WO2023175880A1

WO2023175880A1 - Guide device for installation of hoisting machine, and hoisting machine installation method

Info

Publication number: WO2023175880A1
Application number: PCT/JP2022/012552
Authority: WO
Inventors: 浩基葛城; 隆博西野; 悠人樋野; 祐輔村田
Original assignee: 株式会社日立ビルシステム; 株式会社日立製作所
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2023-09-21
Also published as: JPWO2023175880A1

Abstract

This guide device for the installation of a hoisting machine may be used when installing a hoisting machine unit on guide rails erected in a hoistway. The guide device for the installation of a hoisting machine comprises: a lower bracket attached to the lower part, in the vertical direction, of a hoisting machine unit; and a guide members which are provided to the lower bracket and which slidably engage with guide rails.

Description

Hoist installation guide device and hoist installation method

The present invention relates to a hoist installation guide device and a hoist installation method.

An example of an elevator is a machine room-less elevator that does not have a machine room at the top of the hoistway. BACKGROUND ART In recent years, in machine room-less elevators, a hoisting machine is sometimes installed on a guide rail that guides the raising and lowering of a car and a counterweight.

As a technique for installing such a hoisting machine, there is, for example, the one described in Patent Document 1. Patent Document 1 includes an erecting step of erecting a guide rail in a hoistway, and an attaching step of attaching a guide member that slidably holds the mounting frame with respect to the guide rail to the mounting frame. After the installation process, there is a lifting process in which the hoist is lifted while the mounting frame is slid in the longitudinal direction of the guide rail, and a support base and beam are installed on the guide rail to support the vertical load of the hoist and the mounting frame. There is a fixing process for fixing the machine, and an installation process for installing the mounting frame and hoist on the beam.

International Publication No. 2002-79076

However, there are elevators in which the guide rail does not extend to the top of the hoistway. Furthermore, in the technique described in Patent Document 1, the guide member is installed on the side surface of the hoist. Therefore, in the technology described in Patent Document 1, when the hoist is lifted to the top of the hoistway, the guide member comes off the guide rail, making it difficult to lift the hoist to the top in a stable state. As a result, the efficiency of the hoist installation work was worsening.

The present purpose is to provide a hoisting machine installation guide device and a hoisting machine installation method that can improve work efficiency during hoisting machine installation in consideration of the above problems.

In order to solve the above problems and achieve the objectives, a hoist installation guide device is used when installing a hoist unit on a guide rail erected in a hoistway. The hoist installation guide device includes a lower bracket attached to a lower portion of the hoist unit in the vertical direction, and a guide member provided on the lower bracket and slidably engaged with the guide rail.

Moreover, the method for installing the hoisting machine includes the steps shown in (1) to (3) below.
(1) The process of installing guide rails in the hoistway.
(2) A step of attaching a lower bracket to the lower part of the hoist unit in the vertical direction and slidably engaging the guide member provided on the lower bracket with the guide rail.
(3) A step of lifting the hoist unit by sliding the guide member along the guide rail.

According to the hoisting machine installation guide device and the hoisting machine installation method having the above configurations, it is possible to improve the work efficiency when installing the hoisting machine.

It is a side view of the hoistway showing the installation position of the hoist in the elevator concerning the example of an embodiment. It is a top view of a hoistway. FIG. 2 is a front view showing a state in the middle of lifting a hoist using a hoist installation guide device according to an embodiment. It is a flowchart which shows the installation method of the hoisting machine concerning the example of embodiment. FIG. 3 is a front view showing a state in which the hoist is lifted to a predetermined position.

Hereinafter, a hoisting machine installation guide device and a hoisting machine installation method according to an embodiment will be described with reference to FIGS. 1 to 5. Note that common members in each figure are given the same reference numerals.

1. Embodiment 1-1. Installation position of the hoisting machine First, the installation position of the hoisting machine installed by the hoisting machine installation guide device according to the embodiment (hereinafter referred to as "this example") will be explained with reference to FIGS. 1 to 3. explain.
FIG. 1 is a side view of the hoistway, FIG. 2 is a plan view of the hoistway, and FIG. 3 is a front view showing a state in which the hoist is in the middle of being lifted.

As shown in FIG. 1, the elevator of this example is a so-called machine room-less elevator in which no machine room is provided at the top of the hoistway 50 formed within the building structure. As shown in FIGS. 1 and 2, inside the hoistway 50, there are a pair of car-

side guide rails

40 and 41 that guide the car, a pair of weight-side guide rails 42 that guide a counterweight (not shown), 43 are erected.

