CN103277226B - Common rail fuel injector maintenance system and maintenance method - Google Patents
Common rail fuel injector maintenance system and maintenance method Download PDFInfo
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- CN103277226B CN103277226B CN201310157137.3A CN201310157137A CN103277226B CN 103277226 B CN103277226 B CN 103277226B CN 201310157137 A CN201310157137 A CN 201310157137A CN 103277226 B CN103277226 B CN 103277226B
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Abstract
The invention discloses a common rail fuel injector maintenance system which comprises a measuring tool assembly, a data display device, a data converter and an intelligent terminal, wherein the measuring tool assembly is used for measuring mounting dimension parameters of a common rail fuel injector; the data display device displays measured data obtained through measuring of the measuring assembly and converts the measuring data to SPC digital signals; the data converter automatically reads the SPC digital signals in the data display device under triggering of a triggering device, and converts the SPC digital signals to analog data to be guided into the intelligent terminal; the intelligent terminal processes and analyzes the analog data guided into the intelligent terminal and intelligently reminds an operator of maintenance steps of the common rail fuel injector according to processed and analyzed results. Meanwhile, the invention further discloses a common rail fuel injector maintenance method which comprises a measuring step, a data display step, a data conversion and guiding-in step and a processing and analyzing step. The maintenance system and the maintenance method can achieve intelligent and precise maintenance for the common rail fuel injector, and improve the maintenance quality of the common rail fuel injector.
Description
Technical field
The present invention relates to oil sprayer technical field, particularly relate to a kind of common-rail injector maintenance system and method for maintaining.
Background technique
Electronic control common rail system is the advanced diesel oil electric-controlling injection system being applied to commercial diesel car or riding diesel-oil vehicle, and it forms primarily of high pressure oil pump, electric-controlled co-rail, oil sprayer and electronic control unit.Wherein, high pressure oil pump is responsible for producing high pressure oil, and electric-controlled co-rail is responsible for putting aside high pressure oil, and the accurate injection of fuel oil is responsible for by oil sprayer, and electronic control unit primary responsibility Collaborative Control fuel feeding, pressure accumulation, the opportunity of injection and the size of fuel injection quantity.In above-mentioned each assembly, the working environment of oil sprayer is the harshest, precise requirements is the highest, is the key components and parts of electronic control common rail system.
At present, on market, the type of common-rail injector is more than 200 kinds, the fitted position of often kind of oil sprayer is different, but basic structure can be summarized as five large assemblies: high-speed electromagnetic valve 11, armature component 12, valve group couple 13, oil injector body 14 and oil nozzle couple 15, as shown in Figure 1; Wherein:
High-speed electromagnetic valve 11 produces pulse-electromagnetic force, attracts or armature disc in release armature component 12, with realize armature core in armature component 12 on lift and move down;
Armature component 12 is moving elements that the valve ball realized in valve group couple 13 opens and closes, and its guiding is easy to wear;
Valve group couple 13 controls fuel-injected moving element, the easy abrasion of particles of its ball valve seat face and cause oil return of oil injector amount higher;
Oil injector body 14 is housings of oil sprayer, and there are complicated high pressure and low pressure oil duct in inside, is the main pressure-containing member of high pressure oil, should not damages;
Oil nozzle couple 15 strictly controls the flow of injected fuel and the generation of mist of oil, the easy abrasion of particles of its spray orifice.
Due to reasons such as fuel qualities, driver's maintaining customs, current high-pressure common rail product has inefficacies various in a large number in Chinese market, especially loses efficacy the most serious with oil sprayer.There is 5-6 Fine Boring parameter oil sprayer inside: valve spring force, armature lift, air clearance (part oil sprayer is without the need to adjustment), buffering lift, needle lift and oil nozzle spring force.Wherein, each lift parameter from some tens of pm to hundreds of micron not etc., the variation of several microns all can have influence on the jet performance of oil sprayer significantly.And the jet performance of oil sprayer is also very high to the requirement of spring force size.In the middle of using process, each component of oil sprayer there will be multi-form inefficacy, so the maintenance of oil sprayer typically refers to the replacing to corresponding inefficacy component.After changing component, respective settings parameter can change, and therefore accurate oil sprayer maintenance must adjust corresponding pad and be in correct scope to make each setup parameter.
