CN101678996A - Elevator - Google Patents
Elevator Download PDFInfo
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- CN101678996A CN101678996A CN200880019025A CN200880019025A CN101678996A CN 101678996 A CN101678996 A CN 101678996A CN 200880019025 A CN200880019025 A CN 200880019025A CN 200880019025 A CN200880019025 A CN 200880019025A CN 101678996 A CN101678996 A CN 101678996A
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- Prior art keywords
- car
- door
- opening
- braking force
- judged
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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
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/32—Control 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
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- 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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Control (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
An elevator apparatus, which can gently stop a car when causing the car normally running to make an emergency stop, and can suddenly stop the car when causing the car running with a door open to makean emergency stop, is provided. For this purpose, when the car of an elevator which is normally running is caused to make an emergency stop, a braking device is caused to generate a braking force while a deceleration of the car is controlled. Meanwhile, when a predetermined running condition with a door open of the car is determined, the braking device is caused to generate a braking force so thata stopping distance of the car becomes shorter than that in the case of causing the car which is normally running to make an emergency stop.
Description
Technical field
The present invention relates to lift appliance.
Background technology
Lift appliance general using master rope hangs the car and the counterweight of elevator in the transfusion bottle mode, and simultaneously by this main rope volume is hung on the driving rope sheave of towing machine, the rotation of controlling and driving rope sheave thus makes car advance and stop.And, the user take the elevator of said structure or leave said structure elevator during, described car stops at predetermined stop position, the car of this moment keeps stopping by the confining force that stops of brake equipment that being located at described towing machine.That is, when the common running of elevator, described brake equipment moves when car stops.
On the other hand, when emergency situation, described brake equipment also moves when car is advanced, and car is promptly stopped.About the prior art of this lift appliance, for example proposed make car when travel condition begins promptly to stop, the braking force of control brake device can not cause the technology (with reference to patent documentation 1) of human discomfort to the user thus so that car stops gradually.
Patent documentation 1: Japanese kokai publication hei 7-206288 communique
In lift appliance, as mentioned above, the brake equipment action is general when car stops, and car can not begin to advance under the state of opening door.But, for example in the lift appliance that has again story-leveling function, when car is stopped, proofread and correct car position, so car low speed under door opening state is advanced.In addition, said story-leveling function again, the span that is meant main rope increases and decreases according to the variation of the passengers quantity in the car, from the dynamic correction car position, makes car return to the function of described predetermined stop position when car departs from predetermined stop position.
In addition, carrying out this flat bed when action again, when car need promptly stop, as patent documentation 1 is recorded and narrated, car is stopped if wanting gradually, certainly the stopping distance of car can be elongated, and according to circumstances, the problem at the interval between elevator doorway and the elevator floor stops can not be fully guaranteed in existence.
Summary of the invention
The present invention proposes in order to address the above problem, its purpose is to provide a kind of lift appliance, when car is promptly stopped under common travel condition, car is stopped gradually, making car, car is stopped rapidly from the travel condition of opening the door, when promptly carrying out again promptly stopping under the travel condition of flat bed action.
Lift appliance of the present invention has: car, and it is lifting in elevator hoistways; Brake equipment, its car in running usually stops car when stopping; Control command portion, when the car of advancing was usually promptly stopped, the deceleration/decel of this control command portion control car made brake equipment produce braking force simultaneously; With the judging part of advancing that opens the door, it to shorten the mode of the stopping distance of car than the situation that the car of advancing is usually promptly stopped, making brake equipment produce braking force under the situation of the predetermined travel condition of opening the door that is judged to be car.
In addition, lift appliance of the present invention has: car, and it is lifting in elevator hoistways; Brake equipment, its car in running usually stops car when stopping; Control command portion, when the car of advancing was usually promptly stopped, the deceleration/decel of this control command portion control car made brake equipment produce braking force simultaneously; Door open and-shut mode detecting unit, the open and-shut mode of its detecting gate; Speed detection unit, it detects the speed of car; With the judging part of advancing that opens the door, it is according to the testing result of door open and-shut mode detecting unit and the testing result of speed detection unit, the state of the elevator when car is promptly stopped, the control of the braking force of change brake equipment, when being judged to be predetermined door opening state, open the door and advance judging part to shorten the mode of the stopping distance of car than the situation that is not judged as predetermined door opening state, make brake equipment produce braking force, be that predetermined value is when following simultaneously in the speed that is judged to be predetermined door opening state and car, with than the mode of the speed that is judged to be predetermined door opening state and car, make brake equipment produce braking force above the stopping distance of the situation shortening car of predetermined value.
According to the present invention, when car is promptly stopped under common travel condition, car is stopped gradually, making car, car is stopped rapidly from the travel condition of opening the door, when promptly carrying out again promptly stopping under the travel condition of flat bed action.
Description of drawings
Fig. 1 is the integral structure figure of the lift appliance of expression embodiments of the present invention 1.
Fig. 2 is the constructional drawing of main portion of the lift appliance of expression embodiments of the present invention 1.
Fig. 3 is the figure of action that is used to illustrate the lift appliance of embodiments of the present invention 1.
Fig. 4 is the figure of action that is used to illustrate the lift appliance of embodiments of the present invention 1.
Fig. 5 is the diagram of circuit of a part of action of the lift appliance of expression embodiments of the present invention 4.
Fig. 6 is the figure of action that is used to illustrate the lift appliance of embodiments of the present invention 4.
Fig. 7 is the figure that is used to illustrate the action when the control safety relay limits stopping distance when promptly stopping.
