CN201848324U - Jet nozzle with chamfering edge on inner side of jet hole - Google Patents
Jet nozzle with chamfering edge on inner side of jet hole Download PDFInfo
- Publication number
- CN201848324U CN201848324U CN2010206088174U CN201020608817U CN201848324U CN 201848324 U CN201848324 U CN 201848324U CN 2010206088174 U CN2010206088174 U CN 2010206088174U CN 201020608817 U CN201020608817 U CN 201020608817U CN 201848324 U CN201848324 U CN 201848324U
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- China
- Prior art keywords
- nozzle
- spray orifice
- jet
- inside edge
- chamfering
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Abstract
The utility model discloses a jet nozzle with a chamfering edge on the inner side of a jet hole, which belongs to the technical field of machining. The net nozzle is characterized in that a chamfer is formed on the edge on the inner side of the jet hole. Compared with the jet nozzle with a tip edge on the inner side of the jet hole, marginal blurs on the inner side of the jet hole are removed, the jet flow channel of the jet nozzle is modified, and the shake and the divergence of jet flows coming from the jet nozzle are eliminated.
Description
Technical field
The utility model belongs to the Machining Technology field, the nozzle of particularly a kind of spray orifice inside edge chamfering.
Background technology
There is nozzle miscellaneous in aero-engine lubricating system and ignition system, in order to save the locus of nozzle on aero-engine, reach the lubricated of a plurality of positions, nozzle arrangements is different, spray orifice often is on irregular of nozzle, and the aperture of spray orifice is little.
Generally between Φ 0.5mm～Φ 2mm, its injection direction exists the problem of shaking or dispersing to injection diameter in the aero-engine always, and qualification rate is extremely low, and the main cause that causes this phenomenon is that the inward flange burr of spray orifice can't be removed.The inner surface of the outward flange of spray orifice and spray orifice improves fineness by the mode of lappingout at present, can reach specification requirement.And the inward flange of spray orifice adopts the whole bag of tricks to clear up, and as abrasive Flow, water blast, electropolishing etc., effect is all undesirable.Therefore, the qualification rate of this type of part also rests on about 30% always, and production efficiency is low.
Summary of the invention
At above-mentioned problems of the prior art, the utility model provides the nozzle of a kind of spray orifice inside edge chamfering, and there is chamfering the spray orifice inside edge of this nozzle, has removed the burr of spray orifice inside edge, revised the runner of injection stream, the problem that has solved the injection stream shake and dispersed.
Analyze the fluid figure of jet of the nozzle of the fluid figure of jet of nozzle that the spray orifice inside edge is sharp limit and spray orifice inside edge chamfering theoretically with software simulation:
The spray orifice inside edge is the nozzle on sharp limit: at first utilize UG(three-dimensional CAD design software) software sets up the model of nozzle, because prior art can guarantee the outer ledge quality of spray orifice and the inner surface fineness of spray orifice, therefore set the outer ledge quality of spray orifice and the inner surface fineness of spray orifice can reach requirement, then nozzle model is imported Fluent(physical model simulation softward) software, can get the fluid figure of the interior jet of spray orifice of delivery nozzle, as shown in Figure 3, the field distribution of spray orifice fluid velocity inside is inhomogeneous as can be seen, there is tangible turbulent flow the part, these turbulent flows cause whole fluid to produce fluctuation, after final fluid ejects from the exit of spray orifice, injection is dispersed, and has a strong impact on the jet direction of nozzle.
The nozzle of spray orifice inside edge chamfering: utilize UG software to set up the model of nozzle, nozzle model is imported Fluent software, can get the fluid figure of the interior jet of spray orifice of delivery nozzle, as shown in Figure 4, the field distribution of spray orifice fluid velocity inside is even as can be seen, and turbulent flow disappears substantially.
Can determine by the above-mentioned theory sunykatuib analysis, is the nozzle model on sharp limit through nozzle model that chamfered is carried out in the inside edge of spray orifice than the inside edge of spray orifice, its spray orifice fluid velocity inside field is stable, and injection direction is good, has solved the shake of injection stream and disperses.
The nozzle of the utility model spray orifice inside edge chamfering comprises nozzle body, have circular spray orifice on described nozzle body, on the inside edge of described spray orifice chamfering is arranged, described chamfering is d * θ °, the d span is 0.2mm～0.4mm, and the θ span is 30～60.
The nozzle of spray orifice of the present utility model inside edge chamfering and spray orifice inside edge are that the nozzle on sharp limit is compared, removed the burr of spray orifice inside edge, revised the runner of injection stream, the problem that has solved the injection stream shake and dispersed, make injection stream reach good injection direction, broken through the restriction of " for guaranteeing the injection direction of nozzle; the edge of spray orifice must keep sharp limit " this traditional theory, the qualification rate of nozzle spray direction is brought up to more than 95% by 30%, reduced single-piece jet direction debug time, reduce the single-piece work cost, shortened the production cycle.
