Automobile ball cage retainer structure

Abstract

The utility model discloses an automobile ball cage holder structure, which relates to the technical field of ball cages, and comprises a holder body, a plurality of groups of self-adaptive mechanisms are arranged in the inner circumference of the holder body in an array manner and are used for realizing tiny radial and axial floating of balls in a window, and each self-adaptive mechanism comprises a dismounting unit and an adjusting unit, the adjusting unit is arranged in the dismounting and mounting unit and comprises a plurality of circular mounting cylinders, sliding plates are slidably mounted in the circular mounting cylinders, and the adjusting unit is arranged, the circular mounting cylinders, the sliding plates, sliding columns and balls are matched with elastic supporting of reset springs, so that the balls can slightly float in the window in the radial direction and the axial direction. According to the dynamic buffering mechanism, traditional rigid contact is converted into flexible contact, local stress under the high-speed and large-angle steering or vibration working condition is effectively dispersed, the problems of material fatigue, fretting wear and peeling caused by stress concentration are avoided, and therefore the durability and reliability of the retainer are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of ball cage technology, specifically to a ball cage cage structure for automobiles. Background Technology

[0002] The CV joint, also known as a constant velocity joint, is an important component in a car's transmission system. Its function is to transmit the engine's power from the transmission to the drive wheels, enabling the car to travel at high speeds.

[0003] According to the patent titled "A Ball Cage Cage with a Long-Lasting Lubrication Structure" (Patent Publication No.: CN216382286U, Patent Publication Date: 2022-04-26), it includes several cage support blocks that are sequentially interlocked one end to the other. The ball cage cage is mainly formed by several cage support blocks being sequentially interlocked one end to the other through connecting grooves and fixed by bolts. If a cage support block is damaged due to wear or other reasons during use, the damaged cage support block can be separated from the other parts and replaced with a new cage support block, without replacing the entire ball cage cage. The slight vibration generated during the operation of the ball can push the lubrication arc plate to move, so that the extrusion block can slide along the inside of the oil storage cavity and squeeze the oil storage sponge. The bristles can apply lubricating oil to the surface of the ball, reducing the friction between it and the ball movement groove, improving the service life of the ball cage cage, and also reducing the noise during the operation of the ball.

[0004] Based on the aforementioned existing technology, current automotive CV cage cage structures still have the following problems: the window edge of the traditional cage is a rigid structure, and the contact between the ball and the window edge is a hard contact. Under high-speed, large-angle steering or vibration conditions, local stress concentration is easily generated between the ball and the window edge, leading to material fatigue, fretting wear, or even spalling. Therefore, this utility model provides an automotive CV cage cage structure. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automotive ball cage cage structure that solves the following problems associated with existing automotive ball cage cage structures: the window edge of the traditional cage is a rigid structure, and the contact between the ball and the window edge is a hard contact. Under high-speed, large-angle steering or vibration conditions, local stress concentration is easily generated between the ball and the window edge, leading to material fatigue, fretting wear, or even spalling.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a car ball cage retainer structure, comprising a frame body, wherein the frame body has a plurality of adaptive mechanisms arranged in a circular array within its interior for realizing minute radial and axial floating of the balls within the window, the adaptive mechanisms comprising:

[0007] The disassembly and assembly unit is located inside the frame and is used to install the adjustment unit inside the frame;

[0008] The adjustment unit, located inside the disassembly unit, includes several circular mounting cylinders. A sliding plate is slidably mounted inside the circular mounting cylinder, and a sliding column is fixedly mounted at the bottom of the sliding plate. A ball is rotatably mounted at the bottom of the sliding column. By the sliding column and the ball floating up and down inside the circular mounting cylinder, the ball can achieve slight radial and axial floating within the window.

[0009] Preferably, a limiting ring is fixedly installed inside the bottom end of the circular mounting cylinder, and the sliding plate slides above the limiting ring to limit the movement position of the sliding plate.

[0010] Preferably, a return spring is installed inside the circular mounting cylinder, and the return spring is located above the sliding plate. The return spring pushes the sliding plate, the sliding column and the ball through its own elastic force, so that the ball is always located on the surface of the ball bearing.

[0011] Preferably, the adjustment unit further includes a fixing seat, and the fixing seat has a plurality of circular holes arranged in a circular array inside, and a circular mounting cylinder is fixedly installed inside the circular holes. T-shaped slots are provided on the inner side of the fixing seat near both sides.

[0012] Preferably, the disassembly and assembly unit includes several installation windows arranged in a circumferential array inside the frame, and the fixing seat slides into the interior of the installation window to realize the overall disassembly and replacement of the adaptive mechanism.

