CN101151202B - Elevator device - Google Patents
Elevator device Download PDFInfo
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- CN101151202B CN101151202B CN2006800098893A CN200680009889A CN101151202B CN 101151202 B CN101151202 B CN 101151202B CN 2006800098893 A CN2006800098893 A CN 2006800098893A CN 200680009889 A CN200680009889 A CN 200680009889A CN 101151202 B CN101151202 B CN 101151202B
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- car
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- speed
- brake equipment
- detection level
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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
-
- 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
- B66B1/285—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical with the use of a speed pattern generator
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The present invention provides an elevator device in which a car damper is installed at the inside bottom part of a hoistway. A brake device for a hoist for braking the movement of a car is installed on the hoist. When the speed of the car is abnormal, a safety device controls the operation of the brake device for the hoist so that the speed of the car can be reduced to the allowable impact speed of the damper or less before the car reaches the position of the damper. When the speed of the car exceeds an overspeed detection level, the safety device starts to operate the brake device for the hoist. The value of the overspeed detection level in a predetermined district starting at the position of the damper is set according to the position of the car so that the speed of the car can be reduced to the value of the allowable impact speed at the position of the damper by braking applied by the brake device for the hoist to the car at any positions during the specified interval.
Description
Technical field
The present invention relates to bottom in hoistway and be provided with the lift appliance that is used to relax to the energy disperser of the impact of car.
Background technology
In the past, following lift appliance had been proposed: surpassed the drg work of the 1st winch when overrunning detection level in the speed of car, surpassed the 2nd in the speed of car and made emergency braking device work when overrunning detection level.In such lift appliance in the past,, be set at along with reduce the 1st and the 2nd value of overrunning detection level continuously near the end of hoistway in order to reduce the length of hoistway height direction.The moving velocity pattern of travelling during in addition, with the elevator normal operation is that benchmark generates the 1st and the 2nd detection level (for example with reference to patent documentation 1) of overrunning.
Patent documentation 1: TOHKEMY 2000-110868 communique
But, in the past owing to be that benchmark generates the 1st and the 2nd detection level of overrunning with the moving velocity pattern of car, car position when the car speed when therefore, colliding the energy disperser that is arranged at hoistway bottom is worked with emergency braking device according to the drg of winch and different.Therefore, the collision permissible speed of energy disperser must be set at the maxim of car speed when colliding energy disperser, cause energy disperser to maximize.Thus, can't realize the miniaturization of hoistway.
Summary of the invention
The present invention will solve problem as described above as problem, and its purpose is, a kind of lift appliance that can seek miniaturization is provided.
The invention provides a kind of lift appliance, it has: car, and it is lifting in hoistway; The energy disperser of car, it is arranged on the bottom in the hoistway; Brake equipment, it is used for the mobile of car braked; And safety device, it makes brake equipment work when the velocity anomaly of car, arrive at car before the position of energy disperser, the speed of car is in below the collision permissible speed of energy disperser, wherein, the detection level of overrunning is set to safety device in advance in position according to car, surpassed when overrunning detection level in the speed of car, safety device begins the work of brake equipment, the value of the detection level of overrunning from the regulation interval of the position of energy disperser is set to, by above-mentioned brake equipment above-mentioned car is braked on the position arbitrarily in the afore mentioned rules interval, the speed when above-mentioned car arrives the position of above-mentioned energy disperser all becomes above-mentioned collision permissible speed.
Description of drawings
Fig. 1 is the constructional drawing of the lift appliance of expression embodiments of the present invention 1.
Fig. 2 is that the safety device of presentation graphs 1 detects after the 1st of car overruns, and is applied to the brake torque on the drive pulley and the diagram of curves of time relation.
Fig. 3 is the car speed obtained according to brake torque and the time relation of Fig. 2 of expression and the diagram of curves of time relation.
Fig. 4 represents brake torque and time relation, the brake torque of approximate usefulness and the diagram of curves of time relation simultaneously.
Fig. 5 is expression according to the brake torque of the approximate usefulness of Fig. 4 and the car speed that time relation is obtained and the diagram of curves of time relation.
Fig. 6 is expression according to the brake torque of the approximate usefulness of Fig. 4 and the car acceleration/accel that time relation is obtained and the diagram of curves of time relation.
Fig. 7 the 1st diagram of curves of relation of overrunning detection level and car position that to be expression obtain according to the brake torque of the approximate usefulness of Fig. 4 and time relation.
