CN102177083A - Elevator device - Google Patents
Elevator device Download PDFInfo
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- CN102177083A CN102177083A CN2008801315088A CN200880131508A CN102177083A CN 102177083 A CN102177083 A CN 102177083A CN 2008801315088 A CN2008801315088 A CN 2008801315088A CN 200880131508 A CN200880131508 A CN 200880131508A CN 102177083 A CN102177083 A CN 102177083A
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- China
- Prior art keywords
- car
- door
- speed
- braking force
- control
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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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
Abstract
An elevator device in which braking force to be applied to an elevator car is generated when supply of electric power to a brake coil of a brake device is interrupted and the generation of the braking force applied to the elevator car is stopped when electric power is supplied to the brake coil. A brake controlling device has a first brake controlling means for controlling braking force applied to the elevator car by regulating the amount of supply of electric power to the brake coil, and also has a second brake controlling means capable of forcibly interrupting supply of electric power to the brake coil. The second brake controlling means has computer means for individually determining, based on information from a specific detecting means, whether or not an elevator has an abnormality and performing, when having determined that the elevator has an abnormality, control for interrupting supply of electric power to the brake coil.
Description
Technical field
The present invention relates to lift appliance, the braking force that this lift appliance utilizes braking force control system control that car is braked.
Background technology
Usually taken place to utilize the braking force of drg that car is braked when unusual at elevator, car has been slowed down stop.Proposed a kind of brake device for elevator in the past, and, made the deceleration/decel of car reach predetermined value in order to reduce that when the deceleration based on braking maneuver stops the impact of car is controlled the braking force of drg.The control of the braking force of drg is to be undertaken by the output of speed detector and deceleration instruction value are compared, and this speed detector detects the speed (with reference to patent documentation 1) that makes the car drive motor that car moves.
Patent documentation 1: Japanese kokai publication hei 7-157211 communique
But, in above-mentioned brake device for elevator in the past, utilizing common braking force control system to carry out car when unusual slows down and stops to control and the car usually the time slows down and stops control, therefore, under the situation that braking force control system breaks down, when needs make the abnormal elevator that car stops, might be able to not utilizing drg to force car is stopped.In addition,, can improve the reliability that car stops to control, cause structure to become complicated though stop by the deceleration that utilizes a plurality of braking force control systems to control car.
Summary of the invention
The present invention proposes in order to address the above problem just, and its purpose is, a kind of lift appliance is provided, and can when abnormal elevator car be stopped more reliably, and, can suppress the structure complicated of braking force control system.
Lift appliance of the present invention has: car, and it can move in hoistway; Brake equipment, it has restraining coil, and energising produces the braking force that car is braked to restraining coil by stopping, and stops to produce braking force by restraining coil is switched on; And braking force control system, it has the 1st brak control unit and the 2nd brak control unit, the 1st brak control unit carries out the control of braking force by adjusting to the energising amount of restraining coil, the 2nd brak control unit comprises a plurality of arithmetic elements, these a plurality of arithmetic elements are no abnormal according to judging independently that from the information of preset detection unit elevator has, when being judged to be abnormal elevator, stop control to the restraining coil energising.
Description of drawings
Fig. 1 is the constructional drawing of the lift appliance of expression embodiments of the present invention 1.
Fig. 2 is the constructional drawing of the braking force control system of presentation graphs 1.
Fig. 3 is the diagram of circuit of calculation process of the 1st brak control unit of instruction diagram 2.
Fig. 4 is the diagram of circuit of calculation process of the 1st computer unit of instruction diagram 2.
Fig. 5 is the adjustment state of switch and the state of the 1st relay tip for the acceleration/accel of the speed of the car of Fig. 1, car, Fig. 2, the diagram of curves that the time when expression is turned round usually respectively changes.
Fig. 6 be for the adjustment of the acceleration/accel of the speed of the car of Fig. 1, car, Fig. 2 with the state of switch and the state of the 1st relay tip, the diagram of curves that the time when unusual changes takes place in the acceleration/accel that is illustrated respectively in car.
The specific embodiment
Below, with reference to description of drawings preferred implementation of the present invention.
Fig. 1 is the constructional drawing of the lift appliance of expression embodiments of the present invention 1.In the drawings, in hoistway 1, utilize suspension unit 4 hanging car 2 and counterweight 3.Suspension unit 4 can adopt for example rope, band (belt) etc.Be provided with towing machine (actuating device) 5 and the deflector wheel 6 that car 2 and counterweight 3 are moved on the top of hoistway 1.
