JP5759938B2 - Elevator rope inspection method - Google Patents

Description

  The present invention relates to an elevator rope inspection method.

  The elevator includes a hoistway that extends vertically, and a car and a counterweight that are movably provided in the hoistway. The car and counterweight is suspended by a rope, and a hoisting machine is disposed at a position between the car and the counterweight in the rope. When the rope is driven by the hoisting machine, the car and the counterweight are raised and lowered in opposite directions.

  Conventionally, as a method for inspecting the rope described above, there is one disclosed in Patent Document 1. In this method, a rope tester is arranged in the vicinity of the driving sheave of the hoist, and the cage is moved up and down between the lowermost floor and the uppermost floor to detect damage to the rope.

JP 2009-184769 A

  In the inspection of the rope, the maintenance person often wants to check the state of the rope as widely as possible by visual inspection. In this regard, in the aspect disclosed in Patent Document 1 described above, the inspection by the visual inspection of the maintenance personnel is not particularly facilitated except for the inspection of the position corresponding to the damaged portion detected by the rope tester.

  The present invention has been made in view of the above, and an object of the present invention is to provide an elevator rope inspection method that allows a maintenance person to visually inspect the state of a rope efficiently over a wide range.

  In order to achieve the above-described object, the elevator rope inspection method of the present invention includes an important part storage unit storing an important inspection part on the rope and a maintenance person position at which a predetermined maintenance person is present at that time. A rope position determination unit that determines the position of the rope and a hoisting machine drive control unit that controls a driving state of the hoisting machine that moves the rope, and the hoisting machine drive control unit is the important unit Obtain information on the inspection important part from the storage unit and obtain information on the rope position from the rope position determination unit, and the hoisting machine drive control unit i) the rope with respect to the maintenance person position. When the position is a deceleration part over a predetermined range before and after the inspection important part, the hoisting machine is driven so that the car moves at a speed lower than the reference speed at the time of inspection, and ii) with respect to the maintenance person position When the position of the rope is the inspection important part, the hoisting machine is stopped for a predetermined time or the hoisting machine is driven so that the car is moved at a lower speed than the speed i). To do.

  According to the present invention, the maintenance person can efficiently check the state of the rope over a wide range by visual observation.

It is a figure which shows typically the structure outline | summary of the elevator which applies the rope inspection method of the elevator which concerns on embodiment of this invention. It is a block diagram which shows the structure of the rope inspection apparatus for implementing a rope inspection method. It is a figure explaining the cage | basket | car speed according to the part of the rope in a maintenance person position. It is a flowchart which shows the rope inspection method of the elevator which concerns on this Embodiment.

  Embodiments of an elevator rope inspection method according to the present invention will be described below with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

  FIG. 1 is a diagram schematically showing a configuration outline of an elevator to which the elevator rope inspection method according to the present embodiment is applied. The elevator 1 shown in FIG. 1 is a so-called machine room-less type elevator. A car 5 and a counterweight 7 are provided in the hoistway 3, and a pit at the bottom of the hoistway 3 is wound around a pit. Upper machine 9 is arranged.

  Further, the rope 11 is routed in the hoistway 3 so as to meander up and down. Note that the illustration of FIG. 1 is drawn so that clarity is prioritized and the handling of the rope is easy to see, and there are also portions that are different from the actual. Although the aspect of FIG. 1 is an example, the rope 11 is fixed at one end side 11a, is wound around a plurality of car suspension wheels 13 provided at the bottom of the car 5, and is wound around a plurality of upper return wheels 15. It is wound around the drive sheave 17 of the hoisting machine 9, wound around the upper return wheel 19, wound around the counterweight return wheel 21 provided at the upper part of the counterweight 7, and fixed at the other end 11b. ing.

  When the hoisting machine 9 is driven, the rope 11 is driven by the rotation of the driving sheave 17 and the car 5 is moved up and down between the uppermost floor 23 and the lowermost floor 25 of the structure, and at the same time, the counterweight 7 The car 5 is lifted upside down. Further, at the time of inspection of the rope, the maintenance person 27 climbs onto the car 5 as the maintenance person position, and basically the hoisting machine 9 is driven at a predetermined speed so that the car 5 moves at the reference speed at the time of inspection. Let The maintenance person 27 visually observes and observes the rope 11 passing through the front part C, and confirms that there is no problematic part such as a damaged part.

