Air filter support assembly and commercial vehicle

By adopting a fixing method of combining rigid connection and elastic connection in the air filter bracket, the torsional stress concentration problem caused by the existing technology hollow filter bracket is solved, and the effect of improving the shock-absorbing and torsional performance of the bracket and avoiding fracture and damage is achieved.

CN222759867UActive Publication Date: 2025-04-15XUZHOU XCMG AUTOMOTIVE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421743051.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-04-15
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

The existing air filter brackets bear huge loads during the vehicle operation, resulting in concentrated torsional stress on the longitudinal beam, which can easily cause bolts to be loosened, broken and bracket damage, affecting the normal operation of commercial vehicle air intake system.

Method used

The fixing method is adopted for combining rigid connections and elastic connections. The mounting base plate is rigidly connected to the cab suspension. The fixing cover and rubber sheath are connected to the cab suspension through elastic connections to balance torsional stress and improve shock absorption and torsional resistance.

Benefits of technology

It effectively avoids faults such as breakage due to strength problems of the air filter bracket, ensures the normal operation of the air intake system of commercial vehicles, and at the same time, the lightweight design reduces the weight of the structural parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air filter support assembly and a commercial vehicle. The air filter support assembly comprises a mounting pipe; the mounting frame is fixed in the middle of the mounting pipe and is connected with the air filter; the elastic connecting assembly is mounted at the right end of the mounting pipe and comprises a rubber sheath and a fixed protective shell, the rubber sheath sleeves the end of the mounting pipe, the fixed protective shell sleeves the rubber sheath, and the fixed protective shell is connected with a right rear suspension of the cab; the rigid connecting assembly is mounted at the left end of the mounting pipe and comprises a connecting plate connected with the mounting pipe and a mounting bottom plate connected with the connecting plate, and the mounting bottom plate is connected with a left rear suspension of the cab. According to the air filter support assembly, the rigid connecting end plays a more role in fixing in the stress process, stress is more concentrated on the elastic connecting end, the influence of torsional stress of the left longitudinal beam and the right longitudinal beam on the air filter support in the using process of a vehicle is balanced, the shock absorption and torsion resistance performance of the air filter support is improved, breakage and damage are avoided, and the service life of the air filter support is prolonged. And meanwhile, a lightweight design is adopted, so that the weight of structural parts is reduced.
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Description

Technical Field

[0001] The utility model relates to an air filter bracket assembly and a commercial vehicle, belonging to the technical field of air filter installation. Background Art

[0002] The air filter is an important part of the air intake system of commercial vehicles, used to filter impurities such as dust and particulate matter in the air. If the air filter does not work properly, impurities may be sucked into the engine cylinder, causing wear to the cylinder during the repeated movement of the piston group; at the same time, the air filter also has the function of providing sufficient air for the engine fuel combustion. Therefore, ensuring the normal operation of the air filter is of great significance to the safety and reliability of the engine.

[0003] The air filter bracket is used to install and fix the air filter. When designing commercial vehicles, the air filter bracket is usually fixed to the chassis frame longitudinal beam or the frame connector, such as the cab rear suspension, and then the air filter is installed on the upper surface of the air filter bracket. The air filter bracket provides support and guarantee for the stable operation of the air filter. In the existing common structure, the air filter bracket is generally rigidly connected to the connector on the frame (such as the cab rear suspension) by bolts at both ends. During the operation of the vehicle, the huge load it bears will cause torsional stress on the left and right longitudinal beams. This stress can easily cause stress concentration at the fixing points at both ends of the air filter bracket, eventually causing the bolts to loosen, break, or even damage the air filter bracket. When the air filter bracket is broken or damaged due to strength problems, it will affect the normal operation of the entire commercial vehicle intake system. Summary of the invention

[0004] In view of the problems existing in the prior art, the utility model provides an air filter bracket assembly and a commercial vehicle with shock-absorbing and torsion-resistant performance.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts an air filter bracket assembly, comprising:

[0006] Installation pipe;

[0007] A mounting frame fixed to the middle of the mounting tube, wherein the mounting frame is connected to the air filter;

[0008] An elastic connection assembly installed at the right end of the mounting tube, the elastic connection assembly comprising a rubber sheath sleeved on the end of the mounting tube, a fixed protective shell sleeved on the rubber sheath, and the fixed protective shell is connected to the right rear suspension of the cab;

[0009] A rigid connection component is installed at the left end of the mounting tube, and the rigid connection component includes a connection plate connected to the mounting tube and a mounting base plate connected to the connection plate, and the mounting base plate is connected to the left rear suspension of the cab.

