JPH04341476A - Pulling up device for governor rope for elevator - Google Patents

Abstract

PURPOSE:To provide a pulling-up device for a governor rope for an elevator which can pull up the governor rope safely, easily and in a short time, which can be easily set and removed, and whose kinds may be a few irrespective of kinds of governor rope diameters. CONSTITUTION:Holding fixtures are arranged on the cage 4 side of a governor pulley 1a to hold and fix a governor rope 2 of the cage 4 side. An oil pressure jack composed of a movable member 7 and an oil pressure pump 8 is provided on the side opposite to the cage 4 of the governor pulley 1a. The governor rope 2 on the side opposite to the cage 4 is held by a rope grip 6 formed individually, separately from the oil pressure jack. The oil pressure pump 8 of the oil pressure jack is operated to push the rope grip 6 with the movable member 7 so as to pull up the governor rope 2.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for pulling up a governor rope for an elevator, and more particularly to an improvement in a device used to pull up a governor rope in an operation test of an elevator governor.

0002

2. Description of the Related Art As a conventional pulling device for a governor rope for an elevator of this type, there is a technique disclosed in Japanese Utility Model Application Publication No. 123569/1983.

FIG. 5 is a perspective view of a conventional elevator governor rope pulling device.

In the figure, 1a is a governor pulley, 1b is a governor stand that rotatably supports the governor pulley 1a,
2 is a governor rope wrapped around the governor pulley 1a. Further, although not shown, the governor rope 2 is also wound around a governor weight pulley in a pit at the bottom of the hoistway, and travels in synchronization with the raising and lowering of the car to rotationally drive the governor pulley 1a. Further, 11 is a holder provided on both sides of the governor rope 2 for gripping and fixing the governor rope 2, 11a is a rope clip that is bolted to grip and fixing the governor rope, and 11b is a rope clip 1 for holding and fixing the governor rope.
1a, the rope clip 11a is integrally assembled with the rope clip 11a.
This is a screw-type jack member that pulls up the governor rope 2 on the opposite side of the car.

In the conventional elevator governor rope pulling device constructed as described above, the rope clip 11a integrally assembled with the jack member 11b is lifted upward by turning the screw 11c of the jack member 11b, and the rope is pulled up. The governor rope 2 held and fixed to the clip 11a is lifted up and separated from the governor pulley 1a. As a result, the governor pulley 1a is disengaged from the governor rope 2 and can be rotated independently, and the governor is subjected to an operation test.

[0006]

[Problems to be Solved by the Invention] As described above, the conventional elevator governor rope pulling device is configured to pull up the governor rope 2 by turning the screw 11c of the jack member 11b. The governor rope 2 is lifted by only one pitch of the screw 11c per rotation, and it is necessary to rotate the screw 11c a considerable number of times in order to lift the governor rope 2 until it is completely disengaged from the governor pulley 1a and released from its engagement. It took a considerable amount of time to pull up the governor rope 2. Moreover, the conventional elevator governor rope pulling device has a configuration in which one governor rope 2 is pulled up using two screws 11c provided on the left and right sides of the governor rope, so each screw 11c is rotated evenly on the left and right to pull the governor rope 2. It is not easy to do so. As the lift stroke of the elevator becomes longer, the weight of the governor rope 2 and the weight of the governor weight pulley increase, so it takes a lot of effort to pull up the governor rope 2 from the governor pulley 1a, and it takes a long time to pull it up. Further increase.

Furthermore, when pulling up the governor rope 2, it is necessary to change the diameter of the rope clip 11a in accordance with the change in the diameter of the governor rope 2. Since the rope clip 11a to be fixed and the jack member 11b using the screw 11c are integrally assembled, it is necessary to prepare a type of lifting device corresponding to the type of diameter of the governor rope 2, which reduces cost. There is room for improvement. Also, a rope clip 11a that grips the governor rope 2
Since the jack member 11b using the screw 11c is integrated, the entire lifting device must be moved and installed as one unit, which makes handling inconvenient, and in particular, it is difficult to install multiple units in parallel. When testing the operation of a governor in a high-speed elevator where there are many cases, preparation and cleanup for the governor operation test are troublesome.

Therefore, the present invention makes it possible to pull up the governor rope safely, easily, and in a short time, and moreover, the number of types of governor ropes can be reduced regardless of the diameter of the governor rope, and the preparation and cleanup are easy. An object of the present invention is to provide a pulling device for a governor rope for an elevator, which can easily carry out the above operations.

