Supporting structure of tail gas treatment device

Abstract

The utility model relates to the technical field of tractor accessory processing, and discloses a support structure of a tail gas treatment device, which comprises an exhaust main pipe and an exhaust auxiliary pipe, a first positioning shell and a second positioning shell are respectively arranged outside the exhaust main pipe and the exhaust auxiliary pipe, and the lower parts of the exhaust main pipe and the exhaust auxiliary pipe are connected by a first positioning mounting plate; a reinforcing frame is arranged on the two plates, a first connecting seat and a second connecting seat are arranged on the outer wall of the second positioning mounting plate, and the width of the end, away from the second positioning mounting plate, of the first positioning mounting plate is larger. The two shells are connected through the first positioning mounting plate, so that the positioning structural integrity of the main exhaust pipe and the auxiliary exhaust pipe is enhanced, and stress dispersion is facilitated; the reinforcing frame improves structural strength and rigidity, stability under complex working conditions is guaranteed, stress distribution is optimized through the special width design of the first positioning mounting plate, stress concentration is avoided, a connecting base on the second positioning mounting plate can be conveniently connected with a gearbox, an engine and other components, and it is guaranteed that the tail gas treatment device is stably mounted and operated.

Description

Technical Field

[0001] This utility model relates to the field of tractor parts processing technology, specifically to a support structure for an exhaust gas treatment device. Background Technology

[0002] In the field of exhaust gas treatment, the performance of the support structure is crucial to the operational stability and service life of the exhaust gas treatment device. Traditional exhaust gas treatment device support structures mostly use simple brackets or frames for support and fixation, which has many shortcomings.

[0003] Existing support structures, due to their simplistic connection methods and unreasonable stress distribution, are prone to loosening or even damage during exhaust gas treatment device operation under external forces such as engine vibration and exhaust impact. This leads to support structure failure, shortens the service life of the exhaust gas treatment device, and some support structures lack proper reinforcement design, making it difficult to withstand prolonged complex external forces, resulting in poor overall stability and an inability to provide continuous and stable support for the exhaust gas treatment device, thus affecting its normal operation. These problems not only increase equipment maintenance costs but may also lead to non-compliance with exhaust emission standards due to exhaust gas treatment device malfunctions, posing environmental risks. Therefore, there is an urgent need for a long-life, stress-stable support structure for exhaust gas treatment devices to solve the aforementioned problems in existing technologies. Utility Model Content

[0004] The purpose of this invention is to provide a support structure for an exhaust gas treatment device that is structurally stable and has a long service life, in order to address the above problems.

[0005] To achieve the above objectives, this utility model discloses a support structure for an exhaust gas treatment device, including an exhaust main pipe and an exhaust secondary pipe connected at their ends. The exhaust main pipe is provided with a first positioning housing, and the exhaust secondary pipe is provided with a second positioning housing. The structural feature is that a first positioning mounting plate connecting the first and second positioning housings is provided at their lower parts. A second positioning mounting plate is vertically fixed to the end of the positioning mounting plate away from the first positioning housing. A reinforcing frame is connected to the first and second positioning mounting plates. A first connecting seat and a second connecting seat are provided on the outer wall of the second positioning mounting plate. The width of the end of the first positioning mounting plate away from the second positioning mounting plate is greater than the width of the end connecting the first and second positioning mounting plates.

[0006] With the above structure, the first positioning housing and the second positioning housing are connected by the first positioning mounting plate, enhancing the overall integrity of the external positioning structure of the exhaust main pipe and exhaust auxiliary pipe. This allows the support structure to better distribute the stress. The reinforcing frame, located on the first and second positioning mounting plates, further improves the strength and rigidity of the entire support structure, enabling it to withstand greater external impacts, ensuring stability under complex working conditions, and extending its service life. Specifically, the width of the end of the first positioning mounting plate furthest from the second positioning mounting plate is greater than the width of the connecting end. This design optimizes stress distribution, making the stress on the support structure more balanced in different directions, avoiding stress concentration, and improving the reliability and durability of the structure. The first and second connecting seats on the second positioning mounting plate facilitate the connection of the support structure to other components (such as the gearbox and engine), allowing the exhaust gas treatment device to be securely installed on the equipment and ensuring its normal operation.

