Vibration damping mechanism and vibration conveying device
By using a vibration damping mechanism that combines rubber springs and metal springs, the problems of short service life and high noise in vibrating conveyor devices are solved, achieving effective vibration reduction and noise reduction under different vibration conditions.
Patent Information
- Application Number
- CN202520514051.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-21
AI Technical Summary
In vibrating conveyor systems, the service life of rubber springs decreases sharply due to frequent starts and stops, and they also generate significant noise when vibration is high.
The vibration damping mechanism uses a combination of rubber springs and metal springs. The rubber springs deform individually to dampen vibrations during small vibrations, while the metal springs deform together during large vibrations to enhance the damping effect and avoid excessive deformation of the rubber springs.
It extends the service life of the rubber springs, reduces noise, and ensures low noise performance during smooth operation of the vibrating conveyor.
Smart Images
Figure CN223868439U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of conveying machinery technology, and in particular to a vibration damping mechanism and a vibrating conveying device. Background Technology
[0002] Vibration reduction is required in all aspects of production and daily life. Generally, vibration damping components are set between two parts to counteract the vibration of either part. Taking a vibrating conveyor as an example, the vibrating conveyor uses the vibration generated by the vibrating motor to transport materials from the feed port to the discharge port. Vibration damping components such as rubber springs need to be set between the vibrating conveyor trough and the frame to achieve vibration reduction. However, the frequent start and stop of the vibrating conveyor will cause the service life of the rubber springs to drop sharply. Utility Model Content
[0003] This application aims to at least partially solve one of the technical problems in the related art. To this end, this application proposes a vibration damping mechanism.
[0004] To achieve the above objectives, this application discloses a vibration damping mechanism, which includes:
[0005] A rubber spring, suitable for fixing between the first and second components; and
[0006] A metal spring, adapted to be fixed to the first component and having a gap between it and the second component;
[0007] Wherein, at least one of the first component and the second component is adapted to vibrate, and the vibration damping mechanism has a first state and a second state;
[0008] In the first state, the rubber spring undergoes elastic deformation;
[0009] In the second state, the metal spring and the second component abut against each other and deform elastically together with the rubber spring.
[0010] In some embodiments of this application, with the direction from the first component toward the second component as the height direction, the highest point of the rubber spring is higher than the highest point of the metal spring.
[0011] In some embodiments of this application, the height difference between the highest point of the rubber spring and the highest point of the metal spring is 1mm to 2mm.
[0012] In some embodiments of this application, the length of the rubber spring is greater than the length of the metal spring.
[0013] In some embodiments of this application, the metal spring is fitted over the rubber spring.
[0014] In some embodiments of this application, the rubber spring is fitted over the metal spring.
[0015] In some embodiments of this application, the inner diameter of the rubber spring is D1, and the outer diameter of the metal spring is D2, satisfying D1-D2<D2.
[0016] In some embodiments of this application, the inner wall of the rubber spring is corrugated or has a raised structure.
[0017] In some embodiments of this application, the vibration damping mechanism further includes a mounting base, the metal spring is fixed to the mounting base, the mounting base is adapted to be fixed to the first component, and the projection of the metal spring is located within the projection range of the mounting base along the axial direction of the metal spring.
[0018] In some embodiments of this application, the mounting base has a boss, and the metal spring is sleeved on the boss with an interference fit;
[0019] And / or, the rubber spring abuts against the periphery of the mounting base and is adapted to clamp and fix the mounting base with the first component.
[0020] In some embodiments of this application, the rubber spring includes an upper section, a transition section, and a lower section arranged sequentially along its axial direction, wherein the hardness of the upper section is higher than that of the transition section, and the hardness of the transition section is higher than that of the lower section.
[0021] In some embodiments of this application, the hardness of the upper segment is 70-85 Shore A, and the hardness of the lower segment is 40-55 Shore A.
[0022] In some embodiments of this application, the hardness gradient of the upper segment, the transition segment, and the lower segment is 80→65→50 Shore A.
[0023] In some embodiments of this application, the thickness of the upper section along the axial direction of the rubber spring is 1 / 3 to 1 / 2 of the thickness of the lower section.
[0024] In some embodiments of this application, the upper segment and the transition segment are bonded together, the transition segment and the lower segment are bonded together, the bonding interface between the upper segment and the transition segment, and the bonding interface between the transition segment and the lower segment are adapted to be treated by plasma activation or chemical primer.
