CN102838012B - Elevator system - Google Patents
Elevator system Download PDFInfo
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- CN102838012B CN102838012B CN201210205818.8A CN201210205818A CN102838012B CN 102838012 B CN102838012 B CN 102838012B CN 201210205818 A CN201210205818 A CN 201210205818A CN 102838012 B CN102838012 B CN 102838012B
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- winch
- hoist cable
- rope sheave
- pulley
- main hoist
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Abstract
When a winch protrudes from a counter balance, it is necessary to correspondingly expand the cross section of a hoist trunk along the horizontal direction, and when the winch is arranged on the upper part of the counter balance, it is necessary to increase the height of the hoist trunk, thus it is necessary to synthetically study on the above problems, thus an elevator with reduced cross area of the hoist trunk and lowered height of the hoist trunk is provided. A pulley is respectively arranged on an elevator cab and the counter balance, the 2:1 sling winding way is used, and a main sling with flexibility and a rope pulley in the ratio of the diameter D of the rope pulley to the diameter d of the main sling being smaller than 20, are used for connecting the elevator cab with the counter weight, and the winch is fixed on a beam on the upper side of the counter weight, and the counter weight is made towards the direction along which a rotation axle of the winch is parallel to a long edge of the counter weight.
Description
Technical field
The present invention relates to a kind of elevator device, especially relate to and a kind of connect lift car and counterbalanced weight by main hoist cable, by the rope sheave of winch, elevator is carried out to this main hoist cable, the elevator device relying on the friction between main hoist cable and rope sheave to make lift car to be elevated.
Background technology
In general, elevator device (hereinafter referred to as " elevator ") adopts mode of traction to drive usually.In the elevator adopting this mode of traction, utilize main hoist cable to suspend lift car and counterbalanced weight in midair, and by winch, elevator is carried out to main hoist cable, make lift car and counterbalanced weight in the opposite direction carry out oscilaltion thus.
In recent years, the elevator of machine House-less becomes main flow elevator gradually, and the principal feature of the elevator of machine House-less is that winch is arranged in hoist trunk.The elevator of this kind of machine House-less roughly can be divided into 2 kinds of structures, by the structure that winch is arranged on the structure above lift car or counterbalanced weight and is arranged on by winch in lift car and hoist trunk space between the walls.
The elevator of above-mentioned machine House-less adopts the hoist cable winding method of so-called 2: 1 mostly, that is, utilizes the principle of movable pulley, lift car and counterbalanced weight arrange pulley, makes the winding amount of winch to main hoist cable equal 2 times of the amount of movement of lift car.Adopt the hoist cable winding method of 2: 1, power required when winch reels can be reduced.
According to said structure, with winch to the winding amount of main hoist cable identical with the amount of movement of lift car 1: 1 hoist cable winding method compare, the torque needed for winding can be reduced, so the winch be made up of electrical motor etc. can be made to realize miniaturization.
On the other hand, concerning the hoist trunk for lift car movement within it, the requirement reducing the channel cross-sectional area of the horizontal surface of hoist trunk and the gap between elevator car roof and hoist trunk top is very urgent.
For this reason, as in first technology, a kind of scheme has been proposed, it is while the hoist cable winding method of employing 2: 1, multiple stage winch (comprising electrical motor) is set, and use the miniature electric motor that torque rating is little, reduce the gap between elevator car roof and hoist trunk top thus.
As reducing the machine room-less elevator in gap between elevator car roof and hoist trunk top and employing the elevator of multiple motors, such as, elevator disclosed in patent documentation 1 is proposed.
In the elevator disclosed in patent documentation 1, as shown in Fig. 1 and Fig. 2 of patent documentation 1, adopt the hoist cable winding method of 1: 1, connect lower end and the counterbalanced weight of lift car with main hoist cable, and the winch that have employed external-rotor motor is set at hoist trunk top.Do not need to arrange Machine Room thereby, it is possible to realize one, and the structure in gap between elevator car roof and hoist trunk top can be reduced as far as possible.
In addition, in the elevator disclosed in patent documentation 1, as shown in Fig. 4 and Fig. 5 of patent documentation 1, also proposed the top and the counterbalanced weight that connect lift car with main hoist cable, arrange above counterbalanced weight two electrical motors structure and lift car and counterbalanced weight respective above the structure of electrical motor is set.
According to said structure, by winch being divided into two winchs, compared with carrying out with employing winch the occasion that drives, the torque drop needed for the electrical motor of each winch can be at half, its result, can make winch realize miniaturization.
