CN220433787U - Post-processing system for excavator and excavator - Google Patents
Post-processing system for excavator and excavator Download PDFInfo
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- CN220433787U CN220433787U CN202320735862.3U CN202320735862U CN220433787U CN 220433787 U CN220433787 U CN 220433787U CN 202320735862 U CN202320735862 U CN 202320735862U CN 220433787 U CN220433787 U CN 220433787U
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- aftertreatment system
- excavator
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- 238000012805 post-processing Methods 0.000 title description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- 239000003054 catalyst Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model belongs to the field of tail gas aftertreatment systems, and discloses an aftertreatment system for an excavator and the excavator, wherein the aftertreatment system comprises an aftertreatment assembly which is sequentially arranged with a diesel engine along a first horizontal linear direction, the aftertreatment assembly comprises a DOC-DPF integrated module which is arranged along a second horizontal linear direction perpendicular to the first horizontal linear direction, and an SCR module which is arranged along a third horizontal linear direction perpendicular to the first horizontal linear direction, and a central axis perpendicular to the central axis passing through the DOC-DPF integrated module and the SCR module is obliquely arranged relative to a horizontal plane. By adopting the aftertreatment system for the excavator in the excavator, the arrangement among the components of the aftertreatment system can be more compact, and the horizontal space required by the installation of the aftertreatment system is reduced.
Description
Technical Field
The utility model relates to the technical field of tail gas aftertreatment systems, in particular to an aftertreatment system for an excavator and the excavator.
Background
In the construction of an engineering machine such as an excavator, a post-treatment system is generally installed to perform an exhaust gas post-treatment operation, and the installation manner in which each component of the existing post-treatment system is disposed inside the excavator is generally horizontally placed in order. However, as the model of the excavator is iterated and upgraded, the spare space inside the model is increasingly reduced, and meanwhile, the space redundancy occupied by parts increased and updated by the iterated product is greatly increased, and accordingly, the space occupied by the post-processing system is also reduced.
Disclosure of Invention
In view of at least one of the above-mentioned drawbacks or shortcomings of the prior art, the present utility model provides an aftertreatment system for an excavator and an excavator, which enable a more compact arrangement of the various components of the aftertreatment system, and reduce the horizontal space required by the aftertreatment system.
To achieve the above object, a first aspect of the present utility model provides an aftertreatment system for an excavator, comprising an aftertreatment assembly for arranging with a diesel engine in sequence along a first horizontal linear direction, the aftertreatment assembly comprising a DOC-DPF integrated module arranged along a second horizontal linear direction perpendicular to the first horizontal linear direction and an SCR module arranged along a third horizontal linear direction perpendicular to the first horizontal linear direction, a vertical axis (OO') passing through a central axis of the DOC-DPF integrated module and a central axis of the SCR module being disposed obliquely with respect to a horizontal plane.
Optionally, one of the DOC-DPF integrated module and the SCR module that is closer to the diesel engine is disposed adjacent to a top of the diesel engine.
Optionally, in the first horizontal linear direction, the DOC-DPF integration module is arranged closer to the diesel engine than the SCR module.
Optionally, the aftertreatment system includes an engine exhaust pipe for connecting an air inlet of the DOC-DPF integrated module with an air outlet of the diesel engine, the engine exhaust pipe including an exhaust pipe upstream section and an exhaust pipe downstream section connected in sequence along an exhaust direction, the exhaust pipe downstream section being arranged substantially along a fourth horizontal linear direction perpendicular to the first horizontal linear direction.
Optionally, the engine exhaust pipe is arranged between the DOC-DPF integrated module, the SCR module and the diesel engine.
Optionally, the aftertreatment system includes the blast pipe fixed knot that is used for fixing blast pipe downstream section constructs, blast pipe fixed knot constructs including external subassembly, gallows subassembly and ring cover subassembly, ring cover subassembly ring cover blast pipe downstream section sets up, the bottom of gallows subassembly with ring cover subassembly is connected and the top with external subassembly is connected.