Maintenance after oil sprayer lost efficacy then normally controls each lift parameter and spring force by the control pad of the respective thickness after change precision measuremnt in the corresponding position of oil sprayer, above-mentioned Fine Boring parameter is made to be returned to normal state, the schematic diagram of each pad as shown in Figure 1, comprises valve spring force adjustment pad 21, air clearance adjustment pad 22, buffering lift adjustment pad 23, armature lift adjustment pad 24, oil nozzle spring force adjustment pad 25 and needle lift adjustment pad 26.
Therefore, in the middle of maintenance process, each corresponding assembly parameter of precision measuremnt, the thickness correctly being calculated each control pad by each size relationship is the key point realizing the maintenance of common-rail injector precision.
But by the restriction of knowledge, technical ability and instrument etc., the maintenance technique of current after-sale service station is uneven, and the usefulness that existing equipment can play is very limited, the oil sprayer performance of therefore keeping in repair out can not get ensureing.The oil sprayer that most driver no longer accepts to keep in repair and would rather directly more renew, has to bear expensive renewal cost thus.In addition a large amount of fault oil sprayer is dropped, and causes the great wasting of resources.
Given this, be necessary to provide a kind of common-rail injector maintenance system and method for maintaining.
Summary of the invention
Main purpose of the present invention is to provide a kind of common-rail injector maintenance system and method for maintaining, is intended to the intelligent precise maintenance realizing common-rail injector, to improve the repair quality of common-rail injector, reduces the wasting of resources of common-rail injector.
For achieving the above object, the invention provides a kind of common-rail injector maintenance system, comprise the measurer assembly, data presentation device, data converter and the intelligent terminal that are connected successively, wherein:
Measurer assembly, for measuring the fitted position parameter of common-rail injector;
Data presentation device, shows the survey data that the measurement of described measurer assembly obtains, and described survey data is converted to SPC (Statistical Process Control, SPC Statistical Process Control) digital signal;
Data converter, automatically reads the SPC digital signal in described data presentation device, imports described intelligent terminal after converting described SPC digital signal to analog data under the triggering of a flip flop equipment;
Intelligent terminal, carries out Treatment Analysis to the analog data imported in it, reminds operator to the maintenance step of common-rail injector according to the result intelligent of Treatment Analysis.
Preferably, the fitted position parameter of described common-rail injector comprises: affect the fitted position parameter of armature lift, affect the fitted position parameter of buffering lift, affect the fitted position parameter of valve spring force, affect the fitted position parameter of oil nozzle spring force, affect the fitted position parameter of needle lift, affect the fitted position parameter of air clearance.
Preferably, described measurer assembly comprises special measuring tool and corresponding calibrating block and spring dedicated tester.
Preferably, described data presentation device is digital display dial gauge.
Preferably, described data converter comprises some special purpose interfaces and and gathers switch, and described data presentation device and described intelligent terminal are connected with described data converter respectively by described special purpose interface; Described collection switch is manual signal transition trigger device.
Preferably, described common-rail injector maintenance system also comprises a signals collecting pedal, and described signals collecting pedal is connected with described data converter, and described signals collecting pedal is the signal transition trigger device of foot-operated mode.
Preferably, described flip flop equipment is described collection switch or described signals collecting pedal, described data converter automatically reads the SPC digital signal in described data presentation device under the triggering of described collection switch or described signals collecting pedal, imports described intelligent terminal after converting described SPC digital signal to analog data.
Preferably, be provided with intelligent maintaining module in described intelligent terminal, described intelligent maintaining module comprises to be changed glib-tonged person module, replacing electromagnet submodule, replacing armature component submodule, replacing valve assembly submodule and completely newly assembles submodule; Described intelligent maintaining module intelligent reminding operator is to the corresponding maintenance step of common-rail injector.
Preferably, data inquiry module and back-end data administration module is also provided with in described intelligent terminal, described data inquiry module is for inquiring about the historical data of passing oil sprayer maintenance, and described back-end data administration module preserves all assembly parameter standards of various types of common-rail injector.
