CN110067220A - A kind of type rotary anti-collision guardrail based on magnetorheological glue - Google Patents
A kind of type rotary anti-collision guardrail based on magnetorheological glue Download PDFInfo
- Publication number
- CN110067220A CN110067220A CN201910373002.8A CN201910373002A CN110067220A CN 110067220 A CN110067220 A CN 110067220A CN 201910373002 A CN201910373002 A CN 201910373002A CN 110067220 A CN110067220 A CN 110067220A
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- China
- Prior art keywords
- staving
- protective fence
- magnetorheological glue
- type rotary
- magnetorheological
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/145—Means for vehicle stopping using impact energy absorbers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/145—Means for vehicle stopping using impact energy absorbers
- E01F15/146—Means for vehicle stopping using impact energy absorbers fixed arrangements
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention belongs to highway safety facility technology fields, it is related to a kind of type rotary anti-collision guardrail based on magnetorheological glue, including protective fence and the anti-collision body being arranged on protective fence, each anti-collision body includes staving, through the intracorporal column of bucket, the permanent magnet being set on column and the magnetorheological glue being arranged between permanent magnet and staving is arranged in.This protective fence is placed in outside as buffering energy-absorbing material using the magnetorheological glue with reversible magnetic control mechanical characteristic; permanent magnet is placed in inside as field generator for magnetic; convolution is covered to be played the role of protecting flux path in upper and lower capping; so that anticollision barrier is under impact extruded; magnetorheological glue moves closer to permanent magnet; the damping force of magnetorheological glue increases under magnetic fields, to greatly buffer and absorb impact energy.Anticollision barrier can restore to the original state rapidly in dissipation impact energy rear anti-crash staving and magnetorheological glue, to effectively improve protection level and durability, safe and efficient protection staff safety simultaneously reduces vehicle damage.
Description
Technical field
The invention belongs to highway safety facility technology fields, are related to a kind of type rotary anti-collision guardrail based on magnetorheological glue.
Background technique
It is one of more serious accident pattern on the protective fence that the automobile run at high speed bumps against among roadside or road, and this
A little protective fences are made of the metal horizontal bar of spaced concret block and connection adjacent block mostly.These protective fences
Energy absorption capacity is generally weaker, is difficult to accomplish to fully absorb the impact kinetic energy of automobile, and collided by the opposition of protective fence
Afterwards, the overturning or reversion that automobile occurs deviate former lane, easily with the automobile generation secondary collision run at high speed, while
It is also easy to produce spark when automobile and metal high-speed impact, easily leads to the generation of fire, exacerbates the harmfulness of accident, cannot play
The effect of security protection.
In addition, metal has perishable, poor toughness, and highway is a kind of use time longer infrastructure,
Exposing to the weather year in year out drenches with rain and the exhaust gas of automobile is under its erosion, guardrail board and damage of easily getting rusty, seriously
Affect its service performance and service life.Meanwhile existing protective fence still there are many and be made of gloomy metal, at night
Reflective and rain and fog weather warning effect is bad, has influenced the safe driving of driver to a certain extent.
Currently, having plastic-spraying guardrail board, easy opening type anti-collision movable guardrail, type rotary anti-collision guardrail than more typical protective fence
Deng.The coated inside of plastic-spraying guardrail board is hot galvanized layer, and surface plastic spraying obtains anti-corrosion function, has preferable sight line inducing function
Can, but it is flexible or inadequate, still it be easy to cause the damage of automobile and the injures and deaths of personnel；What easy opening type anti-collision movable guardrail was reinforced
Mainly installation convenience and anti-theft do not focus on solving the deficiency of protective capacities；Type rotary anti-collision guardrail compares the two
It is obviously improved in terms of flexibility, absorbs energy by deforming self, reduce the injures and deaths of personnel, but still remained such as
Steering direction after on car hit is not fixed, cushion performance should not enough, without apparent energy absorption characteristics the deficiencies of.