Further, as shown in FIG. 2, a plurality of

rail brackets

30, 31, and 32 are installed in the hoistway 50. The first rail bracket 30 and the second rail bracket 31 are installed on the first inner wall 51 of the hoistway 50, and the third rail bracket 32 is installed on the second inner wall 52 of the hoistway 50. The first inner wall 51 and the second inner wall 52 face each other in the left-right direction when viewing the hoistway 50 from the hall side where people and cargo enter and exit.

Further, during the installation work of the hoist unit 1, a work scaffold or a temporary work floor is installed in the hoistway 50 in the space 10 where the car is installed. Various tasks are performed on this work scaffold or temporary work floor. Therefore, it is extremely difficult to lift the hoist unit 1 to the top of the hoistway using the space 10. Note that the space 10 is arranged between the first inner wall 51 and the second inner wall 52.

The first rail bracket 30 and the second rail bracket 31 are spaced apart from each other on the first inner wall 51 in the front-rear direction, which is orthogonal to the up-and-down direction and the left-right direction of the car. A first weight-side guide rail 42 is fixed to the first rail bracket 30. A second weight-side guide rail 43 and a first car-side guide rail 40 are fixed to the second rail bracket 31 . A second car-side guide rail 41 is fixed to the third rail bracket 32. Further, the hoist unit 1 passes between the first weight-side guide rail 42 and the second weight-side guide rail 43 and is lifted to the top of the hoistway 50.

Note that by fixing two guide rails, the second weight-side guide rail 43 and the first car-side guide rail 40, to the second rail bracket 31, the space occupied by the rail brackets in the hoistway 50 can be reduced. This makes it possible to downsize the hoistway 50.

Further, as shown in FIG. 1, the pair of car-

side guide rails

40 and 41 and the first weight-side guide rail 42 extend to the top of the hoistway 50. On the other hand, the second weight side guide rail 43 has its upper end cut off in order to provide a predetermined distance between it and the ceiling 80 of the hoistway 50 (see FIG. 5). It does not extend to near the top. Therefore, the second weight side guide rail 43 is set shorter than the

other guide rails

40, 41, and 42.

The hoisting machine unit 1 is lifted to the top of the hoistway 50 by passing between the first weight-side guide rail 42 and the second weight-side guide rail 43 by the hoisting machine installation guide device 60 described below. Further, as shown in FIG. 3, the hoist unit 1 includes a hoist main body 2, a machine beam 3, and a vibration isolating member 4.

The hoist main body 2 is installed above the machine beam 3 via a vibration isolating member 4. The machine beam 3 is arranged between a first weight-side guide rail 42 and a second weight-side guide rail 43. In this way, by housing the machine beam 3 within the two

main guide rails

42 and 43, it becomes possible to install the hoist main body 2 on the machine beam 3 in advance at the lower part of the hoistway 50. This eliminates the need to integrate the hoist main body 2 and the machine beam 3 at the top of the hoistway 50, reducing work at high places and improving safety.

1-2. Configuration example of hoist installation guide device Next, the configuration of the hoist installation guide device (hereinafter simply referred to as guide device) 60 will be described.
As shown in FIG. 3, the guide device 60 includes an upper bracket 61, a spacer bracket 62, and a lower bracket 63. The upper bracket 61 is attached to the upper part of the hoist main body 2. Further, as shown in FIG. 2, the upper bracket 61 is arranged on the rear side of the hoisting machine main body 2 opposite to the first inner wall 51 side. The upper bracket 61 extends along the front-rear direction. Therefore, the upper bracket 61 is arranged between the first weight-side guide rail 42 and the second weight-side guide rail 43.

Furthermore,

guide members

61a and 61b are attached to both ends of the upper bracket 61, respectively. The two

guide members

61a and 61b protrude from both ends of the upper bracket 61 toward the hoist main body 2. Therefore, the upper bracket 61 and the two

guide members

61a and 61b are formed into a substantially U-shape when viewed from above. Thereby, the upper part of the hoist main body 2 is open. The first guide member 61a is slidably supported by the second weight-side guide rail 43, and the second guide member 61b is slidably supported by the first weight-side guide rail 42.

The spacer bracket 62 is attached to the lower part of the machine beam 3 in the vertical direction. The spacer bracket 62 protrudes downward from the lower part of the machine beam 3 in the vertical direction. A lower bracket 63 is fixed to the lower end of the spacer bracket 62 in the vertical direction, that is, the end opposite to the machine beam 3. Therefore, a space 70 is formed between the lower bracket 63 and the lower surface of the machine beam 3 by the spacer bracket 62.

