JP7448066B1 - Rope groove processing method for elevator hoisting device, manufacturing method for elevator hoisting device, elevator hoisting device, rope groove processing system, and main rope removal method for elevator device - Google Patents

Abstract

[Problem] A rope groove machining method for an elevator hoisting device, which can secure a space for arranging a processing device 100 even when the space around a sheave 81 or a deflection wheel 9 is narrow. A method for manufacturing a hoisting device, a hoisting device for an elevator, a rope groove processing system, and a method for removing a main rope of an elevator device are obtained.
A rope groove machining method for an elevator hoisting device includes a moving step of moving a deflection wheel 9 from a first position on a machine base 5 to a second position on the machine base 5 different from the first position. , an arrangement step of arranging the processing device 100 so as to face the rope groove formed on the moved deflection wheel 9, and a processing step of rotating the deflection wheel 9 and removing the rope groove with the processing device 100 arranged. have
[Selection diagram] Figure 7

Description

The present disclosure relates to a rope groove processing method for an elevator hoisting device, a method for manufacturing an elevator hoisting device, an elevator hoisting device, a rope groove processing system, and a main rope removal method for an elevator device.

In the conventional rope groove machining method for elevator hoisting equipment, the grindstone is placed so as to face the part of the rope groove of the sheave or deflection wheel where the main rope is not wound, and the machining equipment is placed on the hoisting machine stand. After the sheave is fixed to the rope, the sheave is rotated in one direction or both directions by a motor, and the rope groove is removed by a grindstone (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 2007-238296

The above-described conventional rope groove machining method for an elevator hoisting device has a problem in that if the space around the sheave or deflection wheel is narrow, space for arranging the machining device cannot be secured.

The present disclosure has been made in order to solve the above problems, and even if the space around the sheave or deflection wheel is narrow, it is possible to secure a space for arranging processing equipment for an elevator. The object of the present invention is to obtain a rope groove processing method for a hoisting device, a method for manufacturing an elevator hoisting device, an elevator hoisting device, a rope groove processing system, and a method for removing a main rope of an elevator device.

A rope groove machining method for an elevator hoisting device according to the present disclosure includes a hoisting machine having a machine base, a sheave supported by the machine base and around which a main rope is wound, and a hoist supported at a first position of the machine base. In the method for machining a rope groove in an elevator hoisting device having a deflection wheel around which a main rope is wound, the deflection wheel is moved from a first position to a second position of a machine platform different from the first position. a moving step of arranging a processing device to face the rope groove formed in the moved deflecting wheel; and a processing step of rotating the deflecting wheel and removing the rope groove with the arranged processing device. have

A rope groove machining method for an elevator hoisting device according to the present disclosure includes a hoisting machine having a machine base, a sheave supported by the machine base and around which a main rope is wound, and a hoist supported at a first position of the machine base. In the method for machining a rope groove in an elevator hoisting device having a deflection wheel around which a main rope is wound, the deflection wheel is moved from a first position to a second position of a machine platform different from the first position. a moving step of arranging the processing device between the sheave and the deflection wheel so as to face the rope groove formed in the sheave; and a step of arranging the processing device between the sheave and the deflection wheel so as to face the rope groove formed in the sheave; and a processing step of removing the rope groove, and the second position is a position farther from the sheave than the first position.

A method for manufacturing an elevator hoisting device according to the present disclosure includes: a machine base; a hoist having a sheave supported by the machine base and around which a main rope is wound; a hoist supported at a first position of the machine base; In a method of manufacturing an elevator hoisting device including a deflector wheel around which a main rope is wound, a moving step of moving the deflector wheel from a first position to a second position on a machine platform different from the first position. , a arranging step of arranging a processing device to face the rope groove formed in the moved deflection wheel, and a processing step of rotating the deflection wheel and removing the rope groove with the arranged processing device.

A method for manufacturing an elevator hoisting device according to the present disclosure includes: a machine base; a hoist having a sheave supported by the machine base and around which a main rope is wound; a hoist supported at a first position of the machine base; In a rope groove machining method for an elevator hoisting device comprising a deflector wheel around which a main rope is wound, the deflector wheel is moved from a first position to a second position on a machine platform different from the first position. a step of arranging a processing device between the sheave and the deflection wheel so as to face the rope groove formed in the sheave; and a step of arranging a processing device between the sheave and the deflection wheel to face the rope groove formed in the sheave; The second position is further away from the sheave than the first position.

An elevator hoisting device according to the present disclosure includes a machine base, a hoist having a sheave supported by the machine base and around which a main rope is wound, and a hoist that is supported at a first position of the machine base and has a main rope wrapped around it. a deflection wheel having a rope groove formed thereon, and a slide for moving the deflection wheel from a first position to a second position in which a processing device for removing the rope groove can be disposed facing the rope groove; a mechanism, the second position being a different position of the machine platform than the first position.

A rope groove machining system according to the present disclosure includes an elevator hoisting device according to the present disclosure, and a processing device that is disposed to face the rope groove and removes the rope groove.

A method for removing a main rope of an elevator apparatus according to the present disclosure includes the steps of fixing the position of a car connected to one end of the main rope wound around a sheave and a deflection wheel, and fixing the position of a car connected to the other end of the main rope. fixing the position of the counterweight, and moving the deflection wheel supported at the first position of the machine platform from the first position to the first position with the car and counterweight positions fixed; and removing the main rope from the sheave or deflection wheel with the deflection wheel in the second position, the second position being in the first position. The location is closer to the sheave than the actual location.

A rope groove processing method for an elevator hoisting device, a method for manufacturing an elevator hoisting device, an elevator hoisting device, a rope groove processing system, and a main rope removal method for an elevator device according to the present disclosure include a sheave wheel or a deflection wheel. Even if the space around the machine is narrow, it is possible to secure a space for arranging the processing equipment.