[0007] Preferably, the end pipes of the main exhaust pipe and the auxiliary exhaust pipe are vertically connected to form an L-shaped pipe structure. The first positioning housing is arranged along the length of the main exhaust pipe, and its lower housing covers the connection between the main exhaust pipe and the auxiliary exhaust pipe. The second positioning housing is arranged along the length of the auxiliary exhaust pipe, and its lower end is on the same horizontal plane as the lower end of the first positioning housing. The L-shaped pipe structure formed by the main exhaust pipe and the auxiliary exhaust pipe better meets the actual installation space requirements, effectively utilizing limited space and making the overall layout of the exhaust gas treatment device more compact and reasonable. The lower part of the first positioning housing covering the connection between the main exhaust pipe and the auxiliary exhaust pipe protects the connection point, reducing the risk of impact or damage and improving the stability and service life of the connection.

[0008] Preferably, the end of the first positioning mounting plate furthest from the second positioning mounting plate has an arc-shaped structure, and the first positioning housing has a cylindrical structure with the curvature of its lower edge matching the curvature of the outer edge of the first positioning mounting plate. This matching of the arc-shaped outer end of the first positioning mounting plate with the curvature of the lower edge of the first positioning housing increases the contact area between them, making the connection between the first positioning mounting plate and the first positioning housing tighter and more stable. This allows for better transmission and distribution of stress, improving the overall stability of the support structure. Furthermore, the arc-shaped design avoids stress concentration issues caused by right-angle connections, resulting in a more even distribution of stress across the entire structure, reducing the risk of structural damage due to stress concentration, and extending the service life of the support structure.

[0009] Preferably, the first positioning mounting plate and the second positioning mounting plate are L-shaped plate structures formed by integrally bending strip plates. The lower end of the second positioning mounting plate is bent outwards in the opposite direction to the extension of the first positioning mounting plate. By integrally bending the first and second positioning mounting plates into an L-shaped plate structure, the connection strength between the two can be enhanced, and the overall rigidity and stability of the support structure can be improved. The design of the lower end of the second positioning mounting plate bending outwards in the opposite direction to the extension of the first positioning mounting plate changes the force direction of the support structure, enabling it to better cope with external forces from different directions.

[0010] Preferably, the reinforcing frame includes two spaced-apart L-shaped reinforcing ribs. The outer right-angle plates of the L-shaped reinforcing ribs are attached to the inner sidewalls of the first and second positioning mounting plates. The two L-shaped reinforcing ribs are spaced apart along the width direction of the first positioning mounting plate, and each L-shaped reinforcing rib has a plurality of corresponding wire harness holes. By attaching the two spaced-apart L-shaped reinforcing ribs to the inner sidewalls of the first and second positioning mounting plates, the strength and rigidity of these two plates are greatly enhanced, improving the load-bearing capacity of the supporting structure and enabling it to withstand greater external impacts. The wire harness holes facilitate the arrangement and organization of various wire harnesses in the exhaust gas treatment device, avoiding wire harness tangling and knots.

[0011] Preferably, the first connecting seat is a gearbox housing connecting seat. The first connecting seat includes a connecting bolt that passes through the second positioning mounting plate and extends out of the outer wall of the second positioning mounting plate. A limit block is provided on the body of the connecting bolt extending out of the outer wall of the second positioning mounting plate. By using the connecting bolt to pass through the second positioning mounting plate and extend out of the outer wall, and cooperating with the limit block, the first connecting seat is connected to the gearbox housing, which can effectively ensure the relative positional stability between the exhaust gas treatment device and the gearbox.

[0012] Preferably, the limiting block is a cylindrical stop, and the cylindrical stop has threaded holes that extend through both ends of the cylindrical stop along its central axis. These threaded holes are matched with the connecting bolts. By matching the threaded holes on the cylindrical stop with the connecting bolts, the limiting block can be accurately installed on the connecting bolts, ensuring the effectiveness of the limiting function.

[0013] Preferably, the second connecting seat is an engine flywheel housing connecting seat. The second connecting seat includes a connecting portion plate that is fitted and fixed to the outer wall of the second positioning mounting plate, and a fixing portion plate vertically disposed on the connecting portion plate. The upper and lower portions of the fixing portion plate are respectively provided with connecting through holes. The second connecting seat is fitted and fixed to the outer wall of the second positioning mounting plate via the connecting portion plate, and then connected to the engine flywheel housing via the vertically disposed fixing portion plate. This connection method increases the contact area and improves the stability and reliability of the connection.

[0014] Preferably, the connecting plate is provided with two positioning bolts that pass through the second positioning mounting plate and the connecting plate at intervals. By having the two positioning bolts on the connecting plate pass through the second positioning mounting plate and the connecting plate, the relative position of the second connecting seat and the second positioning mounting plate can be accurately determined, ensuring the accuracy and stability of the connection.

