CN100526190C - Arrester control device for elevator - Google Patents
Arrester control device for elevator Download PDFInfo
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- CN100526190C CN100526190C CNB2006100064526A CN200610006452A CN100526190C CN 100526190 C CN100526190 C CN 100526190C CN B2006100064526 A CNB2006100064526 A CN B2006100064526A CN 200610006452 A CN200610006452 A CN 200610006452A CN 100526190 C CN100526190 C CN 100526190C
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Abstract
The invention discloses to a brake controller of liter. Wherein, the winding current exciting circuit (15) is formed by the winding current instructor (24) that instructing the current to pass said electromagnetic winding; the current detector (25) that detecting the current of electromagnetic winding; the winding current controller (26) that inputting the instruction of said winding current instructor (24) and the detected value of said current detector (25) to control the current of electromagnetic winding; when releasing said brake, the winding current instructor will periodically send winding current instructions, then the instruction that reducing the winding current to the keep current to maintain the brake release state; when executing brake, sending the instruction that keeping the current at the middle position between the displacement start point of said movable plate or the brake plate and the contact position of brake drum; then stepped reducing the winding current.
Description
Technical field
[0001]
The present invention relates to a kind of arrester control device for elevator, this arrester control device for elevator is by obtaining braking force with brake plate by being pressed on the brake wheel.
Background technology
[0002]
As prior art, by brake plate is known by people by being pressed in the arrester control device for elevator that obtains braking force on the brake wheel.In this kind arrester control device for elevator, when braking is removed, perhaps carrying out glancing impact, perhaps remove until till the braking execution from braking, make electromagnetism winding (DC electromagnet) energising or outage according to instruction, but drive the brake plate (for example with reference to patent documentation one, patent documentation two and patent documentation three) that constitutes with the moving plate one with this.
[0003]
In addition, disclosed scheme also has the braking method (for example with reference to patent documentation four) of rail transport trolley, the control method (for example with reference to patent documentation six) of braking method of common electrical magnetic brake (for example with reference to patent documentation five) and direct supply.
Patent documentation one spy opens flat 09-267982 communique;
Patent documentation two spies open the 2004-115203 communique;
Patent documentation three spies open flat 06-200961 communique;
Patent documentation four spies open flat 09-58469 communique;
Patent documentation five spies open the 2002-13567 communique;
Patent documentation six spies open flat 06-169564 communique.
[0004]
In above-mentioned patent documentation one disclosed arrester control device for elevator, making lift car and balance weight carry out lifting by linear motor drives, travel beginning by the brake equipment brake off that is arranged in the balance weight, perhaps carry out braking to keep halted state.That is, the elastic force of this brake equipment by spring carries out pressure to guide rail seizes on both sides by the arms carrying out braking, and carries out electromagnetic attaction by the winding supply of current to electromagnet with the elastic force that overcomes spring, thereby the pressure of removing guide rail is seized on both sides by the arms and brake off.Its operating principle is as follows.
[0005]
Shown in Figure 11 as patent documentation one, usually, braking is removed action and braking and is carried out action and undertaken by winding supply of current or turn-off current to electromagnet.After the energising (action is removed in braking), electric current begins to flow through the electromagnetism winding, but the gap between electromagnet and the moving plate narrows down when winding current begins to supply with lentamente.At this moment, increase by the magnetic flux of winding current generation and the quadratic power in gap inversely proportionally, so but sharply dwindle to the close intermediate gap, way of electromagnet at moving plate, but electromagnet comes in contact in moment with moving plate.After but moving plate is held by electromagnet fully, because the magnetic resistance of magnetic circuit reduces, so, even it is little to flow through the exciting current of electromagnetism winding, therefore also can produce the electromagnetic attraction that can overcome spring force, reduce winding current constantly and hold and keep at this.
[0006]
After this, turn-off current (action is carried out in braking), making current value is zero, because winding current reduces with the specific time constant, so but the gap between electromagnet and the moving plate open lentamente when beginning, but in opening on the way, because identical reason when removing with described braking, sharply open halfway in the gap, because this rapid action, brake plate is by fast by being pressed on the brake wheel.
[0007]
As mentioned above, when braking is removed and braking when carrying out, since the quick action of brake plate, but the bruit de froissement that produces between bruit de froissement that produces between moving plate and the electromagnet and brake plate and brake wheel increasing, and bring offending sensation can for the passenger in the lift car.Wherein, the bruit de froissement that produces when braking is removed is for example by being provided with the padded coaming of elastic caoutchouc spare etc. in the electromagnet side, reduce than being easier to, but the bruit de froissement when braking is carried out, owing on the contact surface between brake plate and the brake wheel padded coaming etc. can't be set, so be not easy to be eliminated.
[0008]
Especially, in nearest elevator, thereby generally towing machine is arranged on the Machine Room of having omitted hoist trunk top in the hoist trunk, its result, the noise that the drg bruit de froissement is caused in lift car is more obvious.