Fig. 8 is the constructional drawing of the lift appliance of expression embodiments of the present invention 2.
Fig. 9 is that the safety device of presentation graphs 8 detects after the 2nd of car overruns, and is applied to the braking force on the car and the diagram of curves of time relation.
Figure 10 is the car speed obtained according to braking force and the time relation of Fig. 9 of expression and the diagram of curves of time relation.
Figure 11 is braking force and time relation, the braking force of approximate usefulness and the diagram of curves of time relation of presentation graphs 9 simultaneously.
Figure 12 is expression according to the braking force of the approximate usefulness of Figure 11 and the car speed that time relation is obtained and the diagram of curves of time relation.
Figure 13 is expression according to the braking force of the approximate usefulness of Figure 11 and the car acceleration/accel that time relation is obtained and the diagram of curves of time relation.
Figure 14 the 2nd diagram of curves of relation of overrunning detection level and car position that to be expression obtain according to the braking force of the approximate usefulness of Figure 11 and time relation.
The specific embodiment
Below, with reference to description of drawings preferred implementation of the present invention.
Embodiment 1
Fig. 1 is the constructional drawing of the lift appliance of expression embodiments of the present invention 1.In Fig. 1, in hoistway 1, be provided with a pair of car guide rail 3 of guiding car 2 and a pair of weight guide 5 of guiding counterweight 4.Be provided with on the top of hoistway 1 and be used to the making winch (actuating device) 6 of car 2 and counterweight 4 lifting in hoistway 1 and be configured near the winch 6 deflection pulley 7.
Winch 6 has winch main body 8 that comprises electrical motor and the drive pulley 9 of rotating by winch main body 8.Winch main body 8 is provided with and is used for winch that the rotation of drive pulley 9 is braked with brake equipment (brake equipment) 10.
On drive pulley 9 and deflection pulley 7, be wound with many main ropes 11.Car 2 and counterweight 4 are suspended in the hoistway 1 by each main rope 11.Car 2 and counterweight 4 are by the lifting in the hoistway 1 that is rotated in of drive pulley 9.
On car 2, be equipped with respectively a pair of emergency braking device (brake equipment) 12 with each car guide rail 3 relative configuration.Each emergency braking device 12 has the wedge (brake component) that can contact/separate with car guide rail 3.Contact forcibly with car guide rail 3 by each wedge car 2 is braked.
Bottom in hoistway 1 is provided with and prevents that the bottom of car 2 direct impacts in the hoistway 1 is to relax the car of the impact of car 2 with energy disperser with prevent that the bottom of counterweight 4 direct impacts in the hoistway 1 is with the counterweight usefulness energy disperser (all not shown) of mitigation to the impact of counterweight 4.In addition, with in the energy disperser, the speed maxim of the car 2 of allowing during with car 2 collisions is set at the collision permissible speed at car; With in the energy disperser, the speed maxim of the counterweight 4 of allowing during with counterweight 4 collisions is set at the collision permissible speed in counterweight.
In addition, be provided with the governor 14 that comprises governor sheave 13 on the top of hoistway 1.Be provided with tension wheel (not shown) in the bottom of hoistway 1.Between governor sheave 13 and tension wheel, be wound with governor rope 15.One end of governor rope 15 is connected with emergency braking device 12 by union lever 16 with the other end.Thus, governor rope 15 moves along with moving of car 2, and governor sheave 13 rotates according to the speed of car 2.
Governor 14 is provided with and produces and the speed detector of the cooresponding signal of rotation of governor sheave 13 (for example rotary encoder etc.) 17.To send the safety device 18 of elevator from the information of speed detector 17 to.
Behind the working signal that receives from safety device 18, winch carries out braking maneuver with brake equipment 10.The rotation of drive pulley 9 is braked with the braking maneuver of brake equipment 10 by winch.
In addition, behind the working signal that receives from safety device 18, governor 14 is firmly grasped the action of governor rope 15.By firmly grasping governor rope 15 by governor 14, union lever 16 rises with respect to car 2, carries out the braking maneuver of each emergency braking device 12.By the braking maneuver of each emergency braking device 12, each wedge contacts with car guide rail 3, and car 2 is stopped forcibly.
By any one braking at least of braking with 10 pairs of drive pulley 9 of brake equipment by winch and braking by 12 pairs of cars 2 of each emergency braking device, arrive car with before the position of energy disperser at car 2, the speed of car 2 becomes below the car collision permissible speed.That is, when the velocity anomaly of car 2, safety device 18 is controlled winch respectively with brake equipment 10 and governor 14, makes to arrive car with before the position of energy disperser at car 2 that the speed of car 2 becomes car with below the collision permissible speed of energy disperser.