Meanwhile, for achieving the above object, the present invention also provides a kind of method for maintaining of common-rail injector, and utilize above-mentioned common-rail injector maintenance system to keep in repair common-rail injector, the method comprises the steps:
Measurement procedure: be connected with common-rail injector to be repaired by described measurer assembly, measures the fitted position parameter of common-rail injector to be repaired;
Data displaying: show by described data presentation device the survey data that the measurement of described measurer assembly obtains, and described survey data is converted to SPC digital signal;
Data transfer and steps for importing: under the triggering of a flip flop equipment, described data converter reads the SPC digital signal in described data presentation device automatically, imports described intelligent terminal after converting described SPC digital signal to analog data;
Treatment Analysis step: described intelligent terminal carries out Treatment Analysis to the analog data imported in it, reminds operator to the maintenance step of common-rail injector according to the result intelligent of Treatment Analysis; Operator keeps in repair common-rail injector to be repaired according to described maintenance step.
The present invention, owing to adopting above technological scheme, makes it compared with prior art, has following advantage and good effect:
1) the precision maintenance of common-rail injector is after sale realized;
2) realize common-rail injector batch after sale to manufacture again;
3) measurement parameter intelligence, hommization collection, automatically calculate and remind the thickness that should select pad;
4) integrate measurement function, reduce measurer quantity, simplify the operation step;
5) modularization measures requirement, and only measure necessary assembly parameter, workload is reduced as much as possible in pole, improves maintenance efficiency;
6) intelligently guide maintenance step, intelligently guiding operator follows the prescribed order and keeps in repair, simple to operate understandable, threshold is low, desalinate loaded down with trivial details maintenance to the dependence of level professional technology, reduce maintenance threshold.
7) mantenance data can chase after the first day of the lunar month, portable devices.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the basic structure of common-rail injector;
The structural representation of the common-rail injector maintenance system that Fig. 2 provides for one embodiment of the invention;
The structural representation of the common-rail injector maintenance system that Fig. 3 provides for another embodiment of the present invention;
Fig. 4 is the flow chart of the method for maintaining of common-rail injector provided by the invention.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only for explaining the present invention, being not intended to limit the present invention.
Embodiment 1
Please refer to Fig. 2, the structural representation of the common-rail injector maintenance system that Fig. 2 provides for one embodiment of the invention, as shown in Figure 2, the common-rail injector maintenance system that this embodiment provides comprises the measurer assembly 101, data presentation device 102, data converter 103 and the intelligent terminal 104 that are connected successively, wherein:
Measurer assembly 101, for measuring the fitted position parameter of common-rail injector; Wherein, measurer assembly 101 comprises special measuring tool and corresponding calibrating block and spring dedicated tester; Particularly, the fitted position parameter of common-rail injector comprises: affect the fitted position parameter of armature lift, affect the fitted position parameter of buffering lift, affect the fitted position parameter of valve spring force, affect the fitted position parameter of oil nozzle spring force, affect the fitted position parameter of needle lift, affect the fitted position parameter of air clearance.
Data presentation device 102, the survey data obtained measured by display measurer assembly 101, and survey data is converted to SPC (Statistical Process Control, SPC Statistical Process Control) digital signal; Wherein, data presentation device 102 specifically can be digital display dial gauge, and it is accurate displacement measurement measurer, and resolution is 0.001mm, and measuring accuracy is 0.003mm, and range is 0-12.7mm, and dynamometry is below 1.5N, can mark zero, and is with SPC data-signal to export.Certainly, the present invention is not as limit, and other data presentation device is also within protection scope of the present invention.
Data converter 103, automatically reads the SPC digital signal in data presentation device 102, imports intelligent terminal 104 after converting SPC digital signal to analog data under the triggering of a flip flop equipment; Wherein, data converter 103 comprises some special purpose interfaces and and gathers switch, and data presentation device 102 and intelligent terminal 104 are connected with data converter 103 respectively by special purpose interface; Gathering switch is manual signal transition trigger device.
Intelligent terminal 104, carries out Treatment Analysis to the analog data imported in it, reminds operator to the maintenance step of common-rail injector according to the result intelligent of Treatment Analysis.Particularly, this intelligent terminal 104 can be panel computer.
In the present embodiment, flip flop equipment is for gathering switch, and data converter 103 automatically reads the SPC digital signal in data presentation device 102 under the triggering gathering switch, imports intelligent terminal 104 after converting SPC digital signal to analog data.
