Complex structure of wrought aluminum control arm

Abstract

The invention discloses a complex structure of a wrought aluminum control arm, and relates to the technical field of automobile accessories, the complex structure comprises an arm lever main body, positioning holes are reserved in the two ends of the arm lever main body, spherical hinge assemblies are arranged in the positioning holes in a welding mode, bearing shafts used for connecting other parts in a suspension of the spherical hinge assemblies are arranged in the spherical hinge assemblies in a sleeved mode, and the bearing shafts are connected with the wrought aluminum control arm. The outer wall of the curved surface of the armed lever body is fixedly connected with a lining. According to the spherical hinge assembly, the spherical net channel composed of the annular groove and the communicating groove is formed in the spherical hinge assembly and matched with the rotatable elliptical ball and the blade structure, and uniform distribution and dynamic circulation of lubricating oil between the outer wall of the ball body and the ball outer sleeve are achieved; meanwhile, through the combination of multiple sets of spherical sleeves and bent shafts in the intermediary part, traditional surface contact is converted into multi-point rolling contact, friction resistance during rotation of the ball is greatly reduced, the problems that in the background technology, the contact area of a ball head and a ball bowl is large, and friction loss is serious are effectively solved, and the dynamic response performance and structural stability of the control arm are improved.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically to a complex structure of a forged aluminum control arm. Background Technology

[0002] The control arm is used to connect the wheel bracket to the front subframe, allowing the wheel a certain amount of room to roll and bounce relative to the vehicle body, while also ensuring a reliable connection with the subframe. It is an important component of the vehicle suspension and typically consists of an upper control arm, a lower control arm, and a longitudinal control arm. Control arms are usually used in pairs, symmetrically combined.

[0003] During vehicle operation, factors such as uneven road surfaces, bumps, or sudden obstacles cause significant vibrations and swaying of the vehicle body, especially increasing the pressure and load on the control arm. In such situations, the connection structure between the control arm ball joint and the ball cup needs to be dynamically adjusted to adapt to the constantly changing force state, resulting in a certain angle of oscillation to buffer impacts and maintain vehicle stability and handling. However, the large contact area between the control arm ball joint and the ball cup leads to high friction. Over time, the gap between the control arm ball joint and the ball cup gradually widens, reducing the precision of the component fit and affecting the stability and efficiency of the braking system, potentially causing problems such as malfunctioning operation or abnormal noise. Therefore, a complex structure for a forged aluminum control arm is proposed. Summary of the Invention

[0004] Therefore, the purpose of this invention is to provide a complex structure for a forged aluminum control arm to solve the technical problems mentioned in the background above.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a complex structure of a forged aluminum control arm, comprising an arm body, both ends of which are provided with positioning holes, ball joint assemblies are provided in the positioning holes by welding, a receiving shaft for connecting other components in its suspension is sleeved inside the ball joint assembly, and a bushing is fixedly connected to the curved outer wall of the arm body; The ball joint assembly includes a ball sleeve fixed in a positioning hole. The ball sleeve has a connecting groove arranged linearly in a latitudinal array. The ball sleeve also has multiple sets of annular grooves arranged in a circular array along the longitudinal direction. The annular grooves and connecting grooves communicate with each other, forming a spherical mesh channel for conveying lubricating oil. A ball fixed to the bottom of a receiving shaft is fitted inside the annular groove. The outer wall of the ball and the spherical sleeve form a unit groove, and an intermediary is arranged within the unit groove. The intermediary includes a spherical sleeve that abuts against the outer wall of the ball and the inner wall of the annular groove. A rotatable elliptical ball is fitted in the connecting groove at a position corresponding to each set of spherical sleeves.

[0006] As a preferred technical solution, the elliptical sphere includes a base shaft that is rotatably connected to the upper and lower inner walls of the connecting groove at both ends. Four sets of blades for moving the lubricating oil are fixed along the curved surface of the outer wall of the elliptical sphere near both ends. The blades are in a misaligned and non-contact state with the spherical sleeve.