[0025] The second aspect of this application discloses a vibrating conveying device, which includes a frame, a trough, and the aforementioned vibration damping mechanism, wherein the frame is one of the first component and the second component, and the trough is the other of the first component and the second component.
[0026] This technical solution employs both rubber and metal springs to create a vibration damping mechanism with two states. In the first state, when vibration is low, the mechanism dampens vibrations through the elastic deformation of the rubber springs, effectively suppressing noise. In the second state, when vibration is high, both the rubber and metal springs work together to dampen vibrations. The metal springs provide stronger damping than the rubber springs, preventing excessive vibration from affecting the lifespan of the rubber springs. When applied to vibrating conveyor systems, this mechanism avoids shortening the lifespan of the rubber springs due to frequent start-stop cycles and high vibrations, while also ensuring low noise levels during smooth operation.
[0027] Other advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of this application. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other designs can be obtained based on the structures shown in these drawings without creative effort.
[0029] Figure 1 This is a schematic diagram of the vibrating conveyor in some embodiments;
[0030] Figure 2 for Figure 1 A magnified view of a portion of the structure shown.
[0031] Figure 3 Schematic diagrams of vibration damping mechanisms in some embodiments;
[0032] Figure 4 Schematic diagrams of vibration damping mechanisms in some embodiments (showing dimensional parameters);
[0033] Figure 5 This is a cross-sectional view of a rubber spring in some embodiments.
[0034] Explanation of icon numbers:
[0035] Vibration damping mechanism 1000, rubber spring 1100, upper section 1110, transition section 1120, lower section 1130, metal spring 1200, mounting base 1300, boss 1310, gap 1400, first component 2000, second component 3000, feed port 3100, discharge port 3200.
[0036] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0039] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0040] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.
[0041] The first aspect of this application discloses a vibration damping mechanism 1000, combined with... Figure 1 and Figure 2As shown, in some embodiments, the vibration damping mechanism 1000 includes a rubber spring 1100 and a metal spring 1200. The rubber spring 1100 is fixed between the first component 2000 and the second component 3000, and the metal spring 1200 is fixed to the first component 2000. A gap 1400 is provided between the metal spring 1200 and the second component 3000. At least one of the first component 2000 and the second component 3000 can vibrate. The vibration damping mechanism 1000 has a first state and a second state. In the first state, the rubber spring 1100 elastically deforms. In the second state, the metal spring 1200 abuts against the second component 3000, thereby elastically deforming together with the rubber spring 1100.
[0042] By setting rubber spring 1100 and metal spring 1200, the vibration damping mechanism 1000 has two states. When the vibration is small, the vibration damping mechanism 1000 is in the first state, and the vibration damping mechanism 1000 plays a role in vibration damping through the elastic deformation of rubber spring 1100, and can effectively suppress the generation of noise. When the vibration is large, the vibration damping mechanism 1000 is in the second state, and rubber spring 1100 and metal spring 1200 work together to play a role in vibration damping. Compared with rubber spring 1100, metal spring 1200 has a stronger vibration damping effect, avoiding excessive vibration from affecting the service life of rubber spring 1100.
[0043] Specifically, at least one of the first component 2000 and the second component 3000 can vibrate. This can be either the first component 2000 vibrating while the second component 3000 does not, or the first component 2000 not vibrating while the second component 3000 vibrates, or both the first component 2000 and the second component 3000 vibrate. The rubber spring 1100 is an elastic element made using the elastic properties of rubber material. The rubber spring 1100 is fixed between the first component 2000 and the second component 3000, thereby providing support for both components. The method by which the rubber spring 1100 is fixed between the first component 2000 and the second component 3000 can be referred to in related technologies. Details not included in this application are not elaborated upon. When at least one of the first component 2000 and the second component 3000 vibrates, the rubber spring 1100 elastically deforms and generates elastic force on the first component 2000 and the second component 3000, thus offsetting the vibration and achieving vibration reduction. Due to the inherent characteristics of the rubber spring 1100, the noise generated during the vibration reduction process is relatively small. However, if vibration reduction is achieved solely by the rubber spring 1100, its elastic modulus is relatively low (compared to the metal spring 1200), resulting in relatively weak load-bearing capacity. This would lead to a sharp decrease in the service life of the rubber spring 1100 when subjected to frequent and large vibrations. Therefore, this embodiment combines the use of the rubber spring 1100 and the metal spring 1200 to achieve both vibration reduction and noise reduction while also ensuring the service life of the vibration damping mechanism 1000 (rubber spring 1100).
