JPH0442315Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a cable traverse device applied to a mechanical cable hoist, a wire reel, etc.

[Conventional technology]

For example, as a cable traverse device of a conventional cable hoist, there is a single roller type cable lateral device shown in the plan view of FIGS. 8 and 9, and a double roller type cable traverse device shown in the plan view of FIGS. There is a type cable lateral advancement device. In FIGS. 8 and 9, when the cable 10 is wound around the cable drum 1, the rotational power of the cable drum 1 is transmitted to the screw shaft 09 via the drum side gear 4, the gear device 5, and the screw shaft side gear 6, The screw shaft 09 performs a rotational movement. The rotation of the screw shaft 09 causes the guide roller stand 08 to reciprocate on the screw shaft 09, and the guide roller 07 rotatably mounted on the guide roller stand 08 winds the cable 10 in an aligned manner around the cable drum 1. It serves as a guide. In this case, tension is applied to the cable 10 only in one direction by the guide roller 07 between the cable drum 1 and the suspension stand 11. In addition, 2,3
is a bearing. If the diameter of the cable 10 increases during winding, as shown in FIG. The cable 10 is wound around the cable drum 1 in an aligned manner.

However, in such a structure, the hanging stand 11
cannot be placed on the center line of the cable drum 1 and must always be placed outside the width of the cable drum 1. That is, if the suspension stand 11 is placed on the center line of the cable drum 1, there is a drawback that the cable 10 cannot be wound around the right half of the cable drum 1. Therefore, the cable drum 1 and the suspension stand 11
This has the disadvantage that the installation position is restricted, making it difficult to install on ships with limited space.

Therefore, as a device which eliminates the above-mentioned disadvantages in arrangement, there is a double roller type cable traverse device shown in plan views in FIGS. 10 and 11. In FIGS. 10 and 11, parts with the same numbers as those shown in FIGS. 8 and 9 are equivalent components, and therefore their explanations will be omitted.

In FIGS. 10 and 11, the guide roller stand 08a
Two guide rollers 07a and 07b are rotatably mounted on the top, and the rotation of the screw shaft 09 causes the guide roller stand 08a to reciprocate on the screw shaft 09, and the guide roller on the guide roller stand 08a 0
7a and 07b connect the cable 10 to the cable drum 1
It serves as a guide to ensure that the windings are lined up.
Since the cable 10 is located between the guide rollers 07a and 07b, the cable 10 can be wound around the cable drum 1 in an aligned manner no matter where the suspension stand 11 is located. In this case, the cable 10 is moved between the cable drum 1 and the suspension base 11 by guide rollers 07a, 07b.
This causes tension to work in each direction. Then, as shown in FIG. 11, the cable 10
If the diameter of the cable 10 increases during winding, the gap between the guide rollers 07a and 07b is widened to allow the cable 10 with a large diameter to pass through. However, in such a structure, the guide rollers 07a and 07a are closed while the cable 10 is being wound.
If the action to widen the gap between guide rollers 07a and 07b is delayed, the cable 1 with a large diameter will be
0 will enter and damage the guide rollers 07a, 07b or the cable 10.

[Problem that the invention attempts to solve]

The present invention was proposed in view of these circumstances, and is a simple and economical sliding double-roller type cable lateral movement that does not limit the installation location and does not damage the guide rollers or cables. The purpose is to provide equipment.

[Means for solving problems]

For this reason, the present invention has two guide rollers that are installed between the cable drum and the cable inlet and move in the direction of the rotation axis of the cable drum to guide the cable in order to wind the cable in an aligned manner around the cable drum. A sliding double-roller type cable traverse device comprising: two guide rollers spaced apart by a distance greater than or equal to the maximum diameter of the cable, and
Equipped with a displacement mechanism that discontinuously displaces the guide roller in the moving direction when the guide roller moves laterally while guiding the cable and passes near a line that intersects at right angles to the rotation axis of the cable drum from the cable inlet. It is characterized by

[Effect]

With the above configuration, the installation location of the cable drum, cable traversing device, and cable inlet is not restricted, and even if the diameter of the cable to be wound changes suddenly, the guide roller or cable etc. will not be damaged. The cable is guided to the cable drum.

