CN111005794A - Exhaust pipe partition cover assembly capable of preventing weld joint from cracking - Google Patents

Exhaust pipe partition cover assembly capable of preventing weld joint from cracking Download PDF

Info

Publication number
CN111005794A
CN111005794A CN201911219146.4A CN201911219146A CN111005794A CN 111005794 A CN111005794 A CN 111005794A CN 201911219146 A CN201911219146 A CN 201911219146A CN 111005794 A CN111005794 A CN 111005794A
Authority
CN
China
Prior art keywords
exhaust pipe
air inlet
arc
cover body
slot
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
Application number
CN201911219146.4A
Other languages
Chinese (zh)
Inventor
吴海锋
方刚锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Chuangge Technology Co ltd
Original Assignee
Zhejiang Chuangge Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Chuangge Technology Co ltd filed Critical Zhejiang Chuangge Technology Co ltd
Priority to CN201911219146.4A priority Critical patent/CN111005794A/en
Publication of CN111005794A publication Critical patent/CN111005794A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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 discloses an exhaust pipe shield assembly capable of preventing a welding seam from cracking, which comprises an exhaust pipe and a heat shield, wherein an air outlet and a first air inlet are respectively arranged at two ends of the exhaust pipe, a plurality of second air inlets are arranged on the side wall of the exhaust pipe, an air inlet branch pipe is fixed on each second air inlet, a plurality of connecting plates are also arranged on the side wall of the exhaust pipe, the heat shield comprises a shield body and connecting strips, a plurality of first notches and second notches for the air inlet branch pipe and the connecting plates to extend out are respectively arranged on the shield body, each connecting strip comprises an arc-shaped section and extending sections positioned at two ends of the arc-shaped section, the two shield bodies are respectively covered at the outer side of the exhaust pipe and are spliced to form a heat-insulating outer layer, the connecting strips are positioned between the adjacent surfaces of the two shield bodies, the extending sections are respectively welded and fixed with the two shield bodies, and the arc-shaped sections are, reducing the effect of thermal stress.

