CN219242036U

CN219242036U - Post-processing device for non-road vehicle

Info

Publication number: CN219242036U
Application number: CN202320296627.0U
Authority: CN
Inventors: 林鹏飞; 张静; 袁可平; 李东东
Original assignee: Wuxi Henghe Ep Tech Co ltd
Current assignee: Wuxi Henghe Ep Tech Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-06-23
Anticipated expiration: 2033-02-23

Abstract

The utility model provides a post-treatment device for a non-road vehicle, which is reasonable in structure, facilitates after-sale cleaning and disassembly of a DPF unit, reduces cost, and is characterized in that a cylinder body of the DPF unit and a cylinder body of an air outlet pipe are integrally formed, the cylinder body of the DPF unit is also connected with end covers, arc-shaped openings are respectively arranged on the end covers and the cylinder body of the DPF unit, the two arc-shaped openings are matched to form a pipeline connection opening matched with the air outlet pipe, the air outlet pipe is inserted into the cylinder body of the DPF unit from the pipeline connection opening, the end covers are provided with outwards protruding pipeline connection parts, and the pipeline connection parts are provided with curved surfaces matched with the air outlet pipe.

Description

Post-processing device for non-road vehicle

Technical Field

The utility model relates to the technical field of non-road post-processing devices, in particular to a post-processing device for a non-road vehicle.

Background

The DPF unit is on a diesel vehicle and represents a diesel particulate trap. The DPF unit is arranged in an exhaust system of a diesel vehicle type and mainly used for capturing particulate matters entering the exhaust system after diesel combustion through a filtering device on the surface and in the diesel vehicle type so as to purify exhaust. The use of DPF units also presents problems, and it is relatively common for the DPF units to become severely clogged. In the event of a severe blockage of the DPF unit, the trap needs to be removed for manual cleaning, even if the trap device needs to be replaced.

The existing non-road aftertreatment device scheme, considering that the DPF unit is seriously blocked, needs to be detached and replaced or a high-pressure air gun is adopted to purge the end face of a carrier, the general design thought is that the DPF unit is connected with the front and back through hoops to enable the DPF unit to be detachable, FIG. 1 shows the existing non-road aftertreatment device, an air inlet pipe 100 cylinder body and a DOC unit 200 are integrally arranged, the DOC unit 200 is connected with the DPF unit 300 through a hoop 500, the DPF unit 300 is connected with an air outlet pipe 400 cylinder body through the hoop 500, the air inlet pipe 100 and the air outlet pipe are provided with meshes for air inlet and air outlet, the cost is high due to the adoption of the double-hoop scheme, and the multiple hoops are not easy to install after being disassembled.

Considering that the vibration of the whole vehicle is severe, the prior non-road post-treatment device directly and integrally inserts an air inlet pipe and an air outlet pipe into a cylinder body of the air inlet pipe and the air outlet pipe and performs plug welding with the cylinder body to strengthen the structural strength, as shown in fig. 2, fig. 2 shows a cross section view of an air outlet pipe 400 of the non-road post-treatment device in fig. 1, a hole on the cylinder body of the air outlet pipe and the air outlet pipe 400 are subjected to plug welding, the plug welding process of the air outlet pipe is complex, the processing and manufacturing difficulty is high, and by adopting the air inlet and outlet pipe in the form, soot blowing equipment cannot directly purge the carrier end face of a DPF unit under the condition of not disassembling.

Disclosure of Invention

The utility model provides an after-treatment device for an off-road vehicle, which has reasonable structure, is convenient for cleaning after sale of a DPF unit and disassembling the DPF unit, and reduces cost.

The technical scheme is as follows: the utility model provides a aftertreatment device for non-road vehicle, its includes DOC unit and DPF unit that connects through the staple bolt, the front side of DOC unit with the rear side of DPF unit is equipped with intake pipe and outlet duct respectively, its characterized in that: the barrel and the outlet duct barrel integrated into one piece of DPF unit, the barrel of DPF unit still is connected with the end cover, the end cover with be equipped with arc opening on the barrel of DPF unit respectively, two arc opening cooperation form with outlet duct assorted pipeline connector, the outlet duct is followed the pipeline connector inserts in the barrel of DPF unit, be equipped with outside convex pipeline connecting portion on the end cover, pipeline connecting portion have with outlet duct assorted curved surface.

