CN102352904A - Shock absorber with suspension magnets and automatic damping regulation function - Google Patents
Shock absorber with suspension magnets and automatic damping regulation function Download PDFInfo
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- CN102352904A CN102352904A CN2011103072169A CN201110307216A CN102352904A CN 102352904 A CN102352904 A CN 102352904A CN 2011103072169 A CN2011103072169 A CN 2011103072169A CN 201110307216 A CN201110307216 A CN 201110307216A CN 102352904 A CN102352904 A CN 102352904A
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- 239000000126 substance Substances 0.000 claims description 49
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Abstract
The invention relates to a shock absorber with suspension magnets and an automatic damping regulation function, which belongs to a shock absorber which can be compressed and can rebound to reset and particularly relates a shock absorber generating elasticity by using the magnetic force of the magnets. At least one suspension permanent magnet is arranged in the tube body of the shock absorber; the magnetic poles of the suspension permanent magnets are opposite to the magnetic poles of a positioning permanent magnet and a piston permanent magnet; the magnetic poles of the suspension permanent magnets are opposite; the magnetic pole face of each suspension permanent magnet is provided with a closed loop coil for generating a damping action; and the annular face of each turn of coil of the closed loop coil is vertical to the centre line of the tube body. The shock absorber with the suspension magnets and the automatic damping regulation function has the advantages of simple structure, small cross section, light weight and good damping property.
Description
Technical field
The invention belongs to the vibration damper that can be compressed and can resilience reset, particularly the magnetic force with magnet produces flexible vibration damper.
Background technique
Now with the elastic force of magnet magnetic force as vibration damper; Be fixing motionless magnet in the vibration damper bottom; Fixing moving magnet that is synchronized with the movement with piston on piston, the magnetic pole of these two strong magnets is that same pole is relative, with the elastic force of the relative repulsive force of same pole as vibration damper.Because the magnetic force of permanent magnet is generally less, just with the volume that increases motionless magnet and moving magnet, the area that increases the opposing side of these two magnets satisfies the elastic force of vibration damper needs.Its shortcoming is to make the weight of vibration damper too big, and the cross section of vibration damper is big too, and the consumption material is many, cost is high and the shortage practicability.As use one group of diameter be 3.0 centimetres neodymium iron boron magnetic body as the elastic member of the vibration damper of electric bicycle, the stroke of vibration damper also has only 2.0-3.0 centimetre; As use one group of diameter be 10.0 centimetres ferrimagnet as the elastic member of the vibration damper of electric bicycle, the stroke of vibration damper also has only 2.0-4.0 centimetre, not only volume is big, weight is big, cost is high, stroke is also too short, does not have the flexibility of damping.
For overcoming the magnetic force deficiency of permanent magnet; Have the human electromagnet as the elastic member of vibration damper to increase magnetic force; But its shortcoming is: the electric energy of the battery that carries on the vehicle is to change; Then the magnetic force of electromagnet changes, and the damping effect that causes vibration damper is the power change with battery, and promptly the damping effect of vibration damper is unstable.For preventing that battery from can not supply power, also need additional springs as spare unit, this vibration damper complex structure, poor stability.
Summary of the invention
The purpose of this invention is to provide a kind of function with automatic adjusting damping and amortization, simple in structure, cross section is little, in light weight, with two permanent magnets with the vibration damper of the repulsive force between magnetic pole as elastic force.
