CN103282298B - Termination floor forced deceleration device for elevator - Google Patents
Termination floor forced deceleration device for elevator Download PDFInfo
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- CN103282298B CN103282298B CN201080070968.1A CN201080070968A CN103282298B CN 103282298 B CN103282298 B CN 103282298B CN 201080070968 A CN201080070968 A CN 201080070968A CN 103282298 B CN103282298 B CN 103282298B
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- cage
- position detecting
- detecting sensor
- output
- consistency check
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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
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3492—Position or motion detectors or driving means for the detector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
- B66B3/02—Position or depth indicators
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Elevator Control (AREA)
Abstract
Provided is a termination floor forced deceleration device for an elevator which is capable of simplifying an installation adjustment and reducing time necessary for the installation adjustment. In the termination floor forced deceleration device for the elevator which has an overspeed monitoring unit that outputs a brake instruction for decelerating a car in the case where the speed of the car at a time when the car is positioned within a predetermined distance from the termination of a hoistway is equal to or higher than a predetermined speed set in advance, an action plate provided to the car, two position detection sensors that are provided in the hoistway in parallel along a lifting/lowering way of the car and detect the action plate, and a consistency check circuit that reverses an output therefrom in the case where the outputs from the two position detection sensors are consistent with each other on the basis of the outputs of the sensors are provided. The overspeed monitoring unit recognizes whether the car is positioned within the predetermined distance from the termination of the hoistway on the basis of the output from the consistency check circuit.
Description
Technical field
The present invention relates to the terminating layer forced reduction apparatus of elevator.
Background technology
In general, in elevator, prevent the energy disperser of cage or counterweight collision to be arranged at the pit of the bottom of hoistway by being used for.This energy disperser needs such stroke: even if when cage etc. collides with energy disperser at full speed, and cage etc. also can be made to cushion fully.The command speed of elevator is higher, and the stroke of these needs is longer.Therefore, the command speed of elevator is higher, needs to make the pit arranging energy disperser darker., when this command speed is increased to a certain degree, the degree of depth of required pit just becomes unpractical numerical value.Therefore, be usually provided with such device (terminating layer forced reduction apparatus): it makes buffer stroke shorter than the original length needed thus makes the depth shallower of pit, and, before colliding with energy disperser, cage etc. is slowed down.
Specifically, when cage close to the terminal of hoistway and the moving velocity of cage correspond to apart from terminal distance and more than predetermined supervelocity detection level time, this terminating layer forced reduction apparatus makes cage slow down forcibly.And, in the terminating layer forced reduction apparatus of so existing elevator, known such structure: cage is provided with position detecting switch, and, the cam (for example, referring to patent documentation 1) engaged with this position detecting switch is provided with near the terminal of near terminal and below above hoistway.In the existing terminating layer forced reduction apparatus described in this patent documentation 1, operating point is set at cam, is made the position detecting switch action engaged with cam by this operating point, detect that cage reaches the position of the terminal preset distance apart from hoistway thus.Further, the speed of cage is now confirmed, when it is more than supervelocity detection level, make cage slow down forcibly.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 10-324474 publication
Summary of the invention
The problem that invention will solve
At this, in order to make cage slow down fully in the terminal of hoistway, the command speed of elevator is higher, then need the speed at the farther location confirmation cage of distance terminal.Further, in the terminating layer forced reduction apparatus of existing elevator such described in patent documentation 1, in order to detect the position of cage, must set by cam the operating point making position detecting switch action.
Therefore, in order to set the operating point of the position for detecting cage in the position far away apart from terminal, the total length of required cam is elongated, if cam tilts a little, then the position of operating point will significantly change.Therefore, there is such problem: the mounting and adjusting of cam can expend miscellaneous time, and the mounting and adjusting time increases.
In addition, also there is such problem: if the total length of cam is elongated, then the amount of the material required for making of cam also can increase, thus causes the expense required for equipment to increase.
The present invention completes to solve such problem, and its acquisition is a kind of can be made mounting and adjusting simplify thus can shorten the terminating layer forced reduction apparatus of the elevator of the time required for mounting and adjusting.
For the means of dealing with problems
About the terminating layer forced reduction apparatus of elevator of the present invention, elevator has: cage, and described cage is configured in the hoistway of elevator in lifting mode freely; With supervelocity monitoring unit, the speed of the described cage when described cage is positioned at the position within the predetermined distance of terminal apart from described hoistway is more than the predetermined speed preset, described supervelocity monitoring unit exports the braking instruction for making described cage slow down, in the terminating layer forced reduction apparatus of described elevator, the terminating layer forced reduction apparatus of described elevator possesses: action plate, and described action plate is arranged at described cage; Two position-detection sensors, described two position-detection sensors are arranged in described hoistway, for detecting described action plate along the lift path of described cage; And consistency check circuit, according to the output of described two both position-detection sensors, when both output described is consistent, described consistency check circuit makes the output reversion from self, and described supervelocity monitoring unit identifies the position within distance predetermined described in the terminal whether described cage is positioned at apart from described hoistway according to the output from described consistency check circuit.
The effect of invention
In the terminating layer forced reduction apparatus of elevator of the present invention, serve and mounting and adjusting can be made to simplify thus the time required for mounting and adjusting of can shortening such effect.
Accompanying drawing explanation
Fig. 1 is the figure that the integral structure of the terminating layer forced reduction apparatus of elevator to embodiments of the present invention 1 is described.
Fig. 2 is the time diagram be described the operating state of the consistency check circuit of embodiments of the present invention 1.
The diagram of circuit of process when Fig. 3 is the power connection of the operation control part that embodiments of the present invention 1 are shown.
The time diagram that the operating state of consistency check circuit when Fig. 4 is sensor abnormality (the ON fault) to embodiments of the present invention 1 is described.
The time diagram that the operating state of consistency check circuit when Fig. 5 is sensor abnormality (the ON fault) to embodiments of the present invention 1 is described.
The time diagram that the operating state of consistency check circuit when Fig. 6 is sensor abnormality (the OFF fault) to embodiments of the present invention 1 is described.
The time diagram that the operating state of consistency check circuit when Fig. 7 is sensor abnormality (the OFF fault) to embodiments of the present invention 1 is described.
Fig. 8 is the figure that the integral structure of the terminating layer forced reduction apparatus of elevator to embodiments of the present invention 2 is described.
Detailed description of the invention
The present invention will be described with reference to the accompanying drawings.In the drawings and in which, same label represents identical part or considerable part, suitably simplifies or omit the explanation that it repeats.
Embodiment 1
Fig. 1 to Fig. 7 is the accompanying drawing of embodiments of the present invention 1, Fig. 1 is the figure be described the integral structure of the terminating layer forced reduction apparatus of elevator, Fig. 2 is the time diagram be described the operating state of consistency check circuit, Fig. 3 is the diagram of circuit of the process when power connection running control part is shown, Fig. 4 and Fig. 5 is the time diagram be described the operating state of consistency check circuit time sensor abnormality (ON fault), Fig. 6 and Fig. 7 is the time diagram be described the operating state of consistency check circuit time sensor abnormality (OFF fault).
