CN201396393Y - Spring damping vibration isolator - Google Patents

Spring damping vibration isolator Download PDF

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Publication number
CN201396393Y
CN201396393Y CN2009200241534U CN200920024153U CN201396393Y CN 201396393 Y CN201396393 Y CN 201396393Y CN 2009200241534 U CN2009200241534 U CN 2009200241534U CN 200920024153 U CN200920024153 U CN 200920024153U CN 201396393 Y CN201396393 Y CN 201396393Y
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China
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spring
vibration isolator
support plate
lower support
damping
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CN2009200241534U
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尹学军
孔祥斐
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尹学军
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Abstract

The utility model relates to a vibration isolation spring damping vibration isolator which belongs to the field of vibration control. The spring damping vibration isolator comprises an upper support plate, an elastic element and a lower support plate, wherein the elastic element is arranged between the upper support plate and the lower support plate; a damping cylinder is arranged under the lowersupport plate; liquid damping materials are arranged in the damping cylinder; a moving body linked with the upper support plate or the lower support plate is also arranged in the damping cylinder; andin addition, the moving body is at least partially arranged in the liquid damping materials. Through singly arranging the damping cylinder and the moving body under the elastic element, the utility model greatly improves the system damping, overcomes the defects of space limitation in the damping cylinder in the prior art and limited contact area of the spring and the damping materials, enhancesthe sealing effect, greatly improves the water prevention performance of the vibration isolator, has the advantages of simple structure, stable performance and strong applicability, can be widely usedfor the vibration reduction in the fields of machinery, track traffic, bridges, building structures and the like, and has obvious economic and social benefits.

Description

Spring damping vibration isolator
Technical field
The utility model belongs to the vibration control field, is specifically related to a kind of vibration insolation means, particularly a kind of track float plate railway roadbed, Equipment Foundations, pipeline, building structure and other large-scale spring damping vibration isolator of member vibration isolation of floating of being widely used in.
Background technique
In recent years, because the raising of people's environmental consciousness, control is had higher requirement to the vibration and noise in the productive life, for with serious pollution fields of vibration and noise such as track traffic, large-scale forging and pressing, punching equipments, how vibration isolation becomes a major issue must considering in engineering project verification, the design and construction process especially.In existing vibration isolation technique and the product, the spring damping vibration isolator that a kind of spring and the integrated use of liquid damping material are arranged, as the vibration isolator that uses in the disclosed built-in steel spring floating slab among the patent ZL200410035441.1, steel spring and high viscosity damping material are arranged in the same resistance cylinders, shearing to damping material when utilizing the steel spring excited vibration realizes power consumption, thereby make vibration decay rapidly, thereby reach the purpose of control vibration and noise.This vibration isolator is because of its long service life, compact structure, and anti-vibration performance is stable etc., and advantage is extensively adopted in the industry.But, when the medium occasion of built-in steel spring floating slab is used, for avoiding placing the excessive weakening of reservation vias of vibration isolator to the plate intensity of floating, the vibration isolator radial dimension is the smaller the better, therefore the space in the damped cylinder is very limited, the real contact area of steel spring and damping material is very limited, so the damping force that system can provide is also very limited.In addition, owing to will reserve the compression volume of steel spring, so damped cylinder can not complete closed, utilizes rubber sleeve and clip that opening is connected more at present and seals, to prevent that the dust foreign material from entering or the damp liquid seepage.But practical application proves, because some application places Environmental Conditions are abominable, utilize rubber sleeve and clip to seal, can't satisfy the needs of waterproof, water inlet causes the phenomenon of damping material sex change or seepage to happen occasionally in the damped cylinder because reasons such as a large amount of rainfalls in short-term cause, the normal use that this has had a strong impact on vibration isolator not only influences vibration isolating effect, sometimes even form potential safety hazard.
