JP2554382Y2 - Wire rope changer - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire rope changing device used when a wire rope used for a crane or the like has reached the end of its useful life and is to be replaced with a new wire rope.

[0002]

2. Description of the Related Art As a conventional wire rope exchanging apparatus, for example, there is an apparatus constituted by a winding machine 103 for forming a winding bundle 102 of an old rope 101 shown in FIG. (60-72
No. 450). The winder 103 has a rotating table 107 rotatably supported on a frame 106 around a vertical axis.
And a guide 108 for feeding the old rope 101 on the turntable 107 in an inclined state. In this apparatus, a downward force due to the weight of the old rope 101 is converted into a tilting direction by a guide 108, and the old rope 101 is stacked in a bundle on the rotating table 107 while rotating with the force. The feeding machine 105 is a new rope 10
4 is to rotate the wooden frame 109 with a force to be lifted. Further, the same as the winder 103, a guide winder is used to form a winding bundle while the guide rotates in the reverse direction by the weight of the old rope (Japanese Utility Model Laid-Open No. 55-39990), and a rotating table ( (Rope take-up plate) driven by a motor (Japanese Utility Model Laid-Open No. 59-120760)
Is also known. Such an exchange device comprises a crane 11
The end of the new rope 104 is connected to the rear end side of the old rope 101 wound around the hoisting drum 111 such as 0, and the new rope is used while the old rope 101 is lowered from the hoisting drum 111 while being lifted. .

[0003]

The conventional wire rope exchanging apparatus (shown in FIG. 8) is simple because it does not use a power unit. However, the main frame around which the new rope is wound rotates by inertia and the wire rope runs away,
There is a problem that it is difficult to make an old rope into a beautiful bundle. In particular, the work of dropping an old rope by its own weight and smoothly winding it requires skill. This is the same even when the rotary table is driven by a motor.
An object of the present invention is to provide a wire rope exchanging device which can easily perform an unsteady operation of wire exchange and can be safely performed by anyone. It is another object of the present invention to provide a wire rope changing device that can easily perform a series of operations from preparation of a spare wire to disposal of an old wire. Another object of the present invention is to provide a wire rope exchanging device that can easily and smoothly unwind an old rope.

[0004]

The wire rope changing device according to the present invention comprises (a) a wire rope changing device having an old rope winding machine and a new rope unwinding machine, and (b) the old rope winding device. A first drum half provided with a flange rotatably provided on a frame, and a coaxially opposed first drum half provided with the first drum half, which is axially movable and rotatable relative to the frame. And (c) at least one of the first and second drum halves is provided with a rotation drive unit. In such an apparatus, the second drum half is provided on an upper portion of a support member so as to be axially fastened by a screw, and the support member is installed so as to run in an axial direction with respect to a frame. Are preferred. Further, it is preferable that a gap is formed from the first drum half to the second drum half, through which a wire rod for binding a bundle of old ropes wound thereon is formed. Such a gap can be constituted by a slit formed in the flange of the drum half, and a groove between ribs provided in the body of the drum body. It is preferable that the new rope feeding machine is provided with a brake means for preventing runaway of the new rope, and furthermore, the new rope feeding machine is provided with a pair of clamps for holding both ends of a frame around which the new rope is wound. It is preferable to have a gripper, and the grippers are independently and rotatably supported around a common rotation axis.

[0005]

