KR100728419B1 - Elevator equipment - Google Patents

Abstract

High speed and low noise can be achieved by 1: 1 roping the elevator without machine room. In addition, the mechanism can be accommodated even in the upper gap of the narrow hoistway and the holding space of the hoisting machine can be secured. In addition, the hoisting rope is made of a flexible rope or a small diameter and high-strength steel rope to make the diameter of the hoisting machine, the sheave and the pulley small, and the turning pulley is arranged parallel to the hoistway ceiling to reduce the height dimension of the turning pulley. Suppress On the other hand, a turning pulley that is not parallel to the hoistway ceiling surface is disposed in the gap between the hoistway wall and the cage, thereby deviating from the definition of the cage top gap dimension of the cage, thereby contributing to space saving.

Description

Elevator device {ELEVATOR EQUIPMENT}             

The present invention relates to the layout technology of an elevator without machine room.

Fig. 11 is a sheave and a turning pulley of a winding machine on the upper part of a hoistway of an elevator without a conventional machine room shown in Japanese Unexamined Patent Publication No. 2000-255933 (Seconds 7, 8 pages, Figs. 15 and 16). An elevation view showing the relationship between the turning pulleys, and FIG. 12 is a longitudinal sectional view of the elevation. In the figure, a cage 3 suspended by a hoisting rope 15 wound around the sheave 4a of the hoist 4 at the upper part of the hoistway, and a balance weight which lifts and opposes the cage. 2: 1 roping elevator apparatus with 9. In this example, the hoist 4, the sheave 4a and the first pivoting pulley 5 are arranged parallel to the hoist ceiling to be rotated vertically by the second pivoting pulley 6 and pivotally beneath the cage. The cage 3 is hung around two suspended pulleys 18 attached thereto. On the other hand, the counterweight 9 rotates the hoisting rope 15 from the sheave 4a vertically by the pivoting pulley 7 on the counterweight side, and winds the counterweight on the suspending pulley 19 pivotally attached to the counterweight. It is made to hang.

Thus, the winding machine, the sheave, and the 1st turning pulley are arrange | positioned in parallel with the hoistway ceiling surface in order to make a cage upper clearance small. However, since the hoist is disposed on the ceiling of the hoistway, an operator climbs on the ceiling of the cage chamber and is forced to work upwards at the time of maintenance inspection, thereby increasing the work load. As another means, there is a method of providing a device for opening and closing the hoisting machine down with the mounting support frame for maintenance work, but there is a problem in that the cost is high. In a conventional machineless elevator, in the case of 1: 1 roping, it is difficult to store the hoisting machine or the turning pulley in the narrow upper gap, so that it is easy to arrange the hoisting machine or the turning pulley on the side of the cage, and the hoisting machine becomes smaller. 2: 1 roping is commonly used. In recent years, the development and production of highly flexible ropes and small diameter and high-strength steel ropes have made it possible to reduce the diameter of the hoisting machine, the sheave and the turning pulleys, but when combined with only 2: 1 roping, the rotational speed of both the hoisting machine and the turning pulley increases. And noise may occur.

Summary of the Invention

This invention is made | formed in order to solve such a problem, and it aims at obtaining the elevator which minimized the dimension of a hoistway as 1: 1 roping, and also secured the repair space of a hoisting machine.

As a means for solving the above problems, a cage for elevating along a pair of guide rails installed in the hoistway, a hoisting rope with one end hooked to the cage and an elevating weight lifting the other end along another guide rail, and the hoisting rope A 1: 1 roping elevator apparatus having a hoist with a sheave having a sheave, wherein the hoist is placed close to the hoistway wall side above the hoistway, and the sheaves are arranged not parallel to the hoistway ceiling and caged from the sieve. The plurality of ropes in the furnace are moved to the center position of the cage by two or more of the first and second pivoting pulleys parallel to the hoist ceiling, and also rotate in the vertical direction via the third pivoting pulley, thereby allowing the ropes of the cage to rotate. It is configured to hang the cage down the rope to the fixed part.

