CN206015936U - Unbiased rotating rod type high-frequency tuning mass bumper - Google Patents

Unbiased rotating rod type high-frequency tuning mass bumper Download PDF

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Publication number
CN206015936U
CN206015936U CN201620909764.7U CN201620909764U CN206015936U CN 206015936 U CN206015936 U CN 206015936U CN 201620909764 U CN201620909764 U CN 201620909764U CN 206015936 U CN206015936 U CN 206015936U
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China
Prior art keywords
mass
frequency
elastic rod
elastic
damping
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CN201620909764.7U
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Chinese (zh)
Inventor
尹学军
谭文
刘兴龙
邹东
刘浪静
黄红东
刘焕欣
党红玲
刘铁民
王建立
孔祥斐
王建
高星亮
陈常福
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QINGZHOU CREATE HEAVY INDUSTRY Co Ltd
QINGDAO CREATE ENVIRONMENT CONTROL TECHNOLOGY CO LTD
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QINGZHOU CREATE HEAVY INDUSTRY Co Ltd
QINGDAO CREATE ENVIRONMENT CONTROL TECHNOLOGY CO LTD
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Abstract

The utility model is related to unbiased rotating rod type high-frequency tuning mass bumper, belongs to civil engineering structure antivibration area.Which solve big, the applicability strong, high cost and the problems such as accurate frequency modulation cannot be realized that takes up room of prior art presence.The utility model includes mass, flexible member and damping element, the flexible member includes at least two elastic rods, the two ends of elastic rod are bearing on support respectively and mass is connected with elastic rod, or one end of elastic rod is bearing on support and the other end of elastic rod is connected with mass, the barycenter or center of mass made a concerted effort at least in vertical component by mass of Dynamic- Recovery power when whole elastic rods work, damping element is set directly at elastic rod surface or damping element is connected with mass.The utility model applicability is higher, and cost performance is higher, can be widely applied to the isostructural dither control of subgrade of metro, and market application foreground is very wide.

Description

Unbiased rotating rod type high-frequency tuning mass bumper
Technical field
The utility model belongs to civil engineering structure antivibration area, and in particular to a kind of high for controlling building structure The tuning mass bumper of frequency vibration.
Background technology
A large amount of engineering practices prove that tuning mass bumper (also has title tuned mass damper in document, or claims quality to adjust Humorous shock absorber, herein also abbreviation TMD) it is a kind of effective vibration control apparatus, its intrinsic frequency is adjusted to be close to master The natural frequency of vibration of structure, is then fitted in main structure.When main structure is subject to exciting force interference that vibration occurs, quality is caused to adjust The resonance of humorous shock absorber, reacts on structure itself using the vibrating inertia force of tuning quality, so as to offset exciting force, reaches and subtracts The purpose of little structural response.Want the damping effect for playing mass tuning damper to greatest extent, it is desirable to which its intrinsic frequency will be use up May be consistent with the natural frequency of vibration of main structure, otherwise the effectiveness in vibration suppression of TMD will decline to a great extent.Such as Patent No. 200410087664.2 Chinese patent disclose such a oriented vertical adjustable tuning mass bumper, can be used for controlling The resonance that the building structure such as overpass processed or harbour trestle causes under the effect of people's row energization.But find in application process, existing There is the tuning mass bumper for directly supporting mass using helical steel springs to be difficult to the dither suitable for more than 15Hz, former Because being, according to rational mechanics general knowledge, the global stiffness of the intrinsic frequency of such tuning mass bumper and whole springs and all Shown in the relation such as formula (1) of the quiet deformation of the entirety under mass Action of Gravity Field of spring and formula (2):
Wherein:F is frequency, and unit is Hz;K is the global stiffness of whole springs;M is quality;π is pi;G is that gravity adds Speed;δ is the quiet deformation of entirety of whole springs, and unit is mm.
By the computing formula (1) of intrinsic frequency it is recognised that existing such tuning mass bumper can be to 2Hz or so The low-frequency vibration such as people's row energization good control is provided, the structural vibration for substantially going for 10Hz or so after expansion subtracts Shake, but the high-frequency structure vibration for being but difficult to be suitable for such as more than 15Hz.This is because, from computing formula (1), it is assumed that Under the conditions of quality m identical, the global stiffness of whole springs needed for when the intrinsic frequency of tuning mass bumper is for 3Hz is K, then solid The global stiffness of whole springs needed for when having frequency for 15Hz is 25K, and the global stiffness of whole springs need to improve 25 times, if directly profit With the spring of big rigidity, then production cost is greatly improved, if in parallel using a large amount of Low rigidity springs, product plane size is very Greatly, while needing larger plane space to put arrangement, applicability is poor;Additionally, can be drawn by formula (2), when tuning matter When the intrinsic frequency of amount shock absorber is 3Hz, the entirety of whole springs is quiet to be deformed into 27.6mm;And intrinsic frequency be 15Hz when, entirely The quiet deformation of the entirety of portion's spring is only 1.1mm;Admittedly be 20Hz for frequency, the quiet deformation of the entirety of whole springs is only 0.6mm. When the control place of the dithers such as subway floating plate is applied to, the global stiffness of required spring is larger, considers difficult processing Degree and economy, if can only typically utilize multiple helical steel springs used in parallel using helical steel springs, such technical scheme Shortcoming when being that multiple helical steel springs are used together, which is processed and assembly error has often just exceeded 1.1mm, therefore at all Engineering use requirement cannot be met.
