CN101827771A - Elevator device - Google Patents
Elevator device Download PDFInfo
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- CN101827771A CN101827771A CN200780101121A CN200780101121A CN101827771A CN 101827771 A CN101827771 A CN 101827771A CN 200780101121 A CN200780101121 A CN 200780101121A CN 200780101121 A CN200780101121 A CN 200780101121A CN 101827771 A CN101827771 A CN 101827771A
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- 239000000725 suspension Substances 0.000 claims abstract description 69
- 230000005021 gait Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000012806 monitoring device Methods 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 31
- 230000001186 cumulative effect Effects 0.000 description 14
- 238000012423 maintenance Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 238000012217 deletion Methods 0.000 description 3
- 230000037430 deletion Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000010616 electrical installation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
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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
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
- B66B5/125—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack electrical
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
In an elevator device, an emergency stop device performs emergency stop of a car in response to an operating signal. A slip monitoring device calculates a slip extent value that is a value associated with a slip extent of a suspension body with respect to a drive sheave based on signals from first and second speed detectors. Moreover, the slip monitoring device stops the car at a prescribed floor by a winding machine when the slip extent value exceeds a first threshold while operates the emergency stop device according to an operating signal when the slip extent value exceeds a second threshold.
Description
Technical field
The present invention relates to lift appliance, it detects the slippage of the relative traction sheave of suspension body, and car is stopped.
Background technology
In the fender guard of in the past elevator; instruction gait of march according to the rotative speed and the speed command generation device of the pulley of following advancing of car to rotate; detect the slippage of the relative rope sheave of drag rope; when sliding velocity surpasses setting value, make rope sheave promptly stop (for example with reference to patent documentation 1).
In addition, in the safety catch of in the past elevator, when surpassing threshold value, produce cranking signal by safety control by the detected car speed of speed sensor.After producing cranking signal, friction brake is pressed against on the guide rail, and car is braked (for example with reference to patent documentation 2).
Patent documentation 1: Japanese kokai publication sho 59-230981 communique
Patent documentation 2: Japanese Unexamined Patent Application Publication 2002-532366 communique
In aforesaid elevator protection device and safety catch in the past, can not the slower rope slippage of detection speed, might produce because of and rope sheave between the shortening or the rope fracture in accumulation friction rope life-span of causing.
Summary of the invention
The present invention proposes in order to solve above-mentioned problem, its purpose is, a kind of lift appliance is provided, can suppresses the suspension body damage that the excessive slippage because of the relative traction sheave of suspension body causes, can prevent the accumulated damage of the suspension body that the small slippage because of suspension body causes simultaneously.
Lift appliance of the present invention has: towing machine, and it has traction sheave; Suspension body, it is wound onto on the traction sheave; Car, it is being hung by suspension body, and by towing machine and lifting; Emergency braking device, it is installed on the car, according to working signal car is promptly stopped; The 1st speed detector, it produces the cooresponding signal of rotative speed with towing machine; The 2nd speed detector, it produces the cooresponding signal of gait of march with car; And slippage monitor unit, it is according to the signal from the 1st and the 2nd speed detector, the numerical value that computing is relevant with the slippage degree of the relative traction sheave of suspension body is the slippage degree value, when the slippage degree value surpasses the 1st threshold value, utilize towing machine to make car rest in predetermined floor, surpass with the time in the slippage degree value, utilize working signal to make emergency braking device work greater than cooresponding the 2nd threshold value of the slippage degree of the 1st threshold value.
Description of drawings
Fig. 1 is the constructional drawing of the lift appliance of expression embodiments of the present invention 1.
Fig. 2 is the block scheme of the main portion of expression lift appliance shown in Figure 1.
Fig. 3 is the diagram of circuit of the action of expression slippage detection unit shown in Figure 2.
Fig. 4 is the block scheme of main portion of the lift appliance of expression embodiments of the present invention 2.
Fig. 5 is the diagram of circuit of the action of expression slippage detection unit shown in Figure 4.
Fig. 6 is the block scheme of main portion of the lift appliance of expression embodiments of the present invention 3.
Fig. 7 is the diagram of circuit of the action of expression slippage detection unit shown in Figure 6.
The specific embodiment
Below, with reference to description of drawings preferred implementation of the present invention.