Description

Exhaust pipe partition cover assembly capable of preventing weld joint from cracking
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of automobile exhaust pipeline systems, in particular to the technical field of an exhaust pipe shield assembly capable of preventing a welding seam from cracking.
[ background of the invention ]
An exhaust system for an automobile is used to discharge exhaust gas discharged by the operation of an engine while reducing noise and pollution of the exhaust gas. When the exhaust gas is exhausted from the exhaust pipe system of the automobile, a large amount of heat carried by the exhaust gas heats the exhaust pipe, so that the surface temperature of the exhaust pipe reaches 500-600 ℃. Because the space of the automobile chassis is limited, most of the parts around the automobile exhaust pipeline system are close to the automobile exhaust pipeline, and the normal operation of the surrounding parts has strict requirements on the temperature, if the temperature is high, safety accidents are easily caused, so that a heat insulation cover needs to be installed outside the exhaust pipeline. At present, a heat shield welded on an exhaust pipeline generally adopts a front-back welding mode or a left-right welding mode. When the exhaust gas is discharged, because the front and back temperatures of the automobile exhaust pipeline are inconsistent, the welding seams between the exhaust pipes are different in thermal expansion degree, and the condition of different thermal stress exists, so that the welding seams are easy to crack after the automobile exhaust pipeline is vibrated, and the heat shield can even fall off from the exhaust pipes in serious conditions.
[ summary of the invention ]
The invention aims to solve the problems in the prior art and provides an exhaust pipe shield assembly capable of preventing a welding seam from cracking, which can absorb thermal expansion by utilizing bending generated by extrusion of an arc-shaped section and reduce the action of thermal stress.
In order to achieve the purpose, the invention provides an exhaust pipe shield assembly capable of preventing a weld joint from cracking, which comprises an exhaust pipe and a heat shield, the two ends of the exhaust pipe are respectively provided with an air outlet and a first air inlet, the side wall of the exhaust pipe is provided with a plurality of second air inlets, an air inlet branch pipe is fixed on the second air inlet, a plurality of connecting plates are also arranged on the side wall of the exhaust pipe, the heat shield comprises a shield body and a connecting strip, the shield body is respectively provided with a plurality of first gaps and second gaps for the air inlet branch pipes and the connecting plate to extend out, the connecting strip comprises an arc-shaped section and extension sections positioned at two ends of the arc-shaped section, the two cover bodies are respectively covered on the outer side of the exhaust pipe and spliced to form a heat insulation outer layer, the connecting strip is positioned between the adjacent surfaces of the two cover bodies, and the extending sections are respectively welded and fixed with the two cover bodies.
Preferably, the end of the cover body is provided with a first slot, and the extension section is inserted into the first slot.
Preferably, the side surface of the extension section is provided with a first protrusion, the inner wall of the first slot is provided with a plurality of first notches which are matched with the first protrusion, and the inlet end of the first slot is provided with a first guide inclined plane.
Preferably, one end of the cover body is provided with an inserting strip, the other end of the cover body is provided with a second slot matched with the inserting strip, and the inserting strip is inserted into the second slot of the other cover body.
Preferably, the side of the cutting is provided with a second protrusion, the inner wall of the second slot is provided with a plurality of second notches matched with the second protrusion, and the inlet end of the second slot is provided with a second guide inclined plane.
Preferably, the outer side surface of the arc-shaped section is provided with a plurality of first grooves, and the inner side surface of the arc-shaped section is provided with a plurality of second grooves.
Preferably, the first grooves and the second grooves are arranged in the center of the arc-shaped section.
The invention has the beneficial effects that: according to the invention, the two independent cover bodies are respectively clamped from the upper side and the lower side, so that the heat insulation outer layer is formed by splicing the exhaust pipe, then the two cover bodies are clamped and welded through the connecting strip, the final fixation of the heat insulation cover is completed, the whole installation is firm and rapid, and the heat loss at the connecting part of the cover bodies is small; the arc-shaped section is arranged on the connecting strip, and the arc-shaped section is bent to absorb thermal expansion generated by extrusion, so that the thermal stress effect is reduced, and cracking of a welding line caused by different thermal expansion degrees is avoided; the inner side and the outer side of the center of the arc-shaped section are respectively provided with the plurality of grooves, so that the arc-shaped section is assisted to bend, and the bending property of the arc-shaped section is effectively enhanced; the insertion depth of the inserting strip or the extending section is adjusted through the mutual matching of the protrusion and the notch, so that the size of a gap between the adjacent surfaces of the two cover bodies or the pre-bending degree of the bending section is controlled.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a front view of an exhaust pipe shield assembly of the present invention for preventing weld cracking;
FIG. 2 is a bottom view of an exhaust pipe shield assembly of the present invention to prevent weld cracking;
FIG. 3 is a top view of an exhaust pipe shield assembly of the present invention for preventing weld cracking;
FIG. 4 is a sectional view taken along line A-A of FIG. 2;
fig. 5 is an enlarged schematic view at B of fig. 4.
In the figure: 1-exhaust pipe, 11-air outlet, 12-first air inlet, 13-air inlet branch pipe, 14-connecting plate, 2-heat shield, 21-shield body, 211-first slot, 2111-first notch, 2112-first guide inclined plane, 212-second slot, 2121-second notch, 2122-second guide inclined plane, 213-insert strip, 2131-second protrusion, 22-connecting strip, 221-arc section, 2211-first groove, 2212-second groove, 222-extending section and 2221-first protrusion.
[ detailed description ] embodiments
Referring to fig. 1 to 5, the exhaust pipe shield assembly capable of preventing a weld from cracking comprises an exhaust pipe 1 and a heat shield 2, wherein an air outlet 11 and a first air inlet 12 are respectively arranged at two ends of the exhaust pipe 1, a plurality of second air inlets are arranged on the side wall of the exhaust pipe 1, an air inlet branch pipe 13 is fixed on each second air inlet, a plurality of connecting plates 14 are further arranged on the side wall of the exhaust pipe 1, the heat shield 2 comprises a shield body 21 and connecting strips 22, a plurality of first notches and second notches for the air inlet branch pipes 13 and the connecting plates 14 to extend out are respectively arranged on the shield body 21, each connecting strip 22 comprises an arc-shaped section 221 and extending sections 222 positioned at two ends of the arc-shaped section 221, the two shield bodies 21 are respectively covered on the outer side of the exhaust pipe 1 and are spliced into a heat insulation outer layer, the connecting strips 22 are positioned between adjacent surfaces of the two shield bodies 21, and the extending sections 222 are respectively welded and fixed with the two shield bodies 21, the end of the cover body 21 is provided with a first slot 211, the extension section 222 is inserted into the first slot 211, the side of the extension section 222 is provided with a first protrusion 2221, the inner wall of the first slot 211 is provided with a plurality of first notches 2111 corresponding to the first protrusion 2221, the inlet end of the first slot 211 is provided with a first guiding inclined plane 2112, one end of the cover body 21 is provided with a slip 213, the other end of the cover body 21 is provided with a second slot 212 corresponding to the slip 213, the slip 213 is inserted into the second slot 212 of another cover body 21, the side of the slip 213 is provided with a second protrusion 2131, the inner wall of the second slot 212 is provided with a plurality of second notches 2121 corresponding to the second protrusion 2131, the inlet end of the second slot 212 is provided with a second guiding inclined plane 2122, the outer side of the arc-shaped section 221 is provided with a plurality of first grooves 2211, a plurality of second grooves 2212 are respectively arranged on the inner side surface of the arc-shaped section 221, and the first grooves 2211 and the second grooves 2212 are both arranged in the center of the arc-shaped section 221.
The working process of the invention is as follows:
in the installation process, the two cover bodies 21 are respectively covered on the upper side and the lower side of the outer wall of the exhaust pipe 1, so that the insert 213 is inserted into the second slot 212 of the other cover body 21, and the second protrusion 2131 is clamped with the second notch 2121 as required, thereby adjusting the insertion depth of the insert 213. Subsequently, the two extension sections 222 of the connecting strip 22 are respectively inserted into the first slots 211 of the cover body 21 located at the upper and lower sides, and the first protrusions 2221 are engaged with the first notches 2111 as required, so as to adjust the insertion depth of the extension sections 222. Then, the extension 222 is welded to the cover body 21. In use, the exhaust pipe 1 is installed in a vehicle through a connection plate 14, and air intake is performed by connecting the first air inlet 12 and the air inlet branch pipes 13 with the cylinders, respectively.
According to the invention, the two independent cover bodies are respectively clamped from the upper side and the lower side, so that the heat insulation outer layer is formed by splicing the exhaust pipe, then the two cover bodies are clamped and welded through the connecting strip, the final fixation of the heat insulation cover is completed, the whole installation is firm and rapid, and the heat loss at the connecting part of the cover bodies is small; the arc-shaped section is arranged on the connecting strip, and the arc-shaped section is bent to absorb thermal expansion generated by extrusion, so that the thermal stress effect is reduced, and cracking of a welding line caused by different thermal expansion degrees is avoided; the inner side and the outer side of the center of the arc-shaped section are respectively provided with the plurality of grooves, so that the arc-shaped section is assisted to bend, and the bending property of the arc-shaped section is effectively enhanced; the insertion depth of the inserting strip or the extending section is adjusted through the mutual matching of the protrusion and the notch, so that the size of a gap between the adjacent surfaces of the two cover bodies or the pre-bending degree of the bending section is controlled.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims (7)

