CN101044081B - Elevator apparatus - Google Patents

Elevator apparatus Download PDF

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Publication number
CN101044081B
CN101044081B CN2005800356763A CN200580035676A CN101044081B CN 101044081 B CN101044081 B CN 101044081B CN 2005800356763 A CN2005800356763 A CN 2005800356763A CN 200580035676 A CN200580035676 A CN 200580035676A CN 101044081 B CN101044081 B CN 101044081B
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CN
China
Prior art keywords
mentioned
resistance
braking
drive pulley
car
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Expired - Fee Related
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CN2005800356763A
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CN101044081A (en
Inventor
上田隆美
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/24Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/32Control 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00Other common features of elevators
    • B66B7/06Arrangements of ropes or cables
    • B66B7/10Arrangements of ropes or cables for equalising rope or cable tension
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00Kinds or types of lifts in, or associated with, buildings or other structures

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)
  • Braking Arrangements (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

An elevator device in which an elevator car is lifted and lowered by drive force of drive devices. Each of the drive devices has a drive sheave, a motor for rotating the drive sheave, and a brake device for braking rotation of the drive sheave. The brake device has brake bodies belonging to different groups. In emergency braking, the brake device causes the brake bodies to generate force for each group at a different timing.

Description

Lift appliance
Technical field
The present invention relates to make the lift appliance of car lifting by the propulsive effort of a plurality of actuating devices.
Background technology
In lift appliance in the past, make the car lifting by the 1st and the 2nd actuating device of being located at hoistway top.On car, be provided with the sensor that detects car inclination.In the advancing of car, become according to the inclination (for example, with reference to patent documentation 1) of eliminating car from the signal of sensor with the 2nd driving device controls the 1st.
Patent documentation 1:WO2004/026749A1
In lift appliance in the past as described above, if the braking of the brake equipment of the 1st and the 2nd actuating device is regularly inconsistent when emergency braking, then car produces, and brings unplessantness displeasure might for the passenger in the car.
Summary of the invention
The present invention proposes in order to solve above-mentioned problem, and its purpose is to provide a kind of car that can suppress when emergency braking to produce the bevelled lift appliance.
Lift appliance of the present invention has: a plurality of actuating devices; The car of lifting by the propulsive effort of actuating device; And a plurality of brake equipments that the lifting of car is braked, each brake equipment has a plurality of drg main bodys of a plurality of groups that belong to different, and when emergency braking, brake equipment staggers for each group and regularly and by the drg main body produces braking force.
Description of drawings
Fig. 1 is the constructional drawing of the lift appliance of expression embodiment of the present invention 1.
Fig. 2 is the circuit diagram of driving circuit of the 1st to the 6th magnet coil of presentation graphs 1.
Fig. 3 is the resistance value different action different instruction diagrams that cause drg main body of expression because of the resistance of Fig. 2.
Fig. 4 is the circuit diagram of driving circuit of the 1st to the 6th magnet coil of the lift appliance of expression embodiment of the present invention 2.
Fig. 5 is the block diagram of control part of the 1st to the 6th select switch of expression control chart 4.
Fig. 6 is the block diagram of control part of the 1st to the 6th select switch of the lift appliance of expression control embodiment of the present invention 3.
Fig. 7 is the circuit diagram of driving circuit of the 1st to the 6th magnet coil of the lift appliance of expression embodiment of the present invention 4.
Fig. 8 is the resistance value different contacts disconnection action different instruction diagrams that cause electromagentic switching apparatus of expression because of the resistance of Fig. 7.
The specific embodiment
Preferred implementation of the present invention is described with reference to the accompanying drawings.
Embodiment 1
Fig. 1 is the constructional drawing of the lift appliance of expression embodiment of the present invention 1.In the drawings, be provided with the 1st and the 2nd actuating device (winch) 1,2 on the top of hoistway.The 1st actuating device 1 has the 1st drive pulley 3, make 3 rotations of the 1st drive pulley the 1st electrical motor 4, as and the 1st brake wheel 5 of the braking swivel of the 1st drive pulley 3 one rotation and the 1st brake equipment 6 that the rotation of the 1st brake wheel 5 is braked.
