Subframe structure applied to special vehicle

Abstract

The utility model belongs to special vehicle technical field discloses a kind of subframe structure applied to special vehicle, including two upper control arm support (1), two lower control arm support (3), two fixed flange (2), the upper control arm support (1) section is the "Y" shape structure, its top two face is 135 ° and body bottom plate is inlaid, the face of bottom and the top connection of one of fixed flange (2);Two upper control arm supports (1) are symmetrically arranged, and two fixed flanges (2) are respectively fixed with corresponding upper control arm support (1).The utility model's technical scheme makes the suspension mechanism of vehicle, steering mechanism, transmission system can be fixed on subframe, realizes transmission, action integration connection, and with higher strength, can bear larger load, satisfy the travel requirement of special vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of special vehicle technology, specifically relating to a subframe structure applied to special vehicles. Background Technology

[0002] The subframe is one of the basic structural components of a vehicle. It forms the skeleton of the axles, supporting each axle and suspension unit, and providing mounting locations for components of the suspension, steering, and powertrain systems. It ensures a stable connection between the axles, suspension, and vehicle body, distributing loads to the most suitable areas of the vehicle body and providing excellent load-bearing support. For example... Figure 1 The subframe has four mounting points that are bolted to the vehicle body. The stabilizer bar, lower control arm, and other components are connected to the main subframe. The powertrain is connected to the main subframe via mounts. During vehicle operation, the connection point between the main subframe and the lower control arm is subjected to loads transmitted from the wheels through the lower control arm, while the powertrain mounts are affected by forces transmitted from the transmission. Traditional automotive subframes often employ semi-frame, full-frame, or multi-link subframe structures. Their primary function is to connect the suspension system and fix it to the vehicle body. Semi-frame subframes are frequently used in some front suspension structures. Full-frame and multi-link subframes can be used in rear suspension structures.

[0003] The subframe of special vehicles not only connects the upper control arm, lower control arm, and stabilizer bar of the suspension system, but also fixes the transmission box rotating flange. In addition, it must have high strength and rigidity to withstand the strong load brought by the control arm. Traditional vehicle subframes cannot meet the requirements, so a new subframe needs to be designed to adapt to the installation of special vehicles. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is: how to make the subframe have high strength, be able to withstand large loads, and meet the driving requirements of special vehicles.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides a subframe structure for use on special vehicles, characterized in that it includes two upper control arm supports 1, two lower control arm supports 3, and two fixing flanges 2. The upper control arm supports 1 have a "Y" shaped cross-section, with their top two surfaces fitting against the vehicle floor at 135°, and their bottom surface connected to the top of one of the fixing flanges 2. The two upper control arm supports 1 are symmetrically arranged, and the two fixing flanges 2 are respectively fixed to the corresponding upper control arm supports 1. The lower control arm supports 3 are elongated, with "T" shaped connecting structures 10 at both ends, which are respectively connected to the bottom of the two fixing flanges 2. The two lower control arm supports 3 are arranged side by side.

[0008] Furthermore, an upper crossarm connecting bracket 8 is provided on the upper control arm support 1.

[0009] Furthermore, the upper control arm support 1 and the upper cross arm connecting bracket 8 are an integrated structure.

[0010] Furthermore, the upper crossarm connecting bracket 8 is provided with a connecting hole.

[0011] Furthermore, a lower crossarm connecting bracket 12 is provided on the lower control arm support 3.

[0012] Furthermore, the lower control arm support 3 and the lower cross arm connecting bracket 12 are an integrated structure.

[0013] Furthermore, a hole is provided in the middle of the fixed flange 2 for connecting the transmission box bridge hole.

[0014] Furthermore, the lower control arm support 3 has a connecting hole in the middle for fixing the transmission box.

[0015] Furthermore, the fixed flange 2 is made of armor steel.

[0016] Furthermore, the lower part of the fixed flange 2 is welded to the lower control arm support 3, and the upper part is connected to the upper control arm support by bolts.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention has the following advantages: it enables the vehicle's suspension mechanism, steering mechanism, and transmission system to be fixed on the subframe, realizing the integrated connection of transmission and motion, and has high strength, can withstand large loads, and meets the driving requirements of special vehicles. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a traditional subframe.

[0020] Figure 2 This is a schematic diagram of the subframe structure of this utility model applied to special vehicles;

[0021] Figure 3 This is a schematic diagram of the lower control arm support;

[0022] Figure 4 This is a schematic diagram of the upper control arm support;

[0023] Figure 5 This is a schematic diagram of a fixed flange. Detailed Implementation

[0024] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0025] The subframe of this embodiment includes two upper control arm supports 1, two lower control arm supports 3, and two fixing flanges 2. The upper control arm supports 1 have a "Y" shaped cross-section, with their top two surfaces at a 135° angle to fit against the vehicle floor, and their bottom surface connected to the top of one of the fixing flanges 2. The two upper control arm supports 1 are symmetrically arranged, and the two fixing flanges 2 are respectively fixed to the corresponding upper control arm supports 1. The lower control arm supports 3 are elongated, with "T" shaped connecting structures 10 at both ends, which are respectively connected to the bottom of the two fixing flanges 2. The two lower control arm supports 3 are arranged side by side.

