TW201641410A - Lockdown device holding tool and method for adjusting position of compensation device - Google Patents

Abstract

The present invention has an object to provide a lockdown device holding tool and a method for adjusting a position of a compensation device capable of preventing accidental actuation of a lockdown device. A lockdown device holding tool 50 according to the present invention is a holding tool for holding a position of a lockdown device 12 relative to a compensation device 5 of an elevator, and includes: an upper part 51 supported on an upper surface of a bolt mounting portion 13 secured to a casing 6 of the compensation device 5; a lower part 53 that supports a lower end of a protrusion 20 included in the lockdown device 12; and a lateral part 52 that couples the upper part 51 and the lower part 53.

Description

Locking device holding tool and position adjusting method of balance device

The present invention relates to a locking device holding tool and a position adjusting method of the balance device.

In the past, a balance wheel device and a lift having a lock device have been known. The balance wheel is disposed inside the frame of the balance device. In the balance wheel, the cage of the winding elevator and the balance cable installed on the counterweight. The locking device prevents the balance device from rising rapidly. For example, the balance wheel device and the lock device are as described in Patent Document 1 below.

[Prior patent documents] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. Hei 8-67454

In the case where the balance device is lowered due to the elongation of the balance cable or the like, it is necessary to lift the balance device. If the locking device operates when the balance device is lifted, it becomes difficult to return. 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 workers are required.

The present invention has been made to solve the above problems, and an object of the invention is to provide a locking device holding tool and a position adjusting method for a balance device that can prevent a 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 device of the elevator, comprising: an upper portion which is fixed on the bolt mounting portion of the frame of the balance device Supported; the lower portion is a lower end of the protrusion of the support locking device; and the side portion is connected to the upper portion and the lower portion.

The position adjusting method of the balance device of the present invention comprises: a lifting step of lifting the locking device to the upper end of the protrusion of the locking device of the elevator and the frame fixed to the frame of 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 from the upper surface of the bolt mounting portion, and the lower end of the lower supporting protrusion portion connected by the side portion and the upper portion; , the cage is moved to the height missed by the counterweight; and the lifting step is to lift the balance device by locking the balance cable installed on the counterweight.

The upper portion of the locking device holding tool of the present invention is supported by the upper surface of the bolt mounting portion fixed to the frame of the balance device. The lower support lock has a lower end of the protrusion. The sides connect the upper and lower parts. Therefore, according to the present invention, it is possible to prevent the locking device from malfunctioning.

1‧‧‧cage

2‧‧‧weight

3‧‧‧ Crane

4‧‧‧ sling

5‧‧‧balance device

6‧‧‧ frame

7‧‧‧ balance wheel

8‧‧‧Balance

9‧‧‧Floor surface

10‧‧‧ Track

10a‧‧‧1 track

10b‧‧‧2nd track

11‧‧‧ Guidance Department

12‧‧‧Locking device

12a‧‧‧1st locking device

12b‧‧‧2nd locking device

13‧‧‧Bolt mounting department

14‧‧‧Additional tools

15‧‧‧ switch

16‧‧‧Adjusting bolts

17‧‧ ‧ hoof

18‧‧‧ Spring

19‧‧‧ Roll

20‧‧‧Protruding

50‧‧‧Locking device retention tool

51‧‧‧ upper

52‧‧‧ side

53‧‧‧ lower

54‧‧‧Gap section

55‧‧‧Fixed parts

Fig. 1 is a configuration diagram showing an example of an elevator including 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 locking device holding tool according to a first embodiment of the present invention.

Fig. 5 is a three-dimensional view of the lock device holding tool according to the first embodiment of the present invention.

Fig. 6 is a first view for explaining a method of attaching the lock device holding tool according to the first embodiment of the present invention.

Fig. 7 is a second view for explaining a method of attaching the lock device holding tool according to the first embodiment of the present invention.

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

Fig. 9 is a fourth view for explaining a method of attaching the lock device holding tool according to the first embodiment of the present invention.

The invention will be described in detail with reference to the accompanying drawings. In the respective drawings, the same symbols are attached to the same or corresponding parts. Repeated descriptions are simplified or omitted as appropriate.

First embodiment

Fig. 1 is a configuration diagram showing an example of an elevator including a balance device. As shown in Fig. 1, the elevator includes a cage 1, a counterweight 2, and a crane 3. The cage 1 and the counterweight 2 are disposed in the hoistway. The sling 4 is wound around the crane 3. The cage 1 and the counterweight 2 are suspended by the sling 4 . The cage 1 and the counterweight 2 are lifted and lowered by the crane 3.

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

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

As shown in Fig. 2, the lock device 12 is attached to the rail 10, and the first lock device 12a is attached to the first rail 10a. The second lock device 12b is attached to the second rail 10b. The second lock device 12b is attached to the same height as the first lock device 12a.