On the other hand, pipeline prop up hang in the pipeline vibration isolator of extensive use, be commonly called as pipeline shock absorber bracket or pipeline vibration damping suspension bracket, though adopt damper in parallel with spring, the radial dimension compactness, but the damper that adopts is the hydraulic type damper so far entirely, the hydraulic type damper is generally by orifice restriction principle work, is provided with two and separated by piston, by the aperture pressure chambers communicating, be full of low viscosity in the chamber, withstand voltage heat-resisting hydraulic oil, piston motion makes two chambers produce pressure difference during work, two chamber alternations bear pressure, in the chamber air can not be arranged, and piston and piston rod all need strict sealing, under vibration condition, slipper seal is because rub the very fast inefficacy of meeting, and the seal failure rear damper just lost efficacy, so the life-span is short, need often maintenance, change sealing.It is long that existing market is badly in need of a kind of life-span, and non-maintaining substantially pipeline props up to hang uses spring damping vibration isolator, i.e. pipeline shock-absorbing spring damping support-hanger.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defective, provides a kind of system damping bigger, radial dimension compactness, long service life, non-maintaining or reduced-maintenance, and the stronger spring damping vibration isolator of applicability.
The utility model is to realize like this, comprise upper bearing plate, elastic element and lower support plate, elastic element is between last lower support plate, it is characterized in that below lower support plate, being provided with damped cylinder, the liquid damping material is set in the damped cylinder, also be provided with the kinetoplast that links with upper bearing plate or lower support plate in the damped cylinder, and kinetoplast to small part places the liquid damping material.
Described elastic element is helical steel springs, dish spring, rubber spring, rubber-metal complex spring, elastic polyurethane spring or pneumatic spring.Be the further damping of raising system, the quiet body that cooperates with kinetoplast also is set in the damped cylinder, as required, kinetoplast can be arranged to plate-like, ring-type, spherical, tubulose, bar-shaped or tabular, quiet body also can be arranged to plate-like, ring-type, spherical, tubulose, bar-shaped or tabular, and the selection of concrete shape should be a prerequisite not interfere between kinetoplast in the engagement process and quiet body.Flow and to disturb power in order to regulate damping liquid, further improve system damping, at kinetoplast or/and can also be provided with convex-concave, stupefied, gap, ring plate or through hole on the quiet body.
In confined conditions, net volume during the kinetoplast motion in the damped cylinder chamber changes thereupon, be the pressure in the control damped cylinder, prevent the damage of sealing configuration overburdening, the compensation body that elastic material is made is set in the damped cylinder chamber, compressed air suits in the air bag made from airtight elastic material for example, air bag.It is pointed out that the compensation body does not have specific shape, can be directly place in the damped cylinder chamber usefulness of Volume Changes, adjustment in-cylinder pressure by way of compensation as packing with elastic material
The utility model spring damping vibration isolator structure can be various, for example, spring can be pressure-proof spring or tension spring, and spring connects with upper bearing plate and lower support plate respectively at two ends up and down, kinetoplast links to each other with upper bearing plate by the connecting rod that runs through lower support plate, and lower support plate and damped cylinder link.For preventing that climb seepage and foreign material of liquid damping material from entering damped cylinder, can also be provided with slipper seal or elastic packing between connecting rod and lower support plate.Between damped cylinder and the lower support plate by fastening piece, welding, worm structure, riveted joint or bonding etc. mode is fixed to one another links to each other, can also between damped cylinder and lower support plate, seal element be set in case of necessity, as sealing gasket, stuffing box gland, seal ring, seal ring etc.In said structure, as a kind of special case, for improving stability, improve water-proof performance simultaneously, also guide sleeve can be set on lower support plate, connecting rod axially runs through the guide sleeve setting along guide sleeve, in case of necessity, slipper seal or elastic packing can also be set between guide sleeve and connecting rod.In addition, can also adopt following structure, spring is a pressure-proof spring, and kinetoplast and lower support plate become one or be fixedly connected, and connecting rod runs through upper bearing plate and links to each other with lower support plate, and upper bearing plate and damped cylinder link.In like manner, enter damped cylinder, between connecting rod and upper bearing plate, slipper seal or elastic packing can also be set for preventing climb seepage and foreign material of liquid damping material.
For ease of being connected with external structure, be provided with out associated device on the damped cylinder base plate of the utility model spring damping vibration isolator and upper bearing plate or the connecting rod, described out associated device is comprised flange, bolt, bolt hole, hanger, suspension hook or suspension ring.
