CN101891092B - Elevator device - Google Patents
Elevator device Download PDFInfo
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- CN101891092B CN101891092B CN201010117995.1A CN201010117995A CN101891092B CN 101891092 B CN101891092 B CN 101891092B CN 201010117995 A CN201010117995 A CN 201010117995A CN 101891092 B CN101891092 B CN 101891092B
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- distance
- lift car
- hoist trunk
- terminal
- speed
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Abstract
The present invention provides an elevator device, capable of detecting overspeed of an elevator with high precision relative to an abnormal speed of an elevator car in an elevation path of the elevator to be detected for a long distance. The elevator device detects the speed of the elevator car (3) in the elevation path (1), when the speed of the elevator car (3) to be detected is more than a setting speed, the elevator car (3) is coercively decelerated to stop, the elevator device is configured to have range detection means (9, 11) and terminal distance detection means (10, 12), the range detection means detect whether the elevator car (3) is far from the bottom or the top of the elevation path (1) by a preestablished terminal distance, the terminal distance detection means detect a distance from the top or the bottom of the elevation path (1) to the elevator car when the distance is less to the preestablished terminal distance, and a set speed is determined by the distance detected by the terminal distance detection means.
Description
Technical field
The present invention relates to a kind of lift facility, it detects the speed of lift car, when the speed of lift car has exceeded setting speed, make drg action, forcibly make lift car slow down and stop, the present invention is particularly useful for forcibly making deceleration of elevator and the situation stopping at terminal floor.
Background technology
The energy disperser be arranged in elevator pit needs to have sufficient stroke, even if make, when lift car or counterbalanced weight collide with energy disperser at full speed because of fault etc., this lift car or counterbalanced weight also can be made to be cushioned fully.With regard to this energy disperser, preferably can stroke be arranged shorter, brake torque is arranged a little bit smaller.And in order to this point can be accomplished, need to detect accurately relative to the abnormal speed of the setting speed and lift car that make drg action and overrun.
As prior art, such as Patent Document 1 discloses a kind of scheme, it is overrun to set accurately to the distance of terminal according to lift car, detects the distance of lift car to terminal continuously, and sets to the distance continuous variable of terminal rank of overrunning according to lift car.
In addition, such as Patent Document 2 discloses a kind of scheme, it is in order to detect position and the speed of lift car easily with simple structure, governor rope sheave arranges the synchronization-moving speed controller rope of lifting with lift car, and test section and the coder of the position and speed for detecting lift car are set on governor rope sheave.
Patent documentation 1: Japanese Patent Laid-Open 2004-123279 publication
Patent documentation 2: International Publication WO2005/102899 patent
The lift car of detection continuously in the above prior art, in the scheme of the distance of terminal, must use laser etc. to carry out optical detection.Therefore, the detection of degree of precision can be carried out when carrying out short distance detection, but when the hoist trunk as elevator etc., need to carry out to grow distance when detecting, can measurement be caused because of the decay of light to become difficulty.In addition, also Laser emission mouth or reflecting plate must be set upward in hoist trunk, thus make above-mentioned Laser emission mouth and reflecting plate easily adhere to the dirt such as dust and greasy dirt, and likely make test section et out of order due to the object fallen down in the gap from lift car and elevator lobby.
On the other hand, in the distance detection device using governor and coder, need to arrange at the whole length direction of hoist trunk the speed controller rope making governor and lift car keep synchronous, so hoist trunk is longer, the situation on the easier equipment that generation speed controller rope is wound in hoist trunk when earthquake etc.In addition, also must confirm the state of speed controller rope, to check whether it receives damage etc.
Summary of the invention
The object of the invention is to solve problems of the prior art, even if make needing in the hoist trunk carrying out growing the elevator that distance detects (high-storey), also can carry out high-precision detection, thus can detect accurately relative to the abnormal speed of lift car and overrun.
In addition, other object of the present invention is to set overrunning relative to lift car abnormal speed accurately, makes it possible to shorten stroke when forcibly making deceleration of elevator and stop at terminal floor, and reduces the size of elevator pit.
Further, even if another object of the present invention is, when the hoist trunk of elevator is very long, also can reduce the frequency of maintenance process simulation, and the labour needed for maintenance process simulation is reduced.
