JP5930813B2 - Elevator apparatus and repair method thereof - Google Patents

Description

  The present invention relates to an elevator device in which a suspension device is attached to the lifting body, and an elevator device in which a suspension device is attached to the lifting body. The present invention relates to a method for repairing an elevator device that is repaired to a device.

  In the conventional elevator apparatus refurbishment method, after the first end of the main rope is removed from the upper beam of the car, the beam material is mounted horizontally under the upper beam, and the car suspension car is attached to both ends of the beam material. It is attached. Moreover, after the terminal of the main rope is removed from the counterweight, a counterweight suspension vehicle is attached to the upper portion of the counterweight via a bracket. As a result, the 1: 1 roping elevator device is modified to a 2: 1 roping elevator device (see, for example, Patent Document 1).

JP 2008-30885 A

  In the conventional elevator device renovation method as described above, the beam material is attached under the upper beam of the car, or the bracket is attached to the upper part of the counterweight. There is a lot of work.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator apparatus and a method for repairing the elevator apparatus that can facilitate attachment work of a suspension vehicle apparatus on site.

  The elevator device repair method according to the present invention is an elevator device before repair of a type in which a main rope terminal is connected to a leash stop portion of an elevator body, and an elevator device in which a suspension device is attached to the elevator body. A method of repairing to a later elevator device, the step of removing the terminal from the rope stop portion of the elevator device before the repair, and a plurality of terminal fastening holes provided in the rope stop portion, A step of fastening the vehicle device.

  In the elevator device refurbishment method according to the present invention, the suspension vehicle device is fastened to the rope anchoring portion using the terminal fastening hole provided in the existing rope anchoring beam. can do.

It is a front view which shows the state before repair of the elevator apparatus by Embodiment 1 of this invention. It is a side view which shows the elevator apparatus of FIG. It is a front view which shows the state after repair of the elevator apparatus of FIG. It is a side view which shows the elevator apparatus of FIG. FIG. 5 is an exploded perspective view showing the upper beam and the car suspension device of FIG. 4. It is a disassembled perspective view which shows the upper beam and the car suspension apparatus by Embodiment 2 of this invention. It is a disassembled perspective view which shows the upper beam of a car and the car suspension apparatus by Embodiment 3 of this invention. It is a disassembled perspective view which shows the upper beam of a car and the car suspension apparatus by Embodiment 4 of this invention.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1 is a front view showing a state before repair of an elevator apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a side view showing the elevator apparatus of FIG. In the figure, a machine room 2 is provided in the upper part of the hoistway 1. The car 3 as a lifting body is moved up and down in the hoistway 1 along a pair of car guide rails (not shown) installed in the hoistway 1.

  The car 3 has a car frame 4 and a car room 5 supported by the car frame 4. The car frame 4 has a pair of vertical frames 6 arranged vertically on both sides of the car room 5 and a horizontal upper beam 7 fixed between upper ends of the vertical frames 6. A car doorway 5 a is provided on the front surface of the car room 5.

  The counterweight 4 that is a lift is moved up and down in the hoistway 1 along a pair of counterweight guide rails (not shown) installed in the hoistway 1. In this example, the counterweight 8 is disposed behind the car 3 as viewed from the landing side (rear fall-off type).

  The counterweight 8 includes a counterweight frame 9 and a counterweight main body 10 supported by the counterweight frame 9. The counterweight frame 9 includes a pair of left and right vertical frames 9a and 9b, a horizontal upper frame (upper beam) 9c fixed between the upper ends of the vertical frames 9a and 9b, and the lower ends of the vertical frames 9a and 9b. And a horizontal lower frame 9d fixed to the frame.

  In the machine room 2, a hoisting machine 11 that raises and lowers the car 3 and the counterweight 8 is installed. The hoisting machine 11 has a hoisting machine main body 12 and a drive sheave 13. The hoisting machine body 12 is provided with a hoisting machine motor that rotates the drive sheave 13 and a hoisting machine brake that brakes the rotation of the driving sheave 13.

  In the vicinity of the hoisting machine 11 in the machine room 2, a deflecting wheel 14 is installed. A plurality of main ropes 15 are wound around the drive sheave 13 and the deflecting wheel 14. A car 3 and a counterweight 8 are connected to both ends of the main rope 15. That is, the car 3 and the counterweight 8 are suspended in the hoistway 1 by a 1: 1 roping method.

