CN101219748A - Apparatus for restraining longitudinal vibration of elevator cage - Google Patents
Apparatus for restraining longitudinal vibration of elevator cage Download PDFInfo
- Publication number
- CN101219748A CN101219748A CNA2007101865600A CN200710186560A CN101219748A CN 101219748 A CN101219748 A CN 101219748A CN A2007101865600 A CNA2007101865600 A CN A2007101865600A CN 200710186560 A CN200710186560 A CN 200710186560A CN 101219748 A CN101219748 A CN 101219748A
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- Prior art keywords
- lift car
- vibration
- elevator car
- power element
- elevator
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention provides a longitudinal vibration restraining device of an elevator car, capable of restraining the longitudinal vibration of the elevator car in a simple structure and a low cost. The right and left sides at the lower of the elevator car frame of the elevator car composed of an elevator car room and an elevator car frame, are fixed with lower pulleys of the elevator car by a support component, and a main cable is scrolled on the lower pulleys of the elevator car to drive the elevator car, wherein the support component connects the left and right sides by the connecting component, a dynamic vibration absorption part which is disposed between the connecting component and the elevator car frame, is supported by a dynamic vibration absorber spring and is capable of moving up and down, and an execute componet for sending the driving force in up and down direction to the dynamic vibration absorption part.
Description
Technical field
[0001]
The present invention relates to a kind of technology that the elevator of taking amenity is provided, this technology is used the longitudinal vibration that can suppress car with respect to lift car at the dynamic vibration absorber of above-below direction motion.
Background technology
[0002]
The torque that electrical motor produced that elevator generally constitutes winch passes to main hoist cable by the rope sheave on the winch, makes the lift car that is suspended on the main hoist cable carry out lifting.Therefore, when rope sheave or when being used to roll up the deflection sheave of hanging main hoist cable and off-centre or overbalance having occurred, can produce the vibration of the synchronizing frequency that rotatablely moves with it, this vibration can become external interference factor.On the other hand, because the main hoist cable of elevator is an elastic body, so, when this main hoist cable suspends heavy weight objects such as lift car is arranged in midair, can form vibrating system with specific eigentone.These 2 frequencies near the time, can resonate and in lift car, produce the longitudinal vibration that lift car is rocked, make the environment of taking of elevator significantly worsen.And, along with the high stratification of building in recent years, the lifting travel that is arranged on the elevator in the building is more and more longer, and the lifting travel of elevator is long more, then the spring constant of hoist cable is low more, the change of load or external interference factor are also become more to responsive, thereby the uncomfortable longitudinal vibration that causes lift car to produce low frequency makes the ecological deterioration of taking of elevator.
[0003]
As the prior art that prevents the problems referred to above, can list the method for the working accuracy that improves rope sheave or setting accuracy or frequency and the synchronous dynamic buffer (damper) of oscillation frequency that is delivered to lift car from hoist cable are installed in lift car, offset the method (for example with reference to patent documentation 1) of the longitudinal vibration of lift car.And, also has vibration by the sensor car, and according to testing result, make energy disperser briquetting up-and-down movement by power element (actuator), promptly adopt so-called active mass energy disperser (Active Mass Dumper) to suppress the method (for example with reference to patent documentation 2) of the longitudinal vibration of lift car.In addition, also disclose the method that suppresses the lift car lateral vibration on one's own initiative, do not use sensor (for example with reference to patent documentation 3) in the method.
Patent documentation 1: the spy opens the 2005-1773 communique
Patent documentation 2: the spy opens clear 60-106769 communique
Patent documentation 3: the spy opens the 2004-244173 communique
[0004]
If adopt the method for raising rope sheave working accuracy of the prior art or setting accuracy for the problem that prevents lift car generation longitudinal vibration, bring very big burden then can for manufacturing work and erection work, thereby may cause cost to rise.
[0005]
And, when as patent documentation 1, frequency and the synchronous dynamic buffer of oscillation frequency that is delivered on the vibrating system are installed in employing in lift car, when offsetting the method for lift car longitudinal vibration, except can causing the weight of lift car, the installation that has dynamic vibration absorbers increases, and cause outside the problem that cost rises, also exist well-designed lift car and problem such as can be restricted aspect the additional specification weight.And, when only using the system of above-mentioned passive-type (passive), for example also exist physical property significantly to change when vibrating system, perhaps the frequency that will suppress significantly changes when big, is difficult to obtain the problem of good vibration suppression performance.
