KR20140035485A

KR20140035485A - Double-deck elevator

Info

Publication number: KR20140035485A
Application number: KR1020147000492A
Authority: KR
Inventors: 다카오 니시다
Original assignee: 미쓰비시덴키 가부시키가이샤
Priority date: 2011-06-27
Filing date: 2011-06-27
Publication date: 2014-03-21
Also published as: WO2013001587A1; CN103619746A; CN103619746B; JP5693723B2; JPWO2013001587A1; KR101494583B1; DE112011105384T5

Abstract

In the double-deck elevator, the upper car and the lower car arranged below the upper car can be moved in and out of the main frame which can move up and down inside the hoistway. The upper position of the main frame has a drive sheave for adjusting the car position, and a car position adjusting drive device for generating a driving force for moving the upper car and the lower car to move. The upper car includes a first upper car suspending sheave and a second upper car suspending sheave, and the lower car includes a first lower car suspending sheave and a second lower car suspending sheave. An upper car side return sheave and a lower car side return sheave are provided at the top of the mainframe, respectively. The upper car and the lower car are suspended from the mainframe by a suspension positioning body for car positioning having one end and the other end connected to the upper part of the mainframe. Suspension body for positioning the car from the one end, the first upper car suspension sheave, the upper car side return sheave, the second upper car suspension sheave, the car positioning drive sheave, the first lower elevator It winds up in order of a car suspension sheave, a lower car side return sheave, and a 2nd lower car suspension sheave, and reaches the other end.

Description

Double-Deck Elevator {DOUBLE-DECK ELEVATOR}

The present invention relates to a double-deck elevator capable of adjusting the distance between the upper car and the lower car.

Conventionally, in order to adjust the space | interval between an upper car and a lower car, the rope which hangs an upper car and a lower car is wound around the drive sheave of the hoisting machine for car position adjustment provided in the mainframe, By rotating the drive sheave, a double-deck elevator is known which causes the upper car and the lower car to move up and down relative to the mainframe. One end and the other end of the rope are respectively connected to the upper part of the main frame. The rope is wound around the suspending sheave of the upper car between the drive sheave and one end of the rope, and wound around the suspending sheave of the lower car between the driving sheave and the other end of the rope. Therefore, the hawk-like system of the upper car and the lower car by a rope is a 2: 1 roping system (refer patent documents 1 and 2).

[Patent Document 1] Japanese Patent Application Laid-Open No. 2007-331871 [Patent Document 2] Japanese Patent Application Laid-Open No. 2000-309482

However, when the occupancy of the upper car and the lower car increases with the increase in the capacity of the elevator, the load applied to the hoist for car position adjustment increases, and the hoist for car position adjustment becomes large. As a result, the entire double-deck elevator becomes larger and the cost increases.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain a double-deck elevator capable of suppressing an increase in size and an increase in cost even when the occupancy of the upper car and the lower car increases.

The double-deck elevator according to the present invention includes a main frame capable of elevating the hoistway, an upper car capable of moving up and down inside the main frame, and a lower car capable of moving up and down, located inside the main frame. , A car position adjusting drive sheave, which is provided on the upper part of the main frame, generates a driving force for driving the upper car and the lower car, and a first upper elevator provided on the upper car, respectively. Car suspending sheave and second upper car suspending sheave, the first lower car suspending sheave and the second lower car suspending sheave respectively provided in the lower car, the upper each provided in the upper part of the mainframe Elevator side return sheave and lower elli It has one end and the other end connected to the upper side of the eater-side return sheave and the main frame, respectively, the first upper car suspension sheave from the one end, the upper car side return sheave, the second upper car suspension Sheave, driving sheave for positioning car, first lower car suspension sheave, lower car side return sheave and second lower car suspending sheave It is equipped with a suspension body for adjusting the car position that suspends the lower car to the mainframe.

In the double-deck elevator according to the present invention, the suspended car body for suspending the upper car and the lower car has one end and the other end connected to the upper part of the main frame, respectively, the first upper part from one end part. Car Suspension Sheave, Upper Car Side Return Sheave, Second Upper Car Suspension Sheave, Drive Positioning Sheave, First Lower Car Suspension Sheave, Lower Car Side Sheave and Second Since it is wound in the order of the lower car suspending sheaves and reaches the other end, the load on the driving device for adjusting the position of the car can be reduced even if the occupancy of the upper car and the lower car increases. Thereby, enlargement of the drive device for cage position adjustment by the increase of the ride capacity of an upper car and a lower car can be suppressed, and the enlargement of the whole double-deck elevator can be suppressed. Moreover, since the enlargement of the drive apparatus for car position adjustment can be suppressed, increase of cost can also be suppressed.