Fig. 8 is the figure that is used to illustrate another action when the control safety relay limits stopping distance when promptly stopping.
Fig. 9 is the figure that is used to illustrate another action when the control safety relay limits stopping distance when promptly stopping.
Label declaration
1 car; 2 counterweights; 3 main ropes; 4 towing machines; 5 drive rope sheave; 6 electrical motors; 7 brake equipments; 8 control setups; 9 braking force control systems; 10 brake wheels; 11 brake shoe brake cheek (brake collar) are used ferrodo; 12 restraining coils; 13 control command portions; 14 accelerographs; 15 meausring apparatuses; 16 towing machine coders; 17 governors; 18 governor coders; 19 judging parts of advancing that open the door; 20 door opening state detection units; 21 travel condition detection units; 22 open-close detection sensor; 23 floor position sensors; 24 safety relaies; 25 boundary lines; 26 oblique line portions; 27 boundary lines; 28 oblique line portions; 29 boundary lines.
The specific embodiment
In order to be described more specifically the present invention, be described with reference to accompanying drawing.In addition, in each accompanying drawing,, and suitably simplify and even omit its repeat specification the identical label of identical or cooresponding part mark.
Fig. 1 is the integral structure figure of lift appliance of expression embodiments of the present invention 1, and Fig. 2 is the constructional drawing of main portion of the lift appliance of expression embodiments of the present invention 1.In Fig. 1 and Fig. 2,1 is illustrated in the car of lifting in the elevator hoistways, 2 are illustrated in the hoistway counterweight that carries out lifting along the direction opposite with car 1, and 3 expressions are hung the main rope of car 1 and counterweight 2 in the transfusion bottle mode, and 4 expressions drive the elevator hoist of cars 1 by main rope 3.In addition, described main rope 3 also can be other suspension units such as belt conveyor.
Described towing machine 4 for example constitutes by driving rope sheave 5, electrical motor 6 and brake equipment 7.And the rotation that utilizes electrical motor 6 control volume to hang the driving rope sheave 5 of described main rope 3 makes car 1 advance (lifting) and stop thus.The control setup of elevator single-piece operation control is administered in 8 expressions, sends action command at electrical motor 6 by this control setup 8.And when user's using escalator and following elevator, car 1 stops at predetermined stop position.The car 1 of this moment keeps stopping by the confining force that stops of described brake equipment 7.9 expressions come the braking force control system of the action of control brake device 7 according to from the incoming signal of control setup 8 etc.
At this, the concrete structure of described brake equipment 7 is described.
10 expressions and the brake wheel that drives rope sheave 5 interlock rotations, 11 expressions use ferrodo by the brake shoe brake cheek (brake collar) that not shown elastomeric screen resilience is imposed all the time to the power of brake wheel 10 sides, and 12 expression generation electromagnetic forcees also make brake shoe brake cheek (brake collar) leave the restraining coil of brake wheel 10 with ferrodo 11.When the car 1 under common running is stopped, brake equipment 7 by by with brake shoe brake cheek (brake collar) with ferrodo 11 by being pressed in the friction force that produces on the brake wheel 10, stop the rotation that drives rope sheave 5, car 1 maintenance is stopped.And when car 1 was advanced, the electromagnetic force by being produced by restraining coil 12 made brake shoe brake cheek (brake collar) leave brake wheel 10 with ferrodo 11, made driving rope sheave 5 be in the state that freely rotates.
On the other hand, when the car 1 of advancing was usually promptly stopped, described braking force control system 9 made brake equipment 7 actions according to the instruction that receives from control setup 8, and car 1 is braked.At this moment, braking force control system 9 is with reference to the state of car 1, and computing makes car 1 stop needed speed and deceleration/decel gradually.And braking force control system 9 is according to this operation result, and the control deceleration/decel makes brake equipment 7 produce braking force so that car 1 stops gradually simultaneously.That is, lift appliance as shown in Figure 1 is such, and when brake equipment 7 adopted magnet stoppers, control imposed on the voltage of restraining coil 12, regulate a brake shoe brake cheek (brake collar) with ferrodo 11 by the power that is pressed in the power (braking force) on the brake wheel 10.
Specifically, the above-mentioned action of braking force control system 9 is carried out by the control command portion 13 of the braking force of control brake device 7.Control command portion 13 for example compares the dbjective state and the current state of car 1, and the power of regulating braking force is so that it follows the dbjective state of car 1.
The current state of above-mentioned car 1 can be according to judging from the status signal of control setup 8 with from the status signal of car 1.At this, described status signal can utilize the signal of the sensor of directly being located at car 1 etc., also can utilize the signal that is located at the sensor at the position of car 1 interlock etc.The said sensor of directly being located at car 1, be meant the courtyard portion that for example is located at car 1 accelerograph 14, be located at meausring apparatus 15 between car frame and main rope 3 ends etc.And the said sensor that is located at the position of car 1 interlock for example is meant towing machine coder 16, is located at the governor coder 18 of governor 17 etc.
Below, according to Fig. 3 (Fig. 3 a～Fig. 3 c), the action the when car 1 of advancing is usually promptly stopped to be described.Fig. 3 is the figure of action that is used to illustrate the lift appliance of embodiments of the present invention 1, car position when Fig. 3 a represents to make the car 1 of advancing usually under the state of closing the door promptly to stop over time, Fig. 3 b represents car speed at this moment over time, and Fig. 3 c represents car deceleration/decel at this moment over time.
