CN110526048A - A kind of strong control method and system for driving elevator - Google Patents
A kind of strong control method and system for driving elevator Download PDFInfo
- Publication number
- CN110526048A CN110526048A CN201910730599.7A CN201910730599A CN110526048A CN 110526048 A CN110526048 A CN 110526048A CN 201910730599 A CN201910730599 A CN 201910730599A CN 110526048 A CN110526048 A CN 110526048A
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- elevator
- speed
- limiter
- contactor
- control signal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/048—Testing of overspeed governor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
A kind of strong control method for driving elevator, it include: the movement for monitoring limiter of speed, judge whether limiter of speed malfunctions, when judging that limiter of speed malfunctions, output control signal, to prevent the execution of elevator device maloperation, wherein, the maloperation is caused by the malfunction of limiter of speed, according to the operation of preset logic control elevator.Pass through the monitoring acted to limiter of speed, the information of limiter of speed malfunction is obtained in real time, and when limiter of speed malfunctions, output control signal prevents the execution of maloperation, limiter of speed is avoided to malfunction and stop elevator, reducing influences elevator impact force brought by stop elevator, and improves the usage experience of user.
Description
Technical field
The present invention relates to field of elevator control, and in particular to a kind of strong control method and system for driving elevator.
Background technique
In recent years, with the development of China's economic, elevator is had obtained relatively broad application, and elevator is one kind with motor
For the vertical conveyor of power, box-like gondola is housed, multiplies people or carrying cargo for tier building.The driving method of elevator is draged
Draw formula and strong drive formula, traction elevator is mainly by traction machine (winch), guide rail, counterweight, safety device (such as limiter of speed, peace
Full pincers and buffer etc.), signal manipulation system, carriage and hall door etc. form, these parts are separately mounted to the hoistway of building
In computer room.Wire Friction Driving is generallyd use, wirerope bypasses traction sheave, and both ends are separately connected carriage and balance weight, electricity
Motivation driving traction sheave goes up and down carriage.Strong drive formula elevator essentially consists in the strong villa elevator that drives with traction elevator difference of them
There is no counterweight, working principle is similar to hoist engine, not to resurveying, its advantage is that hoistway resource can be saved.In villa
Generally elevator is driven using strong.
The limiter of speed and safety tongs of elevator occur and use in pairs, and effect is once elevator overload occurs, skids, is disconnected
It restricts, control phenomena such as out of control, then limiter of speed acts safety tongs, and carriage is tightly stuck between the guide rail of both sides, i.e., carriage " is stopped
Vehicle " is between the guide rails.The working principle of limiter of speed is to drive speed limit device wheel to rotate by force by steel wire in the operation of carriage downlink,
Once speed is more than normal speed, limiter of speed just will disconnect safety return circuit, and the movement of limiter of speed safety switch disconnects control loop,
Elevator shuts down.At that time, speed limiter wire rope has been lifted by the frictional force or rope grip mechanism of rope sheave and has been installed on carriage beam
Safety tongs push and pull system, safety tongs movement, by carriage, stop is on guide rail by force, while safety tongs lifting rod handling safety is opened
Pass movement.However this structure of villa elevator is driven by force since to resurveying, elevator device does not stop output, and system band-type brake has one
Fixed delay time, band-type brake coil losing electricity, then elevator will continue to drop, and locking, which acts, takes around 300ms, in time period,
Carriage freely falling body, acceleration are about 9.8m/s2, maximum speed Vmax=gt=9.8*0.3=2.94m/s, villa before locking
The specified ladder speed of ladder is usually 0.5m/s, considerably beyond the specified ladder speed of 115% elevator, when elevator downlink, elevator speed compared with
Height, elevator speed height are easy to cause limiter of speed to generate malfunction, so that limiter of speed is in the event that should not result in limiter of speed movement
Hinder or should not result in and acted in the normal operation of limiter of speed movement, limiter of speed movement, when safe clamp brake, elevator will be born
Very big impact force will lead to section structural deformation and scrap when serious.
Summary of the invention
The present invention solves the technical problem of avoiding limiter of speed malfunction from executing, reduces limiter of speed malfunction and execute institute
Bring influences.
According in a first aspect, providing a kind of strong control method for driving elevator in a kind of embodiment, comprising:
Monitor the movement of limiter of speed；
Judge whether limiter of speed malfunctions；
When judging that limiter of speed malfunctions, output control signal, to prevent the execution of elevator device maloperation,
In, the maloperation is caused by the malfunction of limiter of speed；
According to the operation of preset logic control elevator.
It is described when judging that limiter of speed malfunctions in a kind of wherein possible implementation, output control signal, with
Prevent elevator device maloperation execution include:
When judging that limiter of speed malfunctions, output control signal control elevator device executes opposite with malfunction move
Make, to prevent the execution of elevator device maloperation.