In FIG, label 1 is the hoistway of elevator.Machine room 2 is provided with at the top of this hoistway 1.Further, in the bottom of hoistway 1, excavate downwards further from undermost floor ground and be formed with pit 3.In hoistway 1, be equipped with cage 4 in lifting mode freely, this cage 4 loads occupants etc. and is elevated between multiple floor.In addition, in hoistway 1, be also configured with counterweight 5 in lifting mode freely, this counterweight 5 is for compensating the load acting on this cage 4.
The machine room 2 at the top of hoistway 1 is provided with the towing machine 6 for driving cage 4 and counterweight 5 to be elevated.Further, one end of main rope 7 is linked on the top of cage 4.This main rope 7 extends from the top of cage 4 in hoistway 1 above vertical, and the centre of main rope 7 is wound in the driving rope sheave 6a of towing machine 6.Another side of main rope 7 extends to vertical below from the driving rope sheave 6a of towing machine 6 in hoistway 1, and links with the top of counterweight 5.Like this, cage 4 and counterweight 5 are suspended in hoistway 1 with well-bucket shape by main rope 7.
Velocity limiter 8 is provided with in the machine room 2 at the top of hoistway 1.In addition, tension wheel 9 is provided with in a rotatable manner in the pit 3 near the bottom of hoistway 1.With annular roll speed limiter rope 10 between this velocity limiter 8 and tension wheel 9.This overspeed governor 10 in side engaging in cage 4.Further, when cage 4 is elevated, overspeed governor 10 has enough to meet the need, thus the rope sheave of velocity limiter 8 rotates with the hand of rotation corresponding with the rising or falling speed of cage 4 and rotative speed.The speed detector 11 be made up of rotary encoder etc. of the rotative speed of the rope sheave for detecting this velocity limiter 8 is installed at velocity limiter 8.The rotative speed of the rope sheave of the velocity limiter 8 detected by this speed detector 11 is exported by as speed detection signal 11a.
The lowest end of the lift path of the cage 4 in the bottom of pit 3, is provided with the car buffer 12 for relaxing impact when cage 4 collides.In addition, the lowest end of the lift path of the counterweight 5 in the bottom of pit 3, is provided with the counterweight buffer 13 for relaxing impact when counterweight 5 collides.
Controlled by the various control setups be accommodated in control panel 14 with the action of the overall relevant equipment of the running of elevator.The operation control part 14a being positioned at control panel 14 controls the operation of elevator (cage 4) by the action controlling towing machine 6 or drg 6b.In addition, the supervelocity monitoring unit 14b being positioned at control panel 14 monitors the speed of cage 4 according to the speed detection signal 11a exported from speed detector 11.Further, when judging that the speed of cage 4 is more than predetermined supervelocity detection speed, velocity limiter 8 is made to carry out action.When velocity limiter 8 carries out action, overspeed governor 10 is held, and makes the not shown accident brake being located at cage 4 carry out action thus, thus makes cage 4 emergent stopping.
Desired location near below terminal in hoistway 1 is provided with the 1st lower position detecting sensor (BTA) 15a and the 2nd lower position detecting sensor (BTB) 15b, and whether the 1st lower position detecting sensor (BTA) 15a and the 2nd lower position detecting sensor (BTB) 15b is positioned at predetermined below terminal location for detecting cage 4.These the 1st lower position detecting sensor (BTA) 15a and the 2nd lower position detecting sensor (BTB) 15b are along the lifting direction spread configuration at predetermined spaced intervals of cage 4.Now, the 1st lower position detecting sensor (BTA) 15a is configured to the below end side being positioned at hoistway 1 relative to the 2nd lower position detecting sensor (BTB) 15b.
In addition, desired location above in hoistway 1 near terminal is provided with the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) 16b, and whether the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) 16b is positioned at predetermined top terminal location for detecting cage 4.These the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) 16b are along the lifting direction spread configuration at predetermined spaced intervals of cage 4.Now, the 1st top position detecting sensor (TPA) 16a is configured to the top end side being positioned at hoistway 1 relative to the 2nd top position detecting sensor (TPB) 16b.
At cage 4, the shield 17 opposed with these position-detection sensors is installed.When cage 4 comes predetermined below terminal location, the 1st lower position detecting sensor (BTA) 15a and the 2nd lower position detecting sensor (BTB) both 15b covers by the shield 17 of cage 4.In addition, equally, when cage 4 comes predetermined top terminal location, the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) both 16b covers by the shield 17 of cage 4.
These position-detection sensors are contactless sensor.Further, when at ordinary times, namely when the detecting means of position-detection sensor does not have crested plate 17 to cover, voltage (current potential) is relatively high state.In addition, its detecting means is become the relatively low state of voltage (current potential) by the position-detection sensor that the shield 17 of cage 4 covers.In following content, being the state exporting (having signal) by status and appearance relatively high for this voltage (current potential), is export cut-off state by status and appearance relatively low for voltage (current potential).
Lower position detecting sensor consistency check circuit 18 and top position detecting sensor consistency check circuit 19 is provided with in control panel 14.Lower position detecting sensor consistency check circuit 18 checks for the conformability of the Output rusults to the 1st lower position detecting sensor (BTA) 15a and the 2nd lower position detecting sensor (BTB) 15b.Further, the output from this lower position detecting sensor consistency check circuit 18 is input to supervelocity monitoring unit 14b.In addition, top position detecting sensor consistency check circuit 19 checks for the conformability of the Output rusults to the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) 16b.Further, the output from this top position detecting sensor consistency check circuit 19 is also input to supervelocity monitoring unit 14b.
Supervelocity monitoring unit 14b, according to the output of this lower position detecting sensor consistency check circuit 18 and top position detecting sensor consistency check circuit 19, can identify cage 4 whether than predetermined below terminal location end side or than predetermined top terminal location end side by the top on the lower.And, supervelocity monitoring unit 14b when identify cage 4 than each terminal location by end side, and when judging that the speed of cage 4 is more than predetermined predetermined speed according to speed detection signal 11a, braking instruction is sent to operation control part 14a, stops making cage 4 forcibly or slow down.Receive the operation control part 14a control brake 6b of this braking instruction thus make cage 4 stop or slowing down.
Now, for when than below terminal location on the lower end side make cage 4 slow down forcibly speed and when than top terminal location by the top end side make cage 4 slow down forcibly speed, they can be set as respectively different values.
Lower position detecting sensor consistency check circuit 18 is made up of following part: 3 i.e. the 1st lower side relay (LWA) 20a, the 2nd lower side relay (LWB) 20b and the 3rd lower side relay (LWC) 20c of safety relay; And with the action of the 1st lower side relay (LWA) 20a in linkage the 1st lower side open contact 22a of opening and closing and the 1st lower side normally closed contact 23a, with the action of the 2nd lower side relay (LWB) 20b in linkage the 2nd lower side open contact 22b of opening and closing and the 2nd lower side normally closed contact 23b and with the action of the 3rd lower side relay (LWC) 20c the 3rd lower side open contact 22c of opening and closing and the 3rd lower side normally closed contact 23c in linkage.