Though in the quantity of state difference shown in Fig. 3 a～Fig. 3 c, each mark of A～D represents that the quantity of state of identical state of the system changes.That is, in the drawings, A acts under the state of acceleration side corresponding to the car 1 in relative the advancing of weight difference of car 1 and counterweight 2, makes brake equipment 7 produce maximum braking force, the situation that car 1 is stopped rapidly.And B acts under the state of deceleration side corresponding to the car 1 in relative the advancing of weight difference of car 1 and counterweight 2, makes brake equipment 7 produce maximum braking force, the situation that car 1 is stopped rapidly.Relative therewith, C is corresponding to the braking force of control brake device 7 under the state identical with A, the situation that car 1 is stopped gradually, and D is corresponding to the braking force of control brake device 7 under the state identical with B, the situation that car 1 is stopped gradually.
According to Fig. 3 a～Fig. 3 c as can be known, make the deceleration/decel of car 1 follow desired deceleration, car 1 is stopped gradually, and can not bring human discomfort the user by control brake power.In this case, shown in Fig. 3 a, the distance that car 1 is advanced when stopping certainly can be elongated.But when advancing usually, car door and stop door are fully closed, so even stopping distance is elongated, also can not have problems.
On the other hand, in braking force control system 9, except described control command portion 13, also being provided with the opens the door judging part 19 of advancing.This judging part 19 of advancing of opening the door is to be used to detect the unit that car 1 is in the predetermined travel condition of opening the door, according to be judged as described predetermined opening the door during travel condition from the incoming signal of control setup 8 etc., be used to the instruction that car 1 is stopped rapidly to 13 outputs of control command portion.That is, open the door and advance judging part 19 by detecting the situation that car 1 is in the predetermined travel condition of opening the door,, make brake equipment 7 produce braking forces to shorten the mode of the stopping distance of car 1 than the above-mentioned situation that the car 1 of advancing is usually promptly stopped.
The judging part 19 of advancing of opening the door for example is made of door opening state detection unit 20 and travel condition detection unit 21.The state that door opening state detection unit 20 decision gates are being opened.In addition, about the judgement of door opening state can be by having utilized detecting gate the whole bag of tricks of door open and-shut mode detecting unit of open and-shut mode realize.For example, can utilize the detection signal etc. of sensor (not shown) of the action of the electric current of detection signal, actuator that opposite house drives of door open-close detection sensor 22 of motion of direct detecting gate and voltage, the described actuator of detection, judge door opening state.
Specifically, when utilizing the detection signal of door open-close detection sensor 22, can be arranged on door open-close detection sensor 22 on the car door, also can be arranged on the stop door.But, because the stop door is arranged on each elevator floor stops, so when being arranged on door open-close detection sensor 22 on the stop door, need be arranged on the stop door of each floor.On the other hand, when being arranged on the car door, can only be arranged on a place, can constitute at a low price and installation property and the good advantage of maintainability so have to door open-close detection sensor 22.
In addition, the electric current of the actuator that drives according to opposite house and the variation of voltage have judged whether to produce the torque of keeping the state of closing the door, and perhaps the torque during the detecting gate on-off action is judged as over time and closes the door, also can judge door opening state thus.In addition, also can be with reference to control coder of described actuator and the motion that the resolver signal comes detecting gate, and judge door opening state.
On the other hand, described travel condition detection unit 21 is judged the travel condition of car 1.The judgement of travel condition can utilize the travel condition detecting unit of the travel condition that detects car 1 to detect position, speed and the deceleration/decel of car 1, realizes by the whole bag of tricks.For example, according to signal, judge the travel condition of car 1 from above-mentioned accelerograph 14, meausring apparatus 15, towing machine coder 16, governor coder 18 or floor position sensor 23.In addition, these signals not necessarily all need.That is,,, just can judge easily whether car 1 is in predetermined travel condition by calculating the speed of car 1 as long as can obtain at least one signal.
More than illustrated by door opening state detection unit 20 and travel condition detection unit 21 and constituted the situation of judging part 19 of advancing of opening the door, the judging part 19 of advancing as long as open the door has above-mentioned detection unit 20 and 21 both sides' function, for example also can utilize the decision method of the following stated to detect the predetermined travel condition of opening the door.When being used to the signal of self-acceleration instrument 14, by its size is carried out integration and as with work such as the cooresponding signal of speed, only be used to the signal of self-acceleration instrument 14, can judge whether car 1 is in the predetermined travel condition of opening the door.And, changes in weight in the car of expressing 1 when meausring apparatus 15 can detect car 1 acceleration and deceleration.Therefore, by being used to signal, be acceleration and the deceleration that benchmark detects car 1 with door on-off action etc. from weighing device 15, can judge also whether elevator is in common travel condition.Described floor position sensor 23 detects car 1 and departs from stop position to a certain degree above situation and bias thereof.Therefore,, be judged as car 1 and under door opening state, depart from stop position and reach more than the certain distance, also can be judged to be the predetermined travel condition of opening the door by being used to signal from floor position sensor 23.
Like this, the open the door judging part 19 of advancing can utilize the whole bag of tricks to judge the travel condition of opening the door.Therefore, be used to judge when opening the door a plurality of detecting device of advancing when being provided with at lift appliance, the judging part 19 of advancing of opening the door can detected by these whole detecting devices when opening the door travel condition, be judged as car 1 and be in the predetermined travel condition of opening the door, also can be judged as car 1 and be in the predetermined travel condition of opening the door detecting by any detecting device when opening the door travel condition.Perhaps, can also constitute according to the quantity of the detecting device that detects the travel condition of opening the door or according to the result of most detecting devices and determine, judge whether car 1 is in the predetermined travel condition of opening the door.
