CN103557064A - Diesel engine muffler and flanging rolling technology thereof - Google Patents
Diesel engine muffler and flanging rolling technology thereof Download PDFInfo
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- CN103557064A CN103557064A CN201310519507.3A CN201310519507A CN103557064A CN 103557064 A CN103557064 A CN 103557064A CN 201310519507 A CN201310519507 A CN 201310519507A CN 103557064 A CN103557064 A CN 103557064A
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- upper casing
- silencing apparatus
- casing
- diesel engine
- lower casing
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Abstract
The invention belongs to the field of diesel engine equipment and particularly relates to a diesel engine muffler and a flanging rolling technology thereof. The diesel engine muffler comprises an upper housing and a lower housing which are connected to each other, a muffler body is arranged inside the cavity of the upper housing and the lower housing, the connecting interface of the upper housing and the lower housing are provided with flangings, the upper flanging and the lower flanging are connected through rolling, and the upper ends of separation boards are connected with the upper housing or the low housing through circumferential point welding. The diesel engine muffler is compact in structure and easy to assemble, can greatly enhance the structural stability of the muffler, prolong the service life of the muffler and accordingly improve the production efficiency of diesel engines.
Description
Technical field
The invention belongs to diesel engine apparatus field, be specially a kind of silencing apparatus and flange rolling technology thereof of diesel engine.
Background technique
In diesel engine exhaust system, silencing apparatus entrained noise when eliminating body combustion gas.
At fit on, the common upper and lower shell of existing silencing apparatus adopts counterpart assembling, and structure is not compact, assembles cumbersome yet.Therefore be necessary existing silencing apparatus to improve.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, the silencing apparatus and the flange rolling technology thereof that provide a kind of diesel oil to start, make acoustic wave filter structure compact, easy to assembly.
For realizing above-mentioned technical purpose, scheme provided by the invention is: a kind of silencing apparatus of diesel engine, comprise interconnective upper casing and lower casing, muffler body is placed in the cavity of upper casing and lower casing by dividing plate, the counterpart place of described upper casing and lower casing has flange, upper casing flange is connected by roll extrusion with lower casing flange, and the upper end of described dividing plate and upper casing or lower casing are by being connected along all spot welding.
The present invention also provides a kind of flange rolling technology of diesel engine silencing apparatus, comprises the steps.
1) step 1, is stretched as a step that 6mm is dark by the counterpart place of silencing apparatus upper casing.
2) step 2, is treated to oral area the otch matching with upper casing step by silencing apparatus lower casing.
3) step 3, by silencing apparatus lower casing oral area is packed in the step of upper casing, then carries out roll forming by step, makes the crooked also hard-pressed bale of step live otch.
And, in the rolling process of described step 3, by air clamper, the silencing apparatus upper casing and the lower casing that assemble are compressed, and drive silencing apparatus upper casing and lower casing to rotate by motor, the step of the pair of rollers upper casing being driven by hydraulic system pushes, make step generation plastic deformation, tightly encase otch, thereby complete flange roll extrusion.
Compact structure of the present invention, easy to assembly, greatly strengthened the stability of this body structure of silencing apparatus, extend the working life of silencing apparatus, thereby improved the manufacturing efficiency of diesel engine.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein, 1, upper casing, 2, lower casing, 3, upper casing flange, 4, lower casing flange, 5, dividing plate.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
The present embodiment provides a kind of silencing apparatus of diesel engine, comprise interconnective upper casing 1 and lower casing 2, muffler body is placed in the cavity of upper casing 1 and lower casing 2 by dividing plate 5, the counterpart place of described upper casing 1 and lower casing 2 has flange, upper casing flange 3 is connected by roll extrusion with lower casing flange 4, and the upper end of described dividing plate 5 and upper casing 1 or lower casing 2 are by being connected along all spot welding.
The present embodiment also provides a kind of flange rolling technology of diesel engine silencing apparatus, comprises the steps.
1) step 1, is stretched as a step that 6mm is dark by the counterpart place of silencing apparatus upper casing.
2) step 2, is treated to oral area the otch matching with upper casing step by silencing apparatus lower casing.
3) step 3, by silencing apparatus lower casing oral area is packed in the step of upper casing, then carries out roll forming by step, makes the crooked also hard-pressed bale of step live otch.
