Bionic vibration reduction and isolation device

Abstract

The invention discloses a bionic vibration reduction and isolation device, which relates to the technical field of vibration reduction, and comprises a plurality of support plates vertically arranged side by side, an elastic assembly and a connecting rod assembly, the supporting plate on the upper layer is used for bearing a heavy object, and every two adjacent supporting plates can relatively move in the vertical direction; the elastic assemblies can be connected to the two adjacent supporting plates, and the elastic assemblies can support the upper-layer supporting plate in the inclined direction and the vertical direction. The connecting rod assemblies can be connected to the two adjacent supporting plates, the connecting rod assemblies are movably connected to the supporting plates, and the connecting rod assemblies can buffer the relative movement between the two adjacent supporting plates. According to the bionic vibration reduction and isolation device, the low-frequency vibration isolation performance can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of vibration reduction, and in particular to a bionic vibration reduction and isolation device. Background Art

[0002] In the field of engineering machinery, such as automobile parts manufacturing, vibration is a widely existing form of mechanical motion, and its impact on personnel health and equipment safety is ubiquitous. Among them, some vibrations are beneficial to human production activities and are worth preserving, while other vibrations have negative effects on many aspects and need to be reduced or even eliminated through human design.

[0003] Common mechanical structures for vibration isolation are divided into three types: active, semi-active and passive. Both active and semi-active types add active power elements inside the mechanism, which often increases the complexity of the mechanism, and their vibration isolation frequency band is often narrow, and cannot achieve effective vibration isolation within a wide range. Passive vibration isolation mechanisms are usually linear vibration isolation devices, which have lower system complexity and higher safety and reliability, and often have better vibration isolation effects in the high-frequency range, but poor performance in the low-frequency range. Summary of the invention

[0004] The purpose of the present invention is to provide a bionic vibration reduction and isolation device to solve the problems existing in the above-mentioned prior art and to improve the low-frequency vibration isolation performance.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a bionic vibration reduction and isolation device, comprising a plurality of support plates, elastic components and connecting rod components arranged vertically side by side; the upper support plates are used to bear heavy objects, and two adjacent support plates can move relative to each other vertically; the elastic component can be connected to two adjacent support plates, and the elastic component can support the upper support plates obliquely and vertically; the connecting rod component can be connected to two adjacent support plates, the connecting rod component is movably connected to the support plates, and the connecting rod component can buffer the relative movement between two adjacent support plates.

[0007] Preferably, the elastic component includes multiple oblique elastic supports and at least one vertical elastic support, and one oblique elastic support is arranged between two adjacent support plates, and the oblique elastic support can perform oblique buffering between the corresponding support plates; the two ends of the vertical elastic support are respectively fixedly connected to the upper and lower support plates and are used for vertical buffering, and the vertical elastic support passes through the middle support plate.

[0008] Preferably, the oblique elastic support comprises a plurality of oblique springs, both ends of which are rotatably connected to the corresponding support plate; the plurality of oblique springs are symmetrically arranged about the central vertical section of the support plate.

[0009] Preferably, the vertical elastic support is provided in one piece and is vertically arranged at the center of the plurality of support plates.

[0010] Preferably, the oblique spring supports on both sides of the middle support plate are symmetrically arranged with respect to a central horizontal cross-section of the middle support plate.

[0011] Preferably, the connecting rod assembly includes a support rod obliquely arranged between two adjacent support plates, one end of the support rod is rotatably connected to one of the support plates, and the other end is slidably connected to the adjacent support plate; when the two adjacent support plates move relatively, the support rod can rotate relative to one of the support plates and slide relative to the other support plate.

[0012] Preferably, the support rods on both sides of the middle support plate are symmetrically arranged with respect to a central horizontal cross-section of the middle support plate.

[0013] Preferably, the plurality of support rods between two adjacent support plates are symmetrically arranged with respect to a central vertical section of the support plate.

[0014] Preferably, a plurality of guide rods are vertically slidably penetrated between the plurality of support plates vertically arranged side by side, and the lower end of each guide rod is fixedly connected to the support plate of the lower layer.

[0015] Preferably, the support plate and the connecting rod assembly are made of resin, nylon or acrylic.

