A delta arm assembly

Abstract

The utility model provides a kind of triangular arm assembly, belong to ball head technical field.It solves the problem of insufficient protection effect of triangular arm in prior art.The utility model includes triangular arm main body, ball pin assembly component and rubber bushing component, triangular arm main body upper end is formed with installation groove and ball pin assembly component is connected with installation groove, ball pin support one end is inserted into installation groove and is connected, ball seat is installed in ball pin support inside, ball head pin end portion is spherical and ball head pin end portion is inserted into ball seat and is connected, sealing plate is the structure of middle protruding both ends extension, sealing plate both ends are inserted into ball pin support inside fixed connection and sealing plate and ball seat one end closely adhere fixed, ball pin support upper end is formed with connecting groove, dust cover bottom end portion is fixedly connected with connecting groove and dust cover cover is set in ball pin support outside, dust cover outer end portion is provided with connecting hole, ball head pin is threaded through connecting hole and is extended out dust cover.The utility model has the advantages of good protection effect, stable structure and higher structural strength.

Description

Technical Field

[0001] This utility model belongs to the field of ball joint technology and relates to a triangular arm assembly. Background Technology

[0002] The control arm assembly is the core load-bearing component of a car's suspension system. One end connects to the vehicle chassis, and the other end connects to the wheel steering knuckle via a ball joint. It is a key component for transmitting traction and braking force and absorbing road impacts.

[0003] Chinese patent publication number CN205970678U discloses a triangular arm assembly, including a swing arm assembly. The swing arm assembly includes a first curved tube and a second curved tube. The swing arm assembly is provided with a buffer block assembly and a ball head assembly. The buffer block assembly is provided with a first buffer groove and a second buffer groove. The ball head assembly includes an upper cover and a lower cover, forming a cavity between the upper cover and the lower cover. A ball head pin is provided in the cavity. The cavity is also provided with an upper ball cup and a lower ball cup for positioning the ball head pin, respectively. The cavity is also provided with a rubber washer for positioning the lower ball cup. The ball head pin is provided with a positioning groove for fitting the upper ball cup. The rubber washer includes a positioning part that snaps between the upper cover and the lower cover and a support part for supporting the lower ball cup.

[0004] In the triangular arm assembly provided by this patent, the ball joint assembly relies solely on the cavity formed by the splicing of the upper and lower covers for protection, without any protective device. When the car is in motion, dust and mud can easily enter through the gaps between the upper and lower covers and directly contact the mating surfaces of the upper ball cup, lower ball cup, and ball pin. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the prior art by providing a triangular arm assembly.

[0006] The objective of this utility model can be achieved through the following technical solution: A triangular arm assembly includes a triangular arm body, a ball pin assembly, and a rubber bushing assembly. The upper end of the triangular arm body has a mounting groove, and the ball pin assembly is connected to the mounting groove. The ball pin assembly includes a ball seat, a ball head pin, a ball pin bracket, a sealing plate, and a dust cover. One end of the ball pin bracket extends into the mounting groove and is connected. The ball seat is installed inside the ball pin bracket. The end of the ball head pin is spherical and extends into the ball seat and is connected. The sealing plate has a structure with a central protrusion and extending ends. Both ends of the sealing plate extend into the ball pin bracket and are fixedly connected, and the sealing plate is tightly fitted and fixed to one end of the ball seat. A connecting groove is formed at the upper end of the ball pin bracket. The bottom end of the dust cover is fixedly connected to the connecting groove and covers the outside of the ball pin bracket. A connecting hole is opened at the outer end of the dust cover, and the ball head pin passes through the connecting hole and extends out of the dust cover.

[0007] In one of the aforementioned triangular arm assemblies, a sealing bushing is provided on the outer periphery of the connecting hole, and the sealing bushing is connected to the outer periphery of the ball head pin.

