JP7010760B2 - How to install the elevator balancing weight device and the elevator balancing weight device - Google Patents

Description

The present invention relates to an elevator balancing weight device and an elevator balancing weight device mounting method, and is suitable for application to, for example, a balancing weight device provided with a guide device that engages with a guide rail installed in a hoistway. Is.

Conventionally, a device (hereinafter referred to as a guide device) for guiding a balanced weight device of an elevator that moves up and down between guide rails extending up and down the hoistway so as not to come off the guide rail is attached.

In recent years, an elevator balancing weight device capable of preventing the guide device from coming off the guide rail due to deformation of the guide rail due to shaking of an earthquake or the like has been disclosed (see Patent Document 1).

Japanese Patent No. 5855254

The strength standard for earthquake resistance has become stricter, and it is necessary to replace the balanced weight device, which cannot be certified with the structure of the conventional balanced weight device of the elevator, with a balanced weight device that can certify the material.

Generally, when the balance weight device of the elevator is installed on site, the guide device hits the guide rail, so it is necessary to remove the guide device from the balance weight device. When installing the guide device, it takes time to adjust the gap with the guide rail, but since the work time at the site is fixed, a structure capable of shortening the work time is required.

For example, in the structure of the balance weight device of the elevator described in Patent Document 1, it is possible to prevent the frame body from being deformed or the guide device from being displaced due to the deformation of the guide rail, while preventing the guide rail from coming off. When attaching to the guide rail, workability deteriorates.

The present invention has been made in consideration of the above points, and an object of the present invention is to propose a balance weighting device for an elevator that can shorten the working time required for mounting on a guide rail.

In order to solve such a problem, in the present invention, a frame body having a pair of vertical frames and a pair of horizontal frames rotatably connected to the vertical frame, and the horizontal frame provided on the vertical frame. A stopper that limits the rotation of the frame body and a guide device that is provided on the frame body and engages with a guide rail installed in the hoistway are provided.

Further, in the present invention, a frame body having a pair of vertical frames and a pair of horizontal frames rotatably connected to the vertical frame is provided on the vertical frame, and the horizontal frames come into contact with each other. Installation for mounting an elevator balance weight device including a stopper that limits the rotation of the frame body, and a guide device that is provided on the frame body and engages with a guide rail installed in a hoistway. In the method, the guide device is guided to the first step of deforming the frame body by rotating the horizontal frame to the stopper with respect to the vertical frame, and while restoring the frame body. A second step of engaging with the rail was provided.

According to the above configuration, for example, since it is not necessary to remove the guide device from the frame body, the working time required for mounting on the guide rail can be shortened.

According to the present invention, it is possible to realize a balance weight device for an elevator with high maintainability.

It is a figure which shows an example of the structure which concerns on the elevator by 1st Embodiment. It is a schematic diagram which shows the state which looked at the balance weight device of the elevator before replacement by 1st Embodiment from the front side. It is a schematic diagram which shows the state which the balance weight device of the elevator used for exchange by 1st Embodiment is seen from the front side. It is a figure which shows an example of the outer stopper mechanism by 1st Embodiment. It is a figure which shows an example of the inner stopper mechanism by 1st Embodiment. It is a schematic diagram which shows the state of the installation work of the balance weight device of the elevator by 1st Embodiment.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

(1) First Embodiment In FIG. 1, 1 shows an elevator balancing weight device according to the first embodiment.

The balance weight device 1 of the elevator is a device that reduces the traveling load of the car 2 for accommodating passengers and carrying them to a desired floor, and is a box-shaped moving body that moves up and down in the hoistway. The balance weight device 1 of the elevator satisfies the strength standard for earthquake resistance.

As shown in FIG. 1, the elevator according to the present embodiment includes an elevator balancing weight device 1, a car 2, a main rope 3 connecting the elevator balancing weight device 1 and the car 2, and a main rope 3. A hoisting machine 4 on which a rope 3 is wound to move a main rope 3 and a deflecting wheel 5 for preventing contact between an elevator balancing weight device 1 and a car 2 are provided.