[0013] Preferably, T-shaped slots are provided on both sides of the installation window, and the T-shaped slots are connected to the T-shaped slots. T-shaped plugs are slidably inserted into the interior of the T-shaped slots and T-shaped slots, and the fixing base is fixed inside the installation window by means of the T-shaped plugs.

[0014] This utility model provides a ball joint cage structure for automobiles. Compared with the prior art, it has the following advantages:

[0015] Beneficial effects:

[0016] 1. This automotive ball cage structure, through the inclusion of an adjustment unit, utilizes a circular mounting cylinder, sliding plate, sliding column, and ball bearings, along with the elastic support of a return spring, to allow the ball bearings to achieve minute radial and axial floating within the cage window. This dynamic buffering mechanism transforms traditional rigid contact into flexible contact, effectively dispersing localized stress under high-speed, large-angle steering, or vibration conditions. This avoids material fatigue, fretting wear, and spalling caused by stress concentration, thereby significantly improving the cage's durability and reliability.

[0017] 2. This automotive CV joint cage structure features a modular design achieved through the combination of disassembly and assembly units, T-shaped inserts, T-shaped slots, and T-shaped recesses. This allows the adaptive mechanism to be independently disassembled and replaced. When a local component wears or is damaged, it is not necessary to replace the entire cage; only the corresponding module needs to be disassembled and replaced. This design significantly simplifies the maintenance process, reduces repair costs, and minimizes resource waste, aligning with efficient and sustainable manufacturing principles. Attached Figure Description

[0018] Figure 1 This is a frontal perspective view of the three-dimensional structure of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the frame of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 4 This is a partial cross-sectional, disassembled three-dimensional structural diagram of the present invention.

[0022] In the diagram: 1-Frame, 2-Adaptive mechanism, 21-Disassembly / assembly unit, 211-Installation window, 212-T-shaped slot, 213-T-shaped insert, 22-Adjustment unit, 221-Fixed base, 222-Round hole, 223-Round mounting cylinder, 224-Limit ring, 225-Sliding plate, 226-Reset spring, 227-Sliding column, 228-Ball, 229-T-shaped slot. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 This utility model provides a technical solution:

[0025] A ball cage structure for automobiles includes a cage body 1. The cage body 1 has several sets of adaptive mechanisms 2 arranged in a circular array inside for enabling minute radial and axial floating of the balls within a window. The adaptive mechanisms 2 include:

[0026] The disassembly and assembly unit 21 is located inside the frame 1 and is used to install the adjustment unit 22 inside the frame 1;

[0027] The adjustment unit 22 is located inside the disassembly unit 21 and includes several circular mounting cylinders 223. A sliding plate 225 is slidably mounted inside the circular mounting cylinder 223, and a sliding column 227 is fixedly mounted at the bottom of the sliding plate 225. A ball 228 is rotatably mounted at the bottom of the sliding column 227. By the sliding column 227 and the ball 228 floating up and down inside the circular mounting cylinder 223, the ball can achieve slight radial and axial floating within the window.

[0028] In this embodiment, a limiting ring 224 is fixedly installed inside the bottom end of the circular mounting cylinder 223. The sliding plate 225 slides above the limiting ring 224 to limit the movement position of the sliding plate 225.

[0029] The limit ring 224 precisely constrains the travel range of the sliding plate 225, preventing the mechanism from jamming or disengaging due to excessive displacement. Under high-speed vibration conditions, it ensures that the floating motion is always within a controllable range, avoiding mechanical interference or component damage caused by overtravel and improving the stability of the mechanism.

[0030] In this embodiment, a return spring 226 is installed inside the circular mounting cylinder 223, and the return spring 226 is located above the sliding plate 225. The return spring 226 pushes the sliding plate 225, the sliding column 227 and the ball 228 through its own elastic force, so that the ball 228 is always located on the surface of the ball.

[0031] The return spring 226 provides a continuous downward elastic force, ensuring that the ball 228 fits tightly against the ball surface. On one hand, this dynamically compensates for wear gaps and avoids impact noise caused by poor contact; on the other hand, it absorbs energy through elastic deformation during vibration or turning, reducing local stress concentration caused by hard contact and significantly reducing the risk of fretting wear.

[0032] In this embodiment, the adjustment unit 22 also includes a fixing base 221, and the fixing base 221 has a plurality of circular holes 222 arranged in a circular array inside, and a circular mounting cylinder 223 is fixedly installed inside the circular holes 222. T-shaped slots 229 are provided on the inner side of the fixing base 221 near both sides.