At first technical literature
Patent documentation
The flat 7-117957 publication of patent documentation 1 Japanese Patent Laid-Open
In the elevator structure disclosed in patent documentation 1, in order to realize not arranging Machine Room this purpose, have employed the structure that winch is set above lift car or counterbalanced weight and the structure be arranged on by winch in lift car and hoist trunk gap between the walls.
Leptosomatic external-rotor motor is have employed in the winch of patent documentation 1., under the occasion using wire sling, when being wound on rope sheave by main hoist cable, the restriction of the rate of curving aspect of wire sling can be subject to.If main hoist cable is wound on the little rope sheave of the rate of curving (rope sheave that diameter is little) limpingly, then main hoist cable may be caused exceedingly to bend, thus affect the service life of main hoist cable.
In order to prevent above-mentioned situation, such as, when adopting diameter d to be the main hoist cable of 10 millimeters, need 40 times more than of the diameter d adopting diameter D at main hoist cable to be diameter D to be the rope sheave of more than 400 millimeters.
Therefore, if adopt the electrical motor of conventional external-rotor-type, the diameter due to rope sheave is 400 millimeters, so the volume size of winch can be caused to increase further.
Such as, when the width of counterbalanced weight is approximately 200 millimeters, because the size of winch is beyond the size of counterbalanced weight, exceed the corresponding size of size partly so the channel cross-sectional area of the horizontal direction of hoist trunk must be expanded to this.
In addition, at the two ends of the main hoist cable connecting lift car and counterbalanced weight, there is the main rope end be fixed on hoist trunk wall, owing to main rope end being provided with the spring etc. of tension adjustment, so need to guarantee to arrange the size needed for these springs in hoist trunk.Therefore, when being arranged on above counterbalanced weight by winch, due to what need to guarantee these components, size is set, so the height dimension of hoist trunk also can be caused to increase.
Summary of the invention
The present invention has carried out comprehensive research to above-mentioned problem, the object of the present invention is to provide a kind of elevator, the component parts of elevator can be limited in the scope of specific structure and numerical value by this elevator, thus can reduce the channel cross-sectional area of hoist trunk and the height dimension of hoist trunk.
The feature of elevator of the present invention is, lift car and counterbalanced weight arrange pulley respectively, and adopt the hoist cable winding method of 2: 1, the relation between the diameter d of main hoist cable and the diameter D of rope sheave is used to meet the main hoist cable with flexibility of D/d < 20 and rope sheave is connected lift car and counterbalanced weight, winch is arranged on the top of counterbalanced weight, and makes winch towards the S. A. of the winch direction parallel relative to the long limit of counterbalanced weight.
Invention effect
As mentioned above, owing to adopting the hoist cable winding method of 2: 1, and use the relation between the diameter D of the diameter d of main hoist cable and rope sheave to meet the main hoist cable with flexibility and the rope sheave of D/d < 20, so electrical motor and rope sheave miniaturization can be made, by this miniaturization, winch width can be adopted to be less than or equal to the winch of counterbalanced weight width, by the upside of the actuation range at counterbalanced weight, in the mode that the axle on the long limit and electrical motor that make counterbalanced weight is parallel to each other, this winch is arranged on counterbalanced weight towards in the drop shadow spread of upside, can obtain thus while the channel cross-sectional area of the horizontal direction reducing hoist trunk, reduce the effect of the height dimension of hoist trunk.
Accompanying drawing explanation
Fig. 1 is the integrally-built block diagram of elevator represented involved by one embodiment of the invention.
Fig. 2 is the section drawing in the elevator lifting channel cross section represented involved by one embodiment of the invention.
Fig. 3 is the section drawing with the main hoist cable of flexibility used in the elevator involved by one embodiment of the invention.
Fig. 4 is the section drawing in the elevator lifting channel cross section represented involved by other embodiments of the invention.
Fig. 5 is the lateral plan of the side of the elevator hoist represented involved by another embodiment of the present invention.
Fig. 6 represents the front elevation of the P direction of Fig. 4 to the cross section looked.
Fig. 7 is the front elevation representing elevator hoist involved by another embodiment of the present invention and counterbalanced weight.
Fig. 8 is the section drawing in the elevator lifting channel cross section represented involved by another embodiment of the present invention.
