CN102514995A - Safety protection device for elevator speed limiter - Google Patents
Safety protection device for elevator speed limiter Download PDFInfo
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- CN102514995A CN102514995A CN2011104465254A CN201110446525A CN102514995A CN 102514995 A CN102514995 A CN 102514995A CN 2011104465254 A CN2011104465254 A CN 2011104465254A CN 201110446525 A CN201110446525 A CN 201110446525A CN 102514995 A CN102514995 A CN 102514995A
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- wheel
- elevator
- signal receiving
- velocity limiter
- receiving device
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Abstract
The invention discloses a safety protection device for an elevator speed limiter. A signal transmitting device transmits signals, the signals cannot be received by a signal receiving device if the signals are stopped by web plates, and the signals transmitted by the signal transmitting device can be received by the signal receiving device only through a gap space between two adjacent wet plates. Running speed of a speed limiter wheel can be reflected through signal receiving frequency of the signal receiving device, a control system detects the signal receiving frequency of the signal receiving device, and instantaneous speed of the speed limiter wheel is calculated according to the frequency and determined. Once the instantaneous speed of the speed limiter wheel exceeds a range of plus-minus 5% of instantaneous running speed of an elevator, for example, struck failure of the speed limiter wheel is caused by the fact that a rotation shaft is broken or a bearing is struck, the control system can transmit signals for stopping the elevator, the elevator can be stopped in time, and safety performance of the elevator is guaranteed. The safety protection device for the elevator speed limiter avoids malfunction of safety tongs caused by the fact that a speed limiter steel wire rope generates a force for pulling the safety tongs because the speed limiter wheel is struck, or avoids that the safety tongs cannot be triggered to move because the steel wire rope slips in a speed limiter rope groove under the condition of overspeed of the elevator because of some reason.
Description
Technical field
the present invention relates to the elevator governor safety guard.
Background technology
In
elevator governor; Be supported with turning cylinder on the velocity limiter seat; On turning cylinder, upwards walk around in the grooving of velocity limiter wheel by speed limiter wire rope through bearing carrier ring for the velocity limiter wheel, when velocity limiter wheel normal operation; Be applied to friction force on the steel rope through velocity limiter wheel and can lift steel rope and touch the safety tongs action, perhaps steel rope is pressed in the grooving of velocity limiter wheel and lifts the safety tongs action through fixture block.The axle fracture in case rotate, then the velocity limiter wheel can drop down onto on the velocity limiter seat, the stuck inefficacy of velocity limiter wheel meeting, it is stuck that the velocity limiter wheel also can take place when perhaps bearing is stuck.In case velocity limiter is taken turns stuck inefficacy, cause speed limiter wire rope to produce a power that lifts safety tongs, thereby cause the safety tongs misoperation; Or causing elevator under the situation of hypervelocity, steel rope skids in velocity limiter wheel grooving and can't trigger the safety tongs action.
Summary of the invention
in case the purpose of this invention is to provide take place that velocity limiter is taken turns stuck inefficacy then elevator can be out of service safety guard.
are for achieving the above object; The technical scheme that the present invention adopts is: the elevator governor safety guard; Comprise the velocity limiter seat, be arranged on the velocity limiter wheel on the said velocity limiter seat rotationally through turning cylinder; This velocity limiter wheel comprises interior all wheel seats, the periphery wheel body that can be set in rotationally on the said turning cylinder, be arranged on said in a plurality of webs between all wheel seats and the said periphery wheel body; These a plurality of webs evenly are spaced along wheel Zhou Fangxiang; Between adjacent two webs clearance space is arranged; Said safety guard comprise a side that is positioned at said velocity limiter wheel radial face sender unit, be positioned at the relative opposite side of said velocity limiter wheel radial face and can receive the signal receiving device of the signal of said sender unit emission through said clearance space, send the control system that stops the elevator run signal when communicating with said signal receiving device and can calculate the momentary velocity of said velocity limiter wheel and can surpass positive and negative 5% scope of the instantaneous running velocity of elevator according to the frequency that this signal receiving device receives signal at the momentary velocity of this velocity limiter wheel, said sender unit, said signal receiving device all are arranged on the said velocity limiter seat.
