JPH0834591A - Cable feeding type running unit - Google Patents

Abstract

PURPOSE:To counter-run a running unit toward a power feeding side rectilinear rail by connecting a rectilinear rail laid on the power feeding point side, with the other rectilinear rail through the intermediary of a curved rail, and by movably providing a cable guide drum just above a cable guide groove within a pit in the vicinity of the contact point between the curved rail and the other rectilinear rail. CONSTITUTION:In a condition in which a running unit 20 comes to a stop and a feeding cable is dropped in a guide groove 4b, when the running unit 20 runs from the other rectilinear rail 2b to one rectilinear rail 2a through the intermediary of a curved rail 2c, a guide drum in a cable inverting device 20 is moved from a storage position to an operating position just above the rectilinear cable guide groove 4b, and the running unit 20 is counter-runs. The power feeding cable 4 is inverted from the lower side of a cable guide drum of a cable reversing device 30 by an angle of 180 deg, and it is dropped in a curved guide groove 4c and a rectilinear cable guide groove 4a. With this arrangement, it is possible to counter-run the running unit onto the power feeding point side rectilinear rail.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable-fed traveling machine that travels on a straight track and a curved track on a quay, such as a quay crane.

[0002]

2. Description of the Related Art A conventional quay crane is shown in FIGS. First, explaining the quay crane of FIG. 8, 1a, 1
b is an L-shaped pier in plan view, 2a is one linear track laid on one quay 1a, 2b is the other linear track laid on the other quay 1b, and 3 is a connecting portion of these linear tracks 2a, 2b With the turntable installed at (the quay corner)
The turntable 3 is turned to allow the quayside crane to travel back and forth from the straight track 2a to the straight track 2b or vice versa.

Next, the quay crane shown in FIG. 9 will be described.
a and 1b are L-shaped quay walls in a plan view, 2a is one linear rail line laid on one quay wall 1a, 2b is the other linear rail line laid on the other quay wall 1b, and 2c is these linear rail lines 2
Curved rails connecting the branches of a and 2b are feeding cables 4 extending from a feeding point 5, and the tip of the feeding cable 4 is wound around a cable reel installed in a quay crane (a traveling machine of the cable feeding system). When the quayside crane is run in the direction of the linear rail 2b while the quayside crane is run in the direction of the linear railroad 2b, the curved railroad line 2c, the linear railroad line 2b and vice versa, the feeding cable 4 is fed out from the cable reel on the quayside crane. And drop it into a cable guide groove (not shown) provided in parallel with each rail 2a-2b. Further, when the vehicle is turned back in the direction of the straight rail 2a, the power feeding cable 4 is wound up by the cable reel on the quay crane.

[0004]

In the conventional quay crane shown in FIG. 8, the turntable 3 is expensive and the equipment cost is high. Further, since the turntable 3 occupies the corner portion of the quay and other vehicles such as a trailer cannot travel on the quay, the berth crane cannot be used for cargo handling at the quay corner portion.

In the conventional quayside crane shown in FIG. 9, the turntable 3 is not required, but according to the calculation, a crane having a rail span of 30 m has a minimum radius of 90 m outside the curved rail 2c and a linear rail. 2a and 2b include
A straight line portion that is closer to the quay corner side than the connection point with the curved rail 2c by 50 m is required. Further, when repeatedly running in the direction of the straight rail 2a, the power feeding cable 4 needs to be sharply bent in the horizontal plane near the connection point between the straight rail 2b and the curved rail 2c, but such bending of the power feeding cable 4 is actually There is a problem in that it is difficult to cut back and run in the direction of the linear rail 2a.

The present invention has been proposed in view of the above problems, and an object of the present invention is to provide a traveling machine of a cable feeding system which enables the traveling traveling of the traveling machine back to the linear rail on the feeding point side. There is a point to try.

[0007]

In order to achieve the above object, the traveling machine of the cable feeding system of the present invention is located on the feeding point side of the feeding cable fed from the cable reel on the traveling machine. And the other linear rails are connected via curved rails, and a cable guide groove is provided in parallel with each of the rails, and in the cable guide groove near the connection point between the curved rail and the other linear rail. A pit is provided and a cable guide drum is movably installed in the pit directly above the cable guide groove between an operating position and a storage position on the side of the operating position.