In the present embodiment, be provided with intelligent maintaining module in intelligent terminal 104, intelligent maintaining module comprises to be changed glib-tonged person module, replacing electromagnet submodule, replacing armature component submodule, replacing valve assembly submodule and completely newly assembles submodule; Intelligent maintaining module intelligent reminding operator is to the corresponding maintenance step of common-rail injector.And be also provided with data inquiry module and back-end data administration module in intelligent terminal 104, data inquiry module is for inquiring about the historical data of passing oil sprayer maintenance, and back-end data administration module preserves all assembly parameter standards of various types of common-rail injector.
Below above-mentioned each assembly is specifically described respectively:
1) measurer assembly 101: be the Special precision measurer suit measuring the concrete fitted position of oil sprayer, comprise 13 special measuring tools and a spring tester; With digital display dial gauge with the use of.It is divided into truck oil sprayer to keep in repair special measuring tool and car oil sprayer maintenance special measuring tool, is specially:
A) truck oil sprayer maintenance special measuring tool, totally 8, be designated as N1 ~ N8, its effect is respectively:
N1, N2, N3: measure three the fitted position parameters affecting armature lift respectively;
N4: coordinate N3 to measure two fitted position parameters of impact buffering lift respectively;
N5, N6: measure two the fitted position parameters affected in three parameters of valve spring force;
N7: measure the dimensional parameters affected in oil nozzle spring force three parameters;
N8: measure the dimensional parameters affecting needle lift.
B) car oil sprayer maintenance special measuring tool, totally 6, be designated as P 1 ~ P6, its effect is respectively:
P1: measure two the fitted position parameters affecting armature lift;
P2: two the fitted position parameters measuring impact buffering lift;
P3: measure the dimensional parameters affecting air clearance;
P4, P5: measure two the fitted position parameters affected in three parameters of valve spring force;
P6: i.e. N7, be one of general measurer of keeping in repair of truck and car, measure the dimensional parameters affected in oil nozzle spring force three parameters.
For the oil sprayer of some type, the special maintenance measurer of truck should be used, also need to use the special maintenance measurer of car.Concrete service regeulations are all intelligently built in the middle of intelligent maintaining module.
Spring dedicated tester: converted by spring tester ripe on market.Spring tester ripe on market of the present invention only can the stiffness coefficient of test spring, can realize following function after repacking:
The length of measuring spring under certain compressive force, and automatically gather to panel computer;
The cylinder measuring valve rod needle-valve pilot sleeve (DGV sleeve) is high, and gathers to panel computer.
Wherein, the repacking step of spring tester is specific as follows:
(1) spring tester calibrated scale is dismantled;
(2) on support, measuring table is installed additional;
(3) on pressure meter sliding sleeve, dial indicator clamping module is installed additional;
(4) specifically defined method of measurement, specifically comprises the following steps:
Step one: shake gauge head under not putting spring, makes pressure meter indicating value be spring target compression force, now dial indicator mark zero;
Step 2: gauge head resets, and places spring to be measured, under to shake gauge head to pressure meter indicating value be spring target compression force, the dial indicator indicating value gathered now is spring length value at a particular pressure.
2) data converter: be used to the Grating Digital signal that automatically reads in digital display dial gauge and convert analog data to and import the dedicated convert equipment of panel computer.Power supply 5V, obtains from dull and stereotyped power supply.Comprise three special purpose interfaces and a collection switch.Special purpose interface connects dial indicator and panel computer respectively.Gathering switch is manual signal transition trigger device, and after survey data is stable, once push switch, namely the reading in digital display dial gauge is automatically imported to panel computer.
3) panel computer and intelligent object: be used for image data, processing data intelligent reminding operator carries out maintenance by step.Wherein panel computer can based on Android operation system.Intelligent object is divided into intelligent maintaining, data query and back-end data to manage three large modules.Wherein intelligent maintaining is the main operational module of client, is subdivided into and changes oil nozzle, changes electromagnet, changes armature component, changes valve assembly and brand-new assembling five functional pattern according to the demand difference of oil sprayer maintenance.Parameter measured by each pattern, the step of operation and the function realized all not identical.Maintenance man can select corresponding pattern according to concrete demand.
