JPS58158501A - Method and jig for centering emergency stopping device of elevator cage - Google Patents

Abstract

PURPOSE:To simplify centering work without damaging other parts, by forming a centering jig engaging part in the main body of the emergency stopping device, engaging a notched groove provided on the central line of said body with a guide rail, and centering the emergency stopping device with respect to the guide rail. CONSTITUTION:When a guide shoe which is attached to the upper side of a cage frame 2 is slidden along the guide rail 10, a guide shoe 9 at the lower end side is not attached. Under this state, the cage frame 2 is made to be laterally moved by a hook. The centering jig 20 is engaged with the engaging part 19 at the upper surface of an upper plate 12a of the main body 12 of the emergency stopping device 11, in such a way that the jig 20 is inserted from a back side. Then the cage frame 2 is adjusted, and the centering jig 20 is pushed forward with the jig 20 being engaged with the engaging part 19. The tip notched groove 21 is coupled with a tooth part 10a of the guide rail 10. In this way, the center of the emergency stopping device 11 that is attached to the cage frame 2 is aligned with the vertical center line 0 of the guide rail 10. Thus the accurate centering with respect to the emergency stopping device 11 with respect to the guide rail 10 can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for centering a guide rail when installing an emergency stop device at an elevator corner, and a centering jig used in the method.

[Technical background of the invention]

Generally, in a hoisting type elevator, as shown in Fig. 1, the car frame 2 of the car 1 is composed of a lower beam 3, both side supports 4, and an upper beam 5 made of channel steel or lightweight section steel.
The heel 1 is placed on the floor supporting frame 6 provided on the lower beam 3 of the main loso (
It is suspended so that it can be driven up and down by a hoist (not shown) in a machine room at the upper end of the elevator via a hoist (not shown). Further, guide seas 8, 9 (or guide rollers) are provided at the upper and lower ends of both side supports 4 of the car frame 2, and the car frame 2 moves up and down by sliding along guide rails 10 vertically installed on both side walls of the hoistway. It's like that. Furthermore, in this type of repeater, an emergency stop device 11 is attached to both sides of the lower part of the car frame 2 to make an emergency stop in the event that the heel 1 falls at a speed of 1.4 times or more than the rated speed due to some kind of failure such as disconnection of the main loso. It is being

That is, this emergency stop device 11 has a structure in which a pair of wedges 13.13 are incorporated into the main body 12, and the upper plate portion 12a of the main body 12 is attached to the lower sides of the car frame 2 as shown in FIGS. 2 to 4. It is installed by fixing the bolt 14,
In the event of an emergency as described above, the pair of wedges 13 and 13 are pressed against the guide rail 10 by sandwiching it from both sides.
It is designed to bring the machine to a sudden stop. The above-mentioned lower guide shoe 9 is fixed and reprinted by the lower plate part 12bKdelt 15 of the main body 12 of the emergency stop device 11.

By the way, in an elevator in which the heel 1 moves up and down along the guide rail 10 together with the car frame 2 by means of the upper and lower guide shoes 8.9 as described above, the vertical center line 0 of the guide rail 10 is very close to the vertical center line 0 of the guide rail 10 as shown in FIG. There is no problem if the center lines of the stopper 11 are aligned, but if the center lines of the two are misaligned and the distances between the contact surfaces 13a, 13* of the opposing wedges 13, 13 and the guide rail 9 are 13.1 If they are not equal to each other and do not meet the design specifications, that is, if accurate centering is not performed, the wedges 13.1
Since one of the wedges 3 is too close to the guide rail 10 even under normal conditions, when the heel 1 shakes due to earthquakes or other causes, the wedge 13 comes into contact with the guide rail 10, causing sudden braking. There was a risk of malfunction such as overloading. For this reason, during elevator installation, it was sometimes necessary to perform centering adjustment work for the emergency stop device 11 with respect to the guide rail 10.

Here, the conventional method for centering the emergency stop device 11 is as follows.
As shown in the figure, bolts 14.1 are attached to the lower beam 3 of the car frame 2 in advance.
4, the main body 12 of the emergency stop device 11 is tightened and fixed.
Attach the guide shoe 9 to the lower surface of the lower plate portion 12b of the bolt J5.1.
5 is lightly tightened (temporarily tightened), and in that state, a cage 16 (stickiness) with a set thickness is interposed between one of the wedges 13 and the guide rail 10, and the guide shoe 9 is tightened. Either hit the mounting board 9a with a hammer 17 in the direction of the arrow, or push it in the direction of the arrow by inserting a rod-shaped lever 18 between the support 4 of the car frame 2 and the guide rail 1θ as shown in FIG. After temporarily tightening, the guide 7-9 is moved and adjusted so that the guide rail 16 and the guide rail IO are in perfect contact with each other. The centering of the emergency stop device 11 with respect to the guide rail 10 was performed by strongly tightening the □ 5 and fixing it to the main body 12.

