Self-sealing ball pin shell structure of steering ball head
By designing components such as ball joint housing, ball cup, ball head, and sealing cap, the problem of poor sealing effect in the existing technology is solved, achieving a self-sealing effect, improving the stability and product quality of the steering ball head, and reducing processing difficulty and production cost.
Patent Information
- Application Number
- CN202520536918.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-03-26
AI Technical Summary
In the existing technology, when the ball joint structure of automobile steering is sealed by contacting the sealing cover through the folded edge at the bottom of the ball pin housing, the large amount of riveting deformation leads to a deterioration in the ball joint torque performance, while the small amount of riveting deformation may lead to sealing failure, resulting in high production line control difficulty and unstable product quality.
The design incorporates a ball pin shell, ball cup, ball head, sealing cap, folded edge, inner bevel, outer bevel, limiting edge, annular sealing groove, and sealing ring. The folded edge features an inner and outer bevel design to improve the convenience and precision of riveting operations. The sealing cap is limited by the limiting edge, and the sealing ring and annular sealing groove are tightly fitted to achieve a self-sealing effect.
It improves the sealing effect, prevents the infiltration of media such as oil or water, ensures the long-term stable operation of the steering ball joint structure, reduces the processing difficulty, improves product quality and production efficiency, and prevents dust and other impurities from entering by sealing the top of the ball pin housing, thus ensuring the stability and reliability of the steering ball joint structure.
Smart Images
Figure CN223662348U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile steering system, concretely is a kind of steering ball head self-sealing ball pin shell structure. BACKGROUND
[0002] Steering ball head is the key component of automobile steering system, its function is similar to human joint, connect steering mechanism and wheel, realize flexible steering of multiple angles and reduce vibration, steering ball head is usually made of high-strength alloy material to ensure that it has excellent durability and reliability in complex and changeable driving environment.The accurate manufacturing process guarantees the accuracy and response speed of steering, so that the driver can easily control the vehicle, even when high-speed driving or sharp turn can also maintain stability, in prior art, automobile steering ball head structure is sealed by the contact of the deformation of the folding edge of the bottom of ball pin shell with sealing cover after riveting pressure, if riveting deformation is larger, it can lead to poor performance of ball head torque, if riveting deformation is small, it can lead to sealing failure, leading to higher difficulty in production line control, unstable product quality. SUMMARY
[0003] In view of the deficiencies of the prior art, the utility model provides a kind of steering ball head self-sealing ball pin shell structure, solve the problem in prior art, automobile steering ball head structure is sealed by the contact of the deformation of the folding edge of the bottom of ball pin shell with sealing cover after riveting pressure, if riveting deformation is larger, it can lead to poor performance of ball head torque, if riveting deformation is small, it can lead to sealing failure, leading to higher difficulty in production line control, unstable product quality.
[0004] To achieve the above object, the utility model is realized by the following technical scheme: a kind of steering ball head self-sealing ball pin shell structure, including transmission rod, the end of the transmission rod is provided with ball pin shell, the inside of the ball pin shell is provided with ball bowl, the inner wall of the ball bowl is rotatably connected with ball head, the top of the ball head is provided with ball pin, the bottom of the ball pin shell is provided with folding edge, the inner wall of the folding edge is provided with inner bevel, the outer wall of the folding edge is provided with outer bevel, the inner wall of the ball pin shell is located at the top of inner bevel and is provided with limit along, the bottom of the ball bowl is provided with sealing cover, the inner bevel and limit along are all connected with sealing cover, the outer wall bottom of the ball bowl is provided with annular sealing groove, the top of the sealing cover is provided with sealing rubber ring, the sealing rubber ring is connected with annular sealing groove.
[0005] Preferably, the top of the ball pin shell is provided with sealing cover, the sealing cover is connected with ball pin, the outer wall top of the ball pin shell is provided with first limit groove, one end of the bottom of the sealing cover is provided with fixed chuck, the fixed chuck is connected with first limit groove, the outer wall of the fixed chuck is connected with clamp.
