JP2011235990A - Auxiliary device for elevator repair work, and repairing method for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an auxiliary device for elevator repairing work, capable of controlling a hoist during replacement of a control board even when there is only one elevator, and to provide a repairing method for the elevator.SOLUTION: The auxiliary device 10 for elevator repairing work, which controls a hoist 2 having a motor 21 and a brake 22, includes: a motor control unit 11 for controlling driving of the motor 21 in the state of being electrically connected to the motor 21; a movable member 12a; a brake control unit 12 for operating the movable member 12a to operate/release the brake 22 by associating the brake 22 with the movable member 12a; and an operation switch 13 for operating the driving control of the motor 21 by the motor control unit 11 and the operation of operation/releasing of the brake 22 by the movable member 12a of the brake control unit 12, for moving a carrier 5 up and down.

Description

  TECHNICAL FIELD The present invention relates to an elevator repair work auxiliary device and an elevator repair method, and more particularly to an elevator repair work auxiliary device and an elevator repair method used in elevator repair work.

  The service life of elevators such as elevators is generally about 20 to 25 years. When used for many years, each device and equipment such as elevator control panels, hoisting machines, and brake mechanisms deteriorate due to aging. Refurbishment work is being carried out to improve the functionality and safety of aging elevators. In the renovation work, all or part of the elevator is remodeled or replaced. Therefore, it is necessary to stop the elevator during the renovation work.

  The renovation work takes a long time from the removal of the existing part of the elevator to the installation of new equipment, and the period of stopping the elevator also takes a long time. As a result, the user cannot use the elevator for a long time. For this reason, shortening of the stop period of the elevator during the renovation period is desired. In particular, when only one elevator is installed, such as a house or office, it is strongly desired to shorten the stop period of the elevator.

  For example, Japanese Patent Laid-Open No. 8-151177 (Patent Document 1) discloses an elevator for performing replacement work while shortening the time for stopping all the operations of a plurality of elevators arranged side by side and improving the convenience of the user. A renewal method has been proposed.

  In this elevator renewal method, a part of one elevator among a plurality of elevators is replaced with a new apparatus, and the new apparatus is temporarily installed in the machine room via a relay cable. After being connected to the panel, the existing control panel of this elevator and other elevators is removed. Thereafter, the newly installed control panel is connected to another elevator. Then, the relay cable is removed from the one elevator, and the new device is connected to the new control panel. Thereafter, a plurality of newly installed control panels are connected. Thereby, elevators other than one elevator which performs a plurality of replacement operations can be operated as before.

JP-A-8-151177

  However, the elevator renewal method of this publication is applied only when a plurality of elevators are arranged in parallel. Therefore, the elevator renewal method of this publication cannot be implemented for the majority of buildings that have only one elevator. Therefore, when only one elevator is installed, the user cannot use the elevator for a long period of time.

  Further, extra work such as temporary installation of a new control panel, connection and removal of a relay cable, etc. occurs, so that extra time will be spent on work related to the control panel, and the construction period cannot be shortened. In addition, when the control panel is replaced, the hoisting machine is not controlled by the control panel, so that the elevator car becomes inoperable. For this reason, it is not possible to carry out in parallel the replacement of the control panel and the operation of constructing the control wiring in the hoistway that requires the car to be moved by the hoist.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an auxiliary device for elevator repair work and an elevator capable of controlling the hoisting machine during replacement of the control panel even when there is only one elevator. Is to provide a repair method.

  The auxiliary device for elevator repair work of the present invention is an auxiliary device for elevator repair work for controlling a hoisting machine having a motor that gives a driving force for raising and lowering the elevator car and a brake that stops the elevator operation, A motor control unit that can be electrically connected to the motor and that can control the drive of the motor while being electrically connected to the motor, and a movable member. The brake is moved to the movable member by operating the movable member. Operates the brake control unit that enables operation and release of the brake in conjunction with the motor drive control by the motor control unit and the brake operation and release operation by the movable member of the brake control unit to raise and lower the car And an operation switch.