Moreover, in the above-mentioned elevator apparatus, the 1st turning pulley and the 2nd turning pulley are a combination with a different diameter.

In addition, a hoist having a cage for elevating along a pair of guide rails installed in the hoistway, a hoisting rope with one end caught by the cage and the other end being lifted along the other guide rail, and a sheave winding the hoist rope An elevator device of 1: 1 roping provided, wherein the hoist is disposed close to the hoistway wall side of the hoistway, and the sheave is arranged not parallel to the hoistway ceiling, and the plurality of ropes from the sheave to the cage are hoisted on the hoistway. It is moved in two directions by the first turning pulley and the second turning pulley parallel to, and rotates in the vertical direction by the third and fourth turning pulleys for lowering the rope on two rope fixing portions on both sides of the cage, It is configured to hang the cage.

In the above-mentioned elevator apparatus, the hoisting machine, the sheave and the turning pulley are miniaturized, and a plurality of turning pulleys which are not parallel to the hoistway ceiling are arranged in the gap between the cage and the hoistway wall.

In each of the above elevators, the hoisting rope, which has excellent flexibility or a small diameter and high-strength steel rope, is applied to miniaturize the hoisting machine, the sheave and the turning pulley.

1 is a plan view of an upper part of a hoistway showing a first embodiment of the present invention;

2 is a longitudinal cross-sectional view of the hoistway of FIG. 1;

3 is a plan view of an upper part of a hoistway showing a second embodiment of the present invention;

4 is a longitudinal cross-sectional view of the hoistway of FIGS. 3 and 5;

5 is a plan view of an upper part of a hoistway showing a third embodiment of the present invention;

6 is a plan view of an upper part of a hoistway showing a fourth embodiment of the present invention;

7 is a longitudinal cross-sectional view of the hoistway of FIGS. 6 and 8;

8 is a plan view of an upper part of a hoistway showing a fifth embodiment of the present invention;

9 is a plan view of an upper part of a hoistway showing a sixth embodiment of the present invention;

10 is a longitudinal cross-sectional view of the hoistway of FIG. 9;

11 is a plan view of an upper part of a hoistway showing an elevator without a conventional machine room;

12 is a longitudinal cross-sectional view of the hoistway of FIG. 11;

Next, an Example is demonstrated about this invention.

Example 1

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view showing a relationship between a hoisting sheave and a turning pulley in an upper part of a hoistway according to the first embodiment of the present invention, and Fig. 2 is a longitudinal sectional view of the hoistway in Fig. 1. In the drawing, a cage 3 which moves up and down along a pair of guide rails 10 installed in a hoistway, and a counterweight 9 which is caught by one end of the cage 3 and the other end moves up and down along another guide rail 11. The hoisting machine 13 is equipped with a hoisting rope 13 hooked on the hoisting rope and a hoisting machine 4 having a sheave 4a wound around the hoisting rope, wherein the hoisting machine 4 is placed on the hoistway wall side of the hoistway. The sieve 4a is arranged so as not to be parallel to the hoist ceiling, and the plurality of ropes 13 from the sieve 4a to the cage are parallel to the hoist ceiling. And two or more divided by two pivoting pulleys (6) and moved to the center position of the cage, and by turning the rope in the vertical direction by the third pivoting pulley (8), the rope is fastened to the rope fixing part of the cage The cage was configured to hang.

Therefore, according to this layout, 1: 1 roping can be made even in the upper gap of the narrow hoistway, and even if the number of hoisting ropes is large, two or more plural first turning pulleys and second turning pulleys can be used to make a rope fleet angle. ), That is, the angle at which the rope is separated from the rope groove of the sheave or the turning pulley can be reduced.

In addition, since the rope pleat angle can be reduced, uneven wear of the rope groove can be suppressed and noise can be reduced, thereby extending the life of the rope.

Example 2

3 is a plan view corresponding to FIG. 1 showing a second embodiment. 4 is a longitudinal cross-sectional view of the hoistway of FIG. 3. One 1st turning pulley 5, while having 2nd turning pulley 6 and 3rd turning pulley 6a, ie, making 1st-3rd turning pulleys in total, other than that Since the same reference numerals are the same or equivalent to those of the above-described structure, the description is omitted.