For solving the above problems, there is technical staff to develop new high-frequency tuning mass bumper again, for example China is special High-frequency tuning mass bumper described in profit 201310289997.2, which has carried out pretension using pre-pressing structure to flexible member, The impact of flexible member initial non-linearities is eliminated, the compressed-bit of flexible member external force all the time in bearing and flexible member is made Move into the linear change stage of direct ratio, the global stiffness and high-frequency tuning mass damper of high frequency mass tuning damper elastic element The operating frequency of device remains stable, and therefore which goes for the dither control of more than 15Hz.But, such technology In scheme, due to being additionally arranged pre-pressing structure, the total height of product increased, and its applicability is restricted, such as on control ground During the dither of iron floating plate, due to being subject to the gauge of rail operation highly to restrict, such high-frequency tuning mass bumper is difficult To meet use requirement;Although if adopting leaf spring or the disc spring can be with save space as flexible member in such technology, its Vertical and lateral stiffness is interfered, it is impossible to realize vertical and horizontal while vibration damping well, and its applicability is affected by limiting System, for example, need to make while controlling vertical and oscillation crosswise application and being just difficult to satisfaction for the vibration control of rail is this kind of With requiring;In such technology if using the elastic polymer material such as elastic caoutchouc or elastic polyurethane as flexible member when, Its damping property is vulnerable to ambient influnence, such as in high temperature, acid-base value etc., and refractory ability is also poor, therefore applicability Limited.In addition, the universal cost of such high-frequency tuning mass bumper is higher, typically engine request precision can only be applied on a small quantity very High place, in the field that track, bridge etc. need in high volume to use, due to price problem, it is difficult to which large-scale promotion is used.
Further, the Chinese patent that number of patent application is 201110107528.5 proposes one kind for cantilevered hollow thin-wall The tuning mass bumper of rotor, including main body mechanism and supporting mechanism, main body mechanism includes quality of assistance block, connecting rod and two Individual spherical axis supporting block, described supporting mechanism include two end caps, hollow cylinder, abutment sleeve and ball-joint axle, wherein, aid in matter Gauge block and connecting rod are conjunction, and quality of assistance block is located at the middle part of connecting rod, and connecting rod is respectively arranged at the two ends with a spherical bearing Block, two spherical axis supporting blocks are embedded in each relative end cap, and two end caps are sealed in main body mechanism in hollow cylinder.Its Quality is provided using quality of assistance block, and connecting rod provides rigidity, grease lubrication is adopted between described spherical axis supporting block and end cap, Change the damping that contact situation of the spherical bearing with cover internal can change shock absorber, cantilevered hollow thin-wall can be reduced and turned Dither when son is rotated.But in this class formation, as connecting rod is arranged on the center of quality of assistance block, antagonism is eccentric Reverse required precision high, it is impossible to ensure the balance of quality of assistance block, the operating attitude of quality of assistance block is simultaneously unstable, when which moves Attitude often only do not move, while also have reversing, it is impossible to realize accurate frequency modulation, cause the actual operating frequency of system and set There is deviation in meter frequency, so as to affect final effectiveness in vibration suppression.In order to improve stability, increase guide frame is generally required, one Aspect increased the complexity of structure, improve cost;On the other hand the directionality of vibration control is also limit, reality is generally only capable of The vibration-damping function of existing single direction, applicability be not strong.
In sum, market an urgent demand is developed one kind and takes up room little, and applicability is higher, is suitable to engineering site and accurately adjusts Frequently, low cost, can be with large-scale production and the high-frequency tuning mass bumper that uses.
Utility model content
The purpose of this utility model is to overcome drawbacks described above, there is provided a kind of compact conformation, low cost, it is easy to engineering site Accurate frequency modulation, is suitable to large-scale production the unbiased rotating rod type high-frequency tuning mass bumper for using.
The utility model unbiased rotating rod type high-frequency tuning mass bumper is achieved in that including mass, elasticity unit Part and damping element, the flexible member include at least two elastic rods, the two ends of elastic rod be bearing on support respectively and Mass is connected with elastic rod, or one end of elastic rod is bearing on support and the other end of elastic rod and mass phase Even, the barycenter or barycenter made a concerted effort at least in vertical component by mass of Dynamic- Recovery power when whole elastic rods work Near, damping element is set directly at elastic rod surface or damping element is connected with mass.
The cross-sectional profiles shape of elastic rod described in the utility model can be square, triangle, circle, five sides Shape, hexagon, rectangle, ellipse or rhombus etc., it is to be particularly noted that when the cross-sectional profiles of elastic rod are shaped as triangle Shape, rectangle, ellipse or rhombus etc. vertical with horizontal asymmetrical shape when, due to elastic rod lateral stiffness and vertical stiffness not Same, after optimization design, pointedly can control the horizontal dither and vertical dither of structure to be damped respectively. Preferably, the elastic rod be rod that the high-strength material such as metal material, carbon fibre material, engineering plastics or fiberglass is made or Pipe.Additionally, being assembled with other structures for convenience or being fixed, can arrange in the outer surface of the elastic rod at least local Screw thread.
In order to realize the accurate frequency modulation of engineering site, elasticity in the utility model unbiased rotating rod type high-frequency tuning mass bumper Frequency regulation arrangement can also be set on bar.The structure of the frequency regulation arrangement can be with varied, for example, and frequency adjusts dress Put the frequency including being arranged in pairs and adjust axle sleeve, the both sides that the frequency adjustment axis are enclosed within mass are symmetrical arranged, and frequency is adjusted Axle sleeve is arranged and is fixed on elastic rod;Or, the frequency regulation arrangement includes the screw-type frequency adjustment axis being arranged in pairs Set, the screw-type frequency are adjusted axle sleeve and are symmetrically disposed in the both sides of mass and are connected by helicitic texture with mass, Screw-type frequency adjusts axle sleeve and is set on elastic rod;Or the frequency regulation arrangement includes at least two crossbeams, elastic rod The two ends of crossbeam are separately positioned on, mass is fixedly installed on crossbeam and is connected with elastic rod by crossbeam.Additionally, in order to It is easy to crossbeam is fixed on elastic rod, can also locking system be set between elastic rod and crossbeam, the locking system includes The locking nut that corresponding crossbeam both sides are arranged on the lock-screw arranged on crossbeam or elastic rod.In addition, mobile horizontal for convenience Beam carries out frequency modulation, will can be connected by securing member between mass and crossbeam, on crossbeam along elastic rod axially arranged strip Hole and appended claims.
In order to further improve the stability of system, it is preferred that all damping elements provided damping forces is made a concerted effort at least In the vertical barycenter by mass or center of mass.