[0009]
Remove and brake the bruit de froissement that produces when carrying out in order to suppress aforesaid in braking, in existing winding current control (with reference to Fig. 2 of patent documentation one), after receiving braking releasing instruction at first, export the current-order of ramped shaped (cumulative figure) as the command value of winding current, by winding current is increased gradually, but the attractive force that acts on the moving plate is increased gradually.Thus, but the gap between electromagnet and the moving plate narrow down lentamente, but the collision velocity between moving plate and the electromagnet reduce, bruit de froissement diminishes.Equally, after receiving the braking execution command, make winding current be ramped shaped ground and reduce lentamente, but make moving plate leave electromagnet lentamente, then, but strengthen suddenly, winding current is increased gradually for the gap that prevents moving plate.Thus, but moving plate and brake plate during near brake wheel, because electromagnetic attraction increases, the collision velocity in the time of can suppressing to contact between brake plate and the brake wheel, thus can reduce bruit de froissement.
[0010]
; in the existing method of described patent documentation one; carrying out glancing impact (with reference to Fig. 2 of patent documentation one) owing to adopted; make winding current be reduced to specified value gradually; the method that it is increased gradually; continue to increase gradually when unusual so can appear at winding current instruction mechanism, thereby can't carry out braking and become the braking disarm state, therefore can't carry out the problem that braking stops it elevator.And if set up anti-locking apparatus in order to prevent the problems referred to above from occurring, the winding current control circuit too complicated problems that becomes then can appear making.In addition, when the braking releasing (with reference to Fig. 2 of patent documentation one), increase to specified value gradually, delay, begin problem slowly thereby cause elevator to travel so can occur braking removing to move owing to make winding current be ramped shaped ground.
[0011]
And, patent documentation two disclosed magnet stoppers are used for the towing machine of elevator, elastic force by spring, with brake plate by being pressed on the brake wheel of being located on the towing machine S. A., carry out braking thus, and by winding supply of current, but overcome the elastic force of spring and hold moving plate with the brake plate one to electromagnet, the constrained force of brake off drum, thereby brake off.
[0012]
, in the existing method of described patent documentation two, carrying out glancing impact, having adopted and having made winding current is zero, the method (with reference to Fig. 3 of patent documentation two) that winding current is increased gradually.In order to prevent that this winding current from increasing always, set the upper limit position a reference value, but it is identical with patent documentation one, exist to make the winding current control circuit complicated problems that becomes.
[0013]
In addition, patent documentation three disclosed magnet stoppers are used for the towing machine of elevator, elastic force by spring, with brake plate by being pressed on the brake wheel of being located on the towing machine S. A., carry out braking thus, and by winding supply of current, but overcome the elastic force of spring and hold moving plate with the brake plate one to electromagnet, the constrained force of brake off drum, thereby brake off.But this measure is to be used to reduce the measure of braking the bruit de froissement when removing, and is not taking measures aspect the bruit de froissement that reduces the execution glancing impact.
[0014]
In the brake equipment of patent documentation four disclosed rail transport trolleys, it discloses the braking method (with reference to Fig. 2 and Fig. 3 of patent documentation four) of carrying out glancing impact, it to be carried out glancing impact rail transport trolley generation collision and controls in order to prevent, make braking force ascending lentamente, its with the brake equipment of elevator in to prevent to move the situation of bruit de froissement different.
[0015]
And, in patent documentation five disclosed electromagnetic braking control methods, the generation of the mechanical collision sound when preventing the drg on-off action and for the time under reach, on the electromagnetism winding, apply high frequency voltage, calculate winding inductance, according to this variation inductance, when braking is removed and braking when carrying out, winding current is increased gradually and reduce (with reference to Fig. 4 of patent documentation five) by control, identical with patent documentation one, when braking is removed, owing to winding current is increased gradually through control, so it is slow in one's movements that braking is removed, thereby there is the elevator problem slowly that begins to travel.
[0016]
And, the surge absorber circuit of the disclosed interchange of patent documentation six GTO voltage regulator circuits are vibratory gyroscope oscillators with the surge absorber circuit that uses in the power supply, this surge absorber circuit is regulated the voltage of source of AC by the circuit that uses GTO, and its electromagnetism winding energizing circuit with elevator is different.
Summary of the invention
[0017]
The object of the present invention is to provide a kind of arrester control device for elevator, this arrester control device for elevator can reduce the bruit de froissement of drg, and when braking is removed, slow-moving situation can not occur, not need the control that winding current is increased gradually at the execution glancing impact.
[0018]
Another object of the present invention is to provide a kind of arrester control device for elevator, and this arrester control device for elevator has simple winding current control circuit.
[0019]
A further object of the present invention is to provide a kind of arrester control device for elevator, and this arrester control device for elevator can reduce the capacity of on-off element.
