CN101910041B - Elevator system - Google Patents

Elevator system Download PDF

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Publication number
CN101910041B
CN101910041B CN200880124329.1A CN200880124329A CN101910041B CN 101910041 B CN101910041 B CN 101910041B CN 200880124329 A CN200880124329 A CN 200880124329A CN 101910041 B CN101910041 B CN 101910041B
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China
Prior art keywords
braking
towing machine
control algorithm
signal
speed detector
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CN101910041A (en
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上田隆美
地田章博
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/24Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/32Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

An elevator system in which a brake control part has first and second brake control arithmetic sections, a brake control shared memory section which stores shared data of the first and second brake control arithmetic sections, and a brake control communication section which transmits and receives signals to and from a hoist control communication section. Moreover the first and second brake control arithmetic sections compare input signals and arithmetic results with each other through the brake control shared memory section, and output a failure detection signal from the brake control communication section when the result of comparison exceeds a predetermined range.

Description

Lift appliance
Technical field
The present invention relates to lift appliance, it uses a plurality of speed detectors that produce the signal corresponding with the rotation that drives rope sheave, by brake control section, according to the signal of a plurality of systems from these speed detectors, controls brake equipment.
Background technology
Generally, the safety system of elevator is that snubber chain forms by the circuit series that comprises a plurality of switches and a plurality of contacts.According to the action of car, operate for example mistake speed governor and the limit switch in these contacts and switch.And, according to the movement of door, operate switch and the blocking device of stop door.
On the other hand, in using the elevator of electronic safety system, by central controller, by electronic security(ELSEC) bus, monitor various sensors, contact and switch in the past.On each position, bus node is connected with sensor, contact and switch respectively.And, from bus node, to central controller, send status information.In addition, be provided with microprocessor substrate on central controller, it has the input/output port (for example,, with reference to patent documentation 1) being connected with bus node with safety bus.
On the other hand, in the braking force control system of elevator in the past, when carrying out abnormality detection, by the 1st brake control section, traction machine brake is moved, make car emergent stopping.And, at traction machine brake, carry out emergency braking when action, at the deceleration/decel of car, reach predetermined value when above, by the 2nd brake control section, make the braking force of traction machine brake reduce (for example,, with reference to patent documentation 2).
Patent documentation 1: Japanese Unexamined Patent Application Publication 2002-538061 communique
Patent documentation 2:WO2007/088599A1
But in above-mentioned electronic safety system in the past, each bus node needs the power-supply wiring of communication unit and this communication unit of driving etc., cost raises.And, in braking force control system in the past, abnormal and brake control section self that can not detecting sensor extremely.
Summary of the invention
The present invention proposes in order to address the above problem just, and its object is, a kind of lift appliance is provided, and can suppress cost and rises and realize and save wiring, can improve the reliability that braking is controlled simultaneously.
Lift appliance of the present invention has: towing machine, and it has driving rope sheave, makes to drive the towing machine motor of rope sheave rotation and the brake equipment that the rotation of driving rope sheave is braked; Suspension unit, it is wound on driving rope sheave; Car, it is suspended in midair by suspension unit, the lifting by towing machine; The 1st speed detector and the 2nd speed detector, it produces respectively the detection signal corresponding with the rotation that drives rope sheave; Towing machine control part, it is according to controlling towing machine motor from the detection signal of the 1st speed detector and the 2nd speed detector; And brake control section, it is according to controlling brake equipment from the detection signal of the 1st speed detector and the 2nd speed detector, towing machine control part has: towing machine control algorithm portion, it,, according to the signal corresponding with the 1st speed detector and the 2nd speed detector, carries out for controlling the computing of towing machine motor; And towing machine control Department of Communication Force, its transmission of carrying out signal receives, and brake control section has: the 1st braking control algorithm portion, it,, according to the signal corresponding with the 1st speed detector, carries out for controlling the computing of brake equipment; The 2nd braking control algorithm portion, it,, according to the signal corresponding with the 2nd speed detector, carries out for controlling the computing of brake equipment; Share storage portion is controlled in braking, the shared data of its storage the 1st braking control algorithm portion and the 2nd braking control algorithm portion; And Department of Communication Force is controlled in braking, itself and towing machine are controlled the transmission reception of carrying out signal between Department of Communication Force, the 1st braking control algorithm portion and the 2nd braking control algorithm portion control share storage portion by braking, incoming signal and operation result are compared mutually, and when comparative result surpasses predetermined scope, make braking control Department of Communication Force output fault detection signal.