[0007] As a preferred technical solution, an oil injection hole is provided inside the ball sleeve at the position where multiple annular grooves converge, and an integrally formed pipe opening is provided on the outer wall of the ball sleeve at the position corresponding to the oil injection hole, and a sealing cap is connected to the end of the pipe opening in the direction of the thread.

[0008] As a preferred technical solution, the intermediate component further includes multiple sets of bent shafts arranged in a ring array. The outer wall of each set of bent shafts is fitted with a number of spherical sleeves corresponding to the connecting grooves along its length direction. The spherical sleeves are provided with connecting seats that can connect the ends of multiple sets of bent shafts.

[0009] As a preferred technical solution, the intermediate component further includes a connecting end located at one end of each set of bent shafts. The connecting end is rotatably connected to the connecting seat. Each set of bent shafts consists of multiple sets of receiving shafts and straight shafts. A straight shaft is fixed between two adjacent sets of receiving shafts. The outer wall of the straight shaft and the two sets of receiving shafts form a rotating groove. The spherical sleeve is fitted onto the outer wall of the straight shaft and is located within the rotating groove.

[0010] As a preferred technical solution, the outer wall of the receiving shaft is provided with a folding telescopic piece at the top of the sphere, and a positioning ring for constraining the sphere is provided on the outer side of the folding telescopic piece. The positioning ring is fixedly connected to the arm body by bolts.

[0011] As a preferred technical solution, the other end of each set of bent shafts is fixed with a hook portion that engages with the edge of the ball sleeve. When the positioning ring is fixed to the outer wall of the arm body, it can squeeze the hook portion. A clearance channel is provided at the position of the positioning ring corresponding to each set of hook portions.

[0012] As a preferred technical solution, the boom body is a stamped part with an H-shaped cross-section. The boom body is provided on both the upper and lower surfaces, and multiple sets of process holes are provided on the upper surface of the boom body at a position offset from the reinforcing plate.

[0013] In summary, the present invention has the following main beneficial effects: This invention achieves uniform distribution and dynamic circulation of lubricating oil between the outer wall of the ball and the outer sleeve of the ball joint by setting a spherical mesh channel composed of annular grooves and connecting grooves in the ball joint assembly, and combining it with a rotatable elliptical ball and blade structure. At the same time, by combining multiple sets of spherical sleeves and bent shafts in the intermediate component, the traditional surface contact is transformed into multi-point rolling contact, which greatly reduces the frictional resistance when the ball rotates. This effectively solves the problem of large contact area and severe frictional loss between the ball head and the ball cup in the prior art, and improves the dynamic response performance and structural stability of the control arm.

[0014] In addition, the oil filling hole and sealing cap facilitate the replenishment of lubricating oil during later maintenance. The cooperation between the folding telescopic plate and the positioning ring can prevent external dust and impurities from entering the ball joint. The H-shaped cross-section arm body combined with the process hole design reduces the overall weight while ensuring structural strength, further optimizing the handling and fuel economy of the car suspension system. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the arm body and ball joint assembly of the present invention; Figure 3 This is a cross-sectional view of the outer casing of the ball of the present invention; Figure 4 This is a schematic diagram of the structure of the intermediary component of the present invention; Figure 5 This is a schematic diagram of the internal structure of the ball outer casing of the present invention; Figure 6 This is a schematic diagram of the ellipsoid structure of the present invention; Figure 7 This is a structural diagram of the receiving shaft and the sphere of the present invention; Figure 8 This is a cross-sectional plan view of the spherical sleeve and the bent shaft of the present invention.

