CN103086221A - Extension protecting structure for hoisting rope of elevator - Google Patents
Extension protecting structure for hoisting rope of elevator Download PDFInfo
- Publication number
- CN103086221A CN103086221A CN2012104681559A CN201210468155A CN103086221A CN 103086221 A CN103086221 A CN 103086221A CN 2012104681559 A CN2012104681559 A CN 2012104681559A CN 201210468155 A CN201210468155 A CN 201210468155A CN 103086221 A CN103086221 A CN 103086221A
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- elevator
- counterweight
- position switch
- hoist ropes
- upper limit
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Abstract
The invention discloses an extension protecting structure for a hoisting rope of an elevator. When the hoisting rope is in a normal state (namely does not overextend), a switch plate on a counterweight does not act together with a lower limit switch but acts together with an upper limit switch every time the switch plate reaches a top layer, and a control loop of the elevator is turned on at this time to ensure that the elevator runs normally. After the hoisting rope overextends, the lower limit switch acts and the upper limit switch does not act to ensure that the control loop of the elevator is turned off and the elevator is stopped, so that elevator accidents caused by overextension of the hoisting rope are fundamentally avoided, and a buffer on a counterweight side is prevented from being touched.
Description
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Technical field
the present invention relates to a kind of elevator rope extensive protection structure.
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Background technology
be installed on the elevator of sealing in hoistway when just place in operation, the extension of hoist ropes is a problem that relatively perplexs the repair and maintenance personnel.As everyone knows, the extension of hoist ropes there is no impact to cage side, because elevator landing appts is arranged, stop terraced car all can flush with landing sill at every turn, so for whole hoist ropes, its extension finally all can embody between counterweight and counterweight side buffer, and the extension of hoist ropes is larger, and the distance between counterweight and counterweight side buffer is just less.Especially the elevator of large hoisting depth or large wiring than the elevator of (traction ratio) in, the extension of hoist ropes should cause enough attention.Generally, new terraced place in operation all must carry out the correction of hoist ropes length after a period of time, orthodox method is observed or relies on the experience of self to judge whether to be proofreaied and correct in hoistway by the repair and maintenance personnel, the method human element is too many, can not fundamentally solve excessive extension because of hoist ropes and cause the counterweight side buffer to be collided triggering the elevator accident caused.
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Summary of the invention
the purpose of this invention is to provide a kind of elevator rope extensive protection structure, once hoist ropes excessively extends, by upper limit position switch or lower position switch, disconnect the control loop of elevator, forbid the elevator operation, and avoid the counterweight side buffer to be touched.
for achieving the above object, the technical solution used in the present invention is: a kind of elevator rope extensive protection structure, comprise hoist ropes, can be driven by described hoist ropes the counterweight of lifting, be arranged on the counterweight side buffer on the pit of elevator, described hoist ropes extensive protection structure also comprises upper limit position switch and the lower position switch in the hoistway that is arranged on elevator, be arranged on the key-board of described counterweight outside, described upper limit position switch and/or described lower position switch string are in the control loop of elevator, described hoist ropes has normal condition and excessive extension state, when this hoist ropes during in normal condition, and described counterweight drops to extreme lower position, described key-board does not touch described lower position switch, described counterweight does not touch described counterweight side buffer, when described hoist ropes during in normal condition, and described counterweight rises to extreme higher position, and described key-board touches described upper limit position switch, when described hoist ropes during in excessive extension state, and described counterweight drops to extreme lower position, and described key-board touches described lower position switch, and described counterweight does not touch described counterweight side buffer, when described hoist ropes during in excessive extension state, and described counterweight rises to extreme higher position, and described key-board does not touch described upper limit position switch, when described hoist ropes, during in excessive extension state, the control loop of described elevator disconnects.
during concrete enforcement, the shell of described upper limit position switch and described lower position switch all is fixed on the guide rail in described hoistway.
utilization due to technique scheme; the present invention compared with prior art has following advantages: in this elevator rope extensive protection structure; key-board on counterweight is (while not occurring excessively to extend) when hoist ropes is normal; should with the lower position switch attonity; while with upper limit position switch, arriving top layer, all should move at every turn; now the control loop of elevator leads to, and does not affect the operation of elevator.After hoist ropes occurs excessively to extend; lower position switch should move; and upper limit position switch is failure to actuate; the control loop of elevator disconnects; stop the elevator operation; this elevator rope extensive protection structure has fundamentally been avoided, because hoist ropes excessively extends the elevator accident caused, avoiding the counterweight side buffer to be touched.
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The accompanying drawing explanation
accompanying drawing 1 is schematic diagram one of the present invention, and wherein counterweight rises to extreme higher position, and the key-board on counterweight touches upper limit position switch, shows that hoist ropes is in normal condition;
accompanying drawing 2 is schematic diagram two of the present invention, and wherein counterweight drops to extreme lower position, and the key-board on counterweight does not touch lower position switch, also shows that hoist ropes is in normal condition;
accompanying drawing 3 is the schematic diagram of the shake-up of the key-board on counterweight in the present invention lower position switch, and now counterweight drops to extreme lower position, shows that hoist ropes is in excessive extension state;
accompanying drawing 4 is the schematic diagram that in the present invention, the key-board on counterweight does not touch upper limit position switch, and now counterweight rises to extreme higher position, also shows that hoist ropes is in excessive extension state.
