Ball pin assembly

Abstract

The utility model belongs to the technical field of ball pins, and particularly relates to a ball pin assembly which comprises a rocker arm, a ball pin and a ball pin, a ball socket is arranged on the ball cup; the ball pin is arranged in the ball socket; the buffer assembly is arranged on a matching surface between the ball pin and the ball socket; the elastic sheath is arranged on the outer side of the end opening of the ball socket and covers the outer side of the ball pin; wherein the ball cup is assembled on the rocker arm after being connected with the mounting cavity.

Description

Technical Field

[0001] This utility model belongs to the field of ball head pin technology, and in particular relates to a ball head pin assembly. Background Technology

[0002] Ball joints are key components in automotive suspension and steering systems, primarily used to connect control arms, steering knuckles, and other components, enabling the wheels to move up and down and to steer.

[0003] Existing ball joints are prone to wear during long-term use, which increases the cost of use. In addition, the connection and mating surfaces between the ball joints and external components are often semi-open, making it easy for foreign objects to enter and affect the overall mating effect. Therefore, we have specially designed a ball joint assembly. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a ball joint assembly that improves durability and service life.

[0005] In view of this, the present invention provides a ball joint pin assembly, comprising:

[0006] A rocker arm, which has a mounting cavity;

[0007] A ball head seat, on which a ball socket is provided;

[0008] The ball head pin is located inside the ball socket.

[0009] A buffer assembly is disposed on the mating surface between the ball head pin and the ball socket.

[0010] An elastic sleeve is provided on the outside of the ball socket port and covers the outside of the ball head pin;

[0011] The ball head is connected to the mounting cavity and then assembled onto the rocker arm.

[0012] In the above technical solution, the buffer component further includes:

[0013] The built-in bearing is located inside the ball socket.

[0014] A limit stop is provided at the ball socket port;

[0015] The ball head pin is connected to the ball socket and cooperates with the built-in bearing and limit stop.

[0016] In the above technical solution, the elastic sheath further includes:

[0017] The corrugated sleeve is made of elastic material and has open ends on both sides.

[0018] The connecting edge is integrally formed on one side port of the corrugated sleeve, and the connecting edge is bent into a connecting groove.

[0019] The retaining ring, after engaging with the connecting groove, tightens the corrugated sleeve port and connects the corrugated elastic sheath to the ball head seat;

[0020] The contact edge is integrally formed on the other end of the corrugated sleeve. The contact edge abuts against the external components and is thick and wide.

[0021] Furthermore, the above technical solution also includes:

[0022] A boss is provided on the end face of the ball head seat outside the ball socket port, and a limiting flange is formed at the end of the boss;

[0023] The elastic sheath forms a limit with the limiting flange and is fixed to the boss;

[0024] The retaining ring tightens the corrugated sleeve port at the connecting edge and creates a limit between the connecting edge and the limiting flange.

[0025] Furthermore, the above technical solution also includes:

[0026] The connecting flange is set on the inner wall surface at the end of the boss and forms a tapered structure. The inner side of the connecting flange forms a platform structure.

[0027] The limit stop is installed on the platform structure.

[0028] In the above technical solution, the limiting block further includes:

[0029] The body and the mating surface between the body and the ball head pin are set as arc surfaces. The bottom of the body is provided with a skirt. Multiple countersunk holes are obliquely provided on the inner wall of the skirt. The exposed part of the skirt at the ball socket port is set as an inclined surface.

[0030] Reinforcing frames, an array of reinforcing frames, are installed on the countersunk hole.

[0031] Furthermore, the above technical solution also includes:

[0032] Spring washers are placed on the mating surface between the support bearing and the ball socket.

[0033] In the above technical solution, the exposed portion of the skirt at the ball socket port is further configured as an inclined surface.

[0034] The beneficial effects of this utility model are as follows:

[0035] 1. A buffer component is provided between the ball joint and the ball pin. The buffer component can soften the fit between the ball pin and the ball socket, thereby reducing wear on the ball pin and the ball socket, which helps to improve durability and extend service life.

[0036] 2. The ball joint pin, ball joint seat, and rocker arm are relatively independent but are fixed together through assembly, simplifying the rocker arm structure and reducing production costs.

