CN101264840A - Elevator device - Google Patents
Elevator device Download PDFInfo
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- CN101264840A CN101264840A CNA2008100096263A CN200810009626A CN101264840A CN 101264840 A CN101264840 A CN 101264840A CN A2008100096263 A CNA2008100096263 A CN A2008100096263A CN 200810009626 A CN200810009626 A CN 200810009626A CN 101264840 A CN101264840 A CN 101264840A
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- braking force
- electromagnet
- brake pad
- action
- brake
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- Cage And Drive Apparatuses For Elevators (AREA)
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Abstract
An elevator apparatus is able to correctly detect the normality and abnormality of the hoister. Inputting at least one state condition selected from braking force of electromagnetic brake (6), action force of braking force applying device (9), temperature of braking pad, action position of the braking force removing device (10) between the iron sheet (15) and electromagnet (16), temperature of the electromagnet (16) and current of the electromagnet (16), and at least one state condition selected from action position of the braking force applying device (9), action force of the braking force removing device (10), change range of the action position of the braking force applying device (9) and the braking force removing device (10), action vibration or sound pressure of the electromagnetic brake (6), temperature of the motor (5) and temperature of the coder (7), when the state condition is judged as abnormal by the judging device (18), the elevator is stopped after running to the latest floor.
Description
Technical field
The present invention relates to the lift facility that a kind of conditions according to winch moves control.
Background technology
The structure of existing hoist cable formula lift facility is the bucket type structure, and wherein, volume hangs over the side suspention lift car that winch drives the main hoist cable on the rope sheave, opposite side suspention counterbalanced weight.Described winch by described driving rope sheave, drive the electrical motor of this driving rope sheave and the magnet stopper that lift car and counterbalanced weight remain on halted state constituted, this magnet stopper is by the braking force-applying of the rotating part brake activation power of winch and the braking force decontrol of removing the braking force of this braking force-applying are constituted.In addition, the coder that also has the rotation of the axle that detects described electrical motor and drive rope sheave.
In having the lift facility of said structure, the electrical motor and the magnet stopper of winch are controlled by control setup, drive and brake driving rope sheave with this.Thus, volume hangs over the main hoist cable that drives on the rope sheave and is driven and brakes, so that the lifting and stopping in hoist trunk of lift car and counterbalanced weight.The signal of coder is used for the Spin Control of electrical motor and the position control of lift car.In addition, for example open and disclose a kind of scheme in the 2002-316777 communique the patent of invention spy of Japan of patent documentation 1, it is based on the consideration of secure context, carries out the operation of lift facility (for example with reference to patent documentation 1) according to the electric current of the magnet coil of magnet stopper, the temperature of electromagnet, the temperature of sliding component, the conditionss such as displacement of armature.
In addition, for example open in the flat 01-288590 communique and disclose a kind of scheme the patent of invention spy of Japan of patent documentation 2, when it is in halted state at lift car, detect the rotation of electrical motor by producing motor torque, so that detect the unusual of braking torque.(for example with reference to patent documentation 2)
In addition, for example open in the flat 08-310764 communique the patent of invention spy of Japan of patent documentation 3 and disclose a kind of scheme, it detects the swing offset of disk brake main body retaining part, to judge the elastomeric aging of supporting disk brake main body.(for example with reference to patent documentation 3)
Patent documentation 3 spies open flat 08-310764 communique
In general, because elevator is to be used for the manned vehicle that vertically move, so must take sufficient measure at secure context.Winch must make lift car and counterbalanced weight operation effectively as driving arrangement.Especially, require to work effectively, so that can carry out braking maneuver effectively as the magnet stopper of safety device.Therefore, under the state of safety, move all the time, be necessary to detect as soon as possible the unusual and fault of the winch that comprises magnet stopper, simultaneously, be necessary after detecting unusual and fault, to run to nearest floor with making elevator safety in order to make elevator.And the purpose of described invention such as patent documentation 1 to 3 grade just to achieve these goals.
But, in above-mentioned patent documentation 1 disclosed lift facility and since to winch normally and the part of judging unusually, the setting of conditions just is abundant inadequately, so there is the problem can't further improve lift running safety.
In addition, in the testing fixture of described patent documentation 2 disclosed elevator brake torques, be in check stop torque under the state out of service, have when unusual then send abnormal signal if find braking torque at lift car.Promptly, from the content of this scheme, it judges that according to the measured value of braking torque and the magnitude relationship between the setting value for example the setting value with braking torque is set at 200%, then measured value is worth at this and is judged as when above normally, then is judged as less than this value the time unusually.But this scheme exists in measured value than under the little situation of the setting value of braking torque, and what problem the measured value that can't understand braking torque be actually.
In addition, with in the apparatus for diagnosis of abnormality of drg, it detects the swing offset of disk brake main body retaining part at described patent documentation 3 disclosed elevators, to judge the elastomeric aging of supporting disk brake main body, but this scheme is not being made consideration aspect the operation of elevator.
Summary of the invention
The present invention makes in order to address the above problem, the object of the present invention is to provide a kind of lift facility, this lift facility can more correctly detect the normal of winch and unusual, and according to testing result make elevator continue operation or drive to nearest floor after out of service.