The 2nd actuating device 2 has the 2nd drive pulley 7, make 7 rotations of the 2nd drive pulley the 2nd electrical motor 8, as and the 2nd brake wheel 9 of the braking swivel of the 2nd drive pulley 7 one rotation and the 2nd brake equipment 10 that the rotation of the 2nd brake wheel 9 is braked.
Many (only illustrating 1 in the drawings) the 1st main steel ropes 11 of on the 1st drive pulley 3, reeling.Many (only illustrating 1 in the drawings) the 2nd main steel ropes 12 of on the 2nd drive pulley 7, reeling.
On the 1st end of the 1st and the 2nd main steel rope 11,12, be connected with car 13.On the 2nd end of the 1st main steel rope 11, be connected with the 1st counterweight 14.On the 2nd end of the 2nd main steel rope 12, be connected with the 2nd counterweight 15.That is, car 13 and the 1st and the 2nd counterweight 14,15 are hung in the hoistway with 1: 1 roping arrangement by the 1st and the 2nd main steel rope 11,12, utilize propulsive effort lifting in hoistway of the 1st and the 2nd actuating device 1,2.
On car 13, be provided with the 1st steel cable connecting portion 13a and be configured in the 2nd steel cable connecting portion 13b of the opposition side of the 1st steel cable connecting portion 13a with respect to the center of gravity of car 13.The the 1st and the 2nd steel cable connecting portion 13a, the 13b center of gravity with car 13 on vertical plane is the center balanced configuration.On the 1st steel cable connecting portion 13a, be connected with the 1st main steel rope 11.On the 2nd steel cable connecting portion 13b, be connected with the 2nd main steel rope 12.
The 1st brake equipment 6 has the 1st to the 3rd drg main body 16a~16c of a plurality of groups (being the 1st to the 3rd group) belonging to different herein.The 2nd brake equipment 10 has the 4th to the 6th drg main body 16d~16f of a plurality of groups (being the 1st to the 3rd group) belonging to different herein.
Particularly, the 1st and the 4th drg main body 16a, 16d belong to the 1st group, and the 2nd and the 5th drg main body 16b, 16e belong to the 2nd group, and the 3rd and the 6th drg main body 16c, 16f belong to the 3rd group.
The 1st drg main body 16a have can with the 1st brake plate 17a of the brake surface clutch of the 1st brake wheel 5, with the 1st brake plate 17a by be pressed on the 1st brake wheel 5 the 1st retarding spring (mechanical spring) thus 18a, be fixed on the 1st brake plate 17a the 1st iron core 19a and by attracting the 1st iron core 19a to make the 1st brake plate 17a leave the 1st magnet coil 20a of the 1st brake wheel 5.
The the 2nd to the 6th drg main body 16b-16f and the 1st drg main body 16a similarly have brake plate 17b~17f, retarding spring 18b~18f, iron core 19b~19f and magnet coil 20b~20f.
Fig. 2 is the circuit diagram of driving circuit of the 1st to the 6th magnet coil 20a~20f of presentation graphs 1.Attract the electric current of amplifier 21a~21f to offer magnet coil 20a~20f from the 1st to the 6th braking via electromagentic switching apparatus 22.
Electromagentic switching apparatus 22 has the 22g of driven for opening and closing portion that the braking of being connected attracts the 1st to the 6th contact 22a~22f between amplifier 21a~21f and the magnet coil 20a~20f and is used to open and close contact 22a~22f.Resistance 22j and diode 22k that the 22g of driven for opening and closing portion has iron core 22h, is wound on the switch coil 22i on the iron core 22h and is connected in parallel with switch coil 22i.