[0037] 3. The elastic sleeve can seal the ball socket, thus allowing the ball head pin and ball head seat to fit in a relatively closed environment, thereby preventing dust from entering and affecting the fitting effect. Attached Figure Description

[0038] Figure 1 This is a perspective view of the present invention;

[0039] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0040] Figure 3 This is a schematic diagram of the elastic sheath of this utility model;

[0041] Figure 4 This is a schematic diagram of the limiting block of this utility model;

[0042] The markings in the diagram represent: 1. Rocker arm; 11. Mounting cavity; 2. Ball joint seat; 21. Ball socket; 3. Ball pin; 4. Buffer assembly; 41. Built-in bearing; 42. Limiting block; 421. Body; 4211. Curved surface; 4212. Skirt; 42121. Countersunk hole; 42122. Inclined surface; 422. Reinforcing frame; 5. Elastic sleeve; 51. Corrugated sleeve; 52. Connecting edge; 521. Connecting groove; 53. Snap ring; 54. Abutting edge; 6. Boss; 61. Limiting flange; 62. Connecting flange; 621. Platform structure; 7. Spring washer; 8. Narrowing section. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0044] Example 1:

[0045] This embodiment provides a ball joint pin assembly, including:

[0046] Rocker arm 1, with mounting cavity 11 provided on rocker arm 1;

[0047] Ball head seat 2, with a ball socket 21 provided on the ball head seat 2;

[0048] Ball head pin 3 is set inside ball socket 21;

[0049] Buffer assembly 4 is disposed on the mating surface between ball head pin 3 and ball socket 21;

[0050] The elastic sleeve 5 is disposed on the outside of the ball socket 21 port and covers the outside of the ball head pin 3;

[0051] Among them, the ball head seat 2 is connected to the mounting cavity 11 and then assembled onto the rocker arm 1.

[0052] As can be seen from this embodiment, a ball head pin assembly includes a ball head seat 2, a ball head pin 3, a buffer assembly 4, and an elastic sleeve 5;

[0053] The ball head seat 2 is pressed into the mounting cavity 11 to fix it together with the rocker arm 1. The surface of the ball head seat 2 can be knurled to provide better interference fit and fit with the rocker arm 1.

[0054] A ball socket 21 is provided on one end face of the ball head seat 2. A buffer assembly 4 is installed in the ball socket 21. After the ball head pin 3 is connected to the ball socket 21, it is engaged with the buffer assembly 4. The buffer assembly 4 protects the contact surface between the ball head pin 3 and the ball socket 21, thereby reducing the wear of the ball head pin 3 when it rotates in the ball socket 21, thus improving its service life.

[0055] The elastic sleeve 5 is set on one side end face of the ball socket 21 port and covers the outside of the ball head pin 3. During use, the elastic sleeve 5 seals the mating surface between the ball head pin 3 and the ball socket 21, thereby preventing dust from entering the ball socket 21 after long-term use and affecting the mating between the ball head pin 3 and the ball socket 21. In addition, the elastic sleeve can adaptively adjust its length according to the mating condition between the ball head pin 3 and the external parts, which helps to improve practicality.

[0056] A buffer assembly 4 is provided between the ball head seat 2 and the ball head pin 3. The buffer assembly 4 can soften the fit between the ball head pin 3 and the ball socket 21, thereby reducing the wear between the ball head pin 3 and the ball socket 21, which helps to improve durability and extend service life.

[0057] The ball head pin 3, ball head seat 2 and rocker arm 1 are relatively independent of each other, but are fixed together by assembly, which simplifies the structure of rocker arm 1 and reduces production costs;

[0058] The elastic sleeve 5 can seal the ball socket 21, thereby allowing the ball head pin 3 and the ball head seat 2 to engage in a relatively closed environment, thus preventing dust intrusion from affecting the engagement effect.

[0059] Example 2:

[0060] This embodiment provides a ball joint pin assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0061] Buffer component 4 includes:

[0062] An internal bearing 41 is disposed inside the ball socket 21;

[0063] Limiting block 42 is provided at the port of ball socket 21;

[0064] Among them, the ball head pin 3 is connected in the ball socket 21 and cooperates with the built-in bearing 41 and the limit stop 42.

[0065] As can be seen from this embodiment, the buffer assembly 4 includes a built-in bearing 41 and a limiting block 42;

[0066] The built-in bearing 41 is installed on the inner end face of the ball socket 21 and mates with the ball head portion of the ball head pin 3. Furthermore, the mating surface between the built-in bearing 41 and the ball head pin 3 is an arc surface 4211, which helps to increase the contact area between the built-in bearing 41 and the ball head pin 3, thereby improving the mating effect.

[0067] The limiting block 42 is connected to the inner wall at the end of the ball socket 21 and abuts against the lower side of the ball head portion of the ball pin 3. Furthermore, after the limiting block 42 is connected to the ball head seat 2, it forms a protruding limiting structure at the end of the ball socket 21, thereby limiting the movement of the ball pin 3 and preventing the ball pin 3 from dislodging from the ball socket 21 during use.

[0068] Example 3:

[0069] This embodiment provides a ball joint pin assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0070] The elastic sheath 5 includes:

[0071] The corrugated sleeve 51 is made of elastic material and has open ports on both sides.

