JP2015009967A - Elevator device and repair method for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To replace a hoist as a roping system is 1:1 roping while utilizing existing machine bases.SOLUTION: First and second hoist base connection beams 27 and 28 are hung between a first hoist base 24 and a second hoist base 26. An additional beam 29 supporting intermediate parts of the first and second hoist base connection beams 27 and 28 is installed between a first machine base 21 and a second machine base 22. The additional beam 29 is horizontally disposed in parallel to the first and second machine bases 21 and 22. A hoist 4 is straddlingly fixed on the first and second hoist base connection beams 27 and 28 and the second hoist base 26.

Description

  The present invention relates to an elevator apparatus in which a hoisting machine is installed on a hoisting machine support apparatus having a machine base, a hoisting machine base, and the like, and an elevator apparatus repair method including at least the hoisting machine replacement. .

  In the conventional elevator renovation method, a new hoisting machine is installed in an empty space near an existing hoisting machine, and the roping method is changed from 1: 1 roping to 2: 1 roping (for example, Patent Document 1, 2).

JP 2008-30885 A JP 2012-17165 A

  In the conventional elevator renovation method as described above, since the roping method is changed to 2: 1 roping, a car suspension car must be newly installed on the car and a counterweight car must be newly installed on the counterweight. . For this reason, not only the hoisting machine installation work in the machine room but also the work on the car and in the hoistway increase, the installation work time becomes longer and the cost increases.

  Further, for example, in a high-speed elevator, the interval between the machine bases may be long. If the distance between the machine tables is long, the height of the hoisting machine table installed immediately above the machine table must be increased in order to ensure the strength. However, since the ceiling height of the machine room is fixed, if the height of the hoisting machine base is increased, it may be impossible to secure a space for installing the hoisting machine.

  On the other hand, there is no problem if the machine base is removed and a new machine base and hoisting machine base are installed, but the end of the existing machine base is embedded in the machine room wall, and the machine base is removed. It can be difficult. In this case, a method of reducing the load applied to the machine base and the hoisting machine base by reducing the hoisting machine by changing the roping method to 2: 1 roping while diverting the machine base is unavoidable. .

  The present invention has been made in order to solve the above-described problems, and an elevator that can replace a hoisting machine while using an existing machine base and maintaining a roping method of 1: 1 roping. The object is to obtain a device and a method for its modification.

  An elevator apparatus according to the present invention includes a hoisting machine support device installed in a machine room at an upper part of a hoistway, a hoisting machine supported by the hoisting machine support apparatus and having a drive sheave, a drive A suspension body that is wound around a sheave, and a suspension body that is suspended by the suspension body and that is lifted and lowered in a hoistway by a hoisting machine. First and second machine bases installed at intervals, a first hoisting machine base installed on the first machine base along the first machine base, and a second machine A second hoisting machine stand installed on the second machine stand along the stand, and a hoisting machine installed between the first hoisting machine stand and the second hoisting machine stand A base connecting beam and an additional beam installed between the first machine base and the second machine base and supporting an intermediate portion of the hoisting machine base connecting beam. It is.

  In the elevator apparatus according to the present invention, the additional beam is installed between the first machine base and the second machine base, and the intermediate portion of the hoisting machine base connecting beam is supported by the additional beam. Even when the distance between the first and second machine bases is wide, it is not necessary to increase the heights of the first and second hoisting machine bases and the hoisting machine base connecting beams. For this reason, when refurbishing the elevator apparatus, the hoisting machine can be replaced while the roping method is kept at 1: 1 roping while using the existing first and second machine bases.

1 is a side view showing an elevator apparatus according to Embodiment 1 of the present invention. It is a side view which shows the winding machine support apparatus of FIG. It is a top view which shows the winding machine support apparatus of FIG. It is a top view which shows the modification which does not use the deflecting wheel of FIG.

Hereinafter, embodiments for carrying out 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. In the figure, a machine room 2 is provided in the upper part of the hoistway 1. A hoisting machine support device 3 is installed in the machine room 2. On the hoisting machine support device 3, the hoisting machine 4 is supported. The hoisting machine 4 has a drive sheave 5 and a hoisting machine main body 6. The hoisting machine main body 6 includes a hoisting machine motor that rotates the driving sheave 5 and a hoisting machine brake that brakes the rotation of the driving sheave 5.

  A deflecting wheel 7 is supported on the hoisting machine support device 3. A suspension body 8 is wound around the drive sheave 5 and the deflecting wheel 7. As the suspension body 8, for example, a plurality of ropes or a plurality of belts are used.

  A car 9 is connected to the first end of the suspension 8. A counterweight 10 is connected to the second end of the suspension 8. The car 9 and the counterweight 10 are suspended in the hoistway 1 by the suspension body 8 by a 1: 1 roping method, and are lifted and lowered by the hoisting machine 4.

  In the hoistway 1, a pair of car guide rails 11 that guide the raising and lowering of the car 9 and a pair of counterweight guide rails 12 that guide the raising and lowering of the counterweight 10 are installed.

