CN214534005U

CN214534005U - Ball hinge structure

Info

Publication number: CN214534005U
Application number: CN202023099842.7U
Authority: CN
Inventors: 易荣华
Original assignee: Chengdu Wangjin Auto Parts Co ltd
Current assignee: Chengdu Wangjin Auto Parts Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-10-29
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a spherical hinge structure, which comprises a spherical pin, a spherical pin sleeve, a spherical pin seat and a bottom plate, wherein the spherical pin seat and the bottom plate are arranged in the cavity of the spherical pin sleeve; the utility model discloses an among the spherical hinge structure with annular groove, add a set of ring channel on the ball cotter way cavity inner wall, and then through the contact stress size and the distribution that change the radial position of ball round pin seat and ball round pin to balanced spherical hinge moment, rigidity and durability can, make spherical hinge moment, rigidity and durable homoenergetic satisfy the customer's demand betterly.

Description

Ball hinge structure

Technical Field

The utility model relates to a spherical hinge for the car particularly, relates to a ball cotter way and spherical hinge structure of belt ring groove.

Background

The performance evaluation indexes of the automobile spherical hinge mainly have technical requirements on three aspects of moment, rigidity and durability, along with social progress and development of the automobile industry, the requirements of consumers on the comfort, safety, service life and the like of an automobile are higher and higher, meanwhile, higher requirements are provided for the performance of the automobile spherical hinge, and the spherical hinge is required to have lower moment, higher rigidity and longer service life.

In the existing spherical hinge, the contradiction exists between the moment level of the spherical hinge and the rigidity and the service life (durability), and the three are difficult to be obtained at the same time, namely when the lower moment level is reached, the requirements of high rigidity and long service life cannot be met; when the requirements of high rigidity and long service life are met, the requirement of low torque cannot be met, so that the existing automobile spherical hinge needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: aiming at the problems of the current spherical hinge, on the basis of not changing a spherical hinge core piece, namely a spherical hinge seat, the aim of balancing the torque, the rigidity and the durability is achieved by locally optimizing a spherical pin sleeve, so that the torque, the rigidity and the durability of the spherical hinge all meet the requirements of customers.

The embodiment of the utility model discloses a realize through following technical scheme:

a ball pin sleeve with an annular groove is characterized in that the annular groove is formed in the inner wall of a cavity of the ball pin sleeve and surrounds the axis of the cavity.

A spherical hinge structure comprises a spherical pin, a spherical pin sleeve and a spherical pin seat, wherein the spherical pin sleeve is arranged as described above, the spherical pin seat is arranged in a cavity of the spherical pin sleeve, and the spherical head of the spherical pin is arranged in the spherical pin seat to form a group of spherical friction pairs.

In some preferred embodiments, the lower end of the ball stud sleeve is provided with a bottom plate, and the bottom of the ball stud seat abuts against the bottom plate.

In some preferred embodiments, the angle between the side wall of the annular groove and the groove bottom is β, in any cross section along the axis of the ball stud sleeve, 90 ° ≦ β < 180 °.

In some preferred embodiments, the groove shape of the annular groove is arc-shaped in any cross section where the axis of the ball pin sleeve is located.

In some preferred embodiments, the groove depth of the annular groove a is t, 0 < t < 1 mm.

In some preferred embodiments, the groove depth of the annular groove is 0.05 mm.

In some preferred embodiments, in the axial length direction of the ball pin sleeve, the height of a contact surface between the inner wall of the ball pin sleeve and the ball pin sleeve is defined as L, and a side wall of the annular groove far away from the ball pin is a first side wall of the annular groove;

the height from the first side wall of the annular groove to the bottom of the contact surface on the same side is h1, and h is more than 0 and less than 2/3L.

In some preferred embodiments, the annular grooves have a groove width h2, 0 < h2 < L/2.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

in the ball pin sleeve with the annular groove and the ball hinge structure of the utility model, a group of annular grooves are additionally arranged on the inner wall of the cavity body of the ball pin sleeve; when the spherical hinge structure is in an initial state, the spherical hinge structure has lower moment and proper rigidity; when the ball pin base is deformed under the action of a large load, the outer wall of the ball pin base is contacted with the groove bottom of the annular groove on the inner wall of the ball pin sleeve, and the annular groove can bear a certain load, so that the durability of the ball hinge is improved.

The utility model discloses a ball round pin cover and ball pivot structure with annular groove is through the influence that changes factors such as contact stress, area of contact, contact zone for ball pivot moment, rigidity and durable each item index are balanced, reach balanced purpose.

Drawings

Fig. 1 is a schematic structural view of a spherical hinge structure with an annular groove according to the present invention;

fig. 2 is a schematic structural view of a ball pin sleeve provided in embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a ball pin sleeve provided in embodiment 2 of the present invention;

fig. 4 is a schematic structural view of a ball pin sleeve provided in embodiment 3 of the present invention;

icon: 1-ball pin, 2-ball pin sleeve, 2 a-annular groove, 3-ball pin seat and 4-bottom plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of this application is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and be operated is not to be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the utility model provides a take ball pin bushing 2 of ring channel and have the ball pivot structure of this ball pin bushing 2, be particularly useful for the connecting rod of automotive industry, outer pull rod and control arm ball pivot turn to.