Similarly to the upper bracket 61, the lower bracket 63 extends along the front-rear direction and is disposed between the first weight-side guide rail 42 and the second weight-side guide rail 43. Furthermore,

guide members

64a and 64b are attached to both ends of the lower bracket 63, respectively. The first guide member 64a is slidably supported by the second weight-side guide rail 43, and the second guide member 64b is slidably supported by the first weight-side guide rail 42.

2. How to Install a Hoist Next, a method for installing the hoist unit 1 using the above-mentioned guide device will be described with reference to FIGS. 3 to 5.
FIG. 4 is a flowchart showing a method for installing the hoisting machine, and FIG. 5 is a front view showing a state in which the hoisting machine is lifted to a predetermined position.

As shown in FIG. 4, an operator first carries products such as the hoist main body 2, machine beam 3,

guide rails

40, 41, 42, 43, etc. to the lower part of the hoistway 50 (step S11). Next, the operator attaches the guide rails 40, 41, 42, 43 to the

rail brackets

30, 31, 32, and stands the guide rails 40, 41, 42, 43 on the hoistway 50 (step S12). Then, the operator positions the guide rails 40, 41, 42, and 43 (step S13).

Next, the operator assembles the hoist main body 2 and the machine beam 3 at the lower part of the hoistway 50 (step S14). That is, the hoist main body 2 is installed above the machine beam 3 via the vibration isolating member 4. Thereby, the hoisting machine unit 1 as shown in FIG. 3 can be assembled. Further, by assembling the hoist main body 2 and the machine beam 3 in advance at the lower part of the hoistway 50, it is possible to reduce work at high places and improve safety.

Next, the guide device 60 is attached to the hoist unit 1 (step S15). That is, an upper bracket 61 is attached to the upper part of the hoist main body 2, and a lower bracket 63 is attached to the lower part of the machine beam 3 via a spacer bracket 62. By performing the installation work of the guide device 60 at the lower part of the hoistway 50, it is possible to reduce work at high places and improve safety. Then, the two

guide members

61a and 61b provided on the upper bracket 61 are slidably engaged with the weight

side guide rails

42 and 43, and similarly, the two

guide members

64a and 64b provided on the lower bracket 63 are engaged with the weight

side guide rails

42 and 43. It is slidably engaged with the side guide rails 42, 43.

Note that the assembling work of the hoisting machine unit 1 and the work of installing the guide device 60 may be performed in advance before carrying it into the hoistway 50.

Next, the hoist unit 1 with the guide device 60 attached is lifted using the lifting machine 56 shown in FIG. 3 (step S16). That is, as shown in FIG. 3, a lifting machine 56 is attached to a hanging hook 55 installed at the top of the hoistway 50. Then, the lifting rope of the lifting machine 56 is connected to a hanging device (not shown) provided on the upper part of the hoisting machine main body 2. Here, the upper bracket 61 of the guide device 60 is arranged on the back side of the hoisting machine main body 2, and the upper part of the hoisting machine main body 2 is open. Thereby, the lifting rope of the lifting machine 56 and the upper bracket 61 can be prevented from interfering with each other, and the work of connecting the lifting rope and the lifting device of the hoisting machine main body 2 can be easily performed.

Then, the hoisting machine 56 is driven to lift the hoisting machine unit 1. At this time, the

plural guide members

61a, 61b, 64a, 64b of the guide device 60 slide on the weight side guide rails 42, 43. In this way, the hoist unit 1 is supported and lifted by the

guide members

61a, 61b, 64a, and 64b provided at the upper and lower parts. As a result, the hoisting machine unit 1 can be lifted while being held by the guide device 60, so that the hoisting machine unit 1 shakes during the lifting operation and comes into contact with the inner wall of the hoistway 50 or other equipment. can be prevented from happening.

As shown in FIG. 5, when the hoist unit 1 is lifted to the top of the hoistway 50, that is, near the ceiling 80, the first guide member 61a of the upper bracket 61 comes off the second weight-side guide rail 43. However, according to the guide device 60 of this example, a lower bracket 63 is provided at the lower part of the machine beam 3 via a spacer bracket 62. Therefore, even if the hoist unit 1 is lifted to the top of the hoistway 50, the

guide members

64a, 64b provided on the lower bracket 63 do not come off the weight side guide rails 42, 43.

Thereby, the hoist unit 1 can be lifted to the top of the hoistway 50 while being held by the guide device 60. In this way, since the hoisting machine unit 1 can be lifted in a stable state until the end, the work efficiency during installation of the hoisting machine unit 1 can be improved.

Next, the machine beam 3 is installed on the weight side guide rails 42 and 43 (step S17). When the installation work of the machine beam 3 is completed, the guide device 60 is removed from the hoisting machine unit 1, and the hoisting machine unit 1 is installed at the top of the hoistway 50, that is, on the weight side guide rails 42 and 43 (step S18 ). Thereby, the installation work of the hoisting machine unit 1 is completed.

In the process of step S17, as shown in FIG. 5,

machine beam receivers

5a and 5b are attached to the lower part of the machine beam 3, and the machine beam 3 is connected to the weight side guide rail 42, via the

machine beam receivers

5a and 5b. Fixed at 43. Here, a space 70 is formed by the spacer bracket 62 between the lower bracket 63 that holds the hoist unit 1 and the machine beam 3. Therefore, the machine beam 3 can be installed without removing the guide device 60 from the hoist unit 1. Thereby, the machine beam 3 can be installed while the hoisting machine unit 1 is stabilized by the guide device 60, so that work efficiency can be improved.

As described above, the guide device 60 is removably attached to the hoist unit 1. Therefore, since the guide device 60 can be repeatedly used as a temporary construction material, the guide device 60 of this example can be used not only when installing a new elevator but also when renewing an existing elevator.

Note that the present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the gist of the invention as set forth in the claims.

In the embodiment described above, an example was described in which the upper bracket 61 was provided on the upper part of the hoist main body 2, but the present invention is not limited to this. For example, the upper bracket 61 may be installed on the side surface of the hoist main body 2, that is, the

guide members

61a and 61b may be provided on the side surface of the hoist main body 2.

Further, although an example has been described in which the space 70 is formed between the machine beam 3 and the lower bracket 63 by the spacer bracket 62, the present invention is not limited to this, and the lower bracket 63 may be directly attached to the lower part of the machine beam 3. Good too. Note that, in consideration of installation workability of the machine beam 3, it is preferable to form the space 70 using the spacer bracket 62.

In addition, although words such as "parallel" and "orthogonal" are used in this specification, these do not mean strictly "parallel" and "orthogonal", but include "parallel" and "orthogonal". , and may also be in a "substantially parallel" or "substantially perpendicular" state within the range where the function can be achieved.

1...Hoisting machine unit, 2...Hoisting machine main body, 3...Machine beam, 4...Vibration isolating member, 5a, 5b...Machine beam receiving material, 30, 31, 32...Rail bracket, 40...First car side guide Rail, 41... Second car side guide rail, 42... First weight side guide rail, 43... Second weight side guide rail, 50... Hoistway, 51... First inner wall, 52... Second inner wall, 55... Hanging hook , 56... Lifting machine, 60... Hoisting machine installation guide device (guide device), 61... Upper bracket, 61a... First guide member, 61b... Second guide member, 62... Spacer bracket, 63... Lower bracket, 64a... First guide member, 64b...Second guide member, 70...Space, 80...Ceiling

Claims

In a hoisting machine installation guide device used when installing a hoisting machine unit on a guide rail installed in a hoistway,
a lower bracket attached to the lower part of the hoist unit in the vertical direction;
a guide member provided on the lower bracket and slidably engaged with the guide rail;
A hoisting machine installation guide device equipped with
The hoisting machine unit includes a hoisting machine main body, and a machine beam disposed below the hoisting machine main body and on which the hoisting machine main body is installed,
The machine beam is fixed to the guide rail via a machine beam receiver,
the lower bracket is fixed to the lower part of the machine beam via a spacer bracket,
The hoist installation guide device according to claim 1, wherein the spacer bracket is fixed to a lower part of the machine beam, protrudes downward in a vertical direction, and forms a space between the lower bracket and the machine beam. .
an upper bracket attached to the upper part of the hoisting machine body in the vertical direction;
a guide member provided on the upper bracket and slidably engaged with the guide rail;
The hoisting machine installation guide device according to claim 2, comprising:
The upper bracket is arranged on the back side of the hoisting machine main body,
The hoisting machine installation guide device according to claim 3, wherein the upper part of the hoisting machine main body in the vertical direction is open.
The hoist installation guide device according to claim 4, wherein the lower bracket, the spacer bracket, and the upper bracket are detachably attached to the hoist unit.
The front guide rail is a pair of weight side guide rails that guide the counterweight,
The hoist installation guide device according to claim 2, wherein the machine beam is arranged between the pair of weight side guide rails.
A process of erecting a guide rail on the hoistway,
a step of attaching a lower bracket to the lower part of the hoist unit in the vertical direction, and slidably engaging a guide member provided on the lower bracket with the guide rail;
lifting the hoist unit by sliding the guide member along the guide rail;
How to install the hoist including.