Under situation shown in Figure 2, for example, when being judged to be predetermined door opening state by door opening state detection unit 20 and being judged to be the predetermined travel condition of car 1 by travel condition detection unit 21, the judging part 19 of advancing of opening the door is judged as car 1 and is in the travel condition of opening the door.And, detect opening the door during travel condition of car 1 at the judging part 19 of advancing by opening the door, the braking force of control command portion 13 control brake devices 7, perhaps stop braking force control, make brake equipment 7 produce maximum braking force, so that car 1 can stop with necessity distance of enough weak points.
Specifically, be judged as predetermined opening the door during travel condition at the judging part 19 of advancing by opening the door, big value when control command portion 13 is set at desired deceleration than promptly stopping under the travel condition of closing the door, or cut off energising to magnet stopper, make thus to produce big braking force.And, at as shown in Figure 2 braking force control system 9 like that when conducting parts is arranged with safety relay 24, also can constitute according to from control command portion 13 or the instruction of judging part 19 of advancing of opening the door, safety relay 24 is disconnected, cut off energising reliably magnet stopper.
At this, Fig. 4 (Fig. 4 a～Fig. 4 c) is the figure of action that is used to illustrate the lift appliance of embodiments of the present invention 1.Specifically, Fig. 4 a represents to make and opens the door the car 1 of the advancing car position when promptly stopping over time, the car speed that Fig. 4 b represents this moment over time, the car deceleration/decel that Fig. 4 c represents this moment is over time.
Though in the quantity of state difference shown in Fig. 4 a～Fig. 4 c, each mark of E～F represents that the quantity of state of identical state of the system changes.That is, E is corresponding under the state of advancing that begins to open the door after stopping at correct stop position at car 1, the braking force of control brake device 7, the situation that car 1 is stopped gradually.F is corresponding to the braking force that makes brake equipment 7 generation maximums under the state identical with E, and the situation that car 1 is stopped rapidly.In addition, the time shaft of Fig. 4 a～Fig. 4 c is identical, the point of advancing beginning to open the door is as the starting point of advancing of opening the door, detected the predetermined point that opens the door travel condition and promptly stop by brake equipment 7 beginnings by braking force control system 9, as promptly stopping to move starting point.
According to Fig. 4 a～Fig. 4 c as can be known, by stopping the control of braking force, make brake equipment 7 produce maximum braking force (perhaps, utilizing the braking force of predetermined method control brake device 7), compare when car 1 is stopped gradually, can significantly shorten the stopping distance of car 1.Therefore,, car 1 is stopped at once, can fully guarantee the interval between car doorway and the elevator floor stops even when carrying out again at lift appliance entering urgent halted state in the process of flat bed action.
According to the embodiment of the present invention 1, when the car 1 of advancing is usually promptly stopped, car 1 is stopped gradually, can not produce the situation that the user is caused human discomfort.And, when the car 1 of advancing of opening the door is promptly stopped, car 1 is stopped rapidly, can fully guarantee the interval between car doorway and the elevator floor stops.In addition, in above-mentioned embodiment 1, illustrated the judging part 19 of advancing of opening the door is arranged on braking force control system 9 in-to-in situations, but also the unit with identical function can be arranged on the outside.And, during the signal of the decision signal that for example comprising in the signal from control setup 8 is equivalent to open the door advances, only utilize this signal can judge the predetermined travel condition of opening the door, also can be embodied in the operation to the transmission of control command portion 13 and safety relay 24.
When the car 1 under making the predetermined travel condition of opening the door promptly stops, can utilizing following formula to calculate the maximum speed V (hereinafter referred to as " upper limit speed of advancing opens the door ") that can realize.
(formula 1)
α(t)＝F
mot+F
nub-F(t)
Each constant in each constant in the following formula and the following formula that illustrates is that action with car 1 is a benchmark.Wherein, as the acceleration/accel of the car 1 of independent variable, in the moment when t1 represents to begin the flat bed action again, t2 is illustrated in to open the door and advances that car speed reaches the maximum moment, F after the urgent halt instruction of judging part 19 outputs t constantly for α (t) expression
MotThe power of expression towing machine 4 makes the maxim of the power that the position of car 1 and interlock thereof quickens, F
NubThe weight overbalance of expression car 1 and counterweight 2 makes the maxim of the power that the position of car 1 and interlock thereof quickens, F (t) expression t constantly as the minimum value of the braking force of the drg of independent variable.And the independent variable t in each function represents to be made as when promptly stopping to begin benchmark moment of 0 constantly.In addition, the position of said and described car 1 interlock refers to drive parts such as car 1, counterweight 2, Capstan rotor, rope.
In addition, following formula is the equilibrium of forces formula after the urgent halt instruction of output, determines above-mentioned t2 in view of the above.
(formula 2)
F
mot+F
nub-F(t2)＝0
The item F that in following formula, has the power of expression towing machine 4
Mot, but when promptly stopping to move, owing to stop the transmission of power of towing machine 4, so in common elevator, be made as F
Mot=0.
In addition, t1 determines according to following formula.
(formula 3)
Wherein, M represents total inertial mass at relevant car 1 and interlock position thereof, and X represents playing the maximum amount of movement of the car 1 till the urgent halt instruction of judging part 19 outputs of advancing that opens the door from beginning flat bed action again.