Embodiment 2
Please refer to Fig. 3, the structural representation of the common-rail injector maintenance system that Fig. 3 provides for another embodiment of the present invention, as shown in Figure 3, the common-rail injector maintenance system that this embodiment provides comprises the measurer assembly 101, data presentation device 102, data converter 103 and the intelligent terminal 104 that are connected successively, and comprise signals collecting pedal 105, signals collecting pedal 105 is connected with data converter 103, and signals collecting pedal 105 is the signal transition trigger device of foot-operated mode.Wherein:
Measurer assembly 101, for measuring the fitted position parameter of common-rail injector; Wherein, measurer assembly 101 comprises special measuring tool and corresponding calibrating block and spring dedicated tester; Particularly, the fitted position parameter of common-rail injector comprises: affect the fitted position parameter of armature lift, affect the fitted position parameter of buffering lift, affect the fitted position parameter of valve spring force, affect the fitted position parameter of oil nozzle spring force, affect the fitted position parameter of needle lift, affect the fitted position parameter of air clearance.
Data presentation device 102, the survey data obtained measured by display measurer assembly 101, and survey data is converted to SPC (Statistical Process Control, SPC Statistical Process Control) digital signal; Wherein, data presentation device 102 specifically can be digital display dial gauge, and it is accurate displacement measurement measurer, and resolution is 0.001mm, and measuring accuracy is 0.003mm, and range is 0-12.7mm, and dynamometry is below 1.5N, can mark zero, and is with SPC data-signal to export.Certainly, the present invention is not as limit, and other data presentation device is also within protection scope of the present invention.
Data converter 103, automatically reads the SPC digital signal in data presentation device 102, imports intelligent terminal 104 after converting SPC digital signal to analog data under the triggering of a flip flop equipment; Wherein, data converter 103 comprises some special purpose interfaces and and gathers switch, and data presentation device 102 and intelligent terminal 104 are connected with data converter 103 respectively by special purpose interface; Gathering switch is manual signal transition trigger device.
Intelligent terminal 104, carries out Treatment Analysis to the analog data imported in it, reminds operator to the maintenance step of common-rail injector according to the result intelligent of Treatment Analysis.Particularly, this intelligent terminal 104 can be panel computer.
Signals collecting pedal 105 is signal transition trigger devices of foot-operated mode.It is the human oriented design considered based on simple operationization.
In the present embodiment, flip flop equipment is for gathering switch or signals collecting pedal 105, data converter 103 automatically reads the SPC digital signal in data presentation device 102 under the triggering gathering switch or signals collecting pedal 105, imports intelligent terminal 104 after converting SPC digital signal to analog data.Particularly, when maintenance man's hand is available free, can use and gather switch as flip flop equipment, when maintenance man's both hands all cannot be available triggering collection switch, signals collecting pedal 105 can be used as flip flop equipment, now only need ride signals collecting pedal 105 and get final product the automatic SPC digital signal read in data presentation device 102 of trigger data transducer 103, after converting SPC digital signal to analog data, import intelligent terminal 104.
In the present embodiment, be provided with intelligent maintaining module in intelligent terminal 104, intelligent maintaining module comprises to be changed glib-tonged person module, replacing electromagnet submodule, replacing armature component submodule, replacing valve assembly submodule and completely newly assembles submodule; Intelligent maintaining module intelligent reminding operator is to the corresponding maintenance step of common-rail injector.And be also provided with data inquiry module and back-end data administration module in intelligent terminal 104, data inquiry module is for inquiring about the historical data of passing oil sprayer maintenance, and back-end data administration module preserves all assembly parameter standards of various types of common-rail injector.
Illustrating of above-mentioned each assembly is identical with embodiment 1, and difference is: data converter comprises three special purpose interfaces and a collection switch.Special purpose interface connects digital display dial gauge, panel computer and signals collecting pedal 105 respectively.
The design of the measurer in above-described embodiment 1 and embodiment 2 specifically comprises following flow process:
A. analyze the common-rail injector structure on market and classify;
B. the fitted position parameter of Learning Studies common-rail injector;
C. the boundary dimensions of each fitted position parameter correlation is measured with oil sprayer;
D. the special measuring tool for the parameter measurement of each feature fitted position designs;
E. measurer goes out sample → use sample first and goes out sample → examination measurement to target oil sprayer size examination measurement → Design of Measuring Tools improvement → second time ... → the final shaping.