As a kind of special case, in the utility model unbiased rotating rod type high-frequency tuning mass bumper, housing can also be included, The mass, flexible member and damping element are arranged in housing.
The method of the utility model unbiased rotating rod type high-frequency tuning mass bumper adjustment intrinsic frequency is also varied, its Can pass through to change the specification of elastic rod, change the effective elasticity working beam length of elastic rod or change the quantity of elastic rod The adjustment to system frequency is realized etc. method.
The utility model unbiased rotating rod type high-frequency tuning mass bumper substitutes conventional metals helical spring using elastic rod As flexible member, the rigidity having by the elastic rod itself that the high-strength materials such as steel are made and elasticity, with mass Coordinate " mass-elastic " system that can realize very high natural frequency that collectively forms, recycle damping element to absorb and consume External energy, it is possible to achieve good tuning quality vibration-damping function, especially at least arranges two elastic rods, and makes described complete The barycenter or center of mass made a concerted effort at least in vertical component by mass of Dynamic- Recovery power when portion elastic rod works, can be with Ensure that mass does not deflect in the course of work, it is to avoid interference is constituted to the intrinsic frequency of system, its intrinsic frequency is carried out After optimization design, it is possible to be pointedly used for the dither of control structure.Due to the height space very little that elastic rod takes, Therefore the structure of the utility model unbiased rotating rod type high-frequency tuning mass bumper closely, takes up room little, particularly accounts for Use height space very little;Further, since the scope of elastic rod selection is bigger, the intrinsic frequency that therefore the utility model can be realized Scope is also bigger;In addition, compared to traditional helical steel springs, the difficulty of processing of elastic rod is less, the key such as elasticity and rigidity Parameter is also easier to control, the simpler reliability of system, is less prone to failure, advantageously reduces production cost, improves damping Can, while improving service life;4th, by controlling the sectional dimension of elastic rod, it is possible to optimize the lateral stiffness of elastic rod And vertical stiffness, realize the control respectively to different horizontal frequencies and vertical frequency, it is not necessary to which in addition flexible member, structure are set Simpler, more preferably, cost performance is higher for product applicability;5th, it is accordingly required in particular to, it is noted that the utility model can be used for controlling The vibration of any direction perpendicular to elastic rod axial direction is made, including traditional vertical and horizontal, its applicability is higher, subtracts Effect of shaking is also more preferable.
In sum, the structure of the utility model unbiased rotating rod type high-frequency tuning mass bumper is simpler compact, tool Have long service life, achievable frequency is higher, intrinsic frequency is stable, be easily achieved live accurately frequency modulation, safe and reliable the advantages of, Its applicability is higher, and cost performance is higher, can be widely applied to the isostructural dither control of subgrade of metro, before the application of market Scape is very wide.
Description of the drawings
Fig. 1 is one of structural representation of the utility model unbiased rotating rod type high-frequency tuning mass bumper.
Top views of the Fig. 2 for Fig. 1.
Fig. 3 for the structural representation of the utility model unbiased rotating rod type high-frequency tuning mass bumper two.
Fig. 4 for the structural representation of the utility model unbiased rotating rod type high-frequency tuning mass bumper three.
Top views of the Fig. 5 for Fig. 4.
Fig. 6 for the structural representation of the utility model unbiased rotating rod type high-frequency tuning mass bumper four.
Fig. 7 for the structural representation of the utility model unbiased rotating rod type high-frequency tuning mass bumper five.
Fig. 8 for Fig. 7 A-A to sectional view.
Fig. 9 for the structural representation of the utility model unbiased rotating rod type high-frequency tuning mass bumper six.
B-B direction sectional views of the Figure 10 for Fig. 9.
Figure 11 for the structural representation of the utility model unbiased rotating rod type high-frequency tuning mass bumper seven.
Figure 12 for Figure 11 C-C to sectional view.
Figure 13 for the structural representation of the utility model unbiased rotating rod type high-frequency tuning mass bumper eight.
D-D sectional views of the Figure 14 for Figure 13.
Figure 15 for the structural representation of the utility model unbiased rotating rod type high-frequency tuning mass bumper nine.
Figure 16 for the structural representation of the utility model unbiased rotating rod type high-frequency tuning mass bumper ten.
Figure 17 for the structural representation of the utility model unbiased rotating rod type high-frequency tuning mass bumper 11.
Top views of the Figure 18 for Figure 17.
Figure 19 for the structural representation of the utility model unbiased rotating rod type high-frequency tuning mass bumper 12.
Top views of the Figure 20 for Figure 19.
Figure 21 for the structural representation of the utility model unbiased rotating rod type high-frequency tuning mass bumper 13.
T-T sectional views of the Figure 22 for Figure 21.
Specific embodiment
The utility model unbiased rotating rod type high-frequency tuning mass bumper as shown in Figure 1 and Figure 2, including mass 1, elasticity Element 2 and damping element 3, the flexible member 2 include the elastic rod that four round steel pipes are made;One end supporting of the elastic rod It is welded and fixed together on support 4 and with support 4, the other end of elastic rod is embedded in mass 1 and and mass It is welded and fixed together, when whole elastic rods work, Dynamic- Recovery power makes a concerted effort at least in vertical component by mass Barycenter or center of mass;Damping element 3 is arranged on below mass 1, and damping element 3 is specially hole throttle type damper, Its one end is connected with mass 1, and the other end is connected with the connecting bottom board 20 of support 4.