Optionally, the hanger assembly includes a hanger beam portion and a hanger stringer portion, the bottom end of the hanger stringer portion is connected with the collar assembly and the top end is adjustably connected to the hanger beam portion, and the hanger beam portion is adjustably connected to the external assembly.
Optionally, the hanger rail portion is formed with a hanger handle portion for facilitating manual extraction.
Optionally, the collar assembly is formed as a U-bolt assembly.
A second aspect of the present utility model provides an excavator comprising the above-described aftertreatment system for an excavator.
By adopting the aftertreatment system for the excavator of the embodiment in the excavator, the vertical line of the central axis passing through the central axis of the DOC-DPF integrated module and the central axis of the SCR module is obliquely arranged relative to the horizontal plane, so that the whole position of the aftertreatment assembly is changed from parallel arrangement relative to the horizontal plane to oblique arrangement relative to the horizontal plane, and the spare positions among all parts of the aftertreatment system can be utilized to the greatest extent, and the arrangement among all parts of the aftertreatment system is more compact. Compared with the prior art, the aftertreatment system for the excavator, which is used for the excavator, can reduce the horizontal space occupied by the aftertreatment system when the aftertreatment system is installed inside the excavator, so that the aftertreatment system can be installed in a limited horizontal space smoothly and can be normally used.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a schematic illustration of an aftertreatment system for an excavator in accordance with an embodiment of the present disclosure;
FIG. 2 is a side view of the aftertreatment system for the excavator of FIG. 1;
FIG. 3 is a schematic diagram of an aftertreatment system of the prior art.
Reference numerals illustrate:
1. 2 DOC-DPF integrated module of diesel engine
3 SCR module 4 engine exhaust pipe
5. External connection assembly 6 hanger assembly
7. Loop assembly
41. Upstream exhaust pipe section 42 exhaust pipe downstream section
61. Hanger beam portion 62 hanger rail portion
OO' axis perpendicular
Detailed Description
The following describes the detailed implementation of the embodiments of the present utility model with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the embodiments of the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" or "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the positional relationship of the various components with respect to one another in the vertical, vertical or gravitational directions.
Before explaining the present utility model in detail, a DOC, DPF, SCR, DOC-DPF integrated module mentioned in the present utility model will be explained:
DOC (Diesel Oxidation Catalyst, i.e. diesel oxidation catalyst);
DPF (Diesel Particle Filter), i.e., diesel particulate filter;
SCR (Selective Catalytic Reduction, i.e., selective catalytic reducer);
the DOC-DPF integrated module is one integrated module formed of a DOC (Diesel Oxidation Catalyst, i.e., diesel oxidation catalyst) module and a DPF (Diesel Particle Filter, i.e., diesel particulate filter) module.
The utility model will be described in detail below with reference to the drawings in connection with exemplary embodiments.
Referring to fig. 1 and 2, a first exemplary embodiment of the present utility model provides an aftertreatment system for an excavator. Specifically, the aftertreatment system comprises an aftertreatment assembly for arranging in sequence with the diesel engine 1 along a first horizontal linear direction. The aftertreatment device assembly comprises a DOC-DPF integrated module 2 and an SCR module 3, wherein the DOC-DPF integrated module 2 is arranged along a second horizontal linear direction perpendicular to the first horizontal linear direction, the SCR module 3 is arranged along a third horizontal linear direction perpendicular to the first horizontal linear direction, and a central axis perpendicular OO' passing through the central axis of the DOC-DPF integrated module 2 and the central axis of the SCR module 3 is obliquely arranged relative to a horizontal plane.
In the prior art, a specific embodiment of the aftertreatment system may be configured as shown in fig. 3, specifically, the DOC-DPF integrated module 2 and the SCR module 3 are arranged horizontally, i.e. the position of the aftertreatment assembly as a whole is arranged parallel to the horizontal plane, and in the horizontal direction the DOC-DPF integrated module 2, the SCR module 3 and the diesel engine 1 are arranged in sequence.
