CN101858291A - Detection and analysis test stand of electric control diesel engine injector and control method thereof - Google Patents
Detection and analysis test stand of electric control diesel engine injector and control method thereof Download PDFInfo
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Abstract
The invention provides a detection and analysis test stand of an electric control diesel engine injector, comprising a test stand casing, an oil supply system, a control system and a detection and display system, wherein the control system comprises a power supply, a transformer, a PLC (Programmable Logic Controller) and a display screen control console which are sequentially connected; the PLC is respectively connected with an injector to be detected, a high-pressure oil pump of the oil supply system, various sensors, a spraying detector in the detection and display system and various solenoid valves in the detection and display system for oil delivery control; the transformer is respectively connected with the injector, the spraying detector in the detection and display system and an oil delivery pump in the oil supply system; the injector is fixed in the detection and display system; and the power supply is connected with the oil supply system which is connected with the detection and display system. The invention also provides a control method of the test stand, which is used for detecting various performances of the injector by the control of the PLC. The invention has the advantages of complete functions, high detection efficiency and the like and is applicable for tests of various automobile servicing stations, universities and colleges and research institutions.
Description
Technical field
The invention belongs to oil sprayer detection technique field, be particularly related to a kind of electronic controlled diesel oil sprayer check and analysis test stand and controlling method thereof that can detect, be applicable to all kinds of automobile maintenance stations, universities and colleges and research institute's test use the multiple performance of the various oil sprayers of electronic controlled diesel.
Background technique
Electric-controlled fuel injector is an important spare part realizing the spraying of accurate measurement amount of fuel in the automobile ejecting system, and its spray characteristics has extremely important influence to the combustion process of motor.Therefore, the detection for the seal of electric-controlled fuel injector, the shape that atomizes and aspect contents such as quality, fuel injection quantity is very important.At present, the electric-controlled fuel injector check and analysis test stand that is used for all kinds of auto repairs generally all exists following defective: (1) existing electric-controlled fuel injector detects test stand and controlling method generally all is to adopt single-chip microcomputer or process control machine to control, and the function ratio that single-chip microcomputer can be realized is more limited, can not satisfy the multinomial FT function test of oil sprayer, thereby cause being subjected to very large restriction in the application of oil sprayer Detection range, it is few that therefore existing oil sprayer detection test stand generally exists measuring ability, detect defectives such as not comprehensive, and the arithmetic speed of single-chip microcomputer is also slow, and efficient is lower; And the process control machine volume is big, cost is higher, makes oil sprayer detect the test stand application and is subjected to limit bigger; (2) existing electric-controlled fuel injector detects test stand and generally adopts air pressure control oil transportation, and the injection pressure that air pressure produces is lower, generally is no more than 200MPa, and vibration is bigger, has defectives such as noise is big, unstable properties; (3) existing electric-controlled fuel injector detects test stand when carrying out oil sprayer spraying detection, and the air in also being difficult to spray effectively separates, and has a strong impact on the validity of its detection; (4) existing oil sprayer detects test stand and yet there are no use laser or High Speed Photography detection mist of oil granularity and distribution, can not the mist of oil granularity and the distribution of oil sprayer be detected; (5) existing oil sprayer detection test stand generally adopts fan to carry out the oil spout cooling, has defectives such as volume is big, cooling effect difference, yet there are no and uses the semiconductor cooling technology to carry out the oil spout cooling.(6) the detection validity of existing oil sprayer detection test stand is generally all lower.
Because existing oil sprayer detects test stand and there is above defective in controlling method, therefore, need provide the oil sprayer that a kind of measuring ability is comprehensive, testing precision is high, detection efficiency is high to detect test stand, with research and development and the production needs that satisfy electric-controlled fuel injector.
Summary of the invention
The shortcoming that the objective of the invention is to overcome above-mentioned prior art is with not enough, and a kind of complete function, cost is low, efficient is high electronic controlled diesel oil sprayer check and analysis test stand are provided.
For reaching above-mentioned purpose, the present invention adopts following technological scheme: electronic controlled diesel oil sprayer check and analysis test stand, comprise stand housing, oil supply system, control system and detection display system, described control system comprises power supply, transformer, PLC controller and the display screen operating console that connects successively; Tested oil sprayer is fixed in the described detection display system, described PLC controller respectively with oil sprayer, oil supply system, detection display system in the spraying detector with the atomizing detection device and detect each solenoid valve that is used for oil transportation control in the display system and is connected, described transformer is connected with spraying detector, the oil transfer pump in the oil supply system in oil sprayer, the detection display system respectively; Described power supply is connected with oil supply system, and oil supply system is connected with the detection display system; Described PLC controller also is connected with each sensor in the oil supply system.
