CN103216019A - Strut vibration damper and strut - Google Patents
Strut vibration damper and strut Download PDFInfo
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- CN103216019A CN103216019A CN2012102665388A CN201210266538A CN103216019A CN 103216019 A CN103216019 A CN 103216019A CN 2012102665388 A CN2012102665388 A CN 2012102665388A CN 201210266538 A CN201210266538 A CN 201210266538A CN 103216019 A CN103216019 A CN 103216019A
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- Road Signs Or Road Markings (AREA)
Abstract
The invention provides a strut vibration damper (200), comprising a bracket (202) which is provided with an installation part (222) installed in a strut (100) (a strut main body (102)) and a flange part (224) which extends to the radial outside from the installation part (222); a rubber (204) installed on an upper part or a lower part of the flange part (224); and a balance weight member (206) installed on the rubber (204) on a side opposite to the flange part (224). The strut vibration damper can attenuate vibration of the strut in an early stage.
Description
Technical field
The present invention relates to pillar vibration absorber and pillar.
Background technology
Road sign or road furniture (illumination, street lamp), electric pole etc. prop up the influence of major gene wind or the influence of vehicle ' etc. and vibrate.For example locate at viaduct etc., viaduct can rock along with travelling of vehicle.The road sign or the road pavement equipment that are arranged at viaduct vibrate along with rocking of viaduct.Though such Oscillation Amplitude is little, can be for a long time and impose on pillar constantly.Therefore, for the pillar of road sign or road furniture, pillar or stone bolt can damage (for example if pillar is a hollow section, then can produce be full of cracks) because of metal fatigue sometimes.Therefore, must carry out regular maintenance.
At such pillar, propose to have various about making the scheme that waits the vibration absorber that the inputted vibration that causes decays by travelling of wind or vehicle.For example, propose to have the mode (Japanese kokai publication hei 5-187482 communique) that makes up with the mode (Japanese kokai publication hei 9-143939 communique) of weight and spring assembly, with spring and hydraulic buffer (oil damper), impregnated in mode (TOHKEMY 2006-71095 communique) in the viscous fluid and the mode (TOHKEMY 2007-239906 communique) that is installed on the pillar outside as oscillator.And, propose to have mode (TOHKEMY 2001-73329 communique) that between pillar and fixed part, sandwiches vibration-absorbing body and the mode (TOHKEMY 2001-207688 communique) that vibration-absorbing body is embedded in pillar inside.In addition, also propose to have and make the sagging mode of chain (Japan's special permission No. 4493090, TOHKEMY 2006-226038 communique) in pillar inside, will dispose viscous fluid and be arranged at the mode (TOHKEMY 2007-127210 communique) of pillar inside, the mode of suspention oscillator (TOHKEMY 2007-170415 communique, No. 3222863 communique of Japan's special permission) with the block of its plate that flows of constraint.
Patent documentation 1: Japanese kokai publication hei 9-143939 communique, the 0012nd section～the 0014th section, Fig. 2
Patent documentation 2: Japanese kokai publication hei 5-187482 communique
Patent documentation 3: TOHKEMY 2006-71095 communique
Patent documentation 4: TOHKEMY 2007-239906 communique
Patent documentation 5: TOHKEMY 2001-73329 communique
Patent documentation 6: TOHKEMY 2001-207688 communique
Patent documentation 7: No. the 4493090th, Japan's special permission
Patent documentation 8: TOHKEMY 2006-226038 communique
Patent documentation 9: TOHKEMY 2007-127210 communique
Patent documentation 10: TOHKEMY 2007-170415 communique
Patent documentation 11: No. 3222863 communique of Japan's special permission
For example, above-mentioned patent documentation 1(Japanese kokai publication hei 9-143939 communique) disclosed vibration absorber is built in the protuberance (with reference to the 0012nd section in this communique) of crooked front end of being of steel pipe column.Vibration absorber disclosed herein constitutes and comprises: an end is fixed in the helical spring of fixed part; And the counterweight that is installed on a helical spring end.Such pillar can be brought into play damping effect with vibration absorber for the vibration of the direction that helical spring stretched.Because helical spring is flexible along guiding piece, therefore can't give full play to function at the vibration on other direction sometimes.And,, but can't be applied to other pillar though be installed on front end bending and outstanding steel pipe column.
Summary of the invention
The inventor has proposed a kind of novel pillar vibration absorber, utilizes quality and especially at the intrinsic vibration (particularly single order vibration) of pillar performance damping effect.
The related pillar of an embodiment of the invention possesses with vibration absorber: carriage, this carriage have installation portion that is installed on pillar and the flange part that extends from installation portion towards radial outside; Be installed on the rubber of the top or the bottom of flange part; And the counterweight that is installed on rubber in a side opposite with flange part.According to such pillar vibration absorber, the vibration of pillar is decayed in early days.
Herein, counterweight and rubber can form and can change.And carriage can be the parts in the ring-type of all sides installation of the pillar of installing for carriage.Carriage can upwards be cut apart in week, can possess the constraint component of constraint carriage under the state of all sides that are installed on pillar.And carriage can possess the hinge that the parts of upwards cutting apart in week are linked.And rubber and counterweight can dispose a plurality of respectively.In this case, rubber and counterweight can be configured along concentric circles with respect to the axis of the pillar of installing for carriage.And counterweight can be the parts of ring-type, and rubber can support counterweights in a plurality of positions that making progress in week with respect to the pillar of installing for carriage.
And rubber and counterweight can be installed on the upside of flange part, can possess the sliding bearing of supporting counterweight between counterweight and flange part.And the preferred shear strain of rubber is that 3%～20% o'clock loss coefficient tan δ is 0.2～1.2 height decay rubber.
And the related pillar of an embodiment of the invention possesses: the support-column main body that is erected at the portion of being set up; Flange, this flange is installed on support-column main body, and extends towards radial outside from support-column main body; Be installed on the rubber of the top or the bottom of flange; And the counterweight that is installed on rubber in a side opposite with flange.
