CN101663218B - Elevator apparatus - Google Patents
Elevator apparatus Download PDFInfo
- Publication number
- CN101663218B CN101663218B CN2007800525879A CN200780052587A CN101663218B CN 101663218 B CN101663218 B CN 101663218B CN 2007800525879 A CN2007800525879 A CN 2007800525879A CN 200780052587 A CN200780052587 A CN 200780052587A CN 101663218 B CN101663218 B CN 101663218B
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- Prior art keywords
- car
- operational part
- brake
- control section
- deceleration
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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
- 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
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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
- B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
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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
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
Abstract
In an elevator apparatus, a brake control device comprises a first brake controller for operating a braking device to bring a cage to an emergency stop when an abnormality is detected and a second brake controller for reducing braking force of the braking device when the deceleration of the cage reaches a threshold value or more during the emergency braking operation of the first brake controller. The second brake controller includes a first and a second computation unit for performing the operation of reducing the braking force of the braking device by computation processing independently of each other, the threshold value is set in the first computation unit so as to vary according to the cage position, and the threshold value is set in the second computation unit in the same manner as in the first computation unit.
Description
Technical field
The present invention relates to lift appliance, it has the braking force control system of the deceleration/decel of the car in the time of can controlling emergency braking.
Background technology
In the brake equipment of in the past elevator, when emergency braking according to the braking force of deceleration instruction value and speed signal control magnet stopper, so that the deceleration/decel of car reaches predetermined value (for example with reference to patent documentation 1).
And, in lift appliance in the past, after producing the emergent stopping instruction, when car endways near the floor when terminal floor is advanced, car slows down rapidly with larger deceleration/decel and stops.And when producing the emergent stopping instruction, if except near the car situation towards terminal floor is advanced the floor endways, then car slows down with fully little deceleration/decel and stops (for example with reference to patent documentation 2).
Patent documentation 1: Japanese kokai publication hei 7-157211 communique
Patent documentation 2: TOHKEMY 2006-306517 communique
In patent documentation 1 disclosed brake equipment in the past, carry out basic emergency braking action and these both sides of control action of braking force by a braking force control system, so because fault of braking force control system etc., when the deceleration/decel of car is excessive, to cause human discomfort to the passenger, on the contrary, when the deceleration/decel of car is too small, will cause stopping distance to prolong.And in patent documentation 2 disclosed lift appliances in the past, the car deceleration/decel during emergent stopping is because of the discontinuous conversion in the position of car, causes near the floor endways and the sensation of taking the during emergent stopping of intermediate floor produces larger difference.
Summary of the invention
The present invention proposes for the problems referred to above, its purpose is to provide a kind of lift appliance, when deceleration/decel control part et out of order, can car be stopped, can preventing because of car position simultaneously so that the sensation of taking during emergent stopping produces larger difference.
Lift appliance of the present invention has: towing machine, and it has the electrical motor that drives rope sheave and make the rotation of driving rope sheave; Volume hangs over the suspension unit that drives on the rope sheave; Car, it is being hung by suspension unit, and by towing machine and lifting; The brake equipment that advancing of car braked; With the braking force control system of control brake equipment, braking force control system has: the 1st brake control section, and it makes the brake equipment action when unusual detecting, and makes the car emergent stopping; With the 2nd brake control section, when the emergency braking action of the 1st brake control section, reach threshold value when above at the deceleration/decel of car, the 2nd brake control section reduces the braking force of brake equipment, the 2nd brake control section has the 1st and the 2nd operational part, it carries out the action that the braking force that makes brake equipment reduces independently of each other by calculation process, and setting threshold makes it change according to car position in the 1st operational part, in the 2nd operational part with the 1st operational part setting threshold similarly.
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 circuit diagram of the braking force control system in the presentation graphs 1.
Fig. 3 is the diagram of circuit of the deceleration/decel control action of the 1st and the 2nd operational part in the presentation graphs 2.
Fig. 4 is state, and the instruction diagram that changes of time of the state of deceleration/decel master cock of the electric current that is illustrated in the car speed that just produces when car slows down after the emergent stopping instruction, car deceleration/decel, restraining coil, electromagnetic relay.
Fig. 5 is the diagram of circuit of the abnormity diagnosis action of the 1st and the 2nd operational part in the presentation graphs 2.
Fig. 6 is illustrated in the 1st and the 2nd threshold value of the car deceleration/decel that the 1st among Fig. 2 and the 2nd operational part set and the diagram of curves of the relation between the car position.
Fig. 7 is the diagram of curves that is illustrated in the monitoring mode of overrunning of the 3rd among Fig. 2 and the setting of the 4th operational part.
Fig. 8 is the circuit diagram of braking force control system of the lift appliance of expression embodiments of the present invention 2.
Fig. 9 is the diagram of circuit of the action of the 1st and the 2nd operational part in the presentation graphs 8.
Figure 10 is the circuit diagram of braking force control system of the lift appliance of expression embodiments of the present invention 3.
The specific embodiment
Below, with reference to description of drawings preferred implementation of the present invention.
Embodiment 1
Fig. 1 is the constructional drawing of the lift appliance of expression embodiments of the present invention 1.In the drawings, car 1 and counterweight 2 are suspended in the hoistway by the main rope 3 as suspension unit, and by propulsive effort lifting in hoistway of towing machine 4.
Be provided with towing machine coder section 10 at towing machine electrical motor 6, it produces signal corresponding to rotative speed that with the rotative speed of the S. A. of towing machine, namely drives rope sheave 5.Towing machine coder section 10 has and produces respectively independently the 1st and the 2nd towing machine coder 10a, the 10b (Fig. 2) of detection signal.
