CN109435934B - Heavy-duty truck brake reconnection protection device - Google Patents

Heavy-duty truck brake reconnection protection device Download PDF

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Publication number
CN109435934B
CN109435934B CN201811269358.9A CN201811269358A CN109435934B CN 109435934 B CN109435934 B CN 109435934B CN 201811269358 A CN201811269358 A CN 201811269358A CN 109435934 B CN109435934 B CN 109435934B
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China
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local
signal
reconnection
complementary
valve
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CN109435934A (en
Inventor
王靖平
杨永清
史瑞君
杨晓燕
薛慧敏
路海峰
赵瑞杰
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Taiyuan CRRC Times Railway Engineering Machinery Co Ltd
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Taiyuan CRRC Times Railway Engineering Machinery Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses a reconnection protection device for an engineering vehicle brake, which comprises the following components: the system comprises a local reconnection valve conversion state detection switch and a complementary reconnection valve conversion state detection switch, wherein the local reconnection valve conversion state detection switch is used for detecting the conversion state of a local reconnection valve to output a first state signal, and the complementary reconnection valve conversion state detection switch is used for detecting the conversion state of a complementary reconnection valve to output a second state signal; a local processor and a complementary processor; the machine contactor and the complementary machine contactor. The reconnection protection device for the engineering vehicle brake has simple structure and good performance, can prevent the braking force of the engineering vehicle from weakening due to the fact that the reconnection device is not converted, is not converted in place or is started when the conversion is incorrect, avoids serious accidents such as rail taking and derailment, avoids the occurrence of locomotive wheel slow accidents, and ensures that the engineering vehicle runs more safely and reliably.

Description

Heavy-duty truck brake reconnection protection device
Technical Field
The invention belongs to the technical field of railway engineering vehicles, and particularly relates to a heavy-duty truck brake reconnection protection device.
Background
Along with the continuous development of railway transportation, the engineering truck has higher requirements, and not only meets the requirements of railway engineering operation, but also is used as a tractor. In order to meet the requirements of double-machine or multi-machine traction of the engineering truck, the power control system of the engineering truck is required to be connected again, and the reconnection of a braking system is also necessary, and is particularly important.
Many engineering vehicles, rail cars, etc. are being added with a reconnection design of the brake system. In the actual design, a reconnection valve is added, and the switching of the engine and the repairing machine is realized through the switching of the reconnection valve. However, in actual application, due to negligence of personnel, serious accidents such as impossibility and derailment or delayed locomotive driving accidents are caused by weakening of braking force of the engineering vehicle caused by unconverted, out-of-place conversion and incorrect driving of the engineering vehicle, so that huge economic loss is caused.
In order to realize the reconnection function, a reconnection valve is added to realize the functions of synchronous braking, pressure maintaining, relieving and the like of the reconnection vehicle, and the engineering vehicle has the hook breaking protection function by taking a JZ-7 brake as an example. And a total wind connecting pipe and an average pipe are additionally arranged at the vehicle end. And a brake pipe, an average pipe and a total wind-connected pipe which are connected with the lead service vehicle and the reconnection vehicle. When the service locomotive reconnection valve is arranged at the 'local position', the reconnection valve enables the distribution valve pipe and the action valve pipe to generate action pipe pressure, the pressure of the brake cylinder is controlled through the relay valve, and meanwhile, the average pipe is connected with the brake cylinder pipe through the reconnection valve to generate average pipe pressure. The large and small brake handles at the two ends of the repairing machine are taken out, so that the relay valve is self-locking, and the train pipe is not controlled by the relay valve of the repairing machine. The reconnection valve is arranged at the 'repairing position', the distribution valve pipe and the action valve pipe are blocked, the action valve pipe is communicated with the average pipe, and the pressure of the action valve pipe is generated through the pressure of the average pipe, so that the reconnection valve acts on the repairing section relay valve, the braking and the relieving of the repairing section are realized through the repairing section relay valve, and the synchronous action of the two-section vehicle braking system is achieved. When the operation joint and the non-operation joint are both arranged at the 'local position', the operation joint reconnection valve enables the distribution valve pipe to be communicated with the action valve pipe to generate pressure of the action pipe, the relay valve controls braking and relieving of the braking cylinder, and meanwhile, the reconnection valve enables the average pipe to be connected with the braking cylinder pipe to generate pressure of the average pipe. The non-operation section average pipe is communicated with the brake cylinder pipe, and the distribution valve pipe is communicated with the action valve pipe, but the large and small brake handles at the two ends of the repairing machine are taken out, so that the relay valve is self-locking, the repairing machine section can not generate the pressure of the distribution valve pipe and the action valve pipe, and only the pressure of the brake cylinder pipe acts on the relay valve. According to the principle of the relay valve, the pressure of the brake cylinder tube is discharged through an air outlet of the relay valve, and the repairing section cannot generate braking force. Because the pressure of the non-operation-section brake cylinder is communicated with the pressure of the operation-section brake cylinder, the pressure of the operation-section brake cylinder is discharged along with the pressure of the operation-section brake cylinder, and thus the pressure of the brake cylinder is charged and discharged simultaneously, and the braking force of the heavy-duty locomotive is seriously insufficient or the braking force cannot be generated. The operation section and the non-operation section are both arranged at the 'machine supplementing position', the two double-connection valves of the two vehicles are both used for blocking the communication between the distribution valve pipe and the action valve pipe, the action valve pipe is communicated with the average pipe, at the moment, the large brake or the small brake of the machine can be operated to generate the pressure of the distribution valve pipe, but the distribution valve pipe is not communicated with the action valve pipe, the pressure of the action valve pipe cannot be generated, namely the pressure of the action pipe, the relay valve does not act, the pressure of the brake cylinder is 0, and the non-operation section is identical, so that the braking force of the double-connection vehicle cannot be generated. The operation node is arranged at the 'machine supplementing position', the non-operation node is arranged at the 'local position', the reconnection valve of the operation node blocks the communication between the distribution valve pipe and the action valve pipe, the action valve pipe is communicated with the average pipe, at the moment, the large brake or the small brake of the operation node can generate the pressure of the distribution valve pipe, but the distribution valve pipe is not communicated with the action valve pipe, the pressure of the action valve pipe cannot be generated, namely the pressure of the action pipe, the relay valve does not act, and the pressure of the brake cylinder is 0; the handles of the big brake and the small brake at the two ends of the repairing machine are taken out, and the distributing valve pipe is communicated with the acting valve pipe, but the braking force of the heavy truck is 0 because the big brake and the small brake cannot be operated to generate braking force.
