KR20050004923A - Elevator device - Google Patents

Abstract

The object of the present invention is to obtain an elevator apparatus in which the first and second cars connected to both ends of the main rope can be implanted at the same time. Its configuration is that the first and second cars are connected to both ends of the main rope wound around the sheave and the deflector wheel, respectively, and an idea correction device for raising and lowering the carsil of the second car with respect to the car frame is disposed between the carsil and the car frame. After the first car lands on the set idea floor, the car seat is lifted with respect to the car frame by the idea correction device to correct the misalignment of the second car.

Description

Elevator device {ELEVATOR DEVICE}

Conventional 1: 1 roping type elevator apparatuses include a drive sheave and a deflector wheel installed at the top of a hoistway as disclosed in, for example, Japanese Patent Laid-Open No. 2001-240343. It is configured to be connected to both ends of the main rope wound on the. And when the main rope is driven by the drive of the drive sheave and one car lands on the top floor, the other car lands on the bottom floor.

Here, when the extension of the main rope due to the change over time, or the expansion and contraction of the main rope due to the temperature or the load occurs, when one car is implanted, the position of the other car is shifted by the expansion and contraction of the main rope. As a result, both cars cannot be normally conceived at the same time. Therefore, after one car lands, the door opens and closes, the other car needs to land and open the door, and there is a problem that the service remarkably decreases.

Similarly, in the case where the distance between floors is different, especially in the case of three stops or more (three or more landing floors in an elevator apparatus), a problem arises in that both cars cannot be normally implanted simultaneously.

In order to solve such a defect, the conventional jack of the 2: 1 roping system which arrange | positioned the hydraulic jack at both fixed ends of the main rope in a machine room, and adjusted the length of the main rope by the hydraulic jack. Duo-Lifts are proposed, for example, in the elevator world (26.02.1992).

However, since the Duo-Lifts adopt a 2: 1 roping method, the structure is complicated, and two hydraulic jacks are used, so that the price can not be reduced.

Summary of the Invention

SUMMARY OF THE INVENTION The present invention obtains an elevator device of a 1: 1 roping system that corrects a car's implantation position according to a difference in the amount of expansion and contraction of a main rope using an idea correction device and allows both cars to be implanted at the same time.

The elevator apparatus according to the present invention is configured such that the first car and the second car are connected to both ends of the main rope suspended on the sheave and the deflector wheel, and the other car lands on the lowest floor when one car lands on the top floor. In an elevator apparatus, it is provided between the car compartment which comprises the said 2nd car, and a car frame, and is provided with the idea correction apparatus which correct | amends the said car compartment with respect to the said car frame, and corrects the implantation position of the said 2nd car.

Moreover, the elevator apparatus which concerns on this invention is connected so that the 1st and 2nd cars may respectively connect to the both ends of the main rope suspended by the said sheave and the deflector wheel, and when one car lands on the uppermost floor, the other car will land on the lowest floor. The elevator apparatus comprised is provided with the idea correction apparatus arrange | positioned at the main rope connection part of a said 2nd car, and corrects the implantation position of a said 2nd car by adjusting the length of the said main rope.

Furthermore, the elevator apparatus according to the present invention is characterized in that the first car is connected to the end of the sheave side of the main rope suspended in the sheave and the deflector wheel, and the second car is the deflector wheel side of the main rope suspended in the sheave and the deflector wheel. In an elevator device which is connected to an end of the car and is configured such that when the other car lands on the uppermost floor, the other car lands on the lowest floor, wherein the fixed deflector wheel and the movable deflector wheel are connected to the main rope path between the sheave and the deflector wheel. An implantation correcting device arranged on the substrate to correct the implantation position of the second car by adjusting the length of the main rope between the deflector wheel and the second car by approaching and separating the movable deflector wheel with respect to the fixed deflector wheel. It is equipped.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus in which two cars are suspended by 1: 1 roping, and in particular, includes a landing correction device for normally implanting two cars simultaneously. It relates to one elevator device.

