JP4050495B2 - Power supply device for tire crane - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a power supply device for a tire-type crane used for storing containers at a container terminal.
[0002]
[Prior art]
Conventionally, as one of cargo handling devices for storing containers at a container terminal, there is a tire type crane in which a trolley is disposed on a gate-shaped crane body and tire-type traveling wheels are provided on legs constituting the crane body. Are known.
[0003]
As shown in FIG. 6, the tire-type crane A has a trolley 2 disposed on an upper portion of a gate-shaped crane main body 1 and a tire-type traveling wheel 4 on a lower portion of a leg 3 constituting the crane main body 1. .
[0004]
The tire-type crane A supplies power to various driving devices by driving a generator engine (not shown) in the engine room 5, and is provided in a container terminal B, for example, as shown in FIG. The vehicle travels along the traveling lanes a1 to a5, and the container is loaded and unloaded by the trolley 2 and the spreader 6 at a predetermined position.
[0005]
On the other hand, as means for supplying power to the tire-type crane A, as described in JP 2000-272868 A, a power supply device is provided on the ground or underground, and a power supply cable is disposed on the crane body. It is also known to supply power by connecting the power supply cable and the power supply device with a connector attached to the cable.
[0006]
[Problems to be solved by the invention]
However, when a conventional tire-type crane power feeding device drives a generator engine (not shown) mounted on the crane body 1 to supply power, periodic maintenance or overhaul of the generator engine is required. In addition, there is a problem that the running cost increases because the fuel cost increases. In addition, the environment has deteriorated due to the generation of exhaust gas and noise, and the crane body must have a rigid structure, resulting in increased production costs.
[0007]
On the other hand, when power is supplied by connecting a power supply device and a power supply cable, the crane main body requires a power supply cable storage device such as a cable reel. There was a problem that there was a risk of damage.
[0008]
The present invention has been made to solve such a conventional problem. The object of the present invention is not to generate exhaust gas and noise when supplying power to a tire crane, but also to maintain maintenance costs. It is an object of the present invention to provide a power supply device for a tire-type crane that can measure the reduction of the power consumption and that does not damage the power supply cable.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is configured as follows.
[0010]
That is, the power supply device for a tire crane according to the present invention is provided with a power supply trolley wire along a traveling lane provided in the container terminal, and is provided on the power supply trolley wire on the tire crane and includes a guide roller. In addition, in the power supply device of the tire type crane that is configured to contact and supply power to a current collector equipped with a panda graph mechanism , guide rails are provided above and below the inner surface of the outer wall that extends sideways or directly beside the travel lane. A power supply trolley wire is provided, and the current collector is brought into contact with the power supply trolley wire using a hydraulic holding means, and the position thereof is held .
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
In addition, the same code | symbol is attached | subjected to the apparatus which has the same function as the conventional tire type crane, and detailed description is abbreviate | omitted.
[0016]
FIG. 1 is a plan view of the container terminal, and the container terminal B is provided with five traveling lanes a1 to a5. Each of the traveling lanes a1 to a5 is provided with a selected number of tire cranes A. In addition, passages 9a to 9e with which a current collector 8 (described later) is in contact are extended on the sides or directly beside each of the travel lanes a1 to a5.
[0017]
Since the passages 9a to 9e have the same structure, only the passage 9c will be described here. As shown in FIG. 4, the passage 9 c is composed of an outer wall 11, an upper wall 12, and an inner wall 14 having an opening 13, and both ends thereof are open. Guide rails 15 a and 15 b and a plurality of power supply trolley wires 16 a to 16 d are attached to the upper and lower sides of the inner surface of the outer wall 11. Further, guide portions 17 and 17b (see FIG. 2) are provided at the end portions of the guide rails 15a and 15b.
[0018]
As shown in FIG. 5, the current collector 8 includes a plurality of terminals 18 a to 18 d that are in contact with the power supply trolley wires 16 a to 16 d with a predetermined pressing force P, and a pantograph mechanism in which the terminals 18 a to 18 d are attached. 19 and an attachment member 21 for attaching the pantograph mechanism 19 to the horizontal shaft 20.
[0019]
