CN113983109B - Composite shock absorber based on metal rubber and magnetorheological effect and working method thereof - Google Patents
Composite shock absorber based on metal rubber and magnetorheological effect and working method thereof Download PDFInfo
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- CN113983109B CN113983109B CN202111369989.XA CN202111369989A CN113983109B CN 113983109 B CN113983109 B CN 113983109B CN 202111369989 A CN202111369989 A CN 202111369989A CN 113983109 B CN113983109 B CN 113983109B
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- 229920001967 Metal rubber Polymers 0.000 title claims abstract description 59
- 230000035939 shock Effects 0.000 title claims abstract description 40
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 29
- 230000000694 effects Effects 0.000 title claims abstract description 29
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000013016 damping Methods 0.000 claims abstract description 52
- 239000012530 fluid Substances 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000010008 shearing Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 8
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000002411 adverse Effects 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/362—Combination of sealing and guide arrangements for piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/369—Sealings for elements other than pistons or piston rods, e.g. valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/025—Elastomers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/04—Fluids
- F16F2224/045—Fluids magnetorheological
Abstract
The invention relates to a composite shock absorber based on metal rubber and magneto-rheological effect and a working method thereof, comprising a shock absorption cylinder body and a coil mechanism positioned at the periphery of the shock absorption cylinder body; the damping cylinder body is internally provided with a pressure plate which divides the internal space of the damping cylinder body into an upper cavity and a lower cavity which are connected with each other, the upper end of the pressure plate is connected with a piston rod which penetrates out from the upper end of the damping cylinder body, the damping cylinder body is internally filled with magnetorheological fluid, the upper cavity above the pressure plate is filled with an upper metal rubber element, and the lower cavity below the pressure plate is filled with a lower metal rubber element. The composite vibration damper based on the metal rubber and the magnetorheological effect has the advantages of simple and reliable structure, high controllability and high reliability, and adopts a solid-liquid composite vibration damping mode with the metal rubber as a main component and the magnetorheological effect as an auxiliary control component, so that the rigidity of a metal rubber damping original piece is enhanced, and the vibration damping performance of the whole device is improved.
Description
Technical Field
The invention relates to the technical field of vibration reduction and buffering, in particular to a composite vibration damper based on metal rubber and magneto-rheological effect and a working method thereof.
Background
Since harmful vibration can have harmful effects on mechanical operation in many cases, a design for reducing mechanical vibration and cutting off transmission of vibration becomes a key ring for influencing the operation reliability of the machinery, and a vibration damper has become an indispensable important device on civil machinery and even military equipment. In particular, in the field of vibration reduction, requirements on intelligence, high efficiency, reliability and the like are higher and higher in recent years, and the development of a controllable, high-efficiency and reliable vibration absorber suitable for various mechanical equipment with severe working conditions becomes very valuable.
The existing active control shock absorber is mature, but most of the shock absorbers need a working environment after precise maintenance, and have high cost, and the shock absorbers with high reliability used on the traditional heavy equipment are lack of precision, have low controllability and lower upper limit of the shock absorbing effect.
Disclosure of Invention
In view of the above, the invention aims to provide a composite shock absorber based on metal rubber and magneto-rheological effect and a working method thereof, wherein the composite shock absorber has high controllability, high reliability and good shock absorption performance.
The invention is realized by adopting the following scheme: a composite shock absorber based on metal rubber and magneto-rheological effect comprises a shock absorption cylinder body and a coil mechanism positioned at the periphery of the shock absorption cylinder body; the damping cylinder body is internally provided with a pressure plate which divides the internal space of the damping cylinder body into an upper cavity and a lower cavity which are connected with each other, the upper end of the pressure plate is connected with a piston rod which penetrates out from the upper end of the damping cylinder body, the damping cylinder body is internally filled with magnetorheological fluid, the upper cavity above the pressure plate is filled with an upper metal rubber element, and the lower cavity below the pressure plate is filled with a lower metal rubber element.