FIG. 2 is a side view of the elevator apparatus in Embodiment 1. FIG. 2 is a plan view of the hoisting device in the first embodiment. FIG. 2 is a sectional view taken along the line A-A' of the hoisting device in the first embodiment. FIG. 3 is a sectional view of the main body of the sheave in Embodiment 1. FIG. 3 is a sectional view of the main body of the deflection wheel in Embodiment 1. FIG. 2 is a plan view of the hoisting device in the first embodiment. FIG. 3 is a sectional view taken along the line B-B' of the hoisting device in the first embodiment. FIG. 3 is a sectional view of a hoisting device in a modification of the first embodiment. FIG. 3 is a sectional view of a hoisting device in a modification of the first embodiment. FIG. 3 is a plan view of a hoisting device in a modification of the first embodiment. FIG. 3 is a sectional view taken along the line C-C' of the hoisting device in a modification of the first embodiment. FIG. 3 is a plan view of a hoisting device in a second embodiment. FIG. 3 is a sectional view taken along line DD' of the hoisting device in Embodiment 2; FIG. 3 is a side view of a hoisting device in a second embodiment. FIG. 3 is a plan view of a hoisting device in a second embodiment. FIG. 3 is a sectional view taken along E-E' of the hoisting device in Embodiment 2; FIG. 7 is a side view of an elevator apparatus in Embodiment 3. FIG. 7 is a plan view of a hoisting device in Embodiment 3. FIG. 7 is a plan view of a hoisting device in Embodiment 3. FIG. 7 is a perspective view of a recovery section in Embodiment 4. FIG. 7 is a sectional view of a hoisting device in Embodiment 4. FIG. 7 is a sectional view of a hoisting device in Embodiment 4.

Embodiment 1.
Below, a rope groove processing method of an elevator hoisting device, a manufacturing method of an elevator hoisting device, an elevator hoisting device, a rope groove processing system, and a main rope removal method of an elevator device according to the first embodiment will be explained in detail. explain. Note that the same reference numerals in each drawing represent the same or equivalent configurations.

As shown in FIG. 1, the elevator system includes a car 1, a counterweight 2, a main rope 3, and a hoisting device 4. The rope groove processing system includes a hoisting device 4 and a processing device 100 described below. Note that the hoisting device 4 corresponds to an elevator hoisting device.

Inside the hoistway 201, a car 1 and a counterweight 2 are provided. A car 1 is placed on the side where a hoist 8, which will be described later, is placed, and a counterweight 2 is placed on the side where a diversion wheel 9, which will be described later, is placed. The car 1 is connected to one end of the main rope 3 and moves up and down within the hoistway 201 along car guide rails (not shown). The counterweight 2 is connected to the other end of the main rope 3 and moves up and down within the hoistway 201 along a counterweight guide rail (not shown). The main rope 3 is wound around a sheave 81 and a deflection wheel 9, which will be described later.

A machine room 202 is provided above the hoistway 201 . A hoisting device 4 is provided within the machine room 202. As shown in FIGS. 2 and 3, the hoisting device 4 includes a machine stand 5, a vibration isolating rubber 6, a beam 7, a hoisting machine 8, a deflection wheel 9, and a slide mechanism 10. In the following description, the direction in which the rotating shaft 81c of the hoisting machine 8 extends will be referred to as the depth direction. The direction from the sheave 81 of the hoist 8 toward the deflection sheave 9 is called the right direction, and the direction from the deflection sheave 9 toward the sheave 81 of the hoist 8 is called the left direction. A direction parallel to the right direction and the left direction is called a left-right direction. The direction perpendicular to the depth direction and the left-right direction is called the up-down direction. The up-down direction is a direction parallel to the vertical direction. Note that illustration of the main rope 3 is omitted in FIGS. 2 to 5.

The beams 7 are made of steel extending in the depth direction, and are fixed to the floor 202b of the machine room 202, one each in the left and right directions. A plurality of vibration isolating rubbers 6, which are vibration isolating members, are fixed to the upper part of the beam 7.

The machine stand 5 is fixed to the top of a plurality of vibration isolating rubbers 6. A hole 51 is formed in the machine base 5 and passes through it in the vertical direction. The machine stand 5 supports a hoist 8, a deflection wheel 9, and a slide mechanism 10. The right end of the machine stand 5 is in contact with the wall 202a of the machine room 202.

The hoist 8 is fixed to the upper part of the machine stand 5 and supported by the machine stand 5. The hoist 8 has a sheave 81, a drive section 82, and a bearing stand 83.

The sheave 81 has a main body 81a, a gear 81b, and a rotating shaft 81c.

The main body portion 81a is formed in a cylindrical shape. As shown in FIG. 4, a plurality of rope grooves 81d are formed on the outer periphery of the main body portion 81a, and the main rope 3 is wound around the rope grooves 81d. The rope groove 81d has a curved portion 81e and an undercut portion 81f.

The curved portion 81e is a portion in contact with the main rope 3. An undercut portion 81f is formed at the bottom of the curved portion 81e. A portion of the main rope 3 in contact with the curved portion 81e bites into the undercut portion 81f, thereby generating a frictional force between the main rope 3 and the rope groove 81d. Thereby, the main rope 3 is prevented from slipping on the rope groove 81d, and the main rope 3 moves in conjunction with the rotation of the sheave 81.

As shown in FIG. 2, the gears 81b form a pair and are provided so as to sandwich the main body portion 81a from the depth direction.