[0044] A metal spring 1200 is fixed to the first component 2000 and has a gap 1400 between it and the second component 3000. Thus, the metal spring 1200 and the rubber spring 1100 cooperate to give the vibration damping mechanism 1000 two states: a first state and a second state. In the first state, the vibration damping mechanism 1000 dampens vibration through the elastic deformation of the rubber spring 1100. In the second state, the metal spring 1200 and the second component 3000 are in contact, and the vibration damping mechanism 1000 dampens vibration through the combined elastic deformation of the metal spring 1200 and the rubber spring 1100. That is, when the vibration is relatively small, the metal spring 1200 and the second component 3000 are not in contact, and vibration damping is not achieved through the metal spring 1200, but rather through the rubber spring 1100. In this state, the vibration damping mechanism 1000 is in the first state. Due to the characteristics of the rubber spring 1100, the vibration damping noise is relatively low. When the vibration is relatively large, the deformation of the rubber spring 1100 is greater than that when the vibration is relatively small, causing the metal spring 1200 and the second component 3000 to come into contact, the gap 1400 disappears, and the rubber spring 1100 and the metal spring 1200 work together to achieve vibration reduction. At this time, the vibration damping mechanism 1000 is in the second state. Based on the characteristics of the metal spring 1200, the elastic modulus of the metal spring 1200 is larger than that of the rubber spring 1100, which has a stronger vibration damping effect and effectively prevents the deformation of the rubber spring 1100 from being too large, thereby avoiding a sharp decrease in the service life of the rubber spring 1100. Furthermore, through the cooperation of the metal spring 1200 and the rubber spring 1100, under the action of the rubber spring 1100, the problems of large vibration amplitude and high noise of the metal spring 1200 are effectively prevented. With this setting, on the basis of achieving vibration reduction by the vibration damping mechanism 1000, noise is effectively reduced and service life is extended.
[0045] The application of the vibration damping mechanism 1000 to a vibrating conveyor device will be used as an example, or in other words, the vibrating conveyor device includes the vibration damping mechanism 1000. Continuing with... Figure 1 and Figure 2As shown, the vibrating conveyor includes a frame, a trough, and the aforementioned vibration damping mechanism 1000. The frame is one of the first component 2000 and the second component 3000, and the trough is the other of the first component 2000 and the second component 3000. In this embodiment, taking the frame as the first component 2000 and the trough as the second component 3000 as an example, the frame is the supporting structure of the vibrating conveyor. Generally, the frame is installed on the ground to support other components of the vibrating conveyor. The trough is the structure of the vibrating conveyor used to convey materials. A vibrating motor is installed on the trough. Through the vibration of the vibrating motor, the trough will vibrate accordingly, thereby conveying the material along the trough. The material is conveyed from the inlet to the outlet and discharged. The vibration damping mechanism 1000 is installed and fixed between the trough and the frame. The trough is located above the vibration damping mechanism 1000 and supported by it. The vibration damping mechanism 1000 is located above the frame and supported by it. The vibration damping mechanism 1000 achieves vibration damping of the trough.
[0046] The bottom end of the rubber spring 1100 of the vibration damping mechanism 1000 is fixed to the frame, and the top end of the rubber spring 1100 is fixed to the trough. The bottom end of the metal spring 1200 of the vibration damping mechanism 1000 is fixed to the frame, and there is a gap 1400 between the top end of the metal spring 1200 and the trough. When the vibration of the trough is relatively small, the top end of the metal spring 1200 does not contact the trough, and vibration damping of the trough is not achieved through the metal spring 1200. Instead, vibration damping of the trough is achieved through the elastic deformation of the rubber spring 1100. At this time, the vibration damping mechanism 1000 is in the first state. When the vibration of the trough is relatively large, the deformation of the rubber spring 1100 is larger than when the vibration is relatively small, so that the gap 1400 between the metal spring 1200 and the second component 3000 disappears, and the metal spring 1200 and the second component 3000 come into contact. In this way, the rubber spring 1100 and the metal spring 1200 jointly achieve vibration damping of the trough through elastic deformation. At this time, the vibration damping mechanism 1000 is in the second state.
[0047] Generally speaking, the vibration generated by the vibrating conveyor is relatively large when it starts and stops, and relatively small when it runs smoothly. By setting the vibration damping mechanism 1000, the service life of the rubber spring 1100 can be avoided from decreasing sharply due to the large vibration caused by frequent start and stop of the vibrating conveyor, and the low noise effect of the vibrating conveyor can also be guaranteed when it runs smoothly.