  According to the present invention, the elevator repair work auxiliary device operates the motor drive control by the motor control unit and the brake operation / release operation by the movable member of the brake control unit to raise and lower the car. Since the operation switch is provided, the hoisting machine can be controlled even when the control panel is replaced.

It is a schematic block diagram which shows the state with which the auxiliary apparatus for elevator repair work in Embodiment 1 of this invention was attached to the elevator. It is a schematic perspective view which shows P of FIG. It is a schematic perspective view of the auxiliary | assistant apparatus for elevator repair work in Embodiment 1 of this invention. It is a schematic perspective view which shows operation | movement of the auxiliary | assistant apparatus for elevator repair work in Embodiment 1 of this invention, Comprising: It is a schematic perspective view which shows the state before a brake control part releases | releases a brake. It is a schematic perspective view which shows operation | movement of the auxiliary apparatus for elevator repair work in Embodiment 1 of this invention, Comprising: It is a schematic perspective view which shows the state by which the brake was open | released by the brake control part. It is a schematic perspective view which shows operation | movement of the auxiliary | assistance apparatus for elevator repair work in Embodiment 1 of this invention, Comprising: It is a schematic perspective view which shows the state which applied the brake control part. It is a schematic perspective view of the auxiliary apparatus for elevator repair work in Embodiment 2 of this invention. It is a schematic block diagram which shows the state with which the auxiliary apparatus for the elevator repair work in Embodiment 2 of this invention was attached to the elevator.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
First, the configuration of the elevator to which the elevator repair work auxiliary device according to the first embodiment of the present invention is attached will be described.

  With reference to FIG. 1, the elevator 100 mainly includes a control panel 1, a hoisting machine 2, a car 5, a counterweight 6, and a wire rope 7. The elevator 100 is configured so that the car 5 moves up and down in the hoistway in the direction of the arrow D1 in the figure when the control panel 1 controls the hoisting machine 2 during normal operation other than during the renovation work.

  A control panel 1 for controlling the elevator 100 and a hoisting machine 2 for winding up the car 5 are installed in the machine room. The control panel 1 and the hoisting machine 2 are electrically connected, and the control board 1 is configured to be able to control the hoisting machine 2.

  A hoistway 4 is formed below the hoisting machine 2. The car 5 is connected by a counterweight 6 and a wire rope 7 across the hoisting machine 2 so as to be able to move up and down in the hoistway 4. In FIG. 1, a sheave 29 is shown to schematically show a state in which the wire rope 7 is installed.

  The elevator repair work auxiliary device 10 is for controlling the hoisting machine 2 and is detachably attached to the hoisting machine 2.

  Next, the state where the elevator repair work auxiliary device 10 is attached to the hoist 2 will be described. First, the configuration of the hoisting machine 2 and the elevator repair work auxiliary device 10 will be described in detail.

  With reference to FIG. 2, the hoisting machine 2 mainly includes a motor 21, a brake mechanism (brake) 22, and a sheave 29. The motor 21 is configured to give the wire rope 7 a driving force for raising and lowering the car 5.

  The brake 22 is configured to stop the raising / lowering operation of the car 5. The brake 22 includes a brake lever 23, a plunger 24, a brake wheel 25, a brake arm 26, a brake shoe 27, and a brake cover 28. The plunger 24 is configured to be movable from the brake cover 28 toward the brake lever 23. Further, the brake lever 23 is constantly applied in the direction of the brake cover 28 by the action of the brake arm 26.

  The hoisting machine 2 is configured such that when the brake 22 is activated, the plunger 24 does not move, the brake lever 23 does not operate, the brake arm 26 is closed, and the brake shoe 27 presses the brake wheel 25. . In the state where the brake 22 is released, the hoisting machine 2 is configured such that the brake arm 26 is opened and the brake wheel 25 is released from the brake shoe 27 by the plunger 24 pressing and operating the brake lever 23. .

  The sheave 29 can slide the wire rope 7 in a groove formed on the outer periphery. The car 5 is lifted and lowered using the frictional force between the sheave 29 and the wire rope 7.

