CN206361080U - Vibrating isolation system with backpressure device - Google Patents
Vibrating isolation system with backpressure device Download PDFInfo
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- CN206361080U CN206361080U CN201621475815.6U CN201621475815U CN206361080U CN 206361080 U CN206361080 U CN 206361080U CN 201621475815 U CN201621475815 U CN 201621475815U CN 206361080 U CN206361080 U CN 206361080U
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- isolation system
- connector
- backpressure device
- counterweight
- vibrating isolation
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Abstract
The utility model is related to a kind of vibrating isolation system with backpressure device, belongs to civil engineering structure antivibration area, influence of the vibration for control machine equipment to the vibration of external environment influence or mitigation external environment condition to machinery equipment.The utility model includes counterweight stand and vibration isolator, vibration isolator is located between substrate and counterweight stand, counterweight stand is supported on vibration isolator, elastic supporting element is provided with vibration isolator, elastic supporting element is at least made up of metal coil spring, also include backpressure device, backpressure device includes back-pressure flexible member and connector, back-pressure flexible member one end is acted on counterweight stand, the other end is acted on connector, connector is connected with substrate or vibration isolator base, and back-pressure flexible member is in opposite direction to the supporting force of counterweight stand to the force direction and elastic supporting element of counterweight stand.Compared with prior art, intrinsic frequency of the present utility model is easily controllable, and vibration isolating effect is more guaranteed.
Description
Technical field
The utility model belongs to civil engineering structure antivibration area, and in particular to a kind of for control machine equipment
Vibrate on external environment influence or mitigate the vibrating isolation system that the vibration of external environment condition influences on machinery equipment.
Background technology
In recent years, the continuous propulsion upgraded with CHINESE INDUSTRIES, various rotation equipments be widely used in industrial production and
In urban construction field, such as various generating sets, water pump, blower fan, compressor etc., these equipment are produced in operation process
Vibration and the governing problem of noise also increasingly obtain the concern of people.Using gas power plant machine power cooling blower system as
Example, its motor, reduction box, blade produce driving frequency very abundant, and vibration vibration decay in building structure is small, easily excites
Building element resonates, and structural vibration is changed into airborne noise to external radiation, influences normal study, work, the rest of surrounding resident
And sleep.At present, to control such vibration and noise problem, many principles using vibration isolation are placed a device on Elastic Isolator,
Vibrating isolation system is constituted with flexible member using equipment and the quality of equipment base, and typically coordinates damping element, to equipment operation
During the vibration that produces consumed and isolated, so as to reduce the vibration effect to external environment condition.Elasticity is used as by steel spring
The vibration isolator of element composition, it is extensive due to having the advantages that bearing capacity is big, vibration isolation efficiency is high, performance is stable, service life is long
Applied to various high-grade vibration isolation occasions.
When vibration feasible value control is tighter, the vibration isolation efficiency of apparatus for rotating vibrating isolation system and the vibration velocity of machinery base
(or vibration amplitude or vibration acceleration) can form conflict, if effectiveness in vibration suppression is up to standard, and often vibration velocity will surpass
Mark, vice versa；At this time only have one section of very narrow frequency range to ensure that both are simultaneously up to standard.In such vibrating isolation system
In, how to realize that vibrating isolation system intrinsic frequency is stable, be the key for ensureing vibration isolating effect, by calculating the vibration isolation that analysis is designed
The accurate realization of system frequency is just extremely important, and tends to occur deviation in practice.
By the practice and exploration up to several years, numerous heavy constructions, it was found that wherein rule：Vibrating isolation system is actually intrinsic
Frequency is often more relatively low than Theoretical Design, even and if spring carries out rigidity actual measurement one by one and well-chosen is combined into calculating analysis and set
The theoretical value rigidity needed is counted, can not all be avoided.
By studying and testing repeatedly, reason has been eventually found：Multiple steel are often used in such vibrating isolation system simultaneously
Multiple steel spring members may be included in spring vibration-isolator, each steel spring vibration isolator again, are missed in various mismachining tolerances and assembling
Under the cumulative function of difference, the dead load that weight of equipment is provided, which can not often be realized, allows whole or even most of steel spring members to enter
The linear change stage that born external force is directly proportional to the compression displacement of itself, or even after equipment operation applies dynamic section of lotus,
When especially vibrating isolation system intrinsic frequency is higher (such as more than 10Hz), the amplitude of mass vibration is smaller, is still likely to occur phase
When a part of steel spring member is in the working stage of nonlinear change completely or partially, so as to cause vibrating isolation system global stiffness ratio
Theoretical value is relatively low, intrinsic frequency is relatively low, therefore is disturbed in same under power effect, and vibration velocity and amplitude are bigger than normal, so as to cause to shake
Dynamic value is exceeded.
In addition, for the severe plant equipment of some application environments, such as ship power equipment, due to causing when stormy waves is big
Hull is acutely rocked, and its power-equipment is also inevitably produced and rocked, therefore the vibrating isolation system of power-equipment will not only be born
Pressure loading, it is necessary to certain pull-up load can be born, it is no to ensure the safety of power-equipment and the stabilization of vibrating isolation system
Then the isolation mounting in power-equipment or vibrating isolation system just has the danger toppled.Equally, floating ballast bed there is also this for short prefabricated board
Class problem, when rail vehicle from one end enters fashionable, due to the lighter in weight of short prefabricated board, can produce seesaw effect, i.e., short pre-
Be present the trend being upturned in the other end of making sheet, such as can not effectively control, then the vibration isolator of side is tilted positioned at short prefabricated board
The situation of insufficient pressure occurs, the displacement of short prefabricated board is easily caused or the problems such as vibration isolator elastic element topples, to daily
Operation brings potential safety hazard.To ensure safety, conventional practice is to use rigid limit, and it inevitably forms vibration short circuit,
Greatly reduce the effect of vibration and noise reduction of vibrating isolation system.
