WO2004050528A1

WO2004050528A1 - Elevator equipment

Info

Publication number: WO2004050528A1
Application number: PCT/JP2002/012713
Authority: WO
Inventors: Shiroh Ikeda
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2002-12-04
Filing date: 2002-12-04
Publication date: 2004-06-17
Also published as: EP1568644B1; JPWO2004050528A1; DE60236551D1; EP1568644A1; KR100685505B1; EP1568644B9; CN1592712A; KR20040083467A; EP1568644A4

Abstract

Elevator equipment, wherein a car deflector wheel for leading a main rope from a drive sheave to a car and a balance weight deflector wheel for leading the main rope from the drive sheave to a balance weight are disposed at the inside upper part of a hoistway, the drive sheave, the car deflector wheel, and the balance weight deflector wheel are disposed so that the rotating shafts thereof extend parallel with each other, and a drive device is positioned lower than the car deflector wheel while avoiding an upper beam in a vertical plane of projection.

Description

Description Elevator equipment Technical field

The present invention relates to a machine room-less type elevator apparatus in which a driving device for raising and lowering a car and a counterweight is disposed at an upper portion in a hoistway. Background art

For example, in a conventional machine room-less elevator disclosed in Japanese Patent Application Laid-Open No. 2002-180178, a driving device and a deflector are arranged at an upper portion in a hoistway. A plurality of main ropes are wound around the drive sheave and the deflector of the drive unit. In order to increase the traction force by increasing the winding angle of the main rope around the drive sheave, the main rope is wound around the drive sheave such that the part extending to the car and the part extending to the deflector car intersect. The drive unit is mounted on the machine base so that the rotation axis of the drive sheave is inclined with respect to the rotation axis of the deflector wheel so that the part extending to the car and the part extending to the deflector wheel do not interfere with each other. I have.

As described above, in the conventional elevator device, since the rotation axis of the drive sheave is inclined with respect to the rotation axis of the deflecting wheel, it is necessary to mount the drive device obliquely on the machine base. Adjustment takes time. In addition, the angle at which the main rope entered the rope groove of the drive sheave was increased, and the friction with the rope groove could shorten the life of the main rope.

In addition, since the drive unit is located at the top of the hoistway, if the drive unit becomes large, the space in the hoistway must be expanded upward, and the vertical dimension of the hoistway increases. Would. Disclosure of the invention

The present invention has been made to solve the above-described problems, and can facilitate the installation work of a driving device and a deflector car, and can be connected to a rope groove. It is an object of the present invention to provide an elevator apparatus capable of suppressing abrasion of a main rope due to touch and reducing a vertical dimension of a hoistway.

An elevator apparatus according to the present invention has a motor section and a drive sheave rotated by the motor section, a driving device disposed at an upper portion in the hoistway, and first and second ends. A main frame wound around the drive sheave, a car frame including an upper beam, and a cab supported by the car frame below the upper beam, and at a first end portion. It has a suspended car and a counterweight suspended at the second end, and in the upper part of the hoistway, a car deflector that guides the main rope from the drive sheave to the car; And a counterweight deflector that guides the drive sheave from the drive sheave to the counterweight is arranged. The drive is lower than the deflector and counterweight deflector vehicles, and It is arranged in a position avoiding the upper beam in the direct projection plane. BRIEF DESCRIPTION OF THE FIGURES

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

FIG. 2 is a plan view showing the device shown in FIG.

Figure 3 is a front view showing the top of the hoistway of Figure 1,

FIG. 4 is an explanatory diagram showing an example of the relationship between the diameter of the drive sheave in FIG.

FIG. 5 is an explanatory diagram showing another example of the relationship between the diameter of the drive sheave in FIG.