In the utility model spring damping vibration isolator, elastic element can be provided with one, also can be provided with a plurality of.Wherein, when elastic element be one or more elastic elements self is folded mutually, during along damped cylinder central shaft arranged concentric, connecting rod passes from the center of elastic element; Perhaps, elastic element is provided with a plurality of, and elastic element ring dampens cylinder central shaft is symmetrical arranged.Such arrangement can guarantee effectively that spring damping vibration isolator is stressed evenly, and difficult generation is toppled, vibration isolator radial dimension compactness.
The utility model spring damping vibration isolator, by damped cylinder and kinetoplast are set below elastic element, the kinetoplast of utilization and upper bearing plate or lower support plate interlock increases the effective area of contact with damping liquid, improve system damping greatly, overcome existing spring damping vibration isolator owing to be subjected to the restriction in space in the damped cylinder, the defective that the real contact area of spring and damping material is very limited, and the easier sealing of damped cylinder have improved the water-proof performance of vibration isolator greatly.Its applicability is extremely strong, goes for supporting treating partiting polarization component, and the spring damping vibration isolator that is provided with hanger also can be used as pipeline shock-absorbing spring suspension and support and works under suspended state, and the life-span is long, has realized non-maintaining substantially.The utility model is simple in structure, vibration isolator radial dimension compactness, stable performance, applicability is strong, can be widely used in vibration damping, buffering, the power consumption in fields such as machinery, track traffic, bridge, building structure, it is abundant to be specially adapted to the floating ballast bed vibration isolator axial space that waits of subway, but the application places of radial space anxiety, its economic benefit and social benefit are very remarkable.
Description of drawings
Fig. 1 is one of spring damping vibration isolator structural representation of the present utility model.
Fig. 2 is two of a spring damping vibration isolator structural representation of the present utility model.
Fig. 3 is three of a spring damping vibration isolator structural representation of the present utility model.
Fig. 4 is four of a spring damping vibration isolator structural representation of the present utility model.
Fig. 5 is five of a spring damping vibration isolator structural representation of the present utility model.
Fig. 6 is six of a spring damping vibration isolator structural representation of the present utility model.
Fig. 7 is seven of a spring damping vibration isolator structural representation of the present utility model.
Fig. 8 is eight of a spring damping vibration isolator structural representation of the present utility model.
Embodiment
Embodiment one
The utility model spring damping vibration isolator as shown in Figure 1, comprise upper bearing plate 1, elastic element 3 and lower support plate 2, at this, elastic element 3 is a helical steel springs, the consideration of elastic element 3 location is provided with stop collar 8 respectively on upper and lower support plate for convenience, and damped cylinder 4 is arranged at the below of lower support plate 2, liquid damping material 5 is set in the damped cylinder 4, is full-bodied silicone oil herein.Also be provided with spherical kinetoplast 6 in the damped cylinder 4 with upper bearing plate 1 interlock, kinetoplast 6 parts are immersed in the liquid damping material 5, kinetoplast 6 links to each other with upper bearing plate 1 by the connecting rod 7 that runs through lower support plate 2, and utilizes fastening piece 9 to be fixed together, and wherein kinetoplast 6 fuses with connecting rod 7 welderings.By 10 fixed to one another linking to each other of fastening piece,, the sealing gasket 11 of rubber material is set between damped cylinder 4 and the lower support plate 2 between damped cylinder 4 and the lower support plate 2 for preventing the damping material seepage.For prevent that climb seepage and foreign material of liquid damping material from entering damped cylinder, also is provided with by curable high elasticity silicone structure glue and builds the elastic packing 12 that forms between connecting rod 7 and lower support plate 2.For avoiding water, stop collar 8 belows that are provided with on the lower support plate 2 are provided with weep hole 13.
