A force-guided vibration reduction structure

Abstract

This invention discloses a force-guided vibration damping structure, which solves the problems of poor force-guiding performance, low assembly precision, and insufficient vibration damping efficiency in existing vibration damping structures. The force-guided vibration damping structure includes an upper plate, a lower plate, and a force-guiding elastic unit connecting the upper and lower plates. The two ends of the force-guiding elastic unit are fixedly connected to the upper and lower plates, respectively. Both the upper and lower plates are flat plates arranged parallel to each other. The axis of the force-guiding elastic unit has an angle of inclination with respect to the z-direction. The force-guided vibration damping structure proposed in this invention can accurately guide and efficiently dampen z-direction loads, while reducing assembly errors, and is suitable for z-direction vibration damping requirements in various scenarios such as precision equipment and aerospace.

Description

Technical Field

[0001] This invention relates to the field of vibration reduction and noise reduction technology, specifically to a force-guided vibration reduction structure. Background Technology

[0002] In fields such as precision equipment, electronic devices, and aerospace, vibration interference is a key factor affecting the operational accuracy, stability, and service life of equipment, especially vibration in the z-axis (vertical direction), which can easily lead to component wear, signal distortion, structural fatigue, and even failure. Existing vibration damping structures mostly use traditional elastic elements such as springs and rubber pads. These structures have significant drawbacks: firstly, the elastic elements and mounting plates are often assembled separately, resulting in assembly gaps that can easily generate additional vibration and noise during vibration, and assembly precision is difficult to guarantee, affecting the vibration damping effect; secondly, traditional elastic elements have poor force guiding performance, failing to accurately guide the z-axis vibration load in a preset direction, leading to low vibration damping efficiency, and the stiffness and load-bearing capacity are difficult to adjust flexibly according to actual needs, resulting in poor adaptability. Furthermore, the elastic units in existing vibration damping structures are mostly of a single structural form, either with poor vibration damping effect or insufficient load-bearing capacity, making it difficult to balance vibration damping performance and load-bearing requirements.

[0003] To address the aforementioned issues, there is an urgent need for a z-direction force-guided vibration reduction structure with a reasonable structure, good vibration reduction effect, and adjustable load-bearing capacity to overcome the shortcomings of existing technologies. Summary of the Invention

[0004] To overcome the shortcomings of existing vibration reduction structures, such as low assembly precision, poor force guidance performance, and insufficient vibration reduction efficiency, this invention provides a force-guided vibration reduction structure that achieves efficient vibration reduction in the z-direction while taking into account load-bearing capacity and structural stability, so as to adapt to the usage requirements of different scenarios.

[0005] To achieve the above objectives, the present invention provides a force-guided vibration reduction structure, the specific technical solution of which is as follows: It includes an upper plate and a lower plate, and a force-guiding elastic unit is provided between the upper plate and the lower plate; the two ends of the force-guiding elastic unit are fixedly connected to the upper plate and the lower plate respectively; The upper and lower plates are both arranged in parallel. The axis of the force-guided elastic unit is tilted at an angle to the z-direction. .

[0006] Furthermore, the force-guided elastic unit is a spatial spiral structure or a cosine waveform structure.

[0007] Furthermore, when the number of the force-guided elastic unit is one, its axis is located in the same plane as the axis of symmetry of the upper plate.

[0008] Furthermore, when there are multiple force-guided elastic units, the axes of the multiple force-guided elastic units are respectively located in the same plane with each axis of symmetry of the upper plate, or the multiple force-guided elastic units are arranged in an array along the transverse direction, or the multiple force-guided elastic units are arranged symmetrically and uniformly.

[0009] Furthermore, the two ends of the force-guided elastic unit are integrally formed and connected to the bottom surface of the upper plate and the upper surface of the lower plate, and the connection is provided with an arc-shaped transition rounded corner.

[0010] Furthermore, when the force-guided elastic unit is a spatial spiral structure, the spatial spiral structure is one or more combinations of a constant diameter spiral, a variable diameter spiral, a constant pitch spiral, or a variable pitch spiral; the spiral direction is clockwise or counterclockwise.

[0011] Furthermore, the cross-section of the spring coil in the spatial helical structure is circular, rectangular, trapezoidal, triangular, or irregular; the tilt angle between the axis of the spatial helical structure and the z-direction... The value range is 10°-80°.

[0012] Furthermore, when the spatial helical structure is a variable diameter helical, the helical diameter increases or decreases linearly from the top to the bottom; the pitch of the variable pitch helical can increase or decrease uniformly or change in segments from the top to the bottom.