Further, in the hoistway, a shock absorber 6 for avoiding a collision between the elevator balance weight device 1 and the floor surface of the hoistway, and a vertically extended balance weight side that guides the elevator balance weight device 1 to move up and down. A guide rail 7 and a car-side guide rail 8 extending vertically to guide the ascent and descent of the car 2 are installed.

FIG. 2 is a schematic view showing a state in which the balance weight device 10 of the conventional (before replacement) elevator is viewed from the front side.

The elevator balancing weight device 10 includes two vertical frames 11, an upper frame 12, a lower frame 13, a suspension plate 14 for fastening the main rope 3, and a base 15 that receives contact with the shock absorber 6. A reinforcing material 16 that reduces the spread between the two vertical frames 11, a weight 17 that adjusts the weight, and a guide device 18 that guides the elevator's balancing weight device 10 so that it does not come off from the balancing weight side guide rail 7. And have.

Further, the vertical frame 11 and the upper frame 12 are fixed to one place by two fastening bolts 19, and the vertical frame 11 and the lower frame 13 are fixed to one place by two fastening bolts 19.

(How to remove the balance weight device 10 of the elevator from the balance weight side guide rail 7)
The main procedure (example) for removing the balance weight device 10 of the elevator is as follows.
(Procedure 1) Remove the suspension plate 14 from the main rope 3 (Procedure 2) Remove the reinforcing material 16 from the vertical frame 11 (Procedure 3) Remove the upper frame 12 from the vertical frame 11 (Procedure 4) Remove the weight 17 (Procedure 5) ) Remove the guide device 18 (vertical frame 11 and lower frame 13) from the balance weight side guide rail 7.

FIG. 3 is a diagram (conceptual diagram seen from the front side) showing an example of the configuration according to the balance weight device 1 of the elevator (used for replacement) according to the present embodiment. Since the back surface (back surface) side of the balance weight device 1 of the elevator is the same as the front side, the illustration and description thereof will be omitted.

The balance weight device 1 of the elevator includes a frame body including two vertical frames 21, an upper frame 22, and a lower frame 23. Further, the balance weight device 1 of the elevator includes a suspension plate 24 for fastening the main rope 3, a base 25 for receiving contact with the shock absorber 6, and a reinforcing material 26 for reducing the spread between the two vertical frames 21. A weight 27 for adjusting the weight is provided. Further, the elevator balancing weight device 1 is provided on both sides in the width direction of the frame body, and includes a guide device 28 that guides the elevator balancing weight device 1 from the balancing weight side guide rail 7 so that the elevator balancing weight device 1 does not come off.

For example, in FIG. 3, a predetermined component (in this example, a suspension plate 24, a base 25, a reinforcing material 26, a weight 27, and a fastening bolt 29b on the outer side of the vertical frame 21) and a frame body from which the predetermined component has been removed. And the guide device 28 attached to the frame body after the adjustment work related to the gap between the balance weight side guide rail 7 and the balance weight side guide rail 7 is performed.

In the frame body used when mounting the balancing weight device 1 of the elevator, the fastening bolt 29a on the center side of the vertical frame 21 among the fastening bolts 29 for fastening the vertical frame 21 and the upper frame 22 is temporarily fixed, and the vertical frame 21 is temporarily fixed. The outer fastening bolt 29b is removed, the fastening bolt 29a on the center side of the vertical frame 21 of the fastening bolts 29 for fastening the vertical frame 21 and the lower frame 23 is temporarily fixed, and the outer fastening bolt 29b of the vertical frame 21 is removed. It has been removed. In other words, the frame body has a pair of vertical frames 21 and a pair of horizontal frames (upper frame 22 and lower frame 23) rotatably connected to the pair of vertical frames 21. The horizontal frame is a rectangular plate-shaped member.

Further, the elevator balancing weight device 1 includes an outer stopper mechanism 31 on the outside of one diagonal frame of the elevator balancing weight device 1 and another diagonal frame to which the outer stopper mechanism 31 is not attached. An inner stopper mechanism 32 is provided inside the body.

FIG. 4 is a diagram showing an example of the outer stopper mechanism 31. Note that FIG. 4 is a conceptual diagram of the balance weight device 1 of the elevator as viewed from the side surface side.

As shown in FIG. 4, the outer stopper mechanism 31 is provided on the vertical frame 21 by a structure in which the vertical frame 21 is sandwiched between the outer stopper 31a and the bracket 31b. According to such a configuration, the outer stopper mechanism 31 can be provided on the vertical frame 21 even when the length of the vertical frame 21 protruding from the outside of the frame is short.

Further, the outer stopper mechanism 31 is provided with a washer 31c between the vertical frame 21 and the bracket 31b so as to securely sandwich the vertical frame 21, and the outer stopper 31a and the bracket 31b are bolted together.

The outer stopper 31a is paired with the slope 311 that restricts the rotation of the frame body by contacting the upper frame 22 or the lower frame 23 with the apex 322 of the inner stopper mechanism 32 described later, and is an embodiment when the frame body is attached. It is a polygonal body having vertices 312 for holding.

Further, the outer stopper 31a is provided with two or more fastening holes 313 for fastening to the bracket 31b. In this way, by fixing the outer stopper 31a and the vertical frame 21 at a plurality of places, the slope 311 is greatly displaced with respect to the vertical frame 21 as compared with the case of fixing at one place, and the position of the apex 312 is changed. It will be possible to avoid situations such as misalignment.

The bracket 31b is an example of a connecting member for providing the outer stopper 31a on the vertical frame 21. The bracket 31b has a step so as to sandwich the vertical frame 21 and the washer 31c, and is provided with the same number of fastening holes 314 as the outer stopper 31a.

For example, when a space for providing a fastening hole can be secured in a state where the outer stopper 31a, the bracket 31b, the washer 31c, and the vertical frame 21 are overlapped with each other, the outer stopper 31a, the bracket 31b, the washer 31c, and the vertical frame 21 are bolted together. It may be configured to be. According to such a configuration, the outer stopper 31a and the vertical frame 21 can be more firmly fixed.

FIG. 5 is a diagram showing an example of the inner stopper mechanism 32. Note that FIG. 5 is a conceptual diagram of the balance weight device 1 of the elevator as viewed from the side surface side.

As shown in FIG. 5, the inner stopper mechanism 32 is provided on the vertical frame 21 by a structure in which the vertical frame 21 is sandwiched between the inner stopper 32a and the bracket 32b. However, the structure is not limited to the sandwiching structure, and a structure may be used in which the inner stopper 32a and the vertical frame 21 are overlapped and fastened by a plurality of bolts penetrating the inner stopper 32a and the vertical frame 21.

The inner stopper 32a is a polygonal body having the same slope 321 and apex 322 as the outer stopper 31a, and is provided with two or more fastening holes 323 for fastening. In this way, by fixing the inner stopper 32a and the vertical frame 21 at a plurality of places, the slope 321 is greatly displaced with respect to the vertical frame 21 as compared with the case of fixing at one place, and the position of the apex 322 is changed. It will be possible to avoid situations such as misalignment.

The slope 321 limits the rotation of the frame body when the upper frame 22 or the lower frame 23 comes into contact with each other. The apex 322 is paired with the apex 312 of the outer stopper mechanism 31 and retains the aspect when the frame is attached.

The bracket 32b is an example of a connecting member for providing the inner stopper 32a on the vertical frame 21, and is provided with the same number of fastening holes 324 as the inner stopper 32a.

FIG. 6 is a schematic view showing a state of mounting work of the balance weight device 1 of the elevator.

Since the vertical frame 21 and the upper frame 22 temporarily fix each corner of the balancing weight device 1 of the elevator at one point of the fastening bolt 29a on the center side, the upper frame 22 is based on the fastening bolt 29a on the center side. Can rotate. Since the vertical frame 21 and the lower frame 23 are temporarily fixed at each corner of the balancing weight device 1 of the elevator at one point of the fastening bolt 29a on the center side, the lower frame 23 is based on the fastening bolt 29a on the center side. Can rotate.

