TWI668177B - Lockdown device holding tool and method for adjusting position of compensation device - Google Patents

Abstract

An object of the present invention is to provide a locking device holding tool and a position adjustment method of a balance wheel device that can prevent the locking device from malfunctioning.

The locking device holding tool 50 of the present invention is a holding tool for holding the relative position of the locking device 12 to the balance wheel device 5 of the elevator, and includes: an upper portion 51 which is fixed by a frame body 6 fixed to the balance device 5 The upper portion of the bolt mounting portion 13 is supported; the lower portion 53 supports the lower end of the protruding portion 20 of the locking device 12; and the side portion 52 connects the upper portion 51 and the lower portion 53.

Description

Locking device holding tool and position adjustment method of balance wheel device

The invention relates to a fixing device holding tool and a position adjustment method of a balance wheel device.

Conventionally, a balance wheel device and a lift provided with a locking device are known. The balance is arranged inside the frame of the balance device. On the balance wheel, the cage of the elevator is wound and the balance cable installed on the counterweight. The locking device prevents the balance device from rising rapidly. Examples of the balance device and the locking device are described in Patent Document 1 below.

[Leading Patent Literature] [Patent Literature]

[Patent Document 1] Japanese Unexamined Patent Publication No. 8-67454

When the balance device is lowered due to elongation of the balance cable, etc., it is necessary to lift the balance device. If the locking device operates when the balance device is lifted, returning becomes difficult. In order to adjust the position of the balance device while avoiding the action of the locking device, a long working time or a plurality of operators are required.

The present invention was developed in order to solve the above-mentioned problems, and an object thereof is to provide a locking device holding tool and a method for adjusting the position of a balance device, which can prevent the locking device from malfunctioning.

The locking device holding tool of the present invention is a holding tool for holding the relative position of the locking device to the balance wheel device of the elevator, and includes: an upper part, which is fixed on the bolt mounting part of the frame body of the balance device The lower part supports the lower end of the protruding part of the locking device; and the side part connects the upper part and the lower part.

The method for adjusting the position of the balance wheel device of the present invention includes: a lifting step of lifting the lock device to an upper end of a protruding portion of the lock device of the elevator and to a frame body fixed to the balance device. The lower end of the adjusting bolt mounted on the bolt mounting portion is in contact; the mounting step is to install the locking device holding tool to support the upper portion by the upper surface of the bolt mounting portion, and the lower end of the lower supporting protrusion connected to the upper portion by the side portion; , The cage is moved to the height missed by the counterweight; and the lifting step is to lift the balance wheel device by locking the balance cable installed on the counterweight.

The upper part of the holding device holding tool of the present invention is supported by the upper surface of the bolt mounting part fixed to the frame body of the balance device. The lower portion supports the lower end of the protruding portion of the locking device. The side part connects the upper part with the lower part. Therefore, according to the present invention, it is possible to prevent the locking device from malfunctioning.

1‧‧‧ cage

2‧‧‧ counterweight

3‧‧‧ Crane

4‧‧‧ sling

5‧‧‧Balance device

6‧‧‧Frame

7‧‧‧Balance

8‧‧‧ balance

9‧‧‧ floor

10‧‧‧ track

10a‧‧‧Track 1

10b‧‧‧Track 2

11‧‧‧Guide

12‧‧‧Locking device

12a‧‧‧The first locking device

12b‧‧‧Second locking device

13‧‧‧Bolt mounting section

14‧‧‧ additional tools

15‧‧‧Switch

16‧‧‧Adjustment bolt

17‧‧‧ hoof

18‧‧‧ spring

19‧‧‧ roller

20‧‧‧ protrusion

50‧‧‧ Locking device holding tool

51‧‧‧upper

52‧‧‧Side

53‧‧‧lower

54‧‧‧ gap

55‧‧‧Fixed parts

FIG. 1 is a configuration diagram showing an example of an elevator provided with a balance device.

Figure 2 is a side view of the balance device.

Figure 3 is a front view of the balance device.

Fig. 4 is a perspective view of a holding device holding tool of a first embodiment of the present invention.

Fig. 5 is a three-view diagram of the holding device holding tool of the first embodiment of the present invention.

