CN102826423A - Elevator safe operation system and safe operation method - Google Patents
Elevator safe operation system and safe operation method Download PDFInfo
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- CN102826423A CN102826423A CN2012101908946A CN201210190894A CN102826423A CN 102826423 A CN102826423 A CN 102826423A CN 2012101908946 A CN2012101908946 A CN 2012101908946A CN 201210190894 A CN201210190894 A CN 201210190894A CN 102826423 A CN102826423 A CN 102826423A
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- elevator
- rope sheave
- safe operation
- abrasion loss
- lift car
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention provides an elevator safe operation system and an elevator safe operation method, which enables an elevator to operate without reducing safety of the elevator even when a rope sheave is abraded. The safe operation system is provided with a measurement unit for measuring rotating speed of the rope sheave (6) of the elevator (1); a measurement unit for measuring a moving distance of an elevator car (3); a calculation unit for calculating an abrasion value of the rope sheave according to information of the units; and an operating condition limiting unit which performs limiting operation by resetting an allowed load capacity, operation speed or an acceleration/deceleration rate of the elevator to be a value lower than a specified value when an abrasion value is calculated to exceed specified value, thereby raising operation safety. Moreover, on occasions where a plurality of elevators are disposed, a cluster management and control apparatus (10) decides a priority of the elevators distributed to calls in a hall, stops the elevator and prohibits the following operations thereof when the abrasion value surpasses a hazard threshold.
Description
Technical field
The present invention relates to a kind of safe operation system and method for safe operation of elevator, especially relate to the safe operation system and the method for safe operation that also can make the elevator of elevator safety operation under a kind of situation that has taken place to wear and tear at rope sheave.
Background technology
As the background technology in present technique field, can enumerate out patent documentation 1.A kind of technology is disclosed in the communique of patent documentation 1; When it is stored rope sheave in advance and changes or the difference between the counted number of pulses of each floor of elevator when installing; And when maintenance during with the elevator actual travel instrumentation to pulse difference compare, come computing thus and notify the rope sheave abrasion loss.
In addition, as other background technology, can enumerate out patent documentation 2.A kind of elevator is disclosed in the communique of patent documentation 2; This elevator has the car speed detecting device of the car speed detecting device that is installed on the rope sheave and other different with this car speed detecting device, and judges the degree of aging of hoist cable and rope sheave according to the difference of the information that obtains from above-mentioned two speed detectors.
Technical literature formerly
Patent documentation
The patent documentation 2 open patent 2007-210720 of Japan communiques
In patent documentation 1, when rope sheave is changed or elevator storage elevator pulse count when (predetermined distance) moves between each specific floor when installing, and according to it and the difference between the pulse count when moving afterwards calculate the rope sheave abrasion loss.
In patent documentation 2, adopt two coders to measure the speed of lift car, and measure the abrasion of hoist cable and rope sheave according to the speed that records.Thus, compare, can measure more high-precision rope sheave abrasion loss with patent documentation 1.
, when specified value is above, urges with the mode that gives the alarm and to carry out cross-check sum and change at the rope sheave abrasion loss that records through said method.
, adopting under the situation of above-mentioned counter-measure, play from giving a warning management company carry out till the maintenance examination during; Elevator carries out common operation; So the abrasion of rope sheave are further aggravation during this, and, when the rope sheave that abrasion has taken place in use moves; Because the tractive force between rope sheave and the main hoist cable is lower than the tractive force under the normal circumstances, so might cause safety to descend.
Summary of the invention
For this reason, the object of the present invention is to provide a kind of safe operation system and method for safe operation of elevator, taken place also can in the scope of rope sheave abrasion, continue to make elevator to carry out safe operation under the situation of abrasion at rope sheave even if make.
-solution-
To achieve these goals; Preferred implementation of the present invention is characterised in that; To the rope sheave that has drive motor, rotate through the driving of said drive motor, be wound on the hoist cable on the said rope sheave and be suspended on the said hoist cable elevator with the lift car that goes up and down when carrying out safe operation; Calculate the abrasion loss of said rope sheave according to the rotating speed of said rope sheave; When the abrasion loss of the rope sheave that calculates reaches specified value; At least one item in load carrying ability, moving velocity and the acceleration-deceleration of said lift car limits, and for example at least one item in load carrying ability, moving velocity and the acceleration-deceleration of said lift car is reset to the value lower than predefined specified value.
