CN103738817A - Safety protection system and safety protection method for traction of elevator - Google Patents
Safety protection system and safety protection method for traction of elevator Download PDFInfo
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- CN103738817A CN103738817A CN201410006091.XA CN201410006091A CN103738817A CN 103738817 A CN103738817 A CN 103738817A CN 201410006091 A CN201410006091 A CN 201410006091A CN 103738817 A CN103738817 A CN 103738817A
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- elevator
- counterweight
- attaching parts
- limiting device
- lift car
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Abstract
The invention discloses a safety protection system and a safety protection method for the traction of an elevator. The protection system comprises an elevator car, a counter weight, a connecting element for connecting the elevator car with the counter weight, a limiter arranged close to the connecting element, and an elevator electrical control system electrically connected with the limiter. According to the safety protection system and the safety protection method disclosed by the invention, after the counter weight or the elevator car of the elevator unexpectedly halts, the continued ascending of the elevator car or the counter weight can be stopped by the limiter, so as to achieve a protection purpose. The safety protection system is simple and reliable in structure, convenient to install, and simple in debugging and maintenance.
Description
Technical field
The present invention relates to elevator technology field, particularly a kind of elevator traction safety system and method.
Background technology
In order to guarantee the safety of elevator, elevator need to be protected safely traction, and existing relevant criterion requirement, when counterweight is pressed on energy disperser and towing machine during by ascending for elevator direction rotation, can not promote unloaded car.For the safety guard-safeguard of traction, except what current required standard required, can not promote car to hazardous location, also should protect counterweight can not be promoted to hazardous location, new standard has entered on this requirement.
In order to realize the protection requirement of standard, general technical method is steel rope is skidded on traction sheave or adopt electric safety device protection.But because being difficult to realize, part elevator skids, and the situation that general electric security protector device cannot direct-detection elevator be stuck, so this problem is the technical barrier of industry.
Summary of the invention
Based on this, for the above-mentioned problem that realizes elevator traction safety guard-safeguard difficulty, the present invention proposes a kind of elevator traction safety system and method.
The present invention proposes a kind of elevator traction safety system, and its technical scheme is as follows:
An elevator traction safety system, comprises lift car, and counterweight connects the attaching parts of lift car and counterweight, is arranged near limiting device attaching parts, and with the electrical control system of elevator of limiting device electrical connection.
Elevator for tractive driving, after if the counterweight of elevator or lift car surprisingly stop, need protection lift car or counterweight can not be promoted to hazardous location, and between lift car and counterweight, there is the attaching parts being arranged in elevator hoistways, relevant position at attaching parts is provided with limiting device, limiting device can detect the lifting situation of attaching parts, when while stagnating to detect counterweight, whether lift car continues lifting or lift car stagnation, whether counterweight continues to promote, if lift car or counterweight are because the rotation of towing machine continues up, can cause the attaching parts between lift car and counterweight upwards to promote, can touch limiting device action, limiting device passes to electric control system by signal, act directly on the power equipment supply of controlling elevator drive main frame, the continuation that stops lift car or counterweight is risen, reach the object of protection.
Below its further technical scheme is described:
Preferably, limiting device comprises limiting device safety switch, limiting device safety switch is arranged in the region that attaching parts is enclosed to form, and when lift car or counterweight surprisingly stop and attaching parts integral body while upwards rising to certain position, attaching parts contacts with limiting device safety switch.Under abnormal condition, lift car or counterweight surprisingly stop, but corresponding counterweight or lift car still continue upward movement, can make the attaching parts between lift car and counterweight upwards promote, in the time that attaching parts rising to certain safety distance, will touch the limiting device safety switch action being arranged in the region that attaching parts is enclosed to form.
Preferably, when elevator normal operating condition, it is constant that the distance between limiting device safety switch and attaching parts keeps.Under normal circumstances, the lift car segment distance that rises, the counterweight identical distance that will decline, make to rise on attaching parts one end a segment distance, and its other end decline same distance, the relative position of attaching parts integral body can not change, and makes the distance of attaching parts and limiting device safety switch keep constant, and attaching parts can not touch limiting device safety switch.
Preferably, when attaching parts contact limiting device safety switch, lift car or remain static to focusing under the effect of electrical control system of elevator.It is attaching parts contact limiting device safety switch, limiting device safety switch transmission of signal is to electrical control system of elevator, electrical control system of elevator is controlled the action that elevator drive main frame power equipment supply is ended towing machine, and the anomalous behavior of lift car or counterweight is stopped.
Preferably, attaching parts is for connecting compensation rope, compensated chain or the compensated cable of described lift car and counterweight.This attaching parts has enough intensity and toughness.