To achieve these goals, the lift facility of technical solution of the present invention 1 has winch and conditions judgment means, and this winch comprises: drive rope sheave, a side is connected with lift car, and opposite side and counterbalanced weight bonded assembly master hoist cable volume hang on this driving rope sheave; Electrical motor, this electrical motor moves control by control convenience, is used to drive this driving rope sheave; Coder, this coder are used to detect the rotation information of described driving rope sheave or electrical motor and the location information of lift car; And magnet stopper, this magnet stopper is used for described driving rope sheave and electrical motor are braked, this conditions judgment means is imported the conditions of described winch, and instruct to described control convenience output action according to this conditions, in addition, described magnet stopper has braking force-applying and braking force decontrol, this braking force-applying with brake pad by on the rotating member that is pressed in described winch and brake activation power, this braking force decontrol is resisted this braking force-applying by electromagnet iron plate is carried out electromagnetic attaction with brake off power, described lift facility is characterised in that, input is selected from the braking force of described magnet stopper, the action force of described braking force-applying, the temperature of described brake pad, the operating position between described iron plate and electromagnet of described braking force decontrol, the temperature of electromagnet and at least one conditions in the current of electromagnet, and the operating position that is selected from described braking force-applying, the action force of described braking force decontrol, the rangeability of the operating position of described braking force-applying and described braking force decontrol, the action vibration or the acoustic pressure of described magnet stopper, at least one conditions in the temperature of described electrical motor and the temperature of described coder, be judged as in described conditions judgment means and occurred when unusual, it is out of service that elevator is driven to behind the nearest floor.
According to this structure, can access a kind of lift facility, this lift facility can more correctly detect the normal and unusual of the winch that comprises magnet stopper, and according to testing result make elevator continue operation or drive to nearest floor after out of service.
In addition, according to technical scheme 1, technical scheme 2 described lift facilities are characterised in that, the braking force of described magnet stopper is to be in zero load and to be applied at described lift car to make described electrical motor energising under the state of braking force, produce the motor torque of lift car up direction by described electrical motor, and under the condition that the rotating member that detects described electrical motor through described coder does not rotate, the motor torque that from the relation table of known motor current and motor torque, obtains.
According to this structure, can access a kind of lift facility, this lift facility can obtain actual braking torque, simultaneously the same with technical scheme 1, can more correctly detect the normal and unusual of the winch that comprises magnet stopper, and according to testing result make elevator continue operation or drive to nearest floor after out of service.
In addition, according to technical scheme 1, technical scheme 3 described lift facilities are characterised in that, described braking force-applying is by described brake pad, retarding spring and brake control lever constitute, described brake pad promptly produces braking force as the brake wheel that is braked body by the rotating member of pushing described electrical motor, this retarding spring makes described brake pad push described brake wheel side with brake activation power, described brake control lever connects described brake plate and retarding spring as transom, by the elastic force of the pressure sensor detection that is used to the power that detects in the mechanism that connects described brake pad and retarding spring, detect the operating position of braking force-applying by the position transduser that is used for the detection position in the mechanism that connects described brake pad and retarding spring as the described retarding spring of the action force of described braking force-applying.
According to this structure, can access the lift facility identical with technical scheme 1.
In addition, according to technical scheme 1, technical scheme 4 described lift facilities are characterised in that, described braking force decontrol is by described iron plate, electromagnet and transom constitute, described iron plate is connected with described brake pad, described electromagnet is used for iron plate is carried out electromagnetic attaction, described transom connects described brake pad with described iron plate or be connected described brake pad and described electromagnet, one in described iron plate and the electromagnet is configured to movable, and another is configured to fix, described braking force decontrol is resisted the application of force of described retarding spring and is carried out electromagnetic attaction, remove pushing of described brake pad with brake off power, simultaneously, detect electromagnetic attraction by connecting described brake pad and described iron plate or being connected the pressure sensor that is used to the power that detects in the mechanism of movable side of described brake pad and described electromagnet, by connecting described brake pad and described iron plate or being connected the operating position that the position transduser that is used for the detection position in the mechanism of movable side of described brake pad and described electromagnet detects the braking force decontrol as the described electromagnet of the action force of described braking force decontrol.
According to this structure, can access the lift facility identical with technical scheme 1.
In addition, according to technical scheme 1, technical scheme 5 described lift facilities are characterised in that, by being arranged on the action vibration that vibration sensor that being used on this magnet stopper detect vibration detects described magnet stopper, perhaps by being arranged on the acoustic pressure that sound pressure sensor that near the being used to magnet stopper detect acoustic pressure detects described magnet stopper.
According to this structure, can access the lift facility identical with technical scheme 1.
In addition, according to technical scheme 1, technical scheme 6 described lift facilities are characterised in that, detect the temperature of described electrical motor or the temperature of described coder by the temperature sensor that is arranged on described electrical motor or the coder.
According to this structure, can access the lift facility identical with technical scheme 1.
In addition, according to technical scheme 3 or 4, technical scheme 7 described lift facilities are characterised in that, described position transduser constitutes by carrying out sensor or ON-OFF responding to switch that continuity detects to the position.
According to this structure, can access the lift facility identical with technical scheme 1.
In addition, according to technical scheme 1, technical scheme 8 described lift facilities are characterised in that, pressure action command by the elevator setting scene or make the conditions judgment means action of described winch from the long-range pressure action command of administrative center, and the judged result of the state judging device of described winch is notified to administrative center.
According to this structure, when obtaining the lift facility identical, can also manage the running state of elevator in administrative center with technical scheme 1.
In addition, according to technical scheme 1, technical scheme 9 described lift facilities are characterised in that at each storey setting read out instrument, this read out instrument is used for showing " the conditions judgment means of described winch is worked " or contents such as " elevator are out of service ".
According to this structure, when obtaining the lift facility identical, can also on each floor, show the running state of elevator with technical scheme 1.
The invention effect
According to the present invention, can access a kind of lift facility, this lift facility can more correctly detect the normal of winch and unusual, and according to testing result make elevator continue operation or drive to nearest floor after out of service.
Description of drawings
Fig. 1 is the constructional drawing of the lift facility of one embodiment of the invention.
Fig. 2 is the front view of winch of the example of conduct of Fig. 1.
Fig. 3 is the birds-eye view of Fig. 2.
Fig. 4 is the section drawing at the A-A line place of Fig. 2, the constructional drawing that engages between expression electromagnet and the brake control lever.