In preferred implementation of the present invention, measure the actual mobile distance of lift car, and calculate the abrasion loss of rope sheave according to the comparative result of the miles of relative movement of the rotating speed of detected said rope sheave and lift car.
In addition; The characteristic of preferred implementation of the present invention also is; When the abrasion loss of said rope sheave reaches than bigger second specified value of said specified value, open elevator door after making said lift car be accommodated to nearest floor, and make said lift car stop operation after this.
Again; The characteristic of preferred implementation of the present invention also is; The group management control apparatus that has many elevators and be used for calling out to said many allocation of elevators elevator lobbies; And decide the relative importance value of said distribution according to the size of the said rope sheave abrasion loss of each elevator, and send the relative importance value of the said distribution that is determined to said group management control apparatus.
-invention effect-
According to preferred implementation of the present invention, even make the rope sheave at elevator take place also can under the situation that does not undermine safety, carry out the elevator operation under the situation of abrasion.That is to say; When abrasion had taken place rope sheave, as previously mentioned, the tractive force (friction force) between rope sheave and the main hoist cable might be lower than tractive force just often; So; Through the load carrying ability of restriction lift car,, also can make deceleration of elevator safely even the friction force between rope sheave and the main hoist cable reduces.In addition, through the restriction moving velocity, under the situation that needs promptly stop, can elevator be stopped.In addition, through the restriction acceleration-deceleration, can in the scope of the friction force after the reduction between rope sheave and the main hoist cable, obtain normal the deceleration, thereby can relax the danger that makes the further aggravation of abrasion because of skidding.
Other purposes of the present invention and characteristic are following clear and definite in addition in to the explanation of embodiment.
Description of drawings
Fig. 1 is the schematic block diagram of the related elevator safety system of an embodiment of the present invention.
Fig. 2 is the diagram of circuit that the processing to the related elevator safety system of an embodiment of the present invention describes.
Nomenclature:
1 elevator
2 hoist trunks
3 lift cars
4 main hoist cables
5 counterbalanceds weight
6 rope sheaves
7 winchs
8 winch coders
9 control setups
10 group management control apparatus
11 car moving distance measuring devices
12 rope sheaves abrasion judgment means
13 rope sheaves abrasion calculating section
14 threshold value rating uniies
15 move restriction and forbid deciding section
16 relative importance value deciding section
The specific embodiment
Followingly embodiment of the present invention is described with reference to accompanying drawing.Fig. 1 is the schematic block diagram of the related elevator safety system of an embodiment of the present invention.
Lift car 3 moves in the hoist trunk 2 of elevator 1, and lift car 3 is connected with counterbalanced weight 5 through main hoist cable 4.Lift car 3 goes in hoist trunk 2 through rope sheave 6 and winch 7, and rope sheave 6 is installed on the winch 7, and main hoist cable 4 is wound on the rope sheave 6.On winch 7, be equipped with and be used to detect the rotating speed of winch 7 and the winch coder 8 of hand of rotation.In hoist trunk 2, except winch coder 8, also be provided with the various equipment relevant with going of lift car 3, said various device is controlled by control setup 9.In addition, in a building, be provided with under the situation of many elevators 1, then be provided with group management control apparatus 10, this group management control apparatus 10 carries out these many elevators 1 are distributed to the distribution control of hall call.
In lift car 3, also be provided with car moving distance measuring device 11 and the rope sheave abrasion judgment means 12 of measuring the miles of relative movement of lift car 3 with 8 different being used to of winch coder.Rope sheave abrasion judgment means 12 has rope sheave abrasion calculating section 13, threshold value rating unit 14, operation restriction and forbids deciding section 15 and relative importance value deciding section 16.
The miles of relative movement of lift car miles of relative movement that is recorded by car moving distance measuring device 11 and the lift car 3 that recorded by winch coder 8 is sent in the rope sheave abrasion judgment means 12.In rope sheave abrasion calculating section 13, these miles of relative movement are compared, be wound with the current diameter of the rope sheave 6 of main hoist cable 4 with calculating.And, the initial diameter of the current diameter of the rope sheave that calculates 6 with the rope sheave 6 that writes down in advance compared, to calculate the abrasion loss of rope sheave 6.In threshold value rating unit 14, abrasion loss that records and threshold value are compared.Operation restriction and forbid that deciding section 15 sends indication to control setup 9 makes will allow load carrying ability, running velocity or acceleration-deceleration to reset to serve as reasons operation to limit and forbid permission load carrying ability, running velocity or the acceleration-deceleration that deciding section 15 is stipulated according to the comparative result of threshold value rating unit 14.Can enumerate out following concrete example.When the rope sheave abrasion loss that calculates reaches specified value, preferably reset the load carrying ability of lift car, for example be reset to about 70%.In addition, preferably velocity mode is reset, for example maximum speed is reset to about 70%.Again, preferably with the acceleration-deceleration in the velocity mode from just often 0.8 [m/s
2] be restricted to 0.65 [m/s
2] about.