Fig. 1 is the constructional drawing of the lift appliance of expression embodiments of the present invention 1.In the drawings, be provided with towing machine 1 on the top of hoistway.Towing machine 1 has electrical motor 2, the traction sheave 3 that rotates by electrical motor 2 and the traction machine brake 4 that the rotation of traction sheave 3 is braked.In this example, the S. A. direct connection of traction sheave 3 and electrical motor 2, and rotate with the rotor of electrical motor 2.When turning round usually, traction machine brake 4 keeps their halted states (static maintenance) when the rotation of electrical motor 2 and traction sheave 3 stops.
Be provided with the 1st speed detector 5 on towing machine 1, it produces with the rotative speed of towing machine 1, is the cooresponding signal of rotative speed of traction sheave 3.The 1st speed detector 5 for example can use the coder (towing machine coder) on the S. A. of being located at electrical motor 2.
Near towing machine 1, be provided with deflector wheel 6.Suspension body 7 is wound onto on traction sheave 3 and the deflector wheel 6.Suspension body 7 comprises many main ropes.And, the band that main rope for example can use the rounded rope in cross section or have flat cross section.
In the bottom of car 8 emergency braking device 11 is installed, it engages with car guide rail 10, and car 8 is promptly stopped.Emergency braking device 11 has and promptly stops drive division 11a, and it is used for making emergency braking device 11 work according to the electrical installation signal.Promptly stop drive division 11a and for example can use electromagnetic actuators.
Be provided with governor 12 on the top of hoistway.Governor 12 has governor rope sheave 13 and rope holding device 14.Speed controller rope 15 volumes hang on the governor rope sheave 13.The both ends of speed controller rope 15 are connected with emergency braking device 11 by pitman 16.The bottom volume of speed controller rope 15 hangs on the tension wheel 17 of being located at the hoistway bottom.
And, when reaching and the predefined the 2nd to overrun (the 2nd overrun＞the 1st overrun) in the gait of march of car 8, detecting this situation by governor 12, speed controller rope 15 is controlled by rope holding device 14, and the circulation of speed controller rope 15 stops.Thus, mechanically operate emergency braking device 11, utilize emergency braking device 11 that car 8 is promptly stopped by pitman 16.
On governor 12, be provided with the 2nd speed detector 18, its produce with the cooresponding signal of rotative speed of governor rope sheave 13, promptly with the cooresponding signal of the gait of march of car 8.The 2nd speed detector 18 for example can use the coder (governor coder) on the S. A. of being located at governor rope sheave 13.
Be imported into the command device 19 that promptly quits work from the signal of the 1st and the 2nd speed detector 5,18 as the slippage monitor unit.Promptly quit work command device 19 according to the signal from the 1st and the 2nd speed detector 5,18, and the numerical value that computing is relevant with the slippage degree of suspension body 7 relative traction sheaves 3 is the slippage degree value.In embodiment 1, the sliding velocity of the command device 19 computing suspension bodies 7 relative traction sheaves 3 that promptly quit work is as the slippage degree value.
And when the sliding velocity of suspension body 7 surpassed the 1st threshold speed (the 1st threshold value), the command device 19 that promptly quits work made car 8 rest in predetermined floor by towing machine 1.In addition, when the sliding velocity of suspension body 7 surpassed the 2nd threshold speed (the 2nd threshold value) greater than the 1st threshold speed, the command device 19 that promptly quits work was to promptly stopping drive division 11a output services signal.
Fig. 2 is the block scheme of the main portion of expression lift appliance shown in Figure 1.The command device 19 that promptly quits work has sliding velocity operational part 20 and slippage detection unit 21.Sliding velocity operational part 20 is according to the signal from the 1st and the 2nd speed detector 5,18, the sliding velocity of computing suspension body 7 relative traction sheaves 3.Specifically, the detection speed of the 1st speed detector 5 is being made as V1, when the detection speed of the 2nd speed detector 18 is made as V2, utilizing δ V=|V1-V2| to obtain sliding velocity δ V.
The information of the operation result of sliding velocity operational part 20 and relevant elevator working condition is transfused to slippage detection unit 21.The information of relevant elevator working condition comprises the information that whether produced washout, is the information whether traction machine brake 4 is carrying out the emergency braking action.Slippage detection unit 21 will be compared by sliding velocity and the 1st and the 2nd threshold speed that sliding velocity operational part 20 is obtained, according to comparative result and elevator working condition, to various safety device operate portions 22 output commands.
Wherein, the command device 19 that promptly quits work for example has microcomputer.The functional utilization microcomputer of sliding velocity operational part 20 and slippage detection unit 21 is realized.And, in the storage part of microcomputer, store the functional programs that is used to realize sliding velocity operational part 20 and slippage detection unit 21.
