Square u-shaped wire under type rear axle mounting structure

Abstract

The utility model belongs to the technical field of rear axle bridge pipe connection, specifically relates to a square U type silk under -mounting type rear axle mounting structure, include: leaf spring, it is composed of several alloy spring piece, rear axle bridge pipe, it is in the braking process and vehicle suspension system cooperation effect, connecting assembly is used for fixing rear axle bridge pipe below leaf spring, the utility model discloses through rigid connection ensures that the load has no loss transmission, effectively restrained the axial rotation of rear axle bridge pipe when high -speed brake, thereby increase the braking effect of vehicle, to prolong its effective brake distance, and adjust the structure of mounting part, to promote the installation efficiency of square U type silk, has guaranteed the convenient of dismounting.

Description

Technical Field

[0001] This utility model belongs to the technical field of rear axle tube connection, specifically relating to a square U-shaped wire under-mounted rear axle installation structure. Background Technology

[0002] During braking, the rear axle plays multiple crucial roles. It not only transmits braking force, translating the driver's braking command from pressing the brake pedal into deceleration of the wheels; it also bears the braking torque, ensuring vehicle stability during braking; and simultaneously assists the parking brake system in ensuring reliable parking after the vehicle has come to a complete stop. The rear axle is equipped with braking devices. When the driver presses the brake pedal, the braking system transmits braking force to the brakes on the rear axle, which then act on the rear wheels, causing them to decelerate or stop rotating. In this process, the rear axle, as the key hub for transmitting braking force, ensures that the braking force is applied accurately and promptly to the wheels, achieving smooth deceleration or stopping of the vehicle.

[0003] Typically, the rear axle tube is directly fixed to the leaf spring using U-bolts. During high-speed braking, the rear axle itself may rotate slightly due to the braking torque. This rotation can cause a slight deviation in the transmission of braking force, thus affecting the vehicle's braking efficiency and increasing the effective braking distance. In existing technology, some have proposed replacing the round rear axle tube with a square one to suppress this rotation. However, square tubes suffer from stress concentration issues, resulting in a significant decrease in load-bearing capacity and compressive strength compared to round tubes. Furthermore, the manufacturing process for square tubes is more complex, leading to a significant increase in production costs. Utility Model Content

[0004] The purpose of this utility model is to provide a U-shaped wire under-mounted rear axle mounting structure, including: A leaf spring is composed of several alloy spring plates; The rear axle tube works in conjunction with the vehicle's suspension system during braking; A connecting assembly for securing the rear axle tube to the underside of the leaf spring.

[0005] Preferably, the connecting assembly includes a bridge tube connector, a square U-shaped wire, a leaf spring support pad, and a five-hole pressure plate.

[0006] Preferably, the bridge tube connector is divided into a connecting section and a limiting section; the connecting section is a planar structure, and its bottom is welded to the arc-shaped concave surface of the leaf spring; the limiting section is disposed on both sides of the connecting section, including an arc-shaped groove and an arc-shaped protrusion connected thereto.

[0007] Preferably, the square U-shaped wire passes sequentially through the bridge tube connector, the leaf spring, the leaf spring support pad, and both sides of the rear axle tube, and is tightened in conjunction with the five-hole pressure plate.

[0008] Preferably, the top of the leaf spring support pad is provided with two parallel limiting strips, the arc-shaped convex surface of the leaf spring is embedded between the two limiting strips and abuts against the top of the leaf spring support pad; the bottom of the leaf spring support pad is provided with an arc-shaped groove, the arc-shaped groove fits with the outer surface of the rear axle tube and is connected by welding.

[0009] Preferably, one side of the five-hole pressure plate is a bonding surface, which is an arc-shaped surface that matches the curvature of the rear axle tube surface; the surface of the five-hole pressure plate is provided with a square hole that runs through the front and rear.

[0010] The beneficial effects of this utility model are: By tightly fitting the bottom connector of the axle tube in the connecting assembly to the rear axle tube, and by having U-shaped wires pass sequentially through the axle tube connector, leaf spring, leaf spring support pad, and both sides of the rear axle tube, and then tightened in conjunction with the five-hole pressure plate, this multi-component tight connection forms a stable overall structure. This avoids the rear axle tube from rotating due to uneven contact surfaces or gaps, thus preventing brake force dispersion and energy loss. It ensures the integrity and stability of brake force transmission, allowing the braking system to respond more quickly to braking commands, improving braking efficiency, and extending the effective braking distance.

[0011] The special shape of the bridge tube connector allows the square U-shaped wire to be firmly secured to the surface of the leaf spring. Furthermore, its arc-shaped groove and the arc-shaped protrusion that connect with it can accommodate square U-shaped wires of different thicknesses, facilitating the rapid installation of the entire structure and making maintenance and replacement easier.

[0012] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0013] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1This is a schematic diagram of the overall structure of an embodiment of this utility model; Figure 2 This is a schematic diagram of the installation of the connection components according to an embodiment of this utility model; Figure 3 This is a structural schematic diagram of the bridge tube connector according to an embodiment of the present invention.

[0016] In the picture: 1. Leaf spring, 2. Rear axle tube, 3. Connecting assembly, 4. Axle tube connector, 5. Square U-shaped wire, 6. Leaf spring support pad, 7. Five-hole pressure plate, 8. Connecting section, 9. Limiting section, 10. Arc groove, 11. Arc protrusion, 12. Limiting strip, 13. Arc groove, 14. Fitting surface. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] like Figures 1 to 3 As shown, this embodiment provides a U-shaped wire under-mounted rear axle mounting structure, including: a leaf spring 1, which is composed of several alloy spring plates; a rear axle tube 2, which works in conjunction with the vehicle suspension system during braking; and a connecting assembly 3, which is used to fix the rear axle tube 2 under the leaf spring 1.

