CN101891092A - elevator equipment - Google Patents
elevator equipment Download PDFInfo
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- CN101891092A CN101891092A CN2010101179951A CN201010117995A CN101891092A CN 101891092 A CN101891092 A CN 101891092A CN 2010101179951 A CN2010101179951 A CN 2010101179951A CN 201010117995 A CN201010117995 A CN 201010117995A CN 101891092 A CN101891092 A CN 101891092A
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- 238000001514 detection method Methods 0.000 claims abstract description 83
- 238000009434 installation Methods 0.000 claims 2
- 230000005856 abnormality Effects 0.000 claims 1
- 238000013459 approach Methods 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention provides a kind of lift facility,, also can detect accurately and overrun with respect to the abnormal speed of lift car even grow in the hoist trunk of elevator of distance detecting (high floor) at needs.This lift facility detects the speed of the lift car (3) in the hoist trunk (1), when the speed of detected lift car (3) has surpassed setting speed (17), lift car (3) is slowed down and stop, described lift facility is configured to have range detection means (9,11) and terminal distance detection device (10,12), range detection means detects lift car (3) whether in predefined terminal distance of starting at from the top or the bottom of hoist trunk (1), when the terminal distance detection device is in the terminal distance at lift car (3), detection from the top of hoist trunk (1) or the bottom to the distance of lift car, setting speed is according to being decided by the detected distance of terminal distance detection device.
Description
Technical field
The present invention relates to a kind of lift facility, its speed to lift car detects, when the speed of lift car has surpassed setting speed, make the drg action, lift car is slowed down and stop, the present invention is particularly useful for the situation that forcibly makes deceleration of elevator and stop at terminal floor.
Background technology
The energy disperser that is arranged in the elevator hole need have sufficient stroke, hinders for some reason etc. and when bumping with energy disperser at full speed, this lift car or counterbalanced weight is cushioned fully at lift car or counterbalanced weight even make.With regard to this energy disperser, preferably stroke can be provided with to such an extent that lack a bit, be provided with brake torque a little bit smaller.And in order to accomplish this point, need be that the abnormal speed of lift car detects accurately and overruns with respect to the setting speed that makes the drg action.
As prior art, a kind of scheme is for example disclosed in patent documentation 1, it is overrun in order to set accurately to the distance of terminal according to lift car, detects lift car continuously to the distance of terminal, and according to lift car to terminal apart from the continuous variable setting rank of overrunning.
In addition, a kind of scheme is for example disclosed in patent documentation 2, it is in order to detect the position and the speed of lift car with simple structure easily, the synchronization-moving speed controller rope of lifting with lift car is set on the governor rope sheave, and on the governor rope sheave, is provided for detecting the position of lift car and the test section of speed is a coder.
Patent documentation 1: the open patent 2004-123279 of Japan communique
Patent documentation 2: the international WO2005/102899 patent that discloses
, in the scheme of the distance of terminal, must use laser to wait and carry out optical detection at the above-mentioned lift car that detects continuously of the prior art.Therefore, when carrying out short distance detection, the detection of degree of precision can be carried out, but, the difficulty that becomes can be caused measuring because of the decay of light as the hoist trunk of elevator etc., growing under the situation of distance detecting.In addition, also must be in hoist trunk towards above Laser emission mouth or reflecting plate are set, thereby make above-mentioned Laser emission mouth and reflecting plate adhere to dirts such as dust and greasy dirt easily, and might make the test section et out of order owing to the object that from the gap of lift car and elevator lobby, falls down.
On the other hand, in the distance detection device of using governor and coder, need make governor and lift car keep synchronous speed controller rope in the whole length direction setting of hoist trunk, so the long more then easy more speed controller rope that takes place when earthquake etc. of hoist trunk is wound into situation on the equipment in the hoist trunk.In addition, also must confirm whether be subjected to damage etc. to check it to the state of speed controller rope.
Summary of the invention
The objective of the invention is to solve problems of the prior art, grow in the hoist trunk of elevator of distance detecting (high floor) at needs even make, also can carry out high-precision test, overrun thereby can detect accurately with respect to the abnormal speed of lift car.
