CN215890158U - Air inlet end structure of aftertreatment side air inlet assembly - Google Patents
Air inlet end structure of aftertreatment side air inlet assembly Download PDFInfo
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- CN215890158U CN215890158U CN202122274409.0U CN202122274409U CN215890158U CN 215890158 U CN215890158 U CN 215890158U CN 202122274409 U CN202122274409 U CN 202122274409U CN 215890158 U CN215890158 U CN 215890158U
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- end cover
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- flanging
- barrel
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Abstract
The utility model provides an air inlet end structure of an aftertreatment side air inlet assembly, which comprises a cylinder body, an end cover and an air inlet pipe, wherein the end cover is arranged at one axial end of the cylinder body; the end cover is provided with an end cover side flanging, and one axial end of the cylinder body can be inserted with the end cover side flanging; the end cover is provided with an air inlet channel, the air inlet channel is perpendicular to the axis of the cylinder, the air inlet channel extends along the radial direction of the end cover and is communicated with the cylinder, and the end cover is provided with a semicircular end cover upper flanging along the air inlet channel; the cylinder body upper flanging and the end cover upper flanging can be in butt joint to form a circular sleeve joint portion, and the air inlet pipe can be inserted into the sleeve joint portion. This application simple structure reduces manufacturing procedure, and the location is convenient and accurate.
Description
Technical Field
The utility model relates to the technical field of diesel engine aftertreatment, in particular to an air inlet end structure of an aftertreatment side air inlet assembly.
Background
With the rapid development of the automobile industry, the national emission standard enters the sixth stage of the country, the product structure is upgraded from the straight cylinder type and box type products in the fourth and fifth stages of the country to the U type and S type and more complex box type structures in the sixth stage of the country, the increasingly complex product structures increase the number of parts on the post-processing assembly, and post-processing enterprises put higher requirements on cost control while pursuing quality.
Optimizing the product structure, reducing the number of parts, and meeting the manufacturability and assemblability of the parts of the product are the current problems that need important attention. Meanwhile, the non-road working condition is more severe, and the requirement on the reliability of the product is higher.
The existing aftertreatment side air inlet assembly air inlet end structure (as shown in an attached drawing 1) has the problems of difficult welding and difficult positioning in the matching of parts, the matching size between a cylinder body and an end cover is difficult to control during combination, the deviation of the total length of the air inlet end is large, a reinforcing patch is required to be used for fixing an air inlet pipe after the cylinder body and the end cover are assembled, the fitting degree of the reinforcing patch and the end cover and the cylinder body is difficult to control, and the repair welding condition can be inevitably generated.
Based on the above problems, it is necessary to optimize the structure of the inlet end to reduce the overall length deviation of the inlet end, omit the use of a reinforcement patch, and reduce the tooling positioning and welding processes of the reinforcement patch.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the air inlet end structure of the aftertreatment side air inlet assembly, the total length of the air inlet end is good in consistency, the positioning and welding procedures are reduced, the repair welding operation is omitted, the material and the processing steps are saved, and the use requirement is met. The technical scheme adopted by the utility model is as follows:
the air inlet end structure of the aftertreatment side air inlet assembly comprises a barrel, an end cover and an air inlet pipe, wherein the end cover is arranged at one axial end of the barrel, the air inlet pipe is arranged perpendicular to the axis of the barrel, the barrel and the end cover are both connected to one axial end of the air inlet pipe, a semicircular barrel upturn edge is arranged on the surface of the barrel and extends along the circumferential direction of the barrel, a semicircular opening is arranged at the joint of the surface of the barrel and the upturn edge of the barrel, and the semicircular opening is communicated with one axial end of the barrel;
the end cover is provided with an end cover side flanging, and one axial end of the cylinder body can be inserted with the end cover side flanging;
the end cover is provided with an air inlet channel, the air inlet channel is perpendicular to the axis of the cylinder, the air inlet channel extends along the radial direction of the end cover and is communicated with the cylinder, and the end cover is provided with a semicircular end cover upper flanging along the air inlet channel;
when one axial end of the cylinder body is inserted into the end cover side flanging on the end cover, the cylinder body upper flanging and the end cover upper flanging are in butt joint to form a circular sleeve joint part, and the air inlet pipe can be inserted into the sleeve joint part.
Furthermore, a positioning hole is formed in the surface of the cylinder body.
