CN108716443A - A kind of in-situ detection method and device of common-rail injector armature lift - Google Patents
A kind of in-situ detection method and device of common-rail injector armature lift Download PDFInfo
- Publication number
- CN108716443A CN108716443A CN201810312276.1A CN201810312276A CN108716443A CN 108716443 A CN108716443 A CN 108716443A CN 201810312276 A CN201810312276 A CN 201810312276A CN 108716443 A CN108716443 A CN 108716443A
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- China
- Prior art keywords
- amesdial
- armature
- probe
- lift
- common
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/005—Measuring or detecting injection-valve lift, e.g. to determine injection timing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of in-situ detection methods of common-rail injector armature lift comprising following steps：S1, prepare fuel injector and armature lift measuring tool to be measured；S2, the component of fuel injector coil is unloaded successively；S3, amesdial mounting base is screwed into the threaded hole in coil, ensures that mounting base does not loosen；S4, it takes out amesdial and extends probe, shed amesdial block and detecting head, probe will be extended on amesdial table bar, tightened；S5, amesdial is inserted into gauge stand, it is ensured that have downward stroke, tighten hand screw；S6, amesdial booting, are then zeroed, it is ensured that measurer amesdial numerical value in origin position is shown as zero；S7, the table bar for pressing top protrusion with index finger hear the sound of armature disc contact, read the numerical value of display to lower dead center.Step of the present invention is simple, and not needing professional can operate, and be easy to learn and use, and reduces human cost, and utilization rate is higher.
Description
Technical field
The present invention relates to a kind of in-situ detection methods and device of common-rail injector armature lift.
Background technology
Nowadays under the market environment that common rail system is largely popularized, the maintenance requirements of common-rail injector greatly increase.Relatively
Mechanical pump is the most accurate complicated in old-fashioned mechanical system, and in common rail system, common-rail injector is the most accurate complicated.
The oil mass that supply engine can be accurately controlled in common-rail injector normal work, improves fuel efficiency, reduces useless
Gas formula, it is economic and environment-friendly.And common-rail injector will work normally the reasonable cooperation for needing all parts, including solenoid valve, armature
Component, valve module, oily nozzle etc., have rational fit clearance, various components to pass through in optimum clearance region between various components
Interior movement, to realize that fuel injector works normally.
Armature lift is a gap of armature component work and a most important gap.The dimension of common-rail injector
Repair firstly the need of it is determining be exactly this gap of armature lift in the reasonable scope, maintenance personal is by breaking mostly at this stage
Then fuel injector uses tool to measure the size of each different components, records data, later obtain is calculated by establishing functional relation
Go out corresponding armature lift.
But existing method is all more complicated, so invention is a kind of simple and fast, measurement rank easily and effectively
The method of iron lift, the i.e. in-situ detection method of common-rail injector armature lift, and the measurer invented by using this method,
The first patch lift of fuel injector can be quickly detected.
Invention content
The technical problem to be solved by the present invention is to overcome the defects of the prior art, provide a kind of common-rail injector armature lift
In-situ detection method and its measurer.
In order to solve the above technical problem, the present invention provides the following technical solutions：
One aspect of the invention discloses a kind of in-situ detection method of common-rail injector armature lift, fuel injector magnetic system
After the seal member of upper end is removed, the upper surface of armature component is stretched into inside fuel injector and touched by tool；Work is pressed at this time
Tool, probe meeting light exercise, and this movement clearance is armature lift.
Further, following steps are specifically included：
S1, prepare fuel injector and armature lift measuring tool to be measured；
S2, the sealing of fuel injector coil, screw, spring, armature core head cover are unloaded successively；
S3, amesdial mounting base is taken out from instrument cases, is screwed into the threaded hole in coil, be screwed to bottom, ensure mounting base
It does not loosen；
S4, amesdial is taken out from instrument cases and extends probe, shed amesdial block and detecting head, will extend probe and be mounted in thousand points
On table table bar, tighten；
S5, amesdial is inserted into gauge stand, insertion depth is advisable with the table bar ejection 4-7mm on table top, it is ensured that there is downward stroke,
Tighten hand screw；
S6, amesdial booting, are then zeroed, it is ensured that measurer amesdial numerical value in origin position is shown as zero；
S7, the table bar for pressing top protrusion with index finger hear the sound of armature disc contact, read the numerical value 50 of display to lower dead center
μm, which, which is the lift of armature disc, to reduce measurement error mostly by mean value several times, is taken.