The outgoing side of the 1st lower position detecting sensor (BTA) 15a is connected with the 1st lower side relay (LWA) 20a.The 3rd lower side open contact 22c is in series inserted with between the 1st lower position detecting sensor (BTA) 15a and the 1st lower side relay (LWA) 20a.Further, the 1st lower side open contact 22a connects in parallel relative to the 3rd lower side open contact 22c.In addition, the outgoing side of the 2nd lower position detecting sensor (BTB) 15b is connected with the 2nd lower side relay (LWB) 20b.The 3rd lower side open contact 22c is in series inserted with between the 2nd lower position detecting sensor (BTB) 15b and the 2nd lower side relay (LWB) 20b.Further, the 2nd lower side open contact 22b connects in parallel relative to the 3rd lower side open contact 22c.
The outgoing side of the 1st top position detecting sensor (TPA) 16a is connected with the 3rd lower side relay (LWC) 20c of lower position detecting sensor consistency check circuit 18 with the outgoing side of the 2nd top position detecting sensor (TPB) 16b.The 1st lower side normally closed contact 23a and the 2nd lower side normally closed contact 23b is in series inserted with between the 3rd lower side relay (LWC) 20c and the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) 16b.Further, the 3rd lower side open contact 22c connects in parallel relative to the 1st lower side normally closed contact 23a.
In addition, the outgoing side of the 1st top position detecting sensor (TPA) 16a and the outgoing side of the 2nd top position detecting sensor (TPB) 16b are connected in series with the 1st lower side open contact 22a, the 2nd lower side open contact 22b and the 3rd lower side normally closed contact 23c in lower position detecting sensor consistency check circuit 18, and then position-detection sensor consistency check circuit 18 exports to supervelocity monitoring unit 14b from below.
Top position detecting sensor consistency check circuit 19 is made up of following part: 3 i.e. the 1st upper side relay (UPA) 21a, the 2nd upper side relay (UPB) 21b and the 3rd upper side relay (UPC) 21c of safety relay; And with the action of the 1st upper side relay (UPA) 21a in linkage the 1st upper side open contact 24a of opening and closing and the 1st upper side normally closed contact 25a, with the action of the 2nd upper side relay (UPB) 21b in linkage the 2nd upper side open contact 24b of opening and closing and the 2nd upper side normally closed contact 25b and with the action of the 3rd upper side relay (UPC) 21c the 3rd upper side open contact 24c of opening and closing and the 3rd upper side normally closed contact 25c in linkage.
The outgoing side of the 1st top position detecting sensor (TPA) 16a is connected with the 1st upper side relay (UPA) 21a.The 3rd upper side open contact 24c is in series inserted with between the 1st top position detecting sensor (TPA) 16a and the 1st upper side relay (UPA) 21a.Further, the 1st upper side open contact 24a connects in parallel relative to the 3rd upper side open contact 24c.In addition, the outgoing side of the 2nd top position detecting sensor (TPB) 16b is connected with the 2nd upper side relay (UPB) 21b.The 3rd upper side open contact 24c is in series inserted with between the 2nd top position detecting sensor (TPB) 16b and the 2nd upper side relay (UPB) 21b.Further, the 2nd upper side open contact 24b connects in parallel relative to the 3rd upper side open contact 24c.
In addition, the outgoing side of the 1st top position detecting sensor (TPA) 16a is also connected with the 3rd upper side relay (UPC) 21c with the outgoing side of the 2nd top position detecting sensor (TPB) 16b.At the 1st top position detecting sensor (TPA) 16a be in series inserted with the 1st upper side normally closed contact 25a and the 2nd upper side normally closed contact 25b between the 2nd top position detecting sensor (TPB) 16b and the 3rd upper side relay (UPC) 21c.Further, the 3rd upper side open contact 24c connects in parallel relative to the 1st upper side normally closed contact 25a.
And, the outgoing side of the 1st top position detecting sensor (TPA) 16a and the outgoing side of the 2nd top position detecting sensor (TPB) 16b are connected in series with the 1st upper side open contact 24a, the 2nd upper side open contact 24b and the 3rd upper side normally closed contact 25c in position-detection sensor consistency check circuit 19 up, then export from top position detecting sensor consistency check circuit 19 to supervelocity monitoring unit 14b.
The elevator possessing the terminating layer forced reduction apparatus formed as described above, when switching on power, carries out action according to the flow process shown in the Fig. 7 illustrated below.
In fig. 2, show the operating state of lower position detecting sensor consistency check circuit 18 in following situation and top position detecting sensor consistency check circuit 19: under cage 4 is positioned at undermost state by power connection after, first cage 4 is made to travel to the superiors, following traveling to orlop, and then travels to the superiors.
First, under cage 4 is positioned at undermost situation, cage 4 is positioned at than predetermined below terminal location position on the lower.Therefore, all position-detection sensors, i.e. the 1st lower position detecting sensor (BTA) 15a, the 2nd lower position detecting sensor (BTB) 15b, the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) 16b are not covered by the shield 17 of cage 4.Therefore, signal is had from these all position-detection sensors output.
Further, in lower position detecting sensor consistency check circuit 18, in an initial condition, the 1st lower side relay (LWA) 20a and the 2nd lower side relay (LWB) 20b is for being released the state of (not being excited).Like this, 1st top position detecting sensor (TPA) 16a and the 1st lower side normally closed contact 23a between the 2nd top position detecting sensor (TPB) 16b and the 3rd lower side relay (LWC) 20c and the 2nd lower side normally closed contact 23b closes, therefore, the 3rd lower side relay (LWC) 20c becomes the state be excited.
In addition, up in position-detection sensor consistency check circuit 19, in an initial condition, the 1st upper side relay (UPA) 21a and the 2nd upper side relay (UPB) 21b is for being released the state of (not being excited).Like this, 1st top position detecting sensor (TPA) 16a and the 1st upper side normally closed contact 25a between the 2nd top position detecting sensor (TPB) 16b and the 3rd upper side relay (UPC) 21c and the 2nd upper side normally closed contact 25b closes, therefore, the 3rd upper side relay (UPC) 21c becomes the state be excited.
In this condition, 1st lower side open contact 22a and the 2nd lower side open contact 22b disconnects, and the 3rd lower side normally closed contact 23c also disconnects, therefore, position-detection sensor consistency check circuit 18 is cut-off towards the output of supervelocity monitoring unit 14b from below.In addition, the 1st upper side open contact 24a and the 2nd upper side open contact 24b disconnects, and the 3rd upper side normally closed contact 25c also disconnects, and therefore, is also cut off from top position detecting sensor consistency check circuit 19 towards the output of supervelocity monitoring unit 14b.Thus, for the state that any one party in position-detection sensor consistency check circuit 18 from below and top position detecting sensor consistency check circuit 19 does not all export, therefore, in supervelocity monitoring unit 14b, the position probing of cage 4 is indefinite state.
In this condition, if cage 4 rises from orlop and closes on predetermined below terminal location, then first the 1st lower position detecting sensor (BTA) 15a covers by the shield 17 of cage 4, and the output from the 1st lower position detecting sensor (BTA) 15a is cut off.Next, the 2nd lower position detecting sensor (BTB) 15b covers by shield 17, thus becomes the state that the 1st lower position detecting sensor (BTA) 15a and the 2nd lower position detecting sensor (BTB) both 15b crested plate 17 cover.In this condition, cage 4 is positioned at predetermined below terminal location, and the output from the 1st lower position detecting sensor (BTA) 15a and the 2nd lower position detecting sensor (BTB) both 15b is cut off.