Fig. 5 is the section drawing of the retarding spring part of Fig. 2.
Fig. 6 a is the front view of the brake pad part of Fig. 2.
Fig. 6 b is the lateral plan of the brake pad part of Fig. 2.
Fig. 7 a is the constitution diagram of current excitation pattern example of magnet coil of the electromagnet of presentation graphs 2, in this example, is big electric current when beginning to switch on, and drops to holding current afterwards.
Fig. 7 b is the constitution diagram of current excitation pattern example of magnet coil of the electromagnet of presentation graphs 2, in this example, cuts off electric current and keeps certain electric current substantially from beginning to be energized to.
Fig. 8 is the overall flow figure that carries out the elevator operation by the conditions of the winch of judging Fig. 1.
Fig. 9 is that the braking force of presentation graphs 7 is the diagram of circuit of the affirmation step of braking torque.
Figure 10 is the diagram of circuit of the affirmation step of the braking of presentation graphs 7 action force, position and the temperature that apply the various piece under the state.
Figure 11 is the diagram of circuit of affirmation step of action force, position and the temperature of the various piece under the braking disarm state of presentation graphs 7.
Figure 12 is that the difference that the braking of expression Figure 10 applies the testing result between the braking disarm state of state and Figure 11 is the diagram of circuit of the affirmation step of rangeability.
Figure 13 be presentation graphs 7 apply the diagram of circuit of state from braking force to the affirmation step of removing coil current till the action, vibration, acoustic pressure.
Figure 14 is that the expression braking force is when applying and the figure of the determination methods of the testing result of the conditions detecting device of braking force when removing.
Figure 15 is that the expression braking force is when applying and the figure of the determination methods of the testing result of the conditions detecting device of braking force when removing.
Figure 16 is that the expression braking force is when applying and the figure of the determination methods of the testing result of the conditions detecting device of braking force when removing.
Figure 17 a is the concept map of the method for detecting position of other form of implementation of expression the present invention, has represented among the figure that braking applies state.
Figure 17 b is the concept map of the method for detecting position of other form of implementation of expression the present invention, has represented braking releasing state midway among the figure.
Figure 17 c is the concept map of the method for detecting position of other form of implementation of expression the present invention, has represented the braking disarm state among the figure.
Figure 18 a is the concept map of the method for detecting position of another other form of implementation of expression the present invention, has represented among the figure that braking applies state.
Figure 18 b is the concept map of the method for detecting position of another other form of implementation of expression the present invention, has represented the braking disarm state among the figure.
Nomenclature
1 drives rope sheave
2 main hoist cables
3 lift cars
4 counterbalanceds weight
5 electrical motors
6 magnet stoppers
7 coders
8 winchs
9 braking force-applying
10 braking force decontrols
11 brake wheels
12 brake pads
13 retarding springs
14 brake control levers
15 iron plates
16 electromagnet
The 16a transom
17 control setups
18 conditions judgment means
19 conditionss
20 are provided with the scene
21 administrative centers
22 read out instruments
35～38 position transdusers
40,42,43 pressure sensors
44～47 temperature sensors
49 vibratioies sensor
50 sound pressure sensors
The specific embodiment
Followingly form of implementation of the present invention is described with reference to accompanying drawing.
Fig. 1 is the constructional drawing of the lift facility of expression one embodiment of the invention, Fig. 2 is the front view of winch of the example of conduct of Fig. 1, Fig. 3 is the birds-eye view of Fig. 2, Fig. 4 is the section drawing at the A-A line place of Fig. 2, snap-fit relationship between expression electromagnet and the brake control lever, Fig. 5 is the section drawing of the retarding spring part of Fig. 2, Fig. 6 is the constructional drawing of the brake pad part of Fig. 2, Fig. 7 (a) and (b) be the figure of current excitation pattern example of magnet coil of the electromagnet of presentation graphs 2, Fig. 8 is the overall flow figure that carries out the elevator operation by the conditions of the winch of judging Fig. 1, Fig. 9 is that the braking force of presentation graphs 7 is the diagram of circuit of the affirmation step of braking torque, Figure 10 is the action force that the braking of presentation graphs 7 applies the various piece under the state, the position, the diagram of circuit of the affirmation step of temperature, Figure 11 is the action force of the various piece under the braking disarm state of presentation graphs 7, the position, the diagram of circuit of the affirmation step of temperature, Figure 12 is that the difference that the braking of expression Figure 10 applies the testing result between the braking disarm state of state and Figure 11 is the diagram of circuit of the affirmation step of rangeability, Figure 13 is that the braking force of presentation graphs 7 applies state to the coil current of removing till moving, the diagram of circuit of the vibration and the affirmation step of acoustic pressure, Figure 14 is when representing that braking force applies and the figure of the determination range of the testing result of conditions detecting device during the braking force releasing to Figure 16.
In Fig. 1, volume hangs over the two ends that drive the main hoist cable 2 on the rope sheave 1 and engages lift car 3 and counterbalanced weight 4 respectively, and this lift car 3 and counterbalanced weight 4 are hung as bucket type.Described driving rope sheave 1 is driven by electrical motor 5, and makes described driving rope sheave 1, electrical motor 5, lift car 3 and counterbalanced weight 4 remain on halted state by magnet stopper 6.Coder 7 detects described electrical motor 5, the rotation information that drives rope sheave 1 and the location information of lift car 3 etc.Winch 8 is made of described driving rope sheave 1, electrical motor 5, magnet stopper 6 and coder 7.