Contact 22a~22f is closed usually.But when when the 22g of driven for opening and closing portion has imported urgent stop instruction signal, contact 22a~22f disconnects.Thus, the electric current that offers magnet coil 20a~20f of drg main body 16a~16f is simultaneously severed.
Corresponding the 1st to the 6th resistance 23a~23f and corresponding the 1st to the 6th diode 24a~24f and the 1st to the 6th magnet coil 20a~20f are connected in parallel.Diode 24a~24f and corresponding resistance 23a~23f are connected in series.
Be set to identical with the resistance value that belongs to the last bonded assembly resistance of magnet coil 20a~20f 23a~23f on the same group herein.Particularly, the resistance value R4 identical (R1=R4) of the resistance value R1 of the 1st resistance 23a and the 4th resistance 23d, the resistance value R5 identical (R2=R5) of the resistance value R2 of the 2nd resistance 23b and the 5th resistance 23e, the resistance value R6 identical (R3=R6) of the resistance value R3 of the 3rd resistance 23c and the 6th resistance 23f.
In addition, different with the resistance value that belongs to not the last bonded assembly resistance of magnet coil 20a~20f 23a~23f on the same group.Particularly, (R1>R2), the resistance value R2 of the 2nd resistance 23b is greater than the resistance value R3 of the 3rd resistance 23c (R2>R3) greater than the resistance value R2 of the 2nd resistance 23b for the resistance value R1 of the 1st resistance 23a.
The following describes action.When turning round usually, thereby the 1st and the 2nd drive pulley 3,7 is rotated simultaneously, car 13 and counterweight 14,15 liftings in hoistway by driven in synchronism the 1st and the 2nd electrical motor 4,8.In the advancing of car 13, by the electromagnetic actuators that is made of iron core 19a~19f and magnet coil 20a~20f, brake plate 17a~17f overcomes the spring force of retarding spring 18a~18f and leaves from brake wheel 5,9.
In addition, in the stopping of car 13, magnet coil 20a~20f is in non-excited state, by the spring force of retarding spring 18a~18f with brake plate 17a~17f by being pressed on the brake wheel 5,9, keep the quiescence of car 13.
And, in the advancing of car 13, promptly stop under the situation of car 13, cut off energising to electrical motor 4,8, import urgent stop instruction signal to the 22g of driven for opening and closing portion simultaneously, simultaneously break 22a~22f.Thus, the energising of magnet coil 20a~20f also is forced to cut off, by the spring force of retarding spring 18a~18f with brake plate 17a~17f by being pressed on the brake wheel 5,9.Its result produces friction force between brake plate 17a~17f and the brake wheel 5,9, and the rotation of brake wheel 5,9 and drive pulley 3,7 is stopped, and car 13 promptly stops.
At this moment, because the resistance value of the resistance 23a~23f that is connected in parallel with magnet coil 20a~20f is by above-mentioned setting, so the timing that every group of drg main body 16a~16f produces braking force is staggered successively a little.That is, the group of drg main body 16a~16f is that braking maneuver is regularly organized.
Herein, Fig. 3 is resistance value different the cause drg main body 16a~16f action different instruction diagrams of expression because of resistance 23a~23f of Fig. 2.The resistance value of resistance 23a-23f is big more, and then to begin to spend the time that the electric current of magnet coil 20a~20f becomes till 0 to actual flow just short more from cut off energising to magnet coil 20a~20f by urgent halt instruction.Therefore, the bigger side's of the resistance value of resistance 23a~23f brake plate gap (gap between brake plate 17a~17f and the brake wheel 5,9) more early becomes 0.That is, the side that the resistance value of resistance 23a~23f is bigger produced braking force and has an effect in the moment more early.
Therefore, under situation, produce braking force according to the order of the 1st and the 4th drg main body 16a, 16d, the 2nd and the 5th drg main body 16b, 16e, the 3rd and the 6th drg main body 16c, 16f according to above-mentioned such resistance value of having set resistance 23a~23f.