[0016] In the diagram: 100, boom body; 110, reinforcing plate; 120, bushing; 130, process hole; 140, receiving shaft; 141, folding telescopic plate; 150, positioning hole; 160, sphere; 200. Ball joint assembly; 210. Ball sleeve; 211. Oil injection hole; 220. Annular groove; 230. Connecting groove; 240. Intermediate component; 241. Bent shaft; 242. Spherical sleeve; 243. Connecting seat; 244. Straight shaft; 245. Connecting end; 246. Receiving shaft; 250. Pipe opening; 251. Sealing cap; 260. Elliptical ball; 261. Base shaft; 262. Blade; 270. Positioning ring; 271. Clearance channel. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0018] The embodiments of the present invention will now be described.

[0019] A complex structure of a forged aluminum control arm, such as Figures 1 to 8As shown, it includes a boom body 100, with positioning holes 150 reserved at both ends of the boom body 100. A ball joint assembly 200 is provided in the positioning hole 150 by welding. A receiving shaft 140 for connecting other components in its suspension is sleeved inside the ball joint assembly 200. A bushing 120 is fixedly connected to the curved outer wall of the boom body 100. The ball joint assembly 200 includes a ball sleeve 210 fixed in the positioning hole 150. The ball sleeve 210 has a connecting groove 230 arranged in a linear array along the latitudinal direction. The ball sleeve 210 has multiple sets of annular grooves 220 arranged in a ring array along the longitudinal direction. The annular grooves 220 and the connecting grooves 230 communicate with each other and form a spherical mesh channel for conveying lubricating oil. A ball 160 fixed to the bottom of the receiving shaft 140 is sleeved in the annular groove 220. The outer wall of the ball 160 and the ball sleeve 210 form a unit groove. An intermediary 240 is arranged in the unit groove. The intermediary 240 includes a spherical sleeve 242 that abuts against the outer wall of the ball 160 and the inner wall of the annular groove 220. A rotatable elliptical ball 260 is installed in the connecting groove 230 at a position corresponding to each set of spherical sleeves 242.

[0020] The ellipsoid 260 includes a base shaft 261 rotatably connected at both ends to the upper and lower inner walls of the connecting groove 230. Four sets of blades 262 for moving lubricating oil are fixed on the outer wall of the ellipsoid 260 near both ends along its curved surface direction. The blades 262 are in a misaligned and non-contact state with the spherical sleeve 242.

[0021] When the boom body 100 is applied to the suspension of a car, the boom body 100 serves as the core load-bearing component. It achieves a flexible connection with the steering knuckle and the frame through the ball joint assembly 200 in the positioning holes 150 at both ends. The bearing shaft 140 directly bears and transmits the longitudinal traction force, lateral force and steering torque generated by the suspension system during driving, ensuring that the wheel movement trajectory meets the design requirements, while reducing the impact on the vehicle body. The ball 160 connected to the receiving shaft 140 rotates inside the ball sleeve 210, while the spherical sleeve 242 in the intermediate member 240 abuts against the outer wall of the ball 160. By reducing the contact area between the two, the purpose of reducing wear is achieved. At the same time, when the ball 160 rotates in the annular groove 220, its outer wall abuts against the elliptical ball 260 and generates a force of relative motion, causing the elliptical ball 260 to rotate around the base shaft 261. The blades 262 on the outer wall push the surrounding lubricating oil to flow in the spherical mesh channel, so that the lubricating oil is evenly covered on the surface of the ball 160, effectively avoiding the problem of wear caused by insufficient local lubrication. The opening of the annular groove 220 and the connecting groove 230 not only provides ample space for storing more lubricating oil, thereby increasing the oil storage capacity of the lubrication system, but also, through the rotation of the ball 160, promotes the efficient and rapid circulation of lubricating oil through the channel formed by the annular groove 220 and the connecting groove 230, thereby achieving comprehensive lubrication and long-term protection of the ball 160, ensuring its smooth operation and reducing friction loss.

[0022] Please refer to this carefully. Figure 3 An oil injection hole 211 is provided inside the ball sleeve 210 at the position where multiple annular grooves 220 converge. An integrally formed pipe opening 250 is provided on the outer wall of the ball sleeve 210 at the position corresponding to the oil injection hole 211. A sealing cap 251 is connected to the end of the pipe opening 250 by a thread.

