JP2013049526A - Elevator rope exchanging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator rope exchanging apparatus which can implement operation easily and accurately even if a plurality of ropes are fed or rewound at the same time.SOLUTION: A main rope exchanging apparatus has a rack 1, a spindle 2 and a plurality of casters 3 provided at the rack 1, a rope cradle device 4 placed on each roller of the casters 3, a cradle driving device 5, and a rope driving device 6. The rope cradle device 4 is guided by each roller of the casters 3 so as to rotate around the spindle 2. The cradle driving device 5 drives the rope cradle device 4. Furthermore, the rope driving device 6 drives an old rope to be rewound to the rope cradle device 4 or a new rope to be fed from the rope cradle device 4.

Description

  The present invention relates to a rope exchanging device used when exchanging an elevator rope, for example, when exchanging a main rope.

In the elevator, various ropes such as a main rope and a governor rope are used.
In Patent Documents 1 and 2 below, an instrument for sending out a new rope (new rope) while collecting a rope (old rope) used so far is proposed.

  The instrument described in Patent Document 1 is used in a state where it is stood on the pit bottom surface of the hoistway when the governor rope is replaced. In the thing of patent document 1, the axis | shaft arrange | positioned horizontally is rotated and the delivery work of a new rope and the winding-up work of an old rope are performed.

  The instrument described in Patent Document 2 is used in a state where it is laid down horizontally on an elevator hall or the like on the lowest floor during the main rope replacement work. In the thing of patent document 2, the axis | shaft arrange | positioned perpendicularly | vertically is rotated and the delivery work of a new rope and the winding-up work of an old rope are performed.

JP-A-6-239563 Japanese Patent Laid-Open No. 2005-138917

  In the thing of patent document 1, there existed a problem that lack of stability, such as an instrument falling down or inclining during the replacement | exchange work of a rope from the structure of the instrument. Equipment for operating the elevator may be installed in the pit of the hoistway, and there is a fear that the equipment may be damaged if the equipment falls down.

  Since the thing of patent document 2 is used in the state which arrange | positioned the axis | shaft perpendicularly | vertically, there is no possibility of falling or tilting during the replacement | exchange work of a rope like the thing described in patent document 1. FIG. Also, multiple new ropes can be sent out simultaneously. However, in particular, when a plurality of ropes are sent out or taken up at the same time, there is a problem that a large force is required to rotate the rope cradle, which makes the operation difficult.

  The present invention has been made to solve the above-described problems, and its purpose is to carry out the work easily and accurately even when a plurality of ropes are sent or taken up simultaneously. It is to provide an elevator rope exchange device that can be used.

  The elevator rope exchanging device according to the present invention is provided on the gantry, the gantry, the main shaft protruding upward from the upper surface of the gantry, the gantry being rotatably provided via a horizontal axis, and the upper end portion of the gantry. A plurality of rollers arranged to move in a tangential direction of a circle centering on the main axis above the upper surface, and a first rope receiver that is placed on each roller and guided around each roller and rotates about the main axis A base device, a cradle drive device that drives the first rope cradle device, a rope drive device that drives an old rope wound around the first rope cradle device, or a new rope fed from the first rope cradle device; , With.

  With the elevator rope exchanging device according to the present invention, even when a plurality of ropes are simultaneously sent out or wound up, the work can be carried out easily and accurately.

It is a front view which shows the rope replacement | exchange apparatus for elevators in Embodiment 1 of this invention. It is a figure which shows the state which removed the cradle drive device and the rope drive device from the rope exchange apparatus shown in FIG. It is a top view which shows a rope cradle apparatus. It is a front view which shows the principal part of a rope cradle apparatus. It is a top view which shows the principal part of a rope cradle apparatus. It is a figure which shows a cradle drive device. It is a figure which shows a rope drive device. It is a figure which shows the structure of a cradle drive device and a rope drive device. It is a figure which shows the state at the time of use of the rope replacement | exchange apparatus for elevators in Embodiment 1 of this invention.

  The present invention will be described in detail with reference to the accompanying drawings. In each drawing, the same or corresponding parts are denoted by the same reference numerals. The overlapping description is simplified or omitted as appropriate.