Structure of the present invention is:
Levitated magnet and the automatic vibration damper of regulating damping are arranged; Comprise body 1, body 1 one end internal fixation have location permanent magnet 2, are provided with piston mobile 3 in body 1 the other end; Adjacent that of piston 3 and location permanent magnet 2 simultaneously is fixed with piston permanent magnet 4; It is characterized in that: two-layer inside and outside body 1 is divided into, internal layer is a pipe 5 in the nonmagnetic substance, and skin is a rigidity bearing tube 6; Manage in 5 in the nonmagnetic substance between location permanent magnet 2 and piston permanent magnet 4; At least be provided with one and location permanent magnet 2 and all discontiguous suspension permanent magnet 8 of piston permanent magnet 4; Suspension permanent magnet 8 is relative with magnetic pole with the adjacent surface of location permanent magnet 2; Suspension permanent magnet 8 is relative with magnetic pole with the adjacent surface of piston permanent magnet 4, and the adjacent surface between the adjacent difference suspension permanent magnet 8 is relative with magnetic pole; Suspension permanent magnet 8 along body 1 longitudinally thickness reach suspension permanent magnet 8 at least and in nonmagnetic substance, manage the 5 needed thickness that can not overturn;
Suspension permanent magnet 8 one or two magnetic pole strengths are provided with and close and circuit coil 9, on 8 one magnetic pole strengths of suspension permanent magnet close with 9 of circuit coils be one around to, promptly only be clockwise direction around or only be counterclockwise direction around; Close vertical with body 1 center line with the ring surface of circuit coil 9 every circle coils.
If location permanent magnet 2, piston permanent magnet 4 are that quality is the same and big or small identical with suspension permanent magnet 8; As between location permanent magnet 2 and piston permanent magnet 4, a suspension permanent magnet 8 being arranged; Two magnet clearance spaces are then arranged, and this has the vibration damper of suspension permanent magnet just to be equivalent to two supporting power and running lengths of having only the no suspension permanent magnet vibration damper of location permanent magnet 2 and piston permanent magnet 4.Constant like supporting power, then there is each magnet cross sectional area of the vibration damper of suspension permanent magnet almost to need only the half the of no each magnet cross section of suspension permanent magnet vibration damper.So bear under the weight condition, there is the vibration damper of levitated magnet can significantly reduce the cross section of permanent magnet, increase stroke, also make vibration damper do very for a short time.
For location permanent magnet 2, piston permanent magnet 4 and suspension permanent magnet 8, the pole polarity of the adjacent surface of any adjacent magnets or title opposing side is identical, and promptly the South Pole is to the South Pole, and the arctic is to the arctic.The repulsive force of the identical generation of pole polarity of this opposing side also is the power that suspension permanent magnet 8 can be suspended just as the elastic force of vibration damper.
Use nonmagnetic substance with pipe in the vibration damper that magnet directly contacts; There is not magnetic attraction when making piston permanent magnet 4 and suspension permanent magnet 8 in nonmagnetic substance, manage in 5 to-and-fro motion and between the interior pipe; Do not influence reciprocating sensitivity; Particularly the friction between magnet and the interior pipe can be very little, and increased the serviceability of vibration damper.
No matter suspension permanent magnet 8 is any shape, and pipe can not overturn in 5 in nonmagnetic substance, is same pole otherwise suspension permanent magnet 8 just can not keep the adjacent surface with adjacent magnets.In nonmagnetic substance, manage upset in 5 for the permanent magnet 8 that prevents to suspend, suspension permanent magnet 8 can not be a thin slice, and certain thickness should be arranged, and will reach the degree that suspension permanent magnet 8 can not be overturn along the thickness of pipe 5 central shafts in the nonmagnetic substance.The thickness of general suspension permanent magnet 8 should be maximum wide by 1/6 greater than pipe in the nonmagnetic substance 5.
