CN1522220A

CN1522220A - Elevating/lowering mechanism and elevating/lowering method for elevator

Info

Publication number: CN1522220A
Application number: CNA028131665A
Authority: CN
Inventors: 吉川正巳
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2002-05-01
Filing date: 2002-05-01
Publication date: 2004-08-18
Also published as: EP1500621A1; KR20040007690A; WO2003093156A1; EP1500621A4; JPWO2003093156A1

Abstract

An elevating/lowering mechanism of elevator comprising two sets of hoists (22, 24) for elevating/lowering the cage (8) for elevator and a counterweight (10), controllers (26, 28) for controlling rotation of the two sets of hoists (22, 24) independently, and a looped rope (30) passed around the two sets of hoists (22, 24) respectively. At one of two opposite positions between the two sets of hoists (22, 24), the rope (30) is passed around the pulley (14) of the cage (8) in order to suspend it. At the other position, the rope (30) is passed around the pulley (16) of the counterweight (10) in order to suspend it.

Description

The lifting mechanism of lift appliance and elevating method thereof

Technical field

The present invention relates to the lifting mechanism and the elevating method thereof of lift appliance, the lifting mechanism and the elevating method thereof that use when being specifically related to a kind of cage lifting.

Background technology

Fig. 5 is the mode chart of the lifting mechanism 210 of the traditional lift appliance 200 of expression.

As shown in Figure 5, in lift appliance 200, be provided with lifting mechanism 210.The two ends of the steel rope 30 of lifting mechanism 210 are fixed in the lanyard portion 54 at 4 back sides, floor, Machine Room that are arranged at elevating road 2 tops.The steel rope 30 that is fixed on the fixed part 54 is wound onto on the bob-weight hanging wheel 16 that is arranged at bob-weight 10, and under the bob-weight 10 that plays.Be wound on steel rope 30 on the bob-weight hanging wheel 16 and be wound onto again on the winch 50 that is arranged in the Machine Room 6, hang down to the below on floor, Machine Room 4 then, be wound onto on the hanging wheel 14 that is arranged at cage 8 bottoms, and under the cage 8 of playing.The end that is wound on the steel rope 30 on the hanging wheel 14 of cage 8 is fixed on the fixed part 54.

Again, winch 50 is provided with control panel 52.Use this control panel 52 can set the speed of winch or the revolution of winch 50 is stopped.

In the lift appliance 200 of this structure, winch 50 is in case towards the direction revolution shown in 1. of the arrow of Fig. 5, then steel rope 30 moves thereupon, and the length of the steel rope 30 that bob-weight hanging wheel 16 and winch are 50 shortens, and bob-weight 10 is pulled on towards the direction of arrow shown in 2..On the other hand, the length of the steel rope 30 that winch 50 and cage hanging wheel are 14 is elongated, and cage 8 descends towards the direction of arrow shown in 3..Again, if make winch 50 towards with the opposite sense revolution shown in 1. of the arrow of Fig. 5, then bob-weight 10 descends, cage 8 is pulled on.Use this lifting mechanism 210, make cage 8 and bob-weight 10 in elevating road 2, carry out lifting.

Yet,, need carry out working service and periodical maintenance etc. making winch 50 or control panel 52 stop, making under the provisional state that stops of revolution of winch 50 sometimes for lifting mechanism 210.In this occasion, can not lifting because of cage 8, elevator itself is stopped during pretending industry.Again, the occasion in that the revolution of having to make winch because of failure and other reasons stops can to cause stopping of elevator itself similarly.Like this, if, will cause great inconvenience to the user of elevator because of maintenance and failure and other reasons stop elevator itself.

Again,, consider the environment etc. of the building of setting,, the speed and the capacity of elevator have been done setting in order to ensure essential traffic capacity for lift appliance 200, corresponding with its setting, by control panel 52 revolution of winch 50 is controlled at setting speed.But, owing to normally the traffic capacity of elevator is set in when concentrating the state that conforms to when maximum with the required load of the lifting of cage 8 with the passenger who waits for, therefore, because of the difference of time period, the effective consumption energy problem of traffic capacity surplus often appears and.