Described oil supply system comprises fuel tank, fuel heater, filter cleaner, high pressure oil pump and motor, described high pressure oil pump is the electric-controlled co-rail high pressure oil pump, described oil transfer pump and fuel heater all place in the fuel tank, and high pressure oil pump, oil transfer pump and fuel heater all are connected with PLC controller in the control system; Described oil transfer pump, filter cleaner and high pressure oil pump are connected by pipeline road successively, and high pressure oil pump is connected on the oil sprayer by pressure duct; Described high pressure oil pump is connected with motor, and motor is connected with power supply;
Also be connected with pressure regulating switch and be provided with oil pressure gauge on high pressure oil pump and pressure duct that oil sprayer is connected or/and oil pressure sensor, pressure regulating switch, oil pressure sensor all are connected with the PLC controller, and pressure regulating switch is arranged on the display screen operating console.
Between motor and high pressure oil pump, also be connected with flywheel; Perhaps, flexibly connect by floating shelf between described motor and the high pressure oil pump.
Described detection display system comprises oil sprayer fixing frame, atomizing detection device, fuel injection quantity detection device, recirculating oil quantity detection device and oil spout quality detection device, and described spraying detector is located at the rear of atomizing detection device; Described oil sprayer fixing frame is located at the top of atomizing detection device; Tested oil sprayer is fixed on the oil sprayer fixing frame, and connects atomizing detection device, fuel injection quantity detection device and recirculating oil quantity detection device respectively; Described oil spout quality detection device is connected with the recirculating oil quantity detection device with the fuel injection quantity detection device respectively;
Described fuel injection quantity detection device, recirculating oil quantity detection device, oil spout quality detection device are connected with fuel tank by pipeline road respectively;
Described each solenoid valve that is used for oil transportation control is located at the pipeline road that pipeline road that the fuel injection quantity detection device is connected with fuel tank, pipeline road that the recirculating oil quantity detection device is connected with fuel tank and oil spout quality detection device are connected with fuel tank respectively.
Described test stand also comprises the mist of oil air-separating plant that is made of mist of oil air separator and vacuum pump, and the mist of oil air separator is connected with vacuum pump, and vacuum pump is connected with the PLC controller; Described mist of oil air separator is connected with the atomizing detection device that detects display system and the fuel tank of oil supply system by pipeline respectively.
Described atomizing detection device comprises observation ward, and described observation ward is connected with the mist of oil air separator, and the inner and upper of observation ward is fixed with several light emitting diodes, and light emitting diode is connected with the PLC controller; The bottom inside of observation ward is provided with the oil cover;
Described oil spout quality detection device is an electronic balance, described electronic balance is connected with the fuel injection quantity detection device with the recirculating oil quantity detection device respectively by pipeline road, and described recirculating oil quantity detection device is connected with oil sprayer by pipeline road respectively with the fuel injection quantity detection device;
Described recirculating oil quantity detection device is a glass cylinder or electronic console, and described fuel injection quantity detection device is a glass cylinder or electronic console;
Described detection display system also comprises the semiconductor condenser, and described semiconductor condenser is arranged at the place, the filler opening back side of fuel injection quantity detection device and recirculating oil quantity detection device;
Described spraying detector is laser detecting apparatus or High Speed Photography detector.
Described sensor pack oil scraper temperature inductor and oil level inductor, oily temperature inductor and oil level inductor all place fuel tank, and all are connected with PLC controller in the control system;
On high pressure oil pump and pressure duct that oil sprayer is connected, also be provided with the oil spout high-pressure safety valve;
Described display screen operating console is provided with several instruction button, and comprising oil temperature alarm, low oil alarm, high oil level alarm, power supply indicator and emergency stop switch, each instruction button all is connected with the PLC controller; Described oil temperature alarm is connected with oily temperature inductor, and low oil alarm all is connected with the oil level inductor with high oil level alarm.
Described stand housing comprises upper body, middle body and lower body, the from top to bottom connection successively of upper body, middle body and lower body, the power supply of described control system, transformer and PLC controller and oil supply system and mist of oil air-separating plant all place lower body inside, on the body, described detection display system was located on the upper body during described display screen operating console was located at;
The upper body of described stand housing also is provided with and is used to cover the plexiglass protective door that detects display system.
The controlling method of above-mentioned electronic controlled diesel oil sprayer check and analysis test stand specifically comprises the steps:
(1) starts power supply, select the suitable vehicle model of tested oil sprayer, and vehicle model signal is sent to the PLC controller by the display screen operating console;
(2) the PLC controller is according to vehicle model signal, sends the corresponding setting signal to high pressure oil pump and oil transfer pump, with startup rotating speed that high pressure oil pump and oil transfer pump are set, idling speed, Economy rotating speed, Maximum Torque, peak output with and maximum speed;
(3) the PLC controller sends signal enabling oil transfer pump and high pressure oil pump, and the fuel oil in the fuel tank is pumped to the oil sprayer place along pipeline road and pressure duct successively under the pressure of oil transfer pump and high pressure oil pump;
(4) the PLC controller sends fuel injection signal to oil sprayer, with the oil spout of control oil sprayer;
(5) signal that sends according to the PLC controller of the oil sprayer oil spout of spraying corresponding number of times, the detector of spraying simultaneously, atomizing detection device, fuel injection quantity detection device, recirculating oil quantity detection device and oil spout quality detection device detect oil atomizing granularity and distribution, oil atomizing quality, oil spout volume, recirculating oil quantity and the oil spout quality of oil sprayer respectively; Wherein detect the oil atomizing granularity obtain and distributed data by the statistical analysis of PLC controller, and in the display screen operating console, show;
(6) after detection finishes, open each solenoid valve by the control of PLC controller, fuel oil flows back to fuel tank along pipeline road.
