Novel knuckle bearing V-shaped pusher

Abstract

The utility model relates to automobile parts, and provides a novel knuckle bearing V pusher which comprises a first connecting rod, a second connecting rod, a V-end ball head sub assembly, a first ball pin sub assembly and a second ball pin sub assembly, and the V-end ball head sub assembly comprises a mounting seat, a ball head, a metal bearing outer ring, a ball seat and an end cover. A containing cavity between the ball seat and the end cover and a containing cavity between the ball seat and the installation seat are both filled with lubricating grease, a first spiral oil channel and a second spiral oil channel are formed in the inner wall of the metal bearing outer ring, and an oil channel inlet of the first spiral oil channel is communicated with the lubricating grease in the containing cavity between the ball seat and the end cover. An oil duct inlet of the second spiral oil duct is communicated with lubricating grease in a containing cavity between the ball seat and the mounting seat, and an oil duct outlet of the first spiral oil duct and an oil duct outlet of the second spiral oil duct are both located in a bearing contact area between the metal bearing outer ring and the ball head. The problems that an existing thrust rod assembly is short in service life, and potential safety hazards exist in use of a driver are solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a novel joint bearing V-shaped pusher. Background Technology

[0002] With the development of economy and science and technology, automobiles have become the primary means of transportation for people. Automotive parts are the various units that make up a car and the products that serve the vehicle. There are many types of automotive parts, and as people's living standards improve, their car consumption is increasing, leading to a growing market for automotive parts. In recent years, automotive parts manufacturers have also developed rapidly. With the rapid development of automotive parts manufacturing processes, manufacturing equipment and auxiliary devices are becoming increasingly efficient and sophisticated. For example, automotive parts such as V-bars and torsion bars have largely achieved automated processing.

[0003] The V-end ball joint bearing (also known as the thrust rod assembly) is a crucial component of automotive suspension systems. During vehicle operation, it primarily functions to transmit force, provide guidance and restraint, and dampen vibrations. In existing heavy-duty commercial vehicles, the thrust rod assembly is subjected to complex forces over extended periods, making the rubber inside the V-end ball joint sub-assembly prone to tearing or extrusion from the end cap, thus reducing the assembly's lifespan. In mining areas with exceptionally harsh road conditions, frequent overloading causes continuous vehicle vibration and generates significant torsional torque, exacerbating rubber tearing and extrusion. Therefore, to improve the thrust rod assembly's lifespan, ensure driver safety, and avoid frequent replacements that increase costs, it is urgent to optimize the structure of the V-end ball joint sub-assembly within the thrust rod assembly. Utility Model Content

[0004] Therefore, in view of the above problems, this utility model proposes a new type of spherical bearing V-push that ensures safe use, avoids frequent replacements that increase costs, and extends service life.

[0005] To solve this technical problem, the present invention adopts the following solution: a novel spherical plain bearing V-shaped pusher, comprising a first connecting rod, a second connecting rod, a V-end ball head sub-assembly, a first ball pin sub-assembly, and a second ball pin sub-assembly. The V-end ball head sub-assembly is connected to the first ball pin sub-assembly via the first connecting rod, and the V-end ball head sub-assembly is connected to the second ball pin sub-assembly via the second connecting rod. Both the first and second ball pin sub-assemblies include a ball pin and a friction pair outer ring. The middle part of the ball pin is spherical, and the outer side of the ball pin is fitted with a mating friction pair outer ring, forming a universal friction pair. The V-end ball head sub-assembly includes a mounting base, a ball head, a metal bearing outer ring, a ball seat, and an end cap. The ball head is fixed on the mounting base. The outer ring of the metal bearing is installed inside the ball seat and rotatably fitted onto the ball head. The end cap is placed on the top of the ball seat. A sealing sleeve is provided between the mounting base and the ball seat, and the cavity between the ball seat and the end cap, as well as the cavity between the ball seat and the mounting base, is filled with grease. The inner wall of the outer ring of the metal bearing has a first spiral oil passage and a second spiral oil passage. The oil passage inlet of the first spiral oil passage is connected to the grease in the cavity between the ball seat and the end cap, and the oil passage inlet of the second spiral oil passage is connected to the grease in the cavity between the ball seat and the mounting base. The oil passage outlets of the first spiral oil passage and the second spiral oil passage are both located in the bearing contact area between the outer ring of the metal bearing and the ball head.

[0006] In a further improvement, both the first and second connecting rods are 7075-T7351 aluminum alloy connecting rods.

[0007] In a further improvement, both the ball head and the outer ring of the metal bearing are first subjected to micro-arc oxidation surface treatment to form a ceramic film layer, and the surface of the ceramic film layer of the ball head and the outer ring of the metal bearing is also provided with a diamond-like coating.

[0008] By adopting the aforementioned technical solution, the beneficial effects of this utility model are as follows: By setting a metal bearing outer ring and a ball head to rotate in the V-end ball head sub-assembly, and providing a first spiral oil passage and a second spiral oil passage on the inner wall of the metal bearing outer ring, the grease achieves self-lubrication between the metal bearing outer ring and the ball head under the action of centrifugal force, making the lubrication of the V-end ball head sub-assembly smooth, greatly reducing the friction and wear between the metal bearing outer ring and the ball head, ensuring the safe use of the V-end ball head sub-assembly, avoiding frequent replacements that increase costs, and extending service life. By first treating the ball head and the metal bearing outer ring with micro-arc oxidation to form a ceramic film layer, and further providing a diamond-like coating on the surface of the ceramic film layer of the ball head and the metal bearing outer ring, the oscillating friction wear rate between the ball head and the metal bearing outer ring is reduced by 1 / 3 compared to the wear rate between conventional steel products, greatly extending service life. Furthermore, the first connecting rod and the second connecting rod are both 7075-T7351 aluminum alloy connecting rods, enabling the product of this utility model to achieve a lightweight structural design, contributing more than 1.5% to the range reduction, making it more suitable for the application of new energy vehicles and allowing for widespread application. Attached Figure Description