An annular groove 2a is formed in the inner wall of the cavity of the ball pin sleeve 2 and surrounds the axis of the cavity.

The spherical hinge structure comprises a spherical pin 1, a spherical pin sleeve 2 and a spherical pin seat 3, wherein the spherical pin seat 3 is arranged in the spherical pin sleeve 2, a spherical ball part on the spherical pin 1 is arranged in the spherical pin seat 3, and a group of spherical friction pairs are formed between the ball head part of the spherical pin 1 and the inner wall of a cavity of the spherical pin seat 3.

The inner wall of the cavity of the ball pin sleeve 2 is provided with an annular groove 2a surrounding the ball pin seat 3, specifically, the ball pin sleeve 2 is provided with an axis, and the annular groove 2a is arranged on the inner wall of the ball pin sleeve 2 in the radial direction perpendicular to the axis.

In some preferred embodiments, the lower end of the ball pin sleeve 2 is provided with a bottom plate 4, the bottom plate 4 and the ball pin sleeve 2 can be connected in a riveting manner, and the bottom of the ball pin seat 3 abuts against the bottom plate 4.

Referring to fig. 2 and 3, in any section where the axis of the ball pin sleeve 2 is located, the included angle between the side wall of the annular groove 2a and the groove bottom is beta, and beta is greater than or equal to 90 degrees and less than 180 degrees.

The first embodiment is as follows:

referring to fig. 2, the included angle between the groove bottom of the annular groove 2a and the side wall of the groove is 90 degrees, and the included angle is right-angled.

Example two:

referring to fig. 3, the angle between the side wall of the annular groove 2a and the groove bottom is an obtuse angle.

Example three:

referring to fig. 4, in any cross section where the axis of the ball pin sleeve 2 is located, the groove shape of the annular groove 2a is arc-shaped.

In the above embodiment, the ball hinge structure has a low moment and a proper stiffness in the initial state, and when the ball pin base 3 is deformed by a large load, the ball pin base 3 abuts against the groove bottom of the annular groove 2a, and at this time, the groove bottom of the annular groove 2a bears a certain load.

In the above embodiment, the groove depth of the annular groove 2a is t, 0 < t < 1mm, and the groove width of the annular groove 2a is h2, 0 < h2 < L/2.

In some preferred embodiments, the groove depth of the annular groove 2a is 0.05 mm.

In addition, referring to fig. 2 to 4, in the axial length direction of the ball pin sleeve 2, the height of the contact surface between the inner wall of the ball pin sleeve 2 and the ball pin seat 3 is defined as L, and the side wall of the annular groove 2a away from the ball pin 1 is the first side wall of the annular groove 2a, so that the height from the first side wall of the annular groove 2a to the bottom of the contact surface on the same side is h1, and 0 < h1 < 2/3L.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A spherical hinge structure is characterized in that: including ball round pin (1), ball round pin cover (2) and locate inside ball round pin seat (3) of the cavity of ball round pin cover (2), the bulb portion of ball round pin (1) is located in ball round pin seat (3) in order to constitute a set of sphere friction pair, the axis that encircles the cavity on the cavity inner wall of ball round pin cover (2) is provided with ring channel (2a), the lower tip of ball round pin cover (2) is equipped with bottom plate (4), the bottom butt of ball round pin seat (3) in on bottom plate (4).

2. The spherical hinge structure according to claim 1, wherein: in any section where the axis of the ball pin sleeve (2) is located, the included angle between the side wall of the annular groove (2a) and the groove bottom is beta, and beta is more than or equal to 90 degrees and less than 180 degrees.

3. The spherical hinge structure according to claim 1, wherein: in any section where the axis of the ball pin sleeve (2) is located, the groove shape of the annular groove (2a) is arc-shaped.

4. The spherical hinge structure according to claim 1, wherein: the depth of the annular groove (2a) is t, and t is more than 0 and less than 1 mm.

5. The spherical hinge structure according to claim 4, wherein: the groove depth of the annular groove (2a) is 0.05 mm.

6. The spherical hinge structure according to claim 1, wherein: in the length direction of the axis of the ball pin sleeve (2), the height of a contact surface between the inner wall of the ball pin sleeve (2) and the ball pin sleeve (2) is defined as L, and the side wall of the annular groove (2a) far away from the ball pin (1) is a first side wall of the annular groove (2 a);

the height from the first side wall of the annular groove (2a) to the bottom of the contact surface on the same side is h1, and h1 is more than 0 and less than 2/3L.

7. The spherical hinge structure according to claim 6, wherein: the width of the annular groove (2a) is h2, and h2 is more than 0 and less than L/2.