Fig. 6 is a first diagram for explaining a method for installing a holding device holding tool of a locking device according to a first embodiment of the present invention.

Fig. 7 is a second diagram for explaining a method of mounting the holding device holding tool of the first embodiment of the present invention.

Fig. 8 is a third view for explaining a method of mounting the holding device holding tool of the locking device according to the first embodiment of the present invention.

Fig. 9 is a fourth diagram for explaining a method of installing the holding device holding tool of the first embodiment of the present invention.

The present invention will be described in detail with reference to the attached drawings. In each figure, the same or equivalent parts are denoted by the same symbols. Duplicate descriptions are simplified or omitted as appropriate.

First Embodiment

FIG. 1 is a configuration diagram showing an example of an elevator provided with a balance device. As shown in FIG. 1, the lift includes a cage 1, a counterweight 2, and a crane 3. The cage 1 and the counterweight 2 are arranged in a lifting path. The sling 4 is wound around the crane 3. Cage 1 and counterweight 2 are suspended by sling 4. The cage 1 and the counterweight 2 are driven up and down by a crane 3.

As shown in FIG. 1, the elevator includes a balance device 5. The balance wheel device 5 includes a frame body 6 and a balance wheel 7. The balance wheel 7 is provided inside the frame body 6. The balance cable 8 is wound around the balance wheel 7. One end of the balance cable 8 is attached to the cage 1. The one end of the balance cable 8 is, for example, mounted near the lower end of the side surface of the cage 1. The other end of the balance cable 8 is attached to the weight 2. The other end of the balance cable 8 is, for example, mounted near the lower end of the side surface of the weight 2. The rail 10 is fixed vertically to the floor surface 9 in the hoistway. The balance device 5 is movable up and down along the rail 10.

Figure 2 is a side view of the balance device. As shown in FIG. 2, the track 10 includes a first track 10 a and a second track 10 b. The second rail 10b faces the first rail 10a via the balance device 5. The balance device 5 includes a plurality of guide portions 11. The guide portion 11 is fixed to the frame body 6. The guide portion 11 is movable to the first rail 10a or the second rail 10b. The frame body 6 moves up and down along the rail 10 via the guide portion 11. Hereinafter, among the outer surfaces of the housing 6, a surface facing the first rail 10a is referred to as "front", and a surface facing the second rail 10b is referred to as "back".

As shown in FIG. 2, the locking device 12 is mounted on the rail 10, and the first locking device 12 a is mounted on the first rail 10 a. The second locking device 12b is attached to the second rail 10b. The second locking device 12b is mounted at the same height as the first locking device 12a.

Figure 3 is a front view of the balance device. Fig. 3 shows the balance device 5 and the first locking device 12a as viewed from the first rail 10a side shown in Fig. 2.

As shown in FIG. 3, the bolt mounting portion 13, the additional tool 14, and the switch 15 are provided on the front surface of the housing 6. The bolt mounting portion 13 is, for example, The vertical portion is fixed to the horizontal portion of the L-shaped member on the front surface of the frame body 6. Two bolt mounting portions 13 are provided on the front surface of the housing 6. The two ring bolt attachment portions 13 are arranged, for example, bilaterally symmetrically centered on the first rail 10a as viewed from the front side. The adjustment bolt 16 is attached to each bolt attachment portion 13. That is, two adjustment bolts 16 are provided on the front surface of the housing 6. The adjustment bolt 16 is movable in the up-down direction with respect to the bolt mounting portion 13 by turning. The additional tool 14 is provided at a position lower than the bolt mounting portion 13. The additional tool 14 is, for example, disposed on the right side of the first rail 10 a when viewed from the front side. The switch 15 is provided at a position lower than the bolt mounting portion 13 and higher than the additional tool 14. The switch 15 is arranged, for example, on the left side of the first rail 10 a when viewed from the front side.

In addition, two bolt attachment portions 13, an additional tool 14, a switch 15, and an adjustment bolt 16 attached to the bolt attachment portion 13 are also provided on the back of the frame body 6 (not shown in FIG. 3). Among them, the switch 15 on the back of the housing 6 is provided at a higher position than the switch 15 on the front of the housing 6. The rear surface of the frame body 6 is formed in the same manner as the front surface except that the switch 15 is provided. Hereinafter, the switch 15 on the front side of the housing 6 is referred to as a "security SW". The switch 15 on the back of the housing 6 is called "forecast SW".