Nomenclature
1 ... lift car, 2 ... counterbalanced weight, 3 ... main hoist cable, 5a ... winch, 5b ... winch, 6a ... the pulley of lift car, 6b ... the pulley of lift car, 8 ... the pulley of counterbalanced weight, 9a ... rope sheave, 9b ... rope sheave, 10a ... electrical motor, 10b ... electrical motor, 11 ... counterweight block, 12a ... the guiding groove of pulley, 12b ... the guiding groove of pulley, 13 ... counter-weight guide rails, 14 ... cage side guide rail, 21 ... drg, 23 ... transom, 24 ... pedestal is set, 25 ... vibration-proof rubber, 26 ... winch pedestal
Detailed description of the invention
First embodiment
Be described referring to the structure of accompanying drawing to the elevator involved by one embodiment of the invention.First see figures.1.and.2 the explanation carried out roughly.
In general elevator, utilize main hoist cable 3 to connect lift car 1 and counterbalanced weight 2, winch 5 is set in the midway of main hoist cable 3, by this winch 5, elevator is carried out to main hoist cable, and by this elevator action, lift car 1 and counterbalanced weight 2 are in the opposite direction elevated up and down.
The main hoist cable 3 of the present embodiment uses 2 main hoist cables of a pair, is provided with the spring 31 of tension adjustment at one end 30a of main hoist cable 3, and is suspended in and is fixed on the beam 32 of hoist trunk wall.In addition, the other end 30b of main hoist cable 3 is also provided with the spring 31 of tension adjustment, and is suspended in equally and is fixed on the beam 32 of hoist trunk wall.
Be fixed with two pulleys and pulley 6a and pulley 6b at the top of lift car 1, lift car 1 utilizes winch 5 to be elevated.In addition, pulley 6a and pulley 6b also can be arranged on the bottom of lift car 1.
Fig. 2 represents and is arranged on the pulley 6a at lift car 1 top and the state of pulley 6b, pulley 6a and pulley 6b is respectively arranged with two guiding grooves and main hoist cable guiding groove 12a and main hoist cable guiding groove 12b, each main hoist cable 3a, 3b are respectively by these guiding grooves 12a, 12b.In addition, each main hoist cable 3a, 3b are by being directed into rope sheave 9a and the rope sheave 9b of winch 5 after pulley 6b.
Winch 5 is made up of a pair winch and monomer winch 5a and monomer winch 5b (hereinafter referred to as " winch "), winch 5a is made up of the first electrical motor 10a and the rope sheave 9a that rotates under the driving of this first electrical motor 10a, winch 5b is made up of the second electrical motor 10b and the rope sheave 9b that rotates under the driving of this second electrical motor 10b, and winch 5 is arranged on and is fixed on the beam 32 of hoist trunk wall.
Can know from Fig. 1 and Fig. 2, winch 5a is arranged relatively with winch 5b, and the interval between the main hoist cable guiding groove 12a of respective rope sheave and the distance between rope sheave 9a and rope sheave 9b and pulley 6b and main hoist cable guiding groove 12b is close.By so determining interval, main hoist cable 3a and main hoist cable 3b from the main hoist cable guiding groove 12a of pulley 6b and main hoist cable guiding groove 12b out time angle diminish, preferred parallel, has the effect in the service life that can extend main hoist cable 3a and main hoist cable 3b thus.
Winch 5 is connected with the pulley 8 that the opposition side at lift car 1 is fixed on counterbalanced weight 2 with main hoist cable 3b by main hoist cable 3a, on pulley 8, the same with pulley 6a, is provided with two guiding grooves and main hoist cable guiding groove 12a and main hoist cable guiding groove 12b.
This pulley 8 is installed along the long side direction of counterbalanced weight 2, in FIG, arranges in the mode of the area of conter being positioned at the direction, upside of counterbalanced weight 2.That is, to be installed into its S. A. orthogonal with the long limit of counterbalanced weight 2 for pulley 8.
So, 2 main hoist cable 3a, 3b are to be suspended in one end 30a on the beam 32 of hoist trunk wall for departure point, by pulley 6a and the pulley 6b of lift car 1, after passing pulley 6a and pulley 6b, further by the pulley 8 extending into counterbalanced weight 2 after the rope sheave 9a of winch 5 and rope sheave 9b, afterwards, the other end 30b of main hoist cable is suspended on the beam 32 of hoist trunk wall.
In the present embodiment, lift car 1 and counterbalanced weight 2 are provided with as the pulley 6a of movable pulley and pulley 6b and pulley 8, so, relative to the main hoist cable winding amount of rope sheave 9a and rope sheave 9b, the amount of movement of lift car 1 is 1/2, namely constitutes the hoist cable winding-structure of 2: 1.
Although the amount of movement of lift car 1 is 1/2, but the power needed for elevator diminishes compared with the hoist cable winding method of 1: 1, so the first electrical motor 10a and the torque needed for the second electrical motor 10b can be reduced, winch 5a and winch 5b can be made to realize miniaturization.
