CN217301398U - Multidimensional vibration reduction platform based on magnetorheological damper and quasi-zero stiffness component - Google Patents
Multidimensional vibration reduction platform based on magnetorheological damper and quasi-zero stiffness component Download PDFInfo
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- CN217301398U CN217301398U CN202220857658.4U CN202220857658U CN217301398U CN 217301398 U CN217301398 U CN 217301398U CN 202220857658 U CN202220857658 U CN 202220857658U CN 217301398 U CN217301398 U CN 217301398U
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- 230000009467 reduction Effects 0.000 title claims description 14
- 230000003068 static effect Effects 0.000 claims abstract description 39
- 238000013016 damping Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 19
- 229910000639 Spring steel Inorganic materials 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008451 emotion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
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Abstract
The utility model discloses a multidimensional vibration damping platform based on a magneto-rheological damper and a quasi-zero stiffness component, which comprises a static platform, a movable platform, a quasi-zero stiffness component and a magneto-rheological damper; the movable platform is connected with a Y-shaped hinge of the movable platform through a spherical hinge; the static platform is connected with a Y-shaped hinge of the static platform through a spherical hinge; the first support leg of the Y-shaped hinge of the movable platform is connected with one end of the quasi-zero stiffness component; the second support leg of the Y-shaped hinge of the movable platform is connected with one end of the magnetorheological damper; the first support leg of the Y-shaped hinge of the static platform is connected with the other end of the quasi-zero stiffness component; and the second supporting leg of the Y-shaped hinge of the static platform is connected with the other end of the magnetorheological damper. The utility model discloses it is small, can realize that the initiative is quick, effectual damping effect, and this multidimensional damping platform integrated level is high.
Description
Technical Field
The utility model relates to a low frequency damping field especially relates to a through magnetic current becomes attenuator and zero accurate rigidity subassembly's multidimension damping platform.
Background
The existing spring vibration reduction can not meet the requirements of high-precision assemblies such as induction and artificial intelligent equipment due to a series of problems of low response speed, insufficient resilience, constant vibration reduction acting force, long vibration reduction period, short vibration reduction service life and the like. The magneto-rheological damper and quasi-zero stiffness component-based multi-dimensional vibration reduction platform has the advantages of real-time adjustment, quick response, convenient control and excellent vibration reduction, and strong continuous vibration can cause the reduction of the overall performance and the overall level of an electromechanical system, a structure or equipment with poor dynamic characteristics; vibration is again the main source of noise. In addition, when the vibration exceeds a certain limit, the harmony relationship between people and the environment and between people and machines can be destroyed, the emotion of people is disturbed, the health of people is damaged, and the working efficiency is reduced. Therefore, measures must be taken for control.
Airborne precision instruments carried by automobiles, ships, submarines, airplanes and the like need to work in a very stable and quiet vibration isolation environment. In order to avoid the influence of external high-amplitude, wide-frequency and multi-dimensional random disturbance and meet increasingly severe requirements on wide-frequency vibration isolation and attitude maintenance, a new method and a new technology which are more effective and different from the traditional vibration control mode are required to be adopted.
SUMMERY OF THE UTILITY MODEL
Based on the above problems, the present invention provides a multi-dimensional vibration damping platform based on a magneto-rheological damper and a quasi-zero stiffness component.
The adopted technical scheme is as follows: a multi-dimensional vibration reduction platform based on a magneto-rheological damper and a quasi-zero stiffness component comprises a static platform, a movable platform, a quasi-zero stiffness component and a magneto-rheological damper; the movable platform is connected with a Y-shaped hinge of the movable platform through a spherical hinge; the static platform is connected with the Y-shaped hinge of the static platform through a spherical hinge.
The movable platform Y-shaped hinge comprises a first support leg of the movable platform Y-shaped hinge and a second support leg of the movable platform Y-shaped hinge; the first support leg of the Y-shaped hinge of the movable platform is connected with one end of the quasi-zero stiffness component; the second support leg of the Y-shaped hinge of the movable platform is connected with one end of the magnetorheological damper;
the static platform Y-shaped hinge comprises a static platform Y-shaped hinge first support leg and a static platform Y-shaped hinge second support leg; a first support leg of the Y-shaped hinge of the static platform is connected with the other end of the quasi-zero stiffness component; and the second supporting leg of the Y-shaped hinge of the static platform is connected with the other end of the magnetorheological damper.
The quasi-zero stiffness component comprises a transmission rod, a base, a shell and a fixed block; the base is fixed on a first support leg of the Y-shaped hinge of the static platform; a spring is arranged in the base; a sliding block is fixed on the inner wall of the upper part of the shell; the outer side of the fixed block is provided with a chute; the sliding block is matched with the sliding chute, and the fixed block is arranged at the upper part of the shell; the transmission rod penetrates through the shell, one end of the transmission rod is connected with a first support leg of the Y-shaped hinge of the movable platform, and the other end of the transmission rod is fixed with a spring in the base;
the middle of the transmission rod is provided with a sphere; spring steel sheets are placed on the inner walls of the two sides of the shell; the spring steel sheet is arc-shaped, and the arc top is contacted with the sphere.