From the analysis, if the changeover of the reconnection valve is wrong, the reconnection valve can not play a role, and the braking force can be reduced or even no braking force can be generated. The absence of braking forces in hypothetical operation would have immeasurable consequences. On the contrary, when the switching operation section is stopped midway, the reconnection valve is not switched correctly, the braking force cannot be relieved, and the driving wheels are slow or cannot run.
Therefore, the urgent need is that a device realizes the protection of the engineering vehicle brake reconnection, and avoids serious accidents such as impossibility and derailment caused by weakening of the braking force of the engineering vehicle due to the fact that the reconnection valve is not converted, is not converted in place and is started when the conversion is incorrect.
Disclosure of Invention
The invention aims to provide a heavy-duty truck motor heavy-duty truck protection device which has a simple structure and can realize the heavy-duty truck motor heavy-duty truck protection function.
In order to achieve the above object, the present invention provides a reconnection protection device for an engineering vehicle brake, the reconnection protection device comprising:
the system comprises a local reconnection valve conversion state detection switch and a complementary reconnection valve conversion state detection switch, wherein the local reconnection valve conversion state detection switch is used for detecting the conversion state of a local reconnection valve to output a first state signal, and the complementary reconnection valve conversion state detection switch is used for detecting the conversion state of a complementary reconnection valve to output a second state signal;
The system comprises a local processor and a complementary processor, wherein the local processor is respectively and electrically connected with a local reconnection valve conversion state detection switch, a complementary reconnection valve conversion state detection switch and an engineering vehicle operation section starting switch to receive the first state signal, the second state signal and the state signal of the engineering vehicle operation section starting switch and correspondingly output a local control signal, and the complementary processor is respectively and electrically connected with the local reconnection valve conversion state detection switch, the complementary reconnection valve conversion state detection switch and the engineering vehicle non-operation section starting switch to receive the first state signal, the second state signal and the state signal of the engineering vehicle non-operation section starting switch and correspondingly output a complementary control signal;
the engine control device comprises a local contactor and a complementary engine contactor, wherein the local contactor is electrically connected with the local processor and the local engine and is used for receiving the local control signal and correspondingly starting the local engine, and the complementary engine contactor is electrically connected with the complementary engine processor and the complementary engine and is used for receiving the complementary engine control signal and correspondingly starting the complementary engine.
Preferably, the reconnection protection device further includes: the first diode is arranged between the local processor and the local reconnection valve conversion state detection switch; the second diode is arranged between the make-up machine processor and the local reconnection valve conversion state detection switch; the third diode is arranged between the complementary machine processor and the complementary machine reconnection valve conversion state detection switch; and the fourth diode is arranged between the local processor and the changeover state detection switch of the auxiliary machine reconnection valve.
Preferably, the local processor outputs a local alarm signal according to the first state signal, the second state signal and the state signal of the engineering vehicle operation section starting switch, and the complementary processor outputs a complementary alarm signal according to the first state signal, the second state signal and the state signal of the engineering vehicle non-operation section starting switch.
Preferably, the reconnection protection device further includes: the local voice alarm is electrically connected with the local processor and is used for outputting and converting an error alarm according to the local alarm signal; and/or a local warning lamp, wherein the local warning lamp is electrically connected with the local processor and is used for sending out a lamplight alarm according to the local warning signal.
Preferably, the reconnection protection device further includes: the repairing machine voice alarm is electrically connected with the repairing machine processor and is used for outputting and converting an error alarm according to the repairing machine alarm signal; and/or a make-up warning lamp, wherein the make-up warning lamp is electrically connected with the make-up processor and is used for giving out a lamplight alarm according to the make-up warning signal.
Preferably, the reconnection protection device further includes: the local fault isolation switch is arranged between the local processor and the power supply; the repairing machine fault isolating switch is arranged between the repairing machine processor and the power supply.
Preferably, the local reconnection valve switching state detection switch and the complementary reconnection valve switching state detection switch are travel switches.
Preferably, the local reconnection valve switching state detection switch is arranged on a first mounting plate, and the first mounting plate is fixedly connected to a switching valve part of the local reconnection valve; the changeover state detection switch of the repairing machine reconnection valve is arranged on a second mounting plate, and the second mounting plate is fixedly connected to the changeover valve part of the repairing machine reconnection valve.
Preferably, the local contactor and the complementary contactor are both normally open contactors.
Preferably, when the first state signal is a local position signal, the second state signal is a complementary position signal, the state signal of the engineering vehicle operation section starting switch is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch is a non-starting signal, the local processor outputs the local control signal, and the complementary processor outputs the complementary control signal;
when the first state signal is a complementary machine position signal, the second state signal is a complementary machine position signal, the state signal of the engineering vehicle operation section starting switch is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch is a non-starting signal, the local processor outputs the local alarm signal, and the complementary machine processor outputs the complementary machine alarm signal;
When the first state signal is a local position signal, the second state signal is a local position signal, the state signal of the engineering vehicle operation section starting switch is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch is a non-starting signal, the local processor outputs the local alarm signal, and the complementary processor outputs the complementary alarm signal;
when the first state signal is a complementary machine position signal, the second state signal is a local machine position signal, the state signal of the engineering vehicle operation section starting switch is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch is a non-starting signal, the local processor outputs the local alarm signal, and the complementary machine processor outputs the complementary machine alarm signal.