  The car 9 has a car frame 13 to which the suspension body 8 is connected and a car room 14 supported by the car frame 13.

  An elevator control device (control panel) 15 is installed in the machine room 2. The elevator control device 15 raises and lowers the car 9 at a set speed by controlling the rotation of the hoist 4.

  2 is a side view showing the hoisting machine support device 3 of FIG. 1, and FIG. 3 is a plan view showing the hoisting machine support device 3 of FIG. On the floor of the machine room 2, first and second machine tables 21 and 22 are installed with a space therebetween. As the first and second machine bases 21 and 22, H-section steels of the same size are used. The first and second machine bases 21 and 22 are installed in parallel and horizontally with each other.

  A first hoisting machine base 24 is installed on the first machine base 21 via a plurality of first vibration isolation members 23. The first hoisting machine base 24 is disposed horizontally along the first machine base 21. A second hoisting machine base 26 is installed on the second machine base 22 via a plurality of second vibration isolation members 25. The second hoisting machine base 26 is disposed horizontally along the second machine base 22.

  As the first and second hoisting machine bases 24 and 26, H-shaped steel of the same size is used. The cross-sectional size of the first and second hoisting machine bases 24 and 26 is smaller than the cross-sectional size of the first and second machine bases 21 and 22. As the first and second vibration isolation members 23 and 25, vibration isolation rubber is used.

  Between the first hoisting machine base 24 and the second hoisting machine base 26, first and second hoisting machine base connecting beams 27 and 28 are installed. The first and second hoisting machine base connecting beams 27 and 28 are arranged at right angles to the first and second hoisting machine bases 24 and 26. Further, the first and second hoisting machine base connecting beams 27 and 28 are arranged in parallel with each other and horizontally.

  Furthermore, the same size H-section steel is used as the first and second hoisting machine base connecting beams 27 and 28. Furthermore, one end of the first and second hoisting machine base connecting beams 27 and 28 is inserted between the upper and lower flanges of the first hoisting machine base 24 with the upper flange part cut away. Yes. Similarly, the other flanges of the first and second hoisting machine base connecting beams 27 and 28 are inserted between the upper and lower flange parts of the second hoisting machine base 26 with the upper flange part cut away. ing.

  Between the first machine base 21 and the second machine base 22, an additional beam 29 that supports an intermediate portion between the first and second hoisting machine base connecting beams 27 and 28 is installed. As the additional beam 29, H-section steel is used. Further, the additional beam 29 is fixed on the floor of the machine room 2 by anchor bolts.

  Further, the additional beam 29 is disposed in parallel and horizontally with the first and second machine bases 21 and 22. Furthermore, the height of the additional beam 29 is the height of the first machine base 21, the height of the first vibration isolation member 23, and the height of the lower flange portion of the first hoisting machine base 24 ( (Thickness) and the height.

  The hoisting machine 4 is fixed over the first and second hoisting machine base connecting beams 27 and 28 and the second hoisting machine base 26. The deflecting wheel 7 is supported on the second hoisting machine base connecting beam 28. The mounting positions of the hoisting machine 4 and the deflecting wheel 7 with respect to the hoisting machine support device 3 can be adjusted in the horizontal direction. As shown in FIG. 3, the floor of the machine room 2 is provided with first and second suspension body insertion holes (rope holes) 30 a and 30 b through which the suspension body 8 is passed.

  Next, the repair method of an elevator apparatus is demonstrated. 1 to 3 show the elevator apparatus after the repair, and the car 9 and the counterweight 10 etc. are diverted from the elevator apparatus before the repair, and the hoisting machine 4 and the elevator control device 15 are mainly used. Etc. are new (so-called control renewal).

  When performing such a renovation work, the first and second machine bases 21 and 22 are left, and the existing hoisting machine base, the existing hoisting machine, and the existing deflector are replaced with the first and second machine bases. Is removed from the machine bases 21 and 22. The existing elevator control device will also be removed.

  Thereafter, a new first hoisting machine base 24 is installed on the first machine base 21 via the first vibration isolation member 23. In addition, a new second hoisting machine base 26 is installed on the second machine base 22 via the second vibration isolation member 25. Furthermore, a new additional beam 29 is provided in parallel between the first machine base 21 and the second machine base 22.

  Then, new first and second hoisting machine base connecting beams 27 and 28 are installed between the first hoisting machine base 24 and the second hoisting machine base 26. At this time, the intermediate portion of the first and second hoisting machine base connecting beams 27 and 28 is supported by the additional beam 29.

  Thereafter, a new hoisting machine 4 and a new deflecting wheel 7 are installed on the hoisting machine support device 3. At this time, by adjusting the position of the hoisting machine 4 and the position of the deflecting wheel 7, the existing suspension body insertion holes 30a and 30b are used even after the repair. In addition, a new elevator control device 15 is installed in the machine room 2.

  In such an elevator apparatus, the additional beam 29 is installed between the first machine base 21 and the second machine base 22, and the first and second hoisting machine base connecting beams 27, 28, the first and second hoisting machine bases 24 and 26 and the first and second windings are supported even when the distance between the first and second machine bases 21 and 22 is wide. It is not necessary to increase the height of the upper machine base connecting beams 27 and 28.

