JPH08225272A - Main rope elongation adjusting device for elevator - Google Patents

Abstract

PURPOSE: To provide a main rope elongation adjusting device for an elevator capable of quickly conducting the work with a simple structure in the elevator connecting the rope end section at the upper section of a car and a balance weight. CONSTITUTION: This main rope elongation adjusting device is connected or removed to or from a connection section to a main rope at the upper section of a car and a balance weight 10 by at least two removable pins to shorten the main rope 1 in length.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator main rope extension adjusting device, and more particularly to an elevator main rope extension adjusting device suitable for a high lift elevator.

[0002]

2. Description of the Related Art Generally, in a rope type elevator in which a car is suspended by using a rope and a driving force is applied to the rope to elevate the car, according to the lifting height of the elevator, The rope length will also be long.

If the rope is a new one or a new one attached at the time of replacement, the length of the rope at the time of attachment may be an appropriate length for raising and lowering the elevator. When the elevator is driven and the rope is loaded, it stretches in about 1-2 years and becomes too long.

In this way, if the extension occurs, for example, when the car is stopped on the top floor, there is a risk that the counterweight will collide with the floor surface of the hoistway, so that it is necessary to adjust the length of the rope. It was

Therefore, conventionally, a rope end portion is stretched on the floor of the machine room above the hoistway or the floor at the bottom of the hoistway, and the adjustment block is fastened to the rope end portion by a plurality of bolts. A device for adjusting the length has been proposed.

Incidentally, as an apparatus of this kind, an actual development sho 60
No. 6767, No. 58-192866, and the like.

[0007]

However, in the above-mentioned prior art, since the adjusting block is large and is fastened by a plurality of bolts, the mounting space becomes large, and the rope end is attached to the upper part of the car and the rope. In an elevator that is connected to the upper part of the counterweight and is roping, it is difficult to secure a mounting space for the elevator.

Further, since the plurality of bolts are fastened, it is necessary to attach and detach all of the plurality of bolts when adjusting the length of the rope, resulting in a problem that the adjusting work efficiency is very poor.

The present invention has been made in view of the above problems, and an object thereof is to provide an elevator having a rope end portion connected to an upper portion of a car and an upper portion of a counterweight with a simple structure, An object of the present invention is to provide a main rope elongation adjusting device for an elevator that can perform work quickly.

[0010]

In order to achieve the above object, the present invention connects one end of a main rope to the upper part of a car and the other end to a balancing sheave by winding a sheave and rotating the sheave. In an elevator main rope extension adjusting device that raises and lowers the car by driving, in the upper part of the car, or in the connection part with the main rope on the upper part of the counterweight, connected by at least two removable pins, It is characterized in that an inclusion is provided to shorten the length of the main rope between the riding cage and the counterweight according to the removal.

[0011]

In the present invention, because of the above-mentioned structure, the main rope elongation adjusting device for the elevator can be installed in a simple structure which can be installed even in an elevator having a connecting portion with the main rope at the upper part of the car and the upper part of the counterweight. Moreover, the work efficiency of the main rope length adjustment work can be improved.

[0012]

An embodiment of the present invention will be described below with reference to the drawings.

First, the overall structure of the present invention will be described with reference to FIG. FIG. 4 is an overall configuration diagram of the elevator.

Reference numeral 1 denotes a main rope. This main rope 1 has a socket 4 and a rope length adjusting joint rod 5, a thimble rod 6, and a spring 7 as inclusions on a car frame 3 located at an upper end of a car 2. Are connected via.

The other end of the main rope 1 has a machine room 12
The sheave 8 and the warp wheel 9 provided inside are wound to form a counterweight frame 11 for storing a counterweight 10,
Similar to the above, the socket 4a and the rope length adjusting joint rod 5a, the thimble rod 6a, and the spring 7a are connected as an interposition. Here the spring 7, 7a
Are held so as to abut on the upper surface of the car frame 3 and the counterweight frame 11, respectively, and on the lower surface of the nuts 13 and 13a screwed to the lower portions of the thimble rods 6 and 6a, mainly from the main rope 1. Is absorbing the vibration of.