In summary, market more becomes accurately and with load in the urgent need to providing a kind of system stiffness with theoretical calculation compared with
Change and stablize relatively, intrinsic frequency and vibration isolating effect also more reliable and more stable vibrating isolation system.
Utility model content
The purpose of this utility model is to solve the above problems there is provided a kind of system frequency is easily controllable, vibration isolation effect
The more guaranteed vibrating isolation system with backpressure device of fruit.
The utility model is achieved in that including counterweight stand and vibration isolator with the vibrating isolation system of backpressure device, every
The device that shakes is located between substrate and counterweight stand, and counterweight stand is supported on vibration isolator, and elastic supporting element, institute are provided with vibration isolator
State elastic supporting element to be at least made up of metal coil spring, it is characterised in that also including backpressure device, backpressure device includes anti-
Compression elasticity element and connector, back-pressure flexible member one end are acted on counterweight stand, and the other end is acted on connector, connection
Part is connected with substrate or vibration isolator base, and back-pressure flexible member is to the force direction and elastic supporting element of counterweight stand
Supporting force to counterweight stand is in opposite direction.
The concrete form of the back-pressure flexible member is varied, for example, it includes at least one extension spring, stretches bullet
Spring one end is connected with connector, and other end mounting is acted on counterweight stand, and extension spring is to the active force of counterweight stand
Direction and elastic supporting element are in opposite direction to the supporting force of counterweight stand；Or, back-pressure flexible member is pressed including at least one
Contracting spring, compression spring one end back-pressure is acted on counterweight stand, and the other end is acted on connector, connector and substrate or every
The device base that shakes is connected, and compression spring is to the force direction of counterweight stand and the branch to counterweight stand of elastic supporting element
Load is in opposite direction.The compression spring is evenly arranged when setting two and the above around connector.For including compression bullet
Equal pressing plate can also be included in the back-pressure flexible member of spring, back-pressure flexible member, equal pressing plate is placed in the end of compression spring, connects
Part coordinates with equal pressing plate, and compression spring back-pressure is acted on counterweight stand.It should be noted that the back-pressure flexible member can
To be the extension spring that metal coil spring is constituted or spring, metal that metal coil spring, high polymer material are made
The compression spring of the forms such as the complex spring that disc spring or high polymer material are constituted with metal, can be according to actual needs in application
From.In addition, installing for convenience, installation passage can be set on counterweight stand, connector is arranged in installation passage.
In addition, it is spacing for the ease of back-pressure flexible member is carried out, can also be on counterweight stand or/and connector provided with back-pressure elasticity
The centering limited block of element.
The concrete form of the connector can also be varied, including screw rod, hook, the otic placode with mount hole, extension
Ring, the screw rod with adpting flange, detain connector and detain connector etc. with adpting flange, as long as can realize reliable
Connection, can realize good effect.
Damping unit is included in vibration isolating effect, vibration isolator or/and backpressure device to improve, the damping unit includes hydraulic pressure
A variety of tools such as formula damping unit, viscous damping devices, electric eddy-current damping device, magnetorheological damping device and viscoelastic damping device
Body form, as long as system damping can be effectively improved, realizes the purpose of quick consumption vibrational energy, can be applied to this practicality new
Among type.
Counterweight stand described in the utility model includes plate or framework knot that armored concrete or metal material are made
Structure.Reserved through hole can be set on counterweight stand, and back-pressure flexible member and elastic supporting element are arranged in reserved through hole, in advance
Stay and bearing member is provided with through hole, elastic supporting element is supported on bearing member, central through hole, central through hole are left in the middle part of bearing member
Assurance of Size elastic supporting element can pass through, back-pressure flexible member is acted also on bearing member and by bearing member
Act on counterweight stand；Or back-pressure flexible member and elastic supporting element are integrated among a housing, housing is with matching somebody with somebody
Weight stand is solidly fixed, and enclosure interior is provided with bearing member, and elastic supporting element is supported on bearing member, is left in the middle part of bearing member
Central through hole, the Assurance of Size elastic supporting element of central through hole can be passed through, and back-pressure flexible member acts also on load
Acted on part and by bearing member on counterweight stand.
Both can be single bullet it is pointed out that being based on the back-pressure flexible member in described above, the utility model
The groups of springs that spring or multiple springs are constituted, can also be the spring damping isolation mounting that spring is constituted with damping unit.
In addition, constitute metal coil spring in elastic supporting element described in the utility model, typically helical steel springs, certainly,
It can be complex spring that helical steel springs are collectively formed with rubber or elastane etc..