It is described when judging that limiter of speed malfunctions in a kind of wherein possible implementation, output control signal, with
Prevent the execution of elevator device maloperation further include:
Obtain preset delay time, wherein the preset delay time delays elevator device to execute maloperation
Time avoids causing the maloperation of elevator device immediately because of the malfunction of limiter of speed；
The output control signal in preset delay time.
It is described to judge whether limiter of speed malfunction occurs and include: in a kind of wherein possible implementation
Under preset operating condition, limiter of speed output signal, and detect that safety return circuit disconnects and/or loop of the door lock disconnects,
Judge that limiter of speed malfunctions.
It is described when judging that limiter of speed malfunctions in a kind of wherein possible implementation, output control signal control
Elevator device processed executes the movement opposite with malfunction, to prevent the execution of elevator device maloperation from including:
When limiter of speed malfunctions, the contactor of output control safety return circuit and/or the contactor of loop of the door lock are short
The control signal connect executes the movement opposite with malfunction to control elevator device.
In a kind of wherein possible implementation, the operation according to preset logic control elevator includes:
Obtain preset deceleration curve；
The operation of elevator is controlled according to preset deceleration curve.
In a kind of wherein possible implementation, the operation for controlling elevator according to preset deceleration curve includes:
Obtain default safe distance；
The torque capacity of real-time monitoring elevator device output；
When the torque capacity of output reaches the rated maximum torque of elevator device, and the distance of elevator operation reaches default
When the default ratio of safe distance, stop output control signal；
Or obtain default safe distance；
When detecting that the distance of elevator operation reaches default safe distance, stop output control signal；
Or the torque capacity of real-time monitoring elevator device output；
It is bent according to the preset deceleration when the torque capacity of output does not reach the rated maximum torque of elevator device
Line traffic control elevator runs slowly.
According to second aspect, is provided in a kind of embodiment and a kind of strong drives elevator device, comprising:
Master control borad judges whether limiter of speed malfunctions for monitoring the movement of limiter of speed, when judging that limiter of speed occurs
When malfunction, output control signal, according to the operation of preset logic control elevator；
Safe handling circuit carries out secure processing operations, for receiving the control signal to prevent elevator device from accidentally grasping
The execution of work, wherein the maloperation is caused by the malfunction of limiter of speed.
In a kind of wherein possible implementation, the safe handling circuit includes:
The first short circuit contactor being connected between master control borad and safety return circuit contactor, it is short for receiving control signal
Connect safety return circuit；
The second short circuit contactor being connected between master control borad and loop of the door lock contactor, it is short for receiving control signal
Connect loop of the door lock.
In a kind of wherein possible implementation, the safe handling circuit further include:
Delay circuit, one end connect the safety return circuit contactor and/or the loop of the door lock contactor, other end connection
Operation contactor and/or band-type brake contactor, for exporting a preset delay time, when the safety return circuit contactor/or institute
When stating the disconnection of loop of the door lock contactor, the operation contactor and/or band-type brake contactor are by the described preset of delay circuit
Delay time delays to disconnect.
Implement the embodiment of the present invention to have the following beneficial effects:
A kind of strong control method for driving elevator, comprising: the movement for monitoring limiter of speed judges whether limiter of speed malfunction occurs
Make, when judging that limiter of speed malfunctions, output control signal, to prevent the execution of elevator device maloperation, wherein described
Maloperation is caused by the malfunction of limiter of speed, according to the operation of preset logic control elevator.By being acted to limiter of speed
Monitoring, obtain the information of limiter of speed malfunction in real time, and when limiter of speed malfunction, output control signal prevents to miss behaviour
The execution of work avoids limiter of speed and malfunctions and stop elevator, and reducing influences elevator impact force brought by stop elevator,
And improve the usage experience of user.
A kind of strong drive elevator device, comprising: master control borad judges whether limiter of speed occurs for monitoring the movement of limiter of speed
Malfunction, when judging that limiter of speed malfunctions, output control signal, according to the operation of preset logic control elevator, peace
Full processing circuit carries out secure processing operations for receiving the control signal, to prevent the execution of elevator device maloperation,
Wherein, the maloperation is caused by the malfunction of limiter of speed.The monitoring that limiter of speed is acted by master control borad, and supervising
It when measuring limiter of speed malfunction, exports control signal and gives safe handling circuit, safety is carried out to malfunction by safe handling circuit
Processing avoids limiter of speed and malfunctions and stop elevator, and reducing influences elevator impact force brought by stop elevator, and
Improve the usage experience of user.
Detailed description of the invention
Fig. 1 is the strong hoist engine structural schematic diagram for driving elevator；
Fig. 2 is the strong structural schematic diagram for driving elevator；
Fig. 3 is a kind of strong drive elevator system configuration schematic diagram of embodiment；
Fig. 4 is a kind of band-type brake circuit figure of the strong drive elevator device of embodiment；
Fig. 5 is a kind of control method flow diagram of the strong drive elevator of embodiment；
Fig. 6 is the control method flow diagram of the strong drive elevator of another embodiment；
Fig. 7 is a kind of acceleration and deceleration curves schematic diagram of embodiment；
Fig. 8 is a kind of deceleration curve schematic diagram of embodiment.