The function of automatically regulating damping and amortization is achieved in that same to close the magnetic line of force that closes with circuit coil 9 acquisition induced current with circuit coil 9 every circles all be same direction owing to close vertically with body 1 center line with the ring surface of circuit coil 9 every circle coils.Be pressed towards the bottom direction of vibration damper when shock absorber piston 3; Suspension permanent magnet 8 also is pressed towards the bottom direction motion; The magnetic flux that closes with circuit coil 9 that is fixed on piston permanent magnet 4 and suspension permanent magnet 8 a certain magnetic poles changes; Make and close and the circuit coil 9 interior induced current that produce, the magnetic field magnetic force that this induced current produced always hinders the motion of piston permanent magnet 4 and suspension permanent magnet 8, promptly produces damping function.That is to say; When shock absorber piston 3 is pressed towards bottom direction; Close with circuit coil 9 and just produce the damping magnetic force that stops piston 3 to be pressed towards bottom direction automatically; It is fast more that piston 3 is pressed towards the movement velocity of bottom direction, and it is also big more to close the induced current that produces with circuit coil 9, and the damping magnetic force that produces automatically is big more.When shock absorber piston 3 resiliences away from bottom direction; Close with circuit coil 9 and produce a back current again; The magnetic force that back current produces hinders shock absorber piston 3 resiliences again, and piston 3 return speed are slowed down, and closes the effect that the magnetic force that produces with circuit coil 9 has damping piston 3 returning quicklies again.So close with circuit coil 9 and always produce magnetic force prevention piston 3 motions opposite with piston 3 moving direction; And piston 3 motions are fast more; This damping magnetic force is strong more; This just can make piston 3 to-and-fro motion all flexible more and steady, reduces vibrations, and this vibration damper is used for vehicle damping makes the people who takes more comfortable.
Close the reason that all produces damping function with 9 pairs of pistons reciprocating 3 of circuit coil with the physics explanation below: Faraday's law----electromagnetic induction produces the size of induction electromotive force, is directly proportional with the flux change rate of interlinkage.Be E=-n ΔΦ/Δ t.In the formula, n is a number of inductive coil turns, in the Δ t time during magnetic flux change Δ ф; The electromotive force that produces is e; The meaning of negative sign "-" is in the formula, and each other during the magnetic flux change of interlinkage, coil produces the direction of electromotive force always towards the direction that hinders flux change.And when the magnetic flux increase of mutual interlinkage perhaps reduced, the electromotive force that is produced was in the opposite direction.So the electromotive force that produces with circuit coil 9 that closes among the present invention always hinders piston 3 motions, promptly produces damping function.
The adjacent pole face of piston permanent magnet 4 and suspension permanent magnet 8 is provided with and closes and circuit coil 9, or the adjacent pole face of location permanent magnet 2 and suspension permanent magnet 8 is provided with and closes and circuit coil 9; One close with 9 of circuit coils be one around to, promptly only be clockwise direction around or only be counterclockwise direction around; Close vertical with body 1 center line with the ring surface of circuit coil 9 every circle coils.Close and circuit coil 9 at piston permanent magnet 4 or can establishing of permanent magnet 2 of location to suspension permanent magnet 8 magnetic pole strengths; Vertical with body 1 center line with the ring surface of circuit coil 9 every circle coils owing to closing, making every circle close the magnetic line of force that obtains induced current with circuit coil 9 all is same direction.Then this closes the principle that produces piston 3 damping functions with circuit coil 9 and is same as the principle that produces damping function with circuit coil 9 of closing on the above-mentioned suspension permanent magnet 8.
Be provided with suspension permanent magnet 8 magnetic pole strengths that close with circuit coil 9 and be and cave inward that to close piston permanent magnet 4 magnetic pole strengths with circuit coil 9 be the structure or be provided with location permanent magnet 2 magnetic pole strengths that close with circuit coil 9 and be the structure that caves inward of caving inward for structure or be provided with; Close with circuit coil 9 and be embedded in the depression.
Preferably being provided with each the permanent magnet magnetic pole-face that closes with circuit coil 9 all is sunk structure, closes with circuit coil 9 all to be located in the sunk structure.Establish in the sunk structure close with circuit coil 9 can avoid closing with circuit coil 9 and nonmagnetic substance in pipe 5 contact, protection is closed and circuit coil 9, and manages 5 and contact with the suspension permanent magnet 8 of wear-resisting wiping and piston permanent magnet 4 and nonmagnetic substance are interior.Can avoid like this closing with circuit coil 9 and nonmagnetic substance in pipe 5 contact, protection is closed and circuit coil 9, and manages 5 and contact the mechanical property of raising vibration damper, enhancing serviceability with the suspension permanent magnet 8 of wear-resisting wiping and piston permanent magnet 4 and nonmagnetic substance are interior.