Then, action is described.When elevator turns round, detect the speed of car 2 often by speed detector 17.Surpassed the 1st when overrunning detection level in the speed of car 2, carried out the braking maneuver of winch with brake equipment 10 by the control of safety device 18.Thus, the rotation of drive pulley 9 is braked.
Surpassed the 1st in the speed of car 2 and overrun and further rise behind the detection level, so that surpassed the 2nd when overrunning detection level, the control by safety device 18 makes promptly governor rope 15 of governor 14.Thus, union lever 16 rises, and carries out the braking maneuver of each emergency braking device 12.Thus, car 2 is stopped forcibly.
Then, the 1st deriving method of value of overrunning detection level is described.Fig. 2 is that the safety device 18 of presentation graphs 1 detects after the 1st of car 2 overruns, and is applied to the brake torque on the drive pulley 9 and the diagram of curves of time relation (time that is brake torque changes).As shown in the figure, when safety device 18 detected the 1st of car 2 and overruns, the beginning winch was with the braking maneuver of brake equipment 10.Then, at process action t delay time
0And become T constantly
1Before, do not produce brake torque.Becoming T constantly
1The time produce brake torque, rise continuously along with the process of time.Then, becoming T constantly
2The time brake torque reach maxim.After reaching maxim, brake torque is remained stationary.
In addition, Fig. 3 is the speed of the car 2 obtained according to brake torque and the time relation of Fig. 2 of expression and the diagram of curves of time relation (being the time variation of the speed of car 2).As shown in the figure, when safety device 18 detect the 1st of car 2 overrun after, become T constantly
1Before, do not produce the brake torque that is applied on the drive pulley 9, therefore, the speed of car 2 continues to rise.At process moment T
1Afterwards, produce the brake torque that is applied on the drive pulley 9, car 2 reduces speed now.
At this moment, reach peaked moment T becoming brake torque
2Before, the brake torque that is applied on the drive pulley 9 rises continuously along with the process of time, and therefore, it is big that the deceleration/decel of car 2 also becomes continuously.At process moment T
2Afterwards, brake torque maintains maxim, and therefore, the deceleration/decel of car 2 becomes constant, is becoming T constantly
3The time the mobile of car 2 stop.
In order to derive the 1st detection level of overrunning, at first the time of calculating brake torque shown in Figure 2 with the ratings of machine such as weight of brake equipment 10 and car 2 according to winch changes.At this moment, the calculating that changes of the time of brake torque is to carry out under the loading condition of the car 2 of difficult deceleration at car 2.Then,, adopt predefined method, obtain the brake torque and the time relation (the promptly approximate time with brake torque changes) of the approximate usefulness of simplification according to the time variation of the brake torque that calculates.
Fig. 4 is brake torque and time relation, the brake torque of approximate usefulness and the diagram of curves of time relation of presentation graphs 2 simultaneously.As shown in the figure, in the brake torque and time relation of approximate usefulness, detect the 1st of car 2 at safety device 18 and overrun, pass through action t delay time
1And become T constantly
4Before, brake torque is 0, at moment T
4Instantaneously rise to maxim from 0, through T constantly
4Afterwards, maintain maxim (dotted line among the figure).That is, obtain at process action t delay time
1After moment T
4Make that brake torque is instantaneous to rise to maxim brake torque and time relation such, approximate usefulness from 0.In addition, as the brake torque of obtaining approximate usefulness and the method for time relation, be not limited to for example also can before brake torque becomes maxim from 0, make the instantaneous rising of brake torque with the method shown in the dotted line of Fig. 4 with being divided into a plurality of stages.
Then, according to the brake torque of approximate usefulness and speed and time and acceleration/accel and the time relation that time relation is obtained car 2.Fig. 5 is brake torque and the speed of car 2 that time relation obtain and the diagram of curves of time relation of expression according to the approximate usefulness of Fig. 4.In addition, Fig. 6 is brake torque and the acceleration/accel of car 2 that time relation obtain and the diagram of curves of time relation of expression according to the approximate usefulness of Fig. 4.As shown in the figure, detect the 1st of car 2 at safety device 18 and overrun, pass through action t delay time
1And become T constantly
4Before, the speed of car 2 is with constant acceleration/accel a
1Rise point-blank; At process moment T
4Afterwards, with constant acceleration/accel a
2Descend point-blank.Then, at elapsed time t
2And become T constantly
3The time, car 2 stops.