[0009]

[Means for Solving the Problems] A pulling device for a governor rope for an elevator according to the invention of claim 1 is provided with a fixing holder disposed on the car side of the governor pulley for gripping and fixing the governor rope on the car side, and a fixing holder for gripping and fixing the governor rope on the car side. A movable means equipped with a hydraulic jack is arranged on the opposite side of the car to grasp and pull up the governor rope on the opposite side of the car. In the elevator governor rope pulling device according to the invention of claim 2, a fixing holder for gripping and fixing the governor rope on the car side is disposed on the car side of the governor pulley, and a fixing holder for gripping and fixing the governor rope on the car side is arranged on the opposite side of the governor pulley from the car. A movable means is provided, which includes a rope clip that grips the side governor rope, and a hydraulic jack that is arranged separately from the rope clip and presses the rope clip upward to pull up the governor rope. .

0010

[Operation] In the invention as claimed in claim 1, the fixed holder grips the car side of the governor rope and holds and fixes it in a fixed position, and the movable means grips the side of the governor rope opposite to the car and lifts it upward using the hydraulic jack. With the simple operation of a hydraulic jack, the governor rope can be safely, easily, and quickly lifted up and removed from the governor pulley, allowing the governor to be used for operational tests.

In the invention of claim 2, the fixed holder grips the cage side of the governor rope to hold and fix it in a fixed position, and the rope clip of the movable means grips the opposite side of the governor rope to the cage, and Since the hydraulic jack of the movable means pulls the governor rope upwards, the governor rope can be safely, easily and easily removed from the governor pulley with the simple operation of the hydraulic jack alone.
In addition, the governor can be lifted up and removed in a short period of time, and the governor can be subjected to an operation test. In addition, since the movable means, the rope clip and the hydraulic jack, are configured separately, it is only necessary to change and prepare the rope clip depending on the type of governor rope, and there is no need to increase the number of types of the entire device. Therefore, the number of types of devices can be reduced, and since the rope clip and the hydraulic jack can be handled separately, preparation and cleanup for the governor operation test can be easily performed.

0012

[Examples] Examples of the present invention will be described below.

FIG. 1 is a front view schematically showing a hoistway to which an elevator governor rope pulling device according to an embodiment of the present invention is applied, and FIG. FIG. 3 is an enlarged rear view showing the state in which it is attached to the governor; FIG. 3 is an enlarged rear view showing the operation of the movable member of the elevator governor rope pulling device according to an embodiment of the present invention; FIG.
FIG. 2 is an enlarged perspective view of a movable member of a pulling device for an elevator governor rope according to an embodiment of the present invention.

[0014] In the drawings, the same reference numerals and symbols as those in the conventional example indicate the same or corresponding parts as those in the conventional example, and therefore, redundant explanation will be omitted here.

In the figure, reference numeral 1 denotes a governor installed in a machine room located at the upper part of the hoistway, and as in the past, a governor rope 2 is connected to a governor pulley 1a supported on a governor stand 1b.
is wrapped around it. 3 is a governor weight pulley installed in a pit at the bottom of the hoistway and around which the governor rope 2 is wound, 4 is a cage, 5 is a fastening member, and one end of the governor rope 2 is connected to the governor weight pulley 3 from below. After being wrapped, the governor rope 2 is connected to one end of the fastening member 5, and the other end of the governor rope 2 is connected to the governor pulley 1.
After being wrapped around a from above, it is connected to the other end of the fastening member 5. That is, the governor rope 2 has its upper part wrapped around the governor pulley 1a, its lower part wrapped around the governor weight pulley 3, and its both ends connected to the car 4 via the fastening device 5.

Further, in the elevator governor rope pulling device of this embodiment, reference numeral 6 denotes a rope clip that can hold the governor rope 2 on the opposite side of the car 4 without being displaced by tightening bolts 6a, and 7 denotes the rope clip. A movable member 8 is formed separately from the movable member 7 and placed on the opposite side of the cage 4 of the governor stand 1b and located below the rope clip 6. Foot-operated hydraulic pump, 9 is governor stand 1b
This is a fixed holder that is placed on the car 4 side and grips the governor rope 2 on the car 4 side and holds and fixes it in a fixed position by tightening the bolt 9a.

