JP4214719B2 - elevator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator in which a hoisting machine and a main sheave can be easily replaced.
[0002]
[Prior art]
An example of a conventional elevator will be described with reference to the drawings. FIG. 1 is a schematic view of an elevator without a machine room, in which 1 is a car, 2 and 3 are pulleys, 4 is a counterweight, 5 is a pulley, and 6 and 7 are at the upper end of a hoistway 10. An attached direction changing pulley, 11 is a main sheave of the hoisting machine 12, and 13 is a fixing base fixed to the pit 14, which fixes the hoisting machine 12. Reference numerals 15 and 16 denote buffers for the car 1 and the counterweight 4, respectively. A main rope 20 is wound around the main sheave 11 and each pulley and both ends are fixed to the upper end of the hoistway 10. A hook 21 is fixed to the ceiling 22 of the hoistway 10. It is used when lifting.
[0003]
When it becomes necessary to replace the main sheave 11 or the hoisting machine 12 due to long-term use, the counterweight 4 is placed on the buffer 16 and fixed, and the car 1 is suspended by the hook 21 and then the main sheave 11 and the hoisting machine 12 are wound. The upper machine 12 was exchanged. Alternatively, the car 1 is placed on the buffer 15 and the counterweight 4 is suspended.
[0004]
[Problems to be solved by the invention]
However, in the case of an elevator that does not have a machine room at the top of the hoistway 10 as shown in FIG. 1, it is difficult to hang the car 1 and the counterweight 4 on the hook 21, and there is a problem that requires a lot of time and labor. .
[0005]
[Means for Solving the Problems]
In the present invention, the hoisting machine 12 and the main sheave 11 can be removed by fixing both the side of the main rope 20 entering the main sheave 11 and the side exiting from the main sheave 11 to the fixing base 13 of the pit 14. It is.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. FIG. 2 is a detailed explanatory view of the vicinity of the hoisting machine 12. In the figure, reference numerals 31 and 32 denote stands with shoes 31a and 32a fixed to the ends, and 33 denotes a bracket with shoes 33a fixed to both ends.
In the present embodiment, when the main sheave 11 and the hoisting machine 12 are replaced, a pair of stands 31 and 32 are erected on the fixed base 13. The bracket 33 is fixed to the stand 31 with the main rope 20 in between, and the other side of the bracket 33 is fixed to the stand 32 with the main rope 20 on the other side in between. Thereby, the main rope 20 is fixed to the pit 14, that is, the hoistway side through the fixed base 13.
[0007]
Then, the main sheave 11 and the hoisting machine 12 are exchanged. When the replacement work is completed, the stands 31 and 32 and the bracket 33 are removed, and the car 1 and the counterweight 4 can be raised and lowered.
[0008]
As described above, according to the present embodiment, it is not necessary to hang the car 1 or the like on the hook 21, so that the replacement work of the main sheave 11 and the hoisting machine 12 is easy and the working time can be shortened.
[0009]
In the embodiment, the stands 31 and 32 and the bracket 33 are fastened with bolts and nuts, but other means such as a hydraulic jack may be used. Moreover, the main rope 20 can be clamped more reliably by providing the recesses matching the main rope 20 in the shoes 31a, 32a, 33a.
Further, in FIG. 1, the hoisting machine 12 is fixed to the pit 14 via the fixed base 13, but the same applies to an elevator of the type in which the hoisting machine 12 is installed in the middle or upper part of the hoistway 10. The present invention can be implemented.
[0010]
Moreover, in the said embodiment, although the winding machine 12 of the main sheave 11 wound so that the main rope 20 entered from the upper part and went out upwards is used, the main rope 20 enters from the side and comes out to the side. Even so-called horizontal pulling type can be implemented in the same way. Furthermore, even if the main rope 20 enters from the lower side and exits downward, the hoisting machine can be moved downward after the main rope 20 is fixed, for example, the hoisting machine is suspended by the beam in the hoistway. In the above embodiment, the main rope 20 is used. However, the present invention is not limited to this, and various members such as a flat belt (herein referred to as tension members). The same can be applied to an elevator using a). Furthermore, the present invention can be applied to an elevator having a machine room.
[0011]
【The invention's effect】
As described above, according to the present invention, the main sheave and the hoisting machine can be easily replaced.
[Brief description of the drawings]
FIG. 1 is a schematic view of an elevator without a machine room to which the present invention is applied.
FIG. 2 is a detailed explanatory view of the vicinity of the hoisting machine of FIG. 1;
[Explanation of symbols]
1 Car 4 Counterweight 10 Hoistway 11 Main Sheave 12 Hoisting Machine 14 Pit 20 Main Rope 31, 32 Stand 33 Bracket

Claims (2)

A tension member with a cage suspended on one side and a counterweight on the other side, a main sheave around which the tension member is wound, a hoisting machine that drives the main sheave, and a fixing that fixes the hoisting machine to the pit In an elevator equipped with a stand ,
A pair of stands to which shoes are fixed; brackets to which shoes are fixed at both ends; and the stand is attached to the fixing base, and the tension member is sandwiched between the shoes of the stand and the shoes of the bracket. the elevator, characterized in that both sides leaving the sides and main sheave entering the main sheave of said tensile member is configured to be fixed to the fixing base. A tension member with a cage suspended on one side and a counterweight on the other side, a main sheave around which the tension member is wound, a hoisting machine that drives the main sheave, and a fixing that fixes the hoisting machine to the pit In an elevator equipped with a stand ,
A pair of stands to which shoes are fixed; brackets to which shoes are fixed at both ends; and the stand is attached to the fixing base, and the tension member is sandwiched between the shoes of the stand and the shoes of the bracket. Thus, the hoisting machine and the main sheave can be removed by fixing both the side of the tension member that enters the main sheave and the side that exits the main sheave to the fixing base .

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