Fig. 3 is the diagram of circuit of the action of expression slippage detection unit 21 shown in Figure 2.Slippage detection unit 21 is at first judged and is had or not washout (step S1).Under the situation that does not produce washout, judge whether sliding velocity surpasses the 1st threshold speed Va (step S2).If sliding velocity is below the 1st threshold speed Va, then continue running usually.
Surpass under the situation of the 1st threshold speed Va in sliding velocity, the cumulative number C1+1 that surpasses the 1st threshold speed Va is counted (step S3), produce designated floor and stop instruction (step S4).After producing designated floor stop instruction, car 8 moves to predetermined floor and rests against this.The floor that car 8 is stopped for example is predefined floor or nearest floors such as entrance hall floor.
After the output designated floor was stopped instruction, slippage detection unit 21 judged whether sliding velocity surpasses the 2nd threshold speed Vb (step S5).Surpass under the situation of the 2nd threshold speed Vb in sliding velocity, produce the urgent halt instruction of towing machine and the instruction (working signal) that promptly quits work, so that suppress the damage (step S6) of suspension body 7.After producing the urgent halt instruction of towing machine, the energising of electrical motor 2 is cut off, utilize the rotation of 4 pairs of traction sheaves 3 of traction machine brake to brake.And, after producing the instruction that promptly quits work, emergency braking device 11 is carried out braking maneuver by promptly stopping drive division 11a.
On the other hand, do not have under the situation of the 2nd threshold speed Vb of surpassing, judge whether cumulative number C1 surpasses predefined specified value α (step S7) in sliding velocity.Under C1 was situation below the α, after car 8 rested against designated floor, the running of car 8 reverted to common running.And, surpass under the situation of α at C1, be judged to be and might after car 8 rests against designated floor, produce the instruction (step S8) that promptly quits work in the damage of accumulating to suspension body 7, wait for that service personnel carries out Maintenance and Repair.
More than be the action when not producing washout, under the situation that produces washout, judge at first also whether sliding velocity surpasses the 1st threshold speed Va (step S9).If sliding velocity is below the 1st threshold speed Va, judge then whether sliding velocity surpasses the 2nd threshold speed Vb (step S11).
And, surpass under the situation of the 1st threshold speed Va in sliding velocity, cumulative number C1+1 is counted (step S10), judge then whether sliding velocity surpasses the 2nd threshold speed Vb (step S11).
Surpass under the situation of the 2nd threshold speed Vb in sliding velocity, produce the instruction (step S12) that promptly quits work, so that suppress the damage of suspension body 7.Do not have under the situation of the 2nd threshold speed Vb of surpassing in sliding velocity, judge whether cumulative number C1 has surpassed predefined specified value α (step S13).Under C1 was situation below the α, emergency braking device 11 kept the state of being failure to actuate, and waited for the recovery according to the urgent halted state of washout.And under C1 surpassed the situation of α, being judged to be might be in the damage of accumulating suspension body 7, thereby based on behind promptly the stopping of towing machine 1, produced the instruction (step S14) that promptly quits work, and the wait service personnel carries out Maintenance and Repair.
The command device 19 that promptly quits work is periodically implemented above-mentioned acts of determination according to the predetermined cycle.
In this lift appliance, according to from the 1st and the 2nd speed detector 5,18 signal, the sliding velocity of computing suspension body 7 relative traction sheaves 3, when sliding velocity surpasses the 1st threshold speed Va, make car 8 rest in designated floor by towing machine 1, when sliding velocity surpasses the 2nd threshold speed Vb, to promptly stopping drive division 11a output services signal, make emergency braking device 11 actions, so can suppress the damage of the suspension body 7 that the excessive slippage because of suspension body 7 relative traction sheaves 3 causes, can prevent the cumulative bad damage of the suspension body 7 that the small slippage because of suspension body 7 causes simultaneously.
And, carry out at traction machine brake 4 that sliding velocity surpasses under the situation of the 1st threshold speed Va in the process of emergency braking action, make the emergency braking action of traction machine brake 4 have precedence over designated floor and stop action, so can improve reliability.
In addition, when the number of times C1 that surpasses the 1st threshold speed Va in sliding velocity surpasses predefined specified value α, make car 8 rest in predetermined floor, make emergency braking device 11 actions then, so can detect the accumulated damage that results from small slippage of suspension body 7 as early as possible, can prevent that the service of lift appliance from descending.
In addition, the number of times C1 that sliding velocity surpasses the 1st threshold speed Va is the numerical value of expression cumulative bad slippage, for example can be the aggregate-value of sliding velocity δ V.During this situation, for example when the aggregate-value of the sliding velocity δ V that surpasses the 1st threshold speed Va surpasses predefined specified value, make car 8 rest in predetermined floor, make emergency braking device 11 actions then.
