CN102755706B - One-key control system for power takeoff device - Google Patents
One-key control system for power takeoff device Download PDFInfo
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- CN102755706B CN102755706B CN201210262899.5A CN201210262899A CN102755706B CN 102755706 B CN102755706 B CN 102755706B CN 201210262899 A CN201210262899 A CN 201210262899A CN 102755706 B CN102755706 B CN 102755706B
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Abstract
The invention discloses a one-key control system for a power takeoff device, which belongs to the technical field of fire-fighting vehicle control systems. The one-key control system is characterized in that: the gear-disengagement and engagement output ports of a one-key ganged switch are used for establishing a gear-disengagement and engagement control circuit together with a gear-engagement and disengagement electromagnetic valve of the power takeoff device and a cylinder of the power takeoff device, and for establishing a clutch downlink control circuit together with a clutch downlink electromagnetic valve, a clutch downlink cylinder and a clutch exhaust electromagnetic valve, so that mechanical automatic operation of a series of actions such as opening and closing of a water inlet valve, treading and releasing of a clutch pedal, gear-disengagement and engagement of the power takeoff device and the like can be simulated manually, and the aims of accurately controlling and operating a water pump of a fire-fighting vehicle with one key are fulfilled; the one-key control system has the characteristics of convenience and rapidness for operating, stable system, reliable work, high safety, high practicability and the like; gear engagement of the power takeoff device can be controlled and running of a fire control water pump can be started up without four seconds, the water discharging time can be advanced by 2-3 minutes, previous time is won for fire extinguishing and rescuing, and the application efficiency of fire-fighting vehicle equipment is increased; and meanwhile, the one-key control system has the characteristics of easiness for installing, low comprehensive cost, long service life, and the like.
Description
Technical field
The invention belongs to fire fighting truck control system technical field, be specifically related to a kind of power takeoff one key control system that the vehicle-mounted fire pump running of fire fighting truck is controlled that is applicable to.
Background technology
Power takeoff is one group of change-speed gearing, it is an independent gear in fire fighting truck gearbox, hang up this shelves, one open out, the water pump of fire fighting truck just can turn round, the extra power that water pump needs is obtained from engine by power takeoff, the fundamental procedure of the water pump operating system of fire-fighting vehicle be start fire fighting truck, step on clutch, hang up water pump power takeoff, bleed off clutch, pump working, what fire fighting truck adopted is the structure of trailing water pumping system, water pump control panel is arranged on the rear portion of vehicle, but the de-power takeoff of hanging of fire fighting truck all needs manually driving in-house operation realization, when needs are hung power takeoff and de-power takeoff, all need employment to remove driver's cabin stepping on clutch pedal, make clutch separation, thereby the extension of realizing power takeoff is de-, makes fire pump running or stop, therefore, when fire-fighting vehicle is when carrying out fire fighting and rescue, operating personnel first must be on the guidance panel at fire-fighting vehicle rear portion first turn back to the indoor combination water pump of vehicle drive in conjunction with air compressor machine and tank to the valve of pump again, and then get off on rear operating panel, open the throttle until two pointer Pressure gauge just can water outlet fire extinguishing during to 0.85Mpa, the operation of running so back and forth, can stop over the time of the place ahead water outlet, return driver and caused numerous inconvenience, fast changing fire, the time of breaking out of fire take second as, can early go out the water in a second, the property of retrieving or life cannot be estimated, the troublesome operation process of this conventional mode of operation, the best that may incur loss through delay fire fighting and rescue is actual, reduced to a certain extent accident disposing capacity.In addition, the operator scheme of existing water pump operating system is brought many hidden danger to the normal use of fire pump, before fire pump work, first must guarantee to fill with water in pump chamber, the time of empty pump operation can not be over two minutes, thereby this operator scheme can cause water pump, dry grinding causes water pump abnormal damage, during pump working, water pot to the valve of water pump in closed condition, if water pump vane is suddenly opened water pot water intaking valve in the situation that of high speed rotating, because current have percussion to the impeller of water pump, can cause water to impeller abnormal damage, and the current that enter suddenly pump can form the high pressure of moment under the water pump vane moment drive of High Rotation Speed, the stifle of each pipeline of water pump is formed to powerful water hammer power, each stifle of pipeline is because the effect of water hammer power causes stifle damage, even can cause pipeline breaking, Pressure gauge damages, moreover, suddenly it is minimum that the current that enter pump can be down to impeller rotation within the shortest time, the engine of vehicle and gearbox moment become load by zero load, can cause gearbox gear inordinate wear, engine operating condition is abnormal, conventional mode of operation easily causes the infringement to the main body of fire-fighting vehicle water pump and associated ping, also be there is to infringement in various degree in the engine of vehicle and gearbox.
