Damping base for low noise biological peptide centrifuge

Abstract

The utility model relates to centrifuge auxiliary equipment technical field, concretely relates to the shock absorbing base of low noise biological peptide centrifuge, including the bearing plate, the bottom of bearing plate is provided with the bearing base, the side of bearing base is wrapped with the sound insulation fence, the bottom surface of bearing base is provided with the vibration isolation pad, a plurality of buffer components are arranged between bearing base and bearing plate, buffer component includes the shock absorbing spring set up between bearing base and bearing plate, the central position of shock absorbing spring is provided with the damper, the bottom end fixed mounting of damper is on the upper surface of bearing base, the damper is provided with the damping liquid storage chamber, the guiding rod of sliding connection is arranged in the damping liquid storage chamber, the top of guiding rod sets up in the bottom of bearing plate, and the piston cover is set up on guiding rod, and the piston cover is located in the damping liquid storage chamber and is connected between the damping liquid storage chamber and sliding. The utility model has good shock attenuation and sound absorption effect, and is favorable for reducing noise pollution.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge auxiliary equipment technology, specifically to a shock-absorbing base for a low-noise biopeptide centrifuge. Background Technology

[0002] In the process of separating biopeptides by centrifugation, the centrifuge needs to rotate at high speed (8000-15000 rpm) to achieve material separation. There are many types of centrifuges on the market, and most of them are supported by corresponding bases at the bottom.

[0003] Traditional centrifuges have rigid bases, mainly made of steel frame structures and supported on the ground. However, due to the imbalance of the centrifuge rotor and the high-speed rotational inertia, severe vibrations are easily generated. These vibrations are directly transmitted to the ground through the traditional rigid base, causing resonance between the ground and surrounding equipment. The operating noise can reach 75-85dB, affecting the physical and mental health of the operators.

[0004] Some traditional rigid bases use a single rubber pad for shock absorption, such as installing a corresponding rubber pad at the bottom of the support leg. This rubber pad is prone to wear from friction with the ground and is easily aged and hardened by long-term high-frequency vibration and compression, affecting its shock absorption and cushioning effect. In view of this, we propose a shock-absorbing base for a low-noise biopeptide centrifuge. Utility Model Content

[0005] The purpose of this invention is to provide a shock-absorbing base for a low-noise biopeptide centrifuge, in order to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: The vibration damping base of the low-noise biopeptide centrifuge includes a support plate, a support base located below the support plate, a sound insulation panel covering the sides of the support base, a vibration isolation pad on the bottom surface of the support base, and multiple buffer components between the support base and the support plate. Each buffer component includes a damping spring disposed between the support base and the support plate, a damper located at the center of the damping spring, and the bottom end of the damper fixedly mounted on the upper surface of the support base. A damping fluid storage chamber is provided within the damper, and a guide rod is slidably connected within the damping fluid storage chamber. The top end of the guide rod is located at the bottom of the support plate, and a piston sleeve is mounted on the guide rod. The piston sleeve is located within the damping fluid storage chamber and slidably connected to it.

[0007] Preferably, a cross-shaped reinforcing rib is fixedly installed on the bottom surface of the bearing plate. The cross-shaped reinforcing rib is in the form of a grid, and resonance suppression ribs are fixedly installed at the intersections of the transverse and longitudinal directions of the cross-shaped reinforcing rib. The cross-shaped reinforcing ribs in this design can enhance the rigidity of the load-bearing plate and prevent deformation under stress; the resonance suppression ribs can suppress the resonance of the load-bearing plate and reduce vibration radiation noise.

[0008] Preferably, the soundproof enclosure is composed of inner and outer double-layer galvanized sheets, and sound-absorbing cotton is provided between the inner and outer galvanized sheets; Preferably, a corrugated sound-absorbing plate is provided on the inner surface of the galvanized sheet located in the inner layer, and the thickness of the corrugated sound-absorbing plate is between 10mm and 15mm. The above two settings can absorb sound and reduce the transmission of noise.

[0009] Preferably, spring seats are fixedly installed at both ends of the shock-absorbing spring, with the lower spring seat fixedly installed on the bearing base and the upper spring seat fixedly installed on the bottom surface of the bearing plate; This feature facilitates the installation and removal of shock-absorbing springs.