Further, the spherical hinge comprises a single-rod-shaped spherical rod joint bearing ring and a single-rod-shaped spherical rod joint bearing screw rod; the movable platform and the static platform are respectively fixed with a single-rod-shaped ball head rod joint bearing screw rod in the spherical hinge; the first support leg of the Y-shaped hinge of the movable platform and the first support leg of the Y-shaped hinge of the static platform are respectively fixed with the single-rod-shaped ball-head-rod joint bearing ring.
Furthermore, the slide block is T-shaped.
Furthermore, one end of the spring steel sheet is contacted with the base; the other end is not contacted with the fixed block.
Furthermore, the magneto-rheological damper is a piston type magneto-rheological damper; a transmission rod in the magneto-rheological damper is connected with a second support leg of the Y-shaped hinge of the movable platform; the bottom of the magneto-rheological damper is connected with the second supporting leg of the Y-shaped hinge of the static platform.
The utility model discloses an effect: the utility model discloses install in required place, the vibration damping platform not only need solve the vibration that the axial produced, need eliminate the vibration of horizontal direction simultaneously, during operation, the thing that is dampened can produce the acceleration of horizontal direction, axial gravity, move the platform and receive the vibration, and the axial gravity that produces this vibration is transmitted to quasi-zero rigidity component and piston magneto rheological damper respectively through moving platform Y shape hinge; the quasi-zero stiffness element is vertically installed, receives axial movement, and is subjected to the combined action of the reaction force generated by the spring and the horizontal acting force provided by the spring steel sheet through the transmission rod, so that the axial vibration reduction is realized; meanwhile, as the Y-shaped hinge of the movable platform is fixed, part of the force generated by the vibration of the Y-shaped hinge of the movable platform can be transmitted to the piston rod of the magnetorheological damper through the other support leg of the Y-shaped hinge of the movable platform, the piston rod in the magnetorheological damper is acted by force, and the piston moves along the direction of the magnetorheological damper (the direction of resultant force) due to the characteristics and the action of the magnetorheological fluid; after the piston moves to a certain position, reaction force can be generated due to the characteristics of the magnetorheological fluid, the reaction force is disassembled according to the mechanical vector triangle, horizontal component force and axial component force can be obtained, and vibration can be slowly eliminated in the process of repeated low-frequency movement. Meanwhile, multi-dimensional axial vibration reduction is realized through rotation of the spherical hinge.
The magnetorheological fluid is in a Newtonian fluid state under the action of a magnetic field; after the power is switched on, under the action of a magnetic field in the shell (electromagnetic), the viscosity of the magnetorheological fluid is increased, the damping on the piston rod is increased, and the aim of damping controllability can be achieved by changing different current values to achieve the aim of vibration reduction.
The utility model discloses can realize that the initiative is quick, effectual damping effect, and this multidimension damping platform integrated level is high, small.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of the quasi-zero stiffness assembly of the present invention;
fig. 3 is a schematic structural diagram of the middle ball hinge of the present invention.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1, a multi-dimensional vibration damping platform based on a magnetorheological damper and a quasi-zero stiffness component comprises a static platform 2, a movable platform 1, a quasi-zero stiffness component 3 and a magnetorheological damper 4; the magneto-rheological damper 4 is a piston type magneto-rheological damper; the movable platform 1 is connected with a movable platform Y-shaped hinge 6 through a spherical hinge 5; the static platform 2 is connected with a static platform Y-shaped hinge 7 through a spherical hinge 5.
The movable platform Y-shaped hinge 6 comprises a movable platform Y-shaped hinge first support leg 61 and a movable platform Y-shaped hinge second support leg 62; the first support leg 61 of the Y-shaped hinge of the movable platform is connected with one end of the transmission rod 31 in the quasi-zero stiffness component 3; the second leg 62 of the Y-shaped hinge of the movable platform is connected to one end of the piston rod 41 in the magnetorheological damper 4.
The static platform Y-shaped hinge 7 comprises a static platform Y-shaped hinge first support leg 71 and a static platform Y-shaped hinge second support leg 72; the first support leg 71 of the Y-shaped hinge of the static platform is connected with the base 32 of the quasi-zero stiffness component 3; the second leg 72 of the Y-shaped hinge of the static platform is connected to the bottom of the magnetorheological damper.
The quasi-zero stiffness component 3 comprises a transmission rod 31, a base 32, a shell 33 and a fixed block 34; the base 32 is fixed on the first support leg 71 of the Y-shaped hinge of the static platform; a spring is arranged in the base 32; a slider 331 is fixed to the upper inner wall of the housing 33; the slide block is T-shaped.
The outer side of the fixed block 34 is provided with a chute 341; the slide block 331 is matched with the slide groove 341, and the fixed block 34 is arranged at the upper part of the shell 33; the transmission rod 31 penetrates through the shell 33, one end of the transmission rod 31 is connected with a first support leg 61 of the Y-shaped hinge of the movable platform, and the other end of the transmission rod 31 is fixed with a spring in the base 32. The base 36 has base sliding grooves 361 on both sides thereof for engaging with the protrusions on the inner wall of the housing.