[0006] Preferably, the bottom of the ball pin shell is provided with a buckle cover, the inner wall of the buckle cover is provided with an inner protrusion, and the outer wall of the ball pin shell is provided with a second limiting groove at the bottom.
[0007] Preferably, the top of the buckle cover is provided with a buffer support at equal intervals, and the buffer support is connected with the sealing cover.
[0008] Preferably, the outer wall of the ball pin shell is provided with a reinforcing protrusion at equal intervals.
[0009] The utility model provides a kind of steering ball head self-sealing ball pin shell structure.It has the following beneficial effects: the steering ball head self-sealing ball pin shell structure, through the cooperation between ball pin shell, ball bowl, ball head, sealing cover, folded edge, inner bevel, outer bevel, limiting along, annular sealing groove and sealing rubber ring, the folded edge of ball pin shell bottom adopts inner and outer bevel design, can improve the convenience of folded edge riveting operation, make it and the side and bottom of sealing cover close contact, and limiting along is positioned to sealing cover, can guarantee the accuracy of folded edge riveting operation, make ball pin shell form self-sealing, prevent sealing cover from displacement, further effectively improve the sealing effect of sealing cover, and through the close fit of sealing rubber ring and annular sealing groove, further improve the sealing effect of ball pin shell bottom, can effectively prevent oil or moisture and other media from seeping from the gap between ball pin shell and sealing cover, ensure the long-term stable operation of steering ball head structure, so as to help reduce the processing difficulty of steering ball head structure, improve product quality and production efficiency.
[0010] Through the cooperation between ball pin shell, ball bowl, ball head, ball pin, sealing cover, first limiting groove, fixed clamp and clamp, by the fixed clamp of sealing cover bottom is clamped into the first limiting groove of ball pin shell, and is fixed using clamp, can effectively seal the top of ball pin shell, effectively prevent dust, moisture and other impurities from entering ball pin shell, further protect the normal operation of ball head and ball pin, and then ensure the stability and reliability of steering ball head structure, so as to help improve the service life of steering ball head structure. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is structure schematic diagram of the utility model;
[0012] Figure 2 It is structure schematic diagram of the utility model before riveting of ball pin shell, sealing cover and folded edge;
[0013] Figure 3 It is structure schematic diagram of the utility model after riveting of ball pin shell, sealing cover and folded edge;
[0014] Figure 4 It is Figure 1 Local enlarged view of area A in the utility model;
[0015] Figure 5 For Figure 1 A local enlarged view of the B region in the middle;
[0016] Figure 6 For Figure 2 A local enlarged view of the C region in the middle.
[0017] In the figure: 1, transmission rod; 2, ball pin shell; 3, ball bowl; 4, ball head; 5, ball pin; 6, sealing cover; 7, folded edge; 8, sealing cover; 9, first limiting groove; 10, fixed clamp; 11, clamp; 12, buckle cover; 13, inner protrusion; 14, second limiting groove; 15, buffer support; 16, reinforcing protrusion; 17, inner bevel; 18, outer bevel; 19, limiting edge; 20, annular sealing groove; 21, sealing rubber ring. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0019] In the prior art, the steering ball head structure is sealed by the folded edge at the bottom of the ball pin shell contacting the sealing cover after riveting and deforming. If the riveting and deforming amount is large, the ball head torque performance will be poor, and if the riveting and deforming amount is small, the sealing may fail, resulting in high difficulty in production line control and unstable product quality.