Specific as follows to the detection of the oil atomizing granularity of oil sprayer and distribution in the described step (5): oil sprayer is to observation ward's oil spout, and the PLC controller starts the spraying detector; Described spraying detector is collected oil atomizing granularity and distributed data, and sends it in the PLC controller; The PLC controller is to data statistic analysis, and the result is presented on the display screen operating console;
Detection to the oil atomizing quality of oil sprayer in the described step (5) is specific as follows: oil sprayer is to observation ward's oil spout, the PLC controller starts the mist of oil air-separating plant and lights light emitting diode simultaneously, and the mist of oil air-separating plant is with mist of oil in the observation ward and air separation; The oil atomizing quality clearly shows in observation ward, so that the experimenter observes detection;
Detection to the oil spout volume of oil sprayer in the described step (5) is specific as follows: the oil sprayer oil spout, and fuel oil is flowed in the fuel injection quantity detection device along pipeline road by semiconductor condenser cooling back, and shows oil spout volume numerical value in the fuel injection quantity detection device;
Detection to the recirculating oil quantity of oil sprayer in the described step (5) is specific as follows: the oil sprayer oil spout, and fuel oil is flowed in the recirculating oil quantity detection device along pipeline road by semiconductor condenser cooling back, shows oil spout recirculating oil quantity numerical value in the recirculating oil quantity detection device;
Detection to the oil spout quality of oil sprayer in the described step (5) is specific as follows: the oil sprayer oil spout, and fuel oil flows in the oil spout quality detection device along pipeline road, and shows oil spout quality numerical value in the oil spout quality detection device; Described oil spout quality detection device is an electronic balance;
Spraying detector in oil sprayer, the detection display system and the oil transfer pump in the oil supply system are controlled its voltage parameter by transformer;
Described oil temperature inductor, oil level inductor and oil pressure sensor are monitored the temperature and the injection oil pressure of fuel oil respectively, and send coherent signal to the display screen operating console by the PLC controller respectively, shown, regulate and controlled by the display screen operating console.
Working principle of the present invention: power connection, high pressure oil pump work, oil transfer pump in the fuel tank pumps fuel from fuel tank simultaneously, fuel oil filters through filter cleaner, enter into high pressure oil pump, high pressure oil pump pressurizes to fuel oil again, regulates pressure by pressure regulating switch, last fuel oil is delivered to the oil sprayer oil spout, and oil pressure gauge can show injection pressure synchronously.Fuel injection beginning time and fuel injection quantity are measured by being sent to the PLC controller in display screen operating console input instruction and are controlled, and each sensor also transmits information to the PLC controller immediately.Measure fuel injection quantity (oil spout volume) as needs, then on the display screen operating console, import command adapted thereto, then oil sprayer injecting times oil spout as requested, simultaneously in the fuel injection quantity detection device, show numerical value, measurement finishes, and solenoid valve is opened, and fuel oil flows back to fuel tank along pipeline road; Measure recirculating oil quantity (volume) as needs, then import command adapted thereto on the display screen operating console, then oil sprayer is measured recirculating oil quantity as requested, shows numerical value simultaneously in the recirculating oil quantity detection device, and measurement finishes, and solenoid valve is opened, and fuel oil flows back to fuel tank along pipeline road; Accurately measure the oil spout quality as needs, then on the display screen operating console, import command adapted thereto, oil sprayer injecting times oil spout as requested, electronic balance is accurately measured the fuel injection quantity magnitude, shows numerical value simultaneously, after measurement finishes, solenoid valve is opened, and the fuel oil pipeline road flows back to fuel tank; Observe the oil atomizing quality as needs, then import command adapted thereto on the display screen operating console, mist of oil air separator and vacuum pump are started working, and the light emitting diode in the observation ward is lighted simultaneously, and oil atomizing is clear to be shown in observation ward; Accurately measure oil atomizing granularity and distribution as needs, then import command adapted thereto on the display screen operating console, the spraying detector is started working, and statistics shows from the display screen operating console.
Compared with prior art, the present invention has following advantage and beneficial effect:
(1), adopt PLC controller (programmable logic controller (PLC)) to control the overall process test of this test stand, with respect to existing single-chip microcomputer or process control machine control, have powerful comprehensively, fast operation, efficient height, low cost and other advantages.