  Referring to FIG. 3, the elevator repair work auxiliary device 10 mainly includes a motor control unit 11, a brake control unit 12, an operation switch 13, a wiring unit 14, and an engagement member 15. .

  The motor control unit 11 is configured to be electrically connected to the motor 21 of the hoisting machine 2 by the wiring unit 14 and to be able to control the driving of the motor 21 while being electrically connected to the motor 21. The motor control unit 11 can control the lifting / lowering operation of the car 5 by controlling the motor 21 of the hoisting machine 2.

  The brake control unit 12 has a movable member 12a. The movable member 12a is movable toward the brake lever 23 (FIG. 2), and is configured to release the brake 22 by contacting and pressing the brake lever 23 and to apply the brake 22 by moving away from the brake lever 23. Has been. The movable member 12a is configured not to contact the plunger 24 (FIG. 2). The brake control unit 12 is configured to operate and release the brake 22 by operating the movable member 12a to interlock the brake 22 with the movable member 12a.

  The operation switch 13 is for operating the drive control of the motor 21 by the motor control unit 11 and the operation / release operation of the brake 22 by the movable member 12a of the brake control unit 12 in order to raise and lower the car 5. . The operation switch 13 has a switch that can be operated by the user, for example, an Up switch for raising the car 5 and a Down switch for lowering the car 5. The operation switch 13 can raise and lower the car 5 in conjunction with the motor control unit 11 and the brake control unit 12.

  The elevator repair work auxiliary device 10 has an engaging member 15 that can be attached to and detached from the hoisting machine 2. The engaging member 15 has a magnet plate 16 and a belt 17. The magnet plate 16 is mounted on the back surface or the side surface of the elevator repair work auxiliary device 10. The belt 17 is formed so as to surround a part of the auxiliary device 10 for the elevator repair work, and is configured to be able to bind the hoist 2 and the auxiliary device 10 for the elevator repair work. The auxiliary device 10 for the elevator repair work can be attached to the hoisting machine 2 by the magnetic force of the magnet plate 16 and can be fixed to the hoisting machine 2 by the belt 17.

  Further, the engagement member 15 may have an attachment portion 18 for attachment to the hoisting machine 2. The auxiliary device 10 for the elevator repair work may be fixed to the hoist 2 by inserting a screw into the mounting hole 18 a formed in the mounting portion 18.

  With reference to FIG. 2 again, a state in which the elevator repair work auxiliary device 10 is attached to the hoist 2 will be described. The auxiliary device 10 for the elevator repair work is affixed to the brake cover 28 by the magnetic force of the magnet plate 16, and is fixed to the brake cover 28 by the belt 17 being wound around the brake cover 28.

  The motor control unit 11 of the auxiliary device 10 for lifting machine repair work is electrically connected to the motor 21 of the hoisting machine 2 by the wiring unit 14. The movable member 12 a of the brake control unit 12 is arranged at a position where it can contact the brake lever 23 by operating toward the brake lever 23.

  The auxiliary device 10 for elevator repair work is a position where the motor control unit 11 is electrically connected to the motor 21 of the hoisting machine 2 by the wiring unit 14 and the movable member 12a of the brake control unit 12 contacts the brake lever 23. As long as it is disposed at a position other than the brake cover 28.

Next, a method for repairing the elevator 100 according to this embodiment will be described.
The method of repairing the elevator 100 according to the present embodiment is electrically connected to the hoisting machine 2 having the motor 21 that gives the driving force for the raising / lowering operation of the car 5 and the brake 22 that stops the raising / lowering operation. And a method of repairing the elevator 100 having the control panel 1 for controlling the hoisting machine 2.

  The control panel 1 is removed from the hoisting machine 2. Accordingly, the hoisting machine 2 is not controlled by the control panel 1, and the car 5 is not controlled by the control panel 1.

