JPWO2019230025A1 - Elevator hoisting sheave cleaning tool - Google Patents

Abstract

In a sheave cleaning tool that has multiple rope grooves on which ropes can be hung, which is used in elevator hoisting machines, it is possible to more reliably remove dirt from the rope grooves that wear a lot compared to conventional cleaning tools. We provide cleaning tools for sheaves of elevator hoisting machines. The sheave cleaning tool 10 of the elevator hoisting machine is used for cleaning the sheave 101 having a plurality of rope grooves used in the elevator hoisting machine 100, and is used for cleaning the first cleaning claw 42a and the second cleaning claw. It includes 42b. The first cleaning claw 42a corresponds to the first rope groove 106a included in the plurality of rope grooves and is movable in the depth direction of the first rope groove 106a. The second cleaning claw 42b corresponds to the second rope groove 106b included in the plurality of rope grooves, is movable in the depth direction of the second rope groove 106b, and is independent of the first cleaning claw 42a. And move.

Description

The present invention relates to a cleaning tool for a sheave of an elevator hoisting machine.

Clean the sheave of the elevator hoist during maintenance and inspection of the elevator. At this time, if the rope groove of the sheave is cleaned with a brush, a waste cloth, or the like, it takes a lot of trouble. Therefore, a rope groove cleaning device (hereinafter, referred to as a conventional cleaning tool) for an elevator sheave as described in Patent Document 1 has been proposed.

Japanese Unexamined Patent Publication No. 2003-54854

By the way, a plurality of rope grooves of a sheave have different wear states due to long-term use. Therefore, when a plurality of rope grooves are cleaned with a cleaning spatula composed of one member as in a conventional cleaning tool, the cleaning spatula hits the bottom of the rope groove with a shallow amount of wear and cleans the bottom of the rope groove with a large amount of wear. The spatula does not reach enough. As a result, there is a problem that the dirt on the rope groove cannot be sufficiently removed.

According to the present invention, in a sheave cleaning tool having a plurality of rope grooves on which ropes used in an elevator hoisting machine can be hung, dirt on the rope grooves with a large amount of wear can be removed more reliably as compared with a conventional cleaning tool. It is an object of the present invention to provide a cleaning tool for a sheave of an elevator hoist that can be used.

The cleaning tool for a sheave of an elevator hoist according to an embodiment of the present invention is a cleaning tool for a sheave of an elevator hoist used for cleaning a sheave having a plurality of rope grooves of an elevator hoist. Corresponds to the first rope groove included in the plurality of rope grooves, the first cleaning claw that is movable in the depth direction of the rope groove, and the second rope groove included in the plurality of rope grooves. It is provided with a second cleaning claw that is movable in the depth direction of the sheave groove and that moves independently of the first cleaning claw.

The cleaning tool for a sheave of an elevator hoist according to an embodiment of the present invention is a cleaning tool for a sheave of an elevator hoist used for cleaning a sheave of an elevator hoist, and is a sheave groove of the elevator hoist. A second flat plate portion included in the plurality of flat plate portions, rather than the tip of the first flat plate portion located at one end in the arrangement direction in which the plurality of flat plate portions are arranged, provided with a cleaning claw having a plurality of flat plate portions arranged along the line. The tip of the flat plate is protruding.

The cleaning tool for the sheave of the elevator hoisting machine configured as described above can more reliably remove the dirt on the rope groove as compared with the conventional cleaning tool.

It is a figure which shows the state which the cleaning tool for the sheave of the elevator hoisting machine which concerns on Embodiment 1 is attached to the sheave of an elevator hoisting machine. It is a front view of the cleaning tool for a sheave of the elevator hoisting machine which concerns on Embodiment 1. FIG. It is a figure which shows the internal structure of the pressing part of the movable part which concerns on the cleaning tool for a sheave of the elevator hoisting machine which concerns on Embodiment 1. FIG. It is sectional drawing in the AA cross section of FIG. It is sectional drawing of the lower plate of the cleaning tool for a sheave of the elevator hoisting machine which concerns on Embodiment 1, and the cleaning claw attachment plate. It is a figure which shows the state which the cleaning tool for the sheave of the elevator hoisting machine which concerns on Embodiment 2 is attached to the sheave of an elevator hoisting machine. It is a figure which looked at the cleaning claw in the cleaning tool for a sheave of the elevator hoisting machine which concerns on Embodiment 2 from the direction orthogonal to the rope groove. It is a figure which looked at the cleaning claw in the cleaning tool for a sheave of the elevator hoisting machine which concerns on Embodiment 2 from the direction parallel to the rope groove. FIG. 5 is an enlarged view of the surface of a flat plate portion of a cleaning claw in a sheave cleaning tool for an elevator hoist according to the second embodiment. It is a figure which shows the component part which concerns on the cleaning claw of the cleaning tool for a sheave of the elevator hoisting machine which concerns on Embodiment 2. FIG. FIG. 5 is a diagram schematically showing a state in which a flat plate portion of a cleaning claw in a cleaning tool for a sheave of an elevator hoist according to a second embodiment scrapes off dirt such as lubricating oil stuck to a rope groove. FIG. 5 is a view of a state in which the flat plate portion of the cleaning claw in the cleaning tool for a sheave of an elevator hoist according to the second embodiment is fitted in the rope groove as viewed from a direction parallel to the rope groove. It is a front view of the cleaning tool for a sheave of an elevator hoist according to another embodiment. It is sectional drawing in the BB cross section of FIG. It is a front view of the cleaning tool for a sheave of an elevator hoist according to another embodiment. It is sectional drawing in the CC cross section of FIG. It is a figure which looked at the cleaning claw in the cleaning tool for a sheave of an elevator hoisting machine which concerns on another embodiment, as seen from the direction orthogonal to the rope groove. It is a figure which shows the component of the cleaning claw in the cleaning tool for a sheave of an elevator hoisting machine which concerns on another embodiment. It is an enlarged view of the surface of the flat plate part of the cleaning claw in the cleaning tool for a sheave of an elevator hoisting machine which concerns on another embodiment. It is an enlarged view of the surface of the flat plate part of the cleaning claw in the cleaning tool for a sheave of an elevator hoisting machine which concerns on another embodiment. It is an enlarged view of the surface of the flat plate part of the cleaning claw in the cleaning tool for a sheave of an elevator hoisting machine which concerns on another embodiment.