Figure 3 is a front view of the balance device. Fig. 3 shows the balance device 5 and the first lock device 12a as viewed from the side of the first rail 10a 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 casing 6. The bolt mounting portion 13 is, for example, at The vertical portion is fixed to the horizontal portion of the L-shaped member on the front side of the frame 6. On the front surface of the casing 6, two bolt mounting portions 13 are provided. The two ring plug attachment portions 13 are, for example, arranged to be bilaterally symmetrical about the first rail 10a as viewed from the front side. The adjusting bolt 16 is attached to each of the bolt mounting portions 13. That is, on the front surface of the casing 6, the adjusting bolts 16 are provided in two. The adjusting bolt 16 is movably moved to the bolt mounting portion 13 in the vertical direction. The additional tool 14 is disposed at a lower position than the bolt mounting portion 13. The additional tool 14 is disposed, for example, on the right side of the first rail 10a when viewed from the front side. The switch 15 is disposed at a position lower than the bolt mounting portion 13 and higher than the additional tool 14. The switch 15 is disposed, for example, on the left side of the first rail 10a when viewed from the front side.

Further, two bolt mounting portions 13, an additional tool 14, a switch 15, and an adjusting bolt 16 attached to the bolt attaching portion 13 are also provided on the back surface of the casing 6 not shown in FIG. Among them, the switch 15 on the back surface of the casing 6 is disposed at a position higher than the switch 15 on the front side of the casing 6. The back surface of the casing 6 is formed in the same manner as the front surface except for the position where the switch 15 is provided. Hereinafter, the switch 15 on the front side of the casing 6 will be referred to as "safety SW". Further, the switch 15 on the back surface of the casing 6 is referred to as "forecast SW".

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

Further, the second lock device 12b (not shown in Fig. 3) is formed in the same manner as the first lock device 12a. The second lock device 12b is movable to the second rail 10b by biasing in the vertical direction.

When the balance device 5 is gradually lowered, the lower end of the adjustment bolt 16 comes into contact with the lock device 12. At this time, the lower end of the adjustment bolt 16 on the right side is in contact with the upper end of the lock device 12. Further, the lower end of the adjustment bolt 16 on the left side is in contact with the upper end of the protrusion 20. When the weight of the balance device 5 acts on the lock device 12 via the adjustment bolt 16, the lock device 12 moves downward toward the first rail 10a. That is, the lock 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 projection 20. That is, when the balance device 5 is gradually raised, the switch 15 is turned on by coming into contact with the protrusion 20. Since the SW in the switch 15 is located at a position higher than the safety SW, when the balance device 5 is raised, the forecast SW becomes conductive first, and then the safety SW becomes conductive. In the case where the forecast SW becomes conductive, for example, the elevator control device or the like detects that the balance device 5 has risen. When the safety SW becomes conductive, the elevator is in the power OFF state. After the switch 15 becomes conductive, the roller 19 bites into the additional tool 14 when the balance device 5 is raised. When the roller 19 bites into the additional tool 14, the rise of the balance device 5 is prevented.

When the balance device 5 is lowered due to the elongation of the balance cable 8, or the like, the position adjustment operation is performed in order to raise the balance device 5. At the position adjustment work of the balance device 5, the operator mounted on the cage 1 locks the balance cable 8 on the side of the counterweight 2, and the balance device 5 is lifted. Conventionally, in order to lift the balance device 5 while avoiding the operation of the lock device 12, for example, it is not only necessary to lock the operator of the balance cable 8, but also to manually lock the lock device 12 on the floor surface 9 in the lift path. Other workers who are rising. Further, conventionally, the operator who performs the position adjustment operation by one person moves the floor surface 9 in the hoistway every time the lock cable 8 is slightly locked, and confirms the state of the lock device 12.

Fig. 4 is a perspective view of the lock 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 perpendicular to one end of the side portion 52. The other end system of the side portion 52 is continuous perpendicular to one end of the lower portion 53. 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 is opposed to the lower surface of the upper portion 51 in parallel. The upper portion 51, the side portion 52, and the lower portion 53 are integrally formed, for example. The locking device holding tool 50 is formed, for example, by bending one sheet-like member twice. The locking device holding tool 50 is formed of, for example, a material such as iron.

Fig. 5 is a three-view view of the locking device holding tool of the first embodiment. Hereinafter, the length in the left-right direction in the case where the side portion 52 faces the left side is referred to as "width", the length in the front-rear direction is referred to as "depth", and the length in the vertical direction is referred to as "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. Further, the upper portion 51, the side portion 52, and the lower portion 53 are formed to have the same thickness. The lower portion 53 is formed to have a width from one end to the other end that is shorter than a width from one end to the other end of the upper portion 51. The notch portion 54 is formed in front of the center of the depth of the upper portion 51.