1. The utility model provides a can prevent blast pipe that welding seam ftractureed and separate cover assembly which characterized in that: including blast pipe (1) and thermal shield (2), the both ends of blast pipe (1) are equipped with gas outlet (11) and first air inlet (12) respectively, be equipped with a plurality of second air inlet on the lateral wall of blast pipe (1), be fixed with air inlet branch pipe (13) on the second air inlet, still be equipped with a plurality of connecting plate (14) on the lateral wall of blast pipe (1), thermal shield (2) are including cover body (21) and connecting strip (22), be equipped with first breach and second breach that a plurality of confession air inlet branch pipe (13) and connecting plate (14) stretched out on cover body (21) respectively, connecting strip (22) include segmental arc (221) and extension section (222) that are located segmental arc (221) both ends, two cover body (21) cover respectively and establish in the outside of blast pipe (1) and amalgamate into thermal-insulated outer layer, connecting strip (22) are located two between the adjacent face of cover body (21) and extension section (222) respectively And the two cover bodies (21) are welded and fixed.
2. The exhaust pipe shield assembly for preventing weld cracking of claim 1 wherein: the end part of the cover body (21) is provided with a first slot (211), and the extension section (222) is inserted into the first slot (211).
3. The exhaust pipe shield assembly for preventing weld cracking of claim 2 wherein: the side of the extension section (222) is provided with a first protrusion (2221), the inner wall of the first slot (211) is provided with a plurality of first notches (2111) matched with the first protrusion (2221), and the inlet end of the first slot (211) is provided with a first guide inclined surface (2112).
4. The exhaust pipe shield assembly for preventing weld cracking of claim 1 wherein: one end of the cover body (21) is provided with an inserting strip (213), the other end of the cover body (21) is provided with a second inserting groove (212) matched with the inserting strip (213), and the inserting strip (213) is inserted into the second inserting groove (212) of the other cover body (21).
5. The exhaust pipe shield assembly for preventing weld cracking of claim 4 wherein: the side surface of the inserting strip (213) is provided with a second protrusion (2131), the inner wall of the second slot (212) is provided with a plurality of second notches (2121) matched with the second protrusion (2131), and the inlet end of the second slot (212) is provided with a second guide inclined surface (2122).
6. The exhaust pipe shield assembly for preventing weld cracking of claim 1 wherein: the outer side surface of the arc-shaped section (221) is provided with a plurality of first grooves (2211), and the inner side surface of the arc-shaped section (221) is provided with a plurality of second grooves (2212).
7. The exhaust pipe shield assembly for preventing weld cracking of claim 6 wherein: the first grooves (2211) and the second grooves (2212) are arranged in the center of the arc-shaped section (221).
CN201911219146.4A 2019-12-03 2019-12-03 Exhaust pipe partition cover assembly capable of preventing weld joint from cracking Pending CN111005794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911219146.4A CN111005794A (en) 2019-12-03 2019-12-03 Exhaust pipe partition cover assembly capable of preventing weld joint from cracking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911219146.4A CN111005794A (en) 2019-12-03 2019-12-03 Exhaust pipe partition cover assembly capable of preventing weld joint from cracking