The driving rope sheave 8 that towing machine 5 has motor 7 and rotates by motor 7.Suspension unit 4 is wound on and drives on rope sheave 8 and the deflector wheel 6.By driving rope sheave 8 rotations, car 2 and counterweight 3 move in hoistway 1.
The a pair of car door 10 that is provided with car gangway 9 and car gangway 9 is opened and closed at car 2.Each car door 10 is by the propulsive effort of the door drive that is installed on car 2, displacement between the opening position of closing the door the position and car gangway 9 being opened that car gangway 9 is closed.
The a pair of stop door (all not shown) that is provided with landing doorway and landing doorway is opened and closed at the stop of each floor.In hoistway 1, be set with and the cooresponding predetermined interval of closing the door of opening the door, the position of each stop about the moving direction of car 2.Be positioned to open the door at car 2 and close the door when interval, car door 10 can close about horizontal direction and stop badge.Therefore, be positioned to open the door at car 2 and close the door when interval, by making car door in the displacement between position and the opening position of closing the door, the stop door is engaging with respect to the landing doorway displacement with car door.Engaging displacement by the stop door with car door, landing doorway is opened/closes.Be positioned at car 2 and can open the door when closing the door outside the interval, can not carry out engaging of car door 10 and stop door.
Be provided with the brake equipment 11 that the rotation that drives rope sheave 8 is braked at towing machine 5.Brake equipment 11 has: brake disc (swivel) 12, and it rotates integratedly with driving rope sheave 8; Brake component 13, it can be to the direction displacement that contacts/leave with brake disc 12; Retarding spring (force body), its to the direction of joining with brake disc 12 to brake component 13 application of forces; And restraining coil, the application of force that it resists retarding spring makes brake component 13 to the direction displacement of leaving brake disc 12.
When stopping restraining coil being switched on, brake component 13 is by the application of force of retarding spring and contact with brake disc 12.Contact with brake disc 12 by brake component 13, the rotation of brake disc 12 is braked.The braking force that car 2 is braked is to produce by the rotation of brake disc 12 is braked.And by restraining coil is switched on, the application of force that brake component 13 is resisted retarding spring is to the direction displacement of leaving brake disc 12.The generation of the braking force that car 2 is braked is left brake disc 12 along with brake component 13 and is stopped.
Be provided with the 1st speed detector (detecting unit) 14 and the 2nd speed detector (detecting unit) 15 that detects the rotative speed that drives rope sheave 8 independently at motor 7.The speed of car 2 is to calculate according to the information from the 1st speed detector the 14, the 2nd speed detector 15.The 1st speed detector the 14, the 2nd speed detector 15 for example can be enumerated coder etc.
Be provided with the detector of closing the door (detecting unit) 16 whether detection car door 10 is positioned at the position of closing the door at car 2.And, in hoistway 1, being provided with car position detector (detecting unit) 17, this car position detector 17 detects car 2 and whether is positioned at the interval of closing the door of can opening the door.Car position detector 17 for example can adopt detector, and this detector has: the plate that is fixed on the inwall of hoistway 1 along the moving direction of car 2; And be installed on car 2, only be positioned at the plate detecting sensor of check-out console when interval of closing the door of can opening the door at car 2.
Be sent to the control device for running the engine 18 of control elevator running from the information of the 1st speed detector the 14, the 2nd speed detector 15.Information from the 1st speed detector the 14, the 2nd speed detector 15, close the door detector 16 and car position detector 17 is sent to the braking force control system 19 of the action of control brake device 11 respectively.
Control device for running the engine 18 is powered to motor 7 when car 2 is moved, and, export attraction instruction and the relay driving command that stops to produce to the braking force of car 2 to braking force control system 19.And control device for running the engine 18 is according to the information from the 1st speed detector the 14, the 2nd speed detector 15, and the acceleration/accel of judging car 2 has no abnormal, has when unusual at the acceleration/accel that is judged to be car 2, stops to attract instruction to braking force control system 19 outputs.In addition, control device for running the engine 18 is according to the speed of obtaining car 2 from the information of the 1st speed detector the 14, the 2nd speed detector 15, and when car 2 stops (, the speed of car 2 is 0 o'clock), stop to braking force control system 19 output relay driving command.
Braking force control system 19 according to respectively from the information of the 1st speed detector the 14, the 2nd speed detector 15, the detector 16 of closing the door, car position detector 17 and control device for running the engine 18, the action of control brake device 11.
