that the problem that when the railway tractor runs on the track, the pressure between the guide wheels and the track is too high or too low is solved, and the safety and the traction performance of the railway tractor are improved.
Description
Technical field
The present invention relates to the vehicle design field, more specifically, relate to a kind of rail traction car and control method, device and system.
Background technology
The rail traction car is the vehicle that tractive force is provided that can travel at rail, comprise combined tractor truck, the rail guidance system scheme drawing of rail traction car as shown in Figure 1, wherein, this system comprises front wheel guide device (being zone shown in the A circle among Fig. 1) and trailing wheel guide piece (being zone shown in the B circle among Fig. 1).The rail traction car is when railway travels, and the weight of car load is supported with tire by front and back guiding mechanism (being leading to device and rear guide piece), produces propulsive effort by the friction of tire when rail rolls, and guiding mechanism plays rail-guided effect.When railway travels, the front and back track adjusting wheel is combined between the rail, can guarantee that like this rail traction car travels at rail always, does not derail.When the pressure between track adjusting wheel and the rail is excessive, the supporting role meeting of guiding mechanism makes the pressure between tire and the rail too small, and the friction force when travelling between tire and the rail is too small, causes propulsive effort too small, the tractive force of rail traction car can not, lose the meaning of rail traction car like this; When the pressure between track adjusting wheel and the rail is too small, mainly be tire force, like this track adjusting wheel rail pressure can not, when traction mode is run at high speed, probably cause the track adjusting wheel derailing because of the elastic movement of guiding mechanism, and then make car load break away from rail.
When rail travels, can there be the excessive or too small problem of pressure between track adjusting wheel and rail for above-mentioned rail traction car, not yet proposes at present effectively solution.
Summary of the invention
Keep in the reasonable scope for the track adjusting wheel and the pressure between rail that make the rail traction car, the invention provides a kind of rail traction car and control method, device and system.
According to an aspect of the present invention, provide a kind of control method of rail traction car, having comprised: when the rail traction car when rail travels, the pressure in the rodless cavity of the front jockey wheel of monitoring rail traction car and the telescopic oil cylinder of rear track adjusting wheel; According to the output control front jockey wheel of monitoring and rear track adjusting wheel to the pressure of rail, so that the front jockey wheel of rail traction car and rear track adjusting wheel remain within the preset range the pressure of rail.
Wherein, pressure in the front jockey wheel of above-mentioned monitoring rail traction car and the rodless cavity of rear track adjusting wheel telescopic oil cylinder comprises: by being arranged on the leading pressure in the rodless cavity of telescopic oil cylinder of leading the first pressure sensor monitoring in the rodless cavity of telescopic oil cylinder of rail traction car, this pressure reflection front jockey wheel is to the pressure of rail; Pressure behind the second pressure sensor monitoring in the rodless cavity of the rear guide extension oil cylinder by being arranged on the rail traction car in the rodless cavity of guide extension oil cylinder, track adjusting wheel is to the pressure of rail after this pressure reflection.
Above-mentioned output control front jockey wheel according to monitoring comprises the pressure of rail: if monitor the force value of the first pressure sensor detection less than the minimum of the first preset range, improve front jockey wheel to the pressure of rail; If monitor the force value of the first pressure sensor detection greater than the peak of the first preset range, reduce front jockey wheel to the pressure of rail.
Above-mentioned raising front jockey wheel comprises the pressure of rail: the electromagnetic valve that connects of guide extension oil cylinder sends the control signal of injection liquid force feed in the rodless cavity forward, so that leadingly drive front jockey wheel to telescopic oil cylinder under the squeezing action of hydraulic oil and stretch out downwards; Above-mentioned reduction front jockey wheel comprises the pressure of rail: the electromagnetic valve that connects of guide extension oil cylinder sends the control signal of injection liquid force feed in the rod chamber forward, so that leadingly drives upwards retraction of front jockey wheel to telescopic oil cylinder under the squeezing action of hydraulic oil.
Track adjusting wheel comprises the pressure of rail behind the above-mentioned output control according to monitoring: if monitor the force value of the second pressure sensor detection less than the minimum of the second preset range, track adjusting wheel is to the pressure of rail after improving; If monitor the force value of the second pressure sensor detection greater than the peak of the second preset range, track adjusting wheel is to the pressure of rail after reducing.
Track adjusting wheel comprises the pressure of rail after the above-mentioned raising: the electromagnetic valve that connects of guide extension oil cylinder sends the control signal of injection liquid force feed in the rodless cavity backward, stretches out downwards so that rear guide extension oil cylinder drives afterwards track adjusting wheel under the squeezing action of hydraulic oil; Track adjusting wheel comprises the pressure of rail after the above-mentioned reduction: the electromagnetic valve that connects of guide extension oil cylinder sends the control signal of injection liquid force feed in the rod chamber backward so that rear guide extension oil cylinder under the squeezing action of hydraulic oil, drives after upwards retraction of track adjusting wheel.
