CN219062258U

CN219062258U - Tripod head assembly

Info

Publication number: CN219062258U
Application number: CN202223198191.6U
Authority: CN
Inventors: 徐江平; 金孝伟; 赵裕佳
Original assignee: Zhejiang Jiasheng Auto Parts Manufacturing Co ltd
Current assignee: Zhejiang Jiasheng Auto Parts Manufacturing Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-05-23
Anticipated expiration: 2032-12-01

Abstract

A three ball pin assembly. The ball joint mainly solves the problems that the contact surface between an outer ball ring and a shell of the existing three-ball-pin universal joint is small, and the outer ball ring is stressed and is easy to damage. The method is characterized in that: the first universal joint comprises a shell (21), a tripod (4) is arranged in the shell, an outer ball ring (41) is arranged on the tripod, at least one first concave arc-shaped surface (411) and one second convex arc-shaped surface (412) are arranged on the circumferential surface of the outer ball ring, and a channel (211) matched with the first arc-shaped surface and a slideway (212) matched with the second arc-shaped surface are arranged in the shell. The utility model provides a three-ball pin assembly, which is contacted with a concave surface through at least one convex surface, has large contact area, is not easy to damage and has long service life.

Description

Tripod head assembly

Technical Field

The utility model relates to the field of automobile parts, in particular to a three-ball pin assembly.

Background

The universal joint refers to a mechanical structure for realizing power transmission of different shafts by using a ball type connection, and is a very common mechanical component at present. Tripod joints are among the common quasi-constant velocity joints. The existing common three-ball-pin universal joint has the advantages of simple structure, light weight, low cost and the like, and as shown in China patent with publication number of CN109210097A, the outer ball ring of the common three-ball-pin universal joint is mostly in arc surface contact, the contact surface is small, and the stress is large and the joint is easy to damage.

Disclosure of Invention

In order to overcome the defects of the background technology, the utility model provides a three-ball pin assembly, which mainly solves the problems that the contact surface between an outer ball ring and a shell of the existing three-ball pin universal joint is small, and the stress is large and the damage is easy to occur.

The technical scheme adopted by the utility model is as follows:

the utility model provides a three ball round pin assemblies, includes the jackshaft, jackshaft one end is equipped with first universal joint, and the other end is equipped with the second universal joint, first universal joint includes the casing, be equipped with the tripod in the casing, be equipped with outer ball ring on the tripod, outer ball ring circumference surface is equipped with the first arcwall face of at least one indent and the second arcwall face of an evagination, be equipped with in the casing with first arcwall face matched with channel and with second arcwall face matched with slide.

And the first arc-shaped surface and the second arc-shaped surface are smooth and excessive.

The tripod comprises a journal, an inner ball ring is arranged outside the journal, and the circumferential outer wall of the journal is in contact with the spherical surface of the inner wall of the inner ball ring.

The inner wall of the outer ball ring is provided with two limit rings, and the two limit rings are arranged on the upper side and the lower side of the inner ball ring.

The novel anti-dust device comprises a shell, and is characterized by further comprising a dust cover, wherein one end of the dust cover is detachably connected with the intermediate shaft, and the other end of the dust cover is detachably connected with the circumferential outer wall of the shell.

The dust cover is connected with the intermediate shaft through a clamp.

The beneficial effects of the utility model are as follows: the utility model provides a three-ball pin assembly, which is contacted with a concave surface through at least one convex surface, has large contact area, is not easy to damage and has long service life.

Drawings

FIG. 1 is a schematic partial cross-sectional view of one embodiment of the present utility model.

FIG. 2 is a schematic cross-sectional view of one embodiment of the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings: as shown in the figure, the three-ball pin assembly comprises a middle shaft 1, wherein one end of the middle shaft is provided with a first universal joint 2, the other end of the middle shaft is provided with a second universal joint 3, the first universal joint comprises a shell 21, a three-pin frame 4 is arranged in the shell, an outer ball ring 41 is arranged on the three-pin frame, the circumferential surface of the outer ball ring is provided with at least one first concave arc-shaped surface 411 and one second convex arc-shaped surface 412, and a channel 211 matched with the first arc-shaped surface and a slideway 212 matched with the second arc-shaped surface are arranged in the shell. The contact is carried out through at least one convex and concave surface, the contact area is large, the damage is not easy, the service life is long, the slide way can be matched with the concave first arc-shaped surface for the convex structure, the integral structure strength is enhanced, the stress is even, and the service life is long.

In this embodiment, as shown in the figure, the first arcuate surface and the second arcuate surface are excessively smooth.

In this embodiment, as shown in the figure, the tripod comprises a journal 40, an inner ball ring 5 is arranged outside the journal, and the circumferential outer wall of the journal is contacted with the spherical surface of the inner wall of the inner ball ring. The product has a swing angle of 20 degrees, large swing angle and high torque.

In this embodiment, as shown in the figure, two stop rings 51 are provided on the inner wall of the outer ball ring, and the two stop rings are provided on the upper and lower sides of the inner ball ring. Playing a limiting role, a needle roller can be arranged between the inner ball ring and the outer ball ring, and the needle roller is arranged between the two limiting rings.

In this embodiment, as shown in the figure, the dust-proof cover 6 is further included, one end of the dust-proof cover is detachably connected with the intermediate shaft, and the other end of the dust-proof cover is detachably connected with the outer circumferential wall of the housing. Plays a role in dust prevention and prolongs the service life.

In this embodiment, the dust cap is connected to the intermediate shaft by a clip, as shown. The clamp realizes the dismouting of dust cover, and is more convenient and difficult for leaking.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The embodiments described with reference to the drawings are exemplary and intended to be illustrative of the utility model and should not be construed as limiting the utility model. The examples should not be construed as limiting the utility model, but any modifications based on the spirit of the utility model should be within the scope of the utility model.

Claims

1. The utility model provides a tripod head assembly, includes jackshaft (1), jackshaft one end is equipped with first universal joint (2), and the other end is equipped with second universal joint (3), its characterized in that: the first universal joint comprises a shell (21), a tripod (4) is arranged in the shell, an outer ball ring (41) is arranged on the tripod, at least one first concave arc-shaped surface (411) and one second convex arc-shaped surface (412) are arranged on the circumferential surface of the outer ball ring, and a channel (211) matched with the first arc-shaped surface and a slideway (212) matched with the second arc-shaped surface are arranged in the shell.

2. A tripod head assembly according to claim 1, wherein: and the first arc-shaped surface and the second arc-shaped surface are smooth and excessive.

3. A tripod head assembly according to claim 2, wherein: the tripod comprises a journal (40), an inner ball ring (5) is arranged outside the journal, and the circumferential outer wall of the journal is in contact with the spherical surface of the inner wall of the inner ball ring.

4. A tripod head assembly according to claim 3, wherein: the inner wall of the outer ball ring is provided with two limit rings (51), and the two limit rings are arranged on the upper side and the lower side of the inner ball ring.

5. A tripod head assembly according to claim 4, wherein: still include dust cover (6), dust cover one end with the jackshaft can dismantle and be connected, the other end with casing circumference outer wall can dismantle and be connected.

6. A tripod head assembly according to claim 5, wherein: the dust cover is connected with the intermediate shaft through a clamp.