[0010] Preferably, the top end of the guide rod is fixedly mounted on the bottom surface of the upper spring seat, and the size of the piston sleeve is adapted to the size of the damping fluid storage chamber.

[0011] Preferably, a flexible buffer pad is provided between the upper spring seat and the bearing plate, and the flexible buffer pad is provided with a plurality of honeycomb-shaped buffer holes; This setting absorbs residual vibrations, further reducing vibration transmission.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model achieves multi-stage buffering and attenuation of vibration through multiple buffer components between the bearing plate and the bearing base. The vibration generated by the centrifuge is initially absorbed by the damping spring. The relative sliding between the damping fluid in the damper and the piston sleeve forms viscous resistance, which further weakens the vibration energy and avoids rigid transmission, thereby reducing the vibration intensity and reducing resonance excitation.

[0013] 2. This utility model achieves noise blocking and absorption by using a soundproof enclosure wrapped around the side of the support base. The double-layer galvanized sheet blocks the noise transmission path, and the sound-absorbing cotton and wave-shaped sound-absorbing board absorb vibration radiation noise, thereby controlling the operating noise to a lower level and protecting the physical and mental health of the operators.

[0014] 3. This utility model achieves a dual improvement in structural stability and residual vibration absorption through the cross-shaped reinforcing ribs and resonance suppression ribs on the bottom surface of the bearing plate, the flexible buffer pad between the spring seat and the bearing plate, and the vibration isolation pad on the bottom surface of the bearing base. The cross-shaped reinforcing ribs enhance the rigidity of the bearing plate, the resonance suppression ribs suppress structural resonance, and the flexible buffer pads and vibration isolation pads absorb residual vibration, while avoiding the drawbacks of aging and hardening of a single rubber pad. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the structure of the flexible buffer pad of this utility model; Figure 4 This is a cross-sectional view of the soundproof enclosure panel of this utility model; The meanings of the labels in the diagram are as follows: 1. Load-bearing plate; 10. Cross-shaped reinforcing ribs; 11. Resonance suppression ribs; 2. Support base; 20. Vibration isolation pad; 21. Sound insulation panel; 211. Galvanized sheet; 212. Sound-absorbing cotton; 213. Corrugated sound-absorbing panel; 3. Buffer assembly; 30. Shock-absorbing spring; 31. Spring seat; 32. Damper; 33. Damping fluid storage chamber; 34. Guide rod; 341. Piston sleeve; 35. Flexible buffer pad; 351. Honeycomb buffer hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-4This utility model provides a technical solution: a vibration-damping base for a low-noise biopeptide centrifuge, including a support plate 1, with the centrifuge mounted on top of the support plate 1, and a support base 2 below the support plate 1 for stable support. The support base 2 is wrapped with a sound-insulating panel 21 on its side, and a vibration isolation pad 20 is provided on the bottom surface of the support base 2. Multiple buffer components 3 are provided between the support base 2 and the support plate 1. Each buffer component 3 includes a vibration-damping spring 30 disposed between the support base 2 and the support plate 1. A damper 32 is located at the center of the vibration-damping spring 30, and the bottom end of the damper 32 is fixedly mounted on the upper surface of the support base 2. A damping device is provided inside the damper 32. The damping fluid storage chamber 33 stores silicone oil damping fluid, which can quickly dissipate high-frequency vibration energy. A guide rod 34 is slidably connected inside the damping fluid storage chamber 33. The top end of the guide rod 34 is set at the bottom of the support plate 1. A piston sleeve 341 is set on the guide rod 34. The piston sleeve 341 is located inside the damping fluid storage chamber 33 and is slidably connected to it. The vibration generated by the centrifuge is initially buffered by the damping spring 30. The relative sliding between the damping fluid and the piston sleeve 341 forms viscous resistance to further dampen the vibration. The vibration isolation pad 20 blocks the transmission of vibration at the bottom, solving the problem of severe vibration transmission in traditional bases, achieving efficient vibration reduction and reducing resonance.

[0018] In this embodiment, a cross-shaped reinforcing rib 10 is fixedly installed on the bottom surface of the support plate 1. The cross-shaped reinforcing rib 10 is in the form of a grid. Resonance suppression ribs 11 are fixedly installed at the intersections of the horizontal and vertical directions of the cross-shaped reinforcing rib 10. This makes the cross-shaped reinforcing rib 10 enhance the structural rigidity of the support plate 1 and prevent the support plate 1 from deforming under stress when the centrifuge rotates at high speed. The resonance suppression ribs 11 effectively suppress the resonance of the support plate 1, reduce the noise of vibration radiation, and improve the stability and noise reduction effect of the support plate 1.

