CN112299192A

CN112299192A - Method for mounting guide rail fixing device and guide rail fixing device

Info

Publication number: CN112299192A
Application number: CN202010518223.2A
Authority: CN
Inventors: 金山泰裕; 深泽奏
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 2019-07-31
Filing date: 2020-06-09
Publication date: 2021-02-02
Also published as: JP2021024651A; JP7111663B2

Abstract

The invention aims to provide a rail fixing device which can fix a guide rail at a proper position even if a building structure has arrangement errors. In the method for installing the guide rail fixing device, a mark of the center position of a rail is left on a flat fixing plate in an arrangement state that the flat fixing plate is overlapped with a building structure body at a preset position, then a roughly L-shaped wall side bracket is placed on the flat fixing plate at a flat position, the mark of the fixing plate is overlapped with the center of the wall side bracket at an adjusting position, then the fixing plate is welded with the vertical part of the wall side bracket, then the fixing plate is welded with the building structure body at the preset position of the guide rail fixing device, the horizontal part of the rail side bracket is placed on the horizontal part of the wall side bracket, the position is adjusted to overlap the center of the wall side bracket with the center of the rail side bracket, and then the wall side bracket and the horizontal part of the wall side bracket are welded.

Description

Method for mounting guide rail fixing device and guide rail fixing device

Technical Field

The present invention relates to a method of installing a guide rail fixing device for fixing a guide rail of an elevator to a column of a building having a steel bar structure, and a guide rail fixing device.

Background

As a background art in this field, there is patent document 1. In the abstract of the document, there is described a rail fixing device as a technical means for solving the problem of "enabling a connection beam that connects a column and a column installed in a hoistway to be fixed in a state where the connection beam does not protrude from the column in a direction outward of the column, thereby reducing installation work and manufacturing cost", the rail fixing device including: a pair of columns 2 made of profile steel erected in an elevator hoistway 1; a pair of car-side rails 5 that stand in the hoistway and guide the car 3; a pair of counterweight-side rails 6 that are erected in the hoistway and guide the counterweight 4; brackets 7, 8 for fixing the car-side rail and the counterweight-side rail to the column; a connecting beam 12 fixed to the column side of the bracket and connected between the pair of columns; a welding part 16 which is implemented on the upper surface of the joint surface of the connecting beam and the upright column and is used for fixing the connecting beam and the upright column; and a rail bracket fixing clamp 20' provided on the lower surface of the joint surface between the connecting beam and the column and fixing the joint surface between the connecting beam and the column.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 2008-7312

Disclosure of Invention

Technical problem to be solved by the invention

According to the structure of the monorail bracket 8 shown in fig. 3 in paragraph 0011 of patent document 1, the car-side rail 5 is fastened with the vertical side portion of the L-shaped car-side rail fixing metal 9 by the rail clamp 13, the bolt 14 and the bolt 15. The monorail bracket 8 also fixes the lower surface of the horizontal side portion of the car-side rail fixing metal member 9 to the horizontal side portion of the L-shaped connecting beam 12 by welding. As is clear from the description of "and fig. 3 and the like of the document, in patent document 1, the rail fixing device is manufactured by welding and fixing the connection beam and the car-side rail fixing bracket, but this is premised on the installation position of the pillar on the building drawing without any error. Therefore, even if the installation error of the column is clarified when the rail is attached, the rail cannot be fixed at an appropriate position by a rail fixing device prepared in advance. In this case, it is necessary to rework the rail fixing device on site in consideration of installation errors of the column, or to manufacture the rail fixing device again by taking the installation errors into consideration.

Accordingly, an object of the present invention is to provide a rail fixing device capable of fixing a rail at an appropriate position without causing difficulty in installation work, a long construction period, and an increase in cost, even in a building in which a construction structure such as a column has an installation error.

Technical scheme for solving technical problem

In order to solve the above problems, the installation method of the guide rail fixing device of the present invention comprises the steps of: a step of leaving a mark of a track center position on a flat-plate-shaped fixing plate in an arrangement state where the fixing plate is overlapped with a building structure body at a preset setting position of a guide rail fixing device; a step of placing a substantially L-shaped wall side bracket on the fixing plate placed flat at a flat position, adjusting a position so that the mark of the fixing plate coincides with the center of the wall side bracket, and then welding the fixing plate to a vertical portion of the wall side bracket; a step of welding the fixing plate to the building structure at a predetermined position where the rail fixing device is provided; and a step of placing a horizontal portion of a rail side bracket on the horizontal portion of the wall side bracket, and adjusting a position so that the wall side bracket coincides with a center of the rail side bracket, and then welding the wall side bracket and the horizontal portion of the wall side bracket to each other.

