JP3337324B2 - Cable-powered traveling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable-powered traveling machine that travels on straight and curved rails on a quay like a quay crane.

[0002]

2. Description of the Related Art A conventional wharf crane is shown in FIGS. First, the quay crane in FIG. 8 will be described.
b is an L-shaped quay wall in plan view, 2a is one linear rail laid on one quay la 1a, 2b is another linear rail laid on the other quay 1b, 3 is a connecting portion of these linear rails 2a, 2b (The quay corner)
By turning the turntable 3, the quay crane is turned back and forth from the straight rail 2a to the straight rail 2b or vice versa.

Next, the quay crane shown in FIG. 9 will be described.
a, 1b are L-shaped quays in plan view, 2a is one linear rail laid on one quay 1a, 2b is another linear rail laid on the other quay 1b, 2c is these linear rails 2c.
A curved rail connecting the branch portions a and 2b is a power supply cable extending from a power supply point 5, and a leading end of the power supply cable 4 is wound around a cable reel installed on a quay crane (cable power supply type traveling machine). When running the quay crane in the direction of the straight rail 2a → the curved rail 2c → the straight rail 2b or vice versa, when running the quay crane in the direction of the straight rail 2b, the feeding cable 4 is extended from the cable reel on the quay crane. Then, it is dropped into a cable guide groove (not shown) provided in parallel with each of the rails 2a to 2b. When the vehicle is turned back and forth in the direction of the straight rail 2a, the power supply cable 4 is wound up by a cable reel on a quay crane.

[0004]

In the conventional quay crane shown in FIG. 8, the turntable 3 is expensive and the equipment cost is high. In addition, the turntable 3 occupies the corner of the quay, so that other vehicles such as trailers cannot travel on the quay, and the quay crane cannot be used for cargo handling at the quay corner.

Although the conventional quayside crane shown in FIG. 9 does not require the turntable 3, it has been estimated that a crane with a rail span of 30 m has a minimum radius outside the curved rail 2c of 90 m and a straight rail. In 2a and 2b,
A straight section 50 m closer to the quay corner side than the connection point with the curved rail 2c is required. Further, when repeatedly running in the direction of the straight rail 2a, it is necessary to sharply bend the power supply cable 4 into a horizontal plane near the connection point between the straight rail 2b and the curved rail 2c. There is a problem that it is difficult to turn the vehicle back and forth in the direction of the straight rail 2a.

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above problems, and has as its object the provision of a traveling machine of a cable feeding system which enables the traveling machine to switch back to a straight rail on a feeding point side. The point is to try.

[0007]

In order to achieve the above-mentioned object, a cable-powered traveling machine according to the present invention is arranged such that the traveling machine is located on a power feeding point side of a power feeding cable fed from a cable reel on the traveling machine. While connecting the straight rail and the other straight rail via a curved rail, a cable guide groove is provided in parallel with each of the rails, and a cable guide groove near the connection point between the curved rail and the other linear rail is provided. A pit is provided, and a cable guide drum is installed in the pit directly above the cable guide groove so as to be movable between an operating position and a storage position beside the operating position.

[0008]

The cable-powered traveling machine of the present invention is configured as described above, and the cable-powered traveling machine travels from one straight rail having a feeding point to a curved rail to the other linear rail, When the cable reel on the traveling machine passes over the cable reversing device, the traveling machine stops, and the power feeding cable is dropped into the straight cable guide groove on the side of the other straight rail, the traveling machine is moved to the other straight rail. → Curved rail → When turning back to one straight rail, move the cable guide drum of the cable reversing device to the storage position → Move to the operating position just above the straight cable guide groove, then turn the running machine back and run, and feed the power cable as described above. Invert the cable guide drum from the lower side to the upper side by 180 ° and drop it straight into the curved cable guide groove and the straight cable guide groove on the feeding point side .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cable-powered traveling machine according to the present invention will be described below with reference to an embodiment shown in FIGS.
a, 1b are L-shaped quays in plan view, 2a is one linear rail laid on one quay 1a, 2b is another linear rail laid on the other quay 1b, 2c is these linear rails 2c.
A curved rail on the quay corner connecting the branching portions a and 2b, a feeding cable 4 extending from the feeding point 5, and a linear cable guide groove 4a provided on the one quay la in parallel with the linear rail 2a. 1, 4, 6, and 7 are straight cable guide grooves provided on the other quay 1 b in parallel with the straight rail 2 b, and 4 c in FIG. 1 are provided in a corner of the quay in parallel with the curved rail 4 c. Curved cable guide groove, 20 in FIGS. 5, 6 and 7 is a cable-powered traveling machine (quay crane), 21 is a cable reel installed on the traveling machine 20, and 22 is a guide installed on the traveling machine 20 The end of the power supply cable 4 is wound around a cable reel 21 installed on the traveling machine 20 by a roller.

In FIG. 1, reference numeral 6 denotes a rail switching device provided at a connection portion between the linear rails 2a, 2b and the curved rail 2c, and 7 denotes a part of the linear rails 2a, 2b in 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 extending from the curved cable guide groove 4c to the side opposite to the feeding point 5.

