JPH0796420B2 - Winding device for rope - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rope winding device, and more particularly, to accommodate surplus ropes in an endless circuit for feeding, collecting and circulating endless ropes. The present invention relates to a device for winding a rope body.

2. Description of the Related Art FIG. 6 shows a first conventional example of a device for accommodating a surplus cord in an endless circuit for circulating a cord such as a wire. Here, reference numeral 1 is a cord such as a wire, which is formed in an endless loop shape and is wound around a drive pulley 2 and one or more driven pulleys 3. A pair of constant pulleys 4 and a movable pulley 5 provided between the constant pulleys 4 are arranged in the middle of the loop formed by the rope 1. The arrow 6 indicates the traveling direction of the cord 1.

Now, for example, the driven pulley 3 moves in the direction of arrow 7,
When the length of the rope body 1 between the driven pulley 3 and the drive pulley 2 becomes short, the moving pulley 5 is linearly moved in the direction away from the constant pulley 4, that is, in the direction of the arrow 8, and excess The cord 1 is housed between the fixed pulley 4 and the moving pulley 5.

However, with such a configuration, when the length of the rope 1 in the loop changes significantly, the moving distance of the moving pulley 5 increases. Therefore, when the device becomes large and the installation space is limited, there is a problem that the device may not be sufficiently accommodated.

Therefore, conventionally, a device such as a second conventional example as shown in FIG. 7 has been proposed. Here, the fixed pulley 4 and the movable pulley 5
By reciprocating the rope 1 a plurality of times between and, the amount of movement of the moving pulley 5 is smaller than the change in the length of the rope 1 in the loop.

However, even with the configuration shown in FIG. 7, the moving pulley 5
There is a problem in that the driving force for moving the vehicle becomes large, and the drawbacks in terms of space have not been completely solved.

Therefore, an object of the present invention is to solve such a problem.

Means for Solving the Problems In order to achieve the above object, the present invention is a winding device for surplus ropes in an endless circuit, which is configured to circulate an endless rope, and is a rope on a machine base. The winding wheel for winding the body is rotatably supported, and the winding wheel is
A plurality of roller members are rotatably provided at predetermined intervals along the circumferential direction, and a moving pulley around which the rope is wound is provided inside the roller members, and the winding wheel is mounted on the machine base. Place the adjustment axis parallel to the body axis, and on this adjustment axis,
Supporting bases that can move in opposite directions via a screw mechanism are screwed together, and fixed pulleys for guiding the ropes are rotatably provided on the respective supporting bases, and the winding wheel and the winding body are wound. A motor for rotating the adjustment shaft in association with the wheel body is provided.

Action In such a configuration, when a surplus occurs in the rope, the rope guided by the moving pulley is wound up along the circumferential path to accommodate the surplus of the rope.
At this time, since the rope is wound up along the path in the circumferential direction, it is possible to accommodate a long rope in a small space, and a large driving force for winding is not required.

Embodiment FIG. 1 shows a schematic structure of a rope winding device according to an embodiment of the present invention. Here, instead of linearly moving the movable pulley 5 as in the conventional example shown in FIGS. 6 and 7, the movable pulley 5 is moved in the circumferential direction, and the rope 1 is moved in the circumferential path 11. The cord 1 is housed so as to be wound up along with.

2 to 4 show the path of the rope 1 in the circumferential direction as described above.
A specific configuration of a winding device 12 for winding along 11 is shown. Here, 13 is a machine base, and on this machine base 13, a winding wheel 14 for winding the rope 1 is rotatably supported. This ring 14 is a central shaft supported by bearings 15.
16, a pair of circular face plates 17 provided at a distance in the lengthwise direction of the central axis 16, a central member 18 provided at the center of the wheel body 14 between the two side plates 17, A plurality of roller members 19 provided at intervals along the circumferential direction of the body 14.
And have. Each roller member 19 has a support shaft 20 extending between the double-sided plates 17, and a pair of roller bodies 21 and 22 arranged along the length direction of the support shaft 20. Each roller body 21, 22 is supported by a support shaft so as to be independently rotatable.

A moving pulley 5 is provided at a position inside the roller member 19 in the winding wheel body 14. The movable pulley 5 is rotatably attached to the center member 18 and is rotatable integrally with the wheel body 14.

A motor 23 and a reducer 24 are provided on the machine base 13, and by being linked to the central shaft 16 by the chain drive unit 25,
The winding wheel 14 can be driven to rotate.

An adjusting shaft 26 is arranged on the machine base 13 in parallel with the axis of the winding wheel body 14. The adjusting shaft 26 is provided with a feed mechanism such as a feed screw, and is configured to be able to move the pair of support bases 27, 27 in opposite directions.
Fixed pulleys 4A and 4B are rotatably supported on the support bases 27 and 27, respectively. The adjusting shaft 26 is interlocked with the central axis 16 of the winding wheel body 14 by a chain device 28, and by rotating in synchronization with the rotation of the winding wheel body 14, the gap between the constant pulleys 4A, 4B is increased. Can be changed.

The rope 1 is wound around the fixed pulleys 4A and 4B and the movable pulley 5,
Moreover, the winding wheel 14 is wound around the wheel 14 by the rotation thereof. Here, the rope body 1 in a portion between the one fixed pulley 4A and the moving pulley 5 is wound so as to be in contact with the surface of the one roller body 21, and the moving pulley 5 and the other constant pulley 4B are also wound. The cord body 1 in the part up to is the other roller body 22.
It is wound so that it touches the surface of. Further cord 1
Is also hung on a tension detecting device 29 using a pair of pulleys.

In such a configuration, when a surplus occurs in the cord 1, the tension decreases, and this is detected by the tension detecting device 29. Then, the motor 23 is driven based on this detection operation, the winding wheel 14 is rotated, and the surplus cord 1 is wound up.

The rope 1 wound up in this way has a fixed pulley 4A and a roller body.
Since 21, the movable pulley 5, the roller body 22, and the constant pulley 4B are wound in this order, when passing through the endless circuit shown in FIG. At this time, the portion of the rope 1 between the fixed pulley 4A and the moving pulley 5 on one side and the portion of the rope 1 between the fixed pulley 4B and the other fixed pulley 4B travel in opposite directions. However, the parts of these cords 1 are the roller members 2 respectively.
Since the roller bodies 21 and 22 are wound around 1, 22 and can be rotated in the opposite directions independently of each other, the rope body 1 travels very smoothly. In addition, since the spacing between the constant pulleys 4A and 4B is adjusted by the adjusting shaft 26 that rotates in synchronization with the rotation of the winding wheel body 14, overlapping of the rope bodies 1 in the winding wheel body 14 is prevented. From this point as well, smooth running of the rope 1 is ensured.

Contrary to the above, when a shortage occurs in the rope body 1, this causes the tension of the rope body 1 to increase, and this is detected by the detection device 29, and the winding wheel body 14 is rotated in the opposite direction, The rope 1 is extended until the tension becomes a predetermined value.

FIG. 5 shows a specific example in which the winding device 12 of the present invention is applied to a diamond wire saw. The diamond wire saw 31 as a rope is an endless running body for cutting the concrete structure 32, and a running driving force is applied by being wound around the driving pulley 33.

In such a case, conventionally, it is necessary to move the drive pulley 33 as shown by an imaginary line as the cutting of concrete progresses, and when the cutting cross section is large, the movement amount of the drive pulley 33 is also large. . If there are restrictions on location, the factory may be interrupted as the cutting progresses and the wire saw 31
I even needed to replace it with a short one. On the other hand, by using the winding device 12 of the present invention, it is possible to carry out the cutting work without interrupting the construction work or even moving the drive pulley 33.

EFFECTS OF THE INVENTION As described above, according to the present invention, since the surplus cord is wound up along the circumferential path, without requiring a particularly large driving force for winding,
A long cord can be accommodated in a small space. Also,
Since the constant pulley that guides the rope is movably attached to the adjustment shaft provided on the machine base side, for example, the winding position of the rope can be changed according to the winding state of the rope around the winding wheel. The configuration can be simplified as compared with the case where the pulley to be adjusted is rotated along the circumference of the winding wheel body.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of a rope winding device according to an embodiment of the present invention, FIG. 2 is a perspective view of the device, FIG. 3 is a front view of the device, and FIG. 4 is the device. FIG. 5 is a side view of the same, and FIG. 5 is a view showing a concrete example in which the same device is applied to a diamond wire saw.
FIG. 7 and FIG. 7 are diagrams showing the schematic configurations of the first and second conventional examples. 1 ... Rope, 4,4A, 4B ... Constant pulley, 5 ... Movable pulley, 11 ...
… Circumferential path, 12 …… Winding device, 14 …… Winding wheel, 21,22 …… Roller body, 26 …… Adjustment shaft, 29 …… Tension detection device.

Claims (1)

[Claims] 1. A winding device for a surplus rope in an endless circuit, which is configured to circulate an endless rope, and a winding wheel for winding the rope on a machine base. A movable pulley that is rotatably supported, and is provided with a plurality of roller members rotatably on the winding wheel body at predetermined intervals along the circumferential direction thereof, and a rope is wound inside the roller member. Is provided, and an adjusting shaft is arranged on the machine base in parallel with the axis of the winding wheel body, and a support base that can move in opposite directions via a screw mechanism is screwed onto the adjusting shaft. At the same time, a fixed pulley for guiding the rope is rotatably provided on each of the support bases, and a winding wheel and a motor for rotating the adjusting shaft in conjunction with the winding wheel are provided. A device for winding a cord, which is characterized by: