WO2017046892A1

WO2017046892A1 - Method for replacing deflector sheave of elevator and deflector sheave replacing tool

Info

Publication number: WO2017046892A1
Application number: PCT/JP2015/076294
Authority: WO
Inventors: 理貴伊藤
Original assignee: 三菱電機株式会社
Priority date: 2015-09-16
Filing date: 2015-09-16
Publication date: 2017-03-23
Also published as: JP6395945B2; CN107949534B; JPWO2017046892A1; CN107949534A

Abstract

This method for replacing the deflector sheave of an elevator includes: a step of placing positioning members (26a, 26b) on the floor and in contact with the deflector sheave shaft (11) of an existing deflector sheave assembly (10); a step of separating the existing deflector sheave assembly from a hoisting machine while the existing deflector sheave assembly is being supported by a support pedestal (24) on a movable platform (23); a step for moving the movable platform along guide members (22a, 22b); a step of replacing the existing deflector sheave assembly with a new deflector sheave assembly; and a step of moving the movable platform (23) below the hoisting machine, bringing the deflector sheave shaft of the new deflector sheave assembly into contact with the positioning members (26a, 26b) so as to position the new deflector sheave assembly, and raising the support pedestal.

Description

Elevator Bending Car Replacement Method and Bending Car Replacement Jig

The present invention relates to a method of exchanging an elevator deflector for exchanging an existing deflector to a new deflector, and a deflector exchanging jig used for the exchanging operation.

In the conventional elevator hoist installation method, a support member is temporarily installed on the floor of the machine room, and the baffle device is mounted on the support member. Then, a pair of machine bases are installed on the floor of the machine room, and the hoisting machine is installed on the machine bases. Then, the deflector device is connected to the hoist and the support member is removed. The height of the support member is adjusted to such a height that the deflecting wheel device contacts the lower surface of the hoisting machine base (for example, see Patent Document 1).

Also, in the conventional elevator motor detaching and assembling apparatus, when the hoisting machine is removed or assembled, the work table is coupled to the installation table. On the work table, two guide rails parallel to the axial direction of the electric motor of the hoisting machine and a support base that is movable along the guide rails are provided. A turntable is provided on the support base. A housing is provided on the turntable. The housing can be moved up and down by a hydraulic jack (see, for example, Patent Document 2).

JP 2003-52759 A JP-A-7-308050

The support member disclosed in Patent Document 1 is temporarily installed on the floor of the machine room before installing the hoisting machine on the machine base. For this reason, when exchanging an existing deflecting car with a new deflecting car while leaving the existing hoisting machine, if the support member of Patent Document 1 is used, the hoisting machine is moved to move the deflecting car device. It is necessary to temporarily remove the machine base, and it takes time to remove the hoist and restore work including centering.

The detaching and assembling apparatus shown in Patent Document 2 is used for maintenance of the electric motor of the hoisting machine, and replacement of the baffle is not described in Patent Document 2. Moreover, when exchanging a deflecting vehicle using the same workbench as patent document 2, it takes time to center a new deflecting vehicle.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a method for exchanging a deflector of an elevator and a deflector exchanging jig that can reduce the labor of exchanging the deflector. And

A method for exchanging a deflector of an elevator according to the present invention includes a deflector axle and a deflector that is rotatable about the deflector axle, and is suspended from a lower part of a hoist installed on the floor of a machine room. A method of exchanging an existing deflector vehicle assembly with a new deflector vehicle assembly, wherein the positioning member is installed on the floor in contact with the deflector axle of the existing deflector vehicle assembly. In addition, the step of installing the guide member on the floor, the step of moving the movable gantry mounted with the vertically movable support base along the guide member under the existing deflector assembly, and the existing support base The process of detaching the existing deflector assembly from the hoisting machine while receiving the deflector assembly, the process of lowering the support base and moving the movable base along the guide member, and the existing deflector assembly A step of replacing the sled wheel assembly, moving the moving frame along the guide member below the hoisting machine, bringing the sled axle of the new sled wheel assembly into contact with the positioning member, and A step of positioning and raising the support base and a step of suspending a new deflector assembly from the lower part of the hoisting machine are included.
Further, an elevator deflecting wheel replacement jig according to the present invention has a deflecting axle and a deflecting wheel that can rotate around the deflecting axle, and the lower part of the hoisting machine installed on the floor of the machine room. An elevator deflector replacement jig used for exchanging an existing deflector assembly suspended from a new deflector assembly, comprising a guide member installed on the floor and a hoisting machine A movable stand that can move along the guide member between a lower space that is a lower space and the outside of the lower space, a vertically movable support that is mounted on the movable stand, and a deflection of an existing sled vehicle assembly A positioning member is provided on the floor in contact with the axle.

