CN101549816B - Leading wire vibration-proof structure - Google Patents
Leading wire vibration-proof structure Download PDFInfo
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- CN101549816B CN101549816B CN2009101338508A CN200910133850A CN101549816B CN 101549816 B CN101549816 B CN 101549816B CN 2009101338508 A CN2009101338508 A CN 2009101338508A CN 200910133850 A CN200910133850 A CN 200910133850A CN 101549816 B CN101549816 B CN 101549816B
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- wire
- lead
- liquid
- hollow tube
- vibration
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention provides a leading wire vibration-proof structure capable of fully suppressing the large-amplitude sway of the leading wire due to earthquake or strong wind. A leading wire (3) is connected between an elevator car (2) and a fixation part of a lifting path on which the elevator car lifts and moves and suspend in way of forming an U shaped bending part (8). The fluid (5) is filled intoa flexible hollow tube (4) integrated with the leading wire (3) along the long rim direction of the leading wire (3) and the two ends of the flexible hollow tube (4) open. Thus the fluid (5) freely m oves in the hollow tube (4) to generate the vibration damping function, thereby preventing the sway of the leading wire when the leading wire sways.
Description
Technical field
The present invention relates to a kind of vibration-proof structure, this vibration-proof structure is used for the lead-in wire of vibration damping elevator and rocks because of what other various factors of rocking of high wind or seimic building etc. produced.
Background technology
On the car of elevator, be hung with the lead-in wire between the fixed part of the wall that is connected this lift car and elevating road.This lead-in wire is by being used for to the electric wireline of lift car power supply and being used between the control panel of lift car and elevator, carrying out the transmission of various control signals and the various cables such as signal wire (SW) of reception constitute.
In addition, when the building that possesses elevator has received high wind and has attacked, perhaps because when earthquake having taken place macrocyclic seismic motion etc. especially having taken place cause building to rock, lead-in wire can be swung significantly.In this case, lead-in wire collides with the wall of elevating road, possibly cause other equipment class or parts etc. to damage, and cause lead-in wire itself also to sustain damage.In addition, during with the collision of the wall of elevating road, lead-in wire is wrapped on the equipment class etc. easily, and is wrapped under the state on the equipment class etc. at lead-in wire, if lift car moves, then can have an accident, and causes damages such as equipment class.
Device as the swing that suppresses lead-in wire discloses a kind of shock attenuation unit, in this shock attenuation unit; Be equipped with integratedly and have flexible hollow tube with lead-in wire along the long side direction of lead-in wire; In this hollow tube, enclose liquid or coccoid, and make this liquid or coccoid be trapped in the curve of U word shape, thus; Produce damping of vibrations through gaining in weight and in hollow tube, move and produce the oscillation damping effect, thereby limit rock (with reference to the patent documentation 1) of lead-in wire through liquid etc.
Patent documentation 1: japanese kokai publication hei 5-186164 communique
Yet, in the technology of patent documentation 1, because liquid etc. is enclosed in the hollow tube, thus need the both ends of pipe be sealed, thus the liquid that comprises in the hollow tube etc. is in by hermetically sealed state.Therefore, in when swing lead-in wire, be enclosed in liquid in the hollow tube etc. and receive air resistance and mobile restricted system in the hollow tube.Like this, if mobile being restricted of hollow liquid in pipe etc., when lead-in wire is swung because of the generation of earthquake etc. significantly, be difficult to the swing of vibration damping lead-in wire fully.
Summary of the invention
The objective of the invention is to, a kind of vibration-proof structure of lead-in wire is provided, the vibration-proof structure of this lead-in wire can suppress lead-in wire fully and when earthquake or high wind etc. have taken place, produce significantly swing.
To achieve these goals; The present invention provides a kind of vibration-proof structure of lead-in wire; This lead-in wire is connected between the fixed part of elevating road of lift car and this lift car lifting moving, and hangs with the mode that forms U word curve, and the vibration-proof structure of above-mentioned lead-in wire is characterised in that; Possess flexible hollow tube and be injected into liquid in this hollow tube; This flexible hollow tube forms with lead-in wire on the total length of lead-in wire along the long side direction of lead-in wire, perhaps, the long side direction of lead-in wire forms along forming the part of U word curve along with moving of lift car in lead-in wire on lead-in wire, and with the both ends open of hollow tube.
