CN209083454U - A kind of locking positioning device of diesel nozzeles - Google Patents
A kind of locking positioning device of diesel nozzeles Download PDFInfo
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- CN209083454U CN209083454U CN201821609707.2U CN201821609707U CN209083454U CN 209083454 U CN209083454 U CN 209083454U CN 201821609707 U CN201821609707 U CN 201821609707U CN 209083454 U CN209083454 U CN 209083454U
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- nozzle
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- valve body
- lock sleeve
- hole
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Abstract
The utility model provides a kind of locking positioning device of diesel nozzeles, and the nozzle of diesel engine is locked on the needle-valve body of diesel engine.The outer wall of described needle-valve body one end is equipped with external screw thread, and described nozzle one end is equipped with nozzle outer toroid and nozzle outer step.The utility model includes: lock sleeve, locking tool ontology and several positioning pins.Nozzle is locked on needle-valve body by lock sleeve, and the lock sleeve other end wears the nozzle other end and nozzle outer toroid, resists nozzle outer step end face；Lock sleeve inner wall is equipped with internal screw thread, and lock sleeve one end wears one end of needle-valve body, is threadably secured and connect with needle-valve body；Locking tool and positioning pin are used for installation locking set.One end of positioning pin is fastenedly connected with locking tool ontology interference, and the other end is embedded in lock sleeve, by the torque conduction of locking tool ontology to lock sleeve.The utility model method fixed using threaded connection and end face, realizes and controls nozzle fastening and registration, handling are simple and fast to greatly improve production efficiency.
Description
Technical field
The utility model relates to the tool that a kind of pair of mechanical device is installed and locked, specially a kind of diesel nozzeles
Locking positioning device.
Background technique
The gas valve of boat diesel engine directly determines the quality of fuel system, guarantees the perfect of burning and guarantees diesel engine
Thermal efficiency etc..It is the key factor for influencing host operating condition, most important to the normal safe navigation of ship.
Fuel nozzle is mounted on gas valve, is the key part in marine diesel engine fuel system and important portion
Part.The spray angle of nozzle, atomization situation have a significant impact to the combustibility of diesel engine, and good sprayability can be improved
The efficiency of combustion of engine reduces fuel consumption rate.Nozzle, Set and Positioning inaccuracy, installation effectiveness are installed according to the existing method
It is lower, and have direct influence to the normal mounting of fuel injector and work.Nozzle is as fuel-injected major part, its peace
Fill the operating condition that flexibility and safety will directly determine gas valve.
Utility model content
The locking positioning device that the utility model provides a kind of diesel nozzeles ensure that nozzle by described device
The firmness of locking, it is ensured that the precision of nozzle locking positioning is simple and efficient.
In order to achieve the above object, the utility model provides a kind of locking positioning device of diesel nozzeles, and being used for will
The nozzle of diesel engine is locked on the needle-valve body of diesel engine, and the outer wall of described needle-valve body one end is equipped with external screw thread, and needle-valve
One end of body is equipped with needle-valve body outer toroid, and described nozzle one end is equipped with nozzle outer toroid, and one end of the nozzle outer toroid is equipped with
Nozzle outer step, the nozzle outer step are equipped with the first inner hole, and needle-valve body outer toroid is socketed in the first inner hole.The utility model
The locking positioning devices of diesel nozzeles include:
Lock sleeve is fixed on needle-valve body for connecting nozzle and needle-valve body, and by nozzle；The lock sleeve inner wall is equipped with
The internal screw thread to match with needle-valve extracorporeal thread；Lock sleeve one end wears one end of needle-valve body, is fixedly connected with needle-valve body；Locking
The set other end wears the other end and nozzle outer toroid of nozzle, but does not wear nozzle outer step；On the end face of the lock sleeve other end
It is additionally provided with several identical first pin holes；
Locking tool ontology is used for installation locking set；Locking tool ontology one end is equipped with body apertures, the body apertures
Surrounding is equipped with several identical second pin holes；Second pin hole is stepped hole, and the quantity of the second pin hole is equal to the first pin hole
Quantity；
Several identical positioning pins are step structure, by the torque conduction of locking tool ontology to lock sleeve；It is described fixed
The number of position pin is equal to the second pin hole number, and one end of positioning pin is fixedly connected with locking tool ontology；The other end of positioning pin
It is embedded in and connects with lock sleeve.
The diameter design of the body apertures is that body apertures can wear the nozzle outer toroid, but can not wear nozzle between outer land
Rank.
One end of the positioning pin is mounted on locking tool ontology by fastening with the second pin hole interference.
