High-strength stabilizer bar assembly

Abstract

The utility model provides a high-strength stabilizer bar assembly, and belongs to the technical field of automobile accessories. The stabilizer bar assembly solves the problem that an existing stabilizer bar assembly is inconvenient to disassemble and assemble. The high-strength stabilizer bar assembly comprises two stabilizer bar bases, stabilizer bar bodies are welded to the opposite sides of the front stabilizer bar base and the rear stabilizer bar base, connecting flanges are welded to the inner sides of the stabilizer bar bodies, high-strength bolts are installed between the front connecting flange and the rear connecting flange, and ball heads are installed in inner cavities of the stabilizer bar bases. The outer sides of the front ball head and the rear ball head penetrate through the stabilizer bar base and are welded with a pin rod and a connecting rod correspondingly, the end of the pin rod is sleeved with a lining body, and convex teeth are formed in the top of the outer surface of the pin rod. The connecting rod has a limiting function, the self-locking teeth are additionally arranged between the lining and the rod body, axial displacement is prevented, and replacement operation and rigidity adjustment are facilitated due to the design of the sectional connecting rod.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, and specifically relates to a high-strength stabilizer bar assembly. Background Technology

[0002] Vehicle suspension is the collective term for all force-transmitting connection devices between the car frame and the axle. The stabilizer bar assembly is an important component of the vehicle suspension, and its main function is to reduce body roll during cornering or driving, thereby improving vehicle handling stability and ride comfort.

[0003] For example, Chinese patent literature discloses a stabilizer bar connecting rod assembly and an automobile [Application No.: 202222954730.8; Authorization Announcement No.: CN219382141U], which includes a connecting rod body and a ball joint portion connected to the connecting rod body; the connecting rod body includes a connecting rod portion and a mounting portion integrally formed at the end of the connecting rod portion, the mounting portion having a mounting groove for assembling the ball joint portion; the ball joint portion includes a cup portion and a ball head pin partially assembled in the cup portion; the outer wall of the cup portion... It is designed to abut against the inner wall of the mounting groove; the mounting groove passes through the mounting part, and the bottom of the mounting part is detachably provided with a snap-fit ​​part; the edge ring of the snap-fit ​​part is provided with multiple mounting buckles that can engage with the mounting part, and the inner wall ring of the mounting groove is provided with multiple reinforcing ribs, which are staggered with the mounting buckles in the circumferential direction; the ball head pin includes a ball head and a pin rod connected to the ball head, and the side wall ring of the pin rod is provided with a flange part; the ball head is assembled in the ball cup part; the pin rod has a part inside the ball cup part, and the outer wall of the ball head is fully in contact with the inner wall of the ball cup part.

[0004] The stabilizer bar assembly described above has been modified by forging the ball joint and connecting rod into a single piece. This is intended to reduce errors caused by welding, improve product consistency, and avoid fatigue fracture caused by stress concentration and long-term torsional oscillation at the weld. However, the surface of the bushing mounting on the stabilizer bar assembly lacks a self-locking structure. This leads to gaps at the connection after prolonged use, causing axial displacement of the bushing and affecting its performance, resulting in poorer damping and shock absorption. Furthermore, the connecting rod between the two ball joints is a single piece, requiring the entire stabilizer bar assembly to be disassembled for replacement. This is time-consuming and labor-intensive, and the stiffness of the connecting rod cannot be adjusted. Summary of the Invention

[0005] The purpose of this utility model is to address the aforementioned problems in the prior art by providing a high-strength stabilizer assembly with a limiting function, a self-locking tooth between the bushing and the rod to prevent axial displacement, and a segmented connecting rod design that facilitates replacement, operation, and stiffness adjustment.

[0006] The objective of this utility model can be achieved through the following technical solution: a high-strength stabilizer bar assembly, comprising stabilizer bar bases, wherein there are two stabilizer bar bases, and stabilizer bar bodies are welded to opposite sides of the front and rear stabilizer bar bases. A connecting flange is welded to the inner side of the stabilizer bar body, and a high-strength bolt is installed between the front and rear connecting flanges. A ball head is installed in the inner cavity of the stabilizer bar base, and a pin and a connecting rod are welded to the outer sides of the front and rear ball heads, respectively. A bushing body is fitted onto the end of the pin, and a tooth is formed on the top of the outer surface of the pin.

