CN103466402B - Lift appliance - Google Patents
Lift appliance Download PDFInfo
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- CN103466402B CN103466402B CN201310413980.3A CN201310413980A CN103466402B CN 103466402 B CN103466402 B CN 103466402B CN 201310413980 A CN201310413980 A CN 201310413980A CN 103466402 B CN103466402 B CN 103466402B
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- car
- rope sheave
- sheave
- driving rope
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
Abstract
In lift appliance, car and counterweight are hung by suspension body.Suspension body is wound onto on the driving rope sheave of towing machine.Sheave-side detecting unit is driven to produce the signal corresponding with driving the rotation of rope sheave.Suspension side detection unit produces the mobile corresponding signal with car or suspension body.State monitoring apparatus, by the position signal of the next self-driven sheave-side detecting unit started from car to stopping and from the deviation the position signal hanging side detection unit, compares with predetermined threshold curve, carries out status surveillance.
Description
The application is international filing date is on July 9th, 2009, and China national application number is 200980133213.9, and denomination of invention is the divisional application of the application for a patent for invention of " lift appliance ".
Technical field
The present invention relates to the lift appliance with state monitoring apparatus, can monitor that such as tractive force declines and degradation state of the system under braking force.
Background technology
In the state monitoring apparatus of elevator in the past, the position signal XIG of the absolute position signal XABS of car and motor (towing machine) is compared, when both deviations are greater than certain threshold value, be judged to be that creating tractive force declines, and makes car emergent stopping.And, the value of the XIG during band shape mark of the certain length by being located at each floor and label length are compared, when both deviations are greater than certain threshold value, are judged to be that creating tractive force declines, make car emergent stopping (such as with reference to patent documentation 1).
And, in other state monitoring apparatus in the past, by detect car cease and desist order after motor removing amount and car amount of movement compare, if motor removing amount is below threshold value and car amount of movement is more than threshold value, be then judged to create rope slipping (tractive force decline).Further, when detecting that the motor removing amount after car is ceased and desisted order and car amount of movement do not have deviation and both exceed threshold value, be judged to be that the braking force creating brake equipment declines (such as with reference to patent documentation 2).
Patent documentation 1: Japanese Unexamined Patent Publication 2005-343696 publication (Fig. 2, Fig. 4)
Patent documentation 2: Japanese Unexamined Patent Publication 11-199153 publication (Fig. 2, Fig. 3)
The state monitoring apparatus in above-mentioned past exist detect summary responses, elevator operating efficiency, can monitoring range, problem to aspects such as the accuracy requirement of sensor, the quantity of necessary sensor and decision conditions.
That is, as benchmark, if car is mobile in whole hoistway just can not obtain data, thus there is the problem of the summary responses of detection using the height of hoistway entirety in the supervision method of the tractive force decline of above-mentioned the 1st device (patent documentation 1).Further, at the obstacle wanting to implement to become elevator operation when monitoring.
In addition, other supervision method that the tractive force of the 1st above-mentioned device declines, using being located at the label length of each floor as benchmark, thus can monitor that place is limited near floor (at this, near refer to the position of the distance corresponding with label length).Further, the benchmark of threshold value is the car corresponding with label length and the departure of motor, and label length is about apart from upper and lower tens centimetres of floor usually, thus has to set less threshold value.Therefore, as the sensor of the position signal for obtaining motor (towing machine), precision prescribed is higher than the sensor in past.In addition, the supervision method that the tractive force of the 1st above-mentioned device declines needs the absolute position transducer of car and these two sensors of position transduser of motor.
In addition, there is the problem can only carrying out when car enters stopping action monitoring in the supervision method that the rope slipping of above-mentioned the 2nd device (patent documentation 2) and braking force decline.Further, because the rope hanging car is elastic body, thus vibrate due to the boarding descending stair of people, but the towing machine of halted state is kept by drg, thus motor does not vibrate.Therefore, there is the unpractical problem of above-mentioned condition, namely detecting that the motor removing amount after car is ceased and desisted order and car amount of movement do not have deviation to be unpractical.
Summary of the invention
The present invention proposes to solve the problem just, its object is to, and provides a kind of lift appliance that can carry out status surveillance more accurately.
Lift appliance of the present invention has: car; Counterweight; Suspension body, it hangs car and counterweight; Towing machine, it has the traction machine brake that the driving rope sheave being wound with suspension body, the motor that driving rope sheave is rotated and the rotation to driving rope sheave are braked; Drive sheave-side detecting unit, it produces the signal corresponding with driving the rotation of rope sheave; Hang side detection unit, it produces the mobile corresponding signal with car or suspension body; And state monitoring apparatus, its by start from car to stop next self-driven sheave-side detecting unit position signal and from suspension side detection unit position signal deviation, compare with predetermined threshold curve, carry out status surveillance.
Further, lift appliance of the present invention has: car; Counterweight; Suspension body, it hangs car and counterweight; Towing machine, it has the traction machine brake that the driving rope sheave being wound with suspension body, the motor that driving rope sheave is rotated and the rotation to driving rope sheave are braked; Drive sheave-side detecting unit, it produces the signal corresponding with driving the rotation of rope sheave; Brake detecting unit, it detects the action/non-action of traction machine brake; And state monitoring apparatus, when traction machine brake is being carried out action by it, the speedup amount of the speed signal of self-driven sheave-side detecting unit and predetermined threshold speed compare, and carry out status surveillance.