The utility model carries the vibrating isolation system of backpressure device, by setting up backpressure device in vibrating isolation system, using anti-
The back-pressure active force that pressure device is provided, realizes the pretension of elastic supporting element, makes whole or at least most of elastic supporting element
The linear change stage being directly proportional into born external force to the compression displacement of itself, so as to eliminate or partially remove mismachining tolerance
And influence of the rigging error to system frequency, make the intrinsic frequency excursion of system smaller, it is ensured that the utility model band
The intrinsic frequency parameter for having the vibrating isolation system of backpressure device is in reasonable controllable levels all the time, and the vibration isolating effect of system can also be obtained
To fully ensuring that.The result through continuing to test shows：If load continues increasing, more than certain number on spring vibration-isolator
Value, the rigidity of spring vibration-isolator will become steady, and intrinsic frequency will be stablized, and vibration velocity will be up to standard.Due to being additionally arranged back-pressure
Device, the system stiffness of vibrating isolation system of the utility model with backpressure device is more accurate compared with theoretical calculation and with load
Change is stablized relatively, and its intrinsic frequency is also more reliable and more stable with vibration isolating effect.The utility model carries the vibration isolation of backpressure device
The security of system more preferably, is particularly suitable for use in the more severe machinery equipment of working environment, such as ship power equipment, when strong wind is big
When wave effect pontoon acutely rocks, cause ship power equipment also inevitably to produce and rock, now, rely primarily on this reality
Downward pressure load is born with the vibration isolator in the new vibrating isolation system with backpressure device, bearing pull-up using backpressure device carries
Lotus, it is ensured that the safety of power-equipment and the stabilization of vibrating isolation system, the vibrating isolation system for overcoming spot ship power-equipment are held
By upward pulling force load-carrying ability it is not enough, be difficult to reply load change when the characterisitic parameter such as system frequency is unstable, security
Not enough problem, therefore, vibrating isolation system of the utility model with backpressure device intrinsic frequency in the course of the work and vibration isolation
Effect is also more reliable and more stable.It is to be particularly noted that due to anti-in vibrating isolation system of the utility model with backpressure device
Pressure device is also provided simultaneously with elastic spacing function, can be prevented effectively from conventional rigid it is spacing caused by vibration short circuit problem, can be with
The anti-vibration performance of vibration isolator is given full play to, therefore greatly improves final vibration and noise reducing level, great number tested data shows, its
Final effect of vibration and noise reduction can improve 20% even more high.To achieve the above object, in general, bullet is compressed in backpressure device
The precommpression stroke of spring should be greater than the 110% of the maximum deflection downwards of counterweight stand under working condition.The counterweight stand is most
Big deflection downwards is calculated since the pretension equilbrium position of counterweight stand, the deformation of expanding with heat and contract with cold comprising counterweight stand.
The utility model carries the simple in construction of the vibrating isolation system of backpressure device, and vibration and noise level are low, with vibration damping
The advantages of anti-acoustic capability stabilization, vibration isolation efficiency height, service life length, good security, it can be widely applied to various ship powers
In the elastic vibration isolation foundation engineering of equipment, industrial apparatus for rotating or rail traffic vehicles operation, before wide market application
Scape.
Brief description of the drawings
Fig. 1 is one of the structural representation of vibrating isolation system of the utility model with backpressure device.
Fig. 2 for Fig. 1 A-A to sectional view.
Fig. 3 is the two of the structural representation of vibrating isolation system of the utility model with backpressure device.
Fig. 4 is the three of the structural representation of vibrating isolation system of the utility model with backpressure device.
Fig. 5 is the four of the structural representation of vibrating isolation system of the utility model with backpressure device.
Fig. 6 is the five of the structural representation of vibrating isolation system of the utility model with backpressure device.
Fig. 7 is the six of the structural representation of vibrating isolation system of the utility model with backpressure device.
Fig. 8 is the seven of the structural representation of vibrating isolation system of the utility model with backpressure device.
Fig. 9 is the eight of the structural representation of vibrating isolation system of the utility model with backpressure device.
Figure 10 is the nine of the structural representation of vibrating isolation system of the utility model with backpressure device.
Embodiment
Embodiment one
The utility model carries the vibrating isolation system of backpressure device, including counterweight stand 1 and vibration isolator as shown in Figure 1 and Figure 2,
The counterweight stand 1 is one block of platen that Reinforced Concrete Materials is made, and the vibration isolator is that elastic supporting element 2 and damping are filled
3 spring damping vibration isolators collectively constituted are put, wherein, elastic supporting element 2 includes four helical steel springs, and damping unit 3 has
Body is viscous damping devices, and vibration isolator is located between substrate 7 and counterweight stand 1, and counterweight stand 1 is supported on vibration isolator；In addition,
Also include backpressure device, backpressure device includes back-pressure flexible member 4 and connector 5, wherein, back-pressure flexible member 4 draws for metal
Stretch spring, connector 5 is the otic placode with mount hole, connector 5 is fixed in substrate 7, the one end of back-pressure flexible member 4 by with
The preset integral mounting of metal anchorage 6 of counterweight stand 1 is acted on counterweight stand 1, and other end mounting acts on connector 5
On, and back-pressure flexible member 4 is to the force direction and supporting force of the elastic supporting element 2 to counterweight stand 1 of counterweight stand 1
In the opposite direction.