The object of the invention is to the object of at least any one realized in 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 hoist trunk, when the speed of detected lift car has exceeded setting speed, described lift car is forcibly made to slow 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 the terminal distance that the top from described hoist trunk preset or bottom are started at, described terminal distance detection device is when described lift car is within described terminal distance, detect from the top of described hoist trunk or bottom to the distance of described lift car, described setting speed decides according to the distance detected by described terminal distance detection device.
Invention effect
According to the present invention, when lift car is within terminal distance, decide setting speed according to the distance of terminal to lift car, therefore, even if in the hoist trunk of long distance, also can detect accurately relative to the abnormal speed of lift car and overrun.
Accompanying drawing explanation
Fig. 1 is the diagram of block of the lift facility representing an embodiment of the present invention.
Fig. 2 is the diagram of curves representing the relation between elevator car position in an embodiment and running velocity and the relation between elevator car position and setting speed.
Fig. 3 is the diagram of block representing other embodiments of the present invention.
Fig. 4 is the diagram of block representing another other embodiments of the present invention.
Nomenclature: 1-hoist trunk; 2A, 2B-guide rail; 3-lift car; The main hoist cable of 4-; 5-counterbalanced weight; 6-winch; 7-emergency braking device; 8-speed detector; 9-top extent detecting device; 10-top terminals distance detection device; 11-bottom range detecting device; 12-bottom terminal distance detection device; 13-control setup; 14-setting speed change device; 15-abnormity judgement set; 16-normal operating speed; 17-(emergency braking) setting speed.
Detailed description of the invention
Fig. 1 represents the structure of lift facility, and lift facility is elevated along pair of guide rails 2A, the 2B be arranged on hoist trunk 1 internal face.The lift car 3 taken for passenger 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, by winch 6, driving rope sheave is rotated, thus lift car 3 is elevated in hoist trunk 1.
The bottom of lift car 3 is provided with emergency braking device 7, and this emergency braking device 7 is relative with guide rail 2A, 2B.In addition, also be respectively arranged with speed detector 8, top extent detecting device 9 and top terminals distance detection device 10, described speed detector 8 detects moving direction and the speed of lift car, whether described top extent detecting device 9 detects lift car 3 and is in top terminals distance that preset, 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 top continuously when lift car 3 is within the scope of top terminals.
In addition, also there is bottom range detecting device 11 and bottom terminal distance testing fixture 12, whether described bottom range detecting device 11 detects lift car 3 and is in bottom terminal distance that preset, 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 bottom continuously when lift car is within the scope of bottom terminal.
When the speed of the lift car 3 detected by speed detector 8 has exceeded the speed preset, control setup 13 exports the emergency braking instruction making to be arranged on not shown drg on winch 6 or emergency braking device 7 action, braking is implemented to lift car 3, forcibly lift car 3 is braked thus and make it stop.
Time within the scope of the top terminals that lift car 3 is in hoist trunk 1 or within the scope of bottom terminal, according to the distance of lift car 3 to the terminal of hoist trunk 1 detected by top terminals distance detection device 10 or bottom terminal distance detection device 12, determine setting speed in a continuously variable manner by setting speed change device 14.
By following method, lift facility confirms whether top extent detecting device 9 and top terminals distance detection device 10 are correctly playing function.
(1) when top extent detecting device 9 detects lift car 3, that grasps in advance the Distance geometry detected by top terminals distance detection device 10 compares from the distance of terminal to top extent detecting device 9 at top.
(2) when bottom range detecting device 11 detects lift car 3, that grasps in advance the Distance geometry detected by bottom terminal distance detection device 12 compares from the distance of terminal to bottom range detection means 11 of bottom.
After this, when above-mentioned two relatively in both range differences exceeded permission distance time, be judged as there occurs exception, and this situation abnormal notice maintenance management company will be there occurs.
15 represent and control winchs 6 with the abnormity judgement set stopped after making lift car 3 move to nearest floor, when top extent detecting device 9 detects lift car 3 but top terminals distance detection device 10 does not detect distance, and it is contrary to top extent detecting device 9 does not detect lift car 3 but top terminals distance detection device 10 detected distance, make lift car 3 move to nearest floor and stop, and abnormal this situation notice maintenance management company will be there occurs.In addition, be also the same for bottom range detecting device 11 and bottom terminal distance detection device 12.
As top extent detecting device 9 and bottom range detecting device 11, the limit switch of the position detector that preferred use is made up of opto-electronic pickup and shield or optic coupler and shield or contact, and also can laser detector, sound wave detector or magnetic detector be set by the specific position 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., or use by by the roller with coder by the detecting device wall etc. being pressed in guide rail 2A, 2B or hoist trunk 1 carrying out the contact detected.In addition, top terminals distance detection device 10 and bottom terminal distance detection device 12 preferably double as speed detector 8 and use.
Using when utilizing the reflection of laser and sound wave etc. to carry out the sensor detected to use as distance detection device, if top terminals distance is detected the top that 10 are arranged on 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) downward, then with by top terminals distance detection device 10 be arranged on lift car 3, situation bottom terminal distance detection device 12 being arranged on the bottom of hoist trunk 1 is compared, the pollution of object that can not be vulnerable to dust and drop from top.
If when arranging a speed detector 8, top extent detecting device 9, top terminals distance detection device 10, bottom range detecting device 11 and bottom terminal distance detection device 12 respectively to form triangular web, structure then can be made to become simple, if and when arranging multiple said apparatus respectively to form multiplicated system, then can reliability be improved.In addition, by arranging plural top extent detecting device 9 and bottom range detecting device 11 in the short transverse of hoist trunk spaced by a predetermined distance, the moving direction of lift car 3 can be detected, so speed detector 8 also can use the detecting device of the moving direction that can not detect lift car 3, so, structure can be made to become more simple.
In fig. 2, transverse axis represents the distance of the top-to-bottom from hoist trunk 1, and the longitudinal axis represents the normal operating speed 16 of elevator and setting speed and emergency braking setting speed 17.When being in the position beyond the top terminals scope in figure and beyond bottom terminal scope at lift car 3, emergency braking setting speed 17 is set to the specified value larger than the command speed of lift car 3, more specifically, certain value of obtaining after being set to be multiplied by the coefficient (such as 1.3 or 1.4) of regulation on the command speed of normal operating speed 16 of emergency braking setting speed 17.
Lift car 3 to be within the scope of top terminals or within the scope of bottom terminal time, emergency braking setting speed 17 is to be applied to deceleration/decel on lift car 3 and the distance to lift car 3 sets according to the following formula for benchmark from the top of hoist trunk 1 or the terminal of bottom.But regardless of the position of lift car 3, the value of emergency braking setting speed 17 is all no more than the value during position that lift car 3 is in beyond top terminals scope and beyond bottom terminal scope.
V: setting speed
A: be applied to the deceleration/decel on lift car 3
X: top or the distance of bottom terminal to lift car 3
Top terminals scope and bottom terminal scope determine according to the 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 extent detecting device 9 arranges the intersection of top terminals scope in fig. 2 and intermediate range or starts at the position in the affluence distance of formula 2 from this intersection.Bottom range detecting device 11 is also arranged in the same way.
The emergency braking of lift facility carries out with following method according to story height.
When lift car 3 is in the position beyond top terminals scope and beyond bottom terminal scope, emergency braking setting speed 17 is set to certain value, so, occurring that the speed of lift car 3 is in than normal operating speed 16 state faster because of abnormal running, and the speed detected by speed detector 8 is when having exceeded emergency braking setting speed 17, emergency braking instruction is exported, by being arranged on not shown drg on winch 6 or emergency braking apparatus 7 forcibly makes lift car 3 slow down and stop by control setup 13.Therefore, even if making the braking of the drg be arranged on winch 6 in the out-of-action situation of lift car 3 because of cut-off grade of main hoist cable 4, lift car 3 also can be made to stop under can not there is the state of colliding with the top of hoist trunk 1 or bottom.
When detecting lift car 3 close to top by top extent detecting device 9, top terminals distance detection device 10 measures the distance from the terminal at top to lift car 3.Now, to measuring distance and comparing from the predetermined distance of terminal to top extent detecting device 9 at top of grasping in advance, when both range differences have exceeded permission distance, abnormity judgement set 15 will there occurs this situation abnormal notice maintenance management company, and control winch 6 and stop after making lift car 3 move to nearest floor.