In addition, other purpose of the present invention is to set accurately with respect to the overrunning of lift car abnormal speed, and makes it possible to shorten the stroke when forcibly making deceleration of elevator and stopping at terminal floor, and the size that reduces the elevator hole.
And, even another purpose of the present invention be when the hoist trunk of elevator is very long, also can reduce the frequency of maintenance and maintenance, and reduce maintenance and maintain required labour.
The objective of the invention is to realize any at least one purpose in the above-mentioned purpose.
To achieve these goals, the invention provides a kind of lift facility, this lift facility detects the speed of the lift car in the hoist trunk, when the speed of detected lift car has surpassed setting speed, described lift car is slowed down and stop, described lift facility is configured to have range detection means and terminal distance detection device, described range detection means detects described lift car whether in predefined terminal distance of starting at from the top or the bottom of described hoist trunk, described terminal distance detection device is in described lift car is in described terminal distance the time, detection from the top of described hoist trunk or the bottom to the distance of described lift car, described setting speed is according to being decided by the detected distance of described terminal distance detection device.
The invention effect
According to the present invention, when lift car is in the terminal distance, decide setting speed according to the distance of terminal till the lift car, therefore, even in the hoist trunk of long distance, also can detect accurately and overrun with respect to the abnormal speed of lift car.
Description of drawings
Fig. 1 is the diagram of block of the lift facility of expression an embodiment of the present invention.
Fig. 2 be expression in one embodiment elevator car position and the diagram of curves of the relation between the relation between the running velocity and elevator car position and the setting speed.
Fig. 3 is the diagram of block of other embodiments of expression the present invention.
Fig. 4 is the diagram of block of another other embodiments of expression the present invention.
Nomenclature: 1-hoist trunk; 2A, 2B-guide rail; The 3-lift car; 4-master's hoist cable; The 5-counterbalanced weight; The 6-winch; The 7-emergency braking device; The 8-speed detector; 9-top range detection means; 10-top terminals distance detection device; 11-bottom range detecting device; 12-bottom terminal distance detection device; The 13-control setup; 14-setting speed change device; The 15-abnormity judgement set; The 16-normal operating speed; 17-(emergency braking) setting speed.
The specific embodiment
Fig. 1 represents the structure of lift facility, and lift facility carries out lifting along the pair of guide rails 2A, the 2B that are arranged on hoist trunk 1 internal face.The lift car of taking for the passenger 3 is connected with counterbalanced weight 5 by main hoist cable 4, and main hoist cable 4 is wound on the driving rope sheave of winch 6, makes by winch 6 to drive the rope sheave rotation, thereby makes lift car 3 carry out lifting in hoist trunk 1.
Be provided with emergency braking device 7 in the bottom of lift car 3, this emergency braking device 7 relative with guide rail 2A, 2B to.In addition, also be respectively arranged with speed detector 8, top range detection means 9 and top terminals distance detection device 10, described speed detector 8 detects the moving direction and the speed of lift car, whether described top range detection means 9 detects lift cars 3 and is in the top terminals distance predefined, that start at from the top of hoist trunk 1, and described top terminals distance detection device 10 detects the distance of lift car 3 to the top in lift car 3 is in the top terminals scope time continuously.
In addition, also have bottom range detecting device 11 and bottom terminal apart from testing fixture 12, whether described bottom range detecting device 11 detects lift cars 3 and is in the bottom terminal distance predefined, that start at from the bottom of hoist trunk 1, and described bottom terminal distance detection device 12 detects the distance of lift car 3 to the bottom in lift car is in the bottom terminal scope time continuously.
When the speed by speed detector 8 detected lift cars 3 has surpassed predefined speed, control setup 13 output makes the not shown drg that is arranged on the winch 6 or the emergency braking instruction of emergency braking device 7 actions, lift car 3 is implemented braking, forcibly lift car 3 is braked thus and it is stopped.
In the time of in lift car 3 is in the top terminals scope of hoist trunk 1 or in the bottom terminal scope, according to by top terminals distance detection device 10 or bottom terminal distance detection device 12 detected lift cars 3 distance till the terminal of hoist trunk 1, determine setting speed in the continually varying mode by setting speed change device 14.