[0015] Preferably, the fixing plate is perpendicular to the second positioning mounting plate and is located on the side of the connecting plate near the gearbox housing connecting seat. The width of the upper plate of the fixing plate is smaller than the width of the lower plate. This design, where the upper plate of the fixing plate is narrower than the lower plate, conforms to mechanical principles, better distributes the force, and improves the stability and load-bearing capacity of the connection.

[0016] In summary, the beneficial effects of this utility model are as follows: The structure of this utility model is stable and not easily cracked or deformed. The first positioning mounting plate connects the first positioning housing and the second positioning housing, enhancing the overall integrity of the external positioning structure of the exhaust main pipe and exhaust auxiliary pipe, allowing the support structure to better distribute stress. The reinforcing frame, located on the first and second positioning mounting plates, further improves the strength and rigidity of the entire support structure, enabling it to withstand greater external impacts, ensuring the stability of the support structure under complex working conditions, and extending its service life. Specifically, the width of the end of the first positioning mounting plate furthest from the second positioning mounting plate is greater than the width of the connecting end. This design optimizes stress distribution, making the stress on the support structure more balanced in different directions, avoiding stress concentration, and improving the reliability and durability of the structure. The first and second connecting seats on the second positioning mounting plate facilitate the connection of the support structure to other components (such as the gearbox, engine, etc.), allowing the exhaust gas treatment device to be securely installed on the equipment and ensuring its normal operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation positions of the first connecting seat and the second connecting seat of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the first positioning mounting plate and the second positioning mounting plate of this utility model.

[0020] In the diagram: 1. Exhaust main pipe; 2. Exhaust secondary pipe; 3. First positioning housing; 4. Second positioning housing; 5. First positioning mounting plate; 6. Second positioning mounting plate; 7. Reinforcing frame; 8. First connecting seat; 9. Second connecting seat; 10. Wiring harness hole; 11. Connecting bolt; 12. Limiting block; 13. Connecting plate; 14. Fixing plate; 15. Connecting through hole; 16. Positioning bolt. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0022] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, 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 application.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0025] like Figure 1 As shown, this utility model includes an exhaust main pipe 1 and an exhaust secondary pipe 2 connected at their ends. The exhaust main pipe 1 is provided with a first positioning housing 3 on its exterior, and the exhaust secondary pipe 2 is provided with a second positioning housing 4 on its exterior. The exhaust main pipe 1 and the exhaust secondary pipe 2 are vertically connected at their ends to form an L-shaped pipe structure. The first positioning housing 3 is arranged along the length of the exhaust main pipe 1, and the lower part of the first positioning housing 3 covers the connection between the exhaust main pipe 1 and the exhaust secondary pipe 2. In the design, the second positioning housing 4 is arranged along the length of the exhaust secondary pipe 2, and the lower end of the second positioning housing 4 is located on the same horizontal plane as the lower end of the first positioning housing 3. In this way, the exhaust main pipe 1 and the exhaust secondary pipe 2 form an L-shaped pipe structure, which better meets the actual installation space requirements and can effectively utilize the limited space, making the overall layout of the exhaust gas treatment device more compact and reasonable. The lower part of the first positioning housing 3 covers the connection between the exhaust main pipe 1 and the exhaust secondary pipe 2, which protects the connection part and reduces the risk of external impact or damage to this part.

[0026] like Figure 1 - Figure 3 As shown, a first positioning mounting plate 5 connecting the first positioning housing 3 and the second positioning housing 4 is provided at the lower part of the two. A second positioning mounting plate 6 is vertically fixed to the end of the positioning mounting plate away from the first positioning housing 3. In the design, the width of the end of the first positioning mounting plate 5 away from the second positioning mounting plate 6 is greater than the width of the end connecting the first positioning mounting plate 5 and the second positioning mounting plate 6. The end of the first positioning mounting plate 5 away from the second positioning mounting plate 6 has an arc-shaped structure. The first positioning housing 3 is a cylindrical housing structure, and the curvature of the bottom edge of the first positioning housing 3 is adapted to the curvature of the outer edge of the first positioning mounting plate 5. Thus, through... The arc-shaped plate structure at the outer end of the first positioning mounting plate 5 is adapted to the curvature of the bottom edge of the first positioning housing 3, increasing the contact area between the two and making the connection between the first positioning mounting plate 5 and the first positioning housing 3 tighter and more stable. This allows for better transmission and distribution of force and improves the overall stability of the support structure. The second positioning housing 4 is fixedly installed on the plate of the first positioning mounting plate 5 near the second positioning mounting plate 6. This arc-shaped design avoids the stress concentration problem caused by right-angle connections, making the force more evenly distributed throughout the structure, reducing the risk of structural damage due to stress concentration, and extending the service life of the support structure.