[0006]
In addition, if when adopting the method for above-mentioned patent documentation 2 described active mass energy dispersers in order to address the above problem, compare with the situation of the dynamic vibration absorbers that only adopts passive mode, can obtain good vibration suppression performance with small-sized and lightweight dynamic vibration absorbers, but need set up new power element and sensor as structural unit in equipment, this will cause cost to increase.And, also exist as can not guarantee the space being set or can not guaranteeing that sensor is provided with the stability of position or because of the external interference factor that can't expect of mechanicalness or electric property or noise join sensor itself or sensor when the position being set can't guaranteeing sufficient vibration detection precision, need carries out the problem of respective handling of sensor.
[0007]
In addition, when not using the structure of passive system adopting 2 described of patent documentations to use the dynamic vibration absorbers of active system, there is following problem, promptly, just in case fault has taken place in power element or sensor, perhaps make these power elements or sensor carry out the required circuit of normal operation when error staties such as broken string have taken place, may cause the vibration of lift car unexpectedly to increase, at this moment, not only can make the passenger feel uncomfortable vibration, but also can make the outer burden of strength member commitment of the various piece that constitutes elevator.
[0008]
On the other hand, patent documentation 3 is described not to be used sensor and suppresses the method for the lateral vibration of lift car with active mode if adopt, then when suppressing longitudinal vibration, owing to can't as inhibition is during lateral vibration, adopt from guiding device directly to the structure of the guide rail application of force, so, need use equipment for inhibiting of vibration with patent documentation 3 different structures.Here, when suppressing the longitudinal vibration of lift car, utilization is by can being an effective method in the method for the antagonistic force that motion produced of the dynamic vibration absorbers of above-below direction motion, but as mentioned above, when further having set up active system, exist the corresponding rising of cost, and need guarantee the stable problems such as space that are provided with of sensor.
Summary of the invention
[0009]
The objective of the invention is to, a kind of apparatus for restraining longitudinal vibration of lift car is provided, it can suppress the longitudinal vibration of lift car with simple structure and low cost.
[0010]
To achieve these goals, technical scheme 1 described invention of the present invention relates to a kind of apparatus for restraining longitudinal vibration of lift car, about below the elevator car frame of the lift car that constitutes by elevator cages and elevator car frame, be provided with the lift car lower pulley by load-carrying element, and volume hangs with main hoist cable and comes described lift car is driven on this lift car lower pulley, the apparatus for restraining longitudinal vibration of this lift car is characterised in that, the load-carrying element that connects described left and right sides by transom, and between this transom and described elevator car frame, be provided with by spring and support and dynamic vibration absorber that can up-and-down movement, and, also have and give power element to this dynamic vibration absorber with the propulsive effort of above-below direction.
[0011]
According to this structure, can apply lift car by the power that in power element, produces and be used to the energy that suppresses to vibrate as the vibration suppression object, can reduce the formation equipment for inhibiting of vibration, be the required force of inertia component of dynamic vibration absorbers, thereby can obtain superior vibration suppression performance by small-sized and lightweight dynamic vibration absorbers.
[0012]
And, the longitudinal vibration device of the lift car that technical scheme 2 described inventions of the present invention are related, it is characterized in that, described lift car and described dynamic vibration absorber are provided with vibration sensor, be transformed to the form that in the computing of control input, to use by the signal converter oscillating component that this vibration sensor is detected, and on this basis, can suppress the control input of the vibration of lift car by the controller computing, and then, behind signal converter, carry out power gain by amplifier, so that the electric current that is enough to drive power element can be provided, will be supplied to the drive current of described power element to impose on power element thus.
[0013]
According to this structure, can be supplied to the drive current of power element with simple structure control.
[0014]
And, the longitudinal vibration device of the lift car that technical scheme 3 described inventions of the present invention are related, it is characterized in that, current value according to described power element, behind signal converter, and use visualizer to infer computing, so that with real-time mode supposition and lift car and the relevant quantity of state of dynamic vibration absorbers hammer, state according to this supposition, can suppress the control input of the vibration of lift car with the real-time mode computing by controller, behind signal converter, carry out power gain by amplifier, and be applied to power element.
[0015]
According to this structure,, can under the condition in low-cost and saving space, obtain good vibration suppressioning effect by active vibration inhibition system owing to do not use sensor.