Magnetorheological glue is a kind of magnetosensitive viscoelastic material developed to overcome the particle settlement issues of magnetorheological fluid.Its base
Body is the gelatinous polymer between fluid and elastomer, and particle has very high in highly viscous polymeric matrix
Stability.Since constraint of the gelatinous matrix to particle is relatively weak, the particle of magnetorheological glue energy under magnetic fields
Enough overcome matrix to constrain and move, generates magnetic interaction power, moment assembles along magnetic direction to form particle chain structure, makes
The surface for obtaining magnetorheological glue is in tufted class solid forms, to have fabulous anti-vibration performance, cushion performance and damping capacity.Base
In this, using the magnetorheological glue with reversible magnetic control performance as the energy-absorbing material of anticollision barrier, by the whole of great enhancing guardrail
Body performance preferably escorts to enhance road safety for driver.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of type rotary anti-collision guardrail based on magnetorheological glue, to solve
Existing protective fence has that buffering energy-absorbing performance is bad.
In order to achieve the above objectives, the invention provides the following technical scheme:
A kind of type rotary anti-collision guardrail based on magnetorheological glue, including protective fence and the anticollision being arranged on protective fence
Body, each anti-collision body include staving, through the intracorporal column of bucket, the permanent magnet being set on column is arranged in and sets
Set the magnetorheological glue between permanent magnet and staving.
Optionally, the magnetorheological glue is made of magnetic-particle and polyurethane matrix, wherein magnetic-particle be carbonyl iron dust,
One of carbonyl nickel powder, carbonyl cobalt powder are a variety of；Polyurethane matrix is formed by diisocyanate and polyol reaction, and institute
State diisocyanate be methyl diphenylene diisocyanate MDI, toluene di-isocyanate(TDI) TDI, paraphenylene diisocyanate PPDI, 1,
5- naphthalene diisocyanate NDI, hexamethylene diisocyanate HDI, dimethyl diphenyl diisocyanate TODI, two isocyanide of isophorone
At least one of acid esters IPDI, the polyalcohol are polyethylene glycol, 1,2-PD, 1,4-butanediol, butadiene polyalcohol
Or at least one of castor oil.
Optionally, the permanent magnet is wrapped in the outside of the column to match with permanent magnet shape.
Optionally, the permanent magnet is using one in rare earth permanent-magnetic material, ferrite sintered body, rubber magnet, alnico, SmCo
Kind is a variety of, and surface takes coating to handle.
Optionally, the staving two sides are equipped with the convolution lid for closing the staving, and the staving and the convolution are covered
Rotation setting.
Optionally, the staving is equipped with the connecting plate for being connected with protective fence, and the connecting plate is equipped with through-hole,
The position that the protective fence and the aperture match is equipped with via hole, for being carried out with staving using screw, bolt or pin
It is detachably connected.
Optionally, the protective fence is equipped with two, sets up separately in staving two sides, respectively the first protective fence and the second protection
Column.
Optionally, first protective fence and/or the second protective fence include two protective fence fissions, two protective fence fissions
It is detachably connected by connection end.
Optionally, it is equipped with outside the staving convenient for the reflective strip of identification staving position.
Optionally, the lower margin for fixing single unit system is additionally provided on the staving.
Optionally, the protective fence uses one of plastic-spraying galvanized steel plain sheet, preplating zinc-aluminum-magnesium guardrail board, and shape selects wave
Shape or U-shaped.
Optionally, fixation hole is additionally provided on the lower margin.
The beneficial effects of the present invention are:
The present invention uses a kind of rotational structure, and staving is mounted on column, rotates freely staving on column.
When automobile is out of control hits the first protective fence, staving can be oriented to errant vehicle by rotating freely, by the power of shock
Amount is converted into rotation function, so as to effectively decompose the impulsive contact force of automobile, enables the impact force for being vertically to guardrail
It decomposes and is parallel on the direction of guardrail, greatly reduce and hit power and impact energy, automobile is avoided to break through protective fence, thus
Effectively mitigate consequence caused by traffic accident, reduces a possibility that causing great personal injury and economic loss.
