JP2004168518A - Elevator device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an elevator device that has a small amount of required space in a height direction and can be easily installed in existing hoistway in a configuration for supporting load related to a driving machine by an existing machine pedestal. <P>SOLUTION: The driving machine 6, a first pulley 7, and second and third pulleys 8, 9 are provided on a support frame 4. Then, a car 10 and a counterweight 11 are engaged to one edge side and the other edge side of a main rope 9 wound around the drive sheave of the driving machine 6, and the other end side, respectively, thus supporting load related to the driving machine 6 by the support frame 4 or the like by the existing machine pedestal 3, and canceling load support in the vertical direction by the guide rail of the existing hoistway 1. Additionally, the rotary axis of the driving machine 6 is arranged in a perpendicular direction and is installed at the support frame 4, thus reducing space in a height direction required for installing the driving machine 6 or the like at the upper end section of the existing hoistway 1, and easily securing the top clearance to the car 11. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator device that is removed from an old elevator during repair work and is newly installed on an existing hoistway.
[0002]
[Prior art]
In the renovation work in which the old elevator is removed and a new elevator is installed in the existing hoistway, an elevator drive is conventionally arranged as described below. That is, the support beam is arranged at the upper end of the existing hoistway of the elevator provided with the machine room above. In addition, the existing machine table installed in the machine room and the support beam are connected by the support by a support whose longitudinal length is arranged in the vertical direction.
[0003]
Then, a driving machine is mounted on the support beam, and an elevator car is connected to one end of the main rope wound around the driving sheave of the driving machine, and a counterweight is connected to the other end. In such a configuration, the own weight of the drive unit and the load acting on the drive unit are supported by the existing machine base via the support beams and the support. When the driving machine is energized, the car and the counterweight move up and down in opposite directions via the main rope.
[0004]
[Problems to be solved by the invention]
In the conventional elevator apparatus as described above, the entire load related to the driving machine is supported by the existing machine table, and the vertical load support by the guide rails erected on the hoistway becomes unnecessary. However, since the driving machine is installed on the support beam, a space in the height direction required for installing the driving machine at the upper end of the existing hoistway is required. Therefore, the position of the support beam in the existing hoistway in the height direction is reduced. For this reason, there was a problem that a predetermined top clearance for the elevator car could not be secured, and in some cases, a new elevator could not be installed.
[0005]
The present invention has been made in order to solve such a problem, and an object of the present invention is to provide an elevator apparatus which has a structure in which a load related to a driving machine is supported by an existing machine base and requires a small space in a height direction. And
[0006]
[Means for Solving the Problems]
In the elevator apparatus according to the present invention, the existing hoistway of the elevator in which the machine room is provided above, a support frame horizontally formed at the upper end of the existing hoistway in a rectangular shape on a horizontal projection plane, and one end thereof The other end is connected to the existing machine base installed in the machine room, the other end is connected to the support frame, the drive unit provided on the support frame and the rotation axis is arranged in the vertical direction, and provided on the support frame. The first pulley, which is separated from the driving machine, and whose rotation axis is arranged in the vertical direction, and which is provided on the support frame and is arranged away from the driving machine near an edge on the driving machine side, and the rotation axis is set in the horizontal direction. A second pulley, a third pulley provided on the support frame and spaced from the first pulley near an edge on the first pulley side, and a rotation axis is disposed in a horizontal direction; The second pulley, the first pulley engaged with the car Hung sequentially around the traction sheave and the third sheave driving machine, the other end is provided with main rope engaged in fishing coupling weight of the elevator.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
1 and 2 are views showing an example of an embodiment of the present invention. FIG. 1 is a longitudinal sectional view of an upper end portion of a hoistway, and FIG. 2 is a plan view of a support frame in FIG. In the figure, a machine room 2 is provided above an existing hoistway 1, and an existing machine base 3 is provided in the machine room 2. A support frame 4 having a rectangular shape on a horizontal projection plane is horizontally disposed at an upper end of the existing hoistway 1, and one end of the longitudinal direction is connected to the existing machine base 3, and the other end of the longitudinal direction is connected to the support frame 4. The support members 5 are provided at the four corners of the support frame 4.
