WO2019069455A1

WO2019069455A1 - Elevator hoisting machine and method for lifting hoisting machine

Info

Publication number: WO2019069455A1
Application number: PCT/JP2017/036498
Authority: WO
Inventors: 大輔岡田; 良直高橋; 慎太郎長井; 雅大天野; 靖征小出; 聖史深貝; 岳広加藤
Original assignee: 三菱電機株式会社
Priority date: 2017-10-06
Filing date: 2017-10-06
Publication date: 2019-04-11

Abstract

This elevator hoisting machine has a hoisting machine body and a base plate. The hoisting machine body has a first guide member and a second guide member. The first guide member and the second guide member are respectively attached to one and the other side surfaces of the hoisting machine body in the radial direction. The first guide member and the second guide member respectively form, with the hoisting machine body, a first space through which a first main lifting cable is inserted and a second space through which a second main lifting cable is inserted. The base plate is fixed to the lower part of the hoisting machine body, and has first eye bolts through which the first main lifting cable is inserted and second eye bolts through which the second main lifting cable is inserted.

Description

Elevator hoisting machine and lifting machine lifting method

The present invention relates to a hoist having a sheave on which a main rope of an elevator car is wound, and a method of lifting a hoist.

Conventionally, the positional relationship of the elevator car and the balance omori is determined by the design of the elevator car and the hoistway in which the balance omori moves up and down. The positional relationship between the car and the balance omori varies depending on the specifications of the elevator and the design conditions of the building. Then, the hoisting machine and the Thorase car are arranged based on the positional relationship of the car and the balance omori.

As the arrangement of the hoisting machine, there are one installed in a machine room on the hoistway and one installed in the upper part in the hoistway. Since the hoisting machine is heavy, it is necessary to secure a space for lifting the hoisting machine. However, due to architectural design, it may be necessary to install the hoist in a small space. Then, depending on the building, it may not be possible to secure a sufficient space for lifting the hoisting machine with a chain block at the top of the hoisting machine.

Moreover, in the case of the repair of the existing elevator, the existing winding machine may be replaced with a new winding machine. At this time, when the height of the new winding machine is higher than the height of the existing winding machine, lifting of the winding machine may be difficult.

For this reason, after fixing a winding machine on a machine bed, there is a thing which jacks up a machine bed with a jack device and installs an antivibration device between a machine bed and a machine base (for example, patent document 1) reference). In addition, in a hoisting machine unit in which a mounting beam and a hoisting machine are connected to a machine beam, a lifting head is disposed on the upper surface of the mounting beam to reduce the height necessary for lifting (for example, Patent Document 2).

Patent No. 5847239 gazette JP 2007-182270 A

However, in the case of patent document 1, in order to jack up the machine bed including a winding machine with several jack apparatuses, the subject that time was required for installation of a winding machine occurred. Further, in the case of Patent Document 2, it was necessary to prepare a dedicated jig according to the pitch of the two machine beams. Furthermore, there is a problem that a space necessary for handling is required because the hoisting machine unit including the two machine beams is lifted.

The present invention has been made to solve the problems as described above, and the ceiling at the place where the hoisting machine is installed is low, and the winding allowance can not be sufficiently secured. An elevator hoisting machine and a method of lifting the hoisting machine, which make it possible to securely install the machine.

The elevator hoisting machine according to the present invention is disposed on a machine base and includes a hoisting machine main body and a base plate, and the hoisting machine main body includes a first guide member and a second guide member. And the first guide member is attached to one side surface of the winding machine main body in the radial direction, and a first space through which the first lifting main rope is inserted between the first guide member and the winding machine main body The second guide member is attached to the other radial side surface of the hoist main body, and a second space through which the second lifting main rope is inserted between the second guide member and the hoist main body The base plate is fixed to the lower portion of the hoist body, and the base plate is provided below the first guide member with a first set of eyebolts passing through the first lifting main rope. The base plate has a second set of eyebolts below the second guide member and through which the second lifting main rope is inserted.

In the present invention, the elevator hoisting machine is lifted by a plurality of eyebolts disposed on the base plate, so that the ceiling at the place where the elevator hoisting machine is installed is low and the lifting allowance of the elevator hoisting machine is sufficient. Even if it can not be secured, the elevator hoisting machine can be lifted and installed.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the elevator apparatus in which the winding machine for elevators in Embodiment 1 of this invention was installed. 1 is a perspective view showing an elevator hoisting machine of Embodiment 1; FIG. It is a figure which shows the state which attached the main rope for lifting to the winding machine for elevators of Embodiment 1. FIG. It is the figure which compared the lifting position of the winding machine for elevators of Embodiment 1, and the conventional lifting position. BRIEF DESCRIPTION OF THE DRAWINGS It is the figure which looked the winding machine for elevators of Embodiment 1 from the side.

Hereinafter, preferred embodiments of the elevator hoisting machine according to the present invention will be described with reference to the drawings.