During application, when extraneous excitation force acts on the utility model spring damping vibration isolator, helical steel springs 3 produces forced vibrations, and upper bearing plate 1, connecting rod 7 and kinetoplast 6 be vibration together thereupon.Because kinetoplast 6 is immersed in the liquid damping material 5, the liquid damping material can produce the viscous resistance opposite with direction of vibration and hinders its motion during kinetoplast 6 vibrations, thereby consumes vibrational energy, attenuation vibration.Because damped cylinder and kinetoplast are set separately below steel spring, the special kinetoplast that is provided with of utilization can increase the effective area of contact with damping liquid, improved system damping greatly, overcome existing spring damping vibration isolator owing to be subjected to the restriction in space in the damped cylinder, the defective that the real contact area of steel spring and damping material is very limited, therefore the damping ratio of system significantly is improved, and it is faster to consume extraneous hammer vibration energy, helps system's held stationary.In addition, owing to be provided with elastic packing 12 between connecting rod and the lower support plate 2, therefore can more effectively prevent that foreign matter and water from entering in the damped cylinder 4, particularly can effectively prevent because reason such as impeded drainage forms that vibration isolator that ponding causes is immersed in water in short-term and the vibration isolator water inlet that causes during heavy rain, avoided because sneak into the damping property change that water causes, Safety performance is better.
Vibration damper or spring hanger common in the utility model and the automobile hanging are compared, though all be that spring is in parallel on mechanics with damping, following obvious difference are arranged:
Damper in the automobile hanging is a hydraulic type, two hydraulic chamber that are communicated with by aperture or gap are arranged, need the pressure difference of two chambers during work, two chamber alternations bear pressure, in the chamber air can not be arranged, piston and piston rod all need strict sealing, and after the seal failure, damper just lost efficacy, damping liquid viscosity is low, piston rod has only axial one degree of freedom, and the transverse elasticity of spring is suppressed, and only axially has elasticity, bearing capacity and damping.
The damper that adopts in the utility model is an adhesion-type, has only a damping chamber, and air is generally arranged in the chamber, in the vibration isolator working procedure not by pressure, damping liquid viscosity is very high, and chamber is full of damping liquid, utilizes damping liquid adhesion to kinetoplast when kinetoplast moves to produce damping force.In addition, the effect that elastic packing is set between its lower support plate and connecting rod is dust and water protection, seal element is pressure-bearing not, irrelevant with the service behaviour of vibration isolator, if under the situation of Environmental Conditions dry cleansing, even do not take any seal approach, vibration isolator still can proper functioning, does not also influence anti-vibration performance.Vibration isolator upper bearing plate and piston rod can have 2-6 degrees of freedom, laterally and be flapped toward good elasticity, bearing capacity and damping are also arranged.At this, what specify is, described elastic packing 12 is to utilize coagulable colloid, the structural silicone adhesive of mentioning among the embodiment for example, or the rubber elastomeric material is made, the surface of contact of itself and connecting rod and lower support plate utilizes means such as Bond or sulfuration closely to link into an integrated entity, but all has better elastic owing to constitute colloidal materials or the rubber elastomeric material that elastic packing adopted, therefore can realize to relatively move within the specific limits between connecting rod and lower support plate, therefore it both can realize seal action, relatively moving between connecting rod and the lower support plate when not influencing work again, be fit to have between connecting rod and the support plate occasion of small size relative movement, its structural principle and traditional slipper seal have essential distinction, and it is easier to implement, and cost is also cheaper.
Based on know-why of the present utility model, kinetoplast can also be arranged to plate-like, ring-type, tabular, tubulose or other shapes such as bar-shaped, elastic element can also adopt dish spring, rubber spring, rubber-metal complex spring, elastic polyurethane spring or pneumatic spring, also can realize good effect.In addition, this example is that example describes so that an elastic element 3 to be set only, in actual applications elastic element also can be provided with by mode in parallel or series connection a plurality of, to satisfy the needs of different bearer power.
In this example, elastic element is one, and connecting rod passes from the center of elastic element, and for keeping stable, elastic element should place the spring damping vibration isolator center, and its central shaft overlaps with the damped cylinder central shaft as far as possible, and connecting rod passes from the center of elastic element.Certainly, elastic element also can be provided with a plurality of.When a plurality of elastic element is set, if a plurality of elastic elements self is folded mutually, along damped cylinder central shaft arranged concentric, then connecting rod passes from the center of elastic element; If it is a plurality of that elastic element is provided with, and when being arranged in parallel, elastic element answers ring dampens cylinder central shaft to be symmetrical arranged.Such arrangement can guarantee effectively that spring damping vibration isolator is stressed evenly, and difficult generation is toppled.