The spacing of the body apertures hole heart described in the Kong Xinyu of several second pin holes is equal, second pin hole and sheet
The spacing of body opening is denoted as r2；And the spacing of the adjacent second pin hole hole heart is equal, the adjacent second pin hole hole is in the heart away from being denoted as
d2。
The hole heart being equidistant to lock sleeve the other end face center of several first pin holes, first pin hole
The distance at the hole heart to lock sleeve the other end face center is denoted as r1；The spacing of the adjacent first pin hole hole heart is equal, and described adjacent
One pin hole hole is in the heart away from being denoted as d1, r1=r2, d1=d2；And first pin hole size matching positioning pin the other end.
The other end of several positioning pins can be embedded in corresponding first pin hole simultaneously.
The lock sleeve and needle-valve body are connect by the internal screw thread of lock sleeve inner wall with the external screw thread of needle-valve body one end.
After nozzle is locked on needle-valve body by the lock sleeve, the end face of the lock sleeve other end resists the end of nozzle outer step
Face prevents nozzle stress axial float.
Compared with prior art, the method that the utility model is connected through a screw thread and end face is fixed passes through locking tool reality
Now to nozzle fastening and the accurate control of position error.The locking positioning device fastening effect of the nozzle of the utility model is good, fixed
Position precision is high and handling are simple and fast, when also solving other methods locking nozzle, since geometric tolerance causes positioning and locking smart
Insufficient problem is spent, production efficiency is greatly improved, has ensured the normal operation of diesel engine and the safe operation of ship.
Detailed description of the invention
In order to illustrate more clearly of technical solutions of the utility model, letter will be made to attached drawing needed in description below
Singly introduce, it should be apparent that, the accompanying drawings in the following description is one embodiment of the utility model, skill common for this field
For art personnel, without creative efforts, it is also possible to obtain other drawings based on these drawings:
Fig. 1 is the nozzle, lock sleeve, needle-valve body connection schematic diagram of the utility model；
Fig. 2 is the needle valve structure schematic diagram of the utility model；
Fig. 3 is the nozzle arrangements schematic diagram of the utility model；
Fig. 4 is the lock sleeve of the utility model and the scheme of installation of locking tool ontology；
Fig. 5 is the lock sleeve cross-sectional view of the utility model；
Fig. 6 is the lock sleeve diagrammatic cross-section of the utility model；
Fig. 7 is the top view of the locking tool ontology of the utility model；
Fig. 8 is the side view of the locking tool ontology of the utility model；
Fig. 9 is the positioning pin schematic diagram of the utility model；
In figure: 1, needle-valve body；2, lock sleeve；3, nozzle；4, positioning pin；5, locking tool ontology；6, nozzle outer toroid；7,
Needle-valve body outer toroid；8, needle-valve extracorporeal thread；9, body apertures；10, the first pin hole；11 second pin holes；12, lock sleeve internal screw thread；
13, needle-valve body outer toroid end face；14, the first inner hole；15, nozzle outer step end face；16, hole end surface in first；17, lock sleeve is another
One end end face；18, nozzle outer step.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of locking positioning device of diesel nozzeles, for locking the nozzle 3 of diesel engine
It is fixed on the needle-valve body 1 of diesel engine.Fig. 2 is 1 structural schematic diagram of needle-valve body of the utility model, as shown in Fig. 2, the needle-valve
The outer wall of 1 one end of body is equipped with external screw thread, and one end of needle-valve body 1 is equipped with needle-valve body outer toroid 7.In this application embodiment, needle
The total length tolerance of valve body 1 is 178 ± 0.1mm.The effective tolerance of needle-valve body outer toroid 7 is -0.007mm to -0.02mm.Such as figure
Shown in 2, needle-valve body outer toroid 7 is 0.01mm to the jerk value on the basis of A, B inner hole in Fig. 2；Needle-valve body outer toroid 7 is in A, B
End face squareness tolerance on the basis of hole is less than 0.005mm, and required precision is high.
As shown in figure 3, described 3 one end of nozzle is equipped with nozzle outer toroid 6, one end of the nozzle outer toroid 6 is equipped with nozzle
Outer step 18, the nozzle outer step 18 are equipped with the first inner hole 14, and needle-valve body outer toroid 7 is socketed in the first inner hole 14.
As shown in Figure 1 and Figure 4, the locking positioning device of the diesel nozzeles 3 of the utility model includes lock sleeve 2, locking
The positioning pin 4 identical with several of tool body 5.
Lock sleeve 2 is fixed on needle-valve body 1 for connecting nozzle 3 and needle-valve body 1, and by nozzle 3, connection type such as Fig. 1
It is shown；As shown in figure 4,2 inner wall of lock sleeve is equipped with the lock sleeve internal screw thread 12 to match with needle-valve extracorporeal thread 8；Such as Fig. 1
Shown, one end of the lock sleeve 2 wears one end of needle-valve body 1, passes through outside lock sleeve internal screw thread 12 and needle-valve body with needle-valve body 1
Screw thread 8 is fixedly connected.2 other end of lock sleeve wears the other end and nozzle outer toroid 6 of nozzle 3, but does not wear nozzle outer step
18.As shown in Figure 1, lock sleeve the other end face 17 resists nozzle outer step after nozzle 3 is locked on needle-valve body 1 by lock sleeve 2
End face 15 prevents 3 stress axial float of nozzle.
