Heat insulation device, engine exhaust system and loader

Abstract

The utility model belongs to the technical field of loaders, and discloses a heat insulation device, an engine exhaust system and a loader.The heat insulation device comprises a support and a heat insulation plate, the support comprises two side protection plates arranged at intervals and a plurality of supporting plates located between the two side protection plates, and the two ends of each supporting plate are fixedly connected with the side protection plates at the corresponding ends respectively; an included angle is formed between every two adjacent supporting plates, each supporting plate is provided with a heat dissipation opening, the side protection plates and the supporting plates jointly form a covering space, the heat insulation plates and the supporting plates are arranged in a one-to-one correspondence mode, the heat insulation plates are detachably connected to the corresponding supporting plates and cover the heat dissipation openings, and heat dissipation parts corresponding to the heat dissipation openings are arranged on the heat insulation plates; the engine exhaust system comprises the heat insulation device and further comprises a postprocessor arranged in the covering space. The loader comprises the engine exhaust system. The heat insulation device provided by the utility model is simple in structure, can carry out reliable and effective heat insulation on the postprocessor, and effectively improves the heat insulation effect.

Description

Technical Field

[0001] This utility model relates to the field of loader technology, and in particular to a heat insulation device, an engine exhaust system, and a loader. Background Technology

[0002] The engine exhaust system inside the loader ensures optimal engine performance while safely removing all exhaust gases from the engine and smoothly releasing them into the environment. Approximately 30% to 40% of the heat generated by the engine is transferred to the atmosphere through the exhaust system. Components such as the after-treatment unit in the exhaust system are continuously heated by the exhaust gases, with the surface temperature of the after-treatment unit reaching approximately 200°C to 600°C. To prevent these components from potentially coming into contact with personnel or other parts, heat insulation treatment is often required for the after-treatment unit.

[0003] In existing technologies, heat insulation for post-processors is generally achieved by arranging independent heat insulation plates around the periphery of the post-processor cylinder, with the plates fixedly mounted to the post-processor's support. This setup provides some insulation and is inexpensive, but its heat protection is still relatively poor. Waste heat can still seep through the gaps in the heat insulation plates, potentially causing overheating damage to surrounding components. Reducing the gaps would require extending the length of the heat insulation plates, but excessively long plates would occupy too much internal space, hindering the installation of internal pipelines. Utility Model Content

[0004] The purpose of this utility model is to provide a heat insulation device with a simple structure that can reliably and effectively insulate the post-processor and improve the heat insulation effect.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A heat insulation device, comprising:

[0007] The bracket includes two spaced-apart side guards and a plurality of support plates located between the two side guards. The two ends of the support plates are fixedly connected to the corresponding side guards. The two adjacent support plates are arranged at an angle. Each support plate is provided with a heat dissipation vent. The side guards and the support plates together form a covering space.

[0008] Multiple heat insulation boards are provided, and each heat insulation board is correspondingly provided with a support plate. Each heat insulation board is detachably connected to the corresponding support plate and covers the heat dissipation vent. Each heat insulation board is provided with a heat dissipation part corresponding to the heat dissipation vent.

[0009] Preferably, a fixing member is also included, through which the heat insulation plate and the support plate are detachably connected.

[0010] Preferably, the fastener includes a bolt assembly, which includes a bolt and a nut. The support plate has a first mounting hole, and the heat insulation plate has a corresponding second mounting hole. The bolt passes through the first mounting hole and the second mounting hole and is threadedly connected to the nut.

[0011] Preferably, the number of bolt assemblies, the number of first mounting holes on each support plate, and the number of second mounting holes on each heat insulation plate are provided in a corresponding manner.

[0012] Preferably, the heat dissipation part includes a plurality of spaced-apart heat dissipation holes, and / or the heat dissipation part includes a plurality of spaced-apart heat dissipation grooves, and / or the heat dissipation part includes a plurality of spaced-apart heat dissipation fins.

[0013] Preferably, the outer contour of the heat insulation plate coincides with the outer contour of the corresponding support plate.

[0014] Preferably, the plurality of support plates are integrally bent and formed.

[0015] Preferably, the support plate is welded to the side guard plate.

[0016] This utility model also provides an engine exhaust system that uses the aforementioned heat insulation device to effectively insulate and directionally dissipate heat from the aftertreatment unit, ensuring the overall reliable and stable operation of the exhaust system.

[0017] An engine exhaust system includes the heat insulation device described in any of the above claims, and further includes an aftertreatment unit, wherein the bracket is fixedly connected to the aftertreatment unit, and the aftertreatment unit is located within the enclosure space.