Fig. 2 is the constructional drawing of the braking force control system 19 of presentation graphs 1.In the drawings, the restraining coil of brake equipment 11 has a plurality of (being two the in this example) electromagnetic coil portion 20,21 that is connected in parallel with each other.Braking force control system 19 has: adjust with switch 22, it can adjust the energising amount to each electromagnetic coil portion 20,21; The 1st brak control unit 23, the action with switch 22 is adjusted in its control; The 1st relay 24 and the 2nd relay 25 (a plurality of relay 24,25), it can force to stop the energising to each electromagnetic coil portion 20,21; And the 2nd brak control unit 26, it controls the action of the 1st relay the 24, the 2nd relay 25.
The 1st relay tip 24b that the 1st relay 24 has the 1st relay coil 24a and opens and closes according to the energising control to the 1st relay coil 24a.The 2nd relay tip 25b that the 2nd relay 25 has the 2nd relay coil 25a and opens and closes according to the energising control to the 2nd relay coil 25a.
To the adjustment of the energising of the 1st relay coil 24a is according to carrying out as the 1st relay of the semiconductor switch on-off action (On/Off action) with switch 27.The 1st relay coil 24a and the 1st relay with switch 27 be connected in series in power supply 29 and grounding parts () between 30.
To the adjustment of the energising of the 2nd relay coil 25a is according to carrying out as the 2nd relay of the semiconductor switch on-off action (On/Off action) with switch 28.The 2nd relay coil 25a and the 2nd relay are connected in series between power supply 29 and the grounding parts 30 with switch 28.
The restraining coil, the adjustment that comprise each electromagnetic coil portion 20,21 are connected in series between power supply 29 and the grounding parts 30 with switch the 22, the 1st relay tip 24b and the 2nd relay tip 25b.In this example, the 1st relay tip 24b is connected between restraining coil and the power supply 29, and the 2nd relay tip 25b and adjustment are connected between restraining coil and the grounding parts 30 with switch 22.
Adjusting with switch 22 is semiconductor switchs.When the 1st relay tip 24b and the 2nd relay tip 25b are closed, adjust on-off action (On/Off action) repeatedly with switch 22, thus, utilize and adjust with the energising amount of switch 22 adjustment to each electromagnetic coil portion 20,21.Braking force to car 2 is by adjusting the energising amount of each electromagnetic coil portion 20,21 to be adjusted.By making at least any one party among the 1st relay tip 24b and the 2nd relay tip 25b disconnect action, pressure stops the energising to each electromagnetic coil portion 20,21.
In addition, be connected with discharge diode 31 at power supply 29 and between adjusting with switch 22.The influence that can not be subjected to inverse voltage with switch 22 is adjusted in discharge diode 31 protections; described inverse voltage is under the state of the 1st relay tip 24b, the 2nd relay tip 25b closure; adjust to resolve and start when doing, result from each electromagnetic coil portion 20,21 with switch 22.And, between each the 1st relay tip 24b and the 2nd relay tip 25b and restraining coil, be connected with discharge diode 32 and the discharging resistance 33 that is connected in series.At least any one party that discharge diode 32 and discharging resistance 33 consume in the 1st relay tip 24b, the 2nd relay tip 25b is resolved the anti-electronic heat of starting generation when doing, and the energising amount to each electromagnetic coil portion 20,21 is reduced rapidly.
Send the attraction instruction of self-operating control setup 18 and from the signal of the 1st speed detector 14 to the 1st brak control unit 23.From the information of control device for running the engine 18 and the 1st speed detector 14, the action with switch 22 is adjusted in control to the 1st brak control unit 23 according to respectively.Thus, adjust the energising amount to each electromagnetic coil portion 20,21, control is to the braking force of car 2.
Specifically, the 1st brak control unit 23 stops to produce control to the braking force of car 2 to adjusting with switch 22 when receiving from the attraction of control device for running the engine 18 instruction.That is, the 1st brak control unit 23 is when receiving from the attraction of control device for running the engine 18 instruction, and the energising amount to each electromagnetic coil portion 20,21 adjusted is so that brake component 13 leaves the control of brake disc 12.And the 1st brak control unit 23 is obtained the acceleration/accel of car 2 according to the information from the 1st speed detector 14, value and the predetermined threshold value α L (negative value) of the acceleration/accel obtained compared, and the action of usefulness switch 22 is adjusted in control.When the 1st brak control unit 23 surpasses threshold alpha L at the deceleration/decel (negative acceleration/accel) of car 2 (, when the acceleration/accel of car 2 is lower than threshold alpha L), adjust with the action of switch 22 by control and to adjust braking force, carry out the acceleration/accel of car 2 is remained the control of threshold alpha L car 2.
The 2nd brak control unit 26 has the 1st computer unit (arithmetic element) the 34, the 2nd computer unit (arithmetic element) 35, shared storage (storage part) 36 and fault detection unit 37.