Summary of the invention
The present invention is intended to utilize the on-delay function of relay and the design of the operation characteristic of cylinder piston that a kind of power takeoff one key control system technical scheme is provided, the mechanical automation that simulation manually realizes a series of actions such as water intaking valve folding, clutch pedal are stepped on and lifted, de-extensions of power takeoff operates, realize that fire engine water-pump is precisely controlled, the object of operating in a key, to overcome problems of the prior art.
Described power takeoff one key control system, comprise vehicle-mounted fire pump guidance panel and Firefighting Pump Control general supply, gas receiver, it is characterized in that: first port of export of described gas receiver is hung magnetic valve connection out of supply through power takeoff power takeoff cylinder is set, power takeoff cylinder the place ahead arranges gear engagement sensor, power takeoff hang the engage a gear of magnetic valve out of supply, blowing mouth out of supply respectively with power takeoff cylinder between pipeline be connected, and with the connecting line of engage a gear blowing mouth on be equipped with gas circuit pressure sensor; Second port of export of gas receiver is set up pipeline through clutch downlink electrical magnet valve with the descending cylinder of clutch, clutch exhaust magnetic valve with magnetite and is connected, and on the descending cylinder of clutch, connects travel switch is set; On described fire pump guidance panel, install the key ganged switch being connected with Firefighting Pump Control general supply circuit is set, the engage a gear delivery outlet of one key ganged switch is set up circuit link circuit through five-way electricity delay switch and clutch downlink electrical magnet valve, hangs magnetic valve out of supply and sets up circuit link circuit simultaneously through travel switch, the 3rd energising delay switch, power takeoff; The engage a gear delivery outlet of one key ganged switch is set up circuit link circuit through gas circuit pressure sensor, four-way electricity delay switch, clutch exhaust magnetic valve; The delivery outlet out of supply of one key ganged switch is set up circuit link circuit through the second on-delay switch and clutch downlink electrical magnet valve, simultaneously through the first on-delay switch hang magnetic valve out of supply with power takeoff respectively, clutch exhaust magnetic valve is set up circuit and is connected.
Described power takeoff one key control system, it is characterized in that the first described on-delay switch, the second on-delay switch, the 3rd energising delay switch, four-way electricity delay switch, five-way electricity delay switch has identical circuit connection structure, by the energization delay relay with eight pins, formed, by pin 1, pin 7, the connectivity port I that pin 8 circuit connect and compose is as the input of described on-delay switch, by pin 3, the connectivity port OA that pin 6 circuit connect and compose is as the first output of described on-delay switch, by pin 4, the connectivity port OB that pin 5 circuit connect and compose is as the second output of described on-delay switch, the connectivity port D that pin 2 forms is the earth terminal of described on-delay switch, the conduction time of the first described output is predeterminable, conduction time, preset range was 0.5～3.5 second, the second described output is delay power output.
Described power takeoff one key control system, it is characterized in that the descending gas port of the descending cylinder of described clutch and delivery outlet, the clutch exhaust magnetic valve input port of clutch downlink electrical magnet valve set up respectively pipeline and connect, the input port of clutch downlink electrical magnet valve is connected with gas receiver pipeline, the porting of the descending cylinder of clutch is equipped with silencer, and the outlet of clutch exhaust magnetic valve is equipped with choke valve.
Described power takeoff one key control system, is characterized in that the piston base connection of the descending cylinder of described clutch arranges magnetite, and travel switch connection is arranged on the descending cylinder exterior bottom of clutch.
Described power takeoff one key control system, is characterized in that the engage a gear of a described key ganged switch, delivery outlet out of supply set up circuit link circuit with rear entering water electromagnetic valve respectively, and rear entering water electromagnetic valve is set up gas circuit with gas receiver and is connected.
Described power takeoff one key control system, the engage a gear delivery outlet that it is characterized in that a described key ganged switch through gear mesh sensor, on-board air conditioner switch is set up circuit control connection.