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The specific embodiment
further set forth structure of the present invention below in conjunction with accompanying drawing.
shown in Fig. 1-4; a kind of elevator rope extensive protection structure; comprise hoist ropes 1, car 8, counterweight 4, be arranged on counterweight side buffer 6 on the pit of elevator, be fixed on upper limit position switch 3 and lower position switch 5 in the hoistway of elevator by cage guide, be arranged on the key-board 2 of counterweight 4 outsides; upper limit position switch 3 and/or lower position switch 5 strings, in the control loop of elevator, are controlled the break-make of control loop.In Fig. 1-2, the traction ratio of elevator is 2:1, specifically, one end of hoist ropes 1 is fixed, and after then walking around the rope sheave 7 of counterweight 4 downwards, more upwards walks around the traction sheave 9 of towing machine, then walk around again the rope sheave 10 of car 8 downwards, finally fix the other end of hoist ropes 1.Traction sheave 9 drives hoist ropes 1 to move, thereby carries out lifting with car 8, counterweight 4.Hoist ropes 1 has normal condition and excessive extension state, when this hoist ropes 1, during in normal condition, allows elevator normally to move; During in excessive extension state, disconnect the control loop of elevator when hoist ropes 1, forbid the elevator operation.Specifically, at hoist ropes 1 during in normal condition, and counterweight 4 drops to extreme lower position, and as shown in Figure 2, key-board 2 does not touch to lower position switch 5, and counterweight 4 does not touch counterweight side buffer 6; When hoist ropes 1 during in normal condition, and counterweight 4 rises to extreme higher position, and as shown in Figure 1, key-board 2 touches to upper limit position switch 3; That is to say, when elevator moves, when the key-board 2 on counterweight 4 does not occur excessively to extend at hoist ropes 1, should with lower position switch 5 attonitys, while with upper limit position switch 3 is each, arriving top layer, all should move, now the control loop of elevator leads to, and does not affect the operation of elevator.When hoist ropes 1 during in excessive extension state, and counterweight 4 drops to extreme lower position, and key-board 2 touches to lower position switch 5, and as shown in Figure 3, now counterweight 4 does not touch counterweight side buffer 6 yet; When hoist ropes 1 during in excessive extension state, and counterweight 4 rises to extreme higher position, and key-board 2 does not touch to upper limit position switch 3, as shown in Figure 4; When hoist ropes 1, during in excessive extension state, the control loop of elevator disconnects, and stops the elevator operation, and reports an error; That is to say, after hoist ropes 1 occurs excessively to extend, lower position switch 5 should move, and upper limit position switch 3 should be failure to actuate.Can make elevator stop the normal switch used can be only both that lower position switch 5 can be also only upper limit position switch 3, can also be the situation of bound bit switch 3 and 5 combinations.
to sum up, heavy side hoistway top, bottom are being arranged to upper limit position switch 3, lower position switch 5.When elevator normally moves to minimum stop, there is certain distance between lower position switch 5 and key-board 2, now smallest limit switch 5 is failure to actuate; When elevator normally moves to top station, upper limit position switch 3 should contact with key-board 2, upper limit position switch 3 actions.After elevator generation hoist ropes 1 excessively extends, if counterweight 4 when extreme lower position, lower position switch 5 should move; If counterweight 4 is when top station, upper limit position switch should be failure to actuate.In the control loop of upper limit position switch 3 and/or lower position switch 5 access elevators; after if the excessive extension of hoist ropes 1 occurs; by elevator, controlling mainboard is reported an error; stopping elevator normally using; and remind on-the-spot repair and maintenance personnel to carry out the correction of hoist ropes length; this elevator rope extensive protection structure has fundamentally solved because hoist ropes excessively extends the elevator accident caused, avoids the counterweight side buffer to be touched.
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Claims (2)
1. an elevator rope extensive protection structure, comprise hoist ropes, can be driven by described hoist ropes the counterweight of lifting, be arranged on the counterweight side buffer on the pit of elevator, it is characterized in that: described hoist ropes extensive protection structure also comprises upper limit position switch and the lower position switch in the hoistway that is arranged on elevator, be arranged on the key-board of described counterweight outside, described upper limit position switch and/or described lower position switch string are in the control loop of elevator, described hoist ropes has normal condition and excessive extension state, when this hoist ropes during in normal condition, and described counterweight drops to extreme lower position, described key-board does not touch described lower position switch, described counterweight does not touch described counterweight side buffer, when described hoist ropes during in normal condition, and described counterweight rises to extreme higher position, and described key-board touches described upper limit position switch, when described hoist ropes during in excessive extension state, and described counterweight drops to extreme lower position, and described key-board touches described lower position switch, and described counterweight does not touch described counterweight side buffer, when described hoist ropes during in excessive extension state, and described counterweight rises to extreme higher position, and described key-board does not touch described upper limit position switch, when described hoist ropes, during in excessive extension state, the control loop of described elevator disconnects.