[Problems with background technology]

With the conventional centering method described above, it is impossible to accurately fine-tune the guide rail 10 of the emergency stop device 1 to the nearest few millimeters. The shoes 9, guide rails 10, and car frame 2 may be damaged, or the emergency stop device 11, which was previously installed at the factory after adjusting its centering to the car frame 2 using a special centering jig, may be damaged by a hammer 17, etc. There is a problem in that the center of the car frame 2 with respect to the guide rail 10 is twisted due to the shift due to impact, and there is also the problem that centering work is troublesome and requires a lot of time and effort.

[Purpose of the invention]

This invention was made in view of the above circumstances, and it is possible to perform the centering work of the emergency stop device with respect to the guide rail very easily and accurately, and in a short time without damaging other parts. An object of the present invention is to provide a method and a centering jig used in the method.

[Summary of the invention]

(1) In this invention, a centering jig engaging portion is formed on the main body of the emergency stop device that is installed in a smart manner, and the centering jig is engaged with the engaging portion when installing the elevator. A very simple method for centering the emergency stop device with respect to the guide rail by fitting the notch groove, which will be located on the center line of the main body in the above state, to the center line of the centering jig, and aligning the emergency stop device to the guide rail. The invention is characterized by a method.

(2) The invention of the octopus is used in the above-mentioned centering method, and includes a tip portion that can be engaged and positioned in the locking portion of the main body of the emergency stop device, and that is located on the center line of the main body in the locked state. The present invention is characterized by a centering jig configured to have a cutout groove having the same width as the guide rail, which can be fitted into the guide rail.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 7 to 11. In the figure, parts having the same configuration as those in FIGS. 1 to 4 are designated by the same reference numerals to simplify the explanation.

First, FIG. 7 shows the emergency stop device 11 alone, and a shallow groove-shaped retaining portion 19 is provided at the center of the upper surface of the upper plate portion 12m of the main body 12 so that a pair of wedges 13, 13 are opposed to each other. It is formed in a direction perpendicular to the direction in which it faces.

It has a notched groove 21 at the center of the tip, and is tightly fitted into the upper surface retaining portion 19 of the upper plate portion 12m of the main body 12 of the emergency stop device 11 as shown in FIGS. 9 and 10. The center of the tip notch groove 2 is aligned with the center line of the emergency stop device 1, that is,
The center line between the pair of opposing wedges 13.13 of the main body 12 coincides with each other, and the notch groove 21 thereof has the same width as the width dimension of the toothed portion 1θa of the guide rail 10. It is designed to fit snugly. As shown in FIG. 10, this centering jig 20 has a length that protrudes several centimeters toward the back side of the upper plate portion 12a of the main body 12 of the emergency stop device 1, so that the centering jig 20 has a length that projects several centimeters toward the back side of the upper plate portion 12a of the main body 12 of the emergency stop device 1. It can be easily inserted into and removed from the portion 19 from the rear.

Therefore, the method for centering the emergency stop device 11 when installing an elevator is to first center the emergency stop device 11 at the bottom of both side ends of the lower beam of the car frame 2 in a factory or the like using a special jig (not shown). Take it out and install it. Delivered to the installation site in this condition,
The car frame 2 is installed so that the heel 1 is placed between the guide rails 10 on both sides in the hoistway. At this time, the guide shoe 8 added to the upper end of the car frame 2 is slid onto the guide rail 10, but the guide shoe 9 at the lower end is not attached (see FIG. 9). In this state, the car frame 2 is lifted up by a hook (not shown) so that the worker can easily move it horizontally by hand, and as shown in FIGS. The centering jig 20 is inserted into the engaging portion 19 on the upper surface of the car frame 12a from the back side, and then the worker adjusts the car frame 2 by pushing and moving it by hand to engage the centering jig 2θ. It is pushed out while being engaged with the mating portion 19 so that its tip notch groove 21 fits into the tooth portion 10a of the guide rail 10.

With this, the center of the emergency stop device 119- attached to the car frame 2 matches the vertical center line O of the guide rail 10, and accurate centering of the emergency stop device 1 with respect to the guide rail 10 has been achieved. . Here, with the notch groove 21 still fitted into the guide rail 1o, the guide shoe 9 is slidably fitted onto the lower surface of the lower plate portion 12b of the main body 12 of the emergency stop device 11 onto the guide rail 10, as shown in FIG. In this state, tighten the port 15 to fix it.

With the above steps, the centering of the car frame 2 with respect to the guide rail 1θ and the centering of the emergency stop device 1 with respect to the guide rail 10 have been completed.
If you remove it by pulling it out from behind, the work will be photon.

According to the above-mentioned method, the centering adjustment is troublesome and takes a lot of effort as in the conventional method, and it may damage the idle shoe etc. or the center of the emergency stop device 11 with respect to the car frame 2 may shift, making it impossible to achieve accurate centering. This eliminates the drawbacks such as the inability to perform centering, and it becomes possible to perform centering very easily, in a short period of time, and extremely accurately.