Described power takeoff one key control system, the engage a gear delivery outlet that it is characterized in that a described key ganged switch is connected with five-way electricity delay switch input, and five-way electricity delay switch the first output is set up for being electrically connected to the solenoid of clutch downlink electrical magnet valve through diode; Five-way electricity delay switch the second output is connected with travel switch feeder ear, the other end of travel switch is connected with the inlet circuit of the 3rd energising delay switch, and the first output of the 3rd energising delay switch is set up for being electrically connected to the solenoid that power takeoff is hung magnetic valve out of supply.
Described power takeoff one key control system, it is characterized in that the engage a gear delivery outlet of a described key ganged switch and the feeder ear circuit of gas circuit pressure sensor are connected, the other end of gas circuit pressure sensor is connected with the inlet circuit of four-way electricity delay switch, the first output of four-way electricity delay switch is connected with the feeder ear circuit of the solenoid of clutch exhaust magnetic valve through diode, the other end ground connection of this solenoid.
Described power takeoff one key control system, the delivery outlet out of supply that it is characterized in that a described key ganged switch is connected with the input of the second on-delay switch, and second on-delay switch the first output is set up for being electrically connected to the solenoid of clutch downlink electrical magnet valve through diode; Second on-delay switch the second output is connected with the inlet circuit of the first on-delay switch, the first output of the first on-delay switch is connected with the solenoid feeder ear that power takeoff is hung magnetic valve out of supply, the other end ground connection of this solenoid, the second output of the first on-delay switch is connected with the feeder ear circuit of the solenoid of clutch exhaust magnetic valve through diode, the other end ground connection of this solenoid.
Above-mentioned power takeoff one key control system, novel, rational in infrastructure, can simulation manually realize water intaking valve folding, clutch pedal is stepped on and is lifted, the de-extension of power takeoff waits the mechanical automation operation of a series of actions, realizing fire engine water-pump precisely controls, the object of operating in a key, have easy to operate, fast, system stability, reliable operation, safe, the feature such as practical, only need to connect for 4 seconds controlled power takeoff engage a gear processed, start fire pump running, water discharging time can be accelerated 2～3 minutes than traditional operation, for fire fighting and rescue is got the valuable time, improved the effectiveness of fire-fighting vehicle equipment, advanced widely carrying out smoothly and disposing capacity of fire fighting and rescue accident, simultaneity factor also has installs simply, integrated cost is low, the features such as long service life, there is high application value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the circuit connection structure schematic diagram of described on-delay switch;
Fig. 3 is power takeoff engage a gear front clutch released state operation principle schematic diagram;
Fig. 4 is power takeoff engage a gear state operation principle schematic diagram;
Fig. 5 is clutch bonding state operation principle schematic diagram after power takeoff engage a gear;
Fig. 6 is power takeoff front clutch released state out of supply operation principle schematic diagram;
Fig. 7 is power takeoff state operation principle out of supply schematic diagram;
Fig. 8 is power takeoff rear clutch bonding state schematic diagram out of supply;
In figure: 1-Firefighting Pump Control general supply, 2-power takeoff is hung magnetic valve out of supply, 3-the first on-delay switch, 4-the second on-delay switch, 5-mono-key ganged switch, entering water electromagnetic valve after 6-, 7-the 3rd energising delay switch, 8-four-way electricity delay switch, 9-five-way electricity delay switch, 10-silencer, the descending cylinder of 11-clutch, 12-travel switch, 13-clutch downlink electrical magnet valve, 14-clutch exhaust magnetic valve, 15-on-board air conditioner switch, 16-choke valve, 17-gas receiver, 18-gear engagement sensor, 19-power takeoff cylinder, 20-gas circuit pressure sensor.
The specific embodiment
Now, in conjunction with Figure of description, describe the specific embodiment of the present invention in detail:
Be illustrated in figure 2 the circuit connection structure schematic diagram of the on-delay switch described in the present invention, relate to the first described on-delay switch 3, the second on-delay switch 4, the 3rd energising delay switch 7, four-way electricity delay switch 8, five-way electricity delay switch 9, by the energization delay relay with eight pins, formed, by pin 1, pin 7, the connectivity port I that pin 8 circuit connect and compose is as the input of described on-delay switch, by pin 3, the connectivity port OA that pin 6 circuit connect and compose is as the first output of described on-delay switch, by pin 4, the connectivity port OB that pin 5 circuit connect and compose is as the second output of described on-delay switch, the connectivity port D that pin 2 forms is the earth terminal of described on-delay switch, the conduction time of the first described output is predeterminable, conduction time, preset range was 0.5～3.5 second, the second described output is delay power output.