In addition, the present invention also proposes a kind of elevator traction method for security protection, comprises the steps:
Lift car or counterweight surprisingly stop, and counterweight or lift car continue action;
Move the attaching parts position being connected between lift car and counterweight, touches and be arranged near the limiting device safety switch of attaching parts;
Limiting device safety switch transmission of signal is to electrical control system of elevator, and electrical control system of elevator stops the action of lift car or counterweight.
Below its further technical scheme is described:
Preferably, lift car surprisingly stops, and counterweight continues upwards to promote, and the attaching parts that band is automatically connected between lift car and counterweight moves up, and touches the limiting device safety switch that is arranged on attaching parts top.
Preferably, counterweight surprisingly stops, and lift car continues upwards to promote, band be automatically connected in lift car or and counterweight between attaching parts move up, touch the limiting device safety switch that is arranged on attaching parts top.
Preferably, limiting device safety switch transmission of signal is to electrical control system of elevator, and electrical control system of elevator is controlled the action that elevator drive main frame power equipment supply is ended towing machine, stops the action of lift car or counterweight.
The present invention has advantages of following outstanding:
1, reliable in structure: if Elevator weight sensor surprisingly stops rear lift car due to the rotation continuation lifting of towing machine, can make the attaching parts of car and counterweight promote; Equally, if lift car surprisingly stops rear counterweight due to the rotation continuation lifting of towing machine, can make the attaching parts that connects lift car and counterweight promote.And the lifting of attaching parts can be touched limit switch, make its action.Because these devices are all simple and reliable hardware, its action is all contact action, very reliable;
2, simple in structure: the appliance arrangement of employing is all simple hardware and switch, its action is all action in order after touching, and scheme is very simple;
3, easy for installation: the structures such as limiting device with limiting device safety switch of increase, be all arranged in elevator hoistways, install very convenient;
4, debugging maintenance is convenient: the electric safety device adopting in tradition, and Installation and Debugging are complicated, and the misoperation of any one signal all can cause system to be made mistakes, debug difficulties, repair and maintenance difficulty, and be simple signal switch here, when debugging and safeguarding, check and confirm all very convenient.
Accompanying drawing explanation
Fig. 1 is schematic diagram during elevator traction safety system normal condition in the embodiment of the present invention;
Fig. 2 is schematic diagram when elevator traction safety system counterweight surprisingly stops in the embodiment of the present invention;
Fig. 3 is schematic diagram when elevator traction safety system lift car surprisingly stops in the embodiment of the present invention.
Description of reference numerals:
(100,100a, 100b)-lift car, (200,200a, 200b)-counterweight, (300,300a, 300b)-attaching parts, (400,400a, 400b)-limiting device, (410,410a, 410b)-limiting device safety switch.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated.
As shown in Figure 1; the present invention proposes a kind of elevator traction safety system; comprise lift car 100; counterweight 200; this example of attaching parts 300(that connects lift car 100 and counterweight 200 is to adopt compensation rope, compensated chain or compensated cable); be arranged near the limiting device 400 attaching parts 300, and with the electrical control system of elevator (not shown) of limiting device 400 electrical connections.
Elevator for tractive driving, after if the counterweight of elevator 200 or lift car 100 surprisingly stop, need protection lift car 100 or counterweight 200 can not be promoted to hazardous location, and between lift car 100 and counterweight 200, there is the attaching parts 300 being arranged in elevator hoistways, in the relevant position of attaching parts 300, be provided with limiting device 400, limiting device 400 can detect the lifting situation of attaching parts 300, when while detecting counterweight 200 stagnation, whether lift car 100 continues lifting or lift car 100 stagnation, whether counterweight 200 is continuing lifting, if lift car 100 or counterweight 200 are because the rotation of towing machine continues up, can cause the attaching parts 300 between lift car 100 and counterweight 200 upwards to promote, will touch limiting device 400 actions, limiting device 400 passes to electric control system by signal, act directly on the power equipment supply of controlling elevator drive main frame, the continuation that stops lift car 100 or counterweight 200 is risen, reach the object of protection.
Limiting device 400 in elevator traction safety system comprises limiting device safety switch 410; limiting device safety switch 410 is arranged in the region that attaching parts 300 is enclosed to form; when lift car 100 or counterweight 200 unexpected stopping and attaching parts 300 integral body while upwards rising to certain position, attaching parts 300 contacts with limiting device safety switch 410.Under abnormal condition, lift car 100 or counterweight 200 surprisingly stop, but corresponding counterweight 200 or lift car 100 still continue upward movement, can make the whole upwards lifting of attaching parts 300 between lift car 100 and counterweight 200, in the time that attaching parts 300 rising to certain safety distance, will touch limiting device safety switch 410 actions that are arranged in the region that attaching parts 300 is enclosed to form.This safety distance can guarantee that attaching parts 300 is under elevator normal condition, even if there is the movement of certain distance, as long as no reaching this safety distance, also can not touch immediately limiting device safety switch 410, but under elevator abnormal condition, attaching parts 300 moves to this safety distance just can touch limiting device safety switch 410 immediately.