as a kind of concrete embodiment, said sender unit, said signal receiving device are coder, inductive probe device or sensor.
owing to the utilization of technique scheme, the present invention compared with prior art has advantage: sender unit is launched signal, if run into stopping of web; Then signal can't be received by signal receiving device; The signal that sender unit is launched has only through the clearance space between adjacent two webs and just can be received by signal receiving device, so the operating speed of velocity limiter wheel can reflect that control system detects the frequency that signal receiving device receives signal through the frequency that signal receiving device receives signal; Calculate the momentary velocity of velocity limiter wheel according to this frequency; And judge, in case when the momentary velocity of velocity limiter wheel surpasses positive and negative 5% scope of the instantaneous running velocity of elevator, for example; Turning cylinder fracture or bearing be stuck when causing the stuck inefficacy of velocity limiter wheel; Then control system can be sent and stop the elevator run signal, and elevator is stopped, and guarantees the safety performance of elevator; Prevent because of the stuck speed limiter wire rope that causes of velocity limiter wheel produces a power that lifts safety tongs, thereby cause the safety tongs misoperation; Or prevent that steel rope skids and can't trigger the safety tongs action under the situation of elevator because of a certain former thereby hypervelocity that causes in velocity limiter wheel grooving.
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Description of drawings
Accompanying drawing 1 is a scheme drawing of the present invention;
accompanying drawing 2 is the front schematic view of velocity limiter wheel among the present invention.
The specific embodiment
Structure of the present invention is further set forth below in conjunction with accompanying drawing in
.
are referring to shown in Fig. 1-2; The elevator governor safety guard; Comprise velocity limiter seat 2, be arranged on velocity limiter wheel 6, sender unit 3, signal receiving device 1, control system on the velocity limiter seat 2 rotationally through turning cylinder 4; Velocity limiter wheel 6 comprise through bearing be set in interior all wheel seats 62, periphery wheel body 61 on the turning cylinder 4 rotationally, be arranged in a plurality of webs 63 between all wheel seats 62 and the periphery wheel body 61; These a plurality of webs 63 evenly are spaced along wheel Zhou Fangxiang, between adjacent two webs 63 clearance space 64 are arranged, and speed limiter wire rope 5 is upwards walked around in the grooving of periphery wheel body 61.Sender unit 3, signal receiving device 1 all are arranged on the velocity limiter seat 2, and lay respectively at the relative both sides that velocity limiter is taken turns 6 radial faces.Sender unit 3 is launched signal, if run into stopping of web 63, then signal can't send out; Promptly can't be received by signal receiving device 1, the signal that sender unit 3 is launched has only through the clearance space 64 between adjacent two webs 63, just can be received by signal receiving device 1; So when 6 runnings of velocity limiter wheel; The operating speed of velocity limiter wheel 6 can reflect that frequency is high more through the frequency that signal receiving device 1 receives signal, and the operating speed of expression velocity limiter wheel 6 is fast more.Sender unit 3, signal receiving device 1 can adopt coder, inductive probe device or sensor.Control system and signal receiving device 1 communicate, and control system detects the frequency that signal receiving device 1 receives signal, calculate the momentary velocity of velocity limiter wheel according to this frequency; And judge, judge that the velocity limiter wheel whether with elevator synchronized operation, that is to say; When the momentary velocity of this velocity limiter wheel 6 was in positive and negative 5% scope of the instantaneous running velocity of elevator, control system move, in case the momentary velocity of velocity limiter wheel 6 is during above positive and negative 5% scope of the instantaneous running velocity of elevator; For example, turning cylinder 4 fracture or bearing be stuck when causing velocity limiter to take turns 6 stuck inefficacies, and then control system can be sent and stop the elevator run signal; Elevator is stopped; Guarantee the safety performance of elevator, prevent because of the stuck speed limiter wire rope that causes of velocity limiter wheel produces a power that lifts safety tongs, thereby cause the safety tongs misoperation; Or prevent that steel rope skids and can't trigger the safety tongs action under the situation of elevator because of a certain former thereby hypervelocity that causes in velocity limiter wheel grooving.