After the speed of obtaining car 2 and time and acceleration/accel and time relation, as the position x of car 2
0Function obtain the 1st detection level v that overruns
0, make that the speed when car 2 arrives cars with the position of energy disperser is collision permissible speed (predetermined value) v of car usefulness energy disperser
t
Particularly, be divided into safety device 18 detect the 1st of car 2 overrun the back before drive pulley 9 is produced brake torques during car 2 collide car with the situation of energy disperser and to drive pulley 9 generation brake torques afterwards car 2 collide car and consider with the situation of energy disperser.
(x
01-(v
01·t
1′+1/2·a
1·t
1′
2)，v
01+a
1·t
1′)=(0，v
t) …(1)
The t of subtractive (1)
1', as x
01Function obtain v
01, then become formula (2).
v
01(x
01)＝(-2·a
1·x
01+v
t 2)
0.5 …(2)
In addition, car 2 collides car with under the situation of energy disperser after the brake torques in that drive pulley 9 is produced, and collides the time of car till with energy disperser to car 2 and is made as t producing brake torque
2', then the relation of formula (3) is set up.
(x
1-(v
1·t
2′+1/2·a
2·t
2′
2)，v
1+a
2·t
2′)＝(0，v
t) …(3)
The position and the speed of the car 2 when in addition, safety device 18 being detected the 1st of car 2 overrun are made as (x
02, v
02), the position and the speed of the car 2 when having produced brake torque are made as (x
1, v
1), then the relation of formula (4) is set up.
(x
1，v
1)＝(x
02-(v
02·t
1+1/2·a
1·t
1 2)，v
02+a
1·t
1) …(4)
Cancellation t from formula (3) and formula (4)
2' and (x
1, v
1), as x
02Function obtain v
02, then become formula (5).
v
02(x
02)＝(a
2 2·t
1 2-2·a
2·x
02-a
2·a
1·t
1 2+t
t 2)
0.5+a
2·t
1-a
1·t
1…(5)
More than, as the position x of car 2
0Function obtain the 1st detection level v that overruns
0, represent with following formula (6).
v
0(x
0)＝Max{v
01(x
0)，v
02(x
0)} …(6)
Wherein, formula (6) is meant v
01(x
0) and v
02(x
0) in any one bigger value.
And, to the normal speed mode of the car 2 of undermost car stop position cruising with the 1st detection level v that overruns that adopts that said method obtains
0Difference less, since for example car 2 rock the speed that causes rises or speed detector 17 causes detection error etc., winch is with brake equipment 10 might misoperation the time, in order to prevent the misoperation of winch with brake equipment 10, at the 1st detection level v that overruns
0In add the addition value of regulation, obtain the final the 1st detection level of overrunning.
Fig. 7 the 1st diagram of curves of relation of position of overrunning detection level and car 2 that to be expression obtain according to the brake torque of the approximate usefulness of Fig. 4 and time relation.As shown in the figure, in hoistway 1, be set with the detected value constant interval of overrunning (interval of regulation) along with the 1st value of overrunning detection level 30 diminishes with the position of energy disperser near car; And adjacent with the detected value constant interval of overrunning, no matter how the 1st value of overrunning detection level 30 all is constant overrunning between the detected value constant region in the position of car 2.
The overrun value of value for adopting said method to obtain of detection level 30 of the 1st in the detected value constant interval of overrunning.In addition, curve 20～23 is illustrated in 4 the mutual different positions in the detected value constant interval of overrunning, and the speed of car 2 has surpassed the 1st the variation of speed of car 2 when overrunning detection level 30.All curves 20～23 become the value of the car collision permissible speed of car usefulness energy disperser with the position of energy disperser at car.Therefore, when car 2 arrival cars were used the position of energy disperser, the speed of car 2 was the value of car with the car collision permissible speed of energy disperser.
In such lift appliance, in advance safety device 18 is set with according to the position of car 2 and is used to begin winch with the 1st of the braking maneuver of brake equipment 10 detection level of overrunning, be set to the 1st value of overrunning detection level the regulation interval of energy disperser from car, make the speed of car 2 become car collision permissible speed with the position of energy disperser at car, therefore, can prevent that car 2 from colliding the speed of car when the energy disperser and producing deviation.Therefore, can bring into play the ability of car effectively, can set lowlyer with the car collision permissible speed of energy disperser car with energy disperser.Thus, the size of car can be reduced, and the miniaturization of hoistway 1 can be realized with energy disperser.
