Power assembly suspension cushion

Abstract

The utility model relates to the technical field of automobile connection power assemblies, in particular to a power assembly suspension cushion pad, hereinafter referred to as a cushion pad. The buffering cushion is integrally formed, the middle of the front face of the buffering cushion is hollowed out, the hollowed-out shape is attached to the outer contour of a suspension support supporting arm, an extension face is arranged outwards along the hollowed-out shape, a first limiting face is arranged at the upper end of the front face of the buffering cushion, and the shape of the first limiting face is attached to the outer contour of the connecting position of the upper end of a suspension shell. A second limiting face is arranged at the lower end of the front face of the buffering cushion, the shape of the second limiting face is attached to the outer contour of the connecting position of the lower end of the suspension shell, a third limiting face is arranged on the back face of the buffering cushion, and the shape of the third limiting face is attached to the outer contour of the connecting position of the suspension support. Compared with the prior art, when the power assembly is overlarge in displacement and collides with the suspension shell, the buffering cushion can play a role in buffering and vibration isolation. Assembly is simple, installation is stable, cost is low, and performance is reliable.

Description

Technical Field

[0001] This utility model relates to the field of automotive powertrain connection technology, specifically a powertrain suspension buffer pad, hereinafter referred to as the buffer pad. Background Technology

[0002] A typical powertrain mount includes components such as the mount bracket, shock absorber, mount housing, and damping assembly. The mount bracket connects to the powertrain, and the mount housing connects to the vehicle frame. During driving, the powertrain undergoes multi-degree-of-freedom motion. Under certain conditions of significant displacement, the mount bracket may impact the mount housing. Therefore, a shock absorber is needed between the mount bracket and the mount housing to isolate the impact. The shock absorber is usually made of rubber and plays a crucial role in overall vehicle vibration isolation and noise reduction.

[0003] Currently, the installation method for the buffer pads on automotive powertrain suspensions mainly relies on their own clips for installation. However, the clips are not secure enough and are prone to falling off, increasing the collision and wear between the suspension bracket and the suspension housing. Utility Model Content

[0004] To address the problems mentioned in the background art, the present invention aims to provide a powertrain suspension buffer pad. The buffer pad is integrally formed, with a hollow center on the front side. The hollow shape conforms to the outer contour of the suspension bracket arm. An extension surface extends outward along the hollow shape. A first limiting surface is provided at the upper end of the front side of the buffer pad, conforming to the outer contour of the upper connection point of the suspension housing. A second limiting surface is provided at the lower end of the front side of the buffer pad, conforming to the outer contour of the lower connection point of the suspension housing. A third limiting surface is provided on the back side of the buffer pad, conforming to the outer contour of the connection point of the suspension bracket. The extension surface protrudes outward, with its upper end connected to the lower end of the first limiting surface and its lower end connected to the upper end of the second limiting surface. A portion of the bottom end of the buffer pad protrudes downward.

[0005] The buffer pad has two straight sides.

[0006] The lower end of the first limiting surface contour bends outward to form an "L" shape.

[0007] The second limiting surface has an upper end that bends outward and a lower end that slopes inward.

[0008] The third limiting surface has a vertical upper end, an inward concave middle end, and an outward sloping lower end.

[0009] The outer contour of the buffer pad is chamfered.

[0010] Compared with existing technologies, this invention provides a buffer and vibration isolation function when the powertrain displacement is too large and impacts the suspension housing. It is simple to assemble, securely installed, low in cost, and reliable in performance. Attached Figure Description

[0011] Figure 1 This is a front view of the cushioning pad in this embodiment;

[0012] Figure 2 This is a side view of the buffer pad in this embodiment;

[0013] Figure 3 This is a side view of the engine connecting bracket and buffer pad assembly in this embodiment;

[0014] Figure 4 This is a cross-sectional view of the engine connecting bracket and buffer pad assembly in this embodiment;

[0015] Figure 5 This is a cross-sectional view of the powertrain mounting assembly in this embodiment;

[0016] Figure 6 This is a side view of the powertrain mount assembly in this embodiment;

