JP2004099270A - Elevator and its renewal construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly safety and economical elevator and its renewal construction method for facilitating lifting work in an existing building. <P>SOLUTION: According to the renewal construction method for the elevator, a gearless winding machine (14) and a driving sheave (15) are separately carried in a machine room (2) on the top of a shaft, and the gearless winding machine (14) and the driving sheave (15) separately carried in are assembled on a machine head (12). <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an elevator provided on a hoistway and a renewal method for the elevator.
[0002]
[Prior art]
In general, elevators installed in high-rise buildings are evaluated based on various factors that take safety, design, etc. into account, as well as technical levels such as high speed, power saving, control intelligence, and driving accuracy. , Its overall commercial value has been determined.
[0003]
In addition, recent elevators have remarkably improved their service functions due to the adoption of electronic technology, and have become more modern in terms of design, and have become remarkably popular as safe and comfortable transport equipment.
[0004]
On the other hand, remodeling, refurbishment, and renewal work for aging elevators are also indispensable. Elevator users or installation workers are required to replace the existing elevator with the new one. Various techniques are required to improve the safety and workability of the vehicle.
[0005]
5 and 6 are schematic diagrams illustrating a schematic configuration of a general elevator. A machine room 2 is provided above a hoistway 1 provided in a building, and a hoisting machine 3 is arranged in the machine room 2. The hoisting machine 3 includes a main motor 4, a reduction gear 5, and a driving sheave 6. A main rope 7 is wound around the driving sheave 6, a car 8 is suspended on one side, and the other is deflected to the other side via a sheave 9. A counterweight 10 is suspended. The hoisting machine 3 is arranged on a machine beam 11 via a machine bed 12. The main motor 4 is controlled by a control device housed in a control panel 13.
[0006]
When performing a renewal (renovation) work on the elevator configured as described above, basically, the hoisting machine 3 and the control panel 13 which are devices in the machine room 2 are replaced and used as a new elevator. Depending on the demands of the user and the like, the design of the car 8 and the items in the hoistway 1 are also exchanged. The supplies in the machine room 2 need to have a considerable strength to suspend the heavy basket 8 and the counterweight 10, so that they become heavy and they are placed on the top of the existing building. It is general that the work of lifting up to a certain machine room 2 is a troublesome work by a crane and many human hands. As for the hoisting machine 3, there is also a construction method in which only the main motor 4 of the existing hoisting machine 3 is replaced and the hoisting machine 3 is used as a new elevator. There is a problem that the speed reduction gear 5 is deteriorated, and continuous use may not be possible.
[0007]
[Problems to be solved by the invention]
When proceeding with the renewal (renovation) work as described above, it is necessary to take measures such as lifting heavy loads in an existing building or using a crane using a road near the building. In addition to causing bother and trouble to the users, there is no factor that can reduce the number of man-hours required for the workers on the construction side, so it was impossible to return the cost to customers.
[0008]
In the current renewal method, although a certain degree of demand can be met by exchanging only the motor 6 of the hoisting machine 3 described above, the original renewal (renovation) that aims to improve the reliability of the entire elevator system. ) There was a problem that a part contrary to the purpose of the construction was generated.
[0009]
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 which is easy to lift in an existing building, is excellent in safety and economy, and a renewal method thereof. Aim.
[0010]
[Means for Solving the Problems]
To achieve the above object, an elevator according to the invention according to claim 1 includes a gearless hoist installed on a machine bed in a machine room provided on a hoistway, and a sheave installed on the machine bed. A support, a drive sheave rotatably mounted on the sheave support, a main rope wound around the drive sheave and driven by a gearless hoist, and a basket suspended from one end of the main rope in the hoistway. And a counterweight suspended from the other end of the main rope in the hoistway.
[0011]
According to a second aspect of the present invention, in the elevator according to the first aspect, a control panel for controlling the gearless hoist is arranged on a machine bed.
[0012]
In the elevator renewal method according to the third aspect of the present invention, the gearless hoist and the drive sheave are separately loaded into a machine room provided on the hoistway, and the separately loaded gearless hoist and the drive sheave are loaded. It is characterized in that it is assembled on a machine bed in a machine room.