1 is a longitudinal sectional view schematically showing the configuration of an elevator apparatus according to a first embodiment according to the present invention;

2 is a system diagram of an elevator apparatus according to a first embodiment of the present invention;

3 is a flowchart illustrating the operation of the elevator apparatus according to the first embodiment of the present invention;

4 is a longitudinal sectional view schematically showing the configuration of an elevator apparatus according to a second embodiment according to the present invention;

5 is a longitudinal sectional view schematically showing the configuration of an elevator apparatus according to a third embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

(First embodiment)

1 is a longitudinal sectional view schematically showing the configuration of an elevator apparatus according to a first embodiment according to the present invention, FIG. 2 is a system diagram of an elevator apparatus according to a first embodiment according to the present invention, and FIG. Is a flowchart illustrating the operation of the elevator apparatus according to the first embodiment.

In FIG. 1, the drive device 3 and the deflector wheel 4 are installed in the machine room 2 configured above the hoistway 1, and the main rope 5 is provided with the sheave 3a of the drive device 3 and It is wound around the deflector wheel 4. In addition, the first car 6 is connected to the sheave side of the main rope 5, and the second car 7 is connected to the deflector wheel side of the main rope 5. And when one car of the 1st car 6 and the 2nd car 7 lands on the uppermost floor, the other car can be implanted on the lowest floor.

The second car 7 is mounted so that the car compartment 7a can be raised and lowered to the car frame 7b. Then, a pantogragh structure 8 is arranged between the bottom of the casing 7a and the car frame 7b. Furthermore, a drive motor 9 for elevating and driving the pantograph structure 8 is attached to the car frame 7b. Therefore, by driving the pantograph structure 8 up and down by the drive motor 9, the cage 7a moves up and down relative to the car frame 7b. Here, the pantograph structure 8 and the drive motor 9 constitute an implantation correction device.

The call button 10 is provided in the boarding point of each floor, and the 1st position detection switch 11 and the 2nd position detection switch 12 are arrange | positioned at the inner wall surface of each floor of the hoistway 1. As shown in FIG. In addition, the first position switch actuating cam 13 and the second position switch actuating cam 14 are arranged in the first car 6 and the second car 7. In addition, the first position switch actuating cam 13 and the second position switch actuating cam 14 are connected to the first position detecting switch 11 and the first position detecting switch 11 when the first car 6 and the second car 7 are in the form of an implantation operation. The second position switches 12 are respectively operated. Here, the second position switch actuating cam 14 is moved up and down in conjunction with the lifting operation of the car chamber 7a with respect to the car frame 7b.

The main control device 15 is arranged in the machine room 2 and has a control unit 16 and a memory 17 as shown in FIG. 2. The main control device 15 drives and drives the drive device 3 based on the car call signal from the call button 10 to drive and lift the first car 6 and the second car 7, Drive control of the drive motor 9 is carried out based on the position signals of the 1st car 6 and the 2nd car 7 from the 1st position detection switch 11 and the 2nd position detection switch 12, and 2nd The implantation position of the car 7 is corrected.

Next, with reference to the flowchart shown in FIG. 3, the operation | movement of the elevator apparatus comprised in this way is demonstrated as operation | movement of the control part 16. FIG. In addition, the data of the distance between the layers is stored in the memory 17 in advance.

The controller 16 controls the first and second cars 6 and 7 based on the position signals of the first and second cars 6 and 7 from the first and second position detection switches 11 and 12. The stop position is recorded in the memory 17. The stop positions of the first and second cars 6 and 7 stored in the memory 17 are the first and second cars 6 and 6 from the first and second position detection switches 11 and 12. It is sequentially updated based on the position signal of 7).

Then, the control unit 16 monitors the car call signal from the call button 10 (step 100), when the call button 10 is pressed, specifies the floor where the car call has occurred, and is stored in the memory 17. From the data of the stop positions of the first and second cars 6 and 7, the short distance car is discriminated from the car call generation floor, and the drive device 3 is driven and controlled so that the short distance car lands on the car call generation floor (step 101). ).

Then, the control unit 16 determines whether the first car 6 has landed on the set idea floor from the first position detection switch 13 in the set idea floor of the first car 6 (step 102). . When the control unit 16 determines that the first car 6 has normally landed on the set idea floor, the drive unit 3 stops driving (step 103).