Therefore, in addition to the effect of the above-described embodiment, the first turning pulley 5 is one, while the second turning pulley 6 and the third turning pulley 6a are combined, thereby turning the turning pulley 5. Since the shafts and bearing beams of the swing pulley 6 and the swing pulley 6a do not fall apart and interfere with each other, the distance between the top and bottom of the pulleys can be closer to each other, and the rope pleat angle can be made smaller. It works.

Example 3

FIG. 5 is a plan view corresponding to FIG. 3 showing a third embodiment, and FIG. 4 is a longitudinal cross-sectional view of the hoistway of FIG. 5. In Example 2, the 2nd turning pulley 6 and the 3rd turning pulley 6a were combined with respect to the 1st turning pulley 5, However, in this case, the rope unwound from the hoisting sheave 4a in consideration of a layout. The diameter of the pivoting pulley 5 is small so that 13 is suitable for the pivot angle to the center position, and the diameter of the pivoting pulley 6b is one instead of the two of the pivoting pulleys 6, 6a. The diameter of the second pivoting pulley 6b is selected so as to match the pivot angles of the sheave 4a and the pivoting pulley 5 so that the rope angle for each rope groove of the third pivoting pulley 8 is adjusted. It is limited to the allowable range. Except for the same, the same reference numerals refer to the same or equivalent, and the description is omitted.

Therefore, the optimum rope pleat angle can be achieved by changing the diameters of the first turning pulley and the second turning pulley by selecting and combining the diameters of the turning pulleys corresponding to the intervals of the turning angles of the ropes. In addition, as in the above-described embodiment, since the shafts, bearing beams, and the like of the first swing pulley 5 and the second swing pulley 6b do not interfere with each other, the gap between the upper and lower swing pulleys can be approached more. There is an effect that can be made smaller.

Example 4

FIG. 6 is a plan view corresponding to FIG. 1 showing a fourth embodiment, and FIG. 7 is a longitudinal sectional view of the hoistway in FIG. According to this drawing, an elevator of 1: 1 roping having a cage for elevating, a hoisting rope with one end caught on the cage and the other end being lifted up and down against the cage, and a hoist having a sheave wound around the hoisting rope. In the apparatus, the hoist (4) is placed close to the hoistway wall side of the hoistway, and the sheaves (4a) are arranged not parallel to the hoistway ceiling surface, and the plurality of ropes from the sieve (4a) to the cage ( 13) is divided into a first pivoting pulley 5 and a second pivoting pulley 6 parallel to the ceiling of the hoistway, and a third pivoting pulley 8a to lower the rope to two rope fixing portions on both sides of the cage. And the 4th turning pulley 8b, it turned so that it might turn vertically and hang a cage.

Therefore, it is possible to achieve 1: 1 roping even in the upper gap of the narrow hoistway and to apply the suspension point of the cage at two points surrounding the center of the cage so that the cage is not subjected to the unloading load and thus can be applied to a large-capacity elevator. Moreover, even if the number of hoisting ropes is large, the rope pleat angle can be reduced because the ropes are divided into the first turning pulley and the second turning pulley. Furthermore, by reducing the rope pleat angle, the wear of the rope groove can be suppressed and the noise can be reduced, thereby extending the rope life.

Example 5

FIG. 8 is a plan view corresponding to FIG. 6 showing a fifth embodiment, and FIG. 7 is a longitudinal sectional view of the hoistway in FIG. The hoisting machine, the sheave and the turning pulley are miniaturized, and all of the plurality of turning pulleys not parallel to the hoist ceiling are disposed in the gap between the cage and the hoist wall. Other than that is the same as mentioned above, since the same code | symbol shows the same thing or equivalent, description is abbreviate | omitted.

Thus, in addition to the effects of the above-described embodiments, by placing the swing pulley in the gap between the cage and the hoistway wall, it becomes a position that does not overlap on the plane of the cage, and does not deviate from the definition of the upper gap of the cage, so that the lower top gap There is also an advantage that can be stored.