[0020]
To achieve these goals, technical solution of the present invention one described arrester control device for elevator has the hoisting motor that lift car is carried out the lifting driving, be arranged on the brake wheel on this hoisting motor, by pushing this brake wheel to produce the brake plate of braking force, be used to retarding spring that this brake plate is pushed towards described brake wheel side, but with described brake plate bonded assembly moving plate, thereby but constitute the electromagnetism winding that overcomes the thrust of described spring and attract the electromagnet of this moving plate brake off, and be used to make this electromagnetism winding to flow through the winding current energizing circuit of electric current, it is characterized in that, described winding current energizing circuit is by the winding current instruction mechanism of instruction current by described electromagnetism winding, be used to detect the current detecting mechanism of described electromagnetism winding current, being used to import the command value of described winding current instruction mechanism and the detected value of described current detecting mechanism constitutes with the winding current control mechanism of controlling described electromagnetism winding current, removing described glancing impact, mechanism sends the winding current instruction interimly by the winding current instruction, send afterwards and make winding current be reduced to the instruction of holding current to keep the braking disarm state, and carrying out glancing impact, but send will remain on described moving plate or described brake plate near the position displacement starting point to contact position that described brake wheel contacts half-way the time the instruction of winding current, reduce winding current then gradually.
[0021]
According to said structure, can access a kind of arrester control device for elevator, in this arrester control device for elevator, when braking is removed, owing to send the winding current instruction interimly, so removing action, braking can not become slow, and carrying out glancing impact, in the process that winding current reduces, in a period of time, winding current is kept, reduce winding current afterwards gradually, so the control that does not need winding current is increased gradually at the execution glancing impact just can reduce the bruit de froissement of braking, simultaneously, owing to do not need winding current is increased gradually at the execution glancing impact, do not prevent the unusual cumulative device of winding current so do not need to be provided with, thereby make the structure of winding current energizing circuit become simple.
[0022]
And, in technical solution of the present invention two described arrester control device for elevator, it is characterized in that, described winding current energizing circuit has the braking of flowing through at braking releasing initial stage winding current and removes the promotion circuit, described current detecting mechanism, described winding current instruction mechanism, and described winding current control mechanism constitutes the winding current control circuit, removing described glancing impact, braking is removed promoted circuit and the energising of winding current control circuit, behind the process certain hour, thereby being removed, described braking promote down circuitry to keep the braking disarm state by the electric current of described winding current control circuit, and carrying out glancing impact, send by described winding current control circuit electric current is remained on instruction on the winding current, reduce winding current then gradually, wherein this winding current is positioned at a half-way, but this half-way near the position displacement starting point of described moving plate or described brake plate to its with contact position that described brake wheel contacts between.
[0023]
According to said structure, can access a kind of arrester control device for elevator, this arrester control device for elevator is identical with the device of technical scheme one, when braking is removed, owing to send the winding current instruction interimly, so removing action, braking can not become slow, and carrying out glancing impact, in the process that winding current reduces, in a period of time, winding current is kept, reduce winding current afterwards gradually, so the control that does not need winding current is increased gradually at the execution glancing impact just can reduce the bruit de froissement of braking, simultaneously, owing to do not need winding current is increased gradually at the execution glancing impact, do not prevent the unusual cumulative mechanism of winding current so do not need to be provided with, thereby make the structure of winding current energizing circuit become simple.And according to said structure, can also obtain a kind of arrester control device for elevator, when this arrester control device for elevator is removed in braking, described winding current energizing circuit is arranged to remove to promote circuit and winding current control circuit that winding is carried out excitation with braking, so can reduce the capacity of the on-off element of the winding current control circuit that is used for controlling winding current.
[0024]
In addition, in technical scheme three and technical scheme four, technical scheme one described winding current energizing circuit and technical scheme two described winding current control circuits are configured to control the voltage of alternating current input power supplying, afterwards AC rectification are become direct current (DC), so that winding current is controlled.
[0025]
According to this structure, can obtain the arrester control device for elevator identical with technical scheme one and technical scheme two.
[0026]
In addition, technical scheme five described arrester control device for elevator are characterised in that, be provided with and brake holding current set mechanism when applying, it is carrying out glancing impact, but near the position displacement starting point of described moving plate or described brake plate is adjusted setting to it with the winding current of half-way between the contact position that described brake wheel contacts, this winding current is remained on by near the winding current before the sensor mechanism detection, brake plate and the brake wheel collision that are arranged on the brake plate.
[0027]
According to this structure, can obtain the arrester control device for elevator identical with technical scheme one and technical scheme two.Especially can access a kind of arrester control device for elevator, in this arrester control device for elevator, the holding current in the time of can setting the braking execution with simple method.
[0028]
In addition, according to technical scheme five described arrester control device for elevator, technical scheme six described arrester control device for elevator are characterised in that, described sensor mechanism is configured to be positioned near the brake plate, the sound press sensor of the bruit de froissement that produces when detecting the collision of brake plate and brake wheel, perhaps be arranged for detecting the vibration sensor of brake plate vibration, perhaps be arranged for detecting the displacement pickup of brake plate displacement.
[0029]
According to this structure, can obtain the arrester control device for elevator identical with technical scheme five.
The effect of invention
[0030]
According to the present invention, a kind of arrester control device for elevator can be provided, this arrester control device for elevator can reduce the bruit de froissement of drg, and slow-moving situation can not appear when braking is removed, do not need control that winding current is increased gradually carrying out glancing impact, perhaps can provide a kind of arrester control device for elevator, this arrester control device for elevator has simple winding current control circuit, perhaps can provide a kind of arrester control device for elevator, this arrester control device for elevator can reduce the capacity of on-off element.