[0018] This utility model also provides a loader that uses the above-mentioned engine exhaust system, which has a reliable and stable heat insulation effect, further ensuring the overall reliable and stable operation of the loader.

[0019] A loader includes the aforementioned engine exhaust system and a chassis, wherein the after-processor is fixedly mounted on the chassis.

[0020] Beneficial effects:

[0021] The heat insulation device provided by this utility model consists of two parts: a support frame and a heat insulation plate. The support frame provides reliable and effective support for the heat insulation plate and is composed of side guard plates and support plates. Two side guard plates are spaced apart, and multiple support plates are connected between the two side guard plates. Adjacent support plates are arranged at an angle, so that the two side guard plates and multiple support plates together form a covering space. In use, the heat insulation device is completely covered on the post-processor, that is, the post-processor is located within the covered space. The heat insulation device can provide both heat insulation and protection for the post-processor. On the one hand, the covered space can isolate the heat of the internal post-processor, preventing heat from dissipating randomly; on the other hand, the support frame and the isolation plates together form a protective structure for the outside of the post-processor, preventing damage to the post-processor. The heat insulation plate is detachable from the support plate. It can be installed in areas with high waste heat impact or removed in areas with low waste heat impact, depending on the heat generation of the post-processor and its impact on surrounding components. The number of heat insulation plates can be flexibly changed according to the heat insulation requirements, making it highly applicable. In addition, to ensure that heat is dissipated in an orderly manner within the enclosure space, the support plate is provided with heat dissipation vents, and the heat insulation plate is provided with heat dissipation parts corresponding to the heat dissipation vents. The heat dissipation vents and heat dissipation parts define the heat dissipation areas of the enclosure space, ensuring directional heat dissipation. This allows the devices around the post-processor to be positioned away from the heat dissipation areas, thereby reducing the adverse effects of waste heat on surrounding devices while meeting heat dissipation requirements.

[0022] The engine exhaust system provided by this utility model includes the aforementioned heat insulation device and an after-processor. A bracket is fixedly connected to the after-processor, and the after-processor is located within the enclosure space. By applying the aforementioned heat insulation device, this engine exhaust system can effectively insulate and directionally dissipate heat, reducing the probability of waste heat damaging surrounding components and ensuring the overall reliable and stable operation of the exhaust system.

[0023] The loader provided by this utility model uses the above-mentioned engine exhaust system, which has a reliable and stable heat insulation effect, further ensuring the overall reliable and stable operation of the loader. Attached Figure Description

[0024] Figure 1 This is an exploded schematic diagram of the heat insulation device and post-processor provided by this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of the heat insulation device provided by this utility model;

[0026] Figure 3 This is an exploded schematic diagram of the heat insulation device provided by this utility model.

[0027] In the picture:

[0028] 1. Bracket; 11. Side panel; 12. Support plate; 121. Heat dissipation vent; 122. First mounting hole;

[0029] 2. Heat insulation board; 21. Second mounting hole; 22. Heat dissipation hole;

[0030] 3. Fasteners; 31. Bolts; 32. Nuts;

[0031] 4. Post-processor. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] This embodiment provides a heat insulation device. (Refer to...) Figures 1 to 3As shown, the heat insulation device includes a bracket 1 and heat insulation plates 2. The bracket 1 includes two spaced-apart side guards 11 and multiple support plates 12 located between the two side guards 11. The two ends of the support plates 12 are fixedly connected to the corresponding side guards 11. Adjacent support plates 12 are arranged at an angle. Each support plate 12 has a heat dissipation vent 121. The side guards 11 and the support plates 12 together form a covering space. Multiple heat insulation plates 2 are provided, and the multiple heat insulation plates 2 are arranged one-to-one with the multiple support plates 12. The heat insulation plates 2 are detachably connected to the corresponding support plates 12 and cover the heat dissipation vents 121. The heat insulation plates 2 are provided with heat dissipation parts corresponding to the heat dissipation vents 121.