Be illustrated in figure 1 power takeoff one key control system, power takeoff of the present invention, clutch, Vehicular accumulator cell, vehicle-mounted fire pump guidance panel and Firefighting Pump Control general supply 1, gas receiver 17, on-board air conditioner switch 15 etc. are fire fighting truck prior art.Gas receiver 17 is provided with the outlet of two gas circuits, and wherein first port of export is set up gas piping with power takeoff cylinder 19 and is connected, and second port of export is set up gas piping and is connected with the descending cylinder 11 of clutch, clutch exhaust magnetic valve 14, piston rod operation the place ahead of power takeoff cylinder 19 is provided with gear engagement sensor 18, during engage a gear, the piston rod of power takeoff cylinder 19 moves ahead and contacts gear engagement sensor 18, gear engagement sensor 18 is connected, on the connecting line of power takeoff cylinder 19 and gas receiver 17, be equipped with power takeoff and hang magnetic valve 2 out of supply, power takeoff is hung magnetic valve 2 out of supply and is had a gas input port and engage a gear, two gas delivery ports out of supply, wherein input port is connected with gas receiver 17 pipelines, engage a gear, blowing mouth out of supply is connected with power takeoff cylinder 19 pipelines respectively, and on the connecting line of engage a gear blowing mouth and power takeoff cylinder 19, be equipped with gas circuit pressure sensor 20, the descending cylinder 11 of clutch adopts band magnet structure, its piston base is connected with magnetite, the descending cylinder 11 exterior bottom connections of clutch arrange travel switch 12, when the descent of piston of the descending cylinder 11 of clutch arrives bottom, the attraction of the magnetite that piston base is set is connected travel switch 12, and power takeoff starts engage a gear, on the connecting line of the descending cylinder 11 of clutch and gas receiver 17, be equipped with clutch downlink electrical magnet valve 13, the input port of clutch downlink electrical magnet valve 13 is connected with gas receiver 17 pipelines, the descending gas port of the descending cylinder 11 of clutch is set up respectively pipeline with delivery outlet, clutch exhaust magnetic valve 14 input ports of clutch downlink electrical magnet valve 13 and is connected, the outlet of clutch exhaust magnetic valve 14 is equipped with choke valve 16 for Exhaust Gas, and the porting of the descending cylinder 11 of clutch is equipped with silencer 10 for reducing running noises.The input that key ganged switch 5, the one key ganged switches 5 that the 1 circuit connection of Firefighting Pump Control general supply is set are installed on fire pump guidance panel supplies to be electrically connected to Firefighting Pump Control general supply 1, the engage a gear delivery outlet of one key ganged switch 5 is set up circuit link circuit through five-way electricity delay switch 9 with clutch downlink electrical magnet valve 13, hangs magnetic valve 2 out of supply and sets up circuit link circuit simultaneously through travel switch 12, the 3rd energising delay switch 7, power takeoff, wherein the input of five-way electricity delay switch 9 is connected with the engage a gear delivery outlet of a key ganged switch 5, electric delay switch 9 first outputs of five-way through diode be connected with the input of the solenoid of clutch downlink electrical magnet valve 13, the other end ground connection of this solenoid sets up circuit link circuit, five-way electricity delay switch 9 second outputs are connected with travel switch 12 feeder ears, the other end of travel switch 12 is connected with the inlet circuit of the 3rd energising delay switch 7, the first output input of hanging the solenoid of magnetic valve 2 out of supply with power takeoff of the 3rd energising delay switch 7 is connected, the other end ground connection of this solenoid and forming circuit link circuit, the engage a gear delivery outlet of one key ganged switch 5 is simultaneously through gas circuit pressure sensor 20, four-way electricity delay switch 8, clutch exhaust magnetic valve 14 is set up circuit link circuit, wherein the feeder ear of gas circuit pressure sensor 20 is connected with the engage a gear output circuit of a key ganged switch 5, the other end of gas circuit pressure sensor 20 is connected with the inlet circuit of four-way electricity delay switch 8, the first output of four-way electricity delay switch 8 is connected with the feeder ear circuit of the solenoid of clutch exhaust magnetic valve 14 through diode, the other end ground connection of this solenoid and forming circuit link circuit.The delivery outlet out of supply of one key ganged switch 5 is set up circuit link circuit through the second on-delay switch 4 with clutch downlink