[0007] This high-strength stabilizer bar assembly mainly consists of a stabilizer bar base, bushing body, pin, toothed rod, connecting flange, stabilizer bar body, high-strength bolts, and helical grooves. The stabilizer bar base, bushing body, pin, toothed rod, connecting flange, stabilizer bar body, high-strength bolts, and helical grooves provide a limiting function. Self-locking teeth are added between the bushing and the bar body to prevent axial displacement. The segmented connecting rod design facilitates replacement and stiffness adjustment.

[0008] In the aforementioned high-strength stabilizer bar assembly, a cup is fitted onto the bottom of the outer surface of the ball head, and a base plate is installed at the bottom of the inner cavity of the stabilizer bar base. In practical applications, the cup facilitates the installation and positioning of the ball head, allowing it to rotate within it. The base plate secures and limits the bottom of the cup while simultaneously sealing the bottom of the stabilizer bar base.

[0009] In the aforementioned high-strength stabilizer bar assembly, a dust cover is fitted onto the outer surface of the stabilizer bar base. A flat retaining ring is clamped between the inner side of the outer surface of the dust cover and the stabilizer bar base, and a round retaining ring is clamped between the outer side of the outer surface of the dust cover and the end bar of the ball joint. In practical applications, by providing a dust cover, rainwater and dust can be prevented from entering the stabilizer bar base. The round and flat retaining rings facilitate the tightening and fixing of the upper and lower ends of the dust cover, and also make the installation and removal of the dust cover more convenient.

[0010] In the aforementioned high-strength stabilizer bar assembly, the connecting rod surface is provided with two mounting holes. In practical applications, these mounting holes facilitate the insertion and installation of knurled bolts.

[0011] In the aforementioned high-strength stabilizer assembly, a knurled head bolt is installed through the inner cavity of the mounting hole, and a self-locking nut is fitted onto the threaded surface of the knurled head bolt. In practical applications, by using the knurled head bolt and self-locking nut, the connecting rod can be easily fixedly connected to the external structure, while also providing a self-locking function to prevent slippage.

[0012] In the aforementioned high-strength stabilizer bar assembly, the inner cavity of the bushing body is provided with a helical groove, and the number of high-strength bolts is several.

[0013] Compared with existing technologies, the advantages of this high-strength stabilizer assembly are: it has a limiting function during operation, a self-locking tooth is added between the bushing and the rod to prevent axial displacement, and the segmented connecting rod design facilitates replacement and stiffness adjustment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a high-strength stabilizer bar assembly.

[0015] Figure 2 This is a right-side sectional view of the high-strength stabilizer bar assembly.

[0016] Figure 3 This is a bottom sectional view of the high-strength stabilizer bar assembly.

[0017] Figure 4 This is a cross-sectional axonometric view of the bushing body of this high-strength stabilizer bar assembly.

[0018] In the diagram: 1. Stabilizer base; 2. Flat retaining ring; 3. Round retaining ring; 4. Round head knurled bolt; 5. Self-locking nut; 6. Connecting rod; 7. Dust cover; 8. Bushing body; 9. Pin; 10. Raised tooth; 11. Ball cup; 12. Base plate; 13. Ball head; 14. Connecting flange; 15. Stabilizer body; 16. High-strength bolt; 17. Mounting hole; 18. Spiral groove. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this high-strength stabilizer bar assembly includes two stabilizer bar bases 1. A stabilizer bar body 15 is welded to one side of each of the front and rear stabilizer bar bases 1. The stabilizer bar body 15 has a thickened middle section and tapered ends, with a central diameter of 30mm that linearly tapers to 20mm at both ends. The transition area uses a rounded transition (R50mm) to reduce stress concentration. A connecting flange 14 is welded to the inner side of the stabilizer bar body 15. High-strength bolts 16 are installed between the front and rear connecting flanges 14. A ball head 13 is installed inside the stabilizer bar base 1. The outer sides of the front and rear ball heads 13 penetrate the stabilizer bar base 1 and are respectively welded with pins 9 and connecting rods 6. A bushing body 8 is fitted onto the end of the pin 9, and a tooth 10 is formed on the top of the outer surface of the pin 9.