[0008]
Further, the driving machine 6 is configured such that the frame and the stator of the motor are integrally formed, the rotor of the motor corresponding to the stator is integrally formed with the driving sheave, and the outer shape in the direction along the rotation axis of the driving sheave. This is a thin hoisting machine having short dimensions, that is, a thin shape. Then, the driving device 6 is installed on the support frame 4, and the rotation axis is arranged near the one side of the support frame 4 in a posture along the vertical direction. In addition, a first pulley 7 having a rotation axis arranged in a vertical direction is provided near the other side of the support frame 5 provided on the support frame 4 and separated from the driving device 6.
[0009]
In addition, a second pulley 8 is provided on the support frame 4 and disposed near the edge of the driving machine 6 side and away from the driving machine 6 and has a rotation axis arranged in a horizontal direction. A third pulley 9, which is provided on the support frame 4 and located near the edge on the first pulley 7 side and separated from the first pulley 7, and whose rotation axis is arranged in the horizontal direction, is installed. Further, a main rope 10 is suspended from the hoistway 1, and one end is connected to a car 11 of an elevator, and is sequentially wound around a second pulley 8, a first pulley 7, a drive sheave of a driving machine 6 and a third pulley 9. The other end is connected to the counterweight 12 of the elevator.
[0010]
In the elevator device configured as described above, the driving device 6, the first pulley 7, the second pulley 8, and the third pulley 9 are installed on the support frame 4. A car 11 is connected to one end of a main rope 10 wound around a driving sheave or the like of the driving machine 6, and a counterweight 12 is connected to the other end. The car 11 and the counterweight 12 move up and down in opposite directions.
[0011]
Then, the entire load related to the driving machine 6 is supported by the existing machine base 3 via the support frame 4 and the support 5, and the vertical load support by the guide rail (not shown) erected on the hoistway is unnecessary. become. In addition, the driving machine 6 composed of a thin hoist is installed on the support frame 4 in a state where the rotation axis is arranged in the vertical direction.
[0012]
For this reason, the space in the height direction required for installing the support frame 4, the driving device 6, the first pulley 7, and the like at the upper end of the existing hoistway 1 can be reduced. Therefore, the installation position of the support frame 4 in the existing hoistway 1 in the height direction is increased, and a top clearance for the car 11 of the elevator can be secured, so that a new elevator can be easily installed.
[0013]
Further, since the winding angle of the main rope 10 around the driving machine 6 can be increased by the first pulley 7 and the third pulley 9, a high traction capability can be easily obtained, and the diameter of the main rope 10 is reduced. be able to. Thereby, the slip of the main rope 10 in the drive sheave of the driving machine 6 is reduced, and a stable driving action can be obtained, and the size of the elevator device can be reduced.
[0014]
Further, the drive 6, the first pulley 7, the second pulley 8, and the third pulley 9 can be mounted on the support frame 4 at the factory, and can be transported to the installation site in this state. Therefore, the amount of work at the installation site can be reduced, and the efficiency of the elevator installation work can be improved.
[0015]
Embodiment 2 FIG.
FIG. 3 is a view showing an example of another embodiment of the present invention, and is a longitudinal sectional view of an upper end portion of a hoistway. Except for FIG. 3, an elevator apparatus is configured in the same manner as in FIGS. 1 and 2 described above. In the drawings, the same reference numerals as those in FIGS. 1 and 2 denote corresponding parts, and a car 11 is provided with a car suspension wheel 13, and a counterweight 12 is provided with a counterweight suspension wheel 14.
[0016]
Further, a main rope 15 is suspended from the hoistway 1 and one end is connected to one side of the support frame 4, and a car suspension wheel 13, a second pulley 8, a first pulley 7, a drive sheave of the driving machine 6, It is sequentially wound around the three pulleys 9 and the counterweight hanging wheel 14, and the other end is connected to the other side of the support frame 4. As a result, the car 11 and the counterweight 12 are hung by the leash by 2: 1 roping.
[0017]
In the elevator apparatus configured as described above, the drive unit 6, the first pulley 7, the second pulley 8, and the third pulley 9 are installed on the support frame 4, and are wound around the drive sheave of the drive unit 6. The car 11 is engaged with one end of the main rope 15 and the counterweight 12 is engaged with the other end. When the driving device 6 is energized, the car 11 and the counterweight 12 move up and down in opposite directions via the main rope 15.