[0020] Therefore, the present application provides a self-sealing ball pin shell structure of a steering ball head, which is achieved by cooperation between the ball pin shell, the ball bowl, the ball head, the sealing cover, the folded edge, the inner bevel, the outer bevel, the limiting edge, the annular sealing groove and the sealing rubber ring. The folded edge at the bottom of the ball pin shell is designed with an inner and outer bevel to improve the convenience of the riveting operation of the folded edge, make it tightly contact the side surface and the bottom of the sealing cover, and limit the sealing cover through the limiting edge to ensure the accuracy of the riveting operation of the folded edge, realize the self-sealing of the ball pin shell, prevent displacement of the sealing cover, effectively improve the sealing effect of the sealing cover, and further improve the sealing effect of the bottom of the ball pin shell by tightly fitting the sealing rubber ring and the annular sealing groove, effectively prevent medium such as oil or water from penetrating from the gap between the ball pin shell and the sealing cover, ensure the long-term stable operation of the steering ball head structure, reduce the processing difficulty of the steering ball head structure, and improve the product quality and production efficiency.
[0021] Through the person skilled in the art, all electrical components in the case are connected with their adapted power supply through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should be referred to the working principle below. The electrical components are connected in the order of working principle, and the detailed connection means is the commonly known technology in the art. The working principle and process are mainly introduced below, and the electrical control is not described.
[0022] By Figures 1-6 It can be known that the self-sealing ball pin shell structure of steering ball head comprises a transmission rod 1, the transmission rod 1 is used for connecting with a steering pull rod, and the stable transmission of steering torque to the steering ball head structure is ensured. The end of the transmission rod 1 is provided with a ball pin shell 2, the inside of the ball pin shell 2 is provided with a ball bowl 3, the inner wall of the ball bowl 3 is rotatably connected with a ball head 4, the top of the ball head 4 is provided with a ball pin 5, the ball pin 5 is connected with a tire joint arm of an automobile, so that the torsion force from a steering wheel is transmitted to a tire, and automobile steering is realized. The bottom of the ball pin shell 2 is provided with a folded edge 7, the inner wall of the folded edge 7 is provided with an inner bevel 17, the outer wall of the folded edge 7 is provided with an outer bevel 18, the inner wall of the ball pin shell 2 is provided with a limiting edge 19 on the top of the inner bevel 17, the bottom of the ball bowl 3 is provided with a sealing cover 6, the inner bevel 17 and the limiting edge 19 are connected with the sealing cover 6 in a matched mode, the outer wall of the ball bowl 3 is provided with an annular sealing groove 20 at the bottom, the top of the sealing cover 6 is provided with a sealing rubber ring 21, and the sealing rubber ring 21 is connected with the annular sealing groove 20 in a matched mode.
[0023] In the implementation process, it is particularly worth pointing out that the transmission rod 1 is used to connect with the steering tie rod, to ensure the stable transmission of the steering torque to the steering ball head structure, the ball pin 5 is connected with the automobile tire knuckle arm, so as to transmit the torsion force from the steering wheel to the tire, realize the automobile steering, through the cooperation between the transmission rod 1, the ball pin shell 2, the ball bowl 3, the ball head 4 and the ball pin 5, the ball head 4 is installed in the inside of the ball pin shell 2 through the ball bowl 3, and the flexible rotation of the ball head 4 in a certain range is ensured, the flexible rotation and stable support of the steering ball head structure are realized, through the cooperation between the ball pin shell 2, the ball bowl 3, the ball head 4, the sealing cover 6 and the folded edge 7, after the ball bowl 3 and the ball head 4 are put into the ball pin shell 2, the sealing cover 6 is put into the bottom of the ball bowl 3, and the pressure is applied to the sealing cover 6 by riveting and pressing the folded edge 7, the sealing cover 6 is limited, the sealing cover 6 is extruded to the ball bowl 3, so as to achieve the effect of adjusting the gap, through the cooperation between the ball pin shell 2, the ball bowl 3, the ball head 4, the sealing cover 6, the folded edge 7, the inner inclined mouth 17, the outer inclined mouth 18 and the limiting edge 19, when the folded