electrical magnet valve 13, simultaneously through the first on-delay switch 3 hang magnetic valve 2 out of supply with power takeoff respectively, clutch exhaust magnetic valve 14 is set up circuit and is connected, wherein the input of the second on-delay switch 4 is connected with the delivery outlet out of supply of a key ganged switch 5, the second on-delay switch 4 first outputs are connected with the input of the solenoid of clutch downlink electrical magnet valve 13 through diode, the other end ground connection of this solenoid and forming circuit link circuit; The second on-delay switch 4 second outputs are connected with the inlet circuit of the first on-delay switch 3, the first output of the first on-delay switch 3 is connected with the solenoid feeder ear that power takeoff is hung magnetic valve 2 out of supply, the other end ground connection of this solenoid, the second output of the first on-delay switch 3 is connected with the feeder ear circuit of the solenoid of clutch exhaust magnetic valve 14 through diode, the other end ground connection of this solenoid.
In above-described embodiment; the engage a gear of one key ganged switch 5, delivery outlet out of supply are set up circuit link circuit with rear entering water electromagnetic valve 6 respectively; guarantee that rear entering water electromagnetic valve 6 continues in power supply state; simultaneously, entering water electromagnetic valve 6 is connected with the gas circuit of setting up of gas receiver 17; by gas receiver 17, provide source of the gas for rear entering water electromagnetic valve 6; making rear entering water electromagnetic valve 6 can be fire pump make-up water source at any time as required, makes to protect fire pump.
In above-described embodiment, the engage a gear delivery outlet of one key ganged switch 5 is set up circuit control connection through gear engagement sensor 18, on-board air conditioner switch 15, to impel engine automatically to raise speed by the startup air-conditioning that turns round after power takeoff engage a gear, to avoid low engine speed load excessive and cause flame-outly, make pump working more stable simultaneously.
Power takeoff one key control system of the present invention is applied to the course of work of fire-fighting vehicle, removed the troublesome operation process of conventional mode of operation, than the fast 2-3 minute of traditional operation, advanced widely carrying out smoothly and disposing capacity of fire fighting and rescue accident, by extension power takeoff, make pump working and de-power takeoff that water pump is quit work and describe, specific as follows:
1) hang the process that power takeoff makes pump working, water supply:
The first step, power takeoff engage a gear front clutch is separated: open Firefighting Pump Control general supply 1, one key ganged switch 5 is got to engage a gear delivery outlet, electric current from Vehicular accumulator cell through Firefighting Pump Control general supply 1, the engage a gear delivery outlet of one key ganged switch 5 is received the input of five-way electricity delay switch 9, then electric current is connected clutch downlink electrical magnet valve 13 from the first output of five-way electricity delay switch 9 through diode and is made its energising, so source of the gas leads to the descending cylinder 11 of clutch from gas receiver 17 through clutch downlink electrical magnet valve 13, make the descending cylinder 11 of clutch descending, clutch separation, be preset as 2 seconds the conduction time of five-way electricity delay switch 9 first outputs, in 2 seconds of the first output energising, complete the clutch separation operation before power takeoff engage a gear, shown in Fig. 3, be power takeoff engage a gear front clutch released state,
Second step, power takeoff engage a gear: the 9 first output energising of five-way electricity delay switch disconnects for 2 seconds afterwards, the second output is connected, electric current leads to the input of the 3rd energising delay switch 7 through travel switch 12, then the first output of the 3rd energising delay switch 7 is the solenoid power supply that power takeoff is hung magnetic valve 2 out of supply, making power takeoff hang magnetic valve 2 out of supply connects, so source of the gas is hung magnetic valve out of supply 2 input ports from gas receiver 17 through power takeoff and is entered, the output of engage a gear blowing mouth, then through gas circuit pressure sensor 20, be transported to again power takeoff cylinder 19, power takeoff cylinder 19 piston rods move ahead and contact gear engagement sensor 18, make gear engagement, power takeoff hangs up, be preset as 1.4 seconds the conduction time of the first output of the 3rd energising delay switch 7, in 1.4 seconds of the first output energising of the 3rd energising delay switch 7, complete the operation of power takeoff engage a gear, Figure 4 shows that power takeoff engage a gear state,