The invention has the beneficial effects that: the reconnection protection device for the engineering vehicle brake has simple structure and good performance, can prevent the braking force of the engineering vehicle from weakening due to the fact that the reconnection device is not converted, is not converted in place or is started when the conversion is incorrect, avoids serious accidents such as impossibility and derailment, avoids the occurrence of locomotive wheel slow accidents, and ensures safer and more reliable operation of the engineering vehicle.
The system of the present invention has other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the present invention.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings. Wherein like reference numerals generally refer to like elements throughout the exemplary embodiments of the present invention.
Fig. 1 shows a schematic diagram of an engineering vehicle brake reconnection protection device according to an embodiment of the present invention.
Fig. 2 shows a processor control logic relationship diagram of an engineering vehicle brake reconnection protection device according to an embodiment of the present invention.
Fig. 3 is a diagram showing an installation structure of a reconnection valve changeover state detection switch of an engineering vehicle brake reconnection protection apparatus according to an embodiment of the present invention.
Reference numerals illustrate:
KM1, a local contactor; KM2, make-up contactor; 1. the local reconnection valve is switched to a state detection switch; 2. the changeover state detection switch of the reconnection valve of the repairing machine; 3. a local processor; 4. a make-up processor; 5. a first diode; 6. a second diode; 7. a fourth diode; 8. a third diode; 9. the local voice alarm; 10. the local warning lamp; 11. a repairing machine voice alarm; 12. a repairing machine warning lamp; 13. the local fault isolating switch; 14. repairing machine fault isolating switch; 15. the engine of the machine; 16. a make-up engine; 17. a 24V power supply; 18. an engineering vehicle operation section starting switch; 19. a non-operation section starting switch of the engineering truck; 20. a first mounting plate; 21. a push rod; 22. the machine reconnection valve changes the aperture on the valve portion.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiment of the invention is shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention relates to a heavy-duty truck brake machine protection device, which comprises:
the system comprises a local reconnection valve conversion state detection switch and a complementary reconnection valve conversion state detection switch, wherein the local reconnection valve conversion state detection switch is used for detecting the conversion state of a local reconnection valve to output a first state signal, and the complementary reconnection valve conversion state detection switch is used for detecting the conversion state of a complementary reconnection valve to output a second state signal;
the system comprises a local processor and a complementary processor, wherein the local processor is respectively and electrically connected with a local reconnection valve conversion state detection switch, a complementary reconnection valve conversion state detection switch and an engineering vehicle operation section starting switch to receive a first state signal, a second state signal and a state signal of the engineering vehicle operation section starting switch and correspondingly output a local control signal;
The engine control device comprises a local contactor and a complementary engine contactor, wherein the local contactor is electrically connected with a local processor and a local engine and is used for receiving local control signals and correspondingly starting the local engine, and the complementary engine contactor is electrically connected with the complementary engine processor and the complementary engine and is used for receiving complementary engine control signals and correspondingly starting the complementary engine.
Specifically, the local processor receives a first state signal detected and output by the local reconnection valve conversion state detection switch, a second state signal detected and output by the complementary reconnection valve conversion state detection switch and a state signal of the engineering vehicle operation section starting switch, judges whether the reconnection valve conversion is correct according to the received signals through a control logic relation, outputs a local control signal to the local contactor when the conversion is correct, and enables a coil of the local contactor to be electrified, so that a contact of the local contactor is closed, a running system of the local engine is started, and the complementary processor receives a first state signal detected and output by the local reconnection valve conversion state detection switch, a second state signal detected and output by the complementary reconnection valve conversion state detection switch and a state signal of the engineering vehicle non-operation section starting switch, judges whether the reconnection valve conversion is correct according to the received signals through the control logic relation, and outputs a complementary control signal to the complementary contactor when the conversion is correct, and enables the coil of the complementary contactor to be electrified, so that the contact of the complementary contactor is closed, and the running system of the complementary engine is started.
The reconnection protection device for the engineering vehicle brake has simple structure and good performance, can prevent the braking force of the engineering vehicle from weakening due to the fact that the reconnection device is not converted, is not converted in place or is started when the conversion is incorrect, avoids serious accidents such as impossibility of entering and derailing, and the like, avoids the occurrence of locomotive wheel slow accidents, and ensures safer and more reliable operation of the engineering vehicle.
Preferably, the reconnection protection device further includes: the first diode is arranged between the local processor and the local reconnection valve conversion state detection switch; the second diode is arranged between the make-up processor and the local reconnection valve conversion state detection switch; the third diode is arranged between the repairing machine processor and the repairing machine reconnection valve conversion state detection switch; and the fourth diode is arranged between the local processor and the changeover state detection switch of the duplicate connection valve of the repairing machine.
Specifically, the first diode, the second diode, the third diode and the fourth diode all play a role in protection, so that the fault reverse power transmission of the local processor and the complementary processor is prevented.
As a preferable scheme, the local processor outputs a local alarm signal according to the first state signal, the second state signal and the state signal of the engineering vehicle operation section starting switch, and the complementary processor outputs a complementary alarm signal according to the first state signal, the second state signal and the state signal of the engineering vehicle non-operation section starting switch.
Preferably, the reconnection protection device further includes: the local voice alarm is electrically connected with the local processor and is used for outputting and converting an error alarm according to the local alarm signal; and/or a local warning lamp, which is electrically connected with the local processor and is used for giving out a lamplight alarm according to the local warning signal.