[0008] In one of the aforementioned triangular arm assemblies, the rubber bushing assembly includes a bushing body and a pressing fitting. A bushing fitting disc is formed at the tail end of the triangular arm body. The bushing body passes through and is connected to the bushing fitting disc. The pressing fitting is installed in the bushing body by an interference fit.

[0009] In one of the aforementioned triangular arm assemblies, a reinforcing boss is formed in the main body of the triangular arm.

[0010] Compared with the prior art, the triangular arm assembly provided by this utility model has the following beneficial effects: 1. One end of the ball pin bracket extends into the mounting groove of the triangular arm body for connection. The sealing plate adopts a special structure with a central protrusion and two extended ends. Both ends extend into the ball pin bracket for fixation, which can form an axial clamping force on the ball seat, ensuring that the ball seat is accurately positioned and does not shift within the ball pin bracket; 2. The sealing plate is tightly fitted and fixed to one end of the ball seat, which not only seals the assembly gap inside the ball pin bracket, but also prevents external contaminants from contacting the mating surface between the ball head pin and the ball seat, reducing wear and corrosion; 3. The triangular arm body has a built-in reinforcing boss, which directly enhances the rigidity and deformation resistance of the main structure, can withstand complex stresses during driving, and reduces the risk of breakage. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the front structure of this utility model; Figure 2 This is a side view of the structure of this utility model.

[0012] In the diagram: 1. Triangular arm body; 11. Mounting groove; 12. Reinforcing boss; 2. Ball pin assembly; 21. Ball seat; 22. Ball head pin; 23. Ball pin bracket; 231. Connecting groove; 24. Sealing plate; 25. Dust cover; 251. Connecting hole; 252. Sealing bushing; 3. Rubber bushing assembly; 31. Bushing body; 32. Press fitting. Detailed Implementation

[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0014] like Figures 1 to 2 As shown, this embodiment includes a triangular arm body 1, a ball pin assembly 2, and a rubber bushing assembly 3. The components work together to achieve the connection and power transmission of the vehicle's suspension system.

[0015] like Figures 1 to 2As shown, the main body 1 of the triangular arm is an integrally formed structure, with an integrally stamped mounting groove 11 at its upper end. The mounting groove 11 is a stepped groove structure, which is used to provide a precise assembly positioning reference for the ball pin assembly component 2. The middle part and the stress concentration area of ​​the main body 1 of the triangular arm are integrally formed with a reinforcing boss 12. The reinforcing boss 12 significantly improves the structural rigidity and deformation resistance of the main body 1 of the triangular arm by increasing the local wall thickness and optimizing the stress transmission path, without significantly increasing the overall weight, and effectively copes with the complex loads during driving.

[0016] like Figures 1 to 2 As shown, the ball pin assembly 2 is a modular assembly structure, including a ball seat 21, a ball head pin 22, a ball pin bracket 23, a sealing plate 24, and a dust cover 25. One end of the ball pin bracket 23 is a stepped shaft structure, which fits into the mounting groove 11 of the triangular arm body 1 and is fixedly connected by welding or bolt fastening. The connection strength is high and the positioning is accurate. The ball seat 21 is made of wear-resistant polymer material and is tightly embedded in the receiving cavity inside the ball pin bracket 23. The inner wall of the ball seat 21 is an arc-shaped fitting surface, which fits the spherical structure at the end of the ball head pin 22. The end of the ball head pin 22 is a smooth ball shape, which extends into the ball seat 21 and forms a rotational fit, ensuring that the ball head pin 22 can swing flexibly and realize multi-angle power transmission.

[0017] like Figure 2 As shown, the sealing plate 24 is made of metal sheet by stamping and has a special structure with a raised middle and horizontal extensions at both ends. The extensions at both ends are provided with buckles or threaded holes, which are inserted into the mounting holes on the side wall of the ball pin bracket 23 and fixed by fasteners. The raised middle part of the sealing plate 24 is tightly fitted and pressed against one end face of the ball seat 21. On the one hand, it realizes the axial positioning of the ball seat 21 in the ball pin bracket 23 to avoid displacement during use. On the other hand, it seals the assembly gap inside the ball pin bracket 23, forming the first sealing barrier.

