CN106737371A - A kind of fuel injector dismounting instrument and its application method - Google Patents
A kind of fuel injector dismounting instrument and its application method Download PDFInfo
- Publication number
- CN106737371A CN106737371A CN201611225792.8A CN201611225792A CN106737371A CN 106737371 A CN106737371 A CN 106737371A CN 201611225792 A CN201611225792 A CN 201611225792A CN 106737371 A CN106737371 A CN 106737371A
- Authority
- CN
- China
- Prior art keywords
- fuel injector
- housing
- alignment pin
- movable nut
- connector
- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
Abstract
The invention discloses a kind of fuel injector dismounting instrument and its application method.Fuel injector dismounting instrument includes：Housing, the side of the housing is provided with connector, and the connector is hexa-prism, and the housing is provided with groove away from the side of connector, the madial wall of the groove is provided with four big alignment pin mounting holes of grade, and spherical alignment pin is provided with the alignment pin mounting hole.The present invention in housing by setting four spherical alignment pins, manual vertical presses movable nut, put down four hole position perpendicular alignmnets, four spherical alignment pins of fuel injector and naturally fuel injector, when fuel injector is naturally placed on housing, release activity nut, movable nut resets and completes to fix in the presence of return spring, four spherical alignment pins are just adapted with four hole positions of fuel injector, avoid the damage to fuel injector during fuel injector is dismounted, the weight of the instrument is reduced significantly with volume simultaneously, it is easy to carry, the problems such as preferably solving fuel injector detaching just.
Description
Technical field
The present invention relates to oil for diesel engine fuel system and automotive service set technical field, more particularly to a kind of fuel injector
Dismantling device and its application method.
Background technology
Fuel injector is the important component on diesel engine cylinder head, and it is motor-driven that the quality of fuel injector performance directly affects diesel oil
The normal performance of power performance, therefore, it is necessary to carry out periodic inspection and maintenance to fuel injector, this is just faced with will frequently dismount oil spout
The problem of device；Fuel injector is designed in the rocking arm axle box of narrow space, and fuel injector peripheral space is very narrow and small, and staff is difficult to stretch
Enter, need to be dismounted by special dismantling device, current fuel injector maintenance tool cost is high, volume big, carry not side
Just, and the existing fuel injector dismounting instrument single varieties of in the market, more using the side of two or three screw fixing fuel injectors
Formula, operation is relatively complicated time-consuming, and does not make full use of four holes of fuel injector, and lifting surface area is small during operation, easily to fuel injector
Cause to damage in inside；There was only torque spanner jack in the existing dismantling device main body of in the market, it is impossible to which meeting the more of user makes
Use demand.
Through retrieval, Chinese patent publication date is 2013-11-27, application number：201320231240.3；Publication number：
CN203305141U；Denomination of invention：Fuel injector dismounting instrument；Disclose a kind of fuel injector dismounting instrument, including guide rod and interval
The upper and lower block being provided thereon, is provided with the impact hammer being slidably socketed on the guide rod between the upper and lower block, described to lead
Bar lower end is connected with the adapter sleeve for being detachably connected the fuel injector.The present invention improves intensity, it is to avoid flexural deformation
Occur, increase service life；The utility model realizes Fast Installation and the dismounting of fuel injector, easy to use, reduces labour intensity,
Improve operating efficiency；But the apparatus cost high cost, volume are big, carry inconvenient, cannot still meet user and more use
Demand.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, of the invention
One purpose is to propose a kind of fuel injector dismounting instrument, and weight and the volume of the instrument are reduced, be easy to carry significantly, preferably solution
The problems such as fuel injector detaching determined just.