  A car-side terminal 16 connected to the upper beam 7 is provided at the end of each main rope 15 on the car 3 side. A counterweight side terminal 17 connected to the upper frame 9c is provided at the end of each main rope 15 on the counterweight 8 side. Each terminal 16, 17 is provided with a rope shackle.

  At the center of the upper beam 7 of the car 3, a car side rope stop 18 to which the car side terminal 16 is connected is provided. At the center of the upper frame 9c of the counterweight 8, there is provided a counterweight-side leash-fastening portion 19 to which a counterweight-side terminal 17 is connected.

  3 is a front view showing a state after the elevator apparatus of FIG. 1 is repaired, and FIG. 4 is a side view showing the elevator apparatus of FIG. In the elevator apparatus after the repair, the car suspension device 21 is attached to the car side rope stopper 18. Further, a counterweight suspension vehicle device 22 is attached to the counterweight-side leash stopper 19.

  The car side terminal 16 and the counterweight side terminal 17 are connected to the upper part of the hoistway 1. The main rope 15 reaches the counterweight side terminal 17 via the car suspension terminal device 21, the drive sheave 13, the deflector wheel 14, and the counterweight suspension vehicle apparatus 22 in order from the car side terminal 16 side. Thereby, the car 3 and the counterweight 8 are suspended in the hoistway 1 by a 2: 1 roping method.

  FIG. 5 is an exploded perspective view showing the upper beam 7 and the car suspension device 21 of the car 3 of FIG. The upper beam 7 includes a horizontal upper surface portion 7a on which the car-side rope stopper 18 is provided, and a pair of side surface portions 7b and 7c that protrude downward from both ends in the width direction of the upper surface portion 7a and face each other. . That is, the cross-sectional shape of the upper beam 7 is a groove shape (hat shape) opened downward.

  The car suspension device 21 includes an attachment metal 23 fastened to the rope stopper 18 and a suspension wheel 24 that is rotatably supported by the attachment metal 23 and around which the main rope 15 is wound. The rotating shaft of the suspension wheel 24 is parallel and horizontal to the width direction of the car 3.

  A plurality (four in this case) of terminal fastening holes 18 a are provided in the car-side rope stopper 18. In the elevator apparatus before renovation, a rope shackle is inserted through each terminal fastening hole 18a, and the car-side terminal 16 is connected to the car-side rope stopper 18. On the other hand, in the elevator apparatus after the modification, the attachment 23 is fastened to the car-side rope stop 18 using the terminal fastening hole 18a.

  The attachment metal 23 is in contact with the lower surface of the upper surface portion 7a and is fixed to the car-side rope fixing portion 18, and the flat plate-shaped fastening portions 23a project downward from both ends of the fastening portion 23a and face each other. It has a pair of suspension vehicle support parts 23b and 23c.

  The suspension vehicle 24 is disposed between the suspension vehicle support portions 23b and 23c. Both ends in the width direction of the respective suspension vehicle support portions 23b and 23c are in contact with the side surface portions 7b and 7c. The upper part of the mounting bracket 23 is stored inside the upper beam 7. Further, the suspension wheel 24 is disposed below the upper beam 7.

  The fastening portion 23a is fastened to the car side rope stopper 18 via a plurality of fasteners. As each fastener, a combination of a bolt 25 and a nut 26 is used. The fastening portion 23 a is provided with a plurality of bolt insertion holes (fastener insertion holes) 23 d through which the bolts 25 are inserted. The bolt insertion hole 23d is disposed at a position (overlapping position) corresponding to the terminal fastening hole 18a. The bolt 25 is passed from the lower side of the fastening portion 23a to the bolt insertion hole 23d and the terminal fastening hole 18a, and is screwed to the nut 26 on the car-side rope fixing portion 18.

  The counterweight suspension vehicle device 22 includes a mounting bracket 23 and a suspension vehicle 24 similar to the car suspension vehicle device 21. The attachment weight 23 of the counterweight suspension vehicle device 22 is fastened to the upper portion of the counterweight-side leash retaining portion 19 in an upside down direction with respect to FIG. ing. Moreover, the suspension vehicle 24 of the counterweight suspension vehicle device 22 is disposed on the upper side of the upper frame 9c.