2, the new structure for the interlayer injection magnetorheological glue that present invention employs a kind of in staving, magnetorheological glue be it is a kind of with
Non magnetic soft colloid is matrix, and the magnetorheological material of novel intelligent of its performance between magnetorheological fluid and magnetic rheology elastic body
Material.Magnetorheological glue has both the advantages of magnetorheological fluid and magnetic rheology elastic body, can make magnetic particle keep in the base it is stable and
With sensitive magnetic field responsiveness.Magnetorheological glue has plasticity, can arbitrarily change shape under no magnetic field conditions, and have
Have the characteristics of magnetic control viscosity and yield stress as magnetorheological fluid, and magnet controlled damping as magnetic rheology elastic body and
The characteristics of elasticity modulus.The damping of magnetorheological glue and rigidity are controlled by externally-applied magnetic field.The first protective fence is hit when automobile is out of control, in pressure
, can be because certain deformation occur for impulse force while staving rotates when staving, at this moment it is vertical to move closer to intermediate supports for magnetorheological glue
The permanent magnet of column, therefore obtain and reduce and increased externally-applied magnetic field with distance, so that the impact force to automobile is effectively consumed
It dissipates, achievees the purpose that buffering, and can play a certain protective role to automobile body, destructive power caused by reduction accident.This hair
It is bright to possess protective capacities more better than existing protective fence, by the close magnetic field of magnetorheological glue and magnetic field is left, improves protection
The service life on column.
Other advantages, target and feature of the invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.Target of the invention and other advantages can be realized by following specification and
It obtains.
Detailed description of the invention
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing excellent
The detailed description of choosing, in which:
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is section structural schematic diagram of the invention；
Fig. 3 is partial top view of the invention；
Fig. 4 is overall top view of the invention；
Fig. 5 is work flow diagram of the invention.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.It should be noted that diagram provided in following embodiment is only to show
Meaning mode illustrates basic conception of the invention, and in the absence of conflict, the feature in following embodiment and embodiment can phase
Mutually combination.
Wherein, the drawings are for illustrative purposes only and are merely schematic diagrams, rather than pictorial diagram, should not be understood as to this
The limitation of invention；Embodiment in order to better illustrate the present invention, the certain components of attached drawing have omission, zoom in or out, not
Represent the size of actual product；It will be understood by those skilled in the art that certain known features and its explanation may be omitted and be in attached drawing
It is understood that.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；It is retouched in of the invention
In stating, it is to be understood that if there is the orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right", "front", "rear"
To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or
It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore is described in attached drawing
The term of positional relationship only for illustration, is not considered as limiting the invention, for the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
Please refer to Fig. 1-Fig. 5, the element numbers in attached drawing respectively indicate: the first protective fence 1, connection end 2, anti-collision body 3,
Permanent magnet 4, connecting plate 5, lower margin 6, the second protective fence 7, column 8, magnetorheological glue 9, reflective strip 10, staving 11, convolution lid 12.
Embodiment one
The present invention relates to a kind of type rotary anti-collision guardrail based on magnetorheological glue, including the first protective fence 1, connection end 2,
Magnetorheological glue 9, staving 11, permanent magnet 4, connecting plate 5, lower margin 6, the second protective fence 7, reflective strip 10, column 8.First protective fence 1
The position of 30cm or so below 8 top half top of column is mounted on by connecting plate 5, it is equally spaced on staving 11 to stick
Three reflective strips 10, then staving 11 is sleeved on column 8, the second protective fence 7 is mounted on column 8 by connecting plate 5, column
8 are mounted on lower margin 6 by connecting plate 5, and lower margin 6 is installed on the ground, each section of the first protective fence 1 and the second protective fence 7
It is linked together by connection end 2 and connecting plate 5 by fastening screw.