[0016]
According to the present invention, a kind of apparatus for restraining longitudinal vibration of lift car can be provided, it can suppress the longitudinal vibration of lift car with simple structure and cheap cost.
Description of drawings
[0027]
Usefulness that Fig. 1 is that the present invention will be described represent the roughly integrally-built scheme drawing of elevator.
Fig. 2 is the concept map of the apparatus for restraining longitudinal vibration of the related lift car of expression the 1st form of implementation of the present invention.
Fig. 3 is the concept map of the apparatus for restraining longitudinal vibration of the related lift car of expression the 2nd form of implementation of the present invention.
Among the figure:
[0028]
The 1-lift car, 2-lift car guide boot, 3-lift car guide rail, the 4-counterbalanced weight, 5-counterbalanced weight guide boot, 6-counterbalanced weight guide rail, 7-master's hoist cable, 8-rope sheave, 9-winch, 10-lift car lower pulley, 14-elevator cages, 15-elevator car frame, 16-vibration-proof rubber body, 17-load-carrying element, 18-transom, 19-rod member (rod), 20-dynamic vibration absorbers hammer, 21-dynamic vibration absorbers spring, the 22-power element, 23, the 24-detecting sensor, 25-microcomputer, 26a, the 26b-signal converter, the 27-controller, the 28-amplifier, 29-resistance, 30-visualizer (observer).
The specific embodiment
[0017]
With reference to the accompanying drawings, the form of implementation to the apparatus for restraining longitudinal vibration of lift car involved in the present invention describes.
[0018]
Usefulness that Fig. 1 is that the present invention will be described represent the roughly integrally-built scheme drawing of elevator, Fig. 2 is the concept map of the apparatus for restraining longitudinal vibration of the related lift car of expression the 1st form of implementation of the present invention, and Fig. 3 is the concept map of the apparatus for restraining longitudinal vibration of the related lift car of expression the 2nd form of implementation of the present invention.
[0019]
As shown in Figure 1, elevator constitutes the power by winder motor 9, carry out friction-driven by 8 pairs of main hoist cables 7 of winch rope sheave, the lift car 1 that is suspended on this main hoist cable 7 is used under the guiding of guide boot 2 along lift car guide rail 3 liftings at lift car.And, be benchmark with winch rope sheave 8, at the opposition side of lift car 1, suspention has a counterbalanced weight 4 on the main hoist cable 7, this counterbalanced weight 4 under the guiding of counterbalanced weight guide boot 5 along counterbalanced weight with guide rail 6 liftings.Lift car lower pulley 10 is installed in the left and right sides under the car.11 expression lift car side roof part pulleys, 12 expression counterbalanced weight side roof part pulleys, the 13rd, counterweight block.
[0020]
As shown in Figure 2, the lift car 1 of described Fig. 1 is made of elevator cages 14 and elevator car frame 15.Described elevator cages 14 is supported on the described elevator car frame 15 by vibration-proof rubber body 16.And, about described elevator car frame 15, described lift car lower pulley 10 being installed by load-carrying element 17, main hoist cable 7 constitutes the groove by this lower pulley.The load-carrying element 17 of the lift car lower pulley 10 of described left and right sides connects by transom 18.The dynamic vibration absorbers hammer 20 that constitutes the dynamic vibration absorber is installed between described elevator car frame 15 and described transom 18, and the rod member 19 that this dynamic vibration absorbers hammer 20 can be fixed on described elevator car frame 15 and described transom 18 along two ends respectively moves smoothly at above-below direction.Between this dynamic vibration absorbers hammer 20 and elevator car frame 15 dynamic vibration absorbers spring 21 is installed, this dynamic vibration absorbers spring 21 produces corresponding spring force when described dynamic vibration absorbers hammer 20 carries out relative motion with respect to elevator car frame 15.And, also having power element 22, it drives dynamic vibration absorbers hammer 20 at above-below direction with respect to described elevator car frame 15.For this power element 22, as long as can drive dynamic vibration absorbers hammer 20 at above-below direction, can be the power element that linear motor etc. produces linear driving force, also can be the power element that the rotational force of rotary electric arbor is transformed to linear driving force.