[0016] Compared with the prior art, the present invention has achieved the following technical effects:

[0017] The bionic vibration reduction and isolation device provided by the present invention realizes overall vertical support by arranging multiple support plates that can move vertically relative to each other; realizes oblique and vertical coupling support between two adjacent support plates by arranging elastic components, and cooperates with the connecting rod component to provide support and buffering when adjacent support plates move relative to each other, thereby improving the overall vibration isolation performance in the low-frequency range, and thus being able to meet the vibration isolation performance in the low-frequency range required in the field of automobile parts manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 An axonometric view of the assembly of the bionic vibration reduction and isolation device provided in Example 1;

[0020] Figure 2 A side view of an assembly of the bionic vibration reduction and isolation device provided in Example 1;

[0021] Figure 3 A front view of an assembly of the bionic vibration reduction and isolation device provided in Example 1;

[0022] Figure 4 A schematic top view of the upper support plate provided in Example 1;

[0023] Figure 5 A left side schematic diagram of an upper support plate provided in Example 1;

[0024] Figure 6 A schematic diagram of the front view of the upper support plate provided in Example 1;

[0025] Figure 7 A schematic top view of the middle support plate provided in Example 1;

[0026] Figure 8 A left schematic diagram of a middle support plate provided in Example 1;

[0027] Fig. 9 A schematic front view of the middle support plate provided in Example 1;

[0028] Fig.10 A schematic top view of the lower support plate provided in Example 1;

[0029] Fig.11 A left side schematic diagram of the lower support plate provided in Example 1;

[0030] Fig.12 A schematic diagram of the front view of the lower support plate provided in Example 1;

[0031] Fig.13 A schematic front view of a bearing seat provided in Embodiment 1;

[0032] Fig.14 A schematic top view of the bearing seat provided in Example 1;

[0033] Fig.15 A left side schematic diagram of the bearing seat provided in the first embodiment;

[0034] Fig.16 This is a comparison chart of the vibration isolation effects of the bionic vibration reduction and isolation device provided in Example 1 and the traditional linear structure vibration isolation device.

[0035] In the figure: 1-bionic vibration reduction and isolation device; 11-support plate; 111-guide rod; 12-elastic component; 121-oblique elastic support; 122-vertical spring support; 123-oblique spring; 13-connecting rod assembly; 131-support rod; 132-slide rail; 14-bearing seat. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The purpose of the present invention is to provide a bionic vibration reduction and isolation device to solve the problems existing in the above-mentioned prior art and to improve the low-frequency vibration isolation performance.

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Embodiment 1

[0040] This embodiment provides a bionic vibration reduction and isolation device 1, see Figure 1-Figure 3 , including a plurality of support plates 11, elastic components 12 and connecting rod components 13 arranged vertically side by side; the upper support plate 11 is used to bear heavy objects, and two adjacent support plates 11 can move relative to each other vertically; the elastic component 12 can be connected to two adjacent support plates 11, and the elastic component 12 can support the upper support plate 11 obliquely and vertically; the connecting rod component 13 can be connected to two adjacent support plates 11, and the connecting rod component 13 is movably connected to the support plate 11, and the connecting rod component 13 can buffer the relative movement between two adjacent support plates 11.

[0041] By setting up a plurality of support plates 11 capable of vertical relative movement, the overall vertical support is achieved; by setting up an elastic component 12, the oblique and vertical coupling support between two adjacent support plates 11 is achieved, and the connecting rod component 13 is used to provide support and buffering when the adjacent support plates 11 move relative to each other, thereby improving the overall vibration isolation performance in the low-frequency range, and further facilitating the improvement of broadband, heavy-load and low-complexity multi-objective vibration isolation performance.

[0042] In the optional scheme of this embodiment, it is more preferred that the elastic component 12 includes a plurality of oblique elastic supports 121 and at least one vertical elastic support 122, and an oblique elastic support 121 is arranged between each adjacent support plate 11, and the oblique elastic support 121 can perform oblique buffering between the corresponding support plates 11; the two ends of the vertical elastic support 122 are respectively fixedly connected to the upper and lower support plates 11 and are used for vertical buffering, and the vertical elastic support 122 passes through the middle support plate 11; oblique and vertical coupling support is performed by the oblique elastic support 121 and the vertical elastic support 122.

[0043] In the optional solution of this embodiment, it is more preferred that the oblique elastic support 121 includes a plurality of oblique springs 123, both ends of the oblique springs 123 are connected by Figure 13-15 The bearing seat 14 shown is rotatably connected to the corresponding support plate 11, and multiple oblique springs 123 are symmetrically arranged about the central vertical section of the support plate 11, that is, multiple oblique springs 123 in the same layer are symmetrically arranged about the central vertical section. The symmetrical structure can provide more stable buffering.

[0044] In the optional scheme of this embodiment, it is more preferred that the vertical elastic support 122 is set as one, which is vertically set at the center of multiple support plates 11, and the vertical elastic support 122 is set as a vertical spring, which is vertically set at the overall center to vertically support the uppermost support plate 11.

[0045] In the optional scheme of this embodiment, it is more preferred that the oblique springs 123 on both sides of the middle support plate 11 are symmetrically arranged with respect to the central horizontal section of the middle support plate 11, that is, the oblique springs 124 on the upper and lower sides of the middle support plate 11 are symmetrically arranged to improve the overall support stability.

