CN208468255U - A kind of fast assembling-disassembling electric-controlled fuel injector device - Google Patents
A kind of fast assembling-disassembling electric-controlled fuel injector device Download PDFInfo
- Publication number
- CN208468255U CN208468255U CN201820918937.0U CN201820918937U CN208468255U CN 208468255 U CN208468255 U CN 208468255U CN 201820918937 U CN201820918937 U CN 201820918937U CN 208468255 U CN208468255 U CN 208468255U
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- CN
- China
- Prior art keywords
- fuel injector
- controlled fuel
- electric
- screw rod
- hole
- 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.)
- Expired - Fee Related
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 52
- 230000003746 surface roughness Effects 0.000 claims abstract description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000008358 core component Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to a kind of fast assembling-disassembling electric-controlled fuel injector device, including screw rod, the screw rod upper end is connected with block, and lower end is connected with clamp, hydraulic hammer moving up and down is provided on screw rod；The screw rod both ends are set as external screw thread, and intermediate external cylindrical surface surface roughness is less than or equal to Ra12.5；The block is the billiard table shape that top is spherical surface, bottom is plane, and the threaded hole to connecting screw is provided at bottom plane center；The clamp is the circular cylindrical cavity of bottom opening, and internal cavity is step circular hole；The hydraulic hammer is cylinder, and the through-hole to cooperate with screw rod is provided on axis direction.The beneficial effects of the utility model are: can guarantee in the case of not removing any part of electric-controlled fuel injector, quickly electric-controlled fuel injector is taken out from cylinder head；When electric-controlled fuel injector and cylinder head are assembled, it is ensured that electric-controlled fuel injector end face uniform force solves O-ring damage phenomenon；It dismounts simple and quick.
Description
Technical field
The utility model relates to Diesel Engine Technique Field, especially a kind of fast assembling-disassembling electric-controlled fuel injector device.
Background technique
In order to meet increasingly strict emission regulation, marine high-speed high-power engine is gradually sprayed by old-fashioned mechanical fuel
Technology is transited into Electrocontrolled high-pressure common rail technology, however electric-controlled fuel injector is the core component of high pressure co-rail system, is responsible for control spray
The fuel oil of high pressure permanent in common rail pipe is sprayed into cylinder by duty requirements, if electronic control injection by oily timing, fuel injection pulsewidth and injecting times
Device breaks down, and directly affects diesel engine performance and reliability.
One or multi-channel O-ring is designed between usual marine diesel electric-controlled fuel injector and cylinder head, for sealing, if dress
With improper, O-ring is be easy to cause to damage；Simultaneously because cause electric-controlled fuel injector dismounting difficult there are O-ring, transmission disassembly spray
Oily device method is to use spanner left-right rotation electric-controlled fuel injector, loosens electric-controlled fuel injector, then prizes electronic control injection with screwdriver
The body shaft shoulder is gradually extracted electric-controlled fuel injector, or after the solenoid valve on electric-controlled fuel injector head is disassembled, utilizes special tool
Tool is fixed with electric-controlled fuel injector head, and then applied force takes out electric-controlled fuel injector, a kind of patent " disassembly work of electric-controlled fuel injector
Tool " (CN205799366U) uses this mode, although the extracting tool can be permitted in quick-detach electric-controlled fuel injector, presence fastly
Mostly insufficient, be mainly manifested in: solenoid valve is precision pair, and is electric-controlled fuel injector core component, and often disassembly is be easy to cause
Electric-controlled fuel injector is damaged or is scrapped, but after must removing solenoid valve using the extracting tool, could be taken out electric-controlled fuel injector；If
Situations such as carbon distribution is serious or stuck is encountered, needing to apply more energetically could take out electric-controlled fuel injector, be easy to cause electricity in this way
The damage of fuel injector inner components is controlled, while the extracting tool can not use in electric-controlled fuel injector and cylinder head assembling process.
Therefore, it is necessary to a kind of devices of otherwise designed, to solve the above problems.
Summary of the invention
The purpose of this utility model is to propose a kind of fast assembling-disassembling electric-controlled fuel injector device, is not damaging electric-controlled fuel injector
Under the premise of, realize electric-controlled fuel injector fast assembling-disassembling.
The utility model uses following technical scheme, a kind of fast assembling-disassembling electric-controlled fuel injector device, including screw rod, described
Screw rod upper end is connected with block, and lower end is connected with clamp, hydraulic hammer moving up and down is provided on screw rod；The block is
The billiard table shape that top is spherical surface, bottom is plane is provided with the threaded hole to connecting screw at bottom plane center；It is described
Clamp be bottom opening circular cylindrical cavity, internal cavity be step circular hole, top Circularhole diameter be less than lower part circular hole it is straight
Diameter, lower part circular hole side are provided with the symmetrically tapped through hole with center of circular hole, are provided in tapped through hole automatically controlled for clamping
The fastening bolt of fuel injector is additionally provided with the tapped through hole to connecting screw at the clamp upper surface center；Described
Hydraulic hammer is cylinder, and the through-hole to cooperate with screw rod is provided on axis direction.
The screw rod both ends are set as external screw thread, and intermediate external cylindrical surface surface roughness is less than or equal to Ra12.5；
The screw rod both ends also set up stop nut, upper end stop nut and block plane contact, lower end stop nut
With clamp upper end face contact.
Clamp upper part step circles pore size is greater than the solenoid valve on electric-controlled fuel injector head.