Summary of the invention

Even the object of the present invention is to provide a kind of inspection or fault former thereby also can make the lifting mechanism of the improved type electric ladder device of elevator lifting when causing the revolution of winch to stop because of working service etc.Another purpose of the present invention is to provide the lifting mechanism of load a kind of and the lift appliance lifting improved type electric ladder device that conform to, that can adjust traffic capacity.

The lifting mechanism of lift appliance of the present invention comprises:

Make cage and bob-weight carry out 2 groups of winchs of lifting;

The described 2 groups of winchs of stand alone type control are rotating control setup respectively; And

Be wound on the rope of the ring-type on described 2 groups of winchs,

Be wound onto on 1 position of described rope in being clipped in 2 positions of 2 groups of subtends between the winch on the pulley that described cage has, the described cage of playing down,

Be wound onto in addition 1 position of described rope on the pulley that described bob-weight has, described bob-weight plays down.

Adopt this structure,, also can make cage continue lifting, can improve the service of elevator by the opposing party's winch work even a side winch is in the state that revolution stops.Again, adopt this lifting mechanism, the winch revolution by optionally making a side or stop can be adjusted the lift capability of elevator, can make the elevator operation under the situation of restraining invalid energy consumption.

Again, the elevating method of lift appliance of the present invention is 2 groups of winchs in having the elevating road that is arranged at lift appliance and be wound on the described winch, make in the lifting mechanism of lift appliance of rope of ring-type of cage lifting,

Described rope is wound onto on the pulley of described cage on 1 position in being clipped in 2 positions of 2 groups of subtends between the winch, and under the described cage of playing,

On other 1 position, the pulley of described bob-weight is reeled, and under the described bob-weight that plays,

By optionally making described 2 groups of winchs revolution respectively or stopping, making described cage and described bob-weight carry out lifting.

Adopt this method,, therefore can under the situation of restraining invalid energy consumption, make the elevator operation owing to, can adjust the lift capability of elevator by optionally making the winch revolution respectively or stopping.

The simple declaration of accompanying drawing

Fig. 1 is the block diagram of the lift appliance in the expression embodiment of the invention.

Fig. 2 is the mode chart of the winch of the lifting mechanism use of the lift appliance in the expression embodiment of the invention.

Fig. 3 for the configuration relation lifting mechanism of the lift appliance of explanation in the embodiment of the invention, steel rope and winch and hanging wheel thereof use mode chart.

The mode chart that Fig. 4 uses the occasion of cage lifting for explanation by the lifting mechanism of the lift appliance in the embodiment of the invention.

Fig. 5 is the mode chart of the lifting mechanism of the traditional lift appliance of expression.

The specific embodiment

Embodiments of the invention are described with reference to the accompanying drawings.In addition, in each figure,, simplify so that omit this explanation at same or cooresponding part mark prosign.

Fig. 1 is the block diagram of the lift appliance 100 in the expression embodiment of the invention.Fig. 2 is the mode chart of the

winch

22,24 of lifting mechanism 110 uses of expression lift appliance 100.

As shown in Figure 1, has elevating road 2 in the lift appliance 100.The top of elevating road 2 is separated and formation Machine Room 6 by floor, Machine Room 4.

Cage of playing under in elevating road 28 and bob-weight 10.Cage framework 12 is installed on cage 8, above cage framework 12, is provided with cage hanging wheel 14.Be provided with bob-weight hanging wheel 16 on the top of bob-weight 10 again.

Floor, Machine Room 4 is provided with 2 steel rope through holes 18,20.

In Machine Room 6, be provided with lifting mechanism 110.

Lifting mechanism 110 has main winch 22 and auxiliary winch 24.Again, be provided with and main winch 22 cooresponding master control panels 26, and with auxiliary winch 24 cooresponding auxiliary control panels 28.

Again, as shown in Figure 2, main winch 22 is to constitute by large pulley 32 and small sheave 34 are installed on the reaction plate 36 pivotally.Equally, auxiliary winch 24 is to constitute by large pulley 38 and small sheave 40 are installed on the rotary disk 42 pivotally.