Embodiment two
The utility model spring damping vibration isolator as shown in Figure 2, be with embodiment one difference, liquid damping material 5 is a modified emulsifying asphalt, in order to increase system damping, two tubulose kinetoplasts 6 of integrated setting in the spring damping vibration isolator, in addition, welding is provided with a quiet body 20 of the tubulose that cooperates with kinetoplast 6 in damped cylinder 4 bottoms, the useful area of liquid damping material 5 actings is sheared in kinetoplast and quiet body relative movement when having increased spring damping vibration isolator work so greatly, therefore system damping is bigger, it is faster to consume energy, and vibration isolating effect is better.In order further to increase system damping, to be convenient to simultaneously when vibration at high speed, liquid damping material 5 circulates smoothly, on kinetoplast 6 and quiet body 20, also is respectively arranged with through hole 22 and through hole 21.
In addition, because the net volume during kinetoplast 6 motions in damped cylinder 4 chambers changes thereupon, be the pressure in the control damped cylinder, prevent the damage of sealing configuration overburdening, damping cavity is indoor to be provided with a plurality of compensation bodies 30, described compensation body 30 is air bags made from airtight elastic material, is filled with pressurized air in the air bag.The form of compensation body also can be varied, except that air bag, also can be compressible of making of elastic material, ball, ellipsoid etc.
Based on know-why of the present utility model, quiet body can also be arranged to plate-like, ring-type, shape such as tabular, bar-shaped according to the needs that cooperate with kinetoplast, also can realize good effect, in addition, quiet body is the same with kinetoplast also can be provided with a plurality of, and both also can use difform combination respectively when being provided with, as when two kinetoplasts are set, the tubular structure kinetoplast is used in the outside, the centre is provided with club shaped structure kinetoplast etc., quiet body also is so, as long as can guarantee the mutual noninterference mutually when cooperating of kinetoplast and quiet body.
In order further to increase system damping, to remove the through hole is set, can also kinetoplast and quiet body be provided with structures such as convex-concave, stupefied, gap or ring plate, can realize good effect.
Embodiment three
The utility model spring damping vibration isolator as shown in Figure 3, be with embodiment one difference, liquid damping material 5 is full-bodied first class silicone oil, elastic element 3 adopts the metal stamper spring, in order to simplify connecting between lower support plate 2 and the damped cylinder 4, between is provided with worm structure and is connected with each other, and realizes sealing.In order to strengthen leading role and sealing effect, guide sleeve 16 is set on lower support plate 2, between the two ends up and down of guide sleeve 16 and the connecting rod 7 slipper seal 12 is set respectively.Kinetoplast 6 is arranged to tubulose, and in order to increase system damping, the liquid damping material passes through smoothly when being convenient to kinetoplast 6 motions simultaneously, and some through holes 14 are set on kinetoplast 6.In addition, for the ease of dismounting and change, a nut 17 is fixed in welding on upper bearing plate 1, and corresponding connecting rod 7 upper ends are provided with worm structure, utilize between the two to be threaded.
The spring damping vibration isolator of this structure, owing to be provided with guide sleeve 16, guiding is more stable when therefore working, and water-proof performance is more reliable.Except through hole is set, also can some gap be set from the edge on the kinetoplast 6, also can play identical effect.
In the present embodiment, the restriction owing to guide sleeve of piston rod can only be moved vertically, is suitable for the footy occasion of transverse elasticity and damping.
In addition, lower support plate is connected with the fastening piece that the connecting mode between the damped cylinder is mentioned in embodiment or worm structure connects, can also utilize modes such as welding, riveted joint to connect, also can play good effect.Spring described in the utility model can also be a helical steel springs except the metal stamper spring, can well realize the function of vibration isolation.
Embodiment four
The utility model spring damping vibration isolator as shown in Figure 4 is that with embodiment one difference elastic element 3 adopts rubber springs, and three plate-like kinetoplasts 6 are set altogether.In addition, guide sleeve 16 is set on lower support plate 2, the lateral stiffness of rubber spring generally a little less than, by setting the height of guide sleeve 16, can also regulate the lateral stiffness of rubber spring.Because rubber spring has well stopped dust around, so sealing no longer is set between guide sleeve and the connecting rod, simultaneously, because the aperture position of guide sleeve 16 is higher, the more difficult water that pours into of the damped cylinder of the utility model spring damping vibration isolator, water-proof performance has also obtained large increase.