Publications (1)

Publication Number Publication Date
CN111005794A true CN111005794A (en) 2020-04-14

Family

ID=70113951

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911219146.4A Pending CN111005794A (en) 2019-12-03 2019-12-03 Exhaust pipe partition cover assembly capable of preventing weld joint from cracking

Country Status (1)

Country Link
CN (1) CN111005794A (en)

Similar Documents

Publication Publication Date Title
EP2208874A1 (en) Heat recovery equipment
CN102837818A (en) Method for producing an acoustic treatment panel including the function of de-icing with hot air
CN100513980C (en) Side-plate for a radiator
CN104296422A (en) Heat exchanger integrated assembly
BR0010625A (en) Heat exchanger and process for manufacturing a heat exchanger
CN211397704U (en) Exhaust pipe partition cover assembly capable of preventing weld joint from cracking
CN111005794A (en) Exhaust pipe partition cover assembly capable of preventing weld joint from cracking
CN103334828A (en) Main board for connecting two ends of cooling pipe in intercooler
US20080163488A1 (en) Method for manufacturing an exhaust element of an exhaust line of a vehicle with a heat engine and exhaust element, namely obtained through implementing said method
JP2007010199A (en) Multiple-way pipe and method of manufacturing the same
CN201574813U (en) Combined exhaust pipe heat insulation sleeve
ATE272201T1 (en) RADIATORS FOR MOTOR VEHICLES
JPS61243282A (en) Heat exchanger
CN203335189U (en) Three-way catalyst assembly of supercharged engine
RU72274U1 (en) EXHAUST MANIFOLD FOR INTERNAL COMBUSTION ENGINE
CN101253382A (en) Tube design for an air-to-air aftercooler
CN211692621U (en) Non-welding exhaust pipe heat shield assembly
CN211397701U (en) Rapid Assembly type blast pipe separates cover assembly
CN206019084U (en) A kind of air-conditioner refrigeration pipe
CN218992791U (en) Thermal insulation device for automobile exhaust pipe and automobile comprising same
CN218069970U (en) Heat management structure of soft package lithium ion battery module
CN220395816U (en) Device for protecting rubber tube, engine and vehicle
CN219866876U (en) Pipeline system
JPH09264128A (en) Flow passage dividing pipe, its bending method and double pipe type exhaust pipe
CN201786439U (en) EGR (Exhaust Gas Recirculation) cooler capable of being renovated for use for heavy-duty diesel engines

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 311800 No. 32 Millennium Road, Tao Zhu street, Zhuji, Shaoxing, Zhejiang

Applicant after: Zhejiang Chuangge Technology Co.,Ltd.

Address before: 311800 No. 32 Millennium Road, Tao Zhu street, Zhuji, Shaoxing, Zhejiang

Applicant before: ZHEJIANG CHUANGGE TECHNOLOGY Co.,Ltd.