See figures.1.and.2, steel rope 30 constitutes ring-type, is wound onto on 1 position in 2 positions of subtend on the big

small sheave

32,34 of main winch 22, and 1 position is wound onto on the big

small sheave

38,40 of auxiliary winch 24 in addition.Steel rope 30 is fully big ropes of intensity.

In the steel rope 30 that connects into ring-type, sagging in elevating road 2 by the steel rope through hole 18 on floor, Machine Room 4 by 1 position that main winch 22 and auxiliary winch 24 are clipped in therebetween 2 positions.Again, 1 position is sagging elevating road 2 from steel rope through hole 20 in addition.

Being wound onto on the cage hanging wheel 14 from steel rope through hole 18 sagging parts elevating road 2 of steel rope 30 hangs and supporting cage 8 down.Again, the opposing party is wound onto on the bob-weight hanging wheel 16 from steel rope through hole 20 sagging parts, hangs and supporting bob-weight 10 down.

The mode chart that Fig. 3 uses for the explanation steel rope 30 and the configuration relation of

winch

22,24 and hanging

wheel

14,16.

As shown in Figure 2, steel rope 30 is 1 circle of ring-type, small sheave 34, large pulley 32 from main winch 22, reel down to the order of bob-weight hanging wheel 16 according to large pulley 38, the small sheave 40 of auxiliary winch 24 again by cage hanging wheel 14, turn back to the small sheave 34 of main winch 22.

Like this, the steel rope 30 of lifting mechanism 110 need not resemble and carry out the end the lifting mechanism of traditional lift appliance and fix, but is wound on the structure on winch or the hanging wheel annularly.

As mentioned above, the lifting mechanism 110 of present embodiment is the structure that contains main winch 22, auxiliary winch 24, master control panel 26, auxiliary control panel 28 and steel rope 30.

The mode chart that Fig. 4 uses the occasion of cage 8 liftings for explanation by lifting mechanism 110.

For example, at this moment, if the big

small sheave

32,34 that makes main winch 22 towards the arrow of Fig. 4 direction shown in 1., with fixed speed revolution, then towards the direction decline α of arrow shown in 2., the steel rope 30 that small sheave 34 and bob-weight hanging wheel are 16 draws α to the steel rope 30 of 14 of large pulley 32 and cage hanging wheels on the direction of arrow shown in 3. in the unit time in the unit time.On the other hand, if the pulley that makes auxiliary winch 24 towards the arrow of Fig. 4 direction shown in 4. with fixed speed revolution, then the steel rope 30 of 14 of large pulley 38 and cage hanging wheels in the unit time towards the direction decline β of arrow shown in 5., the steel rope 30 that small sheave 40 and bob-weight hanging wheel are 16 in the unit time towards the direction rising β of arrow shown in 6..

In this occasion, in the unit time, whole cage 8 is towards the direction drop-down alpha+beta of arrow shown in 7., and whole bob-weight 10 draws alpha+beta on the direction of arrow shown in 8..

Again, when on cage 8, drawing, carry out oppositely directed identical revolution by making

pulley

32,34,38,40, at per unit in the time, can on draw alpha+beta.

In the present embodiment, by control panel 26 with main winch 22 decide speed setting and get greatly, by control panel 28 will assist winch 24 decide speed setting and get little.Like this, can strengthen the setting of the amount of movement α in the unit time to a certain extent, reduce the setting of the amount of movement β in the unit time to a certain extent.

When elevator is worked, the sort of occasion of concentrating the passenger who waits for particularly, main winch 22 and auxiliary winch 24 can be worked simultaneously.Thus, cage 8 is carried out the operation of elevator with the speed that alpha+beta moves in the unit time.

Again, in the time of usually, the revolution of auxiliary winch 24 is stopped, only allowing main winch 22 turn round.In this occasion, become β=0, because of having only main winch 22 revolutions, so in the unit time, can make cage 8 lifting α.At this moment, steel rope 30 becomes the state that makes the elevator operation by 1 group of main winch 22 and control panel 26 under the state that is fixed in auxiliary winch 24.