Below, Fig. 4 is the block scheme of main portion of the lift appliance of expression embodiments of the present invention 2.In embodiment 2, the skidding distance of the command device 19 computing suspension bodies 7 relative traction sheaves 3 that promptly quit work is as the slippage degree value.And when the skidding distance of suspension body 7 surpassed the 1st distance threshold (the 1st threshold value), the command device 19 that promptly quits work made car 8 rest in predetermined floor by towing machine 1.In addition, when the skidding distance of suspension body 7 surpassed the 2nd distance threshold (the 2nd threshold value) greater than the 1st distance threshold, the command device 19 that promptly quits work was to promptly stopping drive division 11a output services signal.
In addition, the command device 19 that promptly quits work has skidding distance operational part 23 and slippage detection unit 21.Skidding distance operational part 23 is according to the signal from the 1st and the 2nd speed detector 5,18, the skidding distance of computing suspension body 7 relative traction sheaves 3.
Specifically, the detection speed of the 1st speed detector 5 is made as V1, the detection speed of the 2nd speed detector 18 be made as V2, when the time of the certain distance of advancing is made as Δ t, utilize δ X=∫ | V1-V2|dt or δ X=∫ | V1-V2| Δ t, obtain skidding distance δ X.
And skidding distance operational part 23 makes skidding distance δ X revert to initial value whenever car 8 startings the time.At this, skidding distance operational part 23 carries out the reseting of skidding distance δ X of output before car 8 is about to begin to advance from common halted state.Thus, prevent to be attended by the misoperation of deviation accumulation.
Wherein, the command device 19 that promptly quits work for example has microcomputer.The functional utilization microcomputer of skidding distance operational part 23 and slippage detection unit 21 is realized.And, in the storage part of microcomputer, store the functional programs that is used to realize skidding distance operational part 23 and slippage detection unit 21.Other structures are identical with embodiment 1.
Fig. 5 is the diagram of circuit of the action of expression slippage detection unit 21 shown in Figure 4.Slippage detection unit 21 is at first judged and is had or not washout (step S21).Under the situation that does not produce washout, judge whether skidding distance surpasses the 1st distance threshold Xa (step S22).If skidding distance is below the 1st distance threshold Xa, then continue running usually.
Surpass under the situation of the 1st distance threshold Xa at skidding distance, the cumulative number C2+1 that surpasses the 1st distance threshold Xa is counted (step S23), produce designated floor and stop instruction (step S24).After producing designated floor stop instruction, car 8 moves to predetermined floor and rests against this.The floor that car 8 is stopped for example is predefined floor or nearest floors such as entrance hall floor.
After the output designated floor was stopped instruction, slippage detection unit 21 judged whether skidding distance surpasses the 2nd distance threshold Xb (step S25).Surpass under the situation of the 2nd distance threshold Xb at skidding distance, produce the urgent halt instruction of towing machine and the instruction (working signal) that promptly quits work, so that suppress the damage (step S26) of suspension body 7.After producing the urgent halt instruction of towing machine, the energising of electrical motor 2 is cut off, utilize the rotation of 4 pairs of traction sheaves 3 of traction machine brake to brake.And, after producing the instruction that promptly quits work, emergency braking device 11 is carried out braking maneuver by promptly stopping drive division 11a.
On the other hand, do not have under the situation of the 2nd distance threshold Xb of surpassing, judge whether cumulative number C2 surpasses predefined specified value β (step S27) at skidding distance.Under C2 was situation below the β, after car 8 rested against designated floor, the running of car 8 reverted to common running.And, surpass under the situation of β at C2, be judged to be the damage accumulation that might cause suspension body 7, after car 8 rests against designated floor, produce the instruction (step S28) that promptly quits work, wait for that service personnel carries out Maintenance and Repair.
More than be the action when not producing washout, but under the situation that has produced washout, judge at first also whether skidding distance surpasses the 1st distance threshold Xa (step S29).If skidding distance is below the 1st distance threshold Xa, judge then whether skidding distance surpasses the 2nd distance threshold Xb (step S31).
And, surpass under the situation of the 1st distance threshold Xa at skidding distance, cumulative number C2+1 is counted (step S30), judge then whether skidding distance surpasses the 2nd distance threshold Xb (step S31).