Lift facility confirms that by following method whether top range detection means 9 and top terminals distance detection device 10 bring into play function correctly.
(1) when top range detection means 9 detects lift car 3, to by top terminals distance detection device 10 detected distances and grasp in advance from the terminal at top to top range detection means 9 till distance compare.
(2) when bottom range detecting device 11 detects lift car 3, to by bottom terminal distance detection device 12 detected distances and grasp in advance from the terminal of bottom to bottom range detection means 11 till distance compare.
After this, when both range difference in above-mentioned two comparisons surpassed allow apart from the time, be judged as and taken place unusually, and unusual this advisory maintenance management company will take place.
15 expression control winchs 6 are so that lift car 3 moves to the abnormity judgement set that stops behind the nearest floor, top range detection means 9 detected lift car 3 but top terminals distance detection device 10 do not detect apart from the time, and on the contrary top range detection means 9 do not detect lift car 3 but top terminals distance detection device 10 detected apart from the time, make lift car 3 move to nearest floor and stop, and unusual this advisory maintenance management company will take place.In addition, also be the same for bottom range detecting device 11 and bottom terminal distance detection device 12.
As top range detection means 9 and bottom range detecting device 11, preferred use the position detector that constitutes by opto-electronic pickup and shield or optic coupler and shield or the limit switch of contact, and also can laser detector, sound wave detector or magnetic detector be set by the certain location in hoist trunk 1 and be used as detecting device.
As top terminals distance detection device 10 and bottom terminal distance detection device 12, use contactless laser detector, acoustic detector or magnetic detection device etc., perhaps use roller by will having coder by the detecting device of the contact that detects on wall that is pressed in guide rail 2A, 2B or hoist trunk 1 etc.In addition, top terminals distance detection device 10 and bottom terminal distance detection device 12 preferred double as speed detectors 8 use.
When the sensor that detects in the reflection that will utilize laser and sound wave etc. uses as distance detection device, if top terminals distance detecting 10 is arranged on the top of hoist trunk 1, bottom terminal distance detection device 12 is arranged on the bottom of lift car 3, and make test section (detection side to) towards the below, then with top terminals distance detection device 10 be arranged on the lift car 3, the situation that bottom terminal distance detection device 12 is arranged on the bottom of hoist trunk 1 is compared, and can not be vulnerable to dust and the pollution of the object that drops from top.
If when a speed detector 8, top range detection means 9, top terminals distance detection device 10, bottom range detecting device 11 and bottom terminal distance detection device 12 being set constituting triangular web respectively, then can make structure become simple, and, then can improve reliability if when a plurality of said apparatus being set forming multiplicated system respectively.In addition, by plural top range detection means 9 and bottom range detecting device 11 are set on the short transverse of hoist trunk with separating predetermined distance, can detect the moving direction of lift car 3, so speed detector 8 also can use the detecting device of the moving direction that can not detect lift car 3, so, can make structure become more simple.
In Fig. 2, transverse axis represents that from the top of hoist trunk 1 to the distance of bottom, the longitudinal axis represents that the normal operating speed 16 of elevator and setting speed are emergency braking setting speed 17.Beyond lift car 3 is in top terminals scope among the figure and during the position beyond the bottom terminal scope, emergency braking setting speed 17 is set to the specified value bigger than the command speed of lift car 3, more specifically, emergency braking setting speed 17 is set to the certain value that obtains behind the coefficient that is multiplied by regulation on the command speed of normal operating speed 16 (for example 1.3 or 1.4).
In the time of in lift car 3 is in the top terminals scope or in the bottom terminal scope, emergency braking setting speed 17 be applied on the lift car 3 deceleration/decel and from the terminal of the top of hoist trunk 1 or bottom to lift car 3 till distance be that benchmark is set according to following formula.But, regardless of the position of lift car 3, the value of emergency braking setting speed 17 all be no more than lift car 3 be in beyond the top terminals scope and the bottom terminal scope beyond the position time value.
V: setting speed
A: be applied to the deceleration/decel on the lift car 3
X: top or bottom terminal arrive the distance till the lift car 3
Top terminals scope and bottom terminal scope determine according to following formula.