In this case, preferably, flange be installed on support-column main body half height the position or than half highly high position of described support-column main body.And, preferably, the pillar that is made of flange, rubber and counterweight is with the eigentone A of vibration damping part (pillar vibration absorber), and is not equipped with that to constitute this pillar be 0.5≤(A/B)≤1.5 with the ratio (A/B) of the eigentone B of the support-column main body under the state of vibration damping parts partly.
Description of drawings
Fig. 1 illustrates the lateral view of the related pillar of an embodiment of the invention with vibration absorber and pillar.
Fig. 2 illustrates the lateral view that the pillar that is installed on support-column main body is used vibration absorber.
Fig. 3 illustrates the vertical view that the pillar that is installed on support-column main body is used vibration absorber.
Fig. 4 is the figure that observes the carriage that is installed on support-column main body from downside.
Fig. 5 is illustrated in the figure that pillar produces the state after vibrating.
Fig. 6 illustrates the figure of the related pillar of alternate manner with vibration absorber.
Fig. 7 is the figure that the related carriage of alternate manner is shown.
Fig. 8 illustrates the figure of the related pillar of alternate manner with vibration absorber.
Fig. 9 illustrates the figure of the related pillar of alternate manner with vibration absorber.
Figure 10 is the figure that shows the state after pillar produces vibration at the related pillar of alternate manner with vibration absorber.
Figure 11 illustrates the figure of the related pillar of alternate manner with vibration absorber.
Figure 12 illustrates the figure of the related pillar of alternate manner with vibration absorber.
Drawing reference numeral explanation: 100,100B, 100C ... pillar; 102,102B, 102C ... support-column main body; 104 ... street lamp; 121 ... upstanding portion; 122 ... ledge; 123 ... leading section; 200,200A, 200B, 200C ... the pillar vibration absorber; 202,202A, 202B, 202C ... carriage; 204,204B, 204C ... rubber; 206,206B, 206C ... counterweight; 222 ... installation portion; 224,224A, 224B, 224C ... flange part (flange); 226,226A, 226C ... peritreme portion; 227,227A ... inserting hole; 228,228A, 228C ... constriction; 231,231a, 231b ... involution piece; 232,232a, 232b ... involution piece; 234,234A ... bolt and nut; 236 ... link parts; 237 ... divisional plane; 238,239 ... restraining plate; 252 ... installing plate (installing component); 254 ... installing plate (installing component); Use counterweight 262.... adjust; 270 ... sliding bearing; 276 ... hinge; 278 ... bolster; 300 ... be set up portion; C ... concentric circles; O ... central axis.
The specific embodiment
Below, based on accompanying drawing the related pillar of an embodiment of the invention is described with vibration absorber and pillar.In addition, the present invention is not limited to following embodiment.And, the parts or the position of playing same function suitably marked identical label.Accompanying drawing is briefly described for auxiliary understanding invention, may not represent material object.
" pillar 100 "
Fig. 1 supplies the outside drawing of the related pillar of an embodiment of the invention with the pillar 100 of vibration absorber installation.As shown in Figure 1, this pillar 100 possesses support-column main body 102 and pillar vibration absorber 200.
" support-column main body 102 "
Support-column main body 102 is erected at the portion of being set up 300.Be set up the position (place) that portion 300 is confession pillar 100 settings such as precipice, road of ground, road, viaduct herein.Support-column main body 102 is made of steel pipe.These support-column main body 102 vertical height that extend to regulation, its front end is crooked and court is radially outstanding, installs for street lamp 104.Like this, support-column main body 102 possesses: the upstanding portion 121 of vertical extension; Crooked outstanding ledge 122; And the leading section 123 that supplies street lamp 104 to install.In the present embodiment, pillar is installed on the upstanding portion 121 of the vertical extension of support-column main body 102 with vibration absorber 200.
" pillar vibration absorber 200 "
As shown in Figure 1, pillar possesses carriage 202, rubber 204 and counterweight 206 with vibration absorber 200.Fig. 2 is installed on the lateral view of the pillar of support-column main body 102 with vibration absorber 200.Fig. 3 is installed on the vertical view of the pillar of support-column main body 102 with vibration absorber 200.
＜carriage 202＞
Carriage 202 is installed on support-column main body 102.In the present embodiment, as shown in Figures 2 and 3, carriage 202 is disk-like member roughly, has installation portion 222 and flange part 224(flange).
Fig. 4 is the figure that observes the carriage 202 that is installed on support-column main body 102 from downside.Installation portion 222 is arranged at the downside of carriage 202.Installation portion 222 is arranged at carriage 202(flange part 224) the center, possess peritreme portion 226 and constriction 228.Peritreme portion 226 has for support-column main body 102 slotting logical inserting holes 227.In the present embodiment, flange part 224 and peritreme portion 226 are divided into the tabular and semicircle tubular of semicircle respectively.Constriction 228 is containment flange portion 224 and peritreme portion 226 under the state that is assemblied in support-column main body 102.In the present embodiment, constriction 228 constitutes and comprises: involution piece 231,232, and this involution piece 231,232 radially extends from the two ends of the peritreme portion 226 that is divided into the semicircle tubular; And this involution piece 231,232 carried out fastening bolt and nut 234.And, in the present embodiment, the fixedly restraining plate 238,239 of involutory surface is installed in the bottom of flange part 224.Can utilize screw that such restraining plate 238,239 is mounted to and can dismantles.
In the present embodiment, as shown in Figure 1, carriage 202 is installed in half the highly high position than support-column main body 102., utilize the height h1 of the upstanding portion 121 of support-column main body 102 to come the height of regulation support-column main body 102 herein, above-mentioned carriage 202 is installed in half high position of height h2 than upstanding portion 121.Specifically, in the present embodiment, carriage 202 is installed on the top of support-column main body 102.Herein, so that the consistent mode in extreme higher position of the topmost of counterweight 206 and the upstanding portion 121 of support-column main body 102 is adjusted the position of carriage 202.In addition, carriage 202 also can be installed in than comprising the position of ledge 122 and leading section 123 half the height h4 at the height overall h3 of interior support-column main body 102 above more leaning on.