Embodiment 1 FIG.
1 is a front view showing an elevator rope exchanging apparatus according to Embodiment 1 of the present invention.
In the elevator, various ropes such as a main rope and a governor rope are used. This rope exchanging device is used by an operator when exchanging ropes in an elevator repair work or the like, for example, when winding up an old rope or feeding out a new rope. This rope exchanging device is used on the pit bottom of the elevator hoistway or on the floor of the elevator hall.

  Specifically, the main part of the rope exchanging device is composed of the gantry 1, the main shaft 2, the casters 3, the rope cradle device 4, the cradle drive device 5, and the rope drive device 6. Hereinafter, the configuration of the rope exchanging device will be described in detail with reference to FIGS.

  FIG. 2 is a view showing a state where the cradle driving device and the rope driving device are removed from the rope exchanging device shown in FIG. FIG. 3 is a plan view showing the rope cradle device. 4 is a front view showing a main part of the rope cradle device, and FIG. 5 is a plan view thereof. FIG. 6 is a view showing a cradle driving device. FIG. 7 is a view showing a rope driving device. FIG. 8 is a diagram showing the configuration of the cradle driving device and the rope driving device.

The gantry 1 is composed of, for example, a plate-like member having a circular shape. The gantry 1 supports the weight of the main part (or the whole) of the apparatus.
The main shaft 2 supports the rope cradle device 4 and guides its rotational direction. The main shaft 2 is made of a cylindrical member having a predetermined length, for example. The main shaft 2 is arranged such that the lower end portion is fixed (or detachably fixed) to the upper surface of the central portion of the gantry 1 and protrudes upward (perpendicular) from the upper surface of the gantry 1.

  A caster 3 is fixed upward on the upper surface of the gantry 1. A plurality of casters 3 (four in the present embodiment) are arranged at equal intervals around the main shaft 2. Each roller of the caster 3 is rotatably provided on the gantry 1 via a horizontal shaft. Since the casters 3 are fixed upward on the upper surface of the gantry 1, the upper ends of the rollers of the casters 3 are arranged above the upper surface of the gantry 1. Further, each roller of the caster 3 is arranged such that the upper end portion moves in a tangential direction of a circle centering on the main shaft 2.

  The rope cradle device 4 is for supporting the old rope and the new rope. One rope cradle device 4 is prepared for each rope. A plurality of rope cradle devices 4 are stacked on top of the gantry 1 according to the number of ropes to be replaced. In the present embodiment, a case is shown in which three rope cradle devices 4 are provided in a rope exchanging device in order to send out or wind up three ropes simultaneously. In the following, when the rope cradle device 4 needs to be individually specified, the rope cradle device 4 is distinguished from the one arranged below by being denoted by reference numerals 4a, 4b, and 4c.

The rope cradle device 4 includes, for example, a rope support plate 7, a pedestal 8, and a spacer 9.
The rope support plate 7 is for supporting the rope. The rope support plate 7 is composed of a plate-like member having a circular shape, for example. A plurality of long holes 7 a are formed radially on the upper surface of the rope support plate 7. The long hole 7a is a hole through which a bind wire for binding the rope wound on the rope support plate 7 is passed. In the present embodiment, the case where the long holes 7a are formed in the rope support plate 7 every 90 degrees is shown.

  The pedestal 8 is for forming a predetermined gap between the rope support plates 7 arranged above and below when a plurality of rope cradle devices 4 are stacked. The pedestal 8 is made of a member whose longitudinal section has a trapezoidal shape, for example. The pedestal 8 is provided integrally with the rope support plate 7 on the upper surface of the central portion of the rope support plate 7. When exchanging the rope, the old rope and the new rope are arranged around the base 8 on the upper surface of the rope support plate 7 and supported by the rope support plate 7. A through hole 10 having a diameter slightly larger than the diameter of the main shaft 2 is formed in each central portion of the rope support plate 7 and the pedestal 8 so as to penetrate both the rope support plate 7 and the pedestal 8. .

  The pedestal 8 is hollow inside, and an opening 8a leading to the internal space is formed on the outer peripheral surface. The opening 8a forms a space for arranging the shackle 11 connected to the end of the old rope on the winding start side when winding the old rope. A hook 8 b for fixing the shackle 11 is provided inside the base 8. When winding the old rope, the operator inserts the shackle 11 connected to the end of the old rope into the internal space of the base 8 from the opening 8a, hooks the shackle 11 on the hooking rod 8b, and ends the end of the old rope. Is fixed to the rope cradle device 4 (see FIGS. 4 and 5).

