WO2004041703A1

WO2004041703A1 - Elevator equipment

Info

Publication number: WO2004041703A1
Application number: PCT/JP2002/011614
Authority: WO
Inventors: Shigeki Yamakawa; Susumu Morita
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2002-11-07
Filing date: 2002-11-07
Publication date: 2004-05-21
Also published as: EP1571113B1; DE60238146D1; JPWO2004041703A1; EP1571113A4; EP1571113A1; KR20040068178A

Abstract

Elevator equipment, wherein a pair of support beams are fixed to the inside upper part of a hoistway apart a specified distance from each other, a machine table for supporting a drive device and a deflector wheel is fixed onto the support beams, the drive device is disposed at the lower part of the machine table so as to be positioned between the support beams, and a main rope is wound on a drive sheave and the deflector wheel by a double-wrapping system.

Description

Description Elevator equipment Technical field

The present invention relates to an elevator apparatus in which a driving device for raising and lowering a car and a counterweight is arranged at an upper portion in a hoistway. Background art

For example, in the conventional elevator apparatus disclosed in Japanese Patent Application Laid-Open No. 7-144857, a driving device is fixed to a mounting beam fixed to a top in a hoistway. The mounting beam is fixed to the wall or ceiling of the hoistway. The drive unit has a drive sheave, and a car and a counterweight are suspended by a main rope wound around the drive sheave.

However, in the conventional elevator system, the car cannot be hung at the center of the upper part of the car because the driving device is not arranged in the center of the hoistway. The main rope was wound around these cars. For this reason, the overall layout is complicated, for example, the length of the route for arranging the main ropes becomes longer, and it is necessary to arrange a plurality of car suspension vehicles obliquely with respect to the car. Disclosure of the invention

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator apparatus in which a car can be hung at a center of an upper portion thereof and a layout can be simplified. I do.

The elevator apparatus according to the present invention has a hoistway, a rotatable drive sheave, and a drive device arranged at an upper part in the hoistway, and a rotatable mechanism arranged at an upper part in the hoistway. Equipped with a trolling vehicle, a driving sheave, a main rope wound around the deflecting vehicle, and a car and a counterweight suspended from the hoistway by the main rope and raised and lowered by the driving force of the driving device; At the top of the road, a pair of support beams are fixed at a distance from each other A drive unit and a machine base supporting the deflector are fixed on the support beam, and the drive unit is arranged below the machine base so as to be located between the support beams. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view showing an elevator apparatus according to Embodiment 1 of the present invention, FIG. 2 is a plan view showing the elevator apparatus of FIG. 1,

FIG. 3 is a side view showing the same state of the elevator apparatus shown in FIG. 1 during maintenance work, and FIG. 4 is a perspective view showing the elevator apparatus according to Embodiment 2 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

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

Embodiment 1

FIG. 1 is a perspective view showing an elevator apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a plan view showing the elevator apparatus of FIG.

In the figure, a pair of support beams 2 extending horizontally in the depth direction of the hoistway 1 (the left-right direction in FIG. 2) are fixed at an upper portion in the hoistway 1 at intervals in parallel with each other. The wall la of the hoistway 1 is provided with a plurality of beam receiving portions 1b that support both ends of the support beam 2. The beam receiving portion 1b protrudes from the wall portion 1a, and both ends of the support beam 2 are fixed to the upper surface of the beam receiving portion lb.

On the support beam 2, a machine base 3 is fixed. The machine base 3 is provided with a pair of short frames 4 arranged at intervals in the longitudinal direction of the support beams 2 and installed between the support beams 2, and fixed between these short frames 4 and parallel to the support beams 2. And a pair of long frames 5 extending therefrom. The machine base 3 supports a drive device (hoist) 6. The driving device 6 includes a driving device main body 7 including a motor and a brake unit, and a driving sheave 8 rotated by the driving device main body 7. Further, the driving device 6 is disposed below the machine base 3 so as to be located between the support beams 2. Specifically, the drive device main body 7 is fixed to the lower surface of the long frame 5. The lower end of the driving device 6 is located below the support beam 2. Further, a rotatable deflector 9 is supported on the machine base 3. The deflecting wheel 9 is disposed above the machine base 3 so as to be positioned diagonally above the drive sheave 8. A plurality of vibration isolating members 10 (for example, rubber rubber) for reducing vibration of the driving device 6 transmitted to the supporting beam 2 are interposed between the supporting beam 2 and the machine base 3. .