  Next, a functional configuration for carrying out the elevator rope inspection method according to the present embodiment will be described. FIG. 2 is a block diagram showing a configuration of a rope inspection device for carrying out the rope inspection method. The rope inspection device 31 mainly includes an important part storage unit 33, a rope position determination unit 35, a hoisting machine drive control unit 37, an important part setting unit 39, and a notification unit 41.

  The important part storage unit 33 is a part that stores important inspection parts described later on the rope 11. The rope position determination unit 35 determines the position of the rope 11 at that time with respect to the maintenance person position where a predetermined maintenance person is present, that is, the inspection position on the car 5 in this embodiment. In other words, it is a part for determining what part of the rope 11 is located at the front part C of the maintenance person 27 in the inspection position at that time. In addition, there is no limitation in particular about the specific aspect, It can carry out by the method already existing.

  The hoisting machine drive control unit 37 controls the driving state of the hoisting machine 9 that moves the rope 11 as described later. As an example, the important part storage unit 33, the rope position determination unit 35, and the hoisting machine drive control unit 37 can each be provided as a functional element in an existing control panel of the elevator.

  The important part setting unit 39 changes / adds the position of the important inspection part. Specifically, for example, a maintenance terminal currently used in maintenance can be cited. It may be possible to use the mobile phone terminal carried by the

  The notification unit 41 notifies the maintenance person of information related to the inspection. Specifically, for example, the speaker of the intercom in the car 5 that is already installed in most elevators can be mentioned, It may be possible to use a dedicated speaker or a dedicated display provided on the car 5.

  Next, the inspection important part stored in the important part storage unit 33 will be described. In the present embodiment, the important part storage unit 33 includes at least a recommended inspection important part and an individually set inspection important part as inspection important parts.

  The recommended inspection important portion is a recommended inspection portion of the rope recommended by the manufacturer or the maintenance company regardless of individual differences or conditions of the rope 11. For example, there is one determined based on the handling mode of the rope 11. Specifically, it is a portion where the rope 11 is likely to be damaged in the state where it is occupied for the longest time in the hoistway 3. That is, as shown in FIG. 1, the rope 11 is curved when viewed in a standby state in which the car 5 is landed on the reference stop floor (the lowermost floor 25 in this example) and is wound around the car suspension wheel 13. The region X that is hung, the region Y that is wound around the upper reverse wheel 15, and the region Z that is wound around the drive sheave 17 can be cited as recommended inspection important portions.

  On the other hand, the individual setting inspection important part is an inspection important part arbitrarily set by the maintenance staff 27, for example, an elevator such as a place where there is a problem or a suspicious place or a new place of concern in the previous inspection. This is based on the site-specific requirements of the existing property and ropes. In FIG. 1, the point P which seems to have a problem by the inspection before the last time is shown as an example.

  Note that the recommended inspection important part and the individual setting inspection important part described above may be a very limited point in the rope 11 or may be an area occupied over a certain length in the rope 11. The portion where the rope 11 described above is curved will be considered as a region extending over a certain length.

  Next, the control mode of the hoisting machine drive control unit 37 according to the relationship between the portion of the rope 11 at the maintenance person position and the important inspection portion on the rope 11 will be described. FIG. 3 is a diagram for explaining the car speed according to the portion of the rope located in front of the maintenance person. Moreover, the case of the point P which is an individual setting inspection important part is shown as an inspection important part.

  In the present invention, on the rope, an important inspection part and a deceleration part that is at least a first stage over a predetermined range before and after the important inspection part are considered. As an example, in this embodiment, two stages of deceleration modes are prepared. That is, on the rope 11, an important inspection part, a second deceleration part that is a second stage deceleration part over a predetermined range in the longitudinal direction of movement of the important inspection part, and an outer side in the longitudinal direction of movement of each of the second deceleration parts, A first deceleration portion that is a first-stage deceleration portion over a predetermined range is considered.