Specifically, the local processor judges whether the conversion of the reconnection valve is correct according to the received first state signal detected and output by the conversion state detection switch of the local reconnection valve, the second state signal detected and output by the conversion state detection switch of the complementary reconnection valve and the state signal of the starting switch of the operating section of the engineering truck through a control logic relation, when the conversion is incorrect, the local processor sends a local alarm signal to a local voice alarm, the local voice alarm sends a voice alarm 'reconnection conversion error', and/or the local processor sends a local alarm signal to a local alarm lamp, and the local alarm lamp sends a lamplight alarm according to the alarm.
Preferably, the reconnection protection device further includes: the repairing machine voice alarm is electrically connected with the repairing machine processor and is used for outputting a conversion error alarm according to the repairing machine alarm signal; and/or the repairing machine warning lamp is electrically connected with the repairing machine processor and used for sending out a light alarm according to the repairing machine warning signal to prompt an operator.
Specifically, the repairing machine processor judges whether the conversion of the reconnection valve is correct according to the received first state signal detected and output by the local reconnection valve conversion state detection switch, the second state signal detected and output by the repairing machine reconnection valve conversion state detection switch and the state signal of the non-operation section starting switch of the engineering truck through a control logic relation, when the conversion is incorrect, the repairing machine processor sends a repairing machine alarm signal to the repairing machine voice alarm, the repairing machine voice alarm sends a voice alarm 'reconnection conversion error', and/or the repairing machine processor sends a repairing machine alarm signal to the repairing machine alarm lamp, and the repairing machine alarm lamp sends a lamplight alarm according to the alarm.
As a preferred scheme, when the first state signal is a local position signal, the second state signal is a complementary position signal, the state signal of the engineering vehicle operation section starting switch is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch is a non-starting signal, the local processor outputs a local control signal, and the complementary processor outputs a complementary control signal;
when the first state signal is a complementary machine position signal, the second state signal is a complementary machine position signal, the state signal of the engineering vehicle operation section starting switch is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch is a non-starting signal, the local processor outputs a local alarm signal, and the complementary machine processor outputs a complementary machine alarm signal;
When the first state signal is a local position signal, the second state signal is a local position signal, the state signal of an engineering vehicle operation section starting switch is a starting signal, and the state signal of an engineering vehicle non-operation section starting switch is a non-starting signal, the local processor outputs a local alarm signal, and the complementary processor outputs the complementary alarm signal;
when the first state signal is a complementary machine position signal, the second state signal is a local machine position signal, the state signal of the engineering vehicle operation section starting switch is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch is a non-starting signal, the local processor outputs a local alarm signal, and the complementary machine processor outputs a complementary machine alarm signal.
Taking the local processor as an example, taking a state signal of an operation section starting switch of the engineering truck as a signal 101 point, wherein the local reconnection valve switching state detected by a local reconnection valve switching state detection switch is a signal 102 point, and the complementary reconnection valve switching state detected by a complementary reconnection valve switching state detection switch is a signal 103 point.
Taking a complementary machine processor as an example, taking a state signal of a non-operation section starting switch of the engineering truck as a signal 101 point, wherein the complementary machine reconnection valve switching state detected by a complementary machine reconnection valve switching state detection switch is a signal 102 point, and the local reconnection valve switching state detected by a local reconnection valve switching state detection switch is a signal 103 point.
101—the own engine and the complementary engine identifying signal, the state signal of the engine starting switch of the operating section is used as the own engine identifying signal, the state signal of the engine starting switch of the non-operating section is used as the complementary engine identifying signal, the operating section is also called the own engine, the non-operating section is also called the complementary engine, the operating section, namely the own engine 101 point is at a high level, and the non-operating section, namely the complementary engine 101 point is at a low level.
102. 103-state signals of a conversion state detection switch of the local reconnection valve and a conversion state detection switch of the complementary machine reconnection valve, wherein when the local reconnection valve is in a local position, the conversion state detection switch of the local reconnection valve is closed, the corresponding state signals are high level, and when the local reconnection valve is in a complementary machine position, the conversion state detection switch of the local reconnection valve is opened, and the corresponding state signals are low level; when the auxiliary machine reconnection valve is in the local position, the auxiliary machine reconnection valve switching state detection switch is closed, the corresponding state signal is high level, and when the auxiliary machine reconnection valve is in the auxiliary machine position, the auxiliary machine reconnection valve switching state detection switch is opened, and the corresponding state signal is low level.
Description of principle:
(1) In the stand-alone mode: when the engineering truck single machine operates, namely the operation node starting switch is in a starting state, the corresponding state signal 101 point is in a high level, the local reconnection valve is in a local position, the local reconnection valve conversion state detection switch is closed, the corresponding state signal 102 point is in a high level, and reconnection is not performed, so that the complementary reconnection valve conversion state detection switch corresponds to the state signal 103 point to be in a low level, at the moment, the local processor outputs a local control signal to the local contactor, at the moment, the local contactor is electrified, the normally open contact of the local contactor is closed, and the engineering truck can walk. If the local reconnection valve is not converted into the local position at the moment, the operation node starting switch is in a starting state, the corresponding state signal 101 point is in a high level, the local reconnection valve conversion state detection switch is disconnected, the corresponding state signal 102 point is in a low level, and reconnection is not performed, so that the local processor outputs a local alarm signal according to the control logic relation, the local contactor is not powered on, the normally open contact of the local contactor is in a disconnection state, and the engineering truck cannot run.