  The spacer 9 is provided so that the operations of the rope support plates 7 arranged above and below do not interfere with each other. That is, the spacer 9 is disposed between the pedestal 8 (rope support plate 7) and the rope support plate 7 of the rope cradle device 4 disposed above, so that the upper and lower rope support plates 7 are independent from each other. And can rotate smoothly. The spacer 9 is provided on the base 8. A through hole (not shown) having a diameter larger than the diameter of the main shaft 2 is formed in the central portion of the spacer 9.

As described above, a plurality of rope cradle devices 4 are stacked on top of the gantry 1 in accordance with the number of ropes to be replaced.
In the rope cradle device 4 a arranged at the bottom, the rope support plate 7 is placed on the roller of each caster 3. Further, the rope cradle device 4a is arranged so that the main shaft 2 penetrates the through hole 10 formed in the center. When the rope cradle device 4a is appropriately placed on each roller, the rope cradle device 4a is guided by the roller of each caster 3 and is rotatable in both directions around the main shaft 2. The main shaft 2 is arranged so as to also penetrate through a through hole formed in the central portion of the spacer 9.

  The rope cradle device 4b arranged on one of the rope cradle devices 4a is placed on the spacer 9 provided in the rope cradle device 4a. Moreover, the rope cradle device 4b is disposed so that the main shaft 2 penetrates the through hole 10 formed in the center. When the rope cradle device 4b is appropriately placed on the spacer 9 provided in the rope cradle device 4a, the rope cradle device 4b is not affected by the rotation of the rope cradle device 4a. 2 is rotatable in both directions.

  The rope cradle device 4c disposed on one of the rope cradle devices 4b is placed on the spacer 9 provided in the rope cradle device 4b. The rope cradle device 4c is arranged so that the main shaft 2 passes through the through hole 10 formed in the center. By appropriately placing the rope cradle device 4c on the spacer 9 provided in the rope cradle device 4b, the rope cradle device 4c is not affected by the rotation of the rope cradle device 4b, and the spindle 2 is rotatable in both directions. The rope cradle device 4c disposed at the top of the rope cradle device 4 does not need to include the spacer 9.

  When exchanging four or more ropes at the same time using this apparatus, the rope cradle apparatus 4 having the above-described configuration may be further stacked to constitute the apparatus.

  The cradle drive device 5 is for driving the rope cradle device 4. The rope cradle device 4 is driven by the cradle drive device 5 to rotate about the main shaft 2 at an arbitrary speed and in an arbitrary direction. When a plurality of rope cradle devices 4 are provided, the cradle drive device 5 is configured to be able to drive each rope support plate 7 of the rope cradle device 4 independently (individually). .

  The cradle drive device 5 includes, for example, a torque motor 12 and a support base 13. The torque motor 12 generates a driving force for rotating the rope support plate 7 of the rope cradle device 4. In the present embodiment, since three rope cradle devices 4 are provided, three torque motors 12 are provided according to the number of rope cradle devices 4 installed. In the following description, when it is necessary to individually specify the torque motor 12, the reference numerals 12a, 12b, and 12c are used to distinguish them from those arranged below.

  The torque motor 12 is provided with a drive roller 14 on each output shaft. The outer peripheral surface of the drive roller 14 is pressed against the outer peripheral surface of the corresponding rope support plate 7. For this reason, when the driving roller 14 rotates in conjunction with the output shaft of the torque motor 12, the corresponding rope support plate 7 rotates in the opposite direction to the driving roller 14 due to the frictional force with the driving roller 14.

  The torque motor 12 is controlled by supplying power by, for example, opening and closing switches 16a to 16c in the control panel 15. For example, when the switch 16a is closed, the torque motor 12a is driven, and the rope support plate 7 of the rope cradle device 4a rotates. Similarly, when the switch 16b is closed, the torque motor 12b is driven and the rope support plate 7 of the rope cradle device 4b rotates. When the switch 16c is closed, the torque motor 12c is driven and the rope support plate 7 of the rope cradle device 4c rotates.

  The support base 13 is for supporting the torque motor 12. Each torque motor 12 is fixed to the support base 13 at an appropriate position (height) so that the rotational force of the drive roller 14 is transmitted to the corresponding rope support plate 7. The support base 13 is fixed to the gantry 1 via a bolt (not shown) or the like.

