Shock-resistant vibration isolator

Abstract

The utility model discloses an anti-impact vibration isolator which comprises an upper base plate, a lower base plate and a connecting rod assembly. The two ends of the connecting rod assembly are hinged to the upper base plate and the lower base plate correspondingly, the connecting rod assembly comprises a plurality of single connecting rods hinged to one another, and at least one hinged end is provided with an energy dissipation assembly; an extrusion block and elastic elements in the energy consumption assembly are installed in a cavity of the installation box, and the elastic elements are evenly arranged in the circumferential direction of the extrusion block. The rotating shaft penetrates through the bearings and the extrusion blocks on the two sides of the mounting box, the rotating shaft is connected with the single connecting rods, when the rotating shaft is impacted, the upper base plate moves downwards under the action of impact force, the single connecting rods move around the hinged ends in the process, then the rotating shaft is driven to rotate, and the extrusion blocks extrude the elastic elements to conduct energy dissipation and vibration isolation. The shock resistance of the vibration isolator can be improved, and large effective rigidity and equivalent damping can be generated under small displacement.

Description

Technical Field

[0001] This utility model relates to the field of vibration isolator technology, specifically an impact-resistant vibration isolator. Background Technology

[0002] With the development of technology, various high-end equipment are facing increasingly severe vibration isolation and buffering problems. Impact is an instantaneous response process that quickly disappears within the system, but the dynamic load caused by the impact can cause extremely serious damage to the equipment structure. For example, it can lead to problems such as loosening of connectors, plastic deformation of transmission components, malfunction of instruments and meters, and detachment of internal wiring plugs.

[0003] Traditional vibration isolators are divided into linear and nonlinear systems. Linear systems mostly use rubber as the impact-resistant material; however, ordinary rubber is prone to aging and cracking at high temperatures and may deform during use or storage, affecting its service life and performance. Nonlinear systems, such as wire rope vibration isolators, have excellent dry friction damping and hysteresis characteristics, absorbing most of the energy from the vibration process. However, under impact loads, wire rope vibration isolators exhibit significant relative deformation displacement, posing a certain risk of damage to the stability of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide an impact-resistant vibration isolator to improve its impact resistance and achieve high effective stiffness and equivalent damping in linear systems under small displacements. To achieve the above objective, this invention adopts the following technical solution:

[0005] This utility model discloses an impact-resistant vibration isolator, comprising: an upper base plate, a lower base plate, and a connecting rod assembly.

[0006] The linkage assembly includes: a plurality of individual linkages that are hinged to each other, and both ends of the linkage assembly are respectively hinged to the upper substrate and the lower substrate, and an energy-dissipating component is provided at at least one hinge end.

[0007] The energy-consuming component includes: a mounting box, a pressing block, an elastic element, and a rotating shaft. The pressing block and the elastic element are installed in the cavity of the mounting box, and the elastic element is evenly distributed around the circumference of the pressing block.

[0008] Bearings are installed on both sides of the mounting box. The rotating shaft passes through the bearings and the extrusion block, and the rotating shaft is connected to the single connecting rod. When impacted, the upper base plate moves downward under the impact force. During this process, the single connecting rod moves around the hinge end, thereby driving the rotating shaft to rotate, so that the extrusion block extrudes the elastic element to dissipate energy and isolate vibration.

[0009] Furthermore, the mounting box is assembled from a bearing housing, a mounting plate, and a U-shaped plate.

[0010] The mounting plate is provided with bearing housing mounting holes and U-shaped plate mounting holes. The bearing housing and U-shaped plate are respectively provided with a first mounting protrusion and a second mounting protrusion. The bearing housing is mounted on the mounting plate by engaging the first mounting protrusion in the bearing housing mounting hole, and the U-shaped plate is mounted on the mounting plate by engaging the second mounting protrusion in the U-shaped plate mounting hole.

[0011] Preferably, at the hinge point between the connecting rod assembly and the upper substrate or at the hinge point between the connecting rod assembly and the lower substrate, the mounting plate and the upper substrate or the lower substrate are the same piece of plate.

[0012] Preferably, two sets of energy-consuming components are provided at the hinge joint between the individual connecting rods. The two sets of energy-consuming components are arranged vertically and connected to each other by the mounting plate. The two sets of energy-consuming components are respectively connected to the two hinged individual connecting rods.

[0013] Furthermore, the single-unit connecting rod is connected to one end of the rotating shaft, and the other end of the rotating shaft is connected to another adjacent single-unit connecting rod.

[0014] Furthermore, the energy-consuming component forms several mounting cavities by setting several bearing seats and U-shaped plates on the mounting plate, and the extrusion block and elastic element are installed in each mounting cavity.