In addition, owing to be with the braking maneuver of brake equipment 10 car 2 to be braked by winch, therefore, utilize existing brake equipment that car 2 is braked, just can with the position of energy disperser the speed of car 2 be suppressed to the collision permissible speed of car usefulness energy disperser at car.
In addition, owing to be by the braking maneuver of emergency braking device 12 car 2 to be braked, therefore, even under the situations such as main rope 11 fractures of for example suspension craning cab 2, car 2 is stopped.
Fig. 8 is the constructional drawing of the lift appliance of expression embodiments of the present invention 2.In Fig. 8, car 2 is provided with the speed detector (for example linear encoder etc.) 31 of the speed that is used to detect car 2.Send information (electric signal) to safety device 18 from speed detector 31.
When the working signal that receives from safety device 18, winch carries out braking maneuver with brake equipment 10.The rotation of drive pulley 9 is braked with the braking maneuver of brake equipment 10 by winch.In addition, behind the working signal that receives from safety device 18, each emergency braking device 12 carries out braking maneuver.By the braking maneuver of each emergency braking device 12, each wedge contacts with car guide rail 3, and car 2 is stopped forcibly.That is, winch begins braking maneuver with emergency braking device 12 with brake equipment 10 under the different mutually detection levels of overrunning, adopt mutual diverse ways that car 2 is braked.Other structure is identical with embodiment 1 with action.
Then, the 2nd deriving method of value of overrunning detection level is described.Fig. 9 be the safety device 18 of presentation graphs 8 detect the 2nd overrun after, be applied to the diagram of curves of braking force on the car 2 and time relation (promptly the time to the braking force of car 2 changes).As shown in the figure, when safety device 18 detected the 2nd of car 2 and overruns, the beginning winch was with the braking maneuver of brake equipment 10.Then, at process action t delay time
10And become T constantly
11Before, do not produce brake torque.Becoming T constantly
11The time produce braking force, rise continuously along with the process of time.Then, becoming T constantly
12The time braking force reach maxim.After reaching maxim, braking force is remained stationary.
In addition, Figure 10 is the speed of the car 2 obtained according to braking force and the time relation of Fig. 9 of expression and the diagram of curves of time relation (being the time variation of the speed of car 2).As shown in the figure, when safety device 18 detect the 2nd of car 2 overrun after, become T constantly
11Before, do not produce the braking force to car 2, therefore, the speed of car 2 continues to rise.At process moment T
11Afterwards, produce the braking force to car 2, car 2 beginnings are slowed down rapidly.
At this moment, becoming T constantly
12Before, to braking force rising continuously along with the process of time of car 2, therefore, it is big that the deceleration/decel of car 2 also becomes continuously.At process moment T
12Afterwards, braking force maintains maxim, and therefore, the deceleration/decel of car 2 becomes constant, is becoming T constantly
13The time the mobile of car 2 stop.
In order to derive the 2nd detection level of overrunning, at first the time of calculating braking force shown in Figure 9 according to the ratings of machine such as weight of each emergency braking device 12 and car 2 changes.The calculating that the time of the braking force of this moment changes is to carry out under the loading condition of the car 2 of difficult deceleration at car 2.Then,, adopt predefined method, obtain the braking force and the time relation (promptly approximate) of the approximate usefulness of simplification with the variation of braking force time according to the time variation of the braking force that calculates.
Figure 11 is braking force and time relation, the braking force of approximate usefulness and the diagram of curves of time relation of presentation graphs 9 simultaneously.As shown in the figure, in the braking force and time relation of approximate usefulness, in the braking maneuver of each emergency braking device 12 of beginning, through action t delay time
11And become T constantly
14Before, braking force is 0, at moment T
14Instantaneously rise to maxim from 0, through T constantly
14Afterwards, maintain maxim (dotted line among the figure).That is, obtain at process action t delay time
11After moment T
14Make that braking force is instantaneous to rise to maxim braking force and time relation such, approximate usefulness from 0.In addition, as the braking force of obtaining approximate usefulness and the method for time relation, be not limited to for example also can before braking force becomes maxim from 0, make the instantaneous rising of braking force with the method shown in the dotted line of Figure 11 with being divided into a plurality of stages.