As shown in FIG. 3, the first locking device 12 a includes a shoe 17, a spring 18, a roller 19, and a protrusion 20. The hoof 17 and the spring 18 are arranged, for example, on the right side when viewed from the front side than the first rail 10a. The hoof 17 is pressed against the first rail 10a by the spring 18 from the right side. The first locking device 12a is supported by the first rail 10a by a frictional force acting between the hoof 17 and the first rail 10a. Therefore, the first locking device 12a can move the first rail 10a by applying a force in the vertical direction. The roller 19 is provided at a position lower than the hoof 17. Roller 19 is arranged, for example When viewed from the front side, it is further to the right than the first rail 10a. That is, the roller 19 is disposed on the same side as the hoof 17 and the additional tool 14 with respect to the first rail 10a. The protruding portion 20 is formed, for example, by protruding from the upper end portion of the first locking device 12 a to the left. That is, the protruding portion 20 is disposed on the same side as the switch 15 with respect to the first rail 10 a. In the left-right direction, the protruding portion 20 is shorter than the bolt mounting portion 13. In the left-right direction, the left end of the left bolt mounting portion 13 is positioned more to the left than the left end of the protruding portion 20.

The second locking device 12b (not shown in FIG. 3) is also formed in the same manner as the first locking device 12a. The second locking device 12b is movable to the second rail 10b by applying a force in the vertical direction.

When the balance device 5 is gradually lowered, the lower end of the adjusting bolt 16 is in contact with the locking device 12. At this time, the lower end of the right adjusting bolt 16 is in contact with the upper end of the locking device 12. The lower end of the left adjusting bolt 16 is in contact with the upper end of the protruding portion 20. When the weight of the balance device 5 is applied to the lock device 12 via the adjustment bolt 16, the lock device 12 moves downward toward the first rail 10 a. That is, the locking device 12 is lowered together with the balance device 5 when the balance device 5 is lowered.

On the other hand, when the balance device 5 is raised, the locking device 12 does not move. When the balance device 5 is gradually raised, the switch 15 comes into contact with the lower end of the protruding portion 20. That is, when the balance device 5 is gradually raised, the switch 15 is turned on by contact with the protruding portion 20. Since the forecast SW in the switch 15 is located at a higher position than the safety SW, when the balance device 5 rises, the forecast SW first turns on, and then the safety SW turns on. When it is predicted that the SW becomes conductive, for example, the elevator control device will detect that the balance device 5 has been raised. When the safety SW is turned on, the elevator system is turned off. After the switch 15 is turned on and the balance device 5 is raised further, the roller 19 bites into the additional tool 14. When the roller 19 bites into the additional tool 14, the balance device 5 is prevented from rising.

When the balance device 5 is lowered due to elongation of the balance cable 8 or the like, a position adjustment operation is performed in order to raise the balance device 5. In the position adjustment operation of the balance device 5, the operator carried on the cage 1 locks the balance cable 8 on the side of the counterweight 2 and lifts the balance device 5. In the past, in order to lift the balance device 5 while avoiding the action of the locking device 12, for example, not only an operator who needs to lock the balance cable 8, but also needs to manually lock the locking device 12 on the floor surface 9 in the elevator Ascent of other operators. In addition, in the past, an operator who performs a position adjustment operation alone has, for example, moved the floor surface 9 in the hoistway every time the balance cable 8 is slightly locked, and confirms the state of the locking device 12.

Fig. 4 is a perspective view of a holding device holding tool of the first embodiment. As shown in FIG. 4, the locking device holding tool 50 includes an upper portion 51, a side portion 52, and a lower portion 53. A U-shaped notch portion 54 is formed at one end of the upper portion 51. The other end of the upper portion 51 is continuous to one end of the side portion 52 perpendicularly. The other end of the side portion 52 is continuous to one end of the lower portion 53 perpendicularly. That is, the side portion 52 connects the other end of the upper portion 51 and one end of the lower portion 53. The upper surface of the lower portion 53 faces the lower surface of the upper portion 51 in parallel. The upper part 51, the side part 52, and the lower part 53 are integrally formed, for example. The locking device holding tool 50 is formed, for example, by bending a sheet-shaped member twice. The locking device holding tool 50 is made of, for example, a material such as iron.