Near the upper end floor of hoistway, be provided with top hoistway switch 11.Near the lower end floor of hoistway, be provided with bottom hoistway switch 12.Hoistway switch 11,12 is used as the location correction switch, for detection of the absolute location of car 1 and proofread and correct car position information.The operation of cam 13 of operation hoistway switch 11,12 is installed at car 1.
Be provided with car buffer 14 and counterweight buffer 15 in the bottom of hoistway (melt pit).Car buffer 14 be configured in car 1 under.Counterweight buffer 15 be configured in counterweight 2 under.
Be provided with governor rope sheave 16 on the top of hoistway.Be provided with tension wheel 17 in the bottom of hoistway.Hang speed controller rope (overrun and detect rope) 18 at governor rope sheave 16 and tension wheel 17 volumes.The both ends of speed controller rope 18 are connected with car 1.Speed controller rope 18 is followed the lifting of car 1 and is circulated.Therefore, governor rope sheave 16 and tension wheel 17 are with the speed rotation corresponding to the gait of march of car 1.
Be provided with governor coder section 19 at governor rope sheave 16, it produces and the rotative speed of governor rope sheave 16, the i.e. signal corresponding with the speed of car 1.Governor coder section 19 has and produces respectively independently the 1st and the 2nd governor coder 19a, the 19b (Figure 10) of detection signal.
Brake equipment 7 is by braking force control system 20 controls.From towing machine coder section 10, hoistway switch 11,12 and the signal input brake control setup 20 of governor coder section 19.And, the signal input brake control setup 20 corresponding with the electric current of the electromagnet of brake equipment 7.
Braking force control system 20 is controlled the braking force of brake equipment 7 according to from the signal of towing machine coder section 10 and the current signal of electromagnet.Braking force control system 20 is controlled the braking force of brake equipment 7 when making car 1 emergent stopping, so that the deceleration/decel of car 1 can be not excessive.
Below, Fig. 2 is the circuit diagram of the braking force control system 20 in the presentation graphs 1.Braking force control system 20 has the 1st and the 2nd brake control section 21 of controlling independently respectively brake equipment 7,22 and the monitoring unit 23 of overrunning.
In the electromagnet of brake equipment 7, be provided with restraining coil (magnet coil) 24.By making electric current flow through this restraining coil 24, electromagnet is energized, and produces the electromagnetic force of the braking force that is used for brake off device 7, and brake shoe 9 leaves brake wheel 8.And by cutting off the energising to restraining coil 24, the excitation of electromagnet is disengaged, and by the elastic force of retarding spring, brake shoe 9 is pressed against on the brake wheel 8.In addition, flow to the current value of restraining coil 24 by control, can control the braking force of brake equipment 7.
Discharging resistance 25 and the 1st discharge diode 26 are connected in series the circuit and the restraining coil 24 that obtain to be connected in parallel.And the 2nd discharge diode 31 is connected in the two ends of restraining coil 24 in parallel by the 1st and the 2nd electromagnetic relay 27a, 27b and the 3rd and the 4th electromagnetic relay 29e1,29e2.The the 3rd and the 4th electromagnetic relay 29e1,29e2 are normally closed relays.
The 3rd electromagnetic relay 29e1 and the 1st electromagnetic relay 27a are connected in series.The 4th electromagnetic relay 29e2 and the 2nd electromagnetic relay 27b are connected in series.The 1st of restraining coil 24 connects power supply with the 3rd electromagnetic relay 27a, 29e1 side.The the 2nd and the 4th electromagnetic relay 27b of restraining coil 24,29e2 side are by brake switch 32 ground connection.Brake switch 32 adopts semiconductor switch.
On/off by braking detection unit 33 control brake switches 32.Braking detection unit 33 connects brake switch 32 when car 1 lifting, makes restraining coil 24 excitations, the braking force of brake off device 7.Braking detection unit 33 disconnects brake switch 32 when car 1 stops, and makes restraining coil 24 demagnetizations, makes the braking force (the maintenance car is static) that produces brake equipment 7.
In addition, detecting certain of lift appliance when unusual, braking detection unit 33 disconnects brake switch 32, and electromagnetic relay 27a, 27b are disconnected, and makes restraining coil 24 demagnetizations, makes brake equipment 7 carry out braking maneuver.Thus, car 1 emergent stopping.Discharging resistance 25 and the 1st discharge diode 26 reduce rapidly the inducing current that flows through in the restraining coil 24 after electromagnetic relay 27a, 27b disconnect, and produce as early as possible braking force.
The function of braking detection unit 33 is for example realized by the 1st microcomputer that arranges in the elevator control gear of the operation of controlling car 1.That is, in the 1st microcomputer, store the program of braking the function of detection unit 33 for realization.
The 1st brake control section (master control part) 21 has electromagnetic relay 27a, 27b, 29e1,29e2, the 2nd discharge diode 31, brake switch 32 and braking detection unit 33.
Detect the electric current that flows through restraining coil 24 by the 1st and the 2nd current probe 34,35.The 1st car position test section 38 comprises the 1st governor coder 19a and hoistway switch 11,12.The 2nd car position test section 39 comprises the 2nd governor coder 19b and hoistway switch 11,12.
Restraining coil 24 is connected with power supply via being connected in series the circuit that obtains with the 5th with the 6th electromagnetic relay 29a1,29b1 with end points between the 1st electromagnetic relay 27a.End points between restraining coil 24 and the 2nd electromagnetic relay 27b is via the 7th and the 8th electromagnetic relay 29a2,29b2 and the 1st and the 2nd deceleration/ decel master cock 42,43 are connected in series the circuit ground that obtains.