Furthermore, a welding opening is further formed in the pipeline connecting portion, and the air outlet pipe is connected with the end cover in a welding mode through the welding opening.

Further, one side of the air outlet pipe, which faces the pipeline connecting portion, is provided with an arc-shaped connecting portion matched with the curved surface of the pipeline connecting portion, and one side of the air outlet pipe, which faces the DPF unit, is provided with an opening.

Further, the DOC unit and the shell of the DPF unit are provided with mounting hoops, the aftertreatment device is fixed on the mounting base plate through the mounting hoops, and the mounting hoops are connected with the mounting base plate in a welding mode.

Further, the DOC unit and the DPF unit are provided with a protective housing mounting bracket avoiding the mounting anchor ear on the shell, a mounting hole is formed in the protective housing mounting bracket, the post-treatment protective housing is mounted on the outer side of the post-treatment device in a matched mode through a bolt and the mounting hole, protective housing end covers are further arranged at two ends of the post-treatment protective housing, and the protective housing end covers are connected with the post-treatment protective housing in a matched mode through the bolt and the through hole.

Further, the aftertreatment protective housing includes two lamellas arc backplate at least, the edge of arc backplate corresponds and is provided with the connecting hole, and two adjacent lamellas the edge overlap of arc backplate sets up, and the bolt passes two adjacent lamellas the connecting hole of arc backplate with mounting hole on the protective housing installing support will the arc backplate is fixed aftertreatment device's outside, correspond on the arc backplate intake pipe, outlet duct the staple bolt with the installation staple bolt is provided with dodges the breach, the intake pipe with outlet duct position department still is provided with the patch board, carry out fixed connection through the bolt between patch board and the arc backplate.

Further, be provided with a plurality of fixed bolsters on the aftertreatment protective housing, pencil and sensor pass through the fixed bolster is fixed on the aftertreatment protective housing, the detection end of sensor passes through the through-hole on the aftertreatment protective housing stretches into in the DOC unit with in the sensor mount pad on the DPF unit.

Further, a first protective cover and a second protective cover are further fixed on the aftertreatment protective housing, the first protective cover is arranged on the wire harness and the sensor to seal the wire harness and the sensor, and the second protective cover is arranged on the avoidance notch to seal the avoidance notch.

Further, the first protection cover and the second protection cover are fixed on the aftertreatment protection shell through the matching of bolts and mounting holes, and the edges of the first protection cover and the second protection cover are overlapped and provided with common bolts and mounting holes.

Further, the first protective cover is also provided with a detachable side guard plate, and a wire harness passing hole is formed in the side guard plate.

According to the aftertreatment device for the non-road vehicle, the cylinder body of the DPF unit and the cylinder body of the air outlet pipe are integrally formed, so that the use of the anchor ear is reduced, meanwhile, the requirement of purging the DPF unit after sale is considered, the part of the structure of the end cover is directly used for forming the outwards protruding pipeline connecting part, the pipeline connecting part is also provided with the welding opening, the air outlet pipe can be inserted from the pipeline connecting opening and then is fixedly connected with the end cover through the welding opening, the fixing of the air outlet pipe is more reliable, the structural strength is higher, the requirement of the non-road is met, the air outlet pipe is in the process of eliminating the previous mesh holes, one side facing the DPF unit is arranged to be open, after sale purging equipment can directly extend into the carrier of the DPF unit from the air outlet pipe for purging, and the outwards protruding pipeline connecting part formed by the part of the structure of the end cover is also used for reducing the size of the cylinder body of the air outlet pipe, so that the structure of the aftertreatment device can be more compact.