  As a mechanism for transmitting the driving force of the torque motor 12 to the rope support plate 7, a pinion method or the like may be adopted instead of the roller method.

  The rope driving device 6 is for driving an old rope wound around the rope cradle device 4 or a new rope sent out from the rope cradle device 4 when the rope is replaced. When driving a plurality of ropes (provided with a plurality of rope cradle devices 4), the rope drive device 6 is wound on the ropes supported on the rope support plates 7 (on the rope support plates 7). The old rope or the new rope fed from each rope support plate 7) can be driven independently (individually).

The rope drive device 6 includes, for example, a torque motor 17 and a support base 18.
The torque motor 17 generates a driving force for driving the rope, that is, for drawing the old rope and feeding the new rope. Each torque motor 17 is provided with a driving roller 19 interlocking with the output shaft. The rope drive device 6 sandwiches the rope from above and below (or both sides) by a pair of drive rollers 19 and rotates the drive roller 19 in this state to move the rope. In the present embodiment, since three rope cradle devices 4 are provided, three sets (6 in total) of torque motors 17 are provided in accordance with the number of rope cradle devices 4 installed. In the following, when it is necessary to individually specify the torque motor 17, the torque motor 17 is distinguished from the one corresponding to the drive roller 19 disposed below by being denoted by reference numerals 17 a, 17 b, 17 c, 17 d, 17 e, and 17 f.

The torque motor 17 is controlled by supplying power by opening and closing the switches 20a to 20c in the control panel 15, for example.
For example, when the switch 20a is closed, the pair of torque motors 17a and 17b are driven, and the old rope wound around the rope cradle device 4a (or a new rope sent out from the rope cradle device 4a) moves. Similarly, when the switch 20b is closed, the pair of torque motors 17c and 17d are driven, and the old rope wound around the rope cradle device 4b (or a new rope fed from the rope cradle device 4b) moves. When the switch 20c is closed, the pair of torque motors 17e and 17f are driven, and the old rope wound around the rope cradle device 4c (or a new rope fed out from the rope cradle device 4c) moves.

  The support base 18 is for supporting the torque motor 17 and the drive roller 19. A torque motor 17 is built in the support base 18. A driving roller 19 is rotatably provided on the support base 18 in accordance with the position (height) of each rope cradle device 4.

  Next, a method for using the rope exchanging apparatus having the above configuration will be described with reference to FIG. FIG. 9 is a diagram showing a state in use of the elevator rope exchanging apparatus according to the first embodiment of the present invention.

  When replacing the main rope of the elevator, for example, when sending out a new rope using this rope exchanging device, first, the gantry 1 is installed, and the new rope is wound on the gantry 1 (the caster 3). The rope cradle device 4 is stacked by the number of new ropes.

  When the rope cradle device 4 is installed above the gantry 1, the end of the new rope is pulled out from the rope cradle device 4a arranged at the bottom, and between the drive rollers 19 driven by the torque motors 17a and 17b ( The end of the new rope is passed through the lowermost and the drive rollers 19 arranged second from the bottom. Similarly, the end of the new rope is pulled out from the rope receiving device 4b arranged in the middle, and between the driving rollers 19 driven by the torque motors 17c and 17d (the driving rollers arranged third and fourth from the bottom) 19), pass the end of the new rope. Further, an end portion of the new rope is pulled out from the rope cradle device 4c arranged at the top, and between the driving rollers 19 driven by the torque motors 17e and 17f (disposed second from the top and above). Pass the end of the new rope between the drive rollers 19).

  When the new rope is sent out, power is supplied from the control panel 15 to the torque motor 12, and the rope motor 7 is driven by the torque motor 12. Thereby, the rope support plate 7 of each rope cradle device 4 rotates in a predetermined direction around the main shaft 2. Further, power is supplied from the control panel 15 to the torque motor 17, and each new rope is driven by the torque motor 17. Thereby, each new rope is sequentially drawn out from between the drive rollers 19.

  With the rope exchanging device having the above-described configuration, the rotation of the rope support plate 7 and the drawing of the old rope or the feeding of the new rope can be performed using the torque motors 12 and 17. For this reason, even if it is a case where a several rope is sent out simultaneously or winds up, a worker's burden can be reduced significantly. Further, torque control of the torque motors 12 and 17 is easy, and the work can be performed accurately.