Description of drawings
Fig. 1 is the integral structure figure of the related arrester control device for elevator of an embodiment of the present invention.
The winding current energizing circuit of Fig. 2 presentation graphs 1.
Fig. 3 is the sequential chart of presentation graphs 1 drg action.
Fig. 4 represents the relation in winding current and electromagnet gap and the holding position of carrying out the winding current of glancing impact.
Fig. 5 and Fig. 2 are suitable, the winding current energizing circuit of the arrester control device for elevator that expression another embodiment of the present invention is related.
Fig. 6 and Fig. 3 are suitable, are the sequential charts of presentation graphs 5 drgs action.
Fig. 7 and Fig. 2 are suitable, the winding current energizing circuit of the arrester control device for elevator that expression another embodiment of the present invention is related.
Fig. 8 and Fig. 5 are suitable, the winding current control circuit of presentation graphs 7.
Nomenclature: 1 towing machine electrical motor, 6 brake wheels, 7 brake plates, 9 retarding springs, 10 electromagnet, 11a, 11b electromagnetism winding, but 14a, 14b moving plate, 15 winding current energizing circuits, 24 winding currents instruction mechanism, 25 current detecting mechanisms, 26 winding current control mechanisms, 27 sensor mechanism, 29 displacement pickups, 30 vibratioies sensor, 31 sound press sensors, 32 brakings are removed and are promoted circuit, 33 winding current control circuits.
Concrete embodiment
[0031]
Following with reference to description of drawings form of implementation of the present invention.
[0032]
Fig. 1 to Fig. 4 is relevant with a form of implementation of arrester control device for elevator of the present invention.Fig. 1 is the integral structure figure of arrester control device for elevator, the winding current energizing circuit of Fig. 2 presentation graphs 1, Fig. 3 is the sequential chart of expression drg action, and Fig. 4 represents the relation between winding current and the electromagnet gap, the holding position that its main presentation graphs 3 is carried out the winding current of glancing impact.
[0033]
In Fig. 1, the traction sheave of 1 expression towing machine, the main hoist cable 2 that is wound on this traction sheave adopts the well-bucket mode at one end suspention lift car 3, other end suspention balance weight 4.Traction sheave 1 is driven by towing machine electrical motor 5, so that lift car 3 and balance weight 4 liftings operation.6 expressions are braked the brake wheel of body, and it is arranged on the axle that connects towing machine electrical motor 5 and traction sheave 1.A pair of brake plate 7 contacts with the brake surface 6a of this brake wheel 6.The a pair of braking wrist of 8 expressions has 7, one end 8a of described brake plate and rotatably is supported on the 8c of intermediate portion.9 expression retarding springs, it is arranged on another end 8b of braking wrist 8, and applies the pressing force of pushing brake surface 6a to described brake plate 7.
[0034]
10 expression electromagnet, this electromagnet is arranged near another end 8b of described braking wrist 8, is used to remove the pressing force of described retarding spring 9.This electromagnet 10 is made of two electromagnetism winding 11a, 11b and this electromagnetism winding 11a, the shared yoke 12 of 11b, two places of this yoke 12 have pole surface 13a, 13b, to each pole surface 13a, 13b, electromagnetism winding 11a are set, 11b, in fact it have the function of two electromagnet.In addition, but the couple positioned opposite at pole surface 13a, 13b has two moving plate 14a, 14b, but should moving plate 14a, 14b be configured to be connected to drive another end 8b of braking wrist 8, carry out one together with brake plate 7 and drive with another end 8b of described braking wrist 8.15 expressions are used for the electric current that control flows is crossed electromagnetism winding 11a, 11b to the winding current energizing circuit of described electromagnetism winding 11a, 11b energising.16 expressions are to the source of AC of these winding current energizing circuit 15 power supplies, and 17 expressions make the contact of this source of AC connection and open circuited electromagnetic contactor, and being situated between is connected with described winding current energizing circuit 15 by this contact.18 expressions make the normally closed contact of described electromagnetism winding 11a, 11b energising and open circuited electromagnetic contactor.
[0035]
Fig. 2 is the details drawing of described winding current energizing circuit 15.
[0036]
21 expressions are transformed into galvanic DC converting element with alternating current, the on-off element that 22 expressions are made of semiconductor elements such as transistors, the discharging resistance that 23 expressions and described electromagnetism winding 11a, 11b are connected in parallel, this discharging resistance disengages when power supply disconnection and contact 18 openings and consumes the energy that is accumulated in electromagnetism winding 11a, the 11b, and its resistance value is set to 10 times that are substantially equal to electromagnetism winding 11a, 11b self-resistance.The dc output end of described DC converting element 21 is connected with connecting portion arranged side by side between the discharging resistance 23 by normally closed contact 18 and described on-off element 22 and this electromagnetism winding 11a, 11b.When stopping fast, opens in this normally closed contact 18 elevator such as when urgent.
