A low noise damper assembly

Abstract

This utility model provides a low-noise vibration damper assembly, comprising a transmission disc connected to a wheel hub via a central hole and secured with rivets. Cover plate A and cover plate B are respectively provided on both sides of the transmission disc, with a fixing seat between them and a limiting block on the outer edge of the fixing seat. The transmission disc has a window containing a vibration damping spring, with fixing blocks at both ends of the spring. Multiple bosses are evenly distributed on the outer circumference of the transmission disc, with a rotating block between adjacent bosses. The fixing blocks, rotating blocks, and limiting blocks are all made of elastic material. This invention solves the technical problem of noise and reduced comfort caused by rigid contact between the transmission disc and elastic or limiting elements in existing vibration dampers. This utility model can be widely applied to vehicle transmission systems.

Description

Technical Field

[0001] This utility model relates to a vibration damper assembly, and more particularly to a low-noise vibration damper assembly. Background Technology

[0002] With the improvement of living standards and the increase in production capacity, people's requirements for the comfort of automobiles and other vehicles are constantly increasing, and the NVH characteristics of the whole vehicle have become an important indicator for evaluating the performance of the whole vehicle. As a power transmission mechanism, the shock absorber can effectively transmit engine power and change the natural vibration mode. However, the traditional shock absorber drive disc and elastic element or limiting element are in rigid contact, which is prone to generating noise and reducing the overall vehicle comfort. Summary of the Invention

[0003] This invention addresses the technical problem of noise generated by rigid contact between the transmission disc and elastic element or limiting component in existing shock absorbers, which affects comfort. It provides a low-noise shock absorber assembly with a simple structure, safety and reliability, and the ability to effectively reduce shock absorber noise.

[0004] Therefore, the technical solution of this utility model is a low-noise vibration damper assembly, which includes a transmission disc. The transmission disc is connected to a wheel hub through a central hole and fixed with rivets. Cover plate A and cover plate B are respectively provided on both sides of the transmission disc. A fixing seat is provided between cover plate A and cover plate B. A limiting block is provided on the outer edge of the fixing seat. A window is provided on the transmission disc. A vibration damping spring is provided inside the window. Fixed blocks are provided at both ends of the vibration damping spring. Multiple bosses are evenly distributed on the outer circle of the transmission disc. A rotating block is provided between two adjacent bosses. The fixing block, rotating block and limiting block are all made of elastic material.

[0005] Preferably, the damping spring adopts the form of a large spring surrounding a small spring. The fixing block is provided with a groove and a cylindrical protrusion. The small spring is sleeved on the cylindrical protrusion of the fixing blocks at both ends, and the large spring is installed in the groove of the fixing blocks at both ends.

[0006] Preferably, the windows are four small and two large, evenly distributed in the circumferential direction of the transmission disk, with the two large windows arranged symmetrically; both cover plate A and cover plate B are stamped parts, with six cavities matching the positions of the windows on the transmission disk, the cavities being four large and two small, with the two small cavities corresponding to the two large windows.

[0007] Preferably, the outer edge shape of the fixing block matches the transmission disk window and is fitted inside the transmission disk window.

[0008] The beneficial effects of this utility model are:

[0009] (1) By adding a fixing block of elastic material between the transmission disc and the damping spring, the collision noise between the two parts is eliminated to the maximum extent; by fixing the positions of the large spring and the small spring by the groove and cylindrical protrusion on the fixing block, the wear of the spring and other parts is reduced, and the friction noise between the workpieces is eliminated.

[0010] (2) By setting a rotating block of elastic material between the bosses of the transmission disc, the rotating block contacts the limiting block of elastic material, and the torque transmission capacity of the damper reaches the limit value, which can effectively reduce the collision noise between the two parts.

[0011] (3) The four small and two large windows on the transmission plate are assembled with the four large and two small cavities on cover plate A and cover plate B to form a two-level stiffness damping, which can better avoid resonance of the transmission system and mitigate impact. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0013] Figure 2 yes Figure 1 Schematic diagram of the AA-direction cross-section structure;

[0014] Figure 3 This is a schematic diagram of the transmission disc structure according to an embodiment of the present utility model;

[0015] Figure 4 This is a front view structural diagram of the fixing block according to an embodiment of the present utility model;

[0016] Figure 5 This is a side view of the fixing block structure according to an embodiment of the present invention;

[0017] Figure 6 This is a schematic diagram of the main structure of the limiting block according to an embodiment of the present utility model;

[0018] Figure 7 yes Figure 6 Schematic diagram of the B-direction structure;

[0019] Figure 8 This is a schematic diagram of the main structure of the fixing seat according to an embodiment of the present utility model;

[0020] Figure 9 This is a side view of the fixed base structure according to an embodiment of the present utility model;

[0021] Figure 10 This is a schematic diagram of the main structure of the rotating block according to an embodiment of the present invention;

[0022] Figure 11 This is a top view of the rotating block structure according to an embodiment of the present invention;

[0023] Figure 12 yes Figure 10 Schematic diagram of the C-axis structure.