Please continue to refer to Fig. 4, Fig. 4 is the flow chart of the method for maintaining of common-rail injector provided by the invention, as shown in Figure 4, the invention provides a kind of method for maintaining of common-rail injector, utilize above-mentioned common-rail injector maintenance system to keep in repair common-rail injector, the method comprises the steps:
S1 measurement procedure: be connected with common-rail injector to be repaired by measurer assembly, measures the fitted position parameter of common-rail injector to be repaired;
S2 data displaying: show by data presentation device the survey data that the measurement of described measurer assembly obtains, and survey data is converted to SPC digital signal;
S3 data transfer and steps for importing: under the triggering of a flip flop equipment, data converter reads the SPC digital signal in data presentation device automatically, imports described intelligent terminal after converting SPC digital signal to analog data;
S4 Treatment Analysis step: intelligent terminal carries out Treatment Analysis to the analog data imported in it, reminds operator to the maintenance step of common-rail injector according to the result intelligent of Treatment Analysis; Operator keeps in repair common-rail injector to be repaired according to described maintenance step.
In said method, the arrangement of oil sprayer assembly parameter database and the definition of maintenance step specifically comprise following flow process:
A. learn and collect the assembling setup parameter of each model oil sprayer, be organized into database;
B. according to concrete repairing requirement, combing defines corresponding influenced parameter, arranges and is generalized into document;
C. study the logical relation between each assembly parameter, define the computational methods of each spacer thickness;
D. oil sprayer installation step is organized into document.
Illustrate the method for maintaining of this common-rail injector below for a truck oil sprayer 20078, the method comprises the following steps:
1) open panel computer and connect equipment.Computer starts intelligent object automatically.Click intelligent maintaining module and enter maintenance procedure.
2) input oil sprayer model 20078 and determine, maintenance starts.Intelligent maintaining module is automatically imported all assembly parameter standards about 20078 in background data base.
3) enter the first step, screw in oil sprayer the retaining screw compressing valve assembly, what intelligent maintaining module prompts operator was detailed tightens specification.
4) enter second step, armature lift is measured, and specifically comprises:
A) N10 value is measured: select measurer N1 by prompting, dial indicator selects REV pattern.Use calibrating block mark zero, fathom value, and step pedal collection value imports N10 cell; Wherein, N10 cell is the cell shown in the intelligent maintaining module in panel computer, and the value that measurer N1 measures imports in this cell; Other cell below mentioned does similar explanation, repeats no more;
B) jump into N20 cell and measure N20 value: select measurer N2 by prompting, dial indicator selects normal mode.Use calibrating block mark zero, measuring height value, step pedal collection value imports N20 cell;
C) jump into N30 cell and measure N30 value: select measurer N3 by prompting, dial indicator selects normal mode.Use calibrating block mark zero, measuring height value, step pedal collection value imports N30 cell;
D) after completing above-mentioned measurement, intelligent maintaining module backstage automatically calculates and points out " armature lift spacer thickness should be xxxx mm ", please selects the pad of suitable thickness in accordance with prompting and is fitted in oil sprayer.
5) enter the 3rd step, cross lift and measure, specifically comprise:
A) N40 value is measured: select measurer N4 by prompting, dial indicator selects REV pattern.Use calibrating block mark zero, fathom value, and step pedal collection value imports N40 cell;
B) after completing above-mentioned measurement, intelligent maintaining module backstage automatically calculates and points out " cross lift spacer thickness and should be xxxx mm ", please selects the pad of suitable thickness in accordance with prompting and is fitted in oil sprayer.
6) enter the 4th step, valve spring gasket measuring, specifically comprises:
A) N50 value is measured: select measurer N5 by prompting, dial indicator selects REV pattern.Use calibrating block mark zero, fathom value, and step pedal collection value imports N50 cell;
B) jump into N60 cell and measure N60 value: select measurer N6 by prompting, dial indicator selects normal mode.Use calibrating block mark zero, measuring height value, step pedal collection value imports N60 cell;
C) jump into S01 cell and measure S01 value: select measurer S0 and spring tester by prompting, dial indicator selects REV pattern.Measure the length value at specified compression power lower spring, step pedal collection value imports S01 cell;
D) after completing above-mentioned measurement, intelligent maintaining module backstage automatically calculates and points out " valve spring force spacer thickness should be xxxx mm ", please selects the pad of suitable thickness in accordance with prompting and is fitted in oil sprayer.