The utility model carries the vibrating isolation system of backpressure device, by setting up backpressure device in vibrating isolation system, using anti-
The back-pressure active force that pressure device is provided, realizes the pretension of elastic supporting element, makes whole or at least most of elastic supporting element
The linear change stage being directly proportional into born external force to the compression displacement of itself, so as to eliminate or partially remove mismachining tolerance
And influence of the rigging error to system frequency, make the intrinsic frequency excursion of system smaller, it is ensured that the utility model band
The intrinsic frequency parameter for having the vibrating isolation system of backpressure device is in reasonable controllable levels all the time, and the vibration isolating effect of system can also be obtained
To fully ensuring that.The result through continuing to test shows：If load continues increasing, more than certain number on spring vibration-isolator
Value, the rigidity of spring vibration-isolator will become steady, and intrinsic frequency will be stablized, and vibration velocity will be up to standard.Due to being additionally arranged back-pressure
Device, the system stiffness of vibrating isolation system of the utility model with backpressure device is more accurate compared with theoretical calculation and with load
Change is stablized relatively, and its intrinsic frequency is also more reliable and more stable with vibration isolating effect.The utility model carries the vibration isolation of backpressure device
The security of system more preferably, is particularly suitable for use in the more severe machinery equipment of working environment, such as ship power equipment, when strong wind is big
When wave effect pontoon acutely rocks, cause ship power equipment also inevitably to produce and rock, now, rely primarily on this reality
Downward pressure load is born with the vibration isolator in the new vibrating isolation system with backpressure device, bearing pull-up using backpressure device carries
Lotus, it is ensured that the safety of power-equipment and the stabilization of vibrating isolation system, the vibrating isolation system for overcoming spot ship power-equipment are held
By upward pulling force load-carrying ability it is not enough, be difficult to reply load change when the characterisitic parameter such as system frequency is unstable, security
Not enough problem, therefore, vibrating isolation system of the utility model with backpressure device intrinsic frequency in the course of the work and vibration isolation
Effect is also more reliable and more stable.It is to be particularly noted that due to anti-in vibrating isolation system of the utility model with backpressure device
Pressure device is also provided simultaneously with elastic spacing function, can be prevented effectively from conventional rigid it is spacing caused by vibration short circuit problem, can be with
The anti-vibration performance of vibration isolator is given full play to, therefore greatly improves final vibration and noise reducing level, great number tested data shows, its
Final effect of vibration and noise reduction can improve 20% even more high.Using when, industrial equipment or track structure are fixedly installed on
On counterweight stand 1.
It should be noted that in the utility model, damping unit in vibration isolator is filled except already mentioned viscous damping
Beyond putting, fluid pressure type damping unit, electric eddy-current damping device, magnetorheological damping device and viscoelastic damping device etc. can also be
Other kinds of damping unit, as long as system damping can be effectively improved, realizes the purpose of quick consumption vibrational energy, can answer
Among the utility model；In addition, the form of connector can also be varied, in addition to the otic placode with mount hole, also may be used
To be other attachment structures such as hook, link, it is reliably connected as long as can realize, can act as identical effect；In addition, constituting
The metal stretching spring of back-pressure flexible member 4, can be specifically the extension spring that the materials such as spring steel or stainless steel are made；Again
Have, in the utility model, the metal coil spring in elastic supporting element is primarily referred to as helical steel springs, it is of course also possible to be
The complex spring that helical steel springs are collectively formed with rubber or elastane；It may also be noted that the counterweight platform
Frame can also be the frame structure that Reinforced Concrete Materials is made in addition to it can be plate that Reinforced Concrete Materials is made,
Either plate for being made of metal material and frame structure etc., and the shape of counterweight stand can design as needed, not
In one fixation this example diagram like that, it is the regular shapes such as rectangle.Above technical scheme is all based on the utility model technical principle
Simple change, be only described herein with word, all the utility model requirement protection domain among.Described above is same
Other embodiment of the present utility model is also applied for, is described in this together.
The utility model carries the simple in construction of the vibrating isolation system of backpressure device, and vibration and noise level are low, with vibration damping
The advantages of anti-acoustic capability stabilization, vibration isolation efficiency height, service life length, good security, it can be widely applied to various ship powers
In the elastic vibration isolation foundation engineering of equipment, industrial apparatus for rotating or rail traffic vehicles operation, before wide market application
Scape.
Embodiment two
The utility model as shown in Figure 3 carries the vibrating isolation system of backpressure device, and the difference with embodiment one is, it is described every
The spring vibration isolation device that the device that shakes only is made up of elastic supporting element 2, elastic supporting element 2 is specially four helical steel springs；This
Outside, in the backpressure device of this example, connector 5 is to detain connector with adpting flange 13, and this is detained connector and welded by channel-section steel
Connect and form, adpting flange 13 is fixed together with metal anchorage 14 pre-buried in substrate 7 using fastener 15, realizing will even
Fitting 5 is fixed in substrate 7；In addition, back-pressure flexible member is by equal pressing plate 9, two compression springs 30 and common group of damping unit 8
Into wherein equal pressing plate is made up of steel plate, compression spring 30 is helical steel springs, and damping unit 8 is specially fluid pressure type damping unit.
Wherein, equal pressing plate 9 is placed in the end of compression spring 30, and connector 5 coordinates with equal pressing plate 9, acts on the one end of compression spring 30
On connector 5, other end back-pressure is acted on counterweight stand 1, and compression spring 30 to the force direction of counterweight stand 1 with
Elastic supporting element 2 is in opposite direction to the supporting force of counterweight stand 1.In order to ensure that back-pressure flexible member will not be in use
Equal pressing plate 9 and connector 5, are welded and fixed together by generation play after installing.