1 is a configuration diagram showing a double-deck elevator according to Embodiment 1 of the present invention.
2 is a sectional view taken along the line II-II in Fig.
3 is a sectional view taken along the line III-III in Fig.
4 is a cross-sectional view taken along line IV-IV of FIG. 1.
5 is a cross-sectional view taken along line VV of FIG. 1.
6 is a cross-sectional view taken along the line VI-VI of FIG. 1.
FIG. 7 is an enlarged view illustrating part VII of FIG. 4.
FIG. 8: is a top view which shows a part of lower part of the lower car of FIG.
FIG. 9 is a side view illustrating a part of a lower portion of the lower car of FIG. 7.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Embodiment 1

1 is a configuration diagram showing a double-deck elevator according to Embodiment 1 of the present invention. 2 is a cross-sectional view taken along the line II-II of FIG. 1, FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 1, FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG. 1, FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. 1. In the drawing, a hoisting machine (main drive device) 2 having a main drive sheave 2a and a deflecting sheave 3 arranged away from the main drive sheave 2a are provided at the upper part of the hoistway 1. have. The main drive sheave 2a and the deflecting sheave 3 are wound with a plurality of main ropes (for example, ropes and belts) 4. On the main rope 4, the car device 5 and the balance weight 6 which can elevate the inside of the hoistway 1 are suspended. The car device 5 is connected to one end of the main rope 4, and the balance weight 6 is connected to the other end of the main rope 4. Therefore, the resembling method of the car apparatus 5 and the counterweight 6 by the main rope 4 is a 1: 1 roping system.

In the hoistway 1, a pair of car device guide rails for guiding the lifting and lowering of the car device 5 and a pair of counterweight guide rails for guiding the lifting and lowering of the counterweight 6 are provided (both not shown). ). When the main drive sheave 2a is rotated by the driving force of the hoist 2, the car device 5 is lifted while being guided to each car guide rail, and the counterweight 6 is guided to each balance weight guide rail. do.

The car device 5 includes a main frame 7 connected to the main rope 4, an upper car 8 which can be moved inside the main frame 7, and an upper part inside the main frame 7. It is arrange | positioned under the car 8, and has the lower car 9 which can be moved. The upper car 8 and the lower car 9 are arranged inside the main frame 7 so that their respective width directions coincide with the width direction of the car device 5.

The main frame 7 is arranged above the pair of vertical frames 10 and the upper car 8, and the upper beam (11) fixed horizontally between the upper end of each vertical frame (10) And a lower beam 12 disposed below the lower car 9 and fixed horizontally between the lower ends of the vertical frames 10, and the upper car 8 and the lower car 9; It has an intermediate beam 13 arrange | positioned in between and fixed horizontally between the intermediate part of each vertical frame 10. As shown in FIG. The main rope 4 is connected to the upper beam 11.

The mainframe 7 guides a pair of upper car guide rails (guide rails for elevator car position adjustment) 14 for guiding the shanghai dong of the upper car 8 and the shanghai dong of the lower car 9. A pair of lower car guide rails (elevator car position guide rails) 15 is fixed. Each upper car guide rail 14 is arranged on both sides of the upper car 8 with respect to the width direction of the upper car 8. Each lower car guide rail 15 is disposed on both sides of the lower car 9 with respect to the width direction of the lower car 9.

On the upper part of the upper beam 11 (that is, the upper part of the main frame 7), the driving device 16 for adjusting the position of the car which generates a driving force for moving the upper car 8 and the lower car 9 is moved. It is prepared. The car position adjusting drive device 16 has a car position adjusting drive sheave 17. The car position adjusting drive sheave 17 is rotated by the driving force of the car position adjusting drive device 16. The rotary shaft of the car positioning drive sheave 17 is parallel to the depth direction of the upper car 8 and the lower car 9.

In the upper part of the upper car 8, as shown in FIG. 5, the pair of 1st upper car suspending sheaves 18 and the upper elevator which are arrange | positioned apart from each other in the width direction of the upper car 8, A pair of second upper car suspending sheaves 19 are arranged which are spaced apart from each other in the width direction of the compartment 8. Each rotating shaft of each of the first upper car suspending sheaves 18 and the second upper car suspending sheaves 19 is disposed along the depth direction of the upper car 8.

As shown in FIG. 5, the first upper car suspending sheave 18 and the second upper car suspending sheave 19 move the vertical projection surface of the hoistway 1 (that is, the hoistway 1 up and down). In the horizontal plane when projecting along the direction), the straight lines A connecting the upper car guide rails 14 are disposed therebetween. In this example, a first upper car suspending sheave 18 and a second upper car suspending sheave 19 extend between each upper car guide rail 14 within a vertical projection surface of the hoistway 1. The connecting lines A are arranged at symmetrical positions.