Further, if cage 4 continues to rise, first shield 17 no longer covers the 1st lower position detecting sensor (BTA) 15a, thus the output from the 1st lower position detecting sensor (BTA) 15a is recovered.Because the 3rd lower side relay (LWC) 20c is excited, the 3rd lower side open contact 22c closes, and therefore, when the output of the 1st lower position detecting sensor (BTA) 15a recovers, the 1st lower side relay (LWA) 20a is excited.When the 1st lower side relay (LWA) 20a is excited, the 1st lower side open contact 22a in lower position detecting sensor consistency check circuit 18 closes, and the 1st lower side normally closed contact 23a disconnects.Thus the 1st lower side relay (LWA) 20a becomes the state of carrying out oneself and keeping.
Further, even if the 1st lower side normally closed contact 23a disconnects, the 3rd lower side open contact 22c also closes, and therefore, the 3rd lower side relay (LWC) 20c maintains the state of carrying out excitation.In this condition, position-detection sensor consistency check circuit 18 is still cut off towards the output of supervelocity monitoring unit 14b from below.Thus in supervelocity monitoring unit 14b, the position probing of cage 4 maintains indefinite state.
When cage 4 rises further, shield 17 also no longer covers the 2nd lower position detecting sensor (BTB) 15b, and the output from the 2nd lower position detecting sensor (BTB) 15b is also recovered.Because the 3rd lower side relay (LWC) 20c is excited, the 3rd lower side open contact 22c closes, and therefore, when the output from the 2nd lower position detecting sensor (BTB) 15b recovers, the 2nd lower side relay (LWB) 20b is excited.When the 2nd lower side relay (LWB) 20b is excited, the 2nd lower side open contact 22b in lower position detecting sensor consistency check circuit 18 closes, and the 2nd lower side normally closed contact 23b disconnects.Thus the 2nd lower side relay (LWB) 20b also becomes the state of carrying out oneself and keeping.
When the 2nd lower side normally closed contact 23b disconnects, the 3rd lower side relay (LWC) 20c is released.When the 3rd lower side relay (LWC) 20c is released, the 3rd lower side open contact 22c in lower position detecting sensor consistency check circuit 18 disconnects, and the 3rd lower side normally closed contact 23c closes.Thus, because closed and the 3rd lower side normally closed contact 23c of the 1st lower side open contact 22a and the 2nd lower side open contact 22b also closes, therefore, become position-detection sensor consistency check circuit 18 from below and export (voltage the is higher) state having signal to supervelocity monitoring unit 14b.
Like this, if cage 4 from below terminal location rise, then position-detection sensor consistency check circuit 18 output signal from below.Thus supervelocity monitoring unit 14b obtains and exports from the signal of this lower position detecting sensor consistency check circuit 18, thus can identify cage 4 from below terminal location rise and leave.Further, such state is become: there is the output from lower position detecting sensor consistency check circuit 18, on the other hand, not from the output of top position detecting sensor consistency check circuit 19.Supervelocity monitoring unit 14b identifies cage 4 and is positioned at top terminal location according to the situation of this output.
When the cage 4 continuing to rise closes on top terminal location, first the shield 17 of cage 4 covers the 2nd top position detecting sensor (TPB) 16b, then cover the 1st top position detecting sensor (TPA) 16a, thus become the state that the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) both 16b crested plate 17 cover.In this condition, cage 4 is positioned at predetermined top terminal location, and the output from the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) both 16b is cut off.Further, the state from top position detecting sensor consistency check circuit 19 towards the output of supervelocity monitoring unit 14b still for being cut off.
If cage 4 continues to rise further, first, shield 17 no longer covers the 2nd top position detecting sensor (TPB) 16b, thus the output from the 2nd top position detecting sensor (TPB) 16b is recovered.At this, because the 3rd upper side relay (UPC) 21c is excited, the 3rd upper side open contact 24c closes, and therefore, when the output from the 2nd top position detecting sensor (TPB) 16b recovers, the 2nd upper side relay (UPB) 21b is excited.And, when the 2nd upper side relay (UPB) 21b is excited, 2nd upper side open contact 24b closes thus makes the 2nd upper side relay (UPB) 21b carry out oneself and keeps, and the 2nd upper side normally closed contact 25b disconnects thus discharged by the 3rd upper side relay (UPC) 21c.
If cage 4 rises further from this state, then shield 17 also no longer covers the 1st top position detecting sensor (TPA) 16a, and the output from the 1st top position detecting sensor (TPA) 16a is also recovered.Because the 3rd upper side relay (UPC) 21c is released, therefore, even if the output of the 1st top position detecting sensor (TPA) 16a recovers, the 1st upper side relay (UPA) 21a is not also still excited but keeps d/d state.Thus, be still cut off from top position detecting sensor consistency check circuit 19 towards the output of supervelocity monitoring unit 14b.
Like this, when cage 4 rises from predetermined top terminal location and arrives the superiors, next start to decline towards orlop.Further, when cage 4 closes on predetermined top terminal location, first, the shield 17 of cage 4 covers the 1st top position detecting sensor (TPA) 16a, and the output from the 1st top position detecting sensor (TPA) 16a is cut off.Next, shield 17 covers the 2nd top position detecting sensor (TPB) 16b, thus becomes the state that the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) both 16b crested plate 17 cover.In this condition, cage 4 is positioned at predetermined top terminal location, and the output from the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) both 16b is cut off.
Like this, along with the output from the 2nd top position detecting sensor (TPB) 16b is cut off, the 2nd upper side relay (UPB) 21b is released.When the 2nd upper side relay (UPB) 21b is released, the 2nd upper side normally closed contact 25b closes, and therefore the 3rd upper side relay (UPC) 21c is excited.
Further, if cage 4 continues to decline, first shield 17 no longer covers the 1st top position detecting sensor (TPA) 16a, thus the output from the 1st top position detecting sensor (TPA) 16a is recovered.Because the 3rd upper side relay (UPC) 21c is excited, the 3rd upper side open contact 24c closes, and therefore, when the output of the 1st top position detecting sensor (TPA) 16a recovers, the 1st upper side relay (UPA) 21a is excited.When the 1st upper side relay (UPA) 21a is excited, the 1st upper side open contact 24a closes and the 1st upper side normally closed contact 25a disconnects.Thus the 1st upper side relay (UPA) 21a becomes the state of carrying out oneself and keeping.
At this, even if the 1st upper side normally closed contact 25a disconnects, the 3rd upper side open contact 24c also closes, and therefore, the 3rd upper side relay (UPC) 21c maintains the state of carrying out excitation.In this condition, be still cut off from top position detecting sensor consistency check circuit 19 towards the output of supervelocity monitoring unit 14b.Thus, in supervelocity monitoring unit 14b, maintain and identify the state that cage 4 is positioned at top terminal location.
If cage 4 declines further, then shield 17 also no longer covers the 2nd top position detecting sensor (TPB) 16b, and the output from the 2nd top position detecting sensor (TPB) 16b is also recovered.Because the 3rd upper side relay (UPC) 21c is excited, the 3rd upper side open contact 24c closes, and therefore, when the output of the 2nd top position detecting sensor (TPB) 16b recovers, the 2nd upper side relay (UPB) 21b is excited.When the 2nd upper side relay (UPB) 21b is excited, the 2nd upper side open contact 24b closes and the 2nd upper side normally closed contact 25b disconnects.Thus the 2nd upper side relay (UPB) 21b also becomes the state of carrying out oneself and keeping.