Beam 32 is fixed on the superjacent air space of the counterbalanced weight 2 be arranged in hoist trunk, this beam 32 is provided with two winchs and winch 5a and winch 5b, the elevator arbor of winch 5a and winch 5b is separately installed with rope sheave 9a and rope sheave 9b, and main hoist cable 3 is wound on rope sheave 9a and rope sheave 9b respectively.
As mentioned above, main hoist cable 3a and main hoist cable 3b is respectively by the pulley 6a of elevator car upper and pulley 6b, and its one end is directly connected with building side, and the other end is fixed on building side by after the pulley 8 that is arranged on counterbalanced weight 2 upper surface.
In addition, two winchs and winch 5a and winch 5b are controlled so as to synchronization action by not shown control setup, so can avoid lift car 1 that unnecessary vibration occurs.
At this, the diameter of the first electrical motor 10a and the torque needed for the second electrical motor 10b and rope sheave 9a and rope sheave 9b proportionally increases.Specifically, along with the diameter of rope sheave 9a and rope sheave 9b increases, the length of the moment arm to the point of action that main hoist cable 3a, 3b act on, thus need larger torque.Therefore, in order to make the first electrical motor 10a and the second electrical motor 10b realize miniaturization further, its precondition is the diameter needing to reduce rope sheave 9a and rope sheave 9b.
; as main hoist cable normally used in elevator; the main hoist cable that general employing is made up of steel wire; the diameter of main hoist cable is being set as d; and when the diameter of rope sheave 9a and rope sheave 9b is set as D; if adopt the main hoist cable be made up of steel wire, then need the main hoist cable using D/d > 40.
About this regulation, such as, in the strength modification method of the traction elevator be right in building standard method and the relevant decree of this building standard method and the solution of elevator technology benchmark, do record.
Therefore, in order to reduce the torque needed for the first electrical motor 10a and the second electrical motor 10b, as its precondition, needing the diameter reducing rope sheave 9a and rope sheave 9b, the miniaturization of the first electrical motor 10a and the second electrical motor 10b can be realized.And as mentioned above, if use the main hoist cable be made up of steel wire, then above-mentioned precondition cannot be met.
Therefore, in order to above-mentioned precondition can be met, such as adopt the periphery be made up of thin wire to be coated with the high main hoist cable of the flexibility such as hoist cable or banded hoist cable of synthetic resin, then can reduce the diameter of rope sheave 9a and rope sheave 9b, make it possible to meet above-mentioned precondition.
That is, when adopting by the hoist cable that steel wire is formed, if reduce the diameter of rope sheave 9a and rope sheave 9b, steel wire then can be caused overflexing and the service life of hoist cable is shortened, if and use the high hoist cable of flexibility, then can not there is overflexing situation, even if so reduce the diameter of rope sheave 9a and rope sheave 9b, also can not cause shorten the service life of hoist cable.
Such as, by the reduced 1/2 of rope sheave 9a and rope sheave 9b, then the first electrical motor 10a and the torque needed for the second electrical motor 10b also can be reduced to 1/2, so can reduce the width dimensions of winch 5a and winch 5b.
The main hoist cable that above-mentioned flexibility is high can by reducing the diameter of wire rod and using high tensile steel to obtain, compared with using the occasion of steel wire, even if adopt the main hoist cable of below D/d=20, also the fatigue resistance identical with the main hoist cable of steel wire and long-term reliability can be realized.
As this, there is the main hoist cable of flexibility, preferably adopting the main hoist cable shown in Fig. 3, by adopting following structure, the main hoist cable 3a (3b) with flexibility can be obtained.
As shown in Figure 3,6 thin wires 30 are accumulated unit wire rod 31,6 root unit wire rods 31 are accumulated basic wire rod 32, again 5 pile foundation wire rods 32 are accumulated main body wire rod, after this carry out molding from the surrounding of these wire rods with the synthetic resin 33 with flexibility, main hoist cable 3a (3b) can be obtained.
In the present invention, importantly realize above-mentioned precondition, and on the basis of this, the employing diameter D of rope sheave and the ratio of the diameter d of main hoist cable are main hoist cable and the rope sheave of D/d < 20.Therefore, be necessary to use the hoist cable material with high flexibility.
As mentioned above, electrical motor and rope sheave can being made to realize miniaturization, by meeting above-mentioned precondition, electrical motor and rope sheave can be made to realize the miniaturization corresponding to the width of counterbalanced weight 2.That is, electrical motor and rope sheave that size is less than or equal to counterbalanced weight 2 width can be realized.