  For this reason, when refurbishing the elevator apparatus, the hoisting machine 4 can be replaced while using the existing first and second machine bases 21 and 22 while maintaining the roping method as 1: 1 roping. . Further, the hoisting machine 4 can be weighted regardless of the ceiling height of the machine room 2.

  Furthermore, according to the elevator apparatus renovation method as described above, it is possible to limit the work area to the machine room 2 only, thereby shortening the work period and reducing the cost.

  Furthermore, since the hanging positions of the car 9 and the counterweight 10 in the hoistway 1 are not changed, the existing suspension insertion holes 30a and 30b can be used. As a result, the number of work days and the construction costs are lower than when a new suspension hole is opened. In addition, since the suspension points of the car 9 and the counterweight 10 are not changed, the guide rails 11 and 12 and the guide shoe can also be used.

In the above example, the hoisting machine 4 and the deflecting wheel 7 are supported by the hoisting machine supporting device 3, but for example, as shown in FIG. Applicable.
Further, in the above repair method, the baffle 7 is replaced, but an existing baffle may be used.
Furthermore, the hoisting machine support device 3 of the present invention can be used not only for control renewal but also for repair work for replacing the car 9 and the like.
Furthermore, the number of hoisting machine base connecting beams is not limited to two, and may be one or three or more.
Further, the position and number of the vibration isolating members are not limited to the above example. For example, a vibration isolation member may be provided between the hoisting machine support device 3 and the hoisting machine 4. Further, a vibration isolating member may be added between the additional beam 29 and the hoisting machine base connecting beams 27 and 28.
Furthermore, the additional beam 29 may be divided into two in the length direction, and the first and second hoisting machine base connecting beams 27 and 28 may be separately supported.
Furthermore, two or more additional beams may be installed between the first and second machine bases 21 and 22.
Further, the configuration of the entire elevator apparatus is not limited to that shown in FIG.

  DESCRIPTION OF SYMBOLS 1 Hoistway, 2 Machine room, 3 Hoisting machine support apparatus, 4 Hoisting machine, 5 Drive sheave, 8 Suspension body, 9 Car, 10 Counterweight, 21 1st machine stand, 22 2nd machine stand, 23 1st anti-vibration member, 24 1st hoisting machine stand, 25 2nd anti-vibration member, 26 2nd hoisting machine stand, 27 1st hoisting machine base connection beam, 28 2nd hoisting Upper machine base connection beam, 29 additional beam, 30a first suspension insertion hole, 30b second suspension insertion hole.

Claims (6)

Hoisting machine support device installed in the machine room above the hoistway,
A hoisting machine supported by the hoisting machine support device and having a drive sheave;
A suspension body wound around the drive sheave, and a car suspended from the suspension body and moved up and down in the hoistway by the hoisting machine and a counterweight,
The hoist supporting device is
First and second machine bases installed at a distance from each other in the machine room;
A first hoisting machine base installed on the first machine base along the first machine base;
A second hoisting machine base installed on the second machine base along the second machine base;
A hoisting machine connecting beam constructed between the first hoisting machine base and the second hoisting machine base;
The elevator apparatus which is installed between the said 1st machine stand and the said 2nd machine stand, and has the additional beam which supports the intermediate part of the said winding machine stand connection beam.   Anti-vibration members are interposed between the first machine base and the first hoisting machine base and between the second machine base and the second hoisting machine base, respectively. The elevator apparatus according to claim 1. The hoisting machine is supported by the hoisting machine support device, and further includes a deflecting wheel around which the suspension body is wound.
The elevator apparatus according to claim 1 or 2, wherein attachment positions of the hoisting machine and the deflecting wheel with respect to the hoisting machine support apparatus are adjustable. The first and second machine bases are connected to the existing hoisting machine base and the existing hoisting machine with the first and second machine bases installed on the floor of the machine room spaced apart from each other. The process of removing from the top,
A new first hoisting machine base is installed on the first machine base, a new second hoisting machine base is installed on the second machine base, and the first machine base and the Arranging a new additional beam in parallel with the second machine base;
A new hoisting machine base connecting beam is installed between the first hoisting machine base and the second hoisting machine base, and an intermediate portion of the hoisting machine base connecting beam is supported by the additional beam. And a hoisting machine support device comprising: the first and second machine bases; the first and second hoisting machine bases; the hoisting machine base connecting beam; and the additional beam. A method for refurbishing an elevator system, including the process of installing a new hoisting machine.   A new deflecting wheel is installed on the hoisting machine support device together with the new hoisting machine, and by adjusting the position of the new hoisting machine and the position of the new deflecting wheel, The repair method of the elevator apparatus of Claim 4 which utilizes the existing suspension body penetration hole provided in the floor after repair.   When installing a new first hoisting machine base on the first machine base and installing a new second hoisting machine base on the second machine base, the first machine base The vibration isolating member is interposed between the first and the first hoisting machine base and between the second machine base and the second hoisting machine base, respectively. Method of repairing elevator equipment.

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