Drawings

FIG. 1 is a schematic diagram of a conventional off-road aftertreatment device;

FIG. 2 is a cross-sectional view taken along the direction A-A of FIG. 1;

FIG. 3 is a schematic illustration of an aftertreatment device for an off-road vehicle, in an embodiment;

FIG. 4 is a schematic illustration of an exploded outlet duct structure of an aftertreatment device for an off-road vehicle, in an embodiment;

FIG. 5 is a schematic diagram of an embodiment of an after-installation aftertreatment protective housing for an aftertreatment device of an off-road vehicle;

FIG. 6 is a schematic view of an embodiment of an aftertreatment device for an off-road vehicle with a protective cover separated from the protective cover;

FIG. 7 is a perspective view of an embodiment of an aftertreatment device for an off-road vehicle at a first view angle after a boot is installed;

fig. 8 is a perspective view of the aftertreatment device for an off-road vehicle in the embodiment at a second perspective view after the boot is installed.

Detailed Description

As described in the background art, in view of the fact that the post-treatment device of the non-road vehicle of the existing design adopts the double-hoop scheme, the cost is higher, the after-sale disassembly of one more hoop is not easy to install, the plug welding process of the adopted air outlet pipe is complex, the processing and manufacturing difficulty is higher, in the existing design, the soot blower cannot directly purge the carrier end face of the DPF unit under the condition of no disassembly, aiming at the defects of the prior art, as shown in fig. 3 to 4, the utility model provides the post-treatment device for the non-road vehicle, which comprises the DOC unit 200 and the DPF unit 300 connected through the hoop 500, the front side of the DOC unit 200 and the rear side of the DPF unit are respectively provided with the air inlet pipe 100 and the air outlet pipe 400, the barrel of the DPF unit 300 and the air outlet pipe barrel are integrally formed, the barrel of the DPF unit 300 is also connected with the end cover 1, the barrels of the end cover 1 and the DPF unit 300 are respectively provided with the arc-shaped openings 2, the two arc-shaped openings 2 are matched to form the pipe connecting port 201 matched with the air outlet pipe 400, the air outlet pipe 400 is inserted into the barrel of the DPF unit from the pipe connecting port 201, the pipe connecting part 101 is provided with the curved surface matched with the air outlet pipe 400.

In the embodiment, still be equipped with welding opening 102 on the pipeline connecting portion 101, outlet duct 400 passes through welding opening 102 and end cover 1 welded connection, outlet duct 400 is provided with the curved surface assorted arc connecting portion 401 with pipeline connecting portion towards one side of pipeline connecting portion 101, the outlet duct sets into uncovered 402 towards one side of DPF unit, adopt single staple bolt structural design, outlet duct structure in the embodiment, after-sale soot blower can directly stretch into, for the pipe network hole pipe structure of giving vent to anger among the prior art, soot blower can not sweep the carrier terminal surface, more convenient after-sale treatment.

Due to the adoption of the design of the integrated molding of the cylinder body of the DPF unit 300 and the cylinder body of the air outlet pipe, the hoop at the air outlet end of the DPF unit 300 can be removed, two DPF units 300 and the cylinder body of the air outlet pipe are omitted as ports in the processing process, the welding process of the air outlet pipe is simpler, the net hole pipe is omitted by the air outlet pipe, and the post-treatment back pressure is reduced.

Referring to fig. 3 to 8, in the embodiment, the DOC unit 200 and the DPF unit 300 are provided with the mounting hoops 3 on the housing, the body of the post-treatment device may be fixed on the mounting base plate 4 by the mounting hoops 3, the mounting hoops 3 may be welded with the mounting base plate 4, in one embodiment, the mounting base plate 4 may be hollowed to form a lightening hole, the overall weight is reduced, it should be noted that the mounting hoops 3 herein are not hoops 500, the specific roles of the two are different, the hoops 500 are used for connecting the DOC unit 200 and the DPF unit 300, and the mounting hoops 3 are additionally provided to play a role of mounting the post-treatment device, and in one embodiment, the use of one hoop 500 is saved.