A kind of fuel injector dismounting instrument according to embodiments of the present invention, including：Housing, the side of the housing is provided with connection
Part, the connector is hexa-prism, and the housing is provided with groove, is set on the madial wall of the groove away from the side of connector
There is the big alignment pin mounting hole of four grades, spherical alignment pin is provided with the alignment pin mounting hole, on the lateral wall of the housing
Jump ring mounting groove is provided with, jump ring packing ring is provided with the jump ring mounting groove, the outer wall of the jump ring packing ring is provided with movable nut,
The jump ring packing ring is fixedly connected with movable nut, and the movable nut inwall is in contact with spherical alignment pin；Return spring, institute
It is that one end of the return spring is fixed on movable screw in multiple spaces being each provided between housing and movable nut to state return spring
On the inwall of cap, and the other end of return spring is fixed on the lateral wall of groove.
In some embodiments of the invention, the inwall of the movable nut is provided with the rolling matched with spherical alignment pin
Dynamic groove, the depth of the rolling groove gradually increases.
In other embodiments of the invention, one layer of skid-proof rubber is scribbled on the outer wall of the movable nut.
In other embodiments of the invention, the connector be applicable to 32mm die nuts, 32mm double offset ring spanners,
The monkey wrench of 32~35mm or 1/2（12.5mm）Torque spanner.
In other embodiments of the invention, interior diameter of a circle is straight slightly larger than jump ring mounting groove on the jump ring packing ring
Footpath.
In other embodiments of the invention, displacement of the movable nut on housing is 0~15mm.
Compared with prior art, the device have the advantages that being：
1. inventive article is only by housing, movable nut, return spring, spherical alignment pin, jump ring packing ring, six parts of connector
Composition, cost rational in infrastructure is low, and instrument weight is only that 1.08kg, volume are 383263mm3, it is easy to carry, while can be full
Sufficient user dismantles the demand of fuel injector.
2. four four hole positions of alignment pin mounting hole correspondence fuel injector are set on the groove madial wall of housing, stress is increased
Area so that equalising torque is distributed, reduces fuel injector abrasion, is provided with alignment pin mounting hole on spherical alignment pin and fuel injector
After four hole position alignments, movable nut will be by return spring elastic force self-return.
3. the depth of rolling groove is gradually reduced on movable nut inwall, finally fixes spherical alignment pin, solid so as to reach
Determine the purpose of fuel injector, simplify whole disassembly process, the connector of housing side is hexa-prism, and applicable 32mm hexagonals are pulled
Hand, 32mm double offset ring spanners, the monkey wrench of 32~35mm or 1/2（12.5mm）Torque spanner etc., makes fuel injector dismounting decomposition side
Method is changed into variation.
4. the instrument makes fuel injector dismounting operating efficiency improve more than 60% simultaneously；The present invention in housing by setting four
Individual spherical alignment pin, four hole uniform forces can reach 200 Nm, and lifting surface area is uniform, the energy in the presence of movable nut
It is enough with can be adapted with the four of fuel injector hole positions, it is to avoid damage during dismounting fuel injector to fuel injector.
5. the application method of fuel injector dismounting instrument is：Movable nut is vertically pressed first, is made outside movable screw shade housing
Wall is moved toward connector direction, and jump ring packing ring controls its upper and lower free gap start-stop position；And then insert the groove ends of housing
Enter in fuel injector, make four on groove madial wall spherical alignment pin orientation consistent with four hole positions on fuel injector, unclamp and live
Dynamic nut, movable nut is moved in the presence of return spring toward away from connector direction, until original position is returned to, the depth of rolling groove
Degree is also gradually reduced, and is finally fitted with spherical alignment pin, completes to fix；Finally using the spanner matched with connector is carried out
Dismounting, realizes the quick disassembling function of fuel injector.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, with reality of the invention
Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of structural representation of fuel injector dismounting instrument proposed by the present invention.
Fig. 2 is a kind of front section view of fuel injector dismounting instrument proposed by the present invention.
Fig. 3 is the positional structure schematic diagram of return spring in a kind of fuel injector dismounting instrument proposed by the present invention.
In figure：1 housing, 2 movable nuts, 3 return springs, 4 spherical alignment pins, 5 jump ring packing rings, 6 connectors.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.