As shown in FIG. 6, a pair of first lower car suspending sheaves 20 and a lower elevator are disposed below the lower car 9 in the width direction of the lower car 9. A pair of second lower car suspending sheaves 21 are arranged that are spaced apart from each other in the width direction of the compartment 9. Each axis of rotation of each of the first lower car suspending sheaves 20 and the second lower car suspending sheaves 21 is arranged along the depth direction of the lower car 9.

As shown in FIG. 6, the first lower car suspension sheave 20 and the second lower car suspension sheave 21 are each lower car guide rails in a vertical projection surface of the hoistway 1. It is arrange | positioned with the straight line B which connects between (15). In this example, the first lower car suspending sheave 20 and the second lower car suspending sheave 21 are arranged between the lower car guide rails 15 in a vertical projection surface of the hoistway 1. It is arrange | positioned in the symmetrical position with respect to the straight line B which connect | connects.

As shown in FIG. 1, the upper beam 11 (upper part of the main frame 7) is equipped with the upper car side return sheave 22 and the lower car side return sheave 23, respectively. Each of the rotary shafts of the upper car side return sheave 22 and the lower car side return sheave 23 is arranged along the width direction of the car device 5.

The upper car 8 and the lower car 9 are suspended with respect to the main frame 7 by a car positioning rope (elevating suspension body for elevator car positioning) 24. In addition, the suspending body for adjusting the car position which suspends the upper car 8 and the lower car 9 may be a belt. The first rope stopper 25 and the second rope stopper 26 are provided on the upper beam 11 (upper part of the main frame 7). The car position adjusting rope 24 is connected to the upper beam 11 through one end 24a connected to the upper beam 11 through the first rope stopping device 25 and the second rope stopping device 26. It has the other end part 24b connected.

The car position adjusting rope 24 is each of the first upper car suspending sheaves 18, the upper car side return sheaves 22, and the second upper car suspending sheaves from one end 24a. 19), drive sheave 17 for car position adjustment, each first lower car suspending sheave 20, lower car side return sheave 23, each second lower car suspending sheave 21 It is wound in the order of and reaches the other end part 24b. In other words, the upper car 8 and the lower car 9 by the car positioning rope 24 have a 4: 1 roping system. In the upper car 8 and the lower car 9, the distance between the upper car 8 and the lower car 9 is changed by rotating the driving sheave 17 for positioning the car. In each direction.

The upper car 8 has an upper car frame 27 and an upper car room 28 supported by the upper car frame 27 and surrounded by the upper car frame 27. Each first upper car suspending sheave 18 and each second upper car suspending sheave 19 is provided above the upper car frame 27.

The lower car 9 has a lower car frame 29 and a lower car room 30 supported by the lower car frame 29 and surrounded by the lower car frame 29. Each first lower car suspending sheave 20 and each second lower car suspending sheave 21 is provided below the lower car frame 29.

A pair of upper elevators that apply a braking force to the upper car 8 by holding the upper car guide rails 14 at the lower portion of the upper car frame 27 (lower portion of the upper car 8). The emergency stop part 31 for a compartment is provided. As shown in FIG. 5, the emergency stop portion 31 for the upper car is disposed on a straight line A connecting the upper car guide rails 14 in the vertical projection surface of the hoistway 1.

A pair of lower elevators that apply braking force to the lower car 9 by gripping each lower car guide rail 15 to the lower part of the lower car frame 29 (lower of the lower car 9). The emergency stop 32 for a compartment is provided. As shown in FIG. 6, the emergency stop 32 for the lower car is the first lower car suspending sheave 20 and the second lower car suspending sheave within the vertical projection surface of the hoistway 1. It is arrange | positioned between 21, and is arrange | positioned on the straight line B which connects between each lower car guide rail 15. As shown in FIG.

