JPH06102508B2 - Elevator installation device - Google Patents

Description

The present invention relates to a 2: 1 roping type elevator installation device.

[Conventional technology]

First, the structure of a 2: 1 roping type elevator will be described with reference to FIG. In FIG. 2, 1 is a hoistway, 2 is a car, 2a is an upper beam of the car 2, and 3 is a car 2 center line B of the upper beam 2a.
A hoisting vehicle mounted at a position, 4 is a hoisting machine installed above the hoistway 1, and 5 is a hoisting center D of a hoisting beam 4b of the hoisting machine 4.
One end of the wire rope is connected to the position, is wound around the net wheel 4a of the hoisting machine 4, and raises and lowers the car 2 by the 2: 1 roping method through the hoisting wheel 3, 6 guides the up and down movement of the car 2. It is a guide rail. Further, C is the deviation between the center line B of the car 2 and the center A of the sheave 4a.

Next, a conventional elevator installation device will be described with reference to FIGS. FIG. 3 is a vertical sectional front view of a hoistway showing a conventional elevator installation apparatus disclosed in, for example, JP-A-58-47783, and FIG. 4 is a vertical sectional front view showing a state of a car above the hoistway. . In FIGS. 3 and 4, the same reference numerals as those in FIG. 2 indicate the same or corresponding portions, 1a and 1b are the top and bottom of the hoistway 1, and 1c is the hoistway wall. The main rails 6 are connected in series, and the upper end portions thereof are suspended from the top wall 1a of the hoistway 1 by suspension metal fittings 6a. 7 is a balance vehicle for installation, which is attached to the upper beam 2a of the car 2 instead of the suspension vehicle,
8 is an electric winch fixed to the lower part of the hoistway 1, 9 is a bracket for fixing the guide rail 6 to the hoistway wall 1c, 10
Is a pulley device including the hoisting machine 4.

Next, the operation of this installation device will be described. The lowermost rail 61 of the guide rail 6, which is temporarily erected with its upper end suspended from the top 1a wall of the hoistway 1 and its lower end fixed to the bottom 1b wall of the hoistway 1, is attached to the hoistway wall by the bracket 9. Fix at 1c. Next, connect the two wire ropes 5 to the sheave of the pulley device 10.
It is connected to the car 2 via a balance wheel 7 wound around 4a, and the car 2 is engaged with the rail 61 at the lowermost stage of the guide rail 6. Then, an operator gets into the car 2, the car 2 is used as a workbench, and the electric winch 8 is driven to sequentially raise the car 2 from the lower part to the upper part of the hoistway 1, and the guide rail 6 temporarily set up. Perform centering and fixing work.

[Problems to be solved by the invention]

However, in the conventional installation device as described above, in the case of the elevator of the 2: 1 roping system, the center line B of the car 2 of the upper beam 2a on which the balance wheel 7 is mounted and the center A of the net wheel 4a are arranged. Due to the shift C in the left-right direction, a rope angle α is generated in the wire rope 5 as shown in FIG. 4, and the car 2 presses the guide rail 6 with the pressing force E in the arrow direction in FIG. The pressing force increases in proportion to the rope angle α, and the rope angle α increases as the car 2 goes to the upper part of the hoistway 1. Therefore, when the operator rides on the car 2 to perform the centering operation of the guide rail 6 in the temporary standing state, it becomes difficult to position the guide rail 6 at the upper part of the hoistway 1 due to the pressing force E, and the work efficiency is improved. However, there was a problem that

The present invention has been made to solve the above problems, and even in the upper part of the hoistway, the guide rail centering and fixing work is facilitated without pressing the car guide rail, and the work efficiency is improved. The purpose is to obtain an elevator installation that can be enhanced.

[Means for solving problems]

An elevator installation device according to the present invention comprises a pulley device installed above a hoistway, which comprises a hoisting machine and a pulley attached to a rope stopper of the hoisting machine, and one end of which is connected to a winch. Winding the middle part of each of the two wire ropes wound around the sheave and pulley of the hoisting machine,
The other ends of the two wire ropes are connected to a balance wheel.

[Action]

In the elevator installation device according to the present invention, two wire ropes are respectively wound around the sheave of the hoisting machine and the pulleys provided in the rope stopping portion, and the car is hung by the balance wheel. As a result, the balance vehicle attached to the center line position of the car with two wire ropes will be hung evenly on the left and right,
It is possible to prevent the car from exerting a pressing force on the guide rail.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.
FIG. 1 is a vertical sectional front view of the upper part of the hoistway of this embodiment.
In FIG. 1, the same reference numerals as those in FIGS. 2 to 4 indicate the same or corresponding parts, and 11 is the rope stop center D on the rope stop beam 4b of the main hoist 4 of a 2: 1 roping type elevator. It is a temporary pulley that is placed and pivoted on the pulley 11. The pulley 11 and the hoisting machine 4 installed in the machine room on the top 1a of the hoistway 1 constitute a pulley device 10, which is fixed to the lower part of the hoistway. The two wire ropes 5 each having one end connected to a winch (not shown in FIG. 1) are provided at the center A of the sheave 4a of the hoisting machine 4.
One wire is wound around each temporary pulley 11 and the other end of the wire rope 5 is connected to the main cage 2 via a balance wheel 7. It should be noted that the configuration other than the above-mentioned configuration of this embodiment and the third configuration
It is similar to that shown in FIGS.

In the installation device of the embodiment configured as described above, the two wire ropes 5 connected to the winch are attached to the car 2 center line B of the upper beam 2a at the position of the balance wheel 7 for the hoisting machine. The center of the sheave 4a of No. 4 and the center D of the tug 11 by the temporary pulley 11 are to be hung evenly on the left and right, and even if the car 2 is positioned above the hoistway 1, an unbalanced load is not applied. Rail 6
No pressing force is applied to. Therefore, by using the installation apparatus of this embodiment, the centering and fixing work of the guide rail 6 can be easily performed, and the installation work efficiency of the elevator can be improved.

〔The invention's effect〕

As described above, in the elevator installation device according to the present invention, the two wire ropes are respectively wound around the sheave of the hoisting machine and the temporary sheaves arranged in the rope stopping parts, one by one. Since the car is hung from the counter car, the pushing force of the guide rail by the car of the 2: 1 roping type elevator is eliminated, and the centering and fixing work of the guide rail is facilitated and the work efficiency is improved. However, there is an effect that the installation cost of the elevator can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of an upper part of a hoistway showing an elevator installation apparatus according to an embodiment of the present invention, and FIG. 2 is a vertical sectional front view of an upper part of the hoistway showing a 2: 1 roping type elevator.
FIG. 3 is a vertical sectional front view of a hoistway showing a conventional elevator installation device, and FIG. 4 is a vertical sectional front view of an upper part of the hoistway showing a state of a car by a conventional installation device at the upper part of the hoistway. 1 is a hoistway, 2 is a car, 4 is a hoist, 4a is a sheave, 4b is a rope beam, 5 is a wire rope, 6 is a guide rail, 7 is a balance wheel, 10 is a pulley device, and 11 is a temporary installation Pulley. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A pulley device having a 2: 1 roping type elevator hoist installed above a hoistway and a temporary pulley mounted on a rope stopper of the hoist, and
A permanent basket that serves as a workbench, a temporary balance wheel mounted on this basket, and a winch fixed to the lower part of the hoistway,
One end is connected to this winch, one middle part is wound around the sheave of the hoisting machine and one temporary sheave, and the other end is lifted by lifting the car through the balance wheel. An elevator installation device, comprising: two wire ropes.