When the 2nd upper side normally closed contact 25b disconnects, the 3rd upper side relay (UPC) 21c is released.When the 3rd upper side relay (UPC) 21c is released, the 3rd upper side open contact 24c disconnects and the 3rd upper side normally closed contact 25c closes.Thus, because closed and the 3rd upper side normally closed contact 25c of the 1st upper side open contact 24a and the 2nd upper side open contact 24b also closes, therefore, the state exporting from top position detecting sensor consistency check circuit 19 to supervelocity monitoring unit 14b and have signal is become.
Like this, if cage 4 declines from top terminal location and leaves, then from top position detecting sensor consistency check circuit 19 output signal.Thus supervelocity monitoring unit 14b obtains and exports from the signal of this top position detecting sensor consistency check circuit 19, thus cage 4 can be identified decline from top terminal location and leave.Further, become both position-detection sensor consistency check circuit 18 and top position detecting sensor consistency check circuit 19 from below and all there is the state of output.Supervelocity monitoring unit 14b identify according to the situation of this output cage 4 be positioned at above and below the centre of terminal location.
When having carried out once again closing on predetermined below terminal location from orlop to the cage 4 of the traveling of the superiors, first the shield 17 of cage 4 has covered the 2nd lower position detecting sensor (BTB) 15b.Like this, the output from the 2nd lower position detecting sensor (BTB) 15b is cut off, and so far, the 2nd lower side relay (LWB) 20b receiving excitation is released.When the 2nd lower side relay (LWB) 20b is released, the 2nd lower side open contact 22b disconnects, and therefore, position-detection sensor consistency check circuit 18 is cut off towards the output of supervelocity monitoring unit 14b from below.
Further, when cage 4 arrives predetermined below terminal location and makes the 1st lower position detecting sensor (BTA) 15a also crested plate 17 covers, the output from the 1st lower position detecting sensor (BTA) 15a is also cut off.Like this, the 1st lower side relay (LWA) 20a receiving excitation is released.When the 1st lower side relay (LWA) 20a is released, the 1st lower side normally closed contact 23a closes, and therefore the 3rd lower side relay (LWC) 20c is excited.
When cage 4 declines further and makes the 2nd lower position detecting sensor (BTB) 15b no longer crested plate 17 covers, output from the 2nd lower position detecting sensor (BTB) 15b recovers, thus the 2nd lower side relay (LWB) 20b is excited.When the 2nd lower side relay (LWB) 20b is excited, the 2nd lower side normally closed contact 23b disconnects, and therefore the 3rd lower side relay (LWC) 20c is released.
Further, if cage 4 continue decline and make the 1st lower position detecting sensor (BTA) 15a no longer crested plate 17 cover, then the output from the 1st lower position detecting sensor (BTA) 15a recovers., in this moment, the 3rd lower side relay (LWC) 20c is not excited, and therefore the 3rd lower side open contact 22c disconnects.Thus even if recover from the output of the 1st lower position detecting sensor (BTA) 15a, the 1st lower side relay (LWA) 20a is not also excited.Therefore, position-detection sensor consistency check circuit 18 maintains cut-off state towards the output of supervelocity monitoring unit 14b from below.
Like this, at cage 4 after below terminal location arrives orlop, if cage 4 starts to rise again, then first the 1st lower position detecting sensor (BTA) 15a crested plate 17 covers.And, following 2nd lower position detecting sensor (BTB) 15b also crested plate 17 covers, when the output from the 1st lower position detecting sensor (BTA) 15a and the 2nd lower position detecting sensor (BTB) both 15b is cut off, the 3rd lower side relay (LWC) 20c is excited.
Under the state that the 3rd lower side relay (LWC) 20c is excited, if cage 4 rises, make the 1st lower position detecting sensor (BTA) 15a no longer crested plate 17 cover, thus the output from the 1st lower position detecting sensor (BTA) 15a is recovered, then the 1st lower side relay (LWA) 20a is excited and carries out oneself and keeps.In addition, if cage 4 rise further and make the 2nd lower position detecting sensor (BTB) 15b also no longer crested plate 17 cover, thus the output from the 2nd lower position detecting sensor (BTB) 15b is also recovered, then the 2nd lower side relay (LWB) 20b is also excited and carries out oneself and keeps.
In the stage that the 2nd lower side relay (LWB) 20b is excited, the consistency check of the position-detection sensor from below circuit 18 be cut off is recovered towards the output of supervelocity monitoring unit 14b.Like this, from cage 4 through predetermined below terminal location and arriving orlop to rising and again by during above the terminal location of below, only from top position detecting sensor consistency check circuit 19 output signal, lower position detecting sensor consistency check circuit 18 does not have output signal.Supervelocity monitoring unit 14b identifies cage 4 and is positioned at below terminal location according to the situation of this output.
And, when cage 4 moves to the top of below terminal location, output from lower position detecting sensor consistency check circuit 18 recovers, thus become both position-detection sensor consistency check circuit 18 and top position detecting sensor consistency check circuit 19 from below and all there is the state of output, therefore, supervelocity monitoring unit 14b identify cage 4 be positioned at above and below the centre of terminal location.
Then, when cage 4 rises and arrives top terminal location, output from top position detecting sensor consistency check circuit 19 is cut off, become only from below position-detection sensor consistency check circuit 18 export and have the state of signal, supervelocity monitoring unit 14b to identify cage 4 to be positioned at top terminal location.And, when cage 4 declines and comes the below of top terminal location, output from top position detecting sensor consistency check circuit 19 recovers, therefore, supervelocity monitoring unit 14b identify cage 4 be positioned at above and below the centre of terminal location.
Like this, after power connection, make cage 4 operate once from orlop to the superiors, thus utilize shield 17 to cover once by the 1st lower position detecting sensor (BTA) 15a and the 2nd lower position detecting sensor (BTB) 15b and the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) 16b, thus the operating state of lower position detecting sensor consistency check circuit 18 and top position detecting sensor consistency check circuit 19 is resetted.Further, supervelocity monitoring unit 14b identifies the position of cage 4 based on the output of these consistency check circuit.
Namely, when only from below position-detection sensor consistency check circuit 18 exist export and when there is not the output from top position detecting sensor consistency check circuit 19, supervelocity monitoring unit 14b identify cage 4 be positioned at top terminal location.In addition, on the contrary, when there is not the output from lower position detecting sensor consistency check circuit 18 when only there is output from top position detecting sensor consistency check circuit 19, supervelocity monitoring unit 14b identifies cage 4 and is positioned at below terminal location.Further, when both position-detection sensor consistency check circuit 18 and top position detecting sensor consistency check circuit 19 all exist output from below, supervelocity monitoring unit 14b identifies cage 4 and is positioned at midway location.
And, as described above, until make cage 4 from terminating layer to the running of the terminating layer of opposition side once after power connection, thus till utilizing shield 17 all to be covered by each position-detection sensor, do not identify cage 4 and be positioned at midway location, but identify cage 4 and be positioned at terminal location.Therefore, until cage after power connection 4 between two terminating layers till round trip, run control part 14a to need the maximum speed of cage 4 to be set as the speed (hereinafter referred to as " bumper corresponding speed ") corresponding with energy disperser (bumper), instead of command speed.