FIG. 7 is an enlarged view illustrating part VII of FIG. 4. 8 is a top view which shows a part of lower part of the lower car 9 of FIG. 7, and FIG. 9 is a side view which shows a part of the lower part of the lower car 9 of FIG. In the figure, the emergency stop 32 for the lower car is disposed between the first lower car suspending sheave 20 and the second lower car suspending sheave 21 with respect to the horizontal direction. Further, the emergency stop 32 for the lower car is provided with a pair of guides 33 arranged on both sides of the lower car guide rail 15 in the horizontal direction, and each of the guides 33 and the lower elevator. Elastic springs disposed between the guides 33, avoiding the pair of wedges (braking members) 34 and the lower car guide rails 15 disposed between the guide rails 15. Has 35

Each guide part 33 is rotatable about an axis along the lower car guide rail 15, respectively. The distance between one end of each guide part 33 is increased by rotating each guide part 33 in a direction in which the distance between the other ends of each guide part 33 becomes smaller, and the other of each guide part 33 is increased. Each guide part 33 rotates in the direction in which the distance between end parts becomes large, and becomes small. The lower car guide rail 15 passes between the one end of each guide part 33, and each wedge 34 is arrange | positioned. An elastic spring 35 is disposed between the other ends of the guides 33.

Each guide portion 33 is provided with an inclined portion which is inclined while the distance from the lower car guide rail 15 is extended downward. The wedge 34 is arrange | positioned between the inclination part of the guide part 33, and the lower car guide rail 15. As shown in FIG.

The wedge 34 is guided along the inclined portion of the guide portion 33 and is displaceable in the vertical direction with respect to the lower car 9. Each wedge 34 contacts the lower car guide rail 15 by upward displacement with respect to the lower car 9, and the lower car guide by downward displacement with respect to the lower car 9. Depart from the rail 15. When each wedge 34 contacts the lower car guide rail 15 when the lower car 9 is moving downwards, each wedge 34 determines the distance between one end of each guide 33. While widening, it is bitten in between each of each guide part 33 and the lower car guide rail 15. As shown in FIG.

The elastic spring 35 is in a state of natural length not being stretched when each wedge 34 is separated from the lower car guide rail 15. In addition, when the wedge 34 is seized between each of the guide portions 33 and the lower car guide rail 15 and the one end of each guide portion 33 is widened, It contracts by displacement of the other ends of the guide part 33, and produces | generates an elastic repulsive force. Thereby, each wedge 34 is pushed from both sides to the lower car guide rail 15, and the lower car guide rail 15 is gripped. The emergency stop 32 for the lower car imparts a braking force by holding the lower car guide rail 15 by each wedge 34.

The configuration of the emergency stop 31 for the upper car is the same as that of the emergency stop 32 for the lower car. The upper car emergency stop 31 applies a braking force to the upper car 8 by holding the upper car guide rail 14 with each wedge of the upper car emergency stop 31.

The upper stop emergency stop part 31 is provided with the upper elevator operating lever (not shown) which displaces the wedge of the upper stop emergency stop part 31 in an up-down direction. The lower stop emergency stop 32 for cars is provided with an operating lever (not shown) for the lower car that displaces the wedge 34 in the vertical direction. Between the operating lever for the upper car and the operating lever for the lower car, when the upper car 8 and the lower car 9 are displaced downward simultaneously with respect to the mainframe 7, the operating lever for the upper car and the lower car are operated. Emergency stop operation apparatus (not shown) which operates a lever is provided. The emergency stop unit 31 for the upper car and the emergency stop unit 32 for the lower car are operated by operation of the operating lever for the upper car and the operating lever for the lower car by the emergency stop operating device, respectively.

Next, the operation will be described. The car device 5 and the counterweight 6 are lifted in the hoistway 1 by the driving force of the hoist 2. Although the upper car 8 and the lower car 9 are simultaneously implanted on the floors adjacent to the upper and lower floors, the floor spacing of the building is not necessarily constant, and there may be a difference between floors.

In this case, the upper car 8 and the lower car 9 are lifted with respect to the main frame 7 by the driving force of the drive device 16 for adjusting the car position, and the upper car 8 and the lower car. The spacing between (9) is adjusted according to the layer spacing. That is, as the upper car 8 rises and the lower car 9 descends, the distance between the upper car 8 and the lower car 9 expands. Moreover, when the upper car 8 descends and the lower car 9 raises, the space | interval between the upper car 8 and the lower car 9 reduces.

For example, when the car positioning rope 24 is broken, each of the upper car 8 and the lower car 9 is displaced downward by gravity. When each of the upper car 8 and the lower car 9 is displaced downward, each of the emergency stop 31 for the upper car and the emergency stop 32 for the lower car is operated, and the upper car ( 8) and the lower car 9 are provided with braking force. This prevents the upper car 8 and the lower car 9 from falling.