There, the control part 16 calculates whether it is necessary to correct the implantation position of the 2nd car 7 based on the data of the interlayer distance stored in the memory 17 (step 104). In this step 104, if it is determined that the correction of the position of the second car 7 is not necessary, the process proceeds to step 107 and the second position detection switch 14 in the set idea floor of the second car 7. It is determined whether or not the second car 7 has landed on the set idea floor. And if it is determined in step 107 that the second car 7 has normally landed on the set idea floor, the control unit 16 opens the doors of the first and second cars 6 and 7.

If it is determined in step 107 that the second car 7 does not land on the set idea layer, the flow advances to step 108 to drive the drive motor 9 to lift the pantograph structure 8. Thereby, the cage 7a of the 2nd car 7 raises and lowers. Then, the control unit 16 determines whether or not the second car 7 has landed on the set idea floor from the second position detection switch 14 in the set idea floor of the second car 7 (step 109). . And if it is determined in step 109 that the second car 7 has normally landed on the set idea floor, the controller 16 stops driving of the drive motor 9 (step 110), and the first and second cars. Open the door of (6, 7). In step 109, if it is determined that the second car 7 has not landed on the set idea layer, the flow returns to step 108. These steps 108 to 110 become a step of correcting the misalignment of the second car 7 due to the elongation and extension of the main rope 5 over time.

In step 104, if it is determined that correction of the implantation position of the second car 7 is necessary, the flow advances to step 105, and the second car (based on the data of the interlayer distance stored in the memory 17). The amount of correction of the conception position of 7) is computed. Then, the drive motor 9 is driven (step 106) so that the movement amount of the pantograph structure 8 coincides with this calculated correction amount (step 106). These steps 104 to 106 become a step of correcting the misalignment of the second car 7 due to the difference in the interlayer distance or the uneven interlayer distance.

In addition, since the car call generation by the car destination buttons (not shown) provided in the 1st and 2nd cars 6 and 7 operate similarly, it abbreviate | omits here.

As described above, according to the first embodiment, since the conception correction device made up of the pantograph structure 8 and the drive motor 9 is arranged in the second car 7, the first car 6 normally lands. Even when an implantation shift occurs in the second car 7, the implantation shift of the second car 7 is quickly corrected by the idea correction device, thereby simultaneously opening the doors of the first and second cars 6 and 7. Can be opened. Therefore, even when the main rope 5 is stretched or contracted due to elongation or load of the main rope 5 over time, even when the interlayer distances are different or when the interlayer distances are not more than three stops, the first and the second The cars 6 and 7 can be conceived normally and at the same time the door can be opened, and the service can be improved.

In addition, since the elevator apparatus according to the first embodiment has a 1: 1 roping system, the structure is simple, and the cost can be reduced. Furthermore, since the idea correction device is provided only in the second car 7, the number of idea correction devices is one, so that the price can be reduced.

In addition, the control unit 16 of the main control device 15 drives and controls the drive device 3 so that the first car 6 is normally implanted on the set idea floor, and the second car 7 is controlled on the set idea floor. Since the pantograph structure 8 and the drive motor 9 are driven to be normally implanted, even if expansion and contraction occur due to elongation or load of the main rope 5 over time, the first displacement is not caused. And the second cars 6, 7 can be imaged at about the same time, and the door can be opened at the same time.

In addition, the interlayer distance is stored in the memory 17, and the control unit 16 stores in the memory 17 an idea of displacement occurring in the second car 7 when the first car 6 is normally implanted. Since the pantograph structure 8 and the drive motor 9 are driven to be calculated based on the data of the interlayer distances present and to correct the calculated amount of misalignment, even when three or more stops having different interlayer distances are used, The first and second cars 6 and 7 can be imaged at about the same time without generating them, and the door can be opened at the same time.

In the first embodiment, data of the interlayer distances stored in the memory 17 may be corrected based on the amount of correction of the idea of the deviation of the implantation obtained in the correction process of the implantation deviation of steps 108 to 110. In such a case, since the data of the interlayer distance stored in the memory 17 is updated at the time when the main rope 5 is stretched or contracted due to elongation or load of the main rope 5 over time, the main rope 5 Occurrence of the frost-off of the 2nd car 7 resulting from expansion and contraction is suppressed.

