CN104058309B - A kind of electric safety return circuit of elevator redundancy and stop control method - Google Patents
A kind of electric safety return circuit of elevator redundancy and stop control method Download PDFInfo
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- CN104058309B CN104058309B CN201410283111.8A CN201410283111A CN104058309B CN 104058309 B CN104058309 B CN 104058309B CN 201410283111 A CN201410283111 A CN 201410283111A CN 104058309 B CN104058309 B CN 104058309B
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Abstract
The invention discloses the electric safety return circuit of a kind of elevator redundancy, comprise first group of switch, second group of switch, the 3rd group of switch and the 4th group of switch, by increase the 3rd group of switch and the 4th group of switch in traditional safety return circuit, can ensure in the time that elevator breaks down, guaranteeing, under elevator safety prerequisite, to evacuate timely and effectively trapped personnel, thereby improving elevator reliability of operation, reduce the injury again that elevator faults causes, further ensure passenger safety. The invention also discloses a kind of elevator stopping method, the method, ensureing, on the basis of elevator safety operation, to discharge as early as possible passenger in car, can reduce elevator malfunction rate effectively, improves elevator operational reliability simultaneously.
Description
Technical field
The present invention relates to a kind of lift circuit, the particularly electric safety return circuit of a kind of elevator redundancy relates to a kind of according to electricity simultaneouslyA kind of elevator stopping method of the electric safety return circuit of ladder redundancy.
Background technology
In recent years, rapidly, the situation that breaks down is a lot of for China's elevator industry development. In general, elevator faults causes personnel to hinderThe probability of dying is very low, but easily passenger is trapped in car, do not meet people to elevator operational reliability, find fault andShi Xing, save the rapid degree of stranded passenger, solve the requirements at the higher level such as fault convenience and validity. According to incompletely statistics, 2013Year Guangzhou elevator malfunction event occurs 16.7 average every day; In 2012, there is nearly thousand of elevator malfunction events in Xiamen City; 2013On June 5, in, Shanghai New World mall, 30 multi-section elevators have 10 multi-section elevators to occur oppressive event simultaneously; At present, Changsha, in recent years there are oppressive event more than 500 times in 40,000 of elevator total amounts. In the time of Lift out of order, especially same community has someWhen elevator breaks down simultaneously, rescue personnel is difficult to the passenger in every elevator to succour in time, and passenger is stranded too for a long timeBe easy to accidents causedly, for example just there is this type of accident in Chongqing City the beginning of this year, causes a passenger unfortunately to die. Therefore,What how to avoid elevator malfunction accident is a very important problem.
Apparatus for controlling elevator can be divided into electric drive system and two major parts of electric control system substantially. Electric Traction systemSystem mainly comprises elevator motor and gate switch door operation drive circuit. Electric control system peripheral hardware comprises interior choosing and outgoing callCall button, floor sensors, door system electric safety switch, safety device switch etc., control section comprises as 32The core parts compositions such as CPU, control relay, communication function plate.
Typical electrical control system of elevator block diagram as shown in Figure 1, mainly by drive system, control system, electrical safety loop,The compositions such as the interior operation panel of car, leveling device. What wherein drive system completed is that traction machine drives function; Control system completesBeing elevator control and management function communication function responsible and elevator peripheral circuit, is the core of whole apparatus for controlling elevator; ElectricityGas safety return circuit is that the switch series of all safety components of elevator is associated in a loop, when all safety component switches are all in connecingIn logical situation, safety relay could adhesive, ensures that elevator machine and electric device are all in the time of safe and effective state, elevatorCould obtain electric operation.
In the time that elevator normally moves, apparatus for controlling elevator breaks down suddenly or break down suddenly in electrical safety loop all can leadSend a telegraph ladder out of service immediately, only have elevator after fault is eliminated again to put into operation, this is also that oppressive thing occurs elevatorTwo main causes of part. At present, still do not have effective means to prevent the generation of the oppressive event that stops causing because of elevator faults.