The flow process of the process of the operation control part 14a when diagram of circuit of Fig. 3 shows this power connection.
When the power is turned on, first, in step sl, control part 14a is run to whether being registered with car call or landing call confirms.Further, when being registered with car call or landing call, in step s 2 maximum speed being set as bumper corresponding speed, then in step s3, running control part 14a and respond the call of this registration and cage 4 is travelled.
Unregistered when having car call or a landing call in step sl, or after responding call in step s3 and cage 4 being travelled, enter step S4.In this step S4, whether operation control part 14a stops at orlop to cage 4 confirms.Under cage 4 stops at undermost situation, enter step S5, run control part 14a and with bumper corresponding speed, cage 4 is travelled to the superiors.Further, in following step S6, control part 14a is run to whether being registered with car call or landing call confirms.
In this step S6, when unregistered have car call or a landing call time, in the step s 7, run control part 14a and make cage 4 travel to orlop with bumper corresponding speed, then in step s 8 maximum speed is set as command speed, a series of process terminates.On the other hand, in step s 6, when being registered with car call or landing call, in step s 9, run control part 14a respond the call of this registration and cage 4 is travelled.
Further, in following step S10, whether operation control part 14a stops at orlop to cage 4 confirms, under cage 4 stops at undermost situation, enter step S8, maximum speed is set as command speed, a series of process terminates.On the other hand, under cage 4 does not stop at undermost situation, step S6 is returned.
On the other hand, in step s 4 which, under cage 4 does not stop at undermost situation, step S11 is entered.Further, run control part 14a whether to stop at the superiors to cage 4 in step s 11 and confirm, when cage 4 does not stop at the superiors, whether stop at interlayer to cage 4 in step s 12 and confirm.When cage 4 stops at the superiors in step s 11 or when cage 4 stops at interlayer in step s 12, enter step S13.
In step s 13, running control part 14a makes cage 4 travel to orlop with bumper corresponding speed.Further, in following step S14, control part 14a is run to whether being registered with car call or landing call confirms.In this step S14, when unregistered have car call or a landing call time, in step S15, run control part 14a makes cage 4 travel to the superiors with bumper corresponding speed, and then in step s 8 maximum speed is set as command speed, a series of process terminates.
On the other hand, in step S14, when being registered with car call or landing call, running control part 14a in step s 16 and respond the call of this registration and cage 4 is travelled.Further, in following step S17, whether operation control part 14a stops at the superiors to cage 4 confirms, when cage 4 stops at the superiors, enter step S8, maximum speed is set as command speed, a series of process terminates.On the other hand, when cage 4 does not stop at the superiors, step S14 is returned.
As described above, the terminating layer forced reduction apparatus of this embodiment below terminal and above terminal be respectively equipped with two position-detection sensors, the output of these position-detection sensors is inputed to supervelocity monitoring unit 14b by consistency check circuit, identifies whether cage 4 is positioned at predetermined terminal location thus.In the terminating layer forced reduction apparatus formed like this, the action of any one showing from Fig. 4 to Fig. 7 when two position-detection sensors being arranged at same end side produces abnormal, lower position detecting sensor consistency check circuit 18 and top position detecting sensor consistency check circuit 19.
First, figure 4 illustrates following situation: the 1st lower position detecting sensor (BTA) 15a in two lower position detecting sensors there occurs ON fault, i.e. the fault of output signal constantly always.Further, at this, suppose after power connection, to the superiors, there occurs fault from orlop running at cage 4.Thus, until after power connection, cage 4 from orlop running to the superiors, then cage 4 from the superiors drop to predetermined below terminal location nearby till, all identical with Fig. 2, thus the description thereof will be omitted.
When cage 4 closes on predetermined below terminal location, first the shield 17 of cage 4 covers the 2nd lower position detecting sensor (BTB) 15b.Like this, the output from the 2nd lower position detecting sensor (BTB) 15b is cut off, and so far, the 2nd lower side relay (LWB) 20b receiving excitation is released.When the 2nd lower side relay (LWB) 20b is released, the 2nd lower side open contact 22b disconnects, and therefore, position-detection sensor consistency check circuit 18 is cut off towards the output of supervelocity monitoring unit 14b from below.
Next, cage 4 arrives predetermined below terminal location, and the 1st lower position detecting sensor (BTA) 15a also crested plate 17 covers., because the 1st lower position detecting sensor (BTA) 15a there occurs ON fault, the output therefore from the 1st lower position detecting sensor (BTA) 15a is cut off but exists.Therefore, the 1st lower side relay (LWA) 20a maintains the state be excited.Thus the state that the 1st lower side normally closed contact 23a remains open, the 3rd lower side relay (LWC) 20c can not be excited.
If cage 4 decline further thus make the 2nd lower position detecting sensor (BTB) 15b no longer crested plate 17 cover, then the output from the 2nd lower position detecting sensor (BTB) 15b recovers., because the 3rd lower side relay (LWC) 20c is not excited, therefore, the 3rd lower side open contact 22c is disconnected, and the 2nd lower side relay (LWB) 20b is not excited.
Like this, if there is ON fault in the 1st lower position detecting sensor (BTA) 15a, then when the 1st lower position detecting sensor (BTA) 15a and the 2nd lower position detecting sensor (BTB) 15b crested plate 17 cover, 1st lower side relay (LWA) 20a keeps the state be excited, and the 2nd lower side relay (LWB) 20b and the 3rd lower side relay (LWC) 20c is no longer excited.This situation to rise and by being also identical during the terminal location of below from orlop at cage 4.Thus, even if cage 4 rises from orlop and passes through below terminal location, also can not position-detection sensor consistency check circuit 18 output signal from below.
Namely, even if when there is ON fault in the 1st lower position detecting sensor (BTA) 15a, when cage 4 drops to predetermined below terminal location, position-detection sensor consistency check circuit 18 is also cut off towards the output of supervelocity monitoring unit 14b from below.Therefore, supervelocity monitoring unit 14b can identify cage 4 be positioned at below terminal location.But, even if cage 4 rises from orlop and passes through below terminal location, also do not have position-detection sensor consistency check circuit 18 output signal from below, therefore, supervelocity monitoring unit 14b keeps such state: identify cage 4 and be positioned at below terminal location.
This state means that the position of cage 4 is by supervelocity monitoring unit 14b wrong identification., this wrong identification is identified in secure side instead of in hazardous side.That is, the state being set to the bumper corresponding speed slower than command speed due to the maximum speed of elevator continues, therefore, it is possible to guarantee safety.
Fig. 5 the 2nd lower position detecting sensor (BTB) 15b shown in two lower position detecting sensors there occurs the situation of ON fault.At this, identical with the situation of Fig. 4, suppose after power connection, to the superiors, there occurs fault from orlop running at cage 4.Thus, until after power connection, cage 4 from orlop running to the superiors, then cage 4 from the superiors drop to predetermined below terminal location nearby till, all identical with Fig. 2.