Accompanying drawing explanation
Fig. 1 means the constructional drawing of the lift appliance of embodiments of the present invention 1.
Fig. 2 means the constructional drawing of concrete structure of the lift appliance of Fig. 1.
Fig. 3 means the diagram of circuit of action of the brake control section of Fig. 2.
The instruction diagram that Fig. 4 means driving rope sheave speed when after just producing emergent stopping instruction car slows down, drives rope sheave deceleration/decel, the 1st braking changes with time of the state of electromagnetic relay and the state of the 1st deceleration/decel master cock and the 2nd deceleration/decel master cock with electromagnetic relay and the 2nd braking.
Fig. 5 means the diagram of circuit of the 1st braking control algorithm portion of Fig. 2 and the abnormity diagnosis action of the 2nd braking control algorithm portion.
Fig. 6 means the constructional drawing of the lift appliance of embodiments of the present invention 2.
Fig. 7 means the constructional drawing of the lift appliance of embodiments of the present invention 3.
Fig. 8 means the constructional drawing of the lift appliance of embodiments of the present invention 4.
The specific embodiment
Below, with reference to the accompanying drawings of the preferred embodiment of the present invention.
Embodiment 1
Fig. 1 means the constructional drawing of the lift appliance of embodiments of the present invention 1.In the drawings, car 1 and counterweight 2 are suspended in hoistway by the main rope 3 as suspension unit, and by propulsive effort lifting in hoistway of towing machine 4.
Towing machine 4 has: the driving rope sheave 5 of the main rope 3 of reeling; Make to drive the towing machine motor 6 of rope sheave 5 rotations; And to the brake equipment 7 that drives the rotation of rope sheave 5 to brake.Brake equipment 7 has the 1st detent 7a and the 2nd detent 7b.
On towing machine motor 6, be provided with speed test section 8, it produces with the rotative speed of the S. A. of towing machine motor 6, drives the signal that the rotative speed of rope sheave 5 is corresponding.Towing machine motor 6 and brake equipment 7 are controlled by operation controller 9.Signal from speed test section 8 is transfused to operation controller 9.
Each detent 7a, 7b have: with the driving coaxial brake wheel engaging of rope sheave 5 (brake wheel); The brake shoe approach/leaving with brake wheel; Brake shoe by being pressed on brake wheel and apply the retarding spring of braking force; And electromagnet, it resists retarding spring makes brake shoe leave and releasing brake power from brake wheel.
Fig. 2 means the constructional drawing of concrete structure of the lift appliance of Fig. 1.Electromagnet at the 1st detent 7a is provided with the 1st restraining coil (the 1st magnet coil) 11.Electromagnet at the 2nd detent 7b is provided with the 2nd restraining coil (the 2nd magnet coil) 12.
The 1st restraining coil 11 and the 2nd restraining coil 12 are connected in parallel with power supply.The 1st braking is connected in series between the 1st restraining coil 11 and the 2nd restraining coil 12 and power supply with electromagnetic relay 14 with electromagnetic relay 13 and the 2nd braking.
The 1st deceleration/decel master cock 15 is connected between the 1st restraining coil 11 and ground connection.The 2nd deceleration/decel master cock 16 is connected between the 2nd restraining coil 12 and ground connection.The 1st deceleration/decel master cock 15 and the 2nd deceleration/decel master cock 16 for example adopt semiconductor switch.By making these the 1st deceleration/decel master cocies 15 and the 2nd deceleration/decel master cock 16 on/off, control and flow to the electric current of the 1st restraining coil 11 and the 2nd restraining coil 12, thereby control the degree that applies of the braking force of the 1st detent 7a and the 2nd detent 7b.
Speed test section 8 comprises respectively independently, conduct produces the 1st speed detector of detection signal and the 1st coder 8a of the 2nd speed detector and the 2nd coder 8b.
Operation controller 9 has controls the towing machine control part 21 of towing machine motor 6, brake control section 22 and the leading section 23 of control brake equipment 7.And towing machine control part 21, brake control section 22 and leading section 23 are housed in common control housing.