One end of the rotating shaft 81c is rotatably supported by the drive unit 82, and the other end is rotatably supported by the bearing stand 83. The drive unit 82 includes a motor and a brake, and rotates and brakes the sheave 81. The main body portion 81a and the gear 81b rotate around the rotating shaft 81c.

The deflection wheel 9 is supported at a first position of the machine platform 5 via a slide mechanism 10. The deflection wheel 9 has a main body 91, a gear 92, and a rotating shaft 93. Note that the first position of the machine platform 5 is a position that supports the deflection wheel 9 during normal operation of the elevator system. In the following description, the first position of the machine platform 5 will be simply referred to as the first position.

The main body portion 91 is formed into a columnar shape. As shown in FIG. 5, a plurality of rope grooves 91a are formed on the outer periphery of the main body portion 91, and the main rope 3 is wound around the rope grooves 91a. The rope groove 91a is formed so that its cross section has a curved shape.

The rope groove 91a is worn out due to minute slippage of the main rope 3 and the like. Due to the different progression of wear for each rope groove 91a, unevenness may occur on the surface of each rope groove 91a, which may cause vibrations in the car. Furthermore, due to the difference in the force exerted by the main rope 3 on each rope groove 91a, uneven wear of the rope grooves 91a may occur.

As shown in FIG. 2, the gears 92 form a pair and are provided so as to sandwich the main body portion 91 from the depth direction.

The rotation shaft 93 is provided to extend in the depth direction, and one end and the other end thereof are rotatably supported by the block 11. A portion of the deflection wheel 9 is located inside a hole 51 formed in the machine base 5. The main body portion 91 and the gear 92 rotate around the rotating shaft 81c.

The slide mechanism 10 is fixed to the upper part of the machine stand 5 and supported by the machine stand 5. The slide mechanism 10 moves the deflection wheel 9 from a first position to a second position, which will be described later. The slide mechanism 10 includes a block 11, a rail 12, a male screw 13, a support base 14, a handle portion 15, a female screw 16, and a connecting member 17.

The block 11 and the rail 12 form a pair and are provided on both sides of the deflection wheel 9 in the depth direction. The block 11 rotatably supports the rotating shaft 93 of the deflection wheel 9. The block 11 is attached to the rail 12 so as to be movable along the rail 12. The rail 12 is provided so as to extend in the left-right direction, and one end and the other end thereof are fixed to the machine stand 5. The rails 12 guide the movement of the block 11. When the block 11 moves along the rail 12, the deflection wheel 9 moves in conjunction with the movement.

The support stand 14 is fixed to the machine stand 5. The male screw 13 is provided so as to extend in the left-right direction, and is rotatably supported by two support stands 14. A handle portion 15 is provided at one end of the male thread 13. When the operator rotates the handle portion 15, the male screw 13 rotates in conjunction with the rotation of the handle portion 15.

A female thread 16 is attached to the male thread 13. When the male screw 13 rotates, the female screw 16 moves in the left-right direction.

The connecting member 17 connects the female thread 16 and one block 11. When the female screw 16 moves, the block 11 connected to the female screw 16 moves, and the deflection wheel 9 supported by the block 11 moves.

Next, a method for processing a rope groove in the hoisting device 4 and a method for manufacturing the hoisting device 4 will be described.

First, the main rope 3 is removed from the sheave and deflection wheel (removal step). In the removal step, the main rope 3 is removed using the main rope removal method of the elevator system.

First, fix the position of car 1. For example, the position of the car 1 is fixed by an emergency stop device (not shown) that is provided on the car 1 and stops the movement of the car 1 in an emergency. When a brake (not shown) included in the emergency stop device clamps the car guide rail, the position of the car 1 is fixed.

Next, the position of the counterweight 2 is fixed. For example, the position of the counterweight 2 is fixed by an emergency stop device (not shown) that is provided on the counterweight 2 and stops the movement of the counterweight 2 in an emergency. When a brake (not shown) included in the emergency stop device clamps the counterweight guide rail, the position of the counterweight 2 is fixed.

Next, with the positions of the car 1 and the counterweight 2 fixed, the deflection wheel 9 is moved from the first position to the second position of the machine base 5 using the slide mechanism 10. In the following description, the second position of the machine platform 5 will be simply referred to as the second position.

Specifically, the worker rotates the handle portion 15 and rotates the male screw 13. When the male screw 13 rotates, the block 11 moves along the rail 12 in conjunction with the leftward movement of the female screw 16, and the deflection wheel 9 moves to the second position as shown in FIGS. 6 and 7. At this time, the deflection wheel 9 moves to the left with the rotating shaft 93 extending in the depth direction. Note that the second position is a position that is different from the first position, is closer to the sheave 81 than the first position, and is closer to the rope groove 91a of the sheave 9 for deflecting the processing device 100, which will be described later. This is a position where it can be placed facing the When the deflection wheel 9 moves to the second position, the tension generated in the main rope 3 decreases and the main rope 3 becomes slack. Further, when the deflecting wheel 9 moves to the second position, a space is created between the wall 202a and the deflecting wheel 9 in which a processing device 100, which will be described later, is arranged.

Finally, with the deflection wheel 9 in the second position, the main rope 3 is removed from the sheave 81 and the deflection wheel 9. Note that the main rope 3 may be removed from either the sheave 81 or the deflection sheave 9. This concludes the explanation of the removal step.

Next, the deflection wheel 9 is moved from the first position to the second position using the slide mechanism 10 (moving step). Specifically, the worker rotates the handle portion 15 and rotates the male screw 13. When the male screw 13 rotates, the block 11 moves along the rail 12 in conjunction with the leftward movement of the female screw 16, and the deflection wheel 9 moves to the second position. At this time, the deflection wheel 9 moves to the left with the rotating shaft 93 extending in the depth direction. The worker adjusts the position of the deflection wheel 9 so that the gear 81b of the sheave 81 and the gear 92 of the deflection wheel 9 mesh with each other. In addition, in the above-mentioned removal step, when the deflection wheel 9 is moved from the first position to the second position, this can be regarded as a moving step.