Hereinafter, a cleaning tool for a sheave of an elevator hoisting machine according to an embodiment will be described with reference to the attached drawings. The same reference numerals are given to the same configurations in each embodiment.

Embodiment 1.
FIG. 1 is a diagram showing a state in which the sheave cleaning tool 10 of the elevator hoisting machine according to the first embodiment is attached to the sheave 101 of the elevator hoisting machine 100. As shown in FIG. 1, the sheave cleaning tool 10 of the elevator hoisting machine is attached to the upper part of the elevator hoisting machine 100, and cleans the rope groove on the sheave 101 where the rope 102 is not hung. The sheave cleaning tool 10 of the elevator hoisting machine is fixed to a mounting seat surface located above the elevator hoisting machine 100 by bolts (not shown).

FIG. 2 is a front view of the sheave cleaning tool 10 of the elevator hoist according to the first embodiment. FIG. 3 is a diagram showing the internal structure of the pressing component 34 of the movable portion 30 according to the sheave cleaning tool 10 of the elevator hoisting machine according to the first embodiment. As shown in FIG. 2, the sheave cleaning tool 10 of the elevator hoisting machine includes a housing 20, a movable portion 30, and a cleaning portion 40.

The housing 20 includes an upper plate 21, a lower plate 22, two side plates 23, two shafts 24, two upper end stoppers 25, two lower end stoppers 26, and a trapezoidal screw nut 27. The housing 20 is a portion forming the skeleton of the sheave cleaning tool 10 of the elevator hoisting machine, and is made of a material such as stainless steel or aluminum.

The upper plate 21 and the lower plate 22 are flat plate-shaped members, and these are connected via a columnar shaft 24. Specifically, the upper plate 21 is fixed to the upper side of two shafts 24 arranged in parallel by a method such as welding or screwing. Further, the lower plate 22 is fixed to the lower side of two shafts 24 arranged in parallel by a method such as welding or screwing.

The side plate 23 is a flat plate-shaped member. The two side plates 23 are fixed to both side surfaces of the upper plate 21 and the lower plate 22 so as to line up in parallel with the shaft 24. As a result, the upper plate 21, the lower plate 22, and the two side plates 23 form a square-shaped shape so as to surround the two shafts 24.

The upper end stopper 25 and the lower end stopper 26 play a role of regulating the operating range of the movable plate 33 of the movable portion 30, which will be described later. The upper end stopper 25 and the lower end stopper 26 are ring-shaped metal members. The upper end stopper 25 is fixed to the upper part of each shaft 24, and the lower end stopper 26 is fixed to the lower end of each shaft 24.

The trapezoidal screw nut 27 is a cylindrical member that is located substantially in the center of the main surface of the upper plate 21 and penetrates the upper plate 21. A thread groove for passing a trapezoidal screw is cut on the inner surface of the cylinder formed by the trapezoidal screw nut 27.

The movable portion 30 includes a trapezoidal screw 31, a handle 32, a movable plate 33, and eight pressing parts 34.

The trapezoidal screw 31 is a shredded bolt having a trapezoidal thread. Further, the trapezoidal screw 31 is inserted into the trapezoidal screw nut 27 and is positioned so as to be arranged in parallel between the two shafts. The lower end of the trapezoidal screw 31 is located between the upper plate 21 and the lower plate 22, and the upper end of the trapezoidal screw 31 is located on the opposite side of the upper plate 21 with the upper plate 21 interposed therebetween.