  When the 1: 1 roping elevator apparatus shown in FIGS. 1 and 2 is refurbished to the 2: 1 roping elevator apparatus shown in FIGS. 3 and 4, the car side terminal block 18 of the elevator apparatus before the refurbishment is used. 16 is removed, and the counterweight-side terminal 17 is removed from the counterweight-side leash stopper 19. Thereafter, the car suspension device 21 is fastened to the car-side rope stopper 18 using the terminal fastening hole 18 a of the car-side rope stopper 18. Similarly, the counterweight suspension vehicle device 22 is fastened using the terminal fastening hole of the counterweight side leash stopper 19.

  In such an elevator apparatus and its repairing method, the suspension vehicle apparatuses 21 and 22 are fastened to the cleat parts 18 and 19 using the terminal fastening holes 18a provided in the existing cleat parts 18 and 19, Drilling and welding can be eliminated, and attachment work of the suspension vehicle devices 21 and 22 can be facilitated on site.

  In addition, since the upper beam 7 and the upper frame 9c before the repair can be used, it is possible to reduce the amount of resources used and the equipment cost.

  Further, the mounting bracket 23 of the car suspension device 21 is stored inside the upper beam 7, and both end portions in the width direction of the suspension vehicle support portions 23b and 23c are in contact with the side surface portions 7b and 7c. It is possible to receive the horizontal force generated on the suspension wheel 24 by the upper beam 7.

Embodiment 2. FIG.
Next, FIG. 6 is an exploded perspective view showing the upper beam 7 of the car 3 and the car suspension device 21 according to the second embodiment of the present invention. The configuration of the entire elevator device and the basic repair method are shown in the first embodiment. It is the same. In the figure, the upper beam 7 has first and second beam members 27a and 27b arranged in parallel with a space therebetween.

  The car suspension device 21 has an attachment 28 fastened to the rope stopper 18 and a suspension 24 supported rotatably on the attachment 28. The attachment metal 28 has a flat plate-like fastening portion 29 fastened to the rope stopper 18 and a pair of suspension vehicle support portions 30a and 30b facing each other.

  The fastening portion 29 is superimposed on the car-side rope stopper 18 and fastened to the car-side rope stopper 18 via the same fastener (not shown in FIG. 6) as in the first embodiment. The fastening portion 29 is provided with a plurality of bolt insertion holes (fastener insertion holes) 29a. The bolt insertion hole 29a is provided at a position (overlapping position) corresponding to the terminal fastening hole 18a.

  The fastening portion 29 is formed with a plurality of bent portions 29b that are in contact with the horizontal end surfaces (four sides) of the car-side rope stopper 18 in a bent manner. The suspension vehicle support portions 30a and 30b are fixed to contact portions 29b facing each other via fasteners. The suspension wheel 24 is disposed on the upper side of the upper beam 7.

  The counterweight suspension vehicle device 22 includes a mounting bracket 28 and a suspension vehicle 24 similar to the car suspension vehicle device 21. The attachment 28 of the counterweight suspension vehicle device 22 is fastened to the upper portion of the counterweight-side leash stopper 19 using the terminal fastening hole of the counterweight-side leash stopper 19. Moreover, the suspension vehicle 24 of the counterweight suspension vehicle device 22 is disposed on the upper side of the upper frame 9c.

  In such an elevator apparatus and its repairing method, the suspension vehicle apparatuses 21 and 22 are fastened to the cleat parts 18 and 19 using the terminal fastening holes 18a provided in the existing cleat parts 18 and 19, Drilling and welding can be eliminated, and attachment work of the suspension vehicle devices 21 and 22 can be facilitated on site.

  Further, since the abutment portion 29b is provided on the attachment metal 28, and the attachment metal 28 wraps the rope stoppers 18 and 19 from the surroundings, the horizontal force to the suspension wheel 24 generated in the event of an earthquake or the like. Can be received by the upper beam 7 and the upper frame 9c.

Embodiment 3 FIG.
Next, FIG. 7 is an exploded perspective view showing the upper beam 7 of the car 3 and the car suspension device 21 according to the third embodiment of the present invention. The configuration of the entire elevator device and the basic repair method are shown in the first embodiment. It is the same. In the figure, the fastening portion 23a is provided with a rectangular parallelepiped protrusion (claw portion) 23e protruding upward. The protrusion 23e is disposed in a space between the adjacent bolt insertion holes 23d.