Claims (2)
1. elevator governor safety guard; Comprise the velocity limiter seat, be arranged on the velocity limiter wheel on the said velocity limiter seat rotationally through turning cylinder; This velocity limiter wheel comprises interior all wheel seats, the periphery wheel body that can be set in rotationally on the said turning cylinder, be arranged on said in a plurality of webs between all wheel seats and the said periphery wheel body; These a plurality of webs evenly are spaced along wheel Zhou Fangxiang; Between adjacent two webs clearance space is arranged; It is characterized in that: said safety guard comprise a side that is positioned at said velocity limiter wheel radial face sender unit, be positioned at the relative opposite side of said velocity limiter wheel radial face and can receive the signal receiving device of the signal of said sender unit emission through said clearance space, send the control system that stops the elevator run signal when communicating with said signal receiving device and can calculate the momentary velocity of said velocity limiter wheel and can surpass positive and negative 5% scope of the instantaneous running velocity of elevator according to the frequency that this signal receiving device receives signal at the momentary velocity of this velocity limiter wheel, said sender unit, said signal receiving device all are arranged on the said velocity limiter seat.
2. elevator governor safety guard according to claim 1 is characterized in that: said sender unit, said signal receiving device are coder, inductive probe device or sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110446525.4A CN102514995B (en) | 2011-12-28 | 2011-12-28 | Safety protection device for elevator speed limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110446525.4A CN102514995B (en) | 2011-12-28 | 2011-12-28 | Safety protection device for elevator speed limiter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102514995A true CN102514995A (en) | 2012-06-27 |
| CN102514995B CN102514995B (en) | 2014-08-06 |
Family
ID=46286151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110446525.4A Active CN102514995B (en) | 2011-12-28 | 2011-12-28 | Safety protection device for elevator speed limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102514995B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682917A (en) * | 2021-08-26 | 2021-11-23 | 日立电梯（中国）有限公司 | Elevator safety device and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07206299A (en) * | 1994-01-13 | 1995-08-08 | Hitachi Ltd | Safety signal transmitting system for elevator |
| CN201016077Y (en) * | 2007-02-02 | 2008-02-06 | 袁传森 | Optical rotary encoder type speed limiter of elevator |
| CN201702035U (en) * | 2010-04-26 | 2011-01-12 | 浙江轻机实业有限公司 | Speed measuring device for disk centrifuge |
| CN201749125U (en) * | 2010-06-07 | 2011-02-16 | 长安大学 | Model car speed measuring device |
| CN201834626U (en) * | 2010-08-16 | 2011-05-18 | 通用电梯（中国）有限公司 | Elevator |
| CN202390047U (en) * | 2011-12-28 | 2012-08-22 | 江南嘉捷电梯股份有限公司 | Safety protection device of elevator speed limiting device |
-
2011
- 2011-12-28 CN CN201110446525.4A patent/CN102514995B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07206299A (en) * | 1994-01-13 | 1995-08-08 | Hitachi Ltd | Safety signal transmitting system for elevator |
| CN201016077Y (en) * | 2007-02-02 | 2008-02-06 | 袁传森 | Optical rotary encoder type speed limiter of elevator |
| CN201702035U (en) * | 2010-04-26 | 2011-01-12 | 浙江轻机实业有限公司 | Speed measuring device for disk centrifuge |
| CN201749125U (en) * | 2010-06-07 | 2011-02-16 | 长安大学 | Model car speed measuring device |
| CN201834626U (en) * | 2010-08-16 | 2011-05-18 | 通用电梯（中国）有限公司 | Elevator |
| CN202390047U (en) * | 2011-12-28 | 2012-08-22 | 江南嘉捷电梯股份有限公司 | Safety protection device of elevator speed limiting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682917A (en) * | 2021-08-26 | 2021-11-23 | 日立电梯（中国）有限公司 | Elevator safety device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102514995B (en) | 2014-08-06 |
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Effective date of registration: 20180427 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 |
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| TR01 | Transfer of patent right |