[0015] Preferably, the connecting rod assembly is disposed on opposite sides between the upper substrate and the lower substrate.

[0016] Preferably, a vibration isolation spring is installed between the opposing two-sided connecting rod assemblies, and the two ends of the vibration isolation spring are respectively connected to the upper substrate and the lower substrate.

[0017] Preferably, the extrusion block is a polygonal block with inwardly recessed sides, and the elastic element is installed in the recess on each side of the extrusion block and is in contact with the extrusion block.

[0018] Preferably, the elastic element is a metal rubber.

[0019] After adopting the above technical solution, the present invention has the following effects:

[0020] This invention incorporates an energy-dissipating component within the connecting rod assembly linking the upper and lower substrates. The movement of a single connecting rod around its hinged end drives the rotation of a shaft within the energy-dissipating component, causing the compression block to press against the elastic element for energy dissipation and vibration isolation. This improves the shock resistance of the isolator, achieving high effective stiffness and equivalent damping under small displacements. Furthermore, this invention can further enhance the energy dissipation and vibration isolation effect of the isolator by increasing the number of energy-dissipating components or by adding vibration-damping springs between the upper and lower substrates. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the first state of Embodiment 1 of this utility model.

[0022] Figure 2 This is a top view of the first state of Embodiment 1 of this utility model.

[0023] Figure 3 for Figure 2 AA-direction cross-sectional view.

[0024] Figure 4 This is a three-dimensional structural diagram of the second state of Embodiment 1 of this utility model.

[0025] Figure 5 This is a top view of the second state of Embodiment 1 of this utility model.

[0026] Figure 6 for Figure 5 BB-direction cross-sectional view.

[0027] Figure 7 This is a partial exploded view of the energy-consuming component of this utility model.

[0028] Figure 8 This is a partially exploded view of the energy-consuming component when the mounting plate and the upper or lower substrate are the same plate.

[0029] Figure 9 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0030] Figure 10 This is a schematic diagram of the first structure of Embodiment 3 of this utility model.

[0031] Figure 11 This is a schematic diagram of the second structure of Embodiment 3 of the present invention.

[0032] Figure 12 This is a structural schematic diagram of Embodiment 4 of the present utility model.

[0033] Figure 13 This is a structural schematic diagram of Embodiment 5 of the present invention.

[0034] Figure 14This is a three-dimensional structural diagram of Embodiment Six of this utility model.

[0035] Main component symbols:

[0036] 1: Upper base plate, 2: Lower base plate, 3: Link assembly, 31: Single link, 4: Energy dissipation component, 41: Bearing housing, 411: First mounting protrusion, 42: Bearing, 43: Mounting plate, 431: Bearing housing mounting hole, 432: U-shaped plate mounting hole, 44: U-shaped plate, 441: Second mounting protrusion, 45: Extrusion block, 46: Elastic element, 47: Rotating shaft, 5: Vibration isolation spring. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0038] Example 1

[0039] like Figures 1 to 3 As shown, this utility model discloses an impact-resistant vibration isolator, comprising: an upper base plate 1, a lower base plate 2, and a connecting rod assembly 3.

[0040] The two ends of the linkage assembly 3 are respectively hinged to the upper substrate 1 and the lower substrate 2, and the linkage assembly 3 includes: a plurality of individual linkages 31 that are hinged to each other, and an energy dissipation component 4 is provided at at least one hinge end.

[0041] The energy-consuming component 4 includes: a mounting box, a pressing block 45, an elastic element 46, and a rotating shaft 47. The pressing block 45 and the elastic element 46 are installed in the cavity of the mounting box, and the elastic element 46 is evenly distributed around the pressing block 45.

[0042] Bearings 42 are installed on both sides of the mounting box. The rotating shaft 47 passes through the bearings 42 and the extrusion block 45, and the rotating shaft 47 is connected to the single connecting rod 31. When subjected to impact, the upper base plate 1 moves downward under the impact force. During this process, the single connecting rod 31 moves around the hinge end, thereby driving the rotating shaft 47 to rotate, so that the extrusion block 45 extrudes the elastic element 46 to dissipate energy and isolate vibration.

[0043] Combination Figure 7 and Figure 8 In this embodiment, the mounting box is assembled from a bearing seat 41, a mounting plate 43, and a U-shaped plate 44.

[0044] The mounting plate 43 is provided with a bearing housing mounting hole 431 and a U-shaped plate mounting hole 432. The bearing housing 41 and the U-shaped plate 44 are respectively provided with a first mounting protrusion 411 and a second mounting protrusion 441. The bearing housing 41 is mounted on the mounting plate 43 by inserting the first mounting protrusion 411 into the bearing housing mounting hole 431, and the U-shaped plate 44 is mounted on the mounting plate 43 by inserting the second mounting protrusion 441 into the U-shaped plate mounting hole 432.