[0037]
24 expression indicator currents flow through the winding current instruction mechanism of described electromagnetism winding 11a, 11b, 25 expressions are used to detect the current detecting mechanism of described electromagnetism winding current, 26 expression winding current control mechanisms, this winding current control mechanism is imported the command value of described winding current instruction mechanism 24 and the detected value of described current detecting mechanism 25, and to on-off element 22 output drive signals, control the electric current of described electromagnetism winding 11a, 11b, the command value that makes described winding current instruction mechanism 24 is consistent with the detected value of described current detecting mechanism 25.Described winding current energizing circuit 15 is made of described DC converting element 21, described on-off element 22, described winding current instruction mechanism 24, described current detecting mechanism 25 and winding current control mechanism 26.
[0038]
Following according to Fig. 3 to removing action till braking is carried out from braking among the embodiment one, the action till promptly from moment T1 to moment T6 describes.
[0039]
Supply the contact 17 of the electromagnetic contactor of power supply at moment T1 and connect, disconnect at moment T6 contact 17.Action T1 when braking is removed is to T3 during this, winding current instruction (a) output pulse type current-order.That is, after moment T1 received braking releasing instruction, contact action (d) connected the contact 17 of electromagnetic contactor, and electric current begins to flow into electromagnetism winding 11a, 11b, and winding current (b) increases to certain value with the time constant of circuit.Therefore, but the gap between electromagnet 10 and moving plate 14a, the 14b is shown in electromagnet gap (c), and T1 slowly narrows down since the moment, but sharply narrows down from beginning this gap midway, held fixingly at moment T2 place fully by electromagnet, form to attract at moment T3 place and fixing hold mode.In the braking releasing initial stage action of moment T1 till the T3 constantly, for the time opening of travelling that does not make elevator postpones, send the pulse type instruction, the winding current at energising initial stage is increased, accelerate thereby make braking remove action.
[0040]
And, after but moving plate 14a, 14b are held fully, the magnetic resistance of magnetic circuit reduces, even it is less to flow into the exciting current of electromagnetism winding 11a, 11b, also can produce the attractive force that overcomes spring force, so reduce current instruction value at moment T3, just reduce winding current, till T3 to T4 during in the certain holding current of formation.After this, shown in winding current (b), by the braking execution command, winding current is reduced to the certain value that is instructed and forms certain current i s at moment T4, and remains to till the moment T5 always.Afterwards,, reduce winding current gradually, contact with brake wheel 6 up to brake plate 7 according to the winding current instruction.After brake plate 7 and moment T6 after brake wheel 6 contacts, make winding current instruct back zero, disconnect the contact 17 of electromagnetic contactor.Winding current is along with the time constant of circuit is reduced to zero.T6 remains on later under the braking executing state.
[0041]
Below the time location that in a period of time winding current is kept when described braking is carried out is illustrated.
[0042]
As shown in Figure 4, but moving plate 14a, 14b are as follows by winding current and the relation between the electromagnet gap before holding fully, hysteresis appearred in (when electric current reduces) when promptly (when electric current increases) and braking were carried out when braking is removed, but but the winding current that moving plate 14a, 14b is moved when the winding current of moving plate 14a, 14b action is removed than braking is little.Promptly, from with the corresponding relation of the characteristic in the electromagnet gap (c) of Fig. 3, when braking is removed, remove variation starting point (but the moving plate 14a of starting point a → electromagnet gap turn narrow through braking, the attraction potential of 14b is removed initial point) b → hold attachment point c → braking fully to remove this process of holding point d, and when braking is carried out, through the braking releasing holding point variation starting point that d → the electromagnet gap broadens (the displacement starting point but moving plate resets) e → brake plate 7 this process of contact point f with brake wheel.And, but moving plate 14a, 14b and brake plate 7 carry out one and move via braking wrist 8, so in this form of implementation, but the action of moving plate 14a, 14b can be interpreted as the action of brake plate.
[0043]
Therefore, but time location that the winding electric flow valuve remains unchanged temporarily is set in when braking is carried out from being about to arrive starting point e that moving plate carries out the macroscopic displacement that the resets f point till the brake plate 7 contact brake wheels 6.At this moment, more satisfactory is to be arranged on the contact point position before that brake plate 7 will contact with brake wheel 6 as far as possible.That is, from the time location that in a period of time, winding current kept to contact point that brake wheel 6 contacts till the winding current drop more little, promptly the elastic force drop of retarding spring diminishes, so can reduce bruit de froissement more.
[0044]
Below the establishing method of the time location that in a period of time winding current kept when braking is carried out is illustrated.
[0045]
As shown in Figure 4, no small vibration and sound press can appear in the time location f point place in that brake plate 7 contacts with brake wheel 6.For this reason, as shown in Figure 1, detect the location information that f that brake plates 7 contact with brake wheel 6 is ordered by sensor mechanism 27, the output information of this sensor mechanism 27 is input to braking when applying in the holding current set mechanism 28, the location information that the f that contacts with brake wheel 6 according to brake plate 7 is ordered is set at holding current with the winding current before the contact point f point.Then, the winding electric flow valuve that will set in the holding current set mechanism 28 when described braking applies is input in the winding current instruction mechanism 24.The setting of this holding current manually or automated manner carry out.And, as described sensor mechanism 27, use can obtain location information displacement pickup 29, can obtain the vibration sensor 30 of vibration information and can obtain sound press sensor 31 of sound press information etc.That is, by vibration sensor 30 or sound press sensor 31, set winding current for winding current that vibration or sound press become minimum.
