Split compression type ball pin and its stabilizer rod connecting rod assembly

Abstract

This utility model discloses a split press-fit ball pin and its stabilizer bar connecting rod assembly, including: a ball pin component and a ball pin component, the ball pin component being open at both ends and hollow inside; the lower end of the ball pin component and the ball pin component are press-fitted together, and a tenon-and-mortise connection is formed between the outer periphery of the lower end of the ball pin component and the inner wall of the ball pin component; after the lower end of the ball pin component is press-fitted into the ball pin component, the end of the lower end of the ball pin component is turned outward to the edge of the lower end opening of the ball pin component; the ball pin component is a press-fit mandrel, which is used in the stabilizer bar connecting rod assembly, the stabilizer bar connecting rod assembly including a welded part, a press-fit mandrel, a plastic ball seat, a dust cover, a retaining ring, and a sealing plate; this utility model simplifies the processing technology and improves the assembly convenience through a split design, while ensuring connection strength and flexibility and reducing maintenance costs; its ball head and ball socket are manufactured independently, and the optimal materials and processes can be selected for each, avoiding the processing limitations of one-piece molding.

Description

Technical Field

[0001] This utility model relates to the field of automotive suspension systems, and in particular to a split press-fit ball pin and its stabilizer bar connecting rod assembly. Background Technology

[0002] In fields such as mechanical engineering, automobile manufacturing, and furniture hardware, ball pins are key components for achieving universal rotational connections between parts.

[0003] Traditional club joints are mostly one-piece molded structures (such as the clubhead and shaft being forged or cast as a single piece), which has the following drawbacks:

[0004] (1) The precise fit between the ball head and the socket is difficult to form with a single mold, resulting in high processing costs and long processing time;

[0005] (2) Overall heat treatment is prone to deformation, which affects the fitting accuracy;

[0006] (3) If a component is damaged, the entire component needs to be replaced, resulting in high maintenance costs;

[0007] (4) For complex working conditions (such as high load and dusty environment), the sealing and wear resistance of the integrated structure are insufficient.

[0008] Therefore, there is an urgent need for a split ball pin structure that is easy to process, maintain, and has high reliability. Utility Model Content

[0009] The main objective of this invention is to provide a split press-fit ball pin and its stabilizer rod assembly to address the aforementioned problems in the prior art, thereby solving all or one of the aforementioned problems in the prior art.

[0010] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0011] On the one hand, a split press-fit ball pin and its stabilizer rod assembly are provided, including:

[0012] A cue stick assembly and a ball assembly, wherein the ball assembly is open at both ends and hollow inside;

[0013] The lower end of the cue stick component is press-fitted to the ball component, and a tenon-and-mortise connection is formed between the outer periphery of the lower end of the cue stick component and the inner wall of the ball component;

[0014] After the lower end of the cue stick component is pressed into the ball ball component, the end of the lower end of the cue stick component is turned outward to the edge of the lower opening of the ball ball component.

[0015] As an improved solution, the cue component includes: a cylindrical shaft portion, a transition step, and a columnar connecting portion;

[0016] The cylindrical rod portion is vertically arranged;

[0017] The transition step is coaxially connected to the lower end of the cylindrical rod, and the diameter of the transition step is larger than the diameter of the cylindrical rod.

[0018] The columnar connecting part is coaxially connected to the lower end of the transition step, and the outer surface of the columnar connecting part is provided with an annular groove arranged circumferentially.

[0019] As an improvement, the surface of the columnar connector is polished or hardened.

[0020] As an improved solution, the ball-shaped component includes: a bead-shaped body;

[0021] The bead-shaped body is hollow inside, and the radius of curvature of the bead-shaped body matches that of the columnar connecting part;

[0022] The inner wall of the bead-shaped body is provided with a spherical groove that matches the annular groove.

[0023] As an improved solution, the bead-shaped body and the columnar connecting part are press-fitted together;

[0024] The press-fit connection includes: the columnar connecting part is pressed vertically into the upper opening of the bead-shaped body until the columnar connecting part is completely embedded in the bead-shaped body.