The utility model unbiased rotating rod type high-frequency tuning mass bumper substitutes conventional metals helical spring using elastic rod As flexible member, the rigidity having by the elastic rod itself that the high-strength materials such as steel are made and elasticity, with mass Coordinate " mass-elastic " system that can realize very high natural frequency that collectively forms, recycle damping element to absorb and consume External energy, it is possible to achieve good tuning quality vibration-damping function, especially at least arranges two elastic rods, whole elasticity The barycenter or center of mass made a concerted effort at least in vertical component by mass of Dynamic- Recovery power when bar works, it is ensured that work During work, mass does not deflect, it is to avoid constitutes interference to the intrinsic frequency of system, its intrinsic frequency is optimized and is set After meter, it is possible to be pointedly used for the dither of control structure.Due to elastic rod take height space very little, therefore this The structure of utility model unbiased rotating rod type high-frequency tuning mass bumper closely, takes up room little, particularly takes height Space very little;Additionally, based on the know-why described in this example, elastic rod can select metal material, carbon fibre material, engineering plastic Rod or pipe that the high-strength material such as material or fiberglass is made, as the scope of elastic rod selection is bigger, therefore the utility model can Also bigger with the intrinsic frequency scope that realizes;In addition, compared to traditional helical steel springs, the difficulty of processing of elastic rod is less, The key parameter such as elasticity and rigidity is also easier to control, and the simpler reliability of system is less prone to failure, advantageously reduces production Cost, improves damping property, while improving service life;4th, the utility model can be used for control perpendicular to elastic rod axle To any direction vibration, including traditional vertical and horizontal, its applicability is higher, and effectiveness in vibration suppression is also more preferable.Special Not it is noted that adopting elastic rod as flexible member, compared to the helical steel springs that is made using spring steel as elasticity Element, can be greatly reduced product cost, in general at least cost can be reduced by more than 30%, for large product even Can realize reducing by more than 80% cost, therefore its cost performance is high, is particularly suitable for large-scale production and use, can meet The high-volume use requirement in the engineering vibration damping such as track traffic, bridge field.It is pointed out that in unbiased described in design this example During rotating rod type high-frequency tuning mass bumper, by the specification for changing elastic rod or the effective elasticity work for changing elastic rod Bar length can just realize the adjustment to system frequency, it is easy to realize product seriation, wherein, the elastic rod effective Elastic working bar length provides the physical length of the elastic rod of elasticity, for example in FIG, quality when being exactly and can vibrate for mass Elastic rod part between the side wall N of the end face P and support 4 of block 1, the effective elasticity working beam of as described elastic rod are long.
In sum, the structure of the utility model unbiased rotating rod type high-frequency tuning mass bumper is simpler compact, tool Have long service life, achievable frequency is higher, intrinsic frequency is stable, safe and reliable the advantages of, its applicability is higher, and cost performance is more Height, can be widely applied to the isostructural dither control of subgrade of metro, and market application foreground is very wide.
Certainly, based on know-why of the present utility model, the quantity of the concrete structure and elastic rod of support 4 can basis Requirement of engineering design alternative.For example, it is also possible to support 4 is directly solidly fixed with structure to be damped, cancel connecting bottom board 20, The other end of corresponding damping element 3 is directly connected with structure to be damped;Additionally, being actually needed according to engineering, elasticity The quantity of bar can also be 6,8 even more many, such as, shown in Fig. 3, when mass size is larger, be provided with 6 bullets Property bar coordinated with mass, when 6 elastic rods work Dynamic- Recovery power make a concerted effort at least passes through in vertical component The barycenter or center of mass of mass.It is pointed out that in due to this example, mass is the rectangular configuration of uniform rule, will Elastic rod Dynamic- Recovery power when mass both sides are arranged symmetrically and ensure that whole elastic rods work is made a concerted effort vertical Barycenter of the component by mass, if elastic rod is arranged symmetrically in barycenter both sides, it is possible to realize whole elastic rod work When Dynamic- Recovery power make a concerted effort horizontal component also by mass barycenter, now, mass state operationally will Highly stable, stablizing for system frequency is advantageously implemented, to ensure that the intrinsic frequency with vibration damping object construction is close to or phase Same, realize optimal effectiveness in vibration suppression.But in actual applications, due to the presence of mismachining tolerance, can only typically realize whole bullets Property bar work when Dynamic- Recovery power make a concerted effort in vertical component or the center of mass in horizontal component by mass, so The utility model employs " by the barycenter or center of mass of mass " this statement to keep rigorous.Work as mass In irregular shape when, can be so that elastic rod be arranged using asymmetrical mode, or the elastic rod using different cross section size, When realizing that whole elastic rods work, Dynamic- Recovery power is at least attached by the barycenter or barycenter of mass in vertical component with joint efforts Closely, with ensure as far as possible mass work when do not deflect;In addition, according to different requirement of engineering, elastic rod is except adopting Steel pipe is made outer, it would however also be possible to employ rod iron, and other metal materials, carbon fibre material, engineering plastics or glass-reinforced plastic material system Into rod or pipe.Above-mentioned technical proposal is all based on the simple change of the utility model know-why, and here is only given with word Illustrate, all among the protection domain that the utility model is required.
Embodiment two
The utility model unbiased rotating rod type high-frequency tuning mass bumper as shown in Figure 4, Figure 5, including mass 1, elasticity Element 2 and damping element 3, the flexible member 2 are made up of the elastic rod that two rod irons are made, and the two ends of elastic rod support respectively Be welded and fixed together on support 4 and with support 4, mass 1 is arranged on elastic rod, elastic rod through mass 1 and It is welded and fixed together with mass, when whole elastic rods work, Dynamic- Recovery power is at least logical in vertical component with joint efforts Cross the barycenter or center of mass of mass;Damping element 3 is arranged on below mass 1, and damping element 3 is specially hole throttle type Damper, its one end are connected with mass 1, and the other end is connected with the connecting bottom board 20 of support 4;Frequency tune is additionally provided with elastic rod Regulating device, the frequency regulation arrangement include that four frequencies adjust axle sleeve 30, and each frequency adjusts axle sleeve by two semicircular Frequency adjusting set is assembled by securing member 31 and is formed, and which is arranged and is fixed on elastic rod, and four frequency adjusting sets 30 exist The both sides of mass 1 are symmetrical arranged.