edge 7 is not riveted and pressed, the inner wall of the folded edge 7 and the top edge of the sealing cover 6 form effective line contact, to avoid the formation of too large gap between the sealing cover 6 and the folded edge 7, the folded edge 7 is designed with inner and outer inclined mouths 18, to improve the convenience of riveting and pressing operation of the folded edge 7, and in the riveting and pressing process, the folded edge 7 is deformed, tightly contacts with the side and bottom of the sealing cover 6, the sealing cover 6 is limited by the limiting edge 19, to ensure the accuracy of riveting and pressing operation of the folded edge 7, prevent the displacement of the sealing cover 6, effectively improve the sealing effect of the sealing cover 6, through the cooperation between the ball pin shell 2, the ball bowl 3, the sealing cover 6, the folded edge 7, the annular sealing groove 20 and the sealing rubber ring 21, after the riveting and pressing operation of the folded edge 7 is completed, the sealing rubber ring 21 is tightly attached to the annular sealing groove 20 under the pressure of the sealing cover 6, to further improve the sealing effect of the bottom of the ball pin shell 2, effectively prevent the medium such as oil or water from penetrating from the gap between the ball pin shell 2 and the sealing cover 6, ensure the long-term stable operation of the steering ball head structure, through the cooperation between the ball pin shell 2, the ball bowl 3, the ball head 4, the sealing cover 6, the folded edge 7, the inner inclined mouth 17, the outer inclined mouth 18, the limiting edge 19, the annular sealing groove 20 and the sealing rubber ring 21, the folded edge 7 at the bottom of the ball pin shell 2 is designed with inner and outer inclined mouths 18, to improve the convenience of riveting and pressing operation of the folded edge 7, make it tightly contact with the side and bottom of the sealing cover 6, and limit the sealing cover 6 by the limiting edge 19, to ensure the accuracy of riveting and pressing operation of the folded edge 7, realize the self-sealing of the ball pin shell 2, prevent the displacement of the sealing cover 6, effectively improve the sealing effect of the sealing cover 6, and through the tight attachment of the sealing rubber ring 21 and the annular sealing groove 20, further improve the sealing effect of the bottom of the ball pin shell 2, effectively prevent the medium such as oil or water from penetrating from the gap between the ball pin shell 2 and the sealing cover 6, ensure the long-term stable operation of the steering ball head structure, reduce the processing difficulty of the steering ball head structure, improve the product quality and production efficiency;
[0024] Further, the top of the ball pin shell 2 is provided with a sealing cover 8, which is connected with the ball pin 5, and the outer wall of the top of the ball pin shell 2 is provided with a first limiting groove 9, and the bottom of the sealing cover 8 is provided with a fixed clamping head 10, which is connected with the first limiting groove 9, and the outer wall of the fixed clamping head 10 is connected with a clamping hoop 11;
[0025] In the specific implementation process, it is particularly worth pointing out that through the cooperation between the ball pin shell 2, the ball bowl 3, the ball head 4, the ball pin 5, the sealing cover 8, the first limiting groove 9, the fixed clamping head 10 and the clamping hoop 11, by clamping the fixed clamping head 10 at the bottom of the sealing cover 8 into the first limiting groove 9 of the ball pin shell 2 and fixing it with the clamping hoop 11, the top of the ball pin shell 2 is effectively sealed, which effectively prevents impurities such as dust and water from entering the inside of the ball pin shell 2, further protects the normal operation of the ball head 4 and the ball pin 5, and ensures the stability and reliability of the steering ball head structure;
[0026] Further, the bottom of the ball pin shell 2 is provided with a buckle cover 12, the inner wall of the buckle cover 12 is provided with an inner protrusion 13, the outer wall of the bottom of the ball pin shell 2 is provided with a second limiting groove 14, and the inner protrusion 13 is connected with the second limiting groove 14;
[0027] In the specific implementation process, it is particularly worth pointing out that through the cooperation between the ball pin shell 2, the buckle cover 12, the inner protrusion 13 and the second limiting groove 14, the buckle cover 12 is made of rubber material, and the inner protrusion 13 is clamped into the second limiting groove 14, which realizes the close connection between the buckle cover 12 and the ball pin shell 2, further improves the sealing performance of the bottom of the ball pin shell 2, effectively prevents external dust and water from entering the inside of the ball pin shell 2, and protects the sealing cover 6, ensuring the long-term stable operation of the steering ball head;