Vibrating isolation system with backpressure device described in this example has to be filled with the utility model described in embodiment one with back-pressure
The same advantage of the vibrating isolation system put, is not repeated herein.To realize above-mentioned advantage, in general, bullet is compressed in backpressure device
The precommpression stroke of spring should be greater than the 110% of the maximum deflection downwards of counterweight stand under working condition.The counterweight stand is most
Big deflection downwards is calculated since the pretension equilbrium position of counterweight stand, the deformation of expanding with heat and contract with cold comprising counterweight stand.Need
Illustrate that the compression spring in the back-pressure flexible member in addition to helical steel springs, can also be the metal of other materials
What spring, metal disc spring or the high polymer material and metal that helical spring, metal coil spring, high polymer material are made were constituted answers
Spring is closed, the high polymer material includes elastic caoutchouc, elastic polyurethane or elastoplast etc., can be according to reality in application
Need to select；, can be with addition to already mentioned fluid pressure type damping unit in addition, the damping unit included in backpressure device
It is a variety of concrete forms such as viscous damping devices, electric eddy-current damping device, magnetorheological damping device and viscoelastic damping device, only
System damping can be effectively improved, the purpose of quick consumption vibrational energy is realized, can be applied among the utility model；Separately
Outside, in this example, due to containing damping unit in back-pressure flexible member, if the need for system damping being met, vibration isolator
In damping unit can not be still further set, in order to the maintaining in later stage, certainly, based on this technical principle, if
Necessity, damping unit can also be set simultaneously in backpressure device and vibration isolator.It is new that above technical scheme is all based on this practicality
The simple change of type technical principle, is only described with word herein, all among the protection domain of the utility model requirement.On
State it is bright can equally be well applied to other embodiment of the present utility model, be described in this together.
Embodiment three
The utility model as shown in Figure 4 carries the vibrating isolation system of backpressure device, is with the difference of embodiment two, matches somebody with somebody
The both sides of weight stand 1 are provided with boss 31；The vibration isolator is the spring that multiple elastic supporting elements 2 are collectively constituted with damping unit 3
Damping isolation device, elastic supporting element 2 is specially helical steel springs, and damping unit 3 is specially viscous damping devices；Back-pressure is filled
In putting, connector 5 is made up of I-steel, and the lower end of connector 5 is fixed in substrate 7, and back-pressure flexible member 4 is helical steel springs
The compression spring of composition.The one end of back-pressure flexible member 4 is acted on connector 5, and other end back-pressure is acted in counterweight stand 1
On boss 31.Back-pressure elasticity is additionally provided with unexpected play, connector 5 to prevent back-pressure flexible member 4 from occurring in use
The centering limited block 10 of element 4.
Compared with embodiment two, the advantage of technical scheme described in this example is, due to being provided with damping dress in vibration isolator
Put, damping unit is no longer set in back-pressure flexible member 4, in addition, by setting boss 31 on counterweight stand 1, back-pressure is filled
The side for being arranged on counterweight stand is put, its more compact structure is not take up the space on counterweight stand top.It should be noted that convex
Platform 31 both can continuously be set on counterweight stand 1, can also locally be set on counterweight stand.
Example IV
The utility model as shown in Figure 5 carries the vibrating isolation system of backpressure device, is with the difference of embodiment one, matches somebody with somebody
Weight stand 1 is provided with installation passage 12；In backpressure device, connector 5 is the screw rod that one end is fixed in substrate 7, back-pressure elasticity
Element 4 vulcanizes the compression spring that fixed equal pressing plate 9 is collectively formed by rubber spring and its two ends, and connector 5 is arranged on peace
Fill in passage 12, it runs through counterweight stand 1 and back-pressure flexible member 4, the locking nut 11 set using screw tip makes back-pressure
The one end of flexible member 4 is acted on connector 5, and other end back-pressure is acted on the top surface of counterweight stand 1, and compression spring pair
The force direction of counterweight stand and the supporting force to counterweight stand of elastic supporting element are in opposite direction.
Compared with embodiment one, in technical scheme described in this example, due to constituting the rubber spring of back-pressure flexible member in itself
With good damping characteristic, therefore it can also be considered as a kind of damping unit simultaneously.In theory, if rubber spring can be carried
For enough dampings, extra again in vibration isolator damping unit can not also be set in the utility model.
Embodiment five
The utility model as shown in Figure 6 carries the vibrating isolation system of backpressure device, is with the difference of example IV, matches somebody with somebody
The both sides of weight stand 1 are provided with projection 31；In backpressure device, connector 5 is the screw rod with adpting flange 13, will using fastener 15
Adpting flange 13 is fixed together with metal anchorage 14 pre-buried in substrate 7, and connector 5 is fixed in substrate 7 by realization, instead
Compression elasticity element 4 is the compression spring that helical steel springs are constituted, and the top of wherein compression spring is additionally provided with equal pressing plate 9, connector 5
Coordinate with equal pressing plate 9, the one end of back-pressure flexible member 4 is acted on connector 5 by the locking nut 11 set using screw tip
On, other end back-pressure is acted on the boss 31 in counterweight stand 1.To prevent back-pressure flexible member 4 from occurring in use
The centering limited block 10 of back-pressure flexible member 4 is further respectively had on unexpected play, boss 31 and pressing plate 9.
Compared with example IV, by setting boss 31 on counterweight stand 1, backpressure device is arranged on counterweight stand
Sideways, its more compact structure, is not take up the space on counterweight stand top；Can further, since being used between connector 5 and substrate 7
The fixed form of fractionation, the maintenance in later stage, which is changed, also more to be facilitated.