  As a specific example, the hoisting machine drive control unit 37 employs the following deceleration levels. The hoisting machine drive control unit 37 controls the hoisting machine 9 so that the car normally moves at a predetermined reference speed during inspection at the time of inspection. And when the position of the rope 11 with respect to a maintenance person position turns into a 1st deceleration part, the hoisting machine 9 is controlled so that the cage | basket | car 5 may move at a speed half of the reference speed at the time of inspection. Further, when the position of the rope 11 with respect to the maintenance person position becomes the second deceleration portion, the hoisting machine 9 is controlled so that the car 5 moves at a speed that is a quarter of the reference speed at the time of inspection. Further, when the position of the rope 11 with respect to the maintenance person position becomes an important inspection part, the hoisting machine 9 is also stopped for a predetermined time so that the car 5 is stopped for a predetermined time. In addition, after the predetermined time has elapsed, the operation of the hoisting machine 9 is resumed, and the rope 11 is at a speed that is a quarter of the reference speed at the time of inspection while the position of the car 5 relative to the maintenance person position is the second deceleration portion. The hoisting machine 9 is controlled to move, and when the position of the rope 11 with respect to the maintenance person position is the first deceleration portion, the car 5 is moved at a speed half the reference speed at the time of inspection. The hoisting machine 9 is controlled. Further, when the position of the rope 11 with respect to the maintenance person position is no longer the first deceleration portion or the second deceleration portion, the hoisting machine 9 is controlled so as to move at a predetermined reference speed during inspection. That is, the hoisting machine drive control unit 37 performs two-stage deceleration as the maintenance person position approaches the inspection important part, and the inspection important part itself stops the movement of the car 5 for a predetermined time, and the maintenance person position is the inspection important part. As the distance from the vehicle increases, the speed increases in two steps toward the reference speed for inspection.

  Next, the operation of the elevator rope inspection method will be described. FIG. 4 is a flowchart showing an elevator rope inspection method. First, in step S1, it is determined whether the elevator is in the inspection mode by a specific operation by the maintenance staff 27 or the like, and in step S2, it is determined whether the elevator is in operation on the car. Be started.

  In Steps S3 and S4, when the position of the rope with respect to the maintenance person position is determined to be the first deceleration part related to either the recommended inspection important part or the individually set inspection important part, the car is designated as Step S5. It is moved at a speed that is half the reference speed at the time of inspection, and an announcement is output from the notification unit 41 or a buzzer is sounded to notify the state.

  In Steps S6 and S7, if the position of the rope with respect to the maintenance person position is determined to be the second deceleration part related to either the recommended inspection important part or the individually set inspection important part, the car is moved as Step S8. Then, the vehicle is moved at a speed that is a quarter of the predetermined reference speed at the time of inspection, and the announcement unit 41 outputs an announcement or sounds a buzzer to notify the state.

  Further, in Steps S9 and S10, when the position of the rope with respect to the maintenance person position is determined to be the inspection important part itself regarding either the recommended inspection important part or the individual setting inspection important part, the car is set as Step S11. Then, it is stopped for a predetermined time, and an announcement is output from the notification unit 41 or a buzzer is sounded to notify the state. In step S5, step S8, and step S11, different types of guides are provided. If an announcement is made, different contents are provided. If a buzzer is used, the volume, pitch, Different types, times, intermittent / continuous types, etc. are provided. In addition, auditory information other than announcements and buzzers may be provided, and in addition to the auditory information, visual information such as lamps and character displays may be provided.

  The elevator rope inspection method according to the present embodiment described above has the following advantages. First, unlike the present embodiment, for example, when the car is running uniformly at the reference speed at the time of inspection of the rope, the maintenance person makes an important inspection by simply looking at the rope. There is a possibility that it is not possible to recognize whether it should be a part. In addition, when a maintenance person issues a command to reduce the traveling speed of a car at a portion to be subjected to a priority inspection, there is a fear that it is not possible to recognize at what timing the command may be issued simply by visually observing the rope. is there. Moreover, in the aspect which stops a cage | basket | car in an inspection position according to the detection result of a rope tester, there is a possibility that an inspection part cannot be specified when there is no damaged part to the extent that the rope tester reacts to the rope itself.