  The auxiliary device 10 for the elevator repair work is attached to the hoist 2. Thus, the hoisting machine 2 can be controlled by the elevator repair work auxiliary device 10 which is a control system independent of the elevator 100. The auxiliary device 10 for the elevator repair work may be attached to the hoisting machine 2 before the control panel 1 is removed from the hoisting machine 2.

  When the UP switch or Down switch of the operation switch 13 is pressed, the motor control unit 11 drives the motor 21 and the brake control unit 12 releases the brake 22.

  4 to 6 show the positional relationship and operation of the auxiliary device 10 for elevator repair work, the brake lever 23, the plunger 24, and the brake cover 28. Referring to FIG. 4, when movable member 12a of brake control unit 12 operates in the direction of arrow D2 in the figure, brake lever 23 is pressed in the direction of arrow D3 in the figure by movable member 12a.

  Referring to FIG. 5, movable member 12 a further moves in the direction of arrow D <b> 2 in the drawing, so that brake lever 23 is moved to a position where brake 22 is released. When the brake lever 23 is moved to a position where the brake 22 is released, the brake lever 23 is not moved any further. When the brake lever 23 is moved by the movable member 12a, the brake lever 23 is in a state similar to the state in which the brake lever 23 is pressed and moved by the plunger 24. By moving the brake lever 23, the brake arm 26 is opened and the brake wheel 25 is released from the brake shoe 27, so that the brake 22 is released. The auxiliary device 10 for the elevator repair work is fixed to the hoisting machine 2 with, for example, a magnet plate 16 and a belt 17 and therefore does not move due to a reaction force from the brake lever 23.

  Accordingly, the brake 22 is released and the motor 21 is controlled, so that the car 5 is moved to an arbitrary location in the hoistway 4.

  When the UP switch or Down switch of the operation switch 13 is released, the motor control unit 11 stops driving the motor 21 and the brake control unit 12 operates the brake 22. Referring to FIG. 6, when movable member 12a of brake control unit 12 operates in the direction of arrow D4 in the figure, brake lever 23 moves in the direction of arrow D5 in the figure. When the brake lever 23 is moved in the direction of arrow D5 in the drawing and stopped by the action of the brake arm 26, the brake arm 26 is closed and the brake shoe 27 presses the brake wheel 25, so that the brake 22 is activated. Thereby, the hoisting machine 2 is braked and the raising / lowering of the car 5 is stopped.

  As described above, after the control panel 1 is removed, the driving of the motor 21 of the hoisting machine 2 and the operation / release of the brake 22 are controlled by the auxiliary device 10 for the elevator repair work.

  In the above description, the motor 21 is a motor (old motor) 21 that has been used before the renovation work. However, the motor 21 is a motor (new motor) 21 attached after the renovation work. Also good. In the case of the new motor, the order of installing the auxiliary device 10 for the elevator repair work is different in the process of the repair work compared to the case of the old motor. In this case, the hoisting machine 2 is replaced immediately after the start of the main body construction process in the machine room 3, and then the elevator repair work auxiliary device 10 is installed.

  Moreover, although the above demonstrated the case where the hoisting machine 2 was replaced | exchanged, only the motor 21 of the hoisting machine 2 may be replaced. In this case, the elevator repair work auxiliary device 10 may be attached to the old motor 21 or may be attached to the new motor 21.

Next, the effect of this Embodiment is demonstrated.
There are various processes for repair work of a general elevator 100, but as time-consuming work, the control panel 1 is replaced, the hoisting machine 2 is replaced, and the control wiring to the new control panel 1 and the new hoisting machine 2 is performed. The main body construction process of the machine room 3 for connecting and the control wiring construction process for wiring the harness and the control cable in the hoistway 4 by moving the car 5 on the car 5 and moving the car 5 There is work.

  An operation switch for raising and lowering the elevator 100 is connected to the hoisting machine 2 via the control panel 1. When the control panel 1 is replaced in the main body construction of the machine room 3, the control panel 1 is removed from the hoisting machine 2. Therefore, the electrical wiring between the control panel 1 and the hoisting machine 2 that is the power unit of the elevator 100 is cut off. Therefore, when the control panel 1 is removed, the hoisting machine 2 cannot be controlled by the operation switch of the elevator 100.