Embodiment 1
FIG. 1 is a view showing an example of an elevator apparatus 100 in which an elevator hoisting machine 10 according to Embodiment 1 is installed. FIG. 2 is a perspective view showing the elevator hoisting machine 10 according to the first embodiment. FIG. 3 is a view showing a state in which the first lifting main rope 60 and the second lifting main rope 61 are attached to the elevator hoisting machine 10 of the first embodiment.

As shown in FIG. 1, the elevator apparatus 100 has a hoistway 110 in which the car 20 moves up and down, and a machine room 120 provided above the hoistway 110. In the machine room 120, the elevator hoisting machine 10 and the Thorase car 50 of the first embodiment are disposed. A main rope 40 for the car is wound around the elevator hoisting machine 10 and the Solase car 50. The car 20 is attached to one end side of the car main rope 40, and the balance omori 30 is attached to the other end side of the car main rope 40.

As shown in FIG. 2, a machine base 150 is disposed on the floor 130 of the machine room 120. The machine base 150 is formed of a pair of

steel members

150A and 150B arranged in parallel at intervals. The

steel materials

150A and 150B each have a plurality of bolt holes 151.

The elevator hoisting machine 10 is formed of a hoisting machine main body 11 and a base plate 14. The hoist body 11 has a sheave 12. A pair of eyebolts 15A for lifting the elevator hoisting machine 10 through the lifting main ropes 62 is attached to the upper part of the hoisting machine main body 11. The pair of eyebolts 15A is used when lifting the elevator hoisting machine 10 by a conventional method.

Guide members

13A and 13B are attached to both side surfaces in the radial direction of the hoist main body 11, respectively. As shown in FIG. 2, the

guide members

13A and 13B are attached at a position above the center of gravity position G of the elevator hoisting machine 10. In FIG. 2, the

entire guide members

13A and 13B are located above the center of gravity G, but the

entire guide members

13A and 13B need to be located above the center of gravity G. Absent. The upper ends of the

guide members

13A and 13B may be located above the center of gravity G.

The

guide members

13A and 13B are each formed in a U-shape. The guide member 13A is attached to one side surface in the radial direction of the hoist body 11. The guide member 13A forms a first gap with the hoist body 11. On the other hand, the guide member 13B is attached to the other side surface in the radial direction of the hoist body 11. The guide member 13 </ b> B forms a second gap with the other radial side surface of the hoist body 11.

A first lifting main rope 60 is passed through a first gap formed between the guide member 13A and the hoist body 11. Then, the second lifting main rope 61 is passed through the second gap formed between the guide member 13B and the hoist body 11.

The shapes of the

guide members

13A and 13B are not limited to the U shape. The shape may be any shape that can form a space for guiding the first lifting main rope 60 and the second lifting main rope 61. For example, the shape of the

guide members

13A and 13B may be a tubular or annular member. In addition, the

guide members

13A and 13B may be previously assembled to the hoist body 11 at a factory, or may be assembled at the site where the elevator hoisting machine 10 is lifted.

The base plate 14 is assembled in advance to the bottom of the hoist body 11 at the factory. The base plate 14 has a pair of eyebolts 15B below the guide member 13A. The base plate 14 also has a pair of eyebolts 15C below the guide member 13B. Further, a plurality of bolt holes 14A are formed in the outer peripheral portion of the base plate 14. In addition, although each

eyebolt

15A, 15B, 15C is distinguished here, these specifications are the same. Each eyebolt 15B and each eyebolt 15C may be beforehand assembled to base plate 14 in a factory, or may be assembled at the site where elevator hoisting machine 10 is lifted.

The lifting method of the elevator hoisting machine 10 according to the first embodiment configured as described above will be described using FIGS. 3 and 4. 3 shows a state in which a sling belt 70 as a first lifting main rope 60 and a sling belt 71 as a second lifting main rope 61 are attached to the elevator hoisting machine 10 according to the first embodiment. FIG. 4 is a front view of the elevator hoisting machine 10 of FIG.

First, the sling belt 70 is passed through a pair of eyebolts 15B attached to the base plate 14.
Next, the suspension holes 70A formed at both ends of the sling belt 70 are passed through the space formed between the guide member 13A and the hoist body 11.
Next, the sling belt 71 is passed through the pair of eyebolts 15C attached to the base plate 14.
Next, the suspension holes 71A formed at both ends of the sling belt 71 are passed through the space formed between the guide member 13B and the hoist body 11.
Next, the suspension holes 70A of the sling belt 70 and the suspension holes 71A of the sling belt 71 are hooked on a chain block (not shown).
The elevator hoisting machine 10 is lifted according to the above procedure.

After lifting the elevator hoisting machine 10, the elevator hoisting machine 10 is moved to the upper side of the machine base 150. Then, the

sling belts

70 and 71 are removed. Thereafter, bolts (not shown) are inserted into and fastened to the bolt holes 14A of the base plate 14 and the bolt holes 151 of the

steel materials

150A and 150B constituting the machine base 150, and the elevator winding machine 10 is mounted on the machine base 150. Fix to

In addition, the procedure which lifts the winding machine 10 for elevators can be changed suitably. For example, after one hanging hole 70A of the sling belt 70 is passed through the space formed between the guide member 13A and the winding machine main body 11, it is passed through each eyebolt 15B, and the guide member 13A and winding are wound up again. It may be returned to the space formed between the machine body 11 and the machine body 11.

As described above, in the elevator hoisting machine 10 according to the first embodiment, the base plate 14 is fixed to the bottom of the hoisting machine body 11, and the pair of eyebolts 15B and the pair of eyebolts 15C are attached to the base plate 14. ing. Then, when lifting the elevator hoisting machine 10, the sling belt 70 is passed through each eyebolt 15B and the sling belt 71 is passed through each eyebolt 15C.

This makes it possible to lift the elevator hoisting machine 10 at a lower suspension point than when using the pair of eyebolts 15A. Therefore, even if the ceiling of the machine room 120 is low and the elevator hoisting machine 10 can not be lifted with the pair of eye bolts 15A, each eye bolt 15B and each eye bolt 15C can be used for lifting. .

Further, in the elevator hoisting machine 10 according to the first embodiment, the

guide members

13A and 13B are attached above the center of gravity of the elevator hoisting machine 10. Then, the sling belt 70 passed through each eyebolt 15B is guided by the guide member 13A. In addition, the sling belt 71 passed through each eyebolt 15C is guided by the guide member 13B.

Thus, even when each eyebolt 15B and each eyebolt 15C are disposed at a position lower than the center of gravity of the elevator hoisting machine 10 and lifted up, the elevator hoisting machine 10 is lifted with a stable posture. It can be heavy. Furthermore, by using the main ropes for lifting as the

sling belts

70 and 71, sliding with the

guide members

13A and 13B can be alleviated.

Second Embodiment
FIG. 5 is a side view of elevator hoisting machine 10 according to the second embodiment. The elevator hoisting machine 10 of the second embodiment differs from the elevator hoisting machine 10 of the first embodiment in the shape of the

guide members

13A and 13B. The other configuration is the same as that of the first embodiment.

In the elevator hoisting machine 10 according to the second embodiment, the

guide members

13A and 13B are extended to a position facing the rope groove 12A of the sheave 12. And guide

members

13A and 13B serve as a member which prevents that car main rope 40 separates from rope groove 12A. Thus, the number of parts constituting the elevator hoisting machine 10 can be reduced.

Reference Signs List 10 elevator hoisting machine, 11 hoisting machine main body, 12 sheaves, 12A rope groove, 13A guide member (first guide member), 13B guide member (second guide member), 13a first gap (first) Space 1), 13b Second gap (second space), 14 Base plate, 14A bolt hole, 15A eye bolt, 15B eye bolt (first eye bolt), 15C eye bolt (second eye bolt), 20 baskets, 60 1st lifting main rope, 61 2nd lifting main rope, 70, 71 sling belt, 70A, 71A Hanging hole.

Claims

An elevator hoist, disposed on a machine base, comprising:
The hoisting machine main body has a base plate, and the hoisting machine main body has a first guide member and a second guide member,
The first guide member is attached to one side surface of the winding machine main body in the radial direction, and a first space through which a first lifting main rope is inserted is set between the first guide member and the winding machine main body. Form
The second guide member is attached to the other radial side surface of the winding machine main body, and a second space through which the second lifting main rope is inserted between the second guide member and the winding machine main body Form
The base plate is fixed to a lower portion of the hoist body.
The base plate has, under the first guide member, a first set of eyebolts through which the first lifting main rope passes.
The base plate has, under the second guide member, a second set of eyebolts through which the second lifting main rope is inserted.
Elevator hoisting machine.
The elevator hoisting machine according to claim 1, wherein the upper end of the first guide member and the upper end of the second guide member are disposed at a position higher than the center of gravity of the elevator hoisting machine.
At least one of the first guide member and the second guide member is located at a position opposite to a sheave of a sheave provided on the hoisting machine main body for winding a car main rope. Attached to prevent the car main rope from coming off the sheave,
An elevator hoist according to claim 1 or 2.
A method for lifting an elevator hoist according to any one of claims 1 to 3,
Pass the first lifting main cord through the first set of eyebolts,
Passing the first lifting main rope through the first space between the first guide member and the hoist body;
Pass the second lifting main cord through the second set of eyebolts,
Passing the second lifting main rope through the second space between the second guide member and the hoist body;
The hoisting of the elevator is performed using the respective suspension holes formed at both ends of the first lifting main rope and the respective suspension holes formed at both ends of the second lifting main rope. Lift the machine,
Lifting method of elevator hoisting machine.
A sling belt is used as each of the first lifting main rope and the second lifting main rope,
A method of lifting an elevator hoist according to claim 4.