Long-service-life spherical joint

Abstract

The utility model discloses a long-service-life spherical joint. The problems that a nut of a traditional ball head is likely to loosen, and the service life is affected are mainly solved. The thread part is arranged on the ball pin and is used for being connected with a nut; the positioning hole is formed in the threaded part and above the nut; the plug pin is matched with the positioning hole in an inserted mode, and part of the plug pin is arranged outside the positioning hole and correspondingly arranged above the nut to be matched with the nut in a blocking mode. According to the long-service-life ball type connector, the positioning pin is matched with the fixing nut, it can be guaranteed that the ball pin is located at the correct position, the ball pin is prevented from sliding or rotating due to stress, the installation process is simplified, and in the installation process, technicians only need to screw the ball pin into the connector to the proper position, and then the ball pin can be fixed. And then a positioning pin, a clamp spring or other types of locking pieces are inserted into the straight slot, so that the ball pin can be easily fixed. Complex tools or skills are not needed in the process, the installation time is greatly saved, the maintenance cost is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts, in particular to a spherical joint with high service life. Background Art

[0002] During the operation of an automobile, a spherical joint can effectively disperse and absorb forces and vibrations from different directions, thereby reducing the pressure and wear on the connecting components. When the spherical joint is damaged, it may not provide a normal range of motion, or the motion becomes stiff and jerky, which will affect the normal function of mechanical components.

[0003] At present, there are problems of poor stability and low service life in some existing spherical joint products for automobiles on the market. For example, when the ball head is installed, it is only fixed by a nut, and the nut may become loose, affecting the service life. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the background art, the utility model provides a spherical joint with high service life, mainly solving the problem that the nut of the traditional ball head may become loose, affecting the service life.

[0005] The technical solution of the utility model is as follows: A spherical joint with high service life includes a housing, a ball seat is arranged inside the housing, and also includes a ball pin. Part of the ball pin extends into the housing and is provided with a ball head that cooperates with the ball seat; a nut is connected to the ball pin, and also includes

[0006] A threaded portion is arranged on the ball pin for connecting with the nut;

[0007] A positioning hole is arranged on the threaded portion and above the nut;

[0008] A pin is inserted into the positioning hole in a plug-in fit, and part of the pin is arranged outside the positioning hole and above the nut to cooperate with the nut in a blocking manner.

[0009] The ball seat is made of metal.

[0010] An oil nozzle is arranged at the bottom of the housing.

[0011] A dust cover is also included. One end of the dust cover is connected to the ball pin, and the other end is connected to the outer wall of the circumference of the housing.

[0012] A groove is arranged on the outer wall of the circumference of the end of the dust cover connected to the ball pin, and a snap ring is installed in the groove.

[0013] A second groove is arranged on the outer wall of the circumference of the end of the dust cover connected to the housing, and a second snap ring is installed in the second groove.

[0014] The ball pin includes a frustum, a journal is provided between the frustum and the ball head, one end of the dust cover is mounted on the frustum, a convex ring is provided on the frustum, the convex ring is arranged below the connection end of the dust cover and the frustum, and the convex platform is arranged above the journal.

[0015] The beneficial effects of the present utility model are as follows: The present utility model provides a high-life ball joint. By the cooperation of the positioning pin and the fixing nut, it can ensure that the ball pin is in the correct position, prevent it from sliding or rotating due to force, and also simplifies the installation process. During installation, the technician only needs to screw the ball pin into the joint to an appropriate position, and then insert the positioning pin, snap ring or other types of locking parts into the slotted hole, and the fixation of the ball pin can be easily achieved. This process does not require complex tools or skills, greatly saves the installation time, reduces the maintenance cost, and improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model.

[0017] Figure 2 It is a partial structural schematic diagram of an embodiment of the present utility model.

[0018] Figure 3 is Figure 1 an enlarged schematic view of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the present utility model with reference to the drawings: As shown in the figure, a high-life ball joint includes a housing 1, a ball seat 2 is provided inside the housing, and a ball pin 3 is further included. Part of the ball pin extends into the housing and is provided with a ball head 31 that cooperates with the ball seat; a nut 32 is connected to the ball pin, and a threaded portion 33 is further included, which is provided on the ball pin for connecting with the nut.

[0020] A positioning hole 34 is provided in the threaded portion and above the nut; a plug pin 35 is inserted and cooperated with the positioning hole, and part of the plug pin is arranged outside the positioning hole and above the nut to block and cooperate with the nut. By the cooperation of the positioning pin and the fixing nut, it can ensure that the ball pin is in the correct position, prevent it from sliding or rotating due to force, and also simplifies the installation process. During installation, the technician only needs to screw the ball pin into the joint to an appropriate position, and then insert the positioning pin, snap ring or other types of locking parts into the slotted hole, and the fixation of the ball pin can be easily achieved. This process does not require complex tools or skills, greatly saves the installation time, reduces the maintenance cost, and improves the work efficiency.

[0021] In this embodiment, as shown in the figure, the ball seat is made of metal. Compared with traditional plastic ball seats, during vehicle driving, especially in the steering and suspension systems, greater friction can provide better position retention ability, ensuring that the vehicle can stably maintain a predetermined driving trajectory under various road conditions, enhancing the accuracy and stability of handling. At the same time, this also means that in extreme driving situations such as emergency braking or sharp turning, the vehicle's response is faster and more reliable, significantly improving driving safety.