Further, the coil mechanism comprises a coil frame located on the periphery of the damping cylinder body, the coil frame is composed of an annular base and a hexagonal frame body located on the upper side of the annular base, magnetic field core shafts perpendicular to the sides are fixedly connected to the inner sides of the hexagonal frame body, one inward end of each magnetic field core shaft is close to the outer side wall of the damping cylinder body, magnetic field coils are wound on the magnetic field core shafts, and the directions of N-S poles of magnetic fields generated by the magnetic field coils on the two adjacent magnetic field core shafts are opposite.
Further, the coil frame is formed by splicing two half frame bodies which are divided along one diagonal line of the hexagonal frame body; the section of the magnetic core shaft is square, the magnetic core shaft is made of silicon steel, a mounting plate is arranged at one outward end of the magnetic core shaft, and the mounting plate is fixedly connected to the hexagonal frame body through bolts.
Further, a fixed seat is arranged at the bottom of the damping cylinder body, and the diameter of the fixed seat is smaller than the diameter of an inner hole of the annular base; the shock attenuation cylinder body upper end is equipped with flange, flange has the end cover through bolted connection, offer the through-hole that supplies the piston rod to pass in the middle of the end cover, be equipped with first sealing washer in the through-hole, press from both sides between end cover and the flange and be equipped with the second sealing washer.
The working method of the composite shock absorber based on the metal rubber and the magneto-rheological effect comprises the steps that when an impact force or a tensile force is input from the outside, the upper end of a piston rod transmits the acting force to a bottom pressure plate part, so that the pressure plate reciprocates between an upper metal rubber element and a lower metal rubber element to generate displacement, at the moment, the volumes of an upper cavity and a lower cavity change due to the compressibility of the metal rubber, and magneto-rheological fluid has a tendency of flowing through a shearing gap; when the magnetic field coil is not electrified or no instruction signal is input, the damping force is completely generated by the metal rubber damping structure immersed in the magnetorheological fluid, when the magnetic field coil is activated according to an externally given electric signal to generate a magnetic field, the magnetorheological fluid flowing upwards or downwards in the shearing gap generates a rheological effect under the action of the magnetic field to generate a shearing damping force, and in addition, the magnetorheological fluid in the upper and lower metal rubber elements also generates a tendency of semi-solid transition due to the effect of the magnetic field, so that the rigidity and damping of the metal rubber elements are enhanced.
Compared with the prior art, the invention has the following beneficial effects: the composite vibration damper based on the metal rubber and the magneto-rheological effect has the advantages that the structure is simple and reliable, the metal rubber is adopted as a main material, the magneto-rheological effect is adopted as an auxiliary control solid-liquid composite vibration damping mode, the rigidity of a metal rubber damping original piece is enhanced, the vibration damping performance of the whole device is improved, and the composite vibration damper has the characteristics of high controllability and high reliability; the external magnetic field is adopted, the adverse phenomenon that the magnetorheological fluid performance is reduced due to heating of the coil in the operation process can be avoided, the working environment of the coil is visible, and the safety in the power-on operation process is improved.
The present invention will be further described in detail below with reference to specific embodiments and associated drawings for the purpose of making the objects, technical solutions and advantages of the present invention more apparent.