[0008]

The cable-fed traveling machine of the present invention is configured as described above, and the cable-fed traveling machine travels on one straight track with the feeding point → curved track → the other straight track, From the state where the cable reel on the traveling machine crosses the cable reversing device, the traveling machine stops, and the power supply cable is dropped in the linear cable guide groove beside the other linear rail, from the traveling machine to the other linear rail. → Curved track → When traveling back to one straight track, move the cable guide drum of the cable reversing device to the storage position → move it to the operating position directly above the straight cable guide groove, then run the traveling machine back and forth, and feed the power supply cable to the above. Invert the cable guide drum from the bottom to the top 180 ° and let it fall into the curved cable guide groove and the straight cable guide groove on the feeding point side. .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a cable feeding type traveling machine of the present invention will be described with reference to one embodiment shown in FIGS.
a and 1b are L-shaped quay walls in a plan view, 2a is one linear rail line laid on one quay wall 1a, 2b is the other linear rail line laid on the other quay wall 1b, and 2c is these linear rail lines 2
Curved rails on the corner of the quay wall connecting the branches of a and 2b, 4 is a feeding cable extending from the feeding point 5, and 4a is a linear cable guide groove provided on the one quay wall 1a in parallel with the linear rail 2a. 1, 5 and 6 and 4b are straight cable guide grooves provided on the other wharf 1b in parallel with the straight rail 2b, and 4c in FIG. 1 are provided at the corner of the wharf in parallel with the curved rail 4c. Curved cable guide groove, 20 in FIGS. 5, 6 and 7 is a cable feed type traveling machine (quayside crane), 21 is a cable reel installed on the traveling machine 20, and 22 is a guide installed on the traveling machine 20. The tip of the power supply cable 4 is wound around a cable reel 21 installed on the traveling machine 20 by a roller.

Reference numeral 6 in FIG. 1 is a rail switching device provided at a connecting portion between the linear rails 2a and 2b and the curved rail 2c, and 7 is a portion of the linear rails 2a and 2b and the curved cable groove 4c.
A rail switching device 30 retracted from above is a cable reversing device provided in the straight cable guide groove 4b portion extending from the curved cable guide groove 4c to the side opposite to the feeding point 5 side.

Details of the cable reversing device 30 are shown in FIG.
Describing with reference to 3, a pit 31 is provided on the quay, and the pit 31 communicates with the straight cable guide groove 4b. Also, 32 is a device body installed on the bottom of the pit 31, 33 is a drum shaft supported by the device body 32 so as to be movable in the axial direction, and 34 is a cable rotatably supported by the drum shaft 33. A guide drum, 36 is a jack pivotally supported by a shaft 35 on the upper part of the apparatus main body 32, 37
Is a jack rod of the jack 36, 38 is a lever for pivotally supporting the central portion of the apparatus main body, 32 is a guide drum advancing / retreating driving means composed of the portions 35 to 38, and both ends of the lever 38 are the jacks. The traveling machine 20 is pivotally supported by the rod 37 and the drum shaft 33, and
The jack 36 is operated in the extension direction to extend the jack rod 37 and the movement thereof is transmitted to the drum shaft 33 via the lever 38 only when the vehicle travels back in the direction of b → curved track 2c. 33 and the cable guide drum 34 are moved from the retracted position (the position indicated by the alternate long and short dash line) to the operating position (the position indicated by the solid line) immediately above the straight cable guide groove 4b.

The straight cable guide groove 4b is
As shown in FIGS. 5, 6 and 7, the depth is deeper along the bottom of the pit 31 at the cable reversing device 30. 2 of 4
0 is a cable receiver in the straight cable guide groove 4b.
The rail switching device 6 of FIG. 4 has a linear rail 2a and a curved rail 2c.
The rail switching device 7 shows a state in which the linear cable 2a portion that straddles the curved cable guide groove 4c is turned around to switch the curved cable guide groove 4c to open. Further, by similarly switching the rail switching devices 6 and 7 between the curved rail 2c and the linear rail 2b, the curved rail 2c and the linear rails 2a and 2b can be connected.