Further, lift appliance of the present invention has: car; Counterweight; Suspension body, it hangs car and counterweight; Towing machine, it has the traction machine brake that the driving rope sheave being wound with suspension body, the motor that driving rope sheave is rotated and the rotation to driving rope sheave are braked; Drive sheave-side detecting unit, it produces the signal corresponding with driving the rotation of rope sheave; Detecting unit between test zone, it detects the situation of car middle movement between the test zone set in hoistway in advance; And state monitoring apparatus, it, by the front and back of car shuttle between test zone, carrys out the deviation of the position signal of the driving rope sheave of self-driven sheave-side detecting unit, compares, carry out status surveillance with predetermined threshold value.
Further, lift appliance of the present invention has: car; Counterweight; Suspension body, it hangs car and counterweight; Towing machine, it has the traction machine brake that the driving rope sheave being wound with suspension body, the motor that driving rope sheave is rotated and the rotation to driving rope sheave are braked; Drive sheave-side detecting unit, it produces the signal corresponding with driving the rotation of rope sheave; Detecting unit between test zone, it detects the situation of car middle movement between the test zone set in hoistway in advance; And state monitoring apparatus, the front and back of one way movement in car is between test zone are carried out the difference between the length between the amount of movement of the driving rope sheave of self-driven sheave-side detecting unit and test zone, are compared, carry out status surveillance with threshold value by it.
Lift appliance of the present invention is using starting from car to the car stopped or suspension body and driving the position signal deviation of rope sheave as monitored object, thus monitoring range is not limited, with using the length of each floor mark compared with monitoring range, do not require sensor accuracy.Further, due to using driving the rotating signal of rope sheave as benchmark, the impact of the vibration being subject to car or suspension body is thus not easy.
Further, because the speedup amount of the driving rope sheave using carrying out action from traction machine brake is as supervision project, and compare with threshold speed, be thus not easy the impact of the vibration being subject to car or suspension body.Further, supervision when car stops can not only being carried out, supervision when car is advanced can also be carried out.
In addition, due to using the departure of the driving rope sheave position on fixed position when advancing between the test zone of car in hoistway as benchmark to carry out abnormality juding, thus do not need the unit of the amount of movement detecting car or suspension body.
Accompanying drawing explanation
Fig. 1 is the constructional drawing of the lift appliance representing embodiments of the present invention 1.
Fig. 2 is the block diagram of the structure of the state monitoring apparatus representing Fig. 1.
Fig. 3 is the diagram of circuit of the action of the detection unit representing Fig. 2.
Fig. 4 is the diagram of curves of the 1st example of curve (profile) F1, F2, the F3 of the threshold value representing the position deviation used by the detection unit of Fig. 2.
Fig. 5 is the diagram of curves of the 2nd example of curve F1, F2, the F3 of the threshold value representing the position deviation used by the detection unit of Fig. 2.
Fig. 6 is the constructional drawing of the lift appliance representing embodiments of the present invention 2.
Fig. 7 is the block diagram of the structure of the state monitoring apparatus representing Fig. 6.
Fig. 8 is the diagram of circuit of the action of the detection unit representing Fig. 7.
Fig. 9 is the constructional drawing of the lift appliance representing embodiments of the present invention 3.
Figure 10 is the block diagram of the structure of the state monitoring apparatus representing Fig. 9.
Figure 11 is the diagram of circuit of the action of the detection unit representing Figure 10.
Detailed description of the invention
Below, illustrate for implementing mode of the present invention with reference to accompanying drawing.
Embodiment 1
Fig. 1 is the constructional drawing of the lift appliance representing embodiments of the present invention 1.In the drawings, car 1 and counterweight 2 are suspended in hoistway by the many main ropes 3 as suspension body, and the propulsive effort by towing machine 4 is elevated in hoistway.Suspension body can adopt many load-transfer devices.Multiple guide rails (not shown) of the lifting guiding car 1 and counterweight 2 are provided with in hoistway.
Towing machine 4 has the traction machine brake 7 that the driving rope sheave 5 being wound with main rope 3, the motor 6 that driving rope sheave 5 is rotated and the rotation to driving rope sheave 5 are braked.
Traction machine brake 7 such as adopts electro-magnetic braking device.In electro-magnetic braking device, brake shoe is pressed against on brake surface by the elastic force of retarding spring, to driving the rotation of rope sheave 5 to brake, brakes car 1.Further, by encouraging electromagnet, brake shoe leaves from brake surface, and braking force is removed.In addition, the braking force applied by traction machine brake 7 according to flow to electromagnet restraining coil current value and change.
Further, the deflector wheel 8 being provided with near rope sheave 5 and being wound with main rope 3 is being driven.In addition, the fixed part in hoistway, being provided with emergency braking device 9, braking by holding main rope 3 pairs of cars 1 near deflector wheel 8.
Be provided with the motor encoder 11 as driving sheave-side detecting unit (the 1st detecting unit) at motor 6, it produces and the rotation of the S. A. of motor 6, the signal that namely drives the rotation of rope sheave 5 corresponding.In addition, as long as drive sheave-side detecting unit can detect the rotation amount driving rope sheave 5, such as, magslip or tachogenerator etc. can be adopted.
The running of towing machine 4 is controlled by control device for running the engine 12.Control device for running the engine 12 makes car 1 run, stop according to call.Further, the signal that control device for running the engine 12 obtains according to the output from motor encoder 11 is converted to speed, provides command signal to power inverter 13, relay 14 and traction machine brake 7.
