CN112963232A - Quick-detachable general-purpose type tail gas aftertreatment heat shield - Google Patents
Quick-detachable general-purpose type tail gas aftertreatment heat shield Download PDFInfo
- Publication number
- CN112963232A CN112963232A CN202110279515.XA CN202110279515A CN112963232A CN 112963232 A CN112963232 A CN 112963232A CN 202110279515 A CN202110279515 A CN 202110279515A CN 112963232 A CN112963232 A CN 112963232A
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- China
- Prior art keywords
- heat insulation
- hoop
- insulation cotton
- insulation cover
- heat shield
- 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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- 238000009413 insulation Methods 0.000 claims abstract description 63
- 229920000742 Cotton Polymers 0.000 claims abstract description 38
- 238000003466 welding Methods 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012805 post-processing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 210000005069 ears Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 206010021198 ichthyosis Diseases 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention belongs to the technical field of an automobile exhaust gas exhaust system post-treatment packaging structure, and relates to a quickly-detachable universal type exhaust gas post-treatment heat shield which comprises an upper sheet assembly and a lower sheet assembly which are detachably connected, wherein the upper sheet assembly comprises an upper hoop, an upper heat shield and upper heat insulation cotton; the lower piece assembly comprises a lower hoop, a lower heat insulation cover and lower heat insulation cotton, the outer surface of the lower hoop is fixedly provided with the lower heat insulation cover, and the inner wall of the lower hoop is provided with the lower heat insulation cotton in a fitting manner; a clamping hole is formed in one radial end of the upper hoop, and an upper connecting lug plate is arranged at the other radial end of the upper hoop; the radial one end of lower staple bolt sets up the pothook, and the radial other end sets up down and connects the otic placode, and the pothook cooperatees with the card hole and is connected, goes up and connects the otic placode and is connected with the butt-joint nut through the bolt with lower connection otic placode. This separate heat exchanger makes things convenient for the dismouting, and it is more convenient to separate the replacement of heat exchanger.
Description
Technical Field
The invention belongs to the technical field of an automobile exhaust system post-treatment packaging structure, and relates to a quick-detachable universal type exhaust post-treatment heat shield.
Background
In the sixth stage of China, the aftertreatment working temperature of the gasoline engine reaches 800-. The post-treatment heat shield can block the radiation heat emitted by post-treatment, if the post-treatment heat shield is not protected, other parts of accessories of the post-treatment heat shield are easy to deform, the service life is shortened, other articles are ignited due to too high post-treatment temperature, a combustion phenomenon is caused, and meanwhile casualties can be caused. The detaching device becomes a structure that the package must have. The surface temperature of the cylinder is controlled below 200 degrees generally, and the invention aims to realize heat insulation, heat preservation and quick disassembly of the post-treatment surface heat shield, and is convenient to install and maintain.
In the sixth stage of China, two technical routes of gasoline and diesel are adopted, one set of the technical route is provided with the post-treatment of TWC + GPF, and the other set of the technical route is the post-treatment of DOC + DPF + SCR, so that the development of the used molds of the heat shield is increased, and the cost is increased. Therefore, the heat shield structure with excellent process performance, universal mold and high reliability can greatly reduce the cost of post-treatment products, and has important practical significance.
The current protective structure of the heat shield is as follows: 1. the heat shield is internally wrapped by cotton added in a spot welding mode through an upper sheet and a lower sheet. 2. The welding type heat shield is welded on the cylinder body directly.
The existing heat shield has the following defects: (1) spot welding separates heat exchanger package cotton structure on the aftertreatment packaging structure, separates heat exchanger metal material and can not be too thick, requires highly, otherwise unable spot welding, simultaneously because too thin, the shrivelled hole appears on the heat exchanger surface that separates easily to form, and the quality problem can't be avoided.
(2) The welded heat shield structure post-processing packaging product has fewer production processes, and the maintenance cost of the assembly at the later stage is higher due to the fact that the welding is not easy to disassemble.
Disclosure of Invention
Aiming at the problems, the invention provides a quick-detachable universal type tail gas aftertreatment heat shield which is convenient to disassemble and assemble and convenient to replace independently.
According to the technical scheme of the invention: the utility model provides a quick tail gas aftertreatment of general type of dismantling separates heat exchanger which characterized in that: the heat insulation device comprises an upper sheet assembly and a lower sheet assembly which are detachably connected, wherein the upper sheet assembly comprises an upper hoop, an upper heat insulation cover and upper heat insulation cotton;
the lower piece assembly comprises a lower hoop, a lower heat insulation cover and lower heat insulation cotton, the outer surface of the lower hoop is fixedly provided with the lower heat insulation cover, and the inner wall of the lower hoop is provided with the lower heat insulation cotton in a fitting manner;
a clamping hole is formed in one radial end of the upper hoop, and an upper connecting lug plate is arranged at the other radial end of the upper hoop; the radial end of the lower anchor ear is provided with a hook, the radial other end is provided with a lower connecting ear plate,
the clamping hook is matched and connected with the clamping hole, and the upper connecting lug plate and the lower connecting lug plate are connected with the butt-welding nut through bolts.
