CN101253117B - Elevator brake system - Google Patents
Elevator brake system Download PDFInfo
- Publication number
- CN101253117B CN101253117B CN200680031767.4A CN200680031767A CN101253117B CN 101253117 B CN101253117 B CN 101253117B CN 200680031767 A CN200680031767 A CN 200680031767A CN 101253117 B CN101253117 B CN 101253117B
- Authority
- CN
- China
- Prior art keywords
- mentioned
- car
- brake
- electromagnet
- brake body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
Abstract
A brake device includes a brake wheel rotated as a cage moves, a plurality of brake bodies which can be brought into contact with the brake wheel, and a plurality of brake body displacement devices for displacing the respective brake bodies separately. The brake device includes an encoder for detecting the movement direction of the cage. The cage includes a weighing machine for detecting the weight of the cage. The brake device includes a calculation unit for calculating the time difference when each of the brake bodies is brought into contact with the brake wheel according to information from the encoder and the weighing machine, and a processing unit for controlling the each brake body displacement device according to the information from the calculation unit. Thus, it is possible to adjust the speed reduction of the cage when the brake device (7) is operated. Accordingly, it is possible to surely reduce the shock to the cage.
Description
Technical field
The present invention relates to for the elevator brake system in elevating road, being braked by the car of lifting and bob-weight.
Background technology
In elevator in the past, proposed to make two brake shoes with ferrodo (brak lining) with the poor brake equipment that contacts with rotating disc of specific time.Thus, when brake equipment has carried out action, must be to prevent for the large situation of the rapid change of the braking force of rotating disc.By the reduction (for example, with reference to patent documentation 1 (Japanese Patent Publication JP 2000-110868 communique)) of seeking like this car is impacted.
But, in the past since time difference of contacting with rotating disc of each brake disc be constant, so as the braking force of brake equipment, can not change for each action.Thereby, for example in the situation that the car of full state rises, if the brake equipment action, then on the basis of the deceleration that causes car because of the passenger weight in the car, the braking force that is produced by brake equipment also offers car, so also large when the deceleration/decel of car just becomes than cage descending.That is, if the weight in the car or operative condition change then that the deceleration/decel of car also will change, might impact because the weight in the car or operative condition give car.
Summary of the invention
The present invention finishes as problem with the problem points that solves as described above, and purpose is to obtain a kind of elevator brake system that can reduce more reliably the impact of car.
The elevator brake system relevant with the present invention possesses: brake equipment, has the movement of following car and the swivel that rotates, can with a plurality of brake bodies of above-mentioned swivel contact separation, and make each above-mentioned brake body to a plurality of brake body displacement devices that individually carry out displacement with the direction of above-mentioned swivel contact separation; The car load detecting device is for detection of the load of above-mentioned car; The car direction detecting device is for detection of the moving direction of above-mentioned car; Delay time, calculating unit based on from above-mentioned car load detecting device and above-mentioned car direction detecting device information separately, calculated the time difference that should arrange when each above-mentioned brake body contacts with above-mentioned swivel; And the braking maneuver function unit, based on the information from above-mentioned delay time of calculating unit, control each above-mentioned brake body displacement device so that each above-mentioned brake body contacted with above-mentioned swivel with the above-mentioned time difference.
According to the elevator brake system relevant with the present invention, because in the delay time calculating unit, based on from the car direction detecting device for detection of the car moving direction, and for detection of the car load detecting device information separately of car load, calculate the time difference that when each brake body contacts with swivel, should arrange, so just can adjust braking force for swivel according to the variation of car moving direction or car load, and can make the braking of the car that the action because of brake equipment produces begin the aviation value of the deceleration/decel till stop near constant.Thus, just can reduce more reliably impact to car.
Description of drawings
Fig. 1 is the pie graph that represents according to the embodiment of the present invention 1 elevator.
Fig. 2 be expression when the 1st brake body of Fig. 1 and the 2nd brake body are contacted with the braking car simultaneously braking force and the chart of the relation of time.
The braking force that Fig. 3 is expression the 1st brake body that makes Fig. 1 when making the 2nd brake body after the braking car contacts and braking car and contact and the chart of the relation of time.
Fig. 4 is illustrated in the elevator of Fig. 1, the full application of brake power the when direction of the direction of out-of-balance force effect and the Braking that utilizes brake equipment is identical and the chart of the relation of time.