[0023] When injecting lubricating oil, the sealing cap 251 can be rotated counterclockwise to completely separate it from the port 250, so as to expose the oil inlet and ensure that the lubricating oil can be injected smoothly, avoiding any leakage or blockage problems.

[0024] Intermediate component 240 also includes multiple sets of bent shafts 241 arranged in a ring array. The outer wall of each set of bent shafts 241 is fitted with a number of spherical sleeves 242 corresponding to the connecting groove 230 along its length direction. The spherical sleeve 210 is provided with a connecting seat 243 that can connect the ends of multiple sets of bent shafts 241. The intermediate component 240 also includes a connecting end 245 located at one end of each set of bent shafts 241. The connecting end 245 can be rotatably connected to the connecting seat 243. Each set of bent shafts 241 is composed of multiple sets of receiving shafts 246 and straight shafts 244. A straight shaft 244 is fixed between two adjacent sets of receiving shafts 246. The outer wall of the straight shaft 244 and the two sets of receiving shafts 246 form a rotating groove. The spherical sleeve 242 is sleeved on the outer wall of the straight shaft 244 and is located in the rotating groove. The other end of each set of bent shafts 241 is fixed with a hook portion that snaps into the edge of the ball sleeve 210. When the positioning ring 270 is fixed to the outer wall of the arm body 100, it can squeeze the hook portion. The positioning ring 270 and the position corresponding to each set of hook portions are provided with a clearance channel 271.

[0025] When the sphere 160 rotates, its outer wall abuts against the spherical sleeve 242 and generates relative motion, driving the spherical sleeve 242 to rotate within the outer wall of the straight shaft 244 and the rotating groove, which can more evenly transfer the lubricating oil in the spherical mesh channel to the contact area between the sphere 160 and the outer sleeve 210. As per the instruction manual Figure 2 , 3 and Figure 5 As shown, the ball sleeve 210 consists of two parts: a ball seat and a ring. The ring is firmly attached to the top of the ball seat by means of a positioning ring 270, thus forming a complete ball sleeve 210, which facilitates the assembly of the ball 160 and the intermediate component 240.

[0026] Please refer to this carefully. Figure 2 and Figure 7 The outer wall of the receiving shaft 140 is provided with a folding telescopic piece 141 at the top of the ball 160. A positioning ring 270 for constraining the ball 160 is provided on the outer side of the folding telescopic piece 141. The positioning ring 270 is fixedly connected to the arm body 100 by bolts.

[0027] The folding telescopic plate 141 is made of rubber, which has excellent elasticity and wear resistance. It can be firmly fixed to the positioning ring 270 by means of snaps or screws. A clearance opening is opened at the position corresponding to the hook part to ensure that the hook part can be accurately and stably snapped into the edge position of the ball sleeve 210. Through this structure, the folding telescopic plate 141 effectively forms a tight seal on the top of the ball sleeve 210, preventing external dust, moisture or other impurities from entering the internal space, avoiding contaminants from affecting the performance of the lubricating oil, thereby maintaining the protective effect of the lubricating oil on the mechanical parts, extending the service life of the equipment and ensuring smooth operation.

[0028] The boom body 100 is a stamped part with an H-shaped cross section. The upper and lower surfaces of the boom body 100 are provided with reinforcing plates 110. Multiple sets of process holes 130 are opened on the upper surface of the boom body 100 at positions offset from the reinforcing plates 110.