The example of the embodiment is shown in the drawings, wherein same or similar label represents identical or class from start to finish
As element or the element with same or like function.Embodiment below with reference to Description of Drawings is exemplary, purport
For explaining the present invention, and it is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, must rather than the device or element for indicating or imply meaning
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " is meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or two interaction relationships of element.For the ordinary skill in the art, can be according to specific feelings
Condition understands above-mentioned term concrete meaning in the present invention.
Reference picture 1-3, a kind of fuel injector dismounting instrument, including：Housing 1, the side of housing 1 is provided with connector 6, connector
6 is hexa-prism, and housing 1 is provided with groove away from the side of connector 6, and the madial wall of groove is provided with four big alignment pins of grade
Mounting hole, is provided with spherical alignment pin 4 in alignment pin mounting hole, the lateral wall of housing 1 is provided with jump ring mounting groove, jump ring mounting groove
Jump ring packing ring 5 is inside provided with, the outer wall of jump ring packing ring 5 is provided with movable nut 2, and jump ring packing ring 5 is fixedly connected with movable nut 2,
The inwall of movable nut 2 is in contact with spherical alignment pin 4；Return spring 3, return spring 3 is each provided at housing 1 and movable screw for multiple
In space between cap 2, one end of return spring 3 is fixed on the inwall of movable nut 2, and the other end of return spring 3 is fixed
On the lateral wall of groove；The inwall of movable nut 2 is provided with the rolling groove matched with spherical alignment pin 4, the depth of rolling groove
Degree gradually increases；One layer of skid-proof rubber is scribbled on the outer wall of movable nut 2；Connector 6 is applicable to 32mm die nuts, 32mm plums
Combination wrench, the monkey wrench of 32~35mm or 1/2（12.5mm）Torque spanner；Interior diameter of a circle is slightly larger than card on jump ring packing ring 5
The diameter of spring mounting groove；Displacement of the movable nut 2 on housing is 0~15mm.
The instrument is only by housing 1, movable nut 2, return spring 3, spherical alignment pin 4, jump ring packing ring 5, connector 6 six
Part is constituted, and cost rational in infrastructure is low, and instrument weight is only that 1.08kg, volume are 383263mm3, it is easy to carry, while
The demand that user dismantles fuel injector can be met；Four alignment pin mounting hole correspondence fuel injectors are set on the groove madial wall of housing 1
Four hole positions, increased lifting surface area so that equalising torque distribute, reduce fuel injector abrasion, be provided with alignment pin mounting hole
After spherical alignment pin 4 is aligned with four hole positions on fuel injector, movable nut 2 will be by the elastic force self-return of return spring 3, together
When the movable inwall of nut 2 on the depth of rolling groove be gradually reduced, spherical alignment pin 4 is finally fixed, so as to reach fixed oil spout
The purpose of device, simplifies whole disassembly process, and the connector 6 of the side of housing 1 is hexa-prism, applicable 32mm die nuts,
32mm double offset ring spanners, the monkey wrench of 32~35mm or 1/2（12.5mm）Torque spanner etc., becomes fuel injector dismounting decomposition method
It is variation, while the instrument makes fuel injector dismounting operating efficiency improve more than 60%；The present invention is by the setting four in housing 1
Individual spherical alignment pin 4, four hole uniform forces can reach 200Nm, and lifting surface area is uniform, the energy in the presence of movable nut 2
It is enough to be adapted with four hole positions of fuel injector, it is to avoid damage during dismounting fuel injector to fuel injector, while the instrument
Weight reduce significantly with volume, be easy to carry, the problems such as preferably solve fuel injector detaching just.
