A sheet type shock absorbing rubber member

Abstract

This utility model belongs to the technical field of shock absorbers, and provides a sheet-type shock-absorbing rubber component, including a double-ended screw, an upper connecting plate and a lower connecting plate respectively sleeved at the upper and lower ends of the double-ended screw, a sheet-type composite shock-absorbing mechanism sleeved in the middle of the double-ended screw and located between the upper and lower connecting plates, and adjusting nuts disposed at the upper and lower ends of the double-ended screw and located outside the upper and lower connecting plates respectively. This utility model includes a double-ended screw, upper and lower connecting plates, a sheet-type composite shock-absorbing mechanism, and adjusting nuts. The sheet-type composite shock-absorbing mechanism achieves an asymmetrical stiffness structure through a layered design, resulting in a compact structure and excellent shock absorption effect. Simultaneously, by rotating the adjusting nut, the compression of the multi-layer shock-absorbing units can be controlled, thereby changing its overall stiffness and damping characteristics. Users can flexibly adjust it according to different loads and shock absorption requirements, greatly improving the product's applicability and practicality.

Description

Technical Field

[0001] This utility model belongs to the field of shock absorber technology, specifically, it relates to a sheet-type shock-absorbing rubber component. Background Technology

[0002] Rubber shock absorbers are widely used vibration damping devices in machinery, automobiles, and other fields. They are typically composed of a composite of an internal metal fixing component and a rubber body. Energy is dissipated through the friction between the contact surfaces of the metal helical coils, achieving damping and cushioning functions. These products combine the high elastic deformation capacity of rubber materials with the load-bearing advantages of metal structures, resulting in excellent vibration damping and noise reduction, high load-bearing capacity, stable operation, short resonance interval, and excellent mechanical vibration isolation performance. In existing technologies, rubber shock absorbers often employ a fixed structure design. For example, Chinese patent CN202421527862.5 discloses a rubber shock absorber for automobiles, which includes a screw, a nut, and first and second rubber damping pads symmetrically arranged on the screw, secured by the nut. Although this type of structure has a certain shock absorption effect, it still has the following obvious shortcomings: (1) The shock absorption performance is not adjustable, and users cannot flexibly adjust the stiffness or damping of the shock absorber according to the actual working conditions or usage requirements; (2) The overall thickness of the rubber shock absorber is large, which makes it difficult for the internal heat to dissipate quickly during frequent compression, thus accelerating the thermal aging of the rubber material; (3) The excessively thick rubber body is prone to lateral bending or flexural deformation when under pressure, affecting the structural support stability and service life. Utility Model Content

[0003] The purpose of this utility model is to provide a sheet-type shock-absorbing rubber component to solve the technical problems existing in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A sheet-type vibration damping rubber component includes a double-ended screw, an upper connecting plate and a lower connecting plate respectively sleeved at the upper and lower ends of the double-ended screw, a sheet-type composite vibration damping mechanism sleeved in the middle of the double-ended screw and located between the upper and lower connecting plates, and adjusting nuts disposed at the upper and lower ends of the double-ended screw and located outside the upper and lower connecting plates respectively. The sheet-type composite vibration damping mechanism includes a first rubber damping part, a first metal partition part, a third rubber damping part, a second metal partition part, a fourth rubber damping part, a third metal partition part, and a second rubber damping part stacked sequentially from top to bottom. The first rubber damping part and the third rubber damping part have the same hardness, and the second rubber damping part and the fourth rubber damping part have the same hardness. The outer edges of the first metal partition part, the second metal partition part, and the third metal partition part all extend outward to form heat dissipation flanges.

[0005] Preferably, the hardness of the first rubber damping part is greater than that of the second rubber damping part, and the thickness of the third rubber damping part and the fourth rubber damping part are the same.

[0006] Preferably, the end faces of the upper connecting plate and the lower connecting plate on opposite sides are provided with annular retaining rings, the first rubber shock absorber is placed inside the annular retaining ring of the upper connecting plate, and the second rubber shock absorber is placed inside the annular retaining ring of the lower connecting plate.