Before the front jockey wheel of above-mentioned monitoring rail traction car and the pressure of rear track adjusting wheel to rail, said method also comprises: the actuation signal that judges whether to receive automatic control switch, if so, the front jockey wheel of execution monitoring rail traction car and rear track adjusting wheel are to the step of the pressure of rail.
According to a further aspect in the invention, a kind of control setup of rail traction car is provided, comprise: pressure monitoring module, be used for when the rail traction car when rail travels, the interior pressure of rodless cavity of the front jockey wheel of monitoring rail traction car and the telescopic oil cylinder of rear track adjusting wheel; The pressure control module is used for according to the output control front jockey wheel of pressure monitoring module monitoring and the rear track adjusting wheel pressure to rail, so that the front jockey wheel of rail traction car and rear track adjusting wheel remain within the preset range the pressure of rail.
Above-mentioned pressure monitoring module comprises: the first pressure monitoring unit, be used for by being arranged on the leading pressure in the rodless cavity of telescopic oil cylinder of leading the first pressure sensor monitoring in the rodless cavity of telescopic oil cylinder of rail traction car, this pressure reflection front jockey wheel is to the pressure of rail; The second pressure monitoring unit is used for the pressure in the rodless cavity of guide extension oil cylinder behind the second pressure sensor monitoring in the rodless cavity of the rear guide extension oil cylinder by being arranged on the rail traction car, and track adjusting wheel is to the pressure of rail after this pressure reflection.
Above-mentioned pressure control module comprises: the first pressure control unit, if be used for monitoring force value that the first pressure sensor detects less than the minimum of the first preset range, the mode that the electromagnetic valve that connects by guide extension oil cylinder forward sends the control signal of injection liquid force feed in the rodless cavity improves front jockey wheel to the pressure of rail; If monitor force value that the first pressure sensor detects greater than the peak of the first preset range, the mode that the electromagnetic valve that connects by guide extension oil cylinder forward sends the control signal of injection liquid force feed in the rod chamber reduces front jockey wheel to the pressure of rail; The second pressure control unit, if be used for monitoring force value that the second pressure sensor detects less than the minimum of the second preset range, the mode that the electromagnetic valve that connects by guide extension oil cylinder backward sends the control signal of injection liquid force feed in the rodless cavity improves rear track adjusting wheel to the pressure of rail; If monitor force value that the second pressure sensor detects greater than the peak of the second preset range, the electromagnetic valve that connects of the guide extension oil cylinder mode that sends the control signal of injection liquid force feed in the rod chamber reduces rear track adjusting wheel to the pressure of rail backward.
According to another aspect of the invention, a kind of control system of rail traction car is provided, comprise: detecting device, be used for when the rail traction car when rail travels, detect the interior pressure of rodless cavity of the telescopic oil cylinder of the front jockey wheel of rail traction car and rear track adjusting wheel; Controller is used for obtaining testing result from detecting device, according to testing result control front jockey wheel and the rear track adjusting wheel pressure to rail, so that the front jockey wheel of rail traction car and rear track adjusting wheel remain within the preset range the pressure of rail.
Above-mentioned detection device comprises: be arranged on leading first pressure sensor in the rodless cavity of telescopic oil cylinder of rail traction car, for detection of leading pressure in the rodless cavity of telescopic oil cylinder, and with the pressure feedback that detects to controller; Be arranged on the second pressure sensor in the rodless cavity of rear guide extension oil cylinder of rail traction car, for detection of the pressure in the rodless cavity of rear guide extension oil cylinder, and with the pressure feedback that detects to controller.
Above-mentioned controller is used for when monitoring force value that the first pressure sensor detects less than the minimum of the first preset range, and the mode that the electromagnetic valve that connects by guide extension oil cylinder forward sends the control signal of injection liquid force feed in the rodless cavity improves front jockey wheel to the pressure of rail; When monitoring force value that the first pressure sensor detects greater than the peak of the first preset range, the mode that the electromagnetic valve that connects by guide extension oil cylinder forward sends the control signal of injection liquid force feed in the rod chamber reduces front jockey wheel to the pressure of rail.
Above-mentioned controller also is used for when monitoring force value that the second pressure sensor detects less than the minimum of the second preset range, and the mode that the electromagnetic valve that connects by guide extension oil cylinder backward sends the control signal of injection liquid force feed in the rodless cavity improves rear track adjusting wheel to the pressure of rail; When monitoring force value that the second pressure sensor detects greater than the peak of the second preset range, the mode that the electromagnetic valve that connects by guide extension oil cylinder backward sends the control signal of injection liquid force feed in the rod chamber reduces rear track adjusting wheel to the pressure of rail.
