Front lower swing arm front bushing structure

Abstract

The utility model discloses a front lower swing arm front bush structure belongs to the automobile parts product structure technical field. The front bush structure includes the inner tube, two C-shaped insert piece medium pipes and two C-shaped insert piece outer tubes, the inner tube outer wall, two C-shaped insert piece medium pipe whole outer wall, two C-shaped insert piece outer tube inner wall are vulcanized with two rubber main bodies through two injection points respectively, by respectively adjusting the formula of two rubber main bodies and the C-shaped insert piece outer tube arc length size of pressure package in swing arm ring, satisfy the debugging of loading and whole car rigidity and fatigue test, the inner wall of inner tube is equipped with a square groove, indicates the installation direction of two rubber main bodies, and the pressure package direction of accurate positioning bush is adjusted. The utility model reduces the reducing process, and conveniently adjusts the rigidity and fatigue of two rubber main bodies, and has very big technical improvement to the debugging and quick development of present front lower swing arm front bush.

Description

Technical Field

[0001] This utility model relates to a front lower control arm bushing structure, belonging to the technical field of automotive parts product structure. Background Technology

[0002] With technological innovation, the field of automotive component product development has also ushered in technological innovation. In recent years, as the requirements for vehicle handling and comfort have become increasingly stringent, high handling stability is needed during vehicle acceleration to prevent instability, while good comfort is needed during emergency braking to reduce discomfort. The front lower control arm bushing is a bushing closely related to vehicle handling and comfort. Therefore, it is necessary to design a front lower control arm bushing with high stiffness requirements on one side and relatively low stiffness requirements on the other side, while simultaneously balancing handling stability and comfort. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a front lower control arm bushing structure. The front lower control arm bushing structure is an adjustable product formed by vulcanizing two different rubber formulations through injection points: the outer wall of the inner tube, the entire outer wall of the two C-shaped insert tubes, and the inner wall of the two C-shaped insert outer tubes. The rubber formulation and the arc length of the C-shaped insert outer tubes pressed into the control arm collar are adjusted to meet the stiffness and fatigue performance requirements of the front bushing. The square groove structure on the inner wall of the bushing inner tube accurately positions the pressing direction of the bushing.

[0004] This utility model provides a front lower control arm front bushing structure with the following technical solution: This utility model provides a front lower control arm bushing structure, including an inner tube, two C-shaped insert middle tubes, and two C-shaped insert outer tubes. The inner tube is a hollow cylindrical structure. The planar openings of the two C-shaped insert middle tubes are arranged opposite each other to form a hollow cylindrical middle tube, and two gaps are formed along the length of the insert middle tubes at the opposite positions. The planar openings of the two C-shaped insert outer tubes are arranged opposite each other to form a hollow cylindrical outer tube, and two gaps are formed along the length of the insert middle tubes at the opposite positions. A gap along the length of the outer tube; the middle tube is located inside the outer tube, and the inner tube is located inside the middle tube. The two sets of gaps are merged into one set of gaps, forming a symmetrical bushing structure with the center line of the gap as the center line; with the center line as the boundary, one side of half of the outer wall of the inner tube, the entire outer wall of a C-shaped insert middle tube, and the inner wall of a C-shaped insert outer tube are vulcanized with rubber body A through the rubber body A injection point, and the other side of half of the outer wall of the inner tube, the entire outer wall of another C-shaped insert middle tube, and the inner wall of another C-shaped insert outer tube are vulcanized with rubber body B through the rubber body B injection point.

[0005] Preferably, the inner wall of the inner tube is further provided with a square groove, the central axis of which is perpendicular to the center line, indicating the installation direction of the rubber body A and the rubber body B, and accurately positioning the pressing direction of the bushing.

[0006] Preferably, the arc length of the C-shaped insert outer tube is adjusted according to the required stiffness.

[0007] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model adjusts the formulas of the two rubber bodies according to the different stiffness requirements of customers.

[0008] 2. This utility model adjusts the formulas of the two rubber bodies according to the different fatigue requirements of customers.

[0009] 3. The front lower control arm bushing provided by this utility model directly achieves the effect of bushing diameter reduction during the control arm collar pressing process, and different stiffness performances can be achieved by adjusting the arc length of the outer tube of the C-shaped insert.

[0010] 4. This utility model uses the square groove on the inner wall of the inner tube to accurately position the pressing direction of the bushing, thereby ensuring that one side of the rubber body of the bushing focuses on operation stability, while the other side focuses on comfort. Attached Figure Description

[0011] Figure 1 A perspective view of a front bushing structure for a front lower control arm provided by this utility model; Figure 2 A top view of a front lower control arm bushing structure provided by this utility model; Figure 3 A cross-sectional view of the front bushing structure of the front lower control arm provided by this utility model; Figure 4 A perspective view of a front lower control arm bushing pressed into a control arm collar, as provided by this utility model.

[0012] Reference numerals in the attached drawings: 1. Inner tube; 1-1. Square groove; 2. C-shaped insert tube; 3. Rubber body A; 3-1. Injection point of rubber body A; 4. Rubber body B; 4-1. Injection point of rubber body B; 5. C-shaped insert outer tube; 6. Swing arm collar. Detailed Implementation

[0013] To make this utility model clearer and easier to understand, a detailed description is provided below in conjunction with the accompanying drawings.

