CN100566924C - Be used to assemble device with disassemble fuel injection valve - Google Patents
Be used to assemble device with disassemble fuel injection valve Download PDFInfo
- Publication number
- CN100566924C CN100566924C CNB2006100594950A CN200610059495A CN100566924C CN 100566924 C CN100566924 C CN 100566924C CN B2006100594950 A CNB2006100594950 A CN B2006100594950A CN 200610059495 A CN200610059495 A CN 200610059495A CN 100566924 C CN100566924 C CN 100566924C
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- CN
- China
- Prior art keywords
- nozzle
- female part
- fuelinjection
- hold down
- propulsion plant
- 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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Links
- 239000000446 fuel Substances 0.000 title claims abstract description 17
- 238000002347 injection Methods 0.000 title claims abstract description 9
- 239000007924 injection Substances 0.000 title claims abstract description 9
- 238000012423 maintenance Methods 0.000 claims abstract description 17
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 235000019788 craving Nutrition 0.000 claims description 10
- 239000000758 substrate Substances 0.000 description 8
- 238000001574 biopsy Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 239000003550 marker Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
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- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/852—Mounting of fuel injection apparatus provisions for mounting the fuel injection apparatus in a certain orientation, e.g. markings or notches
-
- 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
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/02—Injectors structurally combined with fuel-injection pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Be used to assemble or the device of disassemble fuel injection valve, this Fuelinjection nozzle comprises that one is used for nozzle for jetting fuel and a maintenance body (16), wherein, this nozzle (15) has a longitudinal axis (19) and can be kept on the body (16) at this by axial compression by means of a nozzle clamp jack panel (9).This device has: a clamping device (4; 5), be used for fixing this Fuelinjection nozzle (8; 70), wherein, this Fuelinjection nozzle (8; 70) in the zone of this maintenance body (16), be held; A nozzle female part (25) is used for a longitudinal force is incorporated into this nozzle (15).At this, hold down gag (20; 20 ') produce one predetermined determine act on thrust on the nozzle female part (25) so that can assemble or dismantle this nozzle.
Description
Technical field
The present invention relates to a kind of device that is used to assemble with disassemble fuel injection valve.
Background technology
In modern diesel engine, fuel directly under high pressure is ejected in the combustion chamber by a Fuelinjection nozzle.Fuelinjection nozzle uses in various different spraying systems, for example use in common rail system or so-called unit injector (UI), this unit injector claims also to be the unit fuel injector unit that in this unit injector, Fuelinjection nozzle and pump constitute a unit.Fuelinjection nozzle is made of a plurality of parts, mainly constitute by a nozzle and a maintenance body, be configured with some spray-holes and be provided with a nozzle needle of closing or open these spray-holes in this nozzle in this nozzle, this maintenance body comprises that parts and fuel interface that some other are different are positioned on this maintenance body.Nozzle is pressed in by a nozzle clamp jack panel and keeps on the body, wherein needs suitably high Tightening moment, so that obtain the corresponding high axial force between nozzle and the maintenance body.This is necessary, so that the positiver sealing on the contact-making surface between assurance nozzle and the maintenance body.
Extending some passages in keeping body and nozzle, fuel is led spray-hole at last through these passages.Because the passage in nozzle and the maintenance body must be aligned with each other exactly, so one or more holding pins are set usually, described holding pin not only reaches in the nozzle but also reach in the maintenance body, guarantees thus to aim at accurately.
When factory made, nozzle kept on the body in order to assemble to be pressed in advance with a definite power, and for example the power with 700N compresses in advance in co-rail ejector.Avoid the pre-damage of holding pin between nozzle and maintenance body thus.Simultaneously, this assembly force has got rid of during fastening nozzle clamp jack panel because nozzle that abrasive particle or dust cause and the pollution between the injector body, and this pollution can cause injector to lose efficacy in advance.The nozzle clamp jack panel is screwed on little moment of torsion, and is then fastening and make the nozzle unloading at last with the angle of determining.For the nozzle clamp jack panel of UI (unit injector or unit fuel injector unit), can handle in the same way, but need the thrust of a 8kN to 15kN at this.
Usually need to change nozzle when maintenance co-rail ejector or unit fuel injector unit, this compares the unit with integral replacing injector or unit fuel injector and has obviously reduced cost.If simply the nozzle clamp jack panel is unscrewed, then because high clamping force nozzle can occur along with rotation and holding pin are cut off thus together.For fear of this phenomenon, need special auxiliary equipment.
Summary of the invention
Therefore, task of the present invention is, a kind of device is provided, and this device allows inexpensively and the nozzle of refuelling injection valve mildly.