As shown in Figure 4, under the state that utilizes peritreme portion 226 clamp posts main bodys 102, carriage 202 is by carrying out the fastening support-column main body 102 that is fixed in to bolt and nut 234.At carriage 202 rubber 204 is installed.
＜rubber 204＞
In the present embodiment, rubber 204 is installed on the top of the flange part 224 of carriage 202.Rubber 204 constitutes the cylindrical shape of the flange part 224 that can be disposed at carriage 202.Rubber 204 for example can be installed on the flange part 224 of carriage 202 by the sulfuration bonding.
＜counterweight 206＞
In addition, in the present embodiment, carriage 202 can be cut apart, and counterweight 206 can be cut apart too.For example, as shown in Figures 2 and 3, counterweight 206 constitutes and can be linked by the binding parts 236 of bolt and nut or rivet etc. cutting apart in circumferential at least a portion with the mode of cutting apart accordingly cutting apart of carriage 202.In Fig. 2 and Fig. 3, schematically show divisional plane 237, the binding parts 236 of counterweight 206.
" moulding of rubber 204 "
As rubber 204, for example prepared to have the unvulcanized high decay rubber of sheet of thickness, width, the length of regulation.So unvulcanized high decay rubber is wound into cylindrical shape and it is accommodated in the regulation mould.And then the flange part 224 towards an end that is accommodated in the height decay rubber in the mould with cylindrical shape against carriage 202 is towards the other end against counterweight 206.At this moment, in advance in the flange part 224 and counterweight 206 coating rubbers sulfuration cementing agent (for example, the LORD society (U.S.: LORD Far East, Inc) system: vulcanization of rubber cementing agent (trade name " Kai Muluoke ")).And then, under this state, by sulfuration heating and to the high decay of rubber 204(rubber) carry out moulding, and with the flange part 224 of carriage 202 with rubber 204 bondings and with rubber 204 and counterweight 206 bondings.At this moment, for example can adjust eigentone and the fade performance of pillar according to the height of rubber 204, hardness (for example loss coefficient tan δ) and then according to the weight of counterweight 206 with vibration absorber 200.
" at the effect of vibration "
According to this pillar 100, counterweight 206 is supported on the carriage 202 that is mounted at support-column main body 102 via rubber 204.Therefore, when because of traffic vibration, wind or earthquake etc. when support-column main body 102 produces vibration, counterweight 206 is with respect to support-column main body 102 vibrations.And then in the present embodiment, pillar is installed in half highly high position than support-column main body 102 with vibration absorber.Especially, counterweight 206 is installed on the extreme higher position of the upstanding portion 121 of support-column main body 102.
Support-column main body 102 is in the single order vibration, and the upstanding portion 121 of support-column main body 102 is big more by the top Oscillation Amplitude more.Therefore, be installed on the also vibration significantly of carriage 202 on the top of support-column main body 102.At this moment, with the motion of carriage 202 accordingly, inertia force acts on the counterweight 206 of pillar with vibration absorber 200.Owing to counterweight 206 is supported via rubber 204, therefore can be with respect to carriage 202 vibrations.And in the present embodiment, counterweight 206 is a circular plate shape, is supported on along a plurality of rubber 204 of the circumferential configuration of carriage 202.
And, with the vibration of such counterweight 206 accordingly, produce shear strains at rubber 204.Can also make the high decay of the rubber 204(rubber that is accompanied by this shear strain), absorption is in the energy of the vibration of support-column main body 102.At this moment, can absorb the suitable energy of area that the hysteresis loop (hysteresis loop) that produces is surrounded with being accompanied by the shear strain of rubber 204.And, with vibration absorber 200,, all can make the vibration attenuation that acts on support-column main body 102 regardless of the direction of vibrating according to this pillar.
More than, the pillar related to an embodiment of the invention is illustrated with vibration absorber 200 and pillar 100.Pillar involved in the present invention is not limited to above-mentioned embodiment with vibration absorber and pillar.Below, various variation are described.The variation of herein enumerating can be distinguished use independently, and also can suitably be used in combination.
For example, though counterweight 206 is bonded in rubber 204 in the above-described embodiment, counterweight 206 also can be mounted to and can change at rubber 204.Thus, for example, counterweight 206 counterweight that varies in weight can be replaced with, thereby the weight of pillar can be changed with the counterweight 206 of vibration absorber 200.Thus, when for example being installed on support-column main body 102 at the scene, the counterweight 206 of suitable weight can be installed suitably.Fig. 6 shows the related pillar of alternate manner vibration absorber 200A.In this case, as shown in Figure 6, can in advance installing component (for example, installing plate 252) be bonded in rubber 204, and in the mode that can change counterweight 206 be installed at this installing component 252.
And, can form the weight that can adjust counterweight 206.For example, can form at the optional position of counterweight 206 installation quality body.According to such structure, can suitably adjust the weight of pillar with the counterweight 206 of vibration absorber 200.For example, can form installing hole (screwed hole), adjust with counterweight 262 thereby suitably install in the optional position of counterweight 206.Such adjustment for example can be made of the heavier metal of the such proportion of tungsten with counterweight 262.
For example shown in Figure 1, in the front end bending of support-column main body 102 and under radially outstanding situation, consider this giving prominence to, can around support-column main body 102, adjust the weight of counterweight 206.Thus, can make the action of the support-column main body 102 when producing vibration stable.
And rubber 204 can be installed in carriage 202(flange part 224 in the mode that can change).Thus, for example, rubber 204 can be replaced with at the different rubber of the loss coefficient of shear strain.And,, therefore when safeguarding, cost can be suppressed to less even under the situation of rubber 204, also can only carry out the replacing of rubber 204 because of long-term use deterioration.Preferably, in this case, for example make installing component (for example, installing plate 254) be bonded in rubber 204 in advance, be mounted to and change at carriage 202 via this installing component 254.