Power inverter 13 provides electric power according to the order from control device for running the engine 12 to motor 6, makes car 1 advance thus.Control device for running the engine 12 makes relay 14 disconnect when the emergency braking that urgency level is higher, cuts off and supplies the electric power of motor 6, interrupts the generation of motor torque, and makes traction machine brake 7 action.
Speed regulator rope 21 is wound onto on governor belt pulley 20.The both ends of speed regulator rope 21 are connected with car 1.Further, tension wheel 22 is hung with in the bottom of speed regulator rope 21, for providing tension force to speed regulator rope 21.Thus, governor belt pulley 20 and car 1 advance and the movement of main rope 3 synchronously rotates.
The governor coder 23 as hanging side detection unit (the 2nd detecting unit) is provided with at governor belt pulley 20, it produces the signal corresponding with the rotation of governor belt pulley 20 (that is, corresponding with the movement of car 1 and main rope 3 signal).In addition, as long as hang the position (amount of movement) that side detection unit can detect car 1 or main rope 3, such as, magslip or tachogenerator etc. can be adopted.
The output signal of motor encoder 11 and governor coder 23 is imported into state monitoring apparatus 30.State monitoring apparatus 30, according to the output signal of motor encoder 11 and governor coder 23, monitors that tractive force declines.That is, state monitoring apparatus 30 monitors with driving the position deviation of rope sheave 5 circuit that tractive force declines according to main rope 3.
Fig. 2 is the block diagram of the structure of the state monitoring apparatus 30 representing Fig. 1.The output of governor coder 23 is converted into position signal D1 by position transducer 31.The output of motor encoder 11 is converted into position signal D2 by position transducer 31.
The position signal D1 Negotiation speed conv 32 of governor coder 23 is converted into speed signal V1.Speed signal V1 is converted into speed signal V2 by low-pass filter 33.The characteristic oscillation number that the cutoff frequency of low-pass filter has according to elevator device and changing, normally several hertz.
Detection unit 34, according to position signal D1, D2 and speed signal V1, V2, monitors the state of lift appliance.Further, detection unit 34, when being judged to be that lift appliance creates error state, according to the grade of this error state, exports output signal L1, L2, the L3 for tackling error state.The function of detection unit 34 such as can utilize micro computer or analog logic circuit realiration.
Fig. 3 is the diagram of circuit of the action of the detection unit 34 representing Fig. 2.If from the speed signal V1 of the car 1 of governor coder 23 near zero and at the threshold speed Vstart more than larger than zero, then detection unit 34 starts to monitor (step 1).After starting supervision, detection unit 34 carries out the position signal D2 from motor encoder 11 to store (step 2) as initial value D0.
The monitor program of detection unit 34 comprises following three steps.Namely, first by the location information D1 of the car 1 from governor coder 23 and the position deviation (| D1-D2|) from the location information D2 of the driving rope sheave 5 of motor encoder 11, compare with using the curve F3 driving the amount of movement of rope sheave 5 (Δ D2=|D2-D0|) as the threshold value of benchmark, if position deviation is larger than F3, then be judged to be exception, output signal output L3 (step 3).
Then, position deviation (| D1-D2|) is compared with curve F2, if position deviation is larger than F2, is then judged to be exception, output signal output L2 (step 4).Finally, position deviation (| D1-D2|) is compared with curve F1, if position deviation is larger than F1, is then judged to be exception, output signal output L1 (step 5).
Curve F1, F2, F3 as the threshold value of the determinating reference of position deviation correspond to the decline grade of tractive force, F3>F2>F1.Further, the curve of position deviation and threshold value compares by detection unit 34, is judged to be exception when exceeding threshold value, according to exceeding grade output signal output L1, L2, L3.
When judge be to the usual operation of lift appliance do not hinder through observation grade, to control device for running the engine 12 output signal output L1.Control device for running the engine 12 record receives the situation of output signal L1, but does not give an order to towing machine 4 and emergency braking device 9.Further, service personnel confirms the reception historic records of the output signal L1 in control device for running the engine 12 when periodic inspection, if received, then thickly carries out the maintenance of main rope 3 and driving rope sheave 5 week.
When judge be flat bed deviation etc. likely to when usually running the service stopping grade producing and hinder, to control device for running the engine 12 output signal output L2.When control device for running the engine 12 receives output signal L2, control power inverter 13 and make car 1 rest in nearest floor.Stopping deceleration/decel now can be less than common stopping deceleration/decel.Then, relay 14 is disconnected, cut off and the electric power of motor 6 is supplied, interrupt the generation of motor torque, and make traction machine brake 7 action, make elevator under passenger.Further, require service personnel to go to work by telephone line etc., stop the service of lift appliance.
When judging to be the emergent stopping grade needing to stop at once, to emergency braking device 9 output signal output L3.Emergency braking device 9 is when power supply is cut off, and holds the brake equipment of the fail safe type that main rope 3 pairs of cars 1 are braked, and cuts off supplying the electric power of emergency braking device 9 according to output signal L3.
After above-mentioned monitor program terminates, the speed signal V2 of car 1 and threshold speed Vend is compared (step 6), if V2>Vend, then returns step 3, repeatedly carry out monitor program.Further, if V2≤Vend, then terminate to monitor, and return step 1.
In said procedure, speed signal V1 is not by the speed signal of the car 1 of filtering process, and the action that thus can capture rapidly car 1 in step 1 starts and starts to monitor.Further, even if when driving the rotation of rope sheave 5 to stop, just in case car 1 starts action, then the supervision that can will begin in a minute due to the skidding of main rope 3.