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.Wherein different embodiments
Middle similar component uses associated similar element numbers.In the following embodiments, many datail descriptions be in order to
The application is better understood.However, those skilled in the art can recognize without lifting an eyebrow, part of feature
It is dispensed, or can be substituted by other elements, material, method in varied situations.In some cases, this Shen
Please it is relevant it is some operation there is no in the description show or describe, this is the core in order to avoid the application by mistake
More descriptions are flooded, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary, they
Relevant operation can be completely understood according to the general technology knowledge of description and this field in specification.
It is formed respectively in addition, feature described in this description, operation or feature can combine in any suitable way
Kind embodiment.Meanwhile each step in method description or movement can also can be aobvious and easy according to those skilled in the art institute
The mode carry out sequence exchange or adjustment seen.Therefore, the various sequences in the description and the appended drawings are intended merely to clearly describe a certain
A embodiment is not meant to be necessary sequence, and wherein some sequentially must comply with unless otherwise indicated.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).
Brief description drives by force the structure of elevator, mainly includes dynamical system, guidance system, carriage, door system, Electric Traction
System, electric control system, safety guard.Wherein, dynamical system includes hoist engine, as shown in Figure 1.Guidance system includes
Car guide rail, guide shoe and guide rail bracket etc..Carriage includes car frame and carriage.Door system includes car door, layer door, door lock, enabling
Machine and shutdown anti-pinch device.Electric drive system includes power supply system, motor and motor speed control device etc..Electric control system
Including master control borad, call box, control cabinet, floor instruction, leveling switch, travel switch.Safety guard includes limiter of speed, peace
Full pincers, the protection of buffer end station, overspeed protection, disconnected phase fault-phase protection, high-low limit, layer door lock and gate electric interlocking installation
Deng.
Referring to Fig. 1 and Fig. 2, the strong course of work for driving elevator of summary: call box receives input signal, and electric control system connects
It is instructed, the rotation of hoist engine energization rotating drum, then coil of strip moves wirerope, and wirerope drives carriage to do straight line along rigid guideway
Movement, by force by carriage and freight lifting and decline, wirerope one end is connected on reel, and the other end is directly connected in carriage,
It is pulled by force by mechanical force.
Embodiment one
Referring to FIG. 3, the embodiment of the invention provides a kind of strong drive elevator devices, comprising:
Master control borad judges whether limiter of speed malfunctions for monitoring the movement of limiter of speed, when judging that limiter of speed occurs
When malfunction, output control signal, according to the operation of preset logic control elevator.
In embodiments of the present invention, master control borad to the starting of elevator motor and door machine, traffic direction, deceleration, stopping control
System, and every stop is shown, the command signals such as instruction, safeguard protection are managed in floor call, sedan-chair.
In embodiments of the present invention, limiter of speed effect be once elevator appearance overload, skid, controlling phenomena such as out of control, limit
Fast device and safety tongs will act, between the guide rails by carriage " brake ".When carriage is run, is driven and limited by speed limiter wire rope
Fast device wheel rotation, when carriage downstream rate is more than 115% or more of normal speed, the electric switch on limiter of speed will be first
The safety return circuit of elevator is cut off in movement, and limiter of speed, which passes through the method for cutting off the power and starting mechanical brake, to be made exceeding the speed limit
Operation elevator slows down while get off, and safety tongs just plays a role, and when carriage continues decline, acts on the traction on governor rope
Power is lifted up mechanical linkage, drives safety tongs pulling function, under the pulling of safety tongs, wedge is rapidly lifted, and is passed through
Friction and pressure, clamp guide rail, make carriage promptly stop motion between wedge and guide rail.
In embodiments of the present invention, master control borad is avoided by the movement of monitoring limiter of speed when limiter of speed should not act
Time is acted, and generating the method that mechanical brake is cut off the power and started after malfunctioning stops elevator rapidly, to electricity
Ladder band carrys out very big impact force.By whether disconnecting in monitoring safety return circuit and/or loop of the door lock, and combine the fortune of current elevator
Row state carries out judging that limiter of speed malfunctions, in elevator downlink, and detect in safety return circuit or loop of the door lock one
A or two circuits disconnect and then judge that limiter of speed malfunctions.Illustratively, the situation that limiter of speed can malfunction has: In
When elevator switches to inspecting state by operating status, because inspecting state is slow train operating status, switch by express operating status
When to slow train operating status, elevator control system stops output, and system band-type brake has certain delay time, then elevator will continue to down
Pendant, causes limiter of speed to malfunction.Or because elevator breaks down, elevator control system being caused to stop output, system band-type brake has one
Fixed delay time, then elevator can drop, and then cause limiter of speed malfunction.Failure or state switching will not during uplink
Limiter of speed is caused to act, whether limiter of speed can malfunction when so there is no need to judge ascending for elevator.