Next, various modifications of this invention will be explained.

First, in FIGS. 12 and 13, the main body 1 of the emergency stop device 11 is shown.
A groove-shaped engaging member 19k is provided on the upper surface of the upper plate portion 12m of 2 from the layer end to the middle of the front side of the upper plate portion 12m.
This is a method using the centering jig 20A provided with h, and the same effect as the above embodiment can be obtained.

In addition, as shown in FIGS. 14 and 15, the emergency stop device 11
A centering jig has a narrow elongated groove-shaped engagement part 19B formed on the upper surface of the upper plate part 12m of the main body 12, and has a corresponding elongated protrusion 20b that can be engaged with the retaining part 19B. This method uses the jig 20B, and the same effects as in the above embodiment can be obtained even with the method using the jig 20B.

Next, in FIGS. 16 and 17, a retaining part (not shown) consisting of a plurality of bottle holes is formed in the upper plate part 12a of the main body 12 of the emergency stop device 11, Hole 2
A method of centering by using a centering jig 20C formed with 0c and 20c, and positioning and engaging the jig 2θC with a pin 22.22 on the upper plate portion 12a of the main body 12 of the emergency stop device 11. With this, the same effect as in the above embodiment can be obtained, and the tip notch groove 2 of the centering jig 2θC can be obtained.
By specifying the depth of 1, it becomes possible to similarly complete the position adjustment in the direction of the rail cage shown by arrow B in FIG.

In addition, in FIG. 18, the upper plate portion 1 of the main body 12 of the emergency stop device 11 is shown as in the embodiments shown in FIGS. 8 to 11.
A groove-shaped engaging part 19 is formed on the upper surface of the main body 12m, and a rectangular plate-shaped centering jig 20 that engages with the groove-shaped engaging part 19 is used. Marks 23 and 24 made of scribe lines or paint are placed on the top surface, and by aligning the two marks 23 and 24 as shown in the figure, the position in the direction of the rail can be adjusted in the same way as described in FIG. 17 above. It becomes like this.

〔Effect of the invention〕

Since this invention is made as detailed above, it is possible to perform centering work for the guide rail of the emergency d-mechanical device in a very simple and accurate manner, and in a short time without inconveniences such as damaging other parts. This is an extremely effective method. Furthermore, the centering jig used in this method is extremely easy to handle and is advantageous for accurate centering.

[Brief explanation of the drawing]

Figure 1 is a side view showing the car structure of a general elevator, Figure 2 is an enlarged view of section A in Figure 1, Figure 3 is a front view of Figure 2,
FIG. 4 is a plan view of FIG. 2, FIGS. 5 and 6 are side views and plan views showing the conventional centering method, and FIGS. 7 and 8 are used for an embodiment of the method of the present invention. 9 and 10 are side views and plan views showing an embodiment of the method of the present invention using the jig shown in FIG. 8; Figure 11 is a side view of the emergency stop device centered in the above method with the guide fixed to the lower side, Figures 12 and 1.
3 is a side view and a front view showing a first modification of the present invention, FIGS. 14 and 15 are a plan view and a perspective view of a centering jig showing a second modification of the invention, and FIG. Figure 16 and 1st
7 is a perspective view and a plan view showing a third modification of the invention, and FIG. 18 is a perspective view showing a fourth modification of the invention. 1... Car, 2... Car frame, 3... Lower beam, 4...
Pillar, 5... Upper beam, 6... Floor support frame, 7... Anti-vibration rubber, 8.9... Guide shoe, 10... Guide rail, 11... Emergency stop device, 12.・・Body, 12m
...Top plate part, 12b...Lower plate part, 13...Wedge, 14.15...Bolt, 16...Dart, 17.
... Hammer, 18... Lever, 19.19, 19B...
・Engaging part, 2θ1, ? OA, 20B, 20C--Centering jig, 20h...Step, 20b...Protrusion, 20c
... Bottle hole, 21 ... Notch groove, 22 ... Pin, 2
3.24...mark. Applicant's agent Patent attorney Takehiko Suzue 14- Figure 6 3o odo' 40 04 u<, 9 F 1 Figure 13 Figure 17 0o2oC 7720C2 Figure 18

Claims (2)

[Claims] (1) In the centering method of an emergency stop device that pinches the guide rail and stops the elevator in an emergency such as a breakdown due to the car frame being moved up and down on a guide rail, an emergency stop is provided. A retaining portion is formed in the main body of the device, a centering jig is engaged with the retaining portion, and in this state, a notch groove is formed at the tip of the centering jig so that it is located on the center line of the main body. A method for centering an elevator car emergency stop device, characterized in that the safety stop device is centered with respect to the guide rail by fitting it into the guide rail. (2) A centering jig for an elevator car emergency stop device having a notch groove having the same width as the guide rail and capable of being fitted into a retaining portion of the main body of the emergency stop device at a retaining position.