7) enter the 5th step, screw the very tight cap of electromagnetism.What intelligent maintaining module prompts operator was detailed tightens specification.
8) enter the 6th step, oil nozzle compression spring is measured, and specifically comprises:
A) N70 value is measured: select measurer N7 by prompting, dial indicator selects REV pattern.Use calibrating block mark zero, fathom value, and step pedal collection value imports N70 cell;
B) jump into S02 cell and measure S02 value: select measurer S0 by prompting, dial indicator selects REV pattern.Measure the length value at specified compression power lower spring, step pedal collection value imports S02 cell;
C) jump into S03 cell and measure S03 value: select measurer S0 and spring tester by prompting, dial indicator selects REV pattern.Measure the cylinder height value of DGV sleeve, step pedal collection value imports S03 cell;
D) after completing above-mentioned measurement, intelligent maintaining module backstage automatically calculates and points out " oil nozzle spring force spacer thickness should be xxxx mm ", please selects the pad of suitable thickness in accordance with prompting and is fitted in oil sprayer.
9) enter the 7th step, needle lift is measured, and specifically comprises:
A) N80 value is measured: select measurer N8 by prompting, dial indicator selects REV pattern.Use calibrating block mark zero, fathom value, and step pedal collection value imports N80 cell;
B) after completing above-mentioned measurement, intelligent maintaining module backstage automatically calculates and points out " needle lift spacer thickness should be xxxx mm ", please selects the pad of suitable thickness in accordance with prompting and is fitted in oil sprayer.
10) enter the 8th step, screw the tight cap of oil nozzle.What intelligent maintaining module prompts operator was detailed tightens specification.
11) measure assembling to complete.Calculated value after all measurements of interface display.Can select to preserve or directly exit.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention.Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a common-rail injector maintenance system, is characterized in that, comprises the measurer assembly, data presentation device, data converter and the intelligent terminal that are connected successively, wherein:
Measurer assembly, for measuring the fitted position parameter of common-rail injector;
Data presentation device, shows the survey data that the measurement of described measurer assembly obtains, and described survey data is converted to SPC digital signal;
Data converter, automatically reads the SPC digital signal in described data presentation device, imports described intelligent terminal after converting described SPC digital signal to analog data under the triggering of a flip flop equipment;
Intelligent terminal, carries out Treatment Analysis to the analog data imported in it, reminds operator to the maintenance step of common-rail injector according to the result intelligent of Treatment Analysis.
2. common-rail injector maintenance system as claimed in claim 1, it is characterized in that, the fitted position parameter of described common-rail injector comprises: affect the fitted position parameter of armature lift, affect the fitted position parameter of buffering lift, affect the fitted position parameter of valve spring force, affect the fitted position parameter of oil nozzle spring force, affect the fitted position parameter of needle lift, affect the fitted position parameter of air clearance.
3. common-rail injector maintenance system as claimed in claim 2, is characterized in that, described measurer assembly comprises special measuring tool and corresponding calibrating block and spring dedicated tester.
4. common-rail injector maintenance system as claimed in claim 1, it is characterized in that, described data presentation device is digital display dial gauge.
5. common-rail injector maintenance system as claimed in claim 1, it is characterized in that, described data converter comprises some special purpose interfaces and and gathers switch, and described data presentation device and described intelligent terminal are connected with described data converter respectively by described special purpose interface; Described collection switch is manual signal transition trigger device.
6. common-rail injector maintenance system as claimed in claim 5, it is characterized in that, described common-rail injector maintenance system also comprises a signals collecting pedal, and described signals collecting pedal is connected with described data converter, and described signals collecting pedal is the signal transition trigger device of foot-operated mode.
7. common-rail injector maintenance system as claimed in claim 6, it is characterized in that, described flip flop equipment is described collection switch or described signals collecting pedal, described data converter automatically reads the SPC digital signal in described data presentation device under the triggering of described collection switch or described signals collecting pedal, imports described intelligent terminal after converting described SPC digital signal to analog data.