[0046]
In the explanation of described embodiment, the situation of stopping floor with regard to elevator in cruising is described.Promptly, when elevator is stopped floor in cruising, make lift car 3 and balance weight 4 remain on quiescence by towing machine electrical motor 5 by the electric control mode, set more slowly so the braking of brake equipment can be carried out action, because in cruising, do not need very fast braking execution speed.But, taken place in elevator control device for example elevator is stopped as early as possible, so must accelerate the speed that action is carried out in braking under the emergency state of fault etc.For this reason, as shown in Figure 2, the dc output end of the DC converting element 21 in winding current energizing circuit 15 is provided with normally closed contact 18.Promptly, under the emergency state, making the command value from winding current instruction mechanism 24 is zero, open simultaneously described normally closed contact 18, between electromagnetism winding 11a, 11b and discharging resistance 23, form close circuit, consume the energy that is accumulated in electromagnetism winding 11a, the 11b by discharging resistance 23.At this moment, winding current is along with the time constant of the close circuit between electromagnetism winding 11a, 11b and the discharging resistance 23 reduces, but as mentioned above, because the resistance value of discharging resistance 23 is set to and is substantially equal to electromagnetism winding 11a, 10 times of 11b resistance value are so winding current returns zero in moment in fact.That is, braking maneuver also obtains carrying out in moment basically.
[0047]
Followingly another embodiment is described with reference to Fig. 5 and Fig. 6.
[0048]
Fig. 5 and Fig. 2 are suitable, expression winding current energizing circuit 15.Fig. 6 and Fig. 3 are suitable, are the sequential charts of expression drg action.The part identical with Fig. 2 and Fig. 3 adopts same-sign to represent, and corresponding as required its explanation of omission.
[0049]
The winding current energizing circuit 15 of this form of implementation of Fig. 5 is removed by braking and is promoted circuit 32 and winding current control circuit 33 to constitute, and removes by this braking to promote circuit 32 and winding current control circuit 33 to make electromagnetism winding 11a, 11b energising.The structure of the winding current energizing circuit 15 of explanation is identical among the structure of described winding current control circuit 33 and the embodiment one.
[0050]
Promptly, described braking is removed and is promoted that circuit 32 constitutes by alternating current being transformed into galvanic DC converting element 34, from contact 35 inputs of source of AC 16 through electromagnetic contactor, and process normally closed contact 18 outputs to the connecting portion arranged side by side of electromagnetism winding 11a, 11b and discharging resistance 23.In addition, winding current control circuit 33 is from contact 36 inputs of source of AC 16 by electromagnetic contactor, and is identical with above-mentioned Fig. 2, outputs to electromagnetism winding 11a, the connecting portion arranged side by side of 11b and discharging resistance 23 through normally closed contact 18.
[0051]
Followingly the action of present embodiment two is described according to Fig. 6.The characteristics of the present embodiment mainly action when braking is removed and braking are removed aspect the maintenance, and the action of braking when carrying out is identical with Fig. 3 and the content illustrated in fig. 4 of above-mentioned first embodiment, omits its explanation at this.
[0052]
During moving when the braking till moment T1 arrives moment T3 is removed, the contact 35 of electromagnetic contactor (d) connects, shown in (b), in electromagnetism winding 11a, 11b, come self-retention remove to promote the winding current iA of the output of circuit 32 to be increased to certain value along with the time constant of circuit, remove fully in moment T2 braking, contact 35 disconnects when moment T3.And in the contact 35 bonded assemblys while of electromagnetic contactor, the contact 36 of electromagnetic contactor connects, and source of AC 16 is input to described winding current control circuit 33.In this winding current control circuit 33, the current-order of the winding current of winding current control circuit 33 instruction (a) when braking is removed action during and braking remove moment T1 during keeping till the T4 constantly during in certain current-order of output wide cut pulse type, by this winding current control circuit 33, begin to flow through electric current among electromagnetism winding 11a, the 11b, in winding current (b), the winding current iB that is used to keep to brake disarm state is along with the time constant of circuit increases to certain value.
[0053]
Therefore, the moment T1 during the action when braking is removed till the T3 constantly during in, the total electric current (iA+iB) that the outgoing current iB of the outgoing current iA that promotes circuit 32 and winding current control circuit 33 is removed in braking flows through electromagnetism winding 11a, 11b.At this moment, when moving, exported the big electric current of pulse type in the winding current energizing circuit 15 that in first embodiment, illustrates at the braking releasing initial stage, but in the present embodiment, winding current control circuit 33 is not exported the big electric current of pulse type, so can reduce the capacity of on-off element 22.
[0054]
Shown in electromagnet gap (c), but electromagnet 10 and moving plate 1a, and the gap between the 13b is identical with first embodiment.In addition, the time location that winding current was kept in a period of time when action is carried out in the braking of moment T4 is also identical, and also identical with the situation that diminishes of bruit de froissement between the brake wheel 6.
[0055]
Followingly another embodiment is described with reference to Fig. 7 and Fig. 8.