[0072] The connecting edge 52 is integrally formed on one side port of the corrugated sleeve 51, and the connecting edge 52 is bent to form a connecting groove 521.

[0073] The retaining ring 53, after engaging with the connecting groove 521, tightens the port of the corrugated sleeve 51 and connects the corrugated elastic sheath 5 with the ball head seat 2.

[0074] The abutting edge 54 is integrally formed on the other side port of the corrugated sleeve 51. The abutting edge 54 abuts against the external component and is thick and wide.

[0075] As can be seen from this embodiment, the elastic sheath 5 includes a corrugated sleeve body 51, a connecting edge 52, a retaining ring 53, and an abutting edge 54;

[0076] The corrugated sleeve 51 is made of elastic material, and the connecting edge 52 and the abutting edge 54 are integrally formed on both sides of the corrugated sleeve 51.

[0077] Furthermore, the corrugated elastic sheath 5 is corrugated in shape and will elastically contract and swing during the stress process, so that it can adaptively adjust the elastic length according to the fit between the ball head pin 3 and the external parts during use, thereby helping to improve applicability;

[0078] The connecting edge 52 and the abutting edge 54 are formed at both ends of the corrugated sleeve 51. The connecting edge 52 has a connecting groove 521 formed on it. The connecting edge 52 is connected to the ball head seat 2 and is connected to the connecting groove 521 by the retaining ring 53. The port of the corrugated sleeve 51 at the connecting edge 52 is tightened and thus fixed to the ball head seat 2. The abutting edge 54 is relatively thick and has a wide end face, which can effectively improve the connection and fit when it abuts with the external parts (the thickness can prevent the corrugated sleeve 51 from directly contacting the external parts, and the width can increase the contact area).

[0079] Example 4:

[0080] This embodiment provides a ball joint pin assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0081] A boss 6 is provided on the end face of the ball head seat 2 outside the port of the ball socket 21, and a limiting flange 61 is formed at the end of the boss 6.

[0082] The elastic sheath 5 forms a limiting connection with the limiting flange 61 and is fixed to the boss 6.

[0083] The retaining ring 53 tightens the corrugated sleeve 51 port at the connecting edge 52 and forms a limit between the connecting edge 52 and the limiting flange 61.

[0084] As can be seen from this embodiment, the boss 6 is formed on one side of the ball head seat 2 and is located outside the ball socket 21 port, and the end of the boss 6 is formed with a limiting flange 61;

[0085] One end of the connecting edge 52 of the corrugated sleeve 51 is connected to the boss 6, and the connecting groove 521 on the connecting edge 52 will form a limit with the limiting flange 61. Then, the corrugated sleeve 51 port on one side of the connecting edge 52 is tightened by the cooperation of the retaining ring 53 and the connecting groove 521, so that the corrugated sleeve 51 and the ball head seat 2 are firmly connected together.

[0086] Example 5:

[0087] This embodiment provides a ball joint pin assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0088] A connecting flange 62 is provided on the inner wall surface at the port of the boss 6 and forms a tapering structure. A platform structure 621 is formed on the inner side of the connecting flange 62.

[0089] The limiting block 42 is installed on the platform structure 621.

[0090] As can be seen from this embodiment, the connecting flange 62 is formed at the port of the boss 6, and a platform structure 621 is formed on the inner wall of the boss 6. The limiting block 42 is connected to the platform structure 621, and the connecting flange 62 plays an auxiliary fixing role.

[0091] Furthermore, the limiting block 42 is connected to the ball socket 21 by the constriction structure at the boss 6 through compression, and is engaged with the ball head part of the ball head pin 3.

[0092] Example 6:

[0093] This embodiment provides a ball joint pin assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0094] Limit block 42 includes:

[0095] The body 421 has a mating surface 4211 with the ball head pin 3. The bottom of the body 421 is provided with a skirt 4212. Multiple countersunk holes 42121 are obliquely provided on the inner side wall of the skirt 4212. The exposed part of the skirt 4212 at the end of the ball socket 21 is provided with an inclined surface 42122.

[0096] Reinforcing frame 422, the array of reinforcing frames 422 is set on the countersunk hole 42121.

[0097] As can be seen from this embodiment, the limiting block 42 includes a body 421 and a reinforcing frame 422, and the body 421 is made of rubber material;

[0098] The mating surface between the body 421 and the ball pin 3 is set as an arc surface, and the bottom of the body 421 is formed with a skirt 4212;

[0099] The body 421 is made of rubber material, and the skirt 4212 can be deformed during the connection process of the body 421 to connect to the inner side of the boss 6 and create a limit between it and the connecting flange 62. Furthermore, by opening a countersunk hole 42121 on the inner wall of the skirt 4212 and installing a reinforcing frame 422 in the countersunk hole 42121, the reinforcing frame 422 can support the frame of the skirt 4212, thereby forming a skeleton structure, so that the fit between the limiting block 42 and the ball head of the ball pin 3 is good.