Said system also comprises: automatic control switch is used for starting under user's operation or closing, and sends actuation signal to controller after startup; Above-mentioned controller also is used for judging whether to receive the actuation signal of automatic control switch, and if so, the front jockey wheel of startup monitoring rail traction car and rear track adjusting wheel are to the function of the pressure of rail.
In accordance with a further aspect of the present invention, provide a kind of rail traction car to comprise the control system of above-mentioned rail traction car.
The present invention controls the size of the pressure between track adjusting wheel and rail according to the pressure in the rodless cavity of telescopic oil cylinder of monitoring track adjusting wheel, and the track adjusting wheel of rail traction car and the pressure between rail are kept in the reasonable scope.This mode can either guarantee that the rail traction car does not derail, and can also make its tire that enough propulsive efforts are provided, guarantee that its traction function is normal, therefore solved the rail traction car when rail travels, there is the excessive or too small problem of pressure between track adjusting wheel and rail, promoted safety and the tractive property of rail traction car.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the rail guidance system scheme drawing according to the rail traction car of correlation technique;
Fig. 2 is the control method diagram of circuit according to the rail traction car of the embodiment of the invention;
Fig. 3 is the leading lateral plan to mechanism according to the embodiment of the invention;
Fig. 4 is the leading front elevation to mechanism according to the embodiment of the invention;
Fig. 5 is the leading method flow diagram to mechanism controls according to the embodiment of the invention;
Fig. 6 is the structured flowchart according to the control setup of the rail traction car of the embodiment of the invention; And
Fig. 7 is the structured flowchart according to the control system of the rail traction car of the embodiment of the invention.
The specific embodiment
Hereinafter also describe in conjunction with the embodiments the present invention in detail with reference to accompanying drawing.Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Consider the rail traction car when rail travels, the excessive or too small road rail vehicle that all can cause of the pressure between track adjusting wheel and rail can't normally travel, and the embodiment of the invention provides a kind of rail traction car and control method, device and system.Be described below by embodiment.
Referring to the control method diagram of circuit of rail traction car shown in Figure 2, the method can be applied in the controller of rail traction car, and the method may further comprise the steps:
Step S202, when the rail traction car when rail travels, the front jockey wheel of monitoring rail traction car and rear track adjusting wheel are to the pressure of rail; In order to strengthen the reliability of monitoring, present embodiment can adopt the mode of Real-Time Monitoring;
Step S204, according to the output control front jockey wheel of monitoring and rear track adjusting wheel to the pressure of rail, so that the front jockey wheel of rail traction car and rear track adjusting wheel remain within the preset range the pressure of rail.
The embodiment of the invention is controlled the size of the pressure between track adjusting wheel and rail according to the pressure in the rodless cavity of telescopic oil cylinder of monitoring track adjusting wheel (comprising front jockey wheel and rear track adjusting wheel), and the track adjusting wheel of rail traction car and the pressure between rail are kept in the reasonable scope.This mode can either guarantee that the rail traction car does not derail, and can also make its tire that enough propulsive efforts are provided, guarantee that its traction function is normal, therefore solved the rail traction car when rail travels, there is the excessive or too small problem of pressure between track adjusting wheel and rail, promoted safety and the tractive property of rail traction car.
For the pressure in the rodless cavity of the telescopic oil cylinder that can monitor more easily track adjusting wheel, the embodiment of the invention arranges a pressure sensor in the rodless cavity of forward and backward guide extension oil cylinder, determine the pressure in the rodless cavity of telescopic oil cylinder of track adjusting wheel by the mode of the force value of monitoring in the rodless cavity, according to the physical construction feature of the rodless cavity of forward and backward track adjusting wheel and forward and backward guide extension oil cylinder as can be known, the force value in the forward and backward guiding oil cylinder rodless cavity reflected respectively forward and backward track adjusting wheel rail pressure.Based on this, the front jockey wheel of above-mentioned monitoring rail traction car and rear track adjusting wheel can comprise the pressure of rail: by being arranged on the leading pressure in the rodless cavity of telescopic oil cylinder of leading the first pressure sensor monitoring in the rodless cavity of telescopic oil cylinder of rail traction car, this pressure reflection front jockey wheel is to the pressure of rail; Pressure behind the second pressure sensor monitoring in the rodless cavity of the rear guide extension oil cylinder by being arranged on the rail traction car in the rodless cavity of guide extension oil cylinder, track adjusting wheel is to the pressure of rail after this pressure reflection.In the easier realization in track adjusting wheel place, design cost is low with pressure sensor design for the design attitude ratio of this pressure sensor.
Certainly, according to actual conditions, pressure sensor also can be arranged on other position, as long as the pressure of its detection can reflect that track adjusting wheel is to the pressure of rail.