[0021]
And then the sensor 23,24 that degree of will speed up sensor and displacement pickup etc. can detect vibration is installed in a side of described dynamic vibration absorbers hammer 20 and described elevator cages 14 or described elevator car frame 15.The signal converter 26a of the function of the oscillating component that each sensor 23,24 is detected by having A/D changer etc. is transformed to the form that can be used in control input computing, on this basis, come computing can suppress the control input of the vibration of lift car 1 by controller 27, signal converter 26b via the function that comprises D/A changer etc. carries out conversion, further carry out power gain by amplifier 28, so that the electric current of enough driving power elements 22 can be provided, and it is applied on the power element 22.The 25th, microcomputer.
[0022]
By applying drive current to this power element 22, drive power element 22, make described dynamic vibration absorbers hammer 20 in the above-below direction motion, can suppress the longitudinal vibration of lift car 1 effectively.
[0023]
In Fig. 2, adopted by acceleration pick-up or displacement pickup and waited the sensor structure that detects vibration, and in Fig. 3, only provide and controlled the method for dynamic vibration absorbers on one's own initiative, and do not used the above-mentioned sensor that is used to detect vibration with the inhibition shock of elevator car by the current value that detects power element.Among Fig. 3, the part identical with Fig. 2 adopts identical symbolic representation.
[0024]
In the method, by the relative motion between dynamic vibration absorbers hammer 20 and the elevator car frame 15, make the electrical motor of employed power element in the active vibration inhibition system produce counter electromotive force, and it is reflected on the current value.The current value of power element 22, for example by in series inserting resistance 29 with power element 22, and the voltage of observing its two ends descends, and just can detect with comparalive ease, so this method that is called as the sensorless detection method does not need to use sensor just can detect.According to current value by detected power elements such as said methods, the signal converter 26a of the function by comprising A/D changer etc., and use visualizer 30 to carry out computing and infer and lift car and the relevant quantity of state of dynamic vibration absorbers hammer with real-time mode, and according to the state of being inferred, in controller 27, can suppress the control input of the vibration of lift car with the real-time mode computing, the signal converter 26b of the function by comprising D/A changer etc. carries out conversion, and use amplifier 28 to implement power gain, it is applied on the controller 22.
[0025]
According to the present invention, can apply lift car 1 by the power that in power element 22, produces and be used to the energy that suppresses to vibrate as the vibration suppression object, can reduce the formation dynamic vibration absorbers and hammer 20 required force of inertia components into shape, compare with the situation that only adopts passive system, can make dynamic vibration absorbers hammer 20 realize miniaturization, and can alleviate the quality of dynamic vibration absorbers hammer 20.And, significantly change in the physical property of vibrating system, perhaps under the situation that the frequency that will suppress significantly changes, still can access superior vibration suppression performance.And, by using passive system and active system simultaneously, can be described as and constituted duplex system, even just in case fault has taken place when power element 22 or sensor 23,24, when error state such as broken string has taken place in the circuit that perhaps makes their normal operation and need, because the passive system normal operation, so, still can access vibration suppressioning effect to a certain degree.
[0026]
And, by no sensor, method, can suppress to cause the increase of cost because of setting up active system, even in the space that is provided with that can not guarantee sensor, can not guarantee that perhaps sensor is provided with the stability of position, perhaps, also can obtain superior vibration suppressioning effect by active system because of the external interference factor that can't expect of mechanicalness or electric property or noise join sensor itself or sensor when the position being set can't guaranteeing sufficient vibration detection precision.
Claims (3)
1. the apparatus for restraining longitudinal vibration of a lift car, left and right sides below the elevator car frame of the lift car that constitutes by elevator cages and elevator car frame, be provided with the lift car lower pulley by load-carrying element, and volume hangs with main hoist cable so that described lift car is driven on this lift car lower pulley, wherein
The load-carrying element that connects described left and right sides by transom, and between this transom and described elevator car frame, be provided with by spring and support and dynamic vibration absorber that can up-and-down movement, and, also have and give power element to this dynamic vibration absorber with the propulsive effort of above-below direction.
2. the apparatus for restraining longitudinal vibration of lift car as claimed in claim 1 is characterized in that,
Described lift car and described dynamic vibration absorber are provided with vibration sensor, be transformed to the form that in the computing of control input, to use by the signal converter oscillating component that this vibration sensor is detected, and on this basis, can suppress the control input of the vibration of lift car by the controller computing, and then, behind signal converter, carry out power gain by amplifier, so that the electric current that is enough to drive power element can be provided, will impose on power element to the drive current that described power element is supplied with thus.