Body 1 that end of putting into piston 3 is fixed with ring type permanent magnet 7, and ring type permanent magnet 7 is relative with magnetic pole with piston permanent magnet 4; Piston 3 passes the hole in the ring type permanent magnet 7, and piston 3 is managed in nonmagnetic substance in 5 in the hole with ring type permanent magnet 7 slidably.
Ring type permanent magnet 7 is relative with magnetic pole with piston permanent magnet 4, when like this can piston 3 resiliences resetting to the rearmost position, stops piston 3 to eject in the nonmagnetic substances to manage 5 with magnetic force is flexible.Make in the process that piston 3 resiliences reset, the people feels to have more travelling comfort.
Pipe 5 is a certain of copper material pipe or aluminum material pipe or non-magnetic stainless steel or engineering plastics material pipe in the nonmagnetic substance.Non-magnetic stainless steel is a most preferred material.
Location permanent magnet 2, piston permanent magnet 4 and ring type permanent magnet 7 are neodymium iron boron NdFeB magnets, are that magnetic energy product is at least 318BHmax/KJm
-3Permanent magnet.This be a kind of be the economical and practical again magnet material of technical feasibility for vibration damper.
In the nonmagnetic substance of locating between permanent magnet 2 and the piston permanent magnet 4, in the pipe 5, be provided with 2-3 or 4-6 or 6-8 and location permanent magnet 2 and all discontiguous suspension permanent magnet 8 of piston permanent magnet 4; Same magnetic pole between the different suspension permanent magnets 8 is relative.
If use magnetic energy product to be at least 318BHmax/KJm
-3Permanent magnet, make load-carrying 1-2 people's the non-locomotive such as the vibration damper of storage battery car, motorcycle etc., being provided with 2-3 suspension permanent magnet 8 in the nonmagnetic substance of vibration damper in the pipe 5, just vibration damper boundary dimension to be may diminish to both artistic and practical, lower-cost again requirement.Make the vibration damper of load-carrying 4-6 people car, be provided with 4-6 suspension permanent magnet 8 in the nonmagnetic substance of vibration damper in the pipe 5 and vibration damper boundary dimension may diminish to be convenient to install, can satisfy mechanical strength etc., cost hangs down the requirement of practicality again.Make the vibration damper of general shipping lorry, be provided with 6-8 suspension permanent magnet 8 in the nonmagnetic substance of vibration damper in the pipe 5 and vibration damper boundary dimension may diminish to be convenient to install, can satisfy mechanical strength etc., cost hangs down the requirement of practicality again.
Permanent magnet according to the invention go up or upper/lower positions is: be above shock absorber piston permanent magnet 4 is placed on, location permanent magnet 2 is placed on following this general vehicle and uses the state of vibration damper to be defined as going up of permanent magnet of the present invention or upper/lower positions relation.
Advantage of the present invention: vibration damper of the present invention is simple in structure; Slider piston permanent magnet and suspension permanent magnet respectively with nonmagnetic substance in the slip surface structure of managing to manufacturing process require low; Processing cost is low, and the anti-usability of slip surface is significantly higher than hydraulic damper.The damping elasticity stable, the damping curve is stable, except that pressure, does not have other factors influence the elastic force of vibration damper and shakes curve, and working state is not influenced by extraneous factor such as electricity.Under the condition for identical heavy burden, cross section is less than the vibration damper with electromagnet, also less than spring damper; Be merely 0.8 centimetre like vibration damper circular permanent magnet diameter of the present invention, the body outer diameter is merely 1.5 centimetres of vibration dampers that just can be used as two people's motorcycles, and at least 3.0 centimetres of two present people's motorcycle hydraulic vibration damper body outer diameters are many to the consumption of steel.Because do not have accurate structure and simple in structure, not fragile and durable, it is also extremely convenient to keep in repair; But the hydraulic damper complex structure has the difficult maintenance problem of easy oil leakage; Spring damper is complex structure also, bad maintenance.A vibration damper weight of the present invention that is used for two people's motorcycles is merely 0.2 kilogram, and a hydraulic damper weight that is used for two people's motorcycles is 1.5 kilograms, and spring damper weight is 1.5 kilograms, and visible vibration damper of the present invention divides and shows lighter.