A kind of application method of fuel injector dismounting instrument, its method and step is：Movable nut 2, jump ring are vertically pressed first
Packing ring 5 controls its upper and lower free gap start-stop position, and then by the groove ends insertion fuel injector of housing 1, makes groove inner side
Four orientation of spherical alignment pin 4 on wall are consistent with four hole positions on fuel injector, release activity nut 2, and movable nut 2 is being returned
Toward away from the movement of the direction of connector 6 in the presence of the spring 3 of position, until returning to original position, the depth of rolling groove is also gradually reduced, finally
Fitted with spherical alignment pin 4, complete to fix, finally reused the spanner matched with connector 6 and dismantled, so that quickly
The dismounting of fuel injector in diesel engine cylinder head is completed, if fuel injector need to be taken out, only needs again that vertical pull-up activity nut 2 is just
Can be taken off, the depth of rolling groove also gradually increases, and spherical alignment pin 4 is separated with the hole position on fuel injector, then instrument is taken out just
Can；Four hardness of spherical alignment pin 4 are HRC30, and movable nut 2 and the hardness of housing 1 are HRC28, long service life, part design
Abrasion resistance is more than 1,000,000 times, is hardly damaged, and improves the operating efficiency of maintenance personal, is that maintenance personal's inspection is sprayed with maintenance
It is convenient that oily device brings.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (7)
1. a kind of fuel injector dismounting instrument, it is characterised in that including：
Housing, the side of the housing is provided with connector, and the connector is hexa-prism, the housing away from connector one
Side is provided with groove, and the madial wall of the groove is provided with four big alignment pin mounting holes of grade, is set in the alignment pin mounting hole
The lateral wall for having spherical alignment pin, the housing is provided with jump ring mounting groove, and jump ring packing ring, institute are provided with the jump ring mounting groove
The outer wall for stating jump ring packing ring is provided with movable nut, and the jump ring packing ring is fixedly connected with movable nut, in the movable nut
Wall is in contact with spherical alignment pin；
Return spring, the return spring is in multiple spaces being each provided between housing and movable nut, the return spring
One end is fixed on the inwall of movable nut, and the other end of return spring is fixed on the lateral wall of groove.
2. a kind of fuel injector dismounting instrument according to claim 1, it is characterised in that：Set on the inwall of the movable nut
The depth for having the rolling groove matched with spherical alignment pin, the rolling groove gradually increases.
3. a kind of fuel injector dismounting instrument according to claim 1, it is characterised in that：Applied on the outer wall of the movable nut
There is one layer of skid-proof rubber.
4. a kind of fuel injector dismounting instrument according to claim 1, it is characterised in that：The connector is applicable to 32mm
Die nut, 32mm double offset ring spanners, the monkey wrench of 32~35mm or 1/2 torque spanner.
5. a kind of fuel injector dismounting instrument according to claim 1, it is characterised in that：Inner circle is straight on the jump ring packing ring
Diameter of the footpath slightly larger than jump ring mounting groove.
6. a kind of fuel injector dismounting instrument according to claim 1, it is characterised in that：The movable nut is on housing
Displacement is 0~15mm.
7. a kind of application method of fuel injector dismounting instrument as claimed in claim 1, it is characterised in that：Method and step is as follows,
A. movable nut is vertically pressed first, movable screw shade housing exterior walls is moved toward connector direction, the control of jump ring packing ring
Its upper and lower free gap start-stop position；
B. and then by the groove ends insertion fuel injector of housing, four on groove madial wall spherical alignment pin orientation are made with spray
Four hole positions on oily device are consistent, release activity nut, and movable nut is in the presence of return spring toward away from connector direction
Mobile, until returning to original position, the depth of rolling groove is also gradually reduced, and is finally fitted with spherical alignment pin, completes to fix；
C. it is last to be dismantled using the spanner matched with connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225792.8A CN106737371A (en) | 2016-12-27 | 2016-12-27 | A kind of fuel injector dismounting instrument and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225792.8A CN106737371A (en) | 2016-12-27 | 2016-12-27 | A kind of fuel injector dismounting instrument and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106737371A true CN106737371A (en) | 2017-05-31 |
Family
ID=58921528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611225792.8A Pending CN106737371A (en) | 2016-12-27 | 2016-12-27 | A kind of fuel injector dismounting instrument and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106737371A (en) |
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| CN201604107U (en) * | 2010-02-25 | 2010-10-13 | 中国石油集团川庆钻探工程有限公司川西钻探公司 | Wrench for rapidly assembling and disassembling oil nozzle |
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2016
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Application publication date: 20170531 |