Then, according to the braking force of approximate usefulness and speed and time and acceleration/accel and the time relation that time relation is obtained car 2.Figure 12 is braking force and the speed of car 2 that time relation obtain and the diagram of curves of time relation of expression according to the approximate usefulness of Figure 11.In addition, Figure 13 is braking force and the acceleration/accel of car 2 that time relation obtain and the diagram of curves of time relation of expression according to the approximate usefulness of Figure 11.As shown in the figure, detect the 2nd of car 2 at safety device 18 and overrun, pass through action t delay time
11And become T constantly
14Before, the speed of car 2 is with constant acceleration/accel a
11Rise point-blank; At process moment T
14Afterwards, with constant acceleration/accel a
12Descend point-blank.Then, at elapsed time t
12And become T constantly
13The time, car 2 stops.
After the speed of obtaining car 2 and time and acceleration/accel and time relation, as the position x of car 2
10Function obtain the 2nd detection level v that overruns
10, make that the speed when car 2 arrives cars with the position of energy disperser is that car collides permissible speed (predetermined value) v
t
Particularly, be divided into safety device 18 detect the 2nd of car 2 overrun the back before car 2 is produced braking forces during car 2 collide car with the situation of energy disperser and to car 2 generation braking forces afterwards car 2 collide car and consider with the situation of energy disperser.
Collided car with under the situation of energy disperser before car 2 is produced braking force, car 2 collides the car energy disperser under the state that is not braked.The position and the speed of car 2 during therefore, with the braking maneuver of each emergency braking device 12 of beginning is made as (x
011, v
011), be made as t with colliding the time of car till to car 2 after the braking maneuver of each emergency braking device 12 of beginning with energy disperser
11', then the relation of formula (7) is set up.
(x
011-(v
011·t
11′+1/2·a
11·t
11′
2)，v
011+a
11·t
11′)＝(0，v
t) …(7)
The t of subtractive (7)
11', as x
011Function obtain v
011, then become formula (8).
v
011(x
011)＝(-2·a
11·x
011+t
t 2)
0.5 …(8)
In addition, after car 2 is produced braking forces, collide car, the generation braking force is collided the time of car till with energy disperser to car 2 be made as t with under the situation of energy disperser
12', then the relation of formula (9) is set up.
(x
11-(v
11·t
12′+1/2·a
12·t
12′
2)，v
11+a
12′·t
12′)＝(0，v
t) …(9)
The position and the speed of the car 2 when in addition, safety device 18 being detected the 2nd of car 2 overrun are made as (x
012, v
012), the position and the speed of the car 2 when having produced braking force are made as (x
11, v
11), then the relation of formula (10) is set up.
(x
11，v
11)＝(x
012-(v
012·t
11+1/2·a
11·t
11 2)，v
012+a
11·t
11)…(10)
Cancellation t from formula (9) and formula (10)
12' and (x
11, v
11), as x
012Function obtain v
012, then become formula (11).
v
012(x
012)＝(a
12 2·t
11 2-2·a
12·x
012-a
12·a
11·t
11 2+v
t 2)
0.5+a
12·t
11-a
11·t
11
…(11)
More than, as the position x of car 2
10Function obtain the 1st detection level v that overruns
10, represent with following formula (12).
v
10(x
10)＝Max{v
011(x
10)，v
012(x
10)} …(12)
Wherein, formula (12) is meant v
011(x
10) and v
012(x
10) in any one bigger value.
And, the 2nd detection level v that overruns that the 1st acceleration/accel is set pattern and adopted that said method obtains
10Difference less, since for example car 2 rock the speed that causes rises or speed detector 31 causes detection error etc., when each emergency braking device 12 might misoperation, in order to prevent the misoperation of each emergency braking device 12, at the 2nd detection level v that overruns
10In add the addition value of regulation, obtain the final the 2nd detection level of overrunning.
Figure 14 the 2nd diagram of curves of relation of position of overrunning detection level and car 2 that to be expression obtain according to the braking force of the approximate usefulness of Figure 11 and time relation.As shown in the figure, in hoistway 1, be set with the detected value constant interval of overrunning (interval of regulation) along with the 2nd value of overrunning detection level 40 diminishes with the position of energy disperser near car; And adjacent with the detected value constant interval of overrunning, no matter how the 2nd value of overrunning detection level 40 all is constant overrunning between the detected value constant region in the position of car 2.