The details of the cable reversing device 30 are shown in FIGS.
3, a pit 31 is provided on the quay, and the pit 31 communicates with the straight cable guide groove 4b. Reference numeral 32 denotes an apparatus main body installed on the bottom of the pit 31; 33, a drum shaft supported by the apparatus main body 32 so as to be movable in the axial direction; and 34, a cable rotatably supported by the drum shaft 33. A guide drum 37 is pivotally supported on the upper portion of the apparatus main body 32 by a shaft 35.
Is a jack rod of the jack 36, 38 is a lever that pivotally supports the center of the apparatus main body 32, and 39 is a guide drum advance / retreat driving means including the respective portions 35 to 38. Both ends of the lever 38 are jacks. The traveling machine 20 is pivotally supported by the rod 37 and the drum shaft 33, and
b → Only when turning back and running in the direction of the curved rail 2c, the jack 36 is operated in the extending direction to extend the jack rod 37, and the movement is transmitted to the drum shaft 33 through the lever 38, and the drum shaft 33 is moved. 33 and the cable guide drum 34 are moved from the storage position (dashed-dotted line position) to the operating position (solid line position) immediately above the straight cable guide groove 4b.

The straight cable guide groove 4b is
As shown in FIGS. 4 in FIG.
Reference numeral 0 denotes a cable receiver in the straight cable guide groove 4b.
The rail switching device 6 in FIG. 4 converts the linear rail 2a into the curved rail 2c.
And the rail switching device 7 turns the curved rail guide groove 4c to open by rolling the straight rail 2a portion straddling the curved cable guide groove 4c. In addition, the rail switching devices 6 and 7 between the curved rail 2c and the linear rail 2b are similarly switched to connect the curved rail 2c and the linear rails 2a and 2b.

Next, the operation of the cable-powered 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 a curved rail 2c to the other straight rail 2b, and the traveling machine 2
0, the cable reel 21 passes over the cable reversing device 30, the traveling machine 20 stops, and the traveling machine 20 is moved from the state where the power supply cable 4 is dropped into the straight cable guide groove 4b on the side of the straight rail 2b. The straight rail 2b → the curved rail 2c → the one straight rail 2a is turned back, the jack 36 of the cable reversing device 30 is operated in the extending direction, the jack rod 37 is extended, and the movement is transmitted through the lever 38. Then, the drum shaft 33 and the cable guide drum 34 are moved from the storage position (dashed-dotted line position) to the operating position (solid line position) immediately above the straight cable guide groove 4b.

Next, the traveling machine 20 is turned back and travels 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 left as it is.
And dropped into the straight cable guide groove 4a.

[0015]

As described above, in the cable-powered traveling machine of the present invention, the cable-powered traveling machine travels from one straight rail having a feeding point to a curved rail and then to the other linear rail.
The cable reel on the traveling machine goes over the cable reversing device,
When the traveling machine stops and the power cable is dropped into the straight cable guide groove on the side of the other straight rail, and the traveling machine is turned back to the other straight rail → curved rail → one straight rail. Then, the cable guide drum of the cable reversing device is moved from the retracted position to the operating position immediately above the straight cable guide groove, and then the traveling machine is turned back and travels, and the power supply cable is turned 180 ° upward from the lower side of the cable guide drum. Then, since it is dropped into the curved cable guide groove and the feeding point side straight cable guide groove as it is, there is an effect that the traveling machine can be turned back to the feeding point side straight rail.

[Brief description of the drawings]

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

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

FIG. 3 is a vertical sectional side view taken along line AA of FIG. 2;

FIG. 4 is an enlarged plan view of a portion indicated by an arrow B in FIG. 1;

FIG. 5 is an operation explanatory view of the cable reversing device along the line CC in FIG. 1;

FIG. 6 is an operation explanatory view of the cable reversing device along the line CC in FIG. 1;

FIG. 7 is an operation explanatory view of the cable reversing device along the line CC in FIG. 1;

FIG. 8 is a plan view showing one example of a conventional cable-powered traveling machine.

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

[Explanation of symbols]

 1a, 1b Wharf 2a One straight rail 2b The other straight rail 2c Curved rail 4 Power supply cable 4a, 4b Straight cable guide groove 4c Curved cable guide groove 5 Power supply point 20 Traveling machine 21 Cable reel 30 Cable reversing device 31 Pit 34 Cable guide drum

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hideki Nakagawa 2nd Yamashita-cho, Naka-ku, Yokohama-shi, Kanagawa Prefecture Foundation of Yokohama Port Pier (72) Inventor Eiichi Oiwa 2nd Yamashita-cho, Naka-ku, Yokohama, Kanagawa Corporation of Yokohama Port Wharf (72) Inventor Masaki Yamakito 2nd Yamashitacho, Naka-ku, Yokohama-shi, Kanagawa Prefecture Foundation of Yokohama Port Wharf (72) Kunio Sasaki 2nd Yamashitacho, Naka-ku, Yokohama-shi, Kanagawa Pref. (72) Inventor Yoshiaki Okubo 4-2-2 Kannonshinmachi, Nishi-ku, Hiroshima-shi, Hiroshima Mitsubishi Heavy Industries, Ltd.Hiroshima Works (72) Inventor Toshikazu Shimura 2-1-1 Otemachi, Chiyoda-ku, Tokyo No. Ishikawajima-Harima Heavy Industries Co., Ltd. (56) References JP-A-5-330785 (JP, A) JP-A-61-83690 (JP, U) (5 8) Field surveyed (Int. Cl. ⁷ , DB name) B66C 13/12

Claims (1)

(57) [Claims] 1. A linear rail positioned on a power supply point side of a power supply cable fed from a cable reel on a traveling machine and another linear rail are connected via a curved rail, and are parallel to the respective rails. A cable guide groove is provided, a pit is provided in a cable guide groove near a connection point between the curved rail and the other linear rail, and a cable guide drum is placed in the pit in an operating position immediately above the cable guide groove and in the same operating position. A cable-powered traveling machine that is movably installed between the two storage positions.