[0007] Preferably, the first rubber damping part, the first metal partition part, the third rubber damping part, the second metal partition part, the fourth rubber damping part, the third metal partition part, and the second rubber damping part are all provided with through holes at their centers for the double-ended screw to pass through.

[0008] Preferably, a gap is left between the inner wall of the through hole on the first rubber damping part, the third rubber damping part, the fourth rubber damping part, and the second rubber damping part and the outer surface of the double-ended screw.

[0009] Preferably, the upper and lower end faces of the first metal partition, the second metal partition, and the third metal partition are all provided with uneven patterned structures.

[0010] Preferably, the upper connecting plate, the lower connecting plate, the first metal partition, the second metal partition, and the third metal partition are all made of stainless steel.

[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) This utility model includes a double-headed screw, an upper connecting plate and a lower connecting plate, a plate-type composite damping mechanism and an adjusting nut. The plate-type composite damping mechanism achieves an asymmetrical stiffness structure through a stacked design. The structure is compact and has excellent damping effect. At the same time, by rotating the adjusting nut, the compression of the plate-type composite damping mechanism can be controlled, thereby changing its overall stiffness and damping characteristics. Users can make flexible adjustments according to different loads and damping requirements, which greatly improves the applicability and practicality of the product.

[0012] (2) The composite shock absorption mechanism of this utility model adopts a multi-layer thin rubber pad combined with a metal partition, which increases the heat dissipation surface area. At the same time, the heat dissipation flange formed by the outer edge of the metal partition further enhances the heat dissipation effect, which can quickly conduct and dissipate the heat generated during operation, effectively avoid heat accumulation, delay the thermal aging of rubber, and improve product durability.

[0013] (3) In this utility model, the first rubber damping part and the third rubber damping part have the same hardness, the second rubber damping part and the fourth rubber damping part have the same hardness, and the hardness of the first rubber damping part is greater than that of the second rubber damping part. The thickness of the third rubber damping part and the fourth rubber damping part is the same. Thus, the sheet composite damping mechanism is designed as an asymmetrical stiffness structure. The first rubber pad (with higher Shore hardness) is responsible for isolating high-frequency low-amplitude vibrations and provides primary stiffness. The second rubber pad (with lower Shore hardness) is responsible for absorbing low-frequency high-amplitude vibrations and provides secondary stiffness. This realizes the separate optimization and response to high and low frequency vibrations and provides a wider frequency band of excellent damping effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is an exploded view of the present invention.

[0016] Figure 3 This is an exploded view of the plate-type composite shock absorption mechanism of this utility model.

[0017] The corresponding names of the reference numerals in the attached drawings are as follows: 1. Double-ended screw; 2. Upper connecting plate; 3. Lower connecting plate; 4. Adjusting nut; 5. First rubber damping part; 6. First metal partition part; 7. Third rubber damping part; 8. Second metal partition part; 9. Fourth rubber damping part; 10. Third metal partition part; 11. Second rubber damping part; 12. Heat dissipation flange; 13. Annular retaining ring; 14. Through hole. Detailed Implementation

[0018] To enable those skilled in the art to have a clearer understanding of this utility model, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described below are merely illustrative of this utility model and facilitate understanding. The technical solutions provided by this utility model are not limited to those provided in the following embodiments, nor should they limit the scope of protection of this utility model.

[0019] Example like Figures 1-3 As shown, this embodiment provides a sheet-type shock-absorbing rubber component, which mainly consists of a double-headed screw 1, an upper connecting plate 2, a lower connecting plate 3, a sheet-type composite shock-absorbing mechanism, and an adjusting nut 4.