The handle 32 is a disk-shaped member that is thick enough to be gripped by a hand. Further, the handle 32 is fixed to the upper end of the trapezoidal screw 31. Then, by rotating the handle 32 clockwise when viewed from above, the trapezoidal screw 31 fixed to the handle 32 also rotates, and the handle 32 and the trapezoidal screw 31 move downward. Further, by rotating the handle 32 counterclockwise when viewed from above, the trapezoidal screw 31 fixed to the handle 32 also rotates, and the handle 32 and the trapezoidal screw 31 move upward.

The movable plate 33 is a flat plate-shaped member made of a material such as stainless steel or aluminum, and is connected to the lower end of the trapezoidal screw 31. Therefore, the movable plate 33 is located in the area surrounded by the upper plate 21, the lower plate 22, and the two side plates 23. Then, as the handle 32 rotates, it moves up and down together with the trapezoidal screw 31. However, since the movable plate 33 is connected to the trapezoidal screw 31 via a bearing provided on the movable plate 33, the movable plate 33 does not rotate together with the trapezoidal screw 31. Further, two shafts 24 penetrate the movable plate 33. As a result, the movable plate 33 moves up and down in the area surrounded by the upper plate 21, the lower plate 22, and the two side plates 23 along the shaft 24 with the shaft 24 as a guide. Further, the movable plate 33 is provided with a screw hole for fixing the pressing component 34 described later. Further, the movable plate 33 is provided with a rectangular hole for the cleaning claw mounting plate 41 described later. The main surface of the movable plate 33 is parallel to the main surface of the upper plate 21 and the lower plate 22.

The pressing component 34 is a member that applies a force for pressing the cleaning claw, which will be described later, downward (in the depth direction of the rope groove), and is a plunger in the present embodiment. As shown in FIG. 3, the pressing component 34 includes an outer cylinder 35, an expansion / contraction member 36, and a contact member 37. Further, the pressing component 34 is provided according to the number of cleaning claws 42 included in the sheave cleaning tool 10 of the elevator hoisting machine. Specifically, two cleaning claws 42 are provided for each of the four cleaning claws 42 of the sheave cleaning tool 10 of the elevator hoisting machine. Therefore, the number of pressing parts 34 contained in the sheave cleaning tool 10 of one elevator hoisting machine is eight. Among the plurality of pressing parts 34, in particular, the pressing component corresponding to the first cleaning claw 42a described later is designated as the first pressing component 34a, and the pressing component corresponding to the second cleaning claw 42b is the second pressing component. It is referred to as a part 34b.

The outer cylinder 35 is a metal cylindrical member. However, the upper end side of the outer cylinder 35 is closed. Therefore, the outer cylinder 35 has a bottomed cylindrical shape. A screw thread is formed on the outer surface of the lower portion of the outer cylinder 35, and this portion is inserted into a screw hole formed in the movable plate 33. As a result, the outer cylinder 35 is fixed to the movable plate 33 while penetrating the movable plate 33.

The telescopic member 36 is a coil spring and is housed inside the outer cylinder 35. The upper end of the coil spring is located at the bottom of the outer cylinder 35, and the lower end is in contact with the contact member 37 described later.

The contact member 37 is a columnar member made of a resin such as POM. The upper end of the contact member 37 is in contact with the lower end of the telescopic member 36. The upper portion of the contact member 37 is located inside the outer cylinder 35, and the lower portion of the contact member 37 protrudes from the outer cylinder 35. Further, the lower portion of the contact member 37 projects below the movable plate 33. The lower end of the contact member 37 has a slightly rounded shape in order to prevent the cleaning portion 40 from being damaged when it comes into contact with the cleaning portion 40.

FIG. 4 is a cross-sectional view taken along the line AA of FIG. FIG. 5 is a cross-sectional view of a lower plate 22 and a cleaning claw attachment plate 41 of a sheave cleaning tool for an elevator hoist according to the first embodiment.

As shown in FIG. 4, the cleaning unit 40 includes four cleaning claw mounting plates 41 and four cleaning claws 42. In the following, among the four cleaning claws 42, the cleaning claw corresponding to the first rope groove 106a is the first cleaning claw 42a, and the cleaning claw corresponding to the second rope groove 106b is the second cleaning. It is called a claw 42b.

The cleaning claw mounting plate 41 is a member in which two rectangular parallelepipeds are stacked one above the other and is made of stainless steel, aluminum, or the like. The upper surface of the rectangular parallelepiped located at the upper part contacts the lower end of the contact member 37 of the pressing component 34. Further, as shown in FIG. 5, the upper rectangular parallelepiped 41a is located above the lower plate 22. The lower rectangular parallelepiped 41b is positioned so as to penetrate the lower plate 22. Specifically, a part of the rectangular parallelepiped 41b is located in the hole H provided in the lower plate 22. Further, the other portion of the rectangular parallelepiped 41b protrudes above or below the movable plate 33. Here, the hole H provided in the lower plate 22 is slightly larger than the width of the rectangular parallelepiped 41b. Therefore, the rectangular parallelepiped 41b can move up and down inside the hole H provided in the movable plate 33. However, the rectangular parallelepiped 41a cannot pass through the hole H provided in the lower plate 22 larger than the rectangular parallelepiped 41b. As a result, the cleaning claw mounting plate 41 is prevented from falling off through the hole H of the lower plate 22.