As according to the invention; Make the structure of the both ends open of hollow tube through employing, can be reduced in the suffered air resistance of liquid when moving in the hollow tube significantly, in addition; Owing to be in the state that can receive air resistance hardly, liquid can freely move in hollow tube.Like this, because liquid can freely swing,, therefore, in influences such as the generation of earthquake or high wind down,, also can obtain the effect of sufficient oscillation damping even lead-in wire is swung significantly so can bring into play excellent damping of vibrations as dynamic vibration absorber.
In this case, the openings at two ends at hollow tube is provided with the regulating mechanism of regulating the opening amount.Like this, can regulate the resistance that passes through the air of opening in hollow tube when liquid moves, therefore, can the decrement ratio of liquid be adjusted to optimal state, thereby, can make liquid bring into play damping of vibrations to greatest extent as dynamic vibration absorber.
In addition, can when the regulating mechanism of regulating the opening amount is set, in hollow tube, inject liquid, perhaps only in hollow tube, inject and have the liquid of the viscosity that configures, and the regulating mechanism of regulating the opening amount is not set with the viscosity that configures.That is to say, suffered resistance when the viscosity relationship of liquid moves in hollow tube to liquid, therefore; For example adopt the viscosity that has with pre-set corresponding regulations such as decrement ratio; Then can regulate amount of decrease power, thereby, can bring into play the damping of vibrations of liquid to greatest extent.
In addition, on the liquid level of the liquid of hollow tube, form the oil film that is difficult to evaporate being injected into, thus, not only can suppress evaporation of liquid, make it possible to keep chronically damping of vibrations, can also prolong the interval of the required handling labor of liquid make-up simultaneously.
According to the vibration-proof structure of lead-in wire of the present invention, can produce sufficient damping of vibrations,, earthquake or high wind etc. produces significantly swing when having taken place thereby can suppress lead-in wire effectively.
Description of drawings
Fig. 1 is the front view of vibration-proof structure of the lead-in wire of this embodiment of expression.
Fig. 2 is the enlarged drawing of a part of vibration-proof structure of the lead-in wire of this embodiment of expression.
Fig. 3 is the front view that is illustrated in the vibration-proof structure of the lead-in wire when elevator is positioned at the superiors in this embodiment.
Fig. 4 is the front view that is illustrated in the vibration-proof structure of the lead-in wire when elevator is positioned at orlop in this embodiment.
Fig. 5 is the front view that is illustrated in the vibration-proof structure of the lead-in wire when connection box is arranged on the base plate of Machine Room in this embodiment.
The drawing reference numeral explanation
1 main rope
2 lift cars
3 lead-in wires (tail cord)
4 flexible pipes
5 liquid
6 connection boxes
7 elevating road walls
8U word curve
9 peristomes
10 winchs
11 straight line portioies
The base plate of 12 Machine Rooms
The specific embodiment
Below, describe with reference to the embodiment of accompanying drawing the vibration-proof structure of the lead-in wire of having used elevator of the present invention.
Fig. 1 is the front view of vibration-proof structure of lead-in wire of the elevator of this embodiment of expression.Fig. 2 is the enlarged drawing of a part of vibration-proof structure of the lead-in wire of this embodiment of expression.Fig. 3 is illustrated in this embodiment, the front view of the vibration-proof structure of the lead-in wire when elevator is positioned at the superiors.Fig. 4 is illustrated in this embodiment, the front view of the vibration-proof structure of the lead-in wire when elevator is positioned at orlop.Fig. 5 is illustrated in this embodiment, the front view of the vibration-proof structure of the lead-in wire when connection box is arranged on the base plate of Machine Room.
As shown in Figure 1, in elevating road, lift car 2 is hanging through main rope 1, and its control signal and electric power etc. transmit between elevating road and lift car 2 through lead-in wire 3.
This lead-in wire 3 generally coats many multicore cables such as control line or electric wireline and is used to support lead-in wire 3 weight through insulating material reinforcement is that steel rope etc. forms.Lead-in wire 3 its sections form rectangle; So that prevent distortion; And with the length of the moving range of having considered lift car 2 U word curve 8 is set, simultaneously its end respectively with lift car 2 be arranged on elevating road wall 7 on and the connection box 6 that is positioned at the intermediate floor of building be connected.