(2), adopt the electric-controlled co-rail high pressure oil pump to produce high pressure, injection pressure can be up to 280MPa, and also is connected with the flywheel that is used for balance between motor and high pressure oil pump, the air pressure control with respect to prior art has little, the steady performance of noise; Motor connects with adopting crane barge method (floating shelf) being connected of high pressure oil pump, itself and whole machine body are flexibly connected, motor and high pressure oil pump and body connect as one during transportation, motor separates with body with high pressure oil pump and lands during work, has convenient transportation, steady performance.
(3), prior art can't resolve the difficult problem of mist of oil and air separation, and the present invention can realize easily, the present invention is provided with the mist of oil air-separating plant, utilize vacuum pump and mist of oil air separator, air is got rid of rapidly when making the oil sprayer spraying, can be effectively the air in the spraying be effectively separated, thereby guaranteeing that the oil sprayer atomization quality detects can be intuitively, reliably and the working environment that keeps clean.
(4), adopt laser detecting apparatus or High Speed Photography detector to detect mist of oil granularity and distribution, granularity of spray detects can reach 10 μ m, testing precision is very high; Adopt electronic balance to detect the oil spout quality, its precision can reach 0.001g.
(5), adopt the technology of semiconductor condenser cooling fuel oil, thereby guarantee that each detection device is not damaged by the high temperature of fuel oil, and in fuel tank, be provided with fuel heater, guarantee that fuel oil temperature is constant.
(6), the present invention also is provided with multiple detection protective measures such as plexiglass protective door, oily temperature alarm, low oil alarm, high oil level alarm, oil spout high-pressure safety valve, and is safe and reliable.
(7), measuring ability of the present invention is comprehensive, can carry out complete detection to cracking pressure, fuel injection quantity, recirculating oil quantity, sealability, magnetic valve performance, atomization quality, granularity of spray and the uniformity etc. of electronic controlled diesel oil sprayer.
(8), wide adaptability of the present invention, can to common-rail injector, single multiple oil sprayer such as two-spring injector, step type oil sprayer, pump nozzle carry out Performance Detection.
(9), testing precision height of the present invention, oil sprayer working pulse width can reach 10 μ s, granularity of spray detects and can reach 10 μ m, oil spout quality precision can reach 0.001g.
(10), control system of the present invention sets flexibly, in the display screen operating console, detected parameters can be set arbitrarily, and parameters such as the injection pressure of high pressure common rail injector, injecting times, frequency, pulsewidth, voltage can be set arbitrarily as required; The PLC controller can be in real time control detection automatically, and by the demonstration directly perceived, clear of display screen operating console, and the display screen operating console can adopt touch screen, and is easy to use; And have oil sprayer fault self-diagnosis and screen display function, the convenient detection keeped in repair.
(11), the present invention adopts the silica glass observation ward of the high grade of transparency and the lighting condition of high brightness, can make the atomizing situation high-visible, atomizing testing precision height; Fuel injection quantity detection device and recirculating oil quantity detection device can adopt glass cylinder and two kinds of forms of electronic console, and washability is various.
Description of drawings
Fig. 1 is the structural representation of test stand of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
As shown in Figure 1, this electronic controlled diesel oil sprayer check and analysis test stand comprises stand housing, oil supply system, control system and detection display system, and described control system comprises power supply 33, transformer 1, PLC controller 3 and the display screen operating console 30 that connects successively; Tested oil sprayer 8 is fixed in the described detection display system, described PLC controller 3 respectively with oil sprayer 8, oil supply system, detection display system in spraying detector 6 and detect each solenoid valve that is used for oil transportation control in the display system and be connected, described transformer 1 is connected with spraying detector 6, the oil transfer pump 25 in the oil supply system in oil sprayer 8, the detection display system respectively; Described power supply 33 is connected with oil supply system, and oil supply system is connected with the detection display system; PLC controller 3 also is connected with each sensor in the oil supply system.
Described oil supply system comprises fuel tank 21, fuel heater 22, filter cleaner 29, high pressure oil pump 2 and motor 32, and described high pressure oil pump 2 is an electric-controlled co-rail high pressure oil pump 2, and is connected with PLC controller 3 in the control system; Described oil transfer pump 25 and fuel heater 22 all place in the fuel tank 21, and all are connected with PLC controller 3 in the control system; Described oil transfer pump 25 is connected by pipeline road 28 with filter cleaner 29, and filter cleaner 29 and high pressure oil pump 2 are connected by pipeline road, and high pressure oil pump 2 is connected on the oil sprayer 8 by pipeline road; Described high pressure oil pump 2 is connected with motor 32, and described motor 32 is connected with power supply 33;
On high pressure oil pump 2 and pipeline road 4 that oil sprayer 8 is connected, also be connected with pressure regulating switch 5 and be provided with oil pressure gauge 11 and oil pressure sensor, pressure regulating switch 5, oil pressure sensor all are connected with PLC controller 3, and pressure regulating switch 5 is arranged on the display screen operating console 30.
On high pressure oil pump 2 and pressure duct 4 that oil sprayer 8 is connected, also be provided with the oil spout high-pressure safety valve, with protection oil spout safety.
Between motor 32 and high pressure oil pump 2, also be connected with flywheel 31.