Effects of the invention

According to the rail fixing device of the present invention, even in a building in which a construction structure such as a column has an installation error, the rail can be fixed at an appropriate position without making the mounting work difficult, the construction period long, and the cost increase.

Drawings

Fig. 1 is a schematic configuration diagram of an elevator apparatus installed in a building of a steel bar structure.

Fig. 2 is a side view of the rail fixing device of embodiment 1.

Fig. 3 is a front view of the rail fixing device of embodiment 1.

Fig. 4 is a plan view of the rail fixing device of embodiment 1.

Fig. 5 is a diagram showing a method of mounting the rail fixing device according to embodiment 1.

Fig. 6 is a diagram showing a method of mounting the rail fixing device according to embodiment 1.

Fig. 7 is a side view of the rail fixing device of embodiment 2.

Fig. 8 is a front view of the rail fixing device of embodiment 2.

Fig. 9 is a plan view of the rail fixing device of embodiment 2.

Detailed Description

Next, an embodiment of the present invention will be described with reference to fig. 1 to 7.

[ example 1]

Fig. 1 is a schematic configuration diagram showing an elevator apparatus 100 installed in a hoistway of a building having a steel structure. In fig. 1, the direction perpendicular to the paper surface is referred to as the x direction, the left direction is referred to as the y direction, and the lower direction (the direction of gravity) is referred to as the z direction.

In the elevator apparatus 100 of fig. 1, guide rails 2 are provided on the left and right sides of a car 1, and the guide rails 2 are fixed to a building structure (hereinafter referred to as "column 3") such as a reinforcing bar of a building via a plurality of guide rail fixing devices 10. Then, the car 1 is stably raised and lowered in the hoistway by using the two rails as the rails of the guide device 1a provided above and below the side surface of the car 1.

Here, 4 is a main hoist rope having one end connected to the upper part of the car 1 and the other end connected to the upper part of a balance weight, not shown, 5 is a hoisting machine disposed in a machine room in the upper part of the hoistway and used to hoist the

main hoist rope

4, 6 is a balance rope having one end connected to the lower part of the car 1 and the other end connected to the lower part of the balance weight, and 7 is a balance rope pulley disposed in the bottom part of the hoistway and around which the balance rope 6 is wound, and these are well-known structures, and therefore, the detailed description thereof will be omitted below.

< guide rail fixing device 10>

In the elevator apparatus 100 of fig. 1, when the guide rail 2 is fixed in the vertical direction, the car 1 is lifted and lowered stably. Therefore, in the guide rail fixing apparatus 10 of the present embodiment, the fixing position of the guide rail 2 to the column 3 can be easily adjusted on site, so that the verticality of the guide rail 2 can be easily increased. Next, the detailed structure of the guide rail fixing device 10 of the present embodiment will be described with reference to fig. 2 to 4.

First, a configuration in which the vicinity of the rail fixing device 10 surrounded by the broken line a in fig. 1 is viewed from the positive direction of the x-axis will be described with reference to the side view of fig. 2. Furthermore, the guide rail 2 is omitted here. The column 3 is, for example, H-shaped steel having parallel flange portions, and 2 columns are provided in the front-rear direction of the paper. Hereinafter, of the 2 columns 3, a column located on the side outward from the sheet (positive x-axis direction) is referred to as a column 3R, and a column located on the side inward from the sheet (negative x-axis direction) is referred to as a column 3L.

As shown here, the rail fixing device 10 of the present embodiment is obtained by integrally forming a fixing plate 11, a wall side bracket 12, and a rail side bracket 13. The fixing plate 11 is a highly rigid rectangular flat metal plate fixed across the column 3R and the column 3L. The wall-side bracket 12 is a substantially L-shaped metal plate, and is fixed to the fixing plate 11 in a posture in which the horizontal portion 12h is an upper side and the vertical portion 12v is a lower side. The rail-side bracket 13 is a substantially L-shaped metal plate, and is fixed to the upper surface of the horizontal portion 12h of the wall-side bracket 12 in a posture in which the vertical portion 13v is an upper side and the horizontal portion 13h is a lower side.

Next, a configuration of the rail fixing device 10 of fig. 2 viewed from the positive y-axis direction will be described with reference to the front view of fig. 3. As shown here, the fixing plate 11 is disposed across the left and

right columns

3L and 3R, and is fixed to the

columns

3L and 3R by 4 horizontal welding portions 11 w. Since a sufficient welding distance is secured for each welding portion 11w in the fixing plate 11, the fixing plate 11 can be firmly fixed to the

columns

3L and 3R.