[0029] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0030] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A complex structure of a forged aluminum control arm, comprising an arm body (100), characterized in that: Both ends of the arm body (100) are provided with positioning holes (150). A ball joint assembly (200) is provided in the positioning hole (150) by welding. A receiving shaft (140) for connecting other components in its suspension is sleeved inside the ball joint assembly (200). A bushing (120) is fixedly connected to the curved outer wall of the arm body (100). The ball joint assembly (200) includes a ball sleeve (210) fixed inside a positioning hole (150). The ball sleeve (210) has connecting grooves (230) arranged in a linear array along the weft direction. The ball sleeve (210) also has multiple sets of annular grooves (220) arranged in a ring array along the warp direction. The annular grooves (220) and the connecting grooves (230) communicate with each other and form a spherical mesh channel for conveying lubricating oil. The annular grooves (220) are fitted with... A sphere (160) is fixed to the bottom of the receiving shaft (140). The outer wall of the sphere (160) and the spherical sleeve (210) form a unit groove, and an intermediary (240) is arranged in the unit groove. The intermediary (240) includes a spherical sleeve (242) that abuts against the outer wall of the sphere (160) and the inner wall of the annular groove (220). A rotatable elliptical ball (260) is installed in the connecting groove (230) at the position corresponding to each group of spherical sleeves (242).

2. The complex structure of a forged aluminum control arm according to claim 1, characterized in that: The elliptical sphere (260) includes a base shaft (261) with both ends rotatably connected to the upper and lower inner walls of the connecting groove (230). Four sets of blades (262) for moving lubricating oil are fixed on the outer wall of the elliptical sphere (260) and close to both ends along its curved surface direction. The blades (262) are in a misaligned and non-contact state with the spherical sleeve (242).

3. The complex structure of a forged aluminum control arm according to claim 1, characterized in that: An oil injection hole (211) is provided inside the ball sleeve (210) at the position where multiple annular grooves (220) converge. An integrally formed pipe opening (250) is provided on the outer wall of the ball sleeve (210) at the position corresponding to the oil injection hole (211). A sealing cap (251) is connected to the end of the pipe opening (250) in the direction of the thread.

4. The complex structure of a forged aluminum control arm according to claim 1, characterized in that: The intermediate component (240) also includes multiple sets of bent shafts (241) arranged in a ring array. The outer wall of each set of bent shafts (241) is fitted with a number of spherical sleeves (242) corresponding to the connecting groove (230) along its length direction. The spherical sleeve (210) is provided with a connecting seat (243) that can connect the ends of the multiple sets of bent shafts (241).

5. The complex structure of a forged aluminum control arm according to claim 4, characterized in that: The intermediate component (240) also includes a connecting end (245) provided at one end of each set of bent shafts (241). The connecting end (245) can be rotatably connected to the connecting seat (243). Each set of bent shafts (241) is composed of multiple sets of receiving shafts (246) and straight shafts (244). A straight shaft (244) is fixed between two adjacent sets of receiving shafts (246). The outer wall of the straight shaft (244) and the two sets of receiving shafts (246) form a rotating groove. The spherical sleeve (242) is sleeved on the outer wall of the straight shaft (244) and is located in the rotating groove.

6. The complex structure of a forged aluminum control arm according to claim 1, characterized in that: The outer wall of the receiving shaft (140) is provided with a folding telescopic piece (141) at the top of the ball (160). A positioning ring (270) for constraining the ball (160) is provided on the outside of the folding telescopic piece (141). The positioning ring (270) is fixedly connected to the arm body (100) by bolts.

7. The complex structure of a forged aluminum control arm according to claim 5, characterized in that: The other end of each set of bent shafts (241) is fixed with a hook portion that is snapped onto the edge of the ball sleeve (210). The positioning ring (270) is fixed to the outer wall of the arm body (100) and can squeeze the hook portion. The positioning ring (270) has a clearance channel (271) at the position corresponding to each set of hook portions.

8. The complex structure of a forged aluminum control arm according to claim 1, characterized in that: The arm body (100) is a stamped part with an H-shaped cross section. The upper and lower surfaces of the arm body (100) are provided with (111). Multiple sets of process holes (130) are opened on the upper surface of the arm body (100) at a position offset from the reinforcing plate (110).

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