The 1st towing machine is connected in series between towing machine motor 6 and towing machine control part 21 with electromagnetic relay 18 with electromagnetic relay 17 and the 2nd towing machine.Leading section 23 drives code device signal, switch order signal and the shutoff signal etc. of towing machine motor 6 and brake equipment 7 and the interface between towing machine control part 21 and brake control section 22 to play a role as being used for.
Leading section 23 has the 1st front end operational part 23a, the 2nd front end operational part 23b, the 23c of front end share storage portion (2 port ram), the front end signalling trouble 23d of portion and the 23e of front end communication portion.
Signal from the 1st coder 8a is transfused to the 1st front end operational part 23a.Signal from the 2nd coder 8b is transfused to the 2nd front end operational part 23b.
The 1st front end operational part 23a controls respectively the on/off of electromagnetic relay 17 for the 1st braking electromagnetic relay 13, the 1st deceleration/decel master cock 15 and the 1st towing machine.The 2nd front end operational part 23b controls respectively the on/off of electromagnetic relay 18 for the 2nd braking electromagnetic relay 14, the 2nd deceleration/decel master cock 16 and the 2nd towing machine.
The 1st front end operational part 23a and the 2nd front end operational part 23b distribute and utilize computing machine to form, and according to the signal from the 1st coder 8a and the 2nd coder 8b, carry out calculation process, obtain the rotative speed that drives rope sheave 5.
And the 1st front end operational part 23a and the 2nd front end operational part 23b can carry out reading and writing of shared data to the front end share storage 23c of portion.In addition, the 1st front end operational part 23a and the 2nd front end operational part 23b, by the front end share storage 23c of portion, compare the detection signal from the 1st coder 8a and the 2nd coder 8b and operation result each other.And, when the difference of the poor exclusive disjunction result of detection signal surpasses permissible value, the forward end signalling trouble 23d of portion input fault detection signal.
The 23e of front end communication portion and towing machine control part 21 and brake control section 22 communicate (serial communication).
Towing machine control part 21 has towing machine drive division 21a, the towing machine control algorithm 21b of portion and towing machine is controlled Department of Communication Force 21c.Towing machine drive division 21a is connected with towing machine motor 6 with electromagnetic relay 18 with the 2nd towing machine with electromagnetic relay 17 by the 1st towing machine, comprises for driving the inverter etc. of towing machine motor 6.Towing machine is controlled Department of Communication Force 21c and brake control section 22 and leading section 23 and is communicated (serial communication).
From the signal corresponding with the 1st coder 8a and the 2nd coder 8b of leading section 23, by towing machine, control Department of Communication Force 21c and be input to the towing machine control algorithm 21b of portion.The towing machine control algorithm 21b of portion utilizes computing machine to form, and according to the signal from leading section 23, carries out calculation process, generates for controlling the command signal of towing machine drive division 21a.
Brake control section 22 has the 1st braking 22a of control algorithm portion, the 2nd braking 22b of control algorithm portion, the braking control 22c of share storage portion (2 port ram), the 22d of signalling trouble portion is controlled in braking and Department of Communication Force 22e is controlled in braking.Braking is controlled Department of Communication Force 22e and towing machine control part 21 and leading section 23 and is communicated (serial communication).
From the signal of leading section 23, by braking, control Department of Communication Force 22e and be input to the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion.The 1st braking 22a of control algorithm portion utilizes computing machine to form, and according to the signal corresponding with the 1st coder 8a, carries out calculation process, generates for controlling the signal of the on/off of the 1st deceleration/decel master cock 15.And the 2nd braking 22b of control algorithm portion utilizes computing machine to form, according to the signal from the 2nd coder 8b, carry out the calculation process identical with the 1st braking 22a of control algorithm portion, generate for controlling the signal of the on/off of the 2nd deceleration/decel master cock 16.
And the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion can control the 22c of share storage portion to braking and carry out reading and writing of shared data.In addition, the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion control the 22c of share storage portion by braking, and incoming signal and operation result each other compared.And, when the difference of incoming signal exclusive disjunction result surpasses permissible value, to braking, control the 22d of signalling trouble portion input fault detection signal.
