CN215860431U

CN215860431U - Tail gas aftertreatment encapsulation

Info

Publication number: CN215860431U
Application number: CN202121770915.2U
Authority: CN
Inventors: 陈龙; 王晓恒; 濮晓宇; 赵孟冬; 李超
Original assignee: Tenneco Suzhou Emission System Co Ltd
Current assignee: Tenneco Suzhou Emission System Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-02-18
Anticipated expiration: 2031-07-30

Abstract

The utility model provides a tail gas aftertreatment encapsulation, its includes first barrel, with the second barrel that first barrel arranged side by side and will first barrel with bracket component of second barrel fixed connection. The support assembly comprises a first support block fixed on the first cylinder, a second support block fixed on the second cylinder, a mounting groove located between the first support block and the second support block, a support at least partially contained in the mounting groove, a first mounting piece fixedly connected with the first support block and a second mounting piece fixedly connected with the second support block, and the first mounting piece, the second mounting piece and the support are separately arranged and fixedly connected. According to the arrangement, tolerance can be absorbed through the first mounting piece and the second mounting piece, and the assembly difficulty is reduced.

Description

Tail gas aftertreatment encapsulation

Technical Field

The utility model relates to a tail gas aftertreatment package, and belongs to the technical field of engine tail gas aftertreatment.

Background

Existing exhaust aftertreatment packages typically include a housing and a bracket assembly, which typically includes a clamp encasing the housing and a bracket, among other things, attached to the clamp. However, these prior art designs tend to increase assembly difficulty due to accumulated tolerances when assembled.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an exhaust aftertreatment package which is easy to assemble.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides an exhaust aftertreatment encapsulation, its includes first barrel, with the second barrel that first barrel arranged side by side and with first barrel with second barrel fixed connection's bracket component, the bracket component is including being fixed in the first supporting shoe of first barrel, being fixed in the second supporting shoe of second barrel, be located mounting groove between first supporting shoe and the second supporting shoe, at least part accept in the support in the mounting groove, with first supporting shoe fixed connection's first installation piece and with second supporting shoe fixed connection's second installation piece, first installation piece, second installation piece and the support three separately sets up and fixed connection.

As a further improved technical solution of the present invention, the first supporting block is provided with a first through hole penetrating through the first supporting block along a first direction; the first mounting piece is provided with two first side walls which are respectively positioned at two sides of the first supporting block, each first side wall is provided with a first mounting hole which penetrates through the first side wall along the first direction, and the first mounting holes are matched with the first through holes; the bracket assembly further includes a first fastener passing through the first mounting hole and the first through hole to secure the first mounting tab to the first support block.

As a further improved technical solution of the present invention, the size of the first through hole is larger than the size of the first mounting hole, so that the position of the first mounting piece relative to the first support block can be adjusted.

As a further improved technical solution of the present invention, the two first side walls clamp two sides of the first supporting block to realize the positioning of the first mounting piece in the first direction; the first mounting piece is adjustable in position relative to the first support block in a second direction perpendicular to the first direction and a third direction perpendicular to the first direction and the second direction.

As a further improved technical solution of the present invention, the first fastening member includes a first nut fixed by welding to one of the first side walls and a first bolt passing through the first mounting hole and the first through hole from the other of the first side walls to be fitted with the first nut.

As a further improved technical solution of the present invention, the second supporting block is provided with a second through hole penetrating through the second supporting block along the first direction; the second mounting piece is provided with two second side walls which are respectively positioned at two sides of the second supporting block, each second side wall is provided with a second mounting hole which penetrates through the second side wall along the first direction, and the second mounting holes are matched with the second through holes; the bracket assembly further includes a second fastener passing through the second mounting hole and the second through hole to secure the second mounting tab to the second support block.

As a further improved technical solution of the present invention, the size of the second through hole is larger than that of the second mounting hole, so that the position of the second mounting piece relative to the second supporting block can be adjusted.

As a further improved technical solution of the present invention, the two second side walls clamp two sides of the second supporting block to realize the positioning of the second mounting piece in the first direction; the second mounting piece is adjustable in position relative to the second support block in a second direction perpendicular to the first direction and a third direction perpendicular to the first and second directions.

As a further improved technical solution of the present invention, the second fastening member includes a second nut fixed by welding to one of the second side walls and a second bolt passing through the second mounting hole and the second through hole from the other of the second side walls to be fitted with the second nut.