On the other hand, the end of supervision needs reliably confirming the basis that car 1 has stopped being carried out.But because car 1 suspended on by as elastomeric main rope 3, thus the speed of car 1 is in vibration, is difficult to the stopping judging car 1 in this state.Therefore, the speed signal V2 obtained implementing low-pass filtering treatment to speed signal V1 is used as to monitor the judgement speed terminated.Now, the speed signal V2 after low-pass filtering treatment, also in slow vibration, thus can think speed signal V2 after car 1 stops lower than zero.Therefore, threshold value Vend can be set as zero.
If adopt this monitor start, stop algorithm, then with monitor merely all the time position deviation situation (offset in this case and accumulated) compared with, whenever stopping hour offset being reset, thus can realize monitoring more accurately.Further, due to using the car of car 1 from start to stopping 1 with drive the position signal deviation of rope sheave 5 as monitored object, thus can not limit monitoring range.
Fig. 4 is the diagram of curves of the 1st example of curve F1, F2, the F3 of the threshold value representing the position deviation used by the detection unit 34 of Fig. 2.F1, F2, F3 in 1st example utilize following formula to be expressed as follows (formula (1) ~ formula (3)).
F1＝α*ΔD2+δ1……(1)
F2＝α*ΔD2+δ2……(2)
F3＝α*ΔD2+δ3……(3)
Wherein, using elevator device relative to driving the maxim of the rate of creeping of the amount of movement of rope sheave 5 (the driving rope sheave 5 produced under usual travel condition and the sliding ratio of main rope 3) as benchmark, factor alpha is set to large to the degree can not carrying out misoperation.Such as, δ 1, as benchmark, is set to large to the degree can not carrying out misoperation by the maxim of the creep rate of maxim as benchmark or when car is accelerated of the displacement vibration amplitude of the car 1 produced when car 1 being shaken using set strength in car 1 passenger.Further considering for δ 1 prevents the surplus of misoperation to set δ 2, δ 3, makes δ 1< δ 2< δ 3.
Fig. 5 is the diagram of curves of the 2nd example of curve F1, F2, the F3 of the threshold value representing the position deviation used by the detection unit 34 of Fig. 2.F1, F2, F3 in 2nd example utilize following formula to be expressed as follows (formula (4) ~ formula (6)).
F1＝α1*ΔD2+δ……(4)
F2＝α2*ΔD2+δ……(5)
F3＝α3*ΔD2+δ……(6)
Wherein, factor alpha 1 is identical with the α of formula (1).Consider that the surplus can not carrying out the degree of misoperation is to set α 2, α 3, makes α 1< α 2< α 3 for α 1.δ is identical with the δ 1 of formula (1).
Like this, owing to being suitable for the curve that threshold value changes according to driving the amount of movement Δ D2 of rope sheave 5, thus monitored that precision improves.Further, due to using driving the amount of movement Δ D2 of rope sheave 5 as benchmark, the impact of the vibration being subject to car 1 or main rope 3 is thus not easy.
In addition, the situation (Fig. 4) that the slope of F1, F2, F3 is fixing relative to Δ D2 and the situation (Fig. 5) that displacement vibration amplitude is fixed have been shown in embodiment 1, but curve F1, F2, F3 of threshold value are not limited to these situations, as long as change according to driving the amount of movement Δ D2 of rope sheave 5, just identical effect can be played.
Further, when exceeding the curve of the higher threshold value of this hazard level of such as F3, emergency braking device 9 carries out action, thus must avoid misoperation.Therefore, also threshold curve can be set as higher than F1, F2, and be the fixed value irrelevant with driving the amount of movement Δ D2 of rope sheave 5.
In addition, in embodiment 1, be three phases the curve setting of threshold value, but stage quantity is not limited to three.
Embodiment 2
Below, Fig. 6 is the constructional drawing of the lift appliance representing embodiments of the present invention 2.In the drawings, the brake switch 45 as brake detecting unit (the 3rd detecting unit) is provided with, for detecting the action/non-action of traction machine brake 7 at traction machine brake 7.Brake switch 45 is the switches of the action/non-action judging traction machine brake 7 according to the movement of the movable part in traction machine brake 7.Further, brake switch 45 exports ON signal when traction machine brake 7 is operating state (braking modes), exports OFF signal when being non-action status (disarm state).
The output signal of motor encoder 11 and brake switch 45 is imported into state monitoring apparatus 40.State monitoring apparatus 40, according to the output signal of motor encoder 11 and brake switch 45, monitors the decline of the braking potential of traction machine brake 7.That is, state monitoring apparatus 40 is the circuit according to driving the speedup degree of rope sheave 5 to monitor the decline of the braking potential of traction machine brake 7.
Fig. 7 is the block diagram of the structure of the state monitoring apparatus 40 representing Fig. 6.The output of motor encoder 11 is converted into speed signal V11 by position transducer 41 and velocity transducer 42.Detection unit 44, according to the output signal S1 of speed signal V11 and brake switch 45, monitors the state of lift appliance.
Further, detection unit 44, when being judged to be that lift appliance creates error state, according to the grade of this error state, exports output signal L11, L12, the L13 for tackling error state.The function of detection unit 44 such as can utilize micro computer or analog logic circuit realiration.Other structure is identical with embodiment 1.
Fig. 8 is the diagram of circuit of the action of the detection unit 44 representing Fig. 7.If the output signal S1 of brake switch 45 is ON, then detection unit 44 starts to monitor (step 11).After starting supervision, detection unit 44 carries out the speed signal V11 of the driving rope sheave 5 from motor encoder 11 to store (step 12) as rate of onset V0.