The 3rd step, clutch combination after power takeoff engage a gear: after power takeoff engage a gear, after gas circuit pressure sensor 20 pressurizeds, connect, engage a gear delivery outlet by a key ganged switch 5 is powered, electric current is switched to four-way electricity delay switch 8 inputs through gas circuit pressure sensor 20, the first output energising of four-way electricity delay switch 8 is the solenoid power supply of clutch exhaust magnetic valve 14 by diode, clutch exhaust magnetic valve 14 is connected, gas in the descending cylinder 11 of clutch is discharged through choke valve 16, the energising Preset Time of the first output of four-way electricity delay switch 8 is 2.7 seconds, the evacuation time of choke valve 16 is about 2 seconds, the gas of the descending cylinder 11 of clutch is discharged slowly return of rear clutch pedal, on-board air conditioner switch 15 is connected by the engage a gear delivery outlet power supply of a key ganged switch 5 through gear engagement sensor 18 simultaneously, starting on-board air conditioner rear engine raises speed automatically, to avoid low engine speed to load excessive, cause flame-out, make pump working more stable simultaneously, Figure 5 shows that clutch bonding state after power takeoff engage a gear.
Operate a key ganged switch 5 and connect engage a gear delivery outlet, clutch binding operation after above-mentioned power takeoff engage a gear front clutch separation, power takeoff engage a gear, power takeoff engage a gear, the water pump system work water outlet of fire fighting truck.
2) de-power takeoff makes the out-of-work process of water pump:
The first step, power takeoff front clutch out of supply is separated: switch a key ganged switch 5 and connect delivery outlet out of supply, electric current from Vehicular accumulator cell through Firefighting Pump Control general supply 1, one key ganged switch 5 delivery outlet out of supply is switched to the second on-delay switch 4 inputs, the second on-delay switch 4 first outputs are powered and are connected clutch downlink electrical magnet valve 13 for the solenoid of clutch downlink electrical magnet valve 13 after connecting, so source of the gas leads to the descending cylinder 11 of clutch from gas receiver 17 through clutch downlink electrical magnet valve 13, make the descending cylinder 11 of clutch descending, clutch separation, be preset as 1.1 seconds the conduction time of the second on-delay switch 4 first outputs, in 1.1 seconds of the first output energising, complete power takeoff front clutch separation operation out of supply, Figure 6 shows that power takeoff front clutch released state out of supply,
Second step, power takeoff is out of supply: the energising of the second on-delay switch 4 first outputs disconnects for 1.1 seconds afterwards, the second output is connected simultaneously, the input of cause the first on-delay switch 3 is connected with the second on-delay switch 4 second outputs, the solenoid power supply of hanging magnetic valve 2 out of supply for power takeoff after the first output connection of the first on-delay switch 3, making power takeoff hang magnetic valve 2 out of supply connects, so source of the gas is hung magnetic valve out of supply 2 input ports from gas receiver 17 through power takeoff and is entered, after blowing mouth output out of supply, be transported to power takeoff cylinder 19, power takeoff cylinder 19 piston rods move ahead and contact gear engagement sensor 18, throw off meshing gear, power takeoff is out of supply, Figure 7 shows that power takeoff state out of supply, default 2.8 seconds of the conduction time of the first on-delay switch 3 first outputs, in 2.8 seconds of the first on-delay switch 3 first output energisings, complete power takeoff operation out of supply,
The 3rd step, power takeoff rear clutch combination out of supply: the first output energising of the first on-delay switch 3 disconnects for 2.8 seconds afterwards, the second output is connected simultaneously and be that the solenoid of clutch exhaust magnetic valve 14 is powered, clutch exhaust magnetic valve 14 is connected, gas in the descending cylinder 11 of clutch is discharged through choke valve 16, clutch pedal is return slowly, this process approximately needs 2 second time to complete, and Figure 8 shows that power takeoff rear clutch bonding state out of supply;
Switch a key ganged switch 5 to delivery outlet out of supply, through above-mentioned power takeoff front clutch out of supply is separated, power takeoff is out of supply, power takeoff out of supply after clutch binding operation, complete de-power takeoff and make the out-of-work operation of water pump.