Embodiment six
The utility model as shown in Figure 7 carries the vibrating isolation system of backpressure device, is with the difference of example IV, instead
Compression elasticity element and vibration isolator are integrated among a housing 16, wherein, the elastic supporting element 2 in vibration isolator is by a spiral
Steel spring is constituted, and back-pressure flexible member is collectively constituted by four helical steel springs 36, two damping units 8 and pressing plate 9, described
Damping unit 8 is specially viscoelastic damping device, and connector 5 is passed through from the center of elastic supporting element, four helical steel springs
36 are evenly arranged in around connector 5.Housing 16 is solidly fixed with counterweight stand 1, and the inside of housing 16 is provided with bearing member 18, institute
State and central through hole is provided with the middle part of bearing member, the size of central through hole should ensure that vibration isolator can be passed through, vibration isolator is by adjusting
High backing plate 19 is supported on bearing member 18, by connector 5, back-pressure flexible member is acted also on bearing member 18 and is passed through
Bearing member is acted on counterweight stand 1, and back-pressure flexible member is to the force direction and elastic supporting element of counterweight stand
Supporting force to counterweight stand is in opposite direction.
In technical scheme described in this example, damping unit can also be set up in vibration isolator, for example, can utilize spiral steel bomb
Spring constitutes complex spring together with rubber or elastane, may be suitable in the utility model, also in this practicality
Among the protection domain of new requirement.Compression spring can also set two in technical principle based on this example, back-pressure flexible member
It is individual, three, five it is even more many, when the quantity of compression spring is more than two, it is preferred that by compression spring around connector
Even arrangement.
Compared with example IV, technical scheme biggest advantage is that described in this example, can be pulled down at any time on connector 5
Locking nut 11, opening along the top of housing 16 of back-pressure flexible member and elastic supporting element is taken out, so protected in maintenance
Facilitated very much when foster；Further, since in technical scheme described in this example, vibration isolator and backpressure device are all disposed within housing 16, its
Any upper space of counterweight stand is not take up, therefore structure is extremely compact, space availability ratio is high.Using when, industry is set
Standby or track structure is fixed on counterweight stand 1, such as shown in Fig. 7, and track structure 17 is arranged on into counterweight stand 1
On, you can to constitute a kind of floating ballast bed structure.
Embodiment seven
The utility model as shown in Figure 8 carries the vibrating isolation system of backpressure device, is with the difference of embodiment six, matches somebody with somebody
Reserved through hole 20 is set on weight stand, and back-pressure flexible member and vibration isolator are arranged in reserved through hole, wherein, the bullet in vibration isolator
Property supporting member is made up of a helical steel springs 2, and back-pressure flexible member is by a helical steel springs 36, multiple damping units 8
And pressing plate 9 is collectively constituted, the damping unit 8 is specially fluid pressure type damping unit, and bearing member 18 is provided with reserved through hole 20,
Bearing member 18 is to be provided with central through hole, the chi of central through hole in the middle part of the boss with the integrated setting of counterweight stand 1, the bearing member
Very little to should ensure that vibration isolator be passed through, elastic supporting element is supported on bearing member 18, passes through connector 5, back-pressure elasticity
Element is acted also on bearing member 18 and acted on by bearing member 18 on counterweight stand 1.
Using when, apparatus for rotating or track structure are fixed on counterweight stand.Technical scheme described in this example is except tool
Have outside all advantages of embodiment six, due to the direct integrated setting bearing member 18 on counterweight stand in this example, be related to element
Less, structure is simpler, advantageously reduces cost, improves product service life.Certainly, based on the technical principle described in this example,
Bearing member can also be made using materials such as steel plate, stainless steels to be fixedly installed on again in the reserved through hole of counterweight stand, can also
Same effect is played, also among the protection domain of the utility model requirement.
Embodiment eight
The utility model as shown in Figure 9 carries the vibrating isolation system of backpressure device, is with the difference of embodiment seven, matches somebody with somebody
The elastic supporting element 2 in groove 41, vibration isolator that is mounted laterally that both sides are correspondingly arranged for accommodating vibration isolator on weight stand 1 is spiral
The complex spring that steel spring and elastane are collectively constituted, elastic supporting element 2 is supported on the lower surface of bearing member 18,
So that counterweight stand is supported on elastic supporting element；In backpressure device, connector 5 is the link being fixed in substrate 7, instead
Compression elasticity element 4 is made up of steel spiral stretching spring, and one end of steel spiral stretching spring is articulated on connector 5, and the other end is hung
It is connected on the pulling force regulation link 33 set on baffle plate 34, the baffle plate 34 is located at the upper surface of bearing member 18, back-pressure elasticity member
Part makees power on bearing member 18 by the back-pressure of baffle plate 34, and then acts on counterweight stand 1, and steel spiral stretching spring to
The force direction of weight stand 1 is opposite to the force direction of counterweight stand with elastic supporting element.
