JP2600522B2 - Governor pulley rotating device for elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator governor pulley rotating device for performing an operation test of an elevator governor.

[0002]

2. Description of the Related Art In order to rotate a governor pulley for an operation test of a governor for an elevator, conventionally, a rubber roller attached to a motor is brought into contact with an outer peripheral portion of the governor pulley, and the contact friction causes the governor pulley to reach a governor operating speed. Was turning up.

FIGS. 8 and 9 show a part of the technique disclosed in Japanese Patent Application Laid-Open No. Sho 56-148061, in which a rubber roller 12 fixed to the tip of a motor shaft is brought into contact with the outer periphery of a governor pulley 1a. , To rotate the governor pulley 1a.

[0004]

Since the conventional governor pulley rotation method is as described above, the higher the governor operating speed, the more the pressing force for transmitting the rotational force of the motor is required. If labor is required, and if the pressing force is not stable, an accurate operating speed cannot be obtained due to fluctuations in the rotational speed, and the rubber roller may be detached from the outer peripheral portion of the governor pulley.

Further, since the rubber roller is brought into direct contact with the outer peripheral portion of the governor pulley, it is necessary to remove the governor pulley cover provided for safety in each operation test.
There was a problem that it took time to clean up.

Further, in the conventional governor pulley rotation method, the higher the governor operating speed, the higher the rotational speed of the motor or the larger the diameter of the rubber roller and the higher the output of the motor. It becomes large and requires a great deal of labor to carry it to the site and hold it during testing.

The present invention has been made to solve such a problem. By connecting the motor to a shaft that is on an extension of the pendulum shaft, the motor can be miniaturized, and it is safe, easy, and accurate. An object of the present invention is to provide an elevator governor pulley rotating device that can be performed in a short time.

[0008]

In order to achieve the above object, an elevator governor pulley rotating device according to the present invention, in an elevator governor, is concentric with a pendulum shaft from a pendulum shaft holder fixed to a pendulum support. The driven shaft protrudes from the pendulum shaft, or an extension of the pendulum shaft is provided above the pendulum support, and with the governor rope removed, the drive shaft of the motor that raises the rotation of the governor pulley to the operating speed with the driven shaft or It is configured to be connected to the extension part.

[0009]

The rotation device of the governor pulley for an elevator according to the present invention transmits the rotation of the motor directly to the pendulum shaft by connecting the motor to a shaft which is an extension of the pendulum shaft, thereby reducing the size of the motor. As a result, an angle drill can be used, and an accurate operating speed can be reliably obtained.

[0010]

1 is a schematic view of a hoistway of an elevator to which the present invention is applied, FIG. 2 is an enlarged side view of the governor of FIG. 1, and FIG. 3 is a vertical front view of the governor of FIG. 4 is an enlarged perspective view of the upper part of the governor of FIG. FIG. 5 is a perspective view of the angle drill, and FIG. 6 is a front view of the pendulum shaft holder.

1 and 2, reference numeral 1 denotes a governor, which includes a governor pulley 1a, a governor stand 1b, a pendulum 1c, and the like. A governor rope 2 is wound around the governor pulley 1a. Reference numeral 3 denotes a governor weight pulley, which is installed in a pit and has a governor rope 2 wound therearound. 4 is a car and 5 is a fastening device. One end of the governor rope 2 is connected to one end of the fastening device 5 after being wound around a governor weight pulley, and the other end is wound around the governor pulley 1a. To the other end. Thus, the governor rope 2 is wrapped around the governor pulley 1a, and the lower part is wrapped around the governor weight pulley 3,
Both ends are connected to the car 4 via a fastening device 5.

In the governor 1, reference numeral 6 denotes a rope clip, which is attached above the governor rope 2 on the opposite side of the car 4. A movable device 7 holds the rope clip 6 and is fixed on the governor table 1b. Reference numeral 8 denotes a hydraulic pump which is connected to the movable device 7 and serves to lift up the rope clip 6. Reference numeral 9 denotes a fixing holder, which holds the governor rope 2 on the car side. Reference numeral 10 denotes a pendulum shaft holder, which will be described later, and reference numeral 11 denotes an angle drill, which serves as a drive source for a governor pulley.

In FIG. 3, reference numeral 1d denotes a pendulum support which supports the pendulum 1c. 1e is a pendulum shaft, and a pendulum support 1d
Is attached to the top. Reference numeral 1f denotes a pendulum-side gear attached to a lower portion of the pendulum shaft 1e. 1g is a pulley side gear, which meshes with a pendulum side gear 1f. 1h is a pulley shaft. In this way, the governor rope 2 running in synchronization with the car 4 rotates the governor pulley 1a,
The rotation is transmitted from the pulley-side gear 1g to the pendulum-side gear 1f to rotate the pendulum shaft 1e. Due to the rotation of the pendulum shaft 1e, the pendulum 1c opens in the horizontal direction by centrifugal force according to the speed, and activates the safety device at a certain point.