The cleaning claw 42 including the first cleaning claw 42a and the second cleaning claw 42b shown in FIG. 4 is a resin member. Further, the upper end of the first cleaning claw 42a is fixed to the lower end of the cleaning claw mounting plate 41 with an adhesive or the like. The same applies to the second cleaning claw 42b and the other cleaning claw 42. Further, in the first cleaning claw 42a, when the cleaning tool 10 for the sheave of the elevator hoisting machine is attached to the sheave 101 of the elevator hoisting machine 100, the sheave 101 is generated by the force from the first pressing component 34a. It is pressed against the rope groove 106a. Further, regarding the second cleaning claw 42b, when the cleaning tool 10 for the sheave of the elevator hoisting machine is attached to the sheave 101 of the elevator hoisting machine 100, the sheave is driven by the force from the second pressing part 34b. It is pressed against the rope groove 106b of 101. As for the other cleaning claws 42, when the sheave cleaning tool 10 of the elevator hoisting machine is attached to the sheave 101 of the elevator hoisting machine 100, it is pressed against the rope groove.

In the sheave cleaning tool 10 of the elevator hoisting machine configured as described above, dirt on the rope groove having a large amount of wear can be removed more reliably as compared with the conventional cleaning tool. Specifically, when a plurality of rope grooves are cleaned with a cleaning spatula composed of one member as in a conventional cleaning tool, the cleaning spatula hits the bottom of the rope groove with a shallow amount of wear, and the rope groove with a large amount of wear The cleaning spatula does not reach the bottom sufficiently. As a result, the dirt on the rope groove, which has a large amount of wear, cannot be sufficiently removed. On the other hand, in the sheave cleaning tool 10 of the elevator hoisting machine, the pressing component 34 moves together with the movable plate 33. Therefore, when the handle 32 is operated to move the movable plate 33 downward, the lower end of the contact member 37 of the pressing component 34 comes into contact with the upper surface of the cleaning claw mounting plate 41 of the cleaning portion 40. When the contact member 37 comes into contact with the cleaning claw mounting plate 41, the contact member 37 is pushed by the telescopic member 36 located in the outer cylinder 35 of the pressing component 34 to press the cleaning claw mounting plate 41. As a result, the first cleaning claw 42a is pressed against the first rope groove 106a, and the second cleaning claw 42b is pressed against the second rope groove 106b. However, the elastic member 36, which is a coil spring, expands and contracts so that the first cleaning claw 42a and the second cleaning claw 42b correspond to the depth of the rope groove 106a and the rope groove 106b, so that the first cleaning claw 42a and the first cleaning claw 42a and Each cleaning claw mounting plate 41 to which the second cleaning claw 42b is fixed moves up and down. In this way, the first cleaning claw 42a fixed to the tip of the cleaning claw mounting plate 41 can move along the first rope groove 106a toward the depth direction of the first rope groove 106a. .. Similarly, the second cleaning claw 42b can move along the second rope groove 106b in the depth direction of the second rope groove 106b. Further, since the first cleaning claw 42a and the second cleaning claw 42b are pressed by different pressing parts 34, the first cleaning claw 42a and the second cleaning claw 42b can move independently. it can. As a result, in the sheave cleaning tool 10 of the elevator hoisting machine, the first cleaning claw 42a hits the bottom of the rope groove with a shallow wear amount, and the second cleaning claw 42b hits the bottom of the rope groove with a large amount of wear. It is possible to prevent the situation where it is not sufficiently reached. As a result, dirt on the rope groove, which has a large amount of wear, can be removed more reliably as compared with a conventional cleaning tool. It should be noted that the other cleaning claws 42 provided in the sheave cleaning tool 10 of the elevator hoisting machine can also move in the depth direction in the rope groove, and each of the other cleaning claws 42 moves independently. Is possible. Therefore, the first cleaning claw 42a, the second cleaning claw 42b, and the two other cleaning claws 42 can move independently of each other.

Embodiment 2.
FIG. 6 is a diagram showing a state in which the sheave cleaning tool 10A of the elevator hoisting machine according to the second embodiment is attached to the sheave 101 of the elevator hoisting machine 100. Further, FIG. 7 is a view of the cleaning claw in the sheave cleaning tool 10A of the elevator hoisting machine according to the second embodiment as viewed from a direction orthogonal to the rope groove. FIG. 8 is a view of the cleaning claw in the sheave cleaning tool 10A of the elevator hoisting machine according to the second embodiment as viewed from a direction parallel to the rope groove. FIG. 9 is an enlarged view of the surface of the flat plate portion of the cleaning claw in the sheave cleaning tool 10A of the elevator hoisting machine according to the second embodiment. FIG. 10 is a diagram showing components related to cleaning claws of the sheave cleaning tool 10A of the elevator hoisting machine according to the second embodiment.