  In the case of the rope exchanging device having the above configuration, the rotation of each rope support plate 7 and the pulling or sending out of each rope can be individually controlled. Can be easily corrected. If the device is provided with a detector for detecting the load acting on each rope, the torque motors 12 and 17 are individually controlled by the control panel 15 in accordance with the detection result of the detector. It is also possible. By adopting such a configuration, it is possible to perform the rope winding operation and the feeding operation more smoothly.

  With this apparatus, unlike the conventional apparatus, the apparatus does not become unstable during the rope winding or feeding operation. With this apparatus, it is possible to prevent the floor (floor surface of the hoistway pit, floor surface of the landing hall, etc.) from becoming dirty when the rope is wound or sent out.

  Further, if the spindle 2, the rope cradle device 4, the cradle drive device 5, and the rope drive device 6 are configured to be detachable from the gantry 1, the device can be easily transported and the storage space can be reduced. It is also possible to make it.

DESCRIPTION OF SYMBOLS 1 Stand 2 Main shaft 3 Caster 4, 4a-4c Rope cradle device 5 Receptacle drive device 6 Rope drive device 7 Rope support plate 7a Long hole 8 Base 8a Opening 8b Hook rod 9 Spacer 10 Through-hole 11 Shackle 12, 12a-12c , 17, 17a-17f Torque motor 13, 18 Support base 14, 19 Drive roller 15 Control panel 16a-16c, 20a-20c Switch

Claims (7)

A frame,
A main shaft provided on the gantry and projecting upward from an upper surface of the gantry;
A plurality of rollers provided on the gantry so as to be rotatable via a horizontal axis, and having an upper end portion disposed above the upper surface of the gantry so as to move in a tangential direction of a circle around the main axis; ,
A first rope pedestal device mounted on each roller and guided around each roller to rotate around the main shaft;
A cradle drive device for driving the first rope cradle device;
An old rope wound around the first rope cradle device, or a rope drive device that drives a new rope fed from the first rope cradle device;
An elevator rope changer characterized by comprising: A second rope cradle device mounted on the first rope cradle device and rotating about the main shaft;
With
The first rope cradle device includes a first rope support plate for supporting the rope,
The second rope cradle device includes a second rope support plate for supporting the rope,
A spacer is disposed between the first rope support plate and the second rope support plate to prevent the operation of the first rope support plate and the operation of the second rope support plate from interfering with each other. The elevator rope exchanging apparatus according to claim 1. The cradle driving device includes:
A first torque motor for driving the first rope support plate;
A second torque motor for driving the second rope support plate;
The elevator rope exchanging apparatus according to claim 2, wherein the first rope support plate and the second rope support plate are individually driven. The cradle driving device includes:
A first drive roller provided on an output shaft of the first torque motor and having an outer peripheral surface pressed against an outer peripheral surface of the first rope support plate;
A second drive roller provided on the output shaft of the second torque motor, the outer peripheral surface of which is pressed against the outer peripheral surface of the second rope support plate;
A first support for supporting the first torque motor and the second torque motor;
The elevator rope exchanging apparatus according to claim 3, wherein the elevator rope exchanging apparatus is provided.   5. The rope drive device according to claim 2, wherein the rope drive device individually drives a rope supported by the first rope support plate and a rope supported by the second rope support plate. The elevator rope changer described in 1. The rope drive device
A pair of third torque motors for driving a rope supported by the first rope support plate;
A pair of third drive rollers that interlink with each output shaft of the third torque motor and sandwich the rope supported by the first rope support plate;
A pair of fourth torque motors for driving a rope supported by the second rope support plate;
A pair of fourth drive rollers that interlink with each output shaft of the fourth torque motor and sandwich the rope supported by the second rope support plate;
A second support for supporting the third drive roller and the fourth drive roller;
The elevator rope exchanging device according to claim 5, wherein the elevator rope exchanging device is provided. A detector for detecting the load acting on each rope;
Based on the detection result of the detector, a control panel for controlling the cradle drive device and the rope drive device;
An elevator rope exchanging device according to any one of claims 2 to 6, wherein the elevator rope exchanging device is provided.

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