Fig. 5 is a three-view view of the holding device holding tool of the first embodiment. Hereinafter, expediently, the length in the left-right direction when the side portion 52 faces the left is called "width", the length in the front-rear direction is called "depth", and the length in the up-down direction is called "height".

As shown in FIG. 5, the upper portion 51, the side portion 52, and the lower portion 53 are formed to have the same depth. The upper portion 51, the side portions 52, and the lower portion 53 are formed to have the same thickness. The lower portion 53 is formed to have a shorter width from one end to the other end than the width from one end to the other end of the upper portion 51. The notch portion 54 is formed in front of a center deeper than the upper portion 51.

The depth of the upper part 51, the side part 52, and the lower part 53 is 50 mm, for example. The thickness of the upper part 51, the side part 52, and the lower part 53 is 5 mm, for example. The width under the upper portion 51 is, for example, 40 mm. The width of the upper surface of the lower portion 53 is, for example, 30 mm. The width of the cutout portion 54 is, for example, 20 mm. The left end portion of the cutout portion 54 is formed in a semicircular shape with a radius of 6 mm, for example. The depth of the notch portion 54 is, for example, 12 mm. The length from the front end portion of the notch portion 54 to the inner end portion of the upper portion 51 is, for example, 10 mm. The length from the inner end portion of the notch portion 54 to the inner end portion of the upper portion 51 is, for example, 28 mm. That is, the notch portion 54 is formed in the front-rear direction of the upper portion 51 and is formed in a range from a position of 10 mm on the front side to a position of 28 mm on the inner side, for example.

Fig. 6 is a first diagram for explaining a method of mounting the holding device holding tool of the first embodiment. Fig. 7 is a second view for explaining a method of mounting the holding device holding tool of the first embodiment. Fig. 8 is a third view for explaining a method of mounting the holding device holding tool of the first embodiment. 6 and 7 are enlarged views of the balance device 5 and the first locking device 12a as viewed from the front side. Fig. 8 is a perspective view showing a state where the locking device holding tool 50 is mounted on the first locking device 12a. The switch 15 shown in FIGS. 6, 7 and 8 is a safety SW. Hereinafter, mounting of the locking device holding tool 50 of the first locking device 12a will be described with reference to FIGS. 6, 7, and 8. method.

First, the first locking device 12 a is raised until the upper end of the protruding portion 20 comes into contact with the lower end of the adjustment bolt 16. Next, as shown in FIG. 6, the locking device holding tool 50 is moved from left to right in a state where the side portion 52 is directed to the left. At this time, as shown in FIG. 7, the locking device holding tool 50 is arranged so that the left bolt mounting portion 13 and the protruding portion 20 are fitted between the upper portion 51 and the lower portion 53. At this time, the locking device holding tool 50 is arranged so that the adjustment bolt 16 passes through the cutout portion 54. That is, the lock device holding tool 50 is provided to be inserted from the side of the first lock device 12a. Then, as shown in FIG. 8, the upper portion 51 is fixed to the left bolt mounting portion 13 by the fixing member 55 using the adjusting bolt 16. The fixture 55 is, for example, a nut, a washer, and a washer. In addition, as shown by the dotted line in FIG. 6, the locking device holding tool 50 does not interfere with the housing of the safety SW when it is installed.

The distance from the lower end of the protruding portion 20 in a state in contact with the adjustment bolt 16 to the upper surface of the bolt mounting portion 13 on the left is adjusted by rotating the adjustment bolt 16. This distance is adjusted below the height of the inside of the side portion 52 before the locking device holding tool 50 is attached. The height inside the side portion 52 is the height from the upper surface of the lower portion 53 to the lower surface of the upper portion 51.