In this lift appliance, because when emergency braking, the braking force of the every group of drg main body 16a~16f that stagger produces regularly, so can prevent from car 13 is applied excessive deceleration/decel.In addition, for the 1st and the 2nd brake wheel 5,9 brake activation power several times, so even just in case about braking regularly on produced a little inconsistently, the difference of braking force is also very little.Therefore, can suppress car 13 when emergency braking produces.
Embodiment 2
Then, Fig. 4 is the circuit diagram of driving circuit of the 1st to the 6th magnet coil 20a~20f of the lift appliance of expression embodiment of the present invention 2, and the integral structure of lift appliance is identical with embodiment 1 (Fig. 1).In the drawings, in the circuit in parallel, be provided with 2 the 1st resistance 23a1,23a2 with the 1st magnet coil 20a.The 1st resistance 23a1,23a2 are connected in parallel mutually, and are connected in series with the 1st diode 24a.
Be connected with between the 1st diode 24a and the 1st resistance 23a1, the 23a2 with a certain side among the 1st resistance 23a1, the 23a2 optionally with the 1st diode 24a bonded assembly the 1st select switch 25a.On the 2nd to the 6th magnet coil 20b~20f, also similarly be connected with the 2nd to the 6th resistance 23b1~23f2 and the 2nd to the 6th select switch 25b~25f with the 1st magnet coil 20a.
The resistance value of the 1st resistance 23a1 is set to such an extent that be slightly larger than the resistance value of the 1st resistance 23a2.The resistance value of the 2nd resistance 23b1 is set to such an extent that be slightly larger than the resistance value of the 2nd resistance 23b2.The resistance value of the 3rd resistance 23c1 is set to such an extent that be slightly larger than the resistance value of the 3rd resistance 23c2.The resistance value of the 4th resistance 23d1 is set to such an extent that be slightly larger than the resistance value of the 4th resistance 23d2.The resistance value of the 5th resistance 23e1 is set to such an extent that be slightly larger than the resistance value of the 5th resistance 23e2.The resistance value of the 6th resistance 23f1 is set to such an extent that be slightly larger than the resistance value of the 6th resistance 23f2.
In addition, the resistance value of the 1st resistance 23a1 equals the resistance value of the 4th resistance 23d1.The resistance value of the 1st resistance 23a2 equals the resistance value of the 4th resistance 23d2.The resistance value of the 2nd resistance 23b1 equals the resistance value of the 5th resistance 23e1.The resistance value of the 2nd resistance 23b2 equals the resistance value of the 5th resistance 23e2.The resistance value of the 3rd resistance 23c1 equals the resistance value of the 6th resistance 23f1.The resistance value of the 3rd resistance 23c2 equals the resistance value of the 6th resistance 23f2.
And the resistance value of the 1st resistance 23a1,23a2 is greater than the resistance value of the 2nd resistance 23b1,23b2.The resistance value of the 2nd resistance 23b1,23b2 is greater than the resistance value of the 3rd resistance 23c1,23c2.
Fig. 5 is the block diagram of control part of the 1st to the 6th select switch 25a~25f of expression control chart 4.The corresponding signal of load of 26,27 outputs of the 1st and the 2nd weighting apparatus and car 13.The 1st weighting apparatus 26 is located at the 1st steel cable connecting portion 13a.The 2nd weighting apparatus 27 is located at the 2nd steel cable connecting portion 13b.Particularly, weighting apparatus 26,27 is by built-in elastomeric flexible output and the corresponding signal of tension force of main steel rope 11,12.
Signal input comparing section 28 from weighting apparatus 26,27.Comparing section 28 by relatively from the signal of weighting apparatus 26,27, thereby detect overbalance between the tension force of the tension force of the 1st main steel rope 11 and the 2nd main steel rope 12.Instruction generating unit 29 generates the command signal that is used for operating selection switch 25a~25f according to the overbalance testing result in the comparing section 28.