As shown in Figure 2, in the both sides of lead-in wire 3 short side direction (Width), form flexible flexible pipe 4 along the long side direction of lead-in wire 3 respectively.Flexible pipe 4 through based on the bonding of lining cement etc. or based on the harness of coupling member or integrally formed etc. and with lead-in wire 3 integrated setting.This flexible pipe 4 is Free Transform along with lead-in wire 3 distortion, and forms by have insoluble High molecular material etc. with respect to the liquid that is injected into, and in addition, flexible pipe 4 forms the hollow shape that is communicated to the other end from an end of long side direction.
In the pipe of flexible pipe 4, the liquid 5 of the specified amount that injects from the end is trapped in U word curve 8., be formed with peristome 9 here at the two ends of flexible pipe 4, thus the state that two ends is in all the time opened.The opening amount of peristome 9 can through after the regulating mechanism stated regulate.For liquid 5, have no particular limits, can make water etc., but consider from suppressing this angle of evaporation, should not use low-boiling liquid.
In this embodiment, show the example of 2 flexible pipes 4 of configuration.The liquid that is infused in the flexible pipe 4 applies damping force as dynamic vibration absorber to lead-in wire; Therefore, so long as can flexible pipe be arranged to other structure to the configuration of the 3 generation distortion powers that go between yet; And be not limited in said structure; For example, only can be arranged to be provided with in the central authorities of the short side direction of lead-in wire 3 structure of a flexible pipe 4, one adds each one of the both sides structure of three flexible pipes 4 altogether in the middle of perhaps being arranged to.
Because the two ends of flexible pipe 4 are through peristome 9 and by open state, so the liquid 5 that is included in the pipe can freely move.Thereby, being accompanied by moving of lift car 2, the liquid 5 in the pipe also moves, and when vibration has taken place lead-in wire 3, is trapped in the maximum U word curve 8 of vibration.
The position of the U word curve 8 of lead-in wire 3 changes along with the variation of the position of lift car 2.As shown in Figure 3, when lift car 2 was positioned at the superiors, lead-in wire 3 U word curve 8 was positioned at and is arranged on the lifting channel wall 7 and is positioned near the end of connection box 6 one sides of intermediate floor.In addition, as shown in Figure 4, when lift car 2 was positioned at orlop, the U word curve 8 of lead-in wire 3 was positioned near the end of lift car 2 one sides.When lift car 2 was positioned at above-mentioned two positions, the length that can be included in the liquid 5 in the flexible pipe 4 was the shortest.
The two ends of flexible pipe 4 are opening, and therefore, when for example the length of the liquid in being included in flexible pipe 4 was grown than the length of the U word curve 8 of flexible pipe 4, liquid can spill from the peristome 9 of end.Thereby, need make the length that is included in the liquid in the flexible pipe 4 shorter than the length of the U word curve 8 of flexible pipe 4.In the time can't guaranteeing the weight of required liquid by the length of such liquid, then need increase the diameter of flexible pipe 4, perhaps increase the radical of flexible pipe, perhaps use heavy liquid.
In Fig. 1, Fig. 3 and Fig. 4, the situation that is positioned at the intermediate floor of building with connection box 6 is that example is illustrated, but connection box 6 also can be arranged on the top of the intermediate floor of building.As shown in Figure 5, be arranged on 12 last times of base plate of the Machine Room that is provided with winch 10 in connection box 6, even lift car 2 is positioned at the superiors, also there is the straight line portion 11 that does not form U word curve 8 near the lead-in wire 3 the end of connection box side.At this moment, because liquid 5 can not move to the straight line portion 11 of lead-in wire 3, so this straight line portion 11 need not be provided with flexible pipe 4.
When building has taken place significantly to rock because of high wind or building when having taken place significantly to rock because of the long long period seismic motion of earthquake especially period of vibration etc.; Lead-in wire 3 also can be wanted to swing significantly; If but adopt the vibration-proof structure of this embodiment; Then since the liquid 5 that are included in the flexible pipe 4 can in pipe, freely move along with this swing, so can produce effect as dynamic vibration absorber, thereby can be effectively 3 carry out vibration damping to going between.
Below, the example when being used to regulate the regulating mechanism of opening amount to installing in the openings at two ends portion 9 of flexible pipe 4 describes.As long as can the pairs of openings amount regulate, then the structure of this regulating mechanism does not have special restriction, can adopt control cock or the valve etc. of control cock, the self acting of manual type.