And, because the normally relatively short distance of above-mentioned amount of movement (bias) X, be smaller speed so calculate the upper limit speed V that advances of opening the door according to following formula.Therefore, when under common travel condition, promptly stopping, the rate of onset of the car 1 upper limit speed V (with reference to Fig. 3 b) that in most of the cases advances greater than opening the door.And, when the travel condition of opening the door begins promptly to stop, the rate of onset of the car 1 upper limit speed V (with reference to Fig. 4 b) that in either case all advances less than opening the door.
Therefore, the judging part 19 of advancing of opening the door can be a benchmark with the described upper limit speed V that advances of opening the door also, judges the predetermined travel condition of opening the door of car 1.In addition, when this situation, need the speed detection unit of the speed of detection car 1.And, when car 1 is promptly stopped (for example, in the situation of having imported urgent halt instruction from control setup 8, with when car 1 should stop, detecting the situation of advancing), by the speed of the detected car 1 of described speed detection unit for predetermined speed more than and under the described situation below the upper limit speed V of advancing of opening the door, think and to advance opening the door, the judging part 19 of advancing so open the door shortens the mode of the stopping distance of car 1 with the situation of the upper limit speed V that advances greater than opening the door than the speed that detects car 1, makes brake equipment 7 produce braking forces.That is, irrelevant with the door opening state of reality when this situation, be judged as car 1 and be in the predetermined travel condition of opening the door, car 1 is promptly stopped.By carrying out this action, do not need to judge door opening state according to waiting from the signal of door open-close detection sensor 22.
In addition, in above-mentioned decision method, when the car 1 of advancing is usually promptly stopped, might producing the situation that being judged to be opens the door advances and car 1 is stopped rapidly.But, when this situation,,, car 1 was stopped before braking force fully acts on so the time when stopping is shorter because the car 1 when stopping to be advanced with very little speed rapidly.Therefore, can not cause human discomfort to the user.
Sending under the situation of urgent halt instruction from control setup 8 grades, at the judging part 19 of advancing by opening the door (door opening state detection unit 20) when being judged to be predetermined door opening state, braking force control system 9 makes brake equipment 7 produce braking forces to shorten the mode of the stopping distance of car 1 when not detecting door opening state.That is, irrelevant with the travel condition of the car 1 of reality when this situation, be judged as car 1 and be in the predetermined travel condition of opening the door, car 1 is stopped rapidly.Therefore, can car 1 be stopped.According to the embodiment of the present invention 3, need not judge travel condition by braking force control system 9, have can simplified structure advantage.
Elevator is when advancing usually, and door is closed fully.But, also can infer elevator when car 1 is advanced, the situation that the passenger in the car 1 deliberately opens door.When this situation, the action of the safety system of elevator promptly stops car 1.
To because this former thereby promptly stopping of carrying out, if be suitable for the method that embodiment 2 discloses, difference according to circumstances then might cause the car 1 long distance of advancing under the state that door is being opened.For example, the speed of the car 1 when the passenger deliberately opens door is advanced predetermined speed such as upper limit speed V when following for opening the door, by stopping the control of usefulness rapidly, car 1 is stopped with short stopping distance.Therefore, problem can not take place.But, when the speed of the car 1 when door is being opened surpasses described predetermined speed, stop gradually, and be not particularly limited the braking force of ground control brake device 7 in order to make car 1, make that distance, the travel distance that opens the door when car 1 stops is elongated.
On the other hand,, when being judged to be door opening state, irrespectively stop the control of usefulness rapidly, might produce the excessive deceleration/decel on the necessary degree with the speed of the car 1 of this moment if carrying out the described method that embodiment 3 discloses that is suitable for when promptly stopping.For example, at conventional lift shown in Figure 1, be in the elevator of the structure that hangs in the transfusion bottle mode by main rope 3 of car 1 and counterweight 2, usually rotating driving rope sheave 5 is carried out forced brake, stop rapidly thus.That is, drive rope sheave 5, utilize to drive rope sheave 5 and volume and hang over friction force between the main rope 3 that drives on the rope sheave 5, make car 1 deceleration and stop by rapid braking.
Therefore, when car 1 promptly stopped, difference according to circumstances produced between driving rope sheave 5 and main rope 3 sometimes and skids.Generally, the speed of car 1 is big more, and this amount of skidding, promptly to drive the difference of amount of movement (advance amount) of the rotation amount of rope sheave 5 and main rope 3 big more.Therefore, when the speed of the car 1 when the passenger opens door is big, skid owing between driving rope sheave 5 and main rope 3, produce, so the stopping distance of car 1 is elongated sometimes.
The purpose of embodiment 4 is that three kinds of states of corresponding elevator suitably change the control of when car 1 is promptly stopped brake equipment 7 being carried out, and address the above problem thus.Below, the concrete action of the lift appliance of this embodiment is described.
Fig. 5 is the diagram of circuit of a part of action of the lift appliance of expression embodiments of the present invention 4.In braking force control system 9, when having sent urgent halt instruction (S101), advance in the judging part 19 opening the door, at first the open and-shut mode of decision gate (S102) by control setup 8 grades.At this, (S102: not), 9 pairs of brake equipments of braking force control system 7 do not carry out the control of corresponding the 1st elevator state (hereinafter referred to as " situation 1 ") when being judged as predetermined door opening state by door opening state detection unit 20.