Surpass under the situation of the 2nd distance threshold Xb at skidding distance, produce the instruction (step S32) that promptly quits work, so that suppress the damage of suspension body 7.Do not have under the situation of the 2nd distance threshold Xb of surpassing at skidding distance, judge whether cumulative number C2 surpasses predefined specified value β (step S33).Under C2 was situation below the β, emergency braking device 11 kept the state of being failure to actuate, and waited for the recovery according to the urgent halted state of washout.And, surpass under the situation of β at C2, be judged to be the damage accumulation that might cause suspension body 7, after towing machine 1 promptly stops, producing the instruction (step S34) that promptly quits work, wait for that service personnel carries out Maintenance and Repair.
The command device 19 that promptly quits work is periodically implemented above-mentioned acts of determination according to the predetermined cycle.
In this lift appliance, according to from the 1st and the 2nd speed detector 5,18 signal, the skidding distance of computing suspension body 7 relative traction sheaves 3, when skidding distance surpasses the 1st distance threshold Xa, make car 8 rest in designated floor by towing machine 1, when skidding distance surpasses the 2nd distance threshold Xb, to promptly stopping drive division 11a output services signal, make emergency braking device 11 actions, so can suppress the damage of the suspension body 7 that the excessive slippage because of suspension body 7 relative traction sheaves 3 causes, can prevent the accumulated damage of the suspension body 7 that the small slippage because of suspension body 7 causes simultaneously.
And, carry out surpassing under the situation of the 1st distance threshold Xa at skidding distance in the process of emergency braking action at traction machine brake 4, make the emergency braking action of traction machine brake 4 have precedence over designated floor stop action, so can improve reliability.
In addition, when the number of times C1 that surpasses the 1st distance threshold Xa at skidding distance surpasses predefined specified value β, make car 8 rest in predetermined floor, make emergency braking device 11 actions then, so can detect the accumulated damage that results from small slippage of suspension body 7 as early as possible, can prevent that the service of lift appliance from descending.
In addition, the number of times C1 that skidding distance surpasses the 1st distance threshold Xa is the numerical value of expression accumulation slippage amount, for example can be the aggregate-value of skidding distance δ X.During this situation, for example when the aggregate-value of the skidding distance δ X that surpasses the 1st distance threshold Xa surpasses predefined specified value, make car 8 rest in predetermined floor, make emergency braking device 11 actions then.
Below, Fig. 6 is the block scheme of main portion of the lift appliance of expression embodiments of the present invention 3.In embodiment 3, the skidding distance of the command device 19 computing suspension bodies 7 relative traction sheaves 3 that promptly quit work and sliding velocity are as the slippage degree value.And when the skidding distance of suspension body 7 surpassed distance threshold (the 1st threshold value), the command device 19 that promptly quits work made car 8 rest in predetermined floor by towing machine 1.In addition, when the sliding velocity of suspension body 7 outpaced threshold value (the 2nd threshold value), the command device 19 that promptly quits work was to promptly stopping drive division 11a output services signal.
At this, threshold speed is configured to corresponding with the slippage degree greater than distance threshold.That is, threshold speed is set to the numerical value that obtains divided by the unit time (specified time) greater than distance threshold.
In addition, the command device 19 that promptly quits work has sliding velocity operational part 20, skidding distance operational part 23 and slippage detection unit 21.Sliding velocity operational part 20 is identical with embodiment 1, the sliding velocity of computing suspension body 7.Skidding distance operational part 23 is identical with embodiment 2, the skidding distance of computing suspension body 7.
At this, the command device 19 that promptly quits work for example has microcomputer.The functional utilization microcomputer of sliding velocity operational part 20, skidding distance operational part 23 and slippage detection unit 21 is realized.And, in the storage part of microcomputer, store the functional programs that is used to realize sliding velocity operational part 20, skidding distance operational part 23 and slippage detection unit 21.Other structures are identical with embodiment 1.
Fig. 7 is the diagram of circuit of the action of expression slippage detection unit 21 shown in Figure 6.Slippage detection unit 21 is at first judged and is had or not washout (step S41).Under the situation that does not produce washout, judge whether skidding distance surpasses distance threshold Xc (step S42).If skidding distance is below the distance threshold Xc, then continue running usually.
Surpass under the situation of distance threshold Xc at skidding distance, the cumulative number C3+1 that surpasses distance threshold Xc is counted (step S43), produce designated floor and stop instruction (step S44).After producing designated floor stop instruction, car 8 moves to predetermined floor and rests against this.The floor that car 8 is stopped for example is predefined floor or nearest floors such as entrance hall floor.