Next, the operation of the cable feed type traveling machine shown in FIGS. 1 to 7 will be specifically described. The traveling machine 20 of the cable feeding system travels from one straight rail 2a having the feeding point 5 to the curved rail 2c and then to the other straight rail 2b.
The cable reel 21 on the 0 crosses the cable reversing device 30, the traveling machine 20 stops, and the feeding cable 4 is dropped into the linear cable guide groove 4b beside the linear rail 2b. The straight rail 2b → the curved rail 2c → one of the straight rails 2a is cut back to travel, the jack 36 of the cable reversing device 30 is actuated in the extension direction to extend the jack rod 37, and its movement is performed via the lever 38. To the drum shaft 33 to move the drum shaft 33 and the cable guide drum 34 from the retracted position (the position indicated by the alternate long and short dash line) to the operating position (the position indicated by the solid line) immediately above the straight cable guide groove 4b.

Next, the traveling machine 20 is turned and traveled in the above direction. At this time, the power supply cable 4 is inverted by 180 ° from the lower side to the upper side of the cable guide drum 34 of the cable reversing device 30, and the curved cable guide groove 4c is kept as it is.
And is dropped into the straight cable guide groove 4a.

[0015]

As described above, the cable-fed traveling machine of the present invention travels on one straight track → curved track → the other linear track having a feeding point as the cable-fed traveling machine,
The cable reel on the traveling machine crosses the cable reversing device,
When the traveling machine is stopped and the power supply cable is dropped in the linear cable guide groove beside the other linear rail, the traveling machine is switched back to the other linear rail → curved rail → one linear rail. Then, the cable guide drum of the cable reversing device is moved from the retracted position to the operating position directly above the straight cable guide groove, and then the traveling machine is turned back to travel, and the power supply cable is inverted 180 ° from the lower side to the upper side of the cable guide drum. Then, it is dropped into the curved cable guide groove and the feeding point side linear cable guide groove as it is, so that there is an effect that the traveling machine can be turned back to the feeding point side linear rail.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a cable feed type traveling machine according to the present invention.

FIG. 2 is a vertical sectional front view of the cable reversing device of the traveling machine.

3 is a vertical cross-sectional side view taken along the line AA of FIG.

FIG. 4 is an enlarged plan view of a portion indicated by an arrow B in FIG.

5 is an operation explanatory view of the cable reversing device taken along the line CC in FIG.

6 is an operation explanatory view of the cable reversing device taken along the line CC in FIG.

7 is an operation explanatory view of the cable reversing device taken along the line CC in FIG.

FIG. 8 is a plan view showing an example of a conventional cable-fed traveling machine.

FIG. 9 is a plan view showing another example of a conventional cable-fed traveling machine.

[Explanation of symbols]

 1a, 1b Quay 2a One linear rail 2b The other linear rail 2c Curved rail 4 Feed cable 4a, 4b Linear cable guide groove 4c Curved cable guide groove 5 Feed point 20 Traveling machine 21 Cable reel 30 Cable reversing device 31 Pit 34 Cable guide drum

Front page continuation (72) Inventor Eiichi Oiwa 2 Yamashita-cho, Naka-ku, Yokohama-shi, Kanagawa Foundation lawyer Yokohama Port Pier (72) Inventor Masanori Yamakido 2 Yamashita-cho, Naka-ku, Yokohama-shi Foundation lawyer Yokohama Port Pier (72) Inventor Kunio Sasaki 2 Yamashita-cho, Naka-ku, Yokohama-shi, Kanagawa Foundation Lawyer Yokohama Port-Pub (72) Inventor Yoshiaki Okubo 4-6-22, Kannon-Shinmachi, Nishi-ku, Hiroshima No. Mitsubishi Heavy Industries, Ltd. Hiroshima Works (72) Inventor Toshikazu Shimura 2-2-1 Otemachi, Chiyoda-ku, Tokyo Ishi Kawashima Harima Heavy Industries Co., Ltd.

Claims (1)

[Claims] 1. A linear rail located on the feeding point side of a feeding cable fed from a cable reel on a traveling machine and another linear rail connected to each other via a curved rail, and parallel to the rails. A cable guide groove is provided, and a pit is provided in the cable guide groove near the connection point between the curved rail and the other linear rail, and the cable guide drum is provided in the pit with the operating position directly above the cable guide groove and the operating position side. A cable-powered traveling machine characterized by being installed so as to be movable between the two storage positions.