Report according to the exploitation aspect of the dynamic vibration absorber that has adopted fluid (is for example said " vibration damping of tuning liquid spring unit to rotatablely moving " of collection of thesis with reference to Japanese mechanics joint performance; NO.974-2,1997, P49-50); For the liquid that is included in the flexible pipe 45 is played a role as dynamic vibration absorber the most effectively; The quality of supposing lead-in wire 3 is m1, when the quality of liquid 5 is m2, need mass ratio μ=m2/m1 be set in about 0.05.According to the above-mentioned relation formula, can obtain the injection rate (quality) of liquid 5.In addition; The eigentone of supposing lead-in wire 3 is f1; When the eigentone of the liquid 5 in the pipe of U word curve 8 is f2, theoretical (for example with reference to " dynam handbook (dynamics handbooks) " bookstore publishing of clear editor man of long pine, P353-P355) towards the storehouse according to the fixed point of dynamic vibration absorber; In order to set optimal tuning, need satisfy the relation of formula (1).
[formula 1]
In addition, the best decrement ratio ζ opt of the intraluminal fluid system of U word curve 8 need satisfy formula (2).
[formula 2]
Shown in (2), play a role the most effectively as dynamic vibration absorber in order to make the liquid that is included in the flexible pipe 45, need the decrement ratio of the intraluminal fluid system of U word curve 8 be regulated (tuning) is best decrement ratio.As this control method; The opening amount that the regulating mechanism at the two ends through being installed in flexible pipe 4 is regulated peristome 9; Apply the resistance of regulation to air, thus, the decrement ratio of the intraluminal fluid system of U word curve 8 is adjusted to the best decrement ratio shown in the formula (2) through peristome 9.
At this, suppose that density of liquid is ρ, the internal diameter of flexible pipe 4 is D, and the displacement of liquid is Xd, and coefficient of flow is α, and the internal diameter of peristome 9 is d, aperture efficiency is (d/D)
2The time, the aperture that the decrement ratio of the intraluminal fluid system of U word curve 8 is adjusted to the required peristome of best decrement ratio 9 is represented by formula (3).
[formula 3]
Like this; With the inner diameter d of the peristome 9 that adopts said method to obtain as expected value; Regulate the opening amount through regulating mechanism, the decrement ratio of liquid 5 is adjusted to optimum regime, bring into play damping of vibrations to greatest extent thereby can make as the liquid 5 of dynamic vibration absorber.
In addition, no matter whether peristome 9 is provided with regulating mechanism,, possibly has dusts in the flexible pipe 4 and get into when opening up the time.Structure in order to be arranged to need not keep in repair need take some measures, and for example at opening part guard shield etc. is set, and does not perhaps make opening make it towards horizontal etc. up.
In addition, after long-term use, the liquid 5 that is included in the flexible pipe 4 may reduce because of evaporation.Structure in order to be arranged to need not keep in repair need take some measures equally, for example use the material be difficult to evaporate be the high liquid of boiling point as liquid 5, perhaps peristome 9 is arranged to the structure that is difficult to evaporate.In addition, also can on the liquid level of liquid 5, form the oil film of the regulation that is difficult to evaporate.
In addition; As the method that the decrement ratio of the intraluminal fluid system of U word curve 8 is regulated (harmony); Method can be listed below: the liquid 5 as being included in the flexible pipe 4 use full-bodied liquid, and the decrement ratio of the intraluminal fluid system of U word curve 8 is adjusted to best decrement ratio.
If the resistance that will produce because of the friction of the inwall of flexible pipe 4 is as amount of decrease power; Then when the length with the liquid in the flexible pipe is made as L; Make viscosity λ that the decrement ratio of the intraluminal fluid system of U word curve 8 becomes the required liquid of best decrement ratio by formula (4) expression, thereby can determine the viscosity λ of liquid 5.
[formula 4]
In addition, become the method for best decrement ratio as the decrement ratio of the intraluminal fluid system that makes U word curve 8, can and with the method and the method for viscosity of regulating liquid 5 of the aperture of regulating peristome 9.At this moment, can be to setting, to obtain best decrement ratio through the resulting decrement ratio of aperture of adjusting peristome 9 with according to the resulting decrement ratio sum of the viscosity of liquid 5.In addition, become the liquid of the proper viscosity of best decrement ratio, can enumerate out silicone oil etc. as the decrement ratio that is difficult to evaporate and have an intraluminal fluid system that can make U word curve 8.
As stated, according to this embodiment, form peristome 9 at the place, two ends of flexible pipe 4; Therefore; Even along with moving of lift car 2, liquid 5 moves to the U word curve of swinging the most easily in the lead-in wire 38, and in U word curve 8, plays a role as dynamic vibration absorber.Thus, even when building has taken place significantly to rock because of high wind, perhaps when building has taken place to rock because of the long long period seismic motion of earthquake especially period of vibration etc., also can be effectively 3 carry out vibration damping to going between.