Next, the processing device 100 is placed so as to face the rope groove 91a formed in the main body portion 91 of the deflection wheel 9 that has been moved to the second position (placement step). At this time, the processing device 100 is placed in the space created by the deflection wheel 9 moving to the second position. Specifically, the processing device 100 is placed above the machine stand 5 and between the wall 202a and the deflection wheel 9. Further, the processing device 100 is equipped with a processing section 101 that is a cutting tool, a grindstone, or the like. The processing device 100 is arranged so that the processing section 101 faces the rope groove 91a. Note that a lifting stand may be installed above the machine stand 5, and the processing device 100 may be placed on top of the lifting stand.

Finally, the deflecting wheel 9 is rotated, and the rope groove 91a of the deflecting wheel 9 is removed by the processing device 100 placed in the placement step (processing step). When the sheave 81 is rotated by the drive unit 82, the gear 81b of the sheave 81 and the gear 92 of the deflection wheel 9 mesh with each other, and the rotation of the sheave 81 is transmitted to the deflection wheel 9. Then, the deflection wheel 9 rotates. While the deflection wheel 9 is rotating, the worn rope groove 91a is removed by the processing device 100. Specifically, processing is performed to smooth the surface of the rope groove 91a by removing unevenness that has occurred in the rope groove 91a, and to reduce the depth of each rope groove 91a when there is variation in the depth of each rope groove 91a. Processing is performed to remove variations. Note that the removal process includes grinding, polishing, cutting, and the like.

In the rope groove processing method of the hoisting device 4, the method of manufacturing the hoisting device 4, and the method of removing the main rope of the elevator device according to the first embodiment, from the first position to the second position. Since the deflecting wheel 9 is moved, even if the space around the deflecting wheel 9 is narrow, a space for arranging the processing device 100 can be secured.

Furthermore, in the rope groove processing method of the hoisting device 4 and the manufacturing method of the hoisting device 4 according to the first embodiment, the deflection wheel 9 is rotated by transmitting the rotation of the sheave 81. , there is no need to separately provide a motor for rotating the deflection wheel 9.

Furthermore, in the rope groove processing method of the hoisting device 4 and the manufacturing method of the hoisting device 4 according to the first embodiment, the gear 81b of the sheave 81 and the gear 92 of the deflection wheel 9 are meshed with each other. As a result, the rotation of the sheave 81 is transmitted to the deflection wheel 9. Therefore, in order to transmit the rotation of the sheave 81 to the deflecting wheel 9, a rotation transmitting member such as a belt or rope wrapped around the main body 81a of the sheave 81 and the main body 91 of the deflecting wheel 9 is not required.

Furthermore, in the rope groove processing method for the hoisting device 4 and the manufacturing method for the hoisting device 4 according to the first embodiment, the deflection wheel 9 is moved using the slide mechanism 10. Therefore, the deflection wheel 9 can be easily moved, and work efficiency is improved.

Furthermore, in the rope groove processing method of the hoisting device 4 and the manufacturing method of the hoisting device 4 according to the first embodiment, the main rope 3 is removed from the sheave 81 and the deflection wheel 9 before the moving step. Remove. Therefore, in the moving step, the movement of the deflecting wheel 9 is not hindered by the main rope 3, and the deflecting wheel 9 can be easily moved.

The hoisting device 4 and the rope groove processing system according to the first embodiment include a slide mechanism 10 that moves the deflection wheel 9 from the first position to the second position. Therefore, the deflecting wheel 9 can be easily moved, and even if the space around the deflecting wheel 9 is narrow, a space for arranging the processing device 100 can be secured. Further, in the rope groove processing system, the processing device 100 is placed in the space created by moving the deflection wheel 9 to the second position, and the rope groove 91a of the deflection wheel 9 can be removed.

In the conventional method for removing the main rope of an elevator system, the position of the car 1 is fixed, the main rope 3 is loosened by lifting the counterweight 2 with a chain block carried into the machine room, and the sheave 81 and deflection wheel 9 are removed. The main rope 3 was removed from the In the conventional method, it takes time and effort to carry the chain hoist into the machine room. On the other hand, in the method for removing the main rope of the elevator apparatus according to the first embodiment, the main rope 3 is loosened by moving the deflecting wheel 9 from the first position to the second position, and the sheave 81 and remove the main rope 3 from the deflection wheel 9. Therefore, the process of carrying the chain block into the machine room can be omitted, so the main rope 3 can be removed from the sheave 81 and the deflection wheel 9 in a shorter time.

Although an example in which the moving step is performed after the removing step has been described, the removing step may be performed after the moving step.

As shown in FIG. 8, a rope 110 may be wound around the main body 81a of the sheave 81 and the main body 91 of the deflecting wheel 9, and the rotation of the sheave 81 may be transmitted to the deflecting wheel 9 via the rope 110. Alternatively, as shown in FIG. 9, a motor 120 may be provided separately, and the rotation of the motor 120 may be transmitted to the deflection wheel 9 via the rope 110 to rotate the deflection wheel 9. Note that instead of the rope 110, a belt, chain, or the like may be used as the rotation transmission member.

As shown in FIGS. 8 and 9, the sheave 81 and the deflection wheel 9 do not need to have the gears 81b and 92.

Note that the hoist 8, deflection wheel 9, and slide mechanism 10 may be supported by the machine stand 5 via another member such as a hoist stand.