＜sliding bearing 270＞
And as shown in Figure 6, rubber 204 and counterweight 206 can possess sliding bearing 270, and this sliding bearing 270 is installed on the upside of flange part 224, supporting counterweight 206 between counterweight 206 and flange part 224.Herein, sliding bearing 270 makes the parts 271 that are installed on flange part 224, overlapping with the parts 272 that are installed on counterweight 206, supports the load of counterweight 206 by the parts 271 that are installed on flange part 224.And then constitute: with the shear displacemant of counterweight 206 accordingly, the parts 272 that are installed on counterweight 206 carry out relative slip with respect to the parts 271 that are installed on flange part 224 and move.And sliding bearing 270 is to constitute with the roughly the same height of rubber 204.
＜hinge 276＞
And carriage 202 can be the parts of aforesaid ring-type.And carriage 202 can upwards be cut apart in week, can possess the constraint component (for example, bolt and nut 234) of constraint carriage 202 under the state of all sides that are installed on pillar.Carriage 202 is not limited to such mode.For example, Fig. 7 shows the related carriage 202A of alternate manner.As shown in Figure 7, this carriage 202A can upwards be cut apart in week, and possessed the hinge 276 of the parts binding that will upwards cut apart in week.
In example shown in Figure 7, the involution piece 231a, the 232a that radially extend from the end of the 226A of peritreme portion that is divided into the semicircle tubular are along the outer peripheral edges portion that radially extends to flange part 224A of the flange part 224A of carriage 202A.Hinge 276 is arranged at the outer peripheral edges portion of flange part 224A, and involution piece 231a, 232a are connected to can bending.Be provided with constriction 228A at the other end to involution piece 231b, the 232b that opposition side extends from the 226A of peritreme portion.Constriction 228A carries out fastening bolt and nut 234A to it and constitutes making under the overlapping state of this involution piece 231b, 232b.
Like this, according to possessing to constituting the mode of the hinge 276 that can link at each parts of the carriage 202A of upwards cutting apart in week, owing to reduce the installation position based on bolt and nut 234A, therefore can be easily to support-column main body 102 installation bracket 202A.
＜bolster 278＞
And, as shown in Figure 7, can bolster 278 be installed herein at the installation portion (being the interior week of the inserting hole 227A of the 226A of peritreme portion) of carriage 202A.By bolster 278 is installed, can prevent to damage support-column main body 102.Such bolster 278 for example can be made of the sheet material of the rubber system that possesses desirable strength.By adopting suitable rubber, can prevent the slip of carriage 202A and support-column main body 102, and can prevent that carriage 202A from departing from support-column main body 102 as bolster 278.
And, can dispose a plurality of rubber 204 as described above respectively.In this case, as shown in Figure 3, rubber 204 can dispose along concentric circles C with respect to the axis of the pillar of installing for carriage 202 100.
Fig. 8 and Fig. 9 show related pillar 100B of alternate manner and pillar vibration absorber 200B.As Fig. 8 and shown in Figure 9, this pillar possesses 4 independently vibration damping portion (1)～(4) with vibration absorber 200B.Each vibration damping portion (1)～(4) possesses flange 224B(carriage 202B), rubber 204B and counterweight 206B.
Herein, flange 224B is the sheet material that extends with towards the radially outstanding mode of support-column main body 102B.In the present embodiment, flange 224B is welded in the outer peripheral face of support-column main body 102B.And 4 flange part 224B are in the upwards configuration equably of the week of support-column main body 102B.And, in the present embodiment,, dispose rubber 204B and counterweight 206B along concentric circles C with respect to the central axis O of support-column main body 102B at each flange part 224B.
Like this, flange part 224B(carriage 202B) can fix (being welding in the present embodiment) in support-column main body 102B.And, disposing rubber 204B and counterweight 206B with respect to the central axis O of support-column main body 102B along concentric circles C, inertia force acts on the counterweight 206B that upwards disposes equably in week with respect to support-column main body 102B thus.Like this, by balancedly dispose rubber 204B and counterweight 206B with respect to support-column main body 102B, the vibration of support-column main body 102B is decayed swimmingly.
And in the present embodiment, counterweight 206B is independent separately.In this case, after vibration acted on support-column main body 102B, as shown in figure 10, counterweight 206B swung on roughly the same direction with respect to support-column main body 102B immediately because of inertia force.Because counterweight 206B swings independently of one another, thereby also swing in different directions sometimes after this.At this moment, can make the intensity (fade performance) of the weight of counterweight 206B and rubber 204B different separately.Thus, can change the eigentone of rubber 204B and counterweight 206B respectively.Thus, the vibration that can be designed so that support-column main body 102B decays in more early stage.And, can make the action of the support-column main body 102B when having acted on vibration stable.
And, Fig. 8 and pillar shown in Figure 9 with vibration absorber 200B in, 4 rubber 204B upwards dispose in the week of support-column main body 102B respectively equably with counterweight 206B.In this case, the quantity of rubber 204B and counterweight 206B is not limited to 4.For example, can also be 3,5 or 6 rubber 204B and counterweight 206B circumferential configuration along support-column main body 102B.And a plurality of rubber 204B and counterweight 206B can also can dispose unevenly respectively in the upwards configuration equably of the week of support-column main body 102B.And, a plurality of rubber 204B and counterweight 206B can be not yet along the concentric circles C configuration of support-column main body 102B.Wherein, by balancedly disposing a plurality of rubber 204B and counterweight 206B, can make support-column main body 102B and pillar stable with the action of vibration absorber 200B.For example upwards dispose equably in week along concentric circles, can make pillar body 102B and pillar stable with the action of vibration absorber 200B by axis with respect to support-column main body.Preferably, for example pillar is disposed at the center of gravity of vibration absorber 200B on the central axis of support-column main body 102B or near it.
For example shown in Figure 11, pillar can dispose two rubber 204B and counterweight 206B with vibration absorber 200B around support-column main body 102B.In this case, rubber 204B and counterweight 206B for example can be configured with 90 angles of spending with respect to the central axis O of support-column main body 102B.
And, the pillar 100C shown in the image pattern 12 and pillar with vibration absorber 200C like that, rubber 204C and counterweight 206C can be installed on flange part 224C(carriage 202C) downside.In Figure 12, label 102C represents support-column main body, and label 222C represents installation portion, and label 226C represents peritreme portion, and label 228C represents constriction, and label 234C represents bolt and nut.