Summary of the invention
In view of this, the object of this invention is to provide a kind of elevator redundant safety loop, can ensure in the time that elevator breaks down,Guarantee, under elevator safety prerequisite, to evacuate timely and effectively trapped personnel, thereby improve elevator reliability of operation, reduce elevator eventThe injury again that barrier causes, further ensures passenger safety, and the present invention simultaneously also provides a kind of stop method of elevator.
One of object of the present invention is achieved through the following technical solutions, and the electric safety return circuit of a kind of elevator redundancy comprisesOne group of switch and second group of switch, described first group of switch comprises each layer of door switch, the first safety relay and a CPU, instituteState second group of switch and comprise security window switch, expansion tightening wheel switch, pit buffer switch, the second safety relay and the 2nd CPU;Also comprise the first selector switch, the second selector switch, the 3rd group of switch and the 4th group of switch, described the 3rd group of switch comprises hypervelocityProtection switch, emergency stop switch, safety gear switch, handwheel switch, governor switch, gate switch, the 3rd safe relayDevice and the 3rd CPU, described the 4th group of switch comprises limes superiors switch, limit inferior switch, the 4th safety relay and the 4th CPU;A wherein static contact of described the first selector switch is connected with the moving contact of the second selector switch, another of described the first selector switchStatic contact is connected with two static contacts of the second selector switch; Another static contact of described the first selector switch connect successively emergency stop switch,Overspeed protection switch, safety gear switch, expansion tightening wheel switch, gate switch, handwheel switch and governor switch, described limitSpeed device switch is through the 3rd safety relay ground connection, and described the 3rd CPU controls the break-make of the 3rd safety relay; Described speed-limiting switch,Limit inferior switch, limes superiors switch connect successively, and described limes superiors switch is through the 4th safety relay ground connection, described the 4th CPUControl the break-make of the 4th safety relay; Described security window switch is through the 4th safety relay ground connection, described security window switch, the endHole buffer switch, Room door switch connect successively, and described Room door switch is through the first safety relay ground connection, and a described CPU is controlledThe break-make of system the first peace relay; The link of described Room door switch and pit buffer switch is through the second safety relay ground connection,Described the 2nd CPU controls the break-make of the second safety relay.
Further, described emergency stop switch comprises the sedan-chair top emergency stop switch, pit emergency stop switch and the control flow emergency stop switch that connect successively,Described control flow guard's valve is connected with overspeed protection switch.
Further, described Room door switch comprises the N layer Room door switch connecting successively, and N layer Room door switch is through the first safe relayDevice ground connection.
Two of object of the present invention is achieved through the following technical solutions, a kind of elevator stopping method, and the method is specially:
1) in the time that the 3rd group of switch breaks down, stop elevator immediately;
2) in the time that the 4th group of switch breaks down,
In the time that limes superiors switch breaks down: when 1. elevator traffic direction is downward, elevator continues to move to nearest stop stop and releasesPut passenger in railway carriage or compartment; 2. elevator traffic direction is upwards time, if when elevator is now between K-1 layer and K layer, and in the time of M≤K-1,Elevator continues to move to after nearest stop stop and discharges passenger in railway carriage or compartment; When K-1 < M≤K elevator inverted running layer extremely recently immediatelyThe stop of standing also discharges passenger in railway carriage or compartment;
Instantly when limit switch breaks down: 1. elevator traffic direction is upwards time, and elevator continues to move to nearest stop stop and releasesPut passenger in railway carriage or compartment; 2., when elevator traffic direction is downward, in the time of M >=2, elevator continues to move to nearest stop and discharges passenger in railway carriage or compartment;Otherwise elevator immediately inverted running to nearest stop stop and discharge passenger in railway carriage or compartment;
3) in the time that first group of switch breaks down,
If N=M, elevator stop discharge passenger in railway carriage or compartment immediately;
In the time that elevator is descending, as N>M or N<M-1, elevator continues come downwards to nearest floor stop and discharge railway carriage or compartment with inspection speedInterior passenger; As M > N > elevator continues the descending fault floor that can pass through when M-1, elevator immediately inverted running to nearest stop stopAnd discharge passenger in railway carriage or compartment;
In the time of ascending for elevator, as N<M or N>M+1, elevator continues go upward to nearest stop stop and discharge railway carriage or compartment with inspection speedInterior passenger; As M < N < M+1, elevator oppositely moves to nearest stop stop and discharges passenger in railway carriage or compartment with inspection speed immediately;
4), in the time that second group of switch breaks down, elevator continues to move to nearest stop stop and discharges passenger in railway carriage or compartment;
K is the total number of plies of elevator, and N is fault Room door stop, and M is the real-time stop of elevator.