In addition, in this embodiment, the fixed point theory that adopts dynamic vibration absorber has been described; Through be included in minimal liquid qualities in the flexible pipe 4 come the most effectively to go between 3 carry out vibration damping situation; But, also can not be provided with eigentone is carried out optimal tuning, the decrement ratio of the intraluminal fluid system of U word curve 8 is adjusted to the mechanism of best decrement ratio; Only form this simple structure of opening and adopt at the place, two ends of flexible pipe 4; At this moment, though that effectiveness in vibration suppression is compared when carrying out optimal tuning is less better, also can significantly swing the generation damping of vibrations to the lead-in wire that produces because of earthquake or high wind etc.
And, in this embodiment, be that example is illustrated, but the present invention also can use same vibration-proof structure in the for example balance chain of the bar with U word curve etc. with the lead-in wire 3 of elevator.In addition, except the bar with U word curve of elevator, can also be applied in the bar in other equipment with U word curve.
Claims (3)
1. the vibration-proof structure of a lead-in wire, this lead-in wire are connected between the fixed part of elevating road of lift car and this lift car lifting moving, and hang with the mode that forms U word curve, wherein,
Possess flexible hollow tube and be injected into liquid in this hollow tube; This flexible hollow tube forms with said lead-in wire on the total length of said lead-in wire along the long side direction of said lead-in wire; Perhaps the long side direction along said lead-in wire forms with said lead-in wire on the part of formation U word curve along with moving of said lift car in said lead-in wire; And both ends open with said hollow tube
The open all the time and said openings at the two ends of said hollow tube of said opening are provided with the regulating mechanism of regulating the opening amount, and said liquid can be freely swung among said hollow tube.
2. the vibration-proof structure of lead-in wire as claimed in claim 1 is characterized in that,
Be injected in the said liquid of said hollow tube and have the viscosity that configures.
3. according to claim 1 or claim 2 the vibration-proof structure of lead-in wire is characterized in that,
Be formed with the oil film that is difficult to evaporate being injected on the liquid level of the said liquid of said hollow tube.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-096985 | 2008-04-03 | ||
| JP2008096985A JP5231851B2 (en) | 2008-04-03 | 2008-04-03 | Tail cord damping structure |
| JP2008096985 | 2008-04-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101549816A CN101549816A (en) | 2009-10-07 |
| CN101549816B true CN101549816B (en) | 2012-09-26 |
Family
ID=41154351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101338508A Expired - Fee Related CN101549816B (en) | 2008-04-03 | 2009-04-03 | Leading wire vibration-proof structure |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5231851B2 (en) |
| CN (1) | CN101549816B (en) |
| HK (1) | HK1135670A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6013222B2 (en) * | 2013-02-19 | 2016-10-25 | 株式会社日立製作所 | Elevator |
| JP5621017B1 (en) * | 2013-07-02 | 2014-11-05 | 東芝エレベータ株式会社 | Elevator rope runout suppression system |
| CN109335915B (en) * | 2018-11-16 | 2020-06-12 | 陈程豪 | Building construction elevator safety protection mechanism |
| EP3689805B1 (en) | 2019-01-29 | 2022-01-05 | Prysmian S.p.A. | Elevator system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05186164A (en) * | 1991-11-15 | 1993-07-27 | Mitsubishi Electric Corp | Device for stopping moving cable |
| JPH09151986A (en) * | 1995-11-28 | 1997-06-10 | Mitsubishi Heavy Ind Ltd | U-shaped tank type dynamic vibration absorbing device |
| JP4806272B2 (en) * | 2006-03-01 | 2011-11-02 | 学校法人大阪産業大学 | Vibration attenuator |
-
2008
- 2008-04-03 JP JP2008096985A patent/JP5231851B2/en not_active Expired - Fee Related
-
2009
- 2009-04-03 CN CN2009101338508A patent/CN101549816B/en not_active Expired - Fee Related
-
2010
- 2010-02-24 HK HK10101914.9A patent/HK1135670A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN101549816A (en) | 2009-10-07 |
| HK1135670A1 (en) | 2010-06-11 |
| JP5231851B2 (en) | 2013-07-10 |
| JP2009249094A (en) | 2009-10-29 |
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