Described detection display system comprises oil sprayer fixing frame, atomizing detection device, fuel injection quantity detection device 14, recirculating oil quantity detection device 15 and oil spout quality detection device, and described spraying detector 6 is located at the rear of atomizing detection device; Described oil sprayer fixing frame is located at the top of atomizing detection device; Oil sprayer 8 is fixed on the oil sprayer fixing frame, and connects atomizing detection device and fuel injection quantity detection device 14 by pipeline road respectively, and connects recirculating oil quantity detection device 15 by pipeline road 12; Described oil spout quality detection device is connected with recirculating oil quantity detection device 15 with fuel injection quantity detection device 14 respectively;
Described fuel injection quantity detection device 14, recirculating oil quantity detection device 15, oil spout quality detection device are connected with fuel tank 21 by pipeline road respectively;
Described each solenoid valve 16,19 that is used for oil transportation control is located at the pipeline road 17 that fuel injection quantity detection device 14 and recirculating oil quantity detection device 15 be connected with fuel tank 21, the pipeline road that oil spout quality detection device 18 is connected with fuel tank 21 respectively.
Described test stand also comprises the mist of oil air-separating plant that is made of mist of oil air separator 27 and vacuum pump 26, and mist of oil air separator 27 is connected with vacuum pump 26; Described mist of oil air separator 27 is connected with the atomizing detection device that detects display system, and is connected with fuel tank 21 by pipeline.
Described atomizing detection device comprises observation ward 9, and described observation ward 9 is connected with mist of oil air separator 27, and the inner and upper of observation ward 9 is fixed with several light emitting diodes 7, and the bottom inside of observation ward 9 is provided with oil cover 10.Described observation ward 9 is a silica glass observation ward.
Described oil spout quality detection device is an electronic balance, described electronic balance is connected with fuel injection quantity detection device 14 with recirculating oil quantity detection device 15 respectively by pipeline road, and described recirculating oil quantity detection device 15 is connected with oil sprayer 8 by pipeline road respectively with fuel injection quantity detection device 14;
Described recirculating oil quantity detection device 15 and fuel injection quantity detection device 14 are a glass cylinder.
Described detection display system also comprises semiconductor condenser 13, and described semiconductor condenser 13 is arranged at the filler opening place of fuel injection quantity detection device 14 and recirculating oil quantity detection device 15.
Described spraying detector 6 is a laser detecting apparatus.
Described sensor pack oil scraper temperature inductor and oil level inductor 23, oily temperature inductor and oil level inductor 23 all place fuel tank 21, and all are connected with PLC controller in the control system;
Described display screen operating console 30 is provided with several instruction button, and comprising oil temperature alarm, low oil alarm 20, high oil level alarm 24, power supply indicator and emergency stop switch, each instruction button all is connected with PLC controller 3; Described oil temperature alarm is connected with oily temperature inductor, and low oil alarm 20 all is connected with oil level inductor 23 with high oil level alarm 24.
Described stand housing comprises upper body, middle body and lower body, the from top to bottom connection successively of upper body, middle body and lower body, the power supply 33 of described control system, transformer 1 and PLC controller 3 and oil supply system and mist of oil air-separating plant all place lower body inside, on the body, described detection display system was located on the upper body during described display screen operating console 30 was located at;
The upper body of described stand housing also is provided with and is used to cover the plexiglass protective door that detects display system.
The controlling method of this electronic controlled diesel oil sprayer check and analysis test stand specifically comprises the steps:
(1) starts power supply 33, select the suitable vehicle model of tested oil sprayer 8, and vehicle model signal is sent to PLC controller 3 by display screen operating console 30;
(2) PLC controller 3 is according to vehicle model signal, send the corresponding setting signals to high pressure oil pump 2 and oil transfer pump 25, with startup rotating speed that high pressure oil pump 2 and oil transfer pump 25 are set, idling speed, Economy rotating speed, Maximum Torque, peak output with and maximum speed;
(3) PLC controller 3 sends signal enabling high pressure oil pump 2 and oil transfer pump 25, and the fuel oil in the fuel tank 21 is pumped to the oil sprayer place along pipeline road and pressure duct successively under the pressure of oil transfer pump 25 and high pressure oil pump 2;
(4) PLC controller 3 sends fuel injection signal to oil sprayer, with the oil spout of control oil sprayer;
(5) signal that sends according to PLC controller 3 of the oil sprayer oil spout of spraying corresponding number of times, the detector 6 of spraying simultaneously, atomizing detection device, fuel injection quantity detection device 14, recirculating oil quantity detection device 15 and oil spout quality detection device detect oil atomizing granularity and distribution, oil atomizing quality, oil spout volume, recirculating oil quantity and the oil spout quality of oil sprayer respectively; Wherein detect the oil atomizing granularity obtain and distributed data by 3 statistical analyses of PLC controller, and in display screen operating console 30, show;
(6) after detection finishes, open each solenoid valve by 3 controls of PLC controller, fuel oil flows back to fuel tank 21 along pipeline road.
