JP6417459B1 - Elevator rope change assist device - Google Patents

Abstract

An elevator rope replacement assisting device is provided that facilitates passing a rope without removing it from a sheave groove when exchanging the rope of the elevator.
An elevator rope exchange auxiliary device 100 includes a rail portion 2 for installation in a width direction of a groove portion 5 provided in a sheave 1 and a hole portion 7 through which the rope passes, and is fitted in the groove portion 5 of the sheave. The guide portion 3 having a winding mechanism for winding the rope from the hole portion 7 around the groove portion 5 of the sheave, and one end portion of the rail at a position corresponding to the groove portion 5 of the sheave by sliding on the rail portion 2 The bracket portion 4 is supported by the portion 2 and the other end portion is supported by the guide portion 3.
[Selection] Figure 2

Description

  Embodiments described herein relate generally to an elevator rope replacement auxiliary device.

  In the exchange of elevator ropes, the new steel wire rope is wound around the sheave by connecting the tip of the new steel wire rope to the tip of the old steel wire rope and pulling the old steel wire rope. It was.

  However, since the rope is pulled so as to pass through the groove of the sheave when the rope is replaced, there is a problem that initial wear occurs between the rope of the steel wire and the sheave.

  In addition, as an elevator rope member, a rope in which the rope core is covered with a resin has been proposed. Resin-coated ropes do not need to be lubricated with lubrication grease, so they are excellent in reducing the environmental load and have the advantage that the sheave is less likely to be damaged.

  However, when replacing an old steel wire rope with a new resin-coated rope, the resin-coated rope has a higher surface friction coefficient than the steel wire rope, so it does not pass smoothly through the groove in the sheave. There is a problem that it takes time and effort.

JP 2001-287877 A JP 2011-148609 A

  The problem to be solved by the present invention is to provide an elevator rope replacement assisting device that facilitates passing the rope without removing it from the groove of the sheave when exchanging the rope of the elevator.

In order to solve the above-described problems, an elevator rope replacement auxiliary device according to an embodiment has a rail portion installed in a width direction of a groove portion provided in the sheave and a hole portion through which the rope passes, and is fitted into the groove portion of the sheave. combined the rope of the hole portion for hanging around the groove of the sheave, a guide portion and the mechanism of the mechanism and the lower side of the upper portion has a wrapping mechanism configured to separate, one end parts are supported with the rail section at a position corresponding to the groove of the sheave slides the rail portion, the other end is provided with and a bracket portion which is a supported lifting the guide portion.

The illustration of the elevator which concerns on embodiment. The perspective view of the rope replacement | exchange auxiliary | assistance apparatus of the elevator which is embodiment. The front view of the rope replacement | exchange auxiliary | assistance apparatus of the elevator which is 1st Embodiment. The front view of the modification of the rope replacement | exchange auxiliary | assistance apparatus of the elevator which is 1st Embodiment. The front view of the rope replacement | exchange auxiliary | assistance apparatus of the elevator which is 2nd Embodiment. The front view of the rope replacement | exchange auxiliary | assistance apparatus of the elevator which is 3rd Embodiment.

  Hereinafter, an embodiment of an elevator rope replacement auxiliary device will be described with reference to the drawings.

(First embodiment)
Drawing 1 is an illustration figure of the elevator concerning an embodiment. The elevator is provided with a car 81 and a counterweight (counterweight) 82 in a hoistway 80. A control panel 84 for controlling the entire elevator is provided at the upper part of the hoistway 80, and a hoisting machine 83 is further provided. A rope 90 having one end connected to the car 81 and the other end connected to the counterweight 82 is wound around the sheave 1 (1 a) of the hoisting machine 83.

  The car 81 and the rope 90 may be directly connected. Further, as shown in FIG. 1, the car 81 is wrapped around the sheave 1 (1b) provided on the car 81, and the tip of the rope 90 is fixed in the hoistway 80. You may do it. The counterweight 82 and the rope 90 may be directly connected to each other. Further, as shown in FIG. 1, the counterweight 82 and the rope 90 are wound around the sheave 1 (1c) provided in the car 81, and the tip of the rope 90 is fixed in the hoistway 80. You may do it. Further, in addition to the sheave 1 (1a to 1c) of the hoisting machine 83, the car 81, and the counterweight 82, a sheave 1 (1d) may be provided separately.