[0028] Further, the top of the buckle cover 12 is provided with a buffer support 15 at equal intervals, which is connected with the sealing cover 6;
[0029] In the specific implementation process, it is particularly worth pointing out that through the cooperation between the sealing cover 6, the buckle cover 12 and the buffer support 15, the buffer support 15 is made of rubber material, and when the sealing cover 6 is impacted, the buffer support 15 is tightly contacted with the sealing cover 6 and slows down the impact, avoiding the damage of the buckle cover 12 caused by the impact force, improving the stability and service life of the buckle cover 12;
[0030] Further, the outer wall of the ball pin shell 2 is provided with a reinforcing protrusion 16 at equal intervals, which is used to improve the overall structural strength and stability of the ball pin shell 2, ensuring that it is not easy to deform or be damaged in the long-term use process, further improving the durability and reliability of the self-sealing ball pin shell structure of the steering ball head;
[0031] In the specific implementation process, it is worth pointing out that the reinforcing protrusion 16 is used to improve the overall structural strength and stability of the ball pin shell 2, to ensure that it is not easy to deform or damage during long-term use, and to further improve the durability and reliability of the self-sealing ball pin shell structure of the steering ball head.
[0032] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, inclusion of an element in a list of elements does not exclude other identical elements not expressly listed or inherent to the process, method, article, or apparatus.
[0033] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connecting" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited, the above-mentioned terms in the present application can be understood according to the specific meaning of the above-mentioned terms in the present application according to the specific circumstances.
[0034] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A self-sealing ball pin shell structure for a steering ball joint, comprising a transmission rod (1), characterized in that: The end of the transmission rod (1) is provided with a ball pin shell (2), the inside of the ball pin shell (2) is provided with a ball cup (3), the inner wall of the ball cup (3) is rotatably connected with a ball head (4), the top of the ball head (4) is provided with a ball pin (5), the bottom of the ball pin shell (2) is provided with a folded edge (7), the inner wall of the folded edge (7) is provided with an inner bevel (17), the outer wall of the folded edge (7) is provided with an outer bevel (18), the inner wall of the ball pin shell (2) is provided with a limiting edge (19) at the top of the inner bevel (17), the bottom of the ball cup (3) is provided with a sealing cover (6), the inner bevel (17) and the limiting edge (19) are both connected to the sealing cover (6), the bottom of the outer wall of the ball cup (3) is provided with an annular sealing groove (20), the top of the sealing cover (6) is provided with a sealing ring (21), the sealing ring (21) is connected to the annular sealing groove (20).
2. The self-sealing ball pin shell structure for a steering ball joint according to claim 1, characterized in that: The top of the ball pin shell (2) is provided with a sealing cover (8), which is connected to the ball pin (5). The top of the outer wall of the ball pin shell (2) is provided with a first limiting groove (9). One end of the bottom of the sealing cover (8) is provided with a fixing head (10), which is connected to the first limiting groove (9). The outer wall of the fixing head (10) is connected with a clamp (11).
3. The self-sealing ball pin shell structure for a steering ball joint according to claim 1, characterized in that: The bottom of the ball pin shell (2) is provided with a cover (12), the inner wall of the cover (12) is provided with an inner protrusion (13), and the bottom of the outer wall of the ball pin shell (2) is provided with a second limiting groove (14), and the inner protrusion (13) and the second limiting groove (14) are connected in cooperation.
4. The self-sealing ball pin shell structure for a steering ball joint according to claim 3, characterized in that: The top of the cover (12) is provided with buffer supports (15) at equal intervals, and the buffer supports (15) are connected to the sealing cover (6).
5. The self-sealing ball pin shell structure for a steering ball joint according to claim 1, characterized in that: The outer wall of the ball pin shell (2) is provided with reinforcing protrusions (16) at equal intervals.