Produce damping function close with circuit coil to be to make full use of the vibration damper existing structure, to make vibration damper reduce vibrations, working curve is more steady, be used for vehicle damping and make the people who takes more comfortable.And the effect of damping function can be closed and how much the realizing of circuit coil institute pitch of the laps quantity with adjusting, reaches to make people's the most comfortable of taking.
Description of drawings
Fig. 1 is an agent structure schematic representation of the present invention;
1 is body, the 2nd among the figure, location permanent magnet, the 3rd, and pipe, the 6th in piston, the piston permanent magnet, the 5th, nonmagnetic substance, rigidity bearing tube, the 7th, ring type permanent magnet, the 8th, suspension permanent magnet, the 9th closes and circuit coil.
Embodiment
Embodiment 1, piston permanent magnet are south face to the location permanent magnet, and the suspension permanent magnet has only one side to have to close and levitated magnet being arranged and regulate the vibration damper of damping automatically of circuit coil
Preparation earlier has the vibration damper of levitated magnet; Like Fig. 1; Internal layer use inner diameter be 1.0 centimetres non-magnetic stainless steel pipe as managing 5 in the nonmagnetic substance, one in outside cover be mainly used in bear weight steel pipe as rigidity bearing tube 6, inside and outside two pipes being nested as the body 1 of vibration damper.The location permanent magnet 2 of body 1 one ends dress and rigidity bearing tube 6 fixing can not moving, the South Pole of location permanent magnet 2 magnetic poles is in body 1; One end of piston rod is fixed with piston permanent magnet 4; Piston rod and piston permanent magnet 4 are formed piston 3; Piston permanent magnet 4 one ends that have of piston 3 are placed in the interior pipe 5 of nonmagnetic substance of body 1; The arctic and the piston rod of piston permanent magnet 4 magnetic poles are fixed, and the South Pole is relative with location permanent magnet 2, and the part of piston rod is positioned at nonmagnetic substance pipe 5 outsides.
In nonmagnetic substance, take out piston 3 pipe 5; Is two outer diameters 0.9 centimetre; Thickness is that 1.0 centimetres cylindrical suspension permanent magnet 8 is placed in the interior pipe 5 of nonmagnetic substance; The method of putting is: pipe 5 is put into first suspension permanent magnet 8 in nonmagnetic substance earlier, puts into the magnet South Pole of first suspension permanent magnet 8 to the form of location permanent magnet 2 south pole orientation; Put into nonmagnetic substance pipe 5 to the magnet arctic of second suspension permanent magnet 8 to the form of first suspension permanent magnet 8 direction to the north pole again, the magnet south face that makes second suspension permanent magnet 8 is to piston permanent magnet 4 south face; Put into nonmagnetic substance pipe 5 to piston 3 at last, the South Pole of piston permanent magnet 4 magnetic poles is relative with the magnet South Pole of second suspension permanent magnet 8.The adjacent permanent magnet that makes four permanent magnets in the body 1 all is that identical magnet polarity is relative; Be between the adjacent permanent magnet to become, make it in the interior space of pipe that first suspension permanent magnet 8 and second suspension permanent magnet 8 be suspended in pipe 5 in the nonmagnetic substance between location permanent magnet 2 and the piston permanent magnet 4 with the state that repels each other and to fit.
Location permanent magnet 2, piston permanent magnet 4 and ring type permanent magnet 7 are neodymium iron boron NdFeB magnets, are that magnetic energy product is at least 318BHmax/KJm
-3Permanent magnet.
The vibration damper size of present embodiment and the number of suspension permanent magnet 8 are suitable as the vibration damper that motorcycle is used.