Fig. 5 and Fig. 6 is 2 cross section of lock sleeve of the utility model, diagrammatic cross-section respectively；As shown in Figure 5, Figure 6, it locks
Several identical first pin holes 10 are additionally provided in set the other end face 17.As shown in fig. 6, the hole heart of first pin hole 10 arrives
17 center of lock sleeve the other end face is equidistant, the 10 hole heart of the first pin hole to 17 center of lock sleeve the other end face
Distance is denoted as r1；As shown in figure 5, the spacing of adjacent first pin hole, the 10 hole heart is equal, adjacent first pin hole, 10 hole in the heart away from
It is denoted as d1。
Locking tool ontology 5, for installation locking set 2.Fig. 7 and Fig. 8 is the locking tool ontology 5 of the utility model respectively
Top view and side view.As shown in Figure 7 and Figure 8, described 5 one end of locking tool ontology is equipped with body apertures 9.As shown in Figure 1, institute
The diameter design for stating body apertures 9 is that can wear the nozzle outer toroid 6, but can not wear the nozzle outer step 18.Should
With in embodiment, the diameter of body apertures 9 is 0.1mm bigger than the diameter of nozzle outer toroid 6.
As shown in fig. 7, being equipped with several identical second pin holes 11 around the body apertures 9；Second pin hole 11 is
Stepped hole, the number of the second pin hole 11 are equal to the number of the first pin hole 10.As shown in figure 8, several second pin holes 11
The spacing of the 9 hole heart of body apertures described in Kong Xinyu is equal, and second pin hole 11 and the spacing of body apertures 9 are denoted as r2；Such as Fig. 7 institute
Show, and the spacing of the 11 hole heart of adjacent second pin hole is equal, adjacent second pin hole, 11 hole is in the heart away from being denoted as d2, there is r1=r2,
d1=d2。
Several identical positioning pins 4, as shown in figure 9, being cylindrical stage stage structure, by the torque of locking tool ontology 5
It is conducted to lock sleeve 2；The number of the positioning pin 4 is equal to 11 numbers of the second pin hole.As shown in figure 4, one end of positioning pin 4 passes through
It fastens, is mounted on locking tool ontology 5 with 11 interference of the second pin hole.In this application embodiment, interference fastening is specific bit
The diameter of 4 one end of pin is 0.02-0.03MM bigger than 11 diameter of the second pin hole, and the second pin hole 11 is knocked in one end of positioning pin 4.Positioning
It can not rotate in the second pin hole 11 after 4 interference of pin fastening, be fixedly connected with locking tool ontology 5.Several described positioning pins 4
The other end, match the first pin hole 10 size, corresponding first pin hole 10 can be embedded in simultaneously.The abrasion of positioning pin 4 or long-time
Fracture can knock out replacement from locking tool ontology 5 after use.
In this application embodiment, the first pin hole 10, the second pin hole 11, positioning pin 4 are 4.
The application method of the utility model, comprising the steps of:
S1, one end of several positioning pins 4 and 11 interference of the second pin hole are fastened, is fixedly connected with several 4 Hes of positioning pin
Locking tool ontology 5；
S2, the other end and nozzle outer toroid 6 that the other end of lock sleeve 2 is worn to nozzle 3；
S3, one end that one end of lock sleeve 2 is worn to needle-valve body 1, while the needle-valve body outer toroid 7 is socketed in first
In hole 14；
S4, the other end of several positioning pins 4 is embedded in corresponding first pin hole 10 simultaneously；
S5, rotation lock tool body 5, until the fitting of lock sleeve the other end face 17 resists nozzle outer step end face 15,
The fitting of needle-valve body outer toroid end face 13 simultaneously resists hole end surface 16 in first；
S6, locking tool ontology 5 is removed.
Compared with prior art, the locking positioning device of the utility model can be realized needle-valve body outer toroid end face 13 and
The plane verticality tolerance of hole end surface 16 is less than 0.01mm in one.Therefore locking rear nozzle 3 and the compactness of needle-valve body 1 are fine, protect
3 accurate positioning of nozzle is demonstrate,proved.The method that the utility model is connected through a screw thread and end face is fixed is realized and fastens and determine to nozzle 3
The accurate control of position error.The utility model fastening effect is good, and positioning accuracy is high and handling are simple and fast, solves other methods
When locking nozzle 3, since geometric tolerance causes positioning and locking precision insufficient, hole end surface in needle-valve body outer toroid end face 13 and first
16 the problem of not being bonded.Production efficiency is greatly improved in the utility model, has ensured normal operation and the ship of diesel engine
Safe operation.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can be readily occurred in various
Equivalent modifications or substitutions, these modifications or substitutions should be covered within the scope of the utility model.Therefore, this is practical
Novel protection scope should be subject to the protection scope in claims.