Power takeoff one key control system of the present invention possesses skills advanced, simple to operate, the feature such as practical, safe and reliable, be applicable to the fire fighting truck of the extra power taking of all needs, can realize 100,000 failure-free operation, and installation is extremely simple, can have general REPSH repair shop to complete installation, cheap for manufacturing cost, after this also almost without maintenance, the recondition expense of system, there is high application value.
Claims (9)
1. power takeoff one key control system, comprise vehicle-mounted fire pump guidance panel and Firefighting Pump Control general supply (1), gas receiver (17), it is characterized in that: first port of export of described gas receiver (17) is hung magnetic valve out of supply (2) connection through power takeoff power takeoff cylinder (19) is set, power takeoff cylinder (19) the place ahead arranges gear engagement sensor (18), power takeoff is hung the engage a gear of magnetic valve out of supply (2), blowing mouth out of supply respectively with power takeoff cylinder (19) between pipeline be connected, and with on the connecting line of engage a gear blowing mouth, be equipped with gas circuit pressure sensor (20), second port of export of gas receiver (17) is set up pipeline and is connected with the descending cylinder of clutch (11), clutch exhaust magnetic valve (14) with magnetite through clutch downlink electrical magnet valve (13), and upper connection of the descending cylinder of clutch (11) arranges travel switch (12), on described fire pump guidance panel, install the key ganged switch (5) being connected with Firefighting Pump Control general supply (1) circuit is set, the engage a gear delivery outlet of one key ganged switch (5) is set up circuit link circuit through five-way electricity delay switch (9) and clutch downlink electrical magnet valve (13), hangs magnetic valve out of supply (2) and sets up circuit link circuit simultaneously through travel switch (12), the 3rd energising delay switch (7), power takeoff, the engage a gear delivery outlet of one key ganged switch (5) is set up circuit link circuit through gas circuit pressure sensor (20), four-way electricity delay switch (8), clutch exhaust magnetic valve (14), the delivery outlet out of supply of one key ganged switch (5) is set up circuit link circuit through the second on-delay switch (4) and clutch downlink electrical magnet valve (13), simultaneously through the first on-delay switch (3) hang magnetic valve out of supply (2) with power takeoff respectively, clutch exhaust magnetic valve (14) is set up circuit and is connected.
2. power takeoff one key control system as claimed in claim 1, it is characterized in that the first described on-delay switch (3), the second on-delay switch (4), the 3rd energising delay switch (7), four-way electricity delay switch (8), five-way electricity delay switch (9) has identical circuit connection structure, by the energization delay relay with eight pins, formed, by pin 1, pin 7, the connectivity port I that pin 8 circuit connect and compose is as the input of described on-delay switch, by pin 3, the connectivity port OA that pin 6 circuit connect and compose is as the first output of described on-delay switch, by pin 4, the connectivity port OB that pin 5 circuit connect and compose is as the second output of described on-delay switch, the connectivity port D that pin 2 forms is the earth terminal of described on-delay switch, the conduction time of the first described output is predeterminable, conduction time, preset range was 0.5～3.5 second, the second described output is delay power output.
3. power takeoff one key control system as claimed in claim 1, it is characterized in that the descending gas port of the descending cylinder of described clutch (11) and delivery outlet, clutch exhaust magnetic valve (14) input port of clutch downlink electrical magnet valve (13) set up respectively pipeline and connect, the input port of clutch downlink electrical magnet valve (13) is connected with gas receiver (17) pipeline, the porting of the descending cylinder of clutch (11) is equipped with silencer (10), and the outlet of clutch exhaust magnetic valve (14) is equipped with choke valve (16).
4. power takeoff one key control system as claimed in claim 1, is characterized in that the piston base connection of the descending cylinder of described clutch (11) arranges magnetite, and travel switch (12) connection is arranged on the descending cylinder of clutch (11) exterior bottom.
5. power takeoff one key control system as claimed in claim 1, it is characterized in that the engage a gear of a described key ganged switch (5), delivery outlet out of supply set up circuit link circuit with rear entering water electromagnetic valve (6) respectively, rear entering water electromagnetic valve (6) is set up gas circuit with gas receiver (17) and is connected.