By adopting the aftertreatment system for the excavator of the embodiment, when the position of the aftertreatment system is arranged inside the excavator, as shown in fig. 2, the central axis line OO' passing through the central axis line of the DOC-DPF integrated module 2 and the central axis line of the SCR module 3 is obliquely arranged relative to the horizontal plane, that is, the position of the whole aftertreatment assembly is obliquely arranged relative to the horizontal plane, compared with the prior art, the position of the whole aftertreatment assembly is changed from being parallel to the horizontal plane to being obliquely arranged relative to the horizontal plane, and the free space among all parts of the aftertreatment system is utilized to the greatest extent, so that the arrangement among all parts of the aftertreatment system is more compact. By the arrangement, the horizontal space required by the installation of the post-processor assembly can be reduced while the normal installation of the post-processor assembly is ensured, so that the arrangement of the post-processing system can be completed in a limited horizontal space, and the required horizontal space is reduced compared with the arrangement mode in the prior art.
In one embodiment, one of the DOC-DPF integrated module 2 and the SCR module 3 that is closer to the diesel engine 1 is arranged adjacent to the top of the diesel engine 1. In particular, in order to reduce as much as possible the horizontal space occupied when the DOC-DPF integrated module 2 and the SCR module 3 are arranged in the excavator when the position of the aftertreatment assembly is arranged, one of the DOC-DPF integrated module 2 and the SCR module 3 that is closer to the diesel engine 1 is arranged adjacent to the top of the diesel engine 1. In this way, the arrangement of the DOC-DPF integrated module 2, the SCR module 3 and the diesel engine 1 can be made more compact, and accordingly, the horizontal space required for the aftertreatment system can be saved.
In one embodiment, the DOC-DPF integrated module 2 is arranged closer to the diesel engine 1 than the SCR module 3 in a first horizontal linear direction. In the tail gas aftertreatment process, the exhaust gas discharged by the diesel engine 1 enters the DOC-DPF integrated module 2 and then enters the SCR module 3, the DOC-DPF integrated module 2 is arranged at a position closer to the diesel engine 1, the horizontal length of an exhaust pipe connecting the DOC-DPF integrated module 2 and the diesel engine 1 can be shortened, and the horizontal space occupied by the exhaust pipe is further reduced, so that the arrangement of an aftertreatment system is more compact, and the occupied horizontal space is reduced to a certain extent.
In one embodiment, the aftertreatment system comprises an engine exhaust pipe 4 for connecting an air inlet of the DOC-DPF integrated module 2 with an air outlet of the diesel engine 1, the engine exhaust pipe 4 comprising an exhaust pipe upstream section 41 and an exhaust pipe downstream section 42 connected in sequence in an exhaust direction, the exhaust pipe downstream section 42 being arranged substantially in a fourth horizontal linear direction perpendicular to the first horizontal linear direction.
Wherein the exhaust pipe upstream section 41 is connected with an exhaust port of the diesel engine 1 and the exhaust pipe downstream section 42, and the exhaust pipe downstream section 42 is connected with the exhaust pipe upstream section 41 and an air inlet of the DOC-DPF integrated module 2. The engine exhaust pipe 4 is split into two sections, so that the horizontal space occupied by the engine exhaust pipe 4 can be reduced, and the exhaust pipe downstream section 42 can be inserted into the empty space formed between the DOC-DPF integrated module 2 and the SCR module 3, so that the normal use of the engine exhaust pipe 4 is not influenced, the horizontal space occupied by the engine exhaust pipe 4 can be reduced, the space utilization rate can be improved, and the arrangement among the engine exhaust pipe 4, the DOC-DPF integrated module 2 and the SCR module 3 is more compact.
In one embodiment, an engine exhaust pipe 4 is arranged between the DOC-DPF integrated module 2, the SCR module 3 and the diesel engine 1. A free space is formed among the DOC-DPF integrated module 2, the SCR module 3 and the diesel engine 1, and the engine exhaust pipe 4 is arranged at the formed free space, so that the utilization rate of the horizontal space can be improved, the DOC-DPF integrated module 2, the SCR module 3 and the diesel engine 1 are more compact, and the horizontal space required to be occupied is reduced to a certain extent.