Drawings
FIG. 1 is a schematic view of the overall construction of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a shock absorbing cylinder in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of a half structure of a coil carrier according to an embodiment of the present invention;
the reference numerals in the figures illustrate: 1. a vibration damping cylinder; 2. a nut; 3. a nut washer; 4. an end cap; 5. a bolt gasket; 6. a bolt; 7. a piston rod; 8. a first seal ring; 9. a second seal ring; 10. a metal rubber element; 11. a lower metal rubber member; 12. an annular base; 13. a magnetic field mandrel; 14-pressing plates; 15-hexagonal frame.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
As shown in fig. 1-3, a composite shock absorber based on metal rubber and magneto-rheological effect comprises a shock absorption cylinder body 1 and a coil mechanism positioned at the periphery of the shock absorption cylinder body 1; a pressure plate 14 dividing the inner space of the shock absorption cylinder body 1 into an upper cavity and a lower cavity is arranged in the shock absorption cylinder body 1, the upper end of the pressure plate 14 is connected with a piston rod 7 penetrating out from the upper end of the shock absorption cylinder body 1, and the upper end of the piston rod is provided with a thread part so as to be connected with a vibration isolation part; the damping cylinder body 1 is internally filled with magnetorheological fluid to form a magnetorheological fluid environment, an upper cavity above the pressure plate 14 is filled with an upper metal rubber element 10, and a lower cavity below the pressure plate is filled with a lower metal rubber element 11. According to the invention, a solid-liquid composite shock absorber scheme with metal rubber as a main component and a magneto-rheological effect as auxiliary control is adopted, a working mode that a metal rubber damping element is soaked in a magneto-rheological fluid environment is adopted, under the action of a magnetic field and external pressure, magneto-rheological fluid can pass through a shearing gap through the combined action of the capillary effect and volume change to generate a shearing damping force, and when a metal rubber element is made of a material with higher magnetic conductivity, the magneto-rheological effect can also be generated between metal wires in the metal rubber element, so that the rigidity of the metal rubber damping element is enhanced, and the vibration damping performance of the whole device is improved; therefore, the damper can enable magnetorheological fluid to generate various action forms under the same magnetic field, improves the exertion degree of the performance of the magnetorheological fluid, can generate ideal damping performance, is intelligent and controllable, can gradually develop matching control programs adapting to the operation characteristics of different equipment in the follow-up actual test and production, and has wide practical application prospect; the external magnetic field is adopted, the adverse phenomenon that the magnetorheological fluid performance is reduced due to heating of the coil in the operation process can be avoided, the working environment of the coil is visible, and the safety in the power-on operation process is improved.
In this embodiment, the coil mechanism includes a coil frame located at the periphery of the shock absorbing cylinder, the coil frame is composed of an annular base 12 and a hexagonal frame body 15 located at the upper side of the annular base, and the annular base is provided with a mounting hole, so that the coil frame and the magnetic field coil are fixed, and the magnetic field coil after being mounted is located at an optimal action position. The inner sides of the hexagonal frame body 15 are fixedly connected with magnetic core shafts 13 perpendicular to the sides, one inward end of each magnetic core shaft 13 is close to the outer side wall of the damping cylinder body, magnetic field coils (not shown in the figure) are wound on the magnetic core shafts 13, and the directions of N-S poles of magnetic fields generated by the magnetic field coils on the two adjacent magnetic core shafts are opposite; therefore, each magnetic field forms a conducting magnetic circuit with the shortest path after being electrified, the magnetic field loss is reduced, the magnetic field of the axial winding is adopted to influence the magnetorheological fluid so as to generate a magnetorheological effect, higher magnetic induction intensity is generated in a shearing gap with less current quantity, and the magnetic circuit structure is reasonable.
In this embodiment, the coil frame is formed by splicing two half-frame bodies which are divided along one diagonal line of the hexagonal frame body; the section of the magnetic core shaft 13 is square, the magnetic core shaft 13 is made of silicon steel, the magnetic circuit loss is reduced by adopting the core shaft made of silicon steel and the shell, and the main action part of the whole magnetic circuit is designed in the stroke range of shearing caused by up-and-down movement of the piston, so that the magnetic field utilization rate is high. The magnetic field mandrel is provided with a mounting plate at one outward end, the mounting plate is fixedly connected to the hexagonal frame body through bolts, and each side of the hexagonal frame body is provided with a bolt hole for connecting the mounting plate; the rib plates are arranged between the annular base and the hexagonal frame body so as to strengthen the rigidity of the coil frame after the coil is installed, and the coil frame cannot excessively incline inwards to cause inter-component interference after the magnetic core shaft with the wound coil is installed.