The monitor program of detection unit 44 comprises following three steps.Namely, first by the speedup amount (Δ V11=|V11|-|V0|) of the speed signal V11 of the driving rope sheave 5 from motor encoder 11 relative to rate of onset V0, compare with threshold speed δ 13, if V11 is larger than threshold value δ 13 for speedup amount Δ, then be judged to be exception, output signal output L13 (step 13).
Then, speedup amount Δ V11 and threshold speed δ 12 is compared, if speedup amount Δ V11 is larger than threshold value δ 12, be then judged to be exception, output signal output L12 (step 14).Finally, speedup amount Δ V11 and threshold speed δ 11 is compared, if speedup amount is larger than threshold value δ 11, be then judged to be exception, output signal output L11 (step 15).
After above-mentioned monitor program terminates, confirm the output signal S1 (step 16) of brake switch 45, if ON, then return step 13 and repeatedly carry out monitor program.Further, if output signal S1 is OFF, then terminates to monitor and return step 11.
Consider the action delay, decision delay etc. of traction machine brake 7, using the maximum speedup degree of elevator device during traction machine brake 7 regular event as benchmark, threshold speed δ 11 is set to large to the degree can not carrying out misoperation.Further considering for δ 11 prevents the surplus of misoperation to set δ 12, δ 13, makes δ 11< δ 12< δ 13.
That is, as threshold speed δ 11, δ 12, the δ 13 of the determinating reference of speedup amount, corresponding to the decline grade of braking potential, δ 13> δ 12> δ 11.Further, the speedup degree and threshold speed that drive rope sheave 5 compare by detection unit 44, are judged to be exception, according to exceeding grade output signal output L11, L12, L13 when exceeding threshold value.
When judge be to the usual operation of lift appliance do not hinder through observation grade, to control device for running the engine 12 output signal output L11.Control device for running the engine 12 record receives the situation of output signal L11, but does not give an order to towing machine 4 and emergency braking device 9.Further, service personnel confirms the reception historic records of the output signal L11 in control device for running the engine 12 when periodic inspection, if received, then week thickly carried out the maintenance of traction machine brake 7.
When judging it is likely to when usually running the service stopping grade producing and hinder, to control device for running the engine 12 output signal output L12.When control device for running the engine 12 receives output signal L12, control power inverter 13 and make car 1 rest in nearest floor.Then, relay 14 is disconnected, cut off and the electric power of motor 6 is supplied, interrupt the generation of motor torque, and, make traction machine brake 7 or emergency braking device 9 action, make elevator under passenger.Further, require service personnel to go to work by telephone line etc., stop the service of lift appliance.
When judging to be the emergent stopping grade needing to stop at once, to emergency braking device 9 output signal output L13.Emergency braking device 9 is when power supply is cut off, and holds the brake equipment of the fail safe type that main rope 3 pairs of cars 1 are braked, and cuts off supplying the electric power of emergency braking device 9 according to output signal L3.
According to the state monitoring method of above-mentioned lift appliance, traction machine brake 7 is started the speedup amount of the driving rope sheave 5 that action rises as supervision project, and compare with threshold speed, thus compared with the situation of speed by the position of car 1 hung as elastomeric main rope 3 with supervision, be not easy the impact vibrated.Further, can not only monitor when car 1 stops, also can monitoring when car 1 is advanced.
In addition, in embodiment 2, threshold speed is set as three phases, but stage quantity is not limited to three.
And, in embodiment 2, signal S1 is the brake switch output signal of traction machine brake 7, as long as but current variation and variation in voltage etc. when making traction machine brake 7 action can judge the signal of the action/non-action of traction machine brake 7 then also can utilize other signal.Such as, when standby current changes, when carrying out braking maneuver, cut-out is to the energising of restraining coil, and thus the electric current of drg slowly declines, but after brake shoe actual beginning action, electric current temporarily increases due to speed electromotive force.Therefore, by catching curent change, braking maneuver can be confirmed.Monitor that the situation of variation in voltage is also identical.
Embodiment 3
Below, Fig. 9 is the constructional drawing of the lift appliance representing embodiments of the present invention 3.In the drawings, the top in hoistway is provided with upper position display panel (upper marker) 56.Upper position display panel 56 is fixed on the level position of most top layer usually.Bottom in hoistway is provided with lower position display panel (bottom indicia) 57.Lower position display panel 57 is fixed on the level position of the bottom usually.
Position transduser 55 is installed in car 1.Position transduser 55, by detection position display panel 56,57, detects the situation that car 1 is positioned at the level position of most top layer or the bottom.Between test zone, detecting unit is made up of position transduser 55, upper position display panel 56 and lower position display panel 57, detects the situation of car 1 middle movement between the test zone set in hoistway in advance.
In addition, position transduser 55 and position display plate 56,57 are level position (door region) in order to detect each floor and arrange in conventional lift device, do not need to reset.
The output signal of position transduser 55 is imported into control device for running the engine 12.Control device for running the engine 12 confirms the load condition in car call and car 1 every the fixed cycle.Car call is not had and in car 1 when nobody in confirmation, control device for running the engine 12 car 1 is moved to position that position transduser 55 identifies lower position display panel 57, outgoing inspection mode signal C1, and, operation mode is switched to checking mode from normal mode.