[0014] This utility model provides a front lower control arm bushing structure, mainly addressing bushings with high requirements for stiffness in the radial X+ / X- directions, different stiffness performance requirements, or bushings with fatigue performance requirements on one side. For example... Figure 1-3As shown, this utility model provides a front lower control arm bushing structure including an inner tube 1, two C-shaped insert middle tubes 2, and two C-shaped insert outer tubes 5; the inner tube 1 is a hollow cylindrical structure; the planar openings of the two C-shaped insert middle tubes 2 are arranged facing each other to form a hollow cylindrical middle tube, and two gaps are formed along the length direction of the insert middle tubes at the opposite positions of the two C-shaped insert middle tubes 2; the planar openings of the two C-shaped insert outer tubes 5 are arranged facing each other to form a hollow cylindrical outer tube, and two gaps are formed along the length direction of the insert outer tubes at the opposite positions of the two C-shaped insert outer tubes 5; the middle tube is located inside the outer tube, and the inner tube is located inside the middle tube, and the two sets of gaps are merged into one set of gaps, forming a symmetrical bushing structure with the center line of the gap as the center line; with the center line as the boundary, half of the outer wall of the inner tube 1, the entire outer wall of one C-shaped insert middle tube 2, and the inner wall of one C-shaped insert outer tube 5 are vulcanized with rubber body A through the rubber body A injection point 3-1. 3. The outer wall of the other half of the inner tube 1, the entire outer wall of the other C-shaped insert tube 2, and the inner wall of the other C-shaped insert outer tube 5 are vulcanized with rubber body B through the rubber body B injection point 4-1; the inner wall of the inner tube 1 is also provided with a square groove 1-1, the central axis of the square groove 1-1 is perpendicular to the center line to indicate the installation direction of rubber body A and rubber body B, and accurately position the pressing direction of the bushing; the arc length of the C-shaped insert outer tube 5 is adjusted according to the required rigidity.

[0015] like Figure 4 As shown, the two C-shaped inserts are forced together by the outer tubes to form a collar size, and then pressed into the collar 6. The longer the arc length of the C-shaped insert outer tube 5, the more likely the C-shaped insert will be over-exposed after closing, resulting in insufficient rubber compression and lower stiffness. During acceleration, the rubber body A3 moves in the X+ direction, and is compressed by the inner tube. The rubber body A3 has higher hardness and stiffness, which is beneficial for rapid acceleration and good handling stability. During emergency braking, the rubber body B4 moves in the X- direction, and is compressed by the inner tube. The rubber body B4 has lower hardness and stiffness, which is better for comfort. Different stiffness and different fatigue performance of rubber bodies A3 and B4 can be achieved by adjusting their respective formulas.

[0016] This invention adjusts the formulations of the two rubber bodies according to the different stiffness requirements of customers.

[0017] This invention adjusts the formulations of the two rubber bodies according to the different fatigue requirements of customers.

[0018] The front lower control arm bushing provided by this utility model directly achieves the effect of bushing diameter reduction during the control arm collar pressing process, and different stiffness performances can be achieved by adjusting the arc length of the outer tube of the C-shaped insert.

[0019] This invention uses a square groove on the inner wall of the inner tube to precisely position the pressing direction of the bushing, thereby ensuring that one side of the bushing's rubber body emphasizes handling stability, while the other side emphasizes comfort.

[0020] In summary, this invention satisfies the stiffness and fatigue requirements in the radial X+ / X- directions by adjusting the formulations of the two rubber bodies separately. Since the bushing's press-fit structure eliminates the need for diameter reduction, and a square groove indicates the installation direction during installation, it solves the problem that traditional production processes cannot meet the need for stiffness adjustment in the same positive and negative directions. This invention reduces the diameter reduction process and facilitates convenient adjustment of the stiffness and fatigue of the two rubber bodies, significantly improving the technical advancement of the existing front lower control arm bushing's debugging and rapid development.

[0021] The above description is not intended to limit the present utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from the present utility model, and these improvements and additions should also be considered within the scope of protection of the present utility model. Any equivalent changes, modifications, and evolutions made based on the essential technology of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A front lower control arm bushing structure, characterized in that, It includes an inner tube, two C-shaped insert tubes, and two C-shaped insert outer tubes. The inner tube is a hollow cylindrical structure. The two C-shaped insert tubes have their planar openings facing each other to form a hollow cylindrical tube, and two slits are formed along the length of the insert tubes at their opposite locations. The two C-shaped insert outer tubes also have their planar openings facing each other to form a hollow cylindrical tube, and two slits are formed along the length of the insert outer tubes at their opposite locations. The middle tube is located inside the outer tube, and the inner tube is located inside the middle tube. The two sets of gaps are merged into one set of gaps, forming a symmetrical structure bushing with the center line of the gap as the center line. With the center line as the boundary, one side has half of the outer wall of the inner tube, the entire outer wall of a C-shaped insert middle tube, and the inner wall of a C-shaped insert outer tube vulcanized with rubber body A through the rubber body A injection point. The other side has half of the outer wall of the inner tube, the entire outer wall of another C-shaped insert middle tube, and the inner wall of another C-shaped insert outer tube vulcanized with rubber body B through the rubber body B injection point.

2. The front lower control arm bushing structure as described in claim 1, characterized in that, The inner wall of the inner tube is also provided with a square groove, the central axis of which is perpendicular to the center line, indicating the installation direction of the rubber body A and the rubber body B, and accurately positioning the pressing direction of the bushing.

3. The front lower control arm bushing structure as described in claim 1, characterized in that, The arc length of the C-shaped insert outer tube is adjusted according to the required stiffness.

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