Instruction generating unit 29 is according to the Tension Difference between the 1st and the 2nd main steel rope 11,12, and blocked operation select switch 25a~25f is so that the generation of the braking force of Nei drg main body 16a~16f is regularly staggered on the same group.For example, when the tension force of the 1st main steel rope 11 during, select the 1st to the 3rd resistance 23a1,23b1,23c1 and the 4th to the 6th resistance 23d2,23e2,23f2 greater than the tension force of the 2nd main steel rope 12.
Thus, in the 1st group, the 4th drg main body 16d slightly earlier produces braking force than the 1st drg main body 16a.In addition, in the 2nd group, the 5th drg main body 16e slightly earlier produces braking force than the 2nd drg main body 16b.And then in the 3rd group, the 6th drg main body 16f slightly earlier produces braking force than the 3rd drg main body 16c.
Comparing section 28 and instruction generating unit 29 both can also can be made of the analogous circuit of direct use from the analog signal of weighting apparatus 26,27 by constituting being converted into computing machine digital signal, that carry out calculation process from the signal of weighting apparatus 26,27.
In this lift appliance, because when emergency braking, the braking force of inner brake main body 16a~16f on the same group of staggering produces regularly, to eliminate the Tension Difference of the 1st and the 2nd main steel rope 11,12, produces so can more effectively suppress car 13 when emergency braking.
Embodiment 3
Then, the block diagram of Fig. 6 control part that to be expression control the 1st to the 6th select switch 25a~25f of the lift appliance of embodiment of the present invention 3.In this embodiment, replace weighting apparatus 26,27,, instruct generating unit 31 to generate the instruction that is used for switching selection switch 25a~25f according to from the signal of output with the car inclination sensor 30 of the corresponding signal of inclination of car 13.The braking force of inner brake main body 16a~16f produces regularly to instruct generating unit 31 to stagger on the same group, to select switch 25a-25f output instruction signal, to eliminate the inclination of car 13.
For example, when car 13 is inclined to the 2nd steel cable connecting portion 13b when lower than the 1st steel cable connecting portion 13a, the 4th drg main body 16d slightly earlier produces braking force than the 1st drg main body 16a, the 5th drg main body 16e slightly earlier produces braking force than the 2nd drg main body 16b, and the 6th drg main body 16f slightly earlier produces braking force than the 3rd drg main body 16c.Other formations are identical with embodiment 2.
In this lift appliance, because when emergency braking, the braking force generation timing of inner brake main body 16a~16f on the same group of staggering to eliminate the inclination of car 13, produces so can more effectively suppress car 13 when emergency braking.
Embodiment 4
Next, Fig. 7 is the circuit diagram of driving circuit of the 1st to the 6th magnet coil 20a~20f of the lift appliance of expression embodiment of the present invention 4.Lift appliance single-piece structure is identical with embodiment 1 (Fig. 1).Attract the electric current of amplifier 21a, 21d to offer from the 1st and the 4th braking and belong to the 1st group the 1st and the 4th magnet coil 20a, 20d via the 1st electromagentic switching apparatus 32.
The 1st electromagentic switching apparatus 32 has the braking of being connected and attracts contact 22a, the 22d between amplifier 21a, 21d and magnet coil 20a, the 20d and be used for the 1st 32a of driven for opening and closing portion that docking point 22a, 22d open and close.The 1st 32a of driven for opening and closing portion has the 1st iron core 32b, be wound on the 1st switch coil 32c on the 1st iron core 32b, be connected in parallel with the 1st switch coil 32c the 1st resistance 32d and the 1st diode 32e.
Attract the electric current of amplifier 21b, 21e to offer from the 2nd and the 5th braking and belong to the 2nd group the 2nd and the 5th magnet coil 20b, 20e via the 2nd electromagentic switching apparatus 33.The 2nd electromagentic switching apparatus 33 has contact 22b, 22e and the 2nd 33a of driven for opening and closing portion.The 2nd 33a of driven for opening and closing portion has the 2nd iron core 33b, the 2nd switch coil 33c, the 2nd resistance 33d and the 2nd diode 33e.