Certainly, in this example, use rubber-metal complex spring instead of rubber spring as elastic element, or utilize the dish spring, helical steel springs also can realize same effect as elastic element.
Embodiment five
The utility model spring damping vibration isolator as shown in Figure 5 is the rubber-metal complex spring that elastic element adopts helical steel springs 3a and rubber spring 3b combination to make with embodiment four difference.Connecting rod 7 upper ends and upper bearing plate 1 are integrally welded, and connecting rod 7 lower ends utilize flange 40 and plate-like kinetoplast 6 to link into an integrated entity.
Owing to comprise helical steel springs in the elastic element, so rigidity of spring damping vibration isolator, especially lateral stiffness has obtained remarkable enhancing, bearing capacity also significantly improves, and owing to also comprise rubber spring simultaneously, therefore can realize dust reduction capability well, not need to be provided with again sealing between guide sleeve and the connecting rod.Simultaneously, because the aperture position of guide sleeve 16 is higher, the more difficult water that pours into of the damped cylinder of the utility model spring damping vibration isolator, water-proof performance has also obtained large increase.
Embodiment six
The utility model spring damping vibration isolator as shown in Figure 6 is that with embodiment one difference elastic element 3 comprises symmetrically arranged two helical steel springs of ring dampens cylinder central axis.
Certainly, in actual applications, elastic element 3 also can be provided with three, four, even more, but in order to guarantee the spring damping vibration isolator stability in when work, elastic element answers ring dampens cylinder central shaft to be symmetrical arranged.
In the above-described embodiments, only describe with the technological scheme that a connecting rod is set, if the spring damping vibration isolator size is bigger, be that the damped cylinder size is when big, a thicker steel pipe also can be set, damped cylinder can certainly be decomposed and be arranged to the connecting rod cooperating that a plurality of sub-damped cylinders are provided with its top respectively, also can realize same function.
Embodiment seven
The utility model spring damping vibration isolator as shown in Figure 7, be with embodiment's two differences, on stop collar 8, through hole is set, and nut 42 is set in the through hole interior welds, spring utilize double-screw bolt 43 that elastic element 3 and upper bearing plate 1 and lower support plate 2 are firmly linked into an integrated entity, so that can bear pulling force.And damped cylinder base plate and upper bearing plate are provided with out associated device, and described is suspension ring 41 to out associated device.
When using, utilize suspension ring 41 that the utility model spring damping vibration isolator is linked to each other with pipeline and fixed structure (all not shown among the figure), make the utility model spring damping vibration isolator be in suspended state as pipeline shock-absorbing spring suspension and support.When vibration takes place pipeline, drive the vibration together thereupon of upper bearing plate 1, connecting rod 7 and kinetoplast 6.Because kinetoplast 6 is immersed in the liquid damping material 5, the liquid damping material can produce the viscous resistance opposite with direction of vibration and hinders its motion during kinetoplast 6 vibrations, thereby consumes vibrational energy, attenuation vibration.Certainly, application of the present utility model is not limited to pipeline shock-absorbing spring suspension and support, also is applicable to the vibration damping of suspending type TMD.
The damper that adopts in the utility model is an adhesion-type, has only a damping chamber, and air is generally arranged in the chamber, in the vibration isolator working procedure not by pressure, damping liquid viscosity is very high, and chamber is full of damping liquid, utilizes damping liquid adhesion to kinetoplast when kinetoplast moves to produce damping force.In addition, the effect that elastic packing is set between its lower support plate and connecting rod is dust and water protection, seal element is pressure-bearing not, irrelevant with the service behaviour of vibration isolator, under the situation of Environmental Conditions dry cleansing, can not take any seal approach, vibration isolator still can proper functioning, does not also influence anti-vibration performance.Because do not need strict sealing, so the utility model spring damping vibration isolator longer service life, realized non-maintaining substantially.