[0037] In this embodiment, the heat insulation device consists of two parts: a support 1 and a heat insulation plate 2. The support 1 provides reliable and effective support for the heat insulation plate 2. The support 1 is composed of side guard plates 11 and support plates 12. Two side guard plates 11 are spaced apart, and multiple support plates 12 are connected between two side guard plates 11. Adjacent support plates 12 are arranged at an angle, so that the two side guard plates 11 and multiple support plates 12 together form a covering space. In use, the heat insulation device is completely covered on the post-processor 4, that is, the post-processor 4 is located within the covering space. The heat insulation device can play a dual role of heat insulation and protection for the post-processor 4. On the one hand, the setting of the covering space can isolate the heat of the internal post-processor 4 and prevent the heat from dissipating randomly; on the other hand, the support 1 and the isolation plate together form a protective structure for the outside of the post-processor 4, preventing damage to the post-processor 4. The heat insulation plate 2 is detachable from the support plate 12. It can be installed in areas with high waste heat impact or removed in areas with low waste heat impact, depending on the heat generation of the post-processor 4 and its impact on surrounding components. The number of heat insulation plates 2 can be flexibly adjusted to meet insulation requirements, making it highly adaptable. Furthermore, to ensure orderly heat dissipation within the enclosure space, the support plate 12 has heat dissipation vents 121, and the heat insulation plate 2 has heat dissipation parts corresponding to these vents. The vents 121 and heat dissipation parts define the heat dissipation areas within the enclosure space, ensuring directional heat dissipation. This allows components around the post-processor 4 to be strategically positioned away from the heat dissipation areas, meeting heat dissipation requirements while reducing the adverse effects of waste heat on surrounding components.

[0038] In this embodiment, the heat insulation device also includes a fixing member 3, and the heat insulation plate 2 and the support plate 12 are detachably connected through the fixing member 3. The detachable connection between the heat insulation plate 2 and the support plate 12 allows for flexible adjustment of the number of heat insulation plates 2 to meet heat insulation requirements, and also facilitates the periodic disassembly of the heat insulation plates 2 for inspection and replacement.

[0039] Specifically, in this embodiment, the fastener 3 includes a bolt 31 assembly, which comprises a bolt 31 and a nut 32. The support plate 12 has a first mounting hole 122, and the heat insulation plate 2 has a corresponding second mounting hole 21. The bolt 31 passes through the first mounting hole 122 and the second mounting hole 21 and is threadedly connected to the nut 32. Specifically, the bolt 31 assembly is a standardized component for easy configuration. Bolts 31 and nuts 32 of corresponding sizes are selected, and corresponding first mounting holes 122 and second mounting holes 21 are respectively provided on the support plate 12 and the heat insulation plate 2. During assembly, the bolt 31 passes through the first mounting hole 122 and the second mounting hole 21 and is screwed into the nut 32 to achieve reliable fastening.

[0040] Optionally, the bolts 31 and nuts 32 may be coated with a high-temperature resistant and corrosion-resistant layer to prevent corrosion from waste heat and high-temperature environments.

[0041] Optionally, the number of bolt 31 assemblies, the number of first mounting holes 122 on each support plate 12, and the number of second mounting holes 21 on each heat insulation plate 2 are each provided in multiples, thus further ensuring a reliable and stable connection between the heat insulation plate 2 and the support plate 12. In this embodiment, the number of bolt 31 assemblies, the number of first mounting holes 122 on each support plate 12, and the number of second mounting holes 21 on each heat insulation plate 2 are each provided in fours.

[0042] In some other alternative embodiments, the fastener 3 is set as a screw (not shown), in which case the first mounting hole 122 is correspondingly set as a screw hole, and the screw passes through the second mounting hole 21 and is threadedly connected to the first mounting hole 122 to realize the fixed connection between the heat insulation plate 2 and the support plate 12.

[0043] In some other alternative embodiments, one of the heat insulation plate 2 and the support plate 12 is provided with a snap-fit ​​connector, and the other is provided with a corresponding snap-fit ​​groove. The snap-fit ​​action between the snap-fit ​​connector and the snap-fit ​​groove can also achieve a fixed connection between the heat insulation plate 2 and the support plate 12.

[0044] In this embodiment, the heat dissipation unit includes a plurality of spaced-apart heat dissipation holes 22. Specifically, the heat dissipation holes 22 are connected to the heat dissipation opening 121, and the waste heat in the enclosure space is discharged to the outside through the heat dissipation opening 121 and the heat dissipation holes 22 in sequence. It is worth mentioning that the devices around the post-processor 4 can be strategically moved away from the heat dissipation holes 22, so as to reduce the adverse effects of waste heat on the surrounding devices while meeting the heat dissipation requirements.

[0045] In some alternative embodiments, the heat dissipation section includes a plurality of spaced-apart heat dissipation grooves. Specifically, the arrangement of the heat dissipation grooves can increase the surface area of ​​the heat insulation plate 2 in contact with the external environment, and to a certain extent, it can also enhance the heat dissipation effect.