As a further improved technical solution of the present invention, the bracket includes a first through hole and a second through hole spaced apart from the first through hole; the first mounting piece comprises a first base part connected with the two first side walls, and the first base part comprises a first waist-shaped hole matched with the first through hole and a second waist-shaped hole matched with the second through hole; the second mounting piece comprises a second base part connected with the two second side walls, and the second base part comprises a third waist-shaped hole matched with the first waist-shaped hole and a fourth waist-shaped hole matched with the second waist-shaped hole; the lengths of the first waist-shaped hole and the third waist-shaped hole along the first direction are both greater than that of the first through hole, and the lengths of the second waist-shaped hole and the fourth waist-shaped hole along the first direction are both greater than that of the second through hole; the bracket assembly further comprises a first locking member passing through the third waist-shaped hole, the first waist-shaped hole and the first through hole, and a second locking member passing through the fourth waist-shaped hole, the second waist-shaped hole and the second through hole.

As a further improved aspect of the present invention, the first mounting piece and the second mounting piece can share parts.

As a further improved technical solution of the present invention, the first supporting block, the second supporting block, the first mounting piece and the second mounting piece of the bracket assembly are two and are respectively arranged at intervals.

As a further improved technical scheme of the utility model, the two bracket assemblies are respectively positioned at two sides of the first cylinder and the second cylinder.

As a further improved technical scheme of the utility model, the tail gas aftertreatment package is not provided with a binding band.

Compared with the prior art, the utility model is provided with the first installation piece fixedly connected with the first supporting block and the second installation piece fixedly connected with the second supporting block, and the first installation piece, the second installation piece and the bracket are separately arranged and fixedly connected, so that tolerance can be absorbed through the first installation piece and the second installation piece, and the assembly difficulty is reduced.

Drawings

FIG. 1 is a schematic perspective view of an exhaust aftertreatment package of the present invention in the illustrated embodiment.

Fig. 2 is a perspective view of fig. 1 from another angle.

Fig. 3 is a rear view of fig. 1.

Fig. 4 is a front view of fig. 1.

Fig. 5 is a partially exploded view of fig. 3.

Fig. 6 is a partially exploded perspective view of fig. 1.

Fig. 7 is a partial exploded perspective view of fig. 6 at another angle.

Detailed Description

The following detailed description of the embodiments of the utility model will be described in conjunction with the accompanying drawings, in which, if there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the accompanying drawings, like numbers or symbols in different drawings represent the same or similar elements unless otherwise specified. The statements made in the following exemplary embodiments do not represent all embodiments of the present invention, but rather they are merely examples of products consistent with the present invention as recited in the claims of the present invention.

The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention. It should be understood that the use of terms such as "first," "second," and the like, in the description and in the claims of the present invention do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another.

Referring to fig. 1-7, an exhaust aftertreatment package 100 is shown in a generally U-shape. The tail gas aftertreatment package 100 comprises a first cylinder 1, a second cylinder 2 arranged side by side with the first cylinder 1, and a bracket assembly 3 fixedly connected with the first cylinder 1 and the second cylinder 2. In the illustrated embodiment of the present invention, the first cylinder 1 and the second cylinder 2 are parallel to each other. Of course, in other embodiments, the first cylinder 1 and the second cylinder 2 may also be at a certain angle.

Specifically, the exhaust aftertreatment package 100 includes a first aftertreatment carrier assembly, a second aftertreatment carrier assembly, a third aftertreatment carrier assembly, and a mixer assembly between the second aftertreatment carrier assembly and the third aftertreatment carrier assembly. The first aftertreatment carrier assembly includes a first housing and a first aftertreatment carrier (e.g., a diesel oxidation catalyst carrier, DOC) encapsulated in the first housing. The second aftertreatment carrier assembly includes a second housing and a second aftertreatment carrier (e.g., diesel particulate trap, DPF) enclosed in the second housing. The third aftertreatment carrier assembly includes a third housing and a third aftertreatment carrier (e.g., a selective catalytic reduction, SCR) encapsulated in the third housing. In an embodiment of the present invention, the first cylinder 1 includes the first housing and the second housing, and the second cylinder 2 includes the third housing.