In the movable member 7, 7a is a hydraulic cylinder, 7b is an adapter disposed at the lower back of the hydraulic cylinder 7a and connected to the hydraulic pump 8;
Reference numeral c indicates a support stand attached to the upper part of the hydraulic cylinder 7a, 7d indicates a support rod to prevent the hydraulic cylinder 7a from collapsing and is attached to the support stand 7c at a position opposite to the hydraulic cylinder 7a via the governor rope 2, and 7e indicates the support stand attached to the upper part of the hydraulic cylinder 7a. Hydraulic cylinder 7a
A plunger that can be retracted from the inside, 7f is the plunger 7e.
This is a rope clip stand fixed to the upper end of the rope clip 6 on which the rope clip 6 can be placed and supported. Note that the movable member 7 and the hydraulic pump 8 constitute a hydraulic jack, and
The hydraulic jack and rope clip 6 constitute movable means for gripping and pulling up the side of the governor rope 2 opposite to the car 4.

Next, a method for pulling up a governor rope using the elevator governor rope pulling device of this embodiment constructed as described above will be explained.

To pull up the governor rope 2 for the elevator, first, the fixed holder 9 is placed on the governor stand 1b on the side of the car 4, and the governor rope 2 wound around the governor pulley 1a is pulled up.
A fixed holder 9 is attached to the upper part of the governor rope 2 on the car 4 side, and the bolt 9a is tightened to firmly grip and hold the governor rope 2 on the car 4 side with the fixed holder 9 to prevent its movement. do. Next, the rope clip 6 is attached to the upper part of the governor rope 2 on the side opposite to the car 4, and the bolt 6a is tightened to firmly grip the governor rope 2 and fix the rope clip 6 to the governor rope 2 so that it cannot be displaced. Then, the movable device 7 is disposed below the rope clip 6 on the side opposite to the car 4 and placed on the governor stand 1b, and the rope clip 6 is placed and supported on the rope clip stand 7f of the movable device 7. In addition,
The hydraulic pump 8 is arranged near and connected to the movable device 7.

At this time, since a hydraulic pump 8 is connected to the hydraulic cylinder 7a of the movable device 7 via an adapter 7b, the hydraulic pump 8 is stepped on to appropriately supply hydraulic fluid into the hydraulic cylinder 7a. By feeding the amount, the plunger 7e protrudes from the hydraulic cylinder 7a. Then, as the plunger 7e protrudes, the rope clip stand 7f fixed to the upper end of the plunger 7e is moved to the governor rope 2.
The gripping rope clip 6 is pushed up, the governor rope 2 is lifted up and separated from the groove (not shown) of the governor pulley 1a, and the engagement between the governor rope 2 and the governor pulley 1a is released. Thereby, the governor pulley 1a becomes independently rotatable, and the governor 1 is subjected to an operation test.

[0021] At this time, the total weight of the governor rope 2 and the governor weight pulley 3, which increases in weight as the lifting stroke becomes longer, is applied to the rope clip 6 that grips the governor rope 2, and the rope clip 6 and the hydraulic cylinder 7a are Due to the misalignment, the movable device 7 supporting the rope clip 6 tends to fall toward the governor rope 2 using the lower end of the hydraulic cylinder 7a as a fulcrum. However, at the support stand 7c above the hydraulic cylinder 7a, the governor rope 2
A support rod 7d is attached to a position on the opposite side of the hydraulic cylinder 7a to prevent the movable member 7 from falling. 7 will not fall to the side of the governor rope 2 and will not interfere with the work of pulling up the governor rope 2.

As described above, the elevator governor rope pulling device of the above embodiment has a fixing holder disposed on the car 4 side of the governor pulley 1a, grips and fixes the governor rope 2 on the car 4 side, and lifts the governor rope 2 of the governor pulley 1a. A hydraulic jack consisting of a movable member 7 and a hydraulic pump 8 is arranged on the side opposite to the car 4, and a governor rope 2 on the opposite side to the car 4 is arranged.
The governor rope 2 is gripped by a rope clip 6 formed separately from the hydraulic jack, and the hydraulic pump 8 of the hydraulic jack is operated to press the rope clip 6 upward by the movable member 7. It was designed to be pulled up.

Therefore, in the above embodiment, the fixed holder 9 grips the cage 4 side of the governor rope 2 to hold and fix it in a fixed position, and the rope clip 6 grips the side of the governor rope 2 opposite to the cage 4. , and since the movable device 7 pushes up the rope clip 6 to pull up the governor rope 2, the governor rope 2 can be safely and easily removed from the governor pulley 1a by simply stepping on the hydraulic pump 8.
The governor 1 can be lifted up and removed in a short period of time, and the governor 1 can be subjected to an operation test. Further, since the rope clip 6 as the movable means, the movable device 7 of the hydraulic jack, and the hydraulic pump 8 are configured separately, it is only necessary to change the type of the rope clip 6 and prepare it according to the type of governor rope 2. Since there is no need to increase the types of lifting devices as a whole, the number of types of lifting devices can be reduced, and since the rope clip 6 and the hydraulic jack can be handled separately, the operation of the governor 1 can be improved. Preparation and cleanup for the exam can be done easily.