After the output designated floor was stopped instruction, slippage detection unit 21 was judged the sliding velocities threshold value Vc (step S45) that whether outpaces.Under sliding velocity outpaces the situation of threshold value Vc, produce the urgent halt instruction of towing machine and the instruction (working signal) that promptly quits work, so that the damage (step S46) of inhibition suspension body 7.After producing the urgent halt instruction of towing machine, the energising of electrical motor 2 is cut off, utilize the rotation of 4 pairs of traction sheaves 3 of traction machine brake to brake.And, after producing the instruction that promptly quits work, emergency braking device 11 is carried out braking maneuver by promptly stopping drive division 11a.
On the other hand, under sliding velocity does not outpace the situation of threshold value Vc, judge whether cumulative number C3 surpasses predefined specified value γ (step S47).Under C3 was situation below the γ, after car 8 rested against designated floor, the running of car 8 reverted to common running.And, surpass under the situation of γ at C3, be judged to be the damage that might accumulate suspension body 7, after car 8 rests against designated floor, produce the instruction (step S48) that promptly quits work, wait for that service personnel carries out Maintenance and Repair.
More than be the action when not producing washout, under the situation that produces washout, judge at first also whether skidding distance surpasses distance threshold Xc (step S49).If skidding distance is below the distance threshold Xc, then judge the sliding velocity threshold value Vc (step S41) that whether outpaces.
And, under skidding distance surpasses the situation of distance threshold Xc, cumulative number C3+1 is counted (step S50), judge the sliding velocity threshold value Vc (step S51) that whether outpaces then.
Under sliding velocity outpaces the situation of threshold value Vc, produce the instruction that promptly quits work, so that the damage (step S52) of inhibition suspension body 7.Under sliding velocity does not outpace the situation of threshold value Vc, judge whether cumulative number C3 surpasses predefined specified value γ (step S53).Under C3 was situation below the γ, emergency braking device 11 kept the state of being failure to actuate, and waited for the recovery according to the urgent halted state of washout.And, under C3 surpasses the situation of γ, be judged to be the damage that might accumulate suspension body 7, based on behind promptly the stopping of towing machine 1, produce the instruction (step S54) that promptly quits work, the wait service personnel carries out Maintenance and Repair.
The command device 19 that promptly quits work is periodically implemented above-mentioned acts of determination according to the predetermined cycle.
In this lift appliance, according to from the 1st and the 2nd speed detector 5,18 signal, the skidding distance and the sliding velocity of computing suspension body 7 relative traction sheaves 3, when skidding distance surpasses distance threshold Xc, make car 8 rest in designated floor by towing machine 1, when sliding velocity outpaces threshold value Vc, to promptly stopping drive division 11a output services signal, make emergency braking device 11 actions, so can suppress the damage of the suspension body 7 that the excessive slippage because of suspension body 7 relative traction sheaves 3 causes, can prevent the accumulated damage of the suspension body 7 that the small slippage because of suspension body 7 causes simultaneously.
And, carry out surpassing under the situation of distance threshold Xc at skidding distance in the process of emergency braking action at traction machine brake 4, make the emergency braking action of traction machine brake 4 have precedence over designated floor stop action, so can improve reliability.
In addition, when the number of times C3 that surpasses distance threshold Xc at skidding distance surpasses predefined specified value γ, make car 8 rest in predetermined floor, make emergency braking device 11 actions then, so can detect the accumulated damage that results from small slippage of suspension body 7 as early as possible, can prevent that the service of lift appliance from descending.
In addition, figure 1 illustrates baudrier is 1: 1 lift appliance, but also can be other baudrier.
In addition, working signal is not limited to electric signal, for example also can be optical signal etc.
In addition, the 2nd speed detector is not limited to the governor coder, for example also can use direct detection car gait of march sensor or detect the sensor etc. of the moving velocity of suspension body.
Claims (according to the modification of the 19th of treaty)
1. (revise afterwards) a kind of lift appliance, it has:
Towing machine, it has traction sheave;
Suspension body, it is wound onto on the described traction sheave;
Car, it is being hung by suspension body, and by described towing machine and lifting;
Emergency braking device, it is installed on the described car, according to working signal described car is promptly stopped;
The 1st speed detector, it produces the cooresponding signal of rotative speed with described towing machine;
The 2nd speed detector, it produces the cooresponding signal of gait of march with described car; And
The slippage monitor unit, it is according to from the described the 1st and the signal of the 2nd speed detector, the value that computing is relevant with respect to the slippage degree of described traction sheave with described suspension body is the slippage degree value, when described slippage degree value surpasses the 1st threshold value, utilize described towing machine to make described car rest in predetermined floor, surpass with the time, utilize described working signal greater than cooresponding the 2nd threshold value of the slippage degree of described the 1st threshold value in described slippage degree value, make described emergency braking device work
The described suspension body of described slippage monitor unit computing with respect to the sliding velocity of described traction sheave and skidding distance as described slippage degree value, with described skidding distance with compare as the distance threshold of described the 1st threshold value, described sliding velocity and threshold speed as described the 2nd threshold value are compared.