Another aspect of the present invention discloses a kind of common-rail injector armature lift measuring tool comprising amesdial, pinching screw,
U-clamp, circle folder, amesdial mounting base and amesdial probe；External screw thread is carried on the amesdial probe, by the probe
It is screwed into the amesdial, is installed into dial gage base after amesdial is then passed through U-clamp, tightening pinching screw can start
It measures.
The advantageous effect that is reached of the present invention is：
The method of the present invention is after the seal member of fuel injector magnetic system upper end is removed, to be stretched into inside fuel injector simultaneously by tool
Touch the upper surface of armature component；And having spring inside armature component, the spring force of the spring is to upper end, thus by armature component
It supports；Press tool at this time, probe meeting light exercise, and this movement clearance is armature lift.The side of this invention
Method need not break fuel injector, it is only necessary to a simple tool and simple several steps, so that it may accurately to obtain altogether
The armature lift of rail injector.
The method have the advantages that：
1）Testing time is short.Test process need not break fuel injector, directly measure, it is only necessary to short a few minutes；
2）Measuring accuracy is stablized, and error is small.Since fuel injector need not be broken, a stroke only need to be measured, causes the general of error
Rate greatly reduces.
The measurer of the present invention has the following advantages：
1）Using simple.Since step is simple, not needing professional can operate, and be easy to learn and use, and reduce human cost, utilize
Rate is higher.
2）It is at low cost, since measurer is simple, so processing cost is low, price economy material benefit.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of the present invention.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
As shown in Figure 1, a kind of common-rail injector armature lift measuring tool comprising amesdial 1, pinching screw 2, U-clamp 3,
Circle folder 4, amesdial mounting base 5 and amesdial probe 6；External screw thread is carried on the amesdial probe 6, by the amesdial
Probe 6 is screwed into the amesdial 1, is installed into amesdial mounting base 5 after amesdial 1 is then passed through U-clamp 3, screw down clips
Tight screw 2 can start to measure.
Another aspect of the invention discloses a kind of in-situ detection method of common-rail injector armature lift, fuel injector
After the seal member of solenoid valve upper end is removed, the upper surface of armature component is stretched into inside fuel injector and touched by tool；At this time
Press tool, probe meeting light exercise, and this movement clearance is armature lift.
Further, following steps are specifically included：
S1, prepare fuel injector and armature lift measuring tool to be measured；
S2, the sealing of fuel injector coil, screw, spring, armature core head cover are unloaded successively；
S3, amesdial mounting base is taken out from instrument cases, is screwed into the threaded hole in coil, be screwed to bottom, ensure mounting base
It does not loosen；
S4, amesdial is taken out from instrument cases and extends probe, shed amesdial block and detecting head, will extend probe and be mounted in thousand points
On table table bar, tighten；
S5, amesdial is inserted into gauge stand, insertion depth is advisable with the table bar ejection 4-7mm on table top, it is ensured that there is downward stroke,
Tighten hand screw；
S6, the power knob " on/off " by the upper left corner open amesdial and press the lower left corner " PEAK " button, selection normal work mould
Formula presses " zero " button among bottom, and numerical value is reset；
S7, the table bar for pressing top protrusion with index finger hear the sound of armature disc contact, read the numerical value 50 of display to lower dead center
μm, which, which is the lift of armature disc, to reduce measurement error mostly by mean value several times, is taken.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (3)
1. a kind of in-situ detection method of common-rail injector armature lift, which is characterized in that specifically include following steps：
S1, prepare fuel injector and armature lift measuring tool to be measured；
S2, the sealing of fuel injector coil, screw, spring, armature core head cover are unloaded successively；
S3, amesdial mounting base is taken out from instrument cases, is screwed into the threaded hole in coil, be screwed to bottom, ensure mounting base
It does not loosen；
S4, amesdial is taken out from instrument cases and extends probe, shed amesdial block and detecting head, will extend probe and be mounted in thousand points
On table table bar, tighten；
S5, amesdial is inserted into gauge stand, insertion depth is advisable with the table bar ejection 4-7mm on table top, it is ensured that there is downward stroke,
Tighten hand screw；
S6, amesdial booting, are then zeroed, it is ensured that measurer amesdial numerical value in origin position is shown as zero；
S7, the table bar for pressing top protrusion with index finger hear the sound of armature disc contact, read the numerical value 50 of display to lower dead center
μm, which, which is the lift of armature disc, to reduce measurement error mostly by mean value several times, is taken.