The elevator thus constructed moves up and down in the hoistway 14 by driving the sheave 8 with a motor (not shown).

Next, details of the rope length adjusting joint rod, which is an embodiment of the present invention, will be described with reference to FIGS. 1 to 3.

FIG. 1 shows an embodiment of a main rope elongation adjusting device for an elevator according to the present invention, and is a front view showing a state in which the adjusting device is attached to a connecting portion between a counterweight and a main rope 1, and FIG. FIG. 3 is an enlarged perspective view showing a connecting portion between the counterweight frame and the main rope 1, and FIG. 3 is an enlarged perspective view of the adjusting device in FIG. 1.

Although the three main ropes 1 are connected to the counterweight frame 11 in FIG. 1, the central one is rotated 90 degrees to prevent contact with the main ropes 1 on both sides.
A little position is provided at the top.

First, the main rope 1 is attached to the socket 4a, and the main rope elongation adjusting device,
For example, the rope length adjusting joint rod 5a is fitted, and the pin 14 is inserted into the hole provided in both, so that both are connected and held.

Similarly, this rope length adjusting joint rod 5
A thimble rod 6a is fitted in a, and a pin 14 is inserted into a hole provided in both to hold the two together.

The thimble rod 6a is arranged so as to penetrate through the counterweight frame 11, and the nut 1 is provided at the end thereof.
3a is screwed. A spring 7a is arranged between the nut 13a and the weight frame 11. As described above, the main rope 1 is connected to the lower surface of the counterweight frame 11 so as to support the load.

The main rope 1 is also connected to the car frame 3 in the same manner.

Thus, the new main rope is
Alternatively, the counterweight and the car are connected at the time of replacement, but if the elongation described in the prior art occurs here, the length adjustment work is required.

The main rope length adjusting work will be described below with reference to FIGS. 2 and 3.

First, the pins 14 holding the rope length adjusting joint rod 5a connected to the socket 4a and the thimble rod 6a, respectively, are pulled out.

Then, this rope length adjusting joint rod 5
Remove a. Next, the upper portion of the thimble rod 6a is fitted into the lower portion of the socket 4a, and the pin 14 is again inserted into the holes provided in both ends, whereby the rope length adjusting work is completed.

In the present embodiment, the connecting portion on the counterweight side has been described as an example, but the rope length adjusting operation can be similarly performed on the connecting portion on the car side.

Thus, according to this embodiment, by removing the rope length adjusting joint rod 5a, the same effect as shortening the rope by the length can be obtained. In addition, the structure does not require an installation space because the rope length adjusting joint rod 5a is connected and held only by two pins at the top and bottom.
The work efficiency can be made very good because the pin 14 only needs to be inserted and removed.

Therefore, the installation space is limited and the work is difficult. The elevator main rope elongation adjusting device of the present invention can be effectively applied to an elevator in which both ends of the main rope 1 are connected to the upper part of the car and the upper part of the counterweight.

[0031]

Since the present invention is configured as described above,
It is possible to make the main rope elongation adjusting device of the elevator simple in construction and to make the adjustment work favorable.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a main rope elongation adjusting device for an elevator according to the present invention, showing a state in which the adjusting device is attached to a connecting portion between a counterweight and a main rope.

FIG. 2 is an enlarged perspective view showing a connecting portion between a counterweight frame and a main rope.

3 is an enlarged perspective view of the adjusting device of FIG. 1. FIG.

FIG. 4 is an overall configuration diagram of an elevator.

[Explanation of symbols]

 1 Main rope 2 Car 3 Car cage frame 4 4a Socket 5 5a Rope length adjustment joint rod 6 6a Thimble rod 10 Balancing weight 11 Balancing weight frame 14 pins

Claims (1)

[Claims] 1. A main rope extension adjustment for an elevator, wherein one end of a main rope is connected to an upper part of a car and the other end is connected to an upper part of a counterweight by winding a sheave, and the sheave is rotated to drive the car up and down. In the device, at least two detachable pins are connected to the upper rope of the car or the connecting portion with the main rope on the upper part of the balance weight, and between the cage and the balance weight depending on the connection. An elevator main rope extension adjusting device characterized by being provided with an inclusion that shortens the length of the main rope.