Ball head assembly with self-lubricating structure

Abstract

The utility model discloses a ball head assembly with a self-lubricating structure, which relates to the technical field of motor vehicle parts, solves the problems of convenience and comprehensive addition of lubricating oil, and comprises a support, a ball seat is fixed at one end of the support, a ball head is movably connected in the ball seat, a ball pin is fixed at the top end of the ball head, and the ball pin is movably connected with the ball seat. A lubricating mechanism is arranged between the ball head and the ball seat; the lubricating mechanism comprises a liner which is fixed on one side of the ball head on the inner wall of the ball seat. Lubricating oil is introduced from the external oil storage box through the feeding pipe under the control of the electromagnetic valve and is conveyed into the first extrusion ring and the second extrusion ring through the conveying pipe, and meanwhile the lubricating oil can conveniently circulate in the first extrusion ring and the second extrusion ring through the communicating pipe; when the ball head is disassembled and assembled, the first extrusion ring and the second extrusion ring are pressed, lubricating oil is sprayed out through the oil outlet, the ball head can be comprehensively coated, the lubricating effect is achieved, and the trouble and inconvenience of manual disassembly and assembly coating are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of motor vehicle parts, in particular to a ball head assembly with a self-lubricating structure. Background Art

[0002] Ball joint assemblies, such as the steering tie rod ball pin in the automobile steering gear and the automobile front suspension swing arm ball pin, are key components in various types of automobile parts and are widely used in automobiles. Specifically, ball joint assemblies can be used in automobile suspension systems and automobile steering systems.

[0003] The ball joint assembly disclosed in the Chinese utility model (announcement number: CN212028314U) has a mounting hole on the ball head seat, and the minimum aperture of the mounting hole is larger than the diameter of the ball head of the ball pin; the ball head of the ball pin is installed in the mounting hole, and a bushing is provided between the ball head of the ball pin and the ball head seat; the bushing is directly formed between the ball head and the mounting hole, the inner surface of the bushing fits with the outer surface of the ball head, and the outer surface of the bushing fits with the inner wall of the mounting hole and is provided with a limiting structure. The inner and outer surfaces of the bushing of the utility model are completely fitted with the outer surface of the ball head and the inner wall of the mounting hole, which can ensure that when the ball pin rotates, the contact pressure at each position of the ball head and the inner surface of the bushing is roughly equal, and the swing torque values ​​between different positions of the ball pin are also equal, which reduces the tolerance of the swing torque value of the ball pin, improves the consistency of the swing torque value, improves the stability of torque transmission, and avoids torque transmission errors; ensures that the ball head of the ball pin rotates flexibly and the steering control mechanism runs smoothly

[0004] In the process of realizing the utility model, the inventors found that there are at least the following problems in the technology: in the prior art, the stability of the torque transmission of the ball head assembly is improved by components such as bushings, but in the actual use process, the sliding friction between the ball head and the ball seat becomes larger and larger, and it is necessary to add lubricating grease, and manual addition requires disassembly and assembly before the ball head can be fully coated. Therefore, a ball head assembly with a self-lubricating structure is now proposed. Utility Model Content

[0005] In order to improve the problem of convenient and comprehensive addition of lubricating oil, the utility model provides a ball head assembly with a self-lubricating structure.

[0006] The utility model provides a ball head assembly with a self-lubricating structure, which adopts the following technical solutions:

[0007] A ball head assembly with a self-lubricating structure comprises a bracket, a ball seat is fixed at one end of the bracket, a ball head is movably connected inside the ball seat, a ball pin is fixed at the top of the ball head, and a lubrication mechanism is arranged between the ball head and the ball seat;

[0008] The lubrication mechanism includes a gasket, which is fixed on one side of the ball head of the inner wall of the ball seat, and a first extrusion ring is embedded in the upper part of the interior of the gasket, and a second extrusion ring is installed in the lower part of the interior of the gasket, a connecting pipe is connected between the second extrusion ring and the first extrusion ring, and the outer walls of the first extrusion ring and the second extrusion ring are provided with oil outlets.