Send respectively from the signal of the 1st speed detector 14, close the door detector 16 and car position detector 17 with from the relay driving command of control device for running the engine 18 to the 1st computer unit 34.The 1st computer unit 34 from the information of the 1st speed detector 14, the detector 16 of closing the door, car position detector 17 and control device for running the engine 18, is controlled the action of the 1st relay with switch 27 according to respectively, and controls the action of the 1st relay tip 24b.
Specifically, the 1st computer unit 34 is when the relay driving command that receives from control device for running the engine 18, the control that the 1st relay is kept the closed action of the 1st relay tip 24b with switch 27, when the reception of relay driving command stops, the 1st relay is carried out the control of the disconnection action of the 1st relay tip 24b with switch 27.And the 1st computer unit 34 from the information of the 1st speed detector 14, close the door detector 16 and car position detector 17, judges that elevator has no abnormal according to respectively.The 1st computer unit 34 does not have when unusual being judged to be elevator, the control that the 1st relay is kept the closed action of the 1st relay tip 24b with switch 27, when being judged to be abnormal elevator, the 1st relay is carried out the control of the disconnection action of the 1st relay tip 24b with switch 27.
The 1st computer unit 34 is at the limits value V that outpaces of the speed according to the car of obtaining from the information of the 1st speed detector 14 2
LimThe time, be judged to be abnormal elevator.And the 1st computer unit 34 is according to the information of coming self-closing door detector 16 and car position detector 17 respectively, is judged to be under the position deviation of car door 10 is closed the door the state of position car 2 and is positioned at and can opens the door when closing the door outside the interval, is judged to be abnormal elevator.
Speed limit V
LimBe to set by comparing according to the acceleration/accel of the car of obtaining from the information of the 1st speed detector 14 2 and threshold alpha L.That is be that threshold alpha L is when above, with speed limit V, at the acceleration/accel of car 2
LimBe made as predetermined set value V
Max, when the acceleration/accel of car 2 is lower than threshold alpha L (, when the deceleration/decel of car 2 surpasses threshold alpha L), with speed limit V
LimBe made as the value that reduces that reduces along with effluxion.
Send respectively from the signal of the 2nd speed detector 15, close the door detector 16 and car position detector 17 with from the relay driving command of control device for running the engine 18 to the 2nd computer unit 35.The 2nd computer unit 35 is according to respectively from the information of the 2nd speed detector 15, the detector 16 of closing the door, car position detector 17 and control device for running the engine 18, control of the action of the 2nd relay, and carry out the action control of the 2nd relay tip 25b with switch 28.The processing of the 2nd computer unit 35 is identical with the processing of the 1st computer unit 34.
Specifically, the 2nd computer unit 35 is when the relay driving command that receives from control device for running the engine 18, the control that the 2nd relay is kept the closed action of the 1st relay tip 25b with switch 28, when the reception of relay driving command stops, the 2nd relay is carried out the control of the disconnection action of the 2nd relay tip 25b with switch 28.And the 2nd computer unit 35 from the information of the 2nd speed detector 15, close the door detector 16 and car position detector 17, judges that elevator has no abnormal according to respectively.The 2nd computer unit 35 does not have when unusual being judged to be elevator, the control that the 2nd relay is kept the closed action of the 2nd relay tip 25b with switch 28, when being judged to be abnormal elevator, the 2nd relay is carried out the control of the disconnection action of the 2nd relay tip 25b with switch 28.
The 2nd computer unit 35 is at the limits value V that outpaces of the speed according to the car of obtaining from the information of the 2nd speed detector 15 2
LimThe time, be judged to be abnormal elevator.And the 2nd computer unit 35 is according to the information of coming self-closing door detector 16 and car position detector 17 respectively, is judged to be under the position deviation of car door 10 is closed the door the state of position car 2 and is positioned at and can opens the door when closing the door outside the interval, is judged to be abnormal elevator.
Speed limit V
LimBe to set by comparing according to the acceleration/accel of the car of obtaining from the information of the 2nd speed detector 15 2 and threshold alpha L.That is be that threshold alpha L is when above, with speed limit V, at the acceleration/accel of car 2
LimBe made as predetermined set value V
Max, when the acceleration/accel of car 2 is lower than threshold alpha L (, when the deceleration/decel of car 2 surpasses threshold alpha L), with speed limit V
LimBe made as the value that reduces that reduces along with effluxion.
That is, it is no abnormal that the 1st computer unit 34 and the 2nd computer unit 35 judge that independently elevator has, and when being judged to be abnormal elevator, stops the control to 20,21 energisings of each electromagnetic coil portion.