2. (deletion)
3. (deletion)
4. (deletion)
5. (revise afterwards) lift appliance according to claim 1, wherein, described slippage monitor unit makes described skidding distance revert to initial value when described car starts.
6. lift appliance according to claim 1, wherein,
Described towing machine is provided with the traction machine brake that the rotation of described traction sheave is braked,
Carry out at described traction machine brake that the slippage degree value surpasses under the situation of described the 1st threshold value described in the process of emergency braking action, make the emergency braking action of being undertaken by described traction machine brake have precedence over the action that makes described car rest in predetermined floor.
7. lift appliance according to claim 1, wherein, when the number of times that surpasses described the 1st threshold value in described slippage degree value surpassed predefined specified value, described slippage monitor unit made described car rest in predetermined floor, makes described emergency braking device work then.
8. lift appliance according to claim 1, wherein, when the aggregate-value of the described slippage degree value that surpasses described the 1st threshold value surpassed predefined specified value, described slippage monitor unit made described car rest in predetermined floor, makes described emergency braking device work then.
Claims (8)
1. lift appliance, it has:
Towing machine, it has traction sheave;
Suspension body, it is wound onto on the described traction sheave;
Car, it is being hung by suspension body, and by described towing machine and lifting;
Emergency braking device, it is installed on the described car, according to working signal described car is promptly stopped;
The 1st speed detector, it produces the cooresponding signal of rotative speed with described towing machine;
The 2nd speed detector, it produces the cooresponding signal of gait of march with described car; And
The slippage monitor unit, it is according to from the described the 1st and the signal of the 2nd speed detector, the value that computing is relevant with respect to the slippage degree of described traction sheave with described suspension body is the slippage degree value, when described slippage degree value surpasses the 1st threshold value, utilize described towing machine to make described car rest in predetermined floor, surpass with the time in described slippage degree value, utilize described working signal, make described emergency braking device work greater than cooresponding the 2nd threshold value of the slippage degree of described the 1st threshold value.
2. lift appliance according to claim 1, wherein, the described suspension body of described slippage monitor unit computing with respect to the sliding velocity of described traction sheave as described slippage degree value, with described sliding velocity with compare as the 1st threshold speed of described the 1st threshold value with as the 2nd threshold speed of described the 2nd threshold value.
3. lift appliance according to claim 1, wherein, the described suspension body of described slippage monitor unit computing with respect to the skidding distance of described traction sheave as described slippage degree value, with described skidding distance with compare as the 1st distance threshold of described the 1st threshold value with as the 2nd distance threshold of described the 2nd threshold value.
4. lift appliance according to claim 1, wherein, the described suspension body of described slippage monitor unit computing with respect to the sliding velocity of described traction sheave and skidding distance as described slippage degree value, with described skidding distance with compare as the distance threshold of described the 1st threshold value, described sliding velocity and threshold speed as described the 2nd threshold value are compared.
5. according to claim 3 or 4 described lift appliances, wherein, described slippage monitor unit makes described skidding distance revert to initial value when described car starts.
6. lift appliance according to claim 1, wherein,
Described towing machine is provided with the traction machine brake that the rotation of described traction sheave is braked,
Carry out at described traction machine brake that the slippage degree value surpasses under the situation of described the 1st threshold value described in the process of emergency braking action, make the emergency braking action of being undertaken by described traction machine brake have precedence over the action that makes described car rest in predetermined floor.
7. lift appliance according to claim 1, wherein, when the number of times that surpasses described the 1st threshold value in described slippage degree value surpassed predefined specified value, described slippage monitor unit made described car rest in predetermined floor, makes described emergency braking device work then.