The wall-side bracket 12 is disposed substantially at the center of the fixing plate 11 and is fixed to the fixing plate 11 by 3-position welding portions 12 w. Since the welding portions 12w are provided on both sides of the wall-side bracket 12, even if a large impact is applied from the guide rail 2, the impact can be resisted.

Next, a configuration of the rail fixing device 10 of fig. 2 when viewed from the negative direction of the z-axis will be described with reference to the plan view of fig. 4. As shown here, the rail-side bracket 13 is placed substantially at the center of the wall-side bracket 12, and is fixed to the wall-side bracket 12 by the 2-part fasteners 14 and the 2-part welding portions 13 w. The wall-side bracket 12 and the rail-side bracket 13 are provided with orthogonal long holes, and the relative positions of the wall-side bracket 12 and the rail-side bracket 13 can be finely adjusted by loosening the fasteners 14 before welding the welded portion 13 w. The guide rail 2 is fixed to the vertical portion 13v of the rail-side bracket 13 by a rail clamp or the like, not shown, but the fixing method is well known and therefore, a detailed description thereof is omitted.

Here, as shown in fig. 3 and 4, the curved surface portions (R portions) of the wall-side bracket 12 and the rail-side bracket 13 are not welded. Therefore, the fixing plate 11, the wall bracket 12, and the rail bracket 13 are firmly fixed by welding with stable quality at the contact portions of the respective planes.

< method for installing guide rail fixing apparatus 10>

Next, a method of attaching the rail fixing device 10 will be described with reference to fig. 5, 6, 3, and 4 in this order.

First, as shown in fig. 5, the installation worker places marks (such as a mark line 11 c) at the center position of the track on the fixing plate 11 in an arrangement state where the left long welding hole 11h of the fixing plate 11 overlaps the column 3L and the right long welding hole 11h overlaps the column 3R at the predetermined installation position of the rail fixing device 10. The track center position is a position for vertically fixing the guide rail 2 in each guide rail fixing device 10.

Next, after the installation worker moves to a flat place where there is a sufficient working space, as shown in fig. 6, the fixing plate 11 is laid flat, and the vertical portion 12v of the wall side bracket 12 is overlapped thereon. Then, the position of the wall side bracket 12 is adjusted so that the center of the wall side bracket 12 coincides with the mark line 11c, and then the welding portions 12w of 3 portions shown in the figure are welded. Since the welding process is performed by welding the planes facing downward, the welding process can be performed safely and easily even by an installation worker having low skill in the welding process. The processing may be performed, for example, on the bottom of the hoistway or on a scaffold temporarily installed in the hoistway.

Next, the mounting operator returns to the predetermined installation position of the rail fixing device 10, and welds the upper surface of the fixing plate 11 and the 4-position welded portions 11w of the upper surface of the long welding hole 11h shown in fig. 3. Since the welding process here is performed by welding the flat surfaces facing downward, as in the welding process of fig. 6, the welding process can be performed safely and easily even by an installation worker having low skill in the welding process.

Finally, as shown in fig. 3, the installation worker places the horizontal portion 13h of the rail-side bracket 13 on the horizontal portion 12h of the wall-side bracket 12, positions the rail-side bracket 13 with respect to the wall-side bracket 12 with the fastener 14, and then performs welding at the welding portions 13w of 2 lateral portions as shown in fig. 4. Since the welding process here is performed by welding the flat surfaces facing downward, as in the welding process of fig. 6, the welding process can be performed safely and easily even by an installation worker having low skill in the welding process.

In the rail-side bracket 13 of the present embodiment, the horizontal portion 13h and the vertical portion 13v can be replaced with each other. Therefore, one of the lengths corresponding to the horizontal distance between the guide rail 2 and the pillar 3 can be selected as the horizontal portion 13 h. For example, when the initial horizontal portion 13h is too long, the length of the horizontal portion 13h can be adjusted by replacing the short initial vertical portion 13v with a new horizontal portion 13h, and the guide rail 2 can be fixed at an appropriate position.

According to the guide rail fixing apparatus of the present embodiment described above, since the installation worker can adjust the dimensions of the guide rail fixing apparatus safely and easily at the installation site of the elevator apparatus, the guide rail can be fixed to an appropriate position even in a building in which the installation error of the column is present, without causing difficulty in the installation work, a long construction period, and an increase in cost.