When checking mode, control device for running the engine 12 car 1 is temporarily moved to position that position transduser 55 identifies upper position display panel 56, then car 1 is moved to position that position transduser 55 identifies lower position display panel 57.Like this, after advancing when between the test zone preset is terminated, control device for running the engine 12 makes car 1 stop, and, checking mode signal C1 is stopped.That is, checking mode signal C1 is OFF when usual, and when being in checking mode, during car 1 is travelled to and fro between lower position display panel 57 to upper position display panel 56, checking mode signal C1 is ON.
Checking mode signal C1 from control device for running the engine 12 is imported into state monitoring apparatus 50.State monitoring apparatus 50, according to the output signal of checking mode signal C1 and motor encoder 11, monitors that tractive force declines.Other structure is identical with embodiment 1.
Figure 10 is the block diagram of the structure of the state monitoring apparatus 50 representing Fig. 9.State monitoring apparatus 50 during acceptace inspection mode signal C1, the output signal of monitoring motor coder 11.The output of motor encoder 11 is converted into position signal D1 by position transducer 51, to move and the position deviation again turning back to lower position display panel 57 is accumulated from lower position display panel 57 car 1.
The position signal D11 of the lower position display panel 57 after checking mode just starts by detection unit 54, just terminate with checking mode after the position signal D12 of lower position display panel 57 compare, be judged to be exception when its difference exceedes predetermined threshold value.Further, detection unit 54, according to the grade of exception, exports signal L21, L22, the L23 for tackling error state.The function of detection unit 54 such as can utilize micro computer or analog logic circuit realiration.
Figure 11 is the diagram of circuit of the action of the detection unit 54 representing Figure 10.If are ON from the checking mode signal C1 of control device for running the engine 12, then detection unit 54 stores the position signal D11 (step 21, step 22) of this state.Then, the round running of the car 1 in checking mode terminates, if are OFF from the checking mode signal C1 of control device for running the engine 12, then detection unit 54 stores the position signal D12 (step 23, step 24) of this state.
The judgement of checking mode is undertaken by following three steps.Namely, the differential position (Δ D1=|D11-D12|) of the position signal D12 of the driving rope sheave from motor encoder 11 after the position signal D11 of the driving rope sheave from motor encoder 11 after first just being started by checking mode and checking mode just terminate, compare with the threshold value TH3 preset, if D1 is larger than threshold value TH3 for differential position Δ, then be judged to be exception, output signal output L23 (step 25).
Then, differential position Δ D1 and threshold value TH2 is compared, if differential position Δ D1 is larger than threshold value TH2, be then judged to be exception, output signal output L22 (step 26).Finally, differential position Δ D1 and threshold value TH1 is compared, if differential position Δ D1 is larger than threshold value TH1, be then judged to be exception, output signal output L21 (step 27).
When any step is not all judged to be abnormal, detection unit 54 does not return step 21 to control device for running the engine 12 output signal, and lift appliance is in usual running.
When car 1 comes and goes set lifting travel from certain starting position of advancing in the non-loaded state, turn back to again advance starting position and stop when, using consider that towing machine rotating speed likely occurs usually creep after the maxim of positional error as benchmark, threshold value TH1 is set to large to the degree can not carrying out misoperation.Further considering for TH1 prevents the surplus of misoperation from carrying out setting threshold TH2 and threshold value TH3, makes TH1<TH2<TH3.
That is, threshold value TH1, TH2, TH3 correspond to the decline grade of tractive force, TH3>TH2>TH1.Further, the departure and threshold value that drive rope sheave 5 compare by detection unit 54, are judged to be exception, according to exceeding grade output signal output L21, L22, L23 when exceeding threshold value.
When judge be to the usual operation of lift appliance do not hinder through observation grade, to control device for running the engine 12 output signal output L21.Control device for running the engine 12 record receives the situation of output signal L21, but does not give an order to towing machine 4 and emergency braking device 9.Further, service personnel confirms the reception historic records of the output signal L21 in control device for running the engine 12 when periodic inspection, if received, then thickly carries out the maintenance of main rope 3 and driving rope sheave 5 week.
When judging it is likely to when usually running the service stopping grade producing and hinder, to control device for running the engine 12 output signal output L22.When control device for running the engine 12 receives output signal L22, require service personnel to go to work by telephone line etc., stop the service of lift appliance.
When judging to be the emergent stopping grade needing to stop at once, to emergency braking device 9 output signal output L23.Emergency braking device 9 is when power supply is cut off, and holds the brake equipment of the fail safe type that main rope 3 pairs of cars 1 are braked, and cuts off supplying the electric power of emergency braking device 9 according to output signal L23.
And, control device for running the engine 12 carries out the confirmation of car internal loading and car call termly, to enter checking mode, but when not entering checking mode after the regular confirmation repeatedly carrying out pre-determined number yet, rest in destination floor and elevator under making passenger, then do not carry passenger, independently force to enter checking mode with car call, and outgoing inspection mode signal C1.
According to the state monitoring method of this lift appliance, the departure of the driving rope sheave position on fixed position when travelling to and fro between according to car 1 between the test zone in hoistway, carry out abnormality juding, thus do not need the unit (the governor coder 23 in embodiment 1) of the amount of movement detecting car 1 or main rope 3.Further, owing to confirming unmanned and there is no the state of call to check, thus elevator service can not be reduced.In addition, when not checking within fixing period, force to enter checking mode, thus can check more reliably.
In addition, in embodiment 3, set the threshold to three phases, but stage quantity is not limited to three.
Further, upper position display panel 56 is configured in most top layer in embodiment 3, lower position display panel 57 is configured in the bottom, and the interval of advancing checked is not limited thereto.But, be preferably set to the distance of more than the distance that car 1 is elevated required for one deck floor.Thereby, it is possible to threshold value TH1, TH2, TH3 and lifting travel are independently set to fixed value.