In addition, when making car 1 emergent stopping, brake control section 22 is controlled the on/off of the 1st deceleration/decel master cock 15 and the 2nd deceleration/decel master cock 16, so that the deceleration/decel of car 1 can be not excessive, thus the braking force (deceleration/decel control) of adjustment brake equipment 7.
The following describes action.When car 1 is advanced, the 1st front end operational part 23a and the 2nd front end operational part 23b carry out predetermined computing according to the signal from the 1st coder 8a and the 2nd coder 8b, detect the rotative speed that drives rope sheave 5.
Now, the 1st front end operational part 23a is by the front end share storage 23c of portion, to the signal from the 1st coder 8a with from the signal of the 2nd coder 8b, compares.And, when the difference of these signals is within the scope of predetermined incoming signal permissible error, carry out necessary calculation process, operation result is write to the front end share storage 23c of portion.
Equally, the 2nd front end operational part 23b is by the front end share storage 23c of portion, to the signal from the 2nd coder 8b with from the signal of the 1st coder 8a, compares.And, when the difference of these signals is within the scope of predetermined incoming signal permissible error, carry out necessary calculation process, operation result is write to the front end share storage 23c of portion.
And the 1st front end operational part 23a and the 2nd front end operational part 23b read the operation result of other system from the front end share storage 23c of portion, compare with the operation result of native system.When the difference of operation result is within the scope of predetermined operation result permissible error, operation result is write to the 23e of front end communication portion.
But, when the difference of the poor exclusive disjunction result of the incoming signal from the 1st coder 8a and the 2nd coder 8b is not within the scope of permissible error, the 1st front end operational part 23a and the 2nd front end operational part 23b are judged to be and have produced that certain is abnormal, and fault detection signal is input to the front end signalling trouble 23d of portion.
The operation result of the 1st front end operational part 23a and the 2nd front end operational part 23b and the fault detection signal that is input to the front end signalling trouble 23d of portion, send to towing machine control part 21 and brake control section 22 by the 23e of front end communication portion.Now, the processing of additional the 1st front end operational part 23a and the 2nd front end operational part 23b data constantly in the statement of operation result.Thus, the processing of the 1st front end operational part 23a and the 2nd front end operational part 23b is reflected in the computing of towing machine control part 21 and brake control section 22 constantly.And the determinating reference using the time as trouble diagnosing, can improve towing machine is controlled and braking is controlled reliability and precision.
And the information at additional fault generation position (abnormal position) sends in fault detection signal.Thus, the information at fault generation position is reflected in the computing of towing machine control part 21 and brake control section 22.
For example, at the signal from the 1st coder 8a, be always at 0 o'clock, expression fault generation position is that the information of the 1st coder 8a is attached in fault detection signal, sends to towing machine control part 21 and brake control section 22.
Thus, in brake control section 22, by the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion, carry out computing, generate for making brake equipment 7 carry out the instruction of braking maneuver, operation result is controlled Department of Communication Force 22e by braking and is sent to leading section 23.And, by leading section 23, make brake equipment 7 carry out braking maneuver.
And, in towing machine control part 21, by the towing machine control algorithm 21b of portion, carry out computing, generate the instruction for the lifting of car 1 is stopped, by towing machine drive division 21a, towing machine motor 6 is stopped.
Below, the action of the brake control section 22 when 23 pairs of normal operation results of leading section communicate is described.Fig. 3 means the diagram of circuit of action of the brake control section 22 of Fig. 2, the 1st braking 22a of control algorithm portion and the 2nd braking 22b of the control algorithm portion processing shown in executed in parallel Fig. 3 simultaneously.
In Fig. 3, first the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion process the initial setting (step S1) of needed a plurality of parameters.In this example, set following parameter: for car, stop the driving rope sheave speed V0[m/s that judges], stop the driving rope sheave speed V1[m/s that deceleration/decel is controlled] and for judging the 1st threshold gamma 1[m/s of the deceleration/decel that drives rope sheave 5 2] and the 2nd threshold gamma 2[m/s 2] (γ 1 < γ 2).
According to the predefined sample period, periodically repeatedly carry out the processing after initial setting.That is, the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion obtain the signal (step S2) from leading section 23 according to the predetermined cycle.Then, according to the signal from leading section 23, computing drives rope sheave deceleration/decel γ [m/s 2] (step S3).