With the above-mentioned vibration damper pressure testing power that makes, after elementary sum attached requirement, increase was closed with circuit coil 9 and is prepared the vibration damper with automatic adjusting damping, and making step is following:
The use diameter is that 0.1 centimetre insulated paint copper conductor coiled largest outer diameter is 0.7 centimetre; Thickness is 0.3 centimetre the closing and circuit coil more than 9 of annular ring formula; Close vertically with body 1 center line with the ring surface of circuit coil 9 every circle coils, making every circle close the magnetic line of force that obtains induced current with circuit coil 9 all is same direction.Take out piston 3 and first suspension permanent magnet 8, second 8 three parts of suspension permanent magnet at vibration damper one end; All one is closed with circuit coil 9 respectively with polymeric adhesive on the surface, the South Pole of surface, South Pole of piston permanent magnet 4 and first suspension permanent magnet 8 bonding steady, from these two close with that of circuit coil 9 simultaneously observe close with circuit coil 9 around to being the counterclockwise direction winding.One is closed with circuit coil 9 with polymeric adhesive on the surface, the arctic of second suspension permanent magnet 8 bonding steady, from this close with that of circuit coil 9 simultaneously observe close with circuit coil 9 around to being the clockwise direction winding.Promptly
Piston is the South Pole, coil below, piston permanent magnet 4 and first suspension permanent magnet 8 south face close with circuit coil 9 counterclockwise direction around;
Piston is the South Pole, coil below, second suspension permanent magnet 8 north pole face close with circuit coil 9 clockwise directions around;
On magnetic pole strength close with 9 of circuit coils be one around to, promptly only be clockwise direction around or only be counterclockwise direction around; Close vertical with body 1 center line with the ring surface of circuit coil 9 every circle coils.
Then; First suspension permanent magnet 8 have close with that of circuit coil 9 towards the location permanent magnet 2 pack in the nonmagnetic substance in the pipe 5; Second suspension permanent magnet 8 arranged close with that north pole face towards first suspension permanent magnet 8 of circuit coil 9 again and pack in the nonmagnetic substance in the pipe 5, south face is arranged close with the piston permanent magnet 4 of circuit coil 9 at last and pack in the nonmagnetic substance in the pipe 5.Process levitated magnet and the automatic vibration damper of regulating damping.
Embodiment 2, piston permanent magnet are south face to the location permanent magnet, and suspension permanent magnet two sides all has to be closed and levitated magnet being arranged and regulate the vibration damper of damping automatically of circuit coil
On embodiment 1 basis, in nonmagnetic substance, manage taking-up piston 3, first suspension permanent magnet 8 and second suspension permanent magnet 8 in 5.All be stained with respectively at two magnetic pole strengths of two suspension permanent magnets 8 and close and circuit coil 9.
Bonding one of the magnet north pole face of first suspension permanent magnet 8 closes and circuit coil 9, from this close with that of circuit coil 9 simultaneously observe close with circuit coil 9 around to being the clockwise direction winding.Bonding one of the magnet south face of second suspension permanent magnet 8 is closed and circuit coil 9, from this close with that of circuit coil 9 simultaneously observe close with circuit coil 9 around to being the counterclockwise direction winding.Two magnet face of first suspension permanent magnet 8 and second suspension permanent magnet 8 are all had respectively can produce closing and circuit coil 9 of damping function.
Piston is the South Pole, coil in the above, first suspension permanent magnet 8 north pole faces close with circuit coil 9 counterclockwise direction around;
Piston is the South Pole, coil in the above, second suspension permanent magnet 8 south face close with circuit coil 9 clockwise directions around;
Close vertically with body 1 center line with the ring surface of circuit coil 9 every circle coils, making every circle close the magnetic line of force that obtains induced current with circuit coil 9 all is same direction.