  When the hoisting machine 83 is driven based on the control of the control panel 84, the car 81 and the counterweight 82 connected to both ends of the rope 90 are moved up and down in opposite directions. In FIG. 1, the sheave 1, the hoisting machine 83, and the control panel 84 are arranged in the upper part of the hoistway 80, but these arrangement locations are not limited to those in FIG. 1. For example, it may be in the lower part of the hoistway 80.

  In the elevator of FIG. 1, when attaching or replacing the rope 90, it is necessary to wrap the rope 90 around all the sheaves 1 (1 a to 1 d).

  FIG. 2 is a perspective view of an elevator rope replacement auxiliary device 100 according to the embodiment. FIG. 3 is a front view of the elevator rope replacement assisting apparatus 100 according to the first embodiment.

  As shown in FIG. 2, the elevator rope exchange auxiliary device 100 of the present embodiment includes a rail portion 2, a guide portion 3, a bracket portion 4, and a support portion 6.

  The sheave 1 may be any of the sheaves 1a to 1d in FIG. Examples of the material of the sheave include casting and nylon. The sheave 1 is provided with grooves 5 in the circumferential direction. The rope 90 is wound around all the grooves 5 of the sheave 1. In FIG. 1, the rope 90 is wound around all nine grooves 5. However, in the present embodiment and the following embodiments, the number of the groove portions 5 is not limited to nine.

  The rail portion 2 of the elevator rope exchange auxiliary device 100 is installed in the width direction of the groove portion 5 provided in the sheave 1. As shown in FIG. 2, in the rail portion 2, an upper rail 2 a and a lower rail 2 b that extend in the width direction of the groove portion 5 are coupled to each other at an end portion 2 r of the rail portion 2. However, the rail part 2 shall not be limited to the shape of FIG. For example, the upper rail 2a and the lower rail 2b may not be coupled at the end 2r.

As shown in FIG. 3, the guide portion 3 has a hole portion 7. The hole 7 is a gap through which the rope 90 is inserted. The guide part 3 is fitted in the groove part 5. The guide portion 3 has a winding mechanism for winding the rope 90 from the hole portion 7 around the groove portion 5. As shown in FIG. 3, the guide portion 3 is an upper guide end portion 31 configured on the upper side of the hole portion 7. And a lower guide end portion 32 configured on the lower end side of the hole portion 7. The upper guide end 31 is a semi-cylindrical portion above the central axis of the hole 7. The lower guide end 32 is a semi-cylindrical portion below the central axis of the hole 7. The lower guide end portion 32 is fitted in the groove portion 5. The upper guide end portion 31 and the lower guide end portion 32 are configured to be detachable.

  The winding mechanism in the present embodiment slides the upper guide end 31 and the lower guide end 32 along the circumferential direction of the groove 5 of the sheave 1 (the direction of the arrow in FIG. 2) to separate them. The rope 90 inserted through the hole 7 is wound around the groove 5 of the sheave 1.

  As shown in FIGS. 2 and 3, the bracket portion 4 has an L-shape. One end of the bracket portion 4 is supported by the rail portion 2 by the support portion 6. The bracket portion 4 can slide together with the support portion 6 in the gap between the upper rail 2 a and the lower rail 2 b of the rail portion 2. Furthermore, the bracket part 4 can be fixed at a position corresponding to the groove part 5 of the sheave 1. The other end portion of the bracket portion 4 is supported by the guide portion 3, and the rope 90 inserted through the hole portion 7 of the guide portion 3 can slide along the rail portion 2.

  As shown in FIG. 3, the rope 90 is covered with a resin 92 such as polyurethane on a twisted steel wire rope 91 in which strands are bundled. Polyurethane has a higher coefficient of friction than castings and nylon, which are sheave materials. If the rope 90 is pulled while the rope 90 is detached from the groove portion 5 of the sheave 1, the sheave 1 is damaged.

  For this reason, it is possible to prevent the sheave 1 from being damaged by wrapping the rope 90 so as not to be detached from the groove portion 5 of the sheave 1 by using the elevator rope replacement auxiliary device 100 of the present embodiment.

  Moreover, even if it is a case where the steel wire which is not resin-coated is used about the rope 90, the rope 90 is not removed from the groove part 5 of the sheave 1 using the rope exchange auxiliary device 100 of the elevator of this embodiment. In addition, initial wear can be reduced by winding.

  In addition, although the groove part 5 of the sheave 1 used the shape where the center was depressed like FIG.2 and FIG.3, it may be a semicircle shape and a V-shaped groove shape.

