Loader drive rear axle mounting structure

Abstract

The utility model relates to a loader drive rear axle mounting structure, including the installation component of symmetrical setting in the left and right sides of frame, the installation component includes first mounting plate and second mounting plate, first mounting plate, second mounting plate with drive rear axle connection position between all are provided with installation pasting board, first mounting plate is L type bent plate, second mounting plate is U type bent plate, and the first mounting plate of L type design and the second mounting plate of U type setting combination support, promote the support rigidity of drive rear axle, optimize structure rigidity, effectively disperse alternating stress, significantly reduce the crack risk of weld heat affected zone and the fracture risk of mounting plate, the design of positioning hole on installation pasting board provides the installation centering reference for drive rear axle, reduces the installation adjustment time, and multiple mounting holes cooperate high -strength bolt to ensure the connection reliability, prolongs the structure life.

Description

Technical Field

[0001] This utility model belongs to the field of rear axle installation technology, specifically relating to a loader drive rear axle installation structure. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] The vehicle's suspension system is the connecting device that converts forces between the frame and the axle. It mainly transmits and distributes the vertical and longitudinal reaction forces borne by the wheels, as well as the impacts and fluctuations generated during driving, to the frame structure to ensure the stability of the vehicle and is a fundamental component that ensures the vehicle can drive normally and safely under various road conditions.

[0004] As an indispensable heavy engineering machine in many fields such as logistics transportation, construction engineering, and mining, loaders have high operating intensity and complex and variable working conditions, which puts extremely high requirements on the strength and reliability of the overall structure. As the core load-bearing component connecting the loader's rear drive axle and main frame, the mounting plate bears complex alternating stresses from the road surface, operating load, and the machine's own movement. In actual operation, when the mounting plate is only connected to the side plate of the frame on its side, cracks may appear in the heat-affected zone of the weld due to fatigue load. Under extreme or continuous shear and bending stress, the mounting plate may fracture and other structural failures, causing safety hazards. Utility Model Content

[0005] The purpose of this invention is to provide a loader drive rear axle mounting structure that can at least solve one of the above-mentioned technical problems.

[0006] To achieve the above objectives, one or more embodiments of this utility model provide a loader drive rear axle mounting structure, including mounting components symmetrically arranged on the left and right sides of the frame. The mounting components include a first mounting plate and a second mounting plate. Mounting plates are provided between the first mounting plate and the second mounting plate and the connection position of the drive rear axle. The first mounting plate is located on the side of the drive rear axle closer to the engine, and the second mounting plate is located on the side of the drive rear axle closer to the wheel.

[0007] Furthermore, the first mounting plate is an L-shaped bent plate, and the second mounting plate is a U-shaped bent plate.

[0008] Furthermore, the sides of both the first mounting plate and the second mounting plate are fixedly connected to the side plates of the vehicle frame.

[0009] Furthermore, both the first mounting plate and the second mounting plate are fixedly connected to the mounting plate.

[0010] Furthermore, the tops of the first mounting plate and the second mounting plate are fixedly connected to the reinforcing plate on the side plate of the vehicle frame.

[0011] Furthermore, the mounting plate is connected to the long side of the first mounting plate, and the mounting plate is connected to the middle area of ​​the second mounting plate.

[0012] Furthermore, the mounting plate is provided with a plurality of mounting holes evenly distributed therefrom, and the mounting holes include at least one positioning hole.

[0013] Furthermore, both the first mounting plate and the second mounting plate are provided with through holes corresponding to the mounting holes of the mounting plate.

[0014] Furthermore, the positioning hole is located at the center of symmetry of the mounting plate.

[0015] Furthermore, a positioning sleeve and a positioning bolt are provided inside the positioning hole.

[0016] The beneficial effects of one or more of the above technical solutions are as follows: This utility model uses an L-shaped first mounting plate and a U-shaped second mounting plate for support, which improves the support rigidity of the drive rear axle, optimizes the structural stiffness, effectively disperses alternating stress, and significantly reduces the risk of weld heat-affected zone cracking and mounting plate shear stress fracture.

[0017] The design of the positioning holes on the mounting plate provides an installation centering reference for the drive rear axle, reducing installation and adjustment time. Multiple mounting holes, together with high-strength bolts, ensure connection reliability and extend structural life. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram showing the connection between the mounting components and the vehicle frame in an embodiment of this utility model; Figure 2 This is a schematic diagram showing the installation positions of the mounting components and the drive rear axle in an embodiment of this utility model; Figure 3 This is a schematic diagram of the first mounting plate structure in an embodiment of this utility model; Figure 4 This is a schematic diagram of the second mounting plate structure in an embodiment of this utility model.

[0020] In the diagram, 1 is the side panel of the vehicle frame; 2 is the rear drive axle; 3 is the first mounting plate; 4 is the second mounting plate; 5 is the mounting plate; and 6 is the reinforcing plate. Detailed Implementation

[0021] like Figures 1 to 4 As shown, this embodiment provides a loader drive rear axle mounting structure, including mounting components symmetrically arranged on the left and right sides of the frame, each mounting component including a first mounting plate 3 and a second mounting plate 4.