Useful technique effect:
1, the present invention can ensure in the time that elevator breaks down, and is guaranteeing, under elevator safety prerequisite, to evacuate timely and effectively trapped personnel,Thereby improve elevator reliability of operation, reduce the injury again that elevator faults causes, further ensure passenger safety.
2, the present invention proposes elevator stopping method, is ensureing, on the basis of elevator safety operation, to discharge as early as possible passenger in car, energyEnough elevator malfunction rates that effectively reduces, improve elevator operational reliability, avoid larger security incident and economic loss, have wideGeneral actual use value.
Brief description of the drawings
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is done furtherDescribe in detail, wherein:
Fig. 1 is typical electrical control system of elevator block diagram;
Fig. 2 is electrical safety loop electric diagram;
Fig. 3 is elevator stopping method flow diagram of the present invention.
Detailed description of the invention
Below with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail; Should be appreciated that preferred embodiment is onlyExplanation the present invention, instead of in order to limit the scope of the invention.
For ensureing that elevator can move safely, many safety components are housed on elevator. So-called electrical safety loop, be exactlyThe corresponding safety component of elevator is all equipped with safety switch, only have when all safety switches all connect in the situation that, safety relayAdhesive, elevator just possesses the condition of operation. In the safety return circuit of traditional elevator, only have first group of switch and second group of switch.
The reliability of elevator electrical safety circuit switching is subject to the impact of the factors such as the quality of switch own, running environment, maintenance adjustment realThe probability breaking down in the running of border exists, and arbitrary switch contact action in traditional electrical safety loop, electricityLadder just will be in halted state, causes elevator malfunction rate high. In order to reduce the oppressive rate of passenger, introduce electrical safety loopRedundancy protecting design, as shown in Figure 2.
The electric safety return circuit of a kind of elevator redundancy, comprises first group of switch and second group of switch, and described first group of switch comprises each layerEntrance hall switch 14, the first safety relay I and a CPU, described second group of switch comprises security window switch 12, expansion tightening wheelSwitch 6, pit buffer switch 13, the second safety relay II and the 2nd CPU; Also comprise the first selector switch S1,Two selector switch S2, the 3rd group of switch and the 4th group of switch, described the 3rd group of switch comprise overspeed protection switch 4, emergency stop switch,Safety gear switch 5, handwheel switch 8, governor switch 9, gate switch 7, the 3rd safety relay III and the 3rd CPU,Described the 4th group of switch comprises limes superiors switch 11, limit inferior switch 10, the 4th safety relay IV and the 4th CPU; DescribedThe one static contact of the first selector switch is connected with the moving contact of the second selector switch, another static contact of described the first selector switchBe connected with two static contacts of the second selector switch; Another static contact of described the first selector switch connect successively emergency stop switch, hypervelocityProtection switch, safety gear switch, expansion tightening wheel switch, gate switch, handwheel switch and governor switch, described limiter of speedSwitch is through the 3rd safety relay ground connection, and described the 3rd CPU controls the break-make of the 3rd safety relay; Described speed-limiting switch, underLimit switch, limes superiors switch connect successively, and described limes superiors switch is through the 4th safety relay ground connection, and described the 4th CPU is controlledMake the break-make of the 4th full peace relay; Described security window switch is through the 4th safety relay ground connection, described security window switch, pitBuffer switch, Room door switch connect successively, and described Room door switch is through the first safety relay ground connection, and a described CPU controlsThe break-make of the first safety relay; The link of described Room door switch and pit buffer switch is through the second safety relay ground connection,Described the 2nd CPU controls the break-make of the second safety relay; Described emergency stop switch comprise successively the sedan-chair top emergency stop switch 1 that connects,Pit emergency stop switch 2 and control flow emergency stop switch 3, described control flow guard's valve is connected with overspeed protection switch; Described Room door is openedPass comprises the N layer Room door switch connecting successively, and N layer Room door switch is through the first safety relay ground connection.
If wherein the 3rd group of switch once motion continuation operation may cause device damage, after this group switch motion, elevator need to standBe stop, to avoid catastrophic effect; The 4th group of switch comprises limes superiors switch and limit inferior switch, mainly prevents elevator punchingTop or the crouching end, therefore, in the time of this switch motion, can carry out urgent electric operation in order to evacuate in time passenger; First group of switch bagDraw together each layer of door switch, such switch motion may be that a quilt is opened in addition on the one hand, or due to door switch loose contact, for anti-Only external staff was sheared by car and causes injures and deaths in the moment of opening the door, and should selectively control car to rerun; Second group of switch purportProtection and be convenient to succour passenger in elevator in the time of elevator faults, but elevator is while normally moving, and this group switch motion can not cause and causeElevator operation exception and casualties, therefore, can control elevator and continue to move to stop after nearest safe stop.
By the introduction to above-mentioned elevator safety switch grouping feature, after fault occurs, control system is according to physical fault classificationSelect appropriate stop scheme, as shown in Figure 3.
Suppose that the total number of plies of elevator is K (integer), fault Room door stop is N (integer), and the real-time stop of elevator is M (arithmetic number),?
1), when I group switch breaks down, stop elevator immediately, waits for rescue personnel.
2) when II group switch breaks down,
In the time that limes superiors switch breaks down: when 1. elevator traffic direction is downward, elevator can not be rushed to summit, elevator continues operationExtremely nearest stop stop also discharges passenger in railway carriage or compartment; 2. elevator traffic direction is upwards time, if elevator be now in K-1 layer and K layer itBetween time, continue upwards operation and just may rush to summit, therefore in the time of M≤K-1, elevator continues to move to stop after nearest stopAnd discharge passenger in railway carriage or compartment; When K-1 < M≤K elevator immediately inverted running to nearest stop stop and discharge passenger in railway carriage or compartment.
Instantly, when limit switch breaks down: 1. elevator traffic direction is upwards time, and elevator can not be squatted at the end, elevator can continue fortuneWalk to nearest stop stop and discharge passenger in railway carriage or compartment; 2. when elevator traffic direction is downward, if elevator is now in below the second stopTime, continue operation downwards and just may squat at the end, therefore, in the time of M >=2, elevator continues to move in nearest stop release railway carriage or compartment to be taken advantage ofVisitor; Otherwise elevator immediately inverted running to nearest stop stop and discharge passenger in railway carriage or compartment.
3) when III group switch breaks down,
If N=M, elevator stop discharge passenger in railway carriage or compartment immediately.
In the time that elevator is descending, as N>M or N<M-1, elevator continues to come downwards in the process of nearest stop and can not pass through faultFloor, therefore, can control elevator and continue come downwards to nearest floor stop and discharge passenger in railway carriage or compartment with inspection speed; As M > N > M-1Time elevator continue the descending fault floor that can pass through, the casualty accident that easily meets accident, therefore elevator need immediately oppositely with overhaulSpeed moves to nearest stop stop and discharges passenger in railway carriage or compartment.
In the time of ascending for elevator, as N<M or N>M+1, elevator continue to go upward in the process at nearest floor station can through thereforeBarrier floor, therefore, can control elevator and continue go upward to nearest stop stop and discharge passenger in railway carriage or compartment with inspection speed; AsM < N < M+1, elevator continues to go upward in the process at nearest floor station and can not pass through fault floor, and elevator is immediately oppositely with maintenanceSpeed moves to nearest stop stop and discharges passenger in railway carriage or compartment.
4) in the time that IV group switch breaks down, elevator continues to move to nearest stop stop and discharges passenger in railway carriage or compartment.
In addition,, after Lift out of order, before maintenance personal fixes a breakdown hand-reset, do not respond calling signal; Work as faultAfter generation, need automatically report comfort voice messaging to passenger in railway carriage or compartment, avoid passenger because meeting accident in a hurry.
The electric safety return circuit of redundancy is higher to processor computing capability and logic synthesis Capability Requirement. Taking the elevator of 18 stops asExample, ascending for elevator, in the time that elevator is between 10 layers and 11 layers, 11 layers of Room door break down. This Time Controller starts electricityLadder carries out emergent control, and first interim stop elevator, confirms as the door system fault of 11 layers, automatically plays to passenger in railway carriage or compartment simultaneouslyThe follow-up urgent running of voice message; Then elevator comes downwards to 10 layers, opens gate and Room door, discharges passenger in car, withTime locked elevator, cut off host power supply, do not respond any calling signal, wait for maintenance personal manually recover; If this elevator faultsThe not gate system failure, but safety gear switch is while breaking down, in order to ensure passenger safety, elevator is stop immediately, cuts off main framePower supply, waits for maintenance personal's rescue.
According to redundant safety electric loop fault type, system controller is taked different emergent management schemes, avoids electricity in the pastOnce air circuit has the simple way of fault with regard to stop elevator, can reduce greatly elevator malfunction rate, particularly at a large amount of elevatorsWhile breaking down, maintenance personal can judge which elevator faults is that I class fault needs emergency relief simultaneously, thereby greatly improvesElevator is rescued people's promptness, avoids causing larger casualty accident and economic loss.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, obviously, those skilled in the art canSo that being carried out to various changes and modification, the present invention do not depart from the spirit and scope of the present invention. Like this, if of the present invention these repairWithin changing and belonging to the scope of the present invention and equivalent technologies thereof with modification, the present invention be also intended to comprise these change and modification interior.
Claims (4)
1. the electric safety return circuit of elevator redundancy, comprises first group of switch and second group of switch, and described first group of switch comprises each layerDoor switch, the first safety relay and a CPU, described second group of switch comprises security window switch, expansion tightening wheel switch, the endHole buffer switch, the second safety relay and the 2nd CPU; It is characterized in that: also comprise the first selector switch, the second choosingSelect switch, the 3rd group of switch and the 4th group of switch, described the 3rd group of switch comprises overspeed protection switch, emergency stop switch, safety tongsSwitch, handwheel switch, governor switch, gate switch, the 3rd safety relay and the 3rd CPU, described the 4th groupSwitch comprises limes superiors switch, limit inferior switch, the 4th safety relay and the 4th CPU; Its of described the first selector switchIn a static contact be connected with the moving contact of the second selector switch, another static contact of described the first selector switch and the second selector switchTwo static contacts connect; Another static contact of described the first selector switch connect successively emergency stop switch, overspeed protection switch, safetyClamp switch, expansion tightening wheel switch, gate switch, handwheel switch and governor switch, described governor switch is through the 3rd safetyRelay ground connection, described the 3rd CPU controls the break-make of the 3rd safety relay; Described speed-limiting switch, limit inferior switch, onLimit switch connects successively, and described limes superiors switch is through the 4th safety relay ground connection, and described the 4th CPU controls the 4th safetyThe break-make of relay; Described security window switch is through the 4th safety relay ground connection, described security window switch, pit buffer switch,Room door switch connects successively, and described Room door switch is through the first safety relay ground connection, and a described CPU controls the first peace relayThe break-make of device; The link of described Room door switch and pit buffer switch is through the second safety relay ground connection, described the 2nd CPUControl the break-make of the second safety relay.
2. the electric safety return circuit of a kind of elevator redundancy according to claim 1, is characterized in that: described emergency stop switch comprises complies withSedan-chair top emergency stop switch, pit emergency stop switch and the control flow emergency stop switch of inferior connection, described control flow guard's valve and overspeed protection are openedClose and connect.
3. the electric safety return circuit of a kind of elevator redundancy according to claim 1, is characterized in that: described Room door switch comprises complies withThe N layer Room door switch of inferior connection, N layer Room door switch is through the first safety relay ground connection.
4. carry out elevator stopping control method according to electrical safety loop described in claim 1-3 any one, it is characterized in that:
1) in the time that the 3rd group of switch breaks down, stop elevator immediately;
2) in the time that the 4th group of switch breaks down,
In the time that limes superiors switch breaks down: when 1. elevator traffic direction is downward, elevator continues to move to nearest stop stop and releasesPut passenger in railway carriage or compartment; 2. elevator traffic direction is upwards time, if when elevator is now between K-1 layer and K layer, and in the time of M≤K-1,Elevator continues to move to after nearest stop stop and discharges passenger in railway carriage or compartment; When K-1 < M≤K elevator inverted running layer extremely recently immediatelyThe stop of standing also discharges passenger in railway carriage or compartment;
Instantly when limit switch breaks down: 1. elevator traffic direction is upwards time, and elevator continues to move to nearest stop stop and releasesPut passenger in railway carriage or compartment; 2., when elevator traffic direction is downward, in the time of M >=2, elevator continues to move to nearest stop and discharges passenger in railway carriage or compartment;Otherwise elevator immediately inverted running to nearest stop stop and discharge passenger in railway carriage or compartment;
3) in the time that first group of switch breaks down,
If N=M, elevator stop discharge passenger in railway carriage or compartment immediately;
In the time that elevator is descending, as N>M or N<M-1, elevator continues come downwards to nearest floor stop and discharge railway carriage or compartment with inspection speedInterior passenger; As M > N > elevator continues the descending fault floor that can pass through when M-1, elevator immediately inverted running to nearest stop stopAnd discharge passenger in railway carriage or compartment;
In the time of ascending for elevator, as N<M or N>M+1, elevator continues go upward to nearest stop stop and discharge railway carriage or compartment with inspection speedInterior passenger; As M < N < M+1, elevator oppositely moves to nearest stop stop and discharges passenger in railway carriage or compartment with inspection speed immediately;
4), in the time that second group of switch breaks down, elevator continues to move to nearest stop stop and discharges passenger in railway carriage or compartment;
K is the total number of plies of elevator, and N is fault Room door stop, and M is the real-time stop of elevator.
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| CN201410283111.8A CN104058309B (en) | 2014-06-23 | 2014-06-23 | A kind of electric safety return circuit of elevator redundancy and stop control method |
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| CN201410283111.8A CN104058309B (en) | 2014-06-23 | 2014-06-23 | A kind of electric safety return circuit of elevator redundancy and stop control method |
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| CN104058309B true CN104058309B (en) | 2016-05-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105253737B (en) * | 2015-11-27 | 2017-10-31 | 沈阳市蓝光自动化技术有限公司 | A kind of guard method of accidental movement of elevator cage |
| CN105438911A (en) * | 2016-01-08 | 2016-03-30 | 西继迅达（许昌）电梯有限公司 | Elevator capable of preventing elevator car from moving accidently |
| CN106829676B (en) * | 2017-02-22 | 2019-05-17 | 西继迅达（许昌）电梯有限公司 | A kind of detection of accidental movement of elevator cage and protection system |
| CN107128765B (en) * | 2017-06-13 | 2020-11-03 | 重庆市特种设备检测研究院 | Fault-tolerant control method and system for elevator in trapped state |
| CN115402895A (en) | 2021-05-28 | 2022-11-29 | 奥的斯电梯公司 | Band-type brake monitoring circuit system, elevator system and band-type brake monitoring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2052402U (en) * | 1988-02-11 | 1990-02-07 | 浙江省苍南县仪表三厂 | Safety device for cages kick-up block |
| CN1048681A (en) * | 1990-09-07 | 1991-01-23 | 郑国基 | Elevator faults and power failure flat-layer technique and equipment |
| DE19849238C1 (en) * | 1998-10-26 | 2000-03-09 | O & K Rolltreppen Gmbh | Safety cut-out method for escalator or moving walkway has safety fault signals provided by safety chain combined with drive monitoring signals for operation of drive cut-out contacts |
| DE50205296D1 (en) * | 2001-09-18 | 2006-01-19 | Inventio Ag | SECURITY CIRCUIT FOR LIFTING DOORS |
| CN100383029C (en) * | 2004-08-24 | 2008-04-23 | 陈金林 | Lift controller and control method |
| CN203877683U (en) * | 2014-06-23 | 2014-10-15 | 重庆市特种设备检测研究院 | Elevator redundant electrical safety circuit |
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