As shown in FIGS. 10 and 11, the processing device 100 may be placed between the sheave 81 and the deflection wheel 9 by moving the deflection wheel 9 to the right. In the moving step, the worker rotates the handle portion 15, rotates the male screw 13, and moves the female screw 16 to the right. The block 11 moves along the rail 12 in conjunction with the movement of the female screw 16, and the deflection wheel 9 moves to the second position. In this case, the second position is a position that is different from the first position, is further away from the sheave 81 than the first position, and is located in the rope groove of the sheave 9 that deflects the processing device 100. This is a position where it can be placed opposite to 91a. In the placement step, the processing device 100 is placed between the sheave 81 and the deflection wheel 9. In the processing step, a motor 120 is separately provided, and the rotation of the motor 120 is transmitted to the deflection wheel 9 via the rope 110 to rotate the deflection wheel 9. While the deflection wheel 9 is rotating, the worn rope groove 91a is removed by the processing device 100. Note that in FIG. 10, illustration of the motor 120 and rope 110 is omitted.

In the removal step of the rope groove processing method for an elevator hoisting device and the method for manufacturing an elevator hoisting device, an example has been described in which the main rope removal method of the elevator device is used. When replacing members of the elevator system such as the rope 3, or when inspecting the elevator system, the method for removing the main rope of the elevator system according to the present disclosure may be used. In this case, the second position is a position different from the first position and closer to the sheave 81 than the first position.

In the method for removing the main rope of an elevator system, the position of the car 1 may be fixed after the position of the counterweight 2 is fixed.

Embodiment 2.
In the first embodiment, an example has been described in which the slide mechanism 10 includes the block 11, the rail 12, the male thread 13, the support base 14, the handle portion 15, the female thread 16, and the connecting member 17. In the second embodiment, an example in which the slide mechanism 10 includes a block 11, a rail 12, and a pin 18 will be described. The differences will be explained below. Note that in FIGS. 12 to 14, illustration of the main rope 3 is omitted.

As shown in FIGS. 12 and 13, the block 11 and the rail 12 form a pair and are provided on both sides of the deflection wheel 9 in the depth direction. The block 11 rotatably supports the rotating shaft 93 of the deflection wheel 9. The block 11 is attached to the rail 12 so as to be movable along the rail 12. The rail 12 is provided to extend in the left-right direction and is fixed to the machine stand 5. The rails 12 guide the movement of the block 11. When the block 11 moves along the rail 12, the deflection wheel 9 moves in conjunction with the movement.

As shown in FIGS. 13 and 14, the rail 12 has a plurality of holes 12a and 12b formed therein. The holes 12a and 12b penetrate in the depth direction. Further, the block 11 is also formed with a hole (not shown) that penetrates in the depth direction.

When the deflection wheel 9 is in the first position, by inserting the pin 18 into the hole of the block 11 and the hole 12a of the rail 12, the position of the block 11 is fixed, and the deflection wheel 9 is fixed in the first position. be done. Further, when the deflecting wheel 9 is in the second position, by inserting the pin 18 into the hole of the block 11 and the hole 12b of the rail 12, the position of the block 11 is fixed, and the deflecting wheel 9 is in the second position. Fixed.

Next, a method for processing a rope groove in the hoisting device 4 and a method for manufacturing the hoisting device 4 will be described.

After performing the removal step, the deflection wheel 9 is moved from the first position to the second position using the slide mechanism 10 (moving step). Specifically, first, the worker pulls out the pin 18 inserted into the hole of the block 11 and the hole 12a of the rail 12, moves the block 11 to the left, and moves the deflection wheel 9 to the second position. let Next, as shown in FIGS. 15 and 16, a worker inserts the pin 18 into the hole in the block 11 and the hole 12b in the rail to fix the position of the deflection wheel 9.

Next, a placement step is performed, and finally a processing step is performed.

Even in the rope groove processing method of the hoisting device 4, the method of manufacturing the hoisting device 4, and the method of removing the main rope of the elevator device according to the second embodiment, it is possible to move from the first position to the second position. Since the deflecting wheel 9 is moved, even if the space around the deflecting wheel 9 is narrow, a space for arranging the processing device 100 can be secured.

The hoisting device 4 and the rope groove processing system according to the second embodiment also include a slide mechanism 10 that moves the deflection wheel 9 from the first position to the second position. Therefore, the deflecting wheel 9 can be easily moved, and even if the space around the deflecting wheel 9 is narrow, a space for arranging the processing device 100 can be secured. Further, in the rope groove processing system, the processing device 100 is placed in the space created by moving the deflection wheel 9 to the second position, and the rope groove 91a of the deflection wheel 9 can be removed.

Furthermore, in the hoisting device 4 and the rope groove processing system according to the second embodiment, the block in which the hole is formed, the rail 12 in which the holes 12a and 12b are formed, the hole in the block, and the hole in the rail. It includes pins inserted into 12a and 12b. Since the hole 12a is formed at a position corresponding to the first position and the hole 12b is formed at a position corresponding to the second position, position adjustment when moving the deflection wheel 9 is facilitated, and work efficiency is improved. do.

Even in the method for removing the main rope of an elevator apparatus according to the second embodiment, the main rope 3 is loosened by moving the deflecting wheel 9 from the first position to the second position, and the sheave 81 and remove the main rope 3 from the deflection wheel 9. Therefore, the process of carrying the chain block into the machine room can be omitted, so the main rope 3 can be removed from the sheave 81 and the deflection wheel 9 in a shorter time.

Embodiment 3.
In the first embodiment, an example in which the rope groove 91a of the deflection wheel 9 is removed has been described. In Embodiment 3, an example will be described in which the rope groove 81d of the sheave 81 is removed. The differences will be explained below.