Then, the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion determine whether that driving rope sheave speed (motor rotative speed) V to be greater than stops judging speed V0 and drive rope sheave deceleration/decel γ to be greater than the 1st threshold gamma 1.And, if do not meet this condition, generate for the 1st braking is made as to the instruction (step S9) of off-state with electromagnetic relay 13 and the 2nd braking with electromagnetic relay 14, by braking, control Department of Communication Force 22e this instruction is sent to leading section 23.Thus, the 1st restraining coil 11 and the 2nd restraining coil 12 are cut off power supply, can not carry out deceleration/decel control.
And, in the situation that satisfying condition V > V0 and γ > γ 1, the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion generate for making electromagnetic relay 13 and the instruction (step S5) of electromagnetic relay 14 closures for the 2nd braking for the 1st braking, control Department of Communication Force 22e this instruction is sent to leading section 23 by braking.
Here, when car 1 emergent stopping, energising to towing machine motor 6 is also cut off, thereby from producing emergent stopping instruction to braking force actual play a role during, due to the overbalance of the loading of car 1 side and the loading of counterweight 2, there is the situation of car 1 acceleration and the situation that car 1 slows down.
In the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion, if γ≤γ 1, being judged to be car 1 after just producing emergent stopping instruction accelerates, the 1st braking is made as to off-state with electromagnetic relay 13 and the 2nd braking with electromagnetic relay 14, so that braking force plays a role as early as possible.And, if γ > γ 1 is judged to be car 1 and slows down, make the 1st braking by electromagnetic relay 14 closures, implement deceleration/decel with electromagnetic relay 13 and the 2nd braking and control, so that deceleration/decel can be not excessive.
In deceleration/decel is controlled, the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion judge to drive rope sheave deceleration/decel γ whether to be greater than the 2nd threshold gamma 2 (step S6).And, if γ > γ 2, in order to suppress to drive rope sheave deceleration/decel γ, generation makes the 1st deceleration/decel master cock 15 and the 2nd deceleration/decel master cock 16 for example, according to the instruction (step S7) of predefined duty cycle of switching (50%) on/off, controls Department of Communication Force 22e this instruction is sent to leading section 23 by braking.Thus, the 1st restraining coil 11 and the 2nd restraining coil 12 are applied in predetermined voltage, control the braking force of brake equipment 7.Now, the 1st deceleration/decel master cock 15 and the 2nd deceleration/decel master cock 16 on/off synchronously mutually.
And if γ≤γ 2, the 1st deceleration/decel master cock 15 and the 2nd deceleration/decel master cock 16 are still off-state.Then, the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion control and stop judging (step S8).In control stops judging, judge and drive rope sheave speed V whether to be less than threshold value V1.And, if V >=V1 directly returns to input processing (step S2).And, if V < is V1, generates the 1st braking is made as to the instruction (step S9) of off-state with electromagnetic relay 13 and the 2nd braking with electromagnetic relay 14, then return to input processing (step S2).
Here, the instruction diagram that Fig. 4 means driving rope sheave speed when after just producing emergent stopping instruction car 1 slows down, drives rope sheave deceleration/decel, the 1st braking changes with time of the state of electromagnetic relay 14 and the state of the 1st deceleration/decel master cock 15 and the 2nd deceleration/decel master cock 16 with electromagnetic relay 13 and the 2nd braking.
When producing emergent stopping, car 1 deceleration that will begin in a minute.And, when when time T 1 deceleration/decel reaches γ 1, electromagnetic relay 13 and the 2nd braking electromagnetic relay 14 closures for the 1st braking, when when time T 2 deceleration/decels reach γ 2, the 1st deceleration/decel master cock 15 and the 2nd deceleration/decel master cock 16 on/off.Then, when driving rope sheave speed to be less than V1, the 1st braking disconnects with electromagnetic relay 14 with electromagnetic relay 13 and the 2nd braking, and the deceleration/decel based on the 1st deceleration/decel master cock 15 and the 2nd deceleration/decel master cock 16 is controlled and stopped.
Fig. 5 means the diagram of circuit of the 1st braking 22a of control algorithm portion of Fig. 2 and the abnormity diagnosis action of the 2nd braking 22b of control algorithm portion.The time point that each processing that the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion start in the input processing from Fig. 3 (step S2) finishes, the diagnostic process shown in calling graph 5.