With the 5th and the 6th electromagnetic relay 29a1,29b1, restraining coil 24, and the 7th and the 8th electromagnetic relay 29a2,29b2 be connected in series the circuit that obtains, be connected in parallel with the 3rd discharge diode 44.
The the 1st and the 2nd deceleration/decel master cock 42, the 43rd is for the switch at the deceleration/decel of car 1 emergency braking time control car 1.And deceleration/ decel master cock 42,43 adopts semiconductor switch.It is effective when all closed that the 1st and the 2nd deceleration/ decel master cock 42,43 deceleration/decel are controlled at electromagnetic relay 29a1,29b1,29a2,29b2, invalid when any disconnects.
On/off by the 1st operational part 45 controls the 1st deceleration/decel master cock 42.The 1st operational part 45 is according to from the signal of the 1st and the 2nd coder 10a, 10b and from the 1st and the 2nd car position test section 38,39 signal, computing car position y[m], car speed V[m/s] and car deceleration/decel γ [m/s
2].And the 1st operational part 45 is controlled the on/off of the 1st deceleration/decel master cock 42 according to the current value of car position, car speed, car deceleration/decel and restraining coil 24.The 1st operational part 45 is made of the 2nd microcomputer.
On/off by the 2nd operational part 46 controls the 2nd deceleration/decel master cock 43.The 2nd operational part 46 is according to from the signal of the 1st and the 2nd coder 10a, 10b and from the 1st and the 2nd car position test section 38,39 signal, and relative the 1st operational part 45 is computing car position y[m independently], car speed V[m/s] and car deceleration/decel γ [m/s
2].And the 2nd operational part 46 is controlled the on/off of the 2nd deceleration/decel master cock 43 according to the current value of car position, car speed, car deceleration/decel and restraining coil 24.The 2nd operational part 46 is made of the 3rd microcomputer.
Between the 1st operational part 45 and the 2nd operational part 46, be connected with two-port RAM 47.Deceleration/decel control detection unit 48 has the 1st and the 2nd operational part 45,46 and two-port RAM 47.
The the 5th and the 7th electromagnetic relay 29a1,29a2 open and close by the 1st drive coil 49a.Between the 1st drive coil 49a and ground, be connected with the 1st drive coil master cock 50, be used for making the energising on/off to the 1st drive coil 49a.The 1st drive coil master cock 50 adopts semiconductor switch.The on/off of the 1st drive coil master cock 50 is by 45 controls of the 1st operational part.
The the 6th and the 8th electromagnetic relay 29b1,29b2 open and close by the 2nd drive coil 49b.Between the 2nd drive coil 49b and ground, be connected with the 2nd drive coil master cock 51, be used for making the energising on/off to the 2nd drive coil 49b.The 2nd drive coil master cock 51 adopts semiconductor switch.On/off by the 2nd operational part 46 controls the 2nd drive coil master cock 51.
The 9th electromagnetic relay 29a3 that opens and closes with the switching interlock of the 5th electromagnetic relay 29a1 and the 10th electromagnetic relay 29a4 that opens and closes with the switching interlock of the 7th electromagnetic relay 29a2 are connected in series between the VDD-to-VSS by resistor 52.The 1st operational part 45 detects the voltage of the mains side of resistor 52.Thus, the 1st operational part 45 monitors the open and-shut mode of the 5th and the 7th electromagnetic relay 29a1,29a2.
The 11st electromagnetic relay 29b3 that opens and closes with the switching interlock of the 6th electromagnetic relay 29b1 and the 12nd magnetic relay 29b4 that opens and closes with the switching interlock of the 8th electromagnetic relay 29b2 are connected in series between the VDD-to-VSS by resistor 53.The 2nd operational part 46 detects the voltage of the mains side of resistor 53.Thus, the 2nd operational part 46 monitors the open and-shut mode of the 6th and the 8th electromagnetic relay 29b1,29b2.
The the 1st and the 2nd operational part 45,46 will compare for the open and-shut mode of drive coil master cock 50,51 instruction and electromagnetic relay 29a1,29b1,29a2,29b2, judges whether electromagnetic relay 29a1,29b1,29a2,29b2 have produced the faults such as contact is deposited.
The 1st operational part 45 will compare from the signal of the 1st current probe 34 with from the signal of the 2nd current probe 35, judge whether the 1st and the 2nd current probe 34,35 has produced fault.And the 1st operational part 45 will compare from the signal of the 1st towing machine coder 10a with from the signal of the 2nd towing machine coder 10b, judge whether the 1st and the 2nd towing machine coder 10a, 10b have produced fault.
In addition, the 1st operational part 45 will compare from the signal of the 1st car position test section 38 with from the signal of the 2nd car position test section 39, judge whether the 1st and the 2nd car position test section 38,39 has produced fault.
In addition, the 1st operational part 45 receives the operation result of the 2nd operational part 46 by two-port RAM 47, and compares with the operation result of the 1st operational part 45, judges whether the 1st and the 2nd operational part 45,46 has produced fault.
The 2nd operational part 46 will compare from the signal of the 1st current probe 34 with from the signal of the 2nd current probe 35, judge whether the 1st and the 2nd current probe 34,35 has produced fault.And the 2nd operational part 46 will compare from the signal of the 1st towing machine coder 10a with from the signal of the 2nd towing machine coder 10b, judge whether the 1st and the 2nd towing machine coder 10a, 10b have produced fault.