[0048] Combination Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, with the direction from the first component 2000 toward the second component 3000 as the height direction, the highest point of the rubber spring 1100 is higher than the highest point of the metal spring 1200. This helps to simplify the structure while achieving vibration reduction of the vibration damping mechanism 1000.
[0049] Taking the first component 2000 as the frame and the second component 3000 as the material trough as an example, the top of the rubber spring 1100 is fixed to the material trough, and there is a gap 1400 between the top of the metal spring 1200 and the material trough. If the highest point of the metal spring 1200 is higher than the highest point of the rubber spring 1100, then the material trough needs to be designed with a corresponding clearance space to achieve the gap 1400 between it and the top of the metal spring 1200, which will lead to structural complexity. In this embodiment, the highest point of the rubber spring 1100 is higher than the highest point of the metal spring 1200, and the material trough does not need to be designed with a clearance space to achieve the formation of the gap 1400, which is more conducive to simplifying the structure.
[0050] Optionally, in some embodiments, the height difference between the highest point of the rubber spring 1100 and the highest point of the metal spring 1200 is ΔH, where ΔH is 1mm to 2mm, further optimizing the protection of the rubber spring 1100 by the metal spring 1200, so that the vibration damping mechanism 1000 achieves a better balance between noise and service life.
[0051] Optionally, in some embodiments, the length of the rubber spring 1100 is greater than the length of the metal spring 1200, and the length is the dimension measured along the axial direction of the rubber spring 1100 or the axial direction of the metal spring 1200 (the length in the figures can also be considered as height), such as... Figure 4 The rubber spring 1100 shown has a length of L1, and the metal spring 1200 has a length of L2. This arrangement is more conducive to the formation of the gap 1400. The rubber spring 1100 and the metal spring 1200 can even be installed on the same plane, further simplifying the complexity of the structure.
[0052] In some embodiments, a metal spring 1200 is fitted with a rubber spring 1100. It is understood that the metal spring 1200 is a hollow structure and surrounds a certain internal space. By fitting the rubber spring 1100 onto the metal spring 1200, the rubber spring 1100 occupies the internal space surrounded by the metal spring 1200. This allows the cooperation between the metal spring 1200 and the rubber spring 1100 to make full use of the space, making the vibration damping mechanism 1000 more compact and conducive to miniaturization design.
[0053] Similarly, in other embodiments, a rubber spring 1100 may be fitted with a metal spring 1200, such as... Figure 3 As shown, the rubber spring 1100 also has a hollow structure and surrounds a certain internal space. The metal spring 1200 is sleeved on the rubber spring 1100. The metal spring 1200 occupies the internal space surrounded by the rubber spring 1100, so that the cooperation between the metal spring 1200 and the rubber spring 1100 makes full use of the space.
[0054] Based on the rubber spring 1100 sleeved with a metal spring 1200, combined with Figure 4 As shown, the inner diameter of the rubber spring 1100 is D1, and the outer diameter of the metal spring 1200 is D2, satisfying D1-D2<D2. Thus, along the radial direction of the metal spring 1200, the metal spring 1200 and the rubber spring 1100 are relatively close. When the rubber spring 1100 is about to undergo excessive deformation, the outer wall of the metal spring 1200 can contact the inner wall of the rubber spring 1100. The metal spring 1200 can thus provide support to the rubber spring 1100 approximately along its radial direction, preventing excessive deformation of the rubber spring 1100 and further extending its service life. Optionally, satisfying D1-D2<0.5*D2 further optimizes the supporting effect of the metal spring 1200 on the rubber spring 1100.
[0055] Optionally, in some embodiments, the inner wall of the rubber spring 1100 is corrugated or has a raised structure. With such a configuration, when the rubber spring 1100 is compressed, the contact surface between the metal spring 1200 and the rubber spring 1100 gradually increases, forming a variable contact surface structure, thereby achieving a nonlinear damping effect and further improving the vibration reduction effect.
[0056] Combination Figures 1 to 3 As shown, in some embodiments, the vibration damping mechanism 1000 further includes a mounting base 1300, a metal spring 1200 fixed to the mounting base 1300, and the mounting base 1300 fixed to the first component 2000. The projection of the metal spring 1200 is located within the projection range of the mounting base 1300.
[0057] Specifically, the metal spring 1200 has the characteristic of large vibration amplitude. Therefore, by fixing the metal spring 1200 to the mounting base 1300 and projecting it along the axial direction of the metal spring 1200, the projection of the metal spring 1200 is located within the projection range of the mounting base 1300. By setting the mounting base 1300, the contact area with the first component 2000 is increased. This can work with the rubber spring 1100 to suppress the bounce of the metal spring 1200, and is more conducive to reducing the noise of the vibration damping mechanism 1000 when subjected to instantaneous impact.