In abnormity diagnosis action, judge the conformability (step S11) of the operation result of input value, the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion from leading section 23.Specifically, not abnormal if the difference of input value exclusive disjunction result, in predetermined scope, is judged to be, return to the processing below in Fig. 3.
And, in the situation that the difference of input value exclusive disjunction result surpasses predetermined scope, be judged to be abnormal, generate the 1st braking is made as to the instruction (step S12) of off-state with electromagnetic relay 13 and the 2nd braking with electromagnetic relay 14, to braking, control the 22d of signalling trouble portion output fault detection signal (step S13).
When the braking control 22d of signalling trouble portion receives fault detection signal, by braking, control Department of Communication Force 22e to the fault of towing machine control part 21 notice brake control section 22, output simultaneously makes the instruction that the operation of elevator stops.
In such lift appliance, at towing machine control part 21, towing machine is set and controls Department of Communication Force 21c, in brake control section 22, braking is set simultaneously and controls Department of Communication Force 22e, can control the transmission reception of carrying out data between Department of Communication Force 21c and braking control Department of Communication Force 22e at towing machine, thereby vital circuit as a whole, can adopt the chain mode that switches set or contact bank are connected in series, suppress cost and rise, the wiring realizing in control housing reduces.
And, in brake control section 22, be provided for controlling the 1st braking 22a of control algorithm portion that carries out identical computing and the 2nd braking 22b of control algorithm portion of brake equipment 7, braking is set simultaneously and controls the 22c of share storage portion, the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion control the 22c of share storage portion by braking, incoming signal and operation result are compared mutually, simultaneously when comparative result surpasses predetermined scope, from braking, control Department of Communication Force 22e output fault detection signal, thereby can detect the 1st braking 22a of control algorithm portion and the 2nd fault of braking the 22b self of control algorithm portion, can improve the reliability that braking is controlled.
Like this, by realization, reduce and connect up and improve reliability, can save the man-hour of maintenance and the installation of equipment.
In addition, when making car 1 emergent stopping, the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion control the braking force of brake equipment 7, so that the deceleration/decel of car 1 reaches below predetermined value, simultaneously by output fault detection signal, deceleration/decel is controlled and to be made as invalidly, thereby take comfort can improve emergent stopping time, can further improve reliability simultaneously.
In addition, be used as the various signals that comprise from the signal of the 1st coder 8a and the 2nd coder 8b, and towing machine control part 21 and brake control section 22 between the leading section 23 that plays a role of interface, thereby can further reduce the wiring in control housing.
And, at leading section 23, be provided for obtaining the 1st front end operational part 23a that carries out identical computing and the 2nd front end operational part 23b of the rotative speed that drives rope sheave 5, the front end share storage 23c of portion is set simultaneously, the 1st front end operational part 23a and the 2nd front end operational part 23b are by the front end share storage 23c of portion, incoming signal and operation result are compared mutually, simultaneously when comparative result surpasses predetermined scope, from front end Department of Communication Force 23e output fault detection signal, thereby can detect the fault of the 1st front end operational part 23a and the 2nd front end operational part 23b self and the fault of the 1st coder 8a and the 2nd coder 8b, can improve the reliability of entire system.
Embodiment 2
Below, Fig. 6 means the constructional drawing of the lift appliance of embodiments of the present invention 2.In the drawings, operation controller 9 has towing machine control part 21 and front end/brake control section 24.Front end/brake control section 24 has the function of leading section 23 and the function of brake control section 22 of embodiment 1 simultaneously.And towing machine control part 21 and front end/brake control section 24 are housed in common control housing.
Front end/brake control section 24 has the 1st front end/braking control algorithm 24a of portion and the 24c of share storage portion is controlled in the 2nd front end/braking control algorithm 24b of portion, front end/braking, the 24d of signalling trouble portion is controlled in front end/braking and Department of Communication Force 24e is controlled in front end/braking.
The 1st front end/braking control algorithm 24a of portion has the 1st braking 22a of control algorithm portion of embodiment 1 and the function of the 1st front end operational part 23a.The 2nd front end/braking control algorithm 24b of portion has the 2nd braking 22b of control algorithm portion of embodiment 1 and the function of the 2nd front end operational part 23b.Other structures are identical with embodiment 1.