Safe handling circuit carries out secure processing operations, for receiving the control signal to prevent elevator device from accidentally grasping
The execution of work, wherein the maloperation is caused by the malfunction of limiter of speed.
In embodiments of the present invention, the safe handling circuit includes being connected between master control borad and safety return circuit contactor
The first short circuit contactor, for receive control signal, be shorted safety return circuit.Be connected to master control borad and loop of the door lock contactor it
Between the second short circuit contactor, for receive control signal, be shorted loop of the door lock.
In embodiments of the present invention, the port x 25 of master control borad is for connecting high-voltage safety circuit, and port x 26 is for connecting
First loop of the door lock, port x 27 is for connecting the second loop of the door lock, and port COM connection common end, port Y1 is for connecting operation
Contactor, for port Y2 for connecting band-type brake contactor, port Y3 is short for connecting safety return circuit short circuit contactor i.e. described first
Contactor is connect, port Y4 is for connecting i.e. described second short circuit contactor of loop of the door lock short circuit contactor, and KMS1 is described in figure
First short circuit contactor, KMS2 are second short circuit contactor, and KMS11 is the shorting switch of the first short circuit contactor, KMS22
For the shorting switch of second short circuit contactor, KDY is operation contactor, is connected in parallel on operation contactor by resistance and capacitor
KDY, KLZ are band-type brake contactor, are connected in parallel on band-type brake contactor KLZ by resistance and capacitor.It referring to fig. 4, is the electricity of system band-type brake
Lu Tu, KDYY are the switch of operation contactor, and KLZZ is the switch of band-type brake contactor, and BK is band-type brake, passes through resistance RZ and two poles
Pipe DZ parallel connection band-type brake, when system stops exporting, band-type brake will power loss disconnection.Master control borad passes through port x 25, port x 26, port
X27 detects safety return circuit and loop of the door lock state, and when detecting that safety return circuit and/or loop of the door lock disconnect, while elevator is run
Direction is downlink, judges that maloperation, output control signal, the control of port Y3 output safety circuit short circuit contactor occur for limiter of speed
Signal and port Y4 output loop of the door lock short circuit contactor control signal, make the first short circuit contactor KMS1 and the second shorting contact
Device KMS2 coil energization movement, then the first short circuit contactor KMS1 passes through the shorting switch KMS11 that is connected on safety return circuit
Safety return circuit is shorted, the second short circuit contactor KMS2 is returned door lock by the shorting switch KMS22 being connected on loop of the door lock
It is short out to connect, the malfunction because of elevator governor is avoided, disconnects safety return circuit and/or loop of the door lock, and then because safety return circuit is disconnected
It opens or loop of the door lock disconnects, hardware circuit directly disconnects operation contactor and band-type brake contactor, so that malfunctioning in limiter of speed
When, operation contactor and band-type brake contactor are not turned off, and master control borad is still connected to motor, the control of electric control system output torque
Motor does not drop, so that torque ramp to stop of the motor according to output.
In embodiments of the present invention, the safe handling circuit further include: delay circuit, one end connect the safety return circuit
Contactor and/or the loop of the door lock contactor, the other end connect operation contactor and/or band-type brake contactor, for exporting one
Preset delay time, when the safety return circuit contactor/or loop of the door lock contactor disconnection, the operation contactor
And/or band-type brake contactor delays to disconnect by the preset delay time of delay circuit.
In embodiments of the present invention, safety return circuit and loop of the door lock controlled by a delay circuit operation contactor and
Band-type brake contactor, when the disconnection of any one of safety return circuit and loop of the door lock, then after the delay time T of delay circuit, electricity
Terraced band-type brake and operation contactor can disconnect automatically.Safety return circuit and loop of the door lock are sent into the detection of elevator control system chip interior
Afterwards, can ensure to complete within T time to be shorted by the short circuit contactor signal triggered above.To make in T time
Short circuit contactor can be shorted safety return circuit and loop of the door lock, operation contactor caused by avoiding safety return circuit or door lock from disconnecting
With the disconnection of band-type brake contactor, i.e., control signal is outputed in preset delay time, then have passed through default delay time it
Afterwards, operation contactor and band-type brake contactor will not disconnect.Delay circuit is exactly in order to avoid in safety return circuit and/loop of the door lock
One or both of disconnect when cause elevator device maloperation immediately, that is, turn off operation contactor and band-type brake contactor, lead to
It crosses delay circuit and short circuit contactor avoids main contactor from disconnecting, purpose is to solve the problems, such as to drive lift car tenesmus, limiter of speed by force
The problem of malfunction is with mechanical brake stop, from safety considerations, delay circuit and short circuit contactor are lift car
It is steady to stop preceding preparatory action, it allows motor and electric control system to keep connecting, allows according to preset logic ramp to stop, guarantee
Safety.