[0056]
Fig. 7 and Fig. 2 are suitable, expression winding current energizing circuit.Fig. 8 and Fig. 5 are suitable, expression winding current control circuit.The part identical with Fig. 2 and Fig. 5 adopts same-sign to represent, omits its explanation at this.
[0057]
In the winding current control circuit 33 of the winding current energizing circuit 15 of Fig. 7 and Fig. 8, the alternating-current voltage/AC voltage control element that 37 expressions are made of silicon control and triac etc., alternating current is from contact 17,35,36 inputs of source of AC 16 by electromagnetic contactor.And, instruct the detected value of current detecting mechanism 25 of the command value of mechanism 24 and winding current to be input to winding current control mechanism 26 winding current, to alternating-current voltage/AC voltage control element 37 output drive signals, the control alternating-current voltage/AC voltage, the command value that makes described winding current instruction mechanism 24 is consistent with the detected value of described current detecting mechanism 25, is transformed into direct current (DC) by DC converting element 21 afterwards, makes described electromagnetism winding 11a by normally closed contact 18, the 11b energising is with the control winding current.
Claims (6)
1. arrester control device for elevator, have lift car is carried out the hoisting motor that lifting drives, be arranged on the brake wheel on this hoisting motor, by pushing this brake wheel to produce the brake plate of braking force, be used to retarding spring that this brake plate is pushed towards described brake wheel side, but with described brake plate bonded assembly moving plate, thereby but constitute the electromagnetism winding that overcomes the thrust of described spring and attract the electromagnet of this moving plate brake off, and be used to make this electromagnetism winding to flow through the winding current energizing circuit of electric current, described winding current energizing circuit, by being used for the winding current instruction mechanism of instruction current by described electromagnetism winding, be used to detect the current detecting mechanism of described electromagnetism winding current, being used to import the command value of described winding current instruction mechanism and the detected value of described current detecting mechanism constitutes with the winding current control mechanism of controlling described electromagnetism winding current, it is characterized in that
Removing described glancing impact, instruct mechanism to send the winding current instruction by described winding current interimly, send afterwards and make winding current be reduced to the instruction of holding current to keep the braking disarm state, and carrying out glancing impact, but send with electric current remain on described moving plate or described brake plate near the position displacement starting point to contact position that described brake wheel contacts half-way the time the instruction of winding current, reduce winding current then gradually.
2. arrester control device for elevator as claimed in claim 1 is characterized in that,
Described winding current energizing circuit has to remove in the braking flow through of braking releasing initial stage winding current and promotes circuit, and described current detecting mechanism, described winding current instruction mechanism and described winding current control mechanism constitute the winding current control circuit,
Removing described glancing impact, described braking is removed promoted circuit and the energising of described winding current control circuit, behind the process certain hour, thereby being removed, described braking promote down circuitry to keep the braking releasing by the electric current of described winding current control circuit, and carrying out glancing impact, but by described winding current control circuit send with electric current remain on described moving plate or described brake plate near the position displacement starting point to contact position that described brake wheel contacts half-way the time the instruction of winding current, reduce winding current then gradually.
3. arrester control device for elevator as claimed in claim 1 is characterized in that,
Described winding current energizing circuit is realized the voltage of control alternating current input power supplying, afterwards it is rectified into direct current, so that winding current is controlled.
4. arrester control device for elevator as claimed in claim 2 is characterized in that,
Described winding current control circuit is realized the voltage of control alternating current input power supplying, afterwards it is rectified into direct current, so that winding current is controlled.
5. arrester control device for elevator as claimed in claim 1 or 2 is characterized in that,
Be provided with and brake holding current set mechanism when applying, carrying out glancing impact, but when applying by described braking the holding current set mechanism near the position displacement starting point of described moving plate or described brake plate to contact position that described brake wheel contacts the winding current of half-way adjust setting, this winding current is remained on by being arranged near detected brake plate of the sensor mechanism brake plate and the winding current before the brake wheel collision.