The middle of the transmission rod 31 is provided with a ball 32; spring steel sheets 35 are arranged on the inner walls of the two sides of the shell 33; the spring steel sheet 35 is arc-shaped, and the arc top contacts with the ball 32. One end of the spring steel sheet 35 is contacted with the base 36; the other end is not in contact with the fixed block 34.
The spherical hinge 5 comprises a single-rod-shaped spherical rod joint bearing ring 51 and a single-rod-shaped spherical rod joint bearing screw 52; the movable platform 1 and the static platform 2 are respectively fixed with a single-rod-shaped ball head rod joint bearing screw 52 in the spherical hinge 5; the first support leg 11 of the movable platform Y-shaped hinge and the first support leg 21 of the fixed platform Y-shaped hinge are respectively fixed with a single-rod-shaped ball-head-rod joint bearing ring 51.
Claims (5)
1. A multi-dimensional vibration reduction platform based on a magneto-rheological damper and a quasi-zero stiffness component is characterized in that: the system comprises a static platform, a movable platform, a quasi-zero stiffness component and a magneto-rheological damper; the movable platform is connected with a Y-shaped hinge of the movable platform through a spherical hinge; the static platform is connected with a Y-shaped hinge of the static platform through a spherical hinge;
the movable platform Y-shaped hinge comprises a first support leg of the movable platform Y-shaped hinge and a second support leg of the movable platform Y-shaped hinge; the first support leg of the Y-shaped hinge of the movable platform is connected with one end of the quasi-zero stiffness component; the second support leg of the Y-shaped hinge of the movable platform is connected with one end of the magnetorheological damper;
the static platform Y-shaped hinge comprises a static platform Y-shaped hinge first support leg and a static platform Y-shaped hinge second support leg; a first support leg of the Y-shaped hinge of the static platform is connected with the other end of the quasi-zero stiffness component; the second supporting leg of the Y-shaped hinge of the static platform is connected with the other end of the magnetorheological damper;
the quasi-zero stiffness component comprises a transmission rod, a base, a shell and a fixed block; the base is fixed on the first support leg of the Y-shaped hinge of the static platform; a spring is arranged in the base; a sliding block is fixed on the inner wall of the upper part of the shell; a sliding groove is formed in the outer side of the fixed block; the sliding block is matched with the sliding groove, and the fixed block is arranged at the upper part of the shell; the transmission rod penetrates through the shell, one end of the transmission rod is connected with the first support leg of the Y-shaped hinge of the movable platform, and the other end of the transmission rod is fixed with the spring in the base;
the middle of the transmission rod is provided with a sphere; spring steel sheets are placed on the inner walls of the two sides of the shell; the spring steel sheet is arc-shaped, and the arc top is contacted with the sphere.
2. The multi-dimensional vibration attenuation platform based on the magnetorheological damper and the quasi-zero stiffness component as claimed in claim 1, characterized in that the spherical hinge comprises a single-rod-shaped spherical-head-rod knuckle bearing ring and a single-rod-shaped spherical-head-rod knuckle bearing screw rod; the movable platform and the static platform are respectively fixed with a single-rod-shaped ball head rod joint bearing screw rod in the spherical hinge; the first support leg of the Y-shaped hinge of the movable platform and the first support leg of the Y-shaped hinge of the static platform are respectively fixed with the single-rod-shaped ball-head rod joint bearing ring.
3. The multi-dimensional vibration damping platform based on the magnetorheological damper and the quasi-zero stiffness component according to claim 1, wherein the sliding block is T-shaped.
4. The multi-dimensional vibration damping platform based on the magnetorheological damper and the quasi-zero stiffness component as claimed in claim 1, wherein one end of the spring steel sheet is in contact with the base; the other end of the fixing block is not contacted with the fixing block.
5. The multi-dimensional vibration damping platform based on the magnetorheological damper and the quasi-zero stiffness component according to claim 1, wherein the magnetorheological damper is a piston type magnetorheological damper; a transmission rod in the magneto-rheological damper is connected with a second support leg of the Y-shaped hinge of the movable platform; the bottom of the magneto-rheological damper is connected with the second supporting leg of the Y-shaped hinge of the static platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220857658.4U CN217301398U (en) | 2022-04-14 | 2022-04-14 | Multidimensional vibration reduction platform based on magnetorheological damper and quasi-zero stiffness component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220857658.4U CN217301398U (en) | 2022-04-14 | 2022-04-14 | Multidimensional vibration reduction platform based on magnetorheological damper and quasi-zero stiffness component |
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| Publication Number | Publication Date |
|---|---|
| CN217301398U true CN217301398U (en) | 2022-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220857658.4U Expired - Fee Related CN217301398U (en) | 2022-04-14 | 2022-04-14 | Multidimensional vibration reduction platform based on magnetorheological damper and quasi-zero stiffness component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217301398U (en) |
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2022
- 2022-04-14 CN CN202220857658.4U patent/CN217301398U/en not_active Expired - Fee Related
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