Its result, though when the normal startup of elevator is quickened, go during, slow down when stopping or when promptly stopping, also being not easy to skid between rope sheave and the main hoist cable, thereby can improving safety.
In addition; When in threshold value rating unit 14, being judged as the rope sheave abrasion loss when having surpassed predefined dangerous values, by the operation restriction with forbid that deciding section 15 sends indication to control setup 9, so that the car 3 of this elevator 1 is accommodated to nearest stop layer (nearest floor); The indication passenger leaves elevator 1; After the passenger leaves lift car 3, close elevator door, and forbid the operation that after this lift car 3 carries out.That is to say to have the operation stop element, when the rope sheave abrasion loss reached second specified value greater than said specified value, this operation stop element was opened elevator door after making lift car be accommodated to nearest floor, and makes lift car stop operation after this.
When being provided with group management control apparatus 10; Abrasion loss and pre-set threshold with the rope sheave that records in the threshold value rating unit 14 of rope sheave abrasion judgment means 12 compare; Distribution relative importance value when determining that according to the result of this comparison elevator 1 is distributed to hall call by relative importance value deciding section 16, and the relative importance value that is determined sent to group management control apparatus 10.10 pairs of relative importance values that obtain from the rope sheave abrasion judgment means 12 of each elevator 1 of group management control apparatus compare the priority when distributing to hall call with setting.Thus, be in operation the hall call priority allocation to the less elevator 1 of rope sheave abrasion loss.At this moment, also can be arranged to perhaps allow load carrying ability that relative importance value multiply by coefficient arbitrarily, perhaps add or deduct numerical value, make thus between the priority by group management control apparatus 10 decisions and produce difference according to the running velocity of elevator 1.As stated; Having each single ladder of decision distributes the distribution relative importance value of relative importance value to determine the unit; This distributes relative importance value decision unit to each elevator; Size according to the rope sheave abrasion loss of each elevator determines the relative importance value of each elevator in minute timing, and sends the distribution relative importance value that is determined to group management control apparatus.
Through operation restriction with when forbidding that deciding section 15 has forbidden (stopping) operation after this, by rope sheave abrasion judgment means 12 with the operation of this elevator 1 (operation stops) this matters notice group management control apparatus 10 that is under an embargo.
Fig. 2 is the diagram of circuit that the processing to the related elevator safety system of an embodiment of the present invention describes.
Rope sheave abrasion judgment means 12 is obtained the moving distance data of lift car 3 through control setup 9 from winch coder 8, also obtains the miles of relative movement (step S1) of lift cars 3 simultaneously from car moving distance measuring device 11.
The miles of relative movement of the rope sheave by rope sheave abrasion judgment means 12 being worn and torn the lift car 3 of calculating section 13 acquisitions compares; Calculate the current diameter of rope sheave 6; And the initial diameter of this diameter and rope sheave 6 is compared, calculate the abrasion loss (step S2) of rope sheave 6 thus.In threshold value rating unit 14, abrasion loss that calculates and pre-set threshold are compared (step S3).The abrasion loss of representing rope sheave 6 when the comparative result of step S3 is when threshold value is above; By operation restriction with forbid that deciding section 15 sends indication to control setup 9, make the permission load carrying ability of elevator 1 and running velocity or acceleration-deceleration are changed to the predefined value of each threshold value (step S4).
In the present embodiment, operation limits and forbids that deciding section 15 is limited in 70% with the load carrying ability of lift car.Thus, the passenger's in lift car load has surpassed 70% o'clock of rated value, and the annunciator action requires elevator under a part of passenger.Its result can suppress to skid between rope sheave and the main hoist cable.In addition, running velocity is limited in 70%.And, through the change velocity mode with acceleration-deceleration from just often 0.8 [m/s
2] be restricted to 0.65 [m/s
2].Thus, can suppress to skid between rope sheave and the main hoist cable, can obtain running velocity effectively by the velocity mode regulation at run duration.In addition, owing to can not cause the abrasion of rope sheave further to aggravate, so can improve safety.In addition,, limit, also can improve safety and only at least one value in the above-mentioned project is switched to the value lower than normal value even the load carrying ability of lift car and running velocity and acceleration-deceleration are not all limited.