3. the apparatus for restraining longitudinal vibration of lift car as claimed in claim 1 is characterized in that,
Current value according to described power element, behind signal converter, use visualizer to infer computing, so that with real-time mode supposition and lift car and the relevant quantity of state of dynamic vibration absorbers hammer, according to the state of this supposition, can suppress the control input of the vibration of lift car with the real-time mode computing by controller, behind signal converter, carry out power gain by amplifier, and be applied to power element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007002479A JP2008168980A (en) | 2007-01-10 | 2007-01-10 | Vertical vibration suppression device for elevator car |
| JP2007002479 | 2007-01-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101219748A true CN101219748A (en) | 2008-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101865600A Pending CN101219748A (en) | 2007-01-10 | 2007-12-12 | Apparatus for restraining longitudinal vibration of elevator cage |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2008168980A (en) |
| CN (1) | CN101219748A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356038A (en) * | 2009-03-20 | 2012-02-15 | 奥的斯电梯公司 | Elevator load bearing member vibration control |
| CN105800431A (en) * | 2016-04-12 | 2016-07-27 | 波士顿电梯（湖州）有限公司 | Stable type dragging system of synchronous car bottom wheel structure |
| CN106467262A (en) * | 2015-08-19 | 2017-03-01 | 株式会社日立制作所 | Elevator |
| CN107954301A (en) * | 2017-12-29 | 2018-04-24 | 重庆红方机电有限公司 | A kind of elevator counterweight of high safety type |
| CN109911743A (en) * | 2017-12-12 | 2019-06-21 | 日立楼宇技术（广州）有限公司 | Elevator vibration-reducing control method, system and device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010037084A (en) * | 2008-08-07 | 2010-02-18 | Toshiba Elevator Co Ltd | Elevator car |
| JP5575439B2 (en) * | 2009-09-18 | 2014-08-20 | 東芝エレベータ株式会社 | elevator |
| US20130104538A1 (en) * | 2010-07-21 | 2013-05-02 | Rae Hyoung Yuck | Wave power generation apparatus |
| JP2013119437A (en) * | 2011-12-06 | 2013-06-17 | Hitachi Ltd | Entrance apparatus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS60106769A (en) * | 1983-11-14 | 1985-06-12 | 三菱電機株式会社 | Vibration-damping device for elevator |
| JP2662569B2 (en) * | 1988-03-29 | 1997-10-15 | アイシン精機株式会社 | Output current detection circuit fail-safe circuit |
| JP2906318B2 (en) * | 1993-10-12 | 1999-06-21 | 油研工業株式会社 | Proportional electromagnetic control valve device |
| JPH1045342A (en) * | 1996-07-31 | 1998-02-17 | Toshiba Corp | Damping device for elevator |
| JP2001247263A (en) * | 2000-03-06 | 2001-09-11 | Hitachi Ltd | Device for inhibiting vibration of elevator |
| JP2004244173A (en) * | 2003-02-14 | 2004-09-02 | Mitsubishi Electric Corp | Damping device and method for elevator |
| JP4220312B2 (en) * | 2003-06-09 | 2009-02-04 | 株式会社日立製作所 | Elevator vibration absorber |
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2007
- 2007-01-10 JP JP2007002479A patent/JP2008168980A/en active Pending
- 2007-12-12 CN CNA2007101865600A patent/CN101219748A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356038A (en) * | 2009-03-20 | 2012-02-15 | 奥的斯电梯公司 | Elevator load bearing member vibration control |
| CN102356038B (en) * | 2009-03-20 | 2015-05-06 | 奥的斯电梯公司 | Elevator load bearing member vibration control |
| US9038782B2 (en) | 2009-03-20 | 2015-05-26 | Otis Elevator Company | Elevator load bearing member vibration control |
| CN106467262A (en) * | 2015-08-19 | 2017-03-01 | 株式会社日立制作所 | Elevator |
| CN106467262B (en) * | 2015-08-19 | 2018-09-11 | 株式会社日立制作所 | Elevator |
| CN105800431A (en) * | 2016-04-12 | 2016-07-27 | 波士顿电梯（湖州）有限公司 | Stable type dragging system of synchronous car bottom wheel structure |
| CN109911743A (en) * | 2017-12-12 | 2019-06-21 | 日立楼宇技术（广州）有限公司 | Elevator vibration-reducing control method, system and device |
| CN107954301A (en) * | 2017-12-29 | 2018-04-24 | 重庆红方机电有限公司 | A kind of elevator counterweight of high safety type |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008168980A (en) | 2008-07-24 |
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