For the ease of understanding the position of pressure sensor, the embodiment of the invention describes as an example of front jockey wheel example, leading lateral plan to mechanism's (or title guide piece) as shown in Figure 3, wherein, this device comprises: the pressure sensor 2(in the guide extension oil cylinder 1, guide extension oil cylinder rodless cavity is above-mentioned the first pressure sensor), guide wheel bracket 3 and track adjusting wheel 4; Leading front elevation to mechanism has as shown in Figure 4 also illustrated guide wheel shaft 5 among this figure.
When specific implementation, can comprise according to the pressure of the output control front jockey wheel of monitoring to rail: if monitor the force value of the first pressure sensor detection less than the minimum of the first preset range, improve front jockey wheel to the pressure of rail; If monitor the force value of the first pressure sensor detection greater than the peak of the first preset range, reduce front jockey wheel to the pressure of rail.Wherein, above-mentioned minimum and peak can rule of thumb be set with actual conditions.By this mode, can effectively the pressure of front jockey wheel to rail be controlled in the rational scope.
When improving front jockey wheel to the pressure of rail, the electromagnetic valve that present embodiment adopts guide extension oil cylinder forward to connect sends the control signal of injection liquid force feed in the rodless cavity, so that leadingly drive front jockey wheel to telescopic oil cylinder under the squeezing action of hydraulic oil and stretch out downwards; Reducing the pressure of front jockey wheel to rail be, the electromagnetic valve that present embodiment adopts guide extension oil cylinder forward to connect sends the control signal of injection liquid force feed in the rod chamber, so that leadingly drives upwards retraction of front jockey wheel to telescopic oil cylinder under the squeezing action of hydraulic oil.Present embodiment adopts electromagnetic valve to finish electricity/liquid signal conversion, is convenient to improve or reduce front jockey wheel to the pressure of rail.
Similar with the control of above-mentioned front jockey wheel, for rear track adjusting wheel, if monitor the force value of the second pressure sensor detection less than the minimum of the second preset range, track adjusting wheel is to the pressure of rail after improving; If monitor the force value of the second pressure sensor detection greater than the peak of the second preset range, track adjusting wheel is to the pressure of rail after reducing.When track adjusting wheel is to the pressure of rail after raising, the electromagnetic valve that present embodiment adopts guide extension oil cylinder backward to connect sends the control signal of injection liquid force feed in the rodless cavity, stretches out downwards so that rear guide extension oil cylinder drives afterwards track adjusting wheel under the squeezing action of hydraulic oil; When track adjusting wheel is to the pressure of rail after reduction, the electromagnetic valve that present embodiment adopts guide extension oil cylinder backward to connect sends the control signal of injection liquid force feed in the rod chamber so that rear guide extension oil cylinder under the squeezing action of hydraulic oil, drives after upwards retraction of track adjusting wheel.
Present embodiment at layont of Interior Cab a switch, the startup of the automatic guide program of controller that can manual control rail traction car with close, only guarantee that automatic guiding function is just enabled when the rail traction pattern.Based on this, before the front jockey wheel and the pressure of rear track adjusting wheel to rail of above-mentioned monitoring rail traction car, said method also comprises: the actuation signal that judges whether to receive automatic control switch, if so, the front jockey wheel of execution monitoring rail traction car and rear track adjusting wheel are to the step of the pressure of rail.If not, then do not monitor action.
In order to guarantee that the pressure between track adjusting wheel and the rail remains on (range of pressure values requires calculation and test to draw according to vehicle performance) in the suitable scope always, present embodiment has designed the system of a cover closed loop control.Rodless cavity at leading rodless cavity to telescopic oil cylinder and rear guide extension oil cylinder has respectively filled a pressure sensor, pressure before and after detecting respectively in the guiding oil cylinder rodless cavity, press the characteristic of physical construction, before and after the force value in the guiding oil cylinder rodless cavity of front and back has reflected respectively track adjusting wheels rail pressure.Simultaneously, the rodless cavity of leading two telescopic oil cylinders to mechanism or rear guiding mechanism communicates, it is big or small to detect the pressure that any telescopic oil cylinder rodless cavity pressure wherein namely reacted between this group track adjusting wheel and the rail, so present embodiment only need to arrange two pressure sensors.
Guiding mechanism was example in the past: when supposing that range of pressure between front jockey wheel and the rail is between P0～P1, can guarantee vehicle safe driving, corresponding leading pressure sensor pressure detection scope to oil cylinder rodless cavity is P0 '～P1 '.Leading method flow diagram to mechanism controls as shown in Figure 5, the method may further comprise the steps:
Step S502, the acquisition operations signal namely gathers the actuation signal of above-mentioned automatic control switch;
Step S504 judges whether to start automatic guiding function according to collection result, if so, and execution in step S506; If not, finish; Present embodiment then starts automatic guiding function after collecting above-mentioned actuation signal, otherwise does not start automatic guiding function;
Step S506 obtains the leading pressure value P that detects to the pressure sensor of oil cylinder rodless cavity;
Whether step S508 judges P less than P0 ', if so, and execution in step S510; If not, execution in step S512;
Step S510 is by the forward rodless cavity oiling of guiding oil cylinder of control program control electromagnetic valve;
Whether step S512 judges P greater than P1 ', if so, and execution in step S514; If not, finish;
Step S514 is by the forward rod chamber oiling of guiding oil cylinder of control program control electromagnetic valve.