[0013]
The invention according to claim 4 is the renewal method according to claim 3, wherein a control panel for controlling the gearless hoist is also arranged on the machine bed.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0015]
As shown in FIGS. 1 and 2, the main motor 4, the reduction gear 5, and the drive sheave 6 of the existing hoisting machine 3 shown in FIGS. 5 and 6 are detached from the machine bed 12 and placed on the machine bed 12. A gearless hoist 14 and a drive sheave 15 are newly installed. The drive sheave 15 is rotatably supported by a sheave support 16 erected on the machine bed 12. The gearless hoisting machine 14, the driving sheave 15, and the sheave support 16 are previously loaded as separate components into the machine room 2 by an existing elevator, and are assembled on the machine bed 12 in the machine room 2. A main rope 7 is wound around the drive sheave 15, a car 8 is suspended on one of the main ropes 7, and the other of the main ropes 7 is led out via a gearless hoisting machine 14 and a deflecting sheave 9. A counterweight 10 is suspended from the section. However, if the length of the main rope 7 is significantly changed as compared with the case of FIGS. 5 and 6, the main rope 7 is also replaced with another one. The machine bed 12 is provided with a drive sheave 14 to be newly installed, and a position of a pit of the main rope 7 from the machine room 2 to the hoistway 1, and an alignment between the existing deflecting sheave 9 and the main rope 7 of the gearless hoist 14. Is achieved. For this reason, it is only necessary to install a new component that has been divided and separated and lifted in the machine room 2 as a separate part on the machine bed 12, and there is no effect on the components other than the machine room 2. As a result, the number of work steps can be reduced as a result, and the work can be performed easily and inexpensively.
[0016]
FIG. 3 and FIG. 4 show a device arrangement configured according to another embodiment. In this embodiment, the control panel 13 which is originally separately installed in the machine room 2 can be installed and fixed on the machine bed 12, and the layout design of the machine room 2, the installation man-hour and the number of supplies can be reduced. Become.
[0017]
As described above, according to the embodiment of the present invention, the gearless hoist, the drive sheave, and the control panel are separately loaded into the machine room and assembled on the machine bed in the machine room. Therefore, in order to carry heavy objects into the machine room during renewal work, a crane with a smaller capacity is sufficient, less labor is required, and lifting work with less time constraints is possible by using the existing elevator. Can be achieved, and inexpensive renewal work can be realized in a flexible process.
[0018]
【The invention's effect】
According to the present invention, a gearless hoist and a drive sheave are separately carried into a machine room, and assembled on a machine bed in the machine room. This makes it possible to easily and inexpensively carry out lifting work with less restrictions in terms of time.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an elevator according to an embodiment of the present invention.
FIG. 2 is a left side view of a main part of the apparatus of FIG.
FIG. 3 is a schematic structural diagram of an elevator according to another embodiment of the present invention.
FIG. 4 is a left side view of a main part of the apparatus shown in FIG. 3;
FIG. 5 is a diagram showing a device arrangement of a general elevator.
FIG. 6 is a left side view of a main part of the device of FIG. 5;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hoistway 2 Machine room 3 Hoist 4 Main motor 5 Reduction gear 6 Drive sheave 7 Main rope 8 Basket 9 Deflection sheave 10 Counterweight 11 Machine beam 12 Machine bed 13 Control panel 14 Gearless hoist 15 Drive sheave 16 Sheave Support

Claims (4)

A gearless hoist installed on a machine bed of a machine room provided on the hoistway, a sheave support installed on the machine bed, and a drive sheave rotatably mounted on the sheave support, A main rope wound around the driving sheave and driven by the gearless hoist; a main rope suspended from one end of the main rope in the hoistway; and a main rope suspended from the other end of the main rope in the hoistway. Elevator with lowered counterweight. The elevator according to claim 1, wherein a control panel for controlling the gearless hoist is disposed on the machine bed. The gearless hoist and the drive sheave are separately loaded into a machine room provided on the hoistway, and the separately loaded gearless hoist and the drive sheave are assembled on a machine bed in the machine room. Elevator renewal method. 4. The renewal method according to claim 3, wherein a control panel for controlling the gearless hoist is also arranged on the machine bed.

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