CN202802602U - One-key control system for power takeoff - Google Patents
One-key control system for power takeoff Download PDFInfo
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- CN202802602U CN202802602U CN 201220366948 CN201220366948U CN202802602U CN 202802602 U CN202802602 U CN 202802602U CN 201220366948 CN201220366948 CN 201220366948 CN 201220366948 U CN201220366948 U CN 201220366948U CN 202802602 U CN202802602 U CN 202802602U
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- delay switch
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Abstract
The utility model discloses a one-key control system for a power takeoff, belonging to the technical field of control systems for fire-fighting trucks. The one-key control system for a power takeoff is characterized by establishing a gear engaging-disengaging control circuit with the gear engaging-disengaging solenoid valve of the power takeoff and the cylinder of the power takeoff via the gear engaging-disengaging output port of a one-key two-wire switch, and establishing a clutch downlink control circuit with a clutch downlink solenoid valve, a clutch downlink cylinder and a clutch exhaust solenoid valve; the mechanical automation operation of a series of actions such as opening and closing for a water inlet valve, stepping-down and stepping-up for a clutch pedal, and disengaging and engaging for the power takeoff can be realized by simulating manual work, so as to realize the purposes of accurate control and one-key operation for the water pump of a fire-fighting truck; the one-key control system has the characteristics of being convenient and fast to operate, stable in system, reliable in work, high in safety, strong in practicability and the like; and the one-key control system can be used for controlling gear engaging for the power takeoff and starting the fire-fighting water pump to run only by 4 seconds, and the water spraying-out time can be accelerated by 2-3 minutes, so that precious time is earned for fire-fighting and rescue, thus improving the application performance of fire-fighting vehicle equipment; simultaneously, the one-key control system has the characteristics of being simple to install, low in comprehensive cost, long in service life and the like.
Description
Technical field
The utility model belongs to fire fighting truck control system technical field, is specifically related to a kind of power takeoff one key control system that is applicable to the vehicle-mounted fire pump running of fire fighting truck control.
Background technology
Power takeoff is one group of change-speed gearing, it is an independent gear in the 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 the water pump power takeoff, bleed off clutch, pump working; What fire fighting truck adopted is the structure of trailing water pumping system, the water pump control panel is arranged on the rear portion of vehicle, but taking off the extension power takeoff, fire fighting truck all needs manually driving the in-house operation realization, when needs are hung power takeoff and are taken off power takeoff, all need employment to remove driver's cabin stepping on clutch pedal, make clutch separation, thereby the extension of realizing power takeoff takes off and makes fire pump running or stop, therefore, when fire-fighting vehicle when carrying out fire fighting and rescue, operating personnel at first must be on the guidance panel at fire-fighting vehicle rear portion to turn back to vehicle drive in conjunction with air compressor machine and tank to the valve of pump first indoor in conjunction with water pump again, and then on the rear operating panel of getting off, but open the throttle until the just water outlet fire extinguishing during to 0.85Mpa of two pointer Pressure gauge, the operation of running so back and forth, can stop over the time of the place ahead water outlet, return the 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 can't be estimated, the troublesome operation process of this conventional mode of operation may be incured loss through delay the best actual of fire fighting and rescue, has reduced to a certain extent the 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, at first must guarantee before the fire pump work to fill with water in the pump chamber, the time of empty pump operation can not be above two minutes, dry grinding causes the water pump abnormal damage thereby this operator scheme can cause water pump, during pump working, water pot is in closed condition to the valve of water pump, if water pump vane is opened the water pot water intaking valve suddenly in the situation 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 advance suddenly pump can form the high pressure of moment under the water pump vane moment drive of High Rotation Speed, stifle to each pipeline of water pump forms powerful water hammer power, each stifle of pipeline is owing to the effect of water hammer power causes the stifle damage, even can cause pipeline breaking, Pressure gauge damages, moreover, suddenly the current that advance pump can be down to impeller rotation within the shortest time minimum, the engine of vehicle and gearbox moment become load by zero load, can cause the gearbox gear inordinate wear, engine operating condition is unusual, conventional mode of operation causes easily to the main body of fire-fighting vehicle water pump and the infringement of associated ping, and also there is in various degree infringement in engine and the gearbox of vehicle.