According to the present invention, propose a kind ofly to be used to assemble or the device of disassemble fuel injection valve, these Fuelinjection nozzles comprise that one is used for nozzle for jetting fuel and a maintenance body, wherein, this nozzle have a longitudinal axis and can by means of a nozzle clamp jack panel by axial compression on this maintenance body, wherein, this device has: a clamping device, be used for fixing this Fuelinjection nozzle, wherein, this Fuelinjection nozzle is held in the zone of this maintenance body; A hold down gag, be used to produce one definite, in the thrust that acts on the direction of this longitudinal axis on this nozzle.
For this reason, apparatus of the present invention have a clamping device, and Fuelinjection nozzle can be fixed in this clamping device.Preferably keep the body part that is connected with this maintenance body clamped or Fuelinjection nozzle clamped at this, but be not that nozzle clamp jack panel or nozzle are clamped.This device also comprises a hold down gag, a definite thrust can be applied on the nozzle in the axial direction by this hold down gag.It is important in this that this thrust is corresponding to a definite value given in advance: on the one hand, do not damage the danger of holding pin in order mildly to dismantle the nozzle clamp jack panel, thrust does not allow too small; On the other hand, the distortion that is caused by this thrust of nozzle does not allow excessive, to avoid the especially damage of nozzle needle.
Therefore, can fast and there be the nozzle of replacing jeopardously that damages Fuelinjection nozzle by apparatus of the present invention.This device can easily be operated and also be suitable in the workshop thus at this.
Advantageously, this hold down gag comprises a nozzle female part, and this nozzle female part is admitted the part of described nozzle, and this nozzle female part can move on the direction of the longitudinal axis of this nozzle by means of a propulsion plant.
Advantageously, this propulsion plant is a screw.
Advantageously, this propulsion plant is a leading screw.
Advantageously, a tensioning spring is placed between this nozzle female part and this propulsion plant like this, makes that this tensioning spring is compacted by described propulsion plant when this nozzle female part rests on the Fuelinjection nozzle.
Advantageously, this nozzle female part rests on the backstop after being expert at and crossing a predetermined distance at least indirectly, make this tensioning spring compacted a predetermined distance.
Advantageously, a horn craving scale can be fixed on this nozzle clamp jack panel the anglec of rotation that can read this nozzle clamp jack panel on this horn craving scale.
Thrust can produce by a tensioning spring that has compressed a preset distance in an advantageous manner.This tensioning spring is arranged between the nozzle female part and propulsion plant that rests on the nozzle at this.Obtain a definite thrust thus, this thrust acts on the nozzle.This thrust also can be produced by hydraulically-loaded piston by means of one, and this allows higher power than spring part when measuring clearly.
As propulsion plant, housing screw is suitable for not too big power, especially is suitable for co-rail ejector, and therefore, this device can be fully with hand operated and without any need for motor or similar actuator.The expense that this has obviously simplified the use in the workshop and has reduced procuring equipment.
Description of drawings
Two embodiment of apparatus of the present invention have been shown in the accompanying drawing.Accompanying drawing is represented:
The side view of apparatus of the present invention of Fig. 1, wherein, hold down gag by biopsy cavity marker devices illustrate,
The side view with respect to Fig. 1 half-twist of this device of Fig. 2,
A three-dimensional view of this device of Fig. 3,
The three-dimensional view of the biopsy cavity marker devices of second embodiment of apparatus of the present invention of Fig. 4.
The specific embodiment
A side view of apparatus of the present invention has been shown among Fig. 1.Fig. 2 shows the view of the half-twist of this device, Fig. 3 shows the stereogram of same device, all these three accompanying drawings are described together thus, wherein it should be noted that some part of this device only can be in sight in one or two in these accompanying drawings.This device has a basic frame, and this basic frame comprises a guide post 1 and a substrate 2, and wherein guide post 1 has screw thread on its whole length.On substrate 2, can be fixed with a holding element 17, so that this device can be clamped in the vice.If this device directly is fixed on the workbench, then in substrate 2, there are some holes for this reason.Screw on substrate 2 or be fixed with first clamping device 4 that is used for Fuelinjection nozzle in addition, wherein exemplarily show an injector 8 at this, it uses in common-rail injection system.This first clamping device 4 comprises a wing nut 40, by means of this wing nut a screw that is directed in screw element 41 42 is rotated.Make gripper clamp piece 44 motion thus, injector 8 is clamped between this gripper clamp piece and the counterpart 45.For further fixing, be provided with one second clamping device 5, this second clamping device is fixed on the keeping arm 6.This keeping arm 6 can move on guide post 1 and in height can regulate thus by a pilot sleeve 7.By means of the rotation of pilot sleeve 7, this second clamping device can be complementary with different injectors.Keeping arm 6 is placed on the pilot sleeve 7 rotationally, so this keeping arm 6 can inwardly be swung with fixing injector 8.Second holding device 5 comprises a camber member 53, and this camber member can move with respect to keeping arm 6, can a gripper clamp piece 51 be moved by milled screw 50 thus, is fixed with a guide plate 52 on this gripper clamp piece.Injector 8 is held pincers piece 51 clampings, wherein, has a skew about 80 °-90 ° with respect to first clamping device 4, and the injector quilt is fixed towards all directions thus.