[0100] Example 7:

[0101] This embodiment provides a ball joint pin assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0102] Spring washer 7 is disposed on the mating surface between the support bearing and the ball socket 21.

[0103] As can be seen in this embodiment, the spring washer 7 is installed on the mating surface between the support bearing and the ball socket 21;

[0104] The spring washer 7 is disposed on the inner end face of the ball socket 21 and abuts against the lower side of the built-in bearing;

[0105] After assembly, the spring washer 7 is compressed, causing the built-in bearing to float radially within the inner hole, relying on the spring washer 7.

[0106] Example 8:

[0107] This embodiment provides a ball joint pin assembly, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0108] The exposed portion of the skirt 4212 at the end of the ball socket 21 is set as an inclined surface 42122, and the portion of the ball head pin 3 at the end of the ball socket 21 is provided with a narrowing section 8.

[0109] As can be seen from this embodiment, by setting the exposed part of the ball joint at the end of the ball socket 21 as an inclined surface 42122, a recessed area will be formed at the end of the ball socket 21 after the limiting block 42 is connected to the ball head seat 2, and the corresponding part of the ball head pin 3 will be set as a narrow section 8. In use, this helps to increase the deflection angle of the ball head pin 3 on the ball head seat 2, thereby improving the performance.

[0110] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A ball stud assembly characterized by, The utility model relates to a ball head assembly for a rocker arm, comprising: a rocker arm (1) provided with a mounting cavity (11); a ball head seat (2) provided with a ball socket (21); a ball head pin (3) arranged in the ball socket (21); a buffer assembly (4) arranged on the fitting surface between the ball head pin (3) and the ball socket (21); a flexible sheath (5) arranged outside the ball socket (21) port and covering the outside of the ball head pin (3); wherein the ball head seat (2) is connected to the mounting cavity (11) and assembled on the rocker arm (1).

2. A ball joint assembly according to claim 1, wherein The buffer assembly (4) comprises: an inner bearing (41) arranged inside the ball socket (21); a limiting stopper (42) arranged at the ball socket (21) port; wherein the ball head pin (3) is connected in the ball socket (21) and cooperates with the inner bearing (41) and the limiting stopper (42).

3. A ball stud assembly according to claim 2, wherein, The flexible sheath (5) comprises: a corrugated sleeve body (51) made of elastic material, the two side ports of the corrugated sleeve body (51) being open; a connecting edge (52) integrally formed on one side port of the corrugated sleeve body (51), the connecting edge (52) being bent to form a connecting groove (521); a clamping ring (53) cooperating with the connecting groove (521) to tighten the port of the corrugated sleeve body (51) and fix the corrugated flexible sheath (5) to the ball head seat (2); a contact edge (54) integrally formed on the other side port of the corrugated sleeve body (51), the contact edge (54) abutting against an external component, the contact edge (54) being thick and wide.

4. A ball joint assembly according to claim 3, further characterized by The utility model further comprises: a boss (6) arranged on the end face of the ball head seat (2) outside the ball socket (21) port, the end of the boss (6) being formed with a limiting flange (61); wherein the flexible sheath (5) is limited between the limiting flange (61) and fixed to the boss (6); wherein the clamping ring (53) tightens the port of the corrugated sleeve body (51) at the connecting edge (52) and forms a limit between the connecting edge (52) and the limiting flange (61).

5. The ball stud assembly of claim 4 further comprising The utility model further comprises: a connecting flange (62) arranged on the inner side wall face at the boss (6) port and forming a closed structure, the inner side of the connecting flange (62) forming a platform structure (621); wherein the limiting stopper (42) is arranged on the platform structure (621).

6. A ball joint assembly according to claim 5, wherein: The limiting stopper (42) comprises: a body (421) with an arc surface (4211) arranged between the ball head pin (3) and the cooperating surface, a skirt (4212) arranged at the bottom of the body (421), a plurality of counterbores (42121) obliquely arranged on the inner side wall face of the skirt (4212), and an inclined surface (42122) arranged on the exposed part of the skirt (4212) at the ball socket (21) port; a reinforcing frame (422) arranged on the counterbores (42121).

7. A ball stud assembly according to claim 6 further characterised by Comprising: A spring washer (7) is arranged on the mating surface between the support bearing and the ball socket (21).

8. A ball joint assembly according to claim 7, wherein: The exposed part of the skirt (4212) at the port of the ball socket (21) is arranged as an inclined surface (42122).

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