(2) Reconnection mode:
case 1: the machine and the repairing machine reconnection valve are correctly switched, an operation node starting switch is in a starting state, a corresponding state signal 101 point is in a high level, the machine reconnection valve is in a local position, a corresponding state signal 102 point is in a high level, the repairing machine reconnection valve is in a repairing machine position, the repairing machine reconnection valve switching state detecting switch is switched off, a corresponding state signal 103 point is in a low level, namely, a machine processor receives 101 points and 102 points and 103 points are in a high level, the machine processor outputs a machine control signal to a machine contactor to enable the machine contactor to be powered on, a normally open contact of the machine contactor is closed, a traveling system of the machine engine is started, and an engineering truck can travel; at this time, the non-operation section starting switch of the non-operation vehicle is in a non-starting state, the corresponding state signal 101 is in a low level, the complementary reconnection valve is in a complementary position, the complementary reconnection valve conversion state detection switch is opened, the corresponding state signal 102 is in a low level, the local reconnection valve is in a local position, at this time, the local reconnection valve conversion state detection switch is closed, the corresponding state signal 103 is in a high level, namely, the complementary processor receives the signal 101 as a low level, the signal 102 is in a low level and the signal 103 is in a high level, according to a logic control relation, the complementary processor outputs a complementary control signal to the complementary contactor to enable the complementary contactor to be powered on, the normally open contact of the complementary contactor is closed, a running system of the complementary engine is started, and the reconnection vehicle is movable.
Case 2: the two reconnection valves of the reconnection are both set at the 'machine supplementing position', at the moment, for an operating vehicle, an operation node starting switch is in a starting state, a corresponding state signal 101 point is in a high level, the local reconnection valve conversion state detection switch is disconnected, a corresponding state signal 102 point is in a low level, the complementary reconnection valve is in the machine supplementing position, the complementary reconnection valve conversion state detection switch is disconnected, a corresponding state signal 103 point is in a low level, a local processor receives 101 points to be in a high level, 102 points to be in a low level, and 103 points to be in a low level, and according to a logic control relation, the local processor outputs a local alarm signal to a local voice alarm, so that the local voice alarm outputs a 'reconnection conversion error', and simultaneously outputs the local alarm signal to a local alarm lamp to control the local alarm lamp to flash and remind an operator of the conversion error of the reconnection valve.
For a non-operating vehicle, a non-operating section starting switch is in a non-starting state, a corresponding state signal 101 point is in a low level, a complementary machine reconnection valve is in a complementary machine position, a complementary machine reconnection valve conversion state detection switch is disconnected, a corresponding state signal 102 point is in a low level, a local reconnection valve is in a complementary machine position, a local reconnection valve conversion state detection switch is disconnected, a corresponding state signal 103 point is in a low level, a complementary machine processor receives the signal 101 point which is in the low level, the signal 102 point is in the low level, the signal 103 point is in the low level, and according to a logic control relation, the complementary machine processor outputs a complementary machine alarm signal to a complementary machine voice alarm, so that the complementary machine voice alarm outputs a 'reconnection conversion error', and meanwhile outputs a complementary machine alarm signal to a complementary machine alarm lamp, the complementary machine alarm lamp is controlled to flash, and an operator is reminded of the conversion error of the reconnection valve.
And the normally open contacts of the local contactor and the complementary contactor are disconnected, so that the vehicle cannot run.
Case 3: the two-vehicle reconnection valves of the reconnection are both arranged at a 'local position': at this time, for the operating vehicle, the operation node starting switch is in a starting state, the corresponding state signal 101 point is in a high level, the local reconnection valve is in a local position, the local reconnection valve conversion state detection switch is closed, the corresponding state signal 102 point is in a high level, the complementary reconnection valve is in a local position, the complementary reconnection valve conversion state detection switch is closed, the corresponding state signal 103 point is in a high level, the local processor receives the signal 101 point and the signal 102 point is in a high level, the signal 103 point is in a high level, and according to a logic control relation, the local processor outputs a local alarm signal to a local voice alarm, so that the local voice alarm outputs a reconnection conversion error through voice, and simultaneously outputs a local alarm signal to a local alarm lamp, controls the local alarm lamp to flash to remind an operator of the conversion error of the reconnection valve.
For a non-operating vehicle, a non-operating section starting switch is in a non-starting state, a corresponding state signal 101 point is in a low level, a complementary machine reconnection valve is in a local position, a complementary machine reconnection valve conversion state detection switch is closed, a corresponding state signal 102 point is in a high level, a local reconnection valve is in a local position, a local reconnection valve conversion state detection switch is closed, a corresponding state signal 103 point is in a high level, a complementary machine processor receives the signal 101 point which is in a low level, the signal 102 point is in a high level, and the signal 103 point is in a high level, and according to a logic control relation, the complementary machine processor outputs a complementary machine alarm signal to a complementary machine voice alarm, so that the complementary machine voice alarm outputs a 'reconnection conversion error', and meanwhile outputs a complementary machine alarm signal to a complementary machine alarm lamp, the complementary machine alarm lamp is controlled to flash, and an operator is reminded of the conversion error of the reconnection valve.
And the normally open contacts of the local contactor and the complementary contactor are disconnected, so that the vehicle cannot run.
Case 4: the operating vehicle is the local reconnection valve to be set at the 'machine position', and the non-operating vehicle is the local reconnection valve to be set at the 'machine position': at this time, for the operation vehicle, the operation node starting switch is in a starting state, the corresponding state signal 101 point is in a high level, the local reconnection valve is in a supplementary position, the local reconnection valve conversion state detection switch is turned off, the corresponding state signal 102 point is in a low level, the supplementary reconnection valve is in a local position, the supplementary reconnection valve conversion state detection switch is turned on, the corresponding state signal 103 point is in a high level, the local processor receives the signal 101 point which is in a high level, the signal 102 point is in a low level, the signal 103 point is in a high level, and according to a logic control relation, the local processor outputs a local alarm signal to a local voice alarm, so that the local voice alarm outputs a reconnection conversion error, and simultaneously outputs a local alarm signal to a local alarm lamp to control the flashing of the local alarm lamp so as to remind an operator of the conversion error of the reconnection valve.