Then, in threshold value rating unit 14, abrasion loss and predefined dangerous values are compared (step S5), when abrasion loss when dangerous values is above; By moving restriction and forbidding that deciding section 15 decisions are out of service; And for lift car 3 is stopped, indication control setup 9 makes lift car be accommodated to nearest stop layer, notifies the passenger to leave lift car 3; And after the passenger leaves lift car 3, close elevator door, and forbid that elevator moves (step S6).In step S6, further will forbid this matters notice group management control apparatus 10 of this elevator 1 operation.
Afterwards, will wear and tear abrasion loss and the pre-set threshold that calculating section 13 sends to the rope sheave 6 of threshold value rating unit 14 from rope sheave and compare,, rope sheave 6 abrasion losss sent to relative importance value deciding section 16 (step S7) being judged as when needing the change relative importance value.When the result of step S7 representes that the needs change distributes relative importance value, will send to group management control apparatus 10 (step S8) to the predefined relative importance value of each threshold value.
Claims (8)
1. the safe operation system of an elevator; It is the rope sheave that has drive motor, rotate through the driving of said drive motor, be wound on the hoist cable on the said rope sheave and be suspended on the said hoist cable safe operation system with the elevator of the lift car that goes up and down; The safe operation system of said elevator is characterised in that
Have rope sheave tachometric survey unit, rope sheave abrasion loss arithmetic element and condition of service limiting unit,
The rotating speed of said rope sheave is measured in said rope sheave tachometric survey unit,
The rotating speed of the said rope sheave that said rope sheave abrasion loss arithmetic element basis measures calculates the abrasion loss of said rope sheave,
When the said rope sheave abrasion loss that calculates reached specified value, said condition of service limiting unit was limited in below the specified value at least one in load carrying ability, moving velocity and the acceleration-deceleration of said lift car.
2. the safe operation system of elevator as claimed in claim 1 is characterized in that,
Car moving distance measuring unit with actual miles of relative movement of measuring said lift car,
Difference between the measured value of the rotating speed of the said rope sheave that said rope sheave abrasion loss arithmetic element basis measures and the miles of relative movement of said lift car is calculated the rope sheave abrasion loss.
3. according to claim 1 or claim 2 the safe operation system of elevator is characterized in that,
When the said rope sheave abrasion loss that calculates reached specified value, said condition of service limiting unit limited through being reset to the value lower than predefined specified value with at least one in load carrying ability, moving velocity and the acceleration-deceleration of said lift car.
4. like the safe operation system of each described elevator in the claim 1 to 3, it is characterized in that,
Further be provided with the operation stop element; When said rope sheave abrasion loss reaches than bigger second specified value of said specified value; Said operation stop element is opened elevator door after making said lift car be accommodated to nearest floor, and makes said lift car stop operation after this.
5. like the safe operation system of each described elevator in the claim 1 to 4, it is characterized in that,
The group management control apparatus that the safe operation system of said elevator has many elevators and is used for calling out to said many allocation of elevators elevator lobbies,
The safe operation system of said elevator further has the distribution relative importance value decision unit of the distribution relative importance value of each single ladder of decision; Said distribution relative importance value decision unit is to each elevator; Size according to the said rope sheave abrasion loss of each elevator; Determine the relative importance value of each elevator, and send the distribution relative importance value that is determined to said group management control apparatus timing in said minute.
6. the method for safe operation of an elevator; It is the rope sheave that has drive motor, rotate through the driving of said drive motor, be wound on the hoist cable on the said rope sheave and be suspended on the said hoist cable method for safe operation with the elevator of the lift car that goes up and down; The method for safe operation of said elevator is characterised in that
Have rope sheave tachometric survey step, rope sheave abrasion loss calculation step and reset step,
In said rope sheave tachometric survey step, measure the rotating speed of said rope sheave,
The rotating speed of the said rope sheave that basis measures in said rope sheave abrasion loss calculation step calculates the abrasion loss of said rope sheave,
Reset in the step said, when the abrasion loss of the said rope sheave that calculates reaches specified value, at least one item in load carrying ability, moving velocity and the acceleration-deceleration of said lift car is reset to the value lower than predefined specified value.
