JPH054786A - Elevator guide rail connecting method and device therefor - Google Patents

Abstract

PURPOSE:To automate the installation of guide rails by spraying a solvent to the rust preventives applied tenon parts of guide rail connecting pars, and fitting the tenon parts to each other while vibrating the guide rail to remove rust preventives. CONSTITUTION:The lower end of a guide rail 6b is moved above a lowest guide rail 6a to perform the positioning of the guide rail 6b and to perform vertical centering with the lowest guide rail 6a. The solvent of rust preventives is then sprayed to the connecting parts of the guide rails 6a, 6b, and the centering tenon 6b3 of the guide rail 6b is engagedly dropped into the centering groove 6a4 provided at the top end part of the lowest guide rail 6a while vibrating the guide rail 6b by an exciter. The fitting of the guide rails 6a, 6b can be thereby performed automatically and surely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for connecting guide rails to be installed on the inner wall surface of an elevator hoistway, and a connecting device therefor.

[0002]

2. Description of the Related Art Generally, an elevator for raising and lowering a person or an object in a high-rise building has a gondola 2 arranged in a vertically extending hoistway 1 as shown in FIG.
It is configured to move up and down by a suspension mechanism 3 provided on the top of the.

The gondola 2 is suspended from the lower end of a rope 4 suspended from a suspension mechanism 3, and a balance weight 5 is suspended from the other end of the rope 4. Both sides of the gondola 2 and the balance weight 5 are engaged and guided by guide rails 6 and 7 which are provided upright on the inner surface side of the hoistway 1, and by the operation of the suspension mechanism 3, The gondola 2 is configured to move up and down while being guided along the guide rails 6.

The guide rails 6 and 7 are mounted on the inner wall surface of the hoistway 1 of the building as shown in FIGS. 14 and 15. At the time of mounting, the dampers are attached to the bottom of the hoistway 1 as shown in FIG. The base 6a is installed, and the guide rails 6 are set up at both ends of the damper base 6a.
After fixing the mounting metal fitting 9 to the wall surface of the hoistway by means of a winch arranged on the rooftop or the like, the guide rail 6 is hung, and the lower end of the guide rail 6 hung by this winch is connected to the next end via a relay metal fitting 10. Connect the guide rails,
After repeating this connection and lifting all the guide rails, while using the scaffolds assembled in the hoistway 1,
The mounting bracket 9 is fixed by an anchor bolt 8 at a predetermined position on the inner wall surface of the hoistway with the piano wire hanging from the reference position as a reference, and the guide rail 6 is fixed to the mounting bracket 9 via a rail bracket 11 and a shim or the like. By doing so, the guide rail is laid.

By the way, a tenon groove and a protrusion are formed at the end of each guide rail 6, and the tenons of the guide rails arranged vertically are fitted to each other and fixed to each other by the relay metal fitting 10. The connection is being made.

[0006] However, in such a scaffold assembled and a worker rides on the scaffold in this way, the worker needs to move up and down on the scaffold every time the work content changes. Not only does it take a lot of labor and time, but it is difficult to maintain the safety of workers due to work on imperfect scaffolding at high places in modern skyscrapers, which causes fatigue of workers. There is a problem such as a high degree.

Therefore, in order to solve the above problem, a hoistway working device in which a hoisting work frame is provided in the hoistway is also proposed (Japanese Patent Laid-Open No. 58-193876).

[0008]

However, in the conventional device as described above, there is no means for removing the rust preventive agent applied to the centering tenon of the upper and lower guide rails in the rail connecting work. , I have manually removed the anti-corrosion agent from the groove in advance, but since there is almost no gap in the tenon,
It takes a lot of time to remove the rust preventive agent, which is a serious obstacle to automation of rail connection.

In view of the above-mentioned problems, the present invention, in the work of connecting elevator guide rails, does not manually remove the rust preventive agent fixed to the guide rail connecting portion, but automatically removes the rust preventive agent while connecting the rails. It is an object of the present invention to obtain a connecting method and a connecting device capable of performing the above.