Implementing the embodiment of the present invention has following outstanding feature:
A kind of strong drive elevator device, comprising: master control borad judges whether limiter of speed occurs for monitoring the movement of limiter of speed
Malfunction, when judging that limiter of speed malfunctions, output control signal, according to the operation of preset logic control elevator, peace
Full processing circuit carries out secure processing operations for receiving the control signal, to prevent the execution of elevator device maloperation,
Wherein, the maloperation is caused by the malfunction of limiter of speed.The monitoring that limiter of speed is acted by master control borad, and supervising
It when measuring limiter of speed malfunction, exports control signal and gives safe handling circuit, safety is carried out to malfunction by safe handling circuit
Processing avoids limiter of speed and malfunctions and stop elevator, and reducing influences elevator impact force brought by stop elevator, and
Improve the usage experience of user.
When inspection switch goes to normal condition from inspecting state outside elevator, if elevator is overhauling fortune before the handover
Row, then elevator is switched to normal condition after elevator stopping according to the deceleration ramp to stop of maintenance again.When elevator is from normal condition
When being switched to inspecting state, if elevator is in shutdown status before this, elevator operation mode is directly switched to from maintenance model
Operational mode.If elevator is in operating status, when ascending for elevator, if elevator detects safety return circuit disconnection or door lock
When circuit disconnects, elevator control system stops output, closes band-type brake.One short circuit of elevator control system master control borad control simultaneously
The output of the contactor of loop of the door lock and safety return circuit is invalid.When elevator downlink, then driven according to one kind of following embodiments two is strong
The control method of elevator is controlled.Limiter of speed will not occur to malfunction so there is no need to monitor to prevent when ascending for elevator, elevator downlink
When can occur malfunction thus need be monitored prevention.
Embodiment two
Fig. 5 is referred to, a kind of strong control method for driving elevator provided in an embodiment of the present invention can be carried out by master control borad
Operation, specific as follows including at least step S11 to step S14:
Step S11: the movement of limiter of speed is monitored.
In embodiments of the present invention, the movement of master control borad real-time monitoring limiter of speed, detect its whether output signal.
Step S12: judge whether limiter of speed malfunctions.
In embodiments of the present invention, limiter of speed movement is because it detects that the speed of service of elevator exceeds the speed limit, on limiter of speed
The block that gets rid of the centrifugal force thrown out outward is generated due to the high speed rotation of limiter of speed, when hypervelocity when, first by getting rid of one on block
A bolt moves limiter of speed electric safety switch, cuts off safety return circuit.The malfunction of the limiter of speed refer to conventional fault (no
The failure that limiter of speed should be caused to act) or routine operation (operation that should not result in limiter of speed movement) movement in the process, normal
In the movement of rule or the operation of routine, in elevator downlink, often because elevator control system stops exporting, and system band-type brake
There is certain delay time, then elevator will continue to drop, and do the movement of falling object, and limiter of speed is caused to carry out maloperation.Such as electricity
It is routine operation that terraced normal mode, which switches to maintenance model, is not elevator faults, limiter of speed should not act at this time.
It is described to judge whether limiter of speed malfunction occurs and include: in a kind of wherein possible implementation
Under preset operating condition, limiter of speed output signal, and detect that safety return circuit disconnects and/or loop of the door lock disconnects,
Judge that limiter of speed malfunctions.
In a kind of wherein possible implementation, the preset operating condition includes:
In elevator downlink, elevator device stops output, under system delay contracting, operating condition that limiter of speed should not act.
It detects that elevator is in downstream state by master control borad in embodiments of the present invention, and detects that safety return circuit disconnects
And/or loop of the door lock disconnects, then may determine that limiter of speed is malfunctioned.Or stop exporting in elevator device, system is embraced
Under lock delay, under the operating condition that limiter of speed should not act, elevator downlink is detected, and safety return circuit disconnects and/or door lock returns
Road disconnects, then judges that limiter of speed is malfunctioned.
In embodiments of the present invention, in elevator downlink, limiter of speed output signal is detected, elevator detects that safety return circuit is disconnected
It opens or loop of the door lock disconnects, then judge that limiter of speed malfunctions, it can be determined that in elevator downlink, elevator device is because of failure or shape
State switching causes system to stop output, then system band-type brake coil does not have power loss, and band-type brake is when lift car is in static and motor
The electromechanical assembly for preventing elevator from moving under power failure state again, system delay contracting, then elevator can be because do not stop in time
And occur doing the movement of falling object, cause elevator speed to exceed the speed limit, then limiter of speed will generate malfunction, disconnect safety return circuit and/or
Loop of the door lock, because hardware circuit will directly disconnect operation contactor and embrace after safety return circuit disconnection or loop of the door lock disconnect
Lock contactor, then electric control system is just unable to control motor and is stopped by it according to the torque of output, the mechanical system of limiter of speed starting
Dynamic device makes elevator be in a kind of very fast halted state, and then when safe clamp brake, and elevator will bear very big impact force, when serious
It will lead to section structural deformation to scrap.