2. a kind of elevator rope extensive protection structure according to claim 1, it is characterized in that: the shell of described upper limit position switch and described lower position switch all is fixed on the guide rail in described hoistway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210468155.9A CN103086221B (en) | 2012-11-19 | 2012-11-19 | Extension protecting structure for hoisting rope of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210468155.9A CN103086221B (en) | 2012-11-19 | 2012-11-19 | Extension protecting structure for hoisting rope of elevator |
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| Publication Number | Publication Date |
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| CN103086221A true CN103086221A (en) | 2013-05-08 |
| CN103086221B CN103086221B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210468155.9A Active CN103086221B (en) | 2012-11-19 | 2012-11-19 | Extension protecting structure for hoisting rope of elevator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738817A (en) * | 2014-01-06 | 2014-04-23 | 日立电梯（中国）有限公司 | Safety protection system and safety protection method for traction of elevator |
| CN107720475A (en) * | 2017-10-23 | 2018-02-23 | 广元市特种设备监督检验所 | A kind of Elevator weight sensor buffer distance automatic detection device |
| CN110240045A (en) * | 2019-05-27 | 2019-09-17 | 上海三菱电梯有限公司 | A kind of elevator device |
| CN112897271A (en) * | 2021-02-07 | 2021-06-04 | 菱王电梯有限公司 | Elevator counterweight safety protection device and control method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6418048B2 (en) * | 2015-04-14 | 2018-11-07 | 三菱電機ビルテクノサービス株式会社 | Elevator counterweight clearance measuring device and counterweight clearance measuring method |
Citations (6)
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|---|---|---|---|---|
| JPH11171425A (en) * | 1997-12-16 | 1999-06-29 | Hitachi Ltd | Rope slack detector for hydraulic elevator |
| CN201089682Y (en) * | 2007-08-07 | 2008-07-23 | 上海永大电梯设备有限公司 | Device for detecting draw type elevator main steel wire rope abnormal relative elongation |
| CN201334290Y (en) * | 2008-12-31 | 2009-10-28 | 苏州江南嘉捷电梯股份有限公司 | Elevator rope slack protecting device |
| CN201334291Y (en) * | 2008-12-31 | 2009-10-28 | 苏州江南嘉捷电梯股份有限公司 | Elevator rope slack protecting device |
| CN201801265U (en) * | 2010-05-06 | 2011-04-20 | 黄东凌 | Energy consumption type buffer for elevator |
| CN202936051U (en) * | 2012-11-19 | 2013-05-15 | 江南嘉捷电梯股份有限公司 | Elevator hoist rope extension protection structure |
-
2012
- 2012-11-19 CN CN201210468155.9A patent/CN103086221B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11171425A (en) * | 1997-12-16 | 1999-06-29 | Hitachi Ltd | Rope slack detector for hydraulic elevator |
| CN201089682Y (en) * | 2007-08-07 | 2008-07-23 | 上海永大电梯设备有限公司 | Device for detecting draw type elevator main steel wire rope abnormal relative elongation |
| CN201334290Y (en) * | 2008-12-31 | 2009-10-28 | 苏州江南嘉捷电梯股份有限公司 | Elevator rope slack protecting device |
| CN201334291Y (en) * | 2008-12-31 | 2009-10-28 | 苏州江南嘉捷电梯股份有限公司 | Elevator rope slack protecting device |
| CN201801265U (en) * | 2010-05-06 | 2011-04-20 | 黄东凌 | Energy consumption type buffer for elevator |
| CN202936051U (en) * | 2012-11-19 | 2013-05-15 | 江南嘉捷电梯股份有限公司 | Elevator hoist rope extension protection structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738817A (en) * | 2014-01-06 | 2014-04-23 | 日立电梯（中国）有限公司 | Safety protection system and safety protection method for traction of elevator |
| CN103738817B (en) * | 2014-01-06 | 2017-03-15 | 日立电梯（中国）有限公司 | Elevator traction safety protection system and method |
| CN107720475A (en) * | 2017-10-23 | 2018-02-23 | 广元市特种设备监督检验所 | A kind of Elevator weight sensor buffer distance automatic detection device |
| CN110240045A (en) * | 2019-05-27 | 2019-09-17 | 上海三菱电梯有限公司 | A kind of elevator device |
| CN112897271A (en) * | 2021-02-07 | 2021-06-04 | 菱王电梯有限公司 | Elevator counterweight safety protection device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103086221B (en) | 2015-04-08 |
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Effective date of registration: 20180425 Address after: 215122 28 Weixin Road, Suzhou Industrial Park, Suzhou, Jiangsu Patentee after: Jiangnan Jiajie Lift Co., Ltd., Jiangsu Address before: 215122 No. 718 Ting Ting Road, Suzhou Industrial Park, Jiangsu Patentee before: SJEC Corporation |