As shown in FIG. 5, the horizontal shaft 20 is constituted by a parallel link mechanism in which two are arranged in parallel, and the other end is attached to an outer cylinder 24 constituting a vertical shaft 23 via a link 22. . A hydraulic cylinder 25 rotates the horizontal shaft 20 and, as a result, contacts the pantograph mechanism 19 with the terminals 18a to 18d to the power supply trolley wires 16a to 16d with a predetermined pressing force P. Is supposed to hold.
[0020]
As shown in FIG. 4, the vertical shaft 23 includes an inner shaft 27 attached to the lower portion of the crane body 1 via support members 26 a and 26 b, and an outer cylinder 24 that moves up and down by the hydraulic cylinder 28 along the inner shaft 27. It consists of and. Reference numeral 29 denotes a fixing member that fixes the passage 9a and the passage 9b.
[0021]
In the above description, each of the travel lanes a1 to a5 has been described with respect to the case where the passages 9a to 9e are extended over the entire length thereof. However, the passages 9a to 9e are formed in the longitudinal direction of the travel lanes a1 to a5 as desired. You may arrange | position so that it may have a predetermined space | interval. That is, in order to improve the efficiency of the tire type crane A, there is a case where the tire lane C1 is moved laterally from the traveling lane a1 to the traveling lane a2. In order to enable the lateral movement, tires are respectively provided in the passages 9a to 9e. It is also possible to provide an interval through which the crane C can pass. In this case, it is preferable to cover the electric power at the time of lateral movement by mounting an engine for an auxiliary generator on the crane body 1.
[0022]
In this example, the passages 9a to 9e have been described with the upper wall 12, the outer wall 11, and the inner wall 14, respectively. However, the passages 9a to 9e are not limited to walls and are configured by a frame. There is no hindrance.
[0023]
Next, the operation of the power supply device for the tire crane will be described.
[0024]
Now, when the tire crane A is supplied with power in the travel lane a3, the current collector 8 is transferred from the open end of the passage 9c to the inside thereof, and the vertical alignment is performed by the hydraulic cylinder 28. Thereafter, the hydraulic cylinder 25 is operated so that the terminals 18a to 18d come into contact with the power supply trolley wires 16a to 16d with a predetermined pressing force P, thereby supplying power.
[0025]
And this tire type crane A will drive | work the driving | running | working lane a3, and will carry out cargo handling. In this driving | running | working process, the unevenness | corrugation of the ground of the driving | running | working lane a3, etc. WHEREIN: Current collector 8 and electric power supply trolley wires 16a-16d When the change occurs in the interval, the hydraulic cylinder 25 and the pantograph mechanism 19 act when the change is in the horizontal direction, and when the change is in the vertical direction, the hydraulic cylinder 28 acts and collects the current. The device 8 can swing in the horizontal direction and the vertical direction to hold the pressing force P of the terminals 18a to 18d.
[0026]
【The invention's effect】
As described above, according to the present invention, no exhaust gas or noise is generated when power is supplied to a tire crane, so that not only environmental deterioration can be prevented, but also maintenance costs can be reduced. In addition, since there is no need to wind or unwind the power supply cable, there are many effects such as no damage to the power supply cable.
[Brief description of the drawings]
FIG. 1 is a plan view of a container terminal to which a power supply device for a tire type crane according to the present invention is applied.
FIG. 2 is a side view of a passage.
FIG. 3 is a side view of a power supply device for a tire crane according to the present invention.
4 is a cross-sectional view taken along the line CC ′ of FIG.
5 is a cross-sectional view taken along the line DD ′ of FIG.
FIG. 6 is a side view of a conventional tire crane.
FIG. 7 is a plan view of a conventional container terminal.
[Explanation of symbols]
A tire type crane B container terminals a1 to a5 traveling lane 1 crane body 2 trolley 6 spreader 8 current collectors 15a and 15b guide rails 16a to 16d trolley wire for feeding

Claims (1)

A power supply trolley wire is provided along the traveling lane provided in the container terminal, and the power supply trolley wire is provided on the tire-type crane , and includes a guide roller and a power collector having a panda graph mechanism. In the power supply device for a tire-type crane, the guide rail and the power supply trolley wire are provided above and below the inner surface of the outer wall that extends to the side or the side of the traveling lane, and the current collector A power supply device for a tire-type crane, in which the hydraulic power holding means is brought into contact with the power supply trolley wire and the position thereof is held.

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