Then; First suspension permanent magnet 8 South Pole have close with that of circuit coil 9 towards the location permanent magnet 2 pack in the nonmagnetic substance in the pipe 5; Second suspension permanent magnet 8 arranged close with that north pole face towards first suspension permanent magnet 8 of circuit coil 9 arctic again and pack in the nonmagnetic substance in the pipe 5; The back has south face to close with the piston permanent magnet 4 of circuit coil 9 and packs in the nonmagnetic substance in the pipe 5 again, and it is intrinsic on body 1 ring type permanent magnet 7 to wear away piston rod with ring type permanent magnet 7 at last.Process the stronger vibration damper that levitated magnet and automatic adjusting damping are arranged of damping and amortization
Embodiment 3, close with circuit coil can with levitated magnet being arranged and automatically regulates the vibration damper of damping of pipe friction in the nonmagnetic substance
On embodiment 1 basis, process 0.4 centimetre the structure of caving inward to the north pole face of the magnetic pole of the south face of the south face of piston permanent magnet 4 magnetic poles, first suspension permanent magnet 8 magnetic poles and second suspension permanent magnet 8.
Close and the sort of coil of circuit coil 9 without embodiment 1, but use the doubling plate that copper film layer is arranged on the insulated substrate instead, copper film layer is corroded into has the closed-loop path of a plurality of concentric rings coil Single-layer Windings on the same plane.In 0.4 centimetre of sunk structure of each permanent magnet, with the range upon range of applying of many closed-loop path coil Single-layer Windings, be fixed in the sunk structure, many Single-layer Windings are range upon range of in the sunk structure fits into one and closes and circuit coil 9.These three close with circuit coil 9 and embodiment 1 three close with circuit coil 9 around to identical.Can avoid like this closing with circuit coil 9 and nonmagnetic substance in pipe 5 contact, protection is closed and circuit coil 9, and manages 5 and contact with the suspension permanent magnet 8 of wear-resisting wiping and piston permanent magnet 4 and nonmagnetic substance are interior.
Close and circuit coil that embodiment 4, anti-piston are deviate from can also not regulated the vibration damper of damping with the levitated magnet that has of pipe friction in the nonmagnetic substance automatically
Like embodiment 3; And be fixed with middle porose ring type permanent magnet 7 at the body of putting into piston 31 that end; Ring type permanent magnet 7 is relative with magnetic pole with piston permanent magnet 4; In the present embodiment, ring type permanent magnet 7 is that the arctic is relative with the magnetic pole of 4 two of piston permanent magnets, can prevent that piston permanent magnet 4 one ends that have of piston 3 from deviating from from the hole of ring type permanent magnet 7; The piston rod of piston 3 passes the hole in the ring type permanent magnet 7, and piston 3 is managed in nonmagnetic substance in 5 in the hole with ring type permanent magnet 7 slidably.
Claims (7)
1. levitated magnet and the automatic vibration damper of regulating damping are arranged; Comprise body (1), body (1) one end internal fixation has location permanent magnet (2), is provided with piston mobile (3) in body (1) the other end; Piston (3) simultaneously is fixed with piston permanent magnet (4) with adjacent that of location permanent magnet (2); It is characterized in that: two-layer inside and outside body (1) is divided into, internal layer is a pipe (5) in the nonmagnetic substance, and skin is rigidity bearing tube (6); Manage in (5) in the nonmagnetic substance between location permanent magnet (2) and piston permanent magnet (4); At least be provided with one and location permanent magnet (2) and all discontiguous suspension permanent magnet of piston permanent magnet (4) (8); Suspension permanent magnet (8) is relative with magnetic pole with the adjacent surface of location permanent magnet (2); Suspension permanent magnet (8) is relative with magnetic pole with the adjacent surface of piston permanent magnet (4), and the adjacent surface between the adjacent difference suspension permanent magnet (8) is relative with magnetic pole; Suspension permanent magnet (8) along body (1) longitudinally thickness reach suspension permanent magnet (8) at least and in nonmagnetic substance, manage (5) the needed thickness that can not overturn;
One or two magnetic pole strength of suspension permanent magnet (8) is provided with and closes and circuit coil (9), on (8) magnetic pole strengths of suspension permanent magnet close and circuit coil (9) only be one around to, promptly only be clockwise direction around or only be counterclockwise direction around; Close vertical with body (1) center line with the ring surface of the every circle coil of circuit coil (9).