[0058] Optionally, to facilitate the connection between the mounting base 1300 and the metal spring 1200, combined with Figure 3 As shown, the mounting base 1300 has a boss 1310, and the metal spring 1200 is sleeved on the boss 1310 with an interference fit, which facilitates the assembly between the metal spring 1200 and the mounting base 1300.
[0059] Combination Figure 3As shown, in some embodiments, the rubber spring 1100 abuts against the periphery of the mounting base 1300 and is adapted to clamp and fix the mounting base 1300 with the first component 2000. The mounting base 1300 can be fixed to the first component 2000 by welding, screwing, etc. In this embodiment, based on the rubber spring 1100 being fixed to the first component 2000 and the second component 3000, the installation of the metal spring 1200 is simplified by the rubber spring 1100 abutting against the periphery of the mounting base 1300 and clamping and fixing the mounting base 1300 with the first component 2000. Taking the first component 2000 as a frame and the second component 3000 as a feed trough, the rubber spring 1100 is fixed between the first component 2000 and the second component 3000, and the mounting base 1300 is clamped between the rubber spring 1100 and the frame. This achieves the fixing of the mounting base 1300, which in turn fixes the metal spring 1200, facilitating the installation of the vibration damping mechanism 1000.
[0060] Combination Figure 5 As shown, in some embodiments, the rubber spring 1100 includes an upper section 1110, a transition section 1120, and a lower section 1130 arranged sequentially along its axial direction. The upper section 1110 has a higher hardness than the transition section 1120, and the transition section 1120 has a higher hardness than the lower section 1130. The upper section 1110 forms a high-hardness zone to support static loads, while the lower section 1130 forms a low-hardness zone to absorb dynamic impacts. This constitutes an asymmetrical structure, optimizing load distribution and improving vibration damping. Furthermore, the design of the transition section 1120 avoids interface tearing caused by direct contact between the upper section 1110 and the lower section 1130. The hardness of the upper section 1110 can be 70–85 Shore A, and the hardness of the lower section 1130 can be 40–55 Shore A, allowing the rubber spring 1100 to balance vibration damping and service life. For example, the hardness gradient of the upper section 1110, the transition section 1120, and the lower section 1130 can be 80→65→50 Shore A.
[0061] Optionally, in some embodiments, the thickness of the upper section 1110 along the axial direction of the rubber spring 1100 is 1 / 3 to 1 / 2 of the thickness of the lower section 1130. For example, the thickness of the upper section 1110 along the axial direction of the rubber spring 1100 is 5 mm, and the thickness of the lower section 1130 along the axial direction of the rubber spring 1100 is 10 mm to 15 mm, so that the rubber spring 1100 can take into account both load-bearing capacity and flexibility.
[0062] Optionally, in some embodiments, the upper segment 1110 and the transition segment 1120 are bonded, the transition segment 1120 and the lower segment 1130 are bonded, and the bonding interfaces between the upper segment 1110 and the transition segment 1120, as well as between the transition segment 1120 and the lower segment 1130, are suitable for plasma activation treatment or chemical priming treatment. Plasma activation treatment can change the chemical and physical properties of the bonding interface, significantly improving the bonding performance. Chemical priming treatment improves the bonding performance by applying a layer of chemical primer (such as Chemlok 205) to the bonding interface. Plasma activation or chemical priming is beneficial for bonding strengths between rubbers of different hardnesses greater than 3 MPa (based on ASTM D429 test method).
[0063] This application also discloses a vibration conveying device, combined with Figures 1 to 4 As shown, the vibrating conveying device includes a frame, a trough, and the aforementioned damping mechanism 1000. The damping mechanism 1000 includes a rubber spring 1100 and a metal spring 1200. The rubber spring 1100 is fixed between the first component 2000 and the second component 3000, and the metal spring 1200 is fixed to the first component 2000. A gap 1400 is provided between the metal spring 1200 and the second component 3000. At least one of the first component 2000 and the second component 3000 can vibrate. The damping mechanism 1000 has a first state and a second state. In the first state, the rubber spring 1100 elastically deforms. In the second state, the metal spring 1200 abuts against the second component 3000, thereby elastically deforming together with the rubber spring 1100. The frame is one of the first component 2000 and the second component 3000, and the trough is the other of the first component 2000 and the second component 3000.