The difference between the sheave cleaning tool 10A of the elevator hoisting machine according to the second embodiment and the sheave cleaning tool 10 of the elevator hoisting machine shown in FIG. 6 is the cleaning claw. Is. This will be described in more detail below. In the following, in order to avoid redundant description, only the first cleaning claw 42a and the corresponding rope groove 106a among the plurality of cleaning claws provided in the sheave cleaning tool 10A of the elevator hoisting machine are provided. As will be described, the second cleaning claw 42b and the other two cleaning claws 42 included in the sheave cleaning tool 10A of the elevator hoisting machine have the same configuration as the following description.

As shown in FIG. 7, the first cleaning claw 42a of the sheave cleaning tool 10A of the elevator hoisting machine according to the second embodiment has a first flat plate portion 51, a second flat plate portion 52, and a third. It has a flat plate portion 53, a flat plate portion 54, a flat plate portion 55, an interval member 60 sandwiched between the flat plate portions, a pin 70, and a nut 72. Further, the first flat plate portion 51, the second flat plate portion 52, the third flat plate portion 53, the flat plate portion 54, and the flat plate portion 55 are made of a resin such as PPS and have a plate shape. Further, the first flat plate portion 51, the flat plate portion 54, the second flat plate portion 52, the flat plate portion 55, and the third flat plate portion 53 are arranged in a row along the rope groove 106a of the sheave 101. .. Here, the direction in which the first flat plate portion 51, the flat plate portion 54, the second flat plate portion 52, the flat plate portion 55, and the third flat plate portion 53 are lined up is defined as the arrangement direction X. Then, the first flat plate portion 51 is located at one end of the arrangement direction X, and the second flat plate portion 52 is located at the center of the arrangement direction X. Further, the third flat plate portion 53 is located at the other end of the arrangement direction X. The main surface of each flat plate portion is orthogonal to the arrangement direction X.

Further, the tip of the flat plate portion 54 protrudes in the depth direction of the rope groove 106a from the tip of the first flat plate portion 51. Further, the tip of the second flat plate portion 52 protrudes in the depth direction of the rope groove 106a from the tip of the flat plate portion 54. From the above, the tip of the second flat plate portion 52 protrudes in the depth direction of the rope groove 106a rather than the tip of the first flat plate portion 51. As a result, the distance between the tip of the flat plate portion and the bottom of the rope groove 106a becomes narrower from the first flat plate portion 51 to the second flat plate portion 52, and the second flat plate located at the center of the arrangement direction X becomes narrower. The portion 52 is in contact with the bottom of the rope groove 106a. Therefore, it can be said that the distance between the tip of the first flat plate portion 51 and the bottom of the rope groove 106a is wider than the distance between the tip of the second flat plate portion and the bottom of the rope groove 106a. Further, the tip of the flat plate portion 55 protrudes in the depth direction of the rope groove 106a from the tip of the third flat plate portion 53. In addition to this, the tip of the second flat plate portion 52 protrudes in the depth direction of the rope groove 106a from the tip of the flat plate portion 55. From the above, the tip of the second flat plate portion 52 protrudes in the depth direction of the rope groove 106a rather than the tip of the third flat plate portion 53. As a result, the distance between the tip of the flat plate portion and the bottom of the rope groove 106a becomes wider from the second flat plate portion 52 to the third flat plate portion 53. Therefore, it can be said that the distance between the tip of the third flat plate portion 53 and the bottom of the rope groove 106a is wider than the distance between the tip of the second flat plate portion and the bottom of the rope groove 106a.

As shown in FIG. 8, the width of the flat plate portion in the arrangement direction X and the orthogonal direction Z orthogonal to the depth direction of the groove becomes wider from the first flat plate portion 51 toward the second flat plate portion 52. Therefore, it can be said that the width d1 of the first flat plate portion 51 is narrower than the width d2 of the second flat plate portion 52. Further, the width of the flat plate portion in the orthogonal direction Z becomes narrower from the second flat plate portion 52 toward the third flat plate portion 53. That is, it can be said that the width of the third flat plate portion 53 is narrower than the width d2 of the second flat plate portion.

Further, as shown in FIG. 9, the first flat plate portion 51, the second flat plate portion 52, the third flat plate portion 53, the flat plate portion 54, and the flat plate portion 55 have side surfaces that are parallel to the arrangement direction X. Fine irregularities in the shape of a rectangular parallelepiped are provided.

As shown in FIG. 7, the interval member 60 is provided between the flat plate portions. The spacing member 60 is a rectangular parallelepiped member made of resin such as PPS. Here, the width of the spacing member 60 in the orthogonal direction Z is smaller than the width of each flat plate portion. As a result, the first flat plate portion 51
A recess is provided between the flat plate portion 54 adjacent to the flat plate portion 54 and the flat plate portion 54 adjacent to the flat plate portion 54. Since there is also an interval member 60 between the other flat plates, a recess is similarly provided between the flat plates.