When the rope is replaced, the second drum half is brought into contact with the first drum half, and the first and second drum halves are rotated by the rotation driving means. This allows the old rope to be wound tightly on the first and second drum halves.
The new rope is connected to the end of the old rope, and the new rope is pulled in by winding up the old rope. When all the old ropes have been wound, the new ropes are set as if the old ropes were attached. Then, after winding the old rope around the first drum half and the second drum half, the winding bundle is bundled with a steel wire or the like. Then put the second half of the drum in the first
Move away from the drum half and remove the old rope wrap. The leading and trailing ends of the new rope are connected to the upper winding drum of the crane. As described above, in the replacement device of the present invention, the old rope is not wound up while being arranged in an annular shape by the force of sliding down due to its own weight, but is tightly wound on a drum composed of two half drums,
The wire rope can be exchanged easily and smoothly. According to the device of the second aspect, the second drum half can be firmly abutted on the first drum half with a screw after being moved in the axial direction, so that the tip of the old rope is sandwiched between both drum halves. It can be retained and the old rope can be easily removed. In the replacement device according to claims 3 and 4, since there is a gap through which the wire is passed through the old rope winding machine, the wire that binds the bundle after the old rope has been wound can be easily passed. In the apparatus according to claims 5 and 6, since the new rope feeding machine has a pair of grippers for holding both ends of the frame, the frame of the purchased new rope can be easily attached. Further, with the provision of the brake means, the escape of the new rope can be prevented, so that the winding speed of the old rope can be increased.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a wire rope changing device according to the present invention; 1 and 2 are a perspective view and a plan view, respectively, showing one embodiment of the device of the present invention.
4 and FIG. 4 are arrows XX and Y of FIG. 2, respectively.
FIG. 5 is a cross-sectional view taken along line ZZ of FIG. 2. FIG. 6 is a schematic diagram of a brake unit, and FIG.
FIG. 4 is a schematic view showing a procedure of rope replacement. The wire rope changing device A shown in FIGS. 1 and 2 has an old rope winding machine 1 and a new rope unwinding machine 2 installed on one frame 3. A first support 4 is erected on the frame 3,
The motor M and the speed reducer G are attached to the upper end. The first drum half 6 is attached to the output shaft 5 of the speed reducer G. As shown in FIG. 5, the first drum half includes a cylindrical body 7, a spoke 8 extending radially outward from a base end thereof, and a peripheral member 9 formed of an annular pipe connecting the outer peripheral ends of the spokes 8. have. The spokes 8 and the peripheral member 9 constitute a flange F. Also each spoke 8
A slit S is formed therebetween. As shown in FIGS. 2 and 5, plate-shaped ribs 10 are arranged on the surface of the body portion 7 in a substantially radial manner so that an old rope can be wound therearound. In the apparatus A of the embodiment, as shown in FIG. 5, the rib 10 is composed of four blocks, each of which is a combination of plate materials such as "Y" of katakana characters, and is arranged with a gap (groove) 11 therebetween.

[0007] As shown in FIGS.
It has a structure in which the I-beams 12, 13, 27, and 28 are arranged in parallel and connected by a cross member 14. The inside of the I-shaped steels 12, 13 on the left side of FIG. 2 constitutes a pair of rails 15 (see FIG. 3), on which a bogie 17 having four wheels 16 can travel back and forth. Trolley 1
7 at the rear end thereof so as to face the first support 4.
A support base 18 is provided upright, and a female screw member 19 is attached to an upper portion of the second support base 18. A screw shaft 20 is screwed into the female screw member 19, and the screw shaft 2
A second drum half 21 having the same shape as the first drum half 6 is rotatably supported at the front end of the first half. A handle 22 for screwing is attached to the rear end of the second drum half 21. The first drum half 6 and the second drum half 21 are arranged concentrically. Therefore, the cart 17 is pointed by the arrow B
Alternatively, when the drum halves 6 are moved back and forth as indicated by a dashed arrow C, the drum halves 6 and 21 can be largely moved to abut or separate from each other. Can be. Reference numeral 24 in FIG. 2 is a control panel. Drum halves 6, 21
Is formed with a semicircular notch 25 which becomes one circle when combined. These notches 25 are for holding the tip of the old rope.

Next, the feeder 2 for a new rope will be described with reference to FIGS. A pair of two first supports 29 along the centers of the remaining I-beams 27 and 28 of the frame 3
And a second support table 30. Fixed side first
The support base 29 is erected directly on the frame, and the second support base 30 on the moving side is a carriage 31 similar to that of the winder 1.
Standing on top of. The carriage 31 runs on four rails 32 on a rail made of the I-shaped steel 28. At the stop position, both of the carts 17 and 31 are fixed with a locating pin or the like penetrating the cart and the frame 3. As shown in FIG. 4, a female screw 3 is provided above the second support 30 on the moving side.
2 is attached, and a holding member or holding member 36 for holding a wooden frame 35 around which a new rope 34 is wound is rotatably attached to a front end of a screw shaft 33 screwed into the female screw 32. A handle 37 for screwing is fixed to the rear end.