2. according to claim 1; It is characterized in that: the adjacent pole face of piston permanent magnet (4) and suspension permanent magnet (8) is provided with and closes and circuit coil (9), or the adjacent pole face of location permanent magnet (2) and suspension permanent magnet (8) is provided with and closes and circuit coil (9); One close and circuit coil (9) only be one around to, promptly only be clockwise direction around or only be counterclockwise direction around; Close vertical with body (1) center line with the ring surface of the every circle coil of circuit coil (9).
3. according to claim 1 and 2, it is characterized in that: be provided with close and suspension permanent magnet (8) magnetic pole strength of circuit coil (9) closes for the structure or be provided with of caving inward and piston permanent magnet (4) magnetic pole strength of circuit coil (9) closes for the structure or be provided with of caving inward and location permanent magnet (2) magnetic pole strength of circuit coil (9) for caving inward structure; Close and circuit coil (9) is embedded in the depression.
4. according to claim 3, it is characterized in that: that end of body (1) of putting into piston (3) is fixed with ring type permanent magnet (7), and ring type permanent magnet (7) is relative with magnetic pole with piston permanent magnet (4); Piston (3) passes the hole in the ring type permanent magnet (7), and piston (3) is managed in nonmagnetic substance in (5) in the hole with ring type permanent magnet (7) slidably.
5. according to claim 4, it is characterized in that: pipe (5) is a certain of copper material pipe or aluminum material pipe or non-magnetic stainless steel or engineering plastics material pipe in the nonmagnetic substance.
6. according to claim 5, it is characterized in that: location permanent magnet (2), piston permanent magnet (4) and ring type permanent magnet (7) are neodymium iron boron (NdFeB) magnets, are that magnetic energy product is at least 318 (BH) max/KJm
-3Permanent magnet.
7. according to claim 6; It is characterized in that: in the nonmagnetic substance of locating between permanent magnet (2) and the piston permanent magnet (4), in the pipe (5), be provided with 2-3 or 4-6 or 6-8 and location permanent magnet (2) and all discontiguous suspension permanent magnet of piston permanent magnet (4) (8); Same magnetic pole between the different suspension permanent magnets (8) is relative.
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| CN201110307216.9A CN102352904B (en) | 2011-10-12 | 2011-10-12 | Shock absorber with suspension magnets and automatic damping regulation function |
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| CN201110307216.9A CN102352904B (en) | 2011-10-12 | 2011-10-12 | Shock absorber with suspension magnets and automatic damping regulation function |
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| CN105221642A (en) * | 2015-10-16 | 2016-01-06 | 吴炳臣 | A kind of shock-dampening method, damping device and application thereof |
| JP2016505892A (en) * | 2012-12-19 | 2016-02-25 | ワーウィック ミュージック リミテッド | Fluid flow control valve |
| CN107419946A (en) * | 2017-06-23 | 2017-12-01 | 河北建筑工程学院 | A kind of architectural vibration-insulation device |
| CN109114147A (en) * | 2018-09-29 | 2019-01-01 | 西南交通大学 | Vibration absorber and traveling apparatus |
| CN114645585A (en) * | 2022-04-16 | 2022-06-21 | 北京工业大学 | Self-resetting damper based on permanent magnet repulsion and eddy current effect |
| CN114658127A (en) * | 2022-04-16 | 2022-06-24 | 北京工业大学 | Self-resetting damper based on permanent magnet repulsion force and U-shaped metal plate |
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| CN114645585A (en) * | 2022-04-16 | 2022-06-21 | 北京工业大学 | Self-resetting damper based on permanent magnet repulsion and eddy current effect |
| CN114658127A (en) * | 2022-04-16 | 2022-06-24 | 北京工业大学 | Self-resetting damper based on permanent magnet repulsion force and U-shaped metal plate |
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