As shown in FIG. 17, a car 1 and a counterweight 2 are provided in the hoistway 201. A counterweight 2 is arranged on the side where the hoist 8 is arranged, and a car 1 is arranged on the side where the deflection wheel 9 is arranged.

As shown in FIG. 18, the left end of the machine stand 5 is in contact with the wall 202a of the machine room 202. Note that illustration of the main rope 3 is omitted in FIG. 18.

The sheave 81 of the hoist 8 has a main body portion 81a and a rotating shaft 81c. As shown in FIG. 4, the rope groove 81d of the main body portion 81a is worn out due to minute slippage of the main rope 3 and the like. As wear progresses, the depth of the groove of the undercut portion 81f becomes shallow, and a desired frictional force may not be generated between the main rope 3 and the rope groove 81d. Moreover, since the progress of wear differs for each rope groove 81d, unevenness may occur on the surface of the curved portion 81e of each rope groove 81d, which may cause vibrations in the car. Furthermore, due to the difference in the force exerted by the main rope 3 on each rope groove 81d, uneven wear of the curved portion 81e may occur.

Next, a rope groove processing method for the hoisting device 4 and a method for manufacturing the hoisting device 4 will be explained.

First, the main rope 3 is removed from the sheave and deflection wheel (removal step). An example in which a removal step is performed using a method for removing the main rope of an elevator apparatus will be described.

First, the positions of the car 1 and the counterweight 2 are fixed. Next, with the positions of the car 1 and the counterweight 2 fixed, the deflection wheel 9 is moved from the first position to another position using the slide mechanism 10. The other position is a position of the machine platform 5 that is different from the first position and closer to the sheave 81 than the first position. When the deflection wheel 9 moves to another position, the tension generated in the main rope 3 decreases and the main rope 3 becomes slack. Finally, the main rope 3 is removed from the sheave 81 and the deflection wheel 9. This concludes the explanation of the removal step.

Next, as shown in FIG. 19, the deflection wheel 9 is moved from the first position to the second position using the slide mechanism 10 (moving step). Specifically, the worker rotates the handle portion 15 and rotates the male screw 13. When the male screw 13 rotates, the block 11 moves along the rail 12 in conjunction with the rightward movement of the female screw 16, and the deflection wheel 9 moves to the second position. In this case, the second position is a position that is different from the first position, is further away from the sheave 81 than the first position, and is a position where the processing device 100, which will be described later, is deflected from the sheave 9. This is a position where it can be placed facing the rope groove 91a.

Next, the processing device 100 is placed between the sheave 81 and the deflection wheel 9 so as to face the rope groove 81d formed in the main body portion 81a of the sheave 81 (placement step). The processing device 100 is arranged so that the processing section 101 faces the rope groove 81d.

Finally, the sheave 81 is rotated, and the rope groove 81d of the sheave 81 is removed by the processing device 100 placed in the placement step (processing step). A drive section 82 rotates the sheave 81. While the sheave 81 is rotating, the worn rope groove 81d is removed by the processing device 100. Specifically, processing is performed to smooth the surface of the curved portion 81e by removing irregularities generated on the curved portion 81e of the rope groove 81d, and to smoothen the surface of the curved portion 81e when there is variation in the depth of each curved portion 81e. Processing is performed to match the depth of the undercut portion 81f to eliminate variations, and processing is performed to form an undercut portion 81f of a desired depth.

Even in the rope groove processing method of the hoisting device 4 and the method of manufacturing the hoisting device 4 according to the third embodiment, in order to move the deflection wheel 9 from the first position to the second position, Even if the space around the car 81 is narrow, a space for arranging the processing device 100 can be secured.

The hoisting device 4 and rope groove processing system according to the third embodiment also include a slide mechanism 10 for moving the deflection wheel 9 from the first position to the second position. Therefore, the deflecting wheel 9 can be easily moved, and even if the space around the sheave 81 is narrow, a space for arranging the processing device 100 can be secured. Further, in the rope groove processing system, the processing device 100 is placed in the space created by moving the deflection wheel 9 to the second position, and the rope groove 81d of the sheave 81 can be removed and processed.

Even in the method for removing the main rope of an elevator apparatus according to the third embodiment, the main rope 3 is loosened by moving the deflection wheel 9 from the first position to another position, and the sheave 81 and the main rope 3 are loosened. Remove the main rope 3 from the deflection wheel 9. Therefore, the process of carrying the chain block into the machine room can be omitted, so the main rope 3 can be removed from the sheave 81 and the deflection wheel 9 in a shorter time.

Embodiment 4.
The fourth embodiment differs from the first embodiment in that the hoisting device 4 further includes a recovery section 40. The differences will be explained below.

The hoisting device 4 includes a machine stand 5, a vibration isolating rubber 6, a beam 7, a hoisting machine 8, a deflection wheel 9, a slide mechanism 10, and a recovery section 40.

As shown in FIG. 20, the recovery section 40 includes a first plate 41, a second plate 42, and a pin 43. The first plate material 41 and the second plate material 42 are formed in a U-shape. The second plate material 42 is formed to have a smaller width in the depth direction than the first plate material 41 so as to be overlapped with the first plate material 41 . The second plate member 42 has a hole 42a that penetrates in the depth direction and extends in the left-right direction. The pin 43 is inserted into a hole (not shown) formed in the first plate 41 and a hole 42a in the second plate 42, and connects the first plate 41 and the second plate 42 so that they do not separate. .

As shown in FIG. 21, the recovery unit 40 is supported by the machine stand 5 and is arranged below the deflection wheel 9 in the vertical direction. A part of the recovery section 40 is located inside a hole 51 formed in the machine base 5. The first plate material 41 is fixed to the machine stand 5. The second plate material 42 is fixed to the block 11. When the deflection wheel 9 is in the first position, the second plate 42 is stored so as to overlap the first plate 41.