  The car-side rope stopper 18 is provided with a fitting hole 18b into which the protrusion 23e is fitted. The fitting hole 18b is disposed in a space between the terminal fastening holes 18a adjacent to each other.

  A similar projection 23e is also provided on the mounting bracket 23 of the counterweight suspension vehicle device 22, and this projection 23e is fitted into a fitting hole provided in the counterweight-side rope stop portion 19. .

  In such an elevator apparatus and its repairing method, when the suspension apparatuses 21 and 22 are fastened to the clasps 18 and 19, the protrusion 23e is fitted into the fitting hole 18b. Thereby, the horizontal force to the suspension vehicle 24 generated at the time of an earthquake or the like can be received by the upper beam 7 and the upper frame 9c through the protrusion 23e.

  In addition, the shape of the protrusion 23e is not limited to a rectangular parallelepiped shape, and various changes are possible, and the shape of the fitting hole 18b can be changed accordingly. For example, the fitting hole 18b may be oval, square, circular, or oval.

Embodiment 4 FIG.
Next, FIG. 8 is an exploded perspective view showing the upper beam 7 of the car 3 and the car suspension device 21 according to the third embodiment of the present invention. The configuration of the entire elevator device and the basic repair method are shown in the first embodiment. It is the same. In the figure, the fastening portion 23a is provided with a cylindrical protrusion 23f protruding upward. The protrusion 23f is fitted into one of the terminal fastening holes 18a. Fasteners are inserted through the remaining terminal fastening holes 18a.

  A similar projection 23f is also provided on the mounting bracket 23 of the counterweight suspension vehicle device 22, and this projection 23f is fitted into a terminal fastening hole provided in the counterweight-side rope stop portion 19. .

  In such an elevator apparatus and the repair method thereof, when fastening the suspension vehicle apparatuses 21 and 22 to the rope stoppers 18 and 19, the protrusions 23f are fitted into the terminal fastening holes 18a. Thereby, the horizontal force to the suspension vehicle 24 generated at the time of an earthquake or the like can be received by the upper beam 7 and the upper frame 9c through the protrusion 23f.

In the fourth embodiment, only one protrusion 23f is provided, but two or more protrusions 23f may be provided depending on the total number of terminal fastening holes 18a.
Further, the protruding portion 23e of the third embodiment and the protruding portion 23f of the fourth embodiment may be provided in combination.
Further, the fastener is not limited to the bolt 25 and the nut 26.
Furthermore, the main rope 15 is not limited to a rope having a circular cross section, and may be a belt having a flat cross section.
Moreover, in the above example, the present invention is applied to both the car suspension vehicle device 21 and the counterweight suspension vehicle device 22, but it can also be applied to only one of them.
Furthermore, in the above example, the modification from 1: 1 roping to 2: 1 roping was shown, but the type in which the suspension device is attached to the lifting body from the type in which the main rope terminal is connected to the lifting body. The roping method is not limited to this as long as it is a modification to the above.

  DESCRIPTION OF SYMBOLS 1 Hoistway, 3 cages (elevating body), 7 upper beam, 7a upper surface part, 7b, 7c side surface part, 8 counterweight, 9c upper frame (upper beam), 15 main rope, 16 cage side terminal, 17 counterbalance Weight side terminal, 18 car side rope stopper, 18a terminal fastening hole, 18b fitting hole, 19 counterweight side rope stopper, 21 car suspension device, 22 counterweight suspension device, 23, 28 23a, 29 Fastening part, 23b, 23c, 30a, 30b Suspension vehicle support part, 23e, 23f Protrusion part, 24 Suspension wheel, 25 Bolt (fastening tool), 26 Nut (fastening tool), 27a First beam member, 27b Second beam member.