In this embodiment, a fixing seat is provided at the bottom of the shock absorbing cylinder 1, and a mounting hole is also provided on the fixing seat, and a mount Kong Kongke of the fixing seat is used for connecting the vibration-isolated component or connecting with a fixing base; the diameter of the fixed seat is smaller than the diameter of the inner hole of the annular base; the shock attenuation cylinder body upper end is equipped with flange, flange has end cover 4 through bolted connection, set up the through-hole that supplies the piston rod to pass in the middle of the end cover 4, be equipped with first sealing washer 8 in the through-hole, press from both sides between end cover and the flange and be equipped with second sealing washer 9, the sealing washer adopts fluororubber sealing washer.
The invention has simple and reliable structure, uses a stable and reliable metal rubber damping structure to generate main damping force, uses the damping force generated by shearing and extrusion of electromagnetic control magnetorheological fluid as an additional part which is intelligently generated according to the requirement, so that the shock absorber has the characteristics of high controllability and strong reliability, and can still generate certain damping force by depending on an internal metal rubber damping element even if the shock absorber is in a special condition of signal interruption, so that the shock absorber is not in failure; and because of the strong interchangeability of the metal rubber elements, the metal rubber elements with different wire diameters, densities and performance attributes can be manufactured at any time according to actual needs to be replaced, so that the shock absorber has wide applicability.
The installation process of the composite shock absorber comprises the following steps: firstly, each independent magnetic core shaft 13 is uniformly wound with magnetic field coils, the winding direction needs to be paid attention to, so that N-S poles of magnetic fields generated by coils on two adjacent magnetic core shafts in a space are opposite, after the coils on each magnetic core shaft are correctly wound, the magnetic core shaft 13 and the coil frame 12 can be installed together through corresponding holes on an installation plate by using bolts and nuts, and two ends of a wire are smoothed out for standby.
After the external magnetic field is correctly installed, the installation work of the main body of the shock absorber can be firstly carried out, the lower metal rubber element 11 is firstly placed at the inner bottom of the cylinder of the shock absorber cylinder body 1, then the pressure plate with the piston rod is placed on the lower metal rubber element 11, then the upper metal rubber element 10 is sleeved into the shock absorber cylinder body 1 along the piston rod, after the inspection, magnetorheological fluid can be filled into the shock absorber cylinder, the working magnetorheological fluid environment is constructed, when the magnetorheological fluid just does not exceed the upper surface of the upper metal rubber element 10, the filling is stopped, at this time, the second sealing ring 9 is firstly correctly installed in the sealing ring groove reserved on the connecting flange, then the end cover 4 is taken, after the first sealing ring groove in the through hole of the end cover is correctly sleeved, the through hole of the end cover is sleeved into the piston rod, and after the correct installation, the nut 2, the nut gasket 3, the bolt gasket 5 and the bolt 6 can be used for correctly connecting and fixing the end cover 4 and the connecting flange.
After the vibration absorber main body is assembled, the vibration absorber main body can be connected with a vibration isolation part through a mounting hole of a fixed seat at the bottom of the vibration absorber cylinder body 1 and threads at the upper part of a piston rod 7, and then a coil mechanism assembled before is fixed outside the vibration absorber cylinder body through a mounting hole of a bottom annular base, the coil frame and the bottom surface of the vibration absorber cylinder body 1 are ensured to be in the same plane during installation, and the installation position can ensure that a magnetic field is in the most effective position with highest working efficiency during working; and then the lead is correctly connected to an external control device, so that the work can be started.