A shaft 3 is provided at the upper end of the first support base 29 on the fixed side.
8 is rotatably supported by a bearing 39. Axis 3
A gripping member 40 that is paired with the gripping member 36 of the second support table 30 on the moving side is attached to the front end of 8, and a brake unit D is attached to the rear end. As shown in FIG. 6, the brake unit D includes a weight roll 50 provided in contact with the new rope 34, and a weight roll 50.
And a cylinder 51 for transmitting the vertical position of the cylinder to the friction brake 41. In the state where the new rope 34 is stretched (the state where the winding is applied with a constant back tension), the position of the weight roll is in the state shown by the solid line and the cylinder 5
1 is located at the top, and no signal is sent to the friction brake 41 and the brake is loose. When the winding is stopped, the new rope 34 is loosened (the back tension is not applied), the position of the weight roll 50 is in the state shown by the imaginary line 53, the cylinder 51 is located at the lower part, and the friction brake 4
A signal is sent to 1 to activate the brake. Therefore, the wooden frame 35
Is stopped, and escape of the new rope 34 is prevented.

Next, the method of use and operation of the wire rope exchanging apparatus A configured as described above will be described with reference to FIGS. 3, 4 and 6. FIG. The above wire rope changing device A
Is basically used as in the prior art. That is, first, the carriage 31 of the feeding machine 2 is fixed at an appropriate position, the wooden frame 35 is installed between the gripping members 36 and 40, and the handle 37 is turned to clamp the wooden frame 35 between the gripping members 36 and 40. . Next, the tip of the new rope 34 is connected to the rear end of the old rope 42 separated from the hoist drum 60 such as the crane K. Further, by operating the handle 22 shown in FIG. 3, a gap is provided between the tips of the drum halves 6 and 22, and the tip of the old rope 42 is sandwiched between the semicircular notches 22. In this state, the motor M of the winding machine 1 is rotated and wound on one drum constituted by the two drum halves 6, 21. At that time, the old rope 42 is ribbed (FIG. 5).
(10), that is, on the end face of the plate material constituting the ribs. Since the new rope 34 has the tip connected to the old rope 42,
It is pulled by the old rope 42. When the rope exchange further proceeds, a new rope is stretched between the upper sheave 61 and the lower sheave 62. In this case, the lower sheave 62 is lowered to the ground. The wooden frame 35 around which the new rope 34 is wound
The friction brake 4
1, a braking force is constantly applied in a direction that hinders rotation. Therefore, the new rope 34 is wound while being given tension (back tension), so that the new rope 34 is stably wound, and furthermore, escape such as unwinding of the rope from the wooden frame 35 is prevented. The old rope 42 is almost wound around the winder 1, the rotation of the winder 1 is stopped just before the tip of the new rope 34 starts to be wound on the winder 1, and the old rope 42 and the new rope 34 Break the connection. Furthermore, the old rope 42 on the winding machine 1
Are bound by a steel wire or the like passing through a groove 11 between the slits S and the ribs 10 of the flanges of the two drum halves 6, 21. Then, the carriage 17 of the winding machine 1 is moved in the direction of arrow C to separate the integrated drum halves 6, 21 and the winding bundle is removed from the winding machine 1. At this time, if the end face of the outer periphery of the rib 10 is inclined so that the diameter on the center side becomes small, the winding of the winding bundle on the rib 10 becomes loose when the carriage 17 is moved in the direction of the arrow C to some extent. Rib 1
There is an advantage that it can be easily extracted from zero. Prior to moving the carriage 17, the second drum half 21 on the moving side loosens the bundle by operating the handle 22 to open the tip of the old rope. The empty wooden frame 35 from which the new rope 34 has been paid out may be removed from the holding members 36 and 40 by moving the cart 31 of the payout machine 2 or operating the handle 37.