[ example 2]

Next, embodiment 2 of the present invention will be described with reference to fig. 7 to 9. Fig. 7, 8, and 9 are a side view, a front view, and a plan view of the rail fixing device 10 of the present embodiment, and are views of the rail fixing device 10 viewed from the same direction as fig. 2, 3, and 4 of embodiment 1. Hereinafter, some of the reference numerals overlapping those of the drawings of example 1 are omitted for illustration and description.

The rail fixing device 10 of embodiment 1 is used in a position spanning the upright 3L and the upright 3R without the intermediate beam 3M, but the rail fixing device 10 of the embodiment is used in a position with the intermediate beam 3M.

Therefore, in the rail fixing apparatus 10 of embodiment 1, the fixing plate 11 needs to be welded and fixed across the column 3L and the column 3R, but in the rail fixing apparatus 10 of this embodiment, the fixing plate 11 can be welded and fixed to the bending cramp 15 attached to the upper surface of the intermediate beam 3M.

As shown in fig. 7, the bending cramp 15 of the present embodiment is a metal plate having a substantially L-shaped cross section in which a vertical portion 15v and a horizontal portion 15h are arranged at right angles. Therefore, when the rail fixing device 10 is attached to the bending cramp 15, first, in a state where the long welding holes 11 on the left and right sides of the fixing plate 11 are overlapped on the vertical portion 15v of the bending cramp 15, marks (the mark line 11c and the like) of the center position of the rail are left on the fixing plate 11. The mounting steps after leaving marks such as the mark line 11c are the same as those in example 1, and therefore, the repetitive description thereof is omitted.

As described above, in the present embodiment, the bending cramp 15 of the intermediate beam 3M is used as the building structure to which the plate 11 is welded. Such a structure can also provide the same effect as a building structure using the column 3 as the welding/fixing plate 11.

Description of the reference symbols

100 elevator apparatus

1 cage

1a guide device

2 guide rail

3. 3L, 3R upright post

3M middle beam

4 main sling

5 traction machine

6 balance cable

7 balance cable pulley

10 guide rail fixing device

11 fixing plate

11w weld

11c mark line

Long hole for 11h welding

12 wall side support

12w weld

12v vertical part

12h horizontal part

13 track side support

13w weld

13v vertical part

13h horizontal part

14 fastener

14b bolt

14n nut

15 bending fastener

15v vertical part

15h horizontal part.

Claims

1. A method of installing a guide rail fixing device for fixing a guide rail of an elevator apparatus, comprising the steps of:

a step of leaving a mark of a center position of a track on a flat plate-shaped fixing plate in an arrangement state where the fixing plate is overlapped with a building structure at a predetermined position where the guide rail fixing device is provided;

a step of placing a substantially L-shaped wall side bracket on the fixing plate placed flat at a flat position, adjusting the position so that the mark of the fixing plate coincides with the center of the wall side bracket, and then welding the fixing plate to the vertical portion of the wall side bracket;

a step of welding the fixing plate to the building structure at a predetermined position where the rail fixing device is provided; and

and a step of placing the horizontal portion of the rail-side bracket on the horizontal portion of the wall-side bracket, and after performing position adjustment so that the center of the wall-side bracket coincides with the center of the rail-side bracket, welding the horizontal portions of the wall-side bracket and the wall-side bracket to each other.

2. The method of installing a guide rail fixing apparatus according to claim 1,

the welding of the fixing plate to the wall side bracket and the welding of the wall side bracket to the rail side bracket are performed by welding respective planes to each other.

3. The method of installing a guide rail fixing apparatus according to claim 2,

the fixing plate is provided with a long hole, and the building structure and the fixing plate are welded to the upper surface of the fixing plate and the upper surface of the long hole.

4. The method of installing a guide rail fixing apparatus according to claim 2,

the plate for fixing is welded to the wall bracket at a side surface of the wall bracket.

5. A guide rail fixing device for fixing a guide rail of an elevator apparatus, comprising:

a flat plate-shaped fixing plate, the welding part of which is connected with the side surface of the building structure;

a substantially L-shaped wall side bracket, the welding part of which is connected with the fixing plate; and

and a substantially L-shaped rail side bracket, wherein the welding part of the rail side bracket is connected with the horizontal part of the wall side bracket.

6. The guide rail fixing apparatus of claim 5,

the welding part of the fixing plate is positioned on the upper surface of the fixing plate and the upper surface of the welding long hole of the fixing plate,

the welding part of the wall-side bracket is located at a side of the wall-side bracket,

the welding portion of the rail side bracket is located on a side surface of the rail side bracket.