JP3700412B2 - Traction elevator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a traction sheave elevator, and in particular, driven by a car that moves along an elevator guide rail and a counterweight that moves along a counterweight guide rail, and a set of hoisting ropes and a driving machine on which the car and the counterweight are suspended. The present invention relates to an overall arrangement configuration of a drive machine device including a traction sheave that engages with a hoisting rope.
[0002]
[Prior art]
A conventional traction sheave drive elevator is basically based on a layout in which a machine room is provided at the uppermost part of the elevator shaft, and a drive machine device is disposed therein. However, this basic form significantly restricted the design of the building with respect to the space utilization and appearance of the entire building. Therefore, in recent years, a traction elevator in which a hoisting machine device including a hoisting motor is installed in an elevator shaft has been proposed as a solution for increasing the degree of freedom in building design and using it efficiently and economically. It is being put into practical use. According to Japanese Patent Laid-Open No. 8-208152 as an example of the present proposal, a machine base is provided at the upper end of the counterweight guide rail between the car and the wall of the elevator shaft, and a drive machine device is installed thereon. Further, the drive machine is fixed to the shaft wall or ceiling by a reinforcing element that absorbs horizontal force but does not substantially absorb any vertical support force with respect to the elevator shaft. .
[0003]
[Problems to be solved by the invention]
If the building is made of reinforced concrete and the elevator shaft is made of concrete whose walls or ceiling are also reinforced with reinforcing bars, there is no problem because the horizontal force of the drive machine device is sufficiently absorbed through the reinforcing element, but there is no practical building. In many cases, the wall or ceiling of the elevator shaft is made of a steel frame that is partitioned by a lightweight concrete plate in a reinforcing member, and cannot absorb the horizontal force of the drive machine. That is, there is a problem that the reinforcing element cannot be directly attached to the wall or ceiling of the elevator shaft.
[0004]
Further, when the drive machine device is directly fixed to the machine base and further fixed to the wall or ceiling of the elevator shaft directly through the reinforcing element, the vibration of the drive machine device is directly propagated to the building, When there are bedrooms, hospital rooms, music halls, conference rooms, etc., where quietness is required adjacent to the elevator shaft, noise complaints often occur.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a machine base frame in which the upper end portion of the counterweight guide rail and the upper beam of the elevator shaft are connected in a vertical direction by a connecting column , and a drive machine is provided in the machine base frame. A mechanical base for supporting the vertical load of the device, and a reinforcing member for connecting the connecting column and supporting the horizontal load in the axial direction of the drive machine device via the upper end of the drive machine device, It is supported by the machine foundation frame in a vibration-proof structure. With the above-described configuration, the horizontal force of the drive machine device is supported by building beams on each floor of the building.
[0007]
Furthermore, the fixed part of the drive machine unit, by vibration-damping support fixed via a vibration-proof rubber, those which attained vibration propagation reduction of the drive machine unit.
[0008]
ADVANTAGE OF THE INVENTION According to this invention, even when a building is made of steel frame and it is partitioned off by the lightweight concrete board which does not contain the reinforcing material in the wall or ceiling of an elevator shaft, it can prevent a drive machine apparatus from shaking. In addition, by using the anti-vibration support structure, the vibration propagation of the drive machine device can be reduced.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS.
[0010]
A car 1 and a counterweight 2 are suspended on an elevator hoisting rope 3. The car 1 is supported by a hoisting rope 3 using turning pools 4 (on both sides) provided with rope grooves, and the counterweight 2 is supported by a grooved turning pulley 5. An elevator drive mechanical device 6 having a traction sheave 7 that engages the hoisting rope 3 is located at the top of the elevator shaft.
[0011]
The car 1 and the counterweight 2 travel in the elevator shaft along the car guide rails 8a and 8b and the counterweight guide rails 9a and 9b that guide the car 1 and the counterweight 2, respectively. A car guide and a counterweight guide for guiding and supporting the car 1 and the counterweight 2 on the guide rail are not shown. The guide rail is supported by the guide rail support by the wall of the elevator shaft or the building beam, but this is not shown.
[0012]
The hoisting rope 3 runs as follows. One end of the hoisting rope 3 is fixed to fixing means 12 above the passage of the counterweight 2 in the uppermost part of the shaft. The rope 3 from the fixing means 12 descends until it meets a turning pulley 5 that is rotatably mounted on the counterweight 2. When the turning pulley 5 is wound, the rope 3 rises again to the traction sheave 7 of the drive mechanism device 6 and winds along the rope groove. The rope 3 descends from the traction sheave 7 to the car 1 and rises to the uppermost fixing means 13 of the guide rail 8a via the turning pulley 4 supporting the car 1. Here, the other end of the rope 3 is fixed.
[0013]
A machine base frame 10 is stacked and fixed on the upper ends of the counterweight guide rails 9a and 9b. The machine base frame 10 is formed of a machine base 10a, vertical columns 10b and 10c, and a reinforcing member 10d. The machine base 10a is fixedly attached with a driving mechanism 6 and a fixing means 12 at one end of the rope 3 to firmly hold the respective vertical loads. Further, the upper ends of the connecting columns 10b and 10c are fixed to the building beam 14 at the uppermost position of the elevator shaft. Further, the horizontal load of the drive machine device 6 is supported through the reinforcing member 10d that connects the left and right columns 10b and 10c and the support bracket 11. It is optimal that the support bracket 11 is provided at the upper end of the drive machine device 6.
[0014]
In the embodiment shown in FIGS. 1 and 2, the interval between the counter guide rails 9a and 9b is narrow and the drive machine device 6 does not fit in the counter guide rail. However, the drive machine device 6 is located between the counter guide rails 9a and 9b. An example of arrangement so as to fit in the case will be described with reference to FIG. In FIG. 3, the counterweight rails 9a and 9b are extended and fixed to the building beam 14 at the uppermost position of the elevator shaft. The machine base 10a is fixed to the counterweight rails 9a and 9b. As a means for fixing the machine base 10a, it is preferable to fix it with a guide rail with a stopper in order to hold a vertical load. The reinforcing member 10d is fixed to the counterweight rails 9a and 9b, and the support bracket 11 is fixed.
[0015]
The embodiment described with reference to FIGS. 1, 2, and 3 shows an example in which the vertical load and the horizontal load are directly supported by the machine base 10 a and the auxiliary member 11. A method of reducing vibration propagation to the side will be described with reference to FIG. In FIG. 4, reference numeral 17 denotes an anti-vibration rubber having mounting bolts on both sides. It is attached and fixed to the machine base 10a via the vibration isolating rubber 17. Reference numeral 18a denotes a plate-like vibration-proof rubber disposed on both sides of the support metal 11, and has a structure that is fixed to the auxiliary member 11 with a fixing bolt 18c via a pressing plate 18b. In FIG. 4, the vibration isolating rubber 18a for the support bracket 11 is used. However, the vibration of the driving machine device 6 is mainly in the vertical direction, and the vibration isolating rubber 18a may not be used. In this case, since the support metal 11 receives a substantially vertical load in addition to the horizontal load, it is necessary to consider the strength of the support metal 11 and the reinforcing member 10d.
[0016]
2 and 4, 15 denotes a side wall of the building, and 16 denotes a ceiling wall.
[0017]
【The invention's effect】
Even if the traction elevator according to the present invention has a drive machine device in the elevator shaft, the wall of the elevator shaft is not used as a horizontal load supporting housing of the drive machine device, so that the elevator shaft wall is made of lightweight concrete, etc. Can be used, and it is advantageous to install an elevator in a steel frame building.
[0018]
In the traction elevator according to the present invention, the vibration transmission to the building can be reduced by fixing the drive machine device in a vibration-proof manner, and it is advantageous to install the elevator in a lightweight steel building.
[Brief description of the drawings]
FIG. 1 is a schematic view showing a traction sheave elevator according to one embodiment.
FIG. 2 is a view taken along arrow XX in FIG.
FIG. 3 is a schematic view showing a traction sheave elevator according to another embodiment.
4 is a view taken along the line XX of FIG. 1 showing another embodiment of FIG. 2;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Car, 2 ... Counterweight, 3 ... Rope, 4 ... Car support turning pulley, 5 ... Counterweight turning pulley, 6 ... Drive machinery, 8a, 8b ... Car guide rail, 9a, 9b ... Counterweight guide rail DESCRIPTION OF SYMBOLS 10, 10a, 10b, 10d ... Machine frame, 11 ... Support metal fitting, 14 ... Building beam, 17 ... Anti-vibration rubber.