[0010] In some embodiments, the mounting frame is provided with a positioning mounting groove for welding on the mounting tube and a plurality of oblong holes for connecting the air filter.

[0011] In some embodiments, a circular through hole is opened in the center of the rubber sheath, and the inner diameter of the through hole is smaller than the outer diameter of the mounting tube.

[0012] In some embodiments, a separation groove is provided on the rubber sheath.

[0013] In some embodiments, the inner wall of the fixed protective shell is completely in contact with the outer wall of the rubber sheath, and the fixed protective shell is provided with a limiting reinforcing rib for limiting the rubber sheath.

[0014] In some embodiments, the fixed shield is connected to the right rear suspension of the cab via bolts, and a mounting groove for embedding the bolts is provided on the fixed shield.

[0015] In some embodiments, the connecting plate is provided with a connecting through hole for connecting the mounting tube, and the two connecting plates are vertically arranged in parallel and welded to the mounting base plate.

[0016] In some embodiments, the fixed protective shell is die-cast by aluminum casting process; the rubber sheath is molded by EPDM molding.

[0017] In some embodiments, the mounting base plate is provided with weight-reducing holes and a plurality of connection holes.

[0018] A second aspect of the utility model provides a commercial vehicle, comprising a left longitudinal beam and a right longitudinal beam, wherein a left rear suspension of a cab is mounted on the left longitudinal beam, and a right rear suspension of a cab is mounted on the right longitudinal beam, and the air filter bracket assembly is mounted between the left rear suspension of the cab and the right rear suspension of the cab.

[0019] Compared with the prior art, the air filter bracket assembly of the utility model adopts a fixing method combining rigid connection and elastic connection. The mounting base is connected to the cab suspension at one end to form a rigid connection, which ensures its own structural strength; the fixed protective shell is connected to the cab suspension at the other end, and the rubber sheath has the performance of elastic deformation to form an elastic connection. This structure enables the rigid connection end to play a greater fixing role during the force-bearing process, and concentrates the stress more on the elastic connection end, which not only balances the influence of the torsional stress of the left and right longitudinal beams on the air filter bracket during the use of the vehicle, improves the shock absorption and torsion resistance of the air filter bracket, and avoids fracture and damage, but also uses a lightweight design to reduce the weight of the structural parts. Both are taken into account, and the practicality is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the assembly structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the air filter bracket assembly of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the mounting frame of the utility model;

[0024] Figure 4 It is a structural schematic diagram of a fixed protective shell of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the rubber sheath of the utility model;

[0026] In the figure: 1. Air filter bracket assembly, 11. Mounting pipe, 12. Mounting frame, 12a. Positioning mounting groove, 12b. Long round hole, 13. Connecting plate, 14. Mounting bottom plate, 15. Fixed casing, 15a. Mounting groove, 15b. Limiting reinforcement rib, 16. Rubber sheath, 16a. Partition groove, 16b. Through hole, 2. Right rear suspension of cab, 3. Left rear suspension of cab, 4. Right longitudinal beam, 5. Left longitudinal beam, 6. Bolt. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clear, the technical solutions of the present application are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0028] In the description of the present invention, it should be understood that the terms "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the protection content of the present invention.