8. common-rail injector maintenance system as claimed in claim 1, it is characterized in that, be provided with intelligent maintaining module in described intelligent terminal, described intelligent maintaining module comprises to be changed glib-tonged person module, replacing electromagnet submodule, replacing armature component submodule, replacing valve assembly submodule and completely newly assembles submodule; Described intelligent maintaining module intelligent reminding operator is to the corresponding maintenance step of common-rail injector.
9. common-rail injector maintenance system as claimed in claim 8, it is characterized in that, data inquiry module and back-end data administration module is also provided with in described intelligent terminal, described data inquiry module is for inquiring about the historical data of passing oil sprayer maintenance, and described back-end data administration module preserves all assembly parameter standards of various types of common-rail injector.
10. a method for maintaining for common-rail injector, utilize common-rail injector maintenance system as claimed in claim 1 to keep in repair common-rail injector, it is characterized in that, the method comprises the steps:
Measurement procedure: be connected with common-rail injector to be repaired by described measurer assembly, measures the fitted position parameter of common-rail injector to be repaired;
Data displaying: show by described data presentation device the survey data that the measurement of described measurer assembly obtains, and described survey data is converted to SPC digital signal;
Data transfer and steps for importing: under the triggering of a flip flop equipment, described data converter reads the SPC digital signal in described data presentation device automatically, imports described intelligent terminal after converting described SPC digital signal to analog data;
Treatment Analysis step: described intelligent terminal carries out Treatment Analysis to the analog data imported in it, reminds operator to the maintenance step of common-rail injector according to the result intelligent of Treatment Analysis; Operator keeps in repair common-rail injector to be repaired according to described maintenance step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310157137.3A CN103277226B (en) | 2013-05-02 | 2013-05-02 | Common rail fuel injector maintenance system and maintenance method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310157137.3A CN103277226B (en) | 2013-05-02 | 2013-05-02 | Common rail fuel injector maintenance system and maintenance method |
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| CN103277226B true CN103277226B (en) | 2015-03-18 |
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| CN108716443A (en) * | 2018-04-09 | 2018-10-30 | 江苏伟博智能装备科技有限公司 | A kind of in-situ detection method and device of common-rail injector armature lift |
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| FR2653168A1 (en) * | 1989-10-13 | 1991-04-19 | Gary Alain | DEVICE FOR CLEANING AND CONTROLLING INJECTORS FOR PETROL ENGINES. |
| JPH08506639A (en) * | 1992-06-05 | 1996-07-16 | ザ・トライアングル・コーポレーション・ドゥーイング・ビジネス・アズ・トライアングル・スペシャル・プロダクツ・グループ・アンド・トライアングル・スペシャル・プロダクツ・コーポレーション | Fuel injector cleaning and testing system and apparatus |
| CN2516726Y (en) * | 2001-04-06 | 2002-10-16 | 梁前超 | Digital testing stage for fuel injector of diesel engine |
| US6647769B1 (en) * | 1999-10-26 | 2003-11-18 | Yamaha Marine Kabushiki Kaisha | Failure diagnostic system for engine |
| CN201318237Y (en) * | 2008-12-03 | 2009-09-30 | 大连理工大学 | High-pressure common-rail oil injecting volume checking system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2653168A1 (en) * | 1989-10-13 | 1991-04-19 | Gary Alain | DEVICE FOR CLEANING AND CONTROLLING INJECTORS FOR PETROL ENGINES. |
| JPH08506639A (en) * | 1992-06-05 | 1996-07-16 | ザ・トライアングル・コーポレーション・ドゥーイング・ビジネス・アズ・トライアングル・スペシャル・プロダクツ・グループ・アンド・トライアングル・スペシャル・プロダクツ・コーポレーション | Fuel injector cleaning and testing system and apparatus |
| US6647769B1 (en) * | 1999-10-26 | 2003-11-18 | Yamaha Marine Kabushiki Kaisha | Failure diagnostic system for engine |
| CN2516726Y (en) * | 2001-04-06 | 2002-10-16 | 梁前超 | Digital testing stage for fuel injector of diesel engine |
| CN201318237Y (en) * | 2008-12-03 | 2009-09-30 | 大连理工大学 | High-pressure common-rail oil injecting volume checking system |
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