By the way, in the movable means of the above embodiment, the rope clip 6, the movable device 7 and the hydraulic pump 8 constituting the hydraulic jack are formed separately, but when carrying out the present invention, However, the present invention is not limited to this, and any mechanism may be used as long as it functions as a movable means for grasping the governor rope 2 and pulling it up by operating a hydraulic jack. For example, it is also possible to integrally attach the rope clip 6 to the movable device 7, and in this case as well, the governor rope 2 can be pulled up safely, easily, and in a short time with a simple operation using only a hydraulic jack. can. However, when the rope clip 6 and the hydraulic jack are implemented separately, the effect that the handling of the entire device becomes easier can be obtained.

Furthermore, although the hydraulic jack of the above embodiment is composed of a movable device 7 and a foot-operated hydraulic pump 8, when carrying out the present invention, the present invention is not limited to this. It is sufficient if the governor rope 2 can be pulled up by the pump, and for example, the hydraulic pump 8 can be changed to an electric type.

[0026]

As described above, in the elevator governor rope pulling device according to the first aspect of the invention, a fixing holder is disposed on the car side of the governor pulley for gripping and fixing the governor rope on the car side, and A movable means equipped with a hydraulic jack is placed on the opposite side of the car to grip and pull up the governor rope on the opposite side of the car, so the fixed holder grips the car side of the governor rope and holds it in place. In addition to holding and fixing the governor rope, the movable means grasps the opposite side of the governor rope and uses the hydraulic jack to pull it upwards. Therefore, the governor rope can be safely, easily, and quickly removed from the governor pulley by simple operation using only the hydraulic jack. The governor can be lifted up and removed to test its operation.

Further, in the elevator governor rope pulling device according to the second aspect of the invention, a fixing holder for gripping and fixing the governor rope on the car side is arranged on the car side of the governor pulley, and a fixing holder is arranged on the side of the governor pulley opposite to the car. ,
A movable means is provided that includes a rope clip that grips a governor rope on the opposite side of the car, and a hydraulic jack that is arranged separately from the rope clip and that presses the rope clip upward to pull up the governor rope. Therefore, the fixed holder grips the car side of the governor rope to hold and fix it in a fixed position, and the rope clip of the movable means grips the opposite side of the governor rope to the car, and the hydraulic jack of the movable means The governor rope can be safely, easily, and quickly lifted up and removed from the governor pulley with a simple operation using only a hydraulic jack, allowing the governor to be used for operational tests. In addition, since the movable means, the rope clip and the hydraulic jack, are configured separately, it is only necessary to change and prepare the rope clip depending on the type of governor rope, and there is no need to increase the number of types of the entire device. For,
Since the types of devices can be reduced and the rope clip and hydraulic jack can be handled separately, preparation and cleanup for the governor operation test can be easily performed.

[Brief explanation of drawings]

FIG. 1 is a front view schematically showing a hoistway to which an elevator governor rope pulling device according to an embodiment of the present invention is applied.

FIG. 2 is an enlarged rear view showing a state in which an elevator governor rope pulling device according to an embodiment of the present invention is attached to a governor.

FIG. 3 is an enlarged rear view showing the operation of the movable member of the elevator governor rope pulling device according to one embodiment of the present invention.

FIG. 4 is an enlarged perspective view of a movable member of a pulling device for an elevator governor rope according to an embodiment of the present invention.

FIG. 5 is a perspective view of a conventional elevator governor rope pulling device.

[Explanation of symbols]

1a Governor pulley 2 Governor rope 4 Cart 6 Rope clip 7 Movable member (hydraulic jack) 8
Hydraulic pump (hydraulic jack) 9 Fixed holder

Claims (2)

[Claims] Claim 1: A fixed holder disposed on the car side of the governor pulley to grip and fix the governor rope on the car side, and a hydraulic jack disposed on the opposite side of the governor pulley to the car to grasp and pull up the governor rope on the opposite side to the car. 1. A pulling device for a governor rope for an elevator, comprising a movable means. 2. A fixed holder disposed on the car side of the governor pulley to grip and fix the governor rope on the car side; a rope clip disposed on the opposite side of the governor pulley to the car side to grip the governor rope on the opposite side; and the rope. 1. A governor rope pulling device for an elevator, comprising a movable means including a hydraulic jack that is arranged separately from the clip and that presses the rope clip upward to pull up the governor rope.