[0064] By configuring a rubber spring 1100 and a metal spring 1200, the vibration damping mechanism 1000 has two states. When the vibration is small, the vibration damping mechanism 1000 is in the first state, where the rubber spring 1100 elastically deforms to dampen vibration and effectively suppress noise generation. When the vibration is large, the vibration damping mechanism 1000 is in the second state, where both the rubber spring 1100 and the metal spring 1200 elastically deform to dampen vibration. Compared to the rubber spring 1100, the metal spring 1200 has a stronger damping effect, preventing excessive vibration from affecting the service life of the rubber spring 1100. It is understood that the vibration damping mechanism 1000 of the vibration conveying device in this embodiment adopts the technical solution of the above embodiment, and therefore possesses at least the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.
[0065] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.
Claims
1. A vibration damping mechanism (1000), characterized in that, The vibration damping mechanism (1000) includes: A rubber spring (1100) is suitable for fixing between a first component (2000) and a second component (3000); and A metal spring (1200) is adapted to be fixed to the first component (2000) and has a gap (1400) between it and the second component (3000); Wherein, at least one of the first component (2000) and the second component (3000) is adapted to vibrate, and the vibration damping mechanism (1000) has a first state and a second state; In the first state, the rubber spring (1100) undergoes elastic deformation; In the second state, the metal spring (1200) and the second component (3000) abut against each other and elastically deform together with the rubber spring (1100).
2. The vibration damping mechanism (1000) as described in claim 1, characterized in that, With the direction from the first component (2000) toward the second component (3000) as the height direction, the highest point of the rubber spring (1100) is higher than the highest point of the metal spring (1200).
3. The vibration damping mechanism (1000) as described in claim 2, characterized in that, The height difference between the highest point of the rubber spring (1100) and the highest point of the metal spring (1200) is 1mm to 2mm.
4. The vibration damping mechanism (1000) as described in claim 2, characterized in that, The length of the rubber spring (1100) is greater than the length of the metal spring (1200).
5. The vibration damping mechanism (1000) as described in claim 1, characterized in that, The inner diameter of the rubber spring (1100) is D1, and the outer diameter of the metal spring (1200) is D2, satisfying D1-D2<D2; And / or, the inner wall of the rubber spring (1100) is corrugated or has a raised structure.
6. The vibration damping mechanism (1000) as described in claim 1, characterized in that, The vibration damping mechanism (1000) further includes a mounting base (1300), the metal spring (1200) is fixed to the mounting base (1300), the mounting base (1300) is adapted to be fixed to the first component (2000), and the projection of the metal spring (1200) is located within the projection range of the mounting base (1300) along the axial direction of the metal spring (1200).
7. The vibration damping mechanism (1000) as described in claim 6, characterized in that, The mounting base (1300) has a boss (1310), and the metal spring (1200) is sleeved on the boss (1310) and is interference-fitted. And / or, the rubber spring (1100) abuts against the periphery of the mounting base (1300) and is adapted to clamp and fix the mounting base (1300) with the first component (2000).
8. The vibration damping mechanism (1000) as described in claim 1, characterized in that, The rubber spring (1100) includes an upper section (1110), a transition section (1120) and a lower section (1130) arranged sequentially along its axial direction. The hardness of the upper section (1110) is higher than that of the transition section (1120), and the hardness of the transition section (1120) is higher than that of the lower section (1130).
9. The vibration damping mechanism (1000) as described in claim 8, characterized in that, The upper section (1110) has a hardness of 70-85 Shore A, and the lower section (1130) has a hardness of 40-55 Shore A. And / or, the hardness gradient of the upper segment (1110), the transition segment (1120) and the lower segment (1130) is 80→65→50 Shore A; And / or, along the axial direction of the rubber spring (1100), the thickness of the upper section (1110) is 1 / 3 to 1 / 2 of the thickness of the lower section (1130); And / or, the upper segment (1110) and the transition segment (1120) are bonded together, the transition segment (1120) and the lower segment (1130) are bonded together, the bonding interface between the upper segment (1110) and the transition segment (1120), and the bonding interface between the transition segment (1120) and the lower segment (1130) are adapted to be treated by plasma activation or chemical primer.
10. A vibrating conveying device, characterized in that, The vibrating conveying device includes a frame, a trough, and a vibration damping mechanism (1000) as described in any one of claims 1 to 9, wherein the frame is one of the first component (2000) and the second component (3000), and the trough is the other of the first component (2000) and the second component (3000).