  A plurality of guide portions 3 may be supported by the rail portion 2. In FIG. 2, the number of the groove portions 5 of the sheave 1 is nine. When the number of the guide portions 3 is 10 or more and more than the number of the groove portions 5, the surplus guide portions 3 are slid to the end portion of the rail portion 2 (the end portion opposite to the end portion 2r). It is possible. In other words, the guide portion 3 that is not used can be moved away from the sheave 1 and only the guide portion 3 that is used can be fitted into the groove portion 5.

(Modification of the first embodiment)
FIG. 4 is a front view of a modified example (rope replacement auxiliary device 101) of the elevator rope replacement auxiliary device 100 according to the first embodiment. The upper guide end portion 31 and the lower guide end portion 32 each have a locking portion 9. In this modification, a linear body 8 such as a string or a wire can be connected to each locking portion 9. Thereby, the upper guide end 31 can lock the lower guide end 32.

  When an operator attaches or replaces the rope 90 or replaces the lower guide end 32 by mistake, the linear body 8 connects the lower guide end 32 to the upper guide end 31. Thus, it is prevented from falling to the lowest layer of the hoistway 80.

  As described above, the elevator rope replacement auxiliary device of the present embodiment can easily pass the rope without removing it from the groove of the sheave when exchanging the rope of the elevator.

(Second Embodiment)
The structure of the elevator in 2nd Embodiment is the same as that of FIG. Further, the perspective view of the elevator rope replacement auxiliary device 200 in the second embodiment is the same as FIG. However, in the winding mechanism of the first embodiment, the lower guide end portion 32 of the guide portion 3 slides (slides in the direction of the arrow in FIG. 2), whereas the winding mechanism of the second embodiment has a guide. A lower portion of the portion 3 (a slide portion 34 described later) slides along the circumferential direction of the guide portion 3.

  FIG. 5 is a front view of an elevator rope replacement assisting apparatus 200 according to the second embodiment. FIG. 5A is a diagram of the elevator rope replacement auxiliary device 200 in a state where the rope 90 is inserted into the hole 7. FIG. 5B is a diagram of the elevator rope replacement assisting apparatus 200 in a state where the rope 90 is moved from the hole 7 to the groove 5 and wound.

  As shown in FIG. 5A, the guide portion 3 includes a slide guide portion 33 configured on the upper side of the hole portion 7 and a slide portion 34 configured on the lower side of the hole portion 7. Yes.

  The slide portion 34 is provided with a handle 35. The handle 35 can be rotated in the circumferential direction of the guide portion 3. The handle 35 is rotated to slide the slide portion 34 on the inner peripheral surface of the slide guide portion 33 to form the opening portion 71 in the hole portion 7. In the winding mechanism of the present embodiment, the opening 71 is formed by the rotation of the handle 35, and when the opening 71 becomes wider than the width of the rope 90, the rope 90 is grooved 5 of the sheave 1 from the opening 71. Moved to and wrapped around.

  The handle 35 can be slid by an operator. As an example, the attachment position of the handle 35 is provided on the semi-cylindrical edge of the slide portion 34 as shown in FIG. However, the attachment position of the handle 35 is not limited to the form of FIG.

  As described above, the elevator rope replacement auxiliary device of the present embodiment can easily pass the rope without removing it from the groove of the sheave when exchanging the rope of the elevator.

(Third embodiment)
The elevator rope replacement assisting device 300 of the third embodiment is the same as that of the guide portion 3 in the first embodiment and its modifications, and the elevator rope replacement assisting device (100, 101, 200) of the second embodiment. An insertion assisting mechanism for assisting the insertion of the rope 90 into the inner peripheral surface of the hole 7 is provided. FIG. 6 is a front view of an elevator rope replacement assisting device 300 and an insertion assisting mechanism according to the third embodiment. FIG. 6 shows the elevator rope replacement assisting apparatus 100 according to the first embodiment provided with an insertion assisting mechanism.

  FIG. 6A shows a structure in which a guide roller 10 is provided on the lower side of the inner peripheral surface of the hole 7 as an insertion assisting mechanism. The guide roller 10 is provided at the lower guide end 32 and rotates so as to push out a rope 90 (not shown in FIG. 6) in the cylindrical axis direction of the hole 7. For this reason, the guide roller 10 can assist the insertion of the rope 90.

  FIG. 6B shows a structure in which a bearing ball 11 is provided on the lower side of the inner peripheral surface of the hole 7 as an insertion assisting mechanism. The bearing ball 11 is provided along the cylindrical axis direction of the lower guide end portion 32. Since the contact area between the rope 90 and the bearing ball 11 is smaller than the contact area between the rope 90 and the lower guide end 32 in the first embodiment, the frictional resistance is reduced. For this reason, the bearing ball 11 can assist the insertion of the rope 90.