Store the 1st computer unit the 34, the 2nd computer unit 35 result separately at shared storage 36.The 1st computer unit the 34, the 2nd computer unit 35 is obtained the 1st computer unit the 34, the 2nd computer unit 35 result separately independently from shared storage 36, the result that obtains is compared, judge that thus braking force control system 19 has trouble free.The 1st computer unit the 34, the 2nd computer unit 35 is carrying out behind the fault verification, to fault detection unit 37 output breakdown signals.Thus, in the time of can fault having taken place in any one party in the 1st computer unit the 34, the 2nd computer unit 35, detect et out of order.
Below, the calculation process of the 1st brak control unit 23 is described.Fig. 3 is the diagram of circuit of the calculation process of explanation the 1st brak control unit 23.The computing of the 1st brak control unit 23 is to carry out according to each predetermined cycle.The 1st brak control unit 23 is judged the attraction instruction (S1) that whether receives from control device for running the engine 18 according to each execution cycle.
Be judged to be under the situation that receives the attraction instruction at the 1st brak control unit 23, the energising amount that the 1st brak control unit 23 is adjusted each electromagnetic coil portion 20,21, remove control (S2) to adjusting, finish the computing in this cycle the braking force of car 2 with switch 22.Thus, stop to produce braking force to car 2.At this moment, by adjusting On/Off action repeatedly, adjust energising amount to each electromagnetic coil portion 20,21 with switch 22.
Do not receive under the situation that attracts instruction at the 1st brak control unit 23, the 1st brak control unit 23 judges whether the acceleration/accel according to the car of obtaining from the information of the 1st speed detector 14 2 is lower than threshold alpha L (S3).
Acceleration/accel at car 2 is lower than under the situation of threshold alpha L, abrupt deceleration for fear of car 2,23 pairs of adjustment of the 1st brak control unit (S4), finish the computing in this cycle with the control (deceleration/decel control) that switch 22 carries out the acceleration/accel of car 2 is remained threshold alpha L.At this moment, by adjusting On/Off action repeatedly, adjust energising amount to each electromagnetic coil portion 20,21 with switch 22.
Under the situation of acceleration/accel greater than threshold alpha L of car 2, in order to produce the braking force to car 2, the 1st brak control unit 23 is carried out the control of adjusting with the Off action of switch 22 (S5), finishes the computing in this cycle.
Below, the calculation process of the 1st computer unit 34 in the 2nd brak control unit 26 is described.Fig. 4 is the diagram of circuit of calculation process of the 1st computer unit 34 of instruction diagram 2.The computing of the 1st computer unit 34 is to carry out according to each predetermined cycle.In addition, the computing of the 2nd computer unit 35 is identical with the computing of the 1st computer unit 34.
The 1st computer unit 34 judges according to each execution cycle whether the speed of car 2 is 0 (S11).Be that the 1st computer unit 34 is reset to 0 with the time t of timer under 0 the situation in the speed of car 2, and, with speed limit V
LimBe made as predetermined set value V
Max, carry out the initialization process (S12) of variable thus.Then, the 1st computer unit 34 is judged the relay driving command (S13) that whether receives from control device for running the engine 18.
Under the situation that receives the relay driving command, 34 pairs the 1st relays of the 1st computer unit are carried out the control (S14) of the closed action (On action) of the 1st relay tip 24b with switch 27, finish the computing in this cycle.
Under the situation that does not receive the relay driving command, 34 pairs the 1st relays of the 1st computer unit are carried out the control (S15) of the disconnection action (Off action) of the 1st relay tip 24b with switch 27, finish the computing in this cycle.
On the other hand, be not under 0 the situation in the speed of car 2, the 1st computer unit 34 whether judge state (door opening state) that car door 10 departs from the position of closing the door down car 2 be positioned at close the door (S16) outside the interval that can open the door.
When car 2 is being positioned under the door opening state under the situation outside the interval of closing the door of can opening the door, in order to produce braking force to car 2,34 pairs the 1st relays of the 1st computer unit are carried out the control (S15) of the disconnection action of the 1st relay tip 24b with switch 27, finish the computing in this cycle.
Be positioned under the situation of the position of closing the door at car door 10 or car 2 is positioned to open the door and closes the door under the interval situation, whether the absolute value of the speed of the 1st computer unit 34 judgement cars 2 is less than speed limit V
Lim(S17).
Absolute value in the speed of car 2 is speed limit V
LimUnder the above situation, 34 pairs the 1st relays of the 1st computer unit are carried out the control (S15) that the disconnection of the 1st relay tip 24b is moved with switch 27, finish the computing in this cycle.