The utility model content
The utility model is intended to utilize the on-delay function of relay and the operation characteristic design of cylinder piston that a kind of power takeoff one key control system technical scheme is provided, simulation is artificial to realize that water intaking valve folding, the mechanical automation that clutch pedal is stepped on and lifted, power takeoff takes off a series of actions such as extension operate, realize that fire engine water-pump is precisely controlled, the purpose 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 the 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 the power takeoff cylinder between pipeline be connected, and with the connecting line of engage a gear blowing mouth on be equipped with the gas circuit pressure sensor; Second port of export of gas receiver through clutch downlink electrical magnet valve with set up pipeline with the descending cylinder of the clutch of magnetite, clutch exhaust magnetic valve and be connected, connect on the descending cylinder of clutch travel switch be set; Install on the described fire pump guidance panel key ganged switch that is connected with Firefighting Pump Control general supply circuit is set, the engage a gear delivery outlet of one key ganged switch is set up the circuit link circuit through five-way electricity delay switch and clutch downlink electrical magnet valve, hangs magnetic valve out of supply and sets up the circuit link circuit through travel switch, the 3rd energising delay switch, power takeoff simultaneously; The engage a gear delivery outlet of one key ganged switch is set up the 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 the 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, the clutch exhaust magnetic valve is set up circuit and is connected.
Described power takeoff one key control system, it is characterized in that described the first 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, consisted of by the energization delay relay with eight pins, with pin 1, pin 7, the connectivity port I that pin 8 circuit connect and compose is as the input of described on-delay switch, with pin 3, the connectivity port OA that pin 6 circuit connect and compose is as the first output of described on-delay switch, with 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 consists of is the earth terminal of described on-delay switch, the conduction time of described the first output is predeterminable, conduction time, preset range was 0.5～3.5 second, and described the second output is the 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 the 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 the 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 the 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, the on-board air conditioner switch is set up the 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 with the solenoid of clutch downlink electrical magnet valve through diode; Five-way electricity delay switch the second output is connected with the 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 with the solenoid that power takeoff is hung magnetic valve out of supply.
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 the feeder ear circuit of gas circuit pressure sensor, 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 the other end ground connection of this solenoid with the feeder ear circuit of the solenoid of clutch exhaust magnetic valve through diode.
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 the second on-delay switch the first output is set up for being electrically connected with the solenoid of clutch downlink electrical magnet valve through diode; The 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 the water intaking valve folding, clutch pedal is stepped on and is lifted, power takeoff takes off the mechanical automation operation of a series of actions such as extension, the realization fire engine water-pump is precisely controlled, the purpose of operating in a key, have easy to operate, fast, system stability, reliable operation, safe, the characteristics such as practical, only need connect controlled power takeoff engage a gear processed in 4 seconds, start the 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 characteristics such as long service life have high application value.
Description of drawings
Fig. 1 is the utility model structural representation;
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 behind the 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;
Among the figure: 1-Firefighting Pump Control general supply, the 2-power takeoff is hung magnetic valve out of supply, 3-the first on-delay switch, 4-the second on-delay switch, 5-one key ganged switch, entering water electromagnetic valve behind the 6-, 7-the 3rd energising delay switch, 8-four-way electricity delay switch, 9-five-way electricity delay switch, the 10-silencer, the descending cylinder of 11-clutch, the 12-travel switch, 13-clutch downlink electrical magnet valve, 14-clutch exhaust magnetic valve, 15-on-board air conditioner switch, the 16-choke valve, the 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 utility model in detail:
Be illustrated in figure 2 as the circuit connection structure schematic diagram of the on-delay switch described in the utility model, relate to described the first 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, consisted of by the energization delay relay with eight pins, with pin 1, pin 7, the connectivity port I that pin 8 circuit connect and compose is as the input of described on-delay switch, with pin 3, the connectivity port OA that pin 6 circuit connect and compose is as the first output of described on-delay switch, with 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 consists of is the earth terminal of described on-delay switch, the conduction time of described the first output is predeterminable, conduction time, preset range was 0.5～3.5 second, and described the second output is the delay power output.