The embodiment of＜rubber 204＞
Herein, preferably, for example adopt shear strain be 3%～20% o'clock loss coefficient tan δ be more than 0.2 the decay of the height below 1.2 rubber as above-mentioned rubber 204.By using such rubber, can suppress the vibration of support-column main body 102 effectively.More preferably, shear strain is that 3%～20% o'clock loss coefficient tan δ is more than 0.3, and in addition, shear strain is that 3%～20% o'clock loss coefficient tan δ is below 1.0.
The inventor has made the pillar 100 of above-mentioned pillar with vibration absorber 200 has been installed, and pillar is verified with the effect of vibration absorber 200.When pillar (support-column main body) having been applied the vibration of regulation, the time till converging to below 10% until amplitude is estimated.Specifically, herein, utilization adds the machine that shakes the bottom of support-column main body 102 is applied the vibration suitable with the intrinsic vibration of support-column main body 102 (being 2Hz herein), and utilizes the acceleration transducer on the top that is installed on support-column main body 102 that vibration acceleration is measured.And then, make in the moment that vibration acceleration reaches 0.3G to add the machine that shakes and stop, to measuring the die-away time (reaching the time till (it is following to reach its 0.03G of 1/10) below 10% for vibration acceleration herein) of the acceleration on pillar top.
Table 1 shows the result of such test.
Table 1
＜sample 1＞
Herein, sample 1 is that mounting column is not with the situation of vibration absorber, and when pillar (support-column main body) having been applied the vibration of regulation, the time that vibration acceleration converges to till (reaching its 0.03G of 1/10) below 10% is 300 seconds.Herein, support-column main body 102 by the height h1 of upstanding portion 121 be 10m, base diameter (external diameter) for 150mm, thickness with taper of 1/100 (highly every increase 100mm then diameter reduces taper about 1mm) be that the hollow steel pipe of 5mm constitutes (with reference to Fig. 1).The top front end bending of pillar, the side radially of court is outstanding, and the street lamp of about 15kg is installed.The eigentone B of the single order vibration mode on the horizontal direction of this support-column main body 102 is 2.0Hz.Sample 2～8 for table 1 also uses same support-column main body 102.
The eigentone B of＜support-column main body 102＞
Herein, for example acceleration transducer (pickup) is installed, and near this acceleration transducer, is utilized jump bit to kowtow and hit support-column main body 102 on the top of support-column main body 102.At this moment, the vibration acceleration that utilizes this acceleration transducer to measure gained is carried out Fourier transform, obtain the eigentone B of support-column main body 102 thus.Yet the eigentone B of support-column main body 102 also can find the solution by following mathematical expression (mathematical expression 1).
B: the single order eigentone of support-column main body (first natural frequency) (Hz)
E: the spring rate of support-column main body (N/m)
I: the section moment of inertia of support-column main body (moment of inertia of area) (m4)
L: the height overall of support-column main body (m)
ρ: the Unit Weight of support-column main body
＜sample 2＞
In sample 2, as shown in Figure 2, the pillar of form that uses the counterweight of ring-type is installed on the (position of about 10m: h1), top of the upstanding portion 121 of support-column main body 102 with vibration absorber 200.Herein, pillar possesses the flange part 224 that diameter is the roughly circular plate shape of 300mm with the carriage 202 of vibration absorber 200.And pillar is with the rubber 204 of vibration absorber 200, is diameter under the natural length and is 80mm, highly is the drum of 40mm.Rubber 204 with center configuration at the distance flange part 224(support-column main body 102 of circular plate shape roughly) the center be that mode on the concentric circles of radius 125mm is upwards installed 4 equably in week.Use external diameter (diameter) to be 300mm and internal diameter (diameter) counterweight 206 as the drum of 200mm.Counterweight 206 is a concentric circles with the circle that disposes for rubber 204, is installed on the upper end of rubber 204.Wherein, counterweight 206 varies in weight according to sample,, makes by identical materials herein, adjusts weight according to the thickness (highly) of counterweight 206.
The eigentone A of＜pillar usefulness vibration absorber 200＞
, for example pillar is fixed in pedestal with the carriage 202 of vibration absorber 200 herein, degree of will speed up sensor (pickup) is installed on counterweight 206.And then, utilize jump bit to kowtow and hit counterweight 206.At this moment, the vibration acceleration that utilization is installed on this acceleration transducer measurement gained of counterweight 206 carries out Fourier transform, obtains the eigentone A of pillar with vibration absorber 200 thus.
In sample 2, be that 3%～20% o'clock loss coefficient tan δ is that 0.25 height subtracts the rubber that declines (high decay rubber 2) as rubber 204 with shear strain, the weight of counterweight 206 is made as 12kg.Pillar is made as about 1.0 times of eigentone of about 2.0Hz(support-column main body with the eigentone of vibration absorber 200).In such sample 2, when pillar (support-column main body) had been applied the vibration of regulation, the time till amplitude converges to below 10% was 45 seconds.Like this, in sample 2, compare with the sample 1 of vibration absorber 200 with mounting column not, the time till the vibration convergence is approximately 3/20.
＜sample 3＞
Except being that 3%～20% o'clock loss coefficient tan δ is that as rubber 204 this point, it is identical with sample 2 that sample 3 constitutes for 0.35 height decay rubber (high decay rubber 1) with shear strain.In such sample 3, when pillar (support-column main body) had been applied the vibration of regulation, the time till amplitude converges to below 10% was 10 seconds.Like this, in sample 3, compare with the sample 1 of vibration absorber 200 with mounting column not, the time till the vibration convergence is about 1/30.
＜sample 4＞
(the about position of 5m: h2) this point, it is identical with sample 3 that sample 4 constitutes except pillar is installed on the pars intermedia of the upstanding portion 121 of support-column main body 102 with vibration absorber 200.In such sample 4, when pillar (support-column main body) had been applied the vibration of regulation, the time till amplitude converges to below 10% was 25 seconds.Like this, compare with the sample 1 of vibration absorber 200 with mounting column not, the time till the vibration convergence is about 1/12.