Claims (7)

An elevator apparatus for refurbishing an elevator apparatus before repair of a type in which a main rope terminal is connected to a leash-stop part of an elevator body to an elevator apparatus after repair of a type in which a suspension vehicle apparatus is attached to the elevator body Renovation method,
A step of removing the terminal from the clasp portion of the elevator device before the refurbishment, and a step of fastening a suspension device to the cleat portion using a plurality of terminal fastening holes provided in the leash portion. seen including,
After removing the terminal from the clasp, further comprising the step of processing a new fitting hole in the clasp
The method of repairing an elevator apparatus , wherein, in the step of fastening the suspension vehicle device to the rope stop, a protrusion provided on the suspension vehicle device is fitted into the fitting hole . An elevator apparatus for refurbishing an elevator apparatus before repair of a type in which a main rope terminal is connected to a leash-stop part of an elevator body to an elevator apparatus after repair of a type in which a suspension vehicle apparatus is attached to the elevator body Renovation method,
A step of removing the terminal from the clasp portion of the elevator device before the refurbishment, and a step of fastening a suspension device to the cleat portion using a plurality of terminal fastening holes provided in the leash portion. seen including,
In the step of fastening the hoisting device to the leash, the projecting portion provided on the hoisting device is fitted into some of the terminal fastening holes, and fasteners are attached to the remaining terminal fastening holes. A method of repairing an elevator apparatus characterized by being inserted . A hoisting body which is provided with a horizontal upper beam in the upper part and is moved up and down in the hoistway,
A suspension rope having a main rope that suspends the lifting body, a mounting bracket that is attached to the lifting body, and a suspension wheel that is rotatably supported by the mounting bracket and on which the main rope is wound. Equipped with equipment,
In the central portion of the upper beam, a rope stop portion provided with a plurality of terminal fastening holes is provided,
The attachment metal is fastened to the rope stopper using the terminal fastening hole ,
The upper beam has a horizontal upper surface portion on which the rope stop portion is provided and a pair of side surface portions that protrude downward from both ends in the width direction of the upper surface portion and face each other.
The mounting bracket includes a fastening portion that is in contact with the lower surface of the upper surface portion and fastened to the rope-fastening portion, and a pair of suspension wheel support portions that protrude downward from both ends of the fastening portion and face each other. And
The both ends of the said suspension vehicle support part are contact | abutted to said pair of side part, The elevator apparatus characterized by the above-mentioned . A hoisting body which is provided with a horizontal upper beam in the upper part and is moved up and down in the hoistway,
A suspension rope having a main rope that suspends the lifting body, a mounting bracket that is attached to the lifting body, and a suspension wheel that is rotatably supported by the mounting bracket and on which the main rope is wound. Equipped with equipment,
In the central portion of the upper beam, a rope stop portion provided with a plurality of terminal fastening holes is provided,
The attachment metal is fastened to the rope stopper using the terminal fastening hole ,

The upper beam has first and second beam members arranged parallel to each other at an interval,
The rope stop is provided between the first and second beam members,
The mounting bracket has a fastening portion fastened to the rope stopper and a pair of suspension vehicle support portions facing each other,
The elevator apparatus according to claim 1, wherein the fastening portion is provided with a plurality of contact portions that are in contact with four sides that are horizontal end surfaces of the rope stopper . A hoisting body which is provided with a horizontal upper beam in the upper part and is moved up and down in the hoistway,
A suspension rope having a main rope that suspends the lifting body, a mounting bracket that is attached to the lifting body, and a suspension wheel that is rotatably supported by the mounting bracket and on which the main rope is wound. Equipped with equipment,
In the central portion of the upper beam, a rope stop portion provided with a plurality of terminal fastening holes is provided,
The attachment metal is fastened to the rope stopper using the terminal fastening hole ,
The fitting is provided with a protrusion,
The elevator apparatus according to claim 1, wherein a fitting hole into which the protrusion is fitted is provided in the rope stopper . The elevator apparatus according to claim 5 , wherein the fitting hole is provided between terminal fastening holes adjacent to each other. A hoisting body which is provided with a horizontal upper beam in the upper part and is moved up and down in the hoistway,
A suspension rope having a main rope that suspends the lifting body, a mounting bracket that is attached to the lifting body, and a suspension wheel that is rotatably supported by the mounting bracket and on which the main rope is wound. Equipped with equipment,
In the central portion of the upper beam, a rope stop portion provided with a plurality of terminal fastening holes is provided,
The attachment metal is fastened to the rope stopper using the terminal fastening hole ,
The elevator apparatus according to claim 1, wherein a protrusion that is fitted into a part of the terminal fastening holes is provided on the attachment metal .

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