Shown injector 8 is fully disclosed and has been had one by prior art and kept body 16 and a nozzle 15, and wherein, this nozzle 15 with a longitudinal axis 19 axially is pressed on by means of a nozzle clamp jack panel 9 to be kept on the body 16.Before dismounting injector 8, on the nozzle clamp jack panel 9 of injector 8, plug a horn craving scale 14.This horn craving scale can be fixing by friction by means of the ring of the O shape in a screw 18 or the processing.The dead-center position of horn craving scale 14 is adjusted by an adjustable for height adjustment disk 13.On nozzle clamp jack panel 9, load onto a box spanner assembly 60.Can when being depressed, use at nozzle 15 a torque wrench thus with fork-shaped assembly.Make that by horn craving scale 14 gap between this torque wrench and this box spanner assembly is inessential.
A hold down gag 20 is used to compress nozzle 15, and this hold down gag is assemblied on the connector 31, this connector be fixed on longitudinal movement two cross bars 3,3 ' on.These cross bars 3,3 ' be connected with guide post 1 by a holding device 12 at this, wherein, this holding device 12 can the height adjusted and can be around 10 swings of this guider at it by means of a guider 10.Guider 10 can be fixing by a locking nut 11.Hold down gag 20 can move along cross bar 3,3 because connector 31 reaches thus, so hold down gag 20 can move on all directions and turn to another side in order to load onto horn craving scale 14 and box spanner assembly 60 with can being beneficial to assembling.
Hold down gag 20 is made up of a guide 27, and this guide is to a director element 22 guiding.Director element 22 is upwards pushed up by a back-moving spring 23 and the propulsion plant by housing screw 30 forms is pressed downward, and this housing screw is screwed in the camber member 21 that is fixed on the connector 31.Be provided with a briquetting 26 in director element 22 inside, this briquetting is fixed by means of a screw 28.A tensioning spring 29 is arranged between briquetting 26 and director element 22, and this tensioning spring extruding briquetting 26 leaves from director element 22.In order to adapt to various form of nozzle, the nozzle female part 25 of in briquetting 26, packing into, this nozzle female part is replaceable in case of necessity.Distance between director element 22 and the briquetting 26 defines like this: in order to apply thrust, by rotating housing screw 30 briquetting 26 is moved downwards towards nozzle 15 directions.After nozzle female part 25 drops on the nozzle 15, make tensioning spring 29 compacted by being rotated further housing screw 30, on briquetting 26 rests on a backstop 24 on the director element 22.In this state, tensioning spring 29 obtains to be used for the predetermined thrust of determining of nozzle 15 by tight compression.
This device can be realized the coarse positioning of hold down gag 20, can be complementary with various injector forms thus.The distortion of the described thrust of determining that obtains by tensioning spring 29 in this and guide post 1 and other member is uncorrelated.
The device of a modification has been shown among Fig. 4, and it can be used for assembling and dismounting unit injector (UI, unit fuel injector unit).In these injection valves, need to act on the much higher thrust on the nozzle, from 8kN to 15kN partly.For fear of any obliquity and the thing followed risk of breakage of hold down gag with respect to nozzle, this device is constructed with respect to the device shown in Fig. 1～3 with being reinforced.On substrate 2, be fixed with two guide posts 1,1 ', these guide posts respectively have an external screw thread.For this device is fixed in the vice, a holding element 17 can be fixed on the substrate 2, perhaps replacedly substrate 2 directly is screwed on the workbench, wherein, has cancelled this holding element 17 thus.
Hold down gag 20 ' comprise connector 31, this connector is to briquetting 26 guiding.Briquetting 26 is supported by means of a back-moving spring 23, to avoid pancaking.A removable nozzle female part 25 is housed on briquetting 26, and it is complementary with corresponding UI type.This nozzle female part 25 can pass through some damping elements 32, the supporting of for example rubber cushion assembly.
By the propulsion plant of leading screw 33 forms, power through a power sensor 34 be introduced in hold down gag 20 ' in, this leading screw is also replacedly substituted by a screw.Power sensor 34 is connected with a corresponding measurement mechanism, can realize directly measuring the thrust of being introduced like this.Scheme as an alternative, this also can be undertaken by a groups of springs or a lever arm that has counterweight that has visual inspection apparatus.Before compressing with a horn craving scale and a box spanner component placement on the nozzle clamp jack panel of UI15, this is as shown in Figures 1 to 3.