〔Example〕

To explain the embodiment of the present invention with reference to the drawings, Fig. 1 is a plan view of the first embodiment, Figs. 2 to 6 are explanatory diagrams of its operation, and Fig. 7 is a side view of the main part showing the second embodiment. It is a diagram.

In the figure, 1 is a cable drum, 2 and 3 are bearings, and 4
is a drum side gear, 5 is a gear device, 6 is a screw shaft side gear, 7a, 7b are guide rollers, 8, 8a are guide roller stands, 9, 9a are screw shafts, 10 is a cable, 1
1 is a suspension stand, 12, 12a are hydraulic cylinders, 13
is a spline, and 14a and 14b are limit switches.

Note that the cable lateral advancement device includes guide rollers 7a,
7b, guide roller stands 8, 8a, screw shafts 9, 9a, and splines 13, and the displacement mechanism includes hydraulic cylinders 12, 12a, limit switch 1
4a, 14b and a control device (not shown), and the cable introduction port may be replaced by a hanging platform 11 or a bollard on another ship deck.

In FIG. 1, when the cable 10 is wound around the cable drum 1, the power of the rotation of the cable drum 1 is transmitted to the screw shaft 9 via the drum side gear 4, the gear device 5, and the screw shaft side gear 6. The shaft 9 performs a rotational movement. As the screw shaft 9 rotates, the guide roller stand 8 reciprocates on the screw shaft 9, and the guide rollers 7a and 7b rotatably mounted on the guide roller stand 8 move the cable 10 to the cable drum 1.
It serves as a guide to ensure that the windings are lined up. The screw shaft side gear 6 and the screw shaft 9 are connected by a spline 13, so that the rotational motion of the screw shaft side gear 6 can be transmitted to the screw shaft 9, and the screw shaft 9 can slide in the axial direction. . The screw shaft 9 can be slid in the axial direction by a distance proportional to the stroke of the cylinder by reciprocating the hydraulic cylinder 12. When the screw shaft 9 slides in the axial direction, the guide roller stand 8 and the guide rollers 7a, 7b mounted thereon slide by the same distance.

The guide roller stand can operate the limit switches 14a, 14b by moving on the screw shaft 9, and the hydraulic cylinder 12 is operated by a control device (not shown) in response to signals from the limit switches 14a, 14b, and the screw shaft 9 is slid in the axial direction. There is a mechanism to do this. The guide rollers 7a and 7b are pivotally supported on a guide roller stand 8 at intervals, and a cable 10 is passed between them. Also, the distance between the guide rollers 7a and 7b is
are separated by a distance that allows the maximum diameter of the two to pass through. The hanging stand 11 is an inlet for the cable 10 onto the ship, and the distance between the rollers on the hanging stand 11 is widened so that the maximum diameter of the cable 10 can pass through.

Next, to explain the action using Figures 2 to 5, the second
The figure shows the cable 10 being wound around the right end of the cable drum 1. Since tension is acting on the cable 10, the cable 10 is guided only by the left guide roller 7a and wound in an aligned manner. Then, as the screw shaft 9 rotates, the guide roller 7a gradually advances in the direction of arrow X, that is, to the left in the drawing, and guides the cable 10.

Next, FIG. 3 shows a state in which the guide roller stand 8 has advanced to the left from the state shown in FIG. 2 and has advanced to the vicinity of the center line of the cable drum 1. The cable 10 is in a straight line on the line connecting the center of the cable drum 1 and the suspension base 11, and the guide roller 7a no longer moves the cable 1
0 cannot be guided. In this regard,
The guide roller stand 8 operates the limit switch 14a, and the signal from the limit switch 14a causes the hydraulic cylinder 12 to operate, thereby displacing the screw shaft 9 discontinuously in the direction of the arrow X. When the screw shaft 9 is displaced in the direction of arrow X, the guide roller stand 8 attached thereon is also displaced in the direction of arrow X, and the guide roller 7
b contacts the cable 10. The state after this displacement is shown in FIG. Thereafter, the guide roller 7b guides the cable 10 along the left half of the drum 1.