In addition, in embodiment 3, the initial point between test zone is set to the detection position of lower position display panel 57, but also can using the detection position of upper position display panel 56 as initial point.
In addition, in embodiment 3, make when checking car 1 come and go, but also only can carry out the rising running between predetermined test zone, only carry out the decline running between predetermined test zone.In this case, the difference delta D=|D20-Δ D1| of difference delta D1 (=| D11-D12|) and the length D20 between the test zone measured in advance and threshold value TH1 ~ TH3 (value of TH1 ~ TH3 is the value different because of inspection method) compares by detection unit 54, judge exception thus, described difference delta D1 be motor encoder 11 after just having received checking mode signal C1 position signal D11, just stop with checking mode C1 after the difference of position signal D12 of motor encoder 11.Further, in this inspection method, the rising running of car 1 and the running both sides that decline can be carried out, also can carry out twice checking mode continuously.
Further, between test zone, detecting unit is not limited to the structure of embodiment 3, such as, also the multiple switch arranged in hoistway and the operating sheet being used for operating switch be arranged on car 1 can be combined.
In addition, the emergency braking device 9 of the type of the main rope 3 of holding has been shown in embodiment 1 ~ 3, as long as but emergency braking device 9 and towing machine 4 independently to the device that car 1 is braked, then also can be the emergency braking device of other type.
In addition, in embodiment 1 ~ 3, about driving sheave-side detecting unit to show the motor encoder 11 being produced the signal corresponding with driving the rotation of rope sheave 5 by motor 6, but be not limited thereto, such as, also can be and the roller coder etc. driving rope sheave 5 directly to contact.
In addition, also can appropriately combined enforcement embodiment 1 ~ 3.
In addition, the integral layout of lift appliance and baudrier are not limited to embodiment 1 ~ 3, and the setting place of towing machine 4, control device for running the engine 12 (control housing), state monitoring apparatus 30,40,50 etc. is not particularly limited.Further, the lift appliance of the present invention's type that can also be applicable to use multiple towing machine 4 that car 1 is elevated and the type that is provided with multiple traction machine brake 7 at a towing machine 4.
Claims (4)
1. a lift appliance, wherein, this lift appliance has:
Car;
Counterweight;
Suspension body, it hangs described car and described counterweight;
Towing machine, its traction machine brake that there is the driving rope sheave being wound with described suspension body, the motor that described driving rope sheave is rotated and the rotation of described driving rope sheave is braked;
Drive sheave-side detecting unit, it produces the signal corresponding with the rotation of described driving rope sheave;
Detecting unit between test zone, it detects the situation of described car middle movement between the test zone set in hoistway in advance;
State monitoring apparatus, its front and back that will be displaced in described car shuttle between described test zone, from the position signal departure of the described driving rope sheave of described driving sheave-side detecting unit, compare with threshold value, carry out status surveillance; And
Control device for running the engine, it controls the operation of described car,
Described control device for running the engine confirms car internal loading and car call termly, nobody in described car and enter checking mode when not having car call, and described car is advanced between described test zone.
2. lift appliance according to claim 1, wherein,
Multiple threshold values of the decline grade corresponding to tractive force are set with in described state monitoring apparatus,
When the departure of described position signal exceedes at least one threshold value, described state monitoring apparatus is judged to be exception, exports different signals according to the grade exceeded.
3. a lift appliance, wherein, this lift appliance has:
Car;
Counterweight;
Suspension body, it hangs described car and described counterweight;
Towing machine, its traction machine brake that there is the driving rope sheave being wound with described suspension body, the motor that described driving rope sheave is rotated and the rotation of described driving rope sheave is braked;
Drive sheave-side detecting unit, it produces the signal corresponding with the rotation of described driving rope sheave;
Detecting unit between test zone, it detects the situation of described car middle movement between the test zone set in hoistway in advance;
State monitoring apparatus, it is by the front and back of one way movement in described car is between described test zone, from the difference between the length between the amount of movement of the described driving rope sheave of described driving sheave-side detecting unit and described test zone, compare with threshold value, carry out status surveillance; And
Control device for running the engine, it controls the operation of described car,
Described control device for running the engine confirms car internal loading and car call termly, nobody in described car and enter checking mode when not having car call, and described car is advanced between described test zone.