For a non-operating vehicle, a non-operating section starting switch is in a non-starting state, a corresponding state signal 101 point is in a low level, a complementary machine reconnection valve is in a local position, a complementary machine reconnection valve conversion state detection switch is closed, a corresponding state signal 102 point is in a high level, the local reconnection valve is in a complementary machine position, the local reconnection valve conversion state detection switch is opened, a corresponding state signal 103 point is in a low level, a complementary machine processor receives the signal 101 point which is in the low level, the signal 102 point is in the high level, the signal 103 point is in the low level, and according to a logic control relation, the complementary machine processor outputs a complementary machine alarm signal to a complementary machine voice alarm, so that the complementary machine voice alarm outputs a 'reconnection conversion error', and meanwhile outputs a complementary machine alarm signal to a complementary machine alarm lamp, the complementary machine alarm lamp is controlled to flash, and an operator is reminded of the conversion error of the reconnection valve.
And the normally open contacts of the local contactor and the complementary contactor are disconnected, so that the vehicle cannot run.
Therefore, an operator has to correctly switch the change-over switch of the local reconnection valve and the change-over switch of the complementary reconnection valve, and the engineering vehicle can only run.
Preferably, the reconnection protection device further includes: the local fault isolating switch is arranged between the local processor and the power supply.
Specifically, the local fault isolation switch is used for manually releasing fault alarms of the local voice alarm and the local alarm lamp.
Preferably, the reconnection protection device further includes: the repairing machine fault isolating switch is arranged between the repairing machine processor and the power supply.
Specifically, the repairing machine fault isolating switch is used for manually releasing the repairing machine voice alarm and the repairing machine warning lamp from fault alarming.
As an optimal scheme, the local reconnection valve switching state detection switch and the complementary reconnection valve switching state detection switch are travel switches.
Preferably, the local contactor and the complementary contactor are normally open contactors.
Specifically, after receiving the instruction of the local processor, the local contactor obtains to electrically control the normally open contact to be closed as a condition for starting the local engine, and after receiving the instruction of the complementary processor, the complementary contactor obtains to electrically control the normally open contact to be closed as a condition for starting the complementary engine.
As a preferable scheme, the switching state detection switch of the local reconnection valve is arranged on a first mounting plate, and the first mounting plate is fixedly connected with a switching valve part of the local reconnection valve; the changeover state detection switch of the repairing machine reconnection valve is arranged on a second mounting plate, and the second mounting plate is fixedly connected to the changeover valve part of the repairing machine reconnection valve.
Specifically, a travel switch is additionally arranged at the switching valve part of the local reconnection switching valve, the travel switch is arranged on a first mounting plate, the first mounting plate is fixed on the local reconnection valve mounting and changing valve part through bolts, a travel switch is additionally arranged at the switching valve part of the complementary reconnection switching valve, the travel switch is arranged on a second mounting plate, and the second mounting plate is fixed on the complementary reconnection valve mounting and changing valve part through bolts. The travel switch selects LX19-001A, the travel switch is connected with a circuit, the travel of 7mm of the local position and the complementary position of the plunger is converted by utilizing the reconnection, and the travel switch is jacked by a jackrod to realize the on-off of the circuit.
Example 1
Fig. 1 shows a schematic diagram of an engineering vehicle brake reconnection protection device according to an embodiment of the present invention.
As shown in fig. 1, the heavy-duty protection device for an engineering vehicle brake comprises:
the system comprises a local reconnection valve conversion state detection switch 1 and a complementary reconnection valve conversion state detection switch 2, wherein the local reconnection valve conversion state detection switch 1 is used for detecting the conversion state of a local reconnection valve to output a first state signal, and the complementary reconnection valve conversion state detection switch 2 is used for detecting the conversion state of a complementary reconnection valve to output a second state signal;
The system comprises a local processor 3 and a complementary processor 4, wherein the local processor 3 is respectively and electrically connected with a local reconnection valve conversion state detection switch 1, a complementary reconnection valve conversion state detection switch 2 and an engineering vehicle operation section starting switch 18 to receive a first state signal, a second state signal and a state signal of the engineering vehicle operation section starting switch 18 and correspondingly output local control signals, and the complementary processor 4 is respectively and electrically connected with the local reconnection valve conversion state detection switch 1, the complementary reconnection valve conversion state detection switch 2 and an engineering vehicle non-operation section starting switch 19 to receive the first state signal, the second state signal and a state signal of the engineering vehicle non-operation section starting switch 19 and correspondingly output complementary control signals;
the local contactor KM1 and the complementary machine contactor KM2 are connected with the local processor 3 and the local engine 15 and used for receiving local control signals and correspondingly starting the local engine 15, and the complementary machine contactor KM2 is electrically connected with the complementary machine processor 4 and the complementary machine engine 16 and used for receiving complementary machine control signals and correspondingly starting the complementary machine engine 16.
Wherein, reconnection protection device still includes: the first diode 5 is arranged between the local processor 3 and the local reconnection valve switching state detection switch 1; the second diode 6 is arranged between the repairing machine processor 4 and the local reconnection valve switching state detection switch 1; the third diode 8 is arranged between the repairing machine processor 4 and the repairing machine reconnection valve conversion state detection switch 2; the fourth diode 7, the fourth diode 7 is located between local treater 3 and the changeover state detection switch 2 of the reconnection valve of mending machine.
The local processor 3 outputs a local alarm signal according to the first state signal, the second state signal and the state signal of the engineering vehicle operation section starting switch 18, and the complementary processor 4 outputs a complementary alarm signal according to the first state signal, the second state signal and the state signal of the engineering vehicle non-operation section starting switch 19.
Wherein, reconnection protection device still includes: the local voice alarm 9 is electrically connected with the local processor 3 and is used for outputting and converting an error alarm according to a local alarm signal; and/or the local warning lamp 10, the local warning lamp 10 is electrically connected with the local processor 3, and is used for sending out a light alarm according to a local alarm signal.