In addition, the 2nd operational part 46 will compare from the signal of the 1st car position test section 38 with from the signal of the 2nd car position test section 39, judge whether the 1st and the 2nd car position test section 38,39 has produced fault.
In addition, the 2nd operational part 46 receives the operation result of the 1st operational part 45 by two-port RAM 47, and compares with the operation result of the 2nd operational part 46, judges whether the 1st and the 2nd operational part 45,46 has produced fault.
When above-mentioned fault occured, the instruction that the 1st and the 2nd operational part 45,46 outputs disconnect electromagnetic relay 29a1,29b1,29a2,29b2 was simultaneously to the 1st signalling trouble section 54 output fault detection signals.The advisory of certain fault has occured to elevator control gear with the 2nd brake control section 22 in the 1st signalling trouble section 54 when being transfused to fault detection signal.Elevator control gear moves when the 2nd brake control section 22 et out of order, makes car 1 for example be accommodated to recently floor, the operation of lift appliance is stopped, simultaneously to the external notification fault.
The 2nd brake control section (deceleration/decel control part) 22 has electromagnetic relay 29a1,29a2,29a3,29a4,29b1,29b2,29b3,29b4, deceleration/ decel master cock 42,43, discharge diode 44, deceleration/decel control detection unit 48, drive coil 49a, 49b, drive coil master cock 50,51, resistor 52, the 53 and the 1st signalling trouble section 54.
The the 3rd and the 4th electromagnetic relay 29e1,29e2 are driven by the 5th drive coil 49e.The the 13rd～the 16th electromagnetic relay 29c1,29c2,29d1,29d2 are connected in series between the 5th drive coil 49e and the ground.
The the 13rd and the 14th electromagnetic relay 29c1,29c2 open and close by the 3rd drive coil 49c.Between the 3rd drive coil 49c and ground, be connected with the 3rd drive coil master cock 55, be used for making the energising on/off to the 3rd drive coil 49c.The 3rd drive coil master cock 55 adopts semiconductor switch.
On/off by the 3rd operational part 56 controls the 3rd drive coil master cock 55.The 3rd operational part 56 is according to from the 1st and the 2nd car position test section 38,39 signal, computing car position and car speed.And the 3rd operational part 56 is controlled the on/off of the 3rd drive coil master cock 55 according to car position and car speed.In addition, the 3rd operational part 56 is made of the 4th microcomputer.
The the 15th and the 16th electromagnetic relay 29d1,29d2 open and close by the 4th drive coil 49d.Between the 4th drive coil 49d and ground, be connected with the 4th drive coil master cock 57, be used for making the energising on/off to the 4th drive coil 49d.The 4th drive coil master cock 57 adopts semiconductor switch.
On/off by the 4th operational part 58 controls the 4th drive coil master cock 57.The 4th operational part 58 is according to from the 1st and the 2nd car position test section 38,39 signal, computing car position and car speed.And the 4th operational part 58 is controlled the on/off of the 4th drive coil master cock 57 according to car position and car speed.In addition, the 4th operational part 58 is made of the 5th microcomputer.
Two-port RAM 59 is connected between the 3rd operational part 56 and the 4th operational part 48.
The 17th electromagnetic relay 29c3 that opens and closes with the switching interlock of the 13rd electromagnetic relay 29c1 and the 18th electromagnetic relay 29c4 that opens and closes with the switching interlock of the 14th electromagnetic relay 29c2 are connected in series between the VDD-to-VSS by resistor 60.The 3rd operational part 56 detects the voltage of the mains side of resistor 60.Thus, the 3rd operational part 56 monitors the open and-shut mode of the 13rd and the 14th electromagnetic relay 29c1,29c2.
The 19th electromagnetic relay 29d3 that opens and closes with the switching interlock of the 15th electromagnetic relay 29d1 and the 20th electromagnetic relay 29d4 that opens and closes with the switching interlock of the 16th electromagnetic relay 29d2 are connected in series between the VDD-to-VSS by resistor 61.The 4th operational part 58 detects the voltage of the mains side of resistor 61.Thus, the 4th operational part 58 monitors the open and-shut mode of the 15th and the 16th electromagnetic relay 29d1,29d2.
The the 3rd and the 4th operational part 56,58 will compare for the open and-shut mode of drive coil master cock 55,57 instruction and electromagnetic relay 29c1,29c2,29d1,29d2, judges whether electromagnetic relay 29c1,29c2,29d1,29d2 have produced the faults such as contact is deposited.
The 3rd operational part 56 receives the operation result of the 4th operational part 58 by two-port RAM 59, and compares with the operation result of the 3rd operational part 56, judges whether the 3rd and the 4th operational part 56,58 has produced fault.
The 4th operational part 58 receives the operation result of the 3rd operational part 56 by two-port RAM 59, and compares with the operation result of the 4th operational part 58, judges whether the 3rd and the 4th operational part 56,58 has produced fault.
When above-mentioned fault occured, the 3rd and the 4th operational part 56,58 was to the 2nd signalling trouble section 62 output fault detection signals.The advisory of certain fault has occured to elevator control gear with the monitoring unit 23 of overrunning in the 2nd signalling trouble section 62 when being transfused to fault detection signal.Elevator control gear moves when overrunning monitoring unit 23 et out of order, makes car 1 for example be accommodated to recently floor, the operation of lift appliance is stopped, simultaneously to the external notification fault.
The monitoring unit of overrunning 23 has electromagnetic relay 29c1,29c2,29c3,29c4,29d1,29d2,29d3,29d4, drive coil 49c, 49d, 49e, drive coil master cock 55,57, the 3rd and the 4th operational part 56,58, two-port RAM 59, resistor 60, the 61 and the 2nd signalling trouble section 62.
The monitoring unit of overrunning 23 can relative the 1st brake control section 21 make car 1 emergent stopping independently when detecting overrunning of car 1 and advance.And the monitoring unit of overrunning 23 is not used the signal from the 1st brake control section 21 and elevator control gear, can independently monitor the speed of car 1, and the overrunning of independent detection car 1.
The following describes action.Fig. 3 is the 1st and the 2nd operational part 45 in the presentation graphs 2, the diagram of circuit of 46 deceleration/decel control action, and the 1st and the 2nd operational part 45,46 is carried out processing shown in Figure 3 simultaneously concurrently.In Fig. 3, the 1st and the 2nd operational part 45,46 at first carries out initial setting (step S1) to processing needed a plurality of parameter.In this example, as parameter, be set in car speed (the driving rope sheave speed) V0[m/s that car uses in stopping to judge], stop the car speed V1[m/s of deceleration/decel control], the threshold value I0[A of the current value of restraining coil 24] and the 1st and the 2nd threshold gamma 1[m/s of car deceleration/decel
2], γ 2[m/s
2] (γ 1＜γ 2).
With the predefined sampling period, periodically repeatedly carry out the processing behind the initial setting.That is, the 1st and the 2nd operational part 45,46 with the predetermined cycle be taken into signal from the 1st and the 2nd coder 10a, 10b, from the 1st and the 2nd current probe 34,35 signal and from the 1st and the 2nd car position test section 38,39 signal (step S2).Then, according to the signal from the 1st and the 2nd coder 10a, 10b, computing car speed V[m/s] and car deceleration/decel γ [m/s
2] (step S3).
Then, judge that car 1 is whether just in the emergent stopping action (step S4).Specifically, the 1st and the 2nd operational part 45,46 car speed (electrical motor rotative speed) greater than the current value that stops to judge speed V0 and restraining coil 24 when stopping to judge current value I 0, be judged to be car 1 and be in the emergent stopping action.If not being in the emergent stopping action, then electromagnetic relay 29a1,29b1,29a2,29b2 all are made as off-state (step S10).
If be in the emergent stopping action, judge that then whether car deceleration/decel γ is greater than the 1st threshold gamma 1 (step S5).And, if γ≤γ 1 then all is made as off-state (step S10) to electromagnetic relay 29a1,29b1,29a2,29b2.And, if γ＞γ 1 then makes electromagnetic relay 29a1,29b1,29a2,29b2 all closed (step S6).
At this, when car 1 emergent stopping, energising to towing machine electrical motor 6 also is cut off, so after produce the emergent stopping instruction to braking force actual have an effect during, because the overbalance of the loading of car 1 side and the loading of counterweight 2 exists the situation of car 1 acceleration and the situation that car 1 slows down.
In the 1st and the 2nd operational part 45,46, if γ≤γ 1 then is judged to be car 1 acceleration after just producing the emergent stopping instruction, and electromagnetic relay 29a1,29b1,29a2,29b2 are made as off-state, so that braking force is had an effect as early as possible.And, if γ＞γ 1 then is judged to be car 1 and slows down, make electromagnetic relay 29a1,29b1,29a2,29b2 closure and implement deceleration/decel control, so that deceleration/decel can be not excessive.
In deceleration/decel control, the 1st and the 2nd operational part 45,46 judges that whether car deceleration/decel γ is greater than the 2nd threshold gamma 2 (step S7).And, if γ＞γ 2 then in order to suppress car deceleration/decel γ, makes deceleration/decel master cock 42,43 according to predefined switching dutycycle (for example 50%) on/off (step S8).Thus, restraining coil 24 is applied in predetermined voltage, has controlled the braking force of brake equipment 7.At this moment, deceleration/decel master cock 42,43 on/off synchronously with one another.
And if γ≤γ 2, then deceleration/decel master cock 42,43 still remains open state.Then, the 1st and the 2nd operational part 45,46 is controlled and is stopped to judge (step S9).In control stops to judge, judge that whether car speed V is less than threshold value V1.And, if V 〉=V1 then directly returns input processing (step S2).If V＜V1 then all is made as off-state (step S10) to electromagnetic relay 29a1,29b1,29a2,29b2, then return input processing (step S2).
At this, Fig. 4 is state, and the instruction diagram that changes of time of deceleration/decel master cock 42,43 state of the electric current that is illustrated in the car speed that just produces when car 1 slows down after the emergent stopping instruction, car deceleration/decel, restraining coil 24, electromagnetic relay 29a1,29b1,29a2,29b2.
Suppose when producing emergent stopping car 1 deceleration that will begin in a minute.And, when deceleration/decel when the moment, T2 reached γ 1, electromagnetic relay 29a1,29b1,29a2,29b2 are closed, when deceleration/decel when the moment, T3 reached γ 2, deceleration/decel master cock 42,43 on/off.Then, during less than V1, electromagnetic relay 29a1,29b1,29a2,29b2 disconnect in car speed, and deceleration/decel master cock 42,43 deceleration/decel control stop.
Fig. 5 is the 1st and the 2nd operational part 45 in the presentation graphs 2, the diagram of circuit of 46 abnormity diagnosis action.In the moment that each later processing of the input processing (step S2) of the 1st and the 2nd operational part 45,46 in Fig. 3 finishes, call diagnostic process shown in Figure 5.
In abnormity diagnosis action, judge the matching (step S11) from the input value of sensor and operational part 45,46 operation values.Specifically, not unusual if the difference of input value and operation values in predetermined scope, then is judged to be, and the next one that returns among Fig. 3 is processed.And, if the difference of input value and operation values surpasses predetermined scope, then be judged to be unusually, electromagnetic relay 29a1,29b1,29a2,29b2 have been made as off-state (step S12), to the 1st signalling trouble section 54 output fault detection signals (step S13).
Fig. 6 is that expression is to the 1st among Fig. 2 and the 2nd operational part 45, the 1st and the 2nd threshold value of the 46 car deceleration/decels of setting and the diagram of curves of the relation between the car position.The 1st operational part 45 is set, the 1st and the 2nd threshold gamma 1, γ 2 are changed according to car position as shown in Figure 6.And, the 2nd operational part 46 is set 1st and 2nd threshold gamma 1, the γ 2 identical with the 1st operational part 45.Specifically, set and to become near make the floor endways the 1st and the 2nd threshold gamma 1, γ 2 along with increasing gradually towards terminal floor.
Fig. 7 is that expression is to the diagram of curves of the 3rd among Fig. 2 and the 4th operational part 56,58 monitoring modes of overrunning of setting.The monitoring mode of overrunning is configured to as changing according to car position.Specifically, the monitoring mode of overrunning is configured to common traveling mode when relatively car 1 is normally advanced to the opposing party's terminal floor from terminal floor of the side and guarantees the surplus of being scheduled to.Therefore, near the monitoring mode of overrunning the floor is configured to as along with reducing gradually towards terminal floor endways.
The the 3rd and the 4th operational part 56,58 monitors respectively car speed independently, when car speed is overrun monitoring mode, corresponding drive coil master cock 55,57 is disconnected.Thus, drive coil 49c, 49d demagnetization, electromagnetic relay 29c1,29c2,29d1,29d2 disconnect drive coil 49e demagnetization.After drive coil 49e demagnetization, electromagnetic relay 29e1,29e2 disconnect, car 1 emergent stopping.The deceleration/decel control of this moment is undertaken by the 2nd brake control section 22.
In this lift appliance, deceleration/decel control part i.e. the 2nd brake control section 22 is that the 1st brake control section was arranged in 21 minutes with master control part, so when deceleration/decel control part et out of order, can car be stopped.And the 2nd brake control section 22 has the 1st and the 2nd operational part 45,46, and it carries out the action that the braking force that makes brake equipment 7 reduces independently of one another by calculation process, so can improve reliability.In addition, to the 1st and the 2nd operational part 45,46 settings of carrying out as shown in Figure 6, the 2nd threshold gamma 2 is changed according to car position, thus can prevent since car position so that the sensation of taking during emergent stopping produces larger difference.
And, near the 2nd threshold gamma 2 the floor is configured to as along with increasing gradually towards terminal floor endways, so endways near the floor, can shorten from producing after the emergent stopping instruction stopping distance till stopping to car 1, the speed that car 1 and counterweight 2 impact car buffer 14 and counterweight buffer 15 can be reduced simultaneously, the capacity miniaturization of car buffer 14 and counterweight buffer 15 can be made.
In addition, the 1st and the 2nd operational part 45,46 operation results that pass through more each other detect the situation of the 1st and the 2nd operational part 45,46 at least one party's et out of orders, so can further improve reliability.
In addition, the 2nd brake control section 22 is when the 1st and the 2nd operational part 45,46 at least one party's et out of order, and it is invalid that the control of the deceleration/decel of the 2nd brake control section 22 is made as, so car 1 is stopped.
And, the 2nd brake control section 22 in car speed greater than the electric current of predetermined speed V0 and restraining coil 24 during less than predetermined value I0, be judged to be brake equipment 7 and be in the emergent stopping action, so can relative the 1st brake control section 21 detect more reliably independently the emergency braking action.
In addition, braking force control system 20 also has the monitoring unit of overrunning 23, it makes car 1 emergent stopping when car speed reaches predefined overrunning, the monitoring unit 23 of overrunning is set with endways near the floor along with the monitoring mode of overrunning that reduces gradually towards terminal floor, so can further reduce the speed that car 1 and counterweight 2 impact car buffer 14 and counterweight buffer 15, can make the capacity miniaturization of car buffer 14 and counterweight buffer 15.And, can shorten melt pit depth dimensions and the hoistway upper dimension of hoistway.
Below, Fig. 8 is the circuit diagram of braking force control system of the lift appliance of expression embodiments of the present invention 2.This example is in Function Integration Mechanism to the 1 operational part 45 of the 3rd operational part 56 of embodiment 1, in Function Integration Mechanism to the 2 operational parts 46 of the 4th operational part 58 of embodiment 1.
And Fig. 9 is the 1st and the 2nd operational part 45 in the presentation graphs 8, the diagram of circuit of 46 action.The the 1st and the 2nd operational part 45,46 is repeatedly carried out fault detection with the predetermined cycle and is processed (step S14), the Check processing of overrunning (step S15) and braking control processing (step S16).And the 1st and the 2nd operational part 45,46 is processed one in one of the mode of individual event task and is carried out successively above-mentioned processing with processing.Other structures are identical with embodiment 1.
According to this lift appliance, can keep the reliability of duplex system, realize the miniaturization of braking force control system and the reduction of cost.
Below, Figure 10 is the circuit diagram of braking force control system of the lift appliance of expression embodiments of the present invention 3.This example use a plurality of interfaces to integrate to process in the such circuit structure of embodiment 2 for the 1st and the 2nd operational part 45,46 input/output signal.