Below the method to set up of the first electrical motor 10a and the second electrical motor 10b is described in detail.
As depicted in figs. 1 and 2, on the beam 32 on the upside of the actuation range that the first electrical motor 10a and the second electrical motor 10b is fixed on counterbalanced weight 2, and the rope sheave 9a that has independently of one another of the first electrical motor 10a and the second electrical motor 10b and rope sheave 9b toward each other to.Further, the motor reel that two electrical motors i.e. the first electrical motor 10a and the second electrical motor 10b is configured to the first electrical motor 10a and the second electrical motor 10b is located along the same line.
As the first electrical motor 10a and the second electrical motor 10b, axial dimension can be used to be less than the thin type motor of Width size, and axial dimension also can be used to be greater than the slender type electrical motor of Width size.
In the present embodiment, consider the relation between counterbalanced weight 2, have employed leptosomatic first electrical motor 10a and the second electrical motor 10b, the greatest width dimension namely employing winch is less than or equal to the electrical motor of the width dimensions of counterbalanced weight 2.Now, as mentioned above, preferred rope sheave also has above-mentioned relation.
In the reason of this use slender type electrical motor be, in order to electrical motor is arranged on counterbalanced weight 2 towards within the scope of the area of conter of upside, small-sized electrical motor must be used, and when using small-sized electrical motor, if use slender type electrical motor, then can obtain torque large as far as possible while miniaturization.
According to said structure, by the upside of the actuation range at counterbalanced weight 2, winch 5a and winch 5b is set, and winch 5a and winch 5b is arranged on counterbalanced weight 2 towards within the scope of the area of conter of upside, lift car 1 and winch 5a and winch 5b can be avoided to interfere in the same cross section of hoist trunk, thus the sectional area of hoist trunk can be reduced.That is, owing to winch 5 can be arranged within the scope of the area of conter of the actuation range of counterbalanced weight 2, so the sectional area of hoist trunk can be reduced.
In addition, owing to winch 5a and winch 5b can be arranged on the side of lift car 1, and the top being arranged on lift car 1 is not needed, so the gap between the top of lift car 1 and hoist trunk top can be reduced.That is, there is not winch 5a and winch 5b in the top due to lift car 1, so correspondingly can shorten the height of hoist trunk.
And, by making rope sheave 9a relative with rope sheave 9b, main hoist cable 3a and main hoist cable 3b distance each other can be reduced further, thus angle when winner's hoist cable can be made in the below of rope sheave 9a and rope sheave 9b to enter counterbalanced weight 2 diminishes, and contributes to the service life extending main hoist cable 3a and main hoist cable 3b thus.
In addition, main hoist cable total radical can impartial point cede territory to be arranged on rope sheave 9a and rope sheave 9b time, such as when main hoist cable 3a and main hoist cable 3b is made up of 2 main hoist cables respectively, total radical of main hoist cable is 4, and when winch 5 is made up of winch 5a and winch 5b bis-, each rope sheave 9a and rope sheave 9b reels respectively 2 hoist cables.Therefore, the sum of winch 5 and main hoist cable is preferably even number respectively.
According to the structure of above-mentioned the present embodiment, compared with suspending the occasion of all hoist cables in midair with use rope sheave, act on suspension load on motor reel and reduce half, so the framework that can make the axle of the first electrical motor 10a and the second electrical motor 10b and support these axles realizes miniaturization.
The quantity of winch 5 is not limited in two of the present embodiment, also can use the winch 5 of more than three, certainly, when the quantity of hoist cable is 8, also can use 4 winchs.
As mentioned above, owing to adopting the hoist cable winding method of 2: 1, and use the relation between the diameter D of the diameter d of main hoist cable and rope sheave to meet the main hoist cable with flexibility and the rope sheave of D/d < 20, so electrical motor and rope sheave miniaturization can be made, by this miniaturization, winch width can be adopted to be less than or equal to the winch of counterbalanced weight width, by the upside of the actuation range at counterbalanced weight, in the mode that the axle on the long limit and electrical motor that make counterbalanced weight is parallel to each other, this winch is arranged on counterbalanced weight towards in the drop shadow spread of upside, can obtain thus while the channel cross-sectional area of the horizontal direction reducing hoist trunk, reduce the effect of the height dimension of hoist trunk.
Second embodiment
Referring to Fig. 4, the elevator involved by other embodiments of the invention is described in detail.Be with the difference of the embodiment shown in Fig. 2, in the present embodiment, be arranged on pulley 6a in the pulley 6 at the top of lift car 1 and pulley 6b and form one group, and be spaced apartly provided with another group pulley and pulley 6c and pulley 6d.