Compared with embodiment one, due to being additionally arranged frequency regulation arrangement, change having for elastic rod using frequency regulation arrangement Effect elastic working bar length can just realize the adjustment to system frequency, it is easy to realize the accurate frequency modulation of engineering site and product Seriation.The effective elasticity working beam length of the elastic rod provides the reality of the elastic rod of elasticity when being exactly and can vibrate for mass Border length, in the diagram, frequency adjusts the elastic rod part between the outermost side end face M and the side wall N of support 4 of axle sleeve 30, as The effective elasticity working beam of the elastic rod is long.Change the usage quantity or single frequency regulation axle sleeve that frequency adjusts axle sleeve 30 The effective elasticity working beam that 30 width dimensions can just change elastic rod is long, in this way, can engineering site according to Actual conditions are accurately adjusted to the intrinsic frequency of the utility model unbiased rotating rod type high-frequency tuning mass bumper, are carried significantly The high applicability of product, meanwhile, advantageously ensure that the intrinsic frequency of product and the resonant frequency phase as far as possible of structure to be damped With, and then improve damping efficiency, it should be pointed out that only said as a example by four frequencies being set and adjusts axle sleeve 30 in this example Bright, in practical application, can also be arranged in pairs as needed two, six, eight even more polylith frequencies adjust axle sleeve, only To be arranged symmetrically in mass both sides.Detachable split-type structural is employed as frequency adjusts axle sleeve 30, therefore existing Field control frequency is very convenient.
In sum, the structure of the utility model unbiased rotating rod type high-frequency tuning mass bumper is simpler compact, tool Have long service life, achievable frequency is higher, intrinsic frequency is stable, safe and reliable the advantages of, its applicability is higher, and cost performance is more Height, can be widely applied to the isostructural dither control of subgrade of metro, and market application foreground is very wide.
Certainly, based on know-why of the present utility model, the quantity of the concrete structure and elastic rod of support 4 can basis Requirement of engineering design alternative.For example, it is also possible to support 4 is directly solidly fixed with structure to be damped, cancel connecting bottom board 20, The other end of corresponding damping element 3 is directly connected with structure to be damped;Additionally, being actually needed according to engineering, elasticity The quantity of bar can also be three, four even more many, such as, shown in Fig. 6, when mass size is larger, be provided with three Elastic rod is coordinated with mass.Due to employing the mass of rectangle in technical scheme shown in Fig. 6, therefore three elastic rods Physical dimension identical, and be symmetrical arranged relative to mass in arrangement, dynamic when the whole elastic rods work to ensure The barycenter or center of mass made a concerted effort at least in vertical component by mass of state restoring force.It is pointed out that working as quality Block in irregular shape when, can be so that elastic rod be arranged using asymmetrical mode, or the elasticity using different cross section size Bar, to ensure barycenter or the matter made a concerted effort at least in vertical component by mass of Dynamic- Recovery power during whole elastic rods work Near the heart.Above-mentioned technical proposal is all based on the simple change of the utility model know-why, and here is only described with word, All among the protection domain that the utility model is required.
Embodiment three
The utility model unbiased rotating rod type high-frequency tuning mass bumper as shown in Figure 7 and Figure 8, the difference with embodiment two It is, aluminium alloy elastic rod of the flexible member 2 by shape of cross section for rectangle is constituted, in order to prevent elastic rod from occurring axially Play, in the outside of support 4, the two ends of corresponding elastic rod are respectively provided with block 5 and securing member 6;Additionally, zero deflection described in this example Also include frequency regulation arrangement in rod-type high-frequency tuning mass bumper, the frequency regulation arrangement includes that two pieces of frequencies are adjusted Axle sleeve 7, frequency adjust the both sides that axle sleeve 7 is located at mass 1, are symmetrical set, and which is arranged and is fixed on bullet using trip bolt 8 On property bar, while mass 1 is clamped on elastic rod;In addition, flexible member 3 includes two elastic shear formula dampings Device, two elastic shear formula dampers are symmetrically disposed in below mass.
Compared with technical scheme described in embodiment one, technical scheme described in this example have the advantage that including:(1) due to adopting Elastic rod of the cross section for rectangle, by controlling the sectional dimension of elastic rod, it is possible to optimize elastic rod lateral stiffness and Vertical stiffness, realizes the control respectively to different horizontal frequencies and vertical frequency, it is not necessary in addition arrange flexible member, structure is more Plus simple, more preferably, cost performance is higher for product applicability;(2) due between elastic rod and support 4, between elastic rod and mass 1 And elastic rod and frequency are adjusted and employ dismountable fixed connection structure between axle sleeve 7, when needing to safeguard, can be very Fractionation replacing is easily carried out;(3) as a result of the aluminium alloy elastic rod that shape of cross section is rectangle as flexible member, this The lateral stiffness of class flexible member is different with vertical stiffness, after optimization design, pointedly can control respectively to be damped The horizontal dither and vertical dither of structure, effectiveness in vibration suppression is more preferably.
Similar to embodiment two, in technical scheme described in this example, due to being provided with frequency regulation arrangement, adjusted by frequency Axle sleeve limits elastic rod local elasticity, and the effective elasticity working beam so as to change elastic rod both sides offer elasticity is long, such as in Fig. 7 The effective elasticity working beam that the side wall N of support 4 and frequency adjust the elastic bar segment as elastic rod between the side Q of axle sleeve 7 is long, In this way, can in engineering site according to actual conditions to the utility model unbiased rotating rod type high-frequency tuning mass damper The intrinsic frequency of device is accurately adjusted.
It is pointed out that damping element employs two elastic shear formula dampers in this example, for guarantee mass The needs of stability during work, it is preferred that dividing in vertical with joint efforts for the provided damping force of all damping elements should be provided during design Barycenter or center of mass of the power by mass, therefore, in technical scheme shown in Fig. 7, should be by damping element in barycenter both sides pair Claim arrangement.The principle be applied equally to the utility model other setting more than a damping element technical scheme, here one And be described.
Based on the know-why described in embodiment one, embodiment two and this example, the horizontal stroke of elastic rod described in the utility model Cross-section profile shape can be the various shapes such as square, triangle, circle, pentagon, hexagon, rectangle, ellipse or rhombus Shape, it is to be particularly noted that when the cross-sectional profiles of elastic rod be shaped as triangle, rectangle, ellipse or rhombus etc. vertical with Laterally during asymmetrical shape, due to the lateral stiffness of elastic rod different with vertical stiffness, after optimization design, can be with specific aim Ground controls the horizontal dither and vertical dither of structure to be damped respectively;Additionally, damping element can in the utility model Multiple to be hole throttle type damper, elastic shear formula damper, viscous shearing-type damping device or electric vortex type damper etc. Concrete form, can act as good effect according to the actual selection of engineering in application, and here is only given with word Bright, no longer accompanying drawing one by one, all among the protection domain that the utility model is required.