The method of exchanging the deflector of the elevator and the jig for exchanging the deflector according to the present invention can perform the exchanging and centering of the deflector while the hoisting machine is installed on the machine base, thereby reducing the labor of exchanging the deflector. Can be reduced.

It is a side view which shows the state in use of the deflecting wheel exchange jig by Embodiment 1 of this invention. It is a front view which shows the state in use of the deflecting wheel exchange jig of FIG. It is a side view which shows the state which lowered the support stand of FIG. It is a front view which shows the state which lowered the support stand of FIG. It is a side view which shows the state in the middle of moving the movable mount frame of FIG. It is a side view which shows the state in use of the deflecting wheel exchange jig by Embodiment 2 of this invention. It is a front view which shows the state in use of the deflecting wheel exchange jig by Embodiment 3 of this invention. It is a top view which shows the principal part of FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1 is a side view showing a state in which the deflecting wheel replacement jig according to Embodiment 1 of the present invention is in use, and FIG. 2 is a front view showing a state in which the deflecting wheel replacement jig of FIG. 1 is in use. In the figure, a pair of

bases

3a and 3b are installed in parallel and horizontally on a floor 2 of a machine room 1 of an elevator. FIG. 2 shows the base 3a by cutting away the intermediate portion.

On the

bases

3a and 3b, a pair of

machine bases

4a and 4b are installed in parallel with each other. The

machine bases

4a and 4b are disposed at right angles to the

horizontal bases

3a and 3b. Each

machine base

4a, 4b is a beam having an I-shaped cross section. FIG. 1 shows the intermediate part of the machine base 4b by cutting away.

A hoisting machine 5 for raising and lowering a car (not shown) and a counterweight (not shown) is installed on the

machine bases

4a and 4b. The hoisting machine 5 has a drive sheave 6. A plurality of vibration isolating members 7 are interposed between the

machine bases

4 a and 4 b and the hoisting machine 5.

A baffle device 8 is fixed to the lower part of the hoisting machine 5. The baffle device 8 includes a pair of

baffle beams

9a and 9b fixed to the lower surface of the hoisting machine 5 with a plurality of bolts, and a baffle vehicle assembly 10 supported by the

baffle beams

9a and 9b. Have. The deflector assembly 10 is suspended from the lower part of the hoisting machine 5 via the

deflector wheels

9a and 9b.

The deflector wheel assembly 10 includes a deflector axle 11, a deflector wheel 12 rotatable around the deflector axle 11, and a bearing (not shown) interposed between the deflector axle 11 and the deflector wheel 12. is doing.

A suspension body (not shown) is wound around the drive sheave 6 and the deflector wheel 12. As the suspension body, a plurality of ropes or a plurality of belts are used. The car and the counterweight are suspended in the hoistway by a suspension, and are moved up and down in the hoistway by rotating the drive sheave 6.

On the floor 2, a deflector changing jig 21 is installed. The deflector replacement jig 21 is installed on the floor 2 when the deflector assembly 10 is replaced, and is removed from the floor 2 during normal operation of the elevator.

Further, the deflector replacement jig 21 includes a pair of

rails

22a and 22b serving as guide members, a movable base 23, a plurality of support bases 24, a plurality of jacks 25, and first and second radial positioning members. 26a, 26b.

The

rails

22a and 22b are installed on the floor 2 below the space between the

machine bases

4a and 4b. The

rails

22a and 22b are installed parallel to the longitudinal direction of the

machine bases

4a and 4b and horizontally. The movable frame 23 is movable along the

rails

22a and 22b between a lower space, which is a space below the hoisting machine 5, and the outside thereof. The moving gantry 23 is provided with a plurality of wheels 23a that roll along the

rails

22a and 22b.

Each support base 24 is mounted on the movable base 23 via a jack 25. Each support base 24 can be moved up and down by a jack 25. That is, the height of the support base 24 can be adjusted by the jack 25.

The first and second

radial positioning members

26 a and 26 b are arranged at an interval in the axial direction of the deflector axle 11. The first and second

radial positioning members

26a and 26b are attached to the floor 2 or the

machine bases

4a and 4b in a state where they are in contact with the outer peripheral surfaces of both axial ends of the deflector axle 11. For example, a centering block or the like is used as the first and second

radial positioning members

26a and 26b.

Next, the method for exchanging the sled vehicle according to the first embodiment will be described. When the deflector assembly 10 is to be replaced, the deflector replacement jig 21 is first installed on the floor 2 as a preparatory work. At this time, the

radial positioning members

26 a and 26 b are deflected and kept in contact with the axle 11. In addition, the movable mount 23 is installed on the

rails

22a and 22b outside the lower space with the support 24 lowered.