In the drawings, in multiplexing operational part 71, be provided with the 1st and the 2nd operational part 45,46, two-port RAM 47, signalling trouble section 54, input interface 72, output interface 73, the 1st input connector 74, the 2nd input connector 75, the 1st out connector 76, the 2nd out connector 77 and the 1st～the 4th data bus 78～81.
Incoming signal from multiplexing operational part 71 outsides is input to input interface 72 by the 1st and the 2nd input connector 74,75, is assigned to the 1st and the 2nd data bus 78,79 at input interface 72, and inputs the 1st and the 2nd operational part 45,46.
Be input to output interface 73 from the 1st and the 2nd operational part 45,46 output signal by the 3rd and the 4th data bus 80,81, output to the outside from output interface 73 by the 1st and the 2nd out connector 76,77.
That is, by public input interface 72 input the 1st and the 2nd operational parts 45,46, output to the outside from the 1st and the 2nd operational part 45,46 output signal by public output interface 73 for the 1st and the 2nd operational part 45,46 incoming signal.At this moment, input interface 72 and output interface 73 have the pooling feature of the stability that improves each signal.
Detect at car position that interface portion 82 is provided with cage position signal adaptor union 83, the detection signal adaptor union 84, the 1st of overrunning～the 6th energy disperser 85a～85f, the 1st governor encoder interfaces 86a and the 2nd governor encoder interfaces 86b.
Cage position signal adaptor union 83 is connected with the 1st input connector 74.The detection signal adaptor union 84 of overrunning is connected with the 1st out connector 76.Energy disperser 85a～85f improves stability and the noiseproof feature of each signal.Energy disperser 85a～85f for example adopts optic coupler.
In the 3rd and the 4th drive coil master cock 55,57 and overrun between the detection signal adaptor union 84, get involved that the 5th and the 6th energy disperser 85e, 85f being set.
Be provided with car speed signal connector 88, deceleration/decel control signal adaptor union the 89, the 7th～the 12nd energy disperser 85g～851, the 1st towing machine encoder interfaces 90a and the 2nd towing machine encoder interfaces 90b in braking control interface section 87.
Car speed signal connector 88 is connected with the 2nd input connector 75.Deceleration/decel control signal adaptor union 89 is connected with the 2nd out connector 77.Stability and the noiseproof feature of each signal improved in energy disperser 85g～851.Optic coupler is for example adopted in energy disperser 85g～851.
The the 1st and the 2nd deceleration/decel master cock 42, the 43 and the 1st and the 2nd drive coil master cock 50,51 and deceleration/decel control signal adaptor union 89 between, get involved that the 9th～the 12nd energy disperser 85i～851 being set.
And, each interface portion 82,87 with multiplexing operational part 71 between the sending and receiving of signal carry out according to identical rule (communication protocol).
In this lift appliance, utilize an input interface 72 and output interface 73 to integrate the sending and receiving of the signal that carries out duplex system, so can cut down part count, simplified structure.
And, because intensive on two input connectors 74,75 to the incoming signal of input interface 72, intensive on two out connectors 76,77 from the output signal of output interface 73, so further simplified structure.
In addition, rule at the sending and receiving of adaptor union 74,75,76,77,83,84,88,89 signal is identical, so can utilize easily multiplexing operational part 71 for example to realize forbidding the function that car 1 is advanced under the state that car door or stop door are opened.
In addition, in above-mentioned example, carry out emergent stopping according to the current value of car speed and restraining coil 24 and judge, but also can on the basis of these factors, consider that also the differential value of the current value of restraining coil 24 is judged.Specifically, car speed greater than the electric current of predetermined speed, restraining coil 24 less than the differential value of the current value of predetermined value and restraining coil 24 for negative situation under, be judged to be and be in the emergent stopping.Thus, the error detection that the cab interior vibration in the time of can avoiding stopping because of car causes.
And, concrete threshold value is not shown, but for example in above-mentioned example, if be made as V0=0.5[m/s], V1=0.1[m/s], γ 1=2.0[m/s
2], γ 2=3.0[m/s
2], I0=1[A], then average emergent stopping deceleration/decel is 3.0[m/s
2] about, the burden of the passenger in the car 1 is reduced, and stopping distance can be not elongated.
In addition, in above-mentioned example, only show a brake equipment 7, but also can use a plurality of brake equipments 7 that are connected in parallel.Thus, when a brake equipment fault, other brake equipment actions are so can improve the reliability of lift appliance integral body.
In addition, in above-mentioned example, brake equipment 7 is located on the towing machine 4, but also can be located at other positions.For example, brake equipment also can be to be equipped on car brake on the car, to grasp main rope and come wire stopper that car is braked etc.
In addition, as suspension unit, for example also can use the cross section as the rope of circle or have the band of flat cross sectional shape.
Claims (7)
1. lift appliance, it has:
Towing machine, it has the electrical motor that drives rope sheave and make described driving rope sheave rotation;
Volume hangs over the suspension unit on the described driving rope sheave;
Car, it is being hung by described suspension unit, and by described towing machine and lifting;
The brake equipment that advancing of described car braked; With
Control the braking force control system of described brake equipment,
Described braking force control system has: the 1st brake control section, and it makes described brake equipment action when unusual detecting, and makes described car emergent stopping; With the 2nd brake control section, when the action of the emergency braking of described the 1st brake control section, reach threshold value when above at the deceleration/decel of described car, the 2nd brake control section reduces the braking force of described brake equipment,
Described the 2nd brake control section has the 1st and the 2nd operational part, and it carries out the action that the braking force that makes described brake equipment reduces independently of each other by calculation process,
In described the 1st operational part, set described threshold value it changed according to car position,
In described the 2nd operational part, similarly set described threshold value with described the 1st operational part;
Wherein, described the 2nd brake control section and described the 1st brake control section are divided and are arranged, and described the 2nd brake control section judging that brake equipment is in the emergent stopping action, and relatively described the 1st brake control section detects the emergency braking action independently reliably.