[0022] In this embodiment, as shown in the figure, an oil nozzle 4 is provided at the bottom of the housing. Compared with the structure without an oil nozzle, having an oil nozzle can directly add lubricating grease to the inside of the spherical joint. This not only improves the lubrication effect, but also reduces frictional losses, increases the service life of the ball pin, and simplifies the maintenance process because the lubrication operation can be completed without disassembling the entire structure.

[0023] The design with an oil nozzle greatly simplifies the maintenance process. In the past, in order to lubricate the spherical joint, cumbersome disassembly work was often required, which was not only time-consuming and laborious, but also might cause damage to the joint or a decline in performance due to improper operation. Now, with the help of the oil nozzle, maintenance personnel can quickly complete the lubrication operation without disassembling the entire structure, which not only saves valuable time, but also reduces maintenance costs and improves the availability and production efficiency of the equipment.

[0024] In this embodiment, as shown in the figure, it further includes a dust cover 5. One end of the dust cover is connected to the ball pin, and the other end is connected to the circumferential outer wall of the housing.

[0025] In this embodiment, as shown in the figure, a groove 51 is provided on the circumferential outer wall of the end of the dust cover connected to the ball pin, and a snap ring 52 is installed in the groove. The structure with upper and lower snap rings is adopted for the dust cover. Compared with the dust cover without snap rings, the structure with upper and lower snap rings gives the dust cover stronger mechanical stability. The two snap rings tightly embrace the dust cover, fixing it firmly outside the spherical joint. This stable connection method greatly reduces the risk of the dust cover falling off in a harsh working environment or under strong vibration, ensuring that it will not fail due to accidental loosening during the entire service life. Secondly, the presence of the snap rings enhances the dust cover's ability to block external dust and debris. In daily use, especially in an environment with a lot of dust and flying sand and stones, the dust cover faces severe challenges. The structure with upper and lower snap rings makes the edge of the dust cover contact the spherical joint more tightly, effectively preventing dust and debris from penetrating into the joint interior from the edge. This highly efficient protection measure significantly reduces the possibility of internal precision parts being eroded and worn, extending the service life of the spherical joint.

[0026] In this embodiment, as shown in the figure, a second groove is provided on the outer circumferential wall of one end of the dust cover connected to the housing, and a second snap ring is installed in the second groove.

[0027] In this embodiment, as shown in the figure, the ball pin includes a frustum 30. A journal 36 is provided between the frustum and the ball head. One end of the dust cover is installed on the frustum. A convex ring 37 is provided on the frustum. The convex ring is provided below the end where the dust cover is connected to the frustum, and the convex platform is provided above the journal. Compared with the traditional ball pin without a convex ring, in the case of the traditional ball pin without a convex ring, when the vehicle encounters bumps or turns during driving, the spherical joint will swing. At this time, the dust cover may be squeezed due to inertia and may even fall off the ball pin and then slide to the position of the ball pin neck. Once this situation occurs, it will not only cause the dust cover to lose its original protection function, but also expose the ball pin to the external environment, making it extremely vulnerable to the invasion of dust, moisture, chemical substances, etc., accelerating the wear and corrosion of the ball pin and shortening its service life. The role of the convex ring is to provide a clear positioning point for the dust cover, so that when it is squeezed, it can be firmly restricted by the convex ring in a predetermined position, avoiding the detachment and movement of the dust cover. In this way, even under severe driving conditions, the dust cover can always remain in the correct position, play its due protective role, and provide a clean and dry working environment for the ball pin. In addition, the presence of the convex ring also increases the overall structural strength of the ball pin. During the driving of the vehicle, the ball pin bears forces and torques from all directions. The design of the convex ring can disperse these forces to a certain extent, reduce the stress concentration at the lower end of the conical surface of the ball pin, thereby improving the anti-fatigue performance and durability of the ball pin.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0030] The embodiments described with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model. The embodiments should not be regarded as a limitation to the present utility model, but any improvements made based on the spirit of the present utility model should be within the protection scope of the present utility model.

Claims

1. A long-life ball joint, comprising a housing (1), a ball seat (2) disposed in the housing, and a ball pin (3), a portion of the ball pin extending into the housing and having a ball head (31) matched with the ball seat; a nut (32) connected to the ball pin, characterized in that: Also includes A threaded portion (33) is provided on the ball pin and is used to connect with a nut; A positioning hole (34) is provided on the threaded portion and above the nut; The latch (35) is plugged into the positioning hole, and part of the latch is arranged outside the positioning hole and corresponds to being arranged above the nut to block and cooperate with the nut.

2. A long-life ball joint according to claim 1, characterized in that: The ball seat is made of metal.

3. A long-life ball joint according to claim 2, characterized in that: An oil nozzle (4) is provided at the bottom of the housing.

4. A long-life ball joint according to claim 3, characterized in that: It also includes a dust cover (5), one end of which is connected to the ball pin, and the other end of which is connected to the circumferential outer wall of the shell.

5. A long-life ball joint according to claim 4, characterized in that: A groove (51) is provided on the circumferential outer wall of one end of the dust cover connected to the ball pin, and a snap ring (52) is installed in the groove.

6. A long-life ball joint according to claim 5, characterized in that: A second groove is provided on the circumferential outer wall of one end of the dust cover connected to the shell, and a second clamping ring is installed in the second groove.

7. A long-life ball joint according to claim 6, characterized in that: The ball pin comprises a frustum (30), a shaft neck (36) is provided between the frustum and the ball head, one end of the dust cover is mounted on the frustum, a convex ring (37) is provided on the frustum, the convex ring is provided below one end where the dust cover is connected to the frustum, and the boss is provided above the shaft neck.

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