As shown in FIG. 7, the pin 70 and the nut 72 are provided between the first flat plate portion 51, the flat plate portion 54, the second flat plate portion 52, the flat plate portion 55, the third flat plate portion 53, and each flat plate portion. The space members 60 are sandwiched from both sides in the arrangement direction X, and these members are fixed. In order to correspond to this, holes for passing pins 70 are formed in each flat plate portion and the spacing member 60.

As shown in FIG. 10, the pin 70 is a bolt having a threaded portion having a thread formed only at the tip end portion. Then, the flat plate portions and the spacing members 60 are alternately fitted into the threadless cylindrical portion of the pin 70, such as the spacing member 60, the first flat plate portion 51, the spacing member 60, the flat plate portion 54, and the spacing member 60. By fastening the nut 72 to the screw portion, each flat plate portion and the spacing member 60 are fixed. Here, on the cylindrical portion of the pin 70, a rectangular parallelepiped protrusion extending in the arrangement direction X, a so-called key, is provided in order to prevent each flat plate portion and the spacing member 60 from moving in the orthogonal direction Z. Therefore, the holes formed in each flat plate portion and the spacing member 60 also have a shape corresponding to the cylindrical portion of the pin 70.

As described above, the sheave cleaning tool 10A of the elevator hoisting machine can improve the durability of the cleaning claws. Specifically, for example, in the first cleaning claw 42a of the sheave cleaning tool 10 of the elevator hoisting machine according to the first embodiment, the rope groove 106a is cleaned by one rectangular parallelepiped member. In this case, dirt such as lubricating oil adhering to the rope groove 106a is scraped off at once, and a large stress is applied to the first cleaning claw 42a. As a result, if the first cleaning claw 42a is continuously used, deformation is likely to occur, so that the first cleaning claw 42a needs to be replaced frequently. On the other hand, as shown in FIG. 11, in the first cleaning claw 42a according to the second embodiment, the sheave 101 rotates from one side of the arrangement direction X to the other side (rotates clockwise on the paper surface of FIG. 11). Then, the first flat plate portion 51 having the widest distance from the bottom of the rope groove 106a first scrapes off the upper layer portion of dirt 200 such as lubricating oil fixed to the bottom of the rope groove 106a. Next, the flat plate portion 54 having a wide distance from the bottom of the rope groove 106a next to the first flat plate portion 51 scrapes out the middle layer portion of the dirt 200 fixed to the bottom of the rope groove 106a. Then, the second flat plate portion 52 in contact with the bottom portion of the rope groove 106a scrapes out the lower layer portion of the dirt 200 fixed to the bottom portion of the rope groove 106a. As described above, in the first cleaning claw 42a related to the sheave cleaning tool 10A of the elevator hoisting machine, the dirt 200 fixed to the rope groove 106a is gradually scraped off by three flat plates. As a result, the stress applied to the first cleaning claw 42a at one time is relaxed, and deformation is less likely to occur. As a result, the durability of the cleaning claw can be improved in the sheave cleaning tool 10A of the elevator hoisting machine.

Further, in the sheave cleaning tool 10A of the elevator hoisting machine, the distance between the tip of the flat plate portion and the bottom of the rope groove 106a becomes wider from the second flat plate portion 52 to the third flat plate portion 53. There is. As a result, in the first cleaning claw 42a according to the second embodiment, assuming that the sheave 101 rotates from the other side to one side in the arrangement direction X (rotates counterclockwise on the paper surface of FIG. 11), the sheave groove 106a The dirt adhering to the bottom of the rope groove 106a is gradually scraped out in the order of the flat plate portion 55 and the second flat plate portion 52 from the third flat plate portion 53 having the widest distance from the bottom portion of the rope groove 106a. Therefore, the stress applied to the first cleaning claw 42a is relaxed, and in the sheave cleaning tool 10A of the elevator hoisting machine, even if the sheave 101 rotates from the other side to one side in the arrangement direction X, the cleaning claw Durability can be increased. From the above, in the sheave cleaning tool 10A of the elevator hoisting machine, the durability of the cleaning claw can be improved regardless of which direction the sheave 101 rotates.