On the other hand, be judged to be by door opening state detection unit 20 when being the door opening state of being scheduled to, at the speed of further judging car 1 in the judging part 19 upper limit speed V (S103) that whether advances that advances that opens the door greater than opening the door.At this, be to open the door to advance upper limit speed V when following (S103: be) in the speed that is judged to be car 1 by travel condition detection unit 21,9 pairs of brake equipments of braking force control system 7 carry out the control of corresponding the 2nd elevator state (hereinafter referred to as " situation 2 ").In addition, (S103: not), 9 pairs of brake equipments of braking force control system 7 are implemented the control of corresponding the 3rd elevator state (hereinafter referred to as " situation 3 ") when the speed that is judged to be car 1 by travel condition detection unit 21 is advanced upper limit speed V greater than opening the door.
Below, the concrete control that braking force control system 9 o'clock carries out in situation 1～3 is described.
＜situation 1 (situation that the car 1 under the state of closing the door is promptly stopped) 〉
For car 1 is stopped gradually, braking force control system 9 is the braking force of control brake device 7 ad lib.If the state that is fully closed of door, then the stopping distance of car 1 prolongs also no problemly, because if stopping distance is set restriction, can not fully obtain to make the effect of the original purpose that car 1 stops gradually, promptly brake equipment 7 is controlled sometimes.
In addition, think, will cause car 1 to enter into the end of hoistway, utilize safety devices such as energy disperser that car 1 is stopped if near the floor car 1 is slowed down excessively lentamente endways.Even when this situation, aspect safety, can not have problems yet.But, in order not make the action of described safety device, also can be in the scope of the effect that can obtain to make car 1 to stop gradually, the prolongation of restriction stopping distance.
＜situation 2 (situation that the car 1 that the speed below the predetermined speed such as the upper limit speed V that advances under predetermined door opening state and to open the door is advanced promptly stops) 〉
The braking force of braking force control system 9 control brake devices 7, perhaps stop braking force control, make brake equipment 7 produce maximum braking force, so that car 1 can stop with necessity distance of enough weak points.When this situation, because promptly the speed of the car 1 when stopping is less, so car 1 stopped before the braking force of brake equipment 7 rises to maximum.Therefore, the deceleration/decel that produces when promptly stopping is less, is difficult to produce between driving rope sheave 5 and main rope 3 skid.And because the speed of car 1 is slower, so even hypothesis is skidded above-mentioned the generation between the two, this amount of skidding is also smaller, stopping distance can not prolong.And, owing to consciously car 1 is slowed down rapidly, so between car doorway and elevator floor stops, can guarantee enough intervals.
＜situation 3 (make under predetermined door opening state and to surpass the situation that car 1 that the speed of predetermined speeds such as upper limit speed V advances promptly stops of advancing of opening the door) 〉
Braking force control system 9 restriction stopping distances are so that car 1 stops in the distance that allows, and the braking force of while control brake device 7 is not so that car 1 slows down not produce the deceleration/decel that skids between driving rope sheave 5 and the main rope 3.This is that the distance of advancing under the state of opening at door is applied restriction is elongated to prevent stopping distance, prevents simultaneously owing to skidding and make stopping distance elongated driving between rope sheave 5 and the main rope 3 generation.
Like this, braking force control system 9 (judging part 19 of advancing opens the door) is judged to be when car 1 promptly stops when being the door opening state of being scheduled to, to shorten the mode of the stopping distance of car 1, make brake equipment 7 produce braking forces than being judged to be the situation that is not the door opening state of being scheduled to.And, be judged to be when being the door opening state of being scheduled to, when the predetermined speed such as upper limit speed V of advancing for opening the door in the speed of car 1 is following,, make brake equipment 7 produce braking forces to shorten the mode of the stopping distance of car 1 than the situation that surpasses above-mentioned predetermined speed.
Owing to have a this function, different during with situation 1 when above-mentioned situation 3, make stopping distance have restriction.Below, the concrete grammar when illustrating to stopping distance setting restriction.
Fig. 6 (Fig. 6 a～Fig. 6 c) is the figure of action that is used to illustrate the lift appliance of embodiments of the present invention 4.Specifically, the car position when Fig. 6 a represents car 1 is promptly stopped over time, Fig. 6 b represent this moment car speed over time, Fig. 6 c represent this moment the car deceleration/decel over time.
Though the quantity of state difference of representing in Fig. 6 a～Fig. 6 c, each mark of A～D are represented the quantity of state of identical state of the system respectively and are changed.That is, A makes brake equipment 7 produce maximum braking force, the situation that car 1 is stopped rapidly corresponding to the control of not carrying out braking force among the figure.The control of the braking force that B carries out when brake equipment 7 being implemented in above-mentioned situation 3, the situation that car 1 is stopped.And, the control of the braking force that C carries out when brake equipment 7 being implemented in above-mentioned situation 1, the situation that car 1 is stopped.
According to Fig. 6 a～Fig. 6 c as can be known, when the situation shown in the B, because the stopping distance of car 1 is provided with restriction, so the big value of desired deceleration when its desired deceleration is set to than situation shown in the C.In addition, control command portion 13 is when the arbitrary situation shown in B and the C, and all the control brake device 7, so that actual deceleration/decel is followed the desired deceleration that sets.Therefore, the velocity variations of the car 1 when promptly stopping, the situation shown in the B has greater than the slope of situation shown in the C (degree of dip among Fig. 6 b), and the stopping distance of the stopping distance during B during certainly than C is short.
In addition, the control of the braking force that carries out when brake equipment 7 being implemented in above-mentioned situation 2, the situation that car 1 is stopped is corresponding to the situation shown in the F that uses Fig. 4 explanation in embodiment 1.When this situation 2, when guaranteeing reliably between car doorway and the elevator floor stops under the situation of sufficient distance, also can constitute the higher desired deceleration of setting shown in situation 3, come the braking force of control brake device 7.