Shown in Fig. 4 and described in the above device can realize hold down gag 20 ' with respect to indivedual location of UI nozzle 15.Get rid of inclined position by being configured to twin columns pressure device, made thrust accurately on the longitudinal direction of nozzle 15, be introduced into all the time.This device according to Fig. 4 also can be used for assembling co-rail ejector.For this reason, hold down gag 20 ' substitute by a hold down gag 20, this hold down gag 20 is corresponding to the hold down gag 20 of first embodiment.
Claims (6)
1. be used to assemble or the device of disassemble fuel injection valve these Fuelinjection nozzles (8; 70) comprise that one is used for nozzle for jetting fuel (15) and a maintenance body (16), wherein, this nozzle (15) has a longitudinal axis (19) and can be kept on the body (16) at this by axial compression by means of a nozzle clamp jack panel (9), and wherein, this device has:
A clamping device (4; 5), be used for fixing this Fuelinjection nozzle (8; 70), wherein, this Fuelinjection nozzle (8; 70) in the zone of this maintenance body (16), be held;
A hold down gag (20; 20 '), be used to produce one definite, in the thrust that acts on the direction of this longitudinal axis (19) on this nozzle (15), this hold down gag (20; 20 ') comprising a nozzle female part (25), this nozzle female part is admitted the part of described nozzle (15), and this nozzle female part can be by means of a propulsion plant (30; 33) on the direction of the longitudinal axis (19) of this nozzle (15), move.
2. according to the device of claim 1, it is characterized in that: this propulsion plant is a screw (30).
3. according to the device of claim 1, it is characterized in that: this propulsion plant is a leading screw (33).
4. according to claim 1,2 or 3 device, it is characterized in that: a tensioning spring (29) is placed between this nozzle female part (25) and this propulsion plant (30) like this, makes that this tensioning spring is by described propulsion plant (30 when this nozzle female part (25) rests on the Fuelinjection nozzle; 33) compacted.
5. according to the device of claim 4, it is characterized in that: this nozzle female part (25) rests on the backstop (24) after being expert at and crossing a predetermined distance at least indirectly, make this tensioning spring (29) compacted a predetermined distance.
6. according to the device of claim 1, it is characterized in that: a horn craving scale (14) can be fixed on this nozzle clamp jack panel (9), the anglec of rotation that can read this nozzle clamp jack panel (9) on this horn craving scale.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005011694.9 | 2005-03-11 | ||
| DE102005011694.9A DE102005011694B4 (en) | 2005-03-11 | 2005-03-11 | Device for mounting or dismounting fuel injection valves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1830616A CN1830616A (en) | 2006-09-13 |
| CN100566924C true CN100566924C (en) | 2009-12-09 |
Family
ID=36914790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100594950A Active CN100566924C (en) | 2005-03-11 | 2006-03-13 | Be used to assemble device with disassemble fuel injection valve |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN100566924C (en) |
| DE (1) | DE102005011694B4 (en) |
| IT (1) | ITMI20060404A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101450442B (en) * | 2007-11-30 | 2011-12-21 | 上海诺玛液压系统有限公司 | Press-fitting tool between the nozzle of electro-hydraulic servo valve and nozzle shell |
| US8677591B2 (en) | 2008-04-28 | 2014-03-25 | General Electric Company | Methods and system for disassembling a machine |
| FR2988801A1 (en) * | 2012-03-30 | 2013-10-04 | Bosch Gmbh Robert | Device for connecting valve part to valve body for forming pressure regulation valve, has press punch including press body to deform plastically valve body, where deformation produces connection by force and/or shape of part with valve body |
| CN104097008B (en) * | 2014-07-15 | 2016-08-17 | 中国南方航空工业(集团)有限公司 | The stationary fixture of fuel nozzle and the processing method of fuel nozzle |
| CN110900169B (en) * | 2019-11-20 | 2021-05-25 | 广东天机工业智能系统有限公司 | Tear tool device open |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004009755U1 (en) | 2004-06-21 | 2004-09-16 | Klann-Spezial-Werkzeugbau-Gmbh | Device for pulling out a nozzle stick |
-
2005
- 2005-03-11 DE DE102005011694.9A patent/DE102005011694B4/en active Active
-
2006
- 2006-03-07 IT ITMI20060404 patent/ITMI20060404A1/en unknown
- 2006-03-13 CN CNB2006100594950A patent/CN100566924C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005011694B4 (en) | 2019-03-14 |
| CN1830616A (en) | 2006-09-13 |
| DE102005011694A1 (en) | 2006-09-14 |
| ITMI20060404A1 (en) | 2006-09-12 |
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| C14 | Grant of patent or utility model | ||
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