[0024] Explanation of symbols in the diagram:

[0025] 1. Transmission disc; 1.1. Boss; 1.2. Window; 2. Cover plate A; 3. Cover plate B; 4. Hub; 5. Fixing block; 6. Fixing seat; 7. Fixing block; 7.1. Groove; 7.2. Cylindrical protrusion; 8. Limiting block; 9. Small spring; 10. Large spring; 11. Rotating block. Detailed Implementation

[0026] The present invention will be further described below with reference to the embodiments.

[0027] like Figure 1-5 As shown, a low-noise vibration damper assembly includes a transmission disc 1 with a central hole that matches the stop of a wheel hub 4. The transmission disc 1 and the wheel hub 4 are fixed together by rivets on their end faces. Cover plates A 2 and B 3 are respectively provided on both sides of the transmission disc 1. A fixing seat 6 is provided between cover plates A 2 and B 3 to fix their relative positions. A limiting block 8 is provided on the outer edge of the fixing seat 6. The outer edge of the fixing seat 6 is polygonal, and the limiting block 8 has an inner hole that matches the polygonal shape. The limiting block 8 is connected to the fixing seat 6 through the inner hole and prevents relative rotation. A window 1.2 is provided on the transmission disc 1, and a vibration damping spring is provided inside the window 1.2. Fixing blocks 7 are provided at both ends of the vibration damping spring. The outer edge of the fixing blocks 7 matches the shape of the window of the transmission disc 1 and is fitted into the window of the transmission disc 1. Multiple bosses 1.1 are evenly distributed on the outer circumference of the transmission disk 1. A rotating block 11 is provided between every two adjacent bosses 1.1. The fixed block 7, the rotating block 11, and the limiting block 8 are all made of elastic material, such as plastic. In this embodiment, the transmission disk 1 has six bosses 1.1, and a rotating block 11 is provided between every two adjacent bosses 1.1, for a total of six rotating blocks 11. A fixed seat 6 is also provided between every two adjacent bosses 1.1, and each fixed seat 6 corresponds to a limiting block 8, so there are a total of six fixed seats 6 and six limiting blocks 8.

[0028] The vibration damping spring adopts the form of a large spring 10 set with a small spring 9. The fixing block 7 is provided with a groove 7.1 and a cylindrical protrusion 7.2. The small spring 9 is fitted on the cylindrical protrusion 7.2 of the fixing blocks 7 at both ends. The large spring 10 is installed in the groove 7.1 of the fixing blocks 7 at both ends, thereby fixing the large spring 10 and the small spring 9 respectively, reducing the wear of the spring and other parts, and eliminating friction noise between the workpieces.

[0029] The windows 1.2 on the transmission disc 1 consist of four small and two large windows, evenly distributed around the circumference of the transmission disc 1. The two large windows are arranged symmetrically. The cover plate A 2 and cover plate B 3 are both stamped parts, with six cavities that match the positions of the windows 1.2 on the transmission disc 1. The cavities consist of four large and two small cavities. The two small cavities are assembled with the two large windows, matching their dimensions, while the four large cavities are assembled with the four small windows. There is sufficient gap between the small windows and the large cavities to form a secondary stiffness damping, which can better avoid resonance in the transmission system and mitigate impact.

[0030] By setting a fixing block of elastic material between the transmission disc 1 and the damping spring, the collision noise between the two parts can be effectively reduced. The large spring 10 and the small spring 9 are fixed in position by the groove 7.1 and the cylindrical protrusion 7.2 on the fixing block 7, respectively. By setting a rotating block 11 of elastic material between the bosses of the transmission disc, the rotating block 11 contacts the limiting block 8 of elastic material, and the torsional transmission capacity of the damper reaches its limit value, which can effectively reduce the collision noise between the two parts. The technical solution of this application has a simple structure, is easy to assemble, and can effectively reduce the noise generated by rigid collisions and improve the overall comfort.

[0031] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A low-noise vibration damper assembly, characterized in that, The transmission disc is provided, which is connected to the hub through a central hole and fixed with rivets. Cover plate A and cover plate B are respectively provided on both sides of the transmission disc, and a fixed seat is provided between cover plate A and cover plate B. A limiting block is provided on the outer edge of the fixed seat. A window is provided on the transmission disc, and a vibration damping spring is provided inside the window. Fixed blocks are provided at both ends of the vibration damping spring. Multiple bosses are evenly distributed on the outer circle of the transmission disc, and a rotating block is provided between two adjacent bosses. The fixed block, rotating block and limiting block are all made of elastic material.

2. The low-noise vibration damper assembly according to claim 1, characterized in that, The vibration damping spring adopts the form of a large spring encasing a small spring. The fixing block is provided with a groove and a cylindrical protrusion. The small spring is sleeved on the cylindrical protrusion of the fixing blocks at both ends, and the large spring is installed in the groove of the fixing blocks at both ends.

3. The low-noise vibration damper assembly according to claim 1, characterized in that, The windows are arranged in a circumferential direction of the transmission disk, with four small and two large windows evenly distributed, and the two large windows are arranged symmetrically. The cover plate A and cover plate B are both stamped parts, with six cavities that match the positions of the windows on the transmission disk. The cavities are four large and two small, with the two small cavities corresponding to the two large windows.

4. The low-noise vibration damper assembly according to claim 1, characterized in that, The outer edge of the fixing block matches the shape of the transmission disk window and is fitted into the transmission disk window.

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