Further, in the rolling process of above-mentioned steps three, by air clamper, the silencing apparatus upper casing and the lower casing that assemble are compressed, and drive silencing apparatus upper casing and lower casing to rotate by motor, the step of the pair of rollers upper casing being driven by hydraulic system pushes, make step generation plastic deformation, tightly encase otch, thereby complete flange roll extrusion.
Rolling finishing principle: it is a kind of pressure polishing processing, to utilize metal in the cold plasticity feature of normal temperature state, utilize rolling tools to apply certain pressure to workpiece surface, make workpiece surface metal produce Plastic Flow, be filled in original residual indentation trough, and reach workpiece surface roughness value, reduce.Because rolled top layer metal plastic deformation ，Shi textura epidermoidea cold hardening and crystal grain attenuate, form the fibrous of densification, and form residual stress layer, hardness and intensity improve, thereby have improved wear resistance, corrosion resistance and the conformability of workpiece surface.
The present invention is applied to roll extrusion Placement to have in the sound-attenuating system of high vibratory diesel engine, can greatly strengthen the structure stability of silencing apparatus self, extends its working life, thereby has improved the manufacturing efficiency of diesel engine.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvement or distortion, these improvement or distortion also should be considered as protection scope of the present invention.
Claims (3)
1. the silencing apparatus of a diesel engine, comprise interconnective upper casing and lower casing, muffler body is placed in the cavity of upper casing and lower casing by dividing plate, it is characterized in that: the counterpart place of described upper casing and lower casing has flange, upper casing flange is connected by roll extrusion with lower casing flange, and the upper end of described dividing plate and upper casing or lower casing are by being connected along all spot welding.
2. the flange rolling technology of a kind of diesel engine silencing apparatus according to claim 1, comprises the steps:
Step 1, is stretched as a step that 6mm is dark by the counterpart place of silencing apparatus upper casing;
Step 2, is treated to oral area the otch matching with upper casing step by silencing apparatus lower casing;
Step 3, by silencing apparatus lower casing oral area is packed in the step of upper casing, then carries out roll forming by step, makes the crooked also hard-pressed bale of step live otch.
3. the flange rolling technology of a kind of diesel engine silencing apparatus according to claim 2, it is characterized in that: in the rolling process of described step 3, by air clamper, the silencing apparatus upper casing and the lower casing that assemble are compressed, and drive silencing apparatus upper casing and lower casing to rotate by motor, the step of the pair of rollers upper casing being driven by hydraulic system pushes, make step generation plastic deformation, tightly encase otch, thereby complete flange roll extrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519507.3A CN103557064A (en) | 2013-10-29 | 2013-10-29 | Diesel engine muffler and flanging rolling technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519507.3A CN103557064A (en) | 2013-10-29 | 2013-10-29 | Diesel engine muffler and flanging rolling technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103557064A true CN103557064A (en) | 2014-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310519507.3A Pending CN103557064A (en) | 2013-10-29 | 2013-10-29 | Diesel engine muffler and flanging rolling technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103557064A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108942092A (en) * | 2018-05-24 | 2018-12-07 | 东莞荣兴五金制品有限公司 | A kind of manufacturing method and muffler of muffler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189649Y (en) * | 1994-04-25 | 1995-02-15 | 李国民 | Exhausting silencer for diesel engine |
| CN2352680Y (en) * | 1998-07-23 | 1999-12-08 | 李国民 | Exhaust gases silencing apparatus for diesel engine |
| CN202896687U (en) * | 2012-10-30 | 2013-04-24 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile engine chamber hood |
| CN203547856U (en) * | 2013-10-29 | 2014-04-16 | 湖北省红安县滤通机械制品厂 | Silencer of diesel engine |
-
2013
- 2013-10-29 CN CN201310519507.3A patent/CN103557064A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189649Y (en) * | 1994-04-25 | 1995-02-15 | 李国民 | Exhausting silencer for diesel engine |
| CN2352680Y (en) * | 1998-07-23 | 1999-12-08 | 李国民 | Exhaust gases silencing apparatus for diesel engine |
| CN202896687U (en) * | 2012-10-30 | 2013-04-24 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile engine chamber hood |
| CN203547856U (en) * | 2013-10-29 | 2014-04-16 | 湖北省红安县滤通机械制品厂 | Silencer of diesel engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108942092A (en) * | 2018-05-24 | 2018-12-07 | 东莞荣兴五金制品有限公司 | A kind of manufacturing method and muffler of muffler |
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Application publication date: 20140205 |