In addition, the rope sheave 9a of winch 5a and winch 5b and rope sheave 9b is also with to should predetermined distance mode spaced apart be arranged on beam 32.
On the rope sheave 9a that main hoist cable 3a is wound on winch 5a and winch 5b by pulley 6a and pulley 6b, main hoist cable 3b by pulley 6c and pulley 6d, main hoist cable 3a and main hoist cable 3b and rope sheave 9b.
According to said structure, can the interval between main hoist cable 3a and main hoist cable 3b be set wider, can obtain thus and can improve lift car 1 and suspend at least one effect in the effect that can increase the service life in the effect of stability, the effect reducing the danger that main hoist cable 3a and main hoist cable 3b is intertwined and the guiding groove making main hoist cable 3a and main hoist cable 3b successfully enter each pulley in midair.
In the present embodiment, it is 2 right that the pulley 6 of lift car 1 is provided with, and the pulley 8 be arranged on counterbalanced weight 2 also can use 2 pulleys with each pulley of lift car 1 accordingly.
3rd embodiment
Referring to Fig. 5 and Fig. 6, the winch 5a on hoist trunk top involved by other embodiment another of the present invention and the setting example of winch 5b are described.
In embodiment shown in Fig. 1 to Fig. 3, winch 5a and winch 5b toward each other to state under be fixed on beam 32, so the axial length of winch 5a and winch 5b is added, and makes the length of the transverse direction of winch 5.
On the other hand, the feature of the present embodiment is to propose a kind of structure reducing the lateral length (axial length) of winch 5, in order to shorten the overall length dimension L of the axis of winch 5 entirety, winch 5a and winch 5b is arranged to overlapping in the height direction.
Two winchs and winch 5a and winch 5b are arranged in motor reel and upwards stagger specified amount, the rope sheave 9b being positioned at the second electrical motor 10b of below is compared with the rope sheave 9a of the first electrical motor 10a being positioned at top, at the distance S that axially staggers, thus, the main hoist cable on the rope sheave 9a being wound up into the first electrical motor 10b can not be hindered to pass through.
After this, combined by the pedestal 24b that arranges arranging pedestal 24a and the second electrical motor 10b of transom 23 by the first electrical motor 10a, finally across vibration-proof rubber 25, winch 5a and winch 5b is fixed on a winch pedestal 26.
The object arranging vibration-proof rubber is that the solid-borne sound (Solid Borne Sound) in order to prevent winch 5a and winch 5b is delivered to contiguous room, and reduces the vibration of lift car 1.According to the present embodiment, there is no need to arrange vibration-proof rubber 25 respectively the arranging on pedestal 24b of pedestal 24a and the second electrical motor 10b that arrange of the first electrical motor 10a, therefore, it is possible to reduce the quantity of parts, the length of the short transverse of winch 5a and winch 5b can be reduced.
In the occasion of the present embodiment, need to overlap winch 5a and the space needed for winch 5b in the height direction, but by making lift car 1 lightweight, the lightweight (the stacked blocks number of counterbalanced weight can be reduced) of counterbalanced weight 2 can be realized, its result, can overlap space needed for winch 5a and winch 5b in the height direction at the top belay of counterbalanced weight 2.
What use in an embodiment of the present invention is coated and have the main hoist cable of flexibility compared with the main hoist cable of the use steel wire in first technology by synthetic resin 33, can improve friction coefficient.So under lift car 1 achieves weight-saving situation, the main hoist cable be made up of steel wire easily skids, therefore, compared with the main hoist cable be made up of steel wire, carry out coated main hoist cable advantageously by synthetic resin 33.
On two electrical motors i.e. the first electrical motor 10a and the second electrical motor 10b, be provided with in the position with rope sheave 9a and rope sheave 9b opposition side and be fixed on motor reel and press the brake disc that rotates or brake wheel to carry out the stop mechanism 21a that brakes and stop mechanism 21b by brake shoe.
Lift car 1 is stoped to be elevated when the object of stop mechanism 21a and stop mechanism 21b is on the floor that lift car 1 rests in regulation, due to the side in stop mechanism 21a and stop mechanism 21b occurred that fault or brake shoe there occurs the situation of abnormal wear time, the stop mechanism of the opposing party still can play a role, so can prevent lift car 1 action and suppress the speed of lift car 1 to rise.
These stop mechanisms are arranged on the first electrical motor 10a or the second electrical motor 10b, when the quantity of electrical motor is more, by arranging the drg (not shown) of dual system on lift car 1, can not install stop mechanism on each electrical motor.
