CN202390047U - Safety protection device of elevator speed limiting device - Google Patents
Safety protection device of elevator speed limiting device Download PDFInfo
- Publication number
- CN202390047U CN202390047U CN2011205578861U CN201120557886U CN202390047U CN 202390047 U CN202390047 U CN 202390047U CN 2011205578861 U CN2011205578861 U CN 2011205578861U CN 201120557886 U CN201120557886 U CN 201120557886U CN 202390047 U CN202390047 U CN 202390047U
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- CN
- China
- Prior art keywords
- signal
- wheel
- elevator
- velocity limiter
- limiting device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses a safety protection device of an elevator speed limiting device. A signal transmitter transmits a signal, a signal receiver can not receive the signal if the signal is blocked by a web, the signal receiver can receive the signal transmitted by the signal transmitter only through an interval between adjacent two webs, a running speed of a speed limiting device can reflect through the frequency of the signal received by the signal receiver, and a control system detects the frequency of the signal received by the signal receiver and calculates and judges an instant speed of a speed limiting device wheel according to the frequency; once the instant speed of the speed limiting device wheel is over a range of +/-5% of an instant running speed of an elevator, for example, when a rotary shaft is broken or a bearing is locked to cause the speed limiting device is locked and is of failure, the control system transmits an elevator running signal, immediately stops the elevator, ensures the safety performance of the elevator, and prevents a situation that a pair of safety tongs generates error operation because a speed limiting device wire rope generates a force for lifting a pair of safety tongs due to the blockage of the speed limiting device wheel, or prevents a situation that the safety tongs can not be triggered to operate because the wire rope slides in a speed limiting device wheel rope slot when an elevator is overspeed due to a certain reason.
Description
Technical field
the utility model 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 the utility model 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 utility model 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 utility model 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.
Description of drawings
Accompanying drawing 1 is the scheme drawing of the utility model;
accompanying drawing 2 is the front schematic view of velocity limiter wheel in the utility model.
The specific embodiment
The structure of the utility model is further set forth in
below in conjunction with accompanying drawing.
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 |
|---|---|---|---|
| CN2011205578861U CN202390047U (en) | 2011-12-28 | 2011-12-28 | Safety protection device of elevator speed limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205578861U CN202390047U (en) | 2011-12-28 | 2011-12-28 | Safety protection device of elevator speed limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202390047U true CN202390047U (en) | 2012-08-22 |
Family
ID=46664987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205578861U Expired - Lifetime CN202390047U (en) | 2011-12-28 | 2011-12-28 | Safety protection device of elevator speed limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202390047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514995A (en) * | 2011-12-28 | 2012-06-27 | 江南嘉捷电梯股份有限公司 | Safety protection device for elevator speed limiter |
| CN113003348A (en) * | 2021-02-23 | 2021-06-22 | 湖北特种设备检验检测研究院 | Elevator speed limiter and elevator safety system |
-
2011
- 2011-12-28 CN CN2011205578861U patent/CN202390047U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514995A (en) * | 2011-12-28 | 2012-06-27 | 江南嘉捷电梯股份有限公司 | Safety protection device for elevator speed limiter |
| CN102514995B (en) * | 2011-12-28 | 2014-08-06 | 江南嘉捷电梯股份有限公司 | Safety protection device for elevator speed limiter |
| CN113003348A (en) * | 2021-02-23 | 2021-06-22 | 湖北特种设备检验检测研究院 | Elevator speed limiter and elevator safety system |
| CN113003348B (en) * | 2021-02-23 | 2022-02-08 | 湖北特种设备检验检测研究院 | Elevator speed limiter and elevator safety system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120822 Effective date of abandoning: 20140806 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20120822 Effective date of abandoning: 20140806 |
|
| RGAV | Abandon patent right to avoid regrant |