The overrun value of value for adopting said method to obtain of detection level 40 of the 2nd in the detected value constant interval of overrunning.In addition, curve 50～53 is illustrated in 4 the mutual different positions in the detected value constant interval of overrunning, and the speed of car 2 has surpassed the 2nd the variation of speed of car 2 when overrunning detection level 40.All curves 50～53 become the value of the car collision permissible speed of car usefulness energy disperser with the position of energy disperser at car.Therefore, when car 2 arrival cars were used the position of energy disperser, the speed of car 2 became the value of car with the car collision permissible speed of energy disperser.That is, for the speed of car 2, where be no matter the braking maneuver of each emergency braking device 12 begins the position of back car 2, can guarantee to collide the car energy disperser with car collision permissible speed.
In such lift appliance, in advance safety device 18 is set with the 1st detection level and the 2nd detection level of overrunning of overrunning, surpassed the 1st winch that begins braking maneuver when overrunning detection level with brake equipment 10 with surpassed the 2nd emergency braking device 12 that begins braking maneuver when overrunning detection level in the speed of car 2 and adopt the mutual diverse ways car 2 is braked in the speed of car 2, therefore, can adopt different braking methods that car 2 is braked according to the intensity of anomaly of the speed of car 2, can brake car 2 more reliably.
Owing to brake with brake equipment 10 and 12 pairs of cars 2 of emergency braking device by winch, therefore, can utilize existing brake equipment that car 2 is braked, can be suppressed to below the car collision permissible speed with the position of energy disperser speed at car with car 2.
Claims (5)
1. a lift appliance is characterized in that, above-mentioned lift appliance has:
Car, it is lifting in hoistway;
The energy disperser of above-mentioned car, it is arranged on the bottom in the above-mentioned hoistway;
Brake equipment, it is used for the mobile of above-mentioned car braked; And
Safety device, it makes above-mentioned brake equipment work when the velocity anomaly of above-mentioned car, arrive at above-mentioned car before the position of above-mentioned energy disperser, and the speed of above-mentioned car is become below the collision permissible speed of above-mentioned energy disperser,
The detection level of overrunning has been set to above-mentioned safety device in advance in position according to above-mentioned car,
Surpassed above-mentioned overrunning during detection level in the speed of above-mentioned car, above-mentioned safety device begins the work of above-mentioned brake equipment,
The value of the above-mentioned detection level of overrunning from the regulation interval of the position of above-mentioned energy disperser is set to, by above-mentioned brake equipment above-mentioned car is braked on the position arbitrarily in the afore mentioned rules interval, the speed when above-mentioned car arrives the position of above-mentioned energy disperser all becomes above-mentioned collision permissible speed.
2. lift appliance according to claim 1 is characterized in that,
Above-mentioned lift appliance also has winch, and above-mentioned winch has the drive pulley of main rope that is wound with the above-mentioned car of suspention, and the rotation by above-mentioned drive pulley makes above-mentioned car lifting,
Above-mentioned brake equipment is the winch brake equipment that the rotation of above-mentioned drive pulley is braked.
3. lift appliance according to claim 1 is characterized in that,
Above-mentioned brake equipment is the emergency braking device that is loaded on the above-mentioned car, and it is braked the mobile of above-mentioned car by making brake component contact with the guide rail of the above-mentioned car of guiding.
4. lift appliance according to claim 1 is characterized in that,
Above-mentioned brake equipment has the 1st brake equipment and the 2nd brake equipment that adopts mutual diverse ways that above-mentioned car is braked,
The above-mentioned detection level of overrunning is made of greater than the above-mentioned the 1st the 2nd of the detection level detection level of overrunning of overrunning the 1st overrun detection level and value,
Surpassed the above-mentioned the 1st when overrunning detection level in the speed of above-mentioned car, above-mentioned safety device begins the work of above-mentioned the 1st brake equipment, surpassed the above-mentioned the 2nd when overrunning detection level in the speed of above-mentioned car, above-mentioned safety device begins the work of above-mentioned the 2nd brake equipment.