In this case, when the 1st lower position detecting sensor (BTA) 15a and the 2nd lower position detecting sensor (BTB) 15b crested plate 17 cover, 2nd lower side relay (LWB) 20b keeps the state be excited, and the 1st lower side relay (LWA) 20a and the 3rd lower side relay (LWC) 20c is no longer excited.Thus, identical with the situation that ON fault occurs the 1st lower position detecting sensor (BTA) 15a above, even if cage 4 rises from orlop and passes through below terminal location, there is no position-detection sensor consistency check circuit 18 output signal from below yet.
Namely, even if when there is ON fault in the 2nd lower position detecting sensor (BTB) 15b, when cage 4 drops to predetermined below terminal location, position-detection sensor consistency check circuit 18 is also cut off towards the output of supervelocity monitoring unit 14b from below.Therefore, supervelocity monitoring unit 14b can identify cage 4 be positioned at below terminal location.And, even if cage 4 rises from orlop and passes through below terminal location, also do not have position-detection sensor consistency check circuit 18 output signal from below, therefore, supervelocity monitoring unit 14b keeps such state: identify cage 4 and be positioned at below terminal location.Thus, due to the position at secure side identification cage 4, therefore, identical with the situation that ON fault occurs the 1st lower position detecting sensor (BTA) 15a above, cage 4 can be identified dropped to predetermined below terminal location while guaranteeing safety.
Figure 6 illustrates following situation: the 1st lower position detecting sensor (BTA) 15a in two lower position detecting sensors there occurs OFF fault, i.e. the fault of no longer output signal.At this, also identical with situation above, suppose after power connection, to the superiors, there occurs fault from orlop running at cage 4.Thus, until after power connection, cage 4 from orlop running to the superiors, then cage 4 from the superiors drop to predetermined below terminal location nearby till, all identical with Fig. 2.
When cage 4 closes on predetermined below terminal location, first the shield 17 of cage 4 covers the 2nd lower position detecting sensor (BTB) 15b.Like this, the output from the 2nd lower position detecting sensor (BTB) 15b is cut off, and so far, the 2nd lower side relay (LWB) 20b receiving excitation is released.When the 2nd lower side relay (LWB) 20b is released, the 2nd lower side open contact 22b disconnects, and therefore, position-detection sensor consistency check circuit 18 is cut off towards the output of supervelocity monitoring unit 14b from below.
Next, when cage 4 arrives predetermined below terminal location and makes the 1st lower position detecting sensor (BTA) 15a also crested plate 17 covers, the output from the 1st lower position detecting sensor (BTA) 15a is also cut off.Like this, the 1st lower side relay (LWA) 20a receiving excitation is released.When the 1st lower side relay (LWA) 20a is released, the 1st lower side normally closed contact 23a closes, and therefore the 3rd lower side relay (LWC) 20c is excited.
Then, when cage 4 declines, the 2nd lower position detecting sensor (BTB) 15b and the 1st lower position detecting sensor (BTA) 15a no longer crested plate 17 covers.Now, output from the 2nd lower position detecting sensor (BTB) 15b recovers, but because the 1st lower position detecting sensor (BTA) 15a there occurs OFF fault, therefore, after this output from the 1st lower position detecting sensor (BTA) 15a can not recover.
Thus if OFF fault occurs the 1st lower position detecting sensor (BTA) 15a, then the 1st lower side relay (LWA) 20a is no longer excited.Thus, the state that the 1st lower side open contact 22a remains open, therefore, even if cage 4 rises from orlop and passes through below terminal location, also position-detection sensor consistency check circuit 18 output signal no longer from below.
Namely, even if when there is OFF fault in the 1st lower position detecting sensor (BTA) 15a, when cage 4 drops to predetermined below terminal location, position-detection sensor consistency check circuit 18 is also cut off towards the output of supervelocity monitoring unit 14b from below.Therefore, supervelocity monitoring unit 14b can identify cage 4 be positioned at below terminal location.And, even if cage 4 rises from orlop and passes through below terminal location, also do not have position-detection sensor consistency check circuit 18 output signal from below, therefore, supervelocity monitoring unit 14b keeps such state: identify cage 4 and be positioned at below terminal location.Thus, due to the position at secure side identification cage 4, therefore, identical with the situation of ON fault above, cage 4 can be identified dropped to predetermined below terminal location while guaranteeing safety.
Further, when the 2nd lower position detecting sensor (BTB) 15b shown in Fig. 7 there occurs OFF fault, although omit detailed description, be identical with situation above.
In addition, above the situation of any one party et out of order in the 1st lower position detecting sensor (BTA) 15a and the 2nd lower position detecting sensor (BTB) 15b is illustrated, but is also identical for the situation of any one party et out of order in the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) 16b.
The terminating layer forced reduction apparatus of the elevator formed as described above is, when cage 4 is positioned at the position within the predetermined distance of terminal apart from hoistway, namely, when cage be positioned at than below terminal location on the lower end side position or than above the position of terminal location end side by the top, when the speed of cage 4 is more than the predetermined speed preset, supervelocity monitoring unit 14b exports the braking instruction for making cage 4 slow down.
Further, for being used as two position-detection sensors (the 1st lower position detecting sensor (BTA) 15a and the 2nd lower position detecting sensor (BTB) 15b or the 1st top position detecting sensor (TPA) 16a and the 2nd top position detecting sensor (TPB) 16b) that the shield 17 of action plate detects in hoistway 1 along the lift path spread configuration of cage 4 to what be located at cage 4.
And, possesses consistency check circuit, it is according to the output of two both position-detection sensors, when both output described is consistent, make the output reversion from self, according to the output from consistency check circuit, supervelocity monitoring unit 14b identifies whether cage 4 is positioned at the position within the predetermined distance of terminal of distance hoistway 1.
At this, the state that the output of two both position-detection sensors is consistent is following such state: such as shown in Figure 2, if be cut off from the output of the side in both, then then also be cut off from the output of the opposing party, if recovered from the output of the side in both, then then also recover from the output of the opposing party.When consistent from both output like this, output from consistency check circuit self is reversed, that is, have when signal this output is cut off when exporting from consistency check circuit, when cut-off from the output of consistency check circuit, output is recovered.
Therefore, just can detect that without the need to using cam whether cage is positioned at terminal location, can make mounting and adjusting simplify, thus can shorten the time required for mounting and adjusting.In addition, now, by using two position-detection sensors and consistency check circuit, higher reliability can be guaranteed when not arranging fault detection capability to position-detection sensor self.In addition, owing to not using cam, can the required expenses such as the manufacture of equipment be suppressed lower.
In addition, when completing output that this content of action plate detected from least one party in two both position-detection sensors and both output described is inconsistent, consistency check circuit carries out such output: this output makes the position within supervelocity monitoring unit 14b identifies distance predetermined described in terminal that cage 4 is positioned at apart from hoistway 1, that is, output is cut off by consistency check circuit.
At this, the state of the output inconsistent (not consistent) of two both position-detection sensors is following such state: such as shown in Figures 4 to 7, although be cut off from the output of the side in both, the output from the opposing party is not cut off; Or contrary, although recover from the output of the side in both, the output from the opposing party does not recover.When occur so not consistent, the output from consistency check circuit is cut off, and supervelocity monitoring unit 14b identifies cage 4 and is positioned at upper and lower terminal location.
Therefore, even if the side in two position-detection sensors occurs abnormal, also can carry out judging thus guaranteeing safety in secure side, identify cage and drop to terminal location simultaneously.