[0025] As an improved solution, the diameter at the lower end of the columnar connector is smaller than the diameter of the main body of the columnar connector;

[0026] After the press-fit connection, the lower end of the columnar connecting part is turned outward to the edge of the bottom opening of the bead-shaped main body.

[0027] As an improved solution, after the press-fit connection, the mortise and tenon connection is formed between the spherical groove and the annular groove.

[0028] As an improved solution, the upper outer surface of the cylindrical rod is provided with external threads or a smooth cylindrical surface.

[0029] As an improved solution, the upper end of the transition step is provided with a step groove arranged along the axial direction of the transition step near the cylindrical rod.

[0030] On the other hand, a stabilizer bar assembly is provided, including the aforementioned split press-fit ball pin.

[0031] As an improved solution, the ball joint component of the split press-fit ball pin is a press-fit mandrel; the press-fit mandrel is used in the stabilizer bar assembly;

[0032] The stabilizer bar assembly also includes: a welded component, the press-fit mandrel, a plastic ball seat, a dust cover, a retaining ring, and a sealing plate.

[0033] The beneficial effects of this utility model are: the modular design simplifies the processing technology, improves assembly convenience, and ensures connection strength and flexibility while reducing maintenance costs; the ball head and ball socket are manufactured independently, allowing for the selection of optimal materials and processes, avoiding the processing limitations of one-piece molding; at the same time, damaged parts can be replaced individually without the need for overall scrapping, and the press-fit structure supports quick disassembly and assembly, improving on-site maintenance efficiency. Attached Figure Description

[0034] Figure 1 This is a perspective view of a split press-fit ball pin in Embodiment 1 of this utility model when it is not press-fitted.

[0035] Figure 2 This is a perspective view of a split press-fit ball pin in Embodiment 1 of this utility model after press-fitting, viewed from the front.

[0036] Figure 3 This is a front view structural schematic diagram of the ball bead component in a split press-fit ball pin according to Embodiment 1 of this utility model;

[0037] The components in the attached diagram are labeled as follows:

[0038] 1. Cylindrical rod; 2. Transition step; 3. Columnar connector; 4. Bead-shaped main body; 5. Annular groove; 6. Step groove. Detailed Implementation

[0039] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 are not intended to 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.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0045] Example 1, please refer to Figures 1-3 This utility model discloses a split press-fit ball pin, comprising:

[0046] Cue components, including:

[0047] The cylindrical rod 1 has an external thread or a smooth cylindrical surface at one end;

[0048] A transition step 2 is provided at the other end of the rod, and a columnar connecting part 3 is coaxially connected to its lower end;

[0049] The columnar connecting part 3 has a polished or hardened surface and an annular groove 5 arranged circumferentially on its outer surface for installing ball components;

[0050] Specifically, the cylindrical rod 1, the transition step 2, and the cylindrical connecting part 3 are designed as a single unit;

[0051] Ball component, including:

[0052] The bead-shaped main body 4 has the same radius of curvature as the columnar connecting part 3. The inner wall is provided with a spherical groove that matches the columnar connecting part 3. The central part is hollow, and the top and bottom are provided with corresponding openings.

[0053] Specifically, the bead-shaped main body 4 and the columnar connecting part 3 are connected by a press-fit method, that is, the columnar connecting part 3 of the cue stick component is pressed vertically into the opening above the bead-shaped main body 4 of the ball component, so that the columnar connecting part 3 is completely embedded in the spherical groove. The diameter of the lower end of the columnar connecting part 3 is smaller than the diameter of its main body. After the press-fit connection, based on the shape limit inside the bead-shaped main body 4, the lower end of the columnar connecting part 3 is turned outward to the edge position of the bottom opening of the bead-shaped main body 4, thereby achieving a fixed connection. At the same time, the bead-shaped main body 4 and the columnar connecting part 3 are prevented from falling off by the cooperation of the annular groove 5 and the spherical groove.