7. the method for safe operation of elevator as claimed in claim 6 is characterized in that, has:
When the abrasion loss of said rope sheave reaches than bigger second specified value of said specified value, make said lift car be accommodated to the step of opening elevator door behind the nearest floor; And
Forbid that said lift car carries out the step of operation after this.
8. like the method for safe operation of claim 6 or 7 described elevators, it is characterized in that,
Have many elevators and be used under the situation of the group management control apparatus that said many allocation of elevators elevator lobbies are called out, the method for safe operation of said elevator further has step and the step that the relative importance value of the said distribution that is determined is sent to said group management control apparatus that size according to the said rope sheave abrasion loss of each elevator decides the relative importance value of said distribution.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-131930 | 2011-06-14 | ||
| JP2011131930A JP2013001474A (en) | 2011-06-14 | 2011-06-14 | Safety operation system and safety operation method of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102826423A true CN102826423A (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101908946A Pending CN102826423A (en) | 2011-06-14 | 2012-06-11 | Elevator safe operation system and safe operation method |
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| CN (1) | CN102826423A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270953A (en) * | 2014-06-16 | 2016-01-27 | 株式会社日立制作所 | Control device of elevator device, and elevator device thereof |
| CN115482217A (en) * | 2022-09-21 | 2022-12-16 | 内蒙古科电数据服务有限公司 | Electric shock prevention video detection method for transformer substation based on Gaussian mixture model separation algorithm |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6496265B2 (en) * | 2016-03-28 | 2019-04-03 | 株式会社日立製作所 | Elevator equipment |
| WO2020234928A1 (en) * | 2019-05-17 | 2020-11-26 | 三菱電機株式会社 | Elevator operation management system |
| US11718501B2 (en) * | 2020-04-06 | 2023-08-08 | Otis Elevator Company | Elevator sheave wear detection |
| JP2023163523A (en) * | 2022-04-28 | 2023-11-10 | 日立建機株式会社 | Transportation vehicle and traffic control system |
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| JPH09221284A (en) * | 1996-02-19 | 1997-08-26 | Toshiba Corp | Elevator control device |
| CN1589225A (en) * | 2002-09-11 | 2005-03-02 | 三菱电机株式会社 | Elevator control device |
| JP2006282309A (en) * | 2005-03-31 | 2006-10-19 | Mitsubishi Electric Corp | Method and device for detecting sheave abrasion quantity in elevator device, and control method and device for elevator device |
| CN101016134A (en) * | 2006-02-08 | 2007-08-15 | 株式会社日立制作所 | Elevator |
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| JPS56165671A (en) * | 1980-05-22 | 1981-12-19 | Mitsubishi Electric Corp | Controller for group of elevator |
| JPH0684233B2 (en) * | 1986-03-05 | 1994-10-26 | 株式会社日立製作所 | Elevator device and operation control method thereof |
| JPH0543156A (en) * | 1991-08-09 | 1993-02-23 | Toshiba Corp | Elevator controller |
| JP2008290845A (en) * | 2007-05-24 | 2008-12-04 | Mitsubishi Electric Corp | Elevator system |
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2011
- 2011-06-14 JP JP2011131930A patent/JP2013001474A/en active Pending
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- 2012-06-11 CN CN2012101908946A patent/CN102826423A/en active Pending
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| JPH09221284A (en) * | 1996-02-19 | 1997-08-26 | Toshiba Corp | Elevator control device |
| CN1589225A (en) * | 2002-09-11 | 2005-03-02 | 三菱电机株式会社 | Elevator control device |
| JP2006282309A (en) * | 2005-03-31 | 2006-10-19 | Mitsubishi Electric Corp | Method and device for detecting sheave abrasion quantity in elevator device, and control method and device for elevator device |
| CN101016134A (en) * | 2006-02-08 | 2007-08-15 | 株式会社日立制作所 | Elevator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270953A (en) * | 2014-06-16 | 2016-01-27 | 株式会社日立制作所 | Control device of elevator device, and elevator device thereof |
| CN115482217A (en) * | 2022-09-21 | 2022-12-16 | 内蒙古科电数据服务有限公司 | Electric shock prevention video detection method for transformer substation based on Gaussian mixture model separation algorithm |
| CN115482217B (en) * | 2022-09-21 | 2024-05-10 | 内蒙古科电数据服务有限公司 | Transformer substation electric shock prevention video detection method based on Gaussian mixture model separation algorithm |
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|---|---|
| JP2013001474A (en) | 2013-01-07 |
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Application publication date: 20121219 |