[0046] In the optional scheme of this embodiment, it is more preferred that the connecting rod assembly 13 includes a support rod 131 obliquely arranged between two adjacent support plates 11, one end of the support rod 131 is rotatably connected to one support plate 11, and the other end is slidably connected to the adjacent support plate 11 through a slide rail 132; when the two adjacent support plates 11 move relatively, the support rod 131 can rotate relative to one support plate 11 and slide relative to the other support plate 11, and the support rod 131 can buffer the sliding energy consumption with the support plates 11.

[0047] In the optional scheme of this embodiment, it is more preferred that the support rods 131 on both sides of the middle support plate 11 are symmetrically arranged with respect to the central horizontal cross-section of the middle support plate 11, that is, the support rods 131 on the upper and lower sides of the middle support plate 11 are symmetrically arranged to improve stability.

[0048] In the optional scheme of this embodiment, it is more preferred that the multiple support rods 131 between two adjacent support plates 11 are symmetrically arranged about the central vertical section of the support plate 11, that is, the multiple support rods 131 in the same layer are symmetrically arranged about the central vertical section, and the symmetrical arrangement ensures the stability of the energy-consuming support.

[0049] In the optional scheme of this embodiment, it is more preferred that a plurality of guide rods 111 are vertically slidably penetrated between the plurality of support plates 11 vertically arranged side by side, and the lower end of each guide rod 111 is fixedly connected to the support plate 11 of the lower layer; vertical guidance is performed by the plurality of guide rods 111 to avoid horizontal displacement between adjacent support plates 11.

[0050] In the optional solutions of this embodiment, it is more preferred that the support plate 11 and the connecting rod assembly 13 are both made of lightweight materials, such as resin, nylon or acrylic, which have sufficient strength while reducing weight.

[0051] In the bionic vibration reduction and isolation device 1 provided in this embodiment, three support plates 11 may be provided, which are respectively as follows: Figure 4-6 The upper plate shown, Figure 7-9 The middle plate shown and Figure 10-12 In the lower plate shown in the figure, each layer has four inclined springs 123, each layer has two support rods 131, and each layer has one vertical spring. The specific distribution is as follows: Figure 1 The cross section shown is similar to that of a lotus leaf stem, with two oblique springs 123 and a support rod 131 arranged on the left side of the middle vertical cross section of each layer, the oblique springs 123 and the support rod 131 having opposite inclination directions, and the support rod 131 being supported between the two oblique springs 123, and both ends of the oblique springs 123 being rotatably connected to the corresponding support plates 11 through bearing seats 14; the hollow arrangement of the middle plate facilitates the rotatable connection of each support rod 131 with the inner middle of the middle plate, and each support rod 131 is slidably connected to the upper plate and the lower plate through a slide rail 132, the upper end of the upper oblique spring 123 is rotatably connected to the inner side of the upper plate, the lower end of the upper oblique spring 123 is rotatably connected to the outer side of the middle plate, the upper end of the lower oblique spring 123 is rotatably connected to the outer side of the middle plate, and the lower end of the lower oblique spring 123 is rotatably connected to the inner side of the lower plate.

[0052] definition Figure 3 The left and right sides are X-direction. The X-coordinates of the connection points of the oblique springs 123 on the middle plate are different from those of the connection points of the oblique springs 123 on the upper and lower plates. The oblique springs 123 and the middle plate form a certain angle according to the lengths of the different oblique spring selections and the vertical spring selections, such as Figure 3 As shown, the geometric relationship is that Wherein, α is the angle between the inclined spring 123 and the horizontal direction, x 0is the difference between the coordinates of the bearing seat 14 of the upper and lower layer oblique springs 123 in the X direction and the coordinates of the bearing seat 14 of the middle layer oblique springs 123 in the X direction, d is the projection length of the centers of the two ends of the oblique spring 123 in the vertical direction, and l is the distance between the centers of the two ends of the oblique spring 123. The following geometric relationship is established: Where H is the total vertical height of the vibration isolation mechanism. is the thickness of the upper plate, is the thickness of the lower plate, is the thickness of the middle layer, p represents plate, u represents up, d represents down, c represents center, is the distance between the center of one end of the oblique spring 123 and the end point in the vertical projection, is the distance between the center of the other end of the oblique spring 123 and the end point in the vertical projection, s represents the spring, sp represents the projection of the spring, 1 represents one end, and 2 represents the other end.

[0053] When the upper plate carries a heavy object of a certain mass (the object to be isolated), the structure contracts downward to the initial equilibrium position, and then when the lower plate is vertically excited, the entire structure moves vertically along the Y direction under the action of the guide rod 111; the vertical spring plays a supporting role in the vertical direction, and when it is subjected to vertical downward pressure, it produces a compressive displacement deformation to reduce the downward gravitational acceleration; and when it is subjected to the force / displacement / acceleration transmitted upward, it produces a tensile deformation to reduce the upward movement trend.