＜sample 5＞
(position that is about 50cm: h5) this point, it is identical with sample 3 that sample 5 constitutes except the bottom of the upstanding portion 121 that is installed on support-column main body 102.In such sample 5, when pillar (support-column main body) had been applied the vibration of regulation, the time till amplitude converges to below 10% was 45 seconds.Like this, compare with the sample 1 of vibration absorber 200 with mounting column not, the time till the vibration convergence is about 3/20.
＜sample 6＞
Except counterweight 206 being made as lighter 3.0kg and pillar being made as about 1.3 times of eigentone of 2.6Hz(support-column main body with the eigentone of vibration absorber 200) this point, it is identical with sample 3 that sample 6 constitutes.In this case, when pillar (support-column main body) had been applied the vibration of regulation, the time till amplitude converges to below 10% was 30 seconds.Like this, even counterweight 206 is being made as light and the eigentone of pillar with vibration absorber 200 is made as under the condition with higher, compare with the sample 1 of vibration absorber 200 with mounting column not, the time of vibrating till restraining also is about 1/10.
＜sample 7＞
Except about 1.5 times of the eigentone that pillar further is made as the 3.0Hz(support-column main body with the eigentone of vibration absorber 200) this point, it is identical with sample 6 that sample 7 constitutes.In this case, when pillar (support-column main body) had been applied the vibration of regulation, the time till amplitude converges to 10% below was 50 seconds, compared with the sample 1 of vibration absorber 200 with mounting column not, and the time of vibrating till restraining is about 1/6.
＜sample 8＞
In sample 8,, use the pillar vibration absorber 200B of the form that a plurality of independently counterweight 206B are installed as Fig. 8 and shown in Figure 9., as shown in Figure 9, upwards dispose 4 counterweight 206B equably herein, gross weight and the sample 3 of counterweight 206B is made as 12kg in the same manner in week.And using shear strain is that 3%～20% o'clock loss coefficient tan δ is that 0.35 height subtracts the rubber that declines as rubber 204B, and pillar approximately is made as 2.0Hz with the eigentone of vibration absorber 200B.In sample 8, such pillar is installed on the top of the upstanding portion 121 of support-column main body 102 with vibration absorber 200B.Its result, when pillar (support-column main body) had been applied the vibration of regulation, the time till amplitude converges to below 10% was 10 seconds.Like this, for the pillar vibration absorber 200B that a plurality of independently counterweight 206B are installed, in the early stage convergence of the vibration that makes support-column main body 102, also obtained good result.
In addition, in sample 8, as Fig. 8 and shown in Figure 9, the flange part 224B that extends from support-column main body 102 towards radial outside upwards disposes 4 equably in week.Pillar is diameter with the rubber 204B of vibration absorber 200B and is 80mm, highly is the drum of 40mm under natural length.Rubber 204B is installed on respectively on 4 flange part 224B.This rubber 204B is that the mode on the concentric circles of radius 125mm is installed in the center of distance support-column main body 102 with center configuration.Counterweight 206B is installed on the upper end of this rubber 204B respectively.
The eigentone A of＜pillar usefulness vibration absorber 200B＞
Herein, the pillar vibration absorber 200B for Fig. 8 and form shown in Figure 9 is equipped with one group of vibration damping portion (1)～(4) that a plurality of (in the illustrative example being 4) are made of rubber 204B, counterweight 206B and flange part 224B.In this case, can obtain eigentone respectively at each vibration damping portion (1)～(4) that constitutes by rubber 204B, counterweight 206B and flange part 224B.For the eigentone of vibration damping portion (1)～(4), pillar is fixed in pedestal with the carriage 202B of vibration absorber 200B, and degree of will speed up sensor (pickup) is installed on each counterweight 206B.And then, utilize jump bit to kowtow and hit each counterweight 206B.At this moment, the vibration acceleration that utilization is installed on the acceleration transducer measurement gained of each counterweight 206B carries out Fourier transform, can obtain the eigentone A of pillar with vibration absorber 200B thus.In addition, when the structure of rubber 204B, counterweight 206B and flange part 224B in each vibration damping portion (1)～(4) is roughly the same, can be made as the eigentone A of each vibration damping portion (1)～(4) roughly the same.
In such sample 8, on the top of support-column main body 102B, one group of vibration absorber by rubber 204B, counterweight 206B and flange part 224B constitute is equipped with 4 groups around support-column main body 102B.The shear strain of the rubber 204B of each vibration damping portion (1)～(4) is 3%～20% o'clock loss coefficient tan δ, the weight of counterweight 206, the eigentone Ao(Hz of each vibration damping portion (1)～(4)) as shown in table 2.In this case, the eigentone Ao of each vibration damping portion (1)～(4) is respectively 2.0, and pillar is defined as 2.0 with the eigentone A of vibration absorber 200B integral body.
Table 2
| Vibration damping portion (1) | Vibration damping portion (2) | Vibration damping portion (3) | Vibration damping portion (4) | |
| The loss coefficient tan δ of rubber | ?0.35 | ?0.35 | ?0.35 | ?0.35 |
| Counterweight weight (kg) | ?3 | ?3 | ?3 | ?3 |
| Pillar is used the installation site of vibration absorber | Top | Top | Top | Top |
| The eigentone Ao of each vibration damping portion (Hz) | ?2.0 | ?2.0 | ?2.0 | ?2.0 |
In addition, the eigentone Ao(Hz in each vibration damping portion (1)～(4)) under the different situation, pillar has eigentone Ao(Hz with each vibration damping portion (1)～(4) with vibration absorber 200B integral body) corresponding a plurality of eigentone A.For example, if the eigentone Ao(Hz of each vibration damping portion (1)～(4)) be respectively 1.2,1.5,1.7,2.0, then pillar has above-mentioned 4 eigentones with vibration absorber 200B.Under these circumstances, constitute the ratio (A/B) of pillar for pillar with the eigentone A of vibration damping part (pillar with vibration absorber 200,200B), with not being equipped with, produced 4 with the eigentone B of the support-column main body 102 under the state of vibration damping parts partly.