2. lift appliance according to claim 1, described threshold value be configured near the floor endways along with increasing gradually towards terminal floor.
3. lift appliance according to claim 1, the described the 1st and the 2nd operational part operation result by more each other detects the situation of at least either party et out of order in the described the 1st and the 2nd operational part.
4. during at least either party et out of order in the described the 1st and the 2nd operational part of lift appliance according to claim 3, described the 2nd brake control section, it is invalid that the control of the deceleration/decel of the described car that is undertaken by described the 2nd brake control section is made as.
5. lift appliance according to claim 1, described brake equipment has restraining coil, produces electromagnetic force for brake off power by encouraging described restraining coil, produces braking force by cutting off to the energising of described restraining coil,
Described the 2nd brake control section during less than predetermined value, is judged to be described brake equipment and is in the emergent stopping action greater than the electric current of predetermined speed and described restraining coil in the speed of described car.
6. lift appliance according to claim 1, described braking force control system also has the monitoring unit of overrunning, and it makes described car emergent stopping when car speed reaches predefined overrunning,
In the described monitoring unit of overrunning, be set with and make endways near the floor along with the monitoring mode of overrunning that reduces gradually towards terminal floor.
7. lift appliance according to claim 1, for the described the 1st and the incoming signal of the 2nd operational part input the described the 1st and the 2nd operational part by public input interface,
From the described the 1st and the output signal of the 2nd operational part output to the outside by public output interface.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2007/060575 WO2008142790A1 (en) | 2007-05-24 | 2007-05-24 | Elevator apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101663218A CN101663218A (en) | 2010-03-03 |
| CN101663218B true CN101663218B (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800525879A Active CN101663218B (en) | 2007-05-24 | 2007-05-24 | Elevator apparatus |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2147883B1 (en) |
| JP (1) | JP5111502B2 (en) |
| KR (1) | KR101121343B1 (en) |
| CN (1) | CN101663218B (en) |
| WO (1) | WO2008142790A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5653758B2 (en) | 2008-12-05 | 2015-01-14 | 三菱電機株式会社 | Elevator equipment |
| CN102414110A (en) * | 2009-05-01 | 2012-04-11 | 三菱电机株式会社 | Elevator device |
| US9457987B2 (en) | 2011-02-04 | 2016-10-04 | Otis Elevator Company | Stop sequencing for braking device |
| US9385637B2 (en) * | 2014-05-21 | 2016-07-05 | Hamilton Sundstrand Corporation | Brake controller |
| CN104044964A (en) * | 2014-07-02 | 2014-09-17 | 吴优良 | Intelligent elevator device |
| JP6218969B2 (en) * | 2014-11-27 | 2017-10-25 | 三菱電機株式会社 | Elevator position detection device |
| US11415191B2 (en) * | 2019-10-04 | 2022-08-16 | Otis Elevator Company | System and method configured to identify conditions indicative of electromagnetic brake temperature |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1953926A (en) * | 2005-03-31 | 2007-04-25 | 三菱电机株式会社 | Elevator device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07157211A (en) | 1993-12-03 | 1995-06-20 | Mitsubishi Electric Corp | Brake device for elevator |
| JPH07206288A (en) * | 1994-01-14 | 1995-08-08 | Toshiba Corp | Elevator |
| JPH0840662A (en) * | 1994-07-28 | 1996-02-13 | Hitachi Ltd | Elevator device |
| JP2001233553A (en) | 2000-02-24 | 2001-08-28 | Toshiba Corp | Control device for double deck elevator |
| JP4689337B2 (en) | 2005-04-26 | 2011-05-25 | 三菱電機株式会社 | Elevator equipment |
| US7896136B2 (en) * | 2006-03-02 | 2011-03-01 | Mitsubishi Electric Corporation | Elevator apparatus with brake control device |
| EP2048104B1 (en) * | 2006-07-27 | 2014-08-20 | Mitsubishi Electric Corporation | Elevator device |
-
2007
- 2007-05-24 EP EP07744009.7A patent/EP2147883B1/en active Active
- 2007-05-24 WO PCT/JP2007/060575 patent/WO2008142790A1/en active Application Filing
- 2007-05-24 JP JP2009515058A patent/JP5111502B2/en active Active
- 2007-05-24 KR KR1020097018449A patent/KR101121343B1/en active IP Right Grant
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1953926A (en) * | 2005-03-31 | 2007-04-25 | 三菱电机株式会社 | Elevator device |
Non-Patent Citations (2)
| Title |
|---|
| JP特开7-206288A 1995.08.08 |
| JP特开平8-40662A 1996.02.13 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20100004999A (en) | 2010-01-13 |
| JP5111502B2 (en) | 2013-01-09 |
| WO2008142790A1 (en) | 2008-11-27 |
| JPWO2008142790A1 (en) | 2010-08-05 |
| CN101663218A (en) | 2010-03-03 |
| KR101121343B1 (en) | 2012-03-09 |
| EP2147883B1 (en) | 2017-11-29 |
| EP2147883A4 (en) | 2013-12-18 |
| EP2147883A1 (en) | 2010-01-27 |
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