FIG. 6 is a side view showing a main part of an elevator apparatus according to Embodiment 2 of the present invention, and FIG. 7 is a side view showing an elevator apparatus according to Embodiment 3 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 side view showing an elevator apparatus according to Embodiment 1 of the present invention (1: single-buffing machine room-less elevator apparatus), and FIG. 2 shows the elevator apparatus of FIG. Plan view, FIG. 3 is a front view showing the top of the hoistway of FIG.

In the figure, a pair of car guide rails 2 and a pair of counterweight guide rails 3 are installed in a hoistway 1. The car 4 is guided up and down the hoistway 1 by the car guide rail 2. The counterweight 5 is guided by the counterweight guide rail 3 and is moved up and down in the hoistway 1.

The car 4 has a car frame 7 including an upper beam 6 and a cab 8 supported by the car frame 7 below the upper beam 6. The car frame 7 is provided with a plurality of guide shoes 9 that engage with the car guide rails 3. A car door device 10 that opens and closes a car doorway (not shown) is provided in front of the car room 8. The landing is provided with a landing door device 11 that opens and closes a landing entrance (not shown).

A pair of machine stands 12 extending along the frontage direction of the hoistway 1 (the left-right direction in FIG. 2) is fixed to the upper part of the hoistway 1. The machine stand 12 is fixed on the structural beam 13 on the building side. A pair of drive device support beams 14 is attached to a lower portion of the machine base 12.

A drive device 15 for raising and lowering the car 4 and the counterweight 5 is mounted below the drive device support beam 14. The drive device 15 has a motor section 16 and a drive chip 17 rotated by the motor section 16. The driving device 15 is arranged such that the rotation axis of the driving sheave 17 extends horizontally along the frontage of the hoistway 1.

A plurality of main ropes 18 are wound around the drive sheave 17. Each main rope 18 has first and second ends 18a, 18b. The car 4 is suspended from the first end 18a via a car-side cleat (not shown). The counterweight 5 is suspended from the second end 18b via a counterweight side cleat (not shown).

A pair of deflecting wheel support beams 19 is attached to the upper part of the machine base 12. The car support beam 19 carries the main rope 18 from the drive sheep 17 to the car 4 and the car deflector 20 and the main rope 18 carries the balance from the drive sheep 17 to the counterweight 5. It is equipped with a car 21.

The main rope 18 is wound around the lower side of the drive sheave 17 and the upper side of the deflecting wheel 20 and the counterweight deflecting wheel 21. The drive sheave 17, the deflecting wheel 20 and the counterweight deflecting wheel 21 are arranged such that their rotation axes extend parallel to each other and horizontally. The driving device 15 is disposed lower than the deflecting wheel 20 and the counterweight deflecting wheel 21 and at a position avoiding the upper beam 6 in the vertical projection plane.

Further, the driving device 15 is arranged at a position where at least a part thereof overlaps the car 4 in the vertical projection plane. Further, the driving device 15 is disposed at a position where a part thereof partially overlaps with the car deflector 20 and the counterweight deflector 21 in the vertical projection plane. Between the machine stand 12 and the drive support beam 14 and the deflector support beam 19, the vibrations of the drive 15, deflector 20 and counterweight deflector 21 are transmitted to the building. A plurality of anti-vibration members 22 such as anti-vibration rubber are interposed.

Control panels 2 and 3 for controlling the driving device 15 and the like are fixed to the upper wall in the hoistway 1. The control panel 23 is arranged in the arrangement area of the landing door device 11 and the car door device 10 in the vertical projection plane.

In such an elevator system, the drive shaft 17, the deflecting wheel 20, and the counterweight deflecting wheel 21 are arranged so that the rotation axes thereof extend in parallel with each other. In addition, the work of installing the basket 20 and the counterweight deflecting vehicle 21 can be facilitated.

In addition, it is possible to reduce the angle of entry of the main rope 18 into the mouth groove of the drive ship 17, the basket deflector 20 and the counterweight deflector 21, and the life of the main rope 18 is reduced. Can be extended. That is, in the first embodiment, the rope grooves corresponding to the main ropes 18 of the drive sheave 17, the skew deflector 20 and the counterweight deflector 21 can be arranged in a straight line. The approach angle can be reduced to almost 0 °.