Specific as follows to the detection of the oil atomizing granularity of oil sprayer and distribution in the described step (5): oil sprayer is to observation ward's oil spout, and PLC controller 3 starts spraying detectors 6; Described spraying detector 6 is collected oil atomizing granularity and distributed data, and sends it in the PLC controller 3; 3 pairs of data statistic analysis of PLC controller, and the result is presented on the display screen operating console 30;
Detection to the oil atomizing quality of oil sprayer in the described step (5) is specific as follows: oil sprayer is to observation ward's oil spout, PLC controller 3 starts the mist of oil air-separating plant and lights light emitting diode 7 simultaneously, and the mist of oil air-separating plant is with mist of oil in the observation ward and air separation; The oil atomizing quality clearly shows in observation ward, so that the experimenter observes detection;
Detection to the oil spout volume of oil sprayer in the described step (5) is specific as follows: the oil sprayer oil spout, and fuel oil is flowed in the fuel injection quantity detection device 14 along pipeline road by semiconductor condenser 13 cooling backs, and shows oil spout volume numerical value in fuel injection quantity detection device 14;
Detection to the recirculating oil quantity of oil sprayer in the described step (5) is specific as follows: the oil sprayer oil spout, and fuel oil is flowed in the recirculating oil quantity detection device 15 along pipeline road by semiconductor condenser 13 cooling backs, shows oil spout recirculating oil quantity numerical value in the recirculating oil quantity detection device 15;
Detection to the oil spout quality of oil sprayer in the described step (5) is specific as follows: the oil sprayer oil spout, and fuel oil flows in the oil spout quality detection device along pipeline road, and shows oil spout quality numerical value in the oil spout quality detection device; Described oil spout quality detection device is an electronic balance;
Oil sprayer, the spraying detector 6 and the oil transfer pump 25 in the oil supply system that detect in the display system are controlled its voltage parameter by transformer 1;
Described oil temperature inductor, oil level inductor and oil pressure sensor are monitored the temperature and the injection oil pressure of fuel oil respectively, and send coherent signals to display screen operating console 30 by PLC controller 3 respectively, shown, regulate and controlled by display screen operating console 30.
The working principle of present embodiment: power supply 33 is connected, high pressure oil pump 2 work, oil transfer pump 25 in the fuel tank 21 pumps fuel from fuel tank 21 simultaneously, fuel oil filters through filter cleaner 29, enter into high pressure oil pump 2,2 pairs of fuel oils of high pressure oil pump pressurize again, regulate pressure by pressure regulating switch 5, last fuel oil is delivered to oil sprayer 8 oil spouts, and oil pressure gauge 11 can show injection pressure synchronously.Fuel injection beginning time and fuel injection quantity are measured by being sent to the PLC controller in the 30 input instructions of display screen operating console and are controlled, and each sensor is also immediately to PLC controller 3 transmission information.Oil sprayer 8 play buttons on the display screen operating console 30,3 of PLC controllers send electrical pulses, oil sprayer 8 commencement of fuel injection to oil sprayer 8.Measure fuel injection quantity (oil spout volume) as needs, 30 input command adapted theretos on the display screen operating console then, oil sprayer 8 injecting times oil spout as requested, simultaneously in fuel injection quantity detection device 14, show numerical value, measurement finishes, and solenoid valve is opened, and fuel oil flows back to fuel tank 21 along pipeline road; Measure recirculating oil quantity (volume) as needs, 30 input command adapted theretos on the display screen operating console then, oil sprayer 8 is measured recirculating oil quantity as requested, simultaneously in recirculating oil quantity detection device 15, show numerical value, measurement finishes, and solenoid valve is opened, and fuel oil flows back to fuel tank 21 along pipeline road; Accurately measure the oil spout quality as needs, then on the display screen operating console 30 the input command adapted theretos, oil sprayer 8 injecting times oil spout as requested, electronic balance is accurately measured the fuel injection quantity magnitude, shows numerical value simultaneously, after measurement finishes, solenoid valve is opened, and the fuel oil pipeline road flows back to fuel tank 21; Observe the oil atomizing quality as needs, 30 input command adapted theretos on the display screen operating console then, mist of oil air separator 27 and vacuum pump 26 are started working, and the light emitting diodes 7 in the observation ward 9 are lighted simultaneously, and oil atomizing is clear to be shown in observation ward 9; Accurately measure oil atomizing granularity and distribution as needs, then on the display screen operating console 30 the input command adapted theretos, the spraying detector 6 start working, statistics shows from display screen operating console 30.
Present embodiment except that following characteristics other structures with embodiment 1: flexibly connect by floating shelf between described motor and the high pressure oil pump.
Present embodiment except that following characteristics other structures with embodiment 1: described spraying detector is the High Speed Photography detector; Described recirculating oil quantity detection device and fuel injection quantity detection device are electronic console.