Fig. 5 is illustrated in the elevator of Fig. 1, the direction of out-of-balance force effect and the full application of brake power when utilizing the opposite direction of Braking of brake equipment and the chart of the relation of time.
Fig. 6 is the chart of relation of the load of delay time of the 2nd brake body action of the car of presentation graphs 1 when rising and car.
The chart of the relation of the delay time of the 2nd brake body action when Fig. 7 is the cage descending of presentation graphs 1 and the load of car.
Fig. 8 is the chart of relation of the load of the mean deceleration of the car when being illustrated in brake equipment action in the situation that the car of Fig. 1 rises and car.
Fig. 9 is the chart of relation of the load of the mean deceleration of the car when being illustrated in brake equipment action in the situation of cage descending of Fig. 1 and car.
Figure 10 is the pie graph of the handling part of presentation graphs 1.
Figure 11 represents according to the embodiment of the present invention 2 the 2nd action pie graph of feed circuit section.
Figure 12 represents according to the embodiment of the present invention 3 the 2nd action pie graph of feed circuit section.
Figure 13 represents according to the embodiment of the present invention 3 the 2nd action pie graph of other example of feed circuit section.
Figure 14 represents according to the embodiment of the present invention 3 the 2nd action pie graph of other example of feed circuit section.
The specific embodiment
Embodiment 1
Fig. 1 is the pie graph that represents according to the embodiment of the present invention 1 elevator.In the drawings, in elevating road 1, liftably be provided with car 2 and bob-weight 3.Being provided be used to the actuating device that makes car 2 and bob-weight 3 liftings on the top of elevating road 1 is lifting winch 4.The drive pulley 6 that lifting winch 4 has motor 5 and rotates by motor 5.In lifting winch 4, be provided with the brake equipment 7 for the rotation of braking drive pulley 6.
Twining many main ropes 8 in drive pulley 6.Car 2 and bob-weight 3 by each main rope 8 by hanging in elevating road 1.Car 2 and bob-weight 3 carry out lifting by the rotation of drive pulley 6 in elevating road 1.
Brake equipment 7 has: namely brake car 9 with the swivel that drive pulley 6 is rotated integratedly; Can with the 1st brake body 10 and the 2nd brake body 11 (that is, a plurality of brake bodies) of braking car 9 contact separations; Make the 1st brake body 10 and the 2nd brake body 11 to the 1st brake body displacement device 12 and the 2nd brake body displacement device 13 (that is, a plurality of brake body displacement devices) that individually carry out displacement with the direction of braking car 9 contact separations.The maintenance of the braking of the car 2 of brake equipment 7 in order to stop very much or the car 2 when usually stopping and moving.
Braking car 9 is coaxial with drive pulley 6, follows the movement of car 2 and bob-weight 3 and rotates.In addition, the 1st brake body 10 and the 2nd brake body 11 have separately: the brake shoe 14 that will brake the rotation brake of car 9 by contacting with braking car 9; The plunger 15 of the radial outside activity from brake shoe 14 to braking car 9.
The 1st brake body displacement device 12 has: to brake shoe 14 and the energizing spring (afterburning body) 16 of the direction that contacts of braking car 9 to 10 reinforcings of the 1st brake body; The electromagnet 17 that the 1st brake body 10 is left with reinforcing against energizing spring 16 from braking car 9.In addition, the 2nd brake body displacement device 13 has: to brake shoe 14 and the energizing spring (afterburning body) 18 of the direction that contacts of braking car 9 to 11 reinforcings of the 2nd brake body; The electromagnet 19 that the 2nd brake body 11 is left with reinforcing against loading spring 18 from braking car 9.
In lifting winch 4, be provided with the coder (car detecting device) 20 for detection of position, speed and the moving direction of car 2.The corresponding signal of rotation with drive pulley 6 occurs in coder 20.In addition, in car 2, be provided with scale device (car load detecting device) 21 for detection of the loaded weight in the car 2 (load of car 2).
In elevating road 1, be provided with the control setup 22 for the running of control elevator.Control setup 22 is based on the action of controlling brake equipment 7 from coder 20 and scale device 21 information separately.
Here, the method for calculating with regard to the time difference in the operational part 23 describes.If establishing the inertial mass of car 2 is m, the braking force that utilizes brake equipment 7 is F for the out-of-balance force of 3 of F, car 2 and bob-weights (power that produces according to the weight difference between car 2 sides and bob-weight 3 sides)
UB, then the deceleration/decel α of car 2 can represent with formula (1).