When the range difference of both sides is when allowing within distance, setting speed change device 14 changes emergency braking setting speed 17 according to the distance measured.The distance shorter then emergency braking setting speed 17 be configured to from top according to formula 1 due to emergency braking setting speed 17 is lower, thus lift car 3 more close to top then emergency braking instruction more early export.Therefore, even if abnormal operating condition has appearred in lift car 3 within the scope of top terminals, also can lift car 3 have been stopped by the drg and emergency braking device 7 etc. be arranged on winch 6 and can not collide with top.In addition, the situation near the bottom of hoist trunk 1 is also identical with the situation at top.
The top extent detecting device 9 of Fig. 3 and bottom range detecting device 11 are formed by detecting lift car 3 device whether be within the scope of terminal all the time, instead of are detected the device whether having lift car 3 to pass through formed by noncontinuity.
Top extent detecting device 9 and bottom range detecting device 11 are formed at lift car 3 side and have optic coupler, at the top of hoist trunk 1 side and bottom, there is the length shield identical with respective terminal scope respectively, and use laser, electric wave or sound wave etc. to detect lift car 3, counterbalanced weight 5 or main hoist cable 4.
Top extent detecting device 9 is the same with bottom terminal distance detection device 12 with top terminals distance detection device 10 with bottom range detecting device 11, also can be used for measuring from top terminals or bottom terminal the distance to lift car 3, now, as top extent detecting device 9 and bottom range detecting device 11, can use measuring distance than top terminals distance detection device 10 and distance detection device that precision identical or lower short with the measuring distance of bottom terminal distance detection device 12.
Top extent detecting device 9 and the top terminals distance detection device 10 of Fig. 4 are not the tops being arranged on hoist trunk 1, but are arranged on the bottom of hoist trunk 1.Top extent detecting device 9 be not used to detect lift car 3 whether be within the scope of top terminals, and be used to detect counterbalanced weight 5 whether be within the scope of bottom terminal.Equally, top terminals distance detection device 10 is not used to measure the top terminals distance from top to lift car till 3, and to be used to measure from bottom to counterbalanced weight the 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, then, when counterbalanced weight 5 is within the scope of bottom terminal, lift car 3 is necessarily within the scope of top terminals.Thus, top extent detecting device 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, it is possible to make the maintenance examination of each detecting device become more convenient, and production time can be shortened.In addition, also all detecting devices all can be arranged on the top of hoist trunk 1, but now, by lose main hoist cable 4 cut-off and cause lift car 3 to drop time measure means from the distance of lift car 3 to bottom, therefore the cut-out the device exporting emergency brake signal that detect main hoist cable 4 are preferably set.
Claims (2)
1. a lift facility, this lift facility has the speed detector of the speed of the lift car detected in hoist trunk and the counterbalanced weight be connected with described lift car by main hoist cable, when the speed of detected lift car has exceeded setting speed, described lift car is forcibly made to slow down and stop, the feature of described lift facility is to have:
Bottom range detecting device, it is arranged on the bottom of described hoist trunk, there is opto-electronic pickup and shield or optic coupler and shield, detect described lift car and whether have passed ad-hoc location in the terminal distance of starting at from the bottom of described hoist trunk that presets;
Top extent detecting device, it is arranged on the bottom of described hoist trunk, there is opto-electronic pickup and shield or optic coupler and shield, detect described counterbalanced weight and whether have passed ad-hoc location in the terminal of starting at from the bottom of the described hoist trunk distance that presets, detect described lift car thus and whether have passed ad-hoc location in the terminal distance of starting at from the top of described hoist trunk that presets;
Bottom terminal distance detection device, it is arranged on the bottom of described hoist trunk and utilizes laser or sound wave to detect, when described lift car is detected by described bottom range detecting device and is within the terminal of starting at from the bottom of the described hoist trunk distance preset, by reflecting the distance measured continuously from the bottom of described hoist trunk to described lift car;
Top terminals distance detection device, it is arranged on the bottom of described hoist trunk and utilizes laser or sound wave to detect, when described counterbalanced weight is detected by described top extent detecting device and is within the terminal of starting at from the bottom of the described hoist trunk distance preset, by reflecting the distance measured continuously from the bottom of described hoist trunk to described counterbalanced weight, measure the distance from the top of described hoist trunk to described lift car thus continuously
When described lift car preset the terminal of starting at from the bottom of described hoist trunk distance in addition and described counterbalanced weight preset the terminal of starting at from the bottom of described hoist trunk distance in addition time, described setting speed is set to be greater than the specified value of the command speed of described lift car; When described lift car is within the terminal of starting at from the bottom of the described hoist trunk distance preset, described setting speed is set to, and the value of shorter then this setting speed of the distance from the bottom of described hoist trunk to described lift car determined by described bottom terminal distance detection device is less; When described counterbalanced weight is within the terminal of starting at from the bottom of the described hoist trunk distance preset, described setting speed is set to, and the value of shorter then this setting speed of the distance from the bottom of described hoist trunk to described counterbalanced weight determined by described top terminals distance detection device is less.