In addition, for the non-road aftertreatment device, if the aftertreatment device is arranged outside the engine room, the requirements of foreign matter entering prevention, heat insulation protection, rust prevention and the like are also required to be considered, therefore, in one embodiment, the protection shell mounting bracket 5 is arranged on the shells of the DOC unit 200 and the DPF unit 300, avoiding the mounting anchor ear 3, the mounting hole is arranged on the protection shell mounting bracket 5, the aftertreatment protection shell 6 is arranged on the outer side of the aftertreatment device in a matched manner through the bolt and the mounting hole, the protection shell end covers 7 are further arranged at the two ends of the aftertreatment protection shell 6, the protection shell end covers 7 are connected with the aftertreatment protection shell 6 in a matched manner through the bolt and the through holes, and the two ends of the aftertreatment protection shell 6 are all sealed by adopting the protection shell end covers 7, so that foreign matters and rainwater are prevented from entering.

The post-treatment protection shell 6 of the utility model can be assembled by multi-petal arc protection plates, and is convenient to install, in particular in one embodiment, the post-treatment protection shell 6 comprises two-petal arc protection plates 601, connecting holes 602 are correspondingly formed in the edges of the arc protection plates 601, the edges of the adjacent two-petal arc protection plates are overlapped, bolts penetrate through the connecting holes 602 of the adjacent two-petal arc protection plates 601 and mounting holes in the protection shell mounting bracket 5, the arc protection plates 601 are fixed on the outer sides of the post-treatment device, avoiding gaps 603 are formed in the arc protection plates 601 corresponding to the air inlet pipe 100, the air outlet pipe 200, the anchor ear 500 and the mounting anchor ear 3, patch plates 8 are further arranged at the positions of the air inlet pipe 100 and the air outlet pipe 200, the patch plates 8 are fixedly connected with the arc protection plates 601 through bolts, and the design of the whole wrapped protection shell is realized in consideration of rainwater and foreign matter entering, and the protection effect is further improved.

In the embodiment of the utility model, a plurality of fixing brackets 9 are arranged on the post-treatment protection shell 6, a wire harness 10 and a sensor 11 are fixed on the post-treatment protection shell 6 through the fixing brackets 9, and the detection end of the sensor 11 penetrates through the through holes on the post-treatment protection shell and stretches into the sensor mounting seats on the DOC unit 200 and the DPF unit 300.

In the embodiment of the utility model, the first protective cover 12 and the second protective cover 13 are also fixed on the post-treatment protective housing 6, the first protective cover 12 is arranged on the wire harness 10 and the sensor 11 to seal the wire harness 10 and the sensor 11, the second protective cover 13 is arranged on the avoidance notch 603 to seal the avoidance notch 603, the design of the two first protective cover 12 and the second protective cover 13 is adopted, the avoidance notch 603 arranged on the post-treatment protective housing 6 is considered to be used for conveniently arranging the hoop 500 and the mounting hoop 3, but the arrangement of the avoidance notch 60 also can radiate high temperature inside the post-treatment device, the two protective covers are arranged separately in the embodiment, the wire harness 10 and the sensor 11 are protected under the first protective cover 12, the heat damage risk of the wire harness is reduced, meanwhile, the first protective cover 12 and the second protective cover 13 are matched and fixed on the post-treatment protective housing 6 through bolts and mounting holes, and the common bolts are overlapped at the edges of the first protective cover 12 and the second protective cover 13, so that the assembly parts can be reduced.

In addition, the first protection cover 12 is further provided with a detachable side protection plate 14, the side protection plate 14 is provided with a wire harness through hole 15, the wire harness which is required to be connected with the whole wire harness for post treatment is considered, the side protection plate 14 is fixed by adopting a detachable bolt at the plugging end of the first protection cover 12, and the side design is convenient for wiring.

In the embodiment, the post-treatment protection shell 6, the protection shell end cover 7, the first protection cover 12, the second protection cover 13 and the side protection plate 14 of the post-treatment device are all assembled parts, and the parts can be subjected to surface treatment independently, so that the whole paint spraying is not required to be performed in the post-treatment, and the paint spraying transportation processing cost is reduced.