As a further improvement of the invention, the two axial ends of the upper heat insulation cover are respectively provided with a closing part so as to limit the upper heat insulation cotton; the two axial ends of the lower heat shield are respectively provided with a closing part so as to limit the lower heat shield cotton.
As a further improvement of the invention, the upper anchor ear is fixedly connected with the upper heat insulation cotton, and the lower anchor ear is fixedly connected with the lower heat insulation cotton.
As a further improvement of the invention, the upper heat insulation cover is provided with a kidney-shaped hole, and the lower heat insulation cover is provided with a kidney-shaped hole.
The invention has the technical effects that: the product of the invention has reasonable and ingenious structure, and the heat shield assembly is produced by using a universal hoop die and a process, thereby greatly reducing the cost of a post-processing die; the disassembly is easy, and the instant maintenance can be realized; the heat insulation cover is reliably connected with the hoop, and the position of the heat insulation cover is adjustable when the heat insulation cover is connected with the hoop; the position of the hoop can be determined according to actual loading so as to meet the requirement of the strength of the hoop holding tightly and further support the realization of the universality of the heat shield mold; the inner wall of the heat shield of the product is pasted with cotton, so that heat insulation and heat preservation can be realized.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic end view of the present invention.
Fig. 3 is a perspective view of the upper plate assembly of the present invention.
FIG. 4 is a schematic end view of a top piece assembly of the present invention.
Fig. 5 is a perspective view of a lower plate assembly according to the present invention.
FIG. 6 is a schematic end view of a bottom plate assembly of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In fig. 1 to 6, the heat insulation structure comprises an upper sheet assembly 1, a lower sheet assembly 2, a bolt 3, a butt-welding nut 4, an upper hoop 5, an upper heat insulation cover 6, upper heat insulation cotton 7, a lower hoop 8, a lower heat insulation cover 9, lower heat insulation cotton 10, a clamping hole 11, a clamping hook 12, an upper connecting ear plate 13, a lower connecting ear plate 14 and the like.
As shown in fig. 1 to 6, the invention relates to a quick-detachable general-purpose exhaust gas post-treatment heat shield, which comprises an upper sheet assembly 1 and a lower sheet assembly 2 which are detachably connected, wherein the upper sheet assembly 1 comprises an upper hoop 5, an upper heat shield 6 and upper heat insulation cotton 7, the outer surface of the upper hoop 5 is fixedly provided with the upper heat shield 6, and the inner wall of the upper hoop 5 is provided with the heat insulation cotton 7 in a fitting manner.
The lower piece assembly 2 comprises a lower hoop 8, a lower heat insulation cover 9 and lower heat insulation cotton 10, the lower heat insulation cover 9 is fixedly arranged on the outer surface of the lower hoop 8, and the lower heat insulation cotton 10 is arranged on the inner wall of the lower hoop 8 in a fitting mode. In order to realize the detachable connection of the upper sheet assembly 1 and the lower sheet assembly 2, the upper hoop 5 and the lower hoop 8 adopt the following structural design: a clamping hole 11 is formed in one radial end of the upper hoop 5, and an upper connecting lug plate 13 is arranged at the other radial end of the upper hoop; the radial end of the lower anchor ear 8 is provided with a hook 12, and the radial other end is provided with a lower connecting ear plate 14.
The hook 12 is matched and connected with the clamping hole 11, and the upper connecting lug plate 13 and the lower connecting lug plate 14 are connected with the butt-welding nut 4 through the bolt 3. By adopting the connection mode, the product can be quickly disassembled.
In order to realize effective limit of the upper heat insulation cotton 7 and the lower heat insulation cotton 10: the two axial ends of the upper heat insulation cover 6 are respectively provided with a closing part to limit the upper heat insulation cotton 7; the two axial ends of the lower heat shield 9 are respectively provided with a closing part so as to limit the lower heat insulation cotton 10.
The upper anchor ear 6 is fixedly connected with the upper heat insulation cotton 7, and the lower anchor ear 8 is fixedly connected with the lower heat insulation cotton 10. During specific production, when the use environment temperature is higher, the upper heat insulation cotton 7 is fixedly connected with the upper anchor ear 6 by adopting binding nails; when the applied environment temperature is not particularly high, the upper heat insulation cotton 7 is connected with the upper anchor ear 6 by gluing. The connection mode of the lower anchor ear 8 and the lower heat insulation cotton 10 is similar to the connection mode of the upper heat insulation cotton 7 and the upper anchor ear 6, heat insulation cotton is filled according to the actual post-treatment surface temperature condition, and flexible cost control can be realized.
The upper heat shield 6 is provided with a kidney-shaped hole, and the lower heat shield 9 is provided with a kidney-shaped hole. During specific work, according to the lengths of the upper heat shield 6 and the lower heat shield 9, the inner walls of the upper heat shield 6 and the lower heat shield 9 are provided with a proper number of upper anchor ears 5 and lower anchor ears 8, in the invention, two ends of the inner wall of the upper heat shield 6 are respectively provided with one upper anchor ear 5, and two ends of the inner wall of the lower heat shield 9 are respectively provided with one lower anchor ear 8.