Further, in the sheave cleaning tool 10A of the elevator hoisting machine, the width of the flat plate portion becomes wider from the first flat plate portion 51 toward the second flat plate portion 52. As a result, as shown in FIG. 12, the distance between the side surface of the rope groove 106a and the flat plate portion becomes narrower from the first flat plate portion 51 toward the second flat plate portion 52. As a result, in the first cleaning claw 42a of the sheave cleaning tool 10A of the elevator hoisting machine, when the sheave 101 rotates from one side to the other side of the arrangement direction X, the distance from the side surface of the sheave groove 106a The dirt adhering to the side surface of the rope groove 106a is gradually scraped out from the upper layer portion in the order of the flat plate portion 54 and the second flat plate portion 52 from the widest first flat plate portion 51. As a result, the stress applied to the first cleaning claw 42a is relaxed, and the durability of the cleaning claw can be further enhanced in the sheave cleaning tool 10A of the elevator hoisting machine. Further, the width of the flat plate portion increases from the third flat plate portion 53 toward the second flat plate portion 52. That is, the distance between the side surface of the rope groove 106a and the flat plate portion becomes narrower from the third flat plate portion 53 toward the second flat plate portion 52. As a result, when the sheave 101 rotates from the other side to the one side in the arrangement direction X, the third flat plate portion 53 having the widest distance from the side surface of the rope groove 106a, the flat plate portion 55, and the second flat plate portion In the order of 52, the dirt adhering to the side surface of the rope groove 106a is gradually scraped off from the upper layer portion thereof. Therefore, even when the sheave 101 rotates from the other side to the one side in the arrangement direction X, the stress applied to the first cleaning claw 42a is relaxed, and the sheave cleaning tool 10A of the elevator hoisting machine uses the sheave 101. Even if is rotated from the other side to one side in the arrangement direction X, the durability of the cleaning claw can be further improved.

Further, as described above, in the sheave cleaning tool 10A of the elevator hoisting machine, the stress applied to the first cleaning claw 42a is relaxed, and deformation is less likely to occur. As a result, the first cleaning claw 42a is firmly brought into contact with the rope groove 106a, and as a result, dirt on the rope groove can be removed more reliably.

In the sheave cleaning tool 10A of the elevator hoisting machine, the side surfaces of the first flat plate portion 51, the second flat plate portion 52, the third flat plate portion 53, the flat plate portion 54, and the flat plate portion 55 are finely divided. Unevenness is provided. Therefore, when cleaning the sheave 101, the unevenness scratches the surface of the dirt fixed to the sheave 106a. As a result, the dirt is softened, so that the subsequent flat plate portion can easily scrape the dirt. As a result, the cleaning tool 10A for the sheave of the elevator hoist can more reliably remove the dirt in the sheave groove 106a.

By the way, an interval member 60 is located between the flat plate portions, and as a result, a recess is provided between the flat plate portions. As a result, when cleaning the sheave 101, the dirt scraped from the rope groove 106a is retained in this recess. In this way, the dirt scraped out from the rope groove 106a is held between the flat plate portions, so that the scraped dirt is suppressed from reattaching to the rope groove 106a. In the above description, the first cleaning claw 42a and the rope groove 106a are given as examples, but the same applies to the second cleaning claw 42b, the rope groove 106b, the other cleaning claw 42, and the other rope groove. Can be said.

Further, in the sheave cleaning tool 10A of the elevator hoisting machine, each flat plate portion is a separate member, and these are fixed by a pin 70 and a nut 72. As a result, for example, when the wear of the first flat plate portion 51 progresses, only the first flat plate portion 51 needs to be replaced, and it is not necessary to replace the other flat plate portion.

Other configurations in the sheave cleaning tool 10A of the elevator hoisting machine are the same as those of the sheave cleaning tool 10 of the elevator hoisting machine. Therefore, other configurations of the elevator hoisting machine for the sheave cleaning tool 10A are as described in the elevator hoisting machine for the sheave cleaning tool 10A.

Other embodiments.
The cleaning tool for a sheave of an elevator hoist according to the present invention is not limited to the above-described embodiment and can be changed within the scope of the gist thereof. For example, in the sheave cleaning tool 10 of the elevator hoisting machine shown above, an example is shown in which two pressing parts 34 are provided for each cleaning claw. However, the cleaning tool for the sheave is not limited to the above, and for example, as shown in FIGS. 13 and 14, one cleaning tool may be provided for each cleaning claw. Further, as a member for pressing the first cleaning claw 42a against the rope groove 106a, a leaf spring as shown in FIGS. 15 and 16 may be used instead of the plunger.

Further, as shown in FIG. 17, the tip of each flat plate portion included in the first cleaning claw 42a may be arranged so as to face the center of the sheave 101. Further, as shown in FIG. 18, the shape of the pin 70 may be a shape including a cylindrical cylindrical portion and a rod-shaped protrusion extending parallel to the cylindrical portion and extending from the circular head. At this time, the shape of the holes formed in each flat plate portion and the spacing member 60 for passing the pin 70 is composed of one large circle for passing the cylindrical portion and a small circle for passing the rod-shaped protrusion.

Further, the shape of the unevenness provided on each side surface of the first flat plate portion 51, the second flat plate portion 52, the third flat plate portion 53, the flat plate portion 54, and the flat plate portion 55 is not limited to a rectangular parallelepiped, and is shown in FIG. The cross section shown may be semicircular and extend in the arrangement direction X, or as shown in FIG. 20, the cross section may be triangular and extend in the arrangement direction X, as shown in FIG. As described above, the cross section may be triangular and extends in the depth direction of the rope groove. In the case of the uneven shape shown in FIG. 21, dirt such as lubricating oil adhering to the rope groove is scraped multiple times with one flat plate portion, and it becomes easier to remove dirt such as lubricating oil adhering to the rope groove. .. Further, the main surfaces of the first flat plate portion 51, the second flat plate portion 52, the third flat plate portion 53, the flat plate portion 54, and the flat plate portion 55 may be provided with irregularities.