Example IV
The utility model unbiased rotating rod type high-frequency tuning mass bumper as shown in Figure 9 and Figure 10, with the area for implementing row two It is not, flexible member 2 includes that four elastic rods, elastic rod center outer surface are threaded;Additionally, the both sides of mass 1 are solid Otic placode 9 is set surely, and elastic rod is arranged through otic placode 9, realizes the supporting to mass 1;3rd, there is axle to prevent elastic rod To play, in the outside of support 4, the two ends of corresponding elastic rod are respectively provided with block 5 and securing member 6;4th, arrange on elastic rod Locking nut 10 and frequency regulation arrangement, the frequency regulation arrangement include that the frequency being arranged in pairs adjusts axle sleeve 32, the frequency Rate adjusts the locking nut that axle sleeve 32 is specially incrassation type, and which is symmetrical arranged in the both sides of mass 1, and frequency adjusts 32 sets of axle sleeve And if be fixed on elastic rod, after the relative position of mass and elastic rod is determined, using the locking arranged in 9 both sides of otic placode Nut 10 and frequency adjust axle sleeve 32 and mass 1 are fixed on elastic rod;In addition, between mass 1 and connecting bottom board 20 Three damping elements 3 are set.
Compared with embodiment two, the advantage of technical scheme described in this example is, between elastic rod and support 4, mass with Can easily be split between elastic rod, be readily transported the maintenance replacing with in-site installation and later stage;Additionally, in quality 1 both sides of block are arranged otic placode 9 and are connected with elastic rod, more direct than elastic rod through the simpler convenience of mass, processing and fabricating, Assemble or disassemble and be also all more prone to;Further, frequency adjusts the intrinsic frequency that axle sleeve 32 can be not only used for precise adjustment of product, Which may also operate as the function of locking nut, is conducive to simplifying product structure, reduces product cost.
Embodiment five
The utility model unbiased rotating rod type high-frequency tuning mass bumper, the area with embodiment two as shown in Figure 11, Figure 12 It is not, flexible member 2 includes that two elastic rods, elastic rod adopt screw rod;Additionally, the frequency regulation arrangement includes two horizontal strokes Beam 12, two elastic rods are separately positioned on the two ends of crossbeam, and are connected with connecting seat 11 is fixedly installed on crossbeam;Mass 1 is welded Connect and be fixedly installed on crossbeam 12;In addition, for the ease of crossbeam is fixed on elastic rod, being additionally provided between elastic rod and crossbeam Locking system, the locking system are the locking nut 10 that 11 both sides of connecting seat of corresponding crossbeam 12 on elastic rod are arranged;4th, Damping element 3 includes the four viscous shearing-type damping devices arranged between mass 1 and connecting bottom board 20, and four viscous shearing Damper is separately positioned on four edges of mass 1;5th, also entered using locking nut 10 between elastic rod and support 4 Row is locked.
Technical scheme described in this example is had the advantage that compared to embodiment two:(1) by the position of moving beam 12, from And change elastic rod can provide elasticity effective bar long, so as to change the intrinsic frequency of system, can engineering site according to Actual conditions are adjusted to the intrinsic frequency of the utility model unbiased rotating rod type high-frequency tuning mass bumper, are substantially increased The applicability of product, meanwhile, advantageously ensure that the intrinsic frequency of product is as identical as possible with the resonant frequency of structure to be damped, enter And improve damping efficiency;(2) elastic rod adopts screw rod, is additionally provided with locking nut 10 and fills as locking between elastic rod and crossbeam Put, can easily adjust position of the crossbeam 12 relative to elastic rod, so as to be adjusted to the intrinsic frequency of system, application When, accurate adjustment can be carried out to the intrinsic frequency of system first at the scene, then again mass is connected with crossbeam weldering; (3) elastic rod adopts screw rod, is locked using locking nut 10 between elastic rod and support 4, and which can split at any time, Safeguard and assemble all very convenient;(4) as four edges in 1 bottom surface of mass are respectively provided with damping element 3, occur During vibration, tilting moment is not likely to produce, mass is more stable.
In technical scheme described in this example, the position relative mass block of elastic rod is relatively low, and which can realize whole elastic rod works When making, the barycenter or center of mass made a concerted effort in vertical component by mass of Dynamic- Recovery power, is difficult to realize whole elastic rods During work, the barycenter or center of mass made a concerted effort in horizontal component by mass of Dynamic- Recovery power, therefore, terminates in frequency modulation Afterwards mass is solidly fixed with crossbeam, the stability of mass can be effectively improved.
Embodiment six
The utility model unbiased rotating rod type high-frequency tuning mass bumper, the area with embodiment five as shown in Figure 13, Figure 14 It is not, mass 1 is constituted by multiple independent mass are stacked;In addition the locking system for arranging between elastic rod and crossbeam 12 is concrete For the lock-screw 15 arranged on connecting seat 11;In addition, moving beam 12 carries out frequency modulation, mass 1 and crossbeam 12 for convenience Between by securing member 13 be connected, the axially arranged strip hole 14 on crossbeam 12 along elastic rod is coordinated with securing member 13.
Compared with embodiment five, the advantage of the technical scheme described in this example is:Using can between crossbeam 12 and mass 1 The structure of fractionation is connected, and is easy to follow-up maintenance or adjustment;Additionally, practical new using the stacked group cost of multiple independent mass Mass in type, is not only convenient for processing and fabricating, transport and assembling, while also allow for adjusting mass of vibration, so as to join to system Number is accurately adjusted.