[0027] like Figure 2 and Figure 3 As shown, the first positioning mounting plate 5 and the second positioning mounting plate 6 are L-shaped plate structures formed by integrally bending strip plates. The lower end of the second positioning mounting plate 6 is bent outwards and in the opposite direction to the extension of the first positioning mounting plate 5. By integrally bending the first positioning mounting plate 5 and the second positioning mounting plate 6 into an L-shaped plate structure, the connection strength between the two can be enhanced, and the overall rigidity and stability of the support structure can be improved. The design of the lower end of the second positioning mounting plate 6 bending outwards and in the opposite direction to the extension of the first positioning mounting plate 5 changes the force direction of the support structure, enabling it to better cope with external forces from different directions.

[0028] like Figure 1 - Figure 3As shown, a reinforcing frame 7 is connected to the first positioning mounting plate 5 and the second positioning mounting plate 6. The reinforcing frame 7 includes two spaced L-shaped reinforcing ribs. The right-angle plates at the outer ends of the L-shaped reinforcing ribs are attached to the inner sidewalls of the first positioning mounting plate 5 and the second positioning mounting plate 6. In the design, the two L-shaped reinforcing ribs are spaced apart along the width direction of the first positioning mounting plate 5. Multiple corresponding wire harness holes 10 are provided on the two L-shaped reinforcing ribs. By attaching the two spaced L-shaped reinforcing ribs to the inner sidewalls of the first positioning mounting plate 5 and the second positioning mounting plate 6, the strength and rigidity of the two plates are greatly enhanced, the load-bearing capacity of the support structure is improved, and it can withstand greater external impact. The wire harness holes 10 facilitate the arrangement and organization of various wire harnesses in the exhaust gas treatment device, avoiding wire harness confusion and tangling.

[0029] like Figure 1 - Figure 3 As shown, a first connecting seat 8 and a second connecting seat 9 are provided on the outer wall of the second positioning mounting plate 6. In the design, the first connecting seat 8 is a gearbox housing connecting seat. The first connecting seat 8 includes a connecting bolt 11 that passes through the second positioning mounting plate 6 and extends out of the outer wall of the second positioning mounting plate 6. A limiting block 12 is provided on the body of the connecting bolt 11 that extends out of the outer wall of the second positioning mounting plate 6. In this way, by using the connecting bolt 11 to pass through the second positioning mounting plate 6 and extend out of the outer wall, and cooperating with the limiting block 12, the first connecting seat 8 is connected to the gearbox housing, which can effectively ensure the relative position stability between the exhaust gas treatment device and the gearbox. In the manufacturing process, the limiting block 12 is a cylindrical stop block. The cylindrical stop block is provided with threaded holes that pass through both ends of the cylindrical stop block along the central axis of the cylindrical stop block. The threaded holes match the connecting bolt 11. In this way, by matching the threaded holes on the cylindrical stop block with the connecting bolt 11, the limiting block 12 can be accurately installed on the connecting bolt 11, ensuring the effectiveness of the limiting function.

[0030] like Figure 1 - Figure 3As shown, the second connecting seat 9 is an engine flywheel housing connecting seat. This second connecting seat 9 includes a connecting plate 13 that is fixed to the outer wall of the second positioning mounting plate 6, and a fixing plate 14 vertically disposed on the connecting plate 13. Connecting through holes 15 are respectively provided on the upper and lower parts of the fixing plate 14. Thus, the second connecting seat 9 is fixed to the outer wall of the second positioning mounting plate 6 via the connecting plate 13, and then connected to the engine flywheel housing via the vertically disposed fixing plate 14. This connection method increases the contact area and improves the stability and reliability of the connection. In the design, two positioning bolts 16 are spaced apart on the connecting plate 13, passing through the second positioning mounting plate 6 and the connecting plate 13. By having the two positioning bolts 16 pass through the second positioning mounting plate 6 and the connecting plate 13, the relative position of the second connecting seat 9 and the second positioning mounting plate 6 can be accurately determined, ensuring the accuracy and stability of the connection. During manufacturing, the aforementioned fixing plate 14 is perpendicular to the second positioning mounting plate 6 and is positioned on the side of the connecting plate 13 near the gearbox housing connecting seat. The width of the upper plate of the fixing plate 14 is smaller than the width of the lower plate. This design, where the upper plate of the fixing plate 14 is narrower than the lower plate, conforms to mechanical principles, better distributes the stress, and improves the stability and load-bearing capacity of the connection.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A support structure of a tail gas treatment device, comprising an exhaust main pipe (1) and an exhaust sub-pipe (2) connected at the ends, the outer part of the exhaust main pipe (1) is provided with a first positioning shell (3), and the outer part of the exhaust sub-pipe (2) is provided with a second positioning shell (4), characterized in that: The lower part of the first positioning shell (3) and the second positioning shell (4) is provided with a first positioning mounting plate (5) connecting the two, and the end of the positioning mounting plate away from the first positioning shell (3) is vertically fixed with a second positioning mounting plate (6), the first positioning mounting plate (5) and the second positioning mounting plate (6) are connected with a reinforcing frame (7), the outer wall of the second positioning mounting plate (6) is provided with a first connecting seat (8) and a second connecting seat (9), and the width of the end plate of the first positioning mounting plate (5) away from the second positioning mounting plate (6) is greater than the width of the plate body at the connecting end of the first positioning mounting plate (5) and the second positioning mounting plate (6).