The working method of the composite shock absorber based on the metal rubber and the magneto-rheological effect comprises the steps that when an impact force or a tensile force is input from the outside, the upper end of a piston rod transmits the acting force to a bottom pressure plate part, so that the pressure plate reciprocates between an upper metal rubber element and a lower metal rubber element to generate displacement, at the moment, the volumes of an upper cavity and a lower cavity change due to the compressibility of the metal rubber, and magneto-rheological fluid has a tendency of flowing through a shearing gap; when the magnetic field coil is not electrified or no instruction signal is input, the damping force is completely generated by the metal rubber damping structure immersed in the magnetorheological fluid, when the magnetic field coil is activated according to an externally given electric signal to generate a magnetic field, the magnetorheological fluid flowing upwards or downwards in the shearing gap generates a rheological effect under the action of the magnetic field to generate a shearing damping force, and in addition, the magnetorheological fluid in the upper and lower metal rubber elements also generates a tendency of semi-solid transition due to the effect of the magnetic field, so that the rigidity and damping of the metal rubber elements are enhanced.
The effects are combined, so that the damping and rigidity of the damper can be controlled stably and efficiently by controlling the current through the outside.
Any of the above-described embodiments of the present invention disclosed herein, unless otherwise stated, if they disclose a numerical range, then the disclosed numerical range is the preferred numerical range, as will be appreciated by those of skill in the art: the preferred numerical ranges are merely those of the many possible numerical values where technical effects are more pronounced or representative. Since the numerical values are more and cannot be exhausted, only a part of the numerical values are disclosed to illustrate the technical scheme of the invention, and the numerical values listed above should not limit the protection scope of the invention.
If the invention discloses or relates to components or structures fixedly connected with each other, then unless otherwise stated, the fixed connection is understood as: detachably fixed connection (e.g. using bolts or screws) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).
In addition, terms used in any of the above-described aspects of the present disclosure to express positional relationship or shape have meanings including a state or shape similar to, similar to or approaching thereto unless otherwise stated.
Any part provided by the invention can be assembled by a plurality of independent components, or can be manufactured by an integral forming process.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (3)
1. A composite shock absorber based on metal rubber and magneto-rheological effect is characterized in that: the device comprises a damping cylinder body and a coil mechanism positioned at the periphery of the damping cylinder body; the damping cylinder body is internally provided with a pressure plate which divides the internal space of the damping cylinder body into an upper cavity and a lower cavity which are connected with each other, the upper end of the pressure plate is connected with a piston rod which penetrates out from the upper end of the damping cylinder body, the inside of the damping cylinder body is filled with magnetorheological fluid, the upper cavity above the pressure plate is filled with an upper metal rubber element, and the lower cavity below the pressure plate is filled with a lower metal rubber element; the coil mechanism comprises a coil frame positioned at the periphery of the damping cylinder body, the coil frame is composed of an annular base and a hexagonal frame body positioned at the upper side of the annular base, the inner sides of all sides of the hexagonal frame body are fixedly connected with magnetic field core shafts perpendicular to all sides, one inward end of each magnetic field core shaft is close to the outer side wall of the damping cylinder body, magnetic field coils are wound on the magnetic field core shafts, and the directions of N-S poles of magnetic fields generated by the magnetic field coils on the two adjacent magnetic field core shafts are opposite; the coil frame is formed by splicing two half-frame bodies which are separated along one diagonal line of the hexagonal frame body; the section of the magnetic core shaft is square, the magnetic core shaft is made of silicon steel, a mounting plate is arranged at one outward end of the magnetic core shaft, and the mounting plate is fixedly connected to the hexagonal frame body through bolts.
2. The composite vibration damper based on the metal rubber and the magnetorheological effect according to claim 1, wherein: the bottom of the damping cylinder body is provided with a fixed seat, and the diameter of the fixed seat is smaller than the diameter of an inner hole of the annular base; the shock attenuation cylinder body upper end is equipped with flange, flange has the end cover through bolted connection, offer the through-hole that supplies the piston rod to pass in the middle of the end cover, be equipped with first sealing washer in the through-hole, press from both sides between end cover and the flange and be equipped with the second sealing washer.