The depth of the upper portion 51, the side portion 52, and the lower portion 53 is, for example, 50 mm. The thickness of the upper portion 51, the side portion 52, and the lower portion 53 is, for example, 5 mm. The width below the upper portion 51 is, for example, 40 mm. The width of the upper portion of the lower portion 53 is, for example, 30 mm. The width of the notch portion 54 is, for example, 20 mm. The left end portion of the notch portion 54 is formed, for example, in a semicircular shape having a radius of 6 mm. 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. In other words, the notch portion 54 is formed in the front-rear direction of the upper portion 51, for example, in a range from a position of 10 mm on the front side to a position of 28 mm on the inner side.

Fig. 6 is a first view for explaining a method of attaching the lock device holding tool of the first embodiment. Fig. 7 is a second view for explaining a method of attaching the lock device holding tool of the first embodiment. Fig. 8 is a third view for explaining a method of attaching the lock device holding tool of the first embodiment. 6 and 7 are enlarged views of the balance device 5 and the first lock device 12a as viewed from the front side. Fig. 8 is a perspective view showing a state in which the lock holding device 50 is attached to the first lock device 12a. The switch 15 shown in Fig. 6, Fig. 7, and Fig. 8 is a safety SW. Hereinafter, the 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 lock device 12a is raised to the upper end of the protrusion 20 to come 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 while the side portion 52 is directed to the left side. At this time, as shown in FIG. 7, the lock fixing tool 50 is disposed such that the bolt mounting portion 13 and the projection 20 on the left side are fitted between the upper portion 51 and the lower portion 53. Further, at this time, the locking device holding tool 50 is disposed such that the adjusting bolt 16 passes through the notch portion 54. That is, the locking device holding tool 50 is provided to be inserted from the side of the first locking 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 by the adjusting bolt 16. The fixing member 55 is, for example, a nut, a gasket, a gasket, or the like. Further, as shown by the broken line in Fig. 6, the locking device holding tool 50 does not interfere with the outer casing of the safety SW when it is mounted.

The distance from the lower end of the projection 20 in a state in contact with the adjustment bolt 16 to the upper surface of the bolt attachment portion 13 on the left side is adjusted by rotating the adjustment bolt 16. This distance is adjusted to be below the height of the inside of the side portion 52 before the locking device holding tool 50 is installed. The height of the inner side of the side portion 52 is 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 the lower end of the protrusion 20. The side portion 52 connects the upper portion 51 and the lower portion 53. In this manner, the first locking device 12a is coupled to the front side of the balance device 5 by the locking device holding tool 50.

The upper portion 51 and the lower portion 53 are formed, for example, deep into the bolt mounting The lengths of the portion 13 and the protruding portion 20 in the front-rear direction coincide. The upper portion 51 is, for example, in a range that does not contact the vertical portion of the L-shaped member having the bolt mounting portion 13, and the depth of the portion formed in the inner side is longer than the notch portion 54. The notch portion 54 is formed in a front-rear direction of the upper portion 51, and is formed at a position where the adjusting bolt 16 passes when the locking device holding tool 50 is mounted. The notch portion 54 is formed so that the depth becomes the thickness of the adjustment bolt 16 or more.

The upper portion 51 is formed, for example, such that the width thereof coincides with the length of the bolt mounting portion 13 in the left-right direction. The lower portion 53 is formed, for example, such that the width thereof coincides with the length of the protruding portion 20 in the left-right direction. 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 to a length in which the left side of the side portion 52 does not interfere with the outer casing of the switch 15, for example, in a state in which the locking device holding tool 50 is mounted. The notch portion 54 is formed such that the central axis of the adjusting bolt 16 passes through the center of the left end portion of the semicircular shape, for example, in a state where the locking device holding tool 50 is mounted.

Fig. 9 is a fourth view for explaining a method of attaching the lock device holding tool of the first embodiment. Fig. 9 is an enlarged view of the balance device 5 and the second lock 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 outer casing of the forecast SW when the second locking device 12b is mounted. Therefore, the attachment of the locking device holding tool 50 to the second locking device 12b is performed, for example, in a state in which the outer casing of the forecast SW is temporarily moved. The forecast SW is returned to the original position, for example, after the locking device holding tool 50 is mounted. For the second locking device 12b The mounting method of the locking device holding tool 50 is the same as that for the first locking device 12a except for the operation for avoiding interference with the forecast SW. In this manner, the second locking device 12b is coupled to the back side of the balance device 5 by the locking device holding tool 50 as shown in FIG.