2. The support structure for exhaust treatment devices of claim 1, wherein: The end pipe of the exhaust main pipe (1) and the exhaust auxiliary pipe (2) is vertically connected to form an L-shaped pipe structure, the first positioning shell (3) is arranged along the length direction of the exhaust main pipe (1) and covers the lower shell at the connecting part of the exhaust main pipe (1) and the exhaust auxiliary pipe (2), and the second positioning shell (4) is arranged along the length direction of the exhaust auxiliary pipe (2) and the lower end of the second positioning shell (4) is located on the same horizontal plane as the lower end of the first positioning shell (3).

3. The support structure for exhaust treatment devices of claim 1, wherein: The end plate body of the first positioning mounting plate (5) away from the second positioning mounting plate (6) is in an arc-shaped plate body structure, the first positioning shell (3) is a cylindrical shell structure, and the curvature of the lower bottom edge of the first positioning shell (3) is adapted to the curvature of the outer end edge of the first positioning mounting plate (5).

4. The support structure for exhaust treatment devices of claim 1, wherein: The first positioning mounting plate (5) and the second positioning mounting plate (6) are L-shaped plate body structures formed by integrally bending a strip-shaped plate, and the lower end of the second positioning mounting plate (6) is bent outward and opposite to the extension direction of the first positioning mounting plate (5).

5. The support structure for exhaust treatment devices of claim 1, wherein: The reinforcing frame (7) comprises two spaced L-shaped reinforcing ribs, the outer end right-angle plates of the L-shaped reinforcing ribs are attached to the inner side walls of the first positioning mounting plate (5) and the second positioning mounting plate (6), the two L-shaped reinforcing ribs are spaced along the width direction of the first positioning mounting plate (5), and a plurality of corresponding wire harness holes (10) are arranged on the two L-shaped reinforcing ribs.

6. The support structure for exhaust treatment devices of claim 1, wherein: The first connecting seat (8) is a gearbox shell connecting seat, the first connecting seat (8) comprises a connecting bolt (11) penetrating through the second positioning mounting plate (6) and extending out of the outer wall of the second positioning mounting plate (6), and the connecting bolt (11) is provided with a limiting block (12) on the outer wall body extending out of the second positioning mounting plate (6).

7. The support structure for exhaust treatment devices of claim 6, wherein: The limiting block (12) is a cylindrical stopper, a threaded hole penetrating through the two end faces of the cylindrical stopper along the central axis of the cylindrical stopper is arranged on the cylindrical stopper, and the threaded hole is matched with the connecting bolt (11).

8. The support structure for exhaust treatment devices of claim 1, wherein: The second connecting seat (9) is an engine flywheel shell connecting seat, the second connecting seat (9) comprises a connecting part plate body (13) attached to the outer wall of the second positioning mounting plate (6) and a fixed part plate body (14) vertically arranged on the connecting part plate body (13), and connecting through holes (15) are respectively arranged on the upper part and the lower part of the fixed part plate body (14).

9. The support structure for exhaust treatment devices of claim 8, wherein: The connecting part plate body (13) is provided with two positioning bolts (16) which pass through the second positioning mounting plate (6) and the connecting part plate body (13) and are arranged at intervals.

10. The support structure for exhaust treatment devices of claim 8, wherein: The fixed part plate body (14) is perpendicular to the second positioning mounting plate (6) and is arranged on the side of the connecting part plate body (13) close to the transmission case connecting seat, and the width of the upper plate body of the fixed part plate body (14) is less than the width of the lower plate body.

Images