[0026] Furthermore, the upper control arm support 1 is provided with an upper cross arm connecting bracket 8; the upper cross arm connecting bracket 8 is provided with a connecting hole 4;

[0027] The lower control arm support 3 is provided with a lower cross arm connecting bracket 12;

[0028] The fixed flange 2 has a hole in the middle for connecting to the transmission box bridge hole 15.

[0029] This embodiment adopts a frame structure. The subframe is connected to the vehicle body via an upper control arm support 1, which is Y-shaped with three intersecting surfaces. Two surfaces connect to the vehicle body at a 135° angle to the vehicle floor and have connection holes 5 on them, allowing it to withstand significant forces when the vehicle is subjected to lateral loads. The other surface of the upper control arm support 1 connects to a fixed flange. The upper crossarm connecting bracket 8 is designed on the upper control arm support 1 and connects to the upper crossarm via upper threaded holes 4, capable of withstanding significant forces from the upper crossarm. The lower control arm support 3 has T-shaped connecting structures 10 on both sides for connecting to the fixed flange 2.

[0030] A rectangular slot 14 is formed on the fixed flange 2. The rectangular slot 14 is inserted into the "T"-shaped connecting structure 10 on the lower control arm support 3. The "T"-shaped structure can withstand the steering force and axial force from the wheel. Since there are lower control arms on both sides of the vehicle, the lower control arm connecting seats 12 on both sides are designed on the lower control arm support 3 as an integrated structure. They are connected to the lower control arms through the lower threaded holes 6. In this way, the forces from both sides of the lower control arms can cancel each other out, improving the vehicle's resistance to deformation. A connecting hole 11 is formed on the lower control arm support 3 so that the transmission box can be fixed on the subframe. The fixed flange 2 is mainly used to connect the transmission box axle hole 15. As the main force transmitter, the transmission box axle hole 15 is subjected to a large force. Therefore, the fixed flange 2 is made of armor steel. The fixed flange 2 is welded together with the lower control arm support 3. The upper part of the fixed flange 2 is provided with a connection hole 13. During assembly, it is connected to the upper control arm support 1 by bolts. The upper control arm support 1 has a nut slot 9. During assembly, the nut is inserted into the slot and the bolt is inserted from the outside and tightened, which facilitates assembly.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A subframe structure for use in special vehicles, characterized in that, It includes two upper control arm supports (1), two lower control arm supports (3), and two fixed flanges (2). The upper control arm support (1) has a "Y" shaped cross section. Its two top surfaces are at 135° to fit against the vehicle floor, and its bottom surface is connected to the top of one of the fixed flanges (2). The two upper control arm supports (1) are symmetrically arranged, and the two fixed flanges (2) are fixed to the corresponding upper control arm supports (1). The lower control arm support (3) is long and strip-shaped, with "T" shaped connecting structures (10) at both ends, which are connected to the bottom of the two fixed flanges (2). The two lower control arm supports (3) are arranged side by side.

2. The subframe structure applied to special vehicles as described in claim 1, characterized in that, An upper cross arm connecting bracket (8) is provided on the upper control arm support (1).

3. The subframe structure applied to special vehicles as described in claim 2, characterized in that, The upper control arm support (1) and the upper cross arm connecting bracket (8) are an integrated structure.

4. The subframe structure applied to special vehicles as described in claim 3, characterized in that, The upper cross arm connecting bracket (8) is provided with a connecting hole.

5. The subframe structure applied to special vehicles as described in claim 1, characterized in that, The lower control arm support (3) is provided with a lower cross arm connecting bracket (12).

6. The subframe structure for use on special vehicles as described in claim 5, characterized in that, The lower control arm support (3) and the lower cross arm connecting bracket (12) are an integrated structure.

7. The subframe structure applied to special vehicles as described in claim 1, characterized in that, The fixed flange (2) has a hole in the middle for connecting the transmission box bridge hole.

8. The subframe structure applied to special vehicles as described in claim 1, characterized in that, The lower control arm support (3) has a connecting hole in the middle for fixing the transmission box.

9. The subframe structure applied to special vehicles as described in claim 1, characterized in that, The fixed flange (2) is made of armor steel.

10. The subframe structure applied to special vehicles as described in claim 1, characterized in that, The lower part of the fixed flange (2) is welded to the lower control arm support (3), and the upper part is connected to the upper control arm support by bolts.

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