[0013] Furthermore, the cross-section of the spring coil in the cosine waveform structure is circular, rectangular, trapezoidal, triangular, or irregularly shaped; the tilt angle between the central axis of the cosine waveform structure and the z-direction... The value range is 10°-80°.

[0014] Furthermore, the structural types of the plurality of force-guided elastic units may be the same or different.

[0015] Compared with the prior art, the z-direction force-guided vibration reduction structure of the present invention has at least the following beneficial effects: 1. This invention adopts an integrated design of the upper plate, lower plate and force-guided elastic unit, with no assembly gaps, which effectively avoids the additional vibration and noise caused by separate assembly, improves the assembly accuracy and vibration reduction effect, and enhances the overall stability and service life of the structure.

[0016] 2. The force-guided elastic unit adopts an inclined spatial spiral structure and cosine waveform structure. Its axis is inclined at a preset angle with the z-direction, which can accurately guide the z-direction vibration load to the preset direction, greatly improve the z-direction vibration reduction efficiency, and solve the problem of insufficient vibration reduction of traditional elastic elements.

[0017] 3. The number, structural type, cross-sectional size, and tilt angle of the force-guided elastic elements can all be flexibly adjusted. The stiffness and load-bearing capacity can be customized according to different vibration load levels and application scenarios, making it highly adaptable and widely applicable.

[0018] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front view of the force-guided vibration reduction structure in Embodiment 1 of the present invention; Figure 2 for Figure 1 A perspective view of a force-guided vibration reduction structure; Figure 3 This is a diagram showing the force proportion in the impact direction of the force-guided vibration reduction structure in Embodiment 1 of the present invention; Figure 4 This is a front view of the force-guided vibration reduction structure in Embodiment 2 of the present invention; Figure 5 for Figure 4 A perspective view of a force-guided vibration reduction structure; Figure 6 This is a diagram showing the force proportion in the impact direction of the force-guided vibration reduction structure in Embodiment 2 of the present invention; Figure 7 This is a force-guided elastic element arrangement diagram proposed in this invention; Figure 8 This is another arrangement diagram of the force-guided elastic unit proposed in this invention; Figure 9 This is another arrangement diagram of the force-guided elastic unit proposed in this invention.

[0021] The attached figures are labeled as follows: Upper plate 1, lower plate 2, force-guided elastic unit 3. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention 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 the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0023] This invention provides a force-guided vibration damping structure, including an upper plate 1 and a lower plate 2, with a force-guided elastic unit 3 disposed between the upper plate 1 and the lower plate 2. Both ends of the force-guided elastic unit 3 are fixedly connected to the upper plate 1 and the lower plate 2, respectively, and the upper plate 1 and the lower plate 2 are arranged in parallel. The axis of the force-guided elastic unit 3 has an angle of inclination with respect to the z-direction. .

[0024] In a preferred embodiment of the present invention, the force-guided elastic unit 3 is a spatial spiral structure or a cosine waveform structure.

[0025] As a preferred embodiment of the present invention, see [link to previous document]. Figure 1 and Figure 4 When the number of force-guided elastic units 3 is one, the axis of the starting point and the axis of symmetry of the upper plate 1 are located in the same plane.

[0026] In a preferred embodiment of the present invention, when there are multiple force-guided elastic units 3, the axes of the multiple force-guided elastic units 3 are respectively located in the same plane as each axis of symmetry of the upper plate 1 (see...). Figure 7 ), or multiple force-guided elastic units 3 arranged in an array along the transverse direction (see Figure 8 Alternatively, multiple force-guided elastic elements 3 may be arranged symmetrically and uniformly (see [reference]). Figure 9 ).

[0027] As a preferred embodiment of the present invention, the structural types of the plurality of force-guided elastic units 3 may be the same or different. For example, the plurality of force-guided elastic units may all be spatial spiral structures or all be cosine waveform structures, or the plurality of force-guided elastic units may be arranged in combination of spatial spiral structures and cosine waveform structures.

[0028] In one embodiment of the present invention, both the upper and lower plates are square flat plate structures, arranged in parallel. The upper plate is a square plate with a side length of 10-60mm and a thickness of 1-5mm. The force-guiding elastic unit is an inclined spatial spiral structure or a cosine wave structure. The force-guided elastic unit is integrally formed and connected to the bottom surface of the upper plate and the upper surface of the lower plate at both ends, and the connection is provided with an arc transition fillet with a radius of 0.1-0.5mm.

[0029] Specifically, when the force-guided elastic unit is a spatial spiral structure, the spatial spiral structure is one or more combinations of a constant diameter spiral, a variable diameter spiral, a constant pitch spiral, or a variable pitch spiral; the number of turns of the spatial spiral structure is 1-10 turns, preferably 2-6 turns, the spiral direction is clockwise or counterclockwise, and the distance between two adjacent spiral turns is 1-5mm.