[0010]

According to a first aspect of the present invention, in a method for connecting guide rails installed on an inner wall surface of an elevator hoistway, a rust preventive agent is applied to a connecting portion of upper and lower guide rails connected to each other. The tenon part is sprayed with a solvent, and the guide rails connected to each other are vibrated by a vibrator to remove the rust preventive agent, while the tenons of the upper and lower guide rails are fitted to each other. ,
A second aspect of the present invention is a moving base arranged to be movable up and down in the hoistway by an elevating wire hung from the top of the elevator hoistway; A movable frame that is mounted so as to be rotatable, a guide rail gripping mechanism that is mounted on the movable frame and that guides and supports a guide rail that is suspended at a guide rail installation location, and a positioning pin for the guide rail that is mounted on the movable frame. , Screwing mechanism of relay metal fittings that connect the guide rails, solvent spraying device that sprays the solvent to the rust preventive agent coating parts that are applied to the upper and lower guide rail connecting parts, and the guide rail positioning pins. And a work robot having a vibrating mechanism for applying vibration to the fitting portion of the guide rail.

[0011]

[Operation] When connecting the next guide rail to the top of the guide rail installed immediately before, the solvent of the rust preventive agent should be removed from the connection between the next suspended guide rail and the already installed guide rail. Apply spray and shake the positioning pin in the screw hole at the lower end of the guide rail with a vibrator to vibrate the guide rail connecting part and remove the rust preventive agent on that part while removing the upper and lower guide rails. Fit the tenon. Then, when connecting the guide rails,
There is no need to manually remove the rust preventive agent each time.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 and 2, reference numeral 20 is a movable base of the working apparatus of the present invention, and the movable base 20 has a movable frame 21 having two beams 21a extending upward.
Is mounted so that it can move in the left-right direction and turn around the longitudinal axis. A suspending tool 22 is provided on the top end of the beam of the movable frame 21, and the lower end of the elevating wire 23 suspended from a hoisting machine (not shown) disposed at the top of the elevator hoistway is used to suspend the suspension. The movable base 20 is moved up and down by being connected to the tool 22 and by moving up and down the lifting wire 23.

A first guide rail gripping mechanism 30 is mounted vertically in two steps below the front side of the movable frame 21 (the side facing the inner wall surface where the guide rails of the hoistway are to be installed). (FIGS. 3 and 4), the second guide rail gripping mechanism 40 is mounted on the back side of the moving base 20 in two stages, upper and lower. In addition, between the two beams 21 a of the movable frame 21, a third guide rail gripping mechanism 50 of two upper and lower stages is provided on the upper part thereof, and the first work robot 60 is further provided on the moving base 20. Also, a second work robot 70 is provided, and a third work robot 80 is mounted below the third guide rail gripping mechanism 50. Further, a fixing mechanism 100 for the moving base 20 is attached to each of the left and right ends of the moving base 20.

5 and 6 are a plan view and a front view of the first guide rail gripping mechanism, in which the movable frame 21 is approached to each other by drive cylinders 32a and 32b along a guide 31 extending in the left-right direction. Alternatively, a pair of movable members 33a and 33b that move in the direction of separation are provided, and the movable members 33a and 33b are provided with rollers 3 that engage with the side surfaces of the guide rails 6 and that rotate about the longitudinal axis.
4a and 34b and rollers 35a and 35b which engage with the side surfaces of the guide rail 6 at the constricted portion are mounted. The rollers 35a and 35b are configured to press the top surface of the guide rail 6 against the roller 37 that is mounted by the pressing cylinders 36a and 36b so as to be rotatable about the horizontal axis.

On the other hand, the upper and lower two sets of the second guide rail gripping mechanisms 40 provided on the back side of the movable base 20 are arranged so that the guide rails 6 can be inserted through the respective gaps as shown in FIG. Left and right frames 41a installed,
41b, each frame 41a, 41b thereof
Further, a pair of movable members 44a and 44b are provided which move in the directions toward and away from each other by the drive cylinders 43a and 43b along the guides 42a and 42b extending in the left-right direction. The movable members 44a and 44b include flanged rollers 45a and 45b that rotate around the front and rear axes that engage with the side surfaces and the top surface of the guide rail 6, and rollers 46a that engage with the constricted portion side surface of the guide rail 6. 46b are mounted respectively, and the rollers 46a and 46b press the guide rail 6 against the brim portions of the rollers 45a and 45b by pressing cylinders 47a and 47b, respectively.