Example 6

FIG. 9 is a plan view corresponding to FIG. 8 showing the sixth embodiment, and FIG. 10 is a longitudinal sectional view of the hoistway in FIG. In this embodiment, in the elevator, the hoisting rope is applied to a rope having excellent flexibility or a small diameter high-strength steel rope to miniaturize the hoisting machine, the sheave and the turning pulley. Other than that is the same as above-mentioned, description is abbreviate | omitted. As described above, the miniaturization of the hoisting machine, the sheave and the turning pulley by applying a small diameter high strength steel rope is obviously applicable in Examples 1 to 4 as well.

Therefore, the elevator without a machine room can be saved more space.

Since this invention is comprised as demonstrated above, it shows an effect as described below.

A hoist having a cage for elevating along a pair of guide rails installed in the hoistway, a hoisting rope with one end hanging on the cage and the other end being lifted along another guide rail, and a sheave winding the hoisting rope. In a 1: 1 roping elevator apparatus, the hoist is placed close to the hoistway wall side of the hoistway, and the sheave is disposed not parallel to the hoistway ceiling, and the plurality of ropes from the sieve to the cage are mounted on the hoistway ceiling. It is divided into two or more parallel first pivoting pulleys and second pivoting pulleys and moved to the center position of the cage, and the rope is pivoted vertically by the third pivoting pulley, and the rope is hooked to the rope fixing part of the cage. Configured to hang.

Therefore, according to the above layout, it is possible to perform 1: 1 roping even in the upper gap of the narrow hoistway, and even if the number of hoisting ropes is large, the plurality of first turning pulleys allows the ropes to deviate from the rope pleat angle, that is, the rope groove of the sheave or the turning pulley. The angle to make it can be suppressed small.

In addition, since the rope pleat angle can be reduced, the wear of the rope groove can be suppressed and the noise can be reduced, thereby extending the rope life.

Claims (5)

A single cage having a cage for elevating along a pair of guide rails installed in the hoistway, a hoisting rope with one end hooked on the cage and the other end being lifted along the other guide rail, and a single sheave winding the hoisting rope. In an elevator device of 1: 1 roping with a hoist, The hoist is placed close to the hoistway wall side of the hoistway, and the sheave is arranged not parallel to the hoistway ceiling, and the plurality of ropes from the sieve to the cage have a first pivoting pulley and a second parallel to the hoistway ceiling. It is configured to be divided into two or more by the turning pulley to move to the center position of the cage, and to rotate the rope in the vertical direction by the third turning pulley to hang the rope by hanging the rope on the rope fixing part of the cage. Elevator device. The method of claim 1, Characterized in that the diameter of the first swing pulley and the second swing pulley are different Elevator device. A single cage having a cage for elevating along a pair of guide rails installed in the hoistway, a hoisting rope with one end hooked on the cage and the other end being lifted along the other guide rail, and a single sheave winding the hoisting rope. In an elevator device of 1: 1 roping with a hoist, The hoist is placed close to the hoistway wall side of the hoistway, and the sheave is disposed not parallel to the hoistway ceiling, and the plurality of ropes from the sieve to the cage are first pivot pulley and the second swiveling parallel to the hoistway ceiling. It is divided into two directions by pulleys, and the rope is rotated in the vertical direction by a third turning pulley and a fourth turning pulley for lowering the rope to two rope fixing portions on both sides of the cage, so as to hang the cage. Characterized Elevator device. The method of claim 3, wherein Characterized in that the hoisting machine, the sheave and the turning pulley are miniaturized, and a plurality of turning pulleys which are not parallel to the ceiling of the hoistway are disposed in the gap between the cage and the hoistway wall. Elevator device. The method according to any one of claims 1 to 4, In each of the above elevators, the hoisting rope, the sheave and the turning pulley are miniaturized by applying a rope having excellent flexibility to the hoisting rope or a high-strength steel rope having a small diameter. Elevator device.

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