[0046] In some other alternative embodiments, the heat dissipation section includes a plurality of spaced-apart heat dissipation fins. Specifically, the heat insulation plate 2 has a plurality of insertion holes communicating with the heat dissipation port 121, and the heat dissipation fins are inserted into the insertion holes. Waste heat in the covered space is discharged to the outside through the heat dissipation port 121 and the heat dissipation fins in sequence.

[0047] In this embodiment, the outer contour of the heat insulation plate 2 coincides with the outer contour of the corresponding support plate 12. With this arrangement, during assembly, the heat insulation plate 2 and the corresponding support plate 12 can be quickly positioned together by fitting their outer contours together, which facilitates assembly.

[0048] In this embodiment, multiple support plates 12 are integrally bent and formed. The structure is simple, the operation is convenient, and the efficiency of positioning and installation is improved.

[0049] In this embodiment, the support plate 12 and the side guard plate 11 are welded together. There is no need for relative movement between the support plate 12 and the side guard plate 11. The welding achieves reliable and stable fixation between the two, ensuring the overall strength of the bracket 1 is reliable and able to provide reliable and stable support for the heat insulation plate 2.

[0050] This embodiment also provides an engine exhaust system, which includes the aforementioned heat insulation device and an after-processor 4. The bracket 1 is fixedly connected to the after-processor 4, and the after-processor 4 is located within the enclosure space. By applying the aforementioned heat insulation device, the engine exhaust system can effectively insulate and directionally dissipate heat, reducing the probability of waste heat damaging surrounding components and ensuring the overall reliable and stable operation of the exhaust system.

[0051] This embodiment also provides a loader, which includes the aforementioned engine exhaust system and a chassis, with the after-processor 4 fixedly mounted on the chassis. The loader, utilizing the aforementioned engine exhaust system, provides reliable and stable heat insulation, further ensuring the overall reliable and stable operation of the loader and reducing the possibility of overheating damage to internal components.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A thermal insulation device, characterized in that The application relates to a heat insulation device. The heat insulation device comprises a support (1) and a plurality of heat insulation plates (2). The support (1) comprises two side guards (11) and a plurality of struts (12) arranged between the two side guards (11).

2. The insulating device of claim 1, wherein The two ends of the struts (12) are fixedly connected with the side guards (11) at the corresponding ends.

3. The insulating device of claim 2, wherein, The struts (12) are arranged at an included angle between two adjacent struts (12).

4. The insulating device of claim 3, wherein Each of the struts (12) is provided with a heat dissipation opening (121).

5. The insulating device of claim 1, wherein The side guards (11) and the struts (12) jointly form a covering space.

6. The insulating device of claim 1, wherein The heat insulation plates (2) are arranged in one-to-one correspondence with the struts (12).

7. The insulating device of claim 1, wherein The heat insulation plates (2) are detachably connected to the corresponding struts (12) and cover the heat dissipation openings (121).

8. The insulating device of claim 1, wherein, The heat insulation plates (2) are provided with heat dissipation portions corresponding to the heat dissipation openings (121).

9. An engine exhaust system characterized by, The heat insulation device further comprises a fixing member (3).

10. A loader characterized by The fixing member (3) comprises a bolt assembly. The bolt assembly comprises a bolt (31) and a nut (32). The struts (12) are provided with first mounting holes (122). The heat insulation plates (2) are provided with second mounting holes (21) corresponding to the first mounting holes (122). The bolt (31) is threadedly connected with the nut (32) through the first mounting holes (122) and the second mounting holes (21). The number of the bolt assemblies, the number of the first mounting holes (122) on each of the struts (12) and the number of the second mounting holes (21) on each of the heat insulation plates (2) are arranged in one-to-one correspondence. The heat dissipation portions comprise a plurality of heat dissipation holes (22) arranged at intervals. The heat dissipation portions comprise a plurality of heat dissipation grooves arranged at intervals. The heat dissipation portions comprise a plurality of heat dissipation fins arranged at intervals. The outer contour of the heat insulation plates (2) is arranged in coincidence with the outer contour of the corresponding struts (12). The plurality of struts (12) are integrally bent and formed. The struts (12) are welded with the side guards (11). The heat insulation device of any one of claims 1-8 further comprises a post-processor (4). The post-processor (4) is fixedly connected with the support (1) and located in the covering space. The engine exhaust system of claim 9 further comprises a chassis. The post-processor (4) is fixedly arranged on the chassis.

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