[0019] Specifically, the soundproof enclosure 21 is composed of inner and outer double-layer galvanized sheets 211, with sound-absorbing cotton 212 placed between the inner and outer galvanized sheets 211. This allows the double-layer galvanized sheets 211 to form a closed soundproof barrier, blocking the path of noise transmission outward. The sound-absorbing cotton 212 absorbs the noise generated by internal vibration, reducing noise leakage and creating a quieter working environment.

[0020] Furthermore, a corrugated sound-absorbing panel 213 is provided on the inner surface of the inner galvanized sheet 211. The thickness of the corrugated sound-absorbing panel 213 is between 10mm and 15mm, which increases the sound absorption area of ​​the corrugated structure, further absorbs the residual noise inside the sound insulation panel 21, improves the overall sound insulation effect, and reduces the noise intensity of the working environment. The corrugated sound-absorbing panel 213 can be installed on the side of the bearing base 2 by adhesive or by using fastening screws.

[0021] like Figure 1 and Figure 2 As shown, spring seats 31 are fixedly installed at both ends of the shock-absorbing spring 30. The lower spring seat 31 is detachably fixed to the bearing base 2 by multiple fastening screws, and the upper spring seat 31 is detachably fixed to the bottom surface of the bearing plate 1 by multiple fastening screws. This provides a stable mounting support point for the shock-absorbing spring 30. At the same time, the detachable installation method facilitates the later inspection and replacement of the shock-absorbing spring 30, reducing maintenance costs.

[0022] like Figure 1 and Figure 2 As shown, the top end of the guide rod 34 is fixedly installed on the bottom surface of the upper spring seat 31. The size of the piston sleeve 341 is adapted to the size of the damping fluid storage chamber 33, so that the guide rod 34 provides guidance for the extension and retraction of the damping spring 30, avoiding lateral displacement or twisting of the damping spring 30. The tight fit between the piston sleeve 341 and the damping fluid storage chamber 33 ensures stable damping effect and improves the overall damping reliability of the buffer assembly 3. Furthermore, since the range of vibration of the bearing plate 1 is less than the depth of the guide rod 34 inserted into the damping fluid storage chamber 33, the guide rod 34 will not fall out of the damping fluid storage chamber 33 after vibration occurs on the bearing plate 1.

[0023] In addition, a flexible buffer pad 35 is provided between the upper spring seat 31 and the bearing plate 1. The flexible buffer pad 35 can be made of polyurethane foam material. The flexible buffer pad 35 is provided with multiple honeycomb buffer holes 351, so that the flexible buffer pad 35 of polyurethane foam material absorbs the residual vibration that is not completely eliminated by the shock-absorbing spring 30 and the damper 32. The honeycomb buffer holes 351 further enhance the buffering performance, weaken the intensity of vibration transmitted to the bearing plate 1, realize multi-level shock absorption, and improve the overall shock absorption effect.

[0024] It is worth noting that the vibration isolation pad 20 can be made of nitrile rubber with a thickness of 15-22mm and a Shore hardness of 55HA. The bottom surface has anti-slip textures, which enhances the stability of the bearing base 2 and further blocks vibration transmission to the ground. The resonance suppression rib 11 is a cylindrical structure with a diameter of 15-20mm and a height of 20-30mm. It is made of high-density rubber and can suppress resonance of the bearing plate, reducing vibration radiation noise. The resonance suppression of the resonance suppression rib 11 is mainly reflected in the following three aspects: First, through the "flexible added mass" effect of the high-density rubber, it can suppress resonance of the bearing plate 1 without compromising its rigidity. Under the premise of adjusting its natural frequency to 80-90Hz or 180-200Hz, it forms a "frequency mismatch" with the main vibration frequency of the centrifuge, 50-200Hz, fundamentally avoiding the conditions for resonance triggering. Secondly, the resonance suppression rib 11 acts as an "energy interceptor". When the vibration wave is transmitted to the intersection node, the micro-deformation of the rubber material will absorb some energy. At the same time, its high internal loss characteristics will convert the remaining energy into heat energy, so that the vibration wave is transmitted to other areas of the plate. Finally, when the vibration wave hits the resonance suppression rib 11, the elastic deformation of the rubber will disperse the reflection direction, preventing the reflected wave from superimposing with the incident wave in the same direction.