At the absolute value of the speed of car 2 less than speed limit V
LimSituation under, the 1st computer unit 34 judges whether the time t of timers is 0 (S18).
At the time of timer t is under 0 the situation, and the 1st computer unit 34 judges that whether the acceleration/accel of car 2 is greater than threshold alpha L (S19).As a result, under the situation of acceleration/accel greater than threshold alpha L of car 2,34 pairs the 1st relays of the 1st computer unit are carried out the control (S14) of the closed action of the 1st relay tip 24b with switch 27, finish the computing in this cycle.And, under the acceleration/accel of car 2 is situation below the threshold alpha L, the 1st computer unit 34 is made as (t+1) (S20) with the time t of timer, then the 1st relay is carried out the control (S14) of the closed action of the 1st relay tip 24b with switch 27, finishes the computing in this cycle.
On the other hand, be not that the 1st computer unit 34 judges that whether the time t of timers is greater than predefined setting-up time t under 0 the situation at the time of timer t
Max(S21).
At the time of timer t is setting-up time t
MaxUnder the following situation, the 1st computer unit 34 is made as (t+1) (S20) with the time t of timer, then the 1st relay is carried out the control (S14) of the closed action of the 1st relay tip 24b with switch 27, finishes the computing in this cycle.
At the time of timer t greater than setting-up time t
MaxSituation under, with speed limit V
LimBe made as (V
Lim-V1) (S22) carries out the control (S14) of the closed action of the 1st relay tip 24b to the 1st relay with switch 27 then, finishes the computing in this cycle.In addition, V1 is predefined fixed value.Thus, can be with speed limit V
LimBe made as the value that reduces along with effluxion.
Below, illustrate that the acceleration/accel of speed, the car 2 of car 2, the time when adjusting the common running with the state of the state of switch 22 and the 1st relay tip 24b change.Fig. 5 is the adjustment state of switch 22 and the state of the 1st relay tip 24b for the acceleration/accel of the speed of the car 2 of Fig. 1, car 2, Fig. 2, the diagram of curves that the time when expression is turned round usually respectively changes.When common running, the acceleration/accel of car 2 remains on above (that is, not producing the abrupt deceleration of car 2) (Fig. 5 (b)) of threshold alpha L, thereby removes control to the braking force of car to adjusting with switch 22.At this moment, adjust with switch 22 and carry out the On/Off action repeatedly, adjust energising amount thus each electromagnetic coil portion 20,21.
In addition, in order to adjust energising amount, be actually the On/Off action of adjusting repeatedly with switch 22, move but in (c) of Fig. 5, omitted the On/Off that adjusts with switch 22 to each electromagnetic coil portion 20,21.And when turning round usually, the speed of car 2 remains and is lower than speed limit V
MaxValue (Fig. 5 (a)), thereby the 1st relay is carried out the control of the closed action of the 1st relay tip 24b with switch 27.
Below, illustrate that when car 2 is a significant slowdown the time of the state of the acceleration/accel of the speed of car 2, car 2, the state of adjusting usefulness switch 22 and the 1st relay tip 24b changes.Fig. 6 be for the adjustment of the acceleration/accel of the speed of the car 2 of Fig. 1, car 2, Fig. 2 with the state of switch 22 and the state of the 1st relay tip 24b, the diagram of curves that the time when unusual changes takes place in the acceleration/accel of representing car 2 respectively.
When taking place at the moment t1 elevator when unusual, stop to attract instruction and to the energising of motor 7 to braking force control system 19 outputs from control device for running the engine 18.Thus, the speed of car 2 and acceleration/accel are because car 2 rise ((a) of Fig. 6 and (b) of Fig. 6) temporary transient with the overbalance of counterweight 3.Then, adjustment disconnects action with switch 22, stops 20,21 energisings of each electromagnetic coil portion.Thus, car 2 is a significant slowdown, and the acceleration/accel of car 2 is lower than threshold alpha L at moment t2.
When the acceleration/accel of car 2 is lower than threshold alpha L, by the control of braking force control system 19, adjust on-off action (Fig. 6 (c)) repeatedly with switch 22, the acceleration/accel of car 2 remains threshold alpha L (Fig. 6 (b)).At this moment, at effluxion setting-up time t from moment t2
MaxThe time, speed limit V
LimValue be set to along with effluxion from setting value V
MaxThe value that reduces.
The speed of car 2 remains speed limit V
LimBelow, when car 2 reaches enough low low speed at moment t3, stopping to adjust on-off action repeatedly with switch 22, the state of adjusting with switch 22 remains off-state (Off state) (Fig. 6 (c)).
Then, when car 2 when moment t4 stops fully, stop from control device for running the engine 18 to braking force control system 19 output relay driving command (Fig. 6 (d)).Thus, the 1st relay tip 24b, the 2nd relay tip 25b disconnect action respectively.
The speed of the car 2 limits value V that outpaces when car 2 moves
LimSituation under, no matter whether from control device for running the engine 18 output relay driving command, at least one root among the 1st relay tip 24b, the 2nd relay tip 25b disconnects action according to the control of braking force control system 19.Thus, force to stop 20,21 energisings of each electromagnetic coil portion are produced the braking force to car 2.
In this lift appliance, be provided with at braking force control system 19: the 1st brak control unit 23, its control is to the energising amount of each electromagnetic coil portion 20,21; The 2nd brak control unit 26, it comprises a plurality of computer units 34,35, these a plurality of computer units 34,35 to judge that independently elevator has no abnormal, when being judged to be abnormal elevator, stop each electromagnetic coil portion 20, the control of 21 energising, thereby can utilize each computer unit 34,35 to monitor that independently elevator has no abnormal, at each computer unit 34, under the situation of any one party in 35 or the 1st brak control unit 23 et out of orders, also can car 2 be stopped more reliably by the control of remaining normal computer unit.And, need a plurality of braking force control systems be set, thereby can suppress the structure complicated of braking force control system 19 for the reliability that stops to control that improves car 2.
And when the deceleration/decel of car 2 surpassed threshold alpha L, each computer unit 34,35 generated the speed limit V that reduces along with effluxion
Lim, at the speed of the car 2 limits value V that outpaces
LimThe time, stop control to the energising of each electromagnetic coil portion 20,21, thereby can be in the speed of car 2 speed unusual of lower phase judgement car 2, can car 2 be stopped.
And, each computer unit 34,35 is positioned at and can opens the door when closing the door outside the interval being judged to be under the position deviation of car door 10 is closed the door the state of position car 2, stop control to the energising of each electromagnetic coil portion 20,21, even thereby do not have under the unusual situation at the speed or the acceleration/accel of car 2, also can judge the unusual of elevator, can realize the raising of elevator safety.
In addition, in above-mentioned example, the quantity of each computer unit 34,35 is made as two, but also the quantity of computer unit can be made as more than three.
Claims (3)
1. a lift appliance is characterized in that, this lift appliance has:
Car, it can move in hoistway;
Brake equipment, it has restraining coil, by stopping that described restraining coil energising is produced the braking force that described car is braked, stops to produce described braking force by described restraining coil is switched on; And
Braking force control system, it has the 1st brak control unit and the 2nd brak control unit, the 1st brak control unit carries out the control of described braking force by adjusting to the energising amount of described restraining coil, the 2nd brak control unit comprises a plurality of arithmetic elements, these a plurality of arithmetic elements are no abnormal according to judging independently that from the information of preset detection unit described elevator has, when being judged to be described abnormal elevator, stop control to described restraining coil energising.
2. lift appliance according to claim 1 is characterized in that,
Described detecting unit comprises speed detector, and this speed detector detects the speed of described car,
When each described arithmetic element surpasses predetermined threshold value at the deceleration/decel according to the described car of obtaining from the information of described speed detector, the speed limit that generation reduces along with effluxion, when the speed of described car surpasses described speed limit, stop control to described restraining coil energising.