The beneficial effects of the utility model are: can guarantee in the case of not removing any part of electric-controlled fuel injector, quickly will
Electric-controlled fuel injector takes out from cylinder head；It is O-shaped due to being equipped on electric-controlled fuel injector when electric-controlled fuel injector and cylinder head are assembled
Circle, if unbalance stress be easy to cause O-ring to damage when assembly, this device and electric-controlled fuel injector are on same axis, Ke Yibao
Electric-controlled fuel injector end face uniform force is demonstrate,proved, solves O-ring damage phenomenon；It dismounts simple and quick, greatly improves working efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1, block, 2, upper end stop nut, 3, screw rod, 4, hydraulic hammer, 5, lower end stop nut, 6, clamp, 7, tight
Fixing bolt.
Specific embodiment
The utility model is further described with reference to the accompanying drawings of the specification, as shown in Figure 1, a kind of fast assembling-disassembling is electric
Fuel injector device is controlled, including screw rod 3,3 upper end of screw rod are connected with block 1, lower end is connected with clamp 6, is arranged on screw rod 3
There is hydraulic hammer 4 moving up and down；The block 1 is the billiard table shape that top is spherical surface, bottom is plane, in bottom plane
The threaded hole to connecting screw 3 is provided at the heart；The clamp 6 is the circular cylindrical cavity of bottom opening, internal cavity
For step circular hole, top Circularhole diameter is less than lower part Circularhole diameter, and lower part circular hole side is provided with the symmetrically spiral shell with center of circular hole
Line through-hole is provided with the fastening bolt 7 for clamping electric-controlled fuel injector, the 6 upper surface center of clamp in tapped through hole
Place is additionally provided with the tapped through hole to connecting screw 3；The hydraulic hammer 4 is cylinder, is arranged on axis direction useful
With the through-hole cooperated with screw rod 3.
3 both ends of screw rod are set as external screw thread, and intermediate external cylindrical surface surface roughness is less than or equal to Ra12.5, convenient
Hydraulic hammer freely moves up and down；
3 both ends of screw rod also set up stop nut, upper end stop nut 2 and 1 plane contact of block, and lower end limits spiral shell
Mother 5 and 6 upper end face contact of clamp, effect is falling off for anti-stop block 1 and clamp 6, additionally as protector, anti-stop block 1
It is hit with clamp 6 by hydraulic hammer 4 and generates damage.
6 upper part step circles pore size of clamp is greater than the solenoid valve on electric-controlled fuel injector head, when guaranteeing to dismount not
Impinging electromagnetic valve.
The utility model assembling process: upper end stop nut 2 is installed on screw rod 3, then by screw rod 3 and block 1 into
Hydraulic hammer 4 is packed into from 3 other end of screw rod, then 5 screw rod of lower end stop nut, 3 lower end is attached by row connection, after the completion will
Screw rod 3 is attached with clamp 6, and fastening bolt 7 is finally mounted on clamp two sides.
In use, cover electric-controlled fuel injector head with clamp 6, bolt 7 then is tightened with torque spanner, torque 15Nm,
Then it is moved upwards on screw rod 3 by hydraulic hammer 4, hammers block 1, the power of application acts on electric-controlled fuel injector, Ke Yishun
Benefit takes out electric-controlled fuel injector from cylinder head.It when assembly, repeats the above steps, hydraulic hammer 4 moves downward, and guarantees O-ring not
Under damaged condition, electric-controlled fuel injector is packed into cylinder head.
The non-detailed portion of the utility model is the prior art.
Claims (4)
1. a kind of fast assembling-disassembling electric-controlled fuel injector device, it is characterized in that: including screw rod, the screw rod upper end is connected with block,
Lower end is connected with clamp, and hydraulic hammer moving up and down is provided on screw rod；The block be top be spherical surface, bottom is flat
The billiard table shape in face is provided with the threaded hole to connecting screw at bottom plane center；The clamp is bottom opening
Circular cylindrical cavity, internal cavity are step circular hole, and top Circularhole diameter is less than lower part Circularhole diameter, the setting of lower part circular hole side
There is the tapped through hole symmetrically with center of circular hole, the fastening bolt for clamping electric-controlled fuel injector, institute are provided in tapped through hole
The tapped through hole to connecting screw is additionally provided at the clamp upper surface center stated；The hydraulic hammer is cylinder, axis
The through-hole to cooperate with screw rod is provided on line direction.
2. a kind of fast assembling-disassembling electric-controlled fuel injector device according to claim 1, it is characterized in that: the screw rod both ends are set
It is set to external screw thread, intermediate external cylindrical surface surface roughness is less than or equal to Ra12.5.
3. a kind of fast assembling-disassembling electric-controlled fuel injector device according to claim 1, it is characterized in that: the screw rod both ends are also
Stop nut, upper end stop nut and block plane contact, lower end stop nut and clamp upper end face contact are set.
4. a kind of fast assembling-disassembling electric-controlled fuel injector device according to claim 1, it is characterized in that: described clamp upper part
Step circles pore size is greater than the solenoid valve on electric-controlled fuel injector head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820918937.0U CN208468255U (en) | 2018-06-14 | 2018-06-14 | A kind of fast assembling-disassembling electric-controlled fuel injector device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820918937.0U CN208468255U (en) | 2018-06-14 | 2018-06-14 | A kind of fast assembling-disassembling electric-controlled fuel injector device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208468255U true CN208468255U (en) | 2019-02-05 |
Family
ID=65217757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820918937.0U Expired - Fee Related CN208468255U (en) | 2018-06-14 | 2018-06-14 | A kind of fast assembling-disassembling electric-controlled fuel injector device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208468255U (en) |
-
2018
- 2018-06-14 CN CN201820918937.0U patent/CN208468255U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 |