FIG. 5 shows a state in which the guide roller 7b guides the cable 10 to the left end of the drum 1.

The guide roller 7b then moves in the direction opposite to the arrow X and guides the cable 10, but when the cable 10 is guided to the center of the drum 1, the limit switch 14b is actuated and the hydraulic cylinder 12 is actuated.
Move in the order shown. In this way, the cable 10 is wound around the drum 1 in an aligned manner. The spline 13 can transmit the rotation of the screw shaft side gear 6 to the screw shaft 9 even if the screw shaft 9 moves left and right due to the operation of the hydraulic cylinder 12.

FIG. 6 shows a situation where the diameter of the cable 10 increases during winding. In this case, the speed is changed by the gear device 5, and the guide roller stand 8 is moved to the screw shaft 9.
Cables 10 of different diameters can be wound on the drum 1 in an aligned manner by changing the pitch at which the cables 10 are advanced. In the case of a cable 10 having a large diameter, the limit switches 14a and 14b are designed not to output a signal, so the hydraulic cylinder 12 is not operated, so that the cable can be wound in alignment even near the center of the drum 1.

Note that the first embodiment shown in FIGS. 1 to 5 above shows the case where the suspension base 11 is located at the center of the drum 1, but if the suspension base 11 is shifted from the center of the drum 1, the Limit switch 14a, 14
It is necessary to shift the position of b.

Furthermore, a thickness detector of the cable 10 may be provided on the suspension base 11, and the amount of movement of the hydraulic cylinder 12 may be automatically changed accordingly.

Further, instead of the limit switches 14a and 14b, the hydraulic cylinder may be provided with an operating valve, and the hydraulic cylinder may be directly operated by the operating valve.

Next, the second embodiment will be explained with reference to FIG. 7. 7a and 7b are guide rollers, 12a is a hydraulic cylinder, 9a is a screw shaft, and 8a is a guide roller stand. In the embodiment, the screw shaft 9a
In the second embodiment shown in FIG. 7, a hydraulic cylinder 12a is mounted on the guide roller table 8a, and the hydraulic cylinder 12a moves on the guide roller table 8a. The guide rollers 7a and 7b are displaced by the reciprocation of the guide rollers 7a and 7b. In this case, the screw shaft 9a does not need to be displaced in the axial direction.

[Effect of idea]

In short, according to the present invention, the cable drum, cable traverse device, and cable entry port can be installed freely without any restrictions, and large cables can be installed while the cable is being wound around the cable drum. The cable can pass between the guide rollers even when the cable is in use, and damage to the guide rollers and the cable can be prevented.

In addition, when a small diameter cable is passing through, there is a gap between the guide roller and the cable, and this gap allows foreign matter to adhere to the cable, and the guide roller allows the cable with foreign matter to pass through. The present invention is extremely useful industrially because it provides a sliding double-roller type cable traverse device.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention;
2 to 6 are explanatory diagrams of its operation, and FIG. 7 is a side view of the main part showing the second embodiment. 8 to 11 are plan views of conventional devices. 1... Cable drum, 2, 3... Bearing, 4...
...Drum side gear, 5...Gear device, 6...Screw shaft side gear, 7a, 7b...Guide roller, 8, 8a...
...Guide roller stand, 9, 9a...Screw shaft, 10...
Cable, 11... Suspension stand as cable introduction port, 12, 12a... Hydraulic cylinder, 13... Spline, 14a, 14b... Limit switch.

Claims (1)

[Scope of utility model registration request] A sliding double roller that is installed between the cable drum and the cable inlet to wind the cable in an aligned manner on the cable drum, and is equipped with two guide rollers that move in the direction of the rotation axis of the cable drum and guide the cable. In a type cable traversing device, two guide rollers are provided with an interval equal to or larger than the cable maximum diameter, and the guide rollers guide the cable as it moves laterally, and the cable is moved from the cable inlet to the rotation axis of the cable drum. A sliding double-roller type cable traverse device characterized by comprising a displacement mechanism that displaces a guide roller discontinuously in the moving direction when passing near a line that intersects at right angles.