Wherein, primary structure is the permanent magnet 4 of a nested strip on column 8, and will be prepared by certain method
The magnetorheological glue 9 come is added in staving 11, and is covered down through convolution lid 12, can be produced using the design of this structure
Raw good magnetic field, and complete flux path is protected, it can make full use of the magnetic control power of magnetorheological glue 9 using the design of this structure
Characteristic is learned to shock dissipation of energy and absorption.
The magnetorheological glue 9 is made of magnetic-particle and polyurethane matrix, and wherein magnetic-particle is carbonyl iron dust；Poly- ammonia
Ester group body is formed by diisocyanate and polyol reaction, and the diisocyanate is methyl diphenylene diisocyanate
MDI, toluene di-isocyanate(TDI) TDI, paraphenylene diisocyanate PPDI, the polyalcohol are polyethylene glycol.The magnetic current prepared
Becoming glue 9 has excellent magnetic field responsiveness and buffer damping performance.
The permanent magnet 4 uses rare earth permanent-magnetic material (rubidium iron boron Nd2Fe14B, surface take coating to handle, and shape is selected
The permanent magnet 4 of cylinder hollow type, a complete strip is placed on 8 middle of column.
It is provided with convolution lid 12 on the column 8, between staving 11 and the first protective fence 1 and the second protective fence 7, uses
It is rotated in support staving 11, brought impact force is hit to effectively decompose, while playing sealing role, so that permanent magnet
4 magnetic fields generated are maintained complete flux path, and magnetorheological glue 9 is enable normally to play magnetic control mechanical property.
The staving 11 uses the composite material of EVA and polyurethane.
First protective fence 1 and the second protective fence 7 use plastic-spraying galvanized steel plain sheet, and it is respectively 2 one that shape, which selects waveform,
Group.
The anticollision barrier effectively can slow down automobile impacting bring impact force by rotating, and by decomposing not fall
Certain change of properties can be generated under magnetic fields to absorb by magnetorheological glue 9 close to permanent magnet 4 when the compressing of power
Most of energy.Automobile can be returned to normally travel road by a small amount of damage under anticollision barrier protection, avoid major issue
Therefore generation, and anticollision barrier can also automatically return to original state after being detached from automobile crash.
Embodiment two
The present embodiment what is different from the first embodiment is that the magnetorheological glue 9 in the present embodiment by magnetic-particle and poly- ammonia
Ester group body is constituted, and wherein magnetic-particle is carbonyl nickel powder；Polyurethane matrix is formed by diisocyanate and polyol reaction, and
The diisocyanate is 1,5- naphthalene diisocyanate NDI, hexamethylene diisocyanate HDI, and the polyalcohol is 1,2- the third two
Alcohol, 1,4-butanediol.The magnetorheological glue 9 prepared has excellent magnetic field responsiveness and buffer damping performance.Described
Permanent magnet 4 uses ferrite sintered body, and surface takes coating to handle, and shape selects cylinder hollow type, the permanent magnetism of a complete strip
Body 4 is placed on 8 middle of column.The staving 11 uses rubber material.First protective fence 1 and the second protective fence 7
Using preplating zinc-aluminum-magnesium guardrail board, shape selects waveform.
Embodiment three
The present invention is unlike above embodiments, and magnetorheological glue 9 is by magnetic-particle and poly- ammonia described in the present embodiment
Ester group body is constituted, and wherein magnetic-particle is carbonyl cobalt powder；Polyurethane matrix is formed by diisocyanate and polyol reaction, and
The diisocyanate is dimethyl diphenyl diisocyanate TODI, isophorone diisocyanate IPDI, and the polyalcohol is
Butadiene polyalcohol or castor oil.The magnetorheological glue 9 prepared has excellent magnetic field responsiveness and buffer damping performance.
The permanent magnet 4 uses alnico, and surface takes coating to handle, and shape selects cylinder hollow type, and a complete strip is forever
Magnet 4 is placed on 8 middle of column.The staving 11 uses the composite material of EVA and polyurethane.First protective fence
1 and second protective fence 7 use preplating zinc-aluminum-magnesium guardrail board, shape select U-shaped.