Different from embodiment seven, back-pressure flexible member employs extension spring in this example, in addition, being used as elastic supporting element
Complex spring in elastane elasticity can be not only provided, damping can also be provided, therefore also can be considered damping
Device.Great advantage of the technical scheme described in this example compared with embodiment seven be, due to back-pressure flexible member and vibration isolator all
The lower section of bearing member is arranged on, therefore required spatial altitude is smaller, it is relatively thin that the thickness of counterweight stand can be set, favorably
In saving space.Taken further, since vibration isolator can enter luggage from the side of counterweight stand, the perforate at the center of bearing member 8 is only needed
It can realize that the dress of back-pressure flexible member 4 takes, therefore its bore size can be substantially reduced, and advantageously ensure that counterweight platform
The intensity of frame.Certainly, can also be by elastic supporting element and extension spring based on the technical principle described in this example and embodiment six
Be integrated in a housing, housing is solidly fixed with counterweight stand, elastic supporting element and extension spring respectively with housing
The supporting member of setting coordinates, and realizes the supporting to counterweight stand and back-pressure, can also realize good effect, only be given herein with word
Explanation is given, also among the protection domain of the utility model requirement.
Embodiment nine
The utility model as shown in Figure 10 carries the vibrating isolation system of backpressure device, and the difference with embodiment six is, described
Substrate is specially the steel frame 37 that the surface of ship deck 38 is fixedly installed；In addition, counterweight stand 1 is specially steel plate and section bar welding
The frame structure assembled, housing 16 is welded and fixed integrally with frame structure；In addition, the lower end of connector 5 be fixed on every
Shake on the base 39 of device, base 39 is fixedly linked by fastener 40 with steel frame 37.
Compared with embodiment six, in technical scheme described in this example, connector 5 can together take out with vibration isolator and be repaired
Change, it is very convenient.
When wind and waves effect pontoon acutely rocks, cause ship power equipment also inevitably to produce and rock,
Now, the vibration isolator relied primarily in vibrating isolation system of the utility model with backpressure device bears downward pressure load, utilizes
Backpressure device bears to pull up load, it is ensured that the safety of power-equipment and the stabilization of vibrating isolation system, overcomes spot ship and moves
The vibrating isolation system of power equipment bears upward pulling force load-carrying ability deficiency, is difficult to the characteristic such as system frequency during reply load change
The problem that parameter is unstable, security is not enough, therefore, vibrating isolation system of the utility model with backpressure device is in the course of the work
Intrinsic frequency and vibration isolating effect it is also more reliable and more stable.It is to be particularly noted that because the utility model carries backpressure device
Vibrating isolation system in backpressure device be also provided simultaneously with elastic spacing function, can be prevented effectively from conventional rigid it is spacing caused by shake
Dynamic short circuit problem, can give full play to the anti-vibration performance of vibration isolator, therefore greatly improve final vibration and noise reducing level, largely
Test data shows that its final effect of vibration and noise reduction can improve 20% even more high.
Embodiment of the present utility model is primarily to convenient understand technical principle of the present utility model, it is not limited on
The content of embodiment record is stated, the technology contents that above-described embodiment is recorded can also carry out cross-reference, based on the utility model
Technical principle, those skilled in the art can re-start combination to technical scheme described in above-described embodiment or utilize similar technique
Some of which element is simply replaced, as long as based on technical principle of the present utility model, all in the utility model requirement
Among protection domain.
Claims (15)
1. a kind of vibrating isolation system with backpressure device, including counterweight stand and vibration isolator, vibration isolator are located at substrate and counterweight platform
Between frame, counterweight stand is supported on vibration isolator, in vibration isolator be provided with elastic supporting element, the elastic supporting element at least by
Metal coil spring is constituted, it is characterised in that also including backpressure device, and backpressure device includes back-pressure flexible member and connector, instead
Compression elasticity element one end is acted on counterweight stand, and the other end is acted on connector, connector and substrate or vibration isolator base
It is connected, and force direction and elastic supporting element supporting force side to counterweight stand of the back-pressure flexible member to counterweight stand
To opposite.
2. the vibrating isolation system according to claim 1 with backpressure device, it is characterised in that the back-pressure flexible member bag
At least one extension spring is included, extension spring one end is connected with connector, other end mounting is acted on counterweight stand, and is drawn
The force direction and elastic supporting element for stretching spring to counterweight stand are in opposite direction to the supporting force of counterweight stand.
3. the vibrating isolation system according to claim 1 with backpressure device, it is characterised in that back-pressure flexible member is included extremely
A few compression spring, compression spring one end back-pressure is acted on counterweight stand, and the other end is acted on connector, connector with
Substrate or vibration isolator base are connected, and compression spring to the force direction of counterweight stand and elastic supporting element to counterweight
The supporting force of stand is in opposite direction.
4. the vibrating isolation system according to claim 3 with backpressure device, it is characterised in that the compression spring includes gold
The complex spring that spring, metal disc spring or the high polymer material and metal that category helical spring, high polymer material are made are constituted.
5. the vibrating isolation system according to claim 3 with backpressure device, it is characterised in that compression spring in backpressure device
Precommpression stroke be more than the 110% of the maximum deflection downwards of counterweight stand under working condition.
6. the vibrating isolation system according to claim 3 with backpressure device, it is characterised in that the compression spring sets two
It is evenly arranged during the individual and above around connector.
7. the vibrating isolation system according to claim 3 with backpressure device, it is characterised in that counterweight stand is provided with installation
Passage, connector is arranged in installation passage.
8. the vibrating isolation system according to claim 3 with backpressure device, it is characterised in that back-pressure flexible member also includes
Equal pressing plate, equal pressing plate is placed in the end of compression spring, and connector coordinates with equal pressing plate, and compression spring back-pressure is acted on into counterweight platform
On frame.