8. lift appliance according to claim 1, wherein, when the aggregate-value of the described slippage degree value that surpasses described the 1st threshold value surpassed predefined specified value, described slippage monitor unit made described car rest in predetermined floor, makes described emergency braking device work then.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2007/074410 WO2009078100A1 (en) | 2007-12-19 | 2007-12-19 | Elevator device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101827771A true CN101827771A (en) | 2010-09-08 |
| CN101827771B CN101827771B (en) | 2013-04-17 |
Family
ID=40795226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007801011213A Expired - Fee Related CN101827771B (en) | 2007-12-19 | 2007-12-19 | Elevator device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2186768B1 (en) |
| JP (1) | JP5164995B2 (en) |
| KR (1) | KR101114062B1 (en) |
| CN (1) | CN101827771B (en) |
| WO (1) | WO2009078100A1 (en) |
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| CN101979299A (en) * | 2010-10-29 | 2011-02-23 | 江南嘉捷电梯股份有限公司 | Elevator overspeed governor |
| CN102774714A (en) * | 2011-05-11 | 2012-11-14 | 株式会社日立制作所 | Elevator device |
| CN103278325A (en) * | 2013-06-13 | 2013-09-04 | 金石机器人常州有限公司 | Vertical movement component falling monitoring system and method thereof |
| CN104030137A (en) * | 2013-03-04 | 2014-09-10 | 通力股份公司 | Traction Sheave Elevator |
| CN105793183A (en) * | 2013-12-05 | 2016-07-20 | 三菱电机株式会社 | Elevator device and control method therefor |
| CN109399414A (en) * | 2018-10-23 | 2019-03-01 | 永大电梯设备（中国）有限公司 | A kind of method of car position correction |
| CN112441493A (en) * | 2020-11-20 | 2021-03-05 | 中国十七冶集团有限公司 | Machine room-free elevator with high safety performance for building and use method |
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| CN113979260A (en) * | 2021-10-27 | 2022-01-28 | 日立楼宇技术（广州）有限公司 | Elevator overspeed protection method, device, equipment and storage medium |
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- 2007-12-19 WO PCT/JP2007/074410 patent/WO2009078100A1/en active Application Filing
- 2007-12-19 EP EP07850880.1A patent/EP2186768B1/en not_active Not-in-force
- 2007-12-19 JP JP2009546114A patent/JP5164995B2/en not_active Expired - Fee Related
- 2007-12-19 KR KR1020107006434A patent/KR101114062B1/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979299A (en) * | 2010-10-29 | 2011-02-23 | 江南嘉捷电梯股份有限公司 | Elevator overspeed governor |
| CN102774714A (en) * | 2011-05-11 | 2012-11-14 | 株式会社日立制作所 | Elevator device |
| CN102774714B (en) * | 2011-05-11 | 2014-11-05 | 株式会社日立制作所 | Elevator device |
| CN104030137A (en) * | 2013-03-04 | 2014-09-10 | 通力股份公司 | Traction Sheave Elevator |
| CN103278325A (en) * | 2013-06-13 | 2013-09-04 | 金石机器人常州有限公司 | Vertical movement component falling monitoring system and method thereof |
| CN105793183B (en) * | 2013-12-05 | 2018-11-02 | 三菱电机株式会社 | Lift appliance and its control method |
| CN105793183A (en) * | 2013-12-05 | 2016-07-20 | 三菱电机株式会社 | Elevator device and control method therefor |
| CN112840141A (en) * | 2018-10-19 | 2021-05-25 | 三菱电机株式会社 | Deterioration prediction system of elevator braking device |
| CN109399414A (en) * | 2018-10-23 | 2019-03-01 | 永大电梯设备（中国）有限公司 | A kind of method of car position correction |
| CN112441493A (en) * | 2020-11-20 | 2021-03-05 | 中国十七冶集团有限公司 | Machine room-free elevator with high safety performance for building and use method |
| CN113979260A (en) * | 2021-10-27 | 2022-01-28 | 日立楼宇技术（广州）有限公司 | Elevator overspeed protection method, device, equipment and storage medium |
| CN113979260B (en) * | 2021-10-27 | 2023-06-02 | 日立楼宇技术（广州）有限公司 | Elevator overspeed protection method, device, equipment and storage medium |
| CN115028039A (en) * | 2022-06-15 | 2022-09-09 | 永大电梯设备（中国）有限公司 | A kind of detection method of elevator traction device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2186768B1 (en) | 2016-04-20 |
| EP2186768A1 (en) | 2010-05-19 |
| KR101114062B1 (en) | 2012-02-22 |
| WO2009078100A1 (en) | 2009-06-25 |
| EP2186768A4 (en) | 2014-01-01 |
| KR20100061696A (en) | 2010-06-08 |
| CN101827771B (en) | 2013-04-17 |
| JPWO2009078100A1 (en) | 2011-04-28 |
| JP5164995B2 (en) | 2013-03-21 |
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