[0009] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0010] Figure 2 This is a partial cross-sectional structural schematic diagram of an embodiment of the present utility model. Detailed Implementation

[0011] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0012] refer to Figures 1-2The preferred novel joint bearing V-shaped pusher of this utility model includes a first connecting rod 1, a second connecting rod 2, a V-end ball head sub-assembly 3, a first ball pin sub-assembly 4, and a second ball pin sub-assembly 5. Both the first connecting rod 1 and the second connecting rod 2 are 7075-T7351 aluminum alloy connecting rods. The V-end ball head sub-assembly 3 is connected to the first ball pin sub-assembly 4 via the first connecting rod 1, and the V-end ball head sub-assembly 3 is connected to the second ball pin sub-assembly 5 via the second connecting rod 2. Both the pin assembly 4 and the second ball pin assembly 5 include ball pins 41 and 51 and friction pair outer rings 42 and 52. The middle part of the ball pins 41 and 51 is spherical, and the outer sides of the ball pins 41 and 51 are fitted with the friction pair outer rings 42 and 52, forming a universal joint friction pair. The V-end ball head assembly 3 includes a mounting base 31, a ball head 32, a metal bearing outer ring 33, a ball seat 34, and an end cap 35. The ball head 32 is fixed to the mounting base 31 by a center bolt. The outer ring 33 of the metal bearing is installed inside the ball seat 34 and is rotatably fitted onto the ball head 32. The end cap 35 covers the top of the ball seat 34. A sealing sleeve 36 is provided between the mounting base 31 and the ball seat 34, and the upper part of the sealing sleeve 36 is fixed to the ball seat 34 by a clamp. The cavity between the ball seat 34 and the end cap 35, as well as the cavity between the ball seat 34 and the mounting base 31, are filled with grease 37. The bearing is provided with a first spiral oil passage 331 and a second spiral oil passage 332. The oil passage inlet of the first spiral oil passage 331 is connected to the grease 37 in the cavity between the ball seat 34 and the end cover 35. The oil passage inlet of the second spiral oil passage 332 is connected to the grease 37 in the cavity between the ball seat 34 and the mounting base 31. The oil passage outlets of the first spiral oil passage 331 and the second spiral oil passage 332 are both located in the bearing contact area between the outer ring 33 of the metal bearing and the ball head 32.

[0013] Both the ball head 32 and the outer ring 33 of the metal bearing are first subjected to micro-arc oxidation surface treatment to form a ceramic film layer, and the surface of the ceramic film layer of the ball head 32 and the outer ring 33 of the metal bearing is also provided with a diamond-like coating.

[0014] When the ball head 32 and the outer ring 33 of the metal bearing are subjected to micro-arc oxidation:

[0015] Electrolyte: Silicate system (Na2SiO3 10g / L, KOH 2g / L), parameters: voltage 450V, frequency 1000Hz, time 30min, result: 20-30μm ceramic layer (hardness ≥1500 HV, friction coefficient 0.15) was generated.

[0016] The ball head 32 and the outer ring of the metal bearing 33 are coated with diamond-like carbon using magnetron sputtering (2 μm thick, sp³ bond content ≥70%).

[0017] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A new type of joint bearing V push, comprising a first connecting rod, a second connecting rod, a V end ball head subassembly, a first ball pin subassembly and a second ball pin subassembly, the V end ball head subassembly is connected with the first ball pin subassembly through the first connecting rod, the V end ball head subassembly is connected with the second ball pin subassembly through the second connecting rod, the first ball pin subassembly and the second ball pin subassembly both comprise a ball pin and a friction pair outer ring, the middle part of the ball pin is spherical, and the outer side of the ball pin is equipped with a friction pair outer ring matched therewith, and the two form a friction pair in the form of universal movement, characterized in that: The V-end ball head subassembly comprises a mounting seat, a ball head, a metal bearing outer ring, a ball seat and an end cover, the ball head is fixed on the mounting seat, the metal bearing outer ring is installed in the ball seat and rotatably sleeved on the ball head, the end cover is covered on the top of the ball seat, a sealing sleeve is sleeved on the mounting seat between the mounting seat and the ball seat, the cavities between the ball seat and the end cover and between the ball seat and the mounting seat are filled with lubricating grease, the inner wall of the metal bearing outer ring is provided with a first spiral oil channel and a second spiral oil channel, the oil inlet of the first spiral oil channel is communicated with the lubricating grease in the cavity between the ball seat and the end cover, the oil inlet of the second spiral oil channel is communicated with the lubricating grease in the cavity between the ball seat and the mounting seat, and the oil outlets of the first spiral oil channel and the second spiral oil channel are located in the bearing contact area between the metal bearing outer ring and the ball head.

2. The new knuckle bearing V-push of claim 1, characterized by: The first connecting rod and the second connecting rod are both made of 7075-T7351 aluminum alloy.

3. The new type of knuckle bearing V-push as claimed in claim 1, characterized in that: The ball head and the metal bearing outer ring are both provided with ceramic film layers through micro-arc oxidation surface treatment, and the ceramic film layer surfaces of the ball head and the metal bearing outer ring are further provided with diamond-like coating.

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