[0029] like Figure 1-Figure 5As shown, an air filter bracket assembly includes a mounting tube 11, a mounting frame 12, an elastic connection component and a rigid connection component;

[0030] The two mounting brackets 12 are fixed to the middle of the mounting pipe 11 and are used to connect the air filter;

[0031] The elastic connection assembly is installed at the right end of the mounting tube 11, and includes a rubber sheath 16 sleeved on the end of the mounting tube 11, and a fixed protective shell 15 sleeved on the rubber sheath 16, and the fixed protective shell 15 is connected to the right rear suspension 2 of the cab;

[0032] The rigid connection assembly is installed at the left end of the mounting tube 11 , and includes a connecting plate 13 connected to the mounting tube 11 , and a mounting base plate 14 connected to the connecting plate 13 . The mounting base plate 14 is connected to the left rear suspension 3 of the cab.

[0033] In some embodiments, Figure 1 , Figure 2 As shown, the two connecting plates 13 are vertically arranged in parallel and welded together with a mounting base plate 14. The mounting base plate 14 is provided with four connecting holes for being fixed with the connecting holes on the left rear suspension 3 of the cab by bolts, thereby improving the connection stability. The mounting base plate 14 is also provided with weight-reducing holes to ensure its own structural strength while being lightweight.

[0034] In some embodiments, Figure 1 As shown, the connecting plate 13 is provided with a circular connecting through hole, and the left end of the mounting tube 11 passes through the circular connecting through hole for a distance and then is connected by ring welding; Figure 1 , Figure 5 As shown, the right end of the mounting tube 11 passes through a rubber sheath 16, and a circular through hole 16b is opened in the center of the rubber sheath 16. The inner diameter of the through hole 16b is slightly smaller than the outer diameter of the mounting tube 11, so that the inner wall of the rubber sheath 16 can tightly cover the outer wall of the mounting tube 11, thereby improving the fixation of the rubber sheath 16 to the mounting tube 11 and preventing displacement, movement and loosening; the rubber sheath 16 is pushed inward from the end of the mounting tube 11 for a distance.

[0035] In some embodiments, Figure 1 , Figure 2 and Figure 4 As shown, the fixed protective shell 15 covers both ends of the rubber sheath 16, and the inner wall of the fixed protective shell 15 is completely in contact with the outer wall of the rubber sheath 16. A limiting reinforcing rib 15a is provided inside the fixed protective shell 15 to improve the structural strength of the elastic connection end and limit the elastic deformation of the rubber sheath 16.

[0036] like Figure 2 , Figure 3As shown, the fixed protective shell 15 has multiple connection holes, and the connection holes are provided with mounting grooves 15a. Bolts 6 are used to pass through the mounting grooves 15a on the surface of the fixed protective shell 15 to fix it to the connection hole of the right rear suspension 2 of the cab. The mounting grooves 15a on the fixed protective shell 15 allow the bolts 6 to be fully embedded after installation, ensuring the accuracy of the connection of the bolts 6 and the stability of the installation.

[0037] In some embodiments, the fixed housing 15 is die-cast by aluminum casting process and has a hollow design, which reduces the weight of the structure by 60% compared with the same steel structure, thereby ensuring the structural strength while maintaining a lightweight design.

[0038] In some embodiments, the rubber sheath 16 is molded using EPDM and has good compression ductility.

[0039] In some embodiments, other components, such as the mounting tube 11, the mounting frame 12, the connecting plate 13, the mounting base plate 14, etc., are made of ordinary steel and steel pipes, and are formed by laser cutting and bending.

[0040] In some embodiments, Figure 1 , Figure 2 and Figure 3 As shown, two connecting plates 13 are vertically connected to the mounting tube 11 in parallel and are welded to the mounting base plate 14, and two mounting frames 12 are horizontally fixed to the mounting tube 11 in parallel through positioning mounting grooves 12a. This structure can greatly improve the lateral stress strength and longitudinal stress strength of the air filter bracket assembly 1, ensuring reliability and practicality; four oblong holes are opened on the surface of the two mounting frames 12, which are connected by multiple bolts to achieve the positioning installation of the air filter, increase the fixing strength, and reduce the impact of production errors on the installation.

[0041] In some embodiments, Figure 5 As shown, the rubber sheath 16 is provided with a separation groove 16a, which can reduce the impact of rubber component production errors and improve the convenience of installation.