9. the vibrating isolation system according to claim 3 with backpressure device, it is characterised in that counterweight stand or/and connector
It is provided with the centering limited block of back-pressure flexible member.
10. the vibrating isolation system with backpressure device according to claim 1,2 or 3, it is characterised in that connector includes spiral shell
Bar, hook, the otic placode with mount hole, link, the screw rod with adpting flange, detain connector and buckleing with adpting flange
Give as security connector.
11. the vibrating isolation system with backpressure device according to claim 1,2 or 3, it is characterised in that the vibration isolator or/
With in backpressure device be provided with damping unit.
12. the vibrating isolation system according to claim 11 with backpressure device, it is characterised in that the damping unit includes
Fluid pressure type damping unit, viscous damping devices, electric eddy-current damping device, magnetorheological damping device and viscoelastic damping device.
13. the vibrating isolation system with backpressure device according to claim 1,2 or 3, it is characterised in that counterweight stand includes
Plate or frame structure that armored concrete or metal material are made.
14. the vibrating isolation system with backpressure device according to claim 1,2 or 3, it is characterised in that set on counterweight stand
Reserved through hole is put, back-pressure flexible member and elastic supporting element are arranged in reserved through hole, bearing member is provided with reserved through hole, is held
Central through hole is left in the middle part of power part, the Assurance of Size elastic supporting element of central through hole can be passed through, elastic supporting element
It is supported on bearing member, back-pressure flexible member is acted also on bearing member and acted on by bearing member on counterweight stand.
15. the vibrating isolation system with backpressure device according to claim 1,2 or 3, it is characterised in that back-pressure flexible member
It is integrated in elastic supporting element among a housing, housing is solidly fixed with counterweight stand, enclosure interior is provided with bearing member,
Central through hole is left in the middle part of bearing member, the Assurance of Size elastic supporting element of central through hole can be passed through, elastic bearing member
Part is supported on bearing member, and back-pressure flexible member is acted also on bearing member and acted on by bearing member on counterweight stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621475815.6U CN206361080U (en) | 2016-12-30 | 2016-12-30 | Vibrating isolation system with backpressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621475815.6U CN206361080U (en) | 2016-12-30 | 2016-12-30 | Vibrating isolation system with backpressure device |
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| Publication Number | Publication Date |
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| CN206361080U true CN206361080U (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621475815.6U Withdrawn - After Issue CN206361080U (en) | 2016-12-30 | 2016-12-30 | Vibrating isolation system with backpressure device |
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| CN (1) | CN206361080U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523586A (en) * | 2016-12-30 | 2017-03-22 | 青岛科而泰环境控制技术有限公司 | Vibration isolation system with back pressing devices |
| CN108397510A (en) * | 2018-03-28 | 2018-08-14 | 深圳市德达康健股份有限公司 | A kind of vibration absorber of oxygenerator compressor |
| CN109931361A (en) * | 2018-12-28 | 2019-06-25 | 中国机械工业集团有限公司 | A kind of profile-followed adjustable high-efficiency spring damping and vibration isolating device of large fan assembled |
| CN110671462A (en) * | 2019-09-10 | 2020-01-10 | 浙江师范大学 | Combined type buffering energy-absorbing device based on magnetorheological fluid |
| JP2020164008A (en) * | 2019-03-29 | 2020-10-08 | 川崎重工業株式会社 | Supporting structure for underwater vehicle |
| CN114250878A (en) * | 2021-11-16 | 2022-03-29 | 株洲时代新材料科技股份有限公司 | Vibration isolator, adjusting method thereof and spring replacing method thereof |
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2016
- 2016-12-30 CN CN201621475815.6U patent/CN206361080U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523586A (en) * | 2016-12-30 | 2017-03-22 | 青岛科而泰环境控制技术有限公司 | Vibration isolation system with back pressing devices |
| CN108397510A (en) * | 2018-03-28 | 2018-08-14 | 深圳市德达康健股份有限公司 | A kind of vibration absorber of oxygenerator compressor |
| CN108397510B (en) * | 2018-03-28 | 2022-03-08 | 深圳市德达医疗科技集团有限公司 | Vibration damper of compressor for oxygenerator |
| CN109931361A (en) * | 2018-12-28 | 2019-06-25 | 中国机械工业集团有限公司 | A kind of profile-followed adjustable high-efficiency spring damping and vibration isolating device of large fan assembled |
| JP2020164008A (en) * | 2019-03-29 | 2020-10-08 | 川崎重工業株式会社 | Supporting structure for underwater vehicle |
| WO2020203533A1 (en) * | 2019-03-29 | 2020-10-08 | 川崎重工業株式会社 | Underwater vehicle support structure |
| CN110671462A (en) * | 2019-09-10 | 2020-01-10 | 浙江师范大学 | Combined type buffering energy-absorbing device based on magnetorheological fluid |
| CN110671462B (en) * | 2019-09-10 | 2021-10-08 | 浙江师范大学 | Combined type buffering energy-absorbing device based on magnetorheological fluid |
| CN114250878A (en) * | 2021-11-16 | 2022-03-29 | 株洲时代新材料科技股份有限公司 | Vibration isolator, adjusting method thereof and spring replacing method thereof |
| CN114250878B (en) * | 2021-11-16 | 2023-04-07 | 株洲时代新材料科技股份有限公司 | Vibration isolator, adjusting method thereof and spring replacing method thereof |
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