5. lift appliance according to claim 4 is characterized in that,
Above-mentioned lift appliance also has winch, and above-mentioned winch has the drive pulley of main rope that is wound with the above-mentioned car of suspention, and the rotation by above-mentioned drive pulley makes above-mentioned car lifting,
Above-mentioned the 1st brake equipment is to be used for winch brake equipment that the rotation of above-mentioned drive pulley is braked,
Above-mentioned the 2nd brake equipment is the emergency braking device that is loaded on the above-mentioned car, and it is braked the mobile of above-mentioned car by making brake component contact with the guide rail of the above-mentioned car of guiding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP273993/2005 | 2005-09-21 | ||
| JP2005273993A JP4403123B2 (en) | 2005-09-21 | 2005-09-21 | Elevator equipment |
| PCT/JP2006/307085 WO2007034587A1 (en) | 2005-09-21 | 2006-04-04 | Elevator device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101151202A CN101151202A (en) | 2008-03-26 |
| CN101151202B true CN101151202B (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800098893A Active CN101151202B (en) | 2005-09-21 | 2006-04-04 | Elevator device |
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| Country | Link |
|---|---|
| EP (1) | EP1927567B1 (en) |
| JP (1) | JP4403123B2 (en) |
| KR (1) | KR100909304B1 (en) |
| CN (1) | CN101151202B (en) |
| WO (1) | WO2007034587A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100891443B1 (en) * | 2007-08-06 | 2009-04-03 | 한국미쓰비시엘리베이터 주식회사 | The delay output apparatus of elevator brake system and the performing method |
| JP5333234B2 (en) * | 2007-12-17 | 2013-11-06 | 三菱電機株式会社 | Elevator equipment |
| JP5381716B2 (en) * | 2007-12-27 | 2014-01-08 | 三菱電機株式会社 | Elevator equipment |
| FI20105587A0 (en) | 2010-05-25 | 2010-05-25 | Kone Corp | A method for limiting the load on an elevator assembly and an elevator assembly |
| FI122393B (en) * | 2010-10-11 | 2011-12-30 | Kone Corp | Method in the event of an elevator emergency stop and lift safety arrangement |
| JP5526092B2 (en) * | 2011-09-06 | 2014-06-18 | 株式会社日立製作所 | Electronic elevator |
| CN104291193A (en) * | 2014-11-06 | 2015-01-21 | 康力电梯股份有限公司 | Elevator dragging driving device |
| CN104340821A (en) * | 2014-11-06 | 2015-02-11 | 康力电梯股份有限公司 | Girder-less driving device for home elevator |
| CN110316628B (en) * | 2018-03-28 | 2021-08-03 | 上海三菱电梯有限公司 | Elevator safety system |
| JP7140634B2 (en) * | 2018-10-30 | 2022-09-21 | 株式会社日立製作所 | elevator control system |
| EP3819245A1 (en) * | 2019-11-08 | 2021-05-12 | KONE Corporation | An elevator |
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|---|---|---|---|---|
| CN1486918A (en) * | 2002-10-01 | 2004-04-07 | 三菱电机株式会社 | Controller for elevator |
| WO2004031064A1 (en) * | 2002-10-04 | 2004-04-15 | Hitachi, Ltd. | Elevator system |
| JP2004137055A (en) * | 2002-10-18 | 2004-05-13 | Toshiba Elevator Co Ltd | Control system for elevator |
| WO2004083091A1 (en) * | 2003-03-18 | 2004-09-30 | Mitsubishi Denki Kabushiki Kaisha | Elevator device, and emergency stop device for elevator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004028947A1 (en) * | 2002-09-24 | 2004-04-08 | Mitsubishi Denki Kabushiki Kaisha | Elevator safety system |
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- 2005-09-21 JP JP2005273993A patent/JP4403123B2/en active Active
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2006
- 2006-04-04 WO PCT/JP2006/307085 patent/WO2007034587A1/en active Application Filing
- 2006-04-04 KR KR1020077021195A patent/KR100909304B1/en active IP Right Grant
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486918A (en) * | 2002-10-01 | 2004-04-07 | 三菱电机株式会社 | Controller for elevator |
| WO2004031064A1 (en) * | 2002-10-04 | 2004-04-15 | Hitachi, Ltd. | Elevator system |
| JP2004137055A (en) * | 2002-10-18 | 2004-05-13 | Toshiba Elevator Co Ltd | Control system for elevator |
| WO2004083091A1 (en) * | 2003-03-18 | 2004-09-30 | Mitsubishi Denki Kabushiki Kaisha | Elevator device, and emergency stop device for elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100909304B1 (en) | 2009-07-24 |
| JP2007084239A (en) | 2007-04-05 |
| WO2007034587A1 (en) | 2007-03-29 |
| EP1927567B1 (en) | 2014-03-05 |
| CN101151202A (en) | 2008-03-26 |
| KR20080014732A (en) | 2008-02-14 |
| EP1927567A1 (en) | 2008-06-04 |
| JP4403123B2 (en) | 2010-01-20 |
| EP1927567A4 (en) | 2012-12-19 |
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