By above-mentioned control method as can be known, when pressure sensor detects rodless cavity actual pressure P＜P0 ', by the forward guiding oil cylinder rodless cavity oiling of control program control electromagnetic valve, guiding oil cylinder is stretched out, drive track adjusting wheel and stretch out downwards, rodless cavity internal pressure P constantly increases then, when P increases to than P0 ' greatly, control program stops the electromagnetic valve action, stops forward guiding oil cylinder rodless cavity oiling, stops the action of stretching out of track adjusting wheel; When pressure sensor detects rodless cavity actual pressure P〉P1 ' time, by the forward guiding oil cylinder rod chamber oiling of control program control electromagnetic valve, guiding oil cylinder is retracted, track adjusting wheel is upwards retracted, then rodless cavity internal pressure P constantly reduces, and when P was reduced to than P1 ' hour, control program stops the electromagnetic valve action, stop forward guiding oil cylinder rod chamber oiling, stop the action of track adjusting wheel contracting.
Rear track adjusting wheel is identical with the pressure controling mode of front jockey wheel with the pressure control between the rail, range of pressure after supposing between track adjusting wheel and the rail is between P2～P3 the time, can guarantee vehicle safe driving, the pressure sensor pressure detection scope of guiding oil cylinder rodless cavity is P2 '～P3 ' after corresponding, detailed process is the same, repeats no more here.
Corresponding to said method, the embodiment of the invention also provides a kind of control setup of rail traction car, and this device can be arranged in the controller of rail traction car.Referring to the structured flowchart of the control setup of rail traction car shown in Figure 6, this device comprises: pressure monitoring module 62, be used for when the rail traction car when rail travels, monitor the front jockey wheel of rail traction car and rear track adjusting wheel to the pressure of rail; Pressure control module 64 is used for according to the output control front jockey wheel of pressure monitoring module 62 monitorings and the rear track adjusting wheel pressure to rail, so that the front jockey wheel of rail traction car and rear track adjusting wheel remain within the preset range the pressure of rail.
The device of present embodiment is controlled the size of the pressure between track adjusting wheel and rail according to the pressure in the rodless cavity of telescopic oil cylinder of monitoring track adjusting wheel, and the track adjusting wheel of rail traction car and the pressure between rail are kept in the reasonable scope.This mode can either guarantee that the rail traction car does not derail, and can also make its tire that enough propulsive efforts are provided, guarantee that its traction function is normal, therefore solved the rail traction car when rail travels, there is the excessive or too small problem of pressure between track adjusting wheel and rail, promoted safety and the tractive property of rail traction car.
Setting position according to above-mentioned pressure sensor, the pressure monitoring module 62 of present embodiment comprises: the first pressure monitoring unit, be used for by being arranged on the leading pressure in the rodless cavity of telescopic oil cylinder of leading the first pressure sensor monitoring in the rodless cavity of telescopic oil cylinder of rail traction car, this pressure reflection front jockey wheel is to the pressure of rail; The second pressure monitoring unit is used for the leading pressure in the rodless cavity of telescopic oil cylinder of the second pressure sensor monitoring in the rodless cavity of the rear guide extension oil cylinder by being arranged on combined tractor truck, and track adjusting wheel is to the pressure of rail after this pressure reflection.
Correspondingly, pressure control module 64 comprises: the first pressure control unit, if be used for monitoring the force value of the first pressure sensor detection less than the minimum of the first preset range, improve front jockey wheel to the pressure of rail; If monitor the force value of the first pressure sensor detection greater than the peak of the first preset range, reduce front jockey wheel to the pressure of rail; The second pressure control unit, if be used for monitoring the force value of the second pressure sensor detection less than the minimum of the second preset range, track adjusting wheel is to the pressure of rail after improving; If monitor the force value of the second pressure sensor detection greater than the peak of the second preset range, track adjusting wheel is to the pressure of rail after reducing.
Above-mentioned pressure control module 64 is when determine improving front jockey wheel to the pressure of rail, the electromagnetic valve that connects of guide extension oil cylinder sends the control signal of injection liquid force feed in the rodless cavity forward, so that leadingly drive front jockey wheel to telescopic oil cylinder under the squeezing action of hydraulic oil and stretch out downwards; When determine reducing front jockey wheel to the pressure of rail, the electromagnetic valve that connects of guide extension oil cylinder sends the control signal of injection liquid force feed in the rod chamber forward, so that leadingly drives upwards retraction of front jockey wheel to telescopic oil cylinder under the squeezing action of hydraulic oil.
In like manner, above-mentioned pressure control module 64 is when track adjusting wheel is to the pressure of rail after determine improving, the electromagnetic valve that connects of guide extension oil cylinder sends the control signal of injection liquid force feed in the rodless cavity backward, stretches out downwards so that rear guide extension oil cylinder drives afterwards track adjusting wheel under the squeezing action of hydraulic oil; When track adjusting wheel was to the pressure of rail after determine reducing, the electromagnetic valve that connects of guide extension oil cylinder sent the control signal of injection liquid force feed in the rod chamber backward so that rear guide extension oil cylinder under the squeezing action of hydraulic oil, drives after upwards retraction of track adjusting wheel.
Corresponding to said method and device, the embodiment of the invention also provides a kind of control system of rail traction car, referring to Fig. 7, this system comprises: detecting device 72, be used for when the rail traction car when rail travels, detect the interior pressure of rodless cavity of the telescopic oil cylinder of the front jockey wheel of rail traction car and rear track adjusting wheel; Controller 74 is used for obtaining testing result from detecting device 72, according to above-mentioned testing result control front jockey wheel and the rear track adjusting wheel pressure to rail, so that the front jockey wheel of rail traction car and rear track adjusting wheel remain within the preset range the pressure of rail.
Preferably, this detecting device 72 comprises: be arranged on leading first pressure sensor in the rodless cavity of telescopic oil cylinder of rail traction car, for detection of leading pressure in the rodless cavity of telescopic oil cylinder, and with the pressure feedback that detects to controller 74; Be arranged on the second pressure sensor in the rodless cavity of rear guide extension oil cylinder of combined tractor truck, for detection of the pressure in the rodless cavity of rear guide extension oil cylinder, and with the pressure feedback that detects to controller 74.
Above-mentioned controller 74 is used for when monitoring force value that the first pressure sensor detects less than the minimum of the first preset range, improves front jockey wheel to the pressure of rail by the mode that sends the control signal of injection liquid force feed in the rodless cavity to the above-mentioned leading electromagnetic valve that connects to telescopic oil cylinder; When monitoring force value that the first pressure sensor detects greater than the peak of the first preset range, reduce front jockey wheel to the pressure of rail by the mode that sends the control signal of injection liquid force feed in the rod chamber to the above-mentioned leading electromagnetic valve that connects to telescopic oil cylinder.
Above-mentioned controller 74 also is used for when monitoring force value that the second pressure sensor detects less than the minimum of the second preset range, and the mode that sends the control signal of injection liquid force feed in the rodless cavity by the electromagnetic valve that connects to above-mentioned rear guide extension oil cylinder improves rear track adjusting wheel to the pressure of rail; When monitoring force value that the second pressure sensor detects greater than the peak of the second preset range, the mode that sends the control signal of injection liquid force feed in the rod chamber by the electromagnetic valve that connects to above-mentioned rear guide extension oil cylinder reduces rear track adjusting wheel to the pressure of rail.
Said system also comprises: automatic control switch is used for starting under user's operation or closing, and sends actuation signal to controller 74 after startup; Correspondingly, above-mentioned controller 74 also is used for judging whether to receive the actuation signal of automatic control switch, and if so, the front jockey wheel of startup monitoring rail traction car and rear track adjusting wheel are to the function of the pressure of rail.
In specific implementation, the controller in the native system can adopt the structure of the control setup of above-mentioned rail traction car to realize.The control system of the rail traction car of present embodiment also comprises track adjusting wheel, guide wheel bracket, guide extension oil cylinder, guide extension oil cylinder apportioning valve (being above-mentioned electromagnetic valve) etc. except comprising the said equipment.Wherein, above-mentioned controller can be PLC(ProgrammableLogic Controller, programmable logic controller (PLC)), its inside PLC control program, the feedback signal of the pressure sensor that is gathered by the analysis of PLC control program realizes the reasonable action of railway guiding mechanism by the control to electro-hydraulic proportional valve (being above-mentioned electromagnetic valve).
Corresponding to said method, device and system, the embodiment of the invention also provides a kind of rail traction car, and this rail traction car comprises the control system of above-mentioned rail traction car.Like this, this rail traction car can carry out Closed check-up and control to the front and back guiding mechanism, guarantees to remain between track adjusting wheel and the rail between safe the rail pressure always.Preferably, described rail traction car is combined tractor truck.
As can be seen from the above description, the above-mentioned mode of the embodiment of the invention mainly relies on controller to finish, track adjusting wheel and the pressure between rail of rail traction car are kept in the reasonable scope, solved the rail traction car when rail travels, there is the excessive or too small problem of pressure between track adjusting wheel and rail, promoted safety and the tractive property of rail traction car.Simultaneously, the control program of this mode can be revised at any time, conveniently for the function of different situation Adjustment System and the parameter of system, is convenient to repacking and the upgrading of system, and upgrade cost is lower.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general computer device, they can concentrate on the single computer device, perhaps be distributed on the network that a plurality of computer devices form, alternatively, they can be realized with the executable program code of computer device, thereby, they can be stored in the memory storage and be carried out by computer device, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. the control method of a rail traction car is characterized in that, comprising:
When the rail traction car when rail travels, monitor the pressure in the rodless cavity of telescopic oil cylinder of the front jockey wheel of described rail traction car and rear track adjusting wheel;
According to the described front jockey wheel of output control of monitoring and described rear track adjusting wheel to the pressure of rail, so that the front jockey wheel of described rail traction car and rear track adjusting wheel remain within the preset range the pressure of rail.
2. method according to claim 1 is characterized in that, monitors the front jockey wheel of described rail traction car and the interior pressure of rodless cavity of rear track adjusting wheel telescopic oil cylinder and comprises:
By being arranged on the described leading pressure in the rodless cavity of telescopic oil cylinder of leading the first pressure sensor monitoring in the rodless cavity of telescopic oil cylinder of described rail traction car, this pressure reflection front jockey wheel is to the pressure of rail;
Pressure in the rodless cavity of the described rear guide extension oil cylinder of the second pressure sensor monitoring in the rodless cavity of the rear guide extension oil cylinder by being arranged on described rail traction car, track adjusting wheel is to the pressure of rail after this pressure reflection.
3. method according to claim 2 is characterized in that, comprises according to the pressure of the described front jockey wheel of output control of monitoring to rail:
If monitor the force value of described the first pressure sensor detection less than the minimum of the first preset range, improve described front jockey wheel to the pressure of rail;
If monitor the force value of described the first pressure sensor detection greater than the peak of the first preset range, reduce described front jockey wheel to the pressure of rail.
4. method according to claim 3, it is characterized in that, improving described front jockey wheel comprises the pressure of rail: send the control signal of injection liquid force feed in the rodless cavity to the described leading electromagnetic valve that connects to telescopic oil cylinder, so that describedly leadingly drive described front jockey wheel to telescopic oil cylinder under the squeezing action of hydraulic oil and stretch out downwards;
Reducing described front jockey wheel comprises the pressure of rail: send the control signal of injection liquid force feed in the rod chamber to the described leading electromagnetic valve that connects to telescopic oil cylinder, so that describedly leadingly drives the upwards retraction of described front jockey wheel to telescopic oil cylinder under the squeezing action of hydraulic oil.
5. method according to claim 2 is characterized in that, comprises according to the pressure of the described rear track adjusting wheel of output control of monitoring to rail:
If monitor the force value of described the second pressure sensor detection less than the minimum of the second preset range, improve described rear track adjusting wheel to the pressure of rail;
If monitor the force value of described the second pressure sensor detection greater than the peak of the second preset range, reduce described rear track adjusting wheel to the pressure of rail.
6. method according to claim 5, it is characterized in that, improving described rear track adjusting wheel comprises the pressure of rail: the electromagnetic valve that connects to described rear guide extension oil cylinder sends the control signal of injection liquid force feed in the rodless cavity, stretches out downwards so that described rear guide extension oil cylinder drives described rear track adjusting wheel under the squeezing action of hydraulic oil;
Reducing described rear track adjusting wheel comprises the pressure of rail: the electromagnetic valve that connects to described rear guide extension oil cylinder sends the control signal of injection liquid force feed in the rod chamber, so that described rear guide extension oil cylinder drives the upwards retraction of described rear track adjusting wheel under the squeezing action of hydraulic oil.
7. each described method in 6 according to claim 1 is characterized in that monitor before the front jockey wheel and the pressure of rear track adjusting wheel to rail of described rail traction car, described method also comprises:
Judge whether to receive the actuation signal of automatic control switch, if so, carry out the front jockey wheel of the described rail traction car of described monitoring and rear track adjusting wheel to the step of the pressure of rail.
8. the control setup of a rail traction car is characterized in that, comprising:
Pressure monitoring module, be used for when the rail traction car when rail travels, monitor the interior pressure of rodless cavity of the telescopic oil cylinder of the front jockey wheel of described rail traction car and rear track adjusting wheel;
The pressure control module, be used for according to the described front jockey wheel of output control of described pressure monitoring module monitoring and the described rear track adjusting wheel pressure to rail, so that the front jockey wheel of described rail traction car and rear track adjusting wheel remain within the preset range the pressure of rail.
9. device according to claim 8 is characterized in that, described pressure monitoring module comprises:
The first pressure monitoring unit is used for by being arranged on the described leading pressure in the rodless cavity of telescopic oil cylinder of leading the first pressure sensor monitoring in the rodless cavity of telescopic oil cylinder of described rail traction car, and this pressure reflection front jockey wheel is to the pressure of rail;
The second pressure monitoring unit is used for the pressure in the rodless cavity of the described rear guide extension oil cylinder of the second pressure sensor monitoring in the rodless cavity of the rear guide extension oil cylinder by being arranged on described rail traction car, and track adjusting wheel is to the pressure of rail after this pressure reflection.
10. device according to claim 9 is characterized in that, described pressure control module comprises:
The first pressure control unit, if be used for monitoring force value that described the first pressure sensor detects less than the minimum of the first preset range, improve described front jockey wheel to the pressure of rail by the mode that sends the control signal of injection liquid force feed in the rodless cavity to the described leading electromagnetic valve that connects to telescopic oil cylinder; If monitor force value that described the first pressure sensor detects greater than the peak of the first preset range, reduce described front jockey wheel to the pressure of rail by the mode that sends the control signal of injection liquid force feed in the rod chamber to the described leading electromagnetic valve that connects to telescopic oil cylinder;
The second pressure control unit, if be used for monitoring force value that described the second pressure sensor detects less than the minimum of the second preset range, the mode that sends the control signal of injection liquid force feed in the rodless cavity by the electromagnetic valve that connects to described rear guide extension oil cylinder improves described rear track adjusting wheel to the pressure of rail; If monitor force value that described the second pressure sensor detects greater than the peak of the second preset range, the mode that the electromagnetic valve that connects to described rear guide extension oil cylinder sends the control signal of injection liquid force feed in the rod chamber reduces described rear track adjusting wheel to the pressure of rail.
11. the control system of a rail traction car is characterized in that, comprising:
Detecting device, be used for when the rail traction car when rail travels, detect the interior pressure of rodless cavity of the telescopic oil cylinder of the front jockey wheel of described rail traction car and rear track adjusting wheel;
Controller, be used for obtaining testing result from described detecting device, control described front jockey wheel and described rear track adjusting wheel to the pressure of rail according to described testing result, so that the front jockey wheel of described rail traction car and rear track adjusting wheel remain within the preset range the pressure of rail.
12. system according to claim 11 is characterized in that, described detecting device comprises:
Be arranged on leading first pressure sensor in the rodless cavity of telescopic oil cylinder of described rail traction car, for detection of described leading pressure in the rodless cavity of telescopic oil cylinder, and the described pressure feedback that will detect is given described controller;
Be arranged on the second interior pressure sensor of rodless cavity of the rear guide extension oil cylinder of described rail traction car, for detection of the pressure in the rodless cavity of described rear guide extension oil cylinder, and the described pressure feedback that will detect is given described controller.
13. system according to claim 12, it is characterized in that, described controller is used for when monitoring force value that described the first pressure sensor detects less than the minimum of the first preset range, improves described front jockey wheel to the pressure of rail by the mode that sends the control signal of injection liquid force feed in the rodless cavity to the described leading electromagnetic valve that connects to telescopic oil cylinder; When monitoring force value that described the first pressure sensor detects greater than the peak of the first preset range, reduce described front jockey wheel to the pressure of rail by the mode that sends the control signal of injection liquid force feed in the rod chamber to the described leading electromagnetic valve that connects to telescopic oil cylinder.
14. system according to claim 12, it is characterized in that, described controller also is used for when monitoring force value that described the second pressure sensor detects less than the minimum of the second preset range, and the mode that sends the control signal of injection liquid force feed in the rodless cavity by the electromagnetic valve that connects to described rear guide extension oil cylinder improves described rear track adjusting wheel to the pressure of rail; When monitoring force value that described the second pressure sensor detects greater than the peak of the second preset range, the mode that sends the control signal of injection liquid force feed in the rod chamber by the electromagnetic valve that connects to described rear guide extension oil cylinder reduces described rear track adjusting wheel to the pressure of rail.
15. each described system in 14 according to claim 11, it is characterized in that described system also comprises: automatic control switch is used for starting under user's operation or closing, and sends actuation signal to described controller after startup;
Described controller also is used for judging whether to receive the actuation signal of automatic control switch, if so, starts the front jockey wheel of the described rail traction car of described monitoring and rear track adjusting wheel to the function of the pressure of rail.
16. a rail traction car is characterized in that, comprises the control system of each described rail traction car in the claim 11 to 15.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210479089.5A CN102922965B (en) | 2012-11-22 | 2012-11-22 | Railway tractor, as well as method, device and system for controlling same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210479089.5A CN102922965B (en) | 2012-11-22 | 2012-11-22 | Railway tractor, as well as method, device and system for controlling same |
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| CN102922965A true CN102922965A (en) | 2013-02-13 |
| CN102922965B CN102922965B (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210479089.5A Active CN102922965B (en) | 2012-11-22 | 2012-11-22 | Railway tractor, as well as method, device and system for controlling same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104443082A (en) * | 2014-12-01 | 2015-03-25 | 衡阳合力工业车辆有限公司 | Tractor |
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|---|---|
| CN102922965B (en) | 2015-07-22 |
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