[0021] To elaborate further, a ball cup 11 is fitted onto the bottom of the outer surface of the ball head 13, and a base plate 12 is installed at the bottom of the inner cavity of the stabilizer base 1; a dust cover 7 is fitted onto the outer surface of the stabilizer base 1, and a flat retaining ring 2 is clamped between the inner side of the outer surface of the dust cover 7 and the stabilizer base 1, and a round retaining ring 3 is clamped between the outer side of the outer surface of the dust cover 7 and the end rod of the ball head 13.

[0022] The connecting rod 6 has two mounting holes 17 on its surface. A round-head knurled bolt 4 is installed through the inner cavity of the mounting hole 17, and a self-locking nut 5 is threaded onto the surface of the round-head knurled bolt 4. The bushing body 8 has a spiral groove 18 in its inner cavity, and several high-strength bolts 16 are present.

[0023] In actual manufacturing, by opening protruding teeth 10 on the surface of the pin 9, it can engage with the spiral groove 18 on the inner wall when installing the bushing body 8, so that the pin 9 and the bushing body 8 form a self-locking connection. This can prevent axial displacement of the bushing body 8 after long-term use and ensure the performance of the bushing body 8. The stabilizer body 15 between the two stabilizer bases 1 is a segmented design. The connecting flanges 14 at both ends are connected by high-strength bolts 16. In this way, when it is necessary to replace the parts on one side, it is only necessary to remove the high-strength bolts 16 in the middle to complete the segmented disassembly. It is not necessary to disassemble the entire stabilizer assembly, which reduces the workload and makes replacement convenient. The connection between the connecting flanges 14 and the stabilizer body 15 is made by controlling the preload between the segments by the tightness of the high-strength bolts 16. The greater the preload, the smaller the micro-slip at the connection, the higher the overall stiffness, and the easier it is to adjust the stiffness.

[0024] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A high-strength stabilizer bar assembly, comprising a stabilizer bar base (1), characterized in that: There are two stabilizer bases (1). A stabilizer body (15) is welded to one side of each of the front and rear stabilizer bases (1). A connecting flange (14) is welded to the inside of the stabilizer body (15). A high-strength bolt (16) is installed between the front and rear connecting flanges (14). A ball head (13) is installed in the inner cavity of the stabilizer base (1). The outer sides of the front and rear ball heads (13) penetrate the stabilizer base (1) and are respectively welded with a pin (9) and a connecting rod (6). A bushing body (8) is sleeved on the end of the pin (9). A tooth (10) is opened on the top of the outer surface of the pin (9).

2. The high-strength stabilizer bar assembly according to claim 1, characterized in that: A ball cup (11) is fitted on the bottom of the outer surface of the ball head (13), and a base plate (12) is installed at the bottom of the inner cavity of the stabilizer base (1).

3. The high-strength stabilizer bar assembly according to claim 1, characterized in that: The outer surface of the stabilizer base (1) is fitted with a dust cover (7), and a flat retaining ring (2) is clamped between the inner side of the outer surface of the dust cover (7) and the stabilizer base (1), and a round retaining ring (3) is clamped between the outer side of the outer surface of the dust cover (7) and the end rod of the ball head (13).

4. A high-strength stabilizer bar assembly according to claim 1, characterized in that: The connecting rod (6) has two mounting holes (17) on its surface.

5. A high-strength stabilizer bar assembly according to claim 4, characterized in that: A round-head knurled bolt (4) is installed through the inner cavity of the mounting hole (17), and a self-locking nut (5) is threaded on the surface of the round-head knurled bolt (4).

6. A high-strength stabilizer bar assembly according to claim 1, characterized in that: The inner cavity of the bushing body (8) is provided with a spiral groove (18), and the number of high-strength bolts (16) is several.

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