As described above, the old rope 42 is firmly wound on the drum to be rotated while applying a tangential pulling force. Therefore, the old rope 42 is used to receive the old rope hanging from the rotary table as in the prior art. It is much more efficient than a machine and can be wound in a tightly aligned state. Further, since the new rope 34 is extended while applying the brake, runaway is prevented, and the burden on the operator is not small. That is, in the above exchange device A, the winding of the old rope and the unwinding of the new rope are performed under sufficient control of the winding speed and the force while applying tension, so that even an unskilled person can easily, and The rope replacement work can be performed skillfully, and the winding of old rope can be easily processed.

In the above embodiment, the winding machine and the unwinding machine are installed on one frame, but they may be installed on separate frames. Further, the rotation axes of the winding machine and the unwinding machine do not necessarily have to be parallel. When the size of the wooden frame in the axial direction is determined, the cart of the feeding machine is not required. If the size of the wooden frame in the axial direction is two or three, the position of the hole through which the locating pin for stopping the bogie may be determined according to the size. The gripping members 36 and 40 may be of an attachment type that can be replaced according to the type of wood.

[0013]

According to the wire rope changing device of the first and second aspects, the old rope can be wound up easily and relatively in a controlled state. In the apparatus according to the third and fourth aspects, it is easy to process a bundle of old ropes wound on a winder. In the device according to the fifth aspect, the frame around which the new rope is wound can be easily exchanged, and in the device according to the sixth aspect, it is possible to prevent runaway when the new rope is extended.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the device of the present invention.

FIG. 2 is a plan view of the apparatus of FIG.

FIG. 3 is a side view as viewed from an arrow XX in FIG. 2;

FIG. 4 is a side view as viewed from an arrow YY in FIG. 2;

FIG. 5 is a sectional view taken along line ZZ of FIG. 2;

FIG. 6 is a schematic view of a brake unit.

FIG. 7 is a schematic diagram showing a state of rope replacement.

FIG. 8 is a front view showing an example of a conventional wire rope changing device.

[Explanation of symbols]

 A: Wire rope changing device D: Brake unit 1: Winder 2: Feeding machine 6: First drum half 11: Gap 17: Dolly 21: 2nd drum half body 34 ・ ・ ・ new rope 35 ・ ・ ・ wood 41 ・ ・ ・ friction brake 42 ・ ・ ・ old rope M ・ ・ ・ motor S ・ ・ ・ slit

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Takashi Hieda 1302 Higashitoyoi, Kudamatsu City, Yamaguchi Prefecture Toyo Kohan Co., Ltd. Kudamatsu Plant (56) References JP-A-63-282079 (JP, A) JP-A-54- 129254 (JP, A) JP-A-63-17792 (JP, A) JP-A-60-72450 (JP, U) JP-A-4-107779 (JP, U) JP-B-43-11052 (JP, B1)

Claims (5)

(57) [Scope of request for utility model registration] 1. A wire rope changing device comprising: (a) an old rope winding machine and a new rope unwinding machine; and (b) the old rope winding machine having a flange provided rotatably with respect to a frame. A first drum half, and a second drum half disposed coaxially and opposed to the first drum half and provided rotatably and axially movable with respect to the frame; c) at least one of the first and second drum halves is provided with a rotation driving means; and (d) the second drum half is provided on an upper portion of a support member so as to be axially fastened by a screw. A wire rope changing device, wherein the support member is installed so as to run in an axial direction with respect to a frame. 2. The apparatus according to claim 1, wherein a gap is formed from the first drum half to the second drum half, through which a wire tying a bundle of old ropes wound thereon is passed. 3. A slit extending in a radial direction is formed in a flange of each of the first and second drum halves, and at least a portion of the trunk portion of the first and second drums corresponding to a gap between the flanges, 3. The apparatus according to claim 2, wherein a radial rib for winding the old rope is formed around the old rope, and a groove between the slit and the rib is a gap for passing the wire. 4. The new rope feeding machine is provided with brake means for preventing the new rope from escaping.
The described device. 5. The new rope unwinding machine has a pair of grippers for holding both ends of a frame around which the new rope is wound, and the grippers independently rotate about a common rotation axis. The device of claim 1, wherein the device is freely supported.