Working principle of the present invention: the present invention is protected by the way of " four column of a column " by reinforcing support post 8, first
The performance and mounting means on column 1 and the second protective fence 7, are effectively prevented automobile and pass through protective fence, be driven out to traveling lane.And it uses
A kind of rotational structure, it is that staving 11 can be vertical that high resilience and the wear-resisting staving 11 of anticollision, which is mounted on support post 8,
It is rotated freely on column 8, passes through this shock for rotating freely decomposition automobile impact force, making perpendicular to protective fence direction of staving 11
Power, which decomposes, to be parallel on the direction of protective fence, is effectively absorbed and is reduced by staving 11, to effectively mitigate traffic accident
Caused by consequence.
Staving 11 is using the composite material of EVA and polyurethane, and this high intensity EVA and polyurethane material are inherently rich in bullet
Property and anticollision is wear-resisting, is crashed when can be hit to avoid staving 11, is effectively protected to protective fence and occupant.It removes
Except anticollision wear-resisting property, also has many advantages, such as chemically resistant material burn into anti-ultraviolet ageing, not cracky, exquisite appearance is not
Fugitive color, outdoors under natural conditions, service life at least 10 years or more.Once occur traffic accident, when automobile impacting to it
When, by rotation mode, the energy of collision is converted to the energy of rotation, keeps normally travel direction and the speed of automobile, very
Traffic accident rate is reduced to limits, the personal safety of people is protected, provides one kind effective highway safety guarantee.
The particularly suitable installation in black spots such as tunnel face, central partition, area of swerving, complicated intersections is answered
With.It is noted that there are also very strong restoring forces for staving 11, even if can also be recovered immediately as former state by serious shock.Separately
Outside, 11 appearance of staving is bright-coloured, there is yellow, green, Chinese red etc., the bright reflecting effect of height, and 11 surface layer of staving has been pasted instead
Light horizontal stripe has eyeball capture function, can cause the attention of driver, reduces the incidence of accident, especially can guarantee driving
Driving safety of the member at night and rainy day.
The present invention uses a kind of rotary structure based on magnetorheological glue 9 in a creative way.Magnetorheological glue 9 is magnetorheological material
One kind of material, soft magnetic particles material is uniform and is continuously dispersed in the intelligent green wood being prepared in different basis materials
Material, settling property is stablized, low to the seal request of instrument, has excellent magnetic field responsiveness.Magnetorheological glue 9 is with viscoplasticity
Semisolid, can be injected into easily in 11 interlayer of staving of staving 11.After injection, colloid is adhered in interlayer
Permanent magnet 4 on wall, with support post 8 maintains a certain distance, it is possible to regard no magnetic field condition or low-intensity magnetic field item as
Part, magnetorheological glue 9 under this condition have the buffer damping performance similar with magnetorheological fluid, can when car hit comes,
Its impact force is slowed down to greatest extent, can ensure automobile will not directly and protective fence firmly to hard collision, to have
Effect ground avoids result in being damaged for vehicle and protective fence, and is effectively prevented from generation casualties.
Since magnetorheological glue 9 is under the conditions of certain magnetic field, storage modulus starts quickly to increase, and loss modulus is begun to decline,
It is increasingly becoming class solid, so that it can significantly increase the control of vibration, significant change is also had occurred in rigidity, is provided with good
Vibration isolating effect.When the bigger automobile of quality or truck wide-angle knock, even if the rotation of staving 11 can not be by major part
Power decompose, staving 11 will carry out a degree of deformation in the case where extra power, so that staving 11 is from permanent magnet 4
Increasingly closer, i.e., magnetorheological glue 9 is also increasingly closer from permanent magnet 4.Magnetorheological glue 9 at this time under the influence of a magnetic field, quickly
Carry out the transformation to class solid, can not only a greater degree of energy-absorbing, slow down impact force, rigidity that also can be tough and tensile according to its makes
The bigger automobile of quality or truck are forced to change direction, to return to normal driving direction, complete more highly difficult protection
Measure, after vehicle, which leaves protective fence, returns to normal road traveling, pressure disappears, and staving 11 restores to the original state, and magnetorheological glue 9 is separate
Magnetic field is still adhered to 11 inner wall of staving to return to colloidal state, and durability is all well and good.So in tunnel face, center isolation
The accident-prone road sections such as band, area of swerving, complicated intersection, starting point of going up a hill, high wind area can play splendid
Protection level.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of the technical program, should all be covered in the present invention
Scope of the claims in.