4. lift appliance according to claim 3, wherein,
Multiple threshold values of the decline grade corresponding to tractive force are set with in described state monitoring apparatus,
When difference between the length between the amount of movement and described test zone of described driving rope sheave exceedes at least one threshold value, described state monitoring apparatus is judged to be exception, exports different signals according to the grade exceeded.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-222976 | 2008-09-01 | ||
| JP2008222976 | 2008-09-01 | ||
| CN200980133213.9A CN102131725B (en) | 2008-09-01 | 2009-07-09 | Elevator device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980133213.9A Division CN102131725B (en) | 2008-09-01 | 2009-07-09 | Elevator device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103466402A CN103466402A (en) | 2013-12-25 |
| CN103466402B true CN103466402B (en) | 2015-10-07 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310413980.3A Active CN103466402B (en) | 2008-09-01 | 2009-07-09 | Lift appliance |
| CN200980133213.9A Active CN102131725B (en) | 2008-09-01 | 2009-07-09 | Elevator device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980133213.9A Active CN102131725B (en) | 2008-09-01 | 2009-07-09 | Elevator device |
Country Status (4)
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| JP (2) | JP5371991B2 (en) |
| CN (2) | CN103466402B (en) |
| DE (2) | DE112009002129T5 (en) |
| WO (1) | WO2010024048A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2460753A1 (en) * | 2010-12-03 | 2012-06-06 | Inventio AG | Method for testing elevator brakes |
| CN102344063A (en) * | 2011-09-29 | 2012-02-08 | 日立电梯（中国）有限公司 | Detection system of elevator sedan absolute position |
| TWI529117B (en) * | 2012-04-26 | 2016-04-11 | 鄭坤豐 | Elevator faults real time detecting system for safety and method using the same |
| JP2014234261A (en) * | 2013-06-03 | 2014-12-15 | 株式会社日立製作所 | Load detection method and load detection device for elevator |
| JP6190631B2 (en) * | 2013-06-12 | 2017-08-30 | 株式会社日立製作所 | Elevator confinement prevention apparatus and elevator confinement prevention method |
| EP2865629B1 (en) * | 2013-10-24 | 2016-11-30 | Kone Corporation | Stall condition detection |
| JP6271948B2 (en) * | 2013-10-30 | 2018-01-31 | 株式会社日立製作所 | Elevator with pulley groove diagnostic device |
| JP6272199B2 (en) * | 2014-09-26 | 2018-01-31 | 株式会社日立製作所 | Elevator apparatus and electronic safety system inspection method for elevator apparatus |
| JP6398879B2 (en) * | 2015-06-09 | 2018-10-03 | 三菱電機ビルテクノサービス株式会社 | Elevator work status monitoring device and work status monitoring method |
| CN106892312A (en) * | 2017-05-03 | 2017-06-27 | 重庆顺心科技发展有限公司 | The Detector for elevator balance coefficient tested the speed using magnetic rollers |
| CN107555276A (en) * | 2017-10-19 | 2018-01-09 | 余志林 | A kind of elevator brake method for testing performance and device |
| CN108439119B (en) * | 2018-03-16 | 2019-08-13 | 淮南矿业(集团)有限责任公司 | A kind of control method and device of doube bridge mining elevator |
| CN110451378A (en) * | 2018-05-07 | 2019-11-15 | 广州广日电梯工业有限公司 | Lift towing power detection method and traction capacity detection device |
| JP7047972B2 (en) * | 2019-04-24 | 2022-04-05 | 三菱電機ビルテクノサービス株式会社 | Elevator slip detection system |
| EP4008664A1 (en) * | 2020-12-04 | 2022-06-08 | Otis Elevator Company | Method of preventing gravity jump at emergency stop in elevator systems |
| CN115285819A (en) * | 2022-08-16 | 2022-11-04 | 巨立电梯股份有限公司 | Protection system of elevator safety device and elevator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0616362A (en) * | 1992-07-01 | 1994-01-25 | Hitachi Building Syst Eng & Service Co Ltd | Slip quantity measuring device for main cable |
| JPH09221285A (en) * | 1996-02-16 | 1997-08-26 | Mitsubishi Electric Corp | Safety device for elevator |
| JPH11199153A (en) | 1998-01-16 | 1999-07-27 | Hitachi Building Systems Co Ltd | Diagnostic device for elevator |
| JP2002046952A (en) * | 2000-08-01 | 2002-02-12 | Mitsubishi Electric Building Techno Service Co Ltd | Brake inspection apparatus of elevator |
| WO2003004397A1 (en) * | 2001-07-04 | 2003-01-16 | Inventio Ag | Method for preventing an inadmissibly high speed of the load receiving means of an elevator |
| JP4537043B2 (en) * | 2003-12-09 | 2010-09-01 | 三菱電機株式会社 | Elevator brake control device |
| BRPI0417042B1 (en) * | 2004-04-20 | 2014-10-29 | Mitsubishi Electric Corp | EMERGENCY STOP SYSTEM FOR A LIFT |
| US7353916B2 (en) | 2004-06-02 | 2008-04-08 | Inventio Ag | Elevator supervision |
| JP4986541B2 (en) * | 2006-08-31 | 2012-07-25 | 東芝エレベータ株式会社 | Elevator control device |
| JP5079288B2 (en) * | 2006-09-13 | 2012-11-21 | 三菱電機株式会社 | Elevator equipment |
| JP2008290845A (en) * | 2007-05-24 | 2008-12-04 | Mitsubishi Electric Corp | Elevator system |
| EP2186768B1 (en) * | 2007-12-19 | 2016-04-20 | Mitsubishi Electric Corporation | Elevator device |
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2009
- 2009-07-09 DE DE112009002129T patent/DE112009002129T5/en not_active Withdrawn
- 2009-07-09 WO PCT/JP2009/062527 patent/WO2010024048A1/en active Application Filing
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- 2009-07-09 CN CN201310413980.3A patent/CN103466402B/en active Active
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- 2009-07-09 CN CN200980133213.9A patent/CN102131725B/en active Active
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| DE112009002129T5 (en) | 2011-06-22 |
| DE112009005523A5 (en) | 2014-11-27 |
| JP2013224213A (en) | 2013-10-31 |
| CN102131725A (en) | 2011-07-20 |
| CN102131725B (en) | 2013-10-23 |
| JP5371991B2 (en) | 2013-12-18 |
| JPWO2010024048A1 (en) | 2012-01-26 |
| WO2010024048A1 (en) | 2010-03-04 |
| JP5675898B2 (en) | 2015-02-25 |
| CN103466402A (en) | 2013-12-25 |
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