After this, the movable gantry 23 is moved under the existing deflector assembly 10 along the

rails

22a and 22b. Subsequently, as shown in FIGS. 1 and 2, the support base 24 is raised to receive the deflector assembly 10 and the

deflector wheels

9a and 9b, and the existing deflector assembly 10 is deflected. Separate all 8 from the hoist 5.

Next, as shown in FIGS. 3 and 4, the support base 24 is lowered and the deflector device 8 is pulled away from the hoisting machine 5. Then, the moving gantry 23 is moved along the

rails

22a and 22b to the exchangeable space outside the lower space. At this time, the moving gantry 23 moves along the machine tables 4a and 4b between the machine tables 4a and 4b. FIG. 5 shows a state in the middle of moving the movable mount 23 along the

rails

22a and 22b.

After this, the deflector device 8 is lowered from the movable mount 23, and the existing deflector assembly 10 is removed from the

deflector beams

9a and 9b. Then, a new deflecting vehicle assembly is attached to the deflecting

wheels

9a and 9b. That is, the existing deflector assembly 10 is replaced with a new deflector assembly. The new deflector assembly is correctly assembled at the factory.

Subsequently, the deflecting vehicle device after the replacement work is placed on the movable frame 23, and the movable frame 23 is moved below the hoisting machine 5 along the

rails

22a and 22b. At this time, the new deflector wheel assembly is brought into contact with the

radial positioning members

26a and 26b to position the new deflector wheel assembly, and the support 24 is raised. Then, the deflecting

wheels

9 a and 9 b are fixed to the hoisting machine 5, and a new deflecting car assembly is suspended from the lower part of the hoisting machine 5.

In such an elevator deflector replacement method and the deflector replacement jig 21, the first and second

radial positioning members

26 a and 26 b are positioned by contacting the deflector axle 11 of the existing deflector assembly 10. In order to position the new deflector wheel assembly by bringing the deflector axle of the new deflector wheel assembly into contact with the first and second

radial positioning members

26a and 26b, a special centering operation is performed. Without doing so, the position of the deflector wheel 12 can be accurately restored to the position before the replacement.

Further, the positioning of the deflecting wheel 12 in the vertical direction can be performed by fixing the deflecting

wheels

9 a and 9 b to the lower surface of the hoisting machine 5. Further, by moving the moving gantry 23 along the

rails

22a and 22b installed with the first and second

radial positioning members

26a and 26b as a reference, the axial direction of the deflecting axle of the new deflecting vehicle assembly is increased. The position can also be easily adjusted.

Therefore, the deflecting wheel 12 can be replaced and centered while the hoisting machine 5 is installed on the

machine bases

4a and 4b, and the labor for replacing the deflecting wheel assembly 10 can be reduced.

Further, since the first and second

radial positioning members

26a and 26b are used, the deflection of the center line of the deflecting axle 11 can be prevented.

Furthermore, by installing a new baffle with high accuracy, the path of the suspension for suspending the car can be restored with high accuracy.

Furthermore, since the

rails

22a and 22b are installed so that the moving base 23 is moved between the

machine bases

4a and 4b along the

machine bases

4a and 4b, the replacement work of the deflector assembly 10 can be efficiently performed with a small amount of movement. Can be done.

Further, since the support base 24 is moved up and down by the jack 25, the deflecting vehicle assembly 10 can be moved up and down with a simple configuration.

Embodiment 2. FIG.
Next, FIG. 6 is a side view showing a state in which the deflector changing jig according to the second embodiment of the present invention is in use. In addition to the configuration of the first embodiment, the deflecting wheel replacement jig of the second embodiment connects the driving device 27 that moves the moving base 23 along the

rails

22a and 22b, and connects the driving device 27 and the moving base 23 together. And a driving force transmitting member 28 for performing the above operation.

As the driving device 27, for example, an electric motor or a chain block is used. As the driving force transmission member 28, for example, a feed screw or a wire is used. The other configuration and the deflector replacement method are the same as those in the first embodiment.

Even with such a configuration, the same effect as in the first embodiment can be obtained. Moreover, the movable mount 23 on which the baffle device 8 is placed can be moved more easily.

Embodiment 3 FIG.
Next, FIG. 7 is a front view showing a state in which the deflector changing jig according to the third embodiment of the present invention is in use, and FIG. 8 is a plan view showing a main part of FIG. In the third embodiment, the support base 24 that receives the deflector axle 11, the first axial positioning member 31 a that contacts the first end surface in the axial direction of the deflector axle 11, and the second axial direction of the deflector axle 11. A second axial positioning member 31b that contacts the end surface is provided.

The

axial positioning members

31 a and 31 b are respectively connected to a bolt support portion 32 fixed on the support base 24, a jack bolt 33 fastened in a screw hole provided in the bolt support portion 32, and the jack bolt 33. And a lock nut 34 combined therewith.