In this lift appliance, can reduce part count and structure is become simple, the miniaturization that can realize control housing reduces costs simultaneously.
Embodiment 3
Then, Fig. 7 means the constructional drawing of the lift appliance of embodiments of the present invention 3.In the drawings, leading section 23 does not have operational part and share storage portion, only has the 1st 23f of front end communication portion and the 2nd 23g of front end communication portion.And brake control section 22 arranges the 1st braking and controls Department of Communication Force 22f and the 2nd braking and control Department of Communication Force 22g and replace braking and control Department of Communication Force 22e.Thus, incoming signal and deceleration/decel control command signal send reception by the direct communication system of dual system.And, undertaken by a system in dual system with communicating by letter of towing machine control part 21.Other structures are identical with embodiment 1.
In this lift appliance, can reduce part count and structure is become simple, the miniaturization that can realize control housing reduces costs simultaneously.
Embodiment 4
Then, Fig. 8 means the constructional drawing of the lift appliance of embodiments of the present invention 4.In the drawings, at car door and a plurality of stop door, each open door sensor of two groups 31 is set, for detection of door opening state.And, at car 1, two groups of level transducers 32 are set, poor for the ladder of adjusting under door opening state between the ground of stop and the ground of car 1.From the signal of open door sensor 31 and level transducer 32, be imported into respectively corresponding the 1st front end operational part 23a and the 2nd front end operational part 23b.
The 1st front end operational part 23a and the 2nd front end operational part 23b, according to the signal from open door sensor 31 and level transducer 32, detect the situation of car 1 that drives under door opening state.And, the 1st front end operational part 23a and the 2nd front end operational part 23b, when mobile in the situation that carry out that flat bed when action is judged to be that car 1 is crossed predetermined flat bed region, make the 1st braking with electromagnetic relay 17 and the 2nd towing machine, with electromagnetic relay 18, disconnect with electromagnetic relay 14 and the 1st towing machine with electromagnetic relay 13 and the 2nd braking.
And the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion, when door opening state detected when car 1 is advanced in the situation that, make car 1 emergent stopping, implement the car 1 in emergent stopping action simultaneously or drive the deceleration/decel reduction of rope sheave 5 to control.
In this lift appliance, when car 1 being detected depart from flat bed region under door opening state, cut off the power supply to the 1st restraining coil 11 and the 2nd restraining coil 12 and towing machine motor 6 at once, thereby can improve reliability.And, can guarantee that courtyard portion and the space between the ground of stop of space between the ground of car 1 and the courtyard portion of stop or car 1 is larger.
In addition, in embodiment 4, in the situation that the rotative speed of door opening state and towing machine 4 detected, be more than setting value, also can utilize the 1st deceleration/decel master cock 15 and the 2nd deceleration/decel master cock 16 to control the electric current of the 1st restraining coil 11 and the 2nd restraining coil 12, so that the speed of towing machine 4 is followed target deceleration pattern.Thus, under the higher state of the speed of towing machine 4, also can reduce target deceleration pattern and brake, thereby the deceleration/decel can reduce emergency braking time.
And, also the operation controller of embodiment 49 can be made as to the such structure of embodiment 2,3.
In addition, in embodiment 4, make the 1st front end operational part 23a and the 2nd front end operational part 23b there is opening the door to advance and prevent function in flat bed action, but also can make the 1st braking 22a of control algorithm portion and the 2nd braking 22b of control algorithm portion there is this function.
In addition, also can make front end operational part 23a, 23b or the braking 22a of control algorithm portion, 22b there is other security monitoring function.For example, can additional compression end floor such car speed function for monitoring, prevent the approximating function of car of many car types elevator etc.
And main rope 3 can be used the rounded rope of section or section to be the belt conveyor of flats.
In addition, double system has been shown in above-mentioned example, but can has been also triple above multiplicated systems.