Embodiment 4
Present embodiment except that following characteristics other structures with embodiment 1: on high pressure oil pump 2 and pipeline road 4 that oil sprayer 8 is connected, also be connected with pressure regulating switch 5 and be provided with oil pressure sensor, pressure regulating switch 5, oil pressure sensor all are connected with PLC controller 3, and pressure regulating switch 5 is arranged on the display screen operating console 30.
Present embodiment except that following characteristics other structures with embodiment 1: on high pressure oil pump 2 and pipeline road 4 that oil sprayer 8 is connected, also be connected with pressure regulating switch 5 and be provided with oil pressure gauge 11, pressure regulating switch 5 is connected with PLC controller 3, and pressure regulating switch 5 is arranged on the display screen operating console 30.
The various embodiments described above are preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. electronic controlled diesel oil sprayer check and analysis test stand comprises stand housing, oil supply system, control system and detection display system, it is characterized in that: described control system comprises power supply, transformer, PLC controller and the display screen operating console that connects successively; Tested oil sprayer is fixed in the described detection display system, described PLC controller respectively with oil sprayer, oil supply system, detection display system in the spraying detector with the atomizing detection device and detect each solenoid valve that is used for oil transportation control in the display system and is connected, described transformer is connected with spraying detector, the oil transfer pump in the oil supply system in oil sprayer, the detection display system respectively; Described power supply is connected with oil supply system, and oil supply system is connected with the detection display system; Described PLC controller also is connected with each sensor in the oil supply system.
2. electronic controlled diesel oil sprayer check and analysis test stand according to claim 1, it is characterized in that: described oil supply system comprises fuel tank, fuel heater, filter cleaner, high pressure oil pump and motor, described high pressure oil pump is the electric-controlled co-rail high pressure oil pump, described oil transfer pump and fuel heater all place in the fuel tank, and high pressure oil pump, oil transfer pump and fuel heater all are connected with PLC controller in the control system; Described oil transfer pump, filter cleaner and high pressure oil pump are connected by pipeline road successively, and high pressure oil pump is connected on the oil sprayer by pressure duct; Described high pressure oil pump is connected with motor, and motor is connected with power supply;
Also be connected with pressure regulating switch and be provided with oil pressure gauge on high pressure oil pump and pressure duct that oil sprayer is connected or/and oil pressure sensor, pressure regulating switch, oil pressure sensor all are connected with the PLC controller, and pressure regulating switch is arranged on the display screen operating console.
3. electronic controlled diesel oil sprayer check and analysis test stand according to claim 2 is characterized in that: also be connected with flywheel between motor and high pressure oil pump; Perhaps, flexibly connect by floating shelf between described motor and the high pressure oil pump.
4. electronic controlled diesel oil sprayer check and analysis test stand according to claim 2, it is characterized in that: described detection display system comprises oil sprayer fixing frame, atomizing detection device, fuel injection quantity detection device, recirculating oil quantity detection device and oil spout quality detection device, and described spraying detector is located at the rear of atomizing detection device; Described oil sprayer fixing frame is located at the top of atomizing detection device; Tested oil sprayer is fixed on the oil sprayer fixing frame, and connects atomizing detection device, fuel injection quantity detection device and recirculating oil quantity detection device respectively; Described oil spout quality detection device is connected with the recirculating oil quantity detection device with the fuel injection quantity detection device respectively;
Described fuel injection quantity detection device, recirculating oil quantity detection device, oil spout quality detection device are connected with fuel tank by pipeline road respectively;
Described each solenoid valve that is used for oil transportation control is located at the pipeline road that pipeline road that the fuel injection quantity detection device is connected with fuel tank, pipeline road that the recirculating oil quantity detection device is connected with fuel tank and oil spout quality detection device are connected with fuel tank respectively.
5. electronic controlled diesel oil sprayer check and analysis test stand according to claim 4, it is characterized in that: described test stand also comprises the mist of oil air-separating plant that is made of mist of oil air separator and vacuum pump, the mist of oil air separator is connected with vacuum pump, and vacuum pump is connected with the PLC controller; Described mist of oil air separator is connected with the atomizing detection device that detects display system and the fuel tank of oil supply system by pipeline respectively.
6. electronic controlled diesel oil sprayer check and analysis test stand according to claim 5, it is characterized in that: described atomizing detection device comprises observation ward, described observation ward is connected with the mist of oil air separator, the inner and upper of observation ward is fixed with several light emitting diodes, and light emitting diode is connected with the PLC controller; The bottom inside of observation ward is provided with the oil cover;
Described oil spout quality detection device is an electronic balance, described electronic balance is connected with the fuel injection quantity detection device with the recirculating oil quantity detection device respectively by pipeline road, and described recirculating oil quantity detection device is connected with oil sprayer by pipeline road respectively with the fuel injection quantity detection device;
Described recirculating oil quantity detection device is a glass cylinder or electronic console, and described fuel injection quantity detection device is a glass cylinder or electronic console;
Described detection display system also comprises the semiconductor condenser, and described semiconductor condenser is arranged at the place, the filler opening back side of fuel injection quantity detection device and recirculating oil quantity detection device;
Described spraying detector is laser detecting apparatus or High Speed Photography detector.