Further, a third guide rail gripping mechanism 50 is provided above and below the beam of the movable frame 21 in two sets, one above the other.
As shown in FIGS. 2 and 3, each has a frame body 51 having a U-shape in a plan view, which is mounted so as to straddle two beams,
A rail gripping tool 52 is mounted on the frame 51 so as to be movable between the front side and the back side of the moving base 20. That is,
The rail gripping tool 52 is screwed onto a screw shaft 54 or the like that is rotated by the drive device 53, and the rotation of the screw shaft 54 causes the rail gripping tool 52 to move to the second guide rail gripping mechanism 4.
The space between the upper part of 0 and the upper part of the first guide rail gripping mechanism 30 is moved forward or backward. Further, the rail gripping tool 52 has rollers 55 that engage with both side surfaces of the guide rail 6 and the constricted portion similarly to the second guide rail gripping mechanism 40.

The third work robot 80 is constructed as shown in FIG. That is, on the front surface of the two beams 21a of the movable frame 21, the arms 8 projecting laterally from the guide rod 81 extending in the front-rear direction between the two beams 21a.
2 is mounted so as to be vertically movable along the beam 21a.

A guide rod 82 is provided between the two guide rods 82.
The screw shaft 83 mounted on the
Is provided with a movable base 84 that can be moved back and forth along the screw shaft 83. A rotary table 85 that rotates around the vertical axis is mounted on the moving table 84, and a pair of positioning pins 87 that are moved forward and backward by the drive cylinders 86a and 86b are mounted on the rotary table 85.
a, 87b, screw tightening mechanisms 88a, 88b arranged below the positioning pins 87a, 87b, and an adjusting mechanism 89 for adjusting the distance between the positioning pins 87a, 87b.
a and 89b are attached.

Further, as shown in FIG. 9, a vibrator 93 composed of a vibration cylinder 91 and a vibration plate 92 is interposed between the screw tightening mechanisms 88a and 88b and the positioning pin holding mechanisms 90a and 90b. Further, above the positioning pin holding mechanisms 90a and 90b, a solvent spray device 94 for spraying a solvent of a rust preventive is mounted. That is,
Above the positioning pin holding mechanisms 90a and 90b,
As shown in FIG. 9, a solvent tank 94a and a spray pump 94b are provided, and the spray pump 94b is provided.
94c extending parallel to the positioning pin 87a from the
Is provided.

The guide rail 6a is attached to the inner wall surface of the hoistway in the following manner.

First, the lowermost guide rail 6a is attached by a bracket to a predetermined position on the inner wall surface of the hoistway by a worker. Therefore, the rollers 34a, 34b, etc. of the first guide rail gripping mechanism 30 provided on the moving base 20 of the working apparatus suspended by the lifting wire 23 are engaged with the lowermost guide rail 6a, The working device can be moved up and down along the guide rail 6a (FIG. 1).

Next, the moving base 20 is moved to the top position of the lowermost guide rail 6a, and the fixing mechanism 100 is advanced to abut against the inner wall surface of the hoistway and sucked by the air pad to move the moving base 20. Is fixed to the inner wall surface of the hoistway. At the same time, the second guide rail 6b from the bottom is erected on the guide rail supply mechanism 120, and the top of the guide rail 6b is gripped by the rollers 45a, 45b of the second guide rail gripping mechanism 40, and the second from the bottom. the guide rail 6b to be attached to the lifting wire, inserted into the positioning pin 87a, the upper connection hole 6b ₁ of which is provided with 87b in the lower end portion of the guide rail 6b of the third work robot 80 as shown in FIG. 10 Then, the wire is loosened a little, and the guide rail 6b to be attached second from the bottom is supported by the rail gripping tool 52 of the third guide rail gripping mechanism 50 and the positioning pins 87a, 87b.

Therefore, the guide rail gripping mechanism 52 and the moving base 84 of the third work robot 80 are moved to the front side, and the lower end of the guide rail 6b is moved above the lowermost guide rail 6a, and the piano wire is moved. The position and orientation of the guide rail 6b are measured with reference to 114, and the guide rail 6a at the lowermost portion is vertically aligned. Then, the spray pump 94b is operated to spray the solvent of the rust preventive agent from the spray 94c to the connecting portion of the guide rail, and at the same time, the vibration cylinder 91 of the vibration exciter 93 causes the vibration plate 92 and the positioning pin 8 to be moved.
7a, while vibrating the guide rail 6b through 87b, guide the centering tenon 6b ₃ of the rail 6b of the bottom guide rail 6a centering groove 6a provided et the top end of the
Engage as it drops into ₄ (Figure 12). Positioning pins 87a and 87b supporting the guide rail 6b
The tip of each of them is further inserted into the connecting hole of the relay metal fitting 10 at the top of the lowermost guide rail 6a, and the screw tightening mechanisms 88a, 8
8b, the lower connecting hole 6b ₂ of the guide rail 6b and the lower connecting hole 10b of the connecting fitting 10 of the guide rail 6a.
And are fastened with bolts. Then the positioning pin 87
a, pulling the 87b, screw tightening mechanism 88a, 88b to move to the position of the connecting hole 6b ₁ of the upper guide rail 6b, the connecting fitting 10 of the further guide rail 6b and the guide rail 6a by bolts through the connecting holes To connect.