[0042] A second aspect of the present utility model provides a commercial vehicle, such as Figure 1 As shown, it includes a left longitudinal beam 5 and a right longitudinal beam 4, the left longitudinal beam 5 is mounted with a left rear suspension 3 of the cab, the right longitudinal beam 4 is mounted with a right rear suspension 2 of the cab, and the air filter bracket assembly 1 is mounted between the left rear suspension 3 of the cab and the right rear suspension 2 of the cab.

[0043] The air filter bracket assembly of the utility model adopts a fixing method combining rigid connection and elastic connection. The mounting base is connected to the cab suspension at one end to form a rigid connection, which ensures its own structural strength; the fixed protective shell is connected to the cab suspension at the other end, and the rubber sheath has the performance of elastic deformation to form an elastic connection; this structure enables the rigid connection end to play a more fixed role in the force-bearing process, and the stress is more concentrated on the elastic connection end, which not only balances the influence of the torsional stress of the left and right longitudinal beams on the air filter bracket during the use of the vehicle, but also improves the shock absorption and torsion resistance of the air filter bracket, and avoids fracture damage; at the same time, it also uses a lightweight design to reduce the weight of the structural parts. Both are taken into account, and the practicality is good.

[0044] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

Claims

1. An air filter bracket assembly, characterized in that: include: Mounting pipe (11); A mounting frame (12) fixed to the middle of the mounting tube (11), wherein the mounting frame (12) is connected to the air filter; An elastic connection component installed at the right end of the mounting tube (11), the elastic connection component comprising a rubber sheath (16) sleeved on the end of the mounting tube (11), and a fixed protective shell (15) sleeved on the rubber sheath (16), wherein the fixed protective shell (15) is connected to the right rear suspension (2) of the cab; A rigid connection assembly is installed at the left end of the mounting tube (11), the rigid connection assembly comprising a connection plate (13) connected to the mounting tube (11), a mounting base plate (14) connected to the connection plate (13), and the mounting base plate (14) is connected to the left rear suspension (3) of the cab.

2. The air filter bracket assembly according to claim 1, characterized in that: The mounting frame (12) is provided with a positioning mounting groove (12a) for welding on the mounting pipe (11) and a plurality of oblong holes (12b) for connecting an air filter.

3. The air filter bracket assembly according to claim 1, characterized in that: A circular through hole (16b) is formed at the center of the rubber sheath (16), and the inner diameter of the through hole (16b) is smaller than the outer diameter of the mounting tube (11).

4. An air filter bracket assembly according to claim 1 or 3, characterized in that: The rubber sheath (16) is provided with a separation groove (16a).

5. The air filter bracket assembly according to claim 1, characterized in that: The inner wall of the fixed protective shell (15) is completely in contact with the outer wall of the rubber protective sleeve (16), and a limiting reinforcing rib (15b) for limiting the position of the rubber protective sleeve (16) is provided on the fixed protective shell (15).

6. The air filter bracket assembly according to claim 1, characterized in that: The fixed protective shell (15) is connected to the right rear suspension (2) of the cab via bolts (6), and a mounting groove (15a) for embedding the bolts (6) is provided on the fixed protective shell (15).

7. The air filter bracket assembly according to claim 1, characterized in that: The connecting plate (13) is provided with a connecting through hole for connecting the mounting tube (11), and the two connecting plates (13) are vertically arranged in parallel and connected to the mounting base plate (14) by butt welding.

8. The air filter bracket assembly according to claim 1, characterized in that: The fixed protective shell (15) is die-casted by using an aluminum casting process; and the rubber protective sleeve (16) is die-casted by using EPDM.

9. The air filter bracket assembly according to claim 1, characterized in that: The installation base plate (14) is provided with a weight-reducing hole and a plurality of connection holes.

10. A commercial vehicle, comprising a left longitudinal beam (5) and a right longitudinal beam (4), wherein a left rear suspension (3) of a cab is mounted on the left longitudinal beam (5), and a right rear suspension (2) of a cab is mounted on the right longitudinal beam (4), characterized in that: An air filter bracket assembly (1) according to any one of claims 1 to 9 is installed between the left rear suspension (3) of the cab and the right rear suspension (2) of the cab.