7. electronic controlled diesel oil sprayer check and analysis test stand according to claim 2, it is characterized in that: described sensor pack oil scraper temperature inductor and oil level inductor, oil warm inductor and oil level inductor all place fuel tank, and all are connected with PLC controller in the control system;
On high pressure oil pump and pressure duct that oil sprayer is connected, also be provided with the oil spout high-pressure safety valve;
Described display screen operating console is provided with several instruction button, and comprising oil temperature alarm, low oil alarm, high oil level alarm, power supply indicator and emergency stop switch, each instruction button all is connected with the PLC controller; Described oil temperature alarm is connected with oily temperature inductor, and low oil alarm all is connected with the oil level inductor with high oil level alarm.
8. electronic controlled diesel oil sprayer check and analysis test stand according to claim 2, it is characterized in that: described stand housing comprises upper body, middle body and lower body, the from top to bottom connection successively of upper body, middle body and lower body, the power supply of described control system, transformer and PLC controller and oil supply system and mist of oil air-separating plant all place lower body inside, on the body, described detection display system was located on the upper body during described display screen operating console was located at;
The upper body of described stand housing also is provided with and is used to cover the plexiglass protective door that detects display system.
9. the controlling method of each described electronic controlled diesel oil sprayer check and analysis test stand of claim 1～8 is characterized in that described method specifically comprises the steps:
(1) starts power supply, select the suitable vehicle model of tested oil sprayer, and vehicle model signal is sent to the PLC controller by the display screen operating console;
(2) the PLC controller is according to vehicle model signal, sends the corresponding setting signal to high pressure oil pump and oil transfer pump, with startup rotating speed that high pressure oil pump and oil transfer pump are set, idling speed, Economy rotating speed, Maximum Torque, peak output with and maximum speed;
(3) the PLC controller sends signal enabling high pressure oil pump and oil transfer pump, and the fuel oil in the fuel tank is pumped to the oil sprayer place along pipeline road and pressure duct successively under the pressure of oil transfer pump and high pressure oil pump;
(4) the PLC controller sends fuel injection signal to oil sprayer, with the oil spout of control oil sprayer;
(5) signal that sends according to the PLC controller of the oil sprayer oil spout of spraying corresponding number of times, the detector of spraying simultaneously, atomizing detection device, fuel injection quantity detection device, recirculating oil quantity detection device and oil spout quality detection device detect oil atomizing granularity and distribution, oil atomizing quality, oil spout volume, recirculating oil quantity and the oil spout quality of oil sprayer respectively; Wherein detect the oil atomizing granularity obtain and distributed data by the statistical analysis of PLC controller, and in the display screen operating console, show the result;
(6) after detection finishes, open each solenoid valve by the control of PLC controller, fuel oil flows back to fuel tank along pipeline road.
10. according to the controlling method of the described electronic controlled diesel oil sprayer of claim 9 check and analysis test stand, it is characterized in that:
Specific as follows to the detection of the oil atomizing granularity of oil sprayer and distribution in the described step (5): oil sprayer is to observation ward's oil spout, and the PLC controller starts the spraying detector; Described spraying detector is collected oil atomizing granularity and distributed data, and sends it in the PLC controller; The PLC controller is to data statistic analysis, and the result is presented on the display screen operating console;
Detection to the oil atomizing quality of oil sprayer in the described step (5) is specific as follows: oil sprayer is to observation ward's oil spout, the PLC controller starts the mist of oil air-separating plant and lights light emitting diode simultaneously, and the mist of oil air-separating plant is with mist of oil in the observation ward and air separation; The oil atomizing quality clearly shows in observation ward, so that the experimenter observes detection;
Detection to the oil spout volume of oil sprayer in the described step (5) is specific as follows: the oil sprayer oil spout, and fuel oil is flowed in the fuel injection quantity detection device along pipeline road by semiconductor condenser cooling back, and shows oil spout volume numerical value in the fuel injection quantity detection device;
Detection to the recirculating oil quantity of oil sprayer in the described step (5) is specific as follows: the oil sprayer oil spout, and fuel oil is flowed in the recirculating oil quantity detection device along pipeline road by semiconductor condenser cooling back, shows oil spout recirculating oil quantity numerical value in the recirculating oil quantity detection device;
Detection to the oil spout quality of oil sprayer in the described step (5) is specific as follows: the oil sprayer oil spout, and fuel oil flows in the oil spout quality detection device along pipeline road, and shows oil spout quality numerical value in the oil spout quality detection device; Described oil spout quality detection device is an electronic balance;
Spraying detector in oil sprayer, the detection display system and the oil transfer pump in the oil supply system are controlled its voltage parameter by transformer;
Described oil temperature inductor, oil level inductor and oil pressure sensor are monitored the temperature and the injection oil pressure of fuel oil respectively, and send coherent signal to the display screen operating console by the PLC controller respectively, shown, regulate and controlled by the display screen operating console.
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