Further, when the slope 311 of the outer stopper mechanism 31 and the slope 321 of the inner stopper mechanism 32 are in contact with the upper frame 22, the rotation of the upper frame 22 is caused by a predetermined angle α (0 degree <angle α <90 degree). Stop at. Further, when the slope 311 of the outer stopper mechanism 31 and the slope 321 of the inner stopper mechanism 32 come into contact with the lower frame 23, the rotation of the lower frame 23 stops at a predetermined angle α.

With such a configuration, the frame body can be deformed, and it is not necessary to remove and attach the guide device 28, which requires time for adjustment work, from the frame body, so that the time for attaching the balance weight device 1 of the elevator can be shortened. ..

Further, since the apex 312 of the outer stopper mechanism 31 and the apex 322 of the inner stopper mechanism 32 are in contact with the upper frame 22, the upper frame 22 cannot be rotated in the opposite direction (with the balance weight side guide rail 7). The rotation stops at the position where the gap is adjusted). The apex 312 of the outer stopper mechanism 31 and the apex 322 of the inner stopper mechanism 32 are in contact with the lower frame 23, so that the lower frame 23 cannot rotate in the opposite direction (the gap between the lower frame 23 and the guide rail 7 on the counterweight side). The rotation stops at the position where the adjustment is performed).

With such a configuration, the position for restoring the frame body can be easily determined, so that the time required for the installation work of the balance weight device 1 of the elevator can be further shortened.

(How to attach the elevator balance weight device 1 to the balance weight side guide rail 7)
The main procedure (example) for attaching the balance weight device 1 of the elevator is as follows.
(Procedure 1) The frame body is deformed by rotating the upper frame 22 and the lower frame 23 to the stopper (the slope 311 of the outer stopper 31a or the slope 321 of the inner stopper 32a) with respect to the pair of vertical frames 21 (procedure). 2) While restoring the frame, the guide device 28 is engaged with the counterweight guide rail 7 and rotated to the position of the stopper (the apex 312 of the outer stopper 31a and the apex 322 of the inner stopper 32a) (procedure 3). ) Install the specified parts

By such a method, the balance weight device 1 of the elevator can be attached without removing the guide device 28 which takes time for the adjustment work. Further, the stoppers (outer stopper 31a and inner stopper 32a) eliminate the need for adjusting the gap with the balance weight side guide rail 7 after restoration, thereby improving the efficiency of the mounting work.

The present embodiment is not limited to the above-described configuration, and has, for example, the following features.

For example, the balancing weight device 1 of an elevator is characterized by having stoppers (in the above example, the outer stopper 31a and the inner stopper 32a) that limit the rotation of the frame body.

Here, the stopper is not limited to the configuration in which the outer stopper 31a is provided diagonally to the balancing weight device 1 of the elevator and the inner stopper 32a is provided diagonally to which the outer stopper 31a is not attached. For example, one stopper may be provided at an appropriate position on the frame body, or a plurality of stoppers may be provided. The position, size, and range in which the stopper is attached to the frame may be appropriately configured.

Further, the stopper is not limited to the configuration having a slope, and a limiting portion (for example, a fixing portion by a bolt or the like, or other configuration) that restricts the rotation of the frame body can be appropriately adopted. According to such a configuration, it is not necessary to remove the guide device 28, and it is possible to avoid a situation in which the frame body is rotated more than necessary when the frame body is deformed. Time can be shortened.

Further, for example, the stopper (for example, the outer stopper 31a) is characterized by having a holding portion (for example, the inner stopper 32a) for holding the mounting mode of the frame body diagonally to which the stopper is not provided. And.

Here, the configuration for maintaining the mounting mode of the frame is not limited to the configuration in which the apex 312 of the outer stopper 31a and the apex 322 of the inner stopper 32a are paired, and the direction of deformation is not limited to the configuration. An appropriate limiting portion that restricts rotation in the reverse direction (for example, a locking portion is provided near the guide device 28 of the vertical frame 21, and the vicinity of the apex of the horizontal frame is locked by contacting the locking portion. , Other configurations) can be adopted. According to such a configuration, the position where the frame body is to be restored can be easily determined, and the gap after adjustment with the balance weight side guide rail 7 can be quickly and accurately reproduced. Therefore, the balance weight device 1 of the elevator can be reproduced. The time required for installation work can be shortened.