[0009] By adopting the above technical solution, when the lubricating oil enters the first extrusion ring and the second extrusion ring, the movement of the ball head will press the first extrusion ring and the second extrusion ring, so that the lubricating oil can be sprayed out through the oil outlet, and can be fully coated on the outer wall of the ball head to achieve a full lubrication effect.

[0010] Optionally, the outer dimensions of the first extrusion ring are consistent with those of the second extrusion ring, and the first extrusion ring is connected to the second extrusion ring through a connecting pipe.

[0011] By adopting the above technical solution, the first extrusion ring and the second extrusion ring are connected through the connecting pipe, so as to avoid that one of them has less internal lubricating oil and is difficult to fully coat.

[0012] Optionally, a solenoid valve is embedded on one side of the top end of the bracket, and a delivery pipe is connected between the solenoid valve and the first extrusion ring, and a feed pipe is connected to the input end of the solenoid valve.

[0013] By adopting the above technical solution, the lubricating oil in the external oil storage box can be introduced through the opening and closing of the solenoid valve in coordination with the delivery pipe and the feed pipe, avoiding the inconvenience of manual addition and the inability to fully coat.

[0014] Optionally, a supporting mechanism is provided at the bottom end of the bracket, and the supporting mechanism includes a fixing ring, which is fixed at a position corresponding to the ball seat at the bottom end of the bracket, and a connecting shell is provided at the bottom of the fixing ring.

[0015] By adopting the above technical solution, the bottom end of the ball seat is sealed through the cooperation of the connecting shell and the fixing ring to prevent dust and the like from entering and affecting the ball head.

[0016] Optionally, the supporting mechanism further comprises a supporting frame, the supporting frame is fixed to the inner wall of the fixing ring, a damping spring is embedded at the top end of the supporting frame, and the top end of the damping spring is connected to the supporting shell.

[0017] By adopting the above technical solution, the supporting shell is pushed by the elasticity of the damping spring, so that it fits and contacts the ball head, and plays a certain shock-absorbing role during the movement.

[0018] Optionally, the fixing ring is threadedly connected to the connecting shell, and the fixing ring is detachably connected to the supporting frame via bolts.

[0019] By adopting the above technical solution, through the threaded connection between the fixing ring and the connecting shell, it is convenient to quickly disassemble and open, maintain the internal components, clean up the waste oil, etc.

[0020] Optionally, the support frame is elastically connected to the supporting shell via a damping spring, and the supporting shell is tightly fitted to the ball head.

[0021] By adopting the above technical solution, the shape of the supporting shell is consistent with the bottom end of the ball head, which is convenient for full fitting and limiting to avoid misalignment or looseness.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. The utility model introduces lubricating oil from an external oil storage box through a feed pipe under the control of an electromagnetic valve, and delivers it to the inside of the first extrusion ring and the second extrusion ring respectively through a delivery pipe. At the same time, the lubricating oil is facilitated to flow in the first extrusion ring and the second extrusion ring through a connecting pipe. When the ball head rotates, the first extrusion ring and the second extrusion ring are pressed to allow the lubricating oil to spray out through the oil outlet, which can fully coat the ball head and achieve a lubricating effect, avoiding the trouble and inconvenience of manual disassembly and coating.

[0024] 2. The utility model makes the inner ring diameter of the fixing ring consistent with the diameter of the ball seat, and the external threaded connection oil connection shell is convenient for quick disassembly and assembly to maintain the internal components or clean up the waste oil, etc. At the same time, the fixing ring is fixed to the support frame by bolts, and the damping spring is installed and supported to elastically push the supporting shell, and the supporting shell is in contact with the ball head, thereby achieving a certain shock-absorbing effect when the ball head moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model.

[0026] Figure 2 It is a schematic diagram of the liner structure of the utility model.

[0027] Figure 3 It is a schematic diagram of the structure of the first extrusion ring of the utility model.

[0028] Figure 4 It is a schematic diagram of the structure of the damping spring of the utility model.

[0029] Description of reference numerals:

[0030] 1. Bracket; 2. Ball seat; 3. Ball pin; 4. Ball head; 5. Lubrication mechanism; 501. Gasket; 502. First extrusion ring; 503. Oil outlet; 504. Connecting pipe; 505. Second extrusion ring; 6. Solenoid valve; 7. Delivery pipe; 8. Feed pipe; 9. Support mechanism; 901. Connecting shell; 902. Fixing ring; 903. Support frame; 904. Damping spring; 905. Support shell. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] Please refer to Figure 1-3 A ball head assembly with a self-lubricating structure includes a bracket 1, a ball seat 2 is fixed at one end of the bracket 1, a ball head 4 is movably connected inside the ball seat 2, a ball pin 3 is fixed at the top of the ball head 4, and a lubricating mechanism 5 is arranged between the ball head 4 and the ball seat 2; the lubricating mechanism 5 includes a gasket 501, the gasket 501 is fixed to one side of the ball head 4 on the inner wall of the ball seat 2, a first extrusion ring 502 is embedded in the upper part of the gasket 501, a second extrusion ring 505 is installed at the lower part of the gasket 501, a connecting pipe 504 is connected between the second extrusion ring 505 and the first extrusion ring 502, an oil outlet 503 is opened on the outer wall of the first extrusion ring 502 and the second extrusion ring 505, the outer dimensions of the first extrusion ring 502 are consistent with the outer dimensions of the second extrusion ring 505, and the first extrusion ring 50 2 is connected with the second extrusion ring 505 through the connecting pipe 504, a solenoid valve 6 is embedded on one side of the top of the bracket 1, a delivery pipe 7 is connected between the solenoid valve 6 and the first extrusion ring 502, and a feed pipe 8 is connected to the input end of the solenoid valve 6; the lubricating oil is introduced from the external oil storage box through the feed pipe 8 through the control of the solenoid valve 6, and is respectively delivered to the inside of the first extrusion ring 502 and the second extrusion ring 505 through the delivery pipe 7, and at the same time, the lubricating oil is facilitated to flow in the first extrusion ring 502 and the second extrusion ring 505 through the connecting pipe 504. When the ball head 4 rotates, it presses the first extrusion ring 502 and the second extrusion ring 505, so that the lubricating oil is sprayed out through the oil outlet 503, which can fully coat the ball head 4 and play a lubricating effect, avoiding the trouble and inconvenience of manual disassembly and coating.

[0033] Reference Figure 1 and Figure 4The bottom end of the bracket 1 is provided with a supporting mechanism 9, which includes a fixing ring 902, which is fixed at the position of the bottom end of the bracket 1 corresponding to the ball seat 2, and a connecting shell 901 is sleeved on the bottom of the fixing ring 902. The supporting mechanism 9 also includes a support frame 903, which is fixed to the inner wall of the fixing ring 902, and a damping spring 904 is embedded on the top of the support frame 903, and a supporting shell 905 is connected to the top of the damping spring 904. The fixing ring 902 is threadedly connected to the connecting shell 901, and the fixing ring 902 is connected to the support frame 903 by bolts. Removable connection, the support frame 903 is elastically connected to the supporting shell 905 through the damping spring 904, and the supporting shell 905 fits tightly with the ball head 4; the inner ring diameter of the fixing ring 902 is consistent with the diameter of the ball seat 2, and the external thread is connected to the oil connecting shell 901, which is convenient for quick disassembly and assembly to maintain the internal components or clean up the waste oil, etc. At the same time, the fixing ring 902 fixes the support frame 903 through bolts, installs and supports the damping spring 904 to elastically push the supporting shell 905, and the supporting shell 905 contacts the ball head 4, thereby having a certain shock-absorbing effect when the ball head 4 moves.