In addition, in the said 1st Example, although it demonstrates to perform the process of correct | amendment of the implantation shift | offset | difference resulting from the difference of the interlayer distance in step 104-step 106 after the 1st car 6 has been implanted normally, this implantation shift | offset | difference is demonstrated. May be performed before the lifting operation of the first and second cars 6 and 7 or during the lifting operation.

(Second embodiment)

4 is a longitudinal sectional view schematically showing the configuration of an elevator apparatus according to a second embodiment according to the present invention.

In Fig. 4, in the second car 7A, the car chamber 7a is fixed to the car frame 7b, and the electric winch 20 as the idea correction device is the main rope of the second car 7A. It is arranged in the connection part.

In addition, the other structure is comprised similarly to the said 1st Example.

Also in this second embodiment, it operates based on the flowchart shown in FIG. And a control part in the correction | amendment process of the implantation shift | offset | difference resulting from the expansion | contraction of the main rope 7 in step 108-110, and the correction | amendment correction of the shift | offset | difference of implantation resulting from the difference of the interlayer distance in step 104-step106, The driving control of the electric winch 20 causes the main rope 5 to be wound or unwound to correct the idea of misalignment of the second car 7A.

Therefore, also in this second embodiment, the same effects as in the first embodiment can be obtained.

In this second embodiment, since the electric winch 20 is used as the concept of the correction device and the electric winch 20 is disposed at the main rope connection portion of the second car 7A, the second car 7A is used. The correction amount can be increased, and a wide range of idea correction can be coped. In addition, it is not necessary to constitute the car frame 7a so that the car frame 7b can be raised and lowered as in the first embodiment, and the second car 7A can be made simple. That is, a car having the same structure as that of the first car 6 can be used as the second car 7A.

(Third embodiment)

5 is a longitudinal sectional view schematically showing the configuration of an elevator apparatus according to a third embodiment of the present invention.

In FIG. 5, the fixed deflector wheel 21 is arranged in the machine room 2 in close proximity to the deflector wheel 4 so as to match the axis of the rotation axis with the axis of the rotation axis of the deflector wheel 4. Moreover, the movable deflector wheel 22 is arrange | positioned in the machine room 2 so that the axial center of a rotating shaft may be parallel to the axial center of the rotating shaft of the fixed deflector wheel 21, and is accessible and detachable with respect to the fixed deflector wheel 21. As shown in FIG. Moreover, the hydraulic jack 23 as a movable deflector wheel drive part is provided in the machine room 2, and the movable deflector wheel 22 can be approached and separated from the fixed deflector wheel 21. As shown in FIG. Here, the fixed deflector wheel 21, the movable deflector wheel 22, and the hydraulic jack 23 comprise the implantation correction apparatus. Then, the main rope 5 is connected to the first car 6, ascends, is caught by the sheave 3a, and is sequentially applied to the fixed deflector wheel 21, the movable deflector wheel 22 and the deflector wheel 4 in sequence. After being caught, it descends and is connected to the second car 7A. That is, the fixed deflector wheel 21 and the movable deflector wheel 22 are disposed on the path of the main rope 5 between the sheave 3a and the deflector wheel 4.

In addition, the other structure is comprised similarly to the said 2nd Example.

Also in this third embodiment, it operates based on the flowchart shown in FIG. And a control part in the correction | amendment process of the implantation shift | offset | difference resulting from the expansion | contraction of the main rope 7 in step 108-110, and the correction | amendment correction of the shift | offset | difference of implantation resulting from the difference of the interlayer distance in step 104-step106, The driving control of the hydraulic jack 23 causes the movable deflector wheel 22 to move toward or separate from the deflector wheel 4 and the fixed deflector wheel 21, so that the second car 7A is implanted. The deviation is corrected.

Therefore, also in this third embodiment, the same effects as in the second embodiment can be obtained.

In addition, in this third embodiment, since the idea correction device is provided in the machine room 2, it is not necessary to make the second car 7A a special structure, and the weight of the second car 7A becomes lighter. The occurrence of expansion and contraction of the main rope 5 due to the load can be suppressed.