  On the other hand, in the present embodiment, the car is decelerated as the maintenance person position approaches the inspection important part, the car is stopped for a predetermined time in the inspection important part itself, and the car is restored as the maintenance person position moves away from the inspection important part. Because the speed is increased toward the speed of the maintenance, the maintenance person can recognize the important inspection points without making a mistake during the inspection, and helps the maintenance person to efficiently and visually check the condition of the rope over a wide area. be able to. Furthermore, since it does not depend on the presence of the rope tester, the rope can be inspected even if there is no clear damage position, and can be inspected without additional equipment. In addition, such a method is not only for stopping the progress of the rope but also for changing the progress of the rope in a stepwise manner. From the viewpoint of inspection, it is possible to obtain a continuous change in the degree of emphasis (viewing time per unit length) just by carefully inspecting a certain range throughout the inspection work. The inspection can be carried out without having

  In addition, since the position of the individually set inspection important part can be changed / added via the important part setting part, it is possible to change / add the inspection part peculiar to the site such as a part that was suspected at the previous inspection. Also, the recommended inspection important part includes the area where the rope is bent when the car is on the reference floor, and the setting of the reference floor can be changed via the important part setting part, so the same Even if the standard floor of the car is changed due to changes in the user's needs and service provision mode, etc. in the target property, and the area where the rope is bent changes accordingly, the standard floor of the car must be set. By changing, it is possible to change and add important parts of recommended inspection.

  In addition, when the position of the rope relative to the maintenance person position is an important inspection part and a deceleration part, when the auditory information or visual information having different aspects is output from the notification unit, the rope is It is possible to inform the observing maintenance person that the inspection priority has changed with information other than the movement mode of the rope, and can help to recognize the change in the priority. In addition, when the notification unit is a speaker in the car, the intercom in the car can be used to notify that the inspection priority has changed, and maintenance personnel can be used without adding new equipment. Complementary notification to can be performed.

  Although the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teachings of the present invention. It is self-explanatory.

  For example, in the above-described embodiment, two-stage deceleration / acceleration was performed before and after the inspection important part, but the present invention is not limited to this, and only one stage or three or more stages of deceleration / acceleration is performed. The speed may be increased. Further, in the above embodiment, the car is stopped at the important inspection part itself, but the present invention is not limited to this, and the car may be moved at the lowest speed slower than the front and rear deceleration states. Good. In addition, the present invention can be implemented only for one of the recommended inspection important part and the individual setting inspection important part as the inspection important part.

  5 car, 9 hoisting machine, 11 rope, 27 maintenance personnel, 31 rope inspection device, 33 important part storage part, 35 rope position judging part, 37 hoisting machine drive control part, 39 important part setting part, 41 notifying part.

Claims (4)

An important part storage unit that stores important inspection parts on the rope, a rope position determination unit that determines a position of the rope at that time relative to a maintenance person position where a predetermined maintenance person is present, and the rope is moved A hoisting machine drive control unit for controlling the driving state of the hoisting machine is prepared,
The hoisting machine drive control unit obtains information on the inspection important part from the important part storage unit, and obtains information on the position of the rope from the rope position determination unit,
The hoisting machine drive control unit is
i) When the position of the rope with respect to the maintenance person position is a deceleration part over a predetermined range before and after the inspection important part, the hoisting machine is driven to move the car at a speed lower than the reference speed at the time of inspection,
ii) When the position of the rope with respect to the maintenance person position is the inspection important part, the hoisting machine is stopped for a predetermined time or the car is moved at a lower speed than the speed of i). To drive the hoisting machine ,
The inspection important part includes a recommended inspection important part and an individually set inspection important part arbitrarily set by maintenance personnel.
The position of the individual setting inspection important part can be changed / added via the important part setting part,
Elevator rope inspection method. The recommended inspection critical part includes an area where the rope is curved when the car is on the reference floor,
The setting of the reference floor can be changed through the important part setting unit.
The elevator rope inspection method according to claim 1 . An alarm section is also provided to inform maintenance personnel of information related to inspection,
When the position of the rope with respect to the maintenance person position is the inspection important part and the deceleration part, audio information or visual information having different aspects is output as information relating to the inspection.
The elevator rope inspection method according to claim 1 or 2 . The notification unit is a speaker in a car,
The information regarding the inspection is an announcement or a buzzer sound.
The elevator rope inspection method according to claim 3 .

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