Described magnet stopper 6 is by to the braking force-applying 9 of the rotating part brake activation power of winch 8 and this braking force-applying 9 is removed action constitute with the braking force decontrol 10 of brake off power.This braking force-applying 9 is by brake pad 12, retarding spring 13 and brake control lever 14 constitute, wherein this brake pad 12 produces braking force by the brake wheel 11 of pushing conduct on the swivel that is arranged on described electrical motor 5 and being braked body, this retarding spring 13 is used to make this brake pad 12 to push described brake wheel 11 sides with brake activation power, this brake control lever 14 is the transoms that connect described brake pad 12 and retarding spring 13, in addition, described braking force decontrol 10 is by iron plate shown in Figure 3 15, electromagnet 16 and transom 16a constitute, wherein iron plate 15 is connected with described brake pad 12,16 pairs of these iron plates 15 of electromagnet carry out electromagnetic attaction, and this transom 16a is used to connect described brake pad 12 and described iron plate 15 or described brake pad 12 and described electromagnet 16.At this moment, described transom 16a is made of the L font arm 29 shown in Figure 4 and the brake control lever 14 of described braking force-applying 9.In addition, the stop mechanism of magnet stopper 6 constitutes by 2 groups.
17 expression control setups, input is fed back in the output of the output of 17 pairs of described coders 7 of this control setup and the charge capacity detector 3a of lift car 3, and the result of input state condition judgement device 18 is with control motor 5.This conditions judgment means 18 is according to the conditions 19 of winch 8, promptly be selected from the braking force of magnet stopper 6, the action force of described braking force-applying, the temperature of described brake pad, the operating position between described iron plate and electromagnet of described braking force decontrol, the temperature of electromagnet, at least one conditions in the current of electromagnet, and the operating position that is selected from described braking force-applying, the action force of described braking force decontrol, the rangeability of the operating position of described braking force-applying and described braking force decontrol, the action vibration or the acoustic pressure of described magnet stopper, the temperature of described electrical motor, at least one conditions in the temperature of described coder carries out state and judges, and with this judged result input control device, if just often then normally move, if then drive to when unusual behind the nearest floor out of service.When confirming the braking force of magnet stopper 6, send instruction to control setup 17 and carry out the action command that braking force is confirmed operation.The affirmation of the conditions 19 of this winch 8 be operated in elevator bring into operation preceding or when not having the passenger or the late into the night equal time section carry out automatically.In addition, this affirmation work is carried out according to the pressure action command that sends at elevator setting scene 20 or from the remote-operated action command of administrative center 21.In addition, when confirming braking force,, then on the read out instrument 22 in each floor entrance hall, show, notify administrative center 21 simultaneously if drive to occasion out of service behind the nearest floor.
Fig. 2 to Fig. 5 represents an example of winch 8.That is, the output shaft 23 of electrical motor 5 is provided with and drives rope sheave 1, brake wheel 11 and coder 7, and is provided with the magnet stopper 6 that this brake wheel 11 is braked.That is to say that winch 8 is made of described electrical motor 5, driving rope sheave 1, magnet stopper 6 and coder 7, these install linearly arrangement.
The first integrally formed pedestal of support 5a of 24 expressions and described electrical motor 5,25 expressions are arranged on second pedestal between this first pedestal 24 and the described support 5a.Brake pad 12 respectively with the periphery brake surface 11a butt of described brake wheel 11.Brake control lever 14 has described brake pad 12, and one end thereof 14a is rotatably mounted by described support 5a.Retarding spring 13 is arranged on the spring-loaded member 26, spring-loaded member 26 then is fixed on described second pedestal 25, the spring rod 27 that is arranged on the other end 14b of brake control lever 14 runs through this spring-loaded member 26 and retarding spring 13 and is fixed by spring mountings 13a, and described brake pad 12 applies pressing force to brake surface 11a.
Described braking force-applying 9 is made of two groups of brake control levers 14 and retarding spring 13, this brake control lever 14 has with the brake pad 12 of described brake wheel 11 butts and in rotatable mode and is supported, and this retarding spring 13 is configured to push described brake pad 12 so that itself and brake wheel 11 butts by this brake control lever 14.
In described braking force decontrol 10, electromagnet 16 is arranged on first pedestal 24, and in order to remove the pressing force of above-mentioned brake pad 12, the output of dependence electromagnet 16 drives the centre portion 14c of described brake control lever 14 respectively.That is to say, described magnet stopper 6 by described brake wheel 11, push this brake wheel 11 with the braking force-applying 9 of brake activation power and overcome this pressing force and the braking force decontrol 10 of brake off power constitutes, described braking force-applying 9 and braking force decontrol 10 are respectively arranged with two groups.
Described coder 7 is connected with the output shaft 23 of described electrical motor 5, and is arranged on by leaf spring 28 on described second pedestal 25 in a side opposite with electrical motor 5 of described brake wheel 11.
Fig. 4 represents to constitute the output of electromagnet 16 of braking force decontrol 10 and the snap-fit relationship between the brake control lever 14.In Fig. 4,29 expressions are by the rotatably mounted lever-type L font arm of first pedestal 24.The long-armed end 29a of this L font arm 29 engages with the other end 30b of the output rod 30 of the movable output that becomes described electromagnet 16, and galianconism end 29b engages with the centre portion 14c of described brake control lever 14.In the present embodiment, the other end 30b of output rod 30 engages with fastened component 31 on being arranged on brake control lever 14 by L font arm 29, directly engages with brake control lever 14 but also can be arranged to export excellent 30 other end 30b.In addition, described transom 14a is made of described brake control lever and L font arm 29.
Described braking force decontrol 10 is made of electromagnet 16 and iron plate 15, be built-in with magnet coil 33 in the yoke 32 of this electromagnet 16, electromagnetic attaction face 34 opposite disposed of this iron plate 15 and this electromagnet 16, one end 30a of output rod 30 is connected with this iron plate 15, run through electromagnet 16 and supported slidably, the other end 30b of output rod 30 is opposite with iron plate 15 one side-prominent towards electromagnet 16.In the present embodiment, described electromagnet 16 is fixed on first pedestal 24 as fixed body, iron plate 15 and output rod 30 can move as movable body, but this fixed body and movable body also can be changed setting, promptly, also iron plate 15 can be fixed on first pedestal 24, be installed on the electromagnet 16 as movable body and will export rod 30.