Moreover, since the pair of the fixed deflector wheel 21 and the movable deflector wheel 22 is arrange | positioned on the main rope path | route between the sheave 3a and the deflector wheel 4, the roping ratio becomes large and the movable deflector wheel 22 With a small amount of movement, a wide range of idea correction can be performed.

In the third embodiment, although the number of pairs of the fixed deflector wheel 21 and the movable deflector wheel 22 is described as a pair, the pair of the fixed deflector wheel 21 and the movable deflector wheel 22 is referred to as a sieve ( A plurality of pairs may be arranged on the main rope path between 3a) and the deflector wheel 4. In this case, the roping ratio becomes even larger, which can cope with a wider range of implantation corrections.

In addition, although the said 3rd Example demonstrated as using the hydraulic jack 23 as a movable deflector wheel drive part, the movable deflector wheel drive part is not limited to the hydraulic jack 23, The movable deflector wheel 22 is used. What is necessary is just to be able to approach and isolate | separate from the fixed deflector wheel 21, For example, you may use the electric motor and the mechanism which converts the rotational torque of this electric motor into linear movement force.

Moreover, in the said 1st and 2nd Example, the car top connected to the sheave 3a side of the main rope 5 is normally implanted, and the shifting of a thought generated in the car connected to the deflector wheel 4 side of the main rope 5 is carried out. However, although the car connected to the deflector wheel side of the main rope 5 may be normally imaged, the misalignment occurring in the car connected to the sheave side of the main rope 5 may be corrected.

As described above, the elevator device according to the present invention can be normally placed on both cars connected to both ends of the main rope at the same time, it is useful as an elevator device that can improve the service.

Claims (6)

When the sheave and the deflector wheel of the drive device are arranged in the upper part of the hoistway, the first and the second car are connected to both ends of the main rope suspended on the sheave and the deflector wheel, respectively, when one car lands on the top floor, In the elevator apparatus which is comprised so that a car may land on the lowest floor, An idea correction device disposed between the car compartment and the car frame constituting the second car, and having the car compartment lifted with respect to the car frame to correct the implantation position of the second car. Elevator device. The sheave and the deflector wheel of the drive device are arranged on the upper part of the hoistway, and the first car and the second car are connected to both ends of the main rope suspended on the sheave and the deflector wheel, and when one car lands on the top floor, the other car In the elevator apparatus which is comprised so that it may land on the lowest floor, The second car is disposed in the main rope connection portion, characterized in that it comprises an idea correction device for correcting the implantation position of the second car by adjusting the length of the main rope Elevator device. A sheave and a deflector wheel of a drive device are arranged on the upper part of the hoistway, and a first car is connected to the end of the sheave side of the main rope suspended on the sheave and the deflector wheel, and a second car is suspended on the sheave and the deflector wheel. In the elevator apparatus connected to the end of the said deflector wheel side of a rope, and when one car lands on the uppermost floor, the other car lands on the lowest floor, A fixed deflector wheel and a movable deflector wheel are disposed on the main rope path between the sheave and the deflector wheel, and the movable deflector wheel is approached and separated from the fixed deflector wheel so that the main rope between the deflector wheel and the second car. And an implantation correction device for correcting the implantation position of the second car by adjusting the length of the second car. Elevator device. The method of claim 3, wherein A plurality of pairs of the fixed deflector wheel and the movable deflector wheel are arranged on the main rope path between the sheave and the deflector wheel. Elevator device. The method according to any one of claims 1 to 4, Based on the occurrence of the car call registration, the idea of setting the idea floor of the first car and the second car, and controlling the driving device so that the idea of the idea of the idea of the first car on the floor of the setting car, the idea And a main control device having a control unit for controlling the drive of the idea correction device so that the second car lands on the set idea floor. Elevator device. The method of claim 5, wherein The main control apparatus includes a memory in which interlayer distance data is stored, and the control unit stores in the memory a deviation of an idea generated in the second car due to the interlayer distance when the first car is placed on a set idea floor. Characterized in that it is configured to drive based on the inter-layer distance data and drive control of the idea of correction for correcting the calculated idea of deviation. Elevator device.