4th embodiment
Below another other embodiment of the present invention is described.The setting example being arranged on the pulley on counterbalanced weight 2 when this embodiment is the setting example of winch 5a and the winch 5b be illustrated in fig. 5 and fig..
A lot of user requires to reduce counterbalanced weight 2 length in the height direction.For this reason, as shown in Figure 7, in the present embodiment, 2 small-sized pulleys and pulley 11a and pulley 11b is provided with on the top of counterbalanced weight 2.In the occasion of the present embodiment, axle center pulley 11a and pulley 11b being arranged to pulley 11a and pulley 11b is orthogonal with the long limit of counterbalanced weight 2, that is, pulley 11a and pulley 11b is arranged along the long limit of counterbalanced weight 2, and is positioned at the area of conter towards upside of counterbalanced weight 2.
In addition, reeling relative to total radical N of hoist cable respectively on pulley 11a and pulley 11b is the main hoist cable 3a of N/2 root and main hoist cable 3b.
According to this structure, act on compared with occasion that each pulley 11a is all wound on the load on the axle on pulley 11b and all hoist cables on a pulley and be reduced to half, so the axle of single motor and the weight of pulley can be reduced.
In addition, the quantity due to the guiding groove of pulley 11a and pulley 11b can be N/2, so can carry out slimming to the pulley be arranged on counterbalanced weight 2, and can carry out slimming to the counterbalanced weight 2 being provided with this pulley.
In addition, by the first electrical motor 10a and the second electrical motor 10b that are arranged on hoist trunk top are arranged with staggering in the axial direction, make to enter rope sheave 9a and rope sheave 9b with little angle of incidence from pulley 11a and pulley 11b main hoist cable out, thus, while the abrasion suppressing main hoist cable 3a and main hoist cable 3b, the vibration of lift car 1 can be suppressed.Especially use around by the hoist cable that synthetic resin 33 is coated time, by reducing incident angle, the effect of the abrasion of the synthetic resin 33 alleviating periphery significantly can be obtained.
5th embodiment
Fig. 8 referring to the section drawing of the hoist trunk of the elevator represented involved by another other embodiment of the present invention is described.
The section drawing of elevator lifting channel when Fig. 8 represents that counterbalanced weight 2 is arranged on the side of lift car 1, the upper surface of lift car 1 is provided with pulley 6a and pulley 6b, and main hoist cable 3a and main hoist cable 3b is by guiding groove 12a and guiding groove 12b.
Further, on the rope sheave 9a that main hoist cable 3a and main hoist cable 3b is wound on counterbalanced weight 2 top and rope sheave 9b, and building side is fixed to.
In addition, winch 5a and winch 5b is fixed on not shown beam (beam 32 shown in Fig. 1), and this beam is for connecting the guide rail 13a and guide rail 13b that guide the walking of counterbalanced weight 2.
In the occasion of common elevator, the value obtained after the diameter d that the interval W size being processed to form guiding groove 12a on pulley 6a and pulley 6b and guiding groove 12b equals main hoist cable adds the permission oscillating quantity of main hoist cable 3a and main hoist cable 3b.
According to the present embodiment, interval W can be set to compared with the diameter d of main hoist cable enough large, such as be set as more than 2 times of the diameter d of main hoist cable, become minimum with the incident angle of the pulley 6a and pulley 6b and rope sheave 9a and rope sheave 9b that make lift car 1 top.
Thereby, it is possible to suppress the friction on the surface of main hoist cable 3a and main hoist cable 3b, the vibration of lift car 1 can be suppressed simultaneously.
In addition, according to the present embodiment, winch 5 has two winchs and winch 5a and winch 5b.So, just in case when wherein a winch there occurs fault, monitor the non-equilibrium state of the load between lift car 1 and counterbalanced weight 2, and make lift car increase by remaining winch or decline.
As the confirmation method of non-equilibrium state, such as, the load detection instrument of lift car 1 can be used to confirm, or also can be confirmed by detection hanger tension and motor torque, therefore, any one method above-mentioned can be used to confirm.
In addition, when the winch of a side there occurs fault, with 2 winchs all compared with the occasion normally run, total torque minimizing.If repair time is shorter, then the torque close with the maximum torque of normal winch can be adopted to make lift car low speed elevation.