Further, in the above-described embodiment, an example is shown in which the cleaning claw 42 is composed of a plurality of parts such as each flat plate portion and the spacing member 60. However, the cleaning tool for a sheave according to the present invention is not limited to this, and each flat plate portion and the spacing member 60 and the like may be integrated.

10,10A Elevator hoisting machine sheave cleaner, 34a first pressing part, 34b second pressing part, 42a first cleaning claw, 42b second cleaning claw, 51 first flat plate, 52 2nd flat plate part, 53 3rd flat plate part, 100 elevator hoisting machine, 101 sheave, 106a 1st rope groove, 106b 2nd rope groove

The cleaning tool for a sheave of an elevator hoist according to an embodiment of the present invention is a cleaning tool for a sheave of an elevator hoist used for cleaning a sheave having a plurality of rope grooves of an elevator hoist. Corresponds to the first rope groove included in the plurality of rope grooves, the first cleaning claw that is movable in the depth direction of the rope groove, and the second rope groove included in the plurality of rope grooves. It is provided with a second cleaning claw that is movable in the depth direction of the sheave groove and moves independently of the first cleaning claw, and the first cleaning claw is a plurality of cleaning claws arranged along the sheave groove. The tip of the second flat plate portion included in the plurality of flat plate portions protrudes from the tip of the first flat plate portion having the flat plate portion and located at one end in the arrangement direction in which the plurality of flat plate portions are lined up.

The cleaning tool for a sheave of an elevator hoist according to an embodiment of the present invention is a cleaning tool for a sheave of an elevator hoist used for cleaning a sheave of an elevator hoist, and is a sheave groove of the elevator hoist. A second flat plate portion included in the plurality of flat plate portions, rather than the tip of the first flat plate portion located at one end in the arrangement direction in which the plurality of flat plate portions are arranged, provided with a cleaning claw having a plurality of flat plate portions arranged along the line. The tip of the flat plate portion protrudes , and the width of the first flat plate portion in the orthogonal direction orthogonal to the arrangement direction and the depth direction of the sheave groove is narrower than the width of the second flat plate portion in the orthogonal direction.

Claims (10)

A cleaning tool for a sheave of an elevator hoist used for cleaning a sheave having a plurality of rope grooves of an elevator hoist.
A first cleaning claw that corresponds to the first rope groove included in the plurality of rope grooves and is movable in the depth direction of the rope groove,
A second cleaning claw that corresponds to the second rope groove included in the plurality of rope grooves, is movable in the depth direction of the rope groove, and moves independently of the first cleaning claw.
Cleaning tool for sheaves of elevator hoisting machine equipped with. A first pressing component that applies a force that presses the first cleaning claw against the first rope groove, and
A second pressing component that applies a force that presses the second cleaning claw against the second rope groove, and
The cleaning tool for a sheave of an elevator hoist according to claim 1. The first pressing component and the second pressing component are plungers.
The cleaning tool for a sheave of an elevator hoist according to claim 2. It is a cleaning tool for the sheave of the elevator hoist, which is used for cleaning the sheave of the elevator hoist.
A cleaning claw having a plurality of flat plate portions arranged along the rope groove of the sheave is provided.
The tip of the second flat plate portion included in the plurality of flat plate portions protrudes from the tip of the first flat plate portion located at one end in the arrangement direction in which the plurality of flat plate portions are arranged.
Cleaning tool for sheaves of elevator hoisting machines. The first cleaning claw has a plurality of flat plate portions arranged along the rope groove.
The tip of the second flat plate portion included in the plurality of flat plate portions protrudes from the tip of the first flat plate portion located at one end in the arrangement direction in which the plurality of flat plate portions are arranged.
The cleaning tool for a sheave of an elevator hoist according to any one of claims 1 to 3. The width of the first flat plate portion in the arrangement direction and the orthogonal direction orthogonal to the depth direction of the rope groove is narrower than the width of the second flat plate portion in the orthogonal direction.
The cleaning tool for a sheave of an elevator hoist according to claim 4 or 5. The tip of the second flat plate portion protrudes from the tip of the third flat plate portion located at the other end in the arrangement direction.
The cleaning tool for a sheave of an elevator hoist according to any one of claims 4 to 6. The width of the third flat plate portion in the arrangement direction and the orthogonal direction orthogonal to the depth direction of the rope groove is narrower than the width of the second flat plate portion in the orthogonal direction.
The cleaning tool for a sheave of an elevator hoist according to claim 7. A recess is provided between the first flat plate portion and the flat plate portion adjacent to the first flat plate portion.
The cleaning tool for a sheave of an elevator hoist according to any one of claims 4 to 8. The surface of the plurality of flat plate portions is provided with irregularities.
The cleaning tool for a sheave of an elevator hoist according to any one of claims 4 to 9.

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