In the illustrated embodiment of the present invention, the bracket assemblies 3 are two and are respectively located at two sides (e.g., left and right sides) of the first cylinder 1 and the second cylinder 2. Since the two bracket assemblies 3 have the same structure, only one of them will be described as an example.

The bracket assembly 3 includes a first supporting block 31 fixed to the first cylinder 1, a second supporting block 32 fixed to the second cylinder 2, a mounting groove 30 located between the first supporting block 31 and the second supporting block 32, a bracket 33 at least partially accommodated in the mounting groove 30, a first mounting piece 34 fixedly connected to the first supporting block 31, and a second mounting piece 35 fixedly connected to the second supporting block 32. The first mounting piece 34, the second mounting piece 35 and the bracket 33 are separately arranged and fixedly connected.

Specifically, the first support block 31 is fixed to the first housing 1 by welding. The first support block 31 has a substantially U-shaped cross section. The first support block 31 is provided with a first through hole 311 penetrating the first support block 31 in a first direction a-a (e.g., left-right direction).

The second supporting block 32 is fixed to the second housing 2 by welding. The second supporting block 32 has a substantially U-shaped cross section. The second supporting block 32 is provided with a second through hole 321 penetrating the second supporting block 32 along the first direction a-a.

The bracket 33 includes a first through hole 331 and a second through hole 332 spaced apart from the first through hole 331.

The first mounting piece 34 is provided with two first sidewalls 341 on both sides of the first support block 31, and a first base 342 connected to the two first sidewalls 341. In the illustrated embodiment of the utility model, the first mounting tab 34 is stamped and formed from a single piece of sheet metal. The two first side walls 341 clamp both sides of the first supporting block 31 to realize the positioning of the first mounting piece 34 in the first direction a-a. Each first side wall 341 is provided with a first mounting hole 3411 penetrating the first side wall 341 along the first direction a-a, and the first mounting hole 3411 is matched with the first through hole 311. In the illustrated embodiment of the present invention, the first through hole 311 has a size larger than that of the first mounting hole 3411 so that the position of the first mounting piece 34 with respect to the first support block 31 can be adjusted. Specifically, the first mounting piece 34 is adjustable in position relative to the first support block 31 in a second direction B-B (e.g., left-right direction) perpendicular to the first direction a-a and a third direction C-C (e.g., up-down direction) perpendicular to the first direction a-a and the second direction B-B.

The bracket assembly 3 further includes a first fastener 36 passing through the first mounting hole 3411 and the first through hole 311 to fix the first mounting piece 34 to the first support block 31. In the illustrated embodiment of the present invention, the first fastening member 36 includes a first nut 361 welded and fixed to one of the first sidewalls 341 and a first bolt 362 passing through the first mounting hole 3411 and the first through hole 311 from the other of the first sidewalls 341 to be engaged with the first nut 361. With this arrangement, since the first nut 361 is fixed, the first bolt 362 can be fixed to the first nut 361 from only one direction, thereby improving convenience of mounting and dismounting. Preferably, the bracket assembly 3 further includes a sleeve (not shown) between the two first sidewalls 341, through which the first bolt 362 passes, and the sleeve is used for supporting the two first sidewalls 341 during tightening of the first bolt 362 to reduce deformation of the first mounting piece 34.

Similarly, the second mounting piece 35 is provided with two second sidewalls 351 respectively located at both sides of the second supporting block 32 and a second base 352 connected to the two second sidewalls 351. In the illustrated embodiment of the utility model, the second mounting piece 35 is stamped from a single piece of sheet metal. The two second side walls 351 sandwich both sides of the second supporting block 32 to achieve the positioning of the second mounting piece 35 in the first direction a-a. Each of the second sidewalls 351 is provided with a second mounting hole 3511 penetrating the second sidewall 351 along the first direction a-a, and the second mounting hole 3511 is matched with the second through hole 321. In the illustrated embodiment of the present invention, the second through hole 321 has a size larger than that of the second mounting hole 3511 so that the position of the second mounting piece 35 with respect to the second supporting block 32 can be adjusted. Specifically, the second mounting piece 35 is adjustable in position relative to the second support block 32 in a second direction B-B (e.g., a left-right direction) perpendicular to the first direction a-a and a third direction C-C (e.g., an up-down direction) perpendicular to the first direction a-a and the second direction B-B.