About the restriction of the stopping distance shown in the situation 3, also can carry out according to the action of control command portion 13.And, when braking force control system 9 has structure shown in Figure 2, judging part 19 grades of also can advancing operation (control) safety relay 24, the function of the above-mentioned stopping distance of realization restriction thus by opening the door.
Below, according to Fig. 7～Fig. 9, illustrate by safety relay 24 being carried out the concrete grammar and the effect thereof of open and close controlling when limiting stopping distance.
Fig. 7 (Fig. 7 a～Fig. 7 c) is used to illustrate control the figure that safety relay limits the action of stopping distance when promptly stopping.Specifically, the car position when Fig. 7 a represents car 1 is promptly stopped over time, Fig. 7 b represent this moment car speed over time, Fig. 7 c represent this moment the car deceleration/decel over time.Though the quantity of state difference of representing in Fig. 7 a～Fig. 7 c, each mark of A～D and B ' are represented the quantity of state of identical state of the system respectively and are changed.And Fig. 7 b illustrates boundary line 25 and utilizes slow zone, this boundary line of the velocity ratio shown in the oblique line portion 26 25.In addition, will narrate in the back about the particular case of above-mentioned boundary line 25.
About the open and close controlling of safety relay 24, according to being undertaken by the speed of the detected current car 1 of speed detection unit and the result that the speed shown in the above-mentioned boundary line 25 compares.Specifically, advance judging part 19 by opening the door to the instruction of safety relay 24 output actions, make when the speed of current car 1 is slower than the speed shown in the boundary line 25 closed safety relay 24, when the speed of current car 1 is faster than the speed shown in the boundary line 25, disconnect safety relay 24.
Below, the A～D among instruction diagram 7a～Fig. 7 c and each state variation shown in the B '.
A acts under the state of acceleration side corresponding to the car 1 in relative the advancing of weight difference of car 1 and counterweight 2, does not carry out the control of braking force, and makes brake equipment 7 produce maximum braking force, the situation that car 1 is stopped rapidly.B descends corresponding to towability under the state shown in the A, is driving the situation that generation is skidded between rope sheave 5 and the main rope 3.That is, B is illustrated in the state when car 1 least slows down in this elevator device.The quantity of state of the driving rope sheave 5 when in addition, the quantity of state of B ' expression car 1 becomes state shown in the B.
C acts under the state of deceleration side corresponding to the car 1 in relative the advancing of weight difference of car 1 and counterweight 2, the braking force of control brake device 7, so that deceleration/decel is followed desired deceleration, and the situation that car 1 is stopped gradually.At this, under state shown in the C,, make brake equipment 7 produce maximum braking force surpassing boundary line 25 by the speed of the detected car 1 of speed detection unit, when promptly fast, safety relay 24 being disconnected than the speed shown in the boundary line 25, car 1 is slowed down.
In addition, the state when least slowing down owing to this boundary line aforesaid car 1 of 25 expressions so utilizing the braking force of above-mentioned maximum, when the car 1 of advancing with the speed on the boundary line 25 is slowed down, can not surpass the velocity variations line shown in the B among Fig. 2.For example, D is illustrated in the i point shown in the C (in C, the speed of car 1 surpasses the point of boundary line 25), the quantity of state when being in the state that the car 1 in this elevator device least slows down.Under the situation shown in the D, the speed of car 1 can not surpass B.That is, boundary line 25 is determined according to following relation: according to and each constantly under the situation of the predetermined speed hypothesis on cooresponding boundary line 25 and the cooresponding velocity variations line of D, each when this speed is no more than the speed of B is constantly and the relation between the speed.
By the boundary line 25 with such setting is that benchmark carries out open and close controlling to safety relay 24, the speed of car 1 can be maintained when car 1 least slows down in this elevator device speed or than its low speed, make the stopping distance when promptly stopping to be shorter than situation shown in the B reliably.That is, in the design of elevator, prediction also can produce the stopping distance shown in the B, at stopping distance than the stopping distance of this prediction in short-term, can not produce the stopping distance of length outside the prediction because of the influence of the brake-power control of brake equipment 7.
In addition, defining boundaries 25 o'clock, higher by each each speed setting constantly of the correspondence on this line is got, be in the scope that broad can be got by the oblique line portion 26 of this boundary line below 25.Thus, the state that safety relay 24 closures can be alleviated the braking force of brake equipment 7 enlarges, and can bring into play original due function well is that deceleration/decel reduces effect.
More than be to set the example that stopping distance is shortened in boundary line 25, this boundary line 25 is set at the feasible speed that can not surpass when car 1 least slows down when making brake equipment 7 produce maximum braking force.
Below, another establishing method of boundary line 25 is described according to Fig. 8.
Fig. 8 (Fig. 8 a and Fig. 8 b) is used to illustrate the figure that controls safety relay and limit another action of stopping distance when promptly stopping.Specifically, Fig. 8 represents the example of the opening and closing operations of safety relay 24, also long stopping distance when this safety relay 24 is used to allow least slow down than the car 1 in situation 1, but car 1 is stopped in the scope of preset distance, prevent that it from entering the hoistway end.In the opening and closing operations of the safety relay 24 that illustrates herein, be that benchmark opens and closes safety relay 24 with the boundary line shown in Fig. 8 b 27.In addition, be trapezoidal situation, the zone that oblique line portion 28 expression speed are slower than boundary line 27 in oblique line portion 28 shown in Fig. 8 b.