Step S13: when judging that limiter of speed malfunctions, output control signal, to prevent elevator device maloperation
It executes, wherein the maloperation is caused by the malfunction of limiter of speed.
It is described when judging that limiter of speed malfunctions in a kind of wherein possible implementation, output control signal, with
Prevent elevator device maloperation execution include:
When judging that limiter of speed malfunctions, output control signal control elevator device executes opposite with malfunction move
Make, to prevent the execution of elevator device maloperation.
It is described when judging that limiter of speed malfunctions in a kind of wherein possible implementation, output control signal control
Elevator device processed executes the movement opposite with malfunction, to prevent the execution of elevator device maloperation from including:
When limiter of speed malfunctions, the contactor of output control safety return circuit and/or the contactor of loop of the door lock are short
The control signal connect executes the movement opposite with malfunction to control elevator device.
In embodiments of the present invention, master control borad output control signal, elevator control system control door lock be shorted circuit and
The contactor output of safety return circuit effectively, that is, passes through the loop of the door lock or peace that the control signal control of one short circuit of output is disconnected
On the contactor of full loop is shorted, avoid after being disconnected because of safety return circuit disconnection or loop of the door lock, hardware circuit will be disconnected directly
Operation contactor and band-type brake contactor.It has then cut off electric control system in operation contactor disconnection to connect with host, electric-controlled
System output torque processed can not reach host and it is maintained not drop, and then so that elevator is in pole by mechanical brake by limiter of speed
Fast halted state.By being shorted the contactor of loop of the door lock or safety return circuit, so that elevator device will not be because of the mistake of limiter of speed
Maloperation occurs for movement, i.e., not will disconnect operation contactor and band-type brake contactor, and then can be by electric control system according to pre-
If logic control elevator it is out of service, avoid so that elevator is in a kind of state stopped rapidly by mechanical brake.
It is described when judging that limiter of speed malfunctions in a kind of wherein possible implementation, output control signal, with
Prevent the execution of elevator device maloperation further include:
Obtain preset delay time, wherein the preset delay time delays elevator device to execute maloperation
Time avoids causing the maloperation of elevator device immediately because of the malfunction of limiter of speed；
The output control signal in preset delay time.
In embodiments of the present invention, when determining that limiter of speed malfunctions, for avoid because limiter of speed malfunction immediately
Cause the maloperation of elevator device, in order to avoid connecing because safety return circuit disconnection or loop of the door lock disconnect initiation open shop immediately
The disconnection of tentaculum and band-type brake contactor, export a preset delay time so that by the preset delay time it
Afterwards, the malfunction of limiter of speed just triggers the maloperation of elevator device, after by preset delay time, elevator internal contracting brake and fortune
Row contactor may just will disconnect, but because outputing control signal in preset delay time, according to the control signal
It controls elevator device and executes the movement opposite with malfunction, to prevent the execution of elevator device maloperation, i.e., in preset delay
The contactor of loop of the door lock or safety return circuit is shorted in time, so that operation connects after default delay time
Tentaculum and band-type brake contactor not will disconnect.
Step S14: according to the operation of preset logic control elevator.
Referring to Fig. 6, in a kind of wherein possible implementation, the operation according to preset logic control elevator includes
Step S21- step S22:
Step S21: preset deceleration curve is obtained；
Step S22: the operation of elevator is controlled according to preset deceleration curve.
In embodiments of the present invention, the preset deceleration curve can by piecewise function calculate obtain, by point
The relevant parameter of section function carries out setting and determines the preset deceleration curve.Referring to Fig. 7, elevator operation is added according to preset
Deceleration curve is run, the preset acceleration and deceleration curves include acceleration, start section suddenly accelerate, ending segment suddenly accelerate,
Slow down, starting section, suddenly deceleration, ending segment suddenly slow down, wherein anxious to accelerate or suddenly slow down to be the variation for indicating acceleration/deceleration
Rate, when starting section suddenly acceleration F03.01, percentage speed variation is preset as 0.3m/s3, in acceleration F03.00, acceleration
It is preset as 0.6m/s2, when starting section urgency deceleration F03.02, percentage speed variation is preset as 0.3m/s3, suddenly slow down starting section
When F03.04, percentage speed variation is preset as 0.3m/s3, in acceleration F03.03, acceleration is preset as 0.6m/s2, tying
When beam section urgency deceleration F03.05, percentage speed variation is preset as 0.3m/s3, when parameter value increases, acceleration and deceleration curves will become
Suddenly, acceleration and deceleration become faster, and when parameter value reduces, acceleration and deceleration curves will slow down, and acceleration and deceleration are slack-off.The default deceleration curve is just
It is in the curve for starting section urgency deceleration F03.04, acceleration F03.03 and ending segment urgency deceleration F03.05.