  Therefore, the car 5 is in an unmovable state. Therefore, the control wiring erection process cannot be performed. Therefore, as the repair work process, the control wiring erection process and the machine room main body work need to be performed at individual timings, which is a limitation of shortening the work period.

  On the other hand, according to the elevator repair work auxiliary device 10 of the present embodiment, in order to raise and lower the car 5, the drive control of the motor 21 by the motor control unit 11 and the brake by the movable member 12a of the brake control unit 12 are performed. Since the operation switch 13 for operating the operation / release operation 22 is provided, the hoisting machine 2 can be controlled without using the control panel 1. For this reason, the hoisting machine 2 can be controlled even when the control panel 1 is replaced.

  For this reason, the control wiring erection process can be performed by controlling the hoisting machine 2 in parallel with the replacement of the control panel 1. For this reason, the construction period of the repair work of the elevator 100 can be shortened. Thereby, the stop time of the elevator 100 during the repair work period can be reduced.

  Further, since the elevator repair work auxiliary device 10 includes the operation switch 13, it is not necessary to connect to the control panel 1 and the operation switch of the elevator 100. Therefore, installation and connection to the hoisting machine 2 of the auxiliary device 10 for elevator repair work are easy.

  Further, since the brake control unit 12 that enables the brake 22 to be operated and released by operating the movable member 12a in conjunction with the movable member 12a is provided, the movable member 12a is physically operated by operating the movable member 12a. The brake can be applied. Therefore, the elevator repair work auxiliary device 10 does not need to be electrically connected to the plunger 24 of the hoist 2. Therefore, it is easy to install and connect the auxiliary device 10 for elevator repair work to the hoist 2.

  The auxiliary device 10 for the elevator repair work is attached to the hoist 2 by connecting the motor 21 and the motor control unit 11 with the wiring unit 14 and disposing the brake control unit 12 at a position where the brake 22 can be released. Therefore, it can be attached in a short time.

  In addition, the elevator repair work auxiliary device 10 is not a heavy object because of its simple configuration, and an operator can easily carry in, install and carry out alone.

  According to the auxiliary device 10 for the elevator repair work of the present embodiment, since the engaging member 15 that can be attached to and detached from the hoisting machine 2 is further provided, it can be detachably attached to the hoisting machine 2.

  According to the auxiliary device 10 for the elevator repair work of the present embodiment, it can be attached to the hoisting machine 2 by the magnetic force of the magnet plate 16 and can be fixed to the hoisting machine 2 by the belt 17. It can be attached to the hoisting machine 2.

  According to the elevator repair method of the present embodiment, the process of removing the control panel 1 from the hoisting machine 2 and, after removing the control panel 1, the assisting device 10 for the elevator repair work, And a step of controlling operation and release of the drive and brake 22. Therefore, the hoisting machine 2 can be controlled by the elevator repair work auxiliary device 10 with the control panel 1 removed.

(Embodiment 2)
The second embodiment of the present invention is mainly different from the first embodiment in having a receiver and a transmitter.

  Referring to FIG. 7, the elevator repair work auxiliary device 10 of the present embodiment further includes a wireless switch 13 a having a receiver 51 and a transmitter 52, as compared with the first embodiment. The receiver 51 is configured to be able to control the drive control of the motor 21 by the motor control unit 11 and the operation / release operation of the brake 22 by the movable member 12a of the brake control unit 12. The receiver 51 is electrically connected to the operation switch 13. The receiver 51 may be attached to the inside of the casing of the auxiliary device 10 for elevator repair work.

  The wireless switch 13 a has a transmitter 52. The transmitter 52 is configured to be able to wirelessly communicate with the receiver 51 and to control the motor control unit 11 and the brake control unit 12 through the receiver 51. Radio communication and infrared communication can be applied to the wireless communication. The wireless switch 13 a has a switch that can be operated by the user, for example, an Up switch for raising the car 5 and a Down switch for lowering the car 5.