[0054] The support plate 11 and the support rod 131 are both made of lightweight materials, and weigh 0.195Kg each; the upper plate carries a load of 1.95Kg; the four vertical guide rods 111 have a diameter of 10mm, and the distance between their centers and the edge of the support plate 11 is 15mm, and their lengths are 110mm; the lengths of the support rods 131 are 60mm, and the diameters of both ends of the support rods 131 are 6mm; the width of the slide rails 132 on the lower side of the upper plate and the upper side of the lower plate is 3mm, and the length is 40mm; the distance between the centers of the two ends of the vertical spring is 105mm, and the distance between the centers of the two ends of the oblique spring 123 is 62mm; the thickness of the upper plate is 5mm, the thickness of the middle plate is 10mm, and the thickness of the lower plate is 5mm; see Fig.16 By comparing the vibration isolation effect with that of the traditional linear vibration isolation device, it can be seen that the traditional linear vibration isolation device only retains the upper and lower plates compared to the bionic vibration reduction and isolation device 1 provided in this embodiment, and the sizes of the upper and lower plates remain unchanged. In addition, the original guide rod 111 is replaced by a vertical spring with a length of 110 mm; the initial vibration isolation frequency of the bionic vibration reduction and isolation device 1 provided in this embodiment is 7.05 Hz, which is 55.7% lower than the initial vibration isolation frequency of the traditional linear vibration isolation device 15.92 Hz. It can be seen that the vibration isolation performance of the bionic vibration reduction and isolation device 1 provided in this embodiment in the low-frequency range is better.

[0055] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A bionic vibration reduction and isolation device, characterized in that: include: A plurality of support plates (11) arranged side by side vertically, wherein the support plates (11) at the upper layer are used to bear heavy objects, and two adjacent support plates (11) are capable of relative vertical movement; An elastic component (12) capable of being connected to two adjacent support plates (11), wherein the elastic component (12) is capable of supporting the upper support plate (11) in an oblique direction and a vertical direction; and The connecting rod assembly (13) can be connected to two adjacent support plates (11); the connecting rod assembly (13) is movably connected to the support plates (11); and the connecting rod assembly (13) can buffer the relative movement between the two adjacent support plates (11).

2. The bionic vibration reduction and isolation device according to claim 1 is characterized in that: The elastic component (12) comprises a plurality of oblique elastic supports (121) and at least one vertical elastic support (122); one oblique elastic support (121) is provided between each of two adjacent support plates (11); the oblique elastic support (121) can perform oblique buffering between the corresponding support plates (11); the two ends of the vertical elastic support (122) are respectively fixedly connected to the upper and lower support plates (11) and are used for vertical buffering; and the vertical elastic support (122) runs through the middle support plate (11).

3. The bionic vibration reduction and isolation device according to claim 2 is characterized in that: The oblique elastic support (121) comprises a plurality of oblique springs (123), both ends of the oblique springs (123) being rotatably connected to the corresponding support plate (11); the plurality of oblique springs (123) are symmetrically arranged with respect to the central vertical section of the support plate (11).

4. The bionic vibration reduction and isolation device according to claim 2 is characterized in that: The vertical elastic support (122) is provided as one and is vertically arranged at the center of the plurality of support plates (11).

5. The bionic vibration reduction and isolation device according to claim 3 is characterized in that: The oblique springs (123) on both sides of the middle support plate (11) are supported and arranged symmetrically with respect to the central horizontal section of the middle support plate (11).

6. The bionic vibration reduction and isolation device according to claim 1 is characterized in that: The connecting rod assembly (13) comprises a support rod (131) obliquely arranged between two adjacent support plates (11); one end of the support rod (131) is rotatably connected to one of the support plates (11), and the other end is slidably connected to the adjacent support plate (11); when the two adjacent support plates (11) move relatively, the support rod (131) can rotate relative to one of the support plates (11) and slide relative to the other support plate (11).

7. The bionic vibration reduction and isolation device according to claim 6, characterized in that: The support rods (131) on both sides of the middle support plate (11) are symmetrically arranged with respect to a central horizontal cross section of the middle support plate (11).

8. The bionic vibration reduction and isolation device according to claim 6, characterized in that: The plurality of support rods (131) between two adjacent support plates (11) are symmetrically arranged with respect to a central vertical section of the support plate (11).

9. The bionic vibration reduction and isolation device according to claim 1, characterized in that: A plurality of guide rods (111) are vertically slidably penetrated between the plurality of support plates (11) arranged vertically side by side, and the lower end of each guide rod (111) is fixedly connected to the support plate (11) at the lower layer.

10. The bionic vibration reduction and isolation device according to claim 1, characterized in that: The support plate (11) and the connecting rod assembly (13) are made of resin, nylon or acrylic.

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