Claims (8)
1. the locking positioning device of a kind of diesel nozzeles, for being locked the nozzle of diesel engine in the needle-valve body of diesel engine
On, described nozzle one end is equipped with nozzle outer toroid, and one end of the nozzle outer toroid is equipped with nozzle outer step, the nozzle between outer land
Rank is equipped with the first inner hole, and the outer wall of described needle-valve body one end is equipped with external screw thread, and one end of needle-valve body is equipped with needle-valve body outer toroid,
Needle-valve body outer toroid is socketed in the first inner hole characterized by comprising
Lock sleeve is fixed on needle-valve body for connecting nozzle and needle-valve body, and by nozzle；The lock sleeve inner wall is equipped with and needle
The internal screw thread that valve body external screw thread matches；Lock sleeve one end wears one end of needle-valve body, is fixedly connected with needle-valve body；Lock sleeve is another
One end wears the other end and nozzle outer toroid of nozzle, but does not wear nozzle outer step；It is also set on the end face of the lock sleeve other end
There are several identical first pin holes；
Locking tool ontology is used for installation locking set；Locking tool ontology one end is equipped with body apertures, around the body apertures
Equipped with several identical second pin holes；Second pin hole is stepped hole, and the quantity of the second pin hole is equal to the number of the first pin hole
Amount；
Several identical positioning pins are step structure, by the torque conduction of locking tool ontology to lock sleeve；The positioning pin
Number be equal to the second pin hole number, one end of positioning pin is fixedly connected with locking tool ontology；The other end and lock of positioning pin
Fixed insertion connection.
2. the locking positioning device of diesel nozzeles as described in claim 1, which is characterized in that the diameter of the body apertures is set
It is calculated as, body apertures can wear the other end and nozzle outer toroid of the nozzle, but can not wear nozzle outer step.
3. the locking positioning device of diesel nozzeles as described in claim 1, which is characterized in that one end of the positioning pin is logical
It crosses and is fastened with the second pin hole interference, is mounted on locking tool ontology.
4. the locking positioning device of diesel nozzeles as described in claim 1, which is characterized in that several described second pin holes
Kong Xinyu described in the spacing of the body apertures hole heart be equal, the spacing of the second pin hole Kong Xinyu body apertures hole heart is denoted as r2；
And the spacing of the adjacent second pin hole hole heart is equal, the adjacent second pin hole hole is in the heart away from being denoted as d2。
5. the locking positioning device of diesel nozzeles as claimed in claim 4, which is characterized in that several described first pin holes
The hole heart being equidistant to lock sleeve the other end face center, first pin hole hole heart to lock sleeve the other end face center
Distance be denoted as r1；The spacing of the adjacent first pin hole hole heart is equal, and the adjacent first pin hole hole is in the heart away from being denoted as d1, r1=r2,
d1=d2；And first pin hole size matching positioning pin the other end.
6. the locking positioning device of diesel nozzeles as claimed in claim 5, which is characterized in that several positioning pins
The other end can be embedded in corresponding first pin hole simultaneously.
7. the locking positioning device of diesel nozzeles as described in claim 1, which is characterized in that the lock sleeve and needle-valve
Body is connect by the internal screw thread of lock sleeve inner wall with the external screw thread of needle-valve body one end.
8. the locking positioning device of diesel nozzeles as described in claim 1, which is characterized in that nozzle is locked at by lock sleeve
After on needle-valve body, the end face of the lock sleeve other end resists nozzle outer step end face, prevents nozzle stress axial float.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821609707.2U CN209083454U (en) | 2018-09-30 | 2018-09-30 | A kind of locking positioning device of diesel nozzeles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821609707.2U CN209083454U (en) | 2018-09-30 | 2018-09-30 | A kind of locking positioning device of diesel nozzeles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209083454U true CN209083454U (en) | 2019-07-09 |
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ID=67118111
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821609707.2U Active CN209083454U (en) | 2018-09-30 | 2018-09-30 | A kind of locking positioning device of diesel nozzeles |
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| Country | Link |
|---|---|
| CN (1) | CN209083454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279885A (en) * | 2021-06-17 | 2021-08-20 | 江苏八方动力机械有限公司 | Novel oil sprayer |
-
2018
- 2018-09-30 CN CN201821609707.2U patent/CN209083454U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279885A (en) * | 2021-06-17 | 2021-08-20 | 江苏八方动力机械有限公司 | Novel oil sprayer |
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