A face contact double ball ring large swing angle three ball pin assembly

Abstract

A kind of face contact double ball ring large swing angle three ball pin assembly. Mainly solve the problem that ball ring and channel of three ball pin assembly are line contact or point contact, unstable contact. Its characterized in that: it further includes at least two first planes (31), is located on the channel, and is opposite to the center plane of the channel two sides;With the first plane one-to-one corresponding second plane (41), it is located on the outer side end face of the ball ring and with the first plane face contact.The utility model provides a kind of face contact double ball ring large swing angle three ball pin assembly, the compact structure of the cooperation of double inclined plane, the circumferential gap is extremely small, no swing jamming phenomenon occurs, improves assembly reliability and life.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, specifically to a surface contact double ball ring large swing angle three ball pin assembly. Background Technology

[0002] In automotive transmission systems, constant velocity joints play a crucial role, reliably transmitting power and ensuring smooth vehicle operation even when the angle between two shafts is constantly changing. Traditional constant velocity joints, such as common ball cage joints and ordinary three-ball pin joints, have certain limitations in some special working conditions or specific application scenarios: for example, insufficient contact strength, often resulting in line or point contact. When transmitting high torque, stress concentration occurs in the contact area, accelerating component wear and fatigue, shortening lifespan. Furthermore, due to gaps between the ball ring and the housing, contact instability can occur, generating vibration and noise during high-speed operation, affecting the driving experience. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a surface contact double ball ring large swing angle three ball pin assembly, which mainly solves the problem of unstable contact between the ball ring and the groove of the three ball pin assembly, which is a line contact or point contact.

[0004] The technical solution of this utility model is as follows: A surface-contact double-ball-ring large-angle three-ball-pin assembly includes a housing, within which a three-ball-pin assembly and a channel are provided. The three-ball-pin assembly includes a three-pin holder, each pin holder including a journal. A ball ring is provided between the journal and the channel. It also includes... At least two first planes are disposed on the channel and are disposed opposite to each other on both sides of the center plane of the channel; A second plane, corresponding one-to-one with the first plane, is located on the outer end face of the spherical ring and contacts the first plane.

[0005] The first plane includes an upper plane and a lower plane, and the angle α between the upper plane and the vertical plane is greater than the angle b between the lower plane and the vertical plane.

[0006] The angle b between the lower plane and the vertical plane is 0.6 to 0.8 times the angle a between the upper plane and the vertical plane.

[0007] The spherical ring includes an outer spherical ring and an inner spherical ring, and the second plane is disposed on the outer spherical ring.

[0008] A needle roller is provided between the inner ball ring and the journal.

[0009] The journal is also provided with a retaining ring, which is positioned above the inner ball ring.

[0010] The inner wall of the inner spherical ring is provided with a first cavity with a smaller diameter and a second cavity with a larger diameter, and the first cavity and the second cavity are connected by a ramp; the retaining ring includes a side plate and a baffle plate connected to each other, the side plate slides with the inner wall of the first cavity, and the baffle plate blocks the ramp.

[0011] The beneficial effects of this utility model are: This utility model provides a surface contact double ball ring large swing angle three ball pin assembly. The cooperation of the double inclined surfaces makes the product structure compact, the circumferential gap is extremely small, and there is no swing jamming phenomenon, which improves the reliability and life of the assembly. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.

[0013] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0014] Figure 3 This is a partial structural diagram of one embodiment of the present invention.

[0015] Figure 4 This is a partial structural diagram of one embodiment of the present invention.

[0016] Figure 5 for Figure 4 Enlarged diagram of point B in the middle. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings. A surface-contact double-ball-ring large-angle three-ball-pin assembly includes a housing 1, within which a three-ball-pin assembly and a channel 3 are provided. The three-ball-pin assembly includes a three-pin holder 2, which includes a journal 21. A ball ring 4 is provided between the journal and the channel. It also includes at least two first planes 31, disposed on the channel and positioned opposite each other on both sides of the center plane of the channel; and second planes 41, corresponding one-to-one with the first planes, disposed on the outer end face of the ball ring and in contact with the first planes. The double-beveled contact makes the product structure compact, with minimal circumferential clearance, eliminating wobbling and jamming, and improving the reliability and lifespan of the assembly. The double-beveled contact greatly increases the contact area between the ball ring and the housing, dispersing stress and reducing wear and fatigue risks. Simultaneously, the double-beveled contact makes the product structure compact, with minimal circumferential clearance, eliminating wobbling and jamming, and improving the reliability and lifespan of the assembly. Under high-speed and high-torque conditions, it provides stable contact, reduces vibration and noise, optimizes the driving experience, and meets the needs of new energy vehicles and high-performance vehicles for quietness and efficiency.