Claims (8)

1. a lift appliance, described lift appliance has:
Towing machine, it has the towing machine motor that drives rope sheave, makes described driving rope sheave rotation and the brake equipment that the rotation of described driving rope sheave is braked;
Suspension unit, it is wound on described driving rope sheave;
Car, it is suspended in midair by described suspension unit, the lifting by described towing machine;
The 1st speed detector and the 2nd speed detector, it produces respectively the detection signal corresponding with the rotation of described driving rope sheave;
Towing machine control part, it is according to controlling described towing machine motor from the detection signal of described the 1st speed detector and the 2nd speed detector; And
Brake control section, its basis is controlled described brake equipment from the detection signal of described the 1st speed detector and the 2nd speed detector,
Described towing machine control part has: towing machine control algorithm portion, and it,, according to the signal corresponding with described the 1st speed detector and the 2nd speed detector, carries out for controlling the computing of described towing machine motor; And towing machine control Department of Communication Force, its transmission of carrying out signal receives,
Described brake control section has: the 1st braking control algorithm portion, and it,, according to the signal corresponding with described the 1st speed detector, carries out for controlling the computing of described brake equipment; The 2nd braking control algorithm portion, it,, according to the signal corresponding with described the 2nd speed detector, carries out for controlling the computing of described brake equipment; Share storage portion is controlled in braking, and it stores the shared data of described the 1st braking control algorithm portion and the 2nd braking control algorithm portion; And braking control Department of Communication Force, itself and described towing machine are controlled the transmission reception of carrying out signal between Department of Communication Force,
Described the 1st braking control algorithm portion and the 2nd braking control algorithm portion control share storage portion by described braking, incoming signal and operation result are compared mutually, and when comparative result surpasses predetermined scope, make described braking control Department of Communication Force and control Department of Communication Force output fault detection signal to described towing machine.
2. lift appliance according to claim 1, wherein, when making described car emergent stopping, described the 1st braking control algorithm portion and the 2nd braking control algorithm portion control the braking force of described brake equipment, so that the deceleration/decel of described car is below predetermined value, and by the described fault detection signal of output, it is invalid that the deceleration/decel control of described car is made as.
3. lift appliance according to claim 1, wherein, described lift appliance also has leading section, this leading section has to be controlled Department of Communication Force and described braking at described towing machine and controls and between Department of Communication Force, carry out the front end communication portion that the transmission of signal receives, and as comprising from the various signals of the signal of described the 1st speed detector and the 2nd speed detector and the interface between described towing machine control part and described brake control section, plays a role.
4. lift appliance according to claim 3, wherein,
Described leading section also has: the 1st front end operational part, and it is according to the rotative speed that carrys out to drive described in computing rope sheave from the signal of described the 1st speed detector; The 2nd front end operational part, it is according to the rotative speed that carrys out to drive described in computing rope sheave from the signal of described the 2nd speed detector; And front end share storage portion, it stores the shared data of described the 1st front end operational part and the 2nd front end operational part,
Described the 1st front end operational part and the 2nd front end operational part, by described front end share storage portion, compare mutually incoming signal and operation result, and when comparative result surpasses predetermined scope, make described front end communication portion output fault detection signal.
5. lift appliance according to claim 4, wherein, described leading section is additional treatments data constantly in the operation result of described the 1st front end operational part and the 2nd front end operational part, send to described brake control section.
6. lift appliance according to claim 4, wherein, described leading section additional fault in described fault detection signal produces the information at position, sends to described brake control section.
7. lift appliance according to claim 4, wherein,
Described lift appliance also has:
Open door sensor, it detects door opening state; And
Level transducer, it is poor for the ladder of adjusting under door opening state between the ground of stop and the ground of described car,
Described the 1st front end operational part and the 2nd front end operational part be the signal from described open door sensor and described level transducer in basis, be judged to be in the situation that car described in flat bed action is crossed predetermined flat bed region and moves, cut off the power supply of described towing machine motor and described brake equipment.
8. lift appliance according to claim 1, wherein,
Described lift appliance also has the open door sensor that detects door opening state,
The in the situation that described the 1st braking control algorithm portion and the 2nd braking control algorithm portion detecting door opening state in described car is advanced, make described car emergent stopping, and the deceleration/decel of implementing in emergent stopping action is controlled.
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EP2246285A1 (en) 2010-11-03
KR20100085159A (en) 2010-07-28
CN101910041A (en) 2010-12-08
EP2246285B1 (en) 2018-06-20
KR101189952B1 (en) 2012-10-12
WO2009107218A1 (en) 2009-09-03
EP2246285A4 (en) 2014-07-16
JPWO2009107218A1 (en) 2011-06-30

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