[0034] The implementation principle of the utility model is as follows: the bracket 1, the ball seat 2, the ball pin 3 and the ball head 4 form an assembly, and the lubricating oil is introduced through the feed pipe 8 through the opening and closing of the solenoid valve 6, and is transported to the inside of the first extrusion ring 502 and the second extrusion ring 505 through the delivery pipe 7, and the gap between the ball head 4 and the ball seat 2 is filled through the liner 501. When the ball head 4 moves, the first extrusion ring 502 or the second extrusion ring 505 is pressed tightly, and the lubricating oil flows out through the oil outlet 503, which can fully lubricate the ball head 4, and the lubricating oil is allowed to circulate in the first extrusion ring 502 or the second extrusion ring 505 through the connecting pipe 504; the fixing ring 902 corresponds to the ball seat 2 and is fixed to the bottom end of the bracket 1, and is threadedly connected to the connecting shell 901 for easy disassembly and assembly, and the ball seat 2 is maintained or cleaned. At the same time, the support frame 903 fixedly installed by the fixing ring 902 elastically pushes the supporting shell 905 through the damping spring 904, and contacts the bottom end of the ball head 4, thereby achieving a certain shock-absorbing effect.

[0035] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A ball head assembly with a self-lubricating structure, comprising a bracket (1), characterized in that: A ball seat (2) is fixed to one end of the bracket (1), and a ball head (4) is movably connected inside the ball seat (2), a ball pin (3) is fixed to the top of the ball head (4), and a lubrication mechanism (5) is provided between the ball head (4) and the ball seat (2); The lubrication mechanism (5) comprises a gasket (501), the gasket (501) being fixed to one side of the ball head (4) on the inner wall of the ball seat (2), and a first extrusion ring (502) being embedded in the upper part of the gasket (501), a second extrusion ring (505) being installed in the lower part of the gasket (501), a connecting pipe (504) being connected between the second extrusion ring (505) and the first extrusion ring (502), and an oil outlet (503) being provided on the outer walls of the first extrusion ring (502) and the second extrusion ring (505).

2. The ball head assembly with a self-lubricating structure according to claim 1, characterized in that: The outer dimensions of the first extrusion ring (502) are consistent with those of the second extrusion ring (505), and the first extrusion ring (502) is connected to the second extrusion ring (505) via a connecting pipe (504).

3. The ball head assembly with a self-lubricating structure according to claim 1, characterized in that: A solenoid valve (6) is embedded on one side of the top end of the bracket (1), a delivery pipe (7) is connected between the solenoid valve (6) and the first extrusion ring (502), and a feed pipe (8) is connected to the input end of the solenoid valve (6).

4. The ball head assembly with a self-lubricating structure according to claim 1, characterized in that: A supporting mechanism (9) is provided at the bottom end of the bracket (1), and the supporting mechanism (9) comprises a fixing ring (902). The fixing ring (902) is fixed at a position of the bottom end of the bracket (1) corresponding to the ball seat (2), and a connecting shell (901) is sleeved on the bottom of the fixing ring (902).

5. The ball head assembly with a self-lubricating structure according to claim 4, characterized in that: The supporting mechanism (9) further comprises a supporting frame (903), wherein the supporting frame (903) is fixed to the inner wall of the fixing ring (902), and a damping spring (904) is embedded at the top end of the supporting frame (903), and the top end of the damping spring (904) is connected to a supporting shell (905).

6. The ball head assembly with a self-lubricating structure according to claim 4, characterized in that: The fixing ring (902) is threadedly connected to the connection shell (901), and the fixing ring (902) is detachably connected to the support frame (903) via bolts.

7. The ball head assembly with a self-lubricating structure according to claim 5, characterized in that: The support frame (903) is elastically connected to the supporting shell (905) via a damping spring (904), and the supporting shell (905) is tightly fitted to the ball head (4).

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