[0045] In this embodiment, energy-dissipating components 4 are provided at the hinge joints between the connecting rod assembly 3 and the upper substrate 1 and between the connecting rod assembly 3 and the lower substrate 2, wherein the mounting plate 43 is the same plate as the upper substrate 1 and the lower substrate 2.

[0046] Secondly, in this embodiment, the linkage assembly 3 is composed of two individual linkages 31 hinged together. At the hinge between the individual linkages 31, two sets of energy-consuming components 4 are provided. The two sets of energy-consuming components 4 are arranged vertically and vertically and the mounting plate 43 is connected to each other. The two sets of energy-consuming components 4 are respectively connected to the two hinged individual linkages 31.

[0047] Furthermore, in this embodiment, the connecting rod assembly 3 is disposed on opposite sides between the upper substrate 1 and the lower substrate 2, wherein a single connecting rod 31 is connected to one end of the rotating shaft 47, and the other end of the rotating shaft 47 is connected to another adjacent single connecting rod 31. Meanwhile, the energy-consuming assembly 4 forms several mounting cavities by providing several bearing seats 41 and U-shaped plates 44 on the mounting plate 43, and each mounting cavity is equipped with a pressing block 45 and an elastic element 46.

[0048] Furthermore, in this embodiment, the extrusion block 45 is a polygonal block with inwardly recessed sides. Elastic elements 46 are installed in the recesses on each side of the extrusion block 45 and are in contact with it. The elastic elements 46 are made of metal rubber, which has a porous elastic structure. Energy is primarily dissipated through the sliding dry friction between metal wires, thereby achieving vibration isolation and energy absorption. Simultaneously, metal rubber possesses numerous advantages, including non-volatile properties in a vacuum, adaptability to radiation environments, resistance to high / low temperatures, corrosion resistance, long fatigue life, and ease of long-term storage.

[0049] Combination Figures 4 to 6As shown, the working principle of this utility model is as follows: When the impact-resistant vibration isolator is impacted, the upper base plate 1 moves inward under the impact force. During this process, the single connecting rod 31 moves around the connecting end, thereby driving the rotating shaft 47 in the energy dissipation component 4 to rotate. The first pressing block 45 in the energy dissipation component 4 rotates under the control of the rotating shaft 47 and presses the elastic elements 46 evenly arranged around the pressing block 45 to dissipate energy. After the impact ends and the external force is removed, the elastic elements 46 return to their original state. During the process of the elastic elements 46 returning to their original state, the elastic elements 46 drive the pressing block 45 to perform a reset movement, thereby causing the rotating shaft 47 to rotate in the opposite direction, thus resetting the single connecting rod 31 and the upper base plate 1.

[0050] Example 2

[0051] The difference between this embodiment and Embodiment 1 is that a vibration isolation spring 5 is installed between the two opposing connecting rod assemblies 3.

[0052] like Figure 9 As shown, in this embodiment, a vibration isolation spring 5 is installed between the two opposing connecting rod assemblies 3. The two ends of the vibration isolation spring 5 are connected to the upper substrate 1 and the lower substrate 2 respectively to improve the energy dissipation and vibration isolation effect of the vibration isolator.

[0053] Example 3

[0054] The difference between this embodiment and Embodiment 1 is that the energy-dissipating component 4 is only provided at the hinge point between the connecting rod assembly 3 and the upper substrate 1 or at the hinge point between the connecting rod assembly 3 and the lower substrate 2.

[0055] like Figure 10 and Figure 11 As shown, in this embodiment, the energy dissipation component 4 is only provided at the hinge of the connecting rod assembly 3 and the upper base plate 1 or at the hinge of the connecting rod assembly 3 and the lower base plate 2. At this time, the mounting plate 43 therein is the same plate as the upper base plate 1 or the lower base plate 2.

[0056] Example 4

[0057] The difference between this embodiment and Embodiment 1 is that the energy-dissipating component 4 is only provided at the hinge between the individual connecting rods 31.

[0058] like Figure 12 As shown, in this embodiment, energy-consuming components 4 are only provided at the hinges between individual connecting rods 31. At this time, two sets of energy-consuming components 4 are provided at the hinges between individual connecting rods 31. The two sets of energy-consuming components 4 are arranged vertically and vertically and the mounting plate 43 is connected to each other. The two sets of energy-consuming components 4 are respectively connected to the two hinged individual connecting rods 31.

[0059] Example 5

[0060] The difference between this embodiment and Embodiment 1 is that the connecting rod assembly 3 is composed of multiple individual connecting rods 31 hinged together.