In one embodiment, an aftertreatment system includes an exhaust conduit securing structure. The exhaust pipe downstream section 42 is provided as a hard pipe, and in order to enable a better fixed mounting of the exhaust pipe downstream section 42, an exhaust pipe fixing structure is provided for fixing the exhaust pipe downstream section 42. Wherein, blast pipe fixed knot constructs including external subassembly 5, gallows subassembly 6 and ring cover subassembly 7, and ring cover subassembly 7 ring cover blast pipe downstream section 42 sets up, and the bottom of gallows subassembly 6 is connected with ring cover subassembly 7, and the top of gallows subassembly 6 is connected with external subassembly 5.
Specifically, when the exhaust pipe downstream section 42 needs to be fixed, the exhaust pipe downstream section 42 is sleeved by the annular sleeve assembly 7, then the bottom of the hanger assembly 6 is fixedly connected with the annular sleeve assembly 7 sleeved with the exhaust pipe downstream section 42, and the top of the hanger assembly 6 is further connected with the external assembly 5, so that the exhaust pipe downstream section 42 can be fixed on an excavator frame, and the exhaust pipe downstream section 42 can be prevented from vibrating along with the vibration when the diesel engine 1 vibrates to a certain extent.
In one embodiment, hanger assembly 6 includes a hanger beam portion 61 and a hanger rail portion 62, the bottom end of hanger rail portion 62 is connected to collar assembly 7, and the top end of hanger rail portion 62 is adjustably connected to hanger beam portion 61, and hanger beam portion 61 is adjustably connected to circumscribing assembly 5.
Specifically, during the process of installing the downstream section 42 of the exhaust pipe, the downstream section 42 of the exhaust pipe is fixed through the collar assembly 7 and the hanger beam part 62, the position of the downstream section 42 of the exhaust pipe is adjusted by adjusting the connection position of the top end of the hanger beam part 62 and the hanger beam part 61, after the downstream section 42 of the exhaust pipe is adjusted to a proper position, the hanger beam part 62 is connected with the hanger beam part 61, and then the hanger beam part 61 is connected with the external assembly 5, so that the fixed installation of the downstream section 42 of the exhaust pipe is completed. Further, the connection position between the hanger beam portion 61 and the external connection assembly 5 can be adaptively adjusted according to practical situations, so as to ensure that the gas can be normally conveyed to the post-processor through the exhaust pipe downstream section 42 after the fixed installation of the exhaust pipe downstream section 42 is completed.
The connection position between the top end of the hanger beam part 62 and the hanger beam part 61 and the connection position between the hanger beam part 61 and the external connection assembly 5 are set to be adjustable, and when the exhaust pipe downstream section 42 is installed, the adjustment of the hanger beam part 62 and the hanger beam part 61 can enable the installation of the exhaust pipe downstream section 42 to be smoothly completed and increase the redundancy of manufacturing errors, and in addition, under the normal use condition of the exhaust pipe downstream section 42, the horizontal space occupied by the exhaust pipe downstream section 42 can be reduced as much as possible, so that the arrangement of each component of the aftertreatment system is more compact.
Further, the hanger rail portion 62 is formed with a hanger handle portion that facilitates manual extraction. In this way, the hanger beam part 62 can be used as a handle to facilitate the operator to extract the exhaust pipe when the downstream section 42 of the exhaust pipe needs to be disassembled in the later maintenance stage, in addition to the collar assembly 7 and the hanger beam part 61.
In one embodiment, the collar assembly 7 is formed as a U-bolt assembly. The U-bolt assembly comprises a U-bolt and a nut, wherein the U-bolt is sleeved on the downstream section 42 of the exhaust pipe, and the U-bolt is fixed by the nut, so that the downstream section 42 of the exhaust pipe can be fixed by the U-bolt assembly in a sleeved mode, and the U-bolt assembly is connected with the hanger assembly 6 to fix the downstream section 42 of the exhaust pipe.
A second exemplary embodiment of the present utility model provides an excavator that includes the above-described aftertreatment system for an excavator. By adopting the post-treatment system for the excavator in the excavator, the horizontal space occupied by the post-treatment system installed in the excavator can be reduced, so that the post-treatment system in the excavator can be smoothly arranged and can normally operate under the condition that the spare space in the excavator is reduced along with iteration and upgrading of the excavator model.