Wherein, reconnection protection device still includes: the repairing machine voice alarm 11 is electrically connected with the repairing machine processor 4 and is used for outputting a conversion error alarm according to the repairing machine alarm signal; and/or the make-up warning lamp 12, make-up warning lamp 12 is connected with make-up processor 4 electricity, is used for sending out the light alarm according to the make-up alarm signal, suggestion operating personnel.
Wherein, reconnection protection device still includes: the local fault isolation switch 13, the local fault isolation switch 13 is arranged between the local processor 3 and the power supply 17.
Wherein, reconnection protection device still includes: the repairing machine fault isolating switch 14, wherein the repairing machine fault isolating switch 14 is arranged between the repairing machine processor 4 and the power supply 17.
The local reconnection valve switching state detection switch 1 and the complementary reconnection valve switching state detection switch 2 are travel switches.
The switching state detection switch 1 of the local reconnection valve is arranged on a first mounting plate 20, and the first mounting plate 20 is fixedly connected with a switching valve part of the local reconnection valve; the changeover state detection switch 2 of the repairing machine reconnection valve is arranged on a second mounting plate, and the second mounting plate is fixedly connected with the changeover valve part of the repairing machine reconnection valve.
The local contactor KM1 and the complementary contactor KM2 are normally open contactors.
When the first state signal is a local position signal, the second state signal is a complementary position signal, the state signal of the engineering vehicle operation section starting switch 18 is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch 19 is a non-starting signal, the local processor outputs a local control signal, and the complementary processor outputs a complementary control signal;
when the first state signal is a complementary machine position signal, the second state signal is a complementary machine position signal, the state signal of the engineering vehicle operation section starting switch 18 is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch 19 is a non-starting signal, the local processor outputs a local alarm signal, and the complementary machine processor outputs a complementary machine alarm signal;
When the first state signal is a local position signal, the second state signal is a local position signal, the state signal of the engineering vehicle operation section starting switch 18 is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch 19 is a non-starting signal, the local processor outputs a local alarm signal, and the complementary processor outputs the complementary alarm signal;
when the first state signal is the repairing machine position signal, the second state signal is the local position signal, the state signal of the engineering vehicle operation section starting switch 18 is the starting signal, and the state signal of the engineering vehicle non-operation section starting switch 19 is the non-starting signal, the local processor outputs the local alarm signal, and the repairing machine processor outputs the repairing machine alarm signal.
Fig. 2 shows a processor control logic relationship diagram of an engineering vehicle brake reconnection protection device according to an embodiment of the present invention.
The local processor and the complementary processor judge whether the reconnection valve is correctly converted according to the control logic relation shown in the figure 2, and if the conversion is correct, a control signal is output to the corresponding contactor, so that the corresponding contactor is electrified, the normally open contact is closed, and the corresponding engine is controlled to start to walk; if the conversion is incorrect, an alarm signal is output to the corresponding voice alarm, so that the corresponding voice alarm outputs voice 'reconnection conversion error', and/or an alarm signal is output to the corresponding alarm lamp, so that the corresponding alarm lamp flashes.
Fig. 3 is a diagram showing an installation structure of a reconnection valve changeover state detection switch of an engineering vehicle brake reconnection protection apparatus according to an embodiment of the present invention.
As shown in fig. 3, taking the local reconnection valve switching state detection switch as an example, the local reconnection valve switching state detection switch is mounted on a first mounting plate, and the first mounting plate is fixed on a main machine reconnection valve switching valve section.
The working process of the heavy-duty truck brake protection device is as follows: the local processor 3 receives a first state signal from the local reconnection valve conversion state detection switch 1, a second state signal from the complementary reconnection valve conversion state detection switch 2 and a state signal of the engineering vehicle operation section starting switch 18, and according to a signal control logic relationship, if the reconnection conversion valve is correctly converted, the local processor 3 outputs a local control signal to the local contactor KM1, so that the local contactor KM1 is electrified, a normally open contact of the local contactor KM1 is closed, and a running system of the local engine 15 is started; the repairing machine processor 4 receives a first state signal from the repairing machine reconnection valve conversion state detection switch 1, a second state signal from the repairing machine reconnection valve conversion state detection switch 2 and a state signal of the engineering vehicle non-operation section starting switch 19, and according to a signal control logic relationship, if the reconnection conversion valve is correctly converted, the repairing machine processor 4 outputs a repairing machine control signal to the repairing machine contactor KM2, so that the repairing machine contactor KM2 is electrified, a normally open contact of the repairing machine contactor KM2 is closed, and a running system of the repairing machine engine 16 is started.
The local processor 3 receives a first state signal from the local reconnection valve conversion state detection switch 1, a second state signal from the complementary reconnection valve conversion state detection switch 2 and a state signal of the engineering vehicle operation section starting switch 18, and according to the signal control logic relationship, if the reconnection conversion valve is incorrectly converted, the local processor 3 outputs a local alarm signal to the local voice alarm 9, so that the local voice alarm 9 outputs voice 'reconnection conversion error', and/or the local processor 3 outputs a local alarm signal to the local alarm lamp 10, and the local alarm lamp 10 controls the lamp to flash according to the alarm signal so as to prompt a worker; the repairing machine processor 4 receives a first state signal from the local reconnection valve conversion state detection switch 1, a second state signal from the repairing machine reconnection valve conversion state detection switch 2 and a state signal of the engineering vehicle non-operation section starting switch 19, and according to the signal control logic relationship, if the reconnection conversion valve is incorrectly converted, the repairing machine processor 4 outputs a repairing machine alarm signal to the repairing machine voice alarm 11, so that the repairing machine voice alarm 11 outputs voice 'reconnection conversion error', and/or the repairing machine processor 4 outputs a repairing machine alarm signal to the repairing machine alarm lamp 12, and the repairing machine alarm lamp 12 controls the lamp to flash according to the alarm signal so as to prompt a worker.