A plurality of main cables 11 are wound around the drive sheave 8 and the deflector wheel 9 in a double wrap system (full wrap system). A car 12 is suspended from one end of the main rope 11. A counterweight 13 is suspended from the other end of the main rope 11. That is, the car 12 and the counterweight 13 are suspended in the hoistway 1 by the one-by-one bing method.

In the hoistway 1, a pair of car guide rails 14 for guiding the elevator of the car 12 and a pair of counterweight guide rails 15 for guiding the lifting of the counterweight 13 are provided. . A control panel 16 for controlling the driving of the driving device 6 is attached to one of the car guide rails 14.

A drive device maintenance space and a control panel maintenance space for performing maintenance work on the drive device 6 and the control panel 16 are secured around the drive device 6 and the control panel 16. The control panel 16 is arranged such that the control panel maintenance space is lower than the drive device maintenance space. That is, the control panel 16 is arranged so that the control panel maintenance space does not interfere with the drive device maintenance space.

Next, FIG. 3 is a side view showing the same state of the elevator apparatus as in FIG. 1 during maintenance work. At the time of maintenance work, a worker rides on the car 12 and performs maintenance work on the drive device 6 from the car 12. In addition, maintenance work on the control panel 16 is performed from above the car 12 by slightly lowering the car 12 from the position shown in FIG.

In such an elevator system, that is, a machine room-less elevator system, a pair of support beams 2 is fixed to the upper part of the hoistway 1, and a driving device 6 and a deflector 9 are mounted on the support beams 2. The supporting machine base 3 is fixed, and the driving device 6 is arranged at the lower part of the machine base 3 so as to be located between the supporting beams 2.Therefore, the driving device 6 is located almost at the center of the hoistway 1 in the vertical projection plane. The car 12 can be suspended in the center of its upper part. Therefore, the basket

There is no need to provide a car suspension wheel at the lower part of 12, and the arrangement route of the main rope 11 can be shortened, and the overall layout can be simplified. Further, since the beam receiving portions lb for supporting both ends of the support beam 2 are provided on the wall 1a of the hoistway 1, the support beam 2 can be more stably supported. Further, the strength of the guide rails 14 and 15 can be reduced as compared with the case where the support beams 2 are supported by the car guide rails 14 and the counterweights 15, and the support beams 2 and the guide rails 14 can be reduced. , 15 The layout flexibility can be increased.

Further, since the main rope 11 is wound around the drive sheave 8 and the deflector wheel 9 in a double wrap manner, the total winding angle of the main rope 11 around the drive sheave 8 is set to 180 degrees or more. And sufficient traction capability can be ensured. Furthermore, since the driving device 6 is arranged below the machine base 3 and the lower end of the driving device 6 is located below the support beam 2, as shown in FIG. Maintenance work can be easily performed from the car 12.

Further, since the deflecting wheel 9 is disposed on the upper side of the machine base 3 so as to be located diagonally above the driving sheave 8, as shown in FIG. 3, the driving sheave 8 and the deflecting wheel 9 are disposed close to each other. Therefore, even when the diameters are large, the drive sheave 8 and the deflector wheel 9 can be easily arranged without interfering with each other, and the car 12 can be hung at the center of the upper part thereof.

In addition, if the control panel 16 is arranged at the same height as the drive unit 6, the control panel maintenance space and the drive unit maintenance space must be secured at the same height, and the space inside the narrow hoistway 1 Although the layout becomes difficult, the control panel 16 is located lower than the drive unit 6 so that the control panel maintenance space does not interfere with the drive unit maintenance space, so the control panel maintenance space and the drive unit maintenance space Can be easily secured. Embodiment 2

Next, FIG. 4 is a perspective view showing an elevator apparatus according to Embodiment 2 of the present invention. In the figure, a rotatable car suspension wheel 21 around which a main rope 11 is wound is provided at the center of the upper part of the car 12. Above the counterweight 13, a rotatable counterweight suspension wheel 2 2 around which the main rope 11 is wound is provided.