[0030] Specifically, the cross-section of the spring coil in the spatial spiral structure is circular, rectangular, triangular, trapezoidal, or irregularly shaped; when the cross-section is circular, the wire diameter is 0.1-4 mm, preferably 0.1-1 mm; when the cross-section is rectangular, the length is 0.1-4 mm and the width is 0.1-4 mm; the total length of the spiral structure is 5-54 mm, preferably 6-34 mm. Specifically, the tilt angle α between the central axis of the spatial spiral structure and the z-direction ranges from 10° to 80°, preferably 45° to 65°.

[0031] Specifically, when the spatial spiral structure is a variable diameter spiral, the spiral diameter increases or decreases linearly from the top to the bottom, with a diameter variation of 0.1-1.5 mm, exhibiting a smooth transition without obvious steps; the pitch variation range of the variable pitch spiral is 1-8 mm, and the pitch can increase, decrease, or vary in segments from the top to the bottom.

[0032] Specifically, when the force-guided elastic unit is a cosine waveform structure, the waveform equation of the cosine waveform structure satisfies: Where A is the waveform amplitude. Angular frequency, For the initial phase, the value of A ranges from 0.1 to 5 mm. The value range is 1-10 rad / s. The value range is 0-6.28 rad. The cross-section of the spring coil of the cosine waveform structure is circular, rectangular, trapezoidal, triangular, or irregular, and the cross-sectional dimensions are consistent with those of the spatial spiral structure; the total length of the cosine waveform structure is 5-40 mm, preferably 5-20 mm. The tilt angle α between the central axis of the cosine waveform structure and the z-direction ranges from 10° to 80°, preferably 45° to 65°.

[0033] Example 1 This embodiment provides a z-axis force-guided vibration reduction structure; see [link / reference]. Figure 1 and Figure 2It includes an upper plate 1, a lower plate 2, and a force-guided elastic unit 3. Both the upper plate 1 and the lower plate 2 are flat plate structures. The upper plate 1 is a square plate with a side length of 10mm and a thickness of 1mm. The two are parallel, that is, their Z-direction projections completely coincide. The force-guided elastic unit 3 adopts a spatial spiral structure and there is one unit. Its axis is located in the same plane as the axis of symmetry of the upper plate 1 and the lower plate 2.

[0034] The spatial spiral structure is a constant-diameter, constant-pitch spiral, with 4 turns in a clockwise direction and a 2mm spacing between adjacent turns; the spring coil has a circular cross-section and a wire diameter of 0.2mm; the tilt angle between the central axis of the spatial spiral structure and the z-axis is... It is 62°.

[0035] The force-guided elastic unit 3 is integrally formed and connected to the bottom surface of the upper plate 1 and the upper surface of the lower plate 2 at both ends. The connection is provided with an arc transition fillet with a radius of 0.1mm.

[0036] Using formula The z-direction force guidance rate of this embodiment is calculated, wherein... The angle between the central axis of the spatial spiral structure and the z-axis (i.e., the value is 62° in this embodiment). The z-component force. , The forces are in the x and y directions. To obtain accurate force data, an ABAQUS simulation was used to apply a load in the z direction, and the forces were extracted from the simulation results. , , Force component data, and then the force proportion in the impact direction is calculated, see [link / reference] Figure 3 The results show that the z-direction force guidance efficiency of this embodiment can reach 80% within 48.5% of the compression stroke, and can reach a maximum of 99%. This result means that when subjected to z-direction loads, the structure can accurately guide more than 80% of the load to the x and y directions for about half of the compression stroke, effectively realizing the directional dispersion and dissipation of z-direction vibration energy, and significantly improving z-direction vibration reduction efficiency. Simulation results further corroborate the rationality and feasibility of the force guidance design of this structure.

[0037] Example 2 This embodiment provides a z-axis force-guided vibration reduction structure; see [link / reference]. Figure 4 and Figure 5 It includes an upper plate 1, a lower plate 2 and a force-guided elastic unit 3. Both the upper plate 1 and the lower plate 2 are flat plate structures. The upper plate 1 is a square plate with a side length of 10mm and a thickness of 1mm. The two are set in parallel. The force-guided elastic unit 3 adopts a cosine waveform structure and there is one unit. It is located on the same plane along the axis of symmetry of the upper plate 1 and the lower plate 2.

[0038] The waveform equation of the cosine waveform structure satisfies The cosine wave structure has a circular cross-section with a diameter of 0.2 mm; the tilt angle between the central axis of the cosine wave structure and the z-direction is... It is 65°.