[0020] In this embodiment, the double-ended screw 1 serves as the core connecting component and force-bearing shaft of the entire damping system. The upper connecting plate 2 and the lower connecting plate 3 are respectively fitted onto the upper and lower ends of the double-ended screw 1, serving to connect with external equipment and provide a clamping surface. Two adjusting nuts 4 are screwed onto the upper and lower ends of the double-ended screw 1, located on the outer sides of the upper connecting plate 2 and the lower connecting plate 3, respectively. By tightening the two adjusting nuts 4, the distance between the upper and lower connecting plates can be changed, thereby adjusting the preload pressure on the plate-type composite damping mechanism and controlling the compression amount of the plate-type composite damping mechanism, allowing for flexible adjustment according to different loads and damping requirements.

[0021] The plate-type composite damping mechanism is sleeved in the middle of the double-ended screw 1 and pressed between the upper connecting plate 2 and the lower connecting plate 3. In this embodiment, the plate-type composite damping mechanism is composed of seven components stacked sequentially from top to bottom. Each component is sleeved on the double-ended screw 1 through its central through hole 14, and forms an integral stacked structure under the pressing action of the upper connecting plate 2, the lower connecting plate 3, and the adjusting nut 4. Specifically, it includes: a first rubber damping part 5, a first metal partition part 6, a third rubber damping part 7, a second metal partition part 8, a fourth rubber damping part 9, a third metal partition part 10, and a second rubber damping part 11. It should be noted that those skilled in the art can also change the number of stacked rubber damping parts and metal partition parts according to actual needs.

[0022] In this embodiment, the first rubber damping part 5 and the third rubber damping part 7 are made of rubber material with the same hardness, preferably with a Shore hardness of 70HA; the second rubber damping part 11 and the fourth rubber damping part 9 are made of rubber material with the same hardness, preferably with a Shore hardness of 50HA. Thus, the hardness of the first rubber damping part 5 is greater than that of the second rubber damping part 11, forming an asymmetrical stiffness structure, allowing the damping component to exhibit differentiated buffering characteristics when subjected to impacts from different directions; the third rubber damping part 7 and the fourth rubber damping part 9 have the same thickness, ensuring the balance of compression behavior.

[0023] The outer edges of the first metal partition 6, the second metal partition 8, and the third metal partition 10 all extend outward to form a ring-shaped heat dissipation flange 12. These heat dissipation flanges 12 significantly increase the surface area of ​​the metal parts. With the thermal conductivity of the metal partition itself, the heat generated inside the rubber can be efficiently conducted to the air during vibration, which greatly improves the heat dissipation performance and delays the thermal aging of the rubber.

[0024] All components in the plate-type composite damping mechanism, namely the first rubber damping part 5, the first metal partition part 6, the third rubber damping part 7, the second metal partition part 8, the fourth rubber damping part 9, the third metal partition part 10, and the second rubber damping part 11, are provided with through holes 14 for the double-ended screw 1 to pass through. In particular, the diameter of the through holes 14 on the first rubber damping part 5, the third rubber damping part 7, the fourth rubber damping part 9, and the second rubber damping part 11 is slightly larger than the outer diameter of the double-ended screw 1, so that there is a certain gap between the inner wall of the through hole 14 and the outer surface of the double-ended screw 1. This gap design ensures that during the damping process, only the end face of the rubber component and the metal plate undergo compression deformation, while its inner hole wall will not rub against the screw, thereby protecting the rubber and extending its service life.

[0025] In this embodiment, the upper connecting plate 2, the lower connecting plate 3, the first metal partition 6, the second metal partition 8, and the third metal partition 10 are all made of 304 stainless steel, which combines high strength, corrosion resistance, and good thermal conductivity. Preferably, the upper and lower end faces of the first metal partition 6, the second metal partition 8, and the third metal partition 10 are provided with uneven textured structures by knurling, etching, or pressing. The textured structure can significantly increase the bonding area and mechanical interlocking force between the metal and the rubber. When tightened by the adjusting nut 4, it can effectively prevent relative slippage between the rubber and the metal plate, thereby improving the stability and durability of the overall structure.