[0054] Specifically, the cue stick and ball components can be manufactured independently, and the cue stick can be hardened and the ball component can be plated with hard chrome, thus avoiding the processing limitations of one-piece molding.

[0055] Example 2, based on the same inventive concept as the split press-fit ball pin described in Example 1 of this utility model, provides a stabilizer bar connecting rod assembly, including: the split press-fit ball pin described in Example 1;

[0056] Specifically, the ball rod component of the split press-fit ball pin is a press-fit mandrel;

[0057] The press-fit mandrel is used in the stabilizer bar connecting rod assembly;

[0058] The stabilizer bar assembly also includes: a welded component, the press-fit mandrel, a plastic ball seat, a dust cover, a retaining ring, and a sealing plate.

[0059] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A split-type press-fit ball pin, characterized in that, include: A cue stick assembly and a ball assembly, wherein the ball assembly is open at both ends and hollow inside; The lower end of the cue stick component is press-fitted to the ball component, and a tenon-and-mortise connection is formed between the outer periphery of the lower end of the cue stick component and the inner wall of the ball component; After the lower end of the cue stick component is pressed into the ball ball component, the end of the lower end of the cue stick component is turned outward to the edge of the lower opening of the ball ball component.

2. The split press-fit ball pin according to claim 1, characterized in that: The cue component includes: a cylindrical shaft (1), a transition step (2), and a columnar connecting part (3); The cylindrical rod (1) is set vertically; The transition step (2) is coaxially connected to the lower end of the cylindrical rod (1), and the diameter of the transition step (2) is larger than the diameter of the cylindrical rod (1). The columnar connecting part (3) is coaxially connected to the lower end of the transition step (2), and the outer surface of the columnar connecting part (3) is provided with an annular groove (5) arranged along its circumference.

3. The split press-fit ball pin according to claim 2, characterized in that: The surface of the columnar connector (3) is polished or hardened.

4. The split press-fit ball pin according to claim 2, characterized in that: The ball component includes: a bead-shaped body (4); The bead-shaped body (4) is hollow inside, and the radius of curvature of the bead-shaped body (4) matches that of the columnar connecting part (3); The inner wall of the bead-shaped body (4) is provided with a spherical groove that matches the annular groove (5).

5. The split press-fit ball pin according to claim 4, characterized in that: The bead-shaped main body (4) and the columnar connecting part (3) are press-fitted together; The press-fit connection includes: the columnar connecting part (3) is pressed vertically into the upper opening of the bead-shaped body (4) until the columnar connecting part (3) is completely embedded in the bead-shaped body (4).

6. The split press-fit ball pin according to claim 5, characterized in that: The diameter at the lower end of the columnar connecting part (3) is smaller than the diameter of the main body of the columnar connecting part (3); After the press-fit connection, the lower end of the columnar connecting part (3) is turned outward to the edge of the bottom opening of the bead-shaped body (4).

7. The split press-fit ball pin according to claim 5, characterized in that: After the press-fit connection is completed, the mortise and tenon connection is formed between the spherical groove and the annular groove (5).

8. The split press-fit ball pin according to claim 2, characterized in that: The upper outer surface of the cylindrical rod (1) is provided with external threads or a smooth cylindrical surface; The upper end of the transition step (2) near the cylindrical rod (1) is provided with a step groove (6) arranged along the axial direction of the transition step (2).

9. A stabilizer bar linkage assembly, characterized in that, Includes the split press-fit ball pin as described in any one of claims 1 to 8.

10. The stabilizer bar linkage assembly according to claim 9, characterized in that: The ball rod component of the split press-fit ball pin is a press-fit mandrel; The press-fit mandrel is used in the stabilizer bar connecting rod assembly; The stabilizer bar assembly also includes: a welded component, the press-fit mandrel, a plastic ball seat, a dust cover, a retaining ring, and a sealing plate.

Images