The bracket assembly 3 further includes a second fastener 37 passing through the second mounting hole 3511 and the second through hole 321 to fix the second mounting piece 35 to the second supporting block 32. In the illustrated embodiment of the present invention, the second fastening member 37 includes a second nut 371 welded to one of the second sidewalls 351 and a second bolt 372 passing through the second mounting hole 3511 and the second through hole 321 from the other of the second sidewalls 351 to be engaged with the second nut 371. With this arrangement, since the second nut 371 is fixed, it is possible to fix the second bolt 372 to the second nut 371 from only one direction, thereby improving convenience of mounting and dismounting. Preferably, the bracket assembly 3 further includes a sleeve (not shown) between the two second sidewalls 351, through which the second bolt 372 passes, and the sleeve is used for supporting the two second sidewalls 351 during tightening of the second bolt 372 to reduce deformation of the second mounting plate 35.

The first base 342 includes a first kidney-shaped hole 3421 matched with the first through hole 331 and a second kidney-shaped hole 3422 matched with the second through hole 332. The second base 352 comprises a third waist-shaped aperture 3521 cooperating with the first waist-shaped aperture 3421 and a fourth waist-shaped aperture 3522 cooperating with the second waist-shaped aperture 3422; the lengths of the first waist-shaped hole 3421 and the third waist-shaped hole 3521 in the first direction a-a are both greater than the first through hole 331, and the lengths of the second waist-shaped hole 3422 and the fourth waist-shaped hole 3522 in the first direction a-a are both greater than the second through hole 332. The bracket assembly 3 further includes a first locking member 38 passing through the third kidney-shaped hole 3521, the first kidney-shaped hole 3421 and the first through hole 331, and a second locking member 39 passing through the fourth kidney-shaped hole 3522, the second kidney-shaped hole 3422 and the second through hole 332. The first locking member 38 and the second locking member 39 may be bolts or the like.

Preferably, the first mounting piece 34 and the second mounting piece 35 can be shared by parts, thereby reducing the cost. Specifically, in the illustrated embodiment of the present invention, the first mounting piece 34 can be rotated 180 ° in the vertical plane as the second mounting piece 35, and vice versa.

In the illustrated embodiment of the present invention, the first supporting block 31, the second supporting block 32, the first mounting piece 34 and the second mounting piece 35 of the bracket assembly 3 are two and are respectively disposed at intervals.

Compared with the prior art, the welding method and the welding device can appropriately reduce the process difficulty when the first supporting block 31 is welded to the first cylinder 1 and the second supporting block 32 is welded to the second cylinder 2, thereby being beneficial to improving the welding efficiency. The deformation or tolerance accumulation generated in the welding process is absorbed by the third waist-shaped hole 3521, the first waist-shaped hole 3421, the fourth waist-shaped hole 3522 and the second waist-shaped hole 3422. In addition, assembly tolerances of the first cylinder 1 and the second cylinder 2 can also be absorbed in this way. Since the third waist-shaped hole 3521 and the first waist-shaped hole 3421 have appropriate long dimensions in the first direction a-a, the overlapping degree with the first through hole 331 in the second direction B-B can be improved to facilitate the installation of the first locking member 38. Similarly, since the fourth waist-shaped hole 3522 and the second waist-shaped hole 3422 have proper lengths in the first direction a-a, the overlapping ratio with the second through-hole 332 in the second direction B-B can be improved to facilitate the installation of the second locker 39. The tail gas aftertreatment package 100 of the utility model is connected inside and outside through the bracket component 3 without arranging a binding band, thereby solving a series of potential risks in the design of the binding band, such as damage to a cylinder body caused by the tightening of the binding band, loosening caused by the untimely tightening of the binding band, damping of the moment of the binding band and the like.

The above embodiments are only for illustrating the utility model and not for limiting the technical solutions described in the utility model, and the understanding of the present specification should be based on the technical personnel in the field, and although the present specification has described the utility model in detail with reference to the above embodiments, the technical personnel in the field should understand that the technical personnel in the field can still make modifications or equivalent substitutions to the present invention, and all the technical solutions and modifications thereof without departing from the spirit and scope of the present invention should be covered in the claims of the present invention.