X=(V
MAX)
2/ 2a+ Δ x ... (formula 2)
X: top terminals scope and bottom terminal scope
V
MAX: the maximum speed of emergency braking setting speed 17
Δ x: rich distance (on the occasion of)
Top range detection means 9 is arranged on the intersection of top terminals scope among Fig. 2 and intermediate range or starts on the interior position of affluence distance of formula 2 from this intersection.Bottom range detecting device 11 is also with identical method setting.
The emergency braking of lift facility carries out with following method according to story height.
When lift car 3 be in beyond the top terminals scope and the bottom terminal scope beyond the position time, emergency braking setting speed 17 is set to certain value, so, be in than normal operating speed 16 state faster because of abnormal running in the speed that lift car 3 occurs, and surpassed under the situation of emergency braking setting speed 17 by speed detector 8 detected speed, by the instruction of control setup 13 output emergency brakings, lift car 3 is slowed down and stop by being arranged on not shown drg on the winch 6 or emergency braking apparatus 7.Therefore, even be cut off because of main hoist cable 4 etc. make be arranged on the drg on the winch 6 braking to lift car 3 out-of-action situations under, lift car 3 is stopped under the state that can not take place to collide with the top or the bottom of hoist trunk 1.
When detecting lift car 3 near the top by top range detection means 9, top terminals distance detection device 10 is measured the distance from the terminal at top to lift car 3.At this moment, to measuring distance and grasp in advance from the terminal at top to top range detection means 9 till predetermined distance compare, both range difference surpassed allow apart from the time, unusual this advisory maintenance management company will take place in abnormity judgement set 15, and control winch 6 so that lift car 3 stops after moving to nearest floor.
When both sides' range difference was allowing in the distance, setting speed change device 14 changed emergency braking setting speed 17 according to the distance that measures.Because it is low more that emergency braking setting speed 17 is configured to from the short more then emergency braking of the distance setting speed 17 at top according to formula 1, so lift car 3 is more near then emergency braking instruction output more early of top.Therefore, even lift car 3 abnormal operating condition occurred in the top terminals scope, also can make lift car 3 stop and can not colliding by being arranged on drg on the winch 6 and emergency braking device 7 etc. with the top.In addition, also the situation with the top is identical near the situation the bottom of hoist trunk 1.
The top range detection means 9 of Fig. 3 and bottom range detecting device 11 constitute by detecting the device whether lift car 3 be in the terminal scope all the time, rather than detect the device that whether has lift car 3 to pass through by noncontinuity ground and constitute.
Top range detection means 9 and bottom range detecting device 11 are formed at lift car 3 sides and have optic coupler, at the top of hoist trunk 1 side and the bottom have length and separately the identical shield of terminal scope respectively, and use laser, electric wave or sound wave to wait and detect lift car 3, counterbalanced weight 5 or main hoist cable 4.
Top range detection means 9 is the same with bottom terminal distance detection device 12 with top terminals distance detection device 10 with bottom range detecting device 11, distance till also can being used for measuring from top terminals or bottom terminal to lift car 3, at this moment, as top range detection means 9 and bottom range detecting device 11, can use measuring distance than top terminals distance detection device 10 is short with the measuring distance of bottom terminal distance detection device 12 and precision is identical or lower distance detection device.
Top range detection means 9 and the top terminals distance detection device 10 of Fig. 4 are not arranged on the top of hoist trunk 1, and are arranged on the bottom of hoist trunk 1.Whether whether top range detection means 9 is not to be used for detecting lift car 3 to be in the top terminals scope, be in the bottom terminal scope but be used for detecting counterbalanced weight 5.Equally, top terminals distance detection device 10 is not the top terminals distance that is used for measuring from the top to the lift car till 3, but is used for measuring from the bottom to the counterbalanced weight bottom terminal distance till 5.Because lift car 3 is connected by main hoist cable 4 with counterbalanced weight 5, therefore, as long as main hoist cable 4 is not cut off, in the time of then in counterbalanced weight 5 is in the bottom terminal scope, lift car 3 necessarily is in the top terminals scope.Thus, top range detection means 9 and top terminals distance detection device 10 and bottom range detecting device 11 and bottom terminal distance detection device 12 all can be arranged on the bottom of hoist trunk 1.Therefore, can make the maintenance examination of each detecting device become more convenient, and can shorten production time.In addition, also all detecting devices all can be arranged on the top of hoist trunk 1, but this moment, be cut off and the means of distance till measuring when causing lift car 3 to drop from lift car 3 to the bottom losing, therefore the cut-out that detects main hoist cable 4 and the device of output emergency brake signal preferably are set at main hoist cable 4.