[0017] See Figures 1 to 6 1. Buffer pad; 2. Suspension bracket; 3. Suspension bracket arm; 4. Suspension housing; 5. Vibration damping component; 6. First limiting surface; 7. Second limiting surface; 8. Third limiting surface. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] like Figures 1 to 6 A powertrain suspension buffer pad is integrally formed. The buffer pad 1 has a hollow center on its front side, the hollow shape of which fits the outer contour of the suspension bracket arm 3. The hollow shape on the front side of the buffer pad 1 has a top edge that curves outward, and the two side edges extend downward along the two ends of the top arc, gradually curving inward and connecting with the bottom edge, which is straight. An extension surface is provided outward along the hollow shape. The upper end of the front side of the buffer pad 1 has a first limiting surface 6, the shape of which fits the outer contour of the upper connection of the suspension housing 4. The lower end of the front side of the buffer pad 1 has a second limiting surface 7, the shape of which fits the outer contour of the lower connection of the suspension housing 4. The back side of the buffer pad 1 has a third limiting surface 8, the shape of which fits the outer contour of the connection of the suspension bracket 2. The extension surface protrudes outward, the upper end of which connects to the lower end of the first limiting surface 6, and the lower end of which connects to the upper end of the second limiting surface 7. A portion of the bottom end of the buffer pad 1 protrudes downward.

[0020] The connection between the buffer pad 1 and the suspension bracket 2 and suspension bracket arm 3 has an interference fit of 0.5mm, which increases the rigidity and stability of the connection, improves the shock resistance and deformation resistance of the assembly, reduces noise and vibration, and extends the service life of the product.

[0021] The left and right sides of the buffer pad 1 are straight, making the edges smoother and reducing friction and resistance during assembly.

[0022] The lower end of the first limiting surface 6 bends outward to form an "L" shape.

[0023] The second limiting surface 7 has an outline that bends outward at the top and tilts inward at the bottom.

[0024] The third limiting surface 8 has a vertical upper end, an inward concave middle end, and an outward sloping lower end.

[0025] The outer contour of the buffer pad 1 is chamfered to reduce collisions and damage to parts during assembly.

[0026] When the powertrain jumps upward, the first limiting surface 6 provides lateral buffering; when the powertrain jumps downward, the upper end of the second limiting surface 7 provides longitudinal buffering; when the powertrain moves laterally, the lower end of the second limiting surface 7 provides lateral buffering. In general, the buffer pad can provide buffering and vibration isolation for the displacement of the powertrain caused by different operating conditions.

Claims

1. A powertrain suspension buffer pad, hereinafter referred to as the buffer pad, characterized in that: The buffer pad (1) is integrally formed. The buffer pad (1) has a hollow center on the front, and the hollow shape fits the outer contour of the suspension bracket arm (3). An extension surface is provided outward along the hollow shape. The upper end of the front of the buffer pad (1) has a first limiting surface (6). The shape of the first limiting surface (6) fits the outer contour of the upper end connection of the suspension housing (4). The lower end of the front of the buffer pad (1) has a second limiting surface (7). The shape of the second limiting surface (7) fits the outer contour of the lower end connection of the suspension housing (4). The back of the buffer pad (1) has a third limiting surface (8). The shape of the third limiting surface (8) fits the outer contour of the connection of the suspension bracket (2). The extension surface protrudes outward. The upper end of the extension surface is connected to the lower end of the first limiting surface (6), and the lower end of the extension surface is connected to the upper end of the second limiting surface (7). A portion of the bottom end of the buffer pad (1) protrudes downward.

2. The powertrain suspension buffer pad according to claim 1, characterized in that: The buffer pad (1) has straight sides on both sides.

3. The powertrain suspension buffer pad according to claim 1, characterized in that: The lower end of the first limiting surface (6) bends outward to form an "L" shape.

4. A powertrain suspension buffer pad according to claim 1, characterized in that: The second limiting surface (7) has an outline that bends outward at the top and tilts inward at the bottom.

5. A powertrain suspension buffer pad according to claim 1, characterized in that: The third limiting surface (8) has a vertical upper end, an inward concave middle end, and an outward sloping lower end.

6. A powertrain suspension buffer pad according to claim 1, characterized in that: The outer contour of the buffer pad (1) is chamfered.

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