When the block 11 moves along the rail 12, the second plate member 42 fixed to the block 11 moves in conjunction with the movement. As shown in FIG. 22, when the deflection wheel 9 is in the second position, a portion of the first plate 41 and a portion of the second plate overlap. The collection unit 40 collects chips generated when the rope groove 91a of the deflection wheel 9 is removed by the processing device 100 in the processing step.

Even in the rope groove processing method of the hoisting device 4, the method of manufacturing the hoisting device 4, and the method of removing the main rope of the elevator device according to the fourth embodiment, it is possible to move from the first position to the second position. Since the deflecting wheel 9 is moved, even if the space around the deflecting wheel 9 is narrow, a space for arranging the processing device 100 can be secured.

The hoisting device 4 and rope groove processing system according to the fourth embodiment also include a slide mechanism 10 that moves the deflection wheel 9 from the first position to the second position. Therefore, the deflecting wheel 9 can be easily moved, and even if the space around the deflecting wheel 9 is narrow, a space for arranging the processing device 100 can be secured. Further, in the rope groove processing system, the processing device 100 is placed in the space created by moving the deflection wheel 9 to the second position, and the rope groove 91a of the deflection wheel 9 can be removed.

Furthermore, since the hoisting device 4 and the rope groove machining system according to the fourth embodiment include the collecting section 40 that collects chips, scattering of chips is suppressed, and after the machining step cleaning time is reduced. Further, since the collection unit 40 is provided in the machine room 202, falling of chips into the hoistway 201 is suppressed. Further, the recovery unit 40 has a first plate material 41 and a second plate material 42, and the second plate material 42 is stored so as to overlap the first plate material 41. Therefore, the space occupied by the collection section 40 when the collection section 40 is not used can be reduced.

Even in the method for removing the main rope of an elevator apparatus according to the fourth embodiment, the main rope 3 is loosened by moving the deflecting wheel 9 from the first position to the second position, and the sheave 81 and remove the main rope 3 from the deflection wheel 9. Therefore, the process of carrying the chain block into the machine room 202 can be omitted, so the main rope 3 can be removed from the sheave 81 and the deflection wheel 9 in a shorter time.

Note that the recovery unit 40 may include one or three or more plate materials. The recovery unit 40 may be arranged below the sheave 81.

The collection unit 40 does not need to be supported by the machine stand 5. For example, the collection unit 40 may be placed on the floor 202b of the machine room 202.

Hereinafter, various aspects of the present disclosure will be collectively described as supplementary notes.
(Additional note 1)
A hoisting machine having a machine stand, a sheave supported by the machine stand and around which the main rope is wound, and a deflector wheel supported at a first position of the machine stand and around which the main rope is wound. In a rope groove processing method for an elevator hoisting device,
moving the deflection wheel from the first position to a second position of the machine platform different from the first position;
a step of arranging a processing device so as to face the rope groove formed in the moved diverter wheel;
A rope groove machining method for an elevator hoisting device, comprising a machining step of rotating the deflection wheel and removing the rope groove with the disposed machining device.
(Additional note 2)
The rope groove machining method for an elevator hoisting device according to Supplementary Note 1, wherein in the machining step, the deflection wheel is rotated by transmitting the rotation of the sheave.
(Additional note 3)
In the processing step, the gear of the sheave and the gear of the deflection wheel mesh with each other to transmit the rotation of the sheave to the deflection wheel, according to appendix 2. Method.
(Additional note 4)
The elevator hoisting device further includes a slide mechanism that moves the deflection wheel from the first position to the second position,
The rope groove machining method for an elevator hoisting device according to any one of Supplementary Notes 1 to 3, wherein in the moving step, the deflection wheel is moved using the slide mechanism.
(Appendix 5)
further comprising a removing step of removing the main rope from the deflection wheel before the moving step,
5. The rope groove processing method for an elevator hoisting device according to any one of Supplementary Notes 1 to 4, wherein in the moving step, the deflection wheel from which the main rope has been removed is moved.
(Appendix 6)
A hoisting machine having a machine stand, a sheave supported by the machine stand and around which the main rope is wound, and a deflector wheel supported at a first position of the machine stand and around which the main rope is wound. In a rope groove processing method for an elevator hoisting device,
moving the deflection wheel from the first position to a second position of the machine platform different from the first position;
arranging a processing device between the sheave and the deflection sheave so as to face a rope groove formed in the sheave;
a processing step of rotating the sheave and removing the rope groove with the disposed processing device,
The second position is a position farther from the sheave than the first position.
(Appendix 7)
A hoisting machine having a machine stand, a sheave supported by the machine stand and around which the main rope is wound, and a deflector wheel supported at a first position of the machine stand and around which the main rope is wound. In a method of manufacturing a hoisting device for an elevator,
moving the deflection wheel from the first position to a second position of the machine platform different from the first position;
a step of arranging a processing device so as to face the rope groove formed in the moved diverter wheel;
A method for manufacturing an elevator hoisting device, comprising a processing step of rotating the deflection wheel and removing the rope groove using the disposed processing device.
(Appendix 8)
A hoisting machine having a machine stand, a sheave supported by the machine stand and around which the main rope is wound, and a deflector wheel supported at a first position of the machine stand and around which the main rope is wound. In a rope groove processing method for an elevator hoisting device,
moving the deflection wheel from the first position to a second position of the machine platform different from the first position;
arranging a processing device between the sheave and the deflection sheave so as to face a rope groove formed in the sheave;
a processing step of rotating the sheave and removing the rope groove with the disposed processing device,
The method for manufacturing an elevator hoisting device, wherein the second position is further away from the sheave than the first position.
(Appendix 9)
A machine stand and
a winding machine having a sheave supported by the machine platform and around which a main rope is wound;
a diverter wheel supported at a first position of the machine platform and formed with a rope groove around which the main rope is wound;
a slide mechanism for moving the deflection wheel from the first position to a second position where a processing device for removing the rope groove can be placed opposite the rope groove;
In the elevator hoisting device, the second position is a position of the machine platform that is different from the first position.
(Appendix 10)
The elevator according to supplementary note 8, further comprising a recovery section that is arranged below the sheave or the deflection wheel in the vertical direction and that collects chips generated when the rope groove is removed by the processing device. hoisting device.
(Appendix 11)
An elevator hoisting device according to appendix 9 or 10,
A rope groove processing system, comprising: a processing device disposed to face the rope groove and removing the rope groove.
(Appendix 12)
fixing the position of a car connected to one end of a main rope wrapped around the sheave and deflector;
fixing the position of a counterweight connected to the other end of the main rope;
With the positions of the car and the counterweight being fixed, a deflection wheel supported at a first position of the machine base is moved from the first position to a second position of the machine base different from the first position. a step of moving the
removing the main rope from the sheave or the diversion wheel while the diversion wheel is in the second position;
The second position is closer to the sheave than the first position.