6. arrester control device for elevator as claimed in claim 5 is characterized in that,
Described sensor mechanism is the sound press sensor that is configured to be positioned near brake plate bruit de froissement, that produce when detecting brake plate and brake wheel collision, or be arranged for detecting the vibration sensor that brake plate vibrates, or be arranged for detecting the displacement pickup of brake plate displacement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005075501A JP4607631B2 (en) | 2005-03-16 | 2005-03-16 | Brake control device for elevator |
| JP2005075501 | 2005-03-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1833975A CN1833975A (en) | 2006-09-20 |
| CN100526190C true CN100526190C (en) | 2009-08-12 |
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ID=37001905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100064526A Expired - Fee Related CN100526190C (en) | 2005-03-16 | 2006-01-20 | Arrester control device for elevator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4607631B2 (en) |
| CN (1) | CN100526190C (en) |
| HK (1) | HK1094788A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103328362A (en) * | 2011-02-04 | 2013-09-25 | 奥的斯电梯公司 | Stop sequencing for braking device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5188699B2 (en) * | 2006-11-08 | 2013-04-24 | 株式会社日立製作所 | Brake control device for elevator |
| JP4685803B2 (en) * | 2007-01-10 | 2011-05-18 | 株式会社日立製作所 | Elevator brake control device |
| JP5049672B2 (en) * | 2007-06-27 | 2012-10-17 | 株式会社日立製作所 | Brake device |
| JP4563429B2 (en) * | 2007-08-08 | 2010-10-13 | 株式会社日立製作所 | Brake control device |
| JP2010535682A (en) * | 2007-08-10 | 2010-11-25 | エスジーエム ガントリー エス．ピー．エー． | Electromagnetic lifter for moving coil of hot rolled steel sheet and related operation method |
| CN101903276B (en) | 2007-12-10 | 2013-11-06 | 奥蒂斯电梯公司 | Elevator brake device including permanent magnet bias to apply a braking force |
| JP2009143641A (en) * | 2007-12-12 | 2009-07-02 | Hitachi Ltd | Hydraulic brake device and elevator device having the same |
| DE102008029312B3 (en) * | 2008-06-20 | 2009-12-24 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Method for monitoring the effect of rail brakes |
| CN101492138B (en) * | 2009-03-12 | 2011-02-16 | 石家庄五龙制动器有限公司 | Control circuit and control method of elevator braking system |
| CN101596996B (en) * | 2009-07-08 | 2011-05-18 | 石家庄五龙制动器有限公司 | Control circuit of elevator control system |
| JP5794067B2 (en) * | 2011-09-16 | 2015-10-14 | 三菱電機株式会社 | Elevator brake control device |
| CN102674194A (en) * | 2012-05-23 | 2012-09-19 | 佛山市顺德区金泰德胜电机有限公司 | Control circuit of elevator brake |
| ES2621012T3 (en) * | 2012-12-03 | 2017-06-30 | Inventio Ag | Actuation of an electromagnetic elevator brake for an elevator installation |
| CN103407850B (en) * | 2013-07-31 | 2015-05-06 | 日立电梯（中国）有限公司 | Elevator intelligent brake control method and device |
| KR101381694B1 (en) * | 2014-01-09 | 2014-04-04 | 김정완 | Electronic brake of overexcitation type |
| JP6592376B2 (en) * | 2016-02-26 | 2019-10-16 | 株式会社日立製作所 | Elevator and rescue operation method |
| CN107304022B (en) | 2016-04-21 | 2021-07-06 | 奥的斯电梯公司 | Escalator brake system and escalator brake control method |
| CN106838069A (en) * | 2017-01-20 | 2017-06-13 | 深圳锐特机电技术有限公司 | Electromagnetic brake controls circuit and electromagnetic brake controller |
| CN106865371B (en) * | 2017-03-01 | 2018-09-21 | 日立楼宇技术（广州）有限公司 | Elevator brake and its control method |
| JP2019119530A (en) * | 2017-12-28 | 2019-07-22 | 株式会社日立ビルシステム | Elevator, brake device, and brake abnormality detection method |
| CA3116620A1 (en) * | 2018-12-20 | 2020-06-25 | Inventio Ag | Method and brake controller for controlling a brake in an elevator system |
| JP7157718B2 (en) * | 2019-09-06 | 2022-10-20 | 株式会社日立製作所 | Emergency stop device and elevator |
| JP2022072312A (en) * | 2020-10-29 | 2022-05-17 | 株式会社日立製作所 | Emergency stop device and elevator |
| US20240059522A1 (en) * | 2021-03-29 | 2024-02-22 | Mitsubishi Electric Corporation | Elevator system |
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| JPS5950590B2 (en) * | 1977-04-15 | 1984-12-08 | 三菱電機株式会社 | AC elevator speed control device |
| JPH0780650B2 (en) * | 1990-08-13 | 1995-08-30 | 日本オーチス・エレベータ株式会社 | Brake control system of elevator controller |
| JPH0569041U (en) * | 1992-02-28 | 1993-09-17 | 株式会社明電舎 | Motor brake controller |
| JP3307002B2 (en) * | 1993-06-17 | 2002-07-24 | 三菱電機株式会社 | Elevator braking system |
| CN1229273C (en) * | 2001-09-28 | 2005-11-30 | 三菱电机株式会社 | Brake controller of elevator |
| JP4219188B2 (en) * | 2003-02-28 | 2009-02-04 | 東芝エレベータ株式会社 | Elevator brake control device |
-
2005
- 2005-03-16 JP JP2005075501A patent/JP4607631B2/en not_active Expired - Fee Related
-
2006
- 2006-01-20 CN CNB2006100064526A patent/CN100526190C/en not_active Expired - Fee Related
-
2007
- 2007-02-26 HK HK07102153.2A patent/HK1094788A1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103328362A (en) * | 2011-02-04 | 2013-09-25 | 奥的斯电梯公司 | Stop sequencing for braking device |
| CN103328362B (en) * | 2011-02-04 | 2015-11-25 | 奥的斯电梯公司 | For the stopping sequencing of brake equipment |
| US9457987B2 (en) | 2011-02-04 | 2016-10-04 | Otis Elevator Company | Stop sequencing for braking device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4607631B2 (en) | 2011-01-05 |
| HK1094788A1 (en) | 2007-04-13 |
| JP2006256763A (en) | 2006-09-28 |
| CN1833975A (en) | 2006-09-20 |
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