[0018]
Then, the entire load related to the driving machine 6 is supported by the existing machine base 3 via the support frame 4 and the support 5, and the vertical load support by the guide rail (not shown) erected on the hoistway is unnecessary. become. In addition, the driving machine 6 composed of a thin hoist is installed on the support frame 4 in a state where the rotation axis is arranged in the vertical direction. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 and 2 can be obtained in the embodiment of FIG.
[0019]
【The invention's effect】
As described above, the present invention provides, as described above, an existing hoistway of an elevator provided with a machine room above, a support frame arranged in a rectangular shape on a horizontal projection plane and horizontally arranged at an upper end of the existing hoistway, and one end thereof. On the existing machine base installed in the machine room, the other end is connected to a support frame, a support is provided on the support frame, and a drive is provided on the support frame and the rotation axis is vertically arranged. The first pulley, which is separated from the machine and the rotation axis is arranged in the vertical direction, and is provided on the support frame and is arranged away from the drive near the edge on the drive side, and the rotation axis is arranged in the horizontal direction. A second pulley, a third pulley provided on the support frame and located near the edge on the first pulley side, away from the first pulley, and having a rotation axis arranged in a horizontal direction, and an elevator car at one end side. The second pulley, the first pulley, the drive sheave of the driving machine and Hung sequentially around the third pulley, the other end is provided with a the main rope engaged in fishing coupling weight of the elevator.
[0020]
As a result, the driving machine, the first pulley, the second pulley, and the third pulley are installed on the support frame, and the car is suspended at one end of the main rope wound around the driving sheave of the driving machine, and the car is suspended at the other end. The counterweight is engaged. Therefore, the entire load related to the driving machine is supported by the existing machine base via the support frame and the support, and the vertical load support by the guide rails erected on the existing hoistway becomes unnecessary. In addition, the driving machine composed of the thin hoist is installed on the support frame with the rotation axis arranged in the vertical direction. Therefore, the space in the height direction required for installing the support frame, the driving device, the first pulley, and the like at the upper end of the existing hoistway can be reduced. For this reason, the installation position of the support frame in the existing hoistway in the height direction is increased, so that a top clearance for the elevator car can be secured, and there is an effect that the installation of the new elevator is facilitated. In addition, the driving device, the first pulley, the second pulley, and the third pulley are mounted on the support frame at the factory, and can be transported to the installation site in this state. Therefore, there is an effect that the amount of work at the installation site is reduced and the efficiency of the elevator installation work is improved.
[Brief description of the drawings]
FIG. 1 is a view showing a first embodiment of the present invention, and is a longitudinal sectional view of an upper end portion of a hoistway.
FIG. 2 is a plan view of a support frame portion in FIG. 1;
FIG. 3 is a view showing a second embodiment of the present invention, and is a longitudinal sectional view of an upper end portion of a hoistway.
[Explanation of symbols]
1 Existing hoistway, 2 machine room, 3 existing machine stand, 4 support frame, 5 support, 6 drive machine, 7 first pulley, 8 second pulley, 9 third pulley, 10 main rope, 11 cars, 12 suspension Weights, 13 car hanging cars, 14 Weight hanging cars, 15 main ropes.

Claims (2)

The existing hoistway of the elevator provided with a machine room above, a support frame horizontally shaped at the upper end of the existing hoistway having a rectangular shape on a horizontal projection plane, and one end installed in the machine room. A support connected to the machine base, the other end of which is connected to the support frame; a drive provided on the support frame, the rotation axis of which is vertically arranged; and the drive provided on the support frame. And the first pulley whose rotation axis is arranged in the vertical direction, and which is provided on the support frame and is arranged away from the drive near the edge on the drive side, and the rotation axis is in the horizontal direction. A second pulley disposed, a third pulley provided on the support frame and disposed away from the first pulley near an edge on the first pulley side, and a rotation axis is disposed in a horizontal direction, One end is engaged with the elevator car and the second Car, first sheave, hung sequentially around the traction sheave and the third sheave driving machine, the other end an elevator apparatus having a main rope engaged in fishing engagement weight of the elevator. One end of the main rope is connected to one side of the support frame, and the car rope is sequentially wound around the car pulley, the second pulley, the first pulley, the drive sheave of the driving machine, the third pulley, and the counterweight lifting pulley, and the like. The elevator apparatus according to claim 1, wherein an end is connected to the other side of the support frame.

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