[0018] In this embodiment, as Figure 3As shown, the first plane includes an upper plane 311 and a lower plane 312, and the angle α between the upper plane and the vertical plane is greater than the angle b between the lower plane and the vertical plane.

[0019] In this embodiment, the angle b between the lower plane and the vertical plane is 0.6 to 0.8 times the angle a between the upper plane and the vertical plane.

[0020] In this embodiment, as Figure 5 As shown, the ball ring includes an outer ball ring 40 and an inner ball ring 42, with the second plane disposed on the outer ball ring. This double-ball ring structure significantly expands the swing angle range, far exceeding that of traditional three-ball pins. In complex operating conditions of off-road and special vehicles, it ensures stable power transmission, improving vehicle passability and adaptability. For example, in off-road scenarios, during large-angle turns and hill climbs, power remains continuous and efficiency is not reduced. The inner ball ring can slide on the journal, while the outer ball ring provides swing capability.

[0021] In this embodiment, as Figure 1 As shown, a needle roller 43 is provided between the inner ball ring and the journal.

[0022] In this embodiment, as Figure 5 As shown, a retaining ring 44 is also provided on the journal, and the retaining ring is correspondingly provided above the inner ball ring.

[0023] In this embodiment, as Figure 4 As shown, the inner wall of the inner ball ring has a first cavity 421 with a smaller diameter and a second cavity 422 with a larger diameter, which are connected by a ramp 423. The retaining ring includes a side piece 442 and a baffle 441 connected to each other. The side piece slides in contact with the inner wall of the first cavity, and the baffle engages with the ramp. The baffle and the ramp work together to prevent the ball from coming off.

[0024] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0025] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. The embodiments should not be considered as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A surface-contact double-ball-ring large swing angle three-ball-pin assembly, comprising a housing (1), wherein a three-ball-pin assembly and a channel (3) are provided inside the housing, the three-ball-pin assembly includes a three-pin holder (2), the three-pin holder includes a journal (21), and a ball ring (4) is provided between the journal and the channel, characterized in that: Also includes At least two first planes (31) are disposed on the channel and are disposed opposite to each other on both sides of the center plane of the channel; A second plane (41) corresponding to the first plane is located on the outer end face of the ball ring and is in contact with the first plane.

2. The surface contact double ball ring large swing angle three ball pin assembly according to claim 1, characterized in that: The first plane includes an upper plane (311) and a lower plane (312), and the angle a between the upper plane and the vertical plane is greater than the angle b between the lower plane and the vertical plane.

3. The surface contact double ball ring large swing angle three ball pin assembly according to claim 2, characterized in that: The angle b between the lower plane and the vertical plane is 0.6 to 0.8 times the angle a between the upper plane and the vertical plane.

4. A surface contact double ball ring large swing angle three ball pin assembly according to any one of claims 1-3, characterized in that: The ball ring includes an outer ball ring (40) and an inner ball ring (42), and the second plane is disposed on the outer ball ring.

5. The surface contact double ball ring large swing angle three ball pin assembly according to claim 4, characterized in that: A needle roller (43) is provided between the inner ball ring and the journal.

6. The surface contact double ball ring large swing angle three ball pin assembly according to claim 5, characterized in that: The journal is also provided with a retaining ring (44), which is located above the inner ball ring.

7. The surface contact double ball ring large swing angle three ball pin assembly according to claim 6, characterized in that: The inner wall of the inner spherical ring is provided with a first cavity (421) with a smaller diameter and a second cavity (422) with a larger diameter. The first cavity and the second cavity are connected by a ramp (423). The retaining ring includes a side piece (442) and a baffle (441) connected to each other. The side piece slides with the inner wall of the first cavity, and the baffle blocks the ramp.

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