[0026] In this embodiment, the first and second rubber damping parts are thicker than the third and fourth rubber damping parts. Therefore, an integrally formed annular retaining ring 13 is provided on the opposite end faces (i.e., the facing inner surfaces) of the upper connecting plate 2 and the lower connecting plate 3. The first rubber damping part 5 is placed inside the annular retaining ring 13 of the upper connecting plate 2, and the second rubber damping part 11 is placed inside the annular retaining ring 13 of the lower connecting plate 3. Based on the above-mentioned annular retaining ring 13, when the damping component is subjected to strong lateral force, it can effectively limit the excessive lateral deformation or displacement of the outermost rubber damping part (the first rubber damping part and the second rubber damping part), thereby greatly improving the support stability and impact resistance reliability of the entire damping component.

[0027] The assembly process of this utility model is as follows: (1) Insert the lower connecting plate 3 into the double-ended screw 1; (2) Sequentially insert the second rubber damping part 11, the third metal partition part 10, the fourth rubber damping part 9, the second metal partition part 8, the third rubber damping part 7, the first metal partition part 6 and the first rubber damping part 5 onto the double-ended screw 1, and ensure that each part is placed flat; (3) Put on the upper connecting plate 2, and finally screw on the upper and lower adjusting nuts 4; (4) Use tools to tighten the adjusting nuts 4 simultaneously until the required pre-tightening pressure is reached, so that each layer of parts fits tightly to form a whole, and the assembly is completed.

[0028] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A sheet-type shock absorbing rubber member, characterized by, The device includes a double-ended screw (1), an upper connecting plate (2) and a lower connecting plate (3) respectively sleeved on the upper and lower ends of the double-ended screw (1), a plate-type composite damping mechanism sleeved in the middle of the double-ended screw (1) and located between the upper connecting plate (2) and the lower connecting plate (3), and adjusting nuts (4) disposed on the upper and lower ends of the double-ended screw (1) and located on the outside of the upper connecting plate (2) and the lower connecting plate (3) respectively; the plate-type composite damping mechanism includes a first rubber damping part (5) and a first rubber damping part (3) stacked sequentially from top to bottom. The metal partition (6), the third rubber damping part (7), the second metal partition (8), the fourth rubber damping part (9), the third metal partition (10), and the second rubber damping part (11) have the same hardness. The first rubber damping part (5) and the third rubber damping part (7) have the same hardness. The second rubber damping part (11) and the fourth rubber damping part (9) have the same hardness. The outer edges of the first metal partition (6), the second metal partition (8), and the third metal partition (10) all extend outward to form heat dissipation flanges (12).

2. The laminated shock absorbing rubber member of claim 1, wherein: The hardness of the first rubber damping part (5) is greater than that of the second rubber damping part (11), and the thickness of the third rubber damping part (7) and the fourth rubber damping part (9) is the same.

3. The laminated shock absorbing rubber member of claim 2, wherein: The upper connecting plate (2) and the lower connecting plate (3) are provided with annular retaining rings (13) on opposite end faces. The first rubber shock absorber (5) is placed inside the annular retaining ring (13) of the upper connecting plate (2), and the second rubber shock absorber (11) is placed inside the annular retaining ring (13) of the lower connecting plate (3).

4. The sheet-type shock-absorbing rubber component according to claim 3, characterized in that: The first rubber damping part (5), the first metal partition part (6), the third rubber damping part (7), the second metal partition part (8), the fourth rubber damping part (9), the third metal partition part (10), and the second rubber damping part (11) are all provided with through holes (14) for the double-headed screw (1) to pass through.

5. The laminated shock absorbing rubber member of claim 4, wherein: A gap is left between the inner wall of the through hole (14) on the first rubber damping part (5), the third rubber damping part (7), the fourth rubber damping part (9) and the second rubber damping part (11) and the outer surface of the double-ended screw (1).

6. The laminated shock absorbing rubber member of claim 5, wherein: The upper and lower end faces of the first metal partition (6), the second metal partition (8) and the third metal partition (10) are all provided with uneven patterned structures.

7. The laminated shock absorbing rubber member according to any one of claims 1 to 6, characterized in that: The upper connecting plate (2), lower connecting plate (3), first metal partition (6), second metal partition (8) and third metal partition (10) are all made of stainless steel.

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