Claims (4)

The counterweight between the car moving along the car guide rail, the counterweight moving along the counterweight guide rail, a pair of hoisting ropes on which the car and the counterweight are suspended, and the wall of the car and the elevator shaft In a traction sheave elevator including a drive mechanical device including a traction sheave that engages with a hoisting rope at an upper end of a guide rail, the upper end of the counterweight guide rail and an upper beam of the elevator shaft are connected in a vertical direction by a joint column. A mechanical base frame is provided, and a mechanical base supporting the vertical load of the driving machine device is connected to the mechanical base frame, and the shaft of the driving machine device is connected to the joint column via the upper end portion of the driving machine device. It provided a reinforcing member for supporting a horizontal load in the direction, vibration isolation of the drive machinery Traction sheave elevator, characterized in that supported by the machine base in concrete.   The counterweight between the car moving along the car guide rail, the counterweight moving along the counterweight guide rail, a pair of hoisting ropes on which the car and the counterweight are suspended, and the wall of the car and the elevator shaft In a traction sheave elevator including a drive mechanical device including a traction sheave that engages with a hoisting rope at an upper end of a guide rail, the counterweight guide rail is provided to extend to an upper beam of the elevator shaft. A traction sheave elevator characterized in that a machine base for supporting a vertical load of a drive machine and a reinforcing member for supporting a horizontal load are provided, and the drive machine is supported by the machine base in a vibration-proof structure. The counterweight between the car moving along the car guide rail, the counterweight moving along the counterweight guide rail, a pair of hoisting ropes on which the car and the counterweight are suspended, and the wall of the car and the elevator shaft In a traction sheave elevator equipped with a drive mechanical device including a traction sheave that engages with a hoisting rope at the upper end of the guide rail, the counterweight guide rail and the beam on the upper part of the elevator shaft are connected in a vertical direction by a joint column The machine base frame is provided, and the machine base supporting the vertical load of the drive machine device and the joint pillar are connected to the machine base frame and the axial direction of the drive machine device is connected via the upper end portion of the drive machine device. A reinforcing member for supporting a horizontal load is provided to prevent the drive machine device from being vertically prevented. Traction sheave elevator, characterized in that supported by the machine base in the structure.   The counterweight between the car moving along the car guide rail, the counterweight moving along the counterweight guide rail, a pair of hoisting ropes on which the car and the counterweight are suspended, and the wall of the car and the elevator shaft In a traction sheave elevator including a drive mechanical device including a traction sheave that engages with a hoisting rope at an upper end of a guide rail, the counterweight guide rail is provided to extend to an upper beam of the elevator shaft. A traction sheave elevator characterized in that a machine base for supporting a vertical load of a drive machine and a reinforcing member for supporting a horizontal load are provided, and the drive machine is supported by the machine base in a vertical vibration isolation structure.

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