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009120459A JP5600399B2 (en) | 2009-05-19 | 2009-05-19 | Elevator equipment |
| JP2009-120459 | 2009-05-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101891092A true CN101891092A (en) | 2010-11-24 |
| CN101891092B CN101891092B (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010117995.1A Active CN101891092B (en) | 2009-05-19 | 2010-02-10 | Elevator device |
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| JP (1) | JP5600399B2 (en) |
| CN (1) | CN101891092B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276474A (en) * | 2013-07-05 | 2015-01-14 | 株式会社日立制作所 | Elevator safety system |
| CN105612118A (en) * | 2013-09-09 | 2016-05-25 | 株式会社日立制作所 | Elevator device |
| CN105712153A (en) * | 2016-03-23 | 2016-06-29 | 安徽瑞格电梯服务股份有限公司 | Car safety protecting device |
| CN105731203A (en) * | 2016-03-10 | 2016-07-06 | 昆山市工研院智能制造技术有限公司 | Elevator car positioning method and system |
| CN108721796A (en) * | 2018-04-12 | 2018-11-02 | 霍盛红 | A kind of lifesaving appliance |
| CN111759213A (en) * | 2020-03-19 | 2020-10-13 | 广东蓝水花智能电子有限公司 | Elevator fault monitoring method |
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| JP2012201423A (en) * | 2011-03-23 | 2012-10-22 | Yutaka:Kk | Operation history recording device of elevator |
| CN103010875B (en) * | 2012-12-19 | 2014-07-02 | 上海电机学院 | Lift control system and lift control method |
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| CN111731959A (en) * | 2020-07-30 | 2020-10-02 | 菱王电梯股份有限公司 | An elevator terminal detection and protection device and detection and protection method thereof |
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| CA2658086C (en) * | 2004-05-28 | 2010-02-02 | Mitsubishi Denki Kabushiki Kaisha | Elevator rope slippage detecting device, and elevator apparatus |
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| CN1524057A (en) * | 2001-07-04 | 2004-08-25 | �����ذ¹ɷݹ�˾ | Method for preventing an inadmissibly high speed of the load receiving means of an elevator |
| CN1489548A (en) * | 2001-12-11 | 2004-04-14 | 三菱电机株式会社 | elevator |
| CN1486918A (en) * | 2002-10-01 | 2004-04-07 | 三菱电机株式会社 | Controller for elevator |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276474A (en) * | 2013-07-05 | 2015-01-14 | 株式会社日立制作所 | Elevator safety system |
| CN104276474B (en) * | 2013-07-05 | 2017-01-04 | 株式会社日立制作所 | The security system of elevator |
| CN105612118A (en) * | 2013-09-09 | 2016-05-25 | 株式会社日立制作所 | Elevator device |
| CN105612118B (en) * | 2013-09-09 | 2017-07-18 | 株式会社日立制作所 | Lift appliance |
| CN105731203A (en) * | 2016-03-10 | 2016-07-06 | 昆山市工研院智能制造技术有限公司 | Elevator car positioning method and system |
| CN105712153A (en) * | 2016-03-23 | 2016-06-29 | 安徽瑞格电梯服务股份有限公司 | Car safety protecting device |
| CN105712153B (en) * | 2016-03-23 | 2018-05-25 | 安徽瑞格电梯服务股份有限公司 | A kind of car safety protects equipment |
| CN108721796A (en) * | 2018-04-12 | 2018-11-02 | 霍盛红 | A kind of lifesaving appliance |
| CN111759213A (en) * | 2020-03-19 | 2020-10-13 | 广东蓝水花智能电子有限公司 | Elevator fault monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5600399B2 (en) | 2014-10-01 |
| CN101891092B (en) | 2015-06-24 |
| JP2010269854A (en) | 2010-12-02 |
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