JP6527476B2 - Elevator rope brake inspection method - Google Patents

Description

  The present invention relates to an elevator rope brake inspection method, and more particularly to an elevator rope brake inspection method suitable for applying braking to a rope moving up and down a car.

  There are various types of brakes in elevator braking systems depending on which one is to be braked, and one of them is a rope brake that brakes a rope that raises and lowers a car.

  The rope brake is generally composed mainly of a brake part and a drive part, and the brake part opposes the fixed lining and the movable lining with a rope for driving the elevator car up and down. It is arranged configuration. The drive unit is configured by a solenoid or the like in order to move the movable lining to the fixed lining side.

  When the rope brake is not operating, the movable lining and the fixed lining are kept out of contact with the rope. On the other hand, for example, when the car moves or travels with the car door and the landing door open for some reason, the movable lining is moved to the fixed lining by the drive part, and the fixed lining and the movable lining are used. It is made to carry out restraint holding on both sides of a rope (refer to patent documents 1).

JP 2012-153494 A

  By the way, it is necessary to frequently check the operation of the rope brake in order to confirm that there is no defect such as firmness, movement resistance, wiring or the like.

  However, in the above-described prior art, by performing the operation check of the rope brake, there is a problem that the rope is damaged with a strong force because the rope is clamped with a strong force as in the normal car braking.

  The present invention has been made in view of the above-described point, and an object of the present invention is to provide a rope brake inspection method of an elevator capable of reducing damage to the rope accompanying the operation check of the rope brake.

In order to achieve the above object, according to the rope brake inspection method of an elevator of the present invention, the elevator car is wound around a sheave and a pulley of a hoisting machine, and a car is suspended on one end side and on the other end side. In the rope brake inspection method of an elevator for checking the operation of a rope brake that holds a part of a rope on which a counterweight is suspended by holding a pair of linings in a pair of linings, the car and the counterweight are By moving to a rope position different from the rope position where load is applied to the sheave during normal operation of the rope, the rope position where the load is not applied to the sheave during normal operation of the rope is moved to the position of the rope brake the moved, check the operation of the rope brake in this state, the operation check at the time of the rope brake, Elevator The operation mode for operation confirmation set in advance is set, and according to the operation mode for operation confirmation, the control device sets the car and the counterweight, and a rope position at which a load is applied to the sheave during normal operation of the rope and Are characterized by moving to different rope positions .

  ADVANTAGE OF THE INVENTION According to this invention, the damage to the rope accompanying the operation confirmation of a rope brake can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram of the elevator by which Example 1 of the rope brake inspection method of the elevator of this invention is employ | adopted. It is a front view showing a rope brake which performs Example 1 of a rope brake inspection method of an elevator of the present invention.

  Hereinafter, the rope brake inspection method of the elevator of the present invention will be described based on the illustrated embodiment. In the drawings, the same reference numerals are used for the same components.

  FIG. 1 shows a schematic configuration of an elevator in which a first embodiment of a rope brake inspection method for an elevator according to the present invention is adopted.

  As shown in the figure, the elevator has a rope 2 wound around a sheave 6 and a pulley 7, and a car 3 is suspended on one end side of the rope 2, and on the other end side of the rope 2. The balance weight 4 is suspended.

  Further, in the elevator, a rope brake 1 is provided at a position fixed to the upper portion of the machine beam 5 and capable of holding the rope 2 passed between the sheave 6 and the pulley 7 in a restrained manner.

  Next, the configuration of the rope brake 1 will be described based on FIG. FIG. 2 shows a rope brake which performs Example 1 of the rope brake inspection method of the elevator of this invention.

  As shown in the figure, the rope brake 1 in this embodiment has a function of restraining and holding the rope 2 when the car 3 moves, that is, travels with the car door and the landing door open. That is, for example, it has a brake device in which the movable lining 8 and the fixed lining 9 are disposed so as to face the position for restraining and holding the rope 2.

  Under normal conditions, the arm 10 is restrained by a solenoid (not shown) at the lower part, the movable lining 8 and the fixed lining 9 are separated, and the movable lining 8 and the fixed lining 9 are not in contact with the rope 2 It is kept.

  On the other hand, if it is detected that the car 3 has moved while the car door and the landing door are open for some reason, the solenoid is deenergized, the restraint of the arm 10 is released, and compression is not shown. By moving the arm 10 to the upper part by the extension force of the compression spring interposed in the state, the movable lining 8 is attracted to the fixed lining 9 to restrain and hold the rope 2 so that the movement of the car 3 is blocked. It has become.

  By the way, the rope brake 1 frequently checks the operation of the rope brake 1 (checking whether the brake operation is correct at the time of abnormality) in order to confirm that there is no defect such as firmness, movement resistance, wiring, etc. There is a need.

  In this embodiment, at the time of operation confirmation of the rope brake 1, the elevator is set to a predetermined operation confirmation operation mode, and the control device provided in the elevator according to the operation confirmation operation mode is a car 3 and the counterweight 4 are moved to a predetermined position (a rope position different from the rope position to which a load is applied during normal operation).