  In addition, since the structure other than this of this Embodiment is the same as the structure of Embodiment 1 mentioned above, about the same element, the same code | symbol is attached | subjected and the description is not repeated.

  In the elevator repair work auxiliary device 10 of the present embodiment, when the wireless switch 13 a is operated, an instruction is transmitted from the transmitter 52 to the receiver 51, and the motor control unit 11 and the brake control unit 12 are received by the receiver 51. Is controlled. For this reason, the car 5 is moved up and down by operating the wireless switch 13a.

  Referring to FIG. 8, worker 60 can carry radio switch 13 a on board car 5 and operate radio switch 13 a to raise and lower car 5 in the direction of arrow D <b> 6 in the figure. Therefore, the worker 60 can move the car 5 to any place in the hoistway 4 for performing the work of the control wiring erection process.

  According to the elevator repair work auxiliary device 10 of the present embodiment, a receiver capable of controlling the drive control of the motor 21 by the motor control unit 11 and the operation / release operation of the brake 22 by the movable member 12a of the brake control unit 12. 51 and a wireless switch 13a having a transmitter 52 capable of wireless communication with the receiver 51 and capable of controlling the motor control unit 11 and the brake control unit 12 through the receiver 51.

  For this reason, since the worker on the car 5 can be independently operated by the wireless switch 13a during the control wiring erection process, cooperation such as mutual communication between the worker on the car 5 and the worker in the machine room 3 is not possible. This eliminates the need for the control wiring erection process. Therefore, productivity in the repair work of the elevator 100 can be improved.

The above embodiments can be combined in a timely manner.
The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Control panel, 2 hoisting machine, 3 machine room, 4 hoistway, 5 cage, 6 counterweight, 7 wire rope, 10 auxiliary equipment for elevator repair work, 11 motor control part, 12 brake control part, 12a movable member, 13 Operation switch, 13a Wireless switch, 14 Wiring part, 15 Engagement member, 16 Magnet plate, 17 Belt, 18 Mounting part, 21 Motor, 22 Brake, 23 Brake lever, 24 Plunger, 25 Brake wheel, 26 Brake arm, 27 Brake shoe, 28 Brake cover, 29 Sheave, 51 Receiver, 52 Transmitter, 60 Worker, 100 Elevator.

Claims (5)

An auxiliary device for elevator repair work for controlling a hoisting machine having a motor for providing a driving force for raising and lowering the elevator car and a brake for stopping the elevator operation,
A motor control unit that can be electrically connected to the motor and that can control driving of the motor in a state of being electrically connected to the motor;
A brake control unit having a movable member, and operating the movable member to link the brake to the movable member to enable operation and release of the brake;
An elevator having an operation switch for operating the drive control of the motor by the motor control unit and the operation / release operation of the brake by the movable member of the brake control unit to raise and lower the car Auxiliary equipment for repair work. A receiver capable of controlling drive control of the motor by the motor control unit and operation / release operation of the brake by the movable member of the brake control unit;
2. The elevator repair work according to claim 1, further comprising a wireless switch having a transmitter capable of wireless communication with the receiver and capable of controlling the motor control unit and the brake control unit through the receiver. Auxiliary device.   The auxiliary device for elevator repair work according to claim 1, further comprising an engagement member detachable from the hoisting machine. The engagement member includes a magnet plate and a belt,
The auxiliary device for elevator repair work according to claim 3, which can be attached to the hoisting machine by the magnetic force of the magnet plate and can be fixed to the hoisting machine by the belt. A hoisting machine having a motor for providing a driving force for raising and lowering a car, a hoisting machine having a brake for stopping the hoisting action, and a control panel electrically connected to the hoisting machine and controlling the hoisting machine Renovation method,
Removing the control panel from the hoisting machine;
After removing the control panel, the step of controlling the driving of the motor of the hoisting machine and the operation / release of the brake by the auxiliary device for the elevator repair work according to any one of claims 1 to 4 is provided. How to refurbish the elevator.

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