2. a kind of in-situ detection method of common-rail injector armature lift according to claim 1, which is characterized in that spray
After the seal member of oily device solenoid valve upper end is removed, the upper surface of armature component is stretched into inside fuel injector and touched by tool；
Press tool at this time, probe meeting light exercise, and this movement clearance is armature lift.
3. a kind of common-rail injector armature lift detection device, which is characterized in that including amesdial, pinching screw, U-clamp, circle
Clevis, amesdial mounting base and amesdial probe；External screw thread is carried on the amesdial probe, and the amesdial probe is twisted
Into in the amesdial, it is installed into amesdial mounting base after amesdial is then passed through U-clamp, tightening pinching screw can open
Begin to measure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810312276.1A CN108716443A (en) | 2018-04-09 | 2018-04-09 | A kind of in-situ detection method and device of common-rail injector armature lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810312276.1A CN108716443A (en) | 2018-04-09 | 2018-04-09 | A kind of in-situ detection method and device of common-rail injector armature lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108716443A true CN108716443A (en) | 2018-10-30 |
Family
ID=63898842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810312276.1A Pending CN108716443A (en) | 2018-04-09 | 2018-04-09 | A kind of in-situ detection method and device of common-rail injector armature lift |
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| CN (1) | CN108716443A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013007341A (en) * | 2011-06-24 | 2013-01-10 | Denso Corp | Fuel-injection-condition estimating apparatus |
| CN102996310A (en) * | 2012-12-04 | 2013-03-27 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Method for measuring armature travel of oil injector assembly |
| CN103277226A (en) * | 2013-05-02 | 2013-09-04 | 上海星泽信息技术有限公司 | Common rail fuel injector maintenance system and maintenance method |
| CN204677349U (en) * | 2015-06-04 | 2015-09-30 | 机科发展科技股份有限公司 | A kind of common-rail injector armature lift rechecking device |
| CN205478054U (en) * | 2016-03-13 | 2016-08-17 | 聊城科瑞汽车零部件有限公司 | Device is reinspected to common rail injector armature lift |
| CN107387283A (en) * | 2017-08-28 | 2017-11-24 | 机科发展科技股份有限公司 | Common-rail injector grommet is matched and armature lift range measuring apparatus |
-
2018
- 2018-04-09 CN CN201810312276.1A patent/CN108716443A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013007341A (en) * | 2011-06-24 | 2013-01-10 | Denso Corp | Fuel-injection-condition estimating apparatus |
| CN102996310A (en) * | 2012-12-04 | 2013-03-27 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Method for measuring armature travel of oil injector assembly |
| CN103277226A (en) * | 2013-05-02 | 2013-09-04 | 上海星泽信息技术有限公司 | Common rail fuel injector maintenance system and maintenance method |
| CN204677349U (en) * | 2015-06-04 | 2015-09-30 | 机科发展科技股份有限公司 | A kind of common-rail injector armature lift rechecking device |
| CN205478054U (en) * | 2016-03-13 | 2016-08-17 | 聊城科瑞汽车零部件有限公司 | Device is reinspected to common rail injector armature lift |
| CN107387283A (en) * | 2017-08-28 | 2017-11-24 | 机科发展科技股份有限公司 | Common-rail injector grommet is matched and armature lift range measuring apparatus |
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Application publication date: 20181030 |
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