1 Car, 3 Main rope, 4 Hoisting device, 5 Machine stand, 8 Hoisting machine, 40 Recovery section, 81 Sheave, 81b Gear, 81d Rope groove, 9 Deflection wheel, 91a Rope groove, 92 Gear, 10 Slide mechanism

Claims (12)

A hoisting machine having a machine stand, a sheave supported by the machine stand and around which the main rope is wound, and a deflector wheel supported at a first position of the machine stand and around which the main rope is wound. In a rope groove processing method for an elevator hoisting device,
moving the deflection wheel from the first position to a second position of the machine platform different from the first position;
a step of arranging a processing device so as to face the rope groove formed in the moved diverter wheel;
A rope groove machining method for an elevator hoisting device, comprising a machining step of rotating the deflection wheel and removing the rope groove with the disposed machining device. 2. The rope groove machining method for an elevator hoisting device according to claim 1, wherein in the machining step, the deflection wheel is rotated by transmitting the rotation of the sheave. 3. The rope groove of an elevator hoisting device according to claim 2, wherein in the processing step, a gear included in the sheave and a gear included in the deflection wheel are meshed with each other to transmit rotation of the sheave to the deflection wheel. Processing method. The elevator hoisting device further includes a slide mechanism that moves the deflection wheel from the first position to the second position,
The rope groove machining method for an elevator hoisting device according to any one of claims 1 to 3, wherein in the moving step, the deflection wheel is moved using the slide mechanism. further comprising a removing step of removing the main rope from the deflection wheel before the moving step,
The rope groove machining method for an elevator hoisting device according to any one of claims 1 to 3, wherein in the moving step, the deflection wheel from which the main rope has been removed is moved. A hoisting machine having a machine stand, a sheave supported by the machine stand and around which the main rope is wound, and a deflector wheel supported at a first position of the machine stand and around which the main rope is wound. In a rope groove processing method for an elevator hoisting device,
moving the deflection wheel from the first position to a second position of the machine platform different from the first position;
arranging a processing device between the sheave and the deflection sheave so as to face a rope groove formed in the sheave;
a processing step of rotating the sheave and removing the rope groove with the disposed processing device,
The second position is a position farther from the sheave than the first position. A hoisting machine having a machine stand, a sheave supported by the machine stand and around which the main rope is wound, and a deflector wheel supported at a first position of the machine stand and around which the main rope is wound. In a method of manufacturing a hoisting device for an elevator,
moving the deflection wheel from the first position to a second position of the machine platform different from the first position;
a step of arranging a processing device so as to face the rope groove formed in the moved diverter wheel;
A method for manufacturing an elevator hoisting device, comprising a processing step of rotating the deflection wheel and removing the rope groove using the disposed processing device. A hoisting machine having a machine stand, a sheave supported by the machine stand and around which the main rope is wound, and a deflector wheel supported at a first position of the machine stand and around which the main rope is wound. In a rope groove processing method for an elevator hoisting device,
moving the deflection wheel from the first position to a second position of the machine platform different from the first position;
arranging a processing device between the sheave and the deflection sheave so as to face a rope groove formed in the sheave;
a processing step of rotating the sheave and removing the rope groove with the disposed processing device,
The method for manufacturing an elevator hoisting device, wherein the second position is further away from the sheave than the first position. A machine stand and
a winding machine having a sheave supported by the machine platform and around which a main rope is wound;
a diverter wheel supported at a first position of the machine platform and formed with a rope groove around which the main rope is wound;
a slide mechanism for moving the deflection wheel from the first position to a second position where a processing device for removing the rope groove can be placed opposite the rope groove;
In the elevator hoisting device, the second position is a position of the machine platform that is different from the first position. 10. The method according to claim 9, further comprising a collection section disposed below the sheave or the diverter sheave in the vertical direction and collecting chips generated when the rope groove is removed by the processing device. Hoisting device for elevators. An elevator hoisting device according to claim 9 or 10;
A rope groove processing system, comprising: a processing device disposed to face the rope groove and removing the rope groove. fixing the position of a car connected to one end of a main rope wrapped around the sheave and deflector;
fixing the position of a counterweight connected to the other end of the main rope;
With the positions of the car and the counterweight being fixed, a deflection wheel supported at a first position of the machine base is moved from the first position to a second position of the machine base different from the first position. a step of moving the
removing the main rope from the sheave or the diversion wheel while the diversion wheel is in the second position;
The second position is closer to the sheave than the first position.

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