Based on the know-why of this example, different according to the size of mass, crossbeam can also arrange three or more than three, In this case, when the regular shape of mass, it is the stability for ensureing mass, it is to avoid produce obvious moment of torsion, crossbeam Relative mass block is answered to be arranged symmetrically, for example, as shown in figure 15, the difference with technical scheme described in Figure 13 is, crossbeam 12 is arranged Four, be the stability for ensureing mass 1, it is to avoid produce obvious moment of torsion, four 12 relative mass block of crossbeam, 1 symmetrical cloth Put;Additionally, for top arranges the connecting seat 11 of bayonet socket, locking device is specially the lock-screw that 11 top of connecting seat is arranged 15.Now, the effective elasticity working beam length of elastic rod is limited by outermost crossbeam;Certainly, when the shape of mass is not advised When then, it is also possible to arrange crossbeam using asymmetrical form, made a concerted effort with Dynamic- Recovery power when ensureing that whole elastic rods work At least in vertical component by the barycenter of mass or center of mass, here is only described with word, not still further accompanying drawing Explanation.
Embodiment seven
The utility model unbiased rotating rod type high-frequency tuning mass bumper as shown in figure 16, the difference with embodiment three exist In the frequency regulation arrangement includes that the screw-type frequency being arranged in pairs adjusts axle sleeve 21, and the screw-type frequency adjusts axle sleeve 21 both sides for being symmetrically disposed in mass 1 are simultaneously connected by helicitic texture with mass 1, and screw-type frequency adjusts 21 sets of axle sleeve It is located on elastic rod 2.
To in embodiment three record know-why similar, due to screw-type frequency adjust axle sleeve 21 size larger, its The elasticity of covered elastic rod part can be effectively limited, therefore, screw-type frequency is adjusted by helicitic texture and is adjusted axle sleeve 21 Screw out the length of mass 1, it is possible to which the effective elasticity working beam for adjusting elastic rod is long, so as to realize adjusting system frequency Purpose.Compared with embodiment three, in the technical scheme described in this example due to screw-type frequency adjust axle sleeve 21 and mass 1 it Between be attached using helicitic texture, be more prone to using the effective elasticity working beam length of helicitic texture adjustment elastic rod, with When which can realize continuously adjusting system frequency, be a kind of technical scheme that can really realize accurate frequency modulation;Additionally, As technical scheme described in this example is when the adjustment system frequency of axle sleeve 21 is adjusted using screw-type frequency, it is not necessary to extra again Increase element, being therefore more suitable for engineering site carries out accurate frequency modulation use.
Embodiment eight
The utility model unbiased rotating rod type high-frequency tuning mass bumper as shown in Figure 17 and Figure 18, the area with embodiment two Be not, the support 4 that two blocks of steel plates are made is prefabricated respectively to be anchored in main structure 22,2 one end of elastic rod that rod iron is made with The weldering of frame 4 connects, and the other end is welded and fixed together with quality 1;Additionally, damping element 3 is set directly at 2 surface of elastic rod, damping Element 3 is specially a kind of damping sleeve being made up of elastane, and damping sleeve is set on elastic rod 2;In addition, the frequency Rate adjusting means includes that two frequencies adjust axle sleeves 30, and each frequency adjusts axle sleeve and passed through by the sub- frequency adjusting set of two semicirculars Securing member 31 is assembled and is formed, and which is arranged and is fixed on elastic rod, and two frequency adjusting sets 30 are in the both sides pair of mass 1 Claim to arrange.
Compared with embodiment two, technical scheme described in this example, as damping element is set directly at elastic rod surface, Extra installing space is no longer taken, therefore structure is compacter, the space of occupancy is less, and applicability is higher.Additionally, by support It is directly anchored in main structure, is also beneficial to improve space availability ratio.In addition, in technical scheme shown in Figure 17, if elastic rod It is located in same level with barycenter and relative barycenter is arranged symmetrically, by damping element after mass both sides are arranged symmetrically, The barycenter or barycenter made a concerted effort in vertical component by mass of the provided damping force of all damping elements not only can be provided Near, barycenter or the matter made a concerted effort in horizontal component by mass of the provided damping force of all damping elements can also be provided Near the heart, be conducive to improving stability when mass works.
Certainly, based on the know-why described in this example, damping element 3 can also adopt high-damping rubber etc., and other are elastic Damping material is made, and also can realize similar technique effect, can be applied among the utility model.
Embodiment nine
The utility model unbiased rotating rod type high-frequency tuning mass bumper as illustrated in figures 19 and 20, the area with embodiment eight It is not, support 4 is supported in the middle of elastic rod 2, elastic rod 2 is arranged through support 4 and fixed using locking nut 10;Institute Stating mass includes that two independent protonatomic mass blocks 42, two sub- masses 42 correspond to support and are symmetrically disposed in elastic rod 2 Two ends.
Compared with embodiment eight, in technical scheme described in this example due to by mass be split as two sub- masses 42 and The both sides of support 4 are respectively arranged at, Dynamic- Recovery power at least divides in vertical with joint efforts when which still meets whole elastic rods work Requirement of the power by the barycenter of mass or center of mass, goes for that support width is narrower, and internal stent space is less, nothing Method normally accommodates the application conditions of mass.
Embodiment ten
The utility model unbiased rotating rod type high-frequency tuning mass bumper as shown in figure 21 and figure, the area with example IV It is not, also includes that housing 40, the mass, flexible member and damping element are arranged in housing, wherein, flexible member 2 include that two elastic rods, 1 both sides of mass are fixedly installed otic placode 9 respectively, and elastic rod is arranged through otic placode 9, the two ends of elastic rod It is embedded on the support 4 of 40 two ends of housing setting respectively, support 4 is also the closing plug at 40 inner chamber two ends of housing simultaneously, described All elastic rod meets the barycenter or barycenter made a concerted effort at least in vertical component by mass of operationally Dynamic- Recovery power Near;The frequency regulation arrangement includes that four frequencies adjust axle sleeve 30, and each frequency adjusts axle sleeve by two semicircular frequencies Rate adjusting set is assembled by securing member 31 and is formed, and which is arranged and is fixed on elastic rod, and four frequency adjusting sets 30 are in matter The both sides of gauge block 1 are symmetrical arranged;In housing 40, the two ends of corresponding mass block 1 are fixedly installed dividing plate 41, vibration isolation 41 and quality respectively Damping element 3 is set between block 1, the damping element 3 is specifically made up of high-damping rubber material, high-damping rubber respectively with every Plate 41 and the sulfuration of mass 1 are fixed together.