α＝(F+F
UB)/m ...(1)
Thereby, at out-of-balance force F
UBAnd in the not free situation about changing of the inertial mass m of car 2, if the aviation value of the braking force that utilizes brake equipment 7 the time till stopping to the rotation of braking car 9 when establishing from the braking beginning is F
Av, mean deceleration α then
AvAvailable formula (2) represents.
α
av＝(F
av+F
UB)/m ...(2)
Thereby, utilize as can be known the aviation value F of the braking force of brake equipment 7 according to formula (2)
AvWith out-of-balance force F
UBThe less then mean deceleration α of total (full application of brake power)
AvMore reduce.
In this example, when the action of brake equipment 7 begins, for braking car 9, after making 10 contacts of the 1st brake body, make 11 contacts of the 2nd brake body, make the 1st brake body 10 and the braking timing that contact of car 9 and make the 2nd brake body 11 and the time difference of braking the timing that car 9 contacts by adjustment, adjust the aviation value F that the braking that utilizes brake equipment 7 begins the braking force till stop
Av
Fig. 2 be expression when the 1st brake body 10 of Fig. 1 and the 2nd brake body 11 are contacted with braking car 9 simultaneously braking force and the chart of the relation of time.As shown in Figure, when the action of brake equipment 7 begins, the 1st brake body 10 and the 2nd brake body 11 simultaneously with situation that braking car 9 contacts under, utilize the aviation value F of the braking force of brake equipment 7
AvMaxim F with the braking force that utilizes brake equipment 7
MaxIdentical.In addition, in Fig. 2, the situation that expression makes the 1st brake body 10 and the 2nd brake body 11 contact with braking car 9 in the moment 0.
The braking force that Fig. 3 is expression the 1st brake body 10 that makes Fig. 1 when making the 2nd brake body 11 after braking car 9 contacts and braking car 9 and contact and the chart of the relation of time.As shown in Figure, make the 1st brake body 10 and the braking timing that contact of car 9 and making in the 2nd brake body 11 situation poor with braking life period between the timing that car 9 contacts, namely exist in the situation of delay time in the action of the 2nd brake body 11 with respect to the i.e. action of the 1st brake body 10, utilize the aviation value F of the braking force of brake equipment 7
AvBilly uses the maxim F of the braking force of brake equipment 7
MaxLittle.In addition, the delay time of the action of the 2nd brake body 11 the larger aviation value F that utilizes the braking force of brake equipment 7
AvJust less, the delay time of the action of the 2nd brake body 11 less aviation value F
AvLarger.In addition, in Fig. 3, expression makes the 1st brake body 10 contact with braking car 9 in the moment 0, the situation that the 2nd brake body 11 is contacted with braking car 9 at moment t (t＞0).
In addition, at out-of-balance force F
UBAct in the situation that direction (weight of car 2 sides is greater than the weight of bob-weight 3 sides) that car 2 descends and car 2 rise, and out-of-balance force F
UBAct in the situation that direction (weight of car 2 sides is less than the weight of bob-weight 3 sides) that car 2 rises and car 2 rise, the direction of out-of-balance force F effect is identical with the direction of the Braking that utilizes brake equipment 7, the aviation value F that is set as at the braking force that utilizes brake equipment 7 for the full application of brake power of car 2
AvUpper addition out-of-balance force F
UBAfter value.
Otherwise, out-of-balance force F
UBAct in the situation that direction that car 2 descends and car 2 descend, and out-of-balance force F
UBAct in the situation that direction that car 2 rises and car 2 rise out-of-balance force F
UBThe direction of effect and utilize the opposite direction of the Braking of brake equipment 7 is set as from the aviation value F of the braking force that utilizes brake equipment 7 for the full application of brake power of car 2
AvIn deduct out-of-balance force F
UBAfter value.
Fig. 4 is illustrated in the elevator of Fig. 1 out-of-balance force F
UBFull application of brake power when the direction of effect and the direction of the Braking that utilizes brake equipment 7 are identical and the chart of the relation of time.The aviation value F that the aviation value of as shown in Figure, full application of brake power is set as at the braking force that utilizes brake equipment 7
AvUpper addition out-of-balance force F
UBAfter value.Thereby, because that the value of full application of brake power is easy to become is large, so in order to adjust full application of brake power, make the timing that the 1st brake body 10 contact with braking car 9 and make the 2nd brake body 11 and the time difference of braking the timing that car 9 contacts that the large trend of change just be arranged.