The foregoing details of the optional implementation of the embodiment of the present utility model have been described in detail with reference to the accompanying drawings, but the embodiment of the present utility model is not limited to the specific details of the foregoing implementation, and various simple modifications may be made to the technical solution of the embodiment of the present utility model within the scope of the technical concept of the embodiment of the present utility model, and these simple modifications all fall within the protection scope of the embodiment of the present utility model.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
In addition, any combination of various embodiments of the present utility model may be performed, so long as the concept of the embodiments of the present utility model is not violated, and the disclosure of the embodiments of the present utility model should also be considered.
Claims (10)
1. An aftertreatment system for an excavator, characterized in that the aftertreatment system comprises an aftertreatment assembly for arranging with a diesel engine (1) in sequence along a first horizontal linear direction, the aftertreatment assembly comprising a DOC-DPF integrated module (2) arranged along a second horizontal linear direction perpendicular to the first horizontal linear direction and an SCR module (3) arranged along a third horizontal linear direction perpendicular to the first horizontal linear direction, a vertical axis (OO') passing through the central axis of the DOC-DPF integrated module (2) and the central axis of the SCR module (3) being arranged obliquely with respect to the horizontal plane.
2. The aftertreatment system for an excavator according to claim 1, characterized in that one of the DOC-DPF integrated module (2) and the SCR module (3) which is closer to the diesel engine (1) is arranged adjacent to the top of the diesel engine (1).
3. Aftertreatment system for an excavator according to claim 1, characterized in that in the first horizontal linear direction the DOC-DPF integrated module (2) is arranged closer to the diesel engine (1) than the SCR module (3).
4. The aftertreatment system for an excavator according to claim 1, characterized in that the aftertreatment system comprises an engine exhaust pipe (4) for connecting an inlet of the DOC-DPF integrated module (2) with an outlet of the diesel engine (1), the engine exhaust pipe (4) comprising an exhaust pipe upstream section (41) and an exhaust pipe downstream section (42) connected in sequence in an exhaust direction, the exhaust pipe downstream section (42) being arranged substantially in a fourth horizontal linear direction perpendicular to the first horizontal linear direction.
5. Aftertreatment system for an excavator according to claim 4, characterized in that the engine exhaust pipe (4) is arranged between the DOC-DPF integrated module (2), the SCR module (3) and the diesel engine (1).
6. The aftertreatment system for an excavator of claim 4, comprising an exhaust pipe securing structure for securing the exhaust pipe downstream section (42), the exhaust pipe securing structure comprising an circumscribing assembly (5), a hanger assembly (6) and a collar assembly (7), the collar assembly (7) being arranged to collar the exhaust pipe downstream section (42), a bottom of the hanger assembly (6) being connected with the collar assembly (7) and a top being connected with the circumscribing assembly (5).
7. The aftertreatment system for an excavator according to claim 6, wherein the hanger assembly (6) comprises a hanger beam portion (61) and a hanger rail portion (62), the hanger rail portion (62) being connected at its bottom end to the collar assembly (7) and at its top end to the hanger beam portion (61) adjustably, the hanger beam portion (61) being adjustably connected to the circumscribing assembly (5).
8. The aftertreatment system for an excavator according to claim 7, wherein the hanger rail portion (62) is formed with a hanger handle portion for facilitating manual extraction.
9. Aftertreatment system for an excavator according to claim 6, characterized in that the collar assembly (7) is formed as a U-bolt assembly.
10. An excavator, characterized in that it comprises a post-treatment system for an excavator according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320735862.3U CN220433787U (en) | 2023-04-03 | 2023-04-03 | Post-processing system for excavator and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320735862.3U CN220433787U (en) | 2023-04-03 | 2023-04-03 | Post-processing system for excavator and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220433787U true CN220433787U (en) | 2024-02-02 |
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ID=89694062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320735862.3U Active CN220433787U (en) | 2023-04-03 | 2023-04-03 | Post-processing system for excavator and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220433787U (en) |
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2023
- 2023-04-03 CN CN202320735862.3U patent/CN220433787U/en active Active
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