Description of drawings
Fig. 1 is the schematic cross-section of the nozzle of the utility model spray orifice inside edge chamfering
Fig. 2 is the schematic cross-section of the nozzle on sharp limit for the spray orifice inside edge
Fig. 3 is the fluid schematic of jet in the spray orifice of nozzle on sharp limit for the spray orifice inside edge
Fig. 4 is the fluid schematic of jet in the spray orifice of nozzle of spray orifice inside edge chamfering
1 spray orifice, 2 chamferings, 3 nozzle bodies, 4 nozzle inlets, 5 jet expansions, 6 turbulent flows among the figure.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is done and to be described in further detail:
As shown in Figure 1, the nozzle of the utility model spray orifice inside edge chamfering comprises nozzle body 3, has circular spray orifice 1 on described nozzle body, and chamfering 2 is arranged on the inside edge of described spray orifice 1.
Analyze the fluid figure of the nozzle of the fluid figure of jet of nozzle that the spray orifice inside edge is sharp limit and spray orifice inside edge chamfering theoretically with software simulation:
The spray orifice inside edge is the nozzle (see figure 2) on sharp limit: at first utilize UG software to set up the model of nozzle, because prior art can guarantee the outer ledge quality of spray orifice and the inner surface fineness of spray orifice 1, therefore set the outer ledge quality of spray orifice 1 and the inner surface fineness of spray orifice 1 can reach requirement, then nozzle model is imported Fluent software, can get the fluid figure of the interior jet of spray orifice of delivery nozzle, as shown in Figure 3, fluid enters nozzle from nozzle inlet 4, from jet expansion 5 ejections, the field distribution of spray orifice fluid velocity inside is inhomogeneous as can be seen, the part has tangible turbulent 6, these turbulent flows cause whole fluid to produce fluctuation, finally after fluid ejected from the exit of spray orifice 1, injection was dispersed, and has a strong impact on the jet direction of nozzle.
The nozzle (see figure 1) of spray orifice inside edge chamfering: utilize UG software to set up the model of nozzle, nozzle model is imported Fluent software, can get the fluid figure of the interior jet of spray orifice of delivery nozzle, as shown in Figure 4, fluid enters nozzle from nozzle inlet 4, from jet expansion 5 ejections, the field distribution of spray orifice fluid velocity inside is even as can be seen, and turbulent flow 6 disappears substantially.
Implementation column 1: the diameter of the spray orifice 1 of nozzle is Φ 0.5mm, and chamfering is 0.2 * 30 ° of mm, can eliminate the shake of injection stream in the practical application and disperses.
Implementation column 2: the diameter of the spray orifice 1 of nozzle is Φ 1.2mm, and chamfering is 0.3 * 45 ° of mm, can eliminate the shake of injection stream in the practical application and disperses.
Implementation column 3: the diameter of the spray orifice of nozzle is Φ 2mm, and chamfering is 0.4 * 60 ° of mm, can eliminate the shake of injection stream in the practical application and disperses.
The nozzle of spray orifice of the present utility model inside edge chamfering and spray orifice inside edge are that the nozzle on sharp limit is compared, and the fluid velocity field distribution in the spray orifice is even, and turbulent flow disappears substantially, can eliminate the shake of injection stream and disperse.
Claims (2)
1. the nozzle of a spray orifice inside edge chamfering comprises nozzle body (3), has circular spray orifice (1) on nozzle body (3), and it is characterized in that has chamfering (2) on the inside edge of described spray orifice (1).
2. the nozzle of spray orifice as claimed in claim 1 inside edge chamfering
,It is characterized in that described chamfering (2) is d * θ °, the d span is 0.2mm～0.4mm, and the θ span is 30～60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206088174U CN201848324U (en) | 2010-11-16 | 2010-11-16 | Jet nozzle with chamfering edge on inner side of jet hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206088174U CN201848324U (en) | 2010-11-16 | 2010-11-16 | Jet nozzle with chamfering edge on inner side of jet hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201848324U true CN201848324U (en) | 2011-06-01 |
Family
ID=44090738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206088174U Expired - Fee Related CN201848324U (en) | 2010-11-16 | 2010-11-16 | Jet nozzle with chamfering edge on inner side of jet hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201848324U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817376A (en) * | 2016-05-13 | 2016-08-03 | 江苏港星方能超声洗净科技有限公司 | Spray nozzle used for high-pressure washer |
-
2010
- 2010-11-16 CN CN2010206088174U patent/CN201848324U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817376A (en) * | 2016-05-13 | 2016-08-03 | 江苏港星方能超声洗净科技有限公司 | Spray nozzle used for high-pressure washer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20161116 |