Fig. 5 is illustrated in the elevator of Fig. 1 out-of-balance force F
UBThe direction of effect and the full application of brake power when utilizing the opposite direction of Braking of brake equipment 7 and the chart of the relation of time.The aviation value of as shown in Figure, full application of brake power is set as the aviation value F from the braking force that utilizes brake equipment 7
AvIn deduct out-of-balance force F
UBAfter value.Thereby, because the value of full application of brake power is easy to diminish, so in order to adjust full application of brake power, make the timing that the 1st brake body 10 contacts with braking car 9 and make the 2nd brake body 11 and the time difference of braking the timing that car 9 contacts that the trend that diminishes just be arranged.In addition, in Fig. 5, the full application of brake power when expression makes the 1st brake body 10 and the 2nd brake body 11 contact simultaneously with braking car 9 and the relation of time.
Fig. 6 is the chart of relation of the load of delay time of 2nd brake body 11 actions of the car 2 of presentation graphs 1 when rising and car 2.As shown in Figure, in the situation that car 2 risings, because the Braking that utilizes brake equipment 7 so the load of car 2 becomes larger, just need to make full application of brake power less in the descent direction of car 2.That is, in the case, be maintained at specified value in order to make the full application of brake power for car 2, the load of car 2 becomes larger, just need to make become larger the delay time of the action of the 2nd brake body 11 that moves with respect to the 1st brake body 10.Thereby it is desirable to the delay time of the 2nd brake body 11 actions and the pass of car 2 load is the dotted line T of Fig. 6
UP
Fig. 7 is the chart of relation of the load of delay time of 2nd brake body 11 actions of the car 2 of presentation graphs 1 when descending and car 2.As shown in Figure, in the situation that car 2 declines, because the Braking that utilizes brake equipment 7 so the load of car 2 becomes less, just need to make full application of brake power less in the ascent direction of car 2.That is, in the case, be maintained at specified value in order to make the full application of brake power for car 2, the load of car 2 becomes larger, just need to make become less the delay time of the action of the 2nd brake body 11 that moves with respect to the 1st brake body 10.Thereby it is desirable to the delay time of the 2nd brake body 11 actions and the pass of car 2 load is the dotted line T of Fig. 7
DOWN
That is, when operational part 23 rose at car 2, the load of car 2 did not have to be in delay time, the load of car 2 scope of P1～P2 (during P2＞P1) with the dotted line T at load p 1 place when being in the scope of 0～P1
UPOn value t1 (t1＞0) as delay time, the dotted line T at load p 2 places when the load of car 2 is in the above scope of P2
UPOn value t2 (t2＞t1) as delay time (Fig. 6).And then, operational part 23, when car 2 descends, the dotted line T at load p 1 place when the load of car 2 is in the scope of 0～P1
DOWNOn value t1 ' as delay time, the dotted line T at load p 2 places when the load of car 2 is in the scope of P1～P2
DOWNOn value t2 ' (t2 '＜t1 ') as delay time, the load of car 2 does not have delay time (Fig. 7) when being in the above scope of P2.
Fig. 8 is the mean deceleration α of the car 2 when being illustrated in brake equipment 7 action in the situation that the car 2 of Fig. 1 rises
AvChart with the relation of the load of car 2.In addition, Fig. 9 is the mean deceleration α of the car 2 when being illustrated in brake equipment 7 action in the situation that the car 2 of Fig. 1 descends
AvChart with the relation of the load of car 2.As shown in Figure, by respectively according to the load of moving direction and the car 2 of car 2, to adjusting the delay time of the 2nd brake body 11 actions, just can be in being not less than the scope of specified value with the mean deceleration α of car 2
AvReduce.Mean deceleration α
AvEven if be set as in the situation that car 2 descends by undermost situation or rises by the superiors, can prevent that also car 2 from bumping against the size of the terminal part of elevating road.
In addition, the mean deceleration α of Fig. 8
AvWith the pass of the load of car 2 be chart corresponding to the relation of the load of delay time of the 2nd brake body 11 actions of Fig. 6 and car 2.In addition, the mean deceleration α of Fig. 9
AvWith the pass of the load of car 2 be chart corresponding to the relation of the load of delay time of the 2nd brake body 11 actions of Fig. 7 and car 2.