3. A method of operating a composite vibration damper based on metal rubber and magnetorheological effect as recited in claim 1, wherein: when an impact force or a tensile force is input from the outside, the upper end of the piston rod transmits the acting force to the bottom pressure plate part, so that the pressure plate reciprocates between the upper metal rubber element and the lower metal rubber element to generate displacement, at the moment, the volumes of the upper cavity and the lower cavity change due to the compressibility of the metal rubber, and magnetorheological fluid therein has a tendency of flowing through a shearing gap; when the magnetic field coil is not electrified or no instruction signal is input, the damping force is completely generated by the metal rubber damping structure immersed in the magnetorheological fluid, when the magnetic field coil is activated according to an externally given electric signal to generate a magnetic field, the magnetorheological fluid flowing upwards or downwards in the shearing gap generates a rheological effect under the action of the magnetic field to generate a shearing damping force, and in addition, the magnetorheological fluid in the upper and lower metal rubber elements also generates a tendency of semi-solid transition due to the effect of the magnetic field, so that the rigidity and damping of the metal rubber elements are enhanced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111369989.XA CN113983109B (en) | 2021-11-18 | 2021-11-18 | Composite shock absorber based on metal rubber and magnetorheological effect and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111369989.XA CN113983109B (en) | 2021-11-18 | 2021-11-18 | Composite shock absorber based on metal rubber and magnetorheological effect and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113983109A CN113983109A (en) | 2022-01-28 |
| CN113983109B true CN113983109B (en) | 2023-12-22 |
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| CN202111369989.XA Active CN113983109B (en) | 2021-11-18 | 2021-11-18 | Composite shock absorber based on metal rubber and magnetorheological effect and working method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2551806Y (en) * | 2002-06-26 | 2003-05-21 | 重庆大学 | Magnetic rheological liquid vibration-damper for automobile |
| CN101319699A (en) * | 2008-07-11 | 2008-12-10 | 重庆大学 | Magneto-rheological fluid vibration damper with ring-shaped external magnetic field generator |
| CN101725660A (en) * | 2009-12-17 | 2010-06-09 | 哈尔滨工业大学 | High-frequency decoupling piston magneto-rheological damper |
| CN109158563A (en) * | 2018-10-31 | 2019-01-08 | 燕山大学 | Continuous cast mold magnetic stirrer with resultant field |
| CN112360915A (en) * | 2020-08-20 | 2021-02-12 | 武汉理工大学 | Novel magnetorheological fluid shock absorber |
| CN112923001A (en) * | 2021-01-29 | 2021-06-08 | 中国劳动关系学院 | Circumferential excitation magnetorheological damper |
| CN216279145U (en) * | 2021-11-18 | 2022-04-12 | 福州大学 | Composite shock absorber based on metal rubber and magnetorheological effect |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5828558B2 (en) * | 2012-03-01 | 2015-12-09 | Ｋｙｂ株式会社 | Magnetorheological fluid shock absorber |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2551806Y (en) * | 2002-06-26 | 2003-05-21 | 重庆大学 | Magnetic rheological liquid vibration-damper for automobile |
| CN101319699A (en) * | 2008-07-11 | 2008-12-10 | 重庆大学 | Magneto-rheological fluid vibration damper with ring-shaped external magnetic field generator |
| CN101725660A (en) * | 2009-12-17 | 2010-06-09 | 哈尔滨工业大学 | High-frequency decoupling piston magneto-rheological damper |
| CN109158563A (en) * | 2018-10-31 | 2019-01-08 | 燕山大学 | Continuous cast mold magnetic stirrer with resultant field |
| CN112360915A (en) * | 2020-08-20 | 2021-02-12 | 武汉理工大学 | Novel magnetorheological fluid shock absorber |
| CN112923001A (en) * | 2021-01-29 | 2021-06-08 | 中国劳动关系学院 | Circumferential excitation magnetorheological damper |
| CN216279145U (en) * | 2021-11-18 | 2022-04-12 | 福州大学 | Composite shock absorber based on metal rubber and magnetorheological effect |
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| CN113983109A (en) | 2022-01-28 |
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