Claims (10)
1. a kind of type rotary anti-collision guardrail based on magnetorheological glue, it is characterised in that: including protective fence and be arranged in protective fence
On anti-collision body, each anti-collision body includes staving, through the intracorporal column of bucket, the permanent magnetism being set on column is arranged in
Body and the magnetorheological glue being arranged between permanent magnet and staving.
2. the type rotary anti-collision guardrail based on magnetorheological glue as described in claim 1, it is characterised in that: the magnetorheological glue
Be made of magnetic-particle and polyurethane matrix, wherein magnetic-particle be one of carbonyl iron dust, carbonyl nickel powder, carbonyl cobalt powder or
It is a variety of；Polyurethane matrix is formed by diisocyanate and polyol reaction, and the diisocyanate is diphenyl methane two
Isocyanates MDI, toluene di-isocyanate(TDI) TDI, paraphenylene diisocyanate PPDI, 1,5- naphthalene diisocyanate NDI, hexamethyl two
At least one of isocyanates HDI, dimethyl diphenyl diisocyanate TODI, isophorone diisocyanate IPDI, it is described
Polyalcohol is at least one of polyethylene glycol, 1,2-PD, 1,4-butanediol, butadiene polyalcohol or castor oil.
3. the type rotary anti-collision guardrail based on magnetorheological glue as described in claim 1, it is characterised in that: the permanent magnet packet
It is wrapped in the outside of the column to match with permanent magnet shape.
4. the type rotary anti-collision guardrail as described in claim 1 or 3 based on magnetorheological glue, it is characterised in that: the permanent magnetism
Body uses one of rare earth permanent-magnetic material, ferrite sintered body, rubber magnet, alnico, SmCo or a variety of, and surface is taken at coating
Reason.
5. the type rotary anti-collision guardrail based on magnetorheological glue as described in claim 1, it is characterised in that: the staving two sides
Equipped with the convolution lid for closing the staving, the staving and convolution lid rotation setting.
6. the type rotary anti-collision guardrail based on magnetorheological glue as described in claim 1, it is characterised in that: set on the staving
There is the connecting plate for being connected with protective fence, the connecting plate is equipped with through-hole, and the protective fence matches with the aperture
Position be equipped with via hole, for being detachably connected with staving using screw, bolt or pin.
7. the type rotary anti-collision guardrail based on magnetorheological glue as described in claim 1, it is characterised in that: the protective fence is set
There are two, sets up separately in staving two sides, respectively the first protective fence and the second protective fence.
8. the type rotary anti-collision guardrail based on magnetorheological glue as described in claim 8, it is characterised in that: first protection
Column and/or the second protective fence include two protective fence fissions, and two protective fence fissions are detachably connected by connection end.
9. the type rotary anti-collision guardrail based on magnetorheological glue as described in claim 1, it is characterised in that: outside the staving
Equipped with the reflective strip convenient for identification staving position.
10. the type rotary anti-collision guardrail based on magnetorheological glue as described in claim 1, it is characterised in that: on the staving
It is additionally provided with the lower margin for fixing single unit system.
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| CN201910373002.8A CN110067220A (en) | 2019-05-06 | 2019-05-06 | A kind of type rotary anti-collision guardrail based on magnetorheological glue |
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| CN201910373002.8A CN110067220A (en) | 2019-05-06 | 2019-05-06 | A kind of type rotary anti-collision guardrail based on magnetorheological glue |
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