  That is, as shown in FIG. 1, the floor level of the car 3 is set to a position lower than the floor level 11 of the lowest floor by a predetermined amount, and the rope position where no load is applied to the sheave 6 during normal operation of the rope 2 Is moved to the position of the rope brake 1. This is because the rope portion where load is applied to the sheave 6 during normal operation is a portion where load is applied according to the driving and braking of the elevator, and it is to prevent damage to the rope 2 of this portion by operation check. .

  The floor level of the car 3 is moved to a position higher by a predetermined amount than the floor level on the top floor, and the rope position where no load is applied to the sheave 6 is moved to the position of the rope brake 1 during normal operation of the rope 2 In this case, the arrangement of the rope brake 1 needs to be different from that shown.

  As described above, in a state where the rope position where load is not applied to the sheave 6 during normal operation of the rope 2 is moved to the position of the rope brake 1, the control device provided in the elevator is for operation confirmation Turn off the solenoid. In response to this, the restraint of the arm 10 is released, and the movable lining 8 is pulled toward the fixed lining 9 by the extension movement of the arm 10 by the extension force of a compression spring (not shown), thereby restraining and holding the rope 2. By this series of operations, it can be confirmed that the rope brake 1 is free from defects such as firmness, operation resistance, wiring and the like.

  According to the present embodiment, the car 3 and the counterweight 4 are moved to a predetermined position (a rope position different from the rope position to which a load is applied during normal operation), and the sheave 6 is loaded during normal operation. Move the no rope position to the position of the rope brake 1 and check the operation of the rope brake 1 in this state to avoid the load applied part according to the driving and braking during the normal operation of the rope 2 and check the operation It is possible to reduce the damage to the rope 2 associated with the inspection and to prolong the life of the rope 2.

  In addition, by moving the car 3 and the counterweight 4 to a predetermined position (a rope position different from the rope position to which a load is applied in a normal operation) in a predetermined operation mode for operation confirmation, button operation, visual confirmation, etc. The rope position where no load is applied to the sheave 6 during normal operation of the rope 2 can be moved to the position of the rope brake 1 without any work.

  Further, the predetermined position of the car 3 at the time of confirming the operation of the rope brake 1 is a sheave during normal operation of the rope 2 by setting the floor level of the car 3 lower than the floor level 11 of the lowest floor by a predetermined amount. It is possible to move the rope position where no load is applied to the position 6 to the position of the rope brake 1.

  The present invention is not limited to the embodiments described above, but includes various modifications. For example, the embodiments described above are described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described. Also, part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. In addition, with respect to a part of the configuration of each embodiment, it is possible to add, delete, and replace other configurations.

  DESCRIPTION OF SYMBOLS 1 ... Rope brake, 2 ... Rope, 3 ... Carb, 4 ... Balance weight, 5 ... Machine beam, 6 ... Sheave, 7 ... Pulley, 8 ... Movable lining, 9 ... Fixed lining, 10 ... Arm, 11 ... Bottom Floor level of the floor.

Claims (3)

It is wound around the sheaves and pulleys of the hoisting machine, and while the car is suspended at one end, the balance weights are arranged at the other end in pairs as part of a rope. In the elevator's rope brake inspection method to check the operation of the rope brake that holds the
A rope that does not load the sheave during normal operation of the rope by moving the car and the counterweight to a rope position different from the rope position where the sheave is loaded during normal operation of the rope Move the position to the position of the rope brake and check the operation of the rope brake in this state ,
At the time of operation check of the rope brake, the elevator is set to a predetermined operation check operation mode, and according to the operation check operation mode, the control device sets the car and the balance weight to normal operation of the rope. The rope brake inspection method of an elevator characterized by moving to a rope position different from the rope position at which the sheave is loaded . The predetermined position of the car at the time of operation confirmation of the rope brake is a position where the floor level of the car is lower than the floor level of the lowest floor by a predetermined amount or higher than the floor level of the top floor by a predetermined amount. The rope brake inspection method of an elevator according to claim 1 . The rope brake has a brake device in which a movable lining and a fixed lining are arranged to face the position for restraining and holding the rope, and during normal operation of the rope, the arm is restrained by the solenoid at the lower part The movable lining and the fixed lining are pulled apart, and the movable lining and the fixed lining are kept in non-contact with the rope, while when an abnormality is detected, the solenoid is deenergized and the arm is When the arm is moved upward by the extension force of the compression spring interposed in a state where the restraint is released and compressed, the movable lining is attracted to the fixed lining to restrain and hold the rope, and the riding It prevents the movement of the car,
In a normal operation of the rope, in a state in which the rope position where the sheave is not loaded is moved to the position of the rope brake, the controller de-energizes the solenoid and the restraint of the arm is accordingly Is released, and the arm is moved upward by the extension force of the compression spring, whereby the movable lining is attracted to the fixed lining, and the rope brake is defective in a series of operations for restraining and holding the rope. The rope brake inspection method for an elevator according to claim 1 or 2, characterized by confirming that there is not.

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