A rope connection beam 23 extending parallel to the support beam 2 is fixed to the upper part of the hoistway 1. ing. The rope connecting beam 23 may be fixed to the beam receiving portion 1 b (FIG. 1) similarly to the supporting beam 2, or may be fixed to the supporting beam 2. One end of the main rope 11 is connected to a lobe connecting beam 23 via a car-side cleat 24. The other end of the main rope 11 is connected to a rope connection beam 23 via a counterweight side cleat 25. The rope connecting beam 23 may be omitted, and both ends of the main rope 11 may be connected to the support beam 2 or the machine base 3. The main rope 1 1 is wound from one end in the order of a car suspension wheel 2, a drive sheave 8, a deflecting wheel 9, a driving sheave 8, a deflecting wheel 9, and a counterweight hanging wheel 2 2, and reaches the other end. . That is, in the second embodiment, the car 12 and the counterweight 13 are suspended in the hoistway 1 by a 2: 1 roving method. Other configurations are the same as in the first embodiment.

Even in the case of such a 2: 1 bubbling elevator apparatus, the driving device 6 can be arranged almost at the center of the hoistway 1 in the vertical projection plane, and the car 12 is placed at the top of the elevator. Can be hung in the center. This makes it possible to reduce the number of car suspension wheels 21 and to shorten the arrangement route of the main ropes 11, thereby simplifying the overall layout.

In addition, the size of the driving device 6 can be reduced as compared with the 1: 1 roving method. In the above example, the beam receiving portion 1b protruding from the wall 1a of the hoistway 1 is shown, but the beam receiving portion may be a concave portion. Further, the structure may be such that the end of the support beam 1b is embedded in the wall 1a. Further, the support beam 2 can be supported by at least one of the car guide rail and the counterweight guide rail.

Further, in the above example, the deflecting wheel 9 is disposed diagonally above the driving sheave 8, but the deflecting wheel 9 may be disposed diagonally below the driving sheave, and the total winding angle of the main rope around the driving sheave may be reduced. It can be further increased.

Furthermore, as long as the drive sheave and the deflecting wheel can be arranged without interfering with each other, the driving sheave and the deflecting wheel may be arranged at the same height.

Furthermore, in the above example, the driving device 6 is arranged at the center of the hoistway 1, but a deflecting car may be arranged at the center of the hoistway 1, and similarly, the car 12 is moved to the center of the upper part. Can be hung.

Further, in the above example, the elevator apparatus in which the counterweight 13 is disposed behind the car 12 is shown, but the counterweight 13 is disposed beside the car 12. The present invention is also applicable to an elevator device.

Claims

The scope of the claims

1. The hoistway,

A driving device having a rotatable drive sheave, and a driving device disposed at an upper portion in the hoistway; a rotatable deflector wheel disposed at an upper portion in the hoistway;

A main rope wound around the drive sheave and the deflecting wheel; and

A car and a counterweight which are suspended in the hoistway by the main ropes and are raised and lowered by the driving force of the driving device.

And an elevator device comprising:

A pair of support beams are fixed at an upper part in the hoistway at an interval from each other, and a machine base that supports the driving device and the deflector is fixed on the support beams,

The drive device, wherein the drive device is disposed below the machine base so as to be located between the support beams.

2. The elevator apparatus according to claim 1, wherein a plurality of beam receiving portions for supporting both ends of the support beam are provided on a wall of the hoistway.

3. The elevator apparatus according to claim 1, wherein the main rope is wound around the drive sheave and the deflector wheel in a double-wrap manner.

4. The elevator apparatus according to claim 1, wherein a lower end of the driving device is located below the support beam.

5. The elevator apparatus according to claim 1, wherein the deflecting wheel is disposed above the machine base so as to be positioned obliquely above the drive sheave.

6. A control panel for controlling the driving device is arranged in the hoistway, and maintenance work of the driving device and the control panel is performed around the driving device and the control panel. The maintenance space for the drive unit and the maintenance space for the control panel are secured, and the control panel is arranged so that the maintenance space for the control panel is located lower than the maintenance space for the drive unit. Item 1. The device described in Item 1.