＜sample 9＞
Except being that 3%～20% o'clock loss coefficient tan δ is that as rubber 204 this point, sample 9 constitutes roughly identical with sample 3 for 1.1 height decay rubber (high decay rubber 3) with shear strain.In this case, when pillar (support-column main body) had been applied the vibration of regulation, the time till amplitude converges to below 10% was 50 seconds, and by mounting column vibration absorber 200, the time till the vibration convergence is about 1/6.
＜sample 10＞
Except counterweight 206 being increased the weight of for 24kg and pillar being made as about 0.7 times of eigentone of 1.4Hz(support-column main body with the eigentone of vibration absorber 200), it is identical with sample 3 that sample 10 constitutes.In this case, when pillar (support-column main body) had been applied the vibration of regulation, the time till amplitude converges to below 10% was 30 seconds.Even increase the weight of like this under counterweight 206 and the situation of reduction pillar with the eigentone of vibration absorber 200, by mounting column vibration absorber 200, the time till the vibration convergence also is approximately 1/10.
＜sample 11＞
Except counterweight 206 further being increased the weight of for 36kg and pillar being made as about 0.5 times of eigentone of 1.0Hz(support-column main body with the eigentone of vibration absorber 200), it is identical with sample 3 that sample 11 constitutes.In this case, when pillar (support-column main body) had been applied the vibration of regulation, the time till amplitude converges to below 10% was 50 seconds.Even so further increase the weight of counterweight 206 and further reduce under the situation of pillar with the eigentone of vibration absorber 200, with vibration absorber 200, the time till the vibration convergence also is approximately 1/6 by mounting column.
Herein, 0.25), be 3%～20% o'clock loss coefficient tan δ as the height decay rubber 3(shear strain of base rubber with natural rubber 0.35), be 3%～20% o'clock loss coefficient tan δ as the height decay rubber 2(shear strain of base rubber with EPDM as the formed body 204 of height decay rubber, having used with natural rubber is 3%～20% o'clock loss coefficient tan δ as the height decay rubber 1(shear strain of base rubber::: 1.1).The cooperation of such height decay rubber 1, high decay rubber 2 and high decay rubber 3 has been shown in the table 3.Herein, additive has also used silica flour, process oil (process oil), vulcanizing material (sulphur), vulcanization accelerator except base rubber.Silica flour needs process oil when cooperating with rubber, process oil preferably is about about 1/3 according to the weight ratio of silicon.The addition that each additive has been shown in the table 3 is with respect to the addition as 100 parts of weight portions of the natural rubber of base rubber or EPDM.
Table 3
Use the ESPRENE301A of Sumitomo Chemical Co's system as EPDM herein.And superfine silica gel powder (AEROSIL) R972 that uses Japanese superfine silica gel powder Co., Ltd. system is as silica flour.And the DIANA PROCESS OIL NS that uses Idemitsu Kosen Co., Ltd. is as process oil.And the NOCCELER DZ that uses the emerging chemical industry of imperial palace Co., Ltd. is as vulcanization accelerator 1.And the NOCCELER TS that uses the emerging chemical industry of imperial palace Co., Ltd. is as vulcanization accelerator 2.
In addition, rubber 204,204B are that 3%～20% o'clock loss coefficient tan δ is about more than 0.2 and gets final product below 1.2 in shear strain.Such loss coefficient tan δ is preferably more than 0.25, more preferably more than 0.3.And such loss coefficient tan δ is more preferably below 1.1, more preferably below 1.0.Thus, can make the vibration that produces at support-column main body in more early stage decay.
And, by above-mentioned flange part 224,224B(carriage 202, carriage 202B), the pillar that constitutes of rubber 204,204B and counterweight 206,206B is with the eigentone A of vibration damping part (pillar with vibration absorber 200,200B), do not constitute the ratio (A/B) of pillar with being equipped with, be about 0.5 ≦ (A/B) ≦ 1.5 and get final product with the eigentone B of the support-column main body 102 under the state of the parts of vibration damping part.In addition, the ratio (A/B) of such eigentone is preferably 0.7 ≦ (A/B), and more preferably 0.80 ≦ (A/B), more preferably 0.90 ≦ (A/B).And, be preferably (A/B) ≦ 1.30, more preferably (A/B) ≦ 1.20, more preferably (A/B) ≦ 1.10.Thus, can make the vibration that produces at support-column main body in more early stage decay.
And, image pattern 8 and pillar shown in Figure 9 are used vibration absorber 200B in this wise, have a plurality of vibration damping portions (1)～(4) with vibration absorber 200B and each vibration damping portion (1)～when (4) had different eigentones, pillar had shown a plurality of eigentones with vibration absorber 200B at textural pillar.At this moment, can produce a plurality of above-mentioned than (A/B).In this case, as long as a plurality of than in (A/B) at least one is in above-mentioned scope.Thus, can expect the vibration that produces at support-column main body effect in more early stage decay.
And preferably, pillar is with the flange part 224(carriage 202 of vibration absorber 200) be installed in support-column main body 102 half height the position or than half highly high position of support-column main body 102.Thus, can make the vibration that produces at support-column main body, and can more effectively make pillar vibration absorber 200 performance functions in more early stage decay.
More than, though an embodiment of the invention related pillar and pillar are illustrated with vibration absorber, the present invention is not limited to above-mentioned embodiment.
For example, though show the pillar that road sign is used in the above-described embodiment for example, but pillar involved in the present invention and pillar are not limited to the purposes that road sign is used with vibration absorber, for example, can also be used for the various pillars of the pillar of antenna, the pillar of extension flag etc.
Claims (22)
1. pillar vibration absorber is characterized in that possessing:
Carriage, this carriage have installation portion that is installed on pillar and the flange part that extends from described installation portion towards radial outside;
Be installed on the rubber of the top or the bottom of described flange part; And
In a side opposite, be installed on the counterweight of described rubber with described flange part.
2. pillar vibration absorber according to claim 1 is characterized in that,
Described counterweight can be changed.