Embodiment 2
Fig. 8 is the figure of embodiments of the present invention 2, and is the figure be described the integral structure of the terminating layer forced reduction apparatus of elevator.
As previously mentioned, in embodiment 1, in order to set the operating state of position-detection sensor consistency check circuit when power connection, need cage is carried out once from terminating layer to the running of the terminating layer of opposition side, thus utilize shield all to be covered once by each position-detection sensor.This because of have a power failure etc. cause power supply to be cut off after restore electricity time be also identical.That is, if because power failure etc. causes power supply to be cut off, then the excitation of the relay of position-detection sensor consistency check circuit is all removed.Further, if do not make cage carry out once from terminating layer to the running of the terminating layer of opposition side, then normally to identify the position of cage when restoring electricity.
Therefore, the embodiment 2 be described at this possesses battery, and described battery is used at the operating state because of the relay before power supply is about to be cut off in detecting sensor consistency check circuit in holding position power failure etc. causes power supply to be cut off.
That is, as shown in Figure 8, battery 26 is connected to lower position detecting sensor consistency check circuit 18 and top position detecting sensor consistency check circuit 19.When causing power supply to be cut off because of power failure etc., from this battery 26 to these position-detection sensor consistency check circuit supply electric power.Further, keep by means of action (excitation) state of the electric power supplied from this battery 26 to each relay of position-detection sensor consistency check circuit.
Further, other structure is identical with embodiment 1 with action, omits its detailed description.
In the terminating layer forced reduction apparatus of the elevator formed as described above, the effect identical with embodiment 1 can be played, on this basis, even if when causing power supply to be cut off because of power failure etc., also can keep the operating state of the relay of position-detection sensor consistency check circuit, thus when restoring electricity without the need to making cage carry out, once from terminating layer to the running of the terminating layer of opposition side, just normally to identify the position of cage.
Utilizability in industry
The present invention can utilize in the terminating layer forced reduction apparatus of elevator with following such supervelocity monitoring unit: if the speed of cage when being positioned at the position within the predetermined distance of terminal apart from hoistway reaches the predetermined speed preset, then described supervelocity monitoring unit exports the braking instruction for making cage slow down.
Label declaration
1: hoistway;
2: machine room;
3: pit;
4: cage;
5: counterweight;
6: towing machine;
6a: drive rope sheave;
6b: drg;
7: main rope;
8: velocity limiter;
9: tension wheel;
10: overspeed governor;
11: speed detector;
11a: speed detection signal;
12: car buffer;
13: counterweight buffer;
14: control panel;
14a: run control part;
14b: supervelocity monitoring unit;
15a: the 1 lower position detecting sensor (BTA);
15b: the 2 lower position detecting sensor (BTB);
16a: the 1 top position detecting sensor (TPA);
16b: the 2 top position detecting sensor (TPB);
17: shield;
18: lower position detecting sensor consistency check circuit;
19: top position detecting sensor consistency check circuit;
20a: the 1 lower side relay (LWA);
20b: the 2 lower side relay (LWB);
20c: the 3 lower side relay (LWC);
21a: the 1 upper side relay (UPA);
21b: the 2 upper side relay (UPB);
21c: the 3 upper side relay (UPC);
22a: the 1 lower side open contact;
22b: the 2 lower side open contact;
22c: the 3 lower side open contact;
23a: the 1 lower side normally closed contact;
23b: the 2 lower side normally closed contact;
23c: the 3 lower side normally closed contact;
24a: the 1 upper side open contact;
24b: the 2 upper side open contact;
24c: the 3 upper side open contact;
25a: the 1 upper side normally closed contact;
25b: the 2 upper side normally closed contact;
25c: the 3 upper side normally closed contact;
26: battery.
Claims (4)
1. a terminating layer forced reduction apparatus for elevator, described elevator has:
Cage, described cage is configured in the hoistway of elevator in lifting mode freely;
Supervelocity monitoring unit, the speed of the described cage when described cage is positioned at the position within the predetermined distance of terminal apart from described hoistway is more than the predetermined speed preset, described supervelocity monitoring unit exports the braking instruction for making described cage slow down;
Action plate, described action plate is arranged at described cage; With
Two position-detection sensors, described two position-detection sensors are arranged in described hoistway, for detecting described action plate along the lift path of described cage;
The feature of the terminating layer forced reduction apparatus of described elevator is,
The terminating layer forced reduction apparatus of described elevator possesses:
Consistency check circuit, according to the output of described two both position-detection sensors, when both output described is consistent, described consistency check circuit makes the output reversion from self,
When completing output that described this content of action plate detected from described at least one party in both and both output described is inconsistent, described consistency check circuit carries out such output: the position within this output distance that described supervelocity monitoring unit is identified is predetermined described in terminal that described cage is positioned at apart from described hoistway
Described supervelocity monitoring unit identifies the position within distance predetermined described in the terminal whether described cage is positioned at apart from described hoistway according to the output from described consistency check circuit.
2. the terminating layer forced reduction apparatus of elevator according to claim 1, is characterized in that,
Described consistency check circuit carries out such output: under this output makes the initial condition when the power connection of elevator, and described supervelocity monitoring unit identifies the position within distance predetermined described in terminal that described cage is positioned at apart from described hoistway.
3. the terminating layer forced reduction apparatus of elevator according to claim 2, is characterized in that,
The terminating layer forced reduction apparatus of described elevator possesses the operation control part of the operation for controlling described cage,
The maximum speed of described cage is set in below described predetermined speed when the power connection of elevator by described operation control part.
4. the terminating layer forced reduction apparatus of elevator according to claim 3, is characterized in that,
Described operation control part makes described cage automatically between upper and lower terminating layer, come and go running after the power connection of elevator, after this maximum speed of described cage is set as command speed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2010/073527 WO2012090264A1 (en) | 2010-12-27 | 2010-12-27 | Termination floor forced deceleration device for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103282298A CN103282298A (en) | 2013-09-04 |
| CN103282298B true CN103282298B (en) | 2015-07-08 |
Family
ID=46382415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080070968.1A Active CN103282298B (en) | 2010-12-27 | 2010-12-27 | Termination floor forced deceleration device for elevator |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2660179B1 (en) |
| JP (1) | JP5541372B2 (en) |
| KR (1) | KR101447399B1 (en) |
| CN (1) | CN103282298B (en) |
| WO (1) | WO2012090264A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112015006721T5 (en) * | 2015-07-22 | 2018-04-12 | Mitsubishi Electric Corporation | LIFT DEVICE |
| JP7292480B1 (en) | 2022-08-04 | 2023-06-16 | 三菱電機ビルソリューションズ株式会社 | elevator safety device |
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- 2010-12-27 KR KR1020137011158A patent/KR101447399B1/en active IP Right Grant
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Also Published As
| Publication number | Publication date |
|---|---|
| JP5541372B2 (en) | 2014-07-09 |
| WO2012090264A1 (en) | 2012-07-05 |
| EP2660179B1 (en) | 2020-12-16 |
| KR20130061758A (en) | 2013-06-11 |
| JPWO2012090264A1 (en) | 2014-06-05 |
| KR101447399B1 (en) | 2014-10-06 |
| EP2660179A1 (en) | 2013-11-06 |
| EP2660179A4 (en) | 2017-11-15 |
| CN103282298A (en) | 2013-09-04 |
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