Elevator is when normal operating condition, and it is constant that the distance between limiting device safety switch 410 and attaching parts 300 keeps.Under normal circumstances, lift car 100 rising one segment distances, the counterweight 200 identical distance that will decline, make to rise a segment distance on attaching parts 300 one end, and its other end decline same distance, the relative position of attaching parts 300 integral body can not change, and makes attaching parts 300 and the distance of limiting device safety switch 410 keep constant, and attaching parts 300 can not touch limiting device safety switch 410.
Preferably, limiting device safety switch 410 is arranged in the region that attaching parts 300 lower end arc curves are partly enclosed to form.Limiting device safety switch 410 is arranged in this region, under abnormal condition, can makes near the more convenient attaching parts 300 rising near limiting device 400 that effectively touches of limiting device safety switch 410.Not only make limiting device safety switch 410 and attaching parts 300 keep a rational safety distance, and limiting device safety switch 410 is arranged on a suitable position, so that can effectively touch limiting device safety switch 410 after attaching parts 300 moves to safety distance.Limiting device safety switch 410 is arranged on to this position, makes limiting device safety switch 410 touch near the attaching parts 300 rising near limiting device 400 by more convenient actv..In addition, limiting device safety switch 410 can be arranged on other positions in the region that attaching parts 300 is enclosed to form, as near the position of lift car 100, near position or the position between lift car 100 and counterweight 200 of counterweight 200, but prerequisite is the position that can effectively touch limiting device safety switch 410 be all positioned at attaching parts 300 and rise to safety distance time.
The attaching parts 300 that connects lift car 100 and counterweight 200 can be compensation rope, compensated chain or compensated cable and other line type structures of similarly restricting.This attaching parts 300 has enough intensity and toughness.
And elevator traction method for security protection is as follows:
When lift car 100 or counterweight 200 is unexpected, stop (for example mechanical stuck), and counterweight 200 or lift car 100 are because the rotation of towing machine continues action; Move attaching parts 300 positions that are connected between lift car 100 and counterweight 200, touches and be arranged near the limiting device safety switch 410 of attaching parts 300; Limiting device safety switch 410 transmission of signals are to electrical control system of elevator, and electrical control system of elevator stops the action of lift car 100 or counterweight 200, play the effect of protection.
Under normal circumstances, it is synchronous that the sport of lift car 100 and counterweight 200 keeps, and makes to remain certain distance between attaching parts 300 and limiting device safety switch 410, and can not trigger limiting device safety switch 410, do not move.
But in one case, as shown in Figure 2, for example, when counterweight 200a surprisingly stops (mechanical stuck or be pressed on energy disperser and stop), lift car 100a continues upwards to promote, the attaching parts 300a that band is automatically connected between lift car 100a and counterweight 200a moves up, shake-up is arranged on the limiting device safety switch 410a of attaching parts 300a top, limiting device safety switch 410a transmission of signal is to electrical control system of elevator, electrical control system of elevator is controlled the action that elevator drive main frame power equipment supply is ended towing machine, the machinery that stops lift car 100a rises, reach the object of protection.
In another case; as shown in Figure 3; for example, when lift car 100b surprisingly stops (mechanical stuck); counterweight 200b continues upwards to promote; the attaching parts 300b integral body that band is automatically connected between lift car 100b and counterweight 200b moves up; shake-up is arranged on the limiting device safety switch 410b of attaching parts 300b top; limiting device safety switch 410b transmission of signal is to electrical control system of elevator; electrical control system of elevator is controlled the action that elevator drive main frame power equipment supply is ended towing machine; the continuation that stops counterweight 200b is risen, and reaches the object of protection.
The above embodiment has only expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (8)
1. an elevator traction safety system, is characterized in that, comprises lift car; counterweight; the attaching parts that connects described lift car and counterweight, is arranged near the limiting device described attaching parts, and with the electrical control system of elevator of described limiting device electrical connection.
2. elevator traction safety system according to claim 1; it is characterized in that; described limiting device comprises limiting device safety switch; described limiting device safety switch is arranged in the region that described attaching parts is enclosed to form; when lift car or counterweight surprisingly stop and attaching parts integral body while upwards rising to certain position, described attaching parts contacts with limiting device safety switch.