3. pillar vibration absorber according to claim 1 and 2 is characterized in that,
Described rubber can be changed.
4. according to each described pillar vibration absorber in the claim 1 to 3, it is characterized in that,
Described carriage is the parts of ring-type that are installed on all sides of the pillar of installing for described carriage.
5. pillar vibration absorber according to claim 4 is characterized in that,
Described carriage upwards can be cut apart in week, and possessed the constraint component that is installed on constraint carriage under the state of all sides of pillar at described carriage.
6. pillar vibration absorber according to claim 5 is characterized in that,
Described carriage possesses the hinge that the parts of upwards cutting apart in week are linked.
7. according to each described pillar vibration absorber in the claim 1 to 6, it is characterized in that,
Described rubber and described counterweight dispose a plurality of respectively.
8. pillar vibration absorber according to claim 7 is characterized in that,
Described rubber and described counterweight dispose along concentric circles with respect to the axis of the pillar of installing for described carriage.
9. according to each described pillar vibration absorber in the claim 1 to 6, it is characterized in that,
Described counterweight is the parts of ring-type, and described rubber phase supports described counterweight for the pillar of installing for described carriage in a plurality of positions that make progress in week.
10. according to each described pillar vibration absorber in the claim 1 to 9, it is characterized in that,
Described rubber and described counterweight are installed on the upside of described flange part, possess the sliding bearing of the described counterweight of supporting between described counterweight and flange part.
11. according to each described pillar vibration absorber in the claim 1 to 10, it is characterized in that,
Described rubber is that shear strain is that 3%～20% o'clock loss coefficient tan δ is more than 0.2 and 1.2 following height decay rubber.
12. a pillar is characterized in that possessing:
Be erected at the support-column main body of the portion of being set up;
Flange, this flange is installed on described support-column main body, and extends towards radial outside from described support-column main body;
Be installed on the rubber of the top or the bottom of described flange; And
In a side opposite, be installed on the counterweight of described rubber with described flange.
13. pillar according to claim 12 is characterized in that,
Described counterweight can be changed.
14. according to claim 12 or 13 described pillars, it is characterized in that,
Described rubber can be changed.
15. according to each described pillar in the claim 12 to 14, it is characterized in that,
Described flange is at the parts of ring-shaped continuous that make progress in the week of described support-column main body.
16. according to each described pillar in the claim 12 to 15, it is characterized in that,
Described rubber and described counterweight are a plurality of along circumferentially disposing respectively of described support-column main body.
17. pillar according to claim 16 is characterized in that,
Described rubber and described counterweight dispose along concentric circles with respect to the axis of described support-column main body.
18. according to each described pillar in the claim 12 to 15, it is characterized in that,
Described counterweight is the parts of ring-type, and described rubber phase supports described counterweight for described support-column main body in a plurality of positions that make progress in week.
19. according to each described pillar in the claim 12 to 18, it is characterized in that,
Described rubber and described counterweight are installed on the upside of described flange part, possess the sliding bearing of the described counterweight of supporting between described counterweight and flange part.
20. according to each described pillar in the claim 12 to 19, it is characterized in that,
Described flange be installed on described support-column main body half height the position or than half highly high position of described support-column main body.
21. according to each described pillar in the claim 12 to 20, it is characterized in that,
Described rubber is that shear strain is that 3%～20% o'clock loss coefficient tan δ is more than 0.2 and 1.2 following height decay rubber.
22. according to each described pillar in the claim 12 to 21, it is characterized in that,
The pillar that is made of described flange, described rubber and described counterweight is with the eigentone A of vibration damping part, and is not equipped with that to constitute this pillar be 0.5≤(A/B)≤1.5 with the ratio (A/B) of the eigentone B of the described support-column main body under the state of the parts of vibration damping part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012011356A JP5544380B2 (en) | 2012-01-23 | 2012-01-23 | Vibration control device for column and column |
| JP2012-011356 | 2012-01-23 |
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| Publication Number | Publication Date |
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| CN103216019A true CN103216019A (en) | 2013-07-24 |
| CN103216019B CN103216019B (en) | 2016-12-21 |
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| CN201210266538.8A Expired - Fee Related CN103216019B (en) | 2012-01-23 | 2012-07-30 | Pillar vibration absorber and pillar |
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| JP (1) | JP5544380B2 (en) |
| CN (1) | CN103216019B (en) |
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| JP6683226B2 (en) * | 2018-08-24 | 2020-04-15 | 住友ゴム工業株式会社 | Vibration control device |
| JP7100943B2 (en) * | 2019-03-16 | 2022-07-14 | 株式会社奥村組 | Vibration control mechanism |
| WO2021250768A1 (en) * | 2020-06-09 | 2021-12-16 | 株式会社フコク | Vibration prevention device for wiper and wiper blade |
| KR102198682B1 (en) * | 2020-11-05 | 2021-01-05 | 주식회사 미지에너텍 | Vibration Control Of Posts On Bridge Using Magnetic |
| JP2024046805A (en) * | 2022-09-26 | 2024-04-05 | 三菱重工業株式会社 | Vibration control device |
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| JP5238245B2 (en) * | 2006-12-25 | 2013-07-17 | 株式会社ブリヂストン | Floor structure |
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| CN1038692A (en) * | 1988-06-10 | 1990-01-10 | 三洋电机株式会社 | Anti-vibration leg unit |
| JPH08258725A (en) * | 1995-03-22 | 1996-10-08 | Tokai Rika Co Ltd | Vibration damping device of steering wheel |
| JPH09143939A (en) * | 1995-11-22 | 1997-06-03 | Sumikin Kozai Kogyo Kk | Road incidental equipment Steel pipe column vibration damping device |
| CN1796862A (en) * | 2004-12-31 | 2006-07-05 | 固特异轮胎和橡胶公司 | Elastomeric/hydraulic vibration isolator with adjustable damping |
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|---|---|
| JP2013148207A (en) | 2013-08-01 |
| JP5544380B2 (en) | 2014-07-09 |
| CN103216019B (en) | 2016-12-21 |
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