3. lift appliance according to claim 1 is characterized in that,
Described detecting unit comprises: the car door position detector, and it detects car door and whether is positioned at the position of closing the door of closing the car gangway; And car position detector, it detects described car and whether is positioned at the interval of closing the door of opening the door that stop door that landing doorway is opened and closed and described car door can engage,
Each described arithmetic element is according to respectively from the information of described car door position detector and described car position detector, be judged to be under the state of the described position of closing the door of the position deviation of described car door described car and be positioned at described opening the door when closing the door outside the interval, stop control described restraining coil energising.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2008/072162 WO2010064320A1 (en) | 2008-12-05 | 2008-12-05 | Elevator device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102177083A true CN102177083A (en) | 2011-09-07 |
| CN102177083B CN102177083B (en) | 2016-03-02 |
Family
ID=42232984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880131508.8A Active CN102177083B (en) | 2008-12-05 | 2008-12-05 | Lift appliance |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2364947B1 (en) |
| JP (1) | JP5653758B2 (en) |
| KR (1) | KR101233558B1 (en) |
| CN (1) | CN102177083B (en) |
| WO (1) | WO2010064320A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673148A (en) * | 2016-08-02 | 2018-02-09 | 通力股份公司 | Adjust method, elevator control unit and the elevator device of leveling speed limit |
| CN111483898A (en) * | 2019-01-28 | 2020-08-04 | 奥的斯电梯公司 | Elevator car and door motion monitoring |
| CN113056431A (en) * | 2019-02-20 | 2021-06-29 | 株式会社日立制作所 | Elevator and control method of elevator |
| CN113874310A (en) * | 2019-07-02 | 2021-12-31 | 株式会社日立制作所 | Elevator installation |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5220126B2 (en) * | 2008-12-12 | 2013-06-26 | 三菱電機株式会社 | Elevator safety circuit device |
| CN103803366B (en) | 2013-12-19 | 2016-04-27 | 西子奥的斯电梯有限公司 | A kind of elevator internal contracting brake torque measuring method |
| CN109292556B (en) * | 2018-12-11 | 2021-05-25 | 日立楼宇技术（广州）有限公司 | Control method and device of elevator brake, band-type brake power supply and storage medium |
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| JPS59172369A (en) | 1983-03-16 | 1984-09-29 | 三菱電機株式会社 | Controller for floor reaching of winding drum type elevator |
| JPH07157211A (en) | 1993-12-03 | 1995-06-20 | Mitsubishi Electric Corp | Brake device for elevator |
| JPH11139733A (en) * | 1997-11-07 | 1999-05-25 | Hitachi Ltd | Door control device for elevator |
| US7896136B2 (en) * | 2006-03-02 | 2011-03-01 | Mitsubishi Electric Corporation | Elevator apparatus with brake control device |
| CN100595122C (en) | 2006-03-17 | 2010-03-24 | 三菱电机株式会社 | Elevator apparatus |
| US7931127B2 (en) * | 2006-08-03 | 2011-04-26 | Mitsubishi Electric Corporation | Elevator apparatus |
| EP2141109A4 (en) * | 2007-04-26 | 2013-10-30 | Mitsubishi Electric Corp | Elevator device |
| EP2147883B1 (en) | 2007-05-24 | 2017-11-29 | Mitsubishi Electric Corporation | Elevator apparatus |
| KR101034926B1 (en) * | 2007-06-14 | 2011-05-17 | 미쓰비시덴키 가부시키가이샤 | Elevator |
| WO2009008058A1 (en) * | 2007-07-10 | 2009-01-15 | Mitsubishi Electric Corporation | Elevator |
-
2008
- 2008-12-05 JP JP2010541179A patent/JP5653758B2/en active Active
- 2008-12-05 CN CN200880131508.8A patent/CN102177083B/en active Active
- 2008-12-05 WO PCT/JP2008/072162 patent/WO2010064320A1/en active Application Filing
- 2008-12-05 KR KR1020117005227A patent/KR101233558B1/en active IP Right Grant
- 2008-12-05 EP EP08878580.3A patent/EP2364947B1/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673148A (en) * | 2016-08-02 | 2018-02-09 | 通力股份公司 | Adjust method, elevator control unit and the elevator device of leveling speed limit |
| CN107673148B (en) * | 2016-08-02 | 2023-02-21 | 通力股份公司 | Method for adjusting a leveling speed limit, elevator control unit and elevator system |
| CN111483898A (en) * | 2019-01-28 | 2020-08-04 | 奥的斯电梯公司 | Elevator car and door motion monitoring |
| CN111483898B (en) * | 2019-01-28 | 2022-04-08 | 奥的斯电梯公司 | Elevator car and door motion monitoring |
| CN113056431A (en) * | 2019-02-20 | 2021-06-29 | 株式会社日立制作所 | Elevator and control method of elevator |
| CN113056431B (en) * | 2019-02-20 | 2022-08-23 | 株式会社日立制作所 | Elevator and control method of elevator |
| CN113874310A (en) * | 2019-07-02 | 2021-12-31 | 株式会社日立制作所 | Elevator installation |
| CN113874310B (en) * | 2019-07-02 | 2022-11-29 | 株式会社日立制作所 | Elevator installation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102177083B (en) | 2016-03-02 |
| KR20110036645A (en) | 2011-04-07 |
| EP2364947A4 (en) | 2014-05-28 |
| EP2364947B1 (en) | 2016-08-24 |
| JPWO2010064320A1 (en) | 2012-05-10 |
| JP5653758B2 (en) | 2015-01-14 |
| WO2010064320A1 (en) | 2010-06-10 |
| KR101233558B1 (en) | 2013-02-14 |
| EP2364947A1 (en) | 2011-09-14 |
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