4 and 5, reference numeral 10b denotes a horizontal piece fixed on the pendulum support 1d, and has a driven shaft 10a projecting concentrically with the pendulum shaft at the center. 10c and 10d are a pair of vertical pieces, and horizontal pieces 10b on both sides of the pendulum support 1d.
It is vertically installed below. Reference numeral 10e denotes a stopper, which is provided on both sides of the pendulum shaft 1e, through which the vertical piece 10d is inserted.
0c. Reference numeral 10f denotes a pair of adjustment fixing bolts which are capable of moving inward and backward while being screwed to the vertical pieces 10c and 10d, and the tips of which contact the pendulum supports 1d and 1d.

Next, the operation and operation of the above embodiment will be described. The governor rope 2 is gripped by the cage-side fixing holder 9 of the governor rope 2, and the rope clip 6 that grasps the governor rope 2 located at least on the opposite side to the car side is lifted up by the movable device 7, and the governor rope 2 is separated from the governor pulley 1 a. Let it rise.

Next, the pendulum shaft holder 1 is attached to the pendulum support 1d.
When attaching 0, the stopper 10e is screwed in, and the centering adjustment is performed and fixed by moving the adjustment fixing bolt 10f forward and backward.

Then, the test is performed by connecting the motor drive shaft and the driven shaft 10a by the chuck 11a provided on the motor drive shaft of the angle drill 11, rotating the pendulum shaft 1e up to the governor operating speed. Since the height of the angle drill 11 in the direction of the rotation axis is lower than that of a commonly used electric drill, the test can be performed without any trouble even in the second machine room where the height is low.

FIG. 7 shows a second embodiment in which a pendulum shaft extension 13 is provided above a pendulum support 1d, and a motor drive shaft is connected to the extension 13 by a chuck 11a. In this way, even if there is no pendulum shaft holder, the first
The same operation and effect as the embodiment can be obtained.

[0020]

As described above, according to the present invention, in a governor for an elevator, a driven shaft projects concentrically with a pendulum shaft from a pendulum shaft holder fixed to a pendulum support, and a governor rope is removed. Since the drive shaft of the motor for increasing the rotation of the governor pulley up to the operating speed is connected to the driven shaft, the motor can be reduced in size and an angle drill can be used. Accordingly, the test can be performed even in the second machine room where the governor rope terminal is installed at a low height, and the rotation of the governor pulley can be increased to the governor operating speed accurately and in a short time. If the pendulum support is provided with a stopper and an adjustment bolt, the pendulum support is safe and can be attached to a governor of another shape.

Further, according to the present invention, in the elevator governor, a pendulum shaft extending portion is provided above the pendulum support, and the drive shaft of the motor for increasing the rotation of the governor pulley to the operation speed with the governor rope removed is provided. Since the connection is made to the above-mentioned extension part, test setup and clearing are eliminated, and centering adjustment is not required, so that the test can be easily performed in a short time.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a hoistway cross section of an elevator according to an embodiment of the present invention.

FIG. 2 is an enlarged side view of the governor shown in FIG. 1;

FIG. 3 is a vertical sectional front view of the governor shown in FIG. 2;

FIG. 4 is an enlarged perspective view of the upper part of the governor of FIG. 2;

FIG. 5 is a perspective view of an angle drill.

FIG. 6 is a front view of a pendulum shaft holder.

FIG. 7 is an enlarged perspective view of an upper portion of a governor according to another embodiment of the present invention.

FIG. 8 is a perspective view of a conventional governor pulley rotating device.

FIG. 9 is a side view of a conventional governor pulley rotating device and governor pulley.

[Explanation of symbols]

 Reference Signs List 1 governor 1a governor pulley 1d pendulum support 1e pendulum shaft 2 governor rope 4 basket 7 movable unit 8 hydraulic pump 9 fixed holder 10 pendulum shaft holder 10a driven shaft 10b horizontal piece 10c vertical piece 10d vertical piece 10e locking bolt 10f 11 Angle Drill 12 Comb Roller 13 Extension 14 Motor Drive Shaft

Claims (2)

(57) [Claims] 1. The method according to claim 1, wherein a movement of the elevator car is changed to a rotation of a governor pulley, and a pendulum is provided on an upper part of a pendulum shaft for transmitting the rotation, and the pendulum operates according to the speed by centrifugal force. A motor that raises the governor pulley to the operating speed with the driven shaft protruding from the pendulum shaft holder fixed to the pendulum support and concentric with the pendulum shaft, with the governor rope removed. A drive shaft for the elevator governor pulley, wherein the drive shaft is connected to the driven shaft. 2. The method according to claim 1, wherein the movement of the elevator car is changed to the rotation of a governor pulley, and a pendulum is provided on an upper part of a pendulum shaft for transmitting the rotation. The pendulum operates according to the speed by centrifugal force. In the elevator governor for which the stopping device is operated, an extension portion of the pendulum shaft is provided above the pendulum support, and in a state where the governor rope is removed, the drive shaft of the motor that increases the rotation of the governor pulley to the operating speed is attached to the extension portion. A governor pulley rotating device for an elevator, wherein the rotating device is connected.