Further, an air inlet flange is arranged at one axial end, far away from the cylinder, of the air inlet pipe.
The utility model has the advantages that:
this application sets up the axial installation location that the end cover side turn-ups was used for cooperating the barrel on the end cover for the degree of depth that the barrel impressed the end cover obtains guaranteeing, the inlet end overall length uniformity is good, the barrel that sets up on the barrel turns up the end cover that sets up on the end cover and joins into the portion of cup jointing, be used for the location intake pipe during the use, thereby leave out the welding step of strengthening the patch, reduce frock location and repair welding, be favorable to reducing the die sinking and the processing labour cost of part, and the inlet end structure of constituteing is reliable, the assembly is also simple.
Drawings
Fig. 1 is a structure view of an intake end in the prior art.
Fig. 2 is a structural view of the present invention.
Fig. 3 is a structural view of the cartridge of the present invention.
Fig. 4 is a structural view of the end cap of the present invention.
Fig. 5 is a plan view of the present invention.
In the figure: 1-cylinder body, 2-end cover, 3-air inlet pipe, 4-reinforcing patch, 5-air inlet flange, 101-cylinder body upper flanging, 102-opening, 103-positioning hole, 201-end cover side flanging, 202-air inlet channel and 203-end cover upper flanging.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to the attached drawings 2-5, the utility model provides a gas inlet end structure of a post-treatment side gas inlet assembly, which comprises a cylinder body 1, an end cover 2 and a gas inlet pipe 3, wherein the end cover 2 is arranged at one axial end of the cylinder body 1, the gas inlet pipe 3 is arranged perpendicular to the axis of the cylinder body 1, and the cylinder body 1 and the end cover 2 are both connected to one axial end of the gas inlet pipe 3.
In the application, a semicircular barrel body upper flanging 101 is arranged on the surface of the barrel body 1, the barrel body upper flanging 101 extends along the circumferential direction of the barrel body 1, a semicircular opening 102 is arranged at the joint of the surface of the barrel body 1 and the barrel body upper flanging 101, and the semicircular opening 102 is communicated with one axial end of the barrel body 1; the semicircular opening 102 enables exhaust airflow to smoothly enter the cylinder body 1 without blockage, the cylinder body upturning edge 101 can be integrally formed with the cylinder body 1, an additional welding step is not needed, and cost is saved.
In the application, the end cover 2 is provided with an end cover side flanging 201, and one axial end of the cylinder body 1 can be inserted into the end cover side flanging 201; the internal diameter of upper cover side turn-ups 201 is not less than the external diameter of barrel 1, guarantees that barrel 1 can insert upper cover side turn-ups 201 smoothly, and fixes a position the mounted position of barrel 1 when 1 axial one end after inserting withstands 2 inner walls of end cover promptly, and whole inlet end structure is protected along 1 axial overall length of barrel, and then welding end cover side turn-ups 201 and barrel 1 junction can.
In the application, an air inlet channel 202 is arranged on the end cover 2, the air inlet channel 202 is arranged perpendicular to the axis of the cylinder 1, the air inlet channel 202 extends along the radial direction of the end cover 2 and is communicated with the cylinder 1, and a semicircular end cover upper flanging 203 is arranged on the end cover 2 along the air inlet channel 202; the exhaust gas enters the intake passage 202 through the intake pipe 3, and the flow direction of the exhaust gas turns through 90 ° and then enters the cylinder 1.
Specifically, when one axial end of the cylinder 1 is inserted into the end cover side flanging 201 on the end cover 2, the cylinder upper flanging 101 and the end cover upper flanging 203 are butted to form a circular sleeve joint part, and the air inlet pipe 3 can be inserted into the sleeve joint part; the barrel body upper flanging 101 and the end cover upper flanging 203 are semicircular, the combined sleeve joint part is complete and circular, the inner diameter of the sleeve joint part is not smaller than the outer diameter of the air inlet pipe 3, the air inlet pipe 3 can be smoothly inserted, and the length of the sleeve joint part extending along the air inlet channel 202 can be adjusted as required.
Referring to the attached drawings 1 and 2, compared with the air inlet end structure in the prior art, the cylinder 1 is directly butted to the side face of the end cover 2, then the air inlet pipe 3 is inserted into the end cover 2, the air inlet pipe 3 is welded by the reinforcing patch 4, the outer surfaces of the end cover 2 and the cylinder 1 are welded by the reinforcing patch 4, not only are the positioning between the cylinder 1, the end cover 2 and the air inlet pipe 3 poor, the matching size between the cylinder 1 and the end cover 2 is difficult to control during combination, the deviation of the total length of the air inlet end is large, the air inlet pipe 3 needs to be fixed by the reinforcing patch 4 after the cylinder 1 and the end cover 2 are assembled, the fitting degree of the reinforcing patch 4 with the end cover 2 and the cylinder 1 is difficult to control, and the welding condition can be generated inevitably.
The end cover side flanging 201 is arranged on the end cover 2 and used for being matched with the axial installation and positioning of the cylinder body 1, so that the depth of pressing the cylinder body 1 into the end cover 2 is guaranteed, the consistency of the total length of the air inlet end is good, the cylinder body upper flanging 101 arranged on the cylinder body 1 and the end cover upper flanging 203 arranged on the end cover 2 are combined into a sleeving part and used for positioning the air inlet pipe 3 during use, the welding step of reinforcing the patch 4 is omitted, and the tool positioning and repair welding are reduced.
As an embodiment of the application, the surface of the cylinder 1 is provided with at least one positioning hole 103, and the number of the positioning holes 103 is used for installing a joint of the exhaust temperature sensor so as to measure the temperature of the exhaust airflow in the cylinder 1.
In order to facilitate connection of the air inlet pipe 3 and upstream equipment, an air inlet flange 5 is arranged at one axial end, far away from the cylinder body 1, of the air inlet pipe 3.
To sum up, this application end cover increases the turn-ups design, and the barrel depth of impressing is leaned on the end cover to guarantee, and inlet end axial overall length uniformity is good, reduces the welding of strengthening the patch in production, reduces frock location and welding process, and product stability is good.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (3)
1. The utility model provides an air inlet end structure of aftertreatment side air inlet assembly, includes barrel (1), end cover (2) and intake pipe (3), end cover (2) set up the axial one end at barrel (1), the axis of intake pipe (3) perpendicular to barrel (1) is arranged, barrel (1) and end cover (2) all connect in the axial one end of intake pipe (3), its characterized in that:
the surface of the cylinder body (1) is provided with a semicircular cylinder body upper flanging (101), the cylinder body upper flanging (101) extends along the circumferential direction of the cylinder body (1), a semicircular opening (102) is formed at the joint of the surface of the cylinder body (1) and the cylinder body upper flanging (101), and the semicircular opening (102) is communicated with one axial end of the cylinder body (1);
an end cover side flanging (201) is arranged on the end cover (2), and one axial end of the cylinder body (1) can be inserted into the end cover side flanging (201);
the end cover (2) is provided with an air inlet channel (202), the air inlet channel (202) is perpendicular to the axis of the cylinder body (1), the air inlet channel (202) extends along the radial direction of the end cover (2) and is communicated with the cylinder body (1), and the end cover (2) is provided with a semicircular end cover upper flanging (203) along the air inlet channel (202);
when the axial end of the cylinder body (1) is inserted into the end cover side flanging (201) on the end cover (2), the cylinder body upper flanging (101) and the end cover upper flanging (203) are butted to form a sleeve joint part, and the air inlet pipe (3) can be inserted into the sleeve joint part.
2. The intake end structure of an aftertreatment side intake assembly according to claim 1, wherein: the surface of the cylinder body (1) is provided with a positioning hole (103).
3. The intake end structure of an aftertreatment side intake assembly according to claim 1, wherein: and an air inlet flange (5) is arranged at one axial end of the air inlet pipe (3) far away from the cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122274409.0U CN215890158U (en) | 2021-09-18 | 2021-09-18 | Air inlet end structure of aftertreatment side air inlet assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122274409.0U CN215890158U (en) | 2021-09-18 | 2021-09-18 | Air inlet end structure of aftertreatment side air inlet assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215890158U true CN215890158U (en) | 2022-02-22 |
Family
ID=80349292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122274409.0U Active CN215890158U (en) | 2021-09-18 | 2021-09-18 | Air inlet end structure of aftertreatment side air inlet assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215890158U (en) |
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2021
- 2021-09-18 CN CN202122274409.0U patent/CN215890158U/en active Active
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