Be illustrated in figure 1 as power takeoff one key control system, power takeoff described in the utility model, 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 the 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, the piston rod of power takeoff cylinder 19 moves ahead and contacts gear engagement sensor 18 during engage a gear, gear engagement sensor 18 is connected, be equipped with power takeoff on the connecting line of power takeoff cylinder 19 and gas receiver 17 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 the 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 is equipped with gas circuit pressure sensor 20 on the connecting line of engage a gear blowing mouth and power takeoff cylinder 19; The descending cylinder 11 of clutch adopts the band magnet structure, its piston base is connected with magnetite, the descending cylinder 11 exterior bottom connection of clutch arranges travel switch 12, when the descent of piston of the descending cylinder 11 of clutch arrives the bottom, the attraction of the magnetite that piston base is set is connected travel switch 12, and power takeoff begins engage a gear; Be equipped with clutch downlink electrical magnet valve 13 on the connecting line of the descending cylinder 11 of clutch and gas receiver 17, 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 and is used 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 a key ganged switch 5, the one key ganged switches 5 that the connection of Firefighting Pump Control general supply 1 circuit is set are installed on the fire pump guidance panel supplies to be electrically connected with Firefighting Pump Control general supply 1; The engage a gear delivery outlet of one key ganged switch 5 is set up the 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 the circuit link circuit through travel switch 12, the 3rd energising delay switch 7, power takeoff simultaneously; 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 the 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 of the 3rd energising delay switch 7 is connected the other end ground connection of this solenoid and forming circuit link circuit with the input that power takeoff is hung the solenoid of magnetic valve 2 out of supply; 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 the 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 the 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 through the input of diode with the solenoid of clutch downlink electrical magnet valve 13, 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 the circuit link circuit with rear entering water electromagnetic valve 6 respectively; guarantee that rear entering water electromagnetic valve 6 continues to be in power supply state; entering water electromagnetic valve 6 is connected with the gas circuit of setting up of gas receiver 17 simultaneously; provide source of the gas by gas receiver 17 for rear entering water electromagnetic valve 6; make rear entering water electromagnetic valve 6 can be as required at any time to make the fire pump make-up water source in order to protect fire pump.
In above-described embodiment, the engage a gear delivery outlet of one key ganged switch 5 is set up the circuit control connection through gear engagement sensor 18, on-board air conditioner switch 15, in order to impel engine automatically to raise speed by starting the running air-conditioning behind the power takeoff engage a gear, to avoid low engine speed load excessive and cause flame-outly, make simultaneously pump working more stable.
Power takeoff one key control system described in the utility model 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 of traditional operation minute, advanced widely carrying out smoothly and disposing capacity of fire fighting and rescue accident, make pump working and take off power takeoff and water pump is quit work describe by hanging power takeoff, 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 separates: open Firefighting Pump Control general supply 1, one key ganged switch 5 is got to the 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 of clutch 11 descending, clutch separation, be preset as 2 seconds the conduction time of five-way electricity delay switch 9 first outputs, clutch separation operation before in 2 seconds of the first output energising, finishing the power takeoff engage a gear, the power takeoff engage a gear front clutch released state that is shown in Figure 3;
Second step, the power takeoff engage a gear: the energising of five-way electricity delay switch 9 first outputs disconnected in 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 be transported to again power takeoff cylinder 19 through gas circuit pressure sensor 20, power takeoff cylinder 19 piston rods move ahead and contact gear engagement sensor 18, make the 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, finish the operation of power takeoff engage a gear, Figure 4 shows that power takeoff engage a gear state;
The 3rd step, clutch combination behind the power takeoff engage a gear: behind the power takeoff engage a gear, connect behind gas circuit pressure sensor 20 pressurizeds, engage a gear delivery outlet power supply by a key ganged switch 5, 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 the on-board air conditioner rear engine raises speed automatically, cause flame-out to avoid low engine speed to load excessive, make simultaneously pump working more stable, Figure 5 shows that clutch bonding state behind the power takeoff engage a gear.