Further, since the driving device 15 is lower than the deflecting wheel 20 and the counterweight deflecting vehicle 21 and is located at a position avoiding the upper beam 6 in the vertical projection plane, a large driving device is used. Even in the case where 15 is used, it is not necessary to extend the space in the hoistway 1 upward as long as it does not interfere with the car frame 7 and the car room 8, and the vertical dimension of the hoistway 1 can be reduced. it can. In addition, even if the car 4 rises above the stop position on the top floor for some reason, the upper beam 6 does not come into contact with the driving device 15. Further, the driving device 15 is arranged at a position where the driving device 15 partially overlaps the car 4 in the vertical projection plane. The cross section of the hoistway 1 can be reduced.

In addition, the drive unit 15 is disposed at a position where a part thereof overlaps with the deflecting vehicle 20 and the counterweight deflecting vehicle 21 in the vertical projection plane, so that the cross-sectional area of the hoistway 1 is reduced. be able to.

In addition, since the drive unit 15 is mounted on the lower part of the machine base 12 and the car deflector car 20 and the counterweight deflector car 2 1 are mounted on the upper part of the machine base 12, a common machine By using the platform 12, the drive unit 15 can be arranged at a lower position than the deflecting vehicle 20 and the counterweight deflecting vehicle 21.

Furthermore, since the control panel 23 is disposed right above the landing door device 11 and the car door device 10, the space in the hoistway 1 can be effectively used.

In the above example, the machine stand 12 was supported by the structural beams 13 on the building side.For example, the machine stand 12 was supported by at least one of the car guide rail 2 and the counterweight guide rail 3. It is good also as a structure which does. In this case, the load on the building can be reduced. Conversely, when the machine base 12 is supported by the structural beams 13, the load on the guide rails 2 and 3 can be reduced, and the strength of the guide rails 2 and 3 can be reduced.

Further, as the motor part 16 of the drive unit 15, even if a thin motor having a larger diameter than the axial dimension is used, a cylindrical motor having a larger axial dimension than the diameter is used. Is also good.

Here, the diameter of the drive sheave 17 may be different from the diameter of at least one of the deflecting wheel 20 and the counterweight deflecting wheel 21. Thereby, the winding angle of the main cable 18 around the drive sheave 17 can be adjusted.

For example, FIG. 4 is an explanatory diagram showing an example of the relationship between the diameter of the drive sheave 17 in FIG. 1 and the diameters of the skewers 20 and the counterweight deflecters 21, and FIG. 5 shows another example. FIG. Thus, by changing the relationship between the diameter of the drive sheep 17 and the diameters of the deflecting wheel 20 and the counterweight deflecting vehicle 21, the main rope 18 is wound around the driving sheep 17. The attachment angle can be adjusted.

Also, by changing the distance between the drive sheave 17 and the deflecting vehicle 20 and the counterweight deflecting vehicle 21, the winding angle of the main rope 18 around the driving sheave 17 is also changed. of Adjustments can be made.

Furthermore, by setting the ratio D / d between the diameter D of the driving sheave 17, the deflecting wheel 20 and the counterweight diverting wheel 21 to the diameter d of the main rope 18 to 20 or less, It is possible to reduce the size of the sieve 17, the deflecting car 20 and the counterweight deflecting car 21, and to save space in the hoistway 1.

Furthermore, in order to reduce the diameter of the sieve as described above, a resin-coated rope in which an outer layer coating made of a high-friction resin material is provided on the outer peripheral portion may be used as a main rope. Embodiment 2

FIG. 6 is a side view showing a main part of an elevator apparatus according to Embodiment 2 of the present invention. In this example, the driving device 15 is disposed so as to overlap the counterweight 5 in the vertical projection plane. A portion 18c of the main rope 18 extending from the counterweight deflector wheel 2 1 to the counterweight 5 passes between the drive sheave 17 and the motor section 16. Other configurations are the same as those in the first embodiment.