As shown in figures 1-6, the product of the invention can be quickly disassembled through the hoop component, thereby reducing the mold cost of products with the same specification and different lengths. Through general knot formula overlap structure, adopt upper and lower wafer subassembly to cooperate, easily realize the overlap and dismantle, go up staple bolt 5, lower staple bolt 8 when production, adopt general mould stamping forming to adapt to different length, realize general.
The universal type tail gas post-treatment heat shield has the remarkable characteristics of strong mold universality, superior process performance, high reliability and the like. The heat shield with the structure can greatly reduce the cost of post-processing packaging products, improve the production efficiency and the product quality of the products and increase the market competitiveness of the post-processing products.
Claims (4)
1. The utility model provides a quick tail gas aftertreatment of general type of dismantling separates heat exchanger which characterized in that: the heat insulation structure comprises an upper sheet assembly (1) and a lower sheet assembly (2) which are detachably connected, wherein the upper sheet assembly (1) comprises an upper hoop (5), an upper heat insulation cover (6) and upper heat insulation cotton (7), the outer surface of the upper hoop (5) is fixedly provided with the upper heat insulation cover (6), and the inner wall of the upper hoop (5) is provided with the upper heat insulation cotton (7) in a fit manner;
the lower sheet assembly (2) comprises a lower hoop (8), a lower heat insulation cover (9) and lower heat insulation cotton (10), the outer surface of the lower hoop (8) is fixedly provided with the lower heat insulation cover (9), and the inner wall of the lower hoop (8) is attached with the lower heat insulation cotton (10);
a clamping hole (11) is formed in one radial end of the upper hoop (5), and an upper connecting lug plate (13) is arranged at the other radial end of the upper hoop; a hook (12) is arranged at one end of the lower anchor ear (8) in the radial direction, a lower connecting ear plate (14) is arranged at the other end in the radial direction,
the clamping hook (12) is matched and connected with the clamping hole (11), and the upper connecting lug plate (13) and the lower connecting lug plate (14) are connected with the butt-welding nut (4) through the bolt (3).
2. The quick disconnect, universal exhaust aftertreatment heat shield of claim 1, wherein: the two axial ends of the upper heat insulation cover (6) are respectively provided with a closing part so as to limit the upper heat insulation cotton (7); the two axial ends of the lower heat insulation cover (9) are respectively provided with a closing part so as to limit the lower heat insulation cotton (10).
3. The quick disconnect, universal exhaust aftertreatment heat shield of claim 1, wherein: the upper anchor ear (6) is fixedly connected with the upper heat insulation cotton (7), and the lower anchor ear (8) is fixedly connected with the lower heat insulation cotton (10).
4. The quick disconnect, universal exhaust aftertreatment heat shield of claim 1, wherein: the upper heat insulation cover (6) is provided with a kidney-shaped hole, and the lower heat insulation cover (9) is provided with a kidney-shaped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110279515.XA CN112963232A (en) | 2021-03-16 | 2021-03-16 | Quick-detachable general-purpose type tail gas aftertreatment heat shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110279515.XA CN112963232A (en) | 2021-03-16 | 2021-03-16 | Quick-detachable general-purpose type tail gas aftertreatment heat shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112963232A true CN112963232A (en) | 2021-06-15 |
Family
ID=76279284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110279515.XA Pending CN112963232A (en) | 2021-03-16 | 2021-03-16 | Quick-detachable general-purpose type tail gas aftertreatment heat shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112963232A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008298060A (en) * | 2007-06-04 | 2008-12-11 | Mitsubishi Fuso Truck & Bus Corp | Thermal insulation structure for exhaust pipe |
| CN102748113A (en) * | 2011-04-21 | 2012-10-24 | J·埃贝斯佩歇合资公司 | Exhaust system component |
| CN203757222U (en) * | 2014-02-25 | 2014-08-06 | 福建祥龙塑胶有限公司 | Hoop device |
| KR20180002122U (en) * | 2016-12-30 | 2018-07-10 | 대우조선해양 주식회사 | Assembly for supporting a waste steam pipe of submarine |
| EP3587191A1 (en) * | 2018-06-29 | 2020-01-01 | REINZ-Dichtungs-GmbH | Heat shield and component comprising a heat shield |
-
2021
- 2021-03-16 CN CN202110279515.XA patent/CN112963232A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008298060A (en) * | 2007-06-04 | 2008-12-11 | Mitsubishi Fuso Truck & Bus Corp | Thermal insulation structure for exhaust pipe |
| CN102748113A (en) * | 2011-04-21 | 2012-10-24 | J·埃贝斯佩歇合资公司 | Exhaust system component |
| CN203757222U (en) * | 2014-02-25 | 2014-08-06 | 福建祥龙塑胶有限公司 | Hoop device |
| KR20180002122U (en) * | 2016-12-30 | 2018-07-10 | 대우조선해양 주식회사 | Assembly for supporting a waste steam pipe of submarine |
| EP3587191A1 (en) * | 2018-06-29 | 2020-01-01 | REINZ-Dichtungs-GmbH | Heat shield and component comprising a heat shield |
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