The position adjustment method of the balance device using the lock device holding tool 50 includes, for example, the first step, the second step, the third step, and the fourth step. In the first step, the lock device 12 is lifted up to the upper end of the projection 20 of the lock device 12 of the elevator and the adjustment bolt mounted on the bolt mounting portion 13 of the frame 6 fixed to the balance device 5. The lower end of the 16 is in contact. In the second step, the locking device holding tool 50 is mounted to support the upper portion 51 by the upper surface of the bolt mounting portion 13, and the lower portion 53 that supports 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, the cage 1 is taken and the cage 1 is moved to a height missed by the counterweight 2. The height missed by the counterweight 2 is, for example, the height at which the upper end of the cage 1 and the lower end of the counterweight 2 are arranged. In the fourth step, the cage 1 is mounted and the balance cable 8 attached to the counterweight 2 is locked, whereby the balance device 5 is hoisted.

In the first embodiment, the upper portion 51 of the lock device holding tool 50 is supported by the upper surface of the bolt mounting portion 13 of the frame body 6 of the balance device 5. The lower portion 53 supports the lower end of the projection 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 locking device holding tool 50 to connect the balance device 5 and the locking device 12, the locking device 12 can be raised as the balance device 5 rises. 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 device 5 of the elevator. According to the present invention, when the balance device 5 is hoisted, the locking device 12 can be prevented from malfunctioning. Therefore, for example, it takes two hours of position adjustment work in the case of two people in the past, and it can be completed in about one hour even if it is performed by one person. As a result, the efficiency of the position adjustment work of the balance device 5 can be improved.

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

In the first embodiment, the lock device holding tool 50 is integrally formed of, for example, one member. Further, the locking device holding tool 50 is disposed to be inserted from the side of the locking device 12 when it is mounted. Therefore, according to the present invention, the locking device holding tool 50 having 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, such that the depth matches the length of the bolt mounting portion 13 and the projection portion 20 in the front-rear direction. The upper portion 51 is formed, for example, such that the width thereof coincides with the length of the bolt mounting portion 13 in the left-right direction. The lower portion 53 is formed, for example, such that the width thereof coincides with the length of the protruding portion 20 in the left-right direction. That is, the locking device holding tool 50 is formed to be as large as possible in contact with the bolt mounting portion 13 and the protruding portion 20. Therefore, according to the present invention, A high strength locking device holding tool 50 can be realized.

The lock device holding tool 50 of the present invention is not limited to those described in the first embodiment. The locking device holding tool 50 may be, for example, the width of the upper portion 51 being the same as the width of the lower portion 53. It is also possible that the locking device holding tool 50 is, for example, such that the width of the upper portion 51 is shorter than the width of the lower portion 53. It is also possible that the locking device holding tool 50 is such that the depth of the upper portion 51 and the depth of the lower portion 53 are different. The locking device holding tool 50 may be, for example, a not-formed portion 54. Even in these cases, if the upper portion 51 is supported by the bolt mounting portion 13 and the lower portion 53 supports the shape of the protruding portion 20, by holding the tool 50 using the locking device, the lifting of the balance device 5 can be accompanied by locking. Device 12 rises.

10a‧‧‧1 track

12a‧‧‧1st locking device

13‧‧‧Bolt mounting department

14‧‧‧Additional tools

15‧‧‧ switch

16‧‧‧Adjusting bolts

17‧‧ ‧ hoof

18‧‧‧ Spring

19‧‧‧ Roll

20‧‧‧Protruding

50‧‧‧Locking device retention tool

Claims (3)

A locking device holding tool is a holding tool for holding a relative position of a locking device to a balance device of an elevator, comprising: an upper portion which is fixed on a bolt mounting portion of a frame body of the balance device Supported; a lower portion supporting a lower end of the protrusion of the locking device; and a side portion connecting the upper portion and the lower portion. The lock device holding tool according to claim 1, wherein a surface of the frame is fixed in a face of the frame, and a switch is disposed; a lower end of the protrusion is attached to the balance device a portion that is in contact with the switch when the ascending movement is performed; a notch portion through which the adjusting bolt attached to the bolt mounting portion passes is formed in the upper portion; the upper portion is in a state in which the adjusting bolt passes through the notch portion The adjusting bolt and the fixing member are fixed to the bolt mounting portion. A method for adjusting a position of a balance device comprises: a lifting step of lifting the locking device to an upper end of a protrusion of the locking device of the elevator and a bolt mounting on a frame fixed to the balance device The lower end of the adjusting bolt installed in the part is in contact; the mounting step is to install the locking device holding tool to support the upper portion from the upper surface of the bolt mounting portion, and the lower portion connected to the upper portion supports the lower end of the protruding portion; Lifting the cage to a height missed by the counterweight; and lifting the step by lifting the balance cable attached to the counterweight Balance device.