Claims (7)
1. an elevator device, has: the lift car be elevated in hoist trunk, and described lift car has pulley, and the main hoist cable that one end is fixed in described hoist trunk passes described pulley; Along the counterbalanced weight that described hoist trunk is elevated, described counterbalanced weight has pulley, and the main hoist cable that the other end is fixed in hoist trunk passes described pulley; And winch, described winch is between described counterbalanced weight and described lift car, and be made up of with the electrical motor making described rope sheave rotate the rope sheave of the described main hoist cable of winding, the feature of described elevator device is,
Described main hoist cable is the main hoist cable with flexibility, and the diameter of described main hoist cable is being set as d, and when the diameter of described rope sheave is set as D, described main hoist cable and described rope sheave have the relation of D/d < 20,
Described winch is arranged on the top of described counterbalanced weight, and towards the S. A. of the winch direction parallel relative to the long limit of described counterbalanced weight, and,
Described winch is made up of multiple stage monomer winch, and the respective rope sheave of described monomer winch is wound with many main hoist cables.
2. elevator device as claimed in claim 1, is characterized in that,
The diameter of described rope sheave is less than or equal to the width of described counterbalanced weight.
3. elevator device as claimed in claim 1, is characterized in that,
Described multiple stage monomer winch is made up of two described monomer winchs, and the respective described rope sheave of described monomer winch is wound with 2 main hoist cables.
4. elevator device as claimed in claim 3, is characterized in that,
Described two monomer winchs are with on the beam making the relative mode of respective rope sheave be fixed on to be arranged in described hoist trunk.
5. elevator device as claimed in claim 3, is characterized in that,
Described two monomer winchs respective rope sheave can not be overlapping position to be fixed in an overlapping manner along short transverse on the beam that is arranged in described hoist trunk.
6. elevator device as claimed in claim 3, is characterized in that,
Described two monomer winchs are fixed on the beam that is arranged in described hoist trunk across vibration-proof rubber.
7. elevator device as claimed in claim 1, is characterized in that,
The described main hoist cable with flexibility is made up of unit wire rod, basic wire rod and main body wire rod, and around these wire rods, the synthetic resin with flexibility is used to carry out molding, wherein, described unit wire rod is collected by the thin wire of many steels and forms, described basic wire rod is collected by many described unit wire rods and forms, and described main body wire rod is collected by many described basic wire rods and forms.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-138132 | 2011-06-22 | ||
| JP2011138132A JP5566958B2 (en) | 2011-06-22 | 2011-06-22 | Elevator system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102838012A CN102838012A (en) | 2012-12-26 |
| CN102838012B true CN102838012B (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210205818.8A Expired - Fee Related CN102838012B (en) | 2011-06-22 | 2012-06-18 | Elevator system |
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| Country | Link |
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| JP (1) | JP5566958B2 (en) |
| CN (1) | CN102838012B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6118720B2 (en) * | 2013-12-19 | 2017-04-19 | 株式会社日立製作所 | Elevator equipment |
| CN103723603A (en) * | 2013-12-20 | 2014-04-16 | 康力电梯股份有限公司 | Traction driving device of household lift |
| NL2015822B1 (en) | 2015-11-19 | 2017-06-06 | Cabin Air Group Bv | Cable with a first and a second thimble and at least one yarn, and method for producing an endless winding cable. |
| KR20200046396A (en) * | 2018-10-24 | 2020-05-07 | 현대엘리베이터주식회사 | Apparatus of mutual interlocking elevator |
| CN114108343B (en) * | 2021-11-22 | 2022-11-18 | 抚州大力实业发展有限公司 | Intelligent antifouling hawser |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI92182C (en) * | 1992-07-07 | 1994-10-10 | Kone Oy | Traction sheave elevator |
| FI94123C (en) * | 1993-06-28 | 1995-07-25 | Kone Oy | Pinion Elevator |
| JP3152034B2 (en) * | 1993-10-28 | 2001-04-03 | 三菱電機株式会社 | Traction sheave type elevator device |
| JP3660259B2 (en) * | 2001-03-19 | 2005-06-15 | 東京製綱株式会社 | Wire rope |
| JP4034629B2 (en) * | 2002-09-30 | 2008-01-16 | 東京製綱株式会社 | Hybrid rope |
| WO2006070437A1 (en) * | 2004-12-27 | 2006-07-06 | Mitsubishi Denki Kabushiki Kaisha | Elevator apparatus |
| JP4762210B2 (en) * | 2007-07-31 | 2011-08-31 | 東芝エレベータ株式会社 | elevator |
-
2011
- 2011-06-22 JP JP2011138132A patent/JP5566958B2/en not_active Expired - Fee Related
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- 2012-06-18 CN CN201210205818.8A patent/CN102838012B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP5566958B2 (en) | 2014-08-06 |
| CN102838012A (en) | 2012-12-26 |
| JP2013001565A (en) | 2013-01-07 |
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