6. power takeoff one key control system as claimed in claim 1, the engage a gear delivery outlet that it is characterized in that a described key ganged switch (5) through gear mesh sensor (18), on-board air conditioner switch (15) is set up circuit control connection.
7. power takeoff one key control system as claimed in claim 2, the engage a gear delivery outlet that it is characterized in that a described key ganged switch (5) is connected with five-way electricity delay switch (9) input, and five-way electricity delay switch (9) first outputs are set up for being electrically connected to the solenoid of clutch downlink electrical magnet valve (13) through diode; Five-way electricity delay switch (9) second outputs are connected with travel switch (12) feeder ear, the other end of travel switch (12) is connected with the inlet circuit of the 3rd energising delay switch (7), and the first output of the 3rd energising delay switch (7) is set up for being electrically connected to the solenoid that power takeoff is hung magnetic valve out of supply (2).
8. power takeoff one key control system as claimed in claim 2, the engage a gear delivery outlet that it is characterized in that a described key ganged switch (5) is connected with the feeder ear circuit of gas circuit pressure sensor (20), the other end of gas circuit pressure sensor (20) is connected with the inlet circuit of four-way electricity delay switch (8), the first output of four-way electricity delay switch (8) is connected with the feeder ear circuit of the solenoid of clutch exhaust magnetic valve (14) through diode, the other end ground connection of this solenoid.
9. power takeoff one key control system as claimed in claim 2, the delivery outlet out of supply that it is characterized in that a described key ganged switch (5) is connected with the input of the second on-delay switch (4), and the second on-delay switch (4) first outputs are set up for being electrically connected to the solenoid of clutch downlink electrical magnet valve (13) through diode; The second on-delay switch (4) second outputs are connected with the inlet circuit of the first on-delay switch (3), the first output of the first on-delay switch (3) is connected with the solenoid feeder ear that power takeoff is hung magnetic valve out of supply (2), the other end ground connection of this solenoid, the second output of the first on-delay switch (3) is connected with the feeder ear circuit of the solenoid of clutch exhaust magnetic valve (14) through diode, the other end ground connection of this solenoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210262899.5A CN102755706B (en) | 2012-07-27 | 2012-07-27 | One-key control system for power takeoff device |
Applications Claiming Priority (1)
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| CN103129493B (en) * | 2013-03-12 | 2015-04-29 | 中国重汽集团济南动力有限公司 | Control method and control device used for power takeoff of AMT vehicle |
| CN107985072A (en) * | 2017-12-28 | 2018-05-04 | 东风商用车有限公司 | The mixed dynamic sanitation cart AMT gearbox power takeoff devices of one kind and its control method |
| CN108583278B (en) * | 2018-03-30 | 2023-05-05 | 东风商用车有限公司 | Power takeoff relay control system with clutch and application method thereof |
| CN113915247B (en) * | 2021-10-26 | 2024-01-12 | 南京汽车集团有限公司 | Automatic control device for AMT chassis power takeoff |
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| JPH06254174A (en) * | 1993-03-03 | 1994-09-13 | Sanyo Electric Works Ltd | Remote controller for fire engine |
| CN101554516A (en) * | 2009-05-25 | 2009-10-14 | 北京中卓时代消防装备科技有限公司 | Automatic control and alarming system for firefighting vehicle |
| CN201890147U (en) * | 2010-09-26 | 2011-07-06 | 北汽福田汽车股份有限公司 | Control system for power takeoff |
| CN202802602U (en) * | 2012-07-27 | 2013-03-20 | 温州市公安消防支队 | One-key control system for power takeoff |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06254174A (en) * | 1993-03-03 | 1994-09-13 | Sanyo Electric Works Ltd | Remote controller for fire engine |
| CN101554516A (en) * | 2009-05-25 | 2009-10-14 | 北京中卓时代消防装备科技有限公司 | Automatic control and alarming system for firefighting vehicle |
| CN201890147U (en) * | 2010-09-26 | 2011-07-06 | 北汽福田汽车股份有限公司 | Control system for power takeoff |
| CN202802602U (en) * | 2012-07-27 | 2013-03-20 | 温州市公安消防支队 | One-key control system for power takeoff |
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