In addition, by adopting the stopper and the holding part, it is possible to avoid the situation where the frame is closed and the object is caught, so that the time required for the installation work of the elevator balancing weight device 1 is performed. Contributes to shortening of.

According to this embodiment, it is possible to realize a balance weight device for an elevator with high maintainability.

Although the present embodiment has been described above, the configuration described in the present embodiment is merely an example, and the present invention can be appropriately modified without departing from the technical idea.

(2) Other Embodiments In the above-described embodiment, the case where the present invention is applied to the balance weight device 1 of an elevator has been described, but the present invention is not limited to this, and various other embodiments are described. It can be widely applied to the mounting method of the elevator balancing weight device and the elevator balancing weight device.

Further, in the above-described embodiment, the configuration in which the guide devices 28 are provided diagonally to the frame body has been described as an example, but the number of the guide devices 28, the mounting position of the guide devices 28 to the frame body, and the guides have been described. The shape of the device 28 is not particularly limited, and an appropriate configuration can be adopted.

Further, the above-mentioned configuration may be appropriately changed, rearranged, combined, or omitted as long as it does not exceed the gist of the present invention.

1 ... Elevator balancing weight device, 21 ... Vertical frame, 22 ... Upper frame, 23 ... Lower frame, 24 ... Suspension plate, 25 ... Base, 26 ... Reinforcing material, 27 ... Weight, 28 ... Guide device, 29 ... Fastening bolt, 31 ... Outer stopper mechanism, 32 ... Inner stopper mechanism.

Claims (4)

A frame body having a pair of vertical frames and a pair of horizontal frames rotatably connected to the vertical frame,
An outer stopper provided on the outside of the diagonal of the vertical frame and having a first slope at a predetermined angle that limits the rotation of the frame by contact with the horizontal frame .
It has a second slope at a predetermined angle, which is provided inside the diagonal of the vertical frame to which the outer stopper is not provided, and which limits the rotation of the frame by contact with the horizontal frame. With the inner stopper,
A guide device provided on the frame and engaged with a guide rail installed in the hoistway, and a guide device.
Equipped with
The apex of the side constituting the first slope on the frame body side and the apex of the side constituting the second slope on the frame body side are in contact with the horizontal frame, so that the guide is balanced with the frame body. The rotation of the frame stops at the position where the gap with the rail is adjusted.
Elevator balance weight device featuring this. The inner stopper and the vertical frame are overlapped with each other and fastened by a plurality of bolts penetrating the inner stopper and the vertical frame.
The elevator balancing weight device according to claim 1. A coupling member for providing the outer stopper on the vertical frame is provided.
The outer stopper is provided on the vertical frame by a structure in which the vertical frame is sandwiched between the coupling member and the coupling member.
The elevator balancing weight device according to claim 1. A frame body having a pair of vertical frames and a pair of horizontal frames rotatably connected to the vertical frame is provided outside the diagonal of the vertical frame, and the horizontal frames come into contact with each other. An outer stopper having a first slope at a predetermined angle that restricts the rotation of the frame body is provided inside the diagonal of the vertical frame without the outer stopper, and the horizontal frame is in contact with the outer stopper. This engages with an inner stopper having a second slope at a predetermined angle that limits the rotation of the frame and a guide rail provided on the frame and installed in the hoistway. It is an installation method for installing the balance weight device of the elevator equipped with the guide device.
The first step of deforming the frame body by rotating the horizontal frame to the outer stopper and the inner stopper with respect to the vertical frame, and
Includes a second step of engaging the guide device with the guide rail while restoring the frame.
The apex of the side constituting the first slope on the frame body side and the apex of the side constituting the second slope on the frame body side are in contact with the horizontal frame, so that the guide is balanced with the frame body. The rotation of the frame stops at the position where the gap with the rail is adjusted.
How to install the balance weight device of the elevator, which is characterized by this.

Images