2. lift facility as claimed in claim 1, is characterized in that,
When described lift car is close to the bottom of described hoist trunk, and when being detected by described bottom range detecting device, the bottom of the distance detected by described bottom terminal distance detection device and the described hoist trunk predetermined distance to described bottom range detecting device is compared, when both differences have exceeded permissible value, be judged as having occurred exception
When described counterbalanced weight is close to the bottom of described hoist trunk, and when being detected by described top extent detecting device, the bottom of the distance detected by described top terminals distance detection device and the described hoist trunk predetermined distance to described top extent detecting device is compared, when both differences have exceeded permissible value, be judged as having occurred exception.
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 CN101891092A (en) | 2010-11-24 |
| CN101891092B true 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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| Country | Link |
|---|---|
| JP (1) | JP5600399B2 (en) |
| CN (1) | CN101891092B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP6317077B2 (en) * | 2013-07-05 | 2018-04-25 | 株式会社日立製作所 | Elevator safety system |
| CN105612118B (en) * | 2013-09-09 | 2017-07-18 | 株式会社日立制作所 | Lift appliance |
| CN105731203B (en) * | 2016-03-10 | 2018-11-02 | 昆山市工研院智能制造技术有限公司 | Lift car localization method and system |
| 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 |
| CN107055269B (en) * | 2017-05-17 | 2023-06-09 | 快意电梯股份有限公司 | Multifunctional permanent magnet synchronous traction machine |
| CN108721796A (en) * | 2018-04-12 | 2018-11-02 | 霍盛红 | A kind of lifesaving appliance |
| CN111265139A (en) * | 2020-03-19 | 2020-06-12 | 广东蓝水花智能电子有限公司 | Intelligent toilet seat control method |
| CN111731959A (en) * | 2020-07-30 | 2020-10-02 | 菱王电梯股份有限公司 | Elevator terminal detection protection device and detection protection method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486918A (en) * | 2002-10-01 | 2004-04-07 | 三菱电机株式会社 | Controller for elevator |
| CN101164858A (en) * | 2006-10-16 | 2008-04-23 | 株式会社日立制作所 | Elevator with multi-compartment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7117979B2 (en) * | 2001-07-04 | 2006-10-10 | Inventio Ag | Method for preventing an inadmissibly high speed of the load receiving means of an elevator |
| CN1297465C (en) * | 2001-12-11 | 2007-01-31 | 三菱电机株式会社 | Elevator |
| CN1720189A (en) * | 2003-02-25 | 2006-01-11 | 三菱电机株式会社 | Governor for elevator |
| ES2376168T3 (en) * | 2004-05-28 | 2012-03-09 | Mitsubishi Denki Kabushiki Kaisha | ELEVATOR ROPE SLIDE DETECTOR AND ELEVATOR SYSTEM. |
| JP5060805B2 (en) * | 2007-03-20 | 2012-10-31 | 東芝エレベータ株式会社 | Elevator terminal floor speed control system |
| JP2009120370A (en) * | 2007-11-16 | 2009-06-04 | Toshiba Elevator Co Ltd | Elevator |
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- 2009-05-19 JP JP2009120459A patent/JP5600399B2/en active Active
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- 2010-02-10 CN CN201010117995.1A patent/CN101891092B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486918A (en) * | 2002-10-01 | 2004-04-07 | 三菱电机株式会社 | Controller for elevator |
| CN101164858A (en) * | 2006-10-16 | 2008-04-23 | 株式会社日立制作所 | Elevator with multi-compartment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5600399B2 (en) | 2014-10-01 |
| JP2010269854A (en) | 2010-12-02 |
| CN101891092A (en) | 2010-11-24 |
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