In embodiments of the present invention, referring to Fig. 8, the deceleration curve method can obtain with the following method, and elevator is full
It carries downlink and runs to normal speed, deceleration of elevator curve is defined as containing respectively according to the increasing of anxious deceleration increment J1=urgency deceleration
Measure J2=1.000m/s3For initial value, increase 0.200m/s every time3, the maximum output torque of elevator is recorded respectively, is exported in elevator
When torque reaches the 80% of elevator torque capacity, it is to export nominal torque, output-current rating that controller, which exports rated current,
For elevator host rated current.Compare whether output torque reaches nominal torque 80%.Current deceleration curve J1 is started
The anxious deceleration of section, J2 ending segment urgency deceleration as preset deceleration curve deceleration, by variation urgency deceleration increment J1 with
When anxious deceleration increment J2 reaches maximum output torque electric current to test, and anxious deceleration increment J1 and urgency deceleration increment J2 are arrived
Finally value is consistent.Pass through the available biggish deceleration curve value of above-mentioned processing.The deceleration distance of elevator can be shorter in this way.
Above-mentioned function can be obtained automatically by elevator control system, be not necessarily to manual operation.
In a kind of wherein possible implementation, the operation for controlling elevator according to preset deceleration curve includes:
Obtain default safe distance；
The torque capacity of real-time monitoring elevator device output；
When the torque capacity of output reaches the rated maximum torque of elevator device, and the distance of elevator operation reaches default
When the default ratio of safe distance, stop output control signal；
Or obtain default safe distance；
When detecting that the distance of elevator operation reaches default safe distance, stop output control signal；
Or the torque capacity of real-time monitoring elevator device output；
It is bent according to the preset deceleration when the torque capacity of output does not reach the rated maximum torque of elevator device
Line traffic control elevator runs slowly.
In embodiments of the present invention, after output control signal prevents the maloperation execution of elevator device, according to preset
Logic carries out ramp to stop and avoids elevator from being in crash-stop state so that elevator stops according to preset deceleration curve.To keep away
Exempt to be shorted loop of the door lock for a long time and safety return circuit contactor will appear danger.A default safe distance is obtained, wherein default peace
Full distance can be set to 10cm, and general villa elevator is usually in 0.5m/s speed hereinafter, according to deceleration 1m/s2, need to subtract
Speed distance is 12.5cm, usual unusual slowdown parking deceleration 1m/s2Will be big it is more, so actual deceleration distance than
Small more of 12.5cm.It is small then to preset the safe 10cm when ratio 12.5cm that is exemplified as, can guarantee the safe operation of elevator.When to export control
Signal processed is starting point, i.e. record short circuit contactor output is starting point, and recording current height is elemental height, can pass through reading
The operation distance of elevator obtains this elemental height, or is directly detected highly by position sensor, because elevator can be after
Continuous downlink, if detect present level in the default safe distance of elemental height hereinafter, if elevator device stop issuing and be shorted
Control signal.Elevator normal operation range is equipped with limit switch, and limit switch under bottom leveling between bottom and top layer
It is 15cm with leveling switch distance, is greater than default safe distance, elevator forces speed reducing switch in bottom and top layer, this switch mesh
It is to be limited in elevator in the speed of service at both ends, usually 0.1m/s, i.e., operate in certain with top layer apart from bottom in elevator
It can be by forcing speed reducing switch to stop elevator after distance, bottom or top layer will be arrived at because of range ability by avoiding elevator operation
Do not reach default safe distance and danger occurs.
In embodiments of the present invention, referring to Fig. 8, when elevator control system slows down according to the deceleration curve of setting, In
Real-time monitoring elevator control system exports torque capacity in moderating process, if reaching elevator control system in moderating process
Rated maximum torque, then may current elevator load it is heavier, there may be occur can not be according to the curve speed of setting for all-in-one machine
The case where degree slows down, for this purpose, if elevator master control system actively disconnects when having reached the default ratio of default safe distance
Band-type brake allows band-type brake to participate in the braking of elevator, so that elevator is out of service.Wherein, the default ratio is preferably 2/3, at the same time
Satisfaction reaches output torque capacity and height reaches preset 2/3, cuts off brake loop, and band-type brake coil losing electricity stop and stops
Carriage movement.
If elevator operation output torque does not reach the rated maximum torque of elevator control system in moderating process,
Then elevator normally slows down according to the preset deceleration curve.
In a kind of wherein possible implementation, the operation according to preset logic control elevator further include:
When elevator is out of service, stop output control signal.
In embodiments of the present invention, elevator stops according to preset deceleration curve, when elevator is out of service, stops output
Signal is controlled, the contactor of loop of the door lock or safety return circuit is avoided to inhibit to be shorted.