The action of this winch 8 is as described below.Glancing impact, retarding spring 13 makes brake pad 12 push the brake surface 11a of brake wheel 11 by brake control lever 14, thereby forms braking mode.That is to say, owing to electrical motor 5 and driving rope sheave do not rotate for 1 this moment, so winch 8 is in halted state.When brake off power, make magnet coil 33 energisings and produce magnetic flow, by electromagnetic force iron plate 15 is attracted on electromagnetic attaction face 34, at this moment, output rod 30 is by L font arm 29, overcome the spring force of retarding spring 13 and drive brake control lever 14, thus, brake pad 12 leaves brake surface and brake off.That is to say that because electrical motor 5 is in rotatable state, so electrical motor 5 is switched on and driven winch 8, winch 8 drives volume and hangs over the main hoist cable 2 that drives rope sheave 1, moves thereby make lift car 3 and counterbalanced weight 4 carry out lifting.
Followingly the detecting device of the conditions 19 that detects winch 8 is described with reference to Fig. 2 to Fig. 7.
Detect the position transduser that is provided with the established part position of continuous detecting brake control lever 14 in the detecting device of operating position of described braking force-applying 9 and described braking force decontrol 10.At this moment, position transduser 35 is arranged on the position that can detect brake pad 12 installation sites, and position transduser 36 is arranged on the position that can detect electromagnet 16 actions.The position of the moving part of electromagnet 16 is detected by the position transduser 37 that is arranged between electromagnet 16 and the iron plate 15.The position transduser 38 that detects retarding spring 13 positions is arranged to and can be detected the position of the spring mountings 13a of fastening spring.
As the action force that detects described braking force-applying 9 is the detecting device of the elastic force of retarding spring 13, by between spring rod 27 and brake control lever 14, pressure sensor 40 being set to detect, between brake component 41 that is used to keep brake pad 12 and brake pad 12, laminar pressure sensor 42 is set, to detect pressing force with respect to brake wheel 11.
As the action force that detects described braking force decontrol 10 is the detecting device of the electromagnetic attraction of electromagnet 16, pressure sensor 43 is set to detect on output rod 30.
As temperature-detecting device, temperature sensor 44 is set to detect the temperature of electrical motor on the shell of electrical motor 5, temperature sensor 45 is set to detect the temperature of electromagnet on the shell of electromagnet 16, and the non-rotating part at coder 7 is provided with temperature sensor 46 to detect the temperature of coder, temperature sensor 47 is set to detect the temperature of brake pad 12 on brake pad 12.
As current sensing means, on electric current input line, current sensor 48 is set to detect the electric current of magnet coil 33.In the ordinary course of things, the electric current that flows in magnet coil 33 adopts the pattern shown in Fig. 7 (a), promptly, electric current when beginning to switch on is big, electric current is reduced to holding current afterwards, cut off electric current after again, perhaps adopt the pattern that roughly keeps certain electric current till begin to be energized to power supply and be cut off shown in Fig. 7 (b).
Vibration detection device as detecting described magnet stopper 6 vibrations can be provided with vibration sensor 49 and detect at the arbitrary portion of this magnet stopper 6, but preferably is arranged on the position of the close brake pad 12 of brake control lever 14.
As the detecting device that detects described magnet stopper 6 acoustic pressures, can the arbitrary portion around magnet stopper 6 sound pressure sensor 50 be set and detect, but preferably be arranged on brake wheel 11 or electromagnet 16 near.
The following situation of carrying out the elevator operation that illustrates with reference to Fig. 8 by the conditions 19 of winch 8 is judged.
Whether at first, in step 51, confirm braking force braking torque just, be specified value to judge braking torque.Afterwards, in step 52, under braking force applies state,, judge whether the output of the conditions detecting device of various piece is specified value as affirmation to action force, position and the temperature of the various piece of winch 8.After this, in step 53, under the braking force disarm state,, judge whether the output of conditions 19 detecting devices of various piece is specified value as affirmation to action force, position and the temperature of the various piece of winch 8.After this, in step 54, whether obtaining the difference that described braking force applies between detection output under the state and the output of the detection under the braking force disarm state is rangeability, be specified value to judge this rangeability.After this, in step 55, apply at braking force and to carry out braking force under the state and remove action,, judge whether the output of conditions 19 detecting devices is specified value as affirmation to coil current, vibration and the acoustic pressure of electromagnet 16.If the testing result in the above-mentioned steps 51～55 is specified value, judge that then elevator is in normal condition, can continue operation.In addition,, then be judged as elevator and occurred unusually, and it is out of service that elevator is driven to behind the nearest floor, simultaneously to administrative center's 21 circulars if a certain testing result of described step 51～55 and specified value are not simultaneously.
Following determining step when conditions 19 is judged is described as being the affirmation 51 of braking torque to the braking force among above-mentioned Fig. 8 with reference to Fig. 9.
In step 56, be that braking force applies state with setting state, and make lift car 3 be in light condition, in step 57, make electrical motor 5 energisings produce motor torque with up direction at lift car 3.In step 58, confirm by coder 7 whether brake wheels 11 rotate, in step 59, measure motor current, simultaneously gradually the increasing motor electric current with the increasing motor torque.In step 60, from preprepared motor current and motor torque (that is, because electrical motor 5 is in halted state, think braking torque) relation table in, detect and the cooresponding braking torque of motor current, in step 61, carry out record.In step 62, judge that whether motor current is the motor current with the cooresponding regulation of braking torque of regulation, if answer is negated then to return further increasing motor electric current of step 57.In addition, if the answer of step 62 is sure, can judge that then it is the braking torque of regulation, is in normal condition thereby be judged as.In step 63a, cut off the energising of electrical motor 5, and enter next step processing.In addition, if the answer of step 58 is negated, then since reach the motor current of regulation (Gui Ding braking torque just) before brake wheel 11 rotation has taken place, so being judged as elevator has occurred unusually, in step 63b, cut off the energising of electrical motor 5 simultaneously, and be for further processing.