Compared with example IV, technical scheme described in this example equally have be not susceptible to deflection, can realize live accurate Frequency modulation, simple structure, applicability are good, processing cost is low and elastic rod and support be easy to split putting maintenance into practice etc. a series of excellent Point.Difference is that, due to being additionally arranged housing in technical scheme described in this example, mass, flexible member and damping element are equal It is arranged in housing, whole " mass-elastic " system can be well protected, and its vibration and noise reducing performance receives external rings Border impact is less, and service life is longer, and fire resistance is also effectively lifted;Additionally, damping element 3 is symmetrically disposed in quality Between block 1 and dividing plate 41, it is easy to accomplish pass through in vertical and horizontal component the provided damping force of all damping elements with joint efforts The barycenter or center of mass of mass, mass are more stable when working, and are not susceptible to deflect.Certainly based on the skill described in this example Art principle, damping element 3 can also be arranged between mass and housing, can also realize good technique effect, and can be with Dividing plate 41 is dispensed, simpler convenience is processed, but, relative to the technical scheme described in this example, its external frame inner space Requirement is higher, needs the housing using larger specification, is unfavorable for reduces cost.In addition, damping element 3 is except adopting high resistant Outside the polymer damping materials such as Buddhist nun's rubber, high-damping polyurethane, it would however also be possible to employ the damping structure of other forms, for example, can adopt Metal clusters are used, and damping force, this technical scheme are provided using the dry friction that metal clusters are produced between mass and dividing plate More preferable high temperature resistant, fire resistance can be realized.Such technical scheme is equally the simple change of the utility model know-why, Also, among the protection domain that the utility model is required, here is only described with word.
It is presented above part exemplary embodiments of the present utility model, it is therefore intended that conveniently more fully understand the utility model Technical scheme, which is not construed as to restriction of the present utility model, and the technical scheme in wherein each embodiment can also be intersected to be made With as long as being based on know-why of the present utility model, all among the protection domain that the utility model is required.

Claims (12)

1. a kind of unbiased rotating rod type high-frequency tuning mass bumper, including mass, flexible member and damping element, its feature exists Include that at least two elastic rods, the two ends of elastic rod are bearing on support and mass and elasticity respectively in the flexible member Bar is connected, or one end of elastic rod is bearing on support and the other end of elastic rod is connected with mass, whole bullets Property bar when working Dynamic- Recovery power make a concerted effort at least in vertical component by the barycenter of mass or center of mass, damping element It is set directly at elastic rod surface or damping element is connected with mass.
2. unbiased rotating rod type high-frequency tuning mass bumper according to claim 1, it is characterised in that the elastic rod Outer surface is at least locally threaded.
3. unbiased rotating rod type high-frequency tuning mass bumper according to claim 1, it is characterised in that arrange on elastic rod Frequency regulation arrangement.
4. unbiased rotating rod type high-frequency tuning mass bumper according to claim 3, it is characterised in that the frequency is adjusted Device includes that the frequency being arranged in pairs adjusts axle sleeve, and the both sides that the frequency adjustment axis are enclosed within mass are symmetrical arranged, and frequency is adjusted Nodal axisn set is arranged and is fixed on elastic rod.
5. unbiased rotating rod type high-frequency tuning mass bumper according to claim 3, it is characterised in that the frequency is adjusted Device includes that at least two crossbeams, elastic rod are separately positioned on the two ends of crossbeam, and mass is fixedly installed on crossbeam and leads to Cross crossbeam to be connected with elastic rod.
6. unbiased rotating rod type high-frequency tuning mass bumper according to claim 5, it is characterised in that elastic rod and crossbeam Between also set up locking system, the locking system includes corresponding crossbeam both sides on the lock-screw arranged on crossbeam or elastic rod The locking nut of setting.
7. unbiased rotating rod type high-frequency tuning mass bumper according to claim 6, it is characterised in that mass and crossbeam Between by securing member be connected, on crossbeam along elastic rod axially arranged strip hole and appended claims.
8. unbiased rotating rod type high-frequency tuning mass bumper according to claim 3, it is characterised in that the frequency is adjusted Device includes that the screw-type frequency being arranged in pairs adjusts axle sleeve, and the screw-type frequency adjusts axle sleeve and is symmetrically disposed in mass Both sides and be connected by helicitic texture with mass, screw-type frequency adjust axle sleeve be set on elastic rod.
9. unbiased rotating rod type high-frequency tuning mass bumper according to claim 1, it is characterised in that the elastic rod is Rod or pipe that metal material, carbon fibre material, engineering plastics or glass-reinforced plastic material are made.
10. unbiased rotating rod type high-frequency tuning mass bumper according to claim 1, it is characterised in that the elastic rod Cross-sectional profiles are shaped as square, triangle, circle, pentagon, hexagon, rectangle, ellipse or rhombus.
11. unbiased rotating rod type high-frequency tuning mass bumpers according to claim 1, it is characterised in that all damping elements The barycenter or center of mass made a concerted effort at least in vertical component by mass of provided damping force.
12. unbiased rotating rod type high-frequency tuning mass bumpers according to claim 1, it is characterised in that also include housing, The mass, flexible member and damping element are arranged in housing.
CN201620909764.7U 2016-08-19 2016-08-19 Unbiased rotating rod type high-frequency tuning mass bumper Withdrawn - After Issue CN206015936U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106088387A (en) * 2016-08-19 2016-11-09 青岛科而泰环境控制技术有限公司 Zero deflection rod-type high-frequency tuning mass bumper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106088387A (en) * 2016-08-19 2016-11-09 青岛科而泰环境控制技术有限公司 Zero deflection rod-type high-frequency tuning mass bumper

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