[0061] like Figure 13 As shown, in this embodiment, the connecting rod assembly 3 is composed of multiple individual connecting rods 31 hinged together, and energy-dissipating components 4 are provided at the hinge points between the connecting rod assembly 3 and the upper substrate 1 and between the connecting rod assembly 3 and the lower substrate 2. Simultaneously, at the hinge points between each individual connecting rod 31, two sets of energy-dissipating components 4 are provided, arranged vertically and connected to each other by the mounting plate 43, and each set of energy-dissipating components 4 is connected to the upper and lower hinged individual connecting rods 31 respectively.

[0062] Example 6

[0063] The difference between this embodiment and Embodiment 1 is that the connecting rod assembly 3 is arranged on multiple opposite sides between the upper substrate 1 and the lower substrate 2.

[0064] like Figure 14 As shown in this embodiment, the connecting rod assembly 3 is disposed on the four opposite sides between the upper substrate 1 and the lower substrate 2.

[0065] The above description is only a preferred embodiment of the present utility model. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. An impact-resistant vibration isolator, characterized in that, include: Upper substrate (1), lower substrate (2) and connecting rod assembly (3); The two ends of the linkage assembly (3) are respectively hinged to the upper substrate (1) and the lower substrate (2), and the linkage assembly (3) includes: a plurality of individual linkages (31) that are hinged to each other, and an energy dissipation component (4) is provided at least at one hinge end. The energy-consuming component (4) includes: a mounting box, a pressing block (45), an elastic element (46), and a rotating shaft (47). The pressing block (45) and the elastic element (46) are installed in the cavity of the mounting box, and the elastic element (46) is evenly arranged in the circumference of the pressing block (45). Bearings (42) are installed on both sides of the mounting box. The rotating shaft (47) passes through the bearings (42) and the extrusion block (45). The rotating shaft (47) is connected to the single connecting rod (31). When impacted, the upper base plate (1) moves downward under the impact force. During this process, the single connecting rod (31) moves around the hinge end, thereby driving the rotating shaft (47) to rotate, so that the extrusion block (45) extrudes the elastic element (46) to dissipate energy and isolate vibration.

2. The impact-resistant vibration isolator as described in claim 1, characterized in that: The mounting box is assembled from a bearing seat (41), a mounting plate (43), and a U-shaped plate (44); The mounting plate (43) is provided with a bearing seat mounting hole (431) and a U-shaped plate mounting hole (432). The bearing seat (41) and the U-shaped plate (44) are respectively provided with a first mounting protrusion (411) and a second mounting protrusion (441). The bearing seat (41) is mounted on the mounting plate (43) by inserting the first mounting protrusion (411) into the bearing seat mounting hole (431), and the U-shaped plate (44) is mounted on the mounting plate (43) by inserting the second mounting protrusion (441) into the U-shaped plate mounting hole (432).

3. The shock-resistant vibration isolator as described in claim 2, characterized in that: At the hinge point between the connecting rod assembly (3) and the upper substrate (1) or at the hinge point between the connecting rod assembly (3) and the lower substrate (2), the mounting plate (43) and the upper substrate (1) or the lower substrate (2) are the same plate.

4. The impact-resistant vibration isolator as described in claim 2, characterized in that: At the hinge between the individual connecting rods (31), two sets of energy-consuming components (4) are provided. The two sets of energy-consuming components (4) are arranged vertically and connected to each other by the mounting plate (43). The two sets of energy-consuming components (4) are respectively connected to the two hinged individual connecting rods (31).

5. The shock-resistant vibration isolator as described in claim 2, characterized in that: The single connecting rod (31) is connected to one end of the rotating shaft (47), and the other end of the rotating shaft (47) is connected to another adjacent single connecting rod (31).

6. The shock-resistant vibration isolator as described in claim 5, characterized in that: The energy-consuming component (4) forms several mounting cavities by setting several bearing seats (41) and U-shaped plates (44) on the mounting plate (43), and each mounting cavity is equipped with the extrusion block (45) and elastic element (46).

7. The shock-resistant vibration isolator as described in claim 6, characterized in that: The connecting rod assembly (3) is disposed on opposite sides between the upper substrate (1) and the lower substrate (2).

8. The shock-resistant vibration isolator as described in claim 7, characterized in that: A vibration isolation spring (5) is installed between the two opposing connecting rod assemblies (3), and the two ends of the vibration isolation spring (5) are respectively connected to the upper substrate (1) and the lower substrate (2).

9. An impact-resistant vibration isolator as described in any one of claims 1-8, characterized in that: The extrusion block (45) is a polygonal block with inwardly recessed sides. The elastic element (46) is installed in the recess on each side of the extrusion block (45) and is connected to the extrusion block (45).

10. The impact-resistant vibration isolator as described in claim 9, characterized in that: The elastic element (46) is made of metal rubber.

Images