3. elevator traction safety system according to claim 2, is characterized in that, when elevator normal operating condition, it is constant that the distance between described limiting device safety switch and described attaching parts keeps.
4. according to the elevator traction safety system described in claim 1-3, it is characterized in that, when described attaching parts contacts described limiting device safety switch, described lift car or remain static to focusing under the effect of described electrical control system of elevator.
5. an elevator traction method for security protection, is characterized in that, comprises the steps:
Lift car or counterweight surprisingly stop, and counterweight or lift car continue action;
Move the attaching parts position being connected between lift car and counterweight, touches and be arranged near the limiting device safety switch of attaching parts;
Limiting device safety switch transmission of signal is to electrical control system of elevator, and electrical control system of elevator stops the action of lift car or counterweight.
6. elevator traction method for security protection according to claim 5; it is characterized in that, lift car surprisingly stops, and counterweight continues upwards to promote; the attaching parts that band is automatically connected between lift car and counterweight moves up, and touches the limiting device safety switch that is arranged on attaching parts top.
7. elevator traction method for security protection according to claim 5; it is characterized in that, counterweight surprisingly stops, and lift car continues upwards to promote; band be automatically connected in lift car or and counterweight between attaching parts move up, touch the limiting device safety switch be arranged on attaching parts top.
8. according to the elevator traction method for security protection described in claim 5-7 any one; it is characterized in that; limiting device safety switch transmission of signal is to electrical control system of elevator; electrical control system of elevator is controlled the action that elevator drive main frame power equipment supply is ended towing machine, stops the action of lift car or counterweight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410006091.XA CN103738817B (en) | 2014-01-06 | 2014-01-06 | Elevator traction safety protection system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410006091.XA CN103738817B (en) | 2014-01-06 | 2014-01-06 | Elevator traction safety protection system and method |
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| Publication Number | Publication Date |
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| CN103738817A true CN103738817A (en) | 2014-04-23 |
| CN103738817B CN103738817B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410006091.XA Active CN103738817B (en) | 2014-01-06 | 2014-01-06 | Elevator traction safety protection system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240045A (en) * | 2019-05-27 | 2019-09-17 | 上海三菱电梯有限公司 | A kind of elevator device |
| CN114933222A (en) * | 2022-06-06 | 2022-08-23 | 日立电梯（中国）有限公司 | Compensation chain guiding device for coping with retention working condition of elevator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09290981A (en) * | 1996-04-26 | 1997-11-11 | Hitachi Building Syst Co Ltd | Tail code device for oblique elevator |
| CN201678335U (en) * | 2010-04-01 | 2010-12-22 | 江南嘉捷电梯股份有限公司 | Tensioning device of elevator compensation rope |
| CN202186809U (en) * | 2011-06-29 | 2012-04-11 | 苏州中威法奥电梯有限公司 | Elevator compensating system |
| CN202744141U (en) * | 2012-07-23 | 2013-02-20 | 杭州西奥电梯有限公司 | Anti-deflection compensatory steel wire rope tensioning device |
| CN103086221A (en) * | 2012-11-19 | 2013-05-08 | 江南嘉捷电梯股份有限公司 | Extension protecting structure for hoisting rope of elevator |
-
2014
- 2014-01-06 CN CN201410006091.XA patent/CN103738817B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09290981A (en) * | 1996-04-26 | 1997-11-11 | Hitachi Building Syst Co Ltd | Tail code device for oblique elevator |
| CN201678335U (en) * | 2010-04-01 | 2010-12-22 | 江南嘉捷电梯股份有限公司 | Tensioning device of elevator compensation rope |
| CN202186809U (en) * | 2011-06-29 | 2012-04-11 | 苏州中威法奥电梯有限公司 | Elevator compensating system |
| CN202744141U (en) * | 2012-07-23 | 2013-02-20 | 杭州西奥电梯有限公司 | Anti-deflection compensatory steel wire rope tensioning device |
| CN103086221A (en) * | 2012-11-19 | 2013-05-08 | 江南嘉捷电梯股份有限公司 | Extension protecting structure for hoisting rope of elevator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240045A (en) * | 2019-05-27 | 2019-09-17 | 上海三菱电梯有限公司 | A kind of elevator device |
| CN114933222A (en) * | 2022-06-06 | 2022-08-23 | 日立电梯（中国）有限公司 | Compensation chain guiding device for coping with retention working condition of elevator |
| CN114933222B (en) * | 2022-06-06 | 2024-02-06 | 日立电梯（中国）有限公司 | Compensation chain guiding device for coping with elevator detention working condition |
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| Publication number | Publication date |
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| CN103738817B (en) | 2017-03-15 |
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