CN214145632U

CN214145632U - Tail gas aftertreatment encapsulation

Info

Publication number: CN214145632U
Application number: CN202120039608.0U
Authority: CN
Inventors: 祝楷天; 林永金; 李刚
Original assignee: Shanghai Tenneco Exhaust System Co Ltd
Current assignee: Shanghai Tenneco Exhaust System Co Ltd
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-09-07
Anticipated expiration: 2031-01-07

Abstract

An exhaust aftertreatment package comprises a metal shell, a carrier packaged in the metal shell, and a support indirectly connected with the metal shell. The tail gas aftertreatment package further comprises a switching support, wherein the switching support is welded to the metal shell, the support is welded and fixed to the switching support, the thickness of the switching support is larger than that of the metal shell, and the thickness of the support is larger than that of the switching support. Compared with the prior art, the utility model discloses a set up the switching support and reduced the produced inefficacy risk of support and metal casing direct weld, improved the welding reliability of tail gas aftertreatment encapsulation.

Description

Tail gas aftertreatment encapsulation

Technical Field

The utility model relates to a tail gas aftertreatment encapsulation belongs to engine exhaust aftertreatment technical field.

Background

Existing brackets are typically welded directly to the housing. Since the bracket is required to bear a large load, the thickness thereof tends to be thick, and the case for enclosing the carrier is becoming thinner and thinner with a tendency to be light-weighted. The problem that results from this is that the wall thickness of support and casing differs a lot, leads to the welding failure rate to increase constantly. And because the bracket and the assembly are often welded in the last step, the welding failure at this time has a large influence on the cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a higher tail gas aftertreatment of welding reliability encapsulates.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a tail gas aftertreatment encapsulation, its includes metal casing, encapsulation carrier in the metal casing and with the indirect support that links to each other of metal casing, tail gas aftertreatment encapsulation still includes the switching support, wherein the switching scaffold weldment in metal casing, scaffold weldment is fixed in the switching support, wherein the thickness of switching support is greater than metal casing's thickness, the thickness of support is greater than the thickness of switching support.

As a further improved technical scheme of the utility model, the metal casing is cylindric.

As a further improved technical scheme of the utility model, the switching support be equipped with the arc inner wall that the metal casing laminated mutually.

As a modified technical scheme of the utility model, the switching support is equipped with two minor faces and the connection of relative setting the long limit of minor face, minor face welded fastening in metal casing.

As a further improved technical scheme of the utility model, the switching support be equipped with the arc outer wall that the arc inner wall is relative, the scaffold weldment be in on the arc outer wall.

As a further improved technical solution of the present invention, the support and the welding seam of the arc-shaped outer wall are located between two short edges of the adapting support.

As the utility model discloses further modified technical scheme, the support includes first weld part, second weld part and is located first weld part with recess between the second weld part, the recess will first weld part with the second weld part is followed the circumference of tail gas aftertreatment encapsulation is separated.

Compared with the prior art, the utility model discloses a set up the switching support and reduced the produced inefficacy risk of support and metal casing direct weld, improved the welding reliability of tail gas aftertreatment encapsulation.

Drawings

Fig. 1 is a schematic perspective view of the exhaust gas post-treatment package of the present invention.

Fig. 2 is a perspective view of the transfer stand of fig. 1.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a front view of fig. 2.

Detailed Description

Referring to fig. 1 to 4, the present invention discloses an exhaust gas aftertreatment package 100, which includes a metal casing 1, a carrier 4 packaged in the metal casing 1, and a bracket 2 indirectly connected to the metal casing 1. In addition, the exhaust gas aftertreatment package 100 further includes an adapting bracket 3, wherein the adapting bracket 3 is welded to the metal housing 1, and the bracket 2 is welded and fixed to the adapting bracket 3, wherein the adapting bracket 3 has a thickness greater than that of the metal housing 1, and the bracket 2 has a thickness greater than that of the adapting bracket 3.

Specifically, the carrier 4 is enclosed in the metal case 1 by a gasket (not shown). In the illustrated embodiment of the present invention, the metal shell 1 is cylindrical and has a circular arc-shaped outer surface 11.

The switching support 3 is provided with an arc-shaped inner wall 31 attached to the metal shell 1 and an arc-shaped outer wall 32 opposite to the arc-shaped inner wall 31. The adapting bracket 3 is also provided with two short sides 33 which are oppositely arranged and a long side 34 which is connected with the short sides 33, and the short sides 33 are welded and fixed on the outer surface 11 of the metal shell 1 so as to realize the fixation of the two. That is, the weld 301 of the adaptor bracket 3 to the metal shell 1 is located on the short side 33.

The bracket 2 is welded to the curved outer wall 32 of the adapter bracket 3. In the illustrated embodiment of the present invention, the weld 302 between the bracket 2 and the curved outer wall 32 is located between two short sides 33 of the adaptor bracket 3. With this arrangement, the welding line 301 of the adapter bracket 3 and the metal shell 1 and the welding line 302 of the bracket 2 and the arc-shaped outer wall 32 are complementarily interfered, so that simultaneous welding can be realized to improve the assembling efficiency.

The bracket 2 includes a first welding part 21, a second welding part 22, and a groove 23 between the first welding part 21 and the second welding part 22. The groove 23 separates the first welding portion 21 and the second welding portion 22 along the circumferential direction of the exhaust gas aftertreatment package 100 to release welding stress.

The utility model discloses a set up switching support 3 and reduced support 2 and the produced inefficacy risk of 1 lug weld of metal casing, improved tail gas aftertreatment encapsulation 100's welding reliability.

The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical personnel in the technical field, and although the present specification has described the present invention in detail with reference to the above embodiments, the skilled personnel in the art should understand that the technical personnel in the technical field can still modify or substitute the present invention, and all the technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. The utility model provides an exhaust aftertreatment encapsulation, its includes metal casing, encapsulation carrier in the metal casing and with the indirect support that links to each other of metal casing which characterized in that: the tail gas aftertreatment package further comprises a switching support, wherein the switching support is welded to the metal shell, the support is welded and fixed to the switching support, the thickness of the switching support is larger than that of the metal shell, and the thickness of the support is larger than that of the switching support.

2. The exhaust aftertreatment package of claim 1, wherein: the metal shell is cylindrical.

3. The exhaust aftertreatment package of claim 2, wherein: the switching support is provided with an arc-shaped inner wall attached to the metal shell.

4. The exhaust aftertreatment package of claim 3, wherein: the switching support is provided with two short edges which are arranged oppositely and a long edge connected with the short edges, and the short edges are welded and fixed on the metal shell.

5. The exhaust aftertreatment package of claim 4, wherein: the switching support is provided with an arc outer wall opposite to the arc inner wall, and the support is welded on the arc outer wall.

6. The exhaust aftertreatment package of claim 5, wherein: and the welding seam between the bracket and the arc-shaped outer wall is positioned between two short edges of the switching bracket.

7. The exhaust aftertreatment package of claim 6, wherein: the support includes first welding part, second welding part and is located first welding part with the recess between the second welding part, the recess will first welding part with the second welding part is followed the circumference of tail gas aftertreatment encapsulation is separated.