Operate a key ganged switch 5 and connect engage a gear delivery outlet, clutch binding operation behind 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) take off power takeoff and make the out-of-work process of water pump:
The first step, power takeoff front clutch out of supply separates: 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 outlets out of supply are switched to the second on-delay switch 4 inputs, clutch downlink electrical magnet valve 13 is connected in solenoid power supply for clutch downlink electrical magnet valve 13 after the second on-delay switch 4 first outputs are connected, 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 of clutch 11 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, finish 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 disconnected in 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, after connecting, hangs the first output of the first on-delay switch 3 the solenoid power supply of magnetic valve 2 out of supply for power takeoff, 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, be transported to power takeoff cylinder 19 after the blowing mouth output out of supply, 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 outputs energising, finish power takeoff operation out of supply;
The 3rd step, power takeoff rear clutch combination out of supply: the energising of the first output of the first on-delay switch 3 disconnected in 2.8 seconds afterwards, the second output is connected simultaneously and be the solenoid power supply of clutch exhaust magnetic valve 14, 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 finish, 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 separate, power takeoff is out of supply, power takeoff out of supply after the clutch binding operation, finish and take off power takeoff and make the out-of-work operation of water pump.
Power takeoff one key control system described in the utility model possesses skills advanced, simple to operate, the characteristics such as practical, safe and reliable, be applicable to the fire fighting truck that all need extra power taking, can realize 100,000 failure-free operation, and installation is extremely simple, can have general REPSH repair shop to finish installation, and is cheap for manufacturing cost, after this also almost need not maintenance, the recondition expense of system, have 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 the connecting line of engage a gear blowing mouth on be equipped with gas circuit pressure sensor (20); Second port of export of gas receiver (17) through clutch downlink electrical magnet valve (13) with set up pipeline and be connected with the descending cylinder of the clutch of magnetite (11), clutch exhaust magnetic valve (14), the upper connection of the descending cylinder of clutch (11) arranges travel switch (12); Install on the described fire pump guidance panel key ganged switch (5) that is 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 the 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 the circuit link circuit through travel switch (12), the 3rd energising delay switch (7), power takeoff simultaneously; The engage a gear delivery outlet of one key ganged switch (5) is set up the 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 the 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 described the first 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, consisted of by the energization delay relay with eight pins, with pin 1, pin 7, the connectivity port I that pin 8 circuit connect and compose is as the input of described on-delay switch, with pin 3, the connectivity port OA that pin 6 circuit connect and compose is as the first output of described on-delay switch, with 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 consists of is the earth terminal of described on-delay switch, the conduction time of described the first output is predeterminable, conduction time, preset range was 0.5～3.5 second, and described the second output is the 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 the 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 the 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 with 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 with 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 the other end ground connection of this solenoid through the feeder ear circuit of diode with the solenoid of clutch exhaust magnetic valve (14).
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 with 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 through the feeder ear circuit of diode with the solenoid of clutch exhaust magnetic valve (14), the other end ground connection of this solenoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366948 CN202802602U (en) | 2012-07-27 | 2012-07-27 | One-key control system for power takeoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366948 CN202802602U (en) | 2012-07-27 | 2012-07-27 | One-key control system for power takeoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202802602U true CN202802602U (en) | 2013-03-20 |
Family
ID=47861549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220366948 Withdrawn - After Issue CN202802602U (en) | 2012-07-27 | 2012-07-27 | One-key control system for power takeoff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202802602U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755706A (en) * | 2012-07-27 | 2012-10-31 | 温州市公安消防支队 | One-key control system for power takeoff device |
| CN107380156A (en) * | 2017-07-21 | 2017-11-24 | 三汽车起重机械有限公司 | Automatic power taking disconnects apparatus and method |
-
2012
- 2012-07-27 CN CN 201220366948 patent/CN202802602U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755706A (en) * | 2012-07-27 | 2012-10-31 | 温州市公安消防支队 | One-key control system for power takeoff device |
| CN102755706B (en) * | 2012-07-27 | 2014-10-29 | 温州市公安消防支队 | One-key control system for power takeoff device |
| CN107380156A (en) * | 2017-07-21 | 2017-11-24 | 三汽车起重机械有限公司 | Automatic power taking disconnects apparatus and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130320 Effective date of abandoning: 20141029 |
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| RGAV | Abandon patent right to avoid regrant |