With such a configuration, the installation work of the drive unit 15 and the deflector wheels 20 and 21 can be facilitated, and the wear of the main rope 18 due to the contact with the rope groove can be suppressed. Also, the vertical dimension of the hoistway 1 can be reduced. Further, even when the depth dimension of the car 4 is small, it is possible to more reliably prevent the driving device 15 and the upper beam 6 from interfering with each other. Embodiment 3.

FIG. 7 is a side view showing an elevator apparatus according to Embodiment 3 of the present invention. In this example, the driving device 15 is attached to the upper portion of the machine base 11 via a machine base support beam 14. The deflection vehicle support beam 19 is supported on the machine base 11 via the support base 24 above the drive unit 15. Therefore, the deflecting wheel 20 and the counterweight deflecting wheel 21 are supported by the machine base above the driving device 11. Other configurations are the same as those in the first embodiment.

With such a configuration, the installation work of the drive unit 15 and the deflector wheels 20 and 21 can be facilitated, and the wear of the main cable 18 due to the contact with the rope groove can be reduced. The vertical dimension of the hoistway 1 can be reduced,

Claims

The scope of the claims

1. A driving device having a motor section and a drive sheave rotated by the motor section, and arranged at an upper part in the hoistway,

A main rope having first and second ends, wound around the drive sheave, a car frame including an upper beam, and a cab supported by the car frame below the upper beam. A basket suspended from the first end, and

Counterweight suspended from the second end

And an elevator device comprising:

A car deflector that guides the main rope from the drive sheave to the car above the hoistway, and a counterweight deflector that guides the main rope from the drive sheep to the counterweight. And a car are located,

The drive sheave, the deflecting wheel and the counterweight deflecting wheel are arranged such that their rotation axes extend parallel to each other,

The driving device, wherein the driving device is lower than the deflecting wheel and the counterweight deflecting vehicle, and is located at a position avoiding the upper beam in a vertical projection plane.

2. The elevator apparatus according to claim 1, wherein the driving device is disposed at a position where at least a part of the driving device overlaps with the car in a vertical projection plane.

3. The elevator apparatus according to claim 1, wherein a part of the driving device is disposed in a vertical projection plane at a position overlapping at least one of the deflecting vehicle and the counterweight deflecting vehicle. .

4. The elevator apparatus according to claim 1, wherein a diameter of the drive ship is different from at least one of the deflecting wheel and the counterweight deflecting vehicle.

5. At the upper part in the hoistway, a machine table that supports the driving device, the car deflector car and the counterweight deflector car is fixed, and the driving device is the machine table. 2. The elevator apparatus according to claim 1, wherein the elevator car is attached to a lower portion of the elevator, and the deflecting car and the counterweight deflecting car are attached to an upper portion of the machine base.

6. At the upper part in the hoistway, a machine base that supports the driving device, the car deflector car, and the counterweight deflector car is fixed, and the driving device is mounted on the upper part of the machine base. 2. The elevator assembly according to claim 1, wherein the deflecting wheel and the counterweight deflecting wheel are supported by the machine base above the driving device. 3.

7. The elevator apparatus according to claim 1, wherein the main rope is a resin-coated rope having an outer layer covering made of a high-friction resin material provided on an outer peripheral portion.

8. The apparatus according to claim 1, wherein the diameter of the drive sheave, the deflecting wheel and the counterweight deflecting vehicle is set to be 20 times or less the diameter of the main rope. .

9. The control panel for controlling the driving device is fixed to an upper wall portion in the hoistway, and is arranged in a vertical projection plane in an area where the landing door device and the car door device are arranged. The elevator apparatus according to claim 1.