[0018] To elaborate further, such as Figure 2 As shown, the upper end of the ball pin bracket 23 has an annular connecting groove 231. The dust cover 25 is made of elastic rubber material, and its bottom end is fastened to the connecting groove 231 by interference fit or clamp fixation. The dust cover 25 has a bell-shaped structure and covers the outside of the ball pin bracket 23 to achieve full protection of the connection parts of the ball seat 21 and the ball head pin 22. The outer end of the dust cover 25 has a connecting hole 251 that matches the ball head pin 22. The inner peripheral wall of the connecting hole 251 is fixed with a sealing bushing 252 by vulcanization process. The sealing bushing 252 is a flexible and wear-resistant structure. Its inner wall is tightly connected with the outer peripheral part of the ball head pin 22 to form a double sealing structure, which effectively prevents the intrusion of external impurities such as dust, mud, and water vapor, reduces the wear of the ball head pin 22 and the ball seat 21, and extends the service life.

[0019] like Figures 1 to 2As shown, the rubber bushing assembly 3 includes a bushing body 31 and a pressing component 32. The tail end of the triangular arm body 1 is integrally formed with an annular bushing fitting plate 13. The bushing fitting plate 13 has a mounting hole in the center. The bushing body 31 is made of rubber material, and its outer peripheral wall is press-fitted with the mounting hole to achieve a fixed connection. The bushing body 31 has a stepped hole inside. The pressing component 32 is a metal bushing structure, which is press-fitted into the stepped hole of the bushing body 31 through an interference fit. The assembly is firm and not easy to loosen. The rubber bushing body 31 can effectively buffer the vibration during driving and improve the ride smoothness of the whole vehicle.

[0020] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0021] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A control arm assembly, comprising a control arm body (1), a ball joint assembly (2), and a rubber bushing assembly (3), characterized in that: The upper end of the main body (1) of the triangular arm has a mounting groove (11) and the ball pin assembly (2) is connected to the mounting groove (11). The ball pin assembly (2) includes a ball seat (21), a ball head pin (22), a ball pin bracket (23), a sealing plate (24), and a dust cover (25). One end of the ball pin bracket (23) extends into the mounting groove (11) and is connected. The ball seat (21) is installed inside the ball pin bracket (23). The end of the ball head pin (22) is spherical and extends into the ball seat (21) and is connected. The sealing plate (24) The structure is a raised middle section with two extended ends. The two ends of the sealing plate (24) extend into the ball pin bracket (23) and are fixedly connected. The sealing plate (24) is tightly fitted and fixed to one end of the ball seat (21). The upper end of the ball pin bracket (23) has a connecting groove (231). The bottom end of the dust cover (25) is fixedly connected to the connecting groove (231) and the dust cover (25) covers the outside of the ball pin bracket (23). The outer end of the dust cover (25) has a connecting hole (251). The ball head pin (22) passes through the connecting hole (251) and extends out of the dust cover (25).

2. The tripod arm assembly according to claim 1, characterized in that: A sealing bushing (252) is provided on the outer periphery of the connecting hole (251), and the sealing bushing (252) is connected to the outer periphery of the ball head pin (22).

3. A tripod arm assembly according to claim 1, characterized in that: The rubber bushing assembly (3) includes a bushing body (31) and a pressing fitting (32). The tail end of the triangular arm body (1) is formed with a bushing fitting plate. The bushing body (31) passes through and is connected to the bushing fitting plate. The pressing fitting (32) is installed in the bushing body (31) by interference fit.

4. A tripod arm assembly according to claim 1, characterized in that: A reinforcing boss (12) is formed in the main body (1) of the triangular arm.

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