Compared with the prior art, the technical scheme has positive and obvious effect. The technical scheme adopts a single anchor ear and a new air outlet pipe structure, so that the use of raw materials is reduced, the process technology is reduced, and the cost is reduced while the after-sale soot blowing can be ensured; meanwhile, the special requirements of the external non-road post-treatment device on rain prevention and rust prevention are considered, and the structure of the post-treatment protective shell and the protective cover which are newly designed can be applied to external transverse special non-road models.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a aftertreatment device for non-road vehicle, its includes DOC unit and DPF unit that connects through the staple bolt, the front side of DOC unit with the rear side of DPF unit is equipped with intake pipe and outlet duct respectively, its characterized in that: the barrel and the outlet duct barrel integrated into one piece of DPF unit, the barrel of DPF unit still is connected with the end cover, the end cover with be equipped with arc opening on the barrel of DPF unit respectively, two arc opening cooperation form with outlet duct assorted pipeline connector, the outlet duct is followed the pipeline connector inserts in the barrel of DPF unit, be equipped with outside convex pipeline connecting portion on the end cover, pipeline connecting portion have with outlet duct assorted curved surface.

2. A post-processing apparatus for an off-road vehicle according to claim 1, wherein: and the pipeline connecting part is also provided with a welding opening, and the air outlet pipe is in welded connection with the end cover through the welding opening.

3. A post-processing apparatus for an off-road vehicle according to claim 2, wherein: one side of the air outlet pipe, which faces the pipeline connecting part, is provided with an arc-shaped connecting part matched with the curved surface of the pipeline connecting part, and one side of the air outlet pipe, which faces the DPF unit, is provided with an opening.

4. A post-processing apparatus for an off-road vehicle according to claim 1, wherein: the DOC unit and the DPF unit are provided with mounting hoops on the shell, the post-treatment device is fixed on the mounting base plate through the mounting hoops, and the mounting hoops are connected with the mounting base plate in a welding mode.

5. A post-processing apparatus for an off-road vehicle according to claim 4, wherein: the DOC unit with avoid on the casing of DPF unit the installation staple bolt is provided with the protective housing installing support, be provided with the mounting hole on the protective housing installing support, the aftertreatment protective housing pass through the bolt with the outside at aftertreatment device is installed in the mounting hole cooperation, the both ends of aftertreatment protective housing still are provided with the protective housing end cover, the protective housing end cover with be in the same place through bolt and through-hole cooperation connection between the aftertreatment protective housing.

6. A post-processing apparatus for an off-road vehicle according to claim 5, wherein: the post-treatment protective housing includes two lamellas arc backplate at least, the edge of arc backplate corresponds and is provided with the connecting hole, and two adjacent lamellas the edge overlap of arc backplate sets up, and the bolt passes two adjacent lamellas the connecting hole of arc backplate with mounting hole on the protective housing installing support will the arc backplate is fixed post-treatment device's the outside, correspond on the arc backplate intake pipe, outlet duct the staple bolt with the installation staple bolt is provided with dodges the breach, the intake pipe with outlet duct position department still is provided with the patch board, carry out fixed connection through the bolt between patch board and the arc backplate.

7. A post-processing apparatus for an off-road vehicle according to claim 6, wherein: be provided with a plurality of fixed bolsters on the aftertreatment protective housing, pencil and sensor pass through the fixed bolster is fixed on the aftertreatment protective housing, the detection end of sensor passes through the through-hole on the aftertreatment protective housing stretches into in the DOC unit with in the sensor mount pad on the DPF unit.

8. A post-processing apparatus for an off-road vehicle according to claim 7, wherein: the post-treatment protection shell is further fixedly provided with a first protection cover and a second protection cover, the first protection cover is arranged on the wire harness and the sensor to seal the wire harness and the sensor, and the second protection cover is arranged on the avoidance notch to seal the avoidance notch.

9. A post-processing apparatus for an off-road vehicle according to claim 8, wherein: the first protection cover and the second protection cover are fixed on the aftertreatment protection shell through the cooperation of bolt and mounting hole, the first protection cover with the edge overlap of second protection cover sets up sharing bolt and mounting hole.

10. A post-processing apparatus for an off-road vehicle according to claim 8, wherein: the first protective cover is also provided with a detachable side protective plate, and a wire harness passing hole is formed in the side protective plate.