[0039] The force-guided elastic unit 3 is integrally formed and connected to the bottom surface of the upper plate 1 and the upper surface of the lower plate 2 at both ends. The connection is provided with an arc transition fillet with a radius of 0.1mm.

[0040] Using formula The z-direction force guidance rate of this embodiment is calculated, wherein... The angle between the central axis of the spatial spiral structure and the z-axis (i.e., the value is 65° in this embodiment). The z-component force. , The forces are in the x and y directions. To obtain accurate force data, an ABAQUS simulation was used to apply a load in the z direction, and the forces were extracted from the simulation results. , , Force component data, and then the force proportion in the impact direction is calculated, see [link / reference] Figure 6 The results show that the z-direction force guidance rate of this embodiment can reach 20% within 79.3% of the compression stroke and 80% within 38% of the compression stroke. This means that when subjected to z-direction loads, the structure can accurately guide more than 20% of the load to the x and y directions for 79.3% of the compression stroke, effectively achieving wide-range directional dispersion and dissipation of z-direction vibration energy. Simulation results further corroborate the rationality and feasibility of the force guidance design of this structure.

[0041] In summary, this invention proposes a z-axis force-guided vibration reduction structure. By specifically designing the force-guided elastic unit (spatial spiral structure, cosine waveform structure, etc.), it achieves precise guidance and efficient vibration reduction of z-axis vibration during equipment operation. At the same time, the integrated structural design enables integrated manufacturing of the vibration reduction structure, effectively solving the problems of poor force guidance performance, low assembly accuracy, and insufficient vibration reduction efficiency in the original z-axis vibration reduction structure.

[0042] It will be readily understood by those skilled in the art that, without conflict, the aforementioned advantageous technical features can be freely combined and superimposed.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A force-guided vibration reduction structure, characterized in that: It includes an upper plate (1) and a lower plate (2), and a force-guiding elastic unit (3) is provided between the upper plate (1) and the lower plate (2); the two ends of the force-guiding elastic unit (3) are fixedly connected to the upper plate (1) and the lower plate (2) respectively; The upper plate (1) and the lower plate (2) are arranged in parallel; The axis of the force-guided elastic unit (3) is tilted at an angle to the z-direction. .

2. The force-guided vibration reduction structure according to claim 1, characterized in that: The force-guided elastic unit (3) is a spatial spiral structure or a cosine waveform structure.

3. The force-guided vibration reduction structure according to claim 1, characterized in that: When the number of the force-guided elastic unit (3) is one, its axis is located in the same plane as the axis of symmetry of the upper plate (1).

4. The force-guided vibration reduction structure according to claim 1, characterized in that: When there are multiple force-guided elastic units (3), the axes of the multiple force-guided elastic units (3) are respectively located on the same plane as each axis of symmetry of the upper plate (1), or the multiple force-guided elastic units (3) are arranged in an array along the transverse direction, or the multiple force-guided elastic units (3) are arranged symmetrically and uniformly.

5. The force-guided vibration reduction structure according to claim 1, characterized in that: The force-guided elastic unit (3) is integrally formed and connected to the bottom surface of the upper plate (1) and the upper surface of the lower plate (2) at both ends, with an arc-shaped transition rounded corner at the connection.

6. The force-guided vibration reduction structure according to claim 2, characterized in that: When the force-guided elastic unit (3) is a spatial spiral structure, the spatial spiral structure includes an equal diameter spiral, a variable diameter spiral, an equal pitch spiral, or a variable pitch spiral; the spiral direction is clockwise or counterclockwise.

7. The force-guided vibration reduction structure according to claim 2, characterized in that: The cross-section of the spring coil in the spatial helical structure is circular, rectangular, trapezoidal, triangular, or irregular; the tilt angle between the axis of the spatial helical structure and the z-direction... The value range is 10°-80°.

8. The force-guided vibration reduction structure according to claim 6, characterized in that: When the spatial spiral structure is a variable diameter spiral, the spiral diameter increases or decreases linearly from the top end to the bottom end. When the spatial spiral structure is a variable pitch spiral, the pitch of the variable pitch spiral can increase uniformly, decrease uniformly, or change in segments from the top to the bottom.

9. The force-guided vibration reduction structure according to claim 2, characterized in that: The spring coil cross-section of the cosine waveform structure is circular, rectangular, trapezoidal, triangular, or irregularly shaped; the tilt angle between the central axis of the cosine waveform structure and the z-direction... The value range is 10°-80°.

10. The force-guided vibration reduction structure according to claim 1, characterized in that: The structural types of the multiple force-guided elastic units (3) may be the same or different.

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