Implementing the embodiment of the present invention has following outstanding feature:
A kind of strong control method for driving elevator, comprising: the movement for monitoring limiter of speed judges whether limiter of speed malfunction occurs
Make, when judging that limiter of speed malfunctions, output control signal, to prevent the execution of elevator device maloperation, wherein described
Maloperation is caused by the malfunction of limiter of speed, according to the operation of preset logic control elevator.By being acted to limiter of speed
Monitoring, obtain the information of limiter of speed malfunction in real time, and when limiter of speed malfunction, output control signal prevents to miss behaviour
The execution of work avoids limiter of speed and malfunctions and stop elevator, and reducing influences elevator impact force brought by stop elevator,
And improve the usage experience of user.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not to limit
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (10)
1. a kind of strong control method for driving elevator characterized by comprising
Monitor the movement of limiter of speed；
Judge whether limiter of speed malfunctions；
When judging that limiter of speed malfunctions, output control signal, to prevent the execution of elevator device maloperation, wherein institute
Stating maloperation is caused by the malfunction of limiter of speed；
According to the operation of preset logic control elevator.
2. the strong control method for driving elevator as described in claim 1, which is characterized in that described to judge that malfunction occurs in limiter of speed
When making, output control signal, to prevent the execution of elevator device maloperation from including:
When judging that limiter of speed malfunctions, output control signal control elevator device executes the movement opposite with malfunction,
To prevent the execution of elevator device maloperation.
3. the strong control method for driving elevator as claimed in claim 2, which is characterized in that described to judge that malfunction occurs in limiter of speed
When making, output control signal, to prevent the execution of elevator device maloperation further include:
Obtaining preset delay time, wherein the preset delay time is the time for delaying elevator device to execute maloperation,
It avoids causing the maloperation of elevator device immediately because of the malfunction of limiter of speed；
The output control signal in preset delay time.
4. the strong control method for driving elevator as claimed in claim 2, which is characterized in that described to judge whether limiter of speed misses
Movement includes:
Under preset operating condition, limiter of speed output signal, and detect that safety return circuit disconnects and/or loop of the door lock disconnects, judgement
Limiter of speed malfunctions.
5. the strong control method for driving elevator as claimed in claim 4, which is characterized in that described to judge that malfunction occurs in limiter of speed
When making, output control signal control elevator device executes the movement opposite with malfunction, to prevent holding for elevator device maloperation
Row includes:
When limiter of speed malfunctions, the contactor short circuit of the contactor and/or loop of the door lock of output control safety return circuit
Signal is controlled, executes the movement opposite with malfunction to control elevator device.
6. the strong control method for driving elevator as described in any one in claim 1-5, which is characterized in that described to be patrolled according to preset
The operation of volume control elevator includes:
Obtain preset deceleration curve；
The operation of elevator is controlled according to preset deceleration curve.
7. the strong control method for driving elevator as claimed in claim 6, which is characterized in that described according to preset deceleration curve control
The operation of elevator processed includes:
Obtain default safe distance；
The torque capacity of real-time monitoring elevator device output；
When the torque capacity of output reaches the rated maximum torque of elevator device, and the distance of elevator operation reaches default safety
When the default ratio of distance, stop output control signal；
Or obtain default safe distance；
When detecting that the distance of elevator operation reaches default safe distance, stop output control signal；
Or the torque capacity of real-time monitoring elevator device output；
When the torque capacity of output does not reach the rated maximum torque of elevator device, according to the preset deceleration curve control
Elevator processed runs slowly.
8. a kind of strong drive elevator device characterized by comprising
Master control borad judges whether limiter of speed malfunctions for monitoring the movement of limiter of speed, when judging that malfunction occurs in limiter of speed
When making, output control signal, according to the operation of preset logic control elevator；
Safe handling circuit carries out secure processing operations, for receiving the control signal to prevent elevator device maloperation
It executes, wherein the maloperation is caused by the malfunction of limiter of speed.
9. as claimed in claim 8 a kind of strong drive elevator device, which is characterized in that the safe handling circuit includes:
The first short circuit contactor being connected between master control borad and safety return circuit contactor is shorted peace for receiving control signal
Full loop；
The second short circuit contactor being connected between master control borad and loop of the door lock contactor is shorted door for receiving control signal
Lock loop.
10. a kind of strong drive elevator device as claimed in claim 9, which is characterized in that the safe handling circuit further include:
Delay circuit, one end connect the safety return circuit contactor and/or the loop of the door lock contactor, other end connection operation
Contactor and/or band-type brake contactor, for exporting a preset delay time, when the safety return circuit contactor/or the door
When lock loop contactor disconnects, the operation contactor and/or band-type brake contactor pass through the preset delay of delay circuit
Time dilation disconnects.
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| CN201910730599.7A CN110526048B (en) | 2019-08-08 | 2019-08-08 | Control method and system for forced drive elevator |
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| CN201910730599.7A CN110526048B (en) | 2019-08-08 | 2019-08-08 | Control method and system for forced drive elevator |
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| CN110526048B (en) | 2022-01-07 |
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