Except that using suspension ring, what be provided with on damped cylinder base plate and upper bearing plate or the connecting rod can also be flange, bolt, bolt hole, hanger or suspension hook to out associated device, can realize same function.
Based on know-why of the present utility model, kinetoplast can also be arranged to plate-like, ring-type, other shapes such as tabular, spherical or bar-shaped, elastic element can also adopt dish spring, rubber spring, rubber-metal complex spring, elastic polyurethane spring or pneumatic spring, also can realize good effect.In addition, this example is that example describes so that an elastic element 3 to be set only, in actual applications elastic element also can be provided with by mode in parallel or series connection a plurality of, to satisfy the needs of different bearer power.
In this example, elastic element is one, and connecting rod passes from the center of elastic element, and for keeping stable, elastic element should place the spring damping vibration isolator center, and its central shaft overlaps with the damped cylinder central shaft as far as possible, and connecting rod passes from the center of elastic element.Certainly, elastic element also can be provided with a plurality of.When a plurality of elastic element is set, if a plurality of elastic elements self is folded mutually, along damped cylinder central shaft arranged concentric, then connecting rod passes from the center of elastic element; If it is a plurality of that elastic element is provided with, and when being arranged in parallel, elastic element answers ring dampens cylinder central shaft to be symmetrical arranged.Such arrangement can guarantee effectively that spring damping vibration isolator is stressed evenly, and difficult generation is toppled.
Embodiment eight
The utility model spring damping vibration isolator as shown in Figure 8, comprise upper bearing plate 1, elastic element 3 and lower support plate 2, at this, elastic element 3 is a helical steel springs, the consideration of elastic element 3 location is provided with stop collar 8 respectively on upper and lower support plate for convenience, and damped cylinder 4 is positioned at the below of lower support plate 2, liquid damping material 5 is set in the damped cylinder 4, is full-bodied silicone oil herein.Also be provided with the tubulose kinetoplast 6 that becomes one with lower support plate 2 in the damped cylinder 4, kinetoplast 6 parts are immersed in the liquid damping material 5, and kinetoplast 6 welding are arranged on the lower support plate 2, and connecting rod 7 runs through upper bearing plate 1 and connects with lower support plate 2 welding.Between damped cylinder 4 and the upper bearing plate 1 by connecting with the outer sleeve 50 and fastening piece 10 indirect securement of upper bearing plate integrated setting.For prevent that climb seepage and foreign material of liquid damping material from entering damped cylinder, also is provided with by curable high elasticity silicone structure glue and builds the elastic packing 12 that forms between connecting rod 7 and upper bearing plate 1.Certainly, also slipper seal can be set between connecting rod 7 and the upper bearing plate 1.And be provided with out associated device on damped cylinder base plate and the connecting rod, described out associated device be respectively suspension ring 41 and suspension ring 44.
When using, utilize suspension ring 41 that the utility model spring damping vibration isolator is linked to each other with pipeline and fixed structure (all not shown among the figure), make the utility model spring damping vibration isolator be in suspended state as pipeline shock-absorbing spring suspension and support.When vibration takes place pipeline, drive the vibration together thereupon of lower support plate 2, connecting rod 7 and kinetoplast 6.Because kinetoplast 6 is immersed in the liquid damping material 5, the liquid damping material can produce the viscous resistance opposite with direction of vibration and hinders its motion during kinetoplast 6 vibrations, thereby consumes vibrational energy, attenuation vibration.Certainly, application of the present utility model is not limited to pipeline shock-absorbing spring suspension and support.
Equally, based on know-why of the present utility model, kinetoplast can also be arranged to plate-like, ring-type, other shapes such as tabular, spherical or bar-shaped, elastic element can also adopt dish spring, rubber spring, rubber-metal complex spring, elastic polyurethane spring or pneumatic spring, also can realize good effect.In addition, this example is that example describes so that an elastic element 3 to be set only, in actual applications elastic element also can be provided with by mode in parallel or series connection a plurality of, to satisfy the needs of different bearer power.
Because the utility model spring damping vibration isolator is provided with the purpose of elastic packing or slipper seal between connecting rod and upper bearing plate, lower support plate or guide sleeve be for water proof and dust proof, so, better in Environmental Conditions, when not having waterproof requirement, also elastic packing or slipper seal can be set, only block, prevent from that dust from falling to get final product with dustcloth.Therefore,, can not comprise elastic packing or slipper seal, also can realize identical vibration isolation function as Fig. 1, Fig. 2, the described spring damping vibration isolator of Fig. 3.In addition, the Placement of connecting rod and upper bearing plate and kinetoplast can be varied, except that the connection of the fastening piece described in the embodiment, worm structure connection and welding manner, can also be hinged other modes that waits, in this explanation for example that differs.

Claims (17)

1, a kind of spring damping vibration isolator, comprise upper bearing plate, elastic element and lower support plate, elastic element is between last lower support plate, it is characterized in that below lower support plate, being provided with damped cylinder, the liquid damping material is set in the damped cylinder, also be provided with the kinetoplast that links with upper bearing plate or lower support plate in the damped cylinder, and kinetoplast to small part places the liquid damping material.
2, spring damping vibration isolator according to claim 1 is characterized in that the quiet body that cooperates with kinetoplast also is set in the damped cylinder, does not interfere between kinetoplast and quiet body.
3, spring damping vibration isolator according to claim 1 and 2 is characterized in that kinetoplast or/and quiet body is tubulose, ring-type, spherical, plate-like, bar-shaped or tabular.
4, spring damping vibration isolator according to claim 3 is characterized in that kinetoplast or/and quiet body is provided with concavo-convex, through hole, gap, stupefied or ring plate.
5, spring damping vibration isolator according to claim 1 is characterized in that being provided with the compensation body that elastic material is made in the damped cylinder chamber.
6, spring damping vibration isolator according to claim 5, it is characterized in that compensating body is the air bag that airtight elastic material is made, compressed air suits in the air bag.
7, spring damping vibration isolator according to claim 1 is characterized in that elastic element is helical steel springs, dish spring, rubber spring, rubber-metal complex spring, elastic polyurethane spring or pneumatic spring.
8, spring damping vibration isolator according to claim 1, it is characterized in that spring is pressure-proof spring or tension spring, spring connects with upper bearing plate and lower support plate respectively at two ends up and down, and kinetoplast links to each other with upper bearing plate by the connecting rod that runs through lower support plate, and lower support plate and damped cylinder link.
9, spring damping vibration isolator according to claim 8 is characterized in that between damped cylinder and the lower support plate by fastening piece, welding, worm structure, riveted joint or bonding fixed to one another connection of mode.
10, spring damping vibration isolator according to claim 8 is characterized in that between damped cylinder and the lower support plate seal element being set.
11, spring damping vibration isolator according to claim 8 is characterized in that being provided with on the lower support plate guide sleeve, and connecting rod axially runs through the guide sleeve setting along guide sleeve.
12, spring damping vibration isolator according to claim 11 is characterized in that being provided with between guide sleeve and the connecting rod slipper seal or elastic packing.
13, spring damping vibration isolator according to claim 1 is characterized in that spring is a pressure-proof spring, and kinetoplast and lower support plate become one or be fixedly connected, and connecting rod runs through upper bearing plate and links to each other with lower support plate, and upper bearing plate and damped cylinder link.
14, according to Claim 8 or 13 described spring damping vibration isolators, it is characterized in that being provided with out associated device on the damped cylinder base plate of vibration isolator and upper bearing plate or the connecting rod, out associated device is comprised flange, bolt, bolt hole, hanger, suspension hook or suspension ring.
15, according to Claim 8 or 13 described spring damping vibration isolators, it is characterized in that being provided with between connecting rod and upper bearing plate or lower support plate slipper seal or elastic packing.
16, spring damping vibration isolator according to claim 1, it is characterized in that elastic element be one or more elastic elements self is folded mutually, along damped cylinder central shaft arranged concentric, connecting rod passes from the center of elastic element.
17, spring damping vibration isolator according to claim 1 it is characterized in that elastic element is a plurality of, and elastic element ring dampens cylinder central shaft is symmetrical arranged.
CN2009200241534U 2009-03-19 2009-03-19 Spring damping vibration isolator Expired - Lifetime CN201396393Y (en)

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