[0033] The T-shaped slot 229 provides an interface for subsequent quick assembly and disassembly, allowing the adjustment unit 22 to be pre-assembled as a whole and then connected to the frame.

[0034] In this embodiment, the disassembly and assembly unit 21 includes a plurality of installation windows 211 arranged in a circumferential array inside the frame 1, and the fixing seat 221 slides into the interior of the installation window 211 to realize the overall disassembly and replacement of the adaptive mechanism 2.

[0035] The mounting window 211 serves as a module carrier, allowing the mounting base 221 to slide directly into the frame 1. When local wear occurs, it is not necessary to disassemble the entire cage; simply slide the adaptive mechanism 2 module out along the axial direction to significantly shorten maintenance time and reduce operational complexity.

[0036] In this embodiment, T-shaped slots 212 are provided on both sides of the installation window 211, and the T-shaped slots 212 are connected to the T-shaped slots 229. T-shaped inserts 213 are slidably inserted into the T-shaped slots 212 and the T-shaped slots 229, and the fixing seat 221 is fixed inside the installation window 211 by means of the T-shaped inserts 213.

[0037] The T-shaped insert 213 forms a mechanical self-locking structure through a three-way interlocking groove consisting of 212, slot 229, and insert 213. Its sliding insertion design eliminates the need for bolts and tools, allowing for tightening / disassembly by hand. It maintains reliable connection even under vibration conditions, preventing loosening and detachment, while simultaneously meeting the dual requirements of efficient maintenance and operational safety.

[0038] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0039] During operation, firstly, when the ball is running, the ball presses against the ball 228, the ball 228 drives the sliding column 227 and the sliding plate 225 to slide, and the sliding plate 225 presses against the return spring 226. The movement of the ball 228 and the sliding column 227 enables the ball to float slightly radially and axially within the window.

[0040] Then, the mounting base 221 is slidably inserted into the interior of the installation window 211, the T-shaped slot 212 is connected to the T-shaped slot 229, and the T-shaped insert 213 is slidably inserted into the interior of the T-shaped slot 212 and the T-shaped slot 229 to disassemble and replace the disassembly unit 21.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car ball cage cage structure, comprising a cage body (1), characterized in that: The frame (1) has several sets of adaptive mechanisms (2) arranged in an internal circumferential array to enable the ball to float slightly radially and axially within the window. The adaptive mechanism (2) includes: The disassembly unit (21) is located inside the frame (1) and is used to install the adjustment unit (22) inside the frame (1); The adjustment unit (22) is located inside the disassembly unit (21) and includes several circular mounting cylinders (223). A sliding plate (225) is slidably installed inside the circular mounting cylinder (223). A sliding column (227) is fixedly installed at the bottom of the sliding plate (225). A ball (228) is rotatably installed at the bottom of the sliding column (227). By the sliding column (227) and the ball (228) floating up and down inside the circular mounting cylinder (223), the ball can achieve slight radial and axial floating within the window.

2. The automotive ball cage cage structure according to claim 1, characterized in that: A limiting ring (224) is fixedly installed inside the bottom end of the circular mounting cylinder (223). The sliding plate (225) slides above the limiting ring (224) to limit the movement position of the sliding plate (225).

3. The automotive ball cage cage structure according to claim 1, characterized in that: The circular mounting cylinder (223) is equipped with a return spring (226), and the return spring (226) is located above the sliding plate (225). The return spring (226) pushes the sliding plate (225), the sliding column (227) and the ball (228) through its own elastic force, so that the ball (228) is always located on the surface of the ball.

4. The automotive ball cage cage structure according to claim 1, characterized in that: The adjustment unit (22) also includes a fixing seat (221), and the fixing seat (221) has a plurality of circular holes (222) arranged in a circular array inside, and a circular mounting cylinder (223) is fixedly installed inside the circular holes (222). T-shaped slots (229) are provided on the inner side of the fixing seat (221) near both sides.

5. The automotive ball cage cage structure according to claim 4, characterized in that: The disassembly and assembly unit (21) includes several installation windows (211) arranged in a circular array inside the frame (1), and the fixing seat (221) slides into the interior of the installation window (211) to realize the overall disassembly and replacement of the adaptive mechanism (2).

6. The automotive ball cage cage structure according to claim 5, characterized in that: T-shaped slots (212) are provided on both sides of the installation window (211), and the T-shaped slots (212) are connected to the T-shaped slots (229). T-shaped plugs (213) are slidably inserted into the T-shaped slots (212) and the T-shaped slots (229), and the fixing base (221) is fixed inside the installation window (211) by means of the T-shaped plugs (213).

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