As shown in FIG. 8, when the locking device holding tool 50 is mounted, the upper portion 51 is supported by the upper surface of the bolt mounting portion 13 on the left side. The lower portion 53 supports a lower end of the protruding portion 20. The side portion 52 connects the upper portion 51 and the lower portion 53. In this way, the first locking device 12 a is connected to the front side of the balance device 5 by the locking device holding tool 50.

The upper part 51 and the lower part 53 are, for example, formed to be attached to a bolt in depth. The lengths of the portions 13 and the protruding portions 20 in the front-rear direction are the same. The upper portion 51 is, for example, in a range not in contact with the vertical portion of the L-shaped member having the bolt mounting portion 13, and the depth of the portion formed inside is longer than the cutout portion 54. The notch portion 54 is formed in the front-rear direction of the upper portion 51 and is formed at a position where the adjusting bolt 16 passes through in a state where the locking device holding tool 50 is mounted. The cutout portion 54 is formed to have a depth that is equal to or greater than the thickness of the adjustment bolt 16.

The upper portion 51 is formed to have a width that matches the length of the bolt mounting portion 13 in the left-right direction, for example. The lower portion 53 is formed to have a width that matches the length of the protruding portion 20 in the left-right direction, for example. The lower portion 53 is formed to have a shorter width than the upper portion 51. The width of the upper portion 51 and the width of the lower portion 53 are set, for example, in a state in which the locking device holding tool 50 is mounted, and the lengths of the left side of the side portion 52 and the housing of the switch 15 do not interfere. The notch portion 54 is formed, for example, in a state where the locking device holding tool 50 is mounted, and the central axis of the adjustment bolt 16 passes through the center of the left end portion of the semicircle.

Fig. 9 is a fourth view for explaining a method of mounting the holding device holding tool of the first embodiment. Fig. 9 is an enlarged view of the balance device 5 and the second locking device 12b as viewed from the back side. The switch 15 shown in Fig. 9 is a forecast SW.

As shown in FIG. 9, the forecast SW is set at a height close to the lower end of the adjustment bolt 16. The locking device holding tool 50 interferes with the casing of the forecast SW when the second locking device 12b is installed. Therefore, the mounting of the locking device holding tool 50 of the second locking device 12b is performed, for example, in a state where the casing of the SW is temporarily moved. It is predicted that the SW is returned to the original position after the locking device holding tool 50 is installed, for example. For the second locking device 12b The method of mounting the locking device holding tool 50 is the same as that for the first locking device 12a except that the operation to avoid interference with the forecast SW is performed. In this manner, as shown in FIG. 9, the second locking device 12 b is connected to the back side of the balance device 5 by the locking device holding tool 50.

The position adjustment method of the balance device using the locking device holding tool 50 includes, for example, a first step, a second step, a third step, and a fourth step. In the first step, the locking device 12 is lifted to the upper end of the protruding portion 20 of the locking device 12 of the elevator and the adjusting bolts mounted on the bolt mounting portions 13 fixed to the frame 6 of the balance device 5. The lower end of 16 touches. In the second step, the locking device holding tool 50 is mounted so that the upper portion 51 is supported by the upper surface of the bolt mounting portion 13, and the lower portion 53 connected to the upper portion 51 is supported by the side portion 52 to support the lower end of the protruding portion 20. In the second step, one locking device holding tool 50 is attached to each of the first locking device 12a and the second locking device 12b. In the third step, board the cage 1 and move the cage 1 to a height missed by the weight 2. The height missed from the weight 2 is, for example, the height at which the upper end of the cage 1 and the lower end of the weight 2 are aligned. In step 4, the cage 1 is mounted on the cage 1 and the balance cable 8 mounted on the counterweight 2 is locked, thereby lifting the balance device 5.

In the first embodiment, the upper portion 51 of the locking device holding tool 50 is supported by the upper surface of the bolt mounting portion 13 fixed to the frame 6 of the balance device 5. The lower portion 53 supports the lower end of the protruding portion 20 of the locking device 12. The side portion 52 is formed to connect the upper portion 51 and the lower portion 53. By using the lock device holding tool 50 to connect the balance device 5 and the lock device 12, the lock device 12 can be raised with the rise of the balance device 5. That is, the locking device holding tool 50 is a holding tool that holds the relative position of the locking device 12 to the balance wheel device 5 of the elevator. According to the present invention, it is possible to prevent the locking device 12 from malfunctioning when the balance device 5 is lifted. With this, for example, in the case of performing the position adjustment work for two people in the past when it was performed by two people, it can be completed in approximately one hour even in the case of one person. As a result, the efficiency of the position adjustment operation of the balance device 5 can be improved.

In the first embodiment, a switch 15 is provided on the surface of the frame body 6 to which the bolt mounting portion 13 is fixed. The lower end of the protruding portion 20 is a portion that comes into contact with the switch 15 from above when the balance device 5 moves the locking device 12 upward. A notch portion 54 is formed in the upper portion 51 of the locking device holding tool 50 to pass through the adjusting bolt 16 attached to the bolt mounting portion 13. The upper portion 51 is in a state where the adjusting bolt 16 passes through the notch portion 54, and is fixed to the bolt mounting portion 13 by the adjusting bolt 16 and the fixing member 55. That is, according to the present invention, the lock device 12 and the balance device 5 are connected using the original configuration of the balance device 5 and the lock device 12. Therefore, according to the present invention, with a simpler structure, a locking device holding tool 50 that can improve the efficiency of the position adjustment operation of the balance device can be realized.

In the first embodiment, the locking device holding tool 50 is integrally formed of, for example, one member. The locking device holding tool 50 is provided to be inserted from the side of the locking device 12 when it is mounted. Therefore, according to the present invention, a locking device holding tool 50 with high strength and easy installation can be realized.

In the first embodiment, the upper portion 51 and the lower portion 53 are formed, for example, to have a depth that matches the lengths of the bolt mounting portion 13 and the protruding portion 20 in the front-rear direction. The upper portion 51 is formed to have a width that matches the length of the bolt mounting portion 13 in the left-right direction, for example. The lower portion 53 is formed to have a width that matches the length of the protruding portion 20 in the left-right direction, for example. That is, the locking device holding tool 50 is formed so as to have as large an area as possible in contact with the bolt mounting portion 13 and the protruding portion 20. Therefore, if according to the present invention, A high-strength locking device holding tool 50 can be realized.

The locking device holding tool 50 of the present invention is not limited to the one described in the first embodiment. The locking device holding tool 50 may be, for example, the width of the upper portion 51 and the width of the lower portion 53. The locking device holding tool 50 may be, for example, one in which the width of the upper portion 51 is shorter than the width of the lower portion 53. The locking device holding tool 50 may be, for example, a different depth between the upper portion 51 and the lower portion 53. The locking device holding tool 50 may be, for example, one in which the cutout portion 54 is not formed. Even in these cases, if the upper portion 51 is supported by the bolt mounting portion 13 and the lower portion 53 supports the protruding portion 20, by using the locking device to hold the tool 50, the balance device 5 can be raised and locked. The device 12 rises.

Claims (3)

The utility model relates to a holding device holding tool, which is a holding tool for holding the relative position of the locking device to the balance wheel device of an elevator. The lower part supports the lower end of the protruding part of the locking device; and the side part connects the upper part and the lower part; the upper part, the lower part, and the side part are integrally formed. For example, the locking device holding tool of the scope of patent application, wherein a switch is provided on the surface of the frame to which the bolt mounting portion is fixed; the lower end of the protruding portion is tied to the balance device to the locking device. In the case of upward movement, the part in contact with the switch from above; the upper part is formed with a notch portion through which an adjustment bolt mounted on the bolt mounting portion passes; the upper part is in a state where the adjustment bolt passes through the notch , Is fixed to the bolt mounting portion by the adjusting bolt and the fixing member. A method for adjusting the position of a balance wheel device includes a lifting step of lifting the lock device to an upper end of a protruding portion of a lock device of an elevator and bolt mounting on a frame body fixed to the balance device. The lower end of the adjusting bolt installed on the part contacts; the installation step is to install the locking device holding tool to support the upper part by the upper surface of the bolt mounting part, and support the lower end of the protruding part by the lower part connected to the upper part; moving step , The cage is moved to a height missed by the counterweight; and the lifting step is to lift the balance wheel device by locking a balance cable installed on the counterweight.