Attract the electric current of amplifier 21c, 21f to offer from the 3rd and the 6th braking and belong to the 3rd group the 3rd and the 6th magnet coil 20c, 20f via the 3rd electromagentic switching apparatus 34.The 3rd electromagentic switching apparatus 34 has contact 22c, 22f and the 3rd 34a of driven for opening and closing portion.The 3rd 34a of driven for opening and closing portion has the 3rd iron core 34b, the 3rd switch coil 34c, the 3rd resistance 34d and the 3rd diode 34e.
Contact 22a~22f is closed usually.But when when driven for opening and closing portion 32~34 has imported urgent stop instruction signal, contact 22a~22f disconnects.Thus, cut off the electric current of the magnet coil 20a~20f that offers drg main body 16a~16f.
The resistance value that belongs to not on the same group resistance 32d, 33d, 34d is different.Particularly, the resistance value of the 1st resistance 32d is greater than the resistance value of the 2nd resistance 33d, and the resistance value of the 2nd resistance 33d is greater than the resistance value of the 3rd resistance 34d.
Herein, Fig. 8 is that expression disconnects the different instruction diagram of action because of resistance 32d, the 33d of Fig. 7, the different contacts of electromagentic switching apparatus 32~34 that cause of resistance value of 34d.The resistance value of resistance 32d, 33d, 34d is big more, then to import the time of urgent stop instruction signal (becoming 0 from the voltage of command signal) till actual break 22a~22f just short more to opening and closing drive division 32a, 33a, 34a.
Therefore, under situation, produce braking force according to the order of the 1st and the 4th drg main body 16a, 16d, the 2nd and the 5th drg main body 16b, 16e, the 3rd and the 6th drg main body 16c, 16f according to above-mentioned such resistance value of having set resistance 23a~23f.
In this lift appliance, because when emergency braking, the generation of the braking force of every group of drg main body 16a~16f is regularly staggered, so can prevent from car 13 is applied excessive deceleration/decel.In addition, for the 1st and the 2nd brake wheel 5,9 brake activation power several times, produce so when emergency braking, can suppress car 13.
And, in above-mentioned example, on 1 brake equipment, be provided with 3 drg main bodys, but also the drg main body more than 2 or 4 can be set on 1 brake equipment.
In addition, in above-mentioned example, be located at 1 drg main body on the brake equipment and all belong to different groups, but also can make a plurality of drg main bodys belong to identical group.For example, when in 1 brake equipment, being provided with 4 drg main bodys, can be in 2 groups with 2 one components of 4 drg main bodys.
In addition, in above-mentioned example, used 2 actuating devices, but also can be more than 3.
In addition, in above-mentioned example, used 2 counterweights, but also can be for more than 1 or 3.
In addition, in above-mentioned example, begin regularly for every group of drg main body 16a~16f braking maneuver that staggered, but also the drg main body can be divided into many groups, for every group of method of differently using intermittent or successional control brake power respectively.
In addition, in above-mentioned example, the brake equipment that the rotation of drive pulley is braked has been described, but the present invention also can be applied to the brake equipment the lifting of car braked by additive method.For example, also can be installed on the car, with brake component by being pressed in a plurality of car brake equipments of on the car guide rail lifting of car being braked.At this moment, on each car brake equipment, be provided with a plurality of drg main bodys of a plurality of groups that belong to different.In addition, thus also can be for being located at hoistway or supporting on the holding components of actuating device, by the mobile a plurality of steel cable brake equipments that the lifting of car is braked of braking to main steel rope.Also be provided with a plurality of drg main bodys of a plurality of groups that belong to different this moment on each steel cable brake equipment.