  FIG. 6C shows a low friction member 12 having a lower friction coefficient than the resin portion of the resin-coated rope 90 on the lower side (lower guide end portion 32) of the inner peripheral surface of the hole 7 as an insertion assisting mechanism. This is the structure provided. When polyurethane is provided as the resin 92, the low friction member 12 is a member having a lower friction than polyurethane. Alternatively, the low friction member 12 may be formed by applying a chemical such as a slip agent to the member. Thereby, the friction between the resin 92 and the low friction member 12 is reduced, and the insertion of the rope 90 can be assisted.

  The guide roller 10, the bearing ball 11, and the low friction member 12 in FIGS. 6A to 6C are examples of the insertion assisting mechanism.

  6A to 6C, when an insertion assisting mechanism is provided in the elevator rope replacement assisting device 200 of the second embodiment, an insertion assist is provided in the slide portion 34 instead of the lower guide end portion 32. A mechanism is provided.

  As described above, the elevator rope replacement auxiliary device of the present embodiment can easily pass the rope without removing it from the groove of the sheave when exchanging the rope of the elevator.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Sheave 2 ... Rail part 3 ... Guide part 31 ... Upper guide end part 32 ... Lower guide end part 33 ... Slide guide part 34 ... Slide part 35 ... Handle 4 ... Bracket part 5 ... Groove part 6 ... Support part 7 ... Hole 71 ... Opening 8 ... Linear body (wire, string)
DESCRIPTION OF SYMBOLS 9 ... Locking part 10 ... Guide roller 11 ... Bearing ball 12 ... Low friction member 80 ... Hoistway 81 ... Car 82 ... Counterweight 83 ... Hoisting machine 84 ... Control panel 90 ... Rope 91 ... Steel wire rope 92 ... Resin 100, 101, 200, 300 ... Rope exchange auxiliary device

Claims (9)

A rail part installed in the width direction of the groove part applied to the sheave;
There is a hole through which the rope passes, and the upper side mechanism and the lower side mechanism are separated to fit into the groove portion of the sheave and wind the rope of the hole around the groove portion of the sheave. A guide portion having a winding mechanism configured;
A bracket portion first end being supported to the rail unit at a position corresponding to the groove of the sheave slides the rail portion, the other end being a supporting lifting the guide portion,
Elevator rope replacement assisting device. The guide portion has an upper guide end portion configured on the upper side of the hole portion and a lower guide end portion configured on the lower end side of the hole portion in a detachable manner,
The winding mechanism separates the upper guide end portion and the lower guide end portion along the circumferential direction of the groove portion of the sheave, and winds the rope inserted through the hole portion around the groove portion of the sheave. ,
The elevator rope replacement auxiliary device according to claim 1. The upper guide end portion and the lower guide end portion each have a locking portion, and the upper guide end portion connects the lower guide end portion by connecting a linear body to each of the locking portions. Locked
The elevator rope replacement auxiliary device according to claim 2. The guide part has a slide guide part configured on the upper side of the hole part, and a slide part configured on the lower side of the hole part,
The winding mechanism rotates a handle provided on the slide portion in a circumferential direction of the guide portion, and slides the slide portion on an inner peripheral surface of the slide guide portion, so that the hole portion Forming an opening, and winding the rope around the groove of the sheave from the opening;
The elevator rope replacement auxiliary device according to claim 1. The guide portion has an insertion assisting mechanism for assisting the insertion of the rope on the inner peripheral surface of the hole portion.
The elevator rope replacement auxiliary device according to any one of claims 1 to 4. The insertion assist mechanism is provided with a guide roller on the lower side of the inner peripheral surface of the hole,
The elevator rope replacement auxiliary device according to claim 5. The insertion assist mechanism is provided with a bearing ball on the lower side of the inner peripheral surface of the hole,
The elevator rope replacement auxiliary device according to claim 5. The insertion assist mechanism is provided with a low friction member having a lower coefficient of friction than a resin-coated rope on the lower side of the inner peripheral surface of the hole.
The elevator rope replacement auxiliary device according to claim 5. A plurality of the guide portions are supported on the rail portion, and when the number of the guide portions is larger than the number of the groove portions of the sheave, the surplus guide portion may slide to the end portion of the rail portion. Is possible,
The elevator rope replacement auxiliary device according to any one of claims 1 to 8.