On the other hand, when the passenger who waits for especially after a little while, only make auxiliary winch 24 runnings, main winch 22 is stopped.In this occasion, become α=0, because of having only auxiliary winch 24 revolutions, so in the unit time, can make cage lifting β.

Like this, owing to can mix the lift capability that situation is set elevator accordingly, therefore can restrain invalid energy consumption with elevator.

Again, when inspections such as working service, the winch revolution that only need stop to keep in repair is keeped in repair under the rotating state of the opposing party's winch.Like this,, can guarantee in the unit time at least that also cage 8 carries out the operation of elevator with the speed that α or β move, can relax elevator user's inconvenience even in when maintenance.

Again, even when a

side winch

22 or 24 is turned round, the same during with maintenance, by making the opposing party's winch revolution, at least can guarantee in the unit time that also cage 8 carries out the operation of elevator with the speed that α or β move, can relax elevator user's inconvenience.

In the present embodiment, be provided with different main winch of command speed and auxiliary winch.But be not limited to this example, 2 winchs with identical speed also can be set.Like this, when maintenance and fault etc., even the occasion that a side stops also can be guaranteed half running velocity of the fastest running velocity.

Again, present embodiment is that the occasion that winch 22,24 and control panel 26,28 are disposed at Machine Room 6 is described.But allocation position is not limited to this example, also can be arranged on other place, and it is medium for

example winch

22,24 and control panel 26,28 to be set directly at elevating road 2.

Again, present embodiment is to be provided with control panel accordingly with 2 winchs respectively, but so long as independently can control winch respectively under the state, then also can use 1 control panel to control.

Again, the allocation position of cage, cage hanging wheel, bob-weight and bob-weight hanging wheel 14 and structure that structure is not limited to illustrate in the present embodiment thereof.

In addition, among the present invention, aspect 2 groups of winchs, for example be equivalent to main winch 22 and auxiliary winch 24 in the present embodiment, aspect the rope of ring-type, for example be equivalent to steel rope 30.Among the present invention, aspect control setup, for example be equivalent to the control panel 26,28 in the present embodiment again.Among the present invention, aspect pulley, for example be equivalent to cage hanging wheel 14 and bob-weight hanging wheel 16 again.

Utilizability on the industry

In sum, adopt the present invention, the elevating mechanism of lift appliance has 2 groups of hoist engines and control device, Can make independently respectively these member work.

Thus, during because of maintenance activity or the reason of fault, even under the state that side's hoist engine stops, Also can proceed the lifting of cage, can improve the service of elevator.

Again, adopt the present invention, optionally make 2 hoist engine work or stop. Thus, energy and elevator Mix situation and adjust accordingly rising or falling speed, restrain superfluous energy consumption, can realize the elevator operation of economy.

Adopt the present invention, because 2 groups of hoist engines are arranged respectively independently, so for the hoist engine phase again, Do not need mutually to make drive beginning, when stopping and consistent etc. complexity and the high control of degree of the speed of driving System. Elevator simpler and that convenience is high can be provided thus.

Claims

1. a lift appliance lifting mechanism is characterized in that, comprising:

Make cage and bob-weight carry out 2 groups of winchs of lifting;

Be wound on the rope of the ring-type on described 2 groups of winchs,

Be wound onto on 1 position of described rope in being clipped in 2 positions of 2 groups of subtends between the winch on the pulley that described cage has, and under the described cage of playing,

On other 1 position, be wound onto on the pulley of described bob-weight, and under the described bob-weight that plays.

2. the lifting mechanism of lift appliance as claimed in claim 1 is characterized in that, described 2 groups of winchs be with a side as main winch, as auxiliary winch, described main winch has big lift capability with respect to described auxiliary winch with the opposing party.

3. the elevating method of a lift appliance is 2 groups of winchs in having the elevating road that is arranged at lift appliance and be wound on the described winch, make in the lifting mechanism of lift appliance of rope of ring-type of cage lifting, it is characterized in that,

By optionally making described 2 groups of winchs revolution respectively or stopping to make described cage and described bob-weight to carry out lifting.