[0025] When using the vibration-damping base of the low-noise biopeptide centrifuge of this utility model, the bearing base 2 is placed in the designated position, and the vibration isolation pad 20 on its bottom surface is in contact with the ground to achieve initial vibration reduction; check that the sound insulation panel 21 is firmly installed to ensure the integrity of the sound insulation structure; The lower spring seat 31 is fixed to the support base 2 by fastening screws. A flexible buffer pad 35 is laid between the upper spring seat 31 and the bottom surface of the support plate 1, and then fixed with fastening screws. Ensure that the top of the guide rod 34 is fixed to the bottom surface of the upper spring seat 31, and the piston sleeve 341 is adapted to the damping fluid storage chamber 33. The centrifuge is fixed above the support plate 1. After the centrifuge is started, the vibration is transmitted to the buffer assembly 3 through the support plate 1. The damping spring 30 initially buffers the vibration, and the piston sleeve 341 in the damper 32 slides relative to the damping fluid to eliminate vibration. Some vibration is absorbed by the flexible buffer pad 35. The sound insulation panel 21 blocks the leakage of noise, and the cross-shaped reinforcing rib 10 and the resonance suppression rib 11 prevent the support plate 1 from deforming and resonating.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vibration-damping base for a low-noise biopeptide centrifuge, comprising a support plate (1), characterized in that: A support base (2) is provided below the support plate (1). The side of the support base (2) is covered with a sound insulation panel (21). A vibration isolation pad (20) is provided on the bottom surface of the support base (2). Multiple buffer components (3) are provided between the support base (2) and the support plate (1). The buffer components (3) include a shock-absorbing spring (30) provided between the support base (2) and the support plate (1). A damper (32) is provided at the center of the shock-absorbing spring (30). The bottom end of the damper (32) is fixedly installed on the upper surface of the bearing base (2). The damper (32) is provided with a damping fluid storage chamber (33). A guide rod (34) is slidably connected in the damping fluid storage chamber (33). The top end of the guide rod (34) is located at the bottom of the bearing plate (1). A piston sleeve (341) is provided on the guide rod (34). The piston sleeve (341) is located in the damping fluid storage chamber (33) and is slidably connected to the damping fluid storage chamber (33).

2. The vibration-damping base of the low-noise biopeptide centrifuge according to claim 1, characterized in that: A cross-shaped reinforcing rib (10) is fixedly installed on the bottom surface of the bearing plate (1). The cross-shaped reinforcing rib (10) is in the form of a grid. Resonance suppression ribs (11) are fixedly installed at the transverse and longitudinal intersections of the cross-shaped reinforcing rib (10).

3. The vibration-damping base of the low-noise biopeptide centrifuge according to claim 1, characterized in that: The soundproof enclosure (21) is composed of inner and outer double-layer galvanized sheets (211), and sound-absorbing cotton (212) is provided between the inner and outer galvanized sheets (211).

4. The vibration-damping base of the low-noise biopeptide centrifuge according to claim 3, characterized in that: A corrugated sound-absorbing plate (213) is provided on the inner surface of the galvanized sheet (211) located in the inner layer, and the thickness of the corrugated sound-absorbing plate (213) is between 10mm and 15mm.

5. The vibration-damping base of the low-noise biopeptide centrifuge according to claim 1, characterized in that: Both ends of the shock-absorbing spring (30) are fixedly installed with spring seats (31). The lower spring seat (31) is fixedly installed on the bearing base (2), and the upper spring seat (31) is fixedly installed on the bottom surface of the bearing plate (1).

6. The vibration-damping base of the low-noise biopeptide centrifuge according to claim 5, characterized in that: The top end of the guide rod (34) is fixedly mounted on the bottom surface of the upper spring seat (31), and the size of the piston sleeve (341) is adapted to the size of the damping fluid storage chamber (33).

7. The vibration damping base of the low-noise biopeptide centrifuge according to claim 5, characterized in that: A flexible buffer pad (35) is provided between the upper spring seat (31) and the bearing plate (1), and the flexible buffer pad (35) is provided with a plurality of honeycomb-shaped buffer holes (351).

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