Figure 10 is the pie graph of the handling part 24 of presentation graphs 1.In the drawings, handling part 24 has: for individually carrying out to a plurality of (being two in this example) feed circuit sections (power feeding section part) 25 of each electromagnet 17,19 energisings; With will be used to stopping to the actuating signal of electromagnet energising to output to the action command section (instruction unit) 26 of each feed circuit section based on the time difference from the information of operational part 23.In addition, in Figure 10, only represent to be used among each feed circuit section 25 to carry out the feed circuit section 25 to electromagnet 19 energisings.In addition, be used for carrying out to the formation of the feed circuit section 25 of the electromagnet 17 energisings also formation with feed circuit section 25 shown in Figure 10 identical.
Each feed circuit section 25 has for to the power supply of electromagnet 19 supply capabilities (be direct supply at this example) 27; With energising switch (SW) 28 from power supply 27 to electromagnet that carry out or stop 19 power supplies from.Energising is made as the ON state with switch 28 when car 2 is moved, to carry out from power supply 27 to electromagnet 19 electric power supply.In addition, when energising receives actuating signal from action command section 26 with switch 28 in feed circuit section 25, carry out the OFF action, to stop from power supply 27 to electromagnet 19 electric power supply.
In addition, action command section 26 carrying exported initial actuating signal after, be used for making the time meter of the output delay of next actuating signal.In addition, in each feed circuit section 25, be provided with for the resistance that the current value that flows through electromagnet 17,19 is adjusted (R) 29; With the diode 30 that is used for preventing electric current backflow.
Then, just action describes.Such as working as according to the information from coder 20 grades, detect the speed of car 2 more than or equal to after setting supervelocity, by the control of control setup 22, in operational part 23, calculate delay time, and the information from operational part 23 to action command section 26 output delay times.Can also adopt precalculated value before car closes behind the door elevator walking beginning here the delay time that calculates.
Afterwards, after the action command section information of 26 receive delay times, actuating signal just outputs to the 1st action feed circuit section 25 from action instruction department 26.At this moment, the time meter work of action command section 26, the instrumentation of the delay time that beginning calculates in operational part 23.
After the 1st action received actuating signals with feed circuit section 25, the 1st action was carried out OFF with the energising of feed circuit section 25 with switch 28 and is moved, and was stopped to the energising of electromagnet 17.Thus, the 1st brake body 10 contacts with braking car 9, at braking car 9 weak braking force occurs.
Afterwards, when the instrumentation by time meter from initial actuating signal output beginning, after the delay time that calculates through operational part 23, actuating signal is output to the 2nd action feed circuit section 25 from action instruction department 26.
After the 2nd action received actuating signals with feed circuit section 25, the 2nd action was carried out OFF with the energising of feed circuit section 25 with switch 28 and is moved, and was stopped to the energising of electromagnet 19.Thus, the 2nd brake body 11 contacts with braking car 9, and the braking force that occurs at braking car 9 increases.Afterwards, the rotation of braking car 9 is stopped, and the movement of car 2 is stopped.
In addition, when usually the stopping of car 2, after the movement of car 2 had just stopped, actuating signal was output to each feed circuit section 25 from action instruction department 26 simultaneously, is stopped simultaneously to electromagnet 17,19 power supply separately.
According to this elevator brake system, because in operational part 23, based on from for detection of the coder 20 of the moving direction of car 2 and for detection of scale device 21 information separately of the load of car 2, time difference when calculating the 1st brake body 10 and the 2nd brake body 11 and contacting with braking car 9, so can be according to the load change of moving direction or the car 2 of car 2, adjust the braking force for braking car 9, and the deceleration/decel that can make the car 2 that the action because of brake equipment 7 produces is near constant.Thus, just can reduce more reliably impact to car 2.
In addition, because action command section 26 outputs to each feed circuit section 25 with the time difference (delay time) that operational part 23 is calculated with actuating signal, so need to subtend electromagnet 17 be set in feed circuit section 25, the 19 poor functions of timing additional period of stopping power supply can be simplified the formation of each feed circuit section 25.
In addition, although in above-mentioned example, based on the load of finding the solution car 2 from the information of scale device 21, also can find the solution out-of-balance force F based on the driving current value of the motor 5 that is supplied to lifting winch 4
UB
Embodiment 2
Figure 11 represents according to the embodiment of the present invention 2 the 2nd action pie graph of feed circuit section.In the drawings, the 2nd action has with feed circuit section 41: power supply (being direct supply in this example) 27; The electrical storage device that is used for supplying to from the electric power of power supply 27 savings electromagnet 19 is cond (C) 42; Carry out or stop from power supply 27 to cond 42 and the 1st switch (SW1) 43 of electromagnet 19 power supplies; And carry out or stop the 2nd switch (SW2) 44 from power supply 27 and from cond 42 to electromagnet 19 power supplies.