Followingly illustrate as the braking force among above-mentioned Fig. 8 being applied the affirmation 52 of action force, position and the temperature of winch 8 various pieces under the state, the determining step when conditions 19 is judged with reference to Figure 10.
As conditions 19, in step 64, confirm by the pressing force of the detected brake pad 12 of pressure sensor in regular turn and judge whether it is specified value, in step 65, confirm by the spring force of the detected retarding spring 13 of pressure sensor and judge whether it is specified value, in step 66, confirm by the electromagnetic attraction of the detected electromagnet 16 of pressure sensor and judge whether it is specified value, in step 67, confirm by brake control lever 14 positions of detected brake pad 12 parts of position transduser and judge whether it is specified value, in step 68, confirm by the position of the brake control lever 14 of the output snap portions of the detected electromagnet 16 of position transduser and judge whether it is specified value, in step 69, confirm by the position of the moving part of the detected electromagnet 16 of position transduser and judge whether it is specified value, in step 70, confirm by the position of the detected retarding spring 13 of position transduser and judge whether it is specified value, in step 71, confirm by the temperature of the detected brake pad 12 of temperature sensor and judge whether it is specified value, in step 72, confirm by the temperature of the detected electromagnet 16 of temperature sensor and judge whether it is specified value, in step 73, confirm by the temperature of the detected coder of temperature sensor and judge whether it is specified value, if above-mentioned each result who judges is a specified value, judge that then it is in normal condition and enters next step processing.In addition, if the result of described each detecting device has exceeded specified value, then be judged as and occurred unusual and be for further processing.
The determining step that conditions 19 is judged followingly is described as the affirmation 53 to action force, position and the temperature of winch 8 various pieces under the braking force disarm state among above-mentioned Fig. 8 with reference to Figure 11.Promptly, as illustrated in fig. 10, judge in step 74 whether by the detected testing result of pressure sensor, position transduser and temperature sensor as the detecting device of various piece be specified value to the step 83 in regular turn, if identical, then be judged as and be in normal condition and enter next step processing with specified value.In addition, if described each the result of detecting device has exceeded specified value, then be judged as and occurred unusual and enter next step processing.
The determining step that conditions 19 is judged followingly is described as the affirmation 54 that the braking force among above-mentioned Fig. 8 is applied the rangeability of the action force of winch 8 various pieces between state and the braking force disarm state and position with reference to Figure 12.Promptly, the difference that the braking force of judging above-mentioned Figure 10 applies the affirmation result of the action force of winch 8 various pieces between the braking force disarm state of state and above-mentioned Figure 11 and position is whether the result of rangeability is specified value, be to judge in step 84 in regular turn whether the rangeability of the pressing force of brake pad 12 is specified value specifically, whether the rangeability of judging the spring force of retarding spring 13 in step 85 is specified value, whether the rangeability of judging the electromagnetic attraction of electromagnet 16 in step 86 is specified value, whether the rangeability of judging brake control lever 14 positions of brake pad 12 parts in step 87 is specified value, whether the rangeability of position of brake control lever 14 of judging the output snap portions of electromagnet 16 in step 88 is specified value, whether the rangeability of judging the moving part position of electromagnet 16 in step 89 is specified value, whether the rangeability of judging the position of retarding spring 13 in step 90 is specified value, if identical, then be judged as and be in normal condition and enter next step processing with specified value.In addition, if the testing result of described each detecting device is different with specified value, then judgement has occurred unusual and has entered next step processing.
The determining step that conditions 19 is judged followingly is described as to applying the affirmation 55 of state to coil current, vibration and the acoustic pressure of removing the electromagnet 16 till the action from braking force among above-mentioned Fig. 8 with reference to Figure 13.
As conditions 19, judge in step 91 in regular turn whether the coil current by current sensor 48 detected electromagnet 16 is specified value, judge in step 92 whether the action vibration by vibration sensor 49 detected magnet stoppers 6 is specified value, judge in step 93 whether the action acoustic pressure by sound pressure sensor 50 detected magnet stoppers 6 is specified value, if identical, judge that then it is in normal condition and enters next step processing with specified value.In addition, if the result of described each detecting device is different with specified value, then is judged as and has occurred unusual and enter next step processing.
At this moment, elevator is in halted state under the state owing to applying at braking force, so coil current is zero, vibration is in the ambient vibration state, and acoustic pressure is in the ambient sound pressure condition, so the rangeability till detecting from this state to braking releasing action.In addition, coil current has the powered-on mode shown in above-mentioned Fig. 7 (a) and (b), in the occasion of Fig. 7 (a), with maximum current and holding current as specified value, in the occasion of Fig. 7 (b), with maximum current or holding current as specified value.
In this form of implementation, if not satisfy whole conditionss then to be judged as be that example is described unusually, but also can be set to import the braking force that is selected from described magnet stopper, the action force of described braking force-applying, the temperature of described brake pad, the operating position between described iron plate and electromagnet of described braking force decontrol, the temperature of electromagnet, at least one conditions in the current of electromagnet, and the operating position that is selected from described braking force-applying, the action force of described braking force decontrol, the rangeability of the operating position of described braking force-applying and described braking force decontrol, the action vibration or the acoustic pressure of described magnet stopper, the temperature of described electrical motor, at least one conditions in the temperature of described coder, occurred when unusual when described conditions judgment means is judged as, it is out of service that elevator is driven to behind the nearest floor.