When this situation, under the state that car 1 least slows down,, when making brake equipment 7 produce maximum braking force, produce for example F, F ', F when safety relay 24 is disconnected " shown in velocity variations.Therefore, can not surpass the velocity variations line shown in the E.Therefore, with described boundary line 27 be benchmark when opening and closing safety relay 24, can be to stop than changing the short distance of stopping distance that produces according to the quantity of state shown in the E.
In addition, when state 2, do not limit stopping distance and when making brake equipment 7 produce maximum braking force to stop, can be the open and close controlling that benchmark carries out safety relay 24 also with the boundary line shown in Fig. 9 b 29.This boundary line 29 begins to light from promptly stopping to move that to have speed be 0 size.And, this moment the state variation when stopping shown in the A among Fig. 9, B, B ', identical with A, B, B ' among Fig. 7.
As mentioned above, in the elevator of structure with present embodiment, when under the situation of closing door, promptly stopping, car 1 is slowed down with enough slow deceleration/decel to be stopped, and can fully guarantee the interval of car doorway and elevator floor stops when advancing opening the door, except above-mentioned effect, also have when promptly stopping under the situation that in traveling process, opening door, can the effect that limit and car is stopped to be set to stopping distance.
Utilizability on the industry
The lift appliance that the application of said structure is not limited to stipulate also can be applicable to all elevators Device.
Claims (5)
1. a lift appliance is characterized in that, this lift appliance has:
Car, it is lifting in elevator hoistways;
Brake equipment, its described car in running usually stops described car when stopping;
Control command portion, when the described car of advancing was usually promptly stopped, this control command portion controlled the deceleration/decel of described car, made described brake equipment produce braking force simultaneously; And
The judging part of advancing that opens the door, it to shorten the mode of the stopping distance of described car than the situation that the described car of advancing is usually promptly stopped, making described brake equipment produce braking force under the situation of the predetermined travel condition of opening the door that is judged as described car.
2. lift appliance according to claim 1 is characterized in that, this lift appliance has:
Door open and-shut mode detecting unit, the open and-shut mode of its detecting gate; And
The travel condition detecting unit, it detects the travel condition of car,
When the testing result according to described door open and-shut mode detecting unit was judged to be predetermined door opening state and is judged to be the predetermined travel condition of described car according to the testing result of described travel condition detecting unit, the judgement section judges of advancing of opening the door was that described car is in the travel condition of opening the door.
3. lift appliance according to claim 1 is characterized in that, this lift appliance has the speed detection unit that detects car speed,
When described car is promptly stopped, when the speed by the detected described car of described speed detection unit of being judged as during, open the door and advance judging part and door opening state irrespectively less than predetermined value, all be judged as described car and be in the travel condition of opening the door.
4. lift appliance according to claim 1 is characterized in that, this lift appliance has the door open and-shut mode detecting unit of the open and-shut mode of detecting gate,
When car is promptly stopped, when the testing result according to described door open and-shut mode detecting unit is judged to be predetermined door opening state, open the door advance judging part and described car travel condition irrespectively, all be judged as described car and be in the travel condition of opening the door.
5. a lift appliance is characterized in that, this lift appliance has:
Car, it is lifting in elevator hoistways;
Brake equipment, its described car in running usually stops described car when stopping;
Control command portion, when the described car of advancing was usually promptly stopped, this control command portion controlled the deceleration/decel of described car, made described brake equipment produce braking force simultaneously;
Door open and-shut mode detecting unit, the open and-shut mode of its detecting gate;
Speed detection unit, it detects the speed of car; And
The judging part of advancing that opens the door, it is according to the testing result of described door open and-shut mode detecting unit and the testing result of described speed detection unit, the state of the elevator when described car is promptly stopped, the control of changing the braking force of described brake equipment,
Described opening the door advanced judging part when being judged to be predetermined door opening state, and described opening the door advanced judging part to shorten the mode of the stopping distance of described car than the situation that is not judged as described predetermined door opening state, makes described brake equipment produce braking force,
In the speed that is judged to be described predetermined door opening state and described car is that predetermined value is when following, described opening the door advanced judging part to surpass the situation of described predetermined value than the speed that is judged to be described predetermined door opening state and described car, shorten the mode of the stopping distance of described car, make described brake equipment produce braking force.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPPCT/JP2007/063707 | 2007-07-10 | ||
| PCT/JP2007/063707 WO2009008058A1 (en) | 2007-07-10 | 2007-07-10 | Elevator |
| PCT/JP2008/050127 WO2009008183A1 (en) | 2007-07-10 | 2008-01-09 | Elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101678996A true CN101678996A (en) | 2010-03-24 |
| CN101678996B CN101678996B (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800190259A Active CN101678996B (en) | 2007-07-10 | 2008-01-09 | Elevator |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2165960B1 (en) |
| KR (1) | KR101152565B1 (en) |
| CN (1) | CN101678996B (en) |
| WO (2) | WO2009008058A1 (en) |
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| JP2009154988A (en) * | 2007-12-25 | 2009-07-16 | Toshiba Elevator Co Ltd | System for preventing traveling of elevator with door opened |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2165960A1 (en) | 2010-03-24 |
| KR101152565B1 (en) | 2012-06-01 |
| WO2009008058A1 (en) | 2009-01-15 |
| CN101678996B (en) | 2013-08-28 |
| KR20090128541A (en) | 2009-12-15 |
| EP2165960B1 (en) | 2016-04-13 |
| EP2165960A4 (en) | 2014-03-12 |
| WO2009008183A1 (en) | 2009-01-15 |
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