In this way, the second guide rail 6a is mounted on the guide rail 6a.
When the guide rails of the stage are connected, the fixing mechanism 100 of the moving base 20 is released, and the moving base 20 is lifted up to the bracket mounting position along the guide rail 6b.
Therefore, the bracket is fixed to the inner wall surface of the hoistway.

That is, since the film thickness of the rust preventive agent is generally several μm, if the rust preventive agent is attached to the tenon 6b ₃ of the connecting portion of the guide rail 6, the tenon cannot be fitted. By performing as described above, the rust preventive agent is automatically removed, and the guide rails can be fitted automatically and reliably.

In the above embodiment, an example of an installation method in which the guide rails are piled up and fixed one by one, but there is also a method in which the guide rails are all connected in the hoistway and suspended, and then fixed to the wall surface. In this case, the weight of the suspended guide rail is too large to sufficiently vibrate. Therefore, the rail supply mechanism 120 is provided with a vibrating cylinder together with the rail gripping mechanism, and the vibrating cylinder vertically vibrates the guide rail. You may do it.

[0028]

Since the present invention is configured as described above, in the elevator guide rail connecting work, the rails are connected while automatically removing the rust preventive agent adhering to the tenon at the end of the guide rail. It is possible to automate the installation of the elevator guide rail in the hoistway, which is difficult for people to approach.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of the present invention.

FIG. 2 is a perspective view of a work device body according to the present invention.

FIG. 3 is a plan view of a work device.

FIG. 4 is a front view of the work device.

FIG. 5 is a plan view of a first guide rail gripping mechanism.

FIG. 6 is a front view of a first guide rail gripping mechanism.

FIG. 7 is a plan view of a second guide rail gripping mechanism.

FIG. 8 is a top perspective view of a third work robot unit.

FIG. 9 is a partially enlarged perspective view of a third work robot unit.

FIG. 10 is an operation explanatory view of a positioning pin.

FIG. 11 is an operation explanatory view of a connecting portion of the guide rail.

FIG. 12 is a view showing a fitted state of a guide rail tenon.

FIG. 13 is a diagram showing a schematic configuration of a general elevator.

FIG. 14 is a front cross-sectional view inside the elevator hoistway.

FIG. 15 is a half cross-sectional view of the elevator hoistway.

FIG. 16 is an explanatory diagram of an elevator guide rail installation work.

[Explanation of symbols]

6,6a, 6b Guide rail 20 Moving base 80 Third Work Robot 87a, 87b Positioning pin 88a, 88b screw tightening mechanism 93 shaker 94 spray device 94a solvent tank 94b spray pump 94c spray

Claims (2)

[Claims] 1. A method of connecting guide rails to be installed on an inner wall surface of an elevator hoistway, wherein a solvent is spray-applied to a tenon portion to which a rust preventive agent is applied in a connecting portion of upper and lower guide rails connected to each other. While removing the rust preventive agent by vibrating the connected guide rail with a vibrator,
A method for connecting an elevator guide rail, characterized in that the tenons of the upper and lower guide rails are fitted together. 2. A moving base arranged to be movable up and down in the hoistway by an elevating wire hung from the top of the elevator hoistway, and a swivel on the moving base around left and right and longitudinal axis glands. A movable frame that is movably mounted, a guide rail gripping mechanism that is mounted on the movable frame, and that guides and supports a guide rail that is hung at a guide rail installation location, a positioning pin for the guide rail that is mounted on the movable frame, It is connected via the screw tightening mechanism of the relay metal fitting that connects the guide rails, the solvent spraying device that sprays the solvent to the rust preventive application parts that are applied to the upper and lower guide rail connecting parts, and the guide rail positioning pin. An elevator guide rail coupling device, comprising: a work robot having a vibrating mechanism that applies vibration to a fitting portion of the guide rail.