[0022] like Figure 1 and Figure 2 As shown, the first mounting plate 3 is located on the side of the drive rear axle 2 near the engine, and the second mounting plate 4 is located on the side of the drive rear axle 2 near the wheel. The first mounting plate 3 is set as an L-shaped curved plate, and the second mounting plate 4 is set as a U-shaped curved plate. The sides of the first mounting plate 3 and the second mounting plate 4 are welded and fixed to the side plate 1 of the frame. The tops of the first mounting plate 3 and the second mounting plate 4 are fixedly connected to the reinforcing plate 6 on the side plate 1 of the frame.

[0023] Specifically, the first mounting plate 3 provides a stable support surface on the engine side, and the second mounting plate 4 forms a three-sided surround support on the wheel side, which can effectively resist the complex multi-directional impact load transmitted from the wheel, improve the local support stiffness of the mounting point to the drive rear axle 2, reduce stress concentration at the mounting point, reduce the risk of deformation or cracking of the mounting plate under long-term heavy load and impact conditions, and extend the structural life.

[0024] like Figure 1 As shown, the sides of the first mounting plate 3 and the second mounting plate 4 are welded to the side plate 1 of the frame, and the top is welded to the reinforcing plate 6 on the side plate 1 of the frame. This more effectively transmits and distributes the load of the drive rear axle 2 to the main structure of the frame, improves the ability of the frame to resist the huge torque, bending moment and impact load transmitted from the drive rear axle 2 in the local area, effectively suppresses the local deformation and vibration of the side plate 1 of the frame, and enhances the structural rigidity and stability of the whole machine.

[0025] Mounting plates 5 are provided between the first mounting plate 3, the second mounting plate 4 and the drive rear axle 2, and the first mounting plate 3 and the second mounting plate 4 are fixedly connected to the mounting plates 5.

[0026] Specifically, such as Figure 3 and Figure 4 As shown, the first mounting plate 3 is fixedly connected to the drive rear axle 2 via its long side to the corresponding mounting plate 5; the second mounting plate 4 is fixedly connected to the drive rear axle 2 via the middle area of ​​its U-shaped structure to the corresponding mounting plate 5.

[0027] The mounting plate 5 has at least seven mounting holes evenly distributed on it. High-strength bolts are passed through the mounting holes to fix the mounting plate 5 to the corresponding mounting surface of the drive rear axle 2. The mounting hole located at the symmetrical center of the mounting plate 5 is a positioning hole. A positioning sleeve and a positioning bolt that cooperate with it are provided in the positioning hole to provide an initial positioning reference for the installation of the mounting plate 5 on the drive rear axle 2.

[0028] Both the first and second mounting plates are provided with through holes that correspond one-to-one with all the mounting holes (including positioning holes and other ordinary mounting holes) on the mounting plate 5 and are precisely matched in position. These through holes are used to insert connecting bolts, so that the first and second mounting plates can be reliably fixedly connected to the drive rear axle 2 indirectly through the mounting plate 5.

[0029] The working principle of this utility model: During the assembly process, the positioning bolts are first passed through the positioning sleeve to initially center the drive rear axle 2 and temporarily connect it to the mounting plate 5. Then, the bolts are passed through the mounting plate to fix the drive rear axle 2 to the mounting assembly. This reduces the time wasted and damage to the mounting assembly caused by repeatedly adjusting the centering mounting hole position, ensuring assembly accuracy and efficiency, ensuring the positional accuracy of the drive rear axle 2 relative to the frame and other components of the transmission system (such as the engine and gearbox), and extending the service life of the frame and mounting structure.

[0030] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A mounting structure for a loader's drive rear axle, characterized in that, The vehicle includes mounting components symmetrically arranged on the left and right sides of the frame. Each mounting component includes a first mounting plate and a second mounting plate. Mounting plates are provided between the first mounting plate and the second mounting plate and the connection position with the drive rear axle. The first mounting plate is located on the drive rear axle near the engine, and the second mounting plate is located on the drive rear axle near the wheel.

2. The loader drive rear axle mounting structure according to claim 1, characterized in that, The first mounting plate is an L-shaped bent plate, and the second mounting plate is a U-shaped bent plate.

3. The loader drive rear axle mounting structure according to claim 1, characterized in that... The sides of both the first mounting plate and the second mounting plate are fixedly connected to the side plate of the vehicle frame.

4. The loader drive rear axle mounting structure according to claim 1, characterized in that, The first mounting plate and the second mounting plate are both fixedly connected to the mounting plate.

5. The loader drive rear axle mounting structure according to claim 1, characterized in that, The tops of the first mounting plate and the second mounting plate are fixedly connected to the reinforcing plate on the side plate of the vehicle frame.

6. The loader drive rear axle mounting structure according to claim 1, characterized in that, The mounting plate is connected to the long side of the first mounting plate, and the mounting plate is connected to the middle area of ​​the second mounting plate.

7. The loader drive rear axle mounting structure according to claim 1, characterized in that, The mounting plate is provided with a plurality of mounting holes evenly distributed therefrom, and the mounting holes include at least one positioning hole.

8. The loader drive rear axle mounting structure according to claim 1, characterized in that, Both the first mounting plate and the second mounting plate are provided with through holes corresponding to the mounting holes of the mounting plate.

9. The loader drive rear axle mounting structure according to claim 7, characterized in that, The positioning hole is located at the center of symmetry of the mounting plate.

10. The loader drive rear axle mounting structure according to claim 7, characterized in that, The positioning hole is equipped with a positioning sleeve and a positioning bolt.

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