The embodiments of the present invention have been described above, the description is illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims (8)

1. The utility model provides a heavy allies oneself with protection device of engineering truck brake machine which characterized in that, heavy allies oneself with protection device includes:
the system comprises a local reconnection valve conversion state detection switch and a complementary reconnection valve conversion state detection switch, wherein the local reconnection valve conversion state detection switch is used for detecting the conversion state of a local reconnection valve to output a first state signal, and the complementary reconnection valve conversion state detection switch is used for detecting the conversion state of a complementary reconnection valve to output a second state signal;
the system comprises a local processor and a complementary processor, wherein the local processor is respectively and electrically connected with a local reconnection valve conversion state detection switch, a complementary reconnection valve conversion state detection switch and an engineering vehicle operation section starting switch to receive the first state signal, the second state signal and the state signal of the engineering vehicle operation section starting switch and correspondingly output a local control signal, and the complementary processor is respectively and electrically connected with the local reconnection valve conversion state detection switch, the complementary reconnection valve conversion state detection switch and the engineering vehicle non-operation section starting switch to receive the first state signal, the second state signal and the state signal of the engineering vehicle non-operation section starting switch and correspondingly output a complementary control signal;
The local contactor is electrically connected with the local processor and the local engine and is used for receiving the local control signal and correspondingly starting the local engine, and the complementary contactor is electrically connected with the complementary processor and the complementary engine and is used for receiving the complementary engine control signal and correspondingly starting the complementary engine;
the system comprises a local fault isolation switch and a complementary fault isolation switch, wherein the local fault isolation switch is arranged between a local processor and a power supply; the repairing machine fault isolating switch is arranged between the repairing machine processor and the power supply;
when the first state signal is a local position signal, the second state signal is a complementary machine position signal and the state signal of the engineering vehicle operation section starting switch is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch is a non-starting signal, the local processor outputs the local control signal, and the complementary machine processor outputs the complementary machine control signal;
when the first state signal is a complementary machine position signal, the second state signal is a complementary machine position signal, the state signal of the engineering vehicle operation section starting switch is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch is a non-starting signal, the local processor outputs a local alarm signal, and the complementary machine processor outputs a complementary machine alarm signal;
When the first state signal is a local position signal, the second state signal is a local position signal, the state signal of the engineering vehicle operation section starting switch is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch is a non-starting signal, the local processor outputs the local alarm signal, and the complementary processor outputs the complementary alarm signal;
when the first state signal is a complementary machine position signal, the second state signal is a local machine position signal, the state signal of the engineering vehicle operation section starting switch is a starting signal, and the state signal of the engineering vehicle non-operation section starting switch is a non-starting signal, the local processor outputs the local alarm signal, and the complementary machine processor outputs the complementary machine alarm signal.
2. The reconnection protection device according to claim 1, further comprising:
the first diode is arranged between the local processor and the local reconnection valve conversion state detection switch;
the second diode is arranged between the make-up machine processor and the local reconnection valve conversion state detection switch;
The third diode is arranged between the complementary machine processor and the complementary machine reconnection valve conversion state detection switch;
and the fourth diode is arranged between the local processor and the changeover state detection switch of the auxiliary machine reconnection valve.
3. The reconnection protection device according to claim 1, wherein the local processor outputs a local alarm signal according to the first status signal, the second status signal and the status signal of the engineering vehicle operation section starting switch, and the complementary processor outputs a complementary alarm signal according to the first status signal, the second status signal and the status signal of the engineering vehicle non-operation section starting switch.
4. The reconnection protection device according to claim 3, further comprising:
the local voice alarm is electrically connected with the local processor and is used for outputting and converting an error alarm according to the local alarm signal; and/or
The local warning lamp is electrically connected with the local processor and is used for sending out a lamplight alarm according to the local warning signal.
5. The reconnection protection device according to claim 3, further comprising:
the repairing machine voice alarm is electrically connected with the repairing machine processor and is used for outputting and converting an error alarm according to the repairing machine alarm signal; and/or
The repairing machine warning lamp is electrically connected with the repairing machine processor and used for sending out a light alarm according to the repairing machine alarm signal.
6. The reconnection protection device according to claim 1, wherein the local reconnection valve changeover state detection switch and the complementary reconnection valve changeover state detection switch are both travel switches.
7. The reconnection protection device according to claim 6, wherein,
the local reconnection valve switching state detection switch is arranged on a first mounting plate, and the first mounting plate is fixedly connected to a switching valve part of the local reconnection valve;
the changeover state detection switch of the repairing machine reconnection valve is arranged on a second mounting plate, and the second mounting plate is fixedly connected to the changeover valve part of the repairing machine reconnection valve.
8. The reconnection protection device of claim 1, wherein the local contactor and the complementary contactor are both normally open contactors.
CN201811269358.9A 2018-10-29 2018-10-29 Heavy-duty truck brake reconnection protection device Active CN109435934B (en)

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CN105137959A (en) * 2015-07-24 2015-12-09 南车株洲电力机车有限公司 Unlocking detection circuit and unlocking detection method
CN105172830A (en) * 2015-08-31 2015-12-23 南车株洲电力机车有限公司 Warning method and system for locomotive brake system
CN106274967A (en) * 2016-08-16 2017-01-04 中车株洲电力机车有限公司 A kind of nothing fire loopback monitor control system of locomotive

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08290765A (en) * 1995-04-20 1996-11-05 Nabco Ltd Brake control device for rolling stock
CN204110062U (en) * 2014-09-11 2015-01-21 南车株洲电力机车有限公司 A kind of locomotive brake gear is from moving end transfer device
CN204605852U (en) * 2015-02-04 2015-09-02 北京纵横机电技术开发公司 Wireless heavy state monitoring apparatus
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