In addition, in the 2nd moves with feed circuit section 41, be provided with for the resistance 29 that the current value that flows through electromagnet 19 is adjusted; With the diode 30,45 that is used for preventing electric current backflow.In addition, other formation is identical with embodiment 1.
Then, just action describes.After the action command section information of 26 receive delay times, actuating signal is output to the 1st action feed circuit section 25 from action instruction department 26, and actuating signal also is output to the switch 43 that feed circuit section 41 is used in the 2nd action.Thereby at first same with embodiment 1 when brake equipment 7 action, the 1st brake body 10 contacts with braking car 9, at braking car 9 weak braking force occurs.Afterwards, after the delay time that calculates through operational part 23, then actuating signal is output to the switch 44 that feed circuit section 41 is used in the 2nd action from action instruction department 26.
After the 2nd action received actuating signals with the switch 44 of feed circuit section 41, switch 44 carried out the OFF action, was stopped to the energising of electromagnet 19.Thus, the 2nd brake body 11 contacts with braking car 9, and the braking force that occurs at braking car 9 increases.Afterwards, the rotation of braking car 9 is stopped, and the movement of car 2 is stopped.
According to this elevator brake system, because the 2nd action has for will supplying to the cond 42 of electromagnet 19 from the electric power of power supply 27 savings with feed circuit section 41, so can not have to have the braking maneuver of delay time from the power supply supply of power supply 27.In addition, when switch 44 receives actuating signal, stop from power supply 27 to cond 42 and the electric power of electromagnet 19 supply with, even if so in the situation that switch 44 has occured to move bad, also can consume by the electric power discharge of will save in the cond 42, and after the certain hour power supply, carry out more reliably stopping to the power supply of electromagnet 19.That is, can give be used to recovery safety (safing) function that begins to brake car 9 brakings with feed circuit section 41 the 2nd action.In addition, as long as the 2nd switch 44 normally moves, can occur hardly to the charging of cond 42 or from the discharge of cond 42, so can also seek the long lifetime of cond 42.
In addition, although in above-mentioned example, used cond 42 as electrical storage device, can also be with storage battery as electrical storage device.
Figure 12 represents according to the embodiment of the present invention 3 the 2nd action pie graph of feed circuit section.In the drawings, the 2nd action has with feed circuit section 51: power supply (being direct supply in this example) 27; Be used for to supply to the 1st cond (C1) 52 and the 2nd cond (C2) 53 of electromagnet 19 from the electric power of power supply 27 savings; Carry out or stop from power supply 27 to the 1st cond 52, the 1st switch (SW1) 54 of the 2nd cond 53 and electromagnet 19 power supplies; Carry out or stop the 2nd switch (SW2) 55 from power supply 27 and the 1st cond 52 to the 2nd cond 53 and electromagnet 19 power supplies; Carry out or stop the 3rd switch 56 (SW3) of 19 power supplies from power supply 27, the 1st cond 52 and the 2nd cond 53 to electromagnet.
In this example, the 1st cond 52 and the 2nd cond 53 electrostatic capacity separately are mutually the same.Among the delay time (also comprising the stage that does not have delay time) that adds up to 3 stages that operational part 23 calculates of the electric power amount that the 1st cond 52 and the 2nd cond 53 are saved separately, can be to the electric power amount that delay time (time difference) discharge of electromagnet 19 with maximum.In addition, the electric power amount of the 2nd cond 53 savings is among the delay time (also comprising the stage that does not have delay time) in 3 stages of calculating of operational part 23, can be to electromagnet 19 with the 2nd electric power amount that large delay time, (time difference) discharged.
If the 2nd action receives actuating signal with feed circuit section 51, just make among the 1st～the 3rd switch 54～56, carry out the OFF action by action command section 26 selected switches.Thus, after the 2nd action receives actuating signals with feed circuit section 51, being kept to the power supply of electromagnet 19 for 26 selected delay times by action command section, with its correspondingly, the 2nd brake body 11 is to the contact constant time lag of braking car 9.Other formation is identical with embodiment 1.
According to this elevator brake system, because having with feed circuit section 51, the 2nd action receives after the actuating signal to keep delay time to the 1st cond 52 and the 2nd cond 53 of the electric power supply usefulness of electromagnet 19, so just need to not carry time meter in action command section 26, can simplify the formation of action command section 26.In addition, same with embodiment 2, can also give be used to the recovery security function that begins to brake car 9 brakings with feed circuit section 51 the 2nd action.