The first and second

axial positioning members

31a and 31b constitute a gripping mechanism for gripping the deflecting axle 11 from both sides in the axial direction. Other configurations are the same as those in the first or second embodiment.

When such a deflecting wheel replacement jig is used, the jack bolts 33 of the

axial positioning members

31a and 31b are swung to the axial end surface of the deflecting axle 11 in a state where the existing deflecting wheel assembly 10 is received by the support base 24. Make contact. In addition, after the existing deflector assembly 10 is replaced with a new deflector assembly, the axial end surface of the deflector axle of the new deflector assembly is brought into contact with the jack bolt 33. Other methods of replacing the deflecting vehicle are the same as those in the first embodiment.

Even with such a configuration, the same effect as in the first embodiment can be obtained. Further, the position of the deflecting axle 11 in the axial direction can be accurately restored.

In the third embodiment, the first and second

axial positioning members

31a and 31b are shown, but either one may be omitted.
In the first to third embodiments, the deflector assembly 10 is replaced from the existing deflector device 8, but only the deflector 12 is replaced by diverting the existing deflector axle 11 or the deflector assembly 10. In addition, the deflecting

wheels

9a and 9b may be exchanged.
Further, the guide member is not limited to the

rails

22a and 22b.
Furthermore, in the first to third embodiments, the support base 24 is moved up and down by the jack 25, but may be moved up and down by a motor or a hydraulic cylinder, for example.
Further, the present invention can be applied to any type of elevator as long as the elevator has a deflector.

Claims

A sled axle and a sled wheel rotatable about the sled axle are provided, and an existing sled wheel assembly suspended from the lower part of a hoist installed on the floor of the machine room is renewed. A method of exchanging the elevator car for the elevator car to be exchanged with the slant car assembly,
Installing the positioning member on the floor in a state where the positioning member is in contact with the deflecting axle of the existing deflecting vehicle assembly, and installing the guide member on the floor;
A step of moving a movable gantry mounted with a vertically movable support base under the existing deflector assembly along the guide member;
Detaching the existing deflector assembly from the hoisting machine while receiving the existing deflector assembly by the support base;
Lowering the support base and moving the movable base along the guide member;
Replacing the existing deflector assembly with a new deflector assembly;
The movable carriage is moved below the hoist along the guide member, and the new deflector wheel assembly is positioned by bringing the deflector axle of the new deflector wheel assembly into contact with the positioning member. A method for exchanging an elevator deflecting vehicle, comprising: raising the support base; and suspending the new deflecting vehicle assembly from a lower part of the hoisting machine.
The positioning member includes first and second radial positioning members,
In the step of installing the positioning member, the first and second radial positioning members are installed on the floor at a distance from each other in the axial direction of the deflecting axle while being in contact with the outer peripheral surface of the deflecting axle. The method of replacing an elevator deflecting vehicle according to claim 1.
The hoisting machine is supported on a pair of machine stands installed on the floor,
The elevator guide car replacement method according to claim 1 or 2, wherein the guide member is installed so as to move the movable frame between the machine tables along the machine table.
In a state where the existing deflector assembly is received by the support base, an axial positioning member provided on the movable base is brought into contact with an axial end surface of the deflector axle,
2. The axial direction end face of the deflecting axle of the new deflecting wheel assembly is brought into contact with the axial positioning member after the existing deflecting wheel assembly is replaced with the new deflecting wheel assembly. 4. The method for exchanging an elevator deflector according to any one of items 3 to 3.
A sled axle and a sled wheel rotatable about the sled axle are provided, and an existing sled wheel assembly suspended from the lower part of a hoist installed on the floor of the machine room is renewed. An elevator deflector replacement jig used to replace the deflector assembly,
A guide member installed on the floor;
A movable gantry movable along the guide member between a lower space which is a space under the hoist and the outside of the lower space;
A lift car replacement of an elevator comprising a support base mounted on the movable base and capable of moving up and down, and a positioning member installed on the floor in contact with the deflector axle of the existing deflector car assembly jig.
6. The elevator deflecting vehicle according to claim 5, wherein the positioning member includes first and second radial positioning members that are spaced apart from each other in the axial direction of the deflecting axle and are in contact with an outer peripheral surface of the deflecting axle. Replacement jig.
The elevator deflector exchange jig according to claim 5 or 6, wherein a jack for moving the support base up and down is provided between the movable base and the support base.
The elevator deflector exchange jig according to any one of claims 5 to 7, further comprising a drive device that moves the movable frame along the guide member.
The elevator curl replacement jig according to any one of claims 5 to 8, wherein the support base is provided with an axial positioning member that contacts an axial end surface of the deflecting axle.