Claims (6)

1. a lift appliance is characterized in that,
This lift appliance has:
The 1st actuating device, it has the 1st drive pulley, makes the 1st electrical motor of above-mentioned the 1st drive pulley rotation and the 1st brake equipment that the rotation of above-mentioned the 1st drive pulley is braked;
The 2nd actuating device, it has the 2nd drive pulley, makes the 2nd electrical motor of above-mentioned the 2nd drive pulley rotation and the 2nd brake equipment that the rotation of above-mentioned the 2nd drive pulley is braked; And
Car, its utilize the above-mentioned the 1st and the propulsive effort of the 2nd actuating device carry out lifting,
Above-mentioned car is draped by the 1st main steel rope that is wound on above-mentioned the 1st drive pulley, and by being wound on the 2nd main steel rope on above-mentioned the 2nd drive pulley, be draped at the opposition side of above-mentioned the 1st main steel rope with respect to the center of gravity of above-mentioned car,
Above-mentioned the 1st brake equipment has a plurality of drg main bodys of a plurality of groups that belong to different,
Above-mentioned the 2nd brake equipment has a plurality of drg main bodys that belong to above-mentioned a plurality of groups,
When emergency braking, the above-mentioned the 1st and the 2nd brake equipment staggers for each above-mentioned group and regularly produces braking force by above-mentioned drg main body, to suppress above-mentioned car run-off the straight.
2. lift appliance according to claim 1, it is characterized in that, above-mentioned brake equipment detects the above-mentioned the 1st and the Tension Difference of the 2nd main steel rope, and the braking force of opening the above-mentioned drg main body in same above-mentioned group according to the mentioned strain mistake when emergency braking produces regularly.
3. lift appliance according to claim 1 is characterized in that above-mentioned brake equipment detects the inclination of above-mentioned car, and produces regularly according to the stagger braking force of the above-mentioned drg main body in same above-mentioned group of the inclination of above-mentioned car.
4. lift appliance according to claim 1 is characterized in that,
Above-mentioned each drg main body has: with the brake plate of the braking swivel clutch of above-mentioned the 1st drive pulley one rotation; With with the brake plate of the braking swivel clutch of above-mentioned the 2nd drive pulley one rotation; Above-mentioned brake plate by the retarding spring that is pressed on the above-mentioned braking swivel; Be used to produce the spring force that overcomes above-mentioned retarding spring and make above-mentioned brake plate leave the magnet coil of the electromagnetic force of above-mentioned braking swivel; And the resistance that is connected in parallel with above-mentioned magnet coil,
The resistance value of above-mentioned resistance is respectively organized and difference according to above-mentioned.
5. lift appliance according to claim 1 is characterized in that,
Above-mentioned each drg main body has: with the brake plate of the braking swivel clutch of above-mentioned the 1st drive pulley one rotation; With with the brake plate of the braking swivel clutch of above-mentioned the 2nd drive pulley one rotation; Above-mentioned brake plate by the retarding spring that is pressed on the above-mentioned braking swivel; Be used to produce the spring force that overcomes above-mentioned retarding spring and make above-mentioned brake plate leave the magnet coil of the electromagnetic force of above-mentioned braking swivel,
When emergency braking, according to the energising of cutting off for each above-mentioned group of different timing above-mentioned magnet coil.
6. lift appliance according to claim 5 is characterized in that,
This lift appliance also has a plurality of electromagentic switching apparatus that are used to switch to the energising/cut-out of the electric current of above-mentioned magnet coil,
Above-mentioned each electromagentic switching apparatus has switch coil that opens and closes with above-mentioned magnet coil bonded assembly contact, to above-mentioned contact and the resistance that is connected in parallel with above-mentioned switch coil,
The resistance value of above-mentioned resistance is respectively organized and difference according to above-mentioned.
CN2005800356763A 2005-08-25 2005-08-25 Elevator apparatus Expired - Fee Related CN101044081B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/015434 WO2007023550A1 (en) 2005-08-25 2005-08-25 Elevator device

Publications (2)

Publication Number Publication Date
CN101044081A CN101044081A (en) 2007-09-26
CN101044081B true CN101044081B (en) 2011-01-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2005800356763A Expired - Fee Related CN101044081B (en) 2005-08-25 2005-08-25 Elevator apparatus

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