Following when applying and the determination methods of the testing result of the detecting device of the conditions 19 of braking force when removing with reference to the described braking force of Figure 14 to 16 explanation.
Figure 14 can be applied to the following conditions in the conditions 19 among Fig. 1.
These conditionss refer to that specifically as the operating position of the spring force of the action force of braking bringing device, braking bringing device, as the action force of braking bringing device be that operating position, the braking of electromagnetic attraction, the brake removing device of electromagnet 16 applies the action force between state and the braking disarm state and the rangeability of operating position
That is, each specified value is set at:
Braking force applies specified value=expected value (the B1) ± permissible range (α 1) of the testing result under the state
Specified value=the expected value of the testing result under the braking force disarm state (B2) ± permissible range (β 1)
Braking force applies specified value=expected value (B3) ± permissible range (γ 1) of the rangeability result of state and braking force disarm state, is judged as in the time of in the afore mentioned rules value normally, then is judged as unusual in the time of beyond the afore mentioned rules value.
In addition, Figure 15 can be applied to the coil current of the electromagnet 16 among Fig. 1.For example, shown in above-mentioned Fig. 7 (a), if it is big to be set at when beginning to switch on electric current, behind certain hour, become the coil current pattern of holding current, then detect maximum current and holding current when beginning to switch on, and the same with above-mentioned Figure 14, each specified value is set at:
Specified value=the expected value of holding current (B4) ± permissible range (α 2)
Specified value=the expected value of maximum current (B5) ± permissible range (β 2) is judged as in the time of in the afore mentioned rules value normally, then is judged as unusual in the time of beyond the afore mentioned rules value.
If set for shown in Fig. 7 (b) from begin to be energized to the coil current pattern that keeps certain electric current till the supply disconnecton always, then can with maximum current shown in Fig. 7 (a) or the carrying out in the holding current detect one as specified value.
In addition, Figure 16 can be applied to the following conditions in the conditions 19 of Fig. 1.
These conditionss specifically refer to the sound of brake pad temperature, electromagnet temperature, motor temperature, coder temperature, brakeage vibration and drg action.That is, as specified value, be judged as normally in the time of in the afore mentioned rules value expected value (the B6) ± permissible range (α 3) of target temperature, target magnitude of vibrations and target acoustic pressure size, then be judged as unusual in the time of beyond the afore mentioned rules value.
Followingly other form of implementation is described to Figure 17 (c) with reference to Figure 17 (a).
Figure 17 (a) is to the method for detecting position of other form of implementation of Figure 17 (c) expression the present invention.Be that with the difference of above-mentioned form of implementation of the present invention in above-mentioned form of implementation, described position transduser detects continuously, and in this form of implementation, position transduser is made of the ON-OFF switch.
When applying state and be benchmark, shown in Figure 17 (a), detect brake control lever or the retarding spring of Fig. 4 or the position of iron plate as above-mentioned Fig. 2 of detected body 94 by 4 switches with the braking shown in Figure 17 (a).Promptly, apply aspect the specified value under the state in the braking shown in above-mentioned Figure 14, make switch 95 corresponding with expected value (B1)-permissible range (α 1), make switch 96 corresponding with expected value (B1)+permissible range (α 1), make switch 97 corresponding, make switch 98 corresponding with expected value (B2)+permissible range (β 1) with expected value (B2)-permissible range (β 1).Aspect direction, general+side is removed direction of action as braking force.
Therefore, shown in Figure 17 (b), carrying out braking force when removing action, detected body 94 be in braking force remove action midway the time, at first by switch 97 responses, after further action, shown in Figure 17 (c), finish braking force and remove action.Carry out Figure 17 (a) to the action of Figure 17 (c) at this detected body, switch 97 has been responded and switch 98 does not have the state of response as normal condition, the state that two switches 97,98 are all responded or do not respond is as error state.In addition, apply under the state when moving at braking force at detected body 94 towards the direction of removing direction of action with braking force, be judged as and switch 96 responded and switch 95 does not have the state of response as normal condition, the state that two switches 95,96 are all responded or do not respond is as error state.
According to this form of implementation, compare with having used expensive continuous detecting type position transduser in the above-mentioned form of implementation, owing to used the ON-OFF switch of microswitch etc., can obtain effect with cheap price structure sensor.
Below with further reference to Figure 18 (a) and Figure 18 (b) other form of implementation is described.
The Figure 18 (a) and (b) method for detecting position of expression the present invention other form of implementation.Be with the difference of above-mentioned form of implementation, in above-mentioned form of implementation, adopted the structure that constitutes by 4 ON-OFF switches, and in this form of implementation, adopted the structure that constitutes with 2 ON-OFF switches.Promptly, the ON-OFF switch is arranged to remove the expected value (B2) of direction of action with the braking force of detected body 94 and to remove the expected value (B1) of direction of direction of action corresponding with braking force, remove on the direction at braking force, when less than the specified value of position, be judged as and be in error state, and under braking applies state, in the position towards with braking force releasing side when mobile in the opposite direction, with more than the specified value as error state.
When applying state and be benchmark, shown in Figure 18 (a), use 2 switches to detect position as the iron plate of the retarding spring of the brake control lever of above-mentioned Fig. 2 of detected body 94 or Fig. 5 or Fig. 4 with the braking of Figure 18 (a).That is, apply aspect the specified value under the state, make switch 99 corresponding, make switch 100 corresponding with expected value (B2) with expected value (B1) in above-mentioned braking shown in Figure 14.
Therefore, shown in Figure 18 (b), remove in the action at braking force, when braking force is removed release, if switch 100 responses then are judged as and are in normal condition, if not response of switch 100, then be judged as occurred unusual.In addition, under braking force applies state, at detected body 94 when the direction of removing direction of action with braking force moves, if not response of switch 99 then is judged as and is in normal condition, and if switch 99 has responded, then be judged as occurred unusual.
According to this form of implementation, by limiting detection range, make the ON-OFF switch of microswitch etc. reduce to two, to compare with above-mentioned form of implementation, the quantity of switch has reduced half, so can obtain the effect with more cheap price structure sensor.
Claims (9)
1. lift facility, it has winch and conditions judgment means, and this winch comprises: drive rope sheave, roll up on this drivings rope sheave and hang with the main hoist cable that a side engages with lift car, opposite side engages with counterbalanced weight; Electrical motor, this electrical motor moves control by control convenience, is used to drive this driving rope sheave; Coder, this coder are used to detect the rotation information of described driving rope sheave or electrical motor and the location information of lift car; And magnet stopper, this magnet stopper is used for described driving rope sheave and electrical motor are braked, described conditions judgment means is imported the conditions of described winch, and instruct to described control convenience output action according to this conditions, in addition, described magnet stopper has braking force-applying and braking force decontrol, this braking force-applying with brake pad by on the rotating member that is pressed in described winch and brake activation power, this braking force decontrol is resisted this braking force-applying by electromagnet iron plate is carried out electromagnetic attaction with brake off power, described lift facility is characterised in that
Input is selected from the braking force of described magnet stopper, the action force of described braking force-applying, the temperature of described brake pad, the operating position between described iron plate and electromagnet of described braking force decontrol, the temperature of electromagnet and at least one conditions in the current of electromagnet, and the operating position that is selected from described braking force-applying, the action force of described braking force decontrol, the rangeability of the operating position of described braking force-applying and described braking force decontrol, the action vibration or the acoustic pressure of described magnet stopper, at least a conditions in the temperature of described electrical motor and the temperature of described coder, be judged as in described conditions judgment means and occurred when unusual, it is out of service that elevator is driven to behind the nearest floor.
2. lift facility as claimed in claim 1 is characterized in that,
The braking force of described magnet stopper is to be in zero load and to be applied at described lift car to make described electrical motor energising under the state of braking force, produce the motor torque of lift car up direction by described electrical motor, and under the condition that the rotating member that detects described electrical motor through described coder does not rotate, the motor torque that from the relation table of known motor current and motor torque, obtains.
3. lift facility as claimed in claim 1 is characterized in that,
Described braking force-applying is by described brake pad, retarding spring and brake control lever constitute, described brake pad promptly produces braking force as the brake wheel that is braked body by the rotating member of pushing described electrical motor, this retarding spring makes described brake pad push described brake wheel side with brake activation power, described brake control lever connects described brake plate and retarding spring as transom, by the elastic force of the pressure sensor detection that is used to the power that detects in the mechanism that connects described brake pad and retarding spring, detect the operating position of braking force-applying by the position transduser that is used for the detection position in the mechanism that connects described brake pad and retarding spring as the described retarding spring of the action force of described braking force-applying.
4. lift facility as claimed in claim 1 is characterized in that,
Described braking force decontrol is by described iron plate, electromagnet and transom constitute, described iron plate is connected with described brake pad, described electromagnet is used for this iron plate is carried out electromagnetic attaction, described transom connects described brake pad with described iron plate or be connected described brake pad and described electromagnet, one in described iron plate and the electromagnet is configured to movable, and another is configured to fix, described braking force decontrol is resisted the application of force of described retarding spring and is carried out electromagnetic attaction, remove pushing of described brake pad with brake off power, simultaneously, detect electromagnetic attraction by connecting described brake pad and described iron plate or being connected the pressure sensor that is used to the power that detects in the mechanism of movable side of described brake pad and described electromagnet, by connecting described brake pad and described iron plate or being connected the operating position that the position transduser that is used for the detection position in the mechanism of movable side of described brake pad and described electromagnet detects the braking force decontrol as the described electromagnet of the action force of described braking force decontrol.
5. lift facility as claimed in claim 1 is characterized in that,
By being arranged on the action vibration that vibration sensor that being used on this magnet stopper detect vibration detects described magnet stopper, perhaps by being arranged on the acoustic pressure that sound pressure sensor that near the being used to magnet stopper detect acoustic pressure detects described magnet stopper.
6. lift facility as claimed in claim 1 is characterized in that,
Detect the temperature of described electrical motor or the temperature of described coder by the temperature sensor that is arranged on described electrical motor or the coder.
7. as claim 3 or 4 described lift facilities, it is characterized in that,
Described position transduser constitutes by carrying out sensor or ON-OFF responding to switch that continuity detects to the position.
8. lift facility as claimed in claim 1 is characterized in that,
Pressure action command by the elevator setting scene or make the conditions judgment means action of described winch from the long-range pressure action command of administrative center, and the judged result of the state judging device of described winch is notified to administrative center.
9. lift facility as claimed in claim 1 is characterized in that,
At each storey setting read out instrument, this read out instrument is used for showing " the conditions judgment means of described winch is worked " or contents such as " elevator are out of service ".
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-065322 | 2007-03-14 | ||
| JP2007065322A JP4574636B2 (en) | 2007-03-14 | 2007-03-14 | Elevator equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101264840A true CN101264840A (en) | 2008-09-17 |
| CN101264840B CN101264840B (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100096263A Expired - Fee Related CN101264840B (en) | 2007-03-14 | 2008-02-19 | Elevator device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4574636B2 (en) |
| CN (1) | CN101264840B (en) |
| HK (1) | HK1119646A1 (en) |
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| CN102115002A (en) * | 2010-01-04 | 2011-07-06 | 东芝电梯株式会社 | Elevator system |
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| CN102653367A (en) * | 2011-03-01 | 2012-09-05 | 东芝电梯株式会社 | Elevator control device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101264840B (en) | 2012-05-09 |
| JP4574636B2 (en) | 2010-11-04 |
| JP2008222394A (en) | 2008-09-25 |
| HK1119646A1 (en) | 2009-03-13 |
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