[0019] In this embodiment, the connecting assembly 3 includes a bridge tube connector 4, two square U-shaped wires 5, a leaf spring support pad 6, and a five-hole pressure plate 7. The square U-shaped wires 5 pass sequentially through the bridge tube connector 4, the leaf spring 1, the leaf spring support pad 6, and both sides of the rear axle tube 2, and are tightened in conjunction with the five-hole pressure plate 7 to achieve a fixed overall installation. This tight connection of multiple components forms a stable overall structure. It avoids the dispersion of braking force and energy loss caused by uneven contact surfaces or gaps, ensuring the integrity and stability of braking force transmission, allowing the braking system to respond more quickly to braking commands and improving braking efficiency. During braking, the vehicle generates significant inertial force and braking torque. A stable connection prevents displacement or loosening of the rear axle tube relative to the leaf spring, ensuring that braking force is always accurately transmitted to the wheels along the predetermined path, avoiding braking force deviation caused by unstable connections, thereby improving braking accuracy and reliability.

[0020] The bridge tube connector 4 is divided into a connecting section 8 and a limiting section 9. The connecting section 8 is a planar structure, and its bottom is welded to the arc-shaped concave surface of the leaf spring 1. The limiting section 9 is located on both sides of the connecting section 8 and includes an arc-shaped groove 10 and an arc-shaped protrusion 11 connected thereto. In the existing technology of the leaf spring 1 and rear axle bridge tube 2 mounting components without the bridge tube connector 4, the square U-shaped wire 5 is in direct contact with the leaf spring 1. Because the surface of the leaf spring 1 has sharp edges, the square U-shaped wire 5 will slide relative to it and cannot be properly fixed. However, after adding the bridge tube connector 4, the arc-shaped parts of the two square U-shaped wires 5 can be inserted into the arc-shaped grooves 10 on both sides to fix them. Figure 3 As shown in the magnified structure, the arc-shaped groove 10 and the arc-shaped protrusion 11 connected thereto are connected by a smooth arc-shaped line. Therefore, the thickness of the U-shaped wire used can vary appropriately, making it easier to find replacement parts during emergency repairs and replacements, thus effectively improving the efficiency of repair and disassembly.

[0021] The top of the leaf spring support pad 6 is provided with two parallel limiting strips 12. The width of the leaf spring 1 is exactly the same as the distance between the two limiting strips 12, so that the arc-shaped convex surface can be just embedded between the two limiting strips 12 and abut against the top of the leaf spring support pad 6, thus restricting the left and right swaying of the leaf spring 1 during braking. The bottom of the leaf spring support pad 6 is provided with an arc-shaped groove 13. The arc-shaped groove 13 fits with the outer surface of the rear axle tube 2 and is connected by welding to enhance the connection effect, so that the rear axle tube 2 and the arc-shaped groove 13 cannot slide relative to each other.

[0022] One side of the five-hole pressure plate 7 is a mating surface 14, which is an arc-shaped surface that matches the curvature of the rear axle tube 2. The surface of the five-hole pressure plate 7 has a square hole that runs through the front and rear. The square hole reduces the overall weight and makes it easy for installers to weld the mating surface 14 to the rear axle tube 2. Combined with the bolt connection with the square U-shaped wire, the overall stability is optimized, effectively preventing the relative rotation of the rear axle tube 2 during braking.

[0023] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0024] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A U-shaped wire under-mounted rear axle mounting structure, characterized in that, include: A leaf spring (1) is composed of several alloy spring plates; The rear axle tube (2) works in conjunction with the vehicle suspension system during braking; A connecting assembly (3) is used to fix the rear axle tube (2) to the underside of the leaf spring (1); The connecting assembly (3) includes a bridge tube connector (4), a square U-shaped wire (5), a leaf spring support pad (6), and a five-hole pressure plate (7). The bridge tube connector (4) is divided into a connecting section (8) and a limiting section (9); the connecting section (8) is a planar structure, and its bottom is welded to the arc-shaped concave surface of the leaf spring (1); the limiting section (9) is located on both sides of the connecting section (8), including an arc-shaped groove (10) and an arc-shaped protrusion (11) connected thereto. The square U-shaped wire (5) passes through the bridge tube connector (4), the leaf spring (1), the leaf spring support pad (6) and the rear axle tube (2) in sequence, and is tightened in conjunction with the five-hole pressure plate (7).

2. The U-shaped wire under-mounted rear axle mounting structure according to claim 1, characterized in that: The top of the leaf spring support pad (6) is provided with two parallel limiting strips (12), and the arc-shaped convex surface of the leaf spring (1) is embedded between the two limiting strips (12) and abuts against the top of the leaf spring support pad (6); the bottom of the leaf spring support pad (6) is provided with an arc-shaped groove (13), and the arc-shaped groove (13) fits with the outer surface of the rear axle tube (2) and is connected by welding.

3. The U-shaped wire under-mounted rear axle mounting structure according to claim 2, characterized in that: One side of the five-hole pressure plate (7) is a bonding surface (14), which is an arc-shaped surface that matches the arc of the rear axle tube (2); the surface of the five-hole pressure plate (7) is provided with a square hole that runs through the front and back.

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