Claims

1. The utility model provides a tail gas aftertreatment encapsulation, its includes first barrel, with the second barrel that first barrel arranged side by side and with first barrel with second barrel fixed connection's bracket component, its characterized in that: the support assembly comprises a first support block fixed on the first cylinder, a second support block fixed on the second cylinder, a mounting groove located between the first support block and the second support block, a support at least partially contained in the mounting groove, a first mounting piece fixedly connected with the first support block and a second mounting piece fixedly connected with the second support block, and the first mounting piece, the second mounting piece and the support are separately arranged and fixedly connected.

2. The exhaust aftertreatment package of claim 1, wherein: the first support block is provided with a first through hole penetrating through the first support block along a first direction; the first mounting piece is provided with two first side walls which are respectively positioned at two sides of the first supporting block, each first side wall is provided with a first mounting hole which penetrates through the first side wall along the first direction, and the first mounting holes are matched with the first through holes; the bracket assembly further includes a first fastener passing through the first mounting hole and the first through hole to secure the first mounting tab to the first support block.

3. The exhaust aftertreatment package of claim 2, wherein: the size of the first through hole is larger than that of the first mounting hole, so that the position of the first mounting piece relative to the first supporting block can be adjusted.

4. The exhaust aftertreatment package of claim 3, wherein: the two first side walls clamp two sides of the first supporting block so as to realize the positioning of the first mounting piece in the first direction; the first mounting piece is adjustable in position relative to the first support block in a second direction perpendicular to the first direction and a third direction perpendicular to the first direction and the second direction.

5. The exhaust aftertreatment package of claim 2, wherein: the first fastener comprises a first nut fixed on one first side wall in a welding mode and a first bolt penetrating through the first mounting hole and the first through hole from the other first side wall to be matched with the first nut.

6. The exhaust aftertreatment package of claim 2, wherein: the second supporting block is provided with a second through hole penetrating through the second supporting block along the first direction; the second mounting piece is provided with two second side walls which are respectively positioned at two sides of the second supporting block, each second side wall is provided with a second mounting hole which penetrates through the second side wall along the first direction, and the second mounting holes are matched with the second through holes; the bracket assembly further includes a second fastener passing through the second mounting hole and the second through hole to secure the second mounting tab to the second support block.

7. The exhaust aftertreatment package of claim 6, wherein: the size of the second through hole is larger than that of the second mounting hole so that the position of the second mounting piece relative to the second supporting block can be adjusted.

8. The exhaust aftertreatment package of claim 7, wherein: the two second side walls clamp two sides of the second supporting block so as to realize the positioning of the second mounting piece in the first direction; the second mounting piece is adjustable in position relative to the second support block in a second direction perpendicular to the first direction and a third direction perpendicular to the first and second directions.

9. The exhaust aftertreatment package of claim 6, wherein: the second fastener comprises a second nut fixed on one second side wall in a welding mode and a second bolt penetrating through the second mounting hole and the second through hole from the other second side wall to be matched with the second nut.

10. The exhaust aftertreatment package of claim 6, wherein: the bracket comprises a first through hole and a second through hole arranged at intervals with the first through hole; the first mounting piece comprises a first base part connected with the two first side walls, and the first base part comprises a first waist-shaped hole matched with the first through hole and a second waist-shaped hole matched with the second through hole; the second mounting piece comprises a second base part connected with the two second side walls, and the second base part comprises a third waist-shaped hole matched with the first waist-shaped hole and a fourth waist-shaped hole matched with the second waist-shaped hole; the lengths of the first waist-shaped hole and the third waist-shaped hole along the first direction are both greater than that of the first through hole, and the lengths of the second waist-shaped hole and the fourth waist-shaped hole along the first direction are both greater than that of the second through hole; the bracket assembly further comprises a first locking member passing through the third waist-shaped hole, the first waist-shaped hole and the first through hole, and a second locking member passing through the fourth waist-shaped hole, the second waist-shaped hole and the second through hole.

11. The exhaust aftertreatment package of any one of claims 1 to 10, wherein: the first mounting piece and the second mounting piece can share parts.

12. The exhaust aftertreatment package of claim 1, wherein: the first supporting block, the second supporting block, the first mounting piece and the second mounting piece of the bracket component are two and are arranged at intervals respectively.

13. The exhaust aftertreatment package of claim 1, wherein: the bracket components are two and are respectively positioned on two sides of the first cylinder and the second cylinder.

14. The exhaust aftertreatment package of claim 1, wherein: the exhaust aftertreatment package does not have a strap.