In such a double-deck elevator, the upper car 8 and the lower car 9 are suspended by the car positioning rope 24 with respect to the mainframe 7 and on the car positioning rope 24. Since the upper car 8 and the lower car 9 are similar to each other in a 4: 1 roping system, even if the occupancy of the upper car 8 and the lower car 9 increases, the position of the car is adjusted. The load on the drive device 16 can be reduced. Thereby, the enlargement of the drive position adjusting drive device 16 by the increase of the ride capacity of the upper car 8 and the lower car 9 can be suppressed, and the enlargement of the whole double-deck elevator is suppressed. can do. Moreover, since the enlargement of the drive device 16 for cage position adjustment can be suppressed, increase of cost can also be suppressed.

In addition, in the vertical projection surface of the hoistway 1, the first upper car suspending sheave 18 and the second upper car suspending sheave 19 connect between each upper car guide rail 14. In addition, the emergency stop portion 31 for the upper car is disposed on the straight line A, and the first lower car suspending sheave 20 and the second lower elevator are arranged on the straight line A. The car suspending sheave 21 is arranged with a straight line B connecting each lower car guide rail 15 therebetween, and the emergency stop 32 for the lower car has a straight line B shape. Since the center of gravity of the emergency stop 31 for the upper car and the center of suspension of the upper car 8 can be matched with each other, the emergency stop 32 for the lower car can Center of gravity and lower car (9) You can match the center of similarity. This makes it possible to reduce the unloading load that each of the upper car guide rail 14 and the lower car guide rail 15 receives from the upper car 8 and the lower car 9, so that the upper car The strength of the guide rail 14 and the lower car guide rail 15 can be made small. As a result, the upper car guide rail 14 and the lower car guide rail 15 can be reduced in weight, and the cost of the double-deck elevator can be reduced.

In the above example, the car positioning driver 16 is provided above the upper beam 11, but the car positioning driver 16 may be provided below the upper beam 11.

In the above example, although the first upper car suspension sheave 18 and the second upper car suspending sheave 19 are provided above the upper car 8, the first upper car suspension sheave The suspending sheave 18 and the second upper car suspending sheave 19 may be provided below the upper car 8.

In the above example, although the first lower car suspension sheave 20 and the second lower car suspending sheave 21 are provided below the lower car 9, the first lower car suspension sheave 20 is provided. The suspending sheave 20 and the second lower car suspending sheave 21 may be provided above the lower car 9.

1 hoistway, 7 mainframes,
8 upper car, 9 lower car,
14 Upper car guide rail (elevator car positioning guide rail),
15 Lower car guide rail (elevator car positioning guide rail),
16 car positioning drive,
17 Drive sheave for adjusting car position,
18 first upper car suspending sheave,
19 second upper car suspending sheave,
20 first lower car suspending sheave,
21 second lower car suspending sheave,
22 Return sheave on the upper car side, 23 Return sheave on the lower car side,
24 car positioning rope (suspension body for elevator car positioning),
24a one end, 24b the other end,
31 Emergency stop for upper car, 32 Emergency stop for lower car.

Claims

Mainframes that can be elevated in the hoistway,
An upper car capable of moving up and down inside the mainframe,
A lower car which is disposed below the upper car inside the main frame and is movable;
A car position adjusting drive device having a car position adjusting drive sheave provided on an upper portion of the main frame and generating a driving force for moving the upper car and the lower car;
A first upper car suspending sheave and a second upper car suspending sheave respectively provided in the upper car,
A first lower car suspending sheave and a second lower car suspending sheave respectively provided in the lower car,
An upper car side return sheave and a lower car side return sheave provided at an upper portion of the main frame, and
One end and the other end connected to the upper part of the main frame, respectively, the first upper car suspension sheave, the upper car side return sheave, the second upper car suspension sheave from the one end , The drive sheave for adjusting the car position, the first lower car suspending sheave, the lower car side return sheave and the second lower car suspending sheave in the order of the other end, And a suspension body for suspending the car to suspend the upper car and the lower car with respect to the main frame.

The method according to claim 1,
A pair of guide rails for adjusting the position of the car, which is fixed to the main frame in the state of being disposed on both sides of the upper car and the lower car, and guides the shanghai of the upper car and the lower car;
An emergency stop portion for an upper car provided in the upper car and providing a braking force to the upper car by holding the guide rails for positioning the car;
It is provided in the lower car, and further comprising an emergency stop for the lower car for imparting a braking force to the lower car by holding the guide rail for positioning the car,
The first upper car suspending sheave and the second upper car suspending sheave is arranged with a straight line between each guide car for positioning guide rail within the vertical projection surface of the hoistway,
The first lower car suspending sheave and the second lower car suspending sheave are arranged with a straight line between the guide rails for positioning the car within the vertical projection surface of the hoistway,
And the emergency stop for the upper car and the emergency stop for the lower car are respectively disposed on a straight line between the guide rails for positioning the car in a vertical projection surface of the hoistway.