In addition, the 1st cond 52 and the 2nd cond 53 and output action signal are selected by action command section 26, when the 2nd action receives actuating signal with feed circuit section 51,19 supply capabilities from selected cond to electromagnet only, so can adjust be used to keeping to the time of electromagnet 19 power supplies by the selection of cond, can set the delay time in a plurality of stages.
In addition, although in above-mentioned example, if the resistance that is used for the current value that flows through electromagnet 19 is adjusted is the certain resistance of resistance value 29, but also can be as shown in Figure 13, employing can be according to the variable resistance (VR) 57 that makes resistance change from the resistance value instruction of action command section 26.If process like this time constant variation that just can make to the curent change of electromagnet 19, can further critically carry out the adjustment of delay time.
In addition, although in above-mentioned example, the 1st cond 52 and 53 two conies of the 2nd cond are made as electrical storage device, also can be with the cond more than three as electrical storage device.For example, can also be as shown in Figure 14, append 3rd cond (C3) 58 in parallel with the 1st cond 52 and the 2nd cond 53.In the case, the 4th switches (SW4) 59 that will carry out or stop from power supply 27 and the 1st～the 3rd cond 52,53,58 to electromagnet 19 power supplies are arranged on the 2nd action with in the feed circuit section 51.In addition, select some output in the 1st～the 4th switch 54,55,56,59 from the actuating signal of action command section 26.If process like this, just can set the delay time in further many stages.
Claims (5)
1. elevator brake system is characterized in that possessing:
Brake equipment has the movement of following car and the swivel that rotates, can with a plurality of brake bodies of above-mentioned swivel contact separation, and make each above-mentioned brake body to a plurality of brake body displacement devices that individually carry out displacement with the direction of above-mentioned swivel contact separation;
The car load detecting device is for detection of the load of above-mentioned car;
The car direction detecting device is for detection of the moving direction of above-mentioned car;
Delay time, calculating unit based on from above-mentioned car load detecting device and above-mentioned car direction detecting device information separately, calculated the time difference that should arrange when each above-mentioned brake body contacts with above-mentioned swivel; And
The braking maneuver function unit based on the information from above-mentioned delay time of calculating unit, is controlled each above-mentioned brake body displacement device so that each above-mentioned brake body contacted with above-mentioned swivel with the above-mentioned time difference.
2. according to elevator brake system claimed in claim 1, it is characterized in that:
Each above-mentioned brake body displacement device has: to the afterburning body of the direction that contacts with above-mentioned swivel to above-mentioned brake body reinforcing; With the electromagnet that in the reinforcing of above-mentioned afterburning body above-mentioned brake body is left from above-mentioned swivel by the energising contrary,
Above-mentioned braking maneuver function unit has: for individually carrying out to a plurality of power feeding section parts of each above-mentioned electromagnet energising; Will be used to the instruction unit that stops to output to the above-mentioned time difference to the actuating signal of above-mentioned electromagnet energising mutually different above-mentioned power feeding section parts,
Each above-mentioned power feeding section part stops to supply with to the electric power of above-mentioned electromagnet when receiving above-mentioned actuating signal.
3. according to elevator brake system claimed in claim 2, it is characterized in that:
Some at least in each above-mentioned power feeding section part has for will supplying to from the electric power of power supply savings the electrical storage device of above-mentioned electromagnet, and when receiving above-mentioned actuating signal, the electric power that stops from above-mentioned power supply to above-mentioned electrical storage device is supplied with.
4. according to elevator brake system claimed in claim 1, it is characterized in that:
Each above-mentioned brake body displacement device has: to the afterburning body of the direction that contacts with above-mentioned swivel to above-mentioned brake body reinforcing; With the electromagnet that in the reinforcing of above-mentioned afterburning body above-mentioned brake body is left from above-mentioned swivel by the energising contrary,
Above-mentioned braking maneuver function unit has: for individually carrying out to a plurality of power feeding section parts of each above-mentioned electromagnet energising; Will be used to the instruction unit that stops to output to the actuating signal of above-mentioned electromagnet energising each above-mentioned power feeding section part,
Some at least in each above-mentioned power feeding section part has receiving above-mentioned actuating signal and rises, and is used for only keeping the electrical storage device of supplying with to the electric power of above-mentioned electromagnet in the above-mentioned time difference.
5. according to elevator brake system claimed in claim 4, it is characterized in that:
Above-mentioned power feeding section part has a plurality of above-mentioned electrical storage devices,
Above-mentioned instruction unit is selected some at least among each above-mentioned electrical storage device and is exported above-mentioned actuating signal,
Above-mentioned power feeding section part is when receiving above-mentioned actuating signal, and only the electric power of the selected above-mentioned electrical storage device of in the future free above-mentioned instruction unit is supplied with to above-mentioned electromagnet.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005249552 | 2005-08-30 | ||
| JP249552/2005 | 2005-08-30 | ||
| PCT/JP2006/314890 WO2007026487A1 (en) | 2005-08-30 | 2006-07-27 | Elevator brake system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101253117A CN101253117A (en) | 2008-08-27 |
| CN101253117B true CN101253117B (en) | 2013-04-24 |
Family
ID=37808590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200680031767.4A Expired - Fee Related CN101253117B (en) | 2005-08-30 | 2006-07-27 | Elevator brake system |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4810537B2 (en) |
| CN (1) | CN101253117B (en) |
| WO (1) | WO2007026487A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5607126B2 (en) * | 2012-10-16 | 2014-10-15 | 株式会社Ｙｕｔａｋａ | Elevator monitoring device |
| CN108181519B (en) * | 2017-11-23 | 2020-09-18 | 廊坊凯博建设机械科技有限公司 | Method for dynamically testing band-type brake of elevator traction machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2153465A (en) * | 1984-01-11 | 1985-08-21 | Hitachi Ltd | Emergency stop control apparatus for elevator |
| CN1298834A (en) * | 1999-12-03 | 2001-06-13 | 三菱电机株式会社 | Elevator control device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH033874A (en) * | 1989-05-29 | 1991-01-09 | Mitsubishi Electric Corp | Brake device for elevator |
| JPH03249075A (en) * | 1990-02-27 | 1991-11-07 | Hitachi Ltd | Method and device for elevator stoppage control |
| JP4403614B2 (en) * | 1999-11-19 | 2010-01-27 | 三菱電機株式会社 | Elevator braking device |
| JP2003292257A (en) * | 2002-04-04 | 2003-10-15 | Mitsubishi Electric Corp | Elevator brake driving device |
-
2006
- 2006-07-27 CN CN200680031767.4A patent/CN101253117B/en not_active Expired - Fee Related
- 2006-07-27 WO PCT/JP2006/314890 patent/WO2007026487A1/en active Application Filing
- 2006-07-27 JP JP2007533138A patent/JP4810537B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2153465A (en) * | 1984-01-11 | 1985-08-21 | Hitachi Ltd | Emergency stop control apparatus for elevator |
| CN1298834A (en) * | 1999-12-03 | 2001-06-13 | 三菱电机株式会社 | Elevator control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2007026487A1 (en) | 2009-03-05 |
| CN101253117A (en) | 2008-08-27 |
| WO2007026487A1 (en) | 2007-03-08 |
| JP4810537B2 (en) | 2011-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101098823B (en) | Method for performing an elevator rescue run and the elevator | |
| CN101636340B (en) | Brake device for elevator | |
| CN101124141B (en) | Elevator including elevator rescue system and rescuing method | |
| CN101282899B (en) | Elevator apparatus | |
| EP1953107B1 (en) | Brake system for elevator | |
| CN1741949B (en) | Elevator system | |
| EP2141109A1 (en) | Elevator device | |
| CN101163634A (en) | Elevator apparatus | |
| CN101098822B (en) | Elevator apparatus | |
| US11286132B2 (en) | Enhancing the transport capacity of an elevator system | |
| JP5079288B2 (en) | Elevator equipment | |
| US4308936A (en) | Elevator system | |
| CN101253117B (en) | Elevator brake system | |
| EP3210923B1 (en) | Advanced smooth rescue operation | |
| WO2008068839A1 (en) | Elevator apparatus | |
| CN104671022A (en) | Elevator control device and elevator control method | |
| CN102015508B (en) | Elevator device | |
| CN101798035B (en) | Lift device | |
| EP3753891A1 (en) | Emergency